Merge branch 'master' of gitea.larke.org:kevin/libcw

Makefile.am

@@ -7,6 +7,9 @@ libcwSRC +=                      src/libcw/cwCommonImpl.cpp src/libcw/cwMem.cpp
 libcwHDR += src/libcw/cwString.h   src/libcw/cwMath.h   src/libcw/cwVectOps.h src/libcw/cwMtx.h    src/libcw/cwVariant.h
 libcwSRC += src/libcw/cwString.cpp src/libcw/cwMath.cpp                       src/libcw/cwMtx.cpp  src/libcw/cwVariant.cpp
 
+libcwHDR += src/libcw/cwB23Tree.h
+libcwSRC += src/libcw/cwB23Tree.cpp
+
 libcwHDR += src/libcw/cwFileSys.h   src/libcw/cwText.h   src/libcw/cwFile.h    src/libcw/cwTime.h   src/libcw/cwLex.h   src/libcw/cwNumericConvert.h 
 libcwSRC += src/libcw/cwFileSys.cpp src/libcw/cwText.cpp src/libcw/cwFile.cpp  src/libcw/cwTime.cpp src/libcw/cwLex.cpp
 
@@ -28,8 +31,8 @@ libcwSRC += src/libcw/cwAudioFile.cpp   src/libcw/cwMidiFile.cpp
 libcwHDR += src/libcw/cwAudioFileOps.h    src/libcw/cwAudioTransforms.h   src/libcw/cwDspTransforms.h   src/libcw/cwAudioFileProc.h    src/libcw/cwPvAudioFileProc.h
 libcwSRC += src/libcw/cwAudioFileOps.cpp  src/libcw/cwAudioTransforms.cpp src/libcw/cwDspTransforms.cpp src/libcw/cwAudioFileProc.cpp  src/libcw/cwPvAudioFileProc.cpp
 
-libcwHDR += src/libcw/cwFlow.h    src/libcw/cwFlowTypes.h     src/libcw/cwFlowProc.h     src/libcw/cwFlowCross.h
+libcwHDR += src/libcw/cwFlow.h    src/libcw/cwFlowDecl.h src/libcw/cwFlowTypes.h     src/libcw/cwFlowProc.h     src/libcw/cwFlowCross.h
-libcwSRC += src/libcw/cwFlow.cpp  src/libcw/cwFlowTypes.cpp   src/libcw/cwFlowProc.cpp   src/libcw/cwFlowCross.cpp
+libcwSRC += src/libcw/cwFlow.cpp                         src/libcw/cwFlowTypes.cpp   src/libcw/cwFlowProc.cpp   src/libcw/cwFlowCross.cpp
 
 if cwWEBSOCK
 libcwHDR += src/libcw/cwWebSock.h   src/libcw/cwWebSockSvr.h
@@ -54,8 +57,12 @@ libcwSRC += src/libcw/cwAudioDevice.cpp
 
 if cwALSA
 
-libcwHDR += src/libcw/cwMidiPort.h                            src/libcw/cwAudioDeviceAlsa.h   src/libcw/cwAudioDeviceFile.h                                  
+libcwHDR += src/libcw/cwMidiDevice.h   src/libcw/cwMidiParser.h   src/libcw/cwMidiAlsa.h     src/libcw/cwMidiFileDev.h   src/libcw/cwMidiDeviceTest.h
-libcwSRC += src/libcw/cwMidiPort.cpp src/libcw/cwMidiAlsa.cpp src/libcw/cwAudioDeviceAlsa.cpp src/libcw/cwAudioDeviceFile.cpp src/libcw/cwAudioDeviceTest.cpp
+libcwSRC += src/libcw/cwMidiDevice.cpp src/libcw/cwMidiParser.cpp src/libcw/cwMidiAlsa.cpp   src/libcw/cwMidiFileDev.cpp src/libcw/cwMidiDeviceTest.cpp
+
+libcwHDR += src/libcw/cwAudioDeviceAlsa.h   src/libcw/cwAudioDeviceFile.h                                  
+libcwSRC += src/libcw/cwAudioDeviceAlsa.cpp src/libcw/cwAudioDeviceFile.cpp src/libcw/cwAudioDeviceTest.cpp
+
 
 if cwWEBSOCK
 libcwHDR += src/libcw/cwIo.h   src/libcw/cwIoTest.h     src/libcw/cwIoMinTest.h   src/libcw/cwIoSocketChat.h   src/libcw/cwIoAudioPanel.h    src/libcw/cwIoAudioMidi.h

cwAudioDeviceAlsa.cpp

@@ -1368,7 +1368,7 @@ cw::rc_t cw::audio::device::alsa::create( handle_t& hRef, struct driver_str*& dr
     p->pollfds         = mem::allocZ<struct pollfd>(    p->pollfdsAllocCnt );
     p->pollfdsDesc     = mem::allocZ<pollfdsDesc_t>(p->pollfdsAllocCnt );
 
-    if((rc = thread::create(p->thH,_threadFunc,p)) != kOkRC )
+    if((rc = thread::create(p->thH,_threadFunc,p,"alsa_audio")) != kOkRC )
     {
       rc = cwLogError(rc,"Thread create failed.");
     }

cwAudioDeviceFile.cpp

@@ -664,7 +664,7 @@ cw::rc_t    cw::audio::device::file::create( handle_t& hRef, struct driver_str*&
   p->driver.deviceSeek           = deviceSeek;
   p->driver.deviceRealTimeReport = deviceRealTimeReport;
 
-  if((rc = create( p->threadH, _threadCbFunc, p )) != kOkRC )
+  if((rc = create( p->threadH, _threadCbFunc, p, "audio_dev_test" )) != kOkRC )
   {
     rc = cwLogError(rc,"Audio device file thread create failed.");
     goto errLabel;

cwAvahiSurface.cpp

@@ -412,7 +412,7 @@ int main( int argc, const char* argv[] )
 
   
   // create the TCP listening thread
-  if((rc = thread::create( app.tcpThreadH, tcpReceiveCallback, &app )) != kOkRC )
+  if((rc = thread::create( app.tcpThreadH, tcpReceiveCallback, &app, "avahi_suf" )) != kOkRC )
     goto errLabel;
   
   // Allocate Avahi thread 

cwB23Tree.cpp

@@ -0,0 +1,47 @@
+#include "cwCommon.h"
+#include "cwLog.h"
+#include "cwCommonImpl.h"
+#include "cwMem.h"
+#include "cwObject.h"
+#include "cwB23Tree.h"
+
+cw::rc_t   cw::b23::test( const object_t* cfg )
+{
+  rc_t rc = kOkRC;
+
+  /*
+  typedef struct tree<unsigned,char*,kInvalidIdx> tree_t;
+
+  tree_t* t = create<unsigned,char*,kInvalidIdx>(4);
+
+  destroy(t);
+  */
+
+  typedef struct tree_str<unsigned,const char*,kInvalidIdx> tree_t;
+
+  tree_t t;
+  typedef struct kv_str
+  {
+    unsigned k;
+    const char* v;
+  } kv_t;
+
+  kv_t kvA[] = { {0,"zero"}, {1,"one"}, {2,"two"}, {3,"three"}, {4,"four"}, {5,"five"},
+                 {6,"siz"}, {7,"seven"}, {8,"eight"}, {9,"nine"},  {10,"ten"}, {11,"eleven"},
+                 {12,"twelve"}, {13,"thirt"}, {14,"fourt"}, {15,"fift"}, {16,"sixt"} };
+
+  unsigned kvN = sizeof(kvA)/sizeof(kvA[0]);
+  
+  t.create(4);
+
+  for(unsigned i=0; i<kvN; ++i)
+  {
+    t.insert(kvA[i].k,kvA[i].v);
+    t.print();
+  }
+
+  t.destroy();
+  
+  return rc;
+}
+

cwB23Tree.h

@@ -0,0 +1,791 @@
+#ifndef cwB23Tree_h
+#define cwB23Tree_h
+
+namespace cw
+{
+  namespace b23
+  {
+
+    /*
+      This is a binary tree implemented as a (2-3 tree)
+      See: docs/2-3-trees.pdf
+      or https://cs.wellesley.edu/~cs231/handouts/2-3-trees.pdf
+     */
+      
+    
+    template< typename K, typename V, K null_key >
+    struct tree_str
+    {
+
+      typedef enum {
+        kInvalidNodeTId,
+        k1LeafTId,  // leaf where kv0 is in use but kv1 is not
+        k2LeafTId,  // leaf where kv0 and kv1 are in use
+        k2NodeTId,  // node with a lo,hi branch but no middle branch
+        k3NodeTId   // node with a lo,hi, and middle branch
+      } node_tid_t;
+      
+      typedef struct value_str
+      {
+        V value;
+        struct value_str* link;
+      } value_t;
+      
+      typedef struct key_value_str
+      {
+        K        key;     // Key for this k/v pair
+        value_t* valueL;  // Linked list of values which share the same key.
+        
+        bool is_empty() const { return key==null_key; }
+        bool is_not_empty() const  { return !is_empty(); }
+        void set_empty() { key=null_key; valueL=nullptr; }
+        
+      } key_value_t;
+
+      struct node_str;
+      typedef struct match_result_str
+      {
+        struct node_str* node;
+        key_value_t*     kv;
+        unsigned         kv_idx; // 0 or 1          
+      } match_result_t;
+      
+      typedef struct node_str
+      {
+
+        unsigned nid;
+        
+        struct node_str* parent;
+        struct node_str* l_link; // low link
+        struct node_str* m_link; // middle link
+        struct node_str* h_link; // high link
+
+        // If kv1 is not empty then kv1.key is > kv0.key
+        key_value_t kv0; // kv0 always contains a valid key-value pair
+        key_value_t kv1; // kv1 is only valid if this is a 3 node
+
+        unsigned key_value_count() const { return kv1.is_empty() ? 1 : 2; }
+
+        const K&  min_key() const { return kv0.key; }
+        const K&  max_key() const { return kv1.is_empty() ? kv0.key : kv1.key; }
+
+        // Leaf nodes have no child pointers, but may have one or two key-value pairs.
+        bool is_leaf() const   { return this->l_link == nullptr; }
+        bool is_not_leaf() const { return !is_leaf(); }
+
+        bool is_1_leaf() const { return is_leaf() && kv1.is_empty(); }
+        bool is_2_leaf() const { return is_leaf() && kv1.is_not_empty(); }
+
+        // 2 nodes have one key-value pair and valid l_link and h_link;
+        bool is_2_node() const { return !this->is_leaf() && this->m_link == nullptr; }
+
+        // 3 nodes have two key-value pairs and valid l,m,h links
+        bool is_3_node() const { return !this->is_leaf() && this->m_link != nullptr; }
+
+        node_tid_t type_id() const { return is_leaf() ? (is_1_leaf() ? k1LeafTId : k2LeafTId) : (is_2_node() ? k2NodeTId : k3NodeTId); }
+
+        bool is_valid()
+        {
+          // if l_link is null then h_link and m_link are also null. if l_link is not null then neither is h_link.
+          bool fl0 = l_link==nullptr ? (h_link==nullptr && m_link==nullptr) : h_link!=nullptr;
+          
+          // kv0 is never empty
+          bool fl1 = kv0.is_not_empty() && kv0.valueL != nullptr;
+          
+          // m_link is null if kv1 is empty
+          bool fl2 = kv1.is_empty() ? m_link==nullptr : m_link!=nullptr;
+
+          return fl0 && fl1 && fl2;
+        }
+
+        
+        unsigned height() const
+        {
+          if( is_leaf() )
+            return 0;
+          
+          return l_link->height() + 1;
+        }
+
+
+        match_result_t is_key_in_node( K key )
+        {
+          match_result_t r;
+          
+          if( kv0.key == key )
+          {
+            r.node   = this;
+            r.kv     = &kv0;
+            r.kv_idx = 0;
+          }
+          else
+          {
+            if( kv1.is_not_empty() and kv1.key == key )
+            {
+              r.node   = this;
+              r.kv     = &kv1;
+              r.kv_idx = 1;
+            }
+            else
+            {
+              r.node = nullptr;
+              r.kv   = nullptr;
+              r.kv_idx = 2;
+            }
+            
+          }
+         
+          return r;
+        }
+
+        // Return the next node to this node given the key.
+        // Return nullptr if this is a leaf node.
+        struct node_str* next( K key )
+        {
+          node_t* n = nullptr;
+
+          assert( is_key_in_node(key) == false );
+
+          if( key < kv0.key )
+          {
+            n = l_link;
+          }
+          else
+          {
+            if(  key > (kv1.is_not_empty() ? kv1.key : kv0.key) )
+              n = h_link;
+            else
+              n = m_link;
+          }
+
+          return n;
+        }
+        
+        
+      } node_t;
+
+      typedef struct node_block_str
+      {
+        struct node_block_str* link;
+        node_t*                nodeA;
+        unsigned               nodeN;
+        unsigned               next_avail_node_idx; // index next empty slot      
+      } node_block_t;
+
+      typedef struct value_block_str
+      {
+        struct value_block_str* link;
+        value_t*                valueA;
+        unsigned                valueN;
+        unsigned                next_avail_value_idx; // index of next empty slot
+      } value_block_t;
+
+      node_t*        _root = nullptr;
+      node_block_t*  _beg_node_block = nullptr;   // First node in node block linked list
+      node_block_t*  _end_node_block = nullptr;   // Last block in node block linked list (always partially empty)
+      value_block_t* _beg_value_block = nullptr;  // First node in value block linked list
+      value_block_t* _end_value_block = nullptr;  // Last block in value block linked list (always partially empty)
+      node_t*        _free_node_list = nullptr;   // Linked list, through 'parent' of avail nodes.
+      value_t*       _free_value_list = nullptr;  // 
+      unsigned       _nodes_per_block = 0;
+      unsigned       _values_per_block = 0;
+      unsigned       _nid = 0;
+
+      const char* node_tid_to_label( node_tid_t tid )
+      {
+        switch(tid)
+        {
+        case kInvalidNodeTId: return "<inv>";
+        case k1LeafTId: return "1L";
+        case k2LeafTId: return "2L";
+        case k2NodeTId: return "2N";          
+        case k3NodeTId: return "3N";
+        }
+        return "<unk>";
+      }
+
+
+      // Return the node and kv that matches the key.
+      match_result_t key_to_node( K key )
+      {
+        match_result_t r;
+        node_t* n = _root;
+        while(n != nullptr)
+        {
+          r = n->is_key_in_node(key);
+          
+          if( r.node != nullptr   )
+            break;
+
+          n = n->next(key);
+        }
+
+        return r;
+      }
+      
+      node_block_t*  _alloc_node_block( unsigned nodes_per_block )
+      {
+        node_block_t* b = mem::allocZ<node_block_t>();
+        
+        b->nodeA   = mem::allocZ<node_t>( nodes_per_block );
+        b->nodeN   = nodes_per_block;
+
+        if( _beg_node_block == nullptr )
+          _beg_node_block = b;
+        else
+          _end_node_block->link = b;
+      
+        _end_node_block = b;
+
+        return b;
+      }
+
+      value_block_t*  _alloc_value_block( unsigned values_per_block )
+      {
+        value_block_t* b = mem::allocZ<value_block_t>();
+        
+        b->valueA   = mem::allocZ<value_t>( values_per_block );
+        b->valueN   = values_per_block;
+
+        if( _beg_value_block == nullptr )
+          _beg_value_block = b;
+        else
+          _end_value_block->link = b;
+      
+        _end_value_block = b;
+
+        return b;
+      }
+
+      void _alloc_value( key_value_t& kv, V new_value )
+      {
+        value_t* v = nullptr;
+        
+        if( _free_value_list != nullptr )
+        {
+          v = _free_value_list;
+          _free_value_list = v->link;
+          v->link = nullptr;          
+        }
+        else
+        {
+          if( _end_value_block==nullptr || _end_value_block->next_avail_value_idx >= _end_value_block->valueN )
+            _alloc_value_block(_values_per_block);
+
+          assert( _end_value_block!= nullptr && _end_value_block->next_avail_value_idx < _end_value_block->valueN );
+
+          v = _end_value_block->valueA + _end_value_block->next_avail_value_idx++;
+        }
+
+        v->value = new_value;
+        v->link = kv.valueL;
+        kv.valueL = v;
+        
+      }
+
+      // Initialize a kv with a new key, value pair
+      void _init_key_value( key_value_t& kv, K key, V value )
+      {
+        kv.key = key;
+        _alloc_value(kv,value);
+      }
+
+      // Initialize a kv from an existing kv pair
+      void _move_key_value( key_value_t& lhs_kv, key_value_t& rhs_kv )
+      {
+        lhs_kv = rhs_kv;
+        rhs_kv.set_empty();
+      }
+
+      node_t* _alloc_node( node_t* parent )
+      {
+        node_t* n = nullptr;
+        
+        if( _free_node_list != nullptr )
+        {
+          n = _free_node_list;
+          memset(n,0,sizeof(*n));
+          _free_node_list = _free_node_list->parent;          
+        }
+        else
+        {
+          // if the current node block has no available nodes then create a new node block
+          if( _end_node_block==nullptr || _end_node_block->next_avail_node_idx >= _end_node_block->nodeN )
+            _alloc_node_block(_nodes_per_block);
+
+          // a node block with available nodes must now exist 
+          assert( _end_node_block!= nullptr && _end_node_block->next_avail_node_idx < _end_node_block->nodeN );
+          
+          // get the next available node
+          n = _end_node_block->nodeA + _end_node_block->next_avail_node_idx++;
+        }
+        
+        n->nid    = _nid++;
+        n->parent = parent;
+        n->kv0.key = null_key;
+        n->kv1.key = null_key;
+        return n;
+      }
+
+      // allocate a new node with a new key / value pair
+      node_t* _alloc_node( node_t* parent, K new_key, V new_value )
+      {
+        node_t* n = _alloc_node(parent);
+        
+        // all new nodes have a valid k/v pair in kv0
+        _init_key_value( n->kv0, new_key, new_value );
+        
+        return n;
+      }
+
+      // allocate a new node with an existing k/v apir.
+      node_t* _alloc_node( node_t* parent, key_value_t& kv )
+      {
+        node_t* n = _alloc_node(parent);
+        _move_key_value( n->kv0, kv );
+        return n;
+      }
+
+      void _free_key_value( key_value_t& kv )
+      {
+        // Free values by placing the values on the _free_value_list;
+        value_t* v  = kv.valueL;
+        while( v != nullptr )
+        {
+          value_t* v0 = v->link;
+
+          // TODO: figure out how to call release on v->value
+          // if release<T>(v->value) exists
+          // release<T>(v->value);
+          
+          v->link = _free_value_list;
+          _free_value_list = v;
+          v = v0;
+        }
+
+        kv.set_empty();
+      }
+
+      void _free_node( node_t* node )
+      {        
+        _free_key_value(node->kv0);
+        _free_key_value(node->kv1);
+        
+        // track free nodes by forming a list using the 'parent' pointer
+        node->parent = _free_node_list;
+        _free_node_list = node;
+      }
+      
+      rc_t create( unsigned nodes_per_block )
+      {
+        rc_t rc  = kOkRC;
+
+        _nodes_per_block = nodes_per_block;
+        _values_per_block= nodes_per_block;
+
+        _alloc_node_block(nodes_per_block);
+        _alloc_value_block(nodes_per_block);
+        
+        return rc;
+      }      
+
+      void destroy()
+      {
+        value_block_t* vb = _beg_value_block;
+        while( vb!=nullptr )
+        {
+          value_block_t* vb0 = vb->link;
+          mem::release(vb->valueA);
+          mem::release(vb);
+          vb=vb0;
+        }
+
+        node_block_t* nb = _beg_node_block;
+        while( nb !=nullptr )
+        {
+          node_block_t* nb0 = nb->link;
+          mem::release(nb->nodeA);
+          mem::release(nb);
+          nb=nb0;
+        }
+      }
+
+      void _insert_into_1_leaf(node_t* n, K key, V value )
+      {
+        if( key > n->kv0.key )
+          _init_key_value(n->kv1,key,value);
+        else
+        {
+          _move_key_value(n->kv1,n->kv0);
+          _init_key_value(n->kv0,key,value);
+        }
+      }
+
+
+      node_t* _2_leaf_to_2_node_sub_tree( node_t* n, K key, V value )
+      {
+        assert( n->is_2_leaf() );
+        
+        if( key < n->kv0.key )
+        {
+          n->l_link = _alloc_node(n,key,value);
+          n->h_link = _alloc_node(n,n->kv1);            
+        }
+        else
+        {
+          if( key > n->kv1.key )
+          {
+            n->l_link = _alloc_node(n,n->kv0);
+            n->h_link = _alloc_node(n,key,value);
+            _move_key_value(n->kv0,n->kv1);
+          }
+          else
+          {
+            n->l_link = _alloc_node(n,n->kv0);
+            n->h_link = _alloc_node(n,n->kv1);
+            _init_key_value(n->kv0,key,value);
+          }
+        }
+
+        assert(n->is_2_node());
+        return n;
+      }
+
+      void _link_to_parent_l( node_t* parent, node_t* child )
+      {
+        parent->l_link = child;
+        child->parent = parent;
+      }
+      
+      void _link_to_parent_m( node_t* parent, node_t* child )
+      {
+        parent->m_link = child;
+        child->parent = parent;
+      }
+      void _link_to_parent_h( node_t* parent, node_t* child )
+      {
+        parent->h_link = child;
+        child->parent = parent;
+      }
+
+      
+      // convert 'n', a 2-node, into a 3-node by absorbing it's 2-node child 
+      void _2_node_to_3_node( node_t* n, node_t* child )
+      {
+        assert( n->is_2_node() );
+        
+        // if child is the l subtree
+        if( child == n->l_link )
+        {
+          _move_key_value(n->kv1,n->kv0);
+          _move_key_value(n->kv0,child->kv0);
+
+          _link_to_parent_l(n,child->l_link);
+          _link_to_parent_m(n,child->h_link);
+          
+        }
+        else  // child must be the h subtree
+        {
+          assert( child == n->h_link );
+
+          _move_key_value(n->kv1,child->kv0);
+
+          _link_to_parent_m(n,child->l_link);
+          _link_to_parent_h(n,child->h_link);
+        }
+
+        _free_node(child);
+
+        assert( n->is_3_node() );
+      }
+
+      node_t* _2node_from_parts( node_t* parent, key_value_t& kv, node_t* l_subtree, node_t* h_subtree )
+      {
+          node_t* h_node = _alloc_node(parent,kv);
+          _link_to_parent_l(h_node,l_subtree);
+          _link_to_parent_h(h_node,h_subtree);
+          return h_node;
+      }
+
+      // Convert a 3-node to a balanced 2-node.
+      // 'child' is a balanced sub-trees of 'n' 
+      void _3_node_to_balanced_2_node( node_t* n, node_t* child )
+      {
+        assert( n->is_3_node() );
+        assert( child->is_2_node() );
+
+        // if the child is on the l-subtree
+        if( child == n->l_link )
+        {
+          // make l-key the central node and the h-key the balanced h-subtree
+          n->h_link = _2node_from_parts(n,n->kv1,n->m_link,n->h_link);
+        }
+        else
+        {
+          if( child == n->h_link )
+          {
+            // make h-key the central node and l-key the balanced l-subtree
+            n->l_link = _2node_from_parts(n,n->kv0,n->l_link,n->m_link);
+            _move_key_value(n->kv0,n->kv1);            
+          }
+          else
+          {
+            // make m-subtree he central node and l-key the balanced l-subtree and h-key the balanced h-subtree
+            assert( child == n->m_link );
+            n->l_link = _2node_from_parts(n,n->kv0,n->l_link,child->l_link);
+            n->h_link = _2node_from_parts(n,n->kv1,child->h_link,n->h_link);
+            _move_key_value(n->kv0,child->kv0);
+          }
+        }
+
+        // n is now a 2-node - remove the old m_link
+        n->m_link = nullptr;
+        
+        assert( n->is_2_node() );
+        assert( n->l_link->is_2_node() );
+        assert( n->h_link->is_2_node() );
+      }
+      
+      void _insert_up( node_t* n, node_t* sub_tree )
+      {
+        while(1)
+        {
+            // if n is null then the root was already processed and we are done
+          if( n == nullptr )
+            break;
+          
+          if( n->is_2_node() )
+          {
+            // if n is a 2-node the sub-tree is absorbed ...
+            _2_node_to_3_node(n,sub_tree); 
+            break; // .. and we are done
+          }
+          else // n is a 3-node
+          {
+            // only 2-nodes and 3-nodes can be accessed when going up the tree
+            assert( n->is_3_node() );
+            
+            // create a balanced 2-node from the 3-node + sub-tree
+            _3_node_to_balanced_2_node(n,sub_tree);
+
+            // the tree may now be imbalanced so continue upward
+            sub_tree = n;
+            n = n->parent;
+          }
+        }
+      }
+      
+      void _insert_down( node_t* n, K key, V value )
+      {
+        while(1)
+        {
+          // If the key already exists at node n->kv0 then insert it in the kv0 value list
+          if( key == n->kv0.key )
+          {
+            _alloc_value(n->kv0,value);
+            return;
+          }
+
+          // If the key already exists at node n->kv1 then inser it in the kv1 value list
+          if( n->kv1.is_not_empty() && key == n->kv1.key )
+          { 
+            _alloc_value(n->kv1,value);
+            return;
+          }
+          
+          switch( n->type_id() )
+          {
+          case k1LeafTId:
+            _insert_into_1_leaf(n,key,value);
+            return; // the new k/v was absorbed - we're done.
+            
+          case k2LeafTId:
+            if( key == 10 )
+            {
+              printf("break\n");
+            }
+            _insert_up( n->parent, _2_leaf_to_2_node_sub_tree(n, key, value ));
+            return; // the new k/v inserted on the upward path
+            
+          case k2NodeTId:
+            n = key < n->kv0.key ? n->l_link : n->h_link;
+            break;
+            
+          case k3NodeTId:
+            n = key < n->kv0.key ? n->l_link : (key < n->kv1.key ? n->m_link : n->h_link);
+            break;
+            
+          default:
+            assert(0);
+          }
+          
+        }
+      }
+      
+      void insert( K key, V value )
+      {
+        if( _root == nullptr )
+          _root = _alloc_node(nullptr,key,value);
+        else
+          _insert_down(_root,key,value);        
+      }
+
+
+      match_result_t _in_order_successor( const match_result_t& mr0 )
+      {
+        assert( mr0.node != nullptr && mr0.node->is_not_leaf() );
+
+        match_result_t r;
+        node_t* n;
+
+        // if mr0 is a 2 node or the high value of a 3 node
+        if( mr0.node->is_2_node() || (mr0.node->is_3_node() && mr0.kv_idx == 1) )
+          n = mr0.node->h_link; // get right subtree
+        else
+        {
+          assert( mr0.node->is_3_node() && mr0.kv_idx == 0 );
+          n = mr0.node->m_link;
+        }
+          
+        // go to left most leaf
+        while( n->is_not_leaf() )
+          n = n->l_link;
+
+        r.node   = n;
+        r.kv     = &n->kv0;
+        r.kv_idx = 0;
+
+        return r;
+      }
+
+      void remove_key_value( K key, const V& value )
+      {
+      }
+
+
+      rc_t remove_key( K key )
+      {
+        rc_t rc = kOkRC;
+        
+        match_result_t mr0 = key_to_node(key);
+        match_result_t mr1;
+
+        // the key does not exist in the tree.
+        if( mr0.node == nullptr )
+        {
+          rc = cwLogError(kEleNotFoundRC,"The element to remove was not found.");
+          goto errLabel;          
+        }       
+
+
+        
+        
+        // if the target node is a leaf
+        if( mr0.node->is_leaf() )
+        {
+          if( mr0.node->is_2_leaf() )
+          {
+            if( mr0.kv_idx == 0 )
+              _move_key_value(*mr0.kv0,*mr0.kv1);
+            
+            //done: no hole exists in the leaf node
+            goto errLabel;
+          }
+          
+          mr1 = mr0; 
+        }
+        else // the target node is a 2 or 3 node
+        {
+          // locate the in-order sucessor
+          mr1 = _in_order_successor(mr0);
+
+          // the in-order successor must exist if n is a 2 or 3 node
+          assert( mr0->kv!= nullptr && mr1.kv != nullptr );
+
+          // move the in order successor value to the target node
+          _move_key_value(*mr0.kv,*mr1.kv);
+          
+          // mr1.kv is now empty
+
+          // if mr1.node->kv0 is now empty
+          if(mr1.node->is_2_leaf() && mr1.kv_idx == 0 )
+          {
+            _move_key_value(*mr1.kv0,*mr1.kv1);
+            
+            // done: mr1.node is now a 1 leaf - we're done
+            assert( mr1.node->is_1_leaf() );
+              
+            goto errLabel;
+          }
+
+          
+        }
+
+        assert( mr1.node != nullptr && mr1.node->is_leaf() );          
+        
+        if(  mr1->is_2_leaf() )
+        {
+        }
+        else
+        {
+          
+        }
+        
+
+        
+        
+        // if key is found on internal node - replace with in-order successor.
+        // if in-order successor is on a non-leaf node continue replacing
+        // with in-order successor until the replacement leaves a hole
+        // in a leaf node.
+        // If the terminal node with the hole is a 2-leaf then change it to a 1-leaf : DONE
+        // if the terminal node is a 3-leaf then
+
+      errLabel:
+        return rc;
+      }
+
+      
+
+      
+      void _print( const node_t* n, unsigned level )
+      {
+        if( n->l_link != nullptr )
+          _print(n->l_link,level + 1);
+
+        unsigned pnid = n->parent==nullptr ? 666 : n->parent->nid;
+        printf("%i h:%i k0:%i %s id:%i par:%i\n",level,n->height(),n->kv0.key,node_tid_to_label(n->type_id()),n->nid,pnid);
+        
+        if( n->m_link != nullptr )
+          _print(n->m_link,level+1);
+        
+        if( n->kv1.is_not_empty() )
+          printf("%i h:%i k1:%i %s id:%i par:%i\n",level,n->height(),n->kv1.key,node_tid_to_label(n->type_id()),n->nid,pnid);
+            
+        if( n->h_link != nullptr )
+          _print(n->h_link,level+1);
+          
+                
+      }
+      
+      void print(const node_t* n = nullptr)
+      {
+        unsigned level = 0;
+        
+        if( n == nullptr )
+          n = _root;
+        _print(n,level);
+        printf("done\n");
+        
+      }
+      
+    };
+
+    rc_t test( const object_t* cfg );
+  }
+
+}
+
+
+    
+#endif

cwCommon.h

@@ -38,7 +38,7 @@ namespace cw
    kOpFailRC,               // 19
    kSyntaxErrorRC,          // 20
    kBufTooSmallRC,          // 21
-   kLabelNotFoundRC,        // 22 - use by cwObject to indicate that an optional value does not exist.
+   kEleNotFoundRC,          // 22 - use by cwObject to indicate that an optional value does not exist.
    kDuplicateRC,            // 23 - an invalid duplicate was detected
    kAssertFailRC,           // 24 - used with cwLogFatal
    kInvalidDataTypeRC,      // 25

cwCsv.cpp

@@ -237,7 +237,7 @@ namespace cw
       for(unsigned i=0; i<titleN; ++i)
         if( _title_to_col_index( p, titleA[i] ) == kInvalidIdx )
         {
-          rc = cwLogError(kLabelNotFoundRC,"The required column '%s' does not exist.",titleA[i]);
+          rc = cwLogError(kEleNotFoundRC,"The required column '%s' does not exist.",titleA[i]);
           goto errLabel;
         }
 
@@ -420,6 +420,12 @@ unsigned cw::csv::title_col_index( handle_t h, const char* title )
   return _title_to_col_index(p,title);
 }
 
+bool cw::csv::has_field( handle_t h, const char* title )
+{
+  csv_t* p = _handleToPtr(h);
+  return _title_to_col_index(p,title) != kInvalidIdx;
+}
+
 
 cw::rc_t cw::csv::rewind( handle_t h )
 {

cwCsv.h

@@ -22,6 +22,7 @@ namespace cw
     
     const char* col_title( handle_t h, unsigned idx );
     unsigned title_col_index( handle_t h, const char* title );
+    bool has_field( handle_t h, const char* title );
 
     // Reset the CSV to make the title line current.
     // The next call to 'next_line()' will make the first data row current.

cwEuCon.cpp

@@ -942,7 +942,7 @@ namespace cw
         return cwLogError(rc,"Unable to create EuCon server.");
 
       // Create the application thread
-      if((rc = thread::create( app.thH, appThreadFunc, &app )) != kOkRC )
+      if((rc = thread::create( app.thH, appThreadFunc, &app, "eu_con" )) != kOkRC )
         return cwLogError(rc,"App thread create failed.");
 
       // Start the application thread

cwFlow.h

@@ -46,6 +46,7 @@ namespace cw
         
     } external_device_t;
 
+
     void print_abuf( const struct abuf_str* abuf );
     void print_external_device( const external_device_t* dev );
     
@@ -58,6 +59,7 @@ namespace cw
 
     rc_t destroy( handle_t& hRef );
 
+    unsigned preset_cfg_flags( handle_t h );
 
     // Run one cycle of the network.
     rc_t exec_cycle( handle_t h );
@@ -66,6 +68,9 @@ namespace cw
     rc_t exec(    handle_t h );
 
     rc_t apply_preset( handle_t h, const char* presetLabel );
+    rc_t apply_preset( handle_t h, const multi_preset_selector_t& multi_preset_sel );
+    rc_t apply_dual_preset( handle_t h, const char* presetLabel_0, const char* presetLabel_1, double coeff );
+
         
     rc_t set_variable_value( handle_t h, const char* inst_label, const char* var_label, unsigned chIdx, bool value     );
     rc_t set_variable_value( handle_t h, const char* inst_label, const char* var_label, unsigned chIdx, int value      );

cwFlowCross.cpp

@@ -9,6 +9,7 @@
 #include "cwMtx.h"
 #include "cwDspTypes.h" // real_t, sample_t
 #include "cwDspTransforms.h"
+#include "cwFlowDecl.h"
 #include "cwFlow.h"
 #include "cwFlowTypes.h"
 #include "cwFlowProc.h"
@@ -355,6 +356,15 @@ cw::rc_t cw::flow_cross::destroy( handle_t& hRef )
   return rc;  
 }
 
+unsigned cw::flow_cross::preset_cfg_flags( handle_t h )
+{
+  flow_cross_t* p = _handleToPtr(h);
+  if( p->netN > 0 )
+    return preset_cfg_flags( p->netA[0].flowH );
+  
+  return 0;
+}
+
 
 cw::rc_t cw::flow_cross::exec_cycle( handle_t h )
 {
@@ -425,6 +435,18 @@ cw::rc_t cw::flow_cross::apply_preset( handle_t h, destId_t destId, const char*
   return rc;  
 }
 
+cw::rc_t cw::flow_cross::apply_preset( handle_t h, destId_t destId, const flow::multi_preset_selector_t& multi_preset_sel )
+{
+  rc_t          rc       = kOkRC;
+  flow_cross_t* p        = _handleToPtr(h);
+  unsigned      flow_idx = _get_flow_index(p, destId );
+      
+  if((rc = flow::apply_preset( p->netA[flow_idx].flowH, multi_preset_sel )) != kOkRC )
+    rc = cwLogError(rc,"Muti-preset application failed.");
+
+  return rc;  
+}
+
 cw::rc_t cw::flow_cross::set_variable_value( handle_t h, destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, bool value )
 {  return _set_variable_value(h,destId,inst_label,var_label,chIdx,value); }
 

cwFlowCross.h

@@ -25,10 +25,13 @@ namespace cw
 
     rc_t destroy( handle_t& hRef );
 
+    unsigned preset_cfg_flags( handle_t h );
+    
     // Run one cycle of the network.
     rc_t exec_cycle( handle_t h );
     
     rc_t apply_preset( handle_t h, destId_t destId, const char* presetLabel );
+    rc_t apply_preset( handle_t h, destId_t destId, const flow::multi_preset_selector_t& multi_preset_sel );
 
     rc_t set_variable_value( handle_t h, destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, bool value );
     rc_t set_variable_value( handle_t h, destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, int value );

cwFlowDecl.h

@@ -0,0 +1,35 @@
+#ifndef cwFlowDecl_h
+#define cwFlowDecl_h
+
+namespace cw
+{
+  namespace flow
+  {
+    enum {
+      kPriPresetProbFl   = 0x01,
+      kSecPresetProbFl   = 0x02,
+      kInterpPresetFl    = 0x04
+    };
+    
+    typedef struct preset_order_str
+    {
+      const char* preset_label;
+      unsigned    order;
+    } preset_order_t;
+    
+    typedef struct multi_preset_selector_str
+    {
+      unsigned              flags;
+      const double*         coeffV;
+      const double*         coeffMinV;
+      const double*         coeffMaxV;
+      unsigned              coeffN;
+      
+      const preset_order_t* presetA;
+      unsigned              presetN;
+    } multi_preset_selector_t;
+    
+  }
+}
+
+#endif

cwFlowProc.cpp

@@ -8,6 +8,7 @@
 #include "cwMtx.h"
 
 #include "cwDspTypes.h" // real_t, sample_t
+#include "cwFlowDecl.h"
 #include "cwFlow.h"
 #include "cwFlowTypes.h"
 #include "cwFlowProc.h"

cwFlowTypes.cpp

@@ -7,6 +7,7 @@
 #include "cwVectOps.h"
 #include "cwMtx.h"
 #include "cwDspTypes.h" // real_t, sample_t
+#include "cwFlowDecl.h"
 #include "cwFlow.h"
 #include "cwFlowTypes.h"
 

cwFlowTypes.h

@@ -210,7 +210,10 @@ namespace cw
 
       const object_t*      presetCfg;      // presets designed for this network
       
-      unsigned             framesPerCycle; // sample frames per cycle (64)
+      unsigned             framesPerCycle;  // sample frames per cycle (64)
+      bool                 multiPriPresetProbFl; // If set then probability is used to choose presets on multi-preset application
+      bool                 multiSecPresetProbFl; // 
+      bool                 multiPresetInterpFl; // If set then interpolation is applied between two selectedd presets on multi-preset application
       unsigned             cycleIndex;     // Incremented with each processing cycle      
       unsigned             maxCycleCount;  // count of cycles to run on flow::exec() or 0 if there is no limit.
       

cwIo.cpp

@@ -9,7 +9,7 @@
 #include "cwIo.h"
 
 #include "cwMidi.h"
-#include "cwMidiPort.h"
+#include "cwMidiDevice.h"
 
 
 #include "cwObject.h"
@@ -31,6 +31,7 @@
 #include "cwWebSock.h"
 #include "cwUi.h"
 
+#include "cwVectOps.h"
 
 namespace cw
 {
@@ -165,6 +166,10 @@ namespace cw
       unsigned                      uiMapN;      //
       bool                          uiAsyncFl;
 
+      sample_t                      latency_meas_thresh_db;
+      sample_t                      latency_meas_thresh_lin;
+      bool                          latency_meas_enable_fl;
+      latency_meas_result_t         latency_meas_result;
     } io_t;
   
 
@@ -366,7 +371,7 @@ namespace cw
 
       time::get(t->nextTime);
             
-      if((rc = thread_mach::add(p->threadMachH,_timerThreadCb,t)) != kOkRC )
+      if((rc = thread_mach::add(p->threadMachH,_timerThreadCb,t, label)) != kOkRC )
       {
         rc = cwLogError(rc,"Timer thread assignment failed.");        
       }
@@ -604,7 +609,7 @@ namespace cw
         msg_t                 m;
         midi_msg_t            mm;
         const midi::packet_t* pkt = pktArray + i;        
-        io_t*                 p   = reinterpret_cast<io_t*>(pkt->cbDataPtr);
+        io_t*                 p   = reinterpret_cast<io_t*>(pkt->cbArg);
         rc_t                  rc  = kOkRC;
 
         
@@ -628,7 +633,6 @@ namespace cw
     rc_t _midiPortCreate( io_t* p, const object_t* c )
     {
       rc_t     rc             = kOkRC;
-      unsigned parserBufByteN = 1024;
       const object_t* cfg = nullptr;
 
       // get the MIDI port cfg
@@ -638,14 +642,12 @@ namespace cw
         return kOkRC;
       }
       
-      if((rc = cfg->getv("parserBufByteN", parserBufByteN,
+      if((rc = cfg->getv("asyncFl", p->midiAsyncFl )) != kOkRC )
-                         "asyncFl", p->midiAsyncFl )) != kOkRC )
       {
         rc = cwLogError(kSyntaxErrorRC,"MIDI configuration parse failed.");
       }
           
-      // initialie the MIDI system
+      if((rc = create(p->midiH, _midiCallback, p, cfg)) != kOkRC )
-      if((rc = create(p->midiH, _midiCallback, p, parserBufByteN, "app")) != kOkRC )
         return rc;
 
       
@@ -846,7 +848,7 @@ namespace cw
 
       // create the socket thread
       if( p->sockN > 0 )
-        if((rc = thread_mach::add(p->threadMachH,_socketThreadFunc,p)) != kOkRC )
+        if((rc = thread_mach::add(p->threadMachH,_socketThreadFunc,p,"io_socket")) != kOkRC )
         {
           rc = cwLogError(rc,"Error creating socket thread.");
           goto errLabel;
@@ -1070,7 +1072,7 @@ namespace cw
       return true;          
     }
 
-    // Get sample ponters or advance the pointers on the buffer associates with each device.
+    // Get sample pointers or advance the pointers on the buffer associates with each device.
     enum { kAudioGroupGetBuf, kAudioGroupAdvBuf };
     void _audioGroupProcSampleBufs( io_t* p, audioGroup_t* ag, unsigned processTypeId, unsigned inputFl  )
     {
@@ -1100,6 +1102,39 @@ namespace cw
       }
     }
 
+    void _audio_latency_measure( io_t* p, const audio_msg_t& msg )
+    {
+      if( p->latency_meas_enable_fl )
+      {
+        
+        if( msg.iBufChCnt && p->latency_meas_result.audio_in_ts.tv_nsec == 0 )
+        {
+          sample_t rms = vop::rms(msg.iBufArray[0], msg.dspFrameCnt );
+          
+          if( rms > p->latency_meas_thresh_lin  )
+            time::get(p->latency_meas_result.audio_in_ts);
+          
+          if( rms > p->latency_meas_result.audio_in_rms_max )
+            p->latency_meas_result.audio_in_rms_max = rms;
+        }
+        
+        if( msg.oBufChCnt && p->latency_meas_result.audio_out_ts.tv_nsec == 0 )
+        {
+          sample_t rms = vop::rms(msg.oBufArray[0], msg.dspFrameCnt );
+          
+          if( rms > p->latency_meas_thresh_lin  )
+            time::get(p->latency_meas_result.audio_out_ts);
+          
+          if( rms > p->latency_meas_result.audio_out_rms_max )
+            p->latency_meas_result.audio_out_rms_max = rms;
+        }
+        
+        p->latency_meas_enable_fl = p->latency_meas_result.audio_in_ts.tv_nsec == 0 ||
+                                    p->latency_meas_result.audio_out_ts.tv_nsec == 0;
+          
+      }
+    }
+
     // This is the audio processing thread function. Block on the audio group condition var
     // which is triggered when all the devices in the group are ready by _audioGroupNotifyIfReady().    
     bool _audioGroupThreadFunc( void* arg )
@@ -1134,6 +1169,8 @@ namespace cw
           if((rc = _ioCallback( ag->p, ag->asyncFl, &msg)) != kOkRC )
             cwLogError(rc,"Audio app callback failed %i.",ag->asyncFl);
 
+          _audio_latency_measure( ag->p, ag->msg );
+          
           _audioGroupProcSampleBufs( ag->p, ag, kAudioGroupAdvBuf, true );
           _audioGroupProcSampleBufs( ag->p, ag, kAudioGroupAdvBuf, false );
         }
@@ -1530,7 +1567,7 @@ namespace cw
           }
 
           // create the audio group thread
-          if((rc = thread_mach::add(p->threadMachH,_audioGroupThreadFunc,p->audioGroupA+i)) != kOkRC )
+          if((rc = thread_mach::add(p->threadMachH,_audioGroupThreadFunc,p->audioGroupA+i,"io_audio_group")) != kOkRC )
           {
             rc = cwLogError(rc,"Error creating audio group thread.");
             goto errLabel;
@@ -2107,6 +2144,8 @@ namespace cw
           
           ui::ws::releaseArgs(args);
 
+          //ui::enableCache( ui::ws::uiHandle(p->wsUiH) );
+        
         }
       }
 
@@ -2364,6 +2403,7 @@ cw::rc_t cw::io::exec( handle_t h, void* execCbArg )
   if( p->wsUiH.isValid() )
   {
     ui::flushCache( ui::ws::uiHandle( p->wsUiH ));
+    // Note this call blocks on the websocket handle: See cwUi.h:ws:exec()
     rc = ui::ws::exec( p->wsUiH );
   }
   
@@ -2422,7 +2462,7 @@ void cw::io::realTimeReport( handle_t h )
 // Thread
 //
 
-cw::rc_t cw::io::threadCreate( handle_t h, unsigned id, bool asyncFl, void* arg )
+cw::rc_t cw::io::threadCreate( handle_t h, unsigned id, bool asyncFl, void* arg, const char* label )
 {
   rc_t      rc = kOkRC;
   io_t*     p  = _handleToPtr(h);
@@ -2435,7 +2475,7 @@ cw::rc_t cw::io::threadCreate( handle_t h, unsigned id, bool asyncFl, void* arg
   t->link    = p->threadL;
   p->threadL = t;
 
-  if((rc = thread_mach::add( p->threadMachH, _threadFunc, t )) != kOkRC )
+  if((rc = thread_mach::add( p->threadMachH, _threadFunc, t, label )) != kOkRC )
     rc = cwLogError(rc,"Thread create failed.");
  
   return rc;
@@ -2668,6 +2708,19 @@ cw::rc_t cw::io::midiDeviceSend( handle_t h, unsigned devIdx, unsigned portIdx,
 // Audio
 //
 
+bool        cw::io::audioIsEnabled(            handle_t h )
+{
+  io_t* p = _handleToPtr(h);
+  for(unsigned devIdx=0; devIdx<p->audioDevN; ++devIdx)
+  {
+    audioDev_t* ad;
+    if((ad = _audioDeviceIndexToRecd(p,devIdx)) != nullptr && ad->activeFl )
+      return true;
+  }
+
+  return false;
+}
+
 unsigned    cw::io::audioDeviceCount(          handle_t h )
 {
   io_t* p = _handleToPtr(h);
@@ -3728,6 +3781,87 @@ cw::rc_t cw::io::uiSendValue( handle_t h, unsigned uuId, const char* value )
   return rc;
 }
 
+cw::rc_t cw::io::uiSendMsg( handle_t h, const char* msg )
+{
+  rc_t         rc;
+  ui::handle_t uiH;
+  if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
+    rc = ui::sendMsg(uiH, msg);
+  return rc;
+}
+
+void cw::io::latency_measure_setup(handle_t h)
+{
+  io_t* p = _handleToPtr(h);
+  p->latency_meas_enable_fl                = true;
+  p->latency_meas_thresh_db  = -50;
+  p->latency_meas_thresh_lin = pow(10.0,p->latency_meas_thresh_db/20.0);
+  p->latency_meas_result.note_on_input_ts  = {0};
+  p->latency_meas_result.note_on_output_ts = {0};
+  p->latency_meas_result.audio_in_ts       = {0};
+  p->latency_meas_result.audio_out_ts      = {0};
+  p->latency_meas_result.audio_in_rms_max  = 0;
+  p->latency_meas_result.audio_out_rms_max = 0;
+
+  if( p->midiH.isValid() )
+    latency_measure_reset(p->midiH);  
+}
+
+cw::io::latency_meas_result_t cw::io::latency_measure_result(handle_t h)
+{
+  io_t* p = _handleToPtr(h);
+
+  if( p->midiH.isValid() )
+  {
+    midi::device::latency_meas_combined_result_t r = latency_measure_result(p->midiH);
+
+    p->latency_meas_result.note_on_input_ts  = r.alsa_dev.note_on_input_ts;
+    p->latency_meas_result.note_on_output_ts = r.alsa_dev.note_on_output_ts;
+  }
+  
+  return p->latency_meas_result;
+}
+
+void cw::io::latency_measure_report(handle_t h)
+{
+  io_t* p = _handleToPtr(h);  
+  latency_meas_result_t r = latency_measure_result(h);
+  unsigned t0,t1;
+
+  if( r.note_on_input_ts.tv_nsec )
+  {
+    if( r.note_on_output_ts.tv_nsec )
+    {
+      t0 = time::elapsedMicros(r.note_on_input_ts,r.note_on_output_ts);
+      printf("midi in  - midi out:  %6i\n",t0);
+    }
+
+    if( r.audio_in_ts.tv_nsec )
+    {
+      t0 = time::elapsedMicros(r.note_on_output_ts,r.audio_in_ts);
+      t1 = time::elapsedMicros(r.note_on_input_ts,r.audio_in_ts);
+      printf("midi out - audio in:  %6i %6i\n",t0,t1);
+    }
+
+    if( r.audio_out_ts.tv_nsec )
+    {
+      t0 = time::elapsedMicros(r.audio_in_ts,r.audio_out_ts);
+      t1 = time::elapsedMicros(r.note_on_input_ts,r.audio_out_ts);
+      printf("audio in - audio out: %6i %6i\n",t0,t1);
+    }
+
+  }
+
+  printf("Thresh: %f %f db\n",p->latency_meas_thresh_db,p->latency_meas_thresh_lin);
+  if( r.audio_in_rms_max != 0 )
+    printf("audio in max:%f %f dB\n", r.audio_in_rms_max, 20.0*log10(r.audio_in_rms_max));
+  
+  if( r.audio_out_rms_max != 0 )
+    printf("audio out max:%f %f dB\n", r.audio_out_rms_max, 20.0*log10(r.audio_out_rms_max));
+  
+}
+
+
 void cw::io::uiReport( handle_t h )
 {
   ui::handle_t uiH;

cwIo.h

@@ -164,7 +164,11 @@ namespace cw
     rc_t start( handle_t h );
     rc_t pause( handle_t h );
     rc_t stop(  handle_t h );
+    
+    // Note that this call blocks on the the UI websocket handle.
+    // See ui:ws:exec().
     rc_t exec(  handle_t h, void* execCbArg=nullptr );
+    
     bool isShuttingDown( handle_t h );
     void report( handle_t h );
     void realTimeReport( handle_t h );
@@ -173,7 +177,7 @@ namespace cw
     //
     // Thread
     //
-    rc_t  threadCreate(    handle_t h, unsigned id, bool asyncFl, void* arg );
+    rc_t  threadCreate(    handle_t h, unsigned id, bool asyncFl, void* arg, const char* label );
 
     //----------------------------------------------------------------------------------------------------------
     //
@@ -231,7 +235,9 @@ namespace cw
     // Audio
     //
 
+    bool            audioIsEnabled(            handle_t h );
     unsigned        audioDeviceCount(          handle_t h );
+    unsigned        audioActiveDeviceCount(    handle_t h );
     unsigned        audioDeviceLabelToIndex(   handle_t h, const char* label );
     const char*     audioDeviceLabel(          handle_t h, unsigned devIdx );
     rc_t            audioDeviceSetUserId(      handle_t h, unsigned devIdx, unsigned userId );
@@ -398,6 +404,23 @@ namespace cw
     rc_t uiSendValue( handle_t h, unsigned uuId, double value );
     rc_t uiSendValue( handle_t h, unsigned uuId, const char* value );
 
+    rc_t uiSendMsg( handle_t h, const char* msg );
+
+
+    typedef struct
+    {
+      time::spec_t note_on_input_ts;
+      time::spec_t note_on_output_ts;
+      time::spec_t audio_in_ts;
+      time::spec_t audio_out_ts;
+      sample_t     audio_in_rms_max;
+      sample_t     audio_out_rms_max;
+    } latency_meas_result_t;
+      
+    void latency_measure_setup(handle_t h);
+    latency_meas_result_t latency_measure_result(handle_t h);
+    void latency_measure_report(handle_t h);
+    
     void uiRealTimeReport( handle_t h );
     void uiReport( handle_t h );
     

cwIoAudioMidi.cpp

@@ -870,8 +870,8 @@ namespace cw
                   am->devIdx    = pkt->devIdx;
                   am->portIdx   = pkt->portIdx;
                   am->timestamp = mm->timeStamp;
-                  am->ch        = mm->status & 0x0f;
+                  am->ch        = mm->ch;
-                  am->status    = mm->status & 0xf0;
+                  am->status    = mm->status;
                   am->d0        = mm->d0;
                   am->d1        = mm->d1;
 

cwIoFlow.cpp

@@ -10,6 +10,7 @@
 #include "cwMtx.h"
 
 #include "cwDspTypes.h"
+#include "cwFlowDecl.h"
 #include "cwFlow.h"
 #include "cwFlowTypes.h"
 #include "cwFlowCross.h"
@@ -361,8 +362,10 @@ cw::rc_t cw::io_flow::create( handle_t&       hRef,
   
  errLabel:
   if( rc != kOkRC )
+  {
+    rc = cwLogError(rc,"io_flow create failed.");
     _destroy(p);
-
+  }
   
   
   return rc;
@@ -385,6 +388,12 @@ cw::rc_t cw::io_flow::destroy( handle_t& hRef )
   return rc;
 }
 
+unsigned cw::io_flow::preset_cfg_flags( handle_t h )
+{
+  io_flow_t* p  = _handleToPtr(h);
+  return preset_cfg_flags(p->crossFlowH);
+}
+
 
 cw::rc_t cw::io_flow::exec( handle_t h, const io::msg_t& msg )
 {
@@ -419,6 +428,9 @@ cw::rc_t cw::io_flow::apply_preset( handle_t h, unsigned crossFadeMs, const char
 cw::rc_t cw::io_flow::apply_preset( handle_t h, flow_cross::destId_t destId, const char* presetLabel )
 { return apply_preset( _handleToPtr(h)->crossFlowH, destId, presetLabel ); }
 
+cw::rc_t cw::io_flow::apply_preset( handle_t h, flow_cross::destId_t destId, const flow::multi_preset_selector_t& multi_preset_sel )
+{ return apply_preset( _handleToPtr(h)->crossFlowH, destId, multi_preset_sel ); }
+
 cw::rc_t cw::io_flow::set_variable_value( handle_t h, flow_cross::destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, bool value )
 { return flow_cross::set_variable_value( _handleToPtr(h)->crossFlowH, destId, inst_label, var_label, chIdx, value ); }
 

cwIoFlow.h

@@ -10,6 +10,8 @@ namespace cw
     rc_t create( handle_t& hRef, io::handle_t ioH, double srate, unsigned crossFadeCnt, const object_t& flow_class_dict, const object_t& cfg );
     rc_t destroy( handle_t& hRef );
 
+    unsigned preset_cfg_flags( handle_t h );
+    
     rc_t exec( handle_t h, const io::msg_t& msg );
 
 
@@ -21,6 +23,8 @@ namespace cw
     // activate the next network.
     rc_t apply_preset( handle_t h, flow_cross::destId_t destId, const char* presetLabel );
 
+    rc_t apply_preset( handle_t h, flow_cross::destId_t destId, const flow::multi_preset_selector_t& multi_preset_sel );
+
     rc_t set_variable_value( handle_t h, flow_cross::destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, bool value );
     rc_t set_variable_value( handle_t h, flow_cross::destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, int value );
     rc_t set_variable_value( handle_t h, flow_cross::destId_t destId, const char* inst_label, const char* var_label, unsigned chIdx, unsigned value );

cwIoMidiRecordPlay.cpp

@@ -213,7 +213,7 @@ namespace cw
 
     void _xmit_midi( midi_record_play_t* p, unsigned devIdx, uint8_t ch, uint8_t status, uint8_t d0, uint8_t d1 )
     {
-      if( !p->supressMidiXmitFl )
+      if( !p->supressMidiXmitFl && p->midiDevA[devIdx].enableFl )
         io::midiDeviceSend( p->ioH, p->midiDevA[devIdx].midiOutDevIdx, p->midiDevA[devIdx].midiOutPortIdx, status + ch, d0, d1 );      
     }
         
@@ -1355,7 +1355,7 @@ namespace cw
               {
                 //printf("R:%i %i %i\n",mm->status, mm->d0, mm->d1);
         
-                const am_midi_msg_t* am = _midi_store( p, pkt->devIdx, pkt->portIdx, mm->timeStamp, mm->status & 0x0f, mm->status & 0xf0, mm->d0, mm->d1 );
+                const am_midi_msg_t* am = _midi_store( p, pkt->devIdx, pkt->portIdx, mm->timeStamp, mm->ch, mm->status, mm->d0, mm->d1 );
 
                 if( p->thruFl && am != nullptr )
                   _transmit_msg( p, am, false );
@@ -1465,8 +1465,6 @@ cw::rc_t cw::midi_record_play::create( handle_t& hRef,
 
   p = mem::allocZ<midi_record_play_t>();
 
-  printf("P0:%p\n",p);
-  
   p->ioH = ioH; // p->ioH is used in _destory() so initialize it here
 
   // parse the cfg 
@@ -2159,25 +2157,24 @@ unsigned cw::midi_record_play::dev_count( handle_t h )
 
 cw::rc_t cw::midi_record_play::vel_table_disable( handle_t h, unsigned devIdx )
 {
-  rc_t                rc = kOkRC;  
+  rc_t                rc        = kOkRC;  
-  midi_record_play_t* p  = _handleToPtr(h);
+  midi_record_play_t* p         = _handleToPtr(h);
+  unsigned            begDevIdx = devIdx==kInvalidIdx ? 0           : devIdx;
+  unsigned            endDevIdx = devIdx==kInvalidIdx ? p->midiDevN : begDevIdx+1;
 
-  if( devIdx != kInvalidIdx )
+  if( devIdx != kInvalidIdx && devIdx > p->midiDevN )
   {
-    if( devIdx > p->midiDevN )
+    rc = cwLogError(kInvalidArgRC,"The device index '%i'is invalid.",devIdx);
-    {
+    goto errLabel;
-      rc = cwLogError(kInvalidArgRC,"The device index '%i'is invalid.",devIdx);
+  }
-      goto errLabel;
-    }
 
-    p->midiDevA[devIdx].velTableArray = nullptr;
+  for(unsigned i=begDevIdx; i<endDevIdx; ++i)
-  }
-  else
   {
-    for(unsigned i=0; i<p->midiDevN; ++i)
+    mem::release(p->midiDevA[i].velTableArray);
-      p->midiDevA[i].velTableArray = nullptr;
+    p->midiDevA[i].velTableN = 0;
   }
 
+  
  errLabel:
   return rc;
 }

cwIoMinTest.cpp

@@ -94,13 +94,13 @@ cw::rc_t cw::min_test( const object_t* cfg )
   if((rc = create(app.ioH,cfg,minTestCb,&app)) != kOkRC )
     return rc;
 
-  if((rc = threadCreate( app.ioH, kThread0Id, asyncFl, &app )) != kOkRC )
+  if((rc = threadCreate( app.ioH, kThread0Id, asyncFl, &app, "min_test_0" )) != kOkRC )
   {
     rc = cwLogError(rc,"Thread 0 create failed.");
     goto errLabel;    
   }
   
-  if((rc = threadCreate( app.ioH, kThread1Id, asyncFl, &app )) != kOkRC )
+  if((rc = threadCreate( app.ioH, kThread1Id, asyncFl, &app, "min_test_1" )) != kOkRC )
   {
     rc = cwLogError(rc,"Thread 1 create failed.");
     goto errLabel;    

cwIoPresetSelApp.cpp

@@ -16,25 +16,25 @@
 #include "cwScoreFollowerPerf.h"
 #include "cwIoMidiRecordPlay.h"
 #include "cwIoPresetSelApp.h"
-#include "cwPianoScore.h"
 #include "cwVectOps.h"
 #include "cwMath.h"
 #include "cwDspTypes.h"
 #include "cwMtx.h"
+#include "cwFlowDecl.h"
 #include "cwFlow.h"
 #include "cwFlowTypes.h"
 #include "cwFlowCross.h"
 #include "cwIoFlow.h"
 #include "cwPresetSel.h"
 #include "cwVelTableTuner.h"
-//#include "cwCmInterface.h"
 #include "cwDynRefTbl.h"
 #include "cwScoreParse.h"
 #include "cwSfScore.h"
 #include "cwSfTrack.h"
+#include "cwPerfMeas.h"
+#include "cwPianoScore.h"
 #include "cwScoreFollower.h"
 
-#define INVALID_LOC (0)
 
 namespace cw
 {
@@ -49,6 +49,8 @@ namespace cw
       kIoReportBtnId,
       kNetPrintBtnId,
       kReportBtnId,
+      kLatencyBtnId,
+
       
       kStartBtnId,
       kStopBtnId,
@@ -76,6 +78,11 @@ namespace cw
       kPerfSelId,
       kAltSelId,
       
+      kPriPresetProbCheckId,
+      kSecPresetProbCheckId,
+      kPresetInterpCheckId,
+
+      
       kEnaRecordCheckId,
       kMidiSaveBtnId,
       kMidiLoadBtnId,
@@ -148,6 +155,7 @@ namespace cw
       { kPanelDivId,     kIoReportBtnId,  "ioReportBtnId" },
       { kPanelDivId,     kNetPrintBtnId,  "netPrintBtnId" },
       { kPanelDivId,     kReportBtnId,    "reportBtnId" },
+      { kPanelDivId,     kLatencyBtnId,   "latencyBtnId" },
         
       { kPanelDivId,     kStartBtnId,        "startBtnId" },
       { kPanelDivId,     kStopBtnId,         "stopBtnId" },
@@ -174,6 +182,9 @@ namespace cw
       { kPanelDivId,     kLoadBtnId,      "loadBtnId" },
       { kPanelDivId,     kPerfSelId,      "perfSelId" },
       { kPanelDivId,     kAltSelId,       "altSelId" },
+      { kPanelDivId,     kPriPresetProbCheckId, "presetProbPriCheckId" },
+      { kPanelDivId,     kSecPresetProbCheckId, "presetProbSecCheckId" },
+      { kPanelDivId,     kPresetInterpCheckId, "presetInterpCheckId" },
 
       { kPanelDivId,     kEnaRecordCheckId,  "enaRecordCheckId" },
       { kPanelDivId,     kMidiSaveBtnId,     "midiSaveBtnId" },
@@ -294,14 +305,16 @@ namespace cw
       score_follower::handle_t   sfH;
       midi_record_play::handle_t mrpH;
 
-      perf_score::handle_t scoreH;
+      perf_score::handle_t perfScoreH;
       loc_map_t*      locMap;    
       unsigned        locMapN;
 
       unsigned insertLoc;       // last valid insert location id received from the GUI
       
-      unsigned minLoc;          // min/max locations of the currently loaded performance
+      unsigned minScoreLoc;          // min/max locations of the currently loaded score
-      unsigned maxLoc;
+      unsigned maxScoreLoc;          //
+      unsigned minPerfLoc;           // min/max locations of the currently loaded performance
+      unsigned maxPerfLoc;
       
       unsigned beg_play_loc;    // beg/end play loc's from the UI
       unsigned end_play_loc;
@@ -318,6 +331,8 @@ namespace cw
 
       bool printMidiFl;
 
+      unsigned multiPresetFlags;
+
       bool     seqActiveFl;     // true if the sequence is currently active (set by 'Play Seq' btn)
       unsigned seqStartedFl;    // set by the first seq idle callback
       unsigned seqFragId;       // 
@@ -567,7 +582,7 @@ namespace cw
       preset_sel::destroy(app.psH);
       io_flow::destroy(app.ioFlowH);
       midi_record_play::destroy(app.mrpH);
-      perf_score::destroy( app.scoreH );
+      perf_score::destroy( app.perfScoreH );
       mem::release(app.locMap);
       return kOkRC;
     }
@@ -873,37 +888,77 @@ namespace cw
         cwLogInfo("No preset fragment was found for the requested timestamp.");
       else
       {
-        unsigned preset_idx;
+        unsigned    preset_idx        = kInvalidIdx;
+        const char* preset_label      = nullptr;
+        const char* preset_type_label = "<None>";
+        rc_t        apply_rc          = kOkRC;
         
         // if the preset sequence player is active then apply the next selected seq. preset
         // otherwise select the next primary preset for ths fragment
         unsigned seq_idx_n = app->seqActiveFl ? app->seqPresetIdx : kInvalidIdx;
 
-        // get the preset index to play for this fragment
+        if( score_evt != nullptr )
-        if((preset_idx = fragment_play_preset_index(app->psH, frag,seq_idx_n)) == kInvalidIdx )
+        {
-          cwLogInfo("No preset has been assigned to the fragment at end loc. '%i'.",frag->endLoc );
+          //printf("Meas:e:%f d:%f t:%f c:%f\n",score_evt->even,score_evt->dyn,score_evt->tempo,score_evt->cost);
+          printf("Meas:e:%f d:%f t:%f c:%f\n",score_evt->featV[perf_meas::kEvenValIdx],score_evt->featV[perf_meas::kDynValIdx],score_evt->featV[perf_meas::kTempoValIdx],score_evt->featV[perf_meas::kMatchCostValIdx]);
+        }
+
+        // if we are not automatically sequencing through the presets and a score event was given
+        if( seq_idx_n == kInvalidIdx && score_evt != nullptr && frag->multiPresetN>0 )
+        {
+          //double   coeffV[] = { score_evt->even, score_evt->dyn, score_evt->tempo, score_evt->cost };
+          //unsigned coeffN   = sizeof(coeffV)/sizeof(coeffV[0]);
+            
+          flow::multi_preset_selector_t mp_sel =
+            { .flags     = app->multiPresetFlags,
+              .coeffV    = score_evt->featV,
+              .coeffMinV = score_evt->featMinV,
+              .coeffMaxV = score_evt->featMaxV,
+              .coeffN    = perf_meas::kValCnt,
+              .presetA   = frag->multiPresetA,
+              .presetN   = frag->multiPresetN
+            };
+            
+          if( app->ioFlowH.isValid() )
+            apply_rc = io_flow::apply_preset( app->ioFlowH, flow_cross::kNextDestId, mp_sel );
+
+          preset_label = mp_sel.presetN>0 && mp_sel.presetA[0].preset_label!=nullptr ? mp_sel.presetA[0].preset_label : nullptr;
+
+          preset_type_label = "multi";
+            
+        }
         else
         {          
-          const char* preset_label = preset_sel::preset_label(app->psH,preset_idx);
+          // get the preset index to play for this fragment
-
+          if((preset_idx = fragment_play_preset_index(app->psH, frag, seq_idx_n)) == kInvalidIdx )
-          // don't display preset updates unless the score is actually loaded          
+            cwLogInfo("No preset has been assigned to the fragment at end loc. '%i'.",frag->endLoc );
-          printf("Apply preset: '%s' : loc:%i\n", preset_idx==kInvalidIdx ? "<invalid>" : preset_label, loc );
+          else
-
+            preset_label = preset_sel::preset_label(app->psH,preset_idx);
-          _set_status(app,"Apply preset: '%s'.", preset_idx == kInvalidIdx ? "<invalid>" : preset_label);
-
-          if( score_evt != nullptr )
-            printf("Meas:e:%f d:%f t:%f c:%f\n",score_evt->even,score_evt->dyn,score_evt->tempo,score_evt->cost);
           
           if( preset_label != nullptr )
           {
-            io_flow::apply_preset( app->ioFlowH, flow_cross::kNextDestId, preset_label );
+            if( app->ioFlowH.isValid() )
+              apply_rc = io_flow::apply_preset( app->ioFlowH, flow_cross::kNextDestId, preset_label );
 
-            io_flow::set_variable_value( app->ioFlowH, flow_cross::kNextDestId, "wet_in_gain", "gain", flow::kAnyChIdx, (dsp::real_t)frag->igain );
+            preset_type_label = "single";
-            io_flow::set_variable_value( app->ioFlowH, flow_cross::kNextDestId, "wet_out_gain","gain", flow::kAnyChIdx, (dsp::real_t)frag->ogain );
-            io_flow::set_variable_value( app->ioFlowH, flow_cross::kNextDestId, "wd_bal",      "in",   flow::kAnyChIdx, (dsp::real_t)frag->wetDryGain );
-            
-            io_flow::begin_cross_fade( app->ioFlowH, frag->fadeOutMs );
           }
+
+          // don't display preset updates unless the score is actually loaded          
+          printf("Apply %s preset: '%s' : loc:%i status:%i\n", preset_type_label, preset_label==nullptr ? "<invalid>" : preset_label, loc, apply_rc );
+
+          _set_status(app,"Apply %s preset: '%s'.", preset_type_label, preset_label==nullptr ? "<invalid>" : preset_label);
+          
+        }          
+        
+        // apply the fragment defined gain settings
+        if( app->ioFlowH.isValid() )
+        {
+          io_flow::set_variable_value( app->ioFlowH, flow_cross::kNextDestId, "wet_in_gain", "gain", flow::kAnyChIdx, (dsp::real_t)frag->igain );
+          io_flow::set_variable_value( app->ioFlowH, flow_cross::kNextDestId, "wet_out_gain","gain", flow::kAnyChIdx, (dsp::real_t)frag->ogain );
+          io_flow::set_variable_value( app->ioFlowH, flow_cross::kNextDestId, "wd_bal",      "in",   flow::kAnyChIdx, (dsp::real_t)frag->wetDryGain );
+
+          // activate the cross-fade
+          io_flow::begin_cross_fade( app->ioFlowH, frag->fadeOutMs );
         }
       }
 
@@ -970,7 +1025,7 @@ namespace cw
 
     unsigned _get_loc_from_score_follower( app_t* app, double secs, unsigned muid, uint8_t status, uint8_t d0, uint8_t d1 )
     {
-      unsigned loc = INVALID_LOC;
+      unsigned loc = score_parse::kInvalidLocId;
             
       // if this is a MIDI note-on event - then udpate the score follower
       if( midi::isNoteOn(status,d1) && muid != kInvalidIdx )
@@ -1036,7 +1091,7 @@ namespace cw
               snprintf(buf,buf_byte_cnt,"ch:%i status:0x%02x d0:%i d1:%i",ch,status,d0,d1);
             }
             else
-              perf_score::event_to_string( app->scoreH, id, buf, buf_byte_cnt );
+              perf_score::event_to_string( app->perfScoreH, id, buf, buf_byte_cnt );
             printf("%s\n",buf);
           }
 
@@ -1052,7 +1107,7 @@ namespace cw
           
             // TODO: ZERO SHOULD BE A VALID LOC VALUE - MAKE -1 THE INVALID LOC VALUE
             
-            if( loc != INVALID_LOC  && app->trackMidiFl )
+            if( loc != score_parse::kInvalidLocId  && app->trackMidiFl )
             {
               if( preset_sel::track_loc( app->psH, loc, f ) )  
               {
@@ -1070,15 +1125,15 @@ namespace cw
       }
     }
 
-    rc_t  _on_live_midi( app_t* app, const io::msg_t& msg )
+    rc_t  _on_live_midi_event( app_t* app, const io::msg_t& msg )
     {
       rc_t rc = kOkRC;
 
       if( msg.u.midi != nullptr )
       {        
-        
+        const io::midi_msg_t& m   = *msg.u.midi;
-        const io::midi_msg_t& m = *msg.u.midi;
         const midi::packet_t* pkt = m.pkt;
+        
         // for each midi msg
         for(unsigned j = 0; j<pkt->msgCnt; ++j)
         {
@@ -1089,8 +1144,8 @@ namespace cw
           }
           else                  // this is a triple
           {
-            midi::msg_t* mm = pkt->msgArray + j;
             time::spec_t timestamp;
+            midi::msg_t* mm = pkt->msgArray + j;
             unsigned     id = app->enableRecordFl ? last_store_index(app->mrpH) : kInvalidId;
             unsigned     loc = app->beg_play_loc;
             
@@ -1098,8 +1153,8 @@ namespace cw
             
             if( midi::isChStatus(mm->status) )
             {
-              if(midi_record_play::send_midi_msg( app->mrpH, midi_record_play::kSampler_MRP_DevIdx, mm->status & 0x0f, mm->status & 0xf0, mm->d0, mm->d1 ) == kOkRC )                
+              if(midi_record_play::send_midi_msg( app->mrpH, midi_record_play::kSampler_MRP_DevIdx, mm->ch, mm->status, mm->d0, mm->d1 ) == kOkRC )                
-                _midi_play_callback( app, midi_record_play::kMidiEventActionId, id, timestamp, loc, nullptr, mm->status & 0x0f, mm->status & 0xf0, mm->d0, mm->d1 );
+                _midi_play_callback( app, midi_record_play::kMidiEventActionId, id, timestamp, loc, nullptr, mm->ch, mm->status, mm->d0, mm->d1 );
             }
 
           }
@@ -1138,16 +1193,16 @@ namespace cw
 
       frameIdxRef = kInvalidIdx;
       
-      if( app->in_audio_begin_loc != INVALID_LOC )
+      if( app->in_audio_begin_loc != score_parse::kInvalidLocId )
       {
-        if((e0 = loc_to_event(app->scoreH,app->in_audio_begin_loc)) == nullptr )
+        if((e0 = loc_to_event(app->perfScoreH,app->in_audio_begin_loc)) == nullptr )
         {
           rc = cwLogError(kInvalidArgRC,"The score event associated with the 'in_audio_beg_loc' loc:%i could not be found.",loc);
           goto errLabel;
         }
       }
       
-      if((e1 = loc_to_event(app->scoreH,loc)) == nullptr )
+      if((e1 = loc_to_event(app->perfScoreH,loc)) == nullptr )
       {
         rc = cwLogError(kInvalidArgRC,"The score event associated with the begin play loc:%i could not be found.",loc);
         goto errLabel;
@@ -1176,7 +1231,7 @@ namespace cw
 
     bool _is_performance_loaded( app_t* app )
     {
-      return app->scoreH.isValid() and event_count(app->scoreH) > 0;
+      return app->perfScoreH.isValid() and event_count(app->perfScoreH) > 0;
     }
 
     rc_t _do_sf_reset( app_t* app, unsigned loc )
@@ -1304,9 +1359,6 @@ namespace cw
             evt_cnt = midi_record_play::event_count(app->mrpH);
           
         io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kCurMidiEvtCntId), evt_cnt  );
-      
-        
-
       }
       
     errLabel:
@@ -1416,7 +1468,7 @@ namespace cw
       //io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kCurMidiEvtCntId),   midi_record_play::event_index(app->mrpH) );
       //io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kTotalMidiEvtCntId), midi_record_play::event_count(app->mrpH) );
       
-      io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kTotalMidiEvtCntId), app->maxLoc-app->minLoc );
+      io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kTotalMidiEvtCntId), app->maxPerfLoc-app->minPerfLoc );
     }
 
     // Update the UI with the value from the the fragment data record.
@@ -1585,7 +1637,10 @@ namespace cw
       //  _clear_status(app);
       //else
       if( !enableFl )
+      {
         _set_status(app,"Invalid fragment play range. beg:%i end:%i",begPlayLoc,endPlayLoc);
+        cwLogError(kInvalidArgRC,"Invalid fragment play range. beg:%i end:%i",begPlayLoc,endPlayLoc);
+      }
 
     }
 
@@ -1776,9 +1831,9 @@ namespace cw
       
       // Set the fragment beg/end play range
       get_value( app->psH, fragId, preset_sel::kBegPlayLocVarId, kInvalidId, fragBegLoc );
-      uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, fragPanelUuId, kFragBegPlayLocId, fragChanId), app->minLoc, app->maxLoc, 1, 0, fragBegLoc );
-      uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, fragPanelUuId, kFragEndPlayLocId, fragChanId), app->minLoc, app->maxLoc, 1, 0, endLoc );
 
+      uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, fragPanelUuId, kFragBegPlayLocId, fragChanId), app->minScoreLoc, app->maxScoreLoc, 1, 0, fragBegLoc );
+      uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, fragPanelUuId, kFragEndPlayLocId, fragChanId), app->minScoreLoc, app->maxScoreLoc, 1, 0, endLoc );
 
       // Attach blobs to the UI to allow convenient access back to the prese_sel data record
       _frag_set_ui_blob(app, io::uiFindElementUuId(app->ioH, fragPanelUuId, kFragInGainId,     fragChanId), fragId, preset_sel::kInGainVarId,        kInvalidId );
@@ -1831,6 +1886,8 @@ namespace cw
         goto errLabel;
       }
 
+      get_loc_range(app->psH,app->minScoreLoc,app->maxScoreLoc);
+
       // Settting psNextFrag to a non-null value causes the
       app->psNextFrag = preset_sel::get_fragment_base(app->psH);
 
@@ -1872,6 +1929,8 @@ namespace cw
         if( app->psNextFrag == nullptr )
         {
 
+          io::uiSendMsg( app->ioH, "{ \"op\":\"attach\" }" );
+          
           // the fragments are loaded enable the 'load' and 'alt' menu
           io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kPerfSelId ),   true );
           io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kAltSelId ),   true );
@@ -1890,6 +1949,7 @@ namespace cw
       return rc;
     }
 
+    /*
     rc_t _restore_fragment_data( app_t* app )
     {
       rc_t                      rc = kOkRC;
@@ -1920,6 +1980,8 @@ namespace cw
         goto errLabel;
       }
 
+      get_loc_range(app->psH,app->minScoreLoc,app->maxScoreLoc);
+  
       //preset_sel::report( app->psH );
 
       f = preset_sel::get_fragment_base(app->psH);
@@ -1944,7 +2006,7 @@ namespace cw
       
       return rc;
     }
-    
+    */
     rc_t _on_ui_save( app_t* app )
     {
       rc_t  rc  = kOkRC;
@@ -1994,19 +2056,19 @@ namespace cw
       midiEventCntRef = 0;
       
       // get the count of MIDI events
-      if((e = perf_score::base_event( app->scoreH )) != nullptr )
+      if((e = perf_score::base_event( app->perfScoreH )) != nullptr )
         for(; e != nullptr; e=e->link)
           if( e->status != 0 )
             midiEventN  += 1;
 
       // copy the MIDI events
-      if((e = perf_score::base_event( app->scoreH )) != nullptr )
+      if((e = perf_score::base_event( app->perfScoreH )) != nullptr )
       {
         // allocate the locMap[]
         app->locMap  = mem::resizeZ<loc_map_t>( app->locMap, midiEventN ); 
         app->locMapN = midiEventN;
-        app->minLoc  = INVALID_LOC;
+        app->minPerfLoc  = score_parse::kInvalidLocId;
-        app->maxLoc  = INVALID_LOC;
+        app->maxPerfLoc  = score_parse::kInvalidLocId;
                 
         // allocate the the player msg array
         m = mem::allocZ<midi_record_play::midi_msg_t>( midiEventN );
@@ -2027,17 +2089,17 @@ namespace cw
             app->locMap[i].loc = e->loc;
             app->locMap[i].timestamp = m[i].timestamp;
 
-            if( e->loc != INVALID_LOC )
+            if( e->loc != score_parse::kInvalidLocId )
             {
-              if( app->minLoc == INVALID_LOC )
+              if( app->minPerfLoc == score_parse::kInvalidLocId )
-                app->minLoc = e->loc;
+                app->minPerfLoc = e->loc;
               else            
-                app->minLoc = std::min(app->minLoc,e->loc);
+                app->minPerfLoc = std::min(app->minPerfLoc,e->loc);
               
-              if( app->maxLoc == INVALID_LOC )
+              if( app->maxPerfLoc == score_parse::kInvalidLocId )
-                app->maxLoc = e->loc;
+                app->maxPerfLoc = e->loc;
               else            
-                app->maxLoc = std::max(app->maxLoc,e->loc);
+                app->maxPerfLoc = std::max(app->maxPerfLoc,e->loc);
             }
             
             ++i;
@@ -2054,7 +2116,7 @@ namespace cw
 
         midiEventCntRef = midiEventN;
 
-        cwLogInfo("%i MIDI events loaded from score. Loc Min:%i Max:%i", midiEventN , app->minLoc, app->maxLoc);
+        cwLogInfo("%i MIDI events loaded from score. Loc Min:%i Max:%i", midiEventN , app->minPerfLoc, app->maxPerfLoc);
       }
       
     errLabel:
@@ -2114,7 +2176,7 @@ namespace cw
       return rc;
     }
 
-    rc_t _do_load( app_t* app, const char* perf_fn, const vel_tbl_t* vtA=nullptr, unsigned vtN=0 )
+    rc_t _do_load_perf_score( app_t* app, const char* perf_fn, const vel_tbl_t* vtA=nullptr, unsigned vtN=0 )
     {
       rc_t     rc         = kOkRC;
       unsigned midiEventN = 0;
@@ -2122,8 +2184,8 @@ namespace cw
       cwLogInfo("Loading");
       _set_status(app,"Loading...");
 
-      // load the performance or score
+      // load the performance
-      if((rc= perf_score::create( app->scoreH, perf_fn )) != kOkRC )
+      if((rc= perf_score::create( app->perfScoreH, perf_fn )) != kOkRC )
       {
         cwLogError(rc,"Score create failed on '%s'.",perf_fn);
         goto errLabel;          
@@ -2153,12 +2215,12 @@ namespace cw
       io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kInsertLocId ), true );
       
       // set the UI begin/end play to the locations of the newly loaded performance
-      app->end_play_loc = app->maxLoc;
+      app->end_play_loc = app->maxPerfLoc;
-      app->beg_play_loc = app->minLoc;
+      app->beg_play_loc = app->minPerfLoc;
 
       // Update the master range of the play beg/end number widgets
-      io::uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, kBegPlayLocNumbId), app->minLoc, app->maxLoc, 1, 0, app->beg_play_loc );
+      io::uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, kBegPlayLocNumbId), app->minPerfLoc, app->maxPerfLoc, 1, 0, app->beg_play_loc );
-      io::uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, kEndPlayLocNumbId), app->minLoc, app->maxLoc, 1, 0, app->end_play_loc );
+      io::uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, kEndPlayLocNumbId), app->minPerfLoc, app->maxPerfLoc, 1, 0, app->end_play_loc );
 
       io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kBegPlayLocNumbId ), true );
       io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kEndPlayLocNumbId ), true );
@@ -2170,8 +2232,8 @@ namespace cw
       io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kSfResetBtnId ),   true );
       io::uiSetEnable( app->ioH, io::uiFindElementUuId( app->ioH, kSfResetLocNumbId ),   true );
 
-      io::uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, kSfResetLocNumbId), app->minLoc, app->maxLoc, 1, 0, app->beg_play_loc );
+      io::uiSetNumbRange( app->ioH, io::uiFindElementUuId(app->ioH, kSfResetLocNumbId), app->minPerfLoc, app->maxPerfLoc, 1, 0, app->beg_play_loc );
-      io::uiSendValue( app->ioH, io::uiFindElementUuId(app->ioH, kSfResetLocNumbId), app->minLoc);
+      io::uiSendValue( app->ioH, io::uiFindElementUuId(app->ioH, kSfResetLocNumbId), app->minPerfLoc);
       
       cwLogInfo("'%s' loaded.",perf_fn);
 
@@ -2216,10 +2278,10 @@ namespace cw
         goto errLabel;
       }
 
-      printf("Loading:%s %p %i\n",prp->fname,prp->vel_tblA, prp->vel_tblN);
+      printf("Loading:%s\n",prp->fname );
       
       // load the requested performance
-      if((rc = _do_load(app,prp->fname,prp->vel_tblA, prp->vel_tblN)) != kOkRC )
+      if((rc = _do_load_perf_score(app,prp->fname,prp->vel_tblA, prp->vel_tblN)) != kOkRC )
       {
         rc = cwLogError(kSyntaxErrorRC,"The performance load failed.");
         goto errLabel;
@@ -2604,6 +2666,7 @@ namespace cw
       return rc;
     }
 
+    /*
     rc_t _on_midi_load_btn_0(app_t* app)
     {      
       rc_t                 rc    = kOkRC;
@@ -2612,13 +2675,13 @@ namespace cw
       object_t*            cfg   = nullptr;
       unsigned             sfResetLoc;
       
-      if((rc = perf_score::create_from_midi_csv( app->scoreH, app->midiLoadFname )) != kOkRC )
+      if((rc = perf_score::create_from_midi_csv( app->perfScoreH, app->midiLoadFname )) != kOkRC )
       {
         rc = cwLogError(rc,"Piano score performance load failed on '%s'.",cwStringNullGuard(app->midiLoadFname));
         goto errLabel;
       }
 
-      if((rc = _do_load(app,nullptr)) != kOkRC )
+      if((rc = _do_load_perf_score(app,nullptr)) != kOkRC )
       {
         rc = cwLogError(rc,"Performance load failed on '%s'.",cwStringNullGuard(app->midiLoadFname));
         goto errLabel;
@@ -2659,12 +2722,13 @@ namespace cw
       
       return rc;
     }
+    */
 
     rc_t _on_midi_load_btn(app_t* app)
     {      
       rc_t                 rc    = kOkRC;
 
-      if((rc = _do_load(app,app->midiLoadFname)) != kOkRC )
+      if((rc = _do_load_perf_score(app,app->midiLoadFname)) != kOkRC )
       {
         rc = cwLogError(rc,"Piano score performance load failed on '%s'.",cwStringNullGuard(app->midiLoadFname));
         goto errLabel;        
@@ -2675,7 +2739,6 @@ namespace cw
       return rc;
     }
     
-    
     rc_t _on_midi_load_fname(app_t* app, const char* fname)
     {
       rc_t rc = kOkRC;
@@ -2725,9 +2788,11 @@ namespace cw
       if((rc = preset_sel::set_value( app->psH, kInvalidId, varId, kInvalidId, value )) != kOkRC )
         rc = cwLogError(rc,"Master value set failed on varId:%i %s.%s.",varId,cwStringNullGuard(inst_label),cwStringNullGuard(var_label));
       else
-        if((rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, inst_label,  var_label,    flow::kAnyChIdx, (dsp::real_t)value )) != kOkRC )
+      {
-          rc = cwLogError(rc,"Master value send failed on %s.%s.",cwStringNullGuard(inst_label),cwStringNullGuard(var_label));
+        if( app->ioFlowH.isValid() )
-      
+          if((rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, inst_label,  var_label,    flow::kAnyChIdx, (dsp::real_t)value )) != kOkRC )
+            rc = cwLogError(rc,"Master value send failed on %s.%s.",cwStringNullGuard(inst_label),cwStringNullGuard(var_label));
+      }
       return rc;
     }
 
@@ -2762,13 +2827,15 @@ namespace cw
         case kPvWndSmpCntId:
           var_label        = "wndSmpN";
           app->pvWndSmpCnt = m.value->u.u;
-          rc               = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "pva",  var_label,    flow::kAnyChIdx, m.value->u.u );
+          if( app->ioFlowH.isValid() )
+            rc  = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "pva",  var_label,    flow::kAnyChIdx, m.value->u.u );
           break;
 	  
         case kSdBypassId:
           var_label       = "bypass";
           app->sdBypassFl = m.value->u.b;
-          rc              = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "sd",  var_label,    flow::kAnyChIdx, m.value->u.b );
+          if( app->ioFlowH.isValid() )
+            rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "sd",  var_label,    flow::kAnyChIdx, m.value->u.b );
           break;
 	  
         case kSdInGainId:
@@ -2809,14 +2876,15 @@ namespace cw
         case kCmpBypassId:
           var_label = "cmp-bypass";
           app->cmpBypassFl = m.value->u.b;
-          rc        = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "cmp",  "bypass",    flow::kAnyChIdx, m.value->u.b );
+          if( app->ioFlowH.isValid() )
+            rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "cmp",  "bypass",    flow::kAnyChIdx, m.value->u.b );
           break;
 	  
         default:
           assert(0);
       }
 
-      if( m.value->tid == ui::kDoubleTId )
+      if( m.value->tid == ui::kDoubleTId && app->ioFlowH.isValid() )
         rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "sd",  var_label,    flow::kAnyChIdx, (dsp::real_t)m.value->u.d );
 
       if(rc != kOkRC )
@@ -2825,7 +2893,7 @@ namespace cw
       return rc;
     }
 
-    rc_t _on_live_midi_fl( app_t* app, bool useLiveMidiFl )
+    rc_t _on_live_midi_checkbox( app_t* app, bool useLiveMidiFl )
     {
       rc_t rc = kOkRC;
       dsp::real_t value;
@@ -2847,8 +2915,9 @@ namespace cw
         io::uiSendValue( app->ioH, io::uiFindElementUuId( app->ioH, kSyncDelayMsId ), app->dfltSyncDelayMs );        
       }
 
-      if((rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "sync_delay",  "delayMs",    flow::kAnyChIdx, (dsp::real_t)value )) != kOkRC )
+      if( app->ioFlowH.isValid() )
-        rc = cwLogError(rc,"Error setting sync delay 'flow' value.");
+        if((rc = io_flow::set_variable_value( app->ioFlowH, flow_cross::kAllDestId, "sync_delay",  "delayMs",    flow::kAnyChIdx, (dsp::real_t)value )) != kOkRC )
+          rc = cwLogError(rc,"Error setting sync delay 'flow' value.");
       
       
       app->useLiveMidiFl = useLiveMidiFl;
@@ -2887,7 +2956,7 @@ namespace cw
       if((rc = _fragment_load_data(app)) != kOkRC )
         rc = cwLogError(rc,"Preset data restore failed.");
 
-      _on_live_midi_fl(app,app->useLiveMidiFl);
+      _on_live_midi_checkbox(app,app->useLiveMidiFl);
 
       return rc;
     }
@@ -2907,7 +2976,8 @@ namespace cw
           break;
 
         case kNetPrintBtnId:
-          io_flow::print_network(app->ioFlowH,flow_cross::kCurDestId);
+          if( app->ioFlowH.isValid() )
+            io_flow::print_network(app->ioFlowH,flow_cross::kCurDestId);
           break;
             
         case kReportBtnId:
@@ -2926,6 +2996,11 @@ namespace cw
           preset_sel::report_presets(app->psH);
           break;
 
+        case kLatencyBtnId:
+          latency_measure_report(app->ioH);
+          latency_measure_setup(app->ioH);
+          break;
+
         case kSaveBtnId:
           _on_ui_save(app);
           break;
@@ -2938,6 +3013,18 @@ namespace cw
           _on_alt_select(app,m.value->u.u);
           break;
 
+        case kPriPresetProbCheckId:
+          app->multiPresetFlags = cwEnaFlag(app->multiPresetFlags,flow::kPriPresetProbFl,m.value->u.b);
+          break;
+          
+        case kSecPresetProbCheckId:
+          app->multiPresetFlags = cwEnaFlag(app->multiPresetFlags,flow::kSecPresetProbFl,m.value->u.b);
+          break;
+
+        case kPresetInterpCheckId:
+          app->multiPresetFlags = cwEnaFlag(app->multiPresetFlags,flow::kInterpPresetFl,m.value->u.b);
+          break;
+        
         case kMidiThruCheckId:
           cwLogInfo("MIDI thru:%i",m.value->u.b);        
           _set_midi_thru_state(app, m.value->u.b);
@@ -2952,8 +3039,7 @@ namespace cw
           break;
 
         case kLiveCheckId:
-          //app->useLiveMidiFl = m.value->u.b;
+          _on_live_midi_checkbox(app, m.value->u.b );
-          _on_live_midi_fl(app, m.value->u.b );
           break;
           
         case kTrackMidiCheckId:
@@ -3175,6 +3261,18 @@ namespace cw
           _on_echo_midi_enable( app, m.uuId, midi_record_play::kSampler_MRP_DevIdx );
           break;
 
+        case kPriPresetProbCheckId:
+          io::uiSendValue( app->ioH, m.uuId, preset_cfg_flags(app->ioFlowH) & flow::kPriPresetProbFl );
+          break;
+
+        case kSecPresetProbCheckId:
+          io::uiSendValue( app->ioH, m.uuId, preset_cfg_flags(app->ioFlowH) & flow::kSecPresetProbFl );
+          break;
+          
+        case kPresetInterpCheckId:
+          io::uiSendValue( app->ioH, m.uuId, preset_cfg_flags(app->ioFlowH) & flow::kInterpPresetFl );
+          break;
+          
         case kWetInGainId:
           _on_echo_master_value( app, preset_sel::kMasterWetInGainVarId, m.uuId );
           break;
@@ -3364,7 +3462,7 @@ namespace cw
           
         case io::kMidiTId:
           if( app->useLiveMidiFl && app->mrpH.isValid() )
-            _on_live_midi( app, *m );
+            _on_live_midi_event( app, *m );
           break;
           
         case io::kAudioTId:        
@@ -3520,11 +3618,21 @@ cw::rc_t cw::preset_sel_app::main( const object_t* cfg, int argc, const char* ar
   }
   
   // create the IO Flow controller
-  if(app.flow_cfg==nullptr || app.flow_proc_dict==nullptr || (rc = io_flow::create(app.ioFlowH,app.ioH,sysSampleRate,app.crossFadeCnt,*app.flow_proc_dict,*app.flow_cfg)) != kOkRC )
+  if( !audioIsEnabled(app.ioH) )
   {
-    rc = cwLogError(rc,"The IO Flow controller create failed.");
+    cwLogInfo("Audio disabled.");
-    goto errLabel;
   }
+  else
+  {
+    if(app.flow_cfg==nullptr || app.flow_proc_dict==nullptr || (rc = io_flow::create(app.ioFlowH,app.ioH,sysSampleRate,app.crossFadeCnt,*app.flow_proc_dict,*app.flow_cfg)) != kOkRC )
+    {
+      rc = cwLogError(rc,"The IO Flow controller create failed.");
+      goto errLabel;
+    }
+    app.multiPresetFlags = preset_cfg_flags(app.ioFlowH);
+  }
+
+  printf("ioFlow is %s valid.\n",app.ioFlowH.isValid() ? "" : "not");
   
   // start the IO framework instance
   if((rc = io::start(app.ioH)) != kOkRC )
@@ -3533,11 +3641,24 @@ cw::rc_t cw::preset_sel_app::main( const object_t* cfg, int argc, const char* ar
     goto errLabel;    
   }
 
+  //io::uiReport(app.ioH);
+
+  
   // execute the io framework
   while( !io::isShuttingDown(app.ioH))
   {
+    time::spec_t t0;
+    time::get(t0);
+
+    // This call may block on the websocket handle.
     io::exec(app.ioH);
-    sleepMs( app.psNextFrag != nullptr? 1 : 50 );
+    
+    unsigned dMs = time::elapsedMs(t0);
+    if( dMs < 50 && app.psNextFrag == nullptr )
+    {      
+      sleepMs( 50-dMs );      
+    }
+
   }
 
   // stop the io framework

cwMdns.cpp

@@ -1317,7 +1317,7 @@ cw::rc_t cw::net::mdns::test()
   }
 
     // create the TCP listening thread
-  if((rc = thread::create( app.tcpThreadH, tcpReceiveCallback, &app )) != kOkRC )
+  if((rc = thread::create( app.tcpThreadH, tcpReceiveCallback, &app, "mdns" )) != kOkRC )
     goto errLabel;
 
   

cwMem.cpp

@@ -12,7 +12,7 @@ void* cw::mem::_alloc( void* p0, unsigned n, unsigned flags )
 
     n += 2*sizeof(unsigned); // add space for the size of the block
     
-    // if there is no existing block
+    // if there is an existing block
     if( p0 != nullptr )
     {
       // get a pointer to the base of the exsting block

cwMidi.h

@@ -88,26 +88,32 @@ namespace cw
     template< typename T> bool isStatus( T s )   { return  (kNoteOffMdId <= removeCh(s) /*&& ((unsigned)(s)) <= kSysRtResetMdId*/ ); }
     template< typename T> bool isChStatus( T s ) { return  (kNoteOffMdId <= removeCh(s) && removeCh(s) <  kSysExMdId); }
 
+    template< typename T> bool isCtlStatus( T s ) { return  removeCh(s) == kCtlMdId; }
+    
     template< typename T> bool isNoteOnStatus( T s )        { return ( kNoteOnMdId <= removeCh(s) && removeCh(s) <= (kNoteOnMdId + kMidiChCnt) ); }
     template< typename T> bool isNoteOn( T s, T d1 )  { return ( isNoteOnStatus(removeCh(s)) && (d1)!=0) ; }
     template< typename T> bool isNoteOff( T s, T d1 ) { return ( (isNoteOnStatus(removeCh(s)) && (d1)==0) || (kNoteOffMdId <= removeCh(s) && removeCh(s) <= (kNoteOffMdId + kMidiChCnt)) ); }
     template< typename T> bool isCtl( T s )           { return ( kCtlMdId <= removeCh(s) && removeCh(s) <= (kCtlMdId + kMidiChCnt) ); }
 
-    template< typename T> bool isSustainPedal(     T s, T d0 )      { return ( kCtlMdId <= removeCh(s) && removeCh(s) <= (kCtlMdId + kMidiChCnt) && (d0)== kSustainCtlMdId ); }
+    template< typename T> bool isPedal(     T s, T d0 )        { return isCtlStatus(s) && kSustainCtlMdId <= (d0) && (d0) <= kLegatoCtlMdId; }
-    template< typename T> bool isSustainPedalDown( T s, T d0, T d1) { return ( isSustainPedal(s,d0) && (d1)>=64 ); }
+    template< typename T> bool isPedalDown( T d1 )             { return ( (d1)>=64 ); }
-    template< typename T> bool isSustainPedalUp(   T s, T d0, T d1) { return ( isSustainPedal(s,d0) && (d1)<64 ); }
+    template< typename T> bool isPedalUp(   T d1 )             { return ( !isPedalDown(d1)  ); }
+    template< typename T> bool isPedalDown( T s, T d0, T d1 )  { return ( isPedal(s,d0) && isPedalDown(d1) ); }
+    template< typename T> bool isPedalUp(   T s, T d0, T d1 )  { return ( isPedal(s,d0) && isPedalUp(d1)  ); }
     
-    template< typename T> bool isSostenutoPedal(     T s, T d0 )      { return ( kCtlMdId <= removeCh(s) && removeCh(s) <= (kCtlMdId + kMidiChCnt) && (d0)== kSostenutoCtlMdId ); }
+    template< typename T> bool isSustainPedal(     T s, T d0 )      { return isCtlStatus(s) && (d0)==kSustainCtlMdId; }
-    template< typename T> bool isSostenutoPedalDown( T s, T d0, T d1) { return ( isSostenutoPedal(s,d0) && (d1)>=64 ); }
+    template< typename T> bool isSustainPedalDown( T s, T d0, T d1) { return ( isSustainPedal(s,d0) && isPedalDown(d1) ); }
-    template< typename T> bool isSostenutoPedalUp(   T s, T d0, T d1) { return ( isSostenutoPedal(s,d0) && (d1)<64 ); }
+    template< typename T> bool isSustainPedalUp(   T s, T d0, T d1) { return ( isSustainPedal(s,d0) && isPedalUp(d1) ); }
+  
+    template< typename T> bool isSostenutoPedal(     T s, T d0 )      { return isCtlStatus(s) && (d0)==kSostenutoCtlMdId; }
+    template< typename T> bool isSostenutoPedalDown( T s, T d0, T d1) { return ( isSostenutoPedal(s,d0) && isPedalDown(d1) ); }
+    template< typename T> bool isSostenutoPedalUp(   T s, T d0, T d1) { return ( isSostenutoPedal(s,d0) && isPedalUp(d1) ); }
+
+    template< typename T> bool isSoftPedal(     T s, T d0 )      { return isCtlStatus(s) && (d0)==kSoftPedalCtlMdId; }
+    template< typename T> bool isSoftPedalDown( T s, T d0, T d1) { return ( isSoftPedal(s,d0) && isPedalDown(d1)); }
+    template< typename T> bool isSoftPedalUp(   T s, T d0, T d1) { return ( isSoftPedal(s,d0) && isPedalUp(d1)); }
 
-    template< typename T> bool isSoftPedal(     T s, T d0 )      { return ( kCtlMdId <= removeCh(s) && removeCh(s) <= (kCtlMdId + kMidiChCnt) && (d0)== kSoftPedalCtlMdId ); }
-    template< typename T> bool isSoftPedalDown( T s, T d0, T d1) { return ( isSoftPedal(s,d0) && (d1)>=64 ); }
-    template< typename T> bool isSoftPedalUp(   T s, T d0, T d1) { return ( isSoftPedal(s,d0) && (d1)<64 ); }
     
-    template< typename T> bool isPedal(     T s, T d0 )        { return ( kCtlMdId <= removeCh(s) && removeCh(s) <= (kCtlMdId + kMidiChCnt) && (d0)>=kSustainCtlMdId && (d0)<=kLegatoCtlMdId ); }
-    template< typename T> bool isPedalDown( T s, T d0, T d1 )  { return ( isPedal(s,d0) && (d1)>=64 ); }
-    template< typename T> bool isPedalUp(   T s, T d0, T d1 )  { return ( isPedal(s,d0) && (d1)<64  ); }
 
     typedef uint8_t byte_t;
     

cwMidiAlsa.h

@@ -0,0 +1,44 @@
+namespace cw
+{
+  namespace midi
+  {
+    namespace device
+    {
+      namespace alsa
+      {
+        
+        typedef handle< struct alsa_device_str> handle_t;
+        
+        rc_t create( handle_t& h, cbFunc_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, const char* appNameStr );
+        rc_t destroy( handle_t& h);
+        bool isInitialized( handle_t h );
+
+        struct pollfd* pollFdArray( handle_t h, unsigned& arrayCntRef );
+        rc_t           handleInputMsg( handle_t h );
+
+        unsigned    count( handle_t h );
+        const char* name(        handle_t h, unsigned devIdx );
+        unsigned    nameToIndex(handle_t h, const char* deviceName);
+        unsigned    portCount(  handle_t h, unsigned devIdx, unsigned flags );
+        const char* portName(   handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx );
+        unsigned    portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portName );
+        rc_t        portEnable(      handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx, bool enableFl );
+        
+        rc_t        send(       handle_t h, unsigned devIdx, unsigned portIdx, uint8_t st, uint8_t d0, uint8_t d1 );
+        rc_t        sendData(   handle_t h, unsigned devIdx, unsigned portIdx, const uint8_t* dataPtr, unsigned byteCnt );
+        
+
+        // Latency measurment:
+        // Record the time of the next incoming note-on msg
+        // and the time of the next outgoing note-on msg
+        
+        // Reset the latency measurement process.
+        void latency_measure_reset(handle_t h);      
+        latency_meas_result_t latency_measure_result(handle_t h);
+      
+        void report( handle_t h, textBuf::handle_t tbH);
+        
+      }
+    }
+  }
+}

cwMidiDecls.h

@@ -8,21 +8,25 @@ namespace cw
     typedef struct  msg_str
     {
       time::spec_t timeStamp;
-      uint8_t status;  // midi status byte
+      unsigned uid;     // application specified id
-      uint8_t d0;      // midi data byte 0
+      uint8_t  ch;      // midi channel
-      uint8_t d1;      // midi data byte 1
+      uint8_t  status;  // midi status byte (channel has been removed)
-      uint8_t pad;
+      uint8_t  d0;      // midi data byte 0
+      uint8_t  d1;      // midi data byte 1
     } msg_t;
 
     typedef struct packet_str
     {
-      void*         cbDataPtr; // Application supplied reference value from mdParserCreate()
+      void*         cbArg; // Application supplied reference value
       unsigned      devIdx;    // The device the msg originated from
       unsigned      portIdx;   // The port index on the source device
       msg_t*        msgArray;  // Pointer to an array of 'msgCnt' mdMsg records or NULL if sysExMsg is non-NULL
       uint8_t*      sysExMsg;  // Pointer to a sys-ex msg or NULL if msgArray is non-NULL (see note below)
       unsigned      msgCnt;    // Count of mdMsg records or sys-ex bytes
     } packet_t;
+
+    typedef void (*cbFunc_t)( const packet_t* pktArray, unsigned pktCnt );
+
   }
 }
 #endif

cwMidiDevice.cpp

@@ -0,0 +1,666 @@
+#include "cwCommon.h"
+#include "cwLog.h"
+#include "cwCommonImpl.h"
+#include "cwMem.h"
+#include "cwTime.h"
+#include "cwObject.h"
+#include "cwText.h"
+#include "cwTextBuf.h"
+#include "cwThread.h"
+
+#include "cwMidi.h"
+#include "cwMidiDecls.h"
+#include "cwMidiFile.h"
+#include "cwMidiDevice.h"
+#include <poll.h>
+
+#include "cwMidiAlsa.h"
+#include "cwMidiFileDev.h"
+
+
+namespace cw
+{
+  namespace midi
+  {
+    namespace device
+    {
+      typedef enum {
+        kStoppedStateId,
+        kPausedStateId,
+        kPlayingStateId
+      } transportStateId_t;
+      
+      typedef struct device_str
+      {
+        cbFunc_t cbFunc;
+        void*    cbArg;
+
+        alsa::handle_t alsaDevH;
+        unsigned       alsaPollfdN;
+        struct pollfd* alsaPollfdA;
+        unsigned       alsa_dev_cnt;
+
+        file_dev::handle_t fileDevH;
+        unsigned file_dev_cnt;
+        
+        unsigned total_dev_cnt;
+
+        
+        unsigned thread_timeout_microsecs;
+        thread::handle_t threadH;
+
+        transportStateId_t fileDevStateId;
+        
+        unsigned long long offset_micros;
+        unsigned long long last_posn_micros;
+        time::spec_t       start_time;
+        
+      } device_t;
+
+      device_t* _handleToPtr( handle_t h )
+      { return handleToPtr<handle_t,device_t>(h); }
+
+      rc_t _validate_dev_index( device_t* p, unsigned devIdx )
+      {
+        rc_t rc = kOkRC;
+        if( devIdx >= p->total_dev_cnt )
+          rc = cwLogError(kInvalidArgRC,"Invalid MIDI device index (%i >= %i).",devIdx,p->total_dev_cnt);
+          
+        return rc;
+      }
+      
+      unsigned _devIdxToAlsaDevIdx( device_t* p, unsigned devIdx )
+      {
+        return devIdx >= p->alsa_dev_cnt ? kInvalidIdx : devIdx;
+      }
+
+      unsigned _devIdxToFileDevIdx( device_t* p, unsigned devIdx )
+      {
+        return devIdx==kInvalidIdx || devIdx < p->alsa_dev_cnt ? kInvalidIdx : devIdx - p->alsa_dev_cnt;
+      }
+
+      unsigned _alsaDevIdxToDevIdx( device_t* p, unsigned alsaDevIdx )
+      { return alsaDevIdx; }
+
+      unsigned _fileDevIdxToDevIdx( device_t* p, unsigned fileDevIdx )
+      { return fileDevIdx == kInvalidIdx ? kInvalidIdx : p->alsa_dev_cnt + fileDevIdx; }
+
+      bool _isAlsaDevIdx( device_t* p, unsigned devIdx )
+      { return devIdx==kInvalidIdx ? false : devIdx < p->alsa_dev_cnt; }
+
+      bool _isFileDevIdx( device_t* p, unsigned devIdx )
+      { return devIdx==kInvalidIdx ? false : (p->alsa_dev_cnt <= devIdx && devIdx < p->total_dev_cnt); }
+      
+
+      rc_t _destroy( device_t* p )
+      {
+        rc_t rc = kOkRC;
+        
+        if((rc = destroy(p->threadH)) != kOkRC )
+        {
+          rc = cwLogError(rc,"MIDI port thread destroy failed.");
+          goto errLabel;
+        }
+        
+        destroy(p->alsaDevH);
+        destroy(p->fileDevH);
+        mem::release(p);
+
+      errLabel:
+        return rc;
+      }
+
+      bool _thread_func( void* arg )
+      {
+        device_t* p = (device_t*)arg;
+
+        unsigned max_sleep_micros = p->thread_timeout_microsecs/2;
+        unsigned sleep_millis = max_sleep_micros/1000;
+        
+        if( p->fileDevStateId == kPlayingStateId )
+        {
+          time::spec_t       cur_time         = time::current_time();
+          unsigned           elapsed_micros   = time::elapsedMicros(p->start_time,cur_time);
+          
+          unsigned long long file_posn_micros = p->offset_micros + elapsed_micros;
+
+          // Send any messages whose time has expired and get the
+          // wait time for the next message.
+          file_dev::exec_result_t r = exec(p->fileDevH,file_posn_micros);
+
+          // If the file dev has no more messages to play then sleep for the maximum time.
+          unsigned file_dev_sleep_micros = r.eof_fl ? max_sleep_micros : r.next_msg_wait_micros;
+
+          // Prevent the wait time from being longer than the thread state change timeout.
+          unsigned sleep_micros = std::min( max_sleep_micros, file_dev_sleep_micros );
+
+          p->last_posn_micros = file_posn_micros + sleep_micros;
+
+          // If the wait time is less than one millisecond then make it one millisecond.
+          // (remember that we allowed the file device to go 3 milliseconds ahead and
+          //  and so it is safe, and better for preventing many very short timeout's,
+          // to wait at least 1 millisecond)
+          sleep_millis = std::max(1U, sleep_micros/1000 );
+        }
+        
+
+        // Block here waiting for ALSA events or timeout when the next file msg should be sent
+        int sysRC = poll( p->alsaPollfdA, p->alsaPollfdN, sleep_millis );
+        
+        if(sysRC == 0 )
+        {
+          // time-out
+        }
+        else
+        {
+          if( sysRC > 0 )
+          {
+            rc_t rc;
+            if((rc = handleInputMsg(p->alsaDevH)) != kOkRC )
+            {
+              cwLogError(rc,"ALSA MIDI dev. input failed");
+            }
+          }
+          else
+          {
+            cwLogSysError(kOpFailRC,sysRC,"MIDI device poll failed.");
+          }
+        }
+        
+        return true;
+      }
+
+      
+    } // device
+  } // midi
+} // cw
+
+
+
+cw::rc_t cw::midi::device::create( handle_t&   hRef,
+                                   cbFunc_t    cbFunc,
+                                   void*       cbArg,
+                                   const char* filePortLabelA[],
+                                   unsigned    max_file_cnt,
+                                   const char* appNameStr,
+                                   const char* fileDevName,
+                                   unsigned    fileDevReadAheadMicros,
+                                   unsigned    parserBufByteCnt )
+{
+  rc_t rc  = kOkRC;
+  rc_t rc1 = kOkRC;  
+  
+  if((rc = destroy(hRef)) != kOkRC )
+    return rc;
+
+  device_t* p = mem::allocZ<device_t>();
+  
+  if((rc = create( p->alsaDevH, cbFunc, cbArg, parserBufByteCnt, appNameStr )) != kOkRC )
+  {
+    rc = cwLogError(rc,"ALSA MIDI device create failed.");
+    goto errLabel;
+  }
+
+  p->alsa_dev_cnt = count(p->alsaDevH);
+
+  if((rc = create( p->fileDevH, cbFunc, cbArg, p->alsa_dev_cnt, filePortLabelA, max_file_cnt, fileDevName, fileDevReadAheadMicros )) != kOkRC )
+  {
+    rc = cwLogError(rc,"MIDI file device create failed.");
+    goto errLabel;
+  }
+
+  p->file_dev_cnt  = count(p->fileDevH);    
+  p->total_dev_cnt = p->alsa_dev_cnt + p->file_dev_cnt;
+  p->alsaPollfdA   = pollFdArray(p->alsaDevH,p->alsaPollfdN);
+  p->fileDevStateId = kStoppedStateId;
+  
+  if((rc = thread::create(p->threadH,
+                          _thread_func,
+                          p,
+                          "midi_dev")) != kOkRC )
+  {
+    rc = cwLogError(rc,"The MIDI file device thread create failed.");
+    goto errLabel;
+  }
+
+  p->thread_timeout_microsecs = stateTimeOutMicros(p->threadH); 
+  
+  hRef.set(p);
+
+  if((rc = unpause(p->threadH)) != kOkRC )
+  {
+    rc = cwLogError(rc,"Initial thread un-pause failed.");
+    goto errLabel;
+  }
+
+  
+errLabel:
+  if(rc != kOkRC )
+     rc1 = _destroy(p);
+
+  if((rc = rcSelect(rc,rc1)) != kOkRC )
+    rc = cwLogError(rc,"MIDI device mgr. create failed.");
+    
+  return rc;
+}
+
+cw::rc_t cw::midi::device::create( handle_t&       h,
+                                   cbFunc_t        cbFunc,
+                                   void*           cbArg,
+                                   const object_t* args )
+{
+  rc_t            rc                     = kOkRC;
+  const char*     appNameStr             = nullptr;
+  const char*     fileDevName            = "file_dev";
+  unsigned        fileDevReadAheadMicros = 3000;
+  unsigned        parseBufByteCnt        = 1024;
+  const object_t* file_ports             = nullptr;
+  const object_t* port                   = nullptr;
+
+  if((rc = args->getv("appNameStr",appNameStr,
+                      "fileDevName",fileDevName,
+                      "fileDevReadAheadMicros",fileDevReadAheadMicros,
+                      "parseBufByteCnt",parseBufByteCnt,
+                      "file_ports",file_ports)) != kOkRC )
+  {
+    rc = cwLogError(rc,"MIDI port parse args. failed.");
+  }
+  else
+  {
+    unsigned fpi            = 0;
+    unsigned filePortArgCnt = file_ports->child_count();
+    const char* labelArray[ filePortArgCnt ];
+    memset(labelArray,0,sizeof(labelArray));
+    
+    for(unsigned i=0; i<filePortArgCnt; ++i)
+    {
+      if((port = file_ports->child_ele(i)) != nullptr )
+      {
+        if((rc = port->getv("label",labelArray[fpi])) != kOkRC )
+        {
+          rc = cwLogError(rc,"MIDI file dev. port arg parse failed.");
+          goto errLabel;
+        }
+        
+        fpi += 1;
+        
+      }
+    }
+    
+    rc = create(h,cbFunc,cbArg,labelArray,fpi,appNameStr,fileDevName,fileDevReadAheadMicros,parseBufByteCnt);
+    
+  }
+  
+  
+errLabel:
+  return rc;  
+}
+
+      
+cw::rc_t cw::midi::device::destroy( handle_t& hRef)
+{
+  rc_t rc = kOkRC;
+  if( !hRef.isValid() )
+    return rc;
+
+  device_t* p = _handleToPtr(hRef);
+
+  if((rc = _destroy(p)) != kOkRC )
+  {
+    rc = cwLogError(rc,"MIDI device mgr. destroy failed.");
+    goto errLabel;
+  }
+
+  hRef.clear();
+errLabel:
+  return rc;
+}
+      
+bool cw::midi::device::isInitialized( handle_t h )
+{ return h.isValid(); }
+
+unsigned    cw::midi::device::count( handle_t h )
+{
+  device_t* p = _handleToPtr(h);
+  return p->total_dev_cnt;
+}
+      
+const char* cw::midi::device::name( handle_t h, unsigned devIdx )
+{
+  device_t*   p          = _handleToPtr(h);
+  const char* ret_name   = nullptr;
+  unsigned    alsaDevIdx = kInvalidIdx;
+  unsigned    fileDevIdx = kInvalidIdx;
+  
+  if((alsaDevIdx = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    ret_name                                       = name(p->alsaDevH,alsaDevIdx);
+  else
+  {
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx)
+      ret_name = name(p->fileDevH,fileDevIdx);
+    else
+      cwLogError(kInvalidArgRC,"%i is an invalid device index.",devIdx);    
+  }
+
+  if( ret_name == nullptr )
+    cwLogError(kOpFailRC,"The name of device index %i could not be found.",devIdx);
+
+  return ret_name;
+}
+      
+unsigned    cw::midi::device::nameToIndex(handle_t h, const char* deviceName)
+{
+  device_t* p = _handleToPtr(h);
+  unsigned  devIdx = kInvalidIdx;
+
+  if((devIdx = nameToIndex(p->alsaDevH,deviceName)) != kInvalidIdx )
+    devIdx   = _alsaDevIdxToDevIdx(p,devIdx);
+  else
+  {
+    if((devIdx = nameToIndex(p->fileDevH,deviceName)) != kInvalidIdx )
+      devIdx   = _fileDevIdxToDevIdx(p,devIdx);
+  }
+
+  if( devIdx == kInvalidIdx )
+    cwLogError(kOpFailRC,"MIDI device name to index failed on '%s'.",cwStringNullGuard(deviceName));
+
+  return devIdx;
+}
+
+unsigned cw::midi::device::portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portNameStr )
+{
+  device_t* p          = _handleToPtr(h);
+  unsigned  alsaDevIdx = kInvalidIdx;
+  unsigned  fileDevIdx = kInvalidIdx;
+  unsigned  portIdx    = kInvalidIdx;
+  
+  if((alsaDevIdx   = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    portIdx = portNameToIndex(p->alsaDevH,alsaDevIdx,flags,portNameStr);
+  else
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx )
+      portIdx = portNameToIndex(p->fileDevH,fileDevIdx,flags,portNameStr);
+  
+  if( portIdx == kInvalidIdx )
+    cwLogError(kInvalidArgRC,"The MIDI port name '%s' could not be found.",cwStringNullGuard(portNameStr));
+               
+  return portIdx;
+}
+
+cw::rc_t cw::midi::device::portEnable( handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx, bool enableFl )
+{
+  rc_t      rc         = kOkRC;
+  device_t* p          = _handleToPtr(h);
+  unsigned  alsaDevIdx = kInvalidIdx;
+  unsigned  fileDevIdx = kInvalidIdx;
+  
+  if((alsaDevIdx   = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    rc = portEnable(p->alsaDevH,alsaDevIdx,flags,portIdx,enableFl);
+  else
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx )
+      rc = portEnable(p->fileDevH,fileDevIdx,flags,portIdx,enableFl);
+  
+  if( rc != kOkRC )
+    rc = cwLogError(rc,"The MIDI port %s failed on dev '%s'  port '%s'.",enableFl ? "enable" : "disable", cwStringNullGuard(name(h,devIdx)), cwStringNullGuard(portName(h,devIdx,flags,portIdx)));
+               
+  return rc;
+  
+}
+      
+unsigned cw::midi::device::portCount(  handle_t h, unsigned devIdx, unsigned flags )
+{
+  device_t* p          = _handleToPtr(h);
+  unsigned  alsaDevIdx = kInvalidIdx;
+  unsigned  fileDevIdx = kInvalidIdx;
+  unsigned  portCnt = 0;
+  
+  if((alsaDevIdx = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    portCnt      = portCount(p->alsaDevH,alsaDevIdx,flags);
+  else
+  {
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx )
+      portCnt      = portCount(p->fileDevH,fileDevIdx,flags);
+    else
+      cwLogError(kInvalidArgRC,"The device index %i is not valid. Port count access failed.",devIdx);
+  }
+  
+  return portCnt;   
+}
+      
+const char* cw::midi::device::portName(   handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx )
+{
+  device_t*   p          = _handleToPtr(h);
+  unsigned    alsaDevIdx = kInvalidIdx;
+  unsigned    fileDevIdx = kInvalidIdx;
+  const char* name       = nullptr;
+
+  if((alsaDevIdx   = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    name           = portName(p->alsaDevH,alsaDevIdx,flags,portIdx);
+  else
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx )
+      name         = portName(p->fileDevH,fileDevIdx,flags,portIdx);
+    else
+      cwLogError(kInvalidArgRC,"The device index %i is not valid.");
+
+  if( name == nullptr )
+    cwLogError(kOpFailRC,"The access to port name on device index %i port index %i failed.",devIdx,portIdx);
+
+  return name;  
+}
+      
+      
+cw::rc_t cw::midi::device::send(       handle_t h, unsigned devIdx, unsigned portIdx, uint8_t st, uint8_t d0, uint8_t d1 )
+{
+  rc_t      rc         = kOkRC;
+  device_t* p          = _handleToPtr(h);
+  unsigned  alsaDevIdx = kInvalidIdx;
+  unsigned  fileDevIdx = kInvalidIdx;
+
+  if((alsaDevIdx = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    rc = send(p->alsaDevH,alsaDevIdx,portIdx,st,d0,d1);
+  else
+  {
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx )
+      rc                                             = send(p->fileDevH,fileDevIdx,portIdx,st,d0,d1);
+    else
+      rc = cwLogError(kInvalidArgRC,"The device %i is not valid.",devIdx);
+  }
+
+  if( rc != kOkRC )
+    rc = cwLogError(rc,"The MIDI msg (0x%x %i %i) transmit failed.",st,d0,d1);
+
+  return rc;
+}
+      
+cw::rc_t cw::midi::device::sendData(   handle_t h, unsigned devIdx, unsigned portIdx, const uint8_t* dataPtr, unsigned byteCnt )
+{
+  rc_t      rc         = kOkRC;
+  device_t* p          = _handleToPtr(h);
+  unsigned  alsaDevIdx = kInvalidIdx;
+  unsigned  fileDevIdx = kInvalidIdx;
+
+  if((alsaDevIdx = _devIdxToAlsaDevIdx(p,devIdx)) != kInvalidIdx )
+    rc = sendData(p->alsaDevH,alsaDevIdx,portIdx,dataPtr,byteCnt);
+  else
+  {
+    if((fileDevIdx = _devIdxToFileDevIdx(p,devIdx)) != kInvalidIdx )
+      rc = sendData(p->fileDevH,fileDevIdx,portIdx,dataPtr,byteCnt);
+    else
+      rc = cwLogError(kInvalidArgRC,"The device %i is not valid.",devIdx);
+  }
+
+  if( rc != kOkRC )
+    rc = cwLogError(rc,"The MIDI msg transmit data failed.");
+
+  return rc;
+}
+
+cw::rc_t cw::midi::device::openMidiFile( handle_t h, unsigned devIdx, unsigned portIdx, const char* fname )
+{
+  rc_t      rc = kOkRC;
+  device_t* p          = _handleToPtr(h);
+
+  if( _devIdxToFileDevIdx(p,devIdx) == kInvalidIdx )
+  {
+    cwLogError(kInvalidArgRC,"The device index %i does not identify a valid file device.",devIdx);
+    goto errLabel;
+  }
+
+  if((rc = open_midi_file( p->fileDevH, portIdx, fname)) != kOkRC )
+    goto errLabel;
+  
+
+errLabel:
+  return rc;
+
+}
+
+cw::rc_t cw::midi::device::seekToMsg( handle_t h, unsigned devIdx, unsigned portIdx, unsigned msgIdx )
+{
+  rc_t      rc = kOkRC;
+  device_t* p          = _handleToPtr(h);
+  
+  if(_devIdxToFileDevIdx(p,devIdx) == kInvalidIdx )
+  {
+    cwLogError(kInvalidArgRC,"The device index %i does not identify a valid file device.",devIdx);
+    goto errLabel;
+  }
+
+  if((rc = seek_to_msg_index( p->fileDevH, portIdx, msgIdx)) != kOkRC )
+    goto errLabel;
+  
+  
+errLabel:
+  return rc;
+
+}
+
+cw::rc_t cw::midi::device::setEndMsg( handle_t h, unsigned devIdx, unsigned portIdx, unsigned msgIdx )
+{
+  rc_t      rc = kOkRC;
+  device_t* p          = _handleToPtr(h);
+  
+  if(_devIdxToFileDevIdx(p,devIdx) == kInvalidIdx )
+  {
+    cwLogError(kInvalidArgRC,"The device index %i does not identify a valid file device.",devIdx);
+    goto errLabel;
+  }
+
+  if((rc = set_end_msg_index( p->fileDevH, portIdx, msgIdx)) != kOkRC )
+    goto errLabel;
+  
+  
+errLabel:
+  return rc;
+
+}
+
+
+cw::rc_t cw::midi::device::start( handle_t h )
+{
+  rc_t rc = kOkRC;
+  device_t* p = _handleToPtr(h);
+
+  if( p->fileDevStateId != kPlayingStateId )
+  {
+
+    if((rc = rewind(p->fileDevH)) != kOkRC )
+    {
+      rc = cwLogError(rc,"Rewind failed on MIDI file device.");
+      goto errLabel;
+    }
+
+    p->start_time       = time::current_time();
+    p->offset_micros    = 0;
+    p->last_posn_micros = 0; 
+    p->fileDevStateId   = kPlayingStateId;
+  }
+errLabel:
+
+  if( rc != kOkRC )
+    rc = cwLogError(rc,"MIDI port start failed.");
+  
+  return rc;
+}
+  
+cw::rc_t cw::midi::device::stop( handle_t h )
+{
+  device_t* p = _handleToPtr(h);
+  
+  p->fileDevStateId = kStoppedStateId;
+  
+  return kOkRC;
+}
+
+cw::rc_t cw::midi::device::pause( handle_t h, bool pause_fl )
+{
+  rc_t rc = kOkRC;
+  device_t* p = _handleToPtr(h);
+  
+  switch( p->fileDevStateId )
+  {
+    case kStoppedStateId:
+      // unpausing does nothing from a 'stopped' state
+      break;
+      
+    case kPausedStateId:
+      if( !pause_fl )
+      {
+        p->start_time = time::current_time();
+        p->fileDevStateId = kPlayingStateId;    
+      }
+      break;
+      
+    case kPlayingStateId:
+      if( pause_fl )
+      {
+        p->offset_micros  = p->last_posn_micros;
+        p->fileDevStateId = kPausedStateId;
+      }
+      break;
+  }
+
+  return rc;
+}
+
+
+cw::rc_t cw::midi::device::report( handle_t h )
+{
+  rc_t rc = kOkRC;
+  textBuf::handle_t tbH;
+  
+  if((rc = textBuf::create(tbH)) != kOkRC )
+    goto errLabel;
+
+  report(h,tbH);
+  
+errLabel:
+  destroy(tbH);
+  return rc;
+}
+
+void cw::midi::device::report( handle_t h, textBuf::handle_t tbH)
+{
+  device_t* p = _handleToPtr(h);
+  report(p->alsaDevH,tbH);
+  report(p->fileDevH,tbH);  
+}
+
+
+void cw::midi::device::latency_measure_reset(handle_t h)
+{
+  device_t* p = _handleToPtr(h);
+  latency_measure_reset(p->alsaDevH);
+  latency_measure_reset(p->fileDevH);
+}
+
+cw::midi::device::latency_meas_combined_result_t cw::midi::device::latency_measure_result(handle_t h)
+{
+  device_t* p = _handleToPtr(h);
+  latency_meas_combined_result_t r;
+  r.alsa_dev = latency_measure_result(p->alsaDevH);
+  r.file_dev = latency_measure_result(p->fileDevH);
+  return r;
+}
+
+
+

cwMidiDevice.h

@@ -0,0 +1,89 @@
+#ifndef cwMidiPort_H
+#define cwMidiPort_H
+
+
+namespace cw
+{
+  namespace midi
+  {
+
+    // Flags used to identify input and output ports on MIDI devices
+    enum 
+    { 
+     kInMpFl  = 0x01, 
+     kOutMpFl = 0x02 
+    };
+
+
+
+    namespace device
+    {
+      typedef handle< struct device_str> handle_t;
+
+      
+      
+      rc_t create( handle_t&   h,
+                   cbFunc_t    cbFunc,
+                   void*       cbArg,
+                   const char* filePortLabelA[], // filePortLabelA[ maxFileCnt ]
+                   unsigned    maxFileCnt,       // count of file dev ports
+                   const char* appNameStr,
+                   const char* fileDevName = "file_dev",
+                   unsigned    fileDevReadAheadMicros = 3000,
+                   unsigned    parserBufByteCnt = 1024  );
+
+      rc_t create( handle_t&       h,
+                   cbFunc_t        cbFunc,
+                   void*           cbArg,
+                   const object_t* args );
+      
+      rc_t destroy( handle_t& h);
+      bool isInitialized( handle_t h );
+
+      unsigned    count( handle_t h );
+      const char* name(        handle_t h, unsigned devIdx );
+      unsigned    nameToIndex(handle_t h, const char* deviceName);
+      unsigned    portCount(  handle_t h, unsigned devIdx, unsigned flags );
+      const char* portName(   handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx );
+      unsigned    portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portName );
+      rc_t        portEnable(      handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx, bool enableFl );
+      
+      rc_t        send(       handle_t h, unsigned devIdx, unsigned portIdx, uint8_t st, uint8_t d0, uint8_t d1 );
+      rc_t        sendData(   handle_t h, unsigned devIdx, unsigned portIdx, const uint8_t* dataPtr, unsigned byteCnt );
+
+      rc_t        openMidiFile( handle_t h, unsigned devIdx, unsigned portIdx, const char* fname );
+      rc_t        seekToMsg(    handle_t h, unsigned devIdx, unsigned portIdx, unsigned msgIdx );
+      rc_t        setEndMsg(    handle_t h, unsigned devIdx, unsigned portidx, unsigned msgIdx );
+
+      rc_t start( handle_t h );
+      rc_t stop( handle_t h );
+      rc_t pause( handle_t h, bool pause_fl );
+      
+
+      typedef struct
+      {
+        time::spec_t note_on_input_ts;
+        time::spec_t note_on_output_ts;
+      } latency_meas_result_t;
+
+      typedef struct
+      {
+        latency_meas_result_t alsa_dev;
+        latency_meas_result_t file_dev;
+      } latency_meas_combined_result_t;
+
+      // Reset the latency measurement process.  Record the time of the first
+      // incoming note-on msg and the first outgoing note-on msg.
+      void latency_measure_reset(handle_t h);      
+      latency_meas_combined_result_t latency_measure_result(handle_t h);
+
+      rc_t report( handle_t h );
+      void report( handle_t h, textBuf::handle_t tbH);
+      
+      rc_t testReport();      
+    }
+  }
+}
+
+
+#endif

cwMidiDeviceTest.cpp

@@ -0,0 +1,389 @@
+#include "cwCommon.h"
+#include "cwLog.h"
+#include "cwCommonImpl.h"
+#include "cwMem.h"
+#include "cwTime.h"
+#include "cwObject.h"
+#include "cwText.h"
+#include "cwTextBuf.h"
+#include "cwThread.h"
+
+#include "cwMidi.h"
+#include "cwMidiDecls.h"
+#include "cwMidiFile.h"
+#include "cwMidiDevice.h"
+#include "cwMidiDeviceTest.h"
+
+namespace cw
+{
+  namespace midi
+  {
+    namespace device
+    {
+      typedef struct test_msg_str
+      {
+        msg_t        msg;
+        time::spec_t t;
+      } test_msg_t;
+      
+      typedef struct test_str
+      {
+        test_msg_t* msgA;
+        unsigned    msgN;
+        unsigned    msg_idx;
+        unsigned    file_dev_idx;
+        unsigned    port_idx;
+      } test_t;
+
+      rc_t _test_create( test_t*& pRef )
+      {
+        rc_t    rc = kOkRC;
+        test_t* p  = nullptr;
+        
+        p = mem::allocZ<test_t>();
+
+        p->msgN         = 0;
+        p->msgA         = nullptr;
+        p->file_dev_idx = kInvalidIdx;
+        p->port_idx     = kInvalidIdx;
+        pRef            = p;
+
+        return rc;
+      }
+
+      rc_t _test_open( test_t* p, unsigned fileDevIdx, unsigned portIdx, const char* fname )
+      {
+        rc_t           rc = kOkRC;
+        
+        if( p->file_dev_idx == kInvalidIdx )
+        {
+          file::handle_t mfH;
+        
+          if((rc = open(mfH,fname)) != kOkRC )
+            goto errLabel;
+
+          p->msgN         = msgCount(mfH);
+          p->msgA         = mem::allocZ<test_msg_t>(p->msgN);
+          p->file_dev_idx = fileDevIdx;
+          p->port_idx     = portIdx;
+
+          close(mfH);
+
+        }
+        
+      errLabel:
+        return rc;
+      }
+
+      rc_t _test_destroy( test_t* p )
+      {
+        if( p != nullptr )
+        {
+          mem::release(p->msgA);
+          mem::release(p);
+        }
+
+        return kOkRC;
+      }
+      
+      void _test_callback( const packet_t* pktArray, unsigned pktCnt )
+      {
+        unsigned i,j;
+        time::spec_t cur_time = time::current_time();
+        
+        for(i=0; i<pktCnt; ++i)
+        {
+          const packet_t* p = pktArray + i;
+
+          test_t* t = (test_t*)p->cbArg;
+
+          for(j=0; j<p->msgCnt; ++j)
+            if( p->msgArray != NULL )
+            {
+              if( t->msg_idx < t->msgN && p->devIdx == t->file_dev_idx && p->portIdx == t->port_idx )
+              {
+                t->msgA[t->msg_idx].msg = p->msgArray[j];
+                t->msgA[t->msg_idx].t   = cur_time;
+                t->msg_idx += 1;
+              }
+                  
+              if( isNoteOn(p->msgArray[j].status,p->msgArray[j].d1) )
+                printf("%ld %ld %i 0x%x %i %i\n", p->msgArray[j].timeStamp.tv_sec, p->msgArray[j].timeStamp.tv_nsec, p->msgArray[j].ch, p->msgArray[j].status,p->msgArray[j].d0, p->msgArray[j].d1);
+            }
+            else
+            {
+              printf("0x%x ",p->sysExMsg[j]);
+            }
+        }
+      }
+
+      bool _test_is_not_equal( const file::trackMsg_t* tmsg, const test_msg_t& m )
+      { return tmsg->status != m.msg.status || tmsg->u.chMsgPtr->d0 != m.msg.d0 || tmsg->u.chMsgPtr->d1 != m.msg.d1; }
+      
+      bool _test_is_equal( const file::trackMsg_t* tmsg, const test_msg_t& m )
+      { return !_test_is_not_equal(tmsg,m); }
+      
+      void _test_print( const file::trackMsg_t* tmsg, const test_msg_t& m )
+      {
+        const char* eql_mark = _test_is_equal(tmsg,m) ? "" : "*";
+        printf("%2i 0x%2x %3i %3i : %2i 0x%2x %3i %3i : %s\n",tmsg->u.chMsgPtr->ch, tmsg->status, tmsg->u.chMsgPtr->d0, tmsg->u.chMsgPtr->d1, m.msg.ch, m.msg.status, m.msg.d0, m.msg.d1, eql_mark);
+      }
+
+      void _test_print( unsigned long long t0, const file::trackMsg_t* tmsg, unsigned long long t1, const test_msg_t& m, unsigned dt )
+      {
+        const char* eql_mark = _test_is_equal(tmsg,m) ? "" : "*";
+        printf("%6llu %2i 0x%2x %3i %3i : %6llu %2i 0x%2x %3i %3i : %6i : %s\n",t0, tmsg->u.chMsgPtr->ch, tmsg->status, tmsg->u.chMsgPtr->d0, tmsg->u.chMsgPtr->d1, t1, m.msg.ch, m.msg.status, m.msg.d0, m.msg.d1, dt, eql_mark);
+      }
+      
+
+
+      rc_t _test_analyze( test_t* p, const char* fname )
+      {
+        rc_t rc = kOkRC;
+
+        file::handle_t           mfH;
+        const file::trackMsg_t** tmsgA;
+        unsigned                 tmsgN;
+        unsigned                 max_diff_micros = 0;
+        unsigned                 sum_micros = 0;
+        unsigned                 sum_cnt = 0;
+        unsigned                 i0 = kInvalidIdx;
+        unsigned                 j0 = kInvalidIdx;
+
+        // open the MIDI file under test
+        if((rc = open(mfH,fname)) != kOkRC )
+          goto errLabel;
+
+        tmsgA = msgArray(mfH);
+        tmsgN = msgCount(mfH);
+
+        printf("file:%i test:%i\n",tmsgN,p->msg_idx);
+
+        // for file trk msg and recorded msg
+        for(unsigned i=0,j=0; i<tmsgN && j<p->msg_idx; ++i)
+        {
+          // skip non-channel messages
+          if( isChStatus(tmsgA[i]->status)) 
+          {
+
+            unsigned long long d0 = 0;
+            unsigned long long d1 = 0;
+            unsigned           dt = 0;
+
+            // if there is a previous file msg
+            if( i0 != kInvalidIdx )
+            {
+              // get the elapsed time between the cur and prev file msg
+              d0 = tmsgA[i]->amicro - tmsgA[i0]->amicro;
+
+              // if there is a previous recorded msg
+              if( j0 != kInvalidIdx )
+              {
+                // get the time elapsed between the cur and prev recorded msg
+                d1 = time::elapsedMicros(p->msgA[j0].t,p->msgA[j].t);
+
+                dt  = (unsigned)(d0>d1 ? d0-d1 : d1-d0);
+
+                sum_micros += dt;
+                sum_cnt    += 1;
+                
+                if( dt > max_diff_micros )
+                  max_diff_micros = dt;
+                                
+              }
+            }
+            
+            _test_print(d0, tmsgA[i], d1, p->msgA[j], dt );
+
+            i0 = i;
+            j0 = j;
+            j += 1;
+          }
+        }
+        
+        printf("max diff:%i avg diff:%i micros\n",max_diff_micros,sum_cnt==0 ? 0 : sum_micros/sum_cnt);
+        
+      errLabel:
+        close(mfH);
+
+        return rc;
+      }
+
+      
+    }
+  }
+}
+
+cw::rc_t cw::midi::device::test( const object_t* cfg )
+{
+  rc_t            rc               = kOkRC;
+  const char*     testMidiFname    = nullptr;
+  const char*     fileDevName      = nullptr;
+  const char*     testFileLabel    = nullptr;
+  bool            testFileEnableFl = false;
+  const object_t* file_ports       = nullptr;
+  test_t*         t                = nullptr;
+  bool            quit_fl          = false;
+  char            ch;
+  handle_t        h;
+
+
+  if((rc = _test_create( t )) != kOkRC )
+  {
+    rc = cwLogError(rc,"Test create failed.");
+    goto errLabel;
+  }
+  
+  if((rc = create(h,_test_callback,t,cfg)) != kOkRC )
+  {
+    rc = cwLogError(rc,"MIDI dev create failed.");
+    goto errLabel;
+  }
+
+  report(h);
+
+  if((rc = cfg->getv("fileDevName",      fileDevName,
+                     "testFileLabel",    testFileLabel,
+                     "testFileEnableFl", testFileEnableFl,
+                     "file_ports",       file_ports)) != kOkRC )
+  {
+    rc = cwLogError(rc,"Parse 'file_ports' failed.");
+    goto errLabel;
+  }
+
+
+  // for each file dev port
+  for(unsigned i=0; i<file_ports->child_count(); ++i)
+  {
+    const char* fname      = nullptr;
+    const char* label      = nullptr;
+    bool        enable_fl  = false;
+    unsigned    fileDevIdx = kInvalidIdx;
+    unsigned    portIdx    = kInvalidIdx;
+
+    // parse the file/label pair
+    if((rc = file_ports->child_ele(i)->getv("file",fname,
+                                            "enable_fl", enable_fl,
+                                            "label",label)) != kOkRC )
+    {
+      rc = cwLogError(rc,"Parse failed on 'file_port' index %i.",i);
+      goto errLabel;
+    }
+
+    // get the file device name
+    if((fileDevIdx = nameToIndex(h,fileDevName)) == kInvalidIdx )
+    {
+      rc = cwLogError(kInvalidArgRC,"Unable to locate the MIDI file device '%s'.",cwStringNullGuard(fileDevName));
+      goto errLabel;
+    }
+
+    // get the file/label port index
+    if((portIdx = portNameToIndex(h,fileDevIdx,kInMpFl,label)) == kInvalidIdx )
+    {
+      rc = cwLogError(kInvalidArgRC,"Unable to locate the port '%s' on device '%s'.",cwStringNullGuard(label),cwStringNullGuard(fileDevName));
+      goto errLabel;
+    }
+
+    // open the MIDI file on this port
+    if((rc = openMidiFile(h,fileDevIdx,portIdx,fname)) != kOkRC )
+    {
+      rc = cwLogError(rc,"MIDI file open failed on '%s'.",fname);
+      goto errLabel;
+    }
+
+    if((rc = portEnable(h,fileDevIdx,kInMpFl,portIdx,enable_fl)) != kOkRC )
+    {
+      rc = cwLogError(rc,"MIDI file enable failed on '%s'.",fname);
+      goto errLabel;      
+    }
+
+    // if this is the test port
+    if( testFileEnableFl && testFileLabel != nullptr && textIsEqual(label,testFileLabel) )
+    {
+      testMidiFname = fname;
+
+      cwLogInfo("Test label:%s device:%i fname:%s",testFileLabel,fileDevIdx,fname);
+      
+      if((rc = _test_open(t,fileDevIdx,portIdx,fname)) != kOkRC )
+      {
+        rc = cwLogError(rc,"Test create failed.");
+        goto errLabel;
+      }
+    }    
+  }
+  
+  cwLogInfo("menu: (q)uit (b)egin (s)top (p)ause (u)npause (n)ote-on\n");
+
+  while( !quit_fl)
+  {
+    ch = getchar();
+    
+    switch(ch)
+    {
+      case 'q':
+        quit_fl = true;
+        break;
+        
+      case 'b':
+        printf("starting ...\n");
+        start(h);
+        break;
+        
+      case 's':
+        printf("stopping ...\n");
+        stop(h);
+        break;
+        
+      case 'p':
+        printf("pausing ...\n");        
+        pause(h,true);
+        break;
+        
+      case 'u':
+        printf("unpausing ...\n");        
+        pause(h,false);
+        break;
+        
+      case 'n':
+        printf("sending ...\n");
+        send(h,2,0,0x90,60,60);
+        break;
+    }
+  } 
+
+  
+errLabel:
+
+  if( testMidiFname != nullptr )
+    _test_analyze(t,testMidiFname);
+  
+  destroy(h);
+  _test_destroy(t);
+  
+  return rc;
+}
+
+
+cw::rc_t cw::midi::device::testReport()
+{
+  rc_t              rc              = kOkRC;
+  textBuf::handle_t tbH;
+  handle_t          h;
+
+  if((rc = create(h,nullptr,nullptr,nullptr,0,"test_report")) != kOkRC )
+    return rc;
+
+  // create a text buffer to hold the MIDI system report text
+  if((rc = textBuf::create(tbH)) != kOkRC )
+    goto errLabel;
+  
+  // generate and print the MIDI system report
+  report(h,tbH);
+  cwLogInfo("%s",textBuf::text(tbH));
+
+errLabel:
+  textBuf::destroy(tbH);
+  destroy(h);
+  return rc;
+  
+}

cwMidiDeviceTest.h

@@ -0,0 +1,10 @@
+namespace cw
+{
+  namespace midi
+  {
+    namespace device
+    {
+      rc_t test( const object_t* cfg );
+    }
+  }
+}

cwMidiFile.h

@@ -152,7 +152,7 @@ namespace cw
       const trackMsg_t* trackMsg( handle_t h, unsigned trackIdx );
 
       // Returns the total count of records in the midi file and the
-      // number in the array returned by cmMidiFileMsgArray(). 
+      // number in the array returned by msgArray(). 
       // Return kInvalidCnt if 'h' is invalid.
       unsigned msgCount( handle_t h );
 
@@ -221,7 +221,7 @@ namespace cw
 
       rc_t genCsvFile( const char* midiFn, const char* csvFn, bool printWarningsFl=true );
 
-      // Generate a text file reportusing cmMIdiFilePrintMsgs()
+      // Generate a text file report using printMsgs()
       rc_t report( const char* midiFn, log::handle_t logH );
 
       rc_t report_begin_end( const char* midiFn, unsigned msg_cnt=10, bool pitch_only_fl=true, log::handle_t logH=log::handle_t() );

cwMidiFileDev.cpp

@@ -0,0 +1,922 @@
+#include "cwCommon.h"
+#include "cwLog.h"
+#include "cwCommonImpl.h"
+#include "cwMem.h"
+#include "cwTime.h"
+#include "cwFile.h"
+#include "cwObject.h"
+#include "cwFileSys.h"
+#include "cwText.h"
+#include "cwTextBuf.h"
+#include "cwMidi.h"
+#include "cwMidiDecls.h"
+#include "cwMidiFile.h"
+#include "cwMidiDevice.h"
+#include <poll.h>
+#include "cwMidiFileDev.h"
+
+namespace cw
+{
+  namespace midi
+  {
+    namespace device
+    {
+      namespace file_dev
+      {
+
+        typedef struct file_msg_str
+        {
+          unsigned long long      amicro;   // 
+          msg_t*                  msg;      // msg_t as declared in cwMidiDecls.h
+          unsigned                file_idx;
+          unsigned                msg_idx;
+        } file_msg_t;
+      
+        
+        typedef struct file_str
+        {
+          char*                label;
+          char*                fname;
+          
+          msg_t*               msgA;
+          unsigned             msgN;
+          
+          bool                 enable_fl;
+        } file_t;
+      
+        typedef struct file_dev_str
+        {
+          cbFunc_t         cbFunc;
+          void*            cbArg;
+          
+          file_t*          fileA;      // fileA[ fileN ]
+          unsigned         fileN;      //
+        
+          file_msg_t*      msgA;       // msgA[ msgN ]
+          unsigned         msgAllocN;  //
+          unsigned         msgN; 
+
+          unsigned         devCnt;     // always 1
+          unsigned         base_dev_idx;
+          char*            dev_name;
+
+          bool             is_activeFl;
+
+          // The following indexes are all int p->msgA[ p->msgN ]
+          unsigned         beg_msg_idx;      // beg_msg_idx is the first msg to transmit
+          unsigned         end_msg_idx;      // end_msg_idx indicates the last msg to transmit, end_msg_idx+1 will not be transmitted
+          unsigned         next_wr_msg_idx;  // next_wr_msg_idx is the next msg to transmit
+          unsigned         next_rd_msg_idx;  // next_rd_msg_idx is the last msg transmitted
+
+          unsigned long long   start_delay_micros;
+          
+          unsigned long long read_ahead_micros;
+
+          bool                  latency_meas_enable_in_fl;
+          bool                  latency_meas_enable_out_fl;
+          latency_meas_result_t latency_meas_result;
+          
+        } file_dev_t;
+
+        file_dev_t * _handleToPtr(handle_t h)
+        { return handleToPtr<handle_t,file_dev_t>(h); }
+
+        rc_t _validate_file_index(file_dev_t* p, unsigned file_idx)
+        {
+          rc_t rc = kOkRC;
+        
+          if( file_idx >= p->fileN )
+            rc = cwLogError(kInvalidArgRC,"The MIDI device file/port index %i is invalid.",file_idx);
+        
+          return rc;
+        }
+
+        bool _file_exists( const file_t& r )
+        { return r.msgN > 0; }
+
+        rc_t _validate_file_existence(file_dev_t* p, unsigned file_idx )
+        {
+          rc_t rc;
+          if((rc = _validate_file_index(p,file_idx)) == kOkRC )
+            if( !_file_exists(p->fileA[file_idx]) )
+              rc = cwLogError(kInvalidArgRC,"The MIDI device file at file/port index %i does not exist.",file_idx);
+            
+          return rc;
+        }
+
+        rc_t _validate_dev_index(file_dev_t* p, unsigned dev_idx )
+        {
+          rc_t rc = kOkRC;
+          
+          if( dev_idx >= p->devCnt )
+            rc = cwLogError(kInvalidArgRC,"The MIDI file device index %i is invalid.",dev_idx );
+          return rc;
+        }
+
+        rc_t _validate_port_index(file_dev_t* p, unsigned port_idx )
+       { return _validate_file_index(p,port_idx); }
+
+        void _reset_indexes( file_dev_t* p )
+        {
+          p->beg_msg_idx     = kInvalidIdx;
+          p->end_msg_idx     = kInvalidIdx;
+          p->next_wr_msg_idx = kInvalidIdx;
+          p->next_rd_msg_idx = kInvalidIdx;          
+        }
+        
+        rc_t _close_file( file_dev_t* p, unsigned file_idx )
+        {
+          rc_t rc = kOkRC;
+
+          
+          if((rc = _validate_file_index(p,file_idx)) != kOkRC )
+            goto errLabel;
+
+          if( _file_exists(p->fileA[file_idx] ) )
+          {
+            // if the beg/end msg index refers to the file being closed then invalidate the beg/end msg idx
+            if( p->beg_msg_idx != kInvalidIdx && p->beg_msg_idx < p->msgN && p->msgA[ p->beg_msg_idx ].file_idx == file_idx )
+              p->beg_msg_idx = kInvalidIdx;
+            
+            if( p->end_msg_idx != kInvalidIdx && p->end_msg_idx < p->msgN && p->msgA[ p->end_msg_idx ].file_idx == file_idx )
+              p->end_msg_idx = kInvalidIdx;
+
+            mem::release(p->fileA[file_idx].fname);
+            p->fileA[file_idx].msgN = 0;
+          }
+
+          
+        errLabel:
+          return rc;
+        }
+      
+        rc_t _destroy( file_dev_t* p )
+        {
+          rc_t rc = kOkRC;
+
+          for(unsigned i=0; i<p->fileN; ++i)
+          {
+            mem::release(p->fileA[i].msgA);          
+            mem::release(p->fileA[i].label);
+            mem::release(p->fileA[i].fname);
+          }
+
+          mem::release(p->fileA);
+          mem::release(p->msgA);
+          mem::release(p->dev_name);
+          mem::release(p);
+          //errLabel:
+          return rc;
+        }
+
+
+        rc_t _open_midi_file( file_dev_t* p, unsigned file_idx, const char* fname )
+        {
+          rc_t                 rc = kOkRC;
+          midi::file::handle_t mfH;
+          
+          if((rc = open(mfH, fname)) != kOkRC )
+          {
+            rc = cwLogError(rc,"MIDI file open failed on '%s'.",cwStringNullGuard(fname));
+            goto errLabel;
+          }
+          else
+          {
+            unsigned                 msg_idx     = 0;
+            unsigned                 msgN        = msgCount(mfH);;
+            const file::trackMsg_t** fileMsgPtrA = msgArray(mfH);
+            
+            p->fileA[file_idx].msgA = mem::resizeZ<msg_t>(p->fileA[file_idx].msgA,msgN);
+            
+            for(unsigned j=0; j<msgN; ++j)
+              if( isChStatus(fileMsgPtrA[j]->status) )
+              {
+                msg_t* m = p->fileA[file_idx].msgA + msg_idx;
+                
+                m->uid       = j; 
+                m->ch        = fileMsgPtrA[j]->u.chMsgPtr->ch;
+                m->status    = fileMsgPtrA[j]->status;
+                m->d0        = fileMsgPtrA[j]->u.chMsgPtr->d0;
+                m->d1        = fileMsgPtrA[j]->u.chMsgPtr->d1;
+                m->timeStamp = time::microsecondsToSpec(fileMsgPtrA[j]->amicro); 
+
+                msg_idx += 1;
+              }
+
+            p->fileA[file_idx].msgN  = msg_idx;
+            p->fileA[file_idx].fname = mem::duplStr(fname);
+            close( mfH );
+
+          }
+          
+          
+        errLabel:
+          return rc;
+        }
+    
+        
+        unsigned _calc_msg_count( file_dev_t* p )
+        {
+          unsigned msgAllocN = 0;
+          for(unsigned i=0; i<p->fileN; ++i)
+            if( p->fileA[i].msgA != nullptr )
+              msgAllocN += p->fileA[i].msgN;
+        
+          return msgAllocN;          
+        }
+
+        // Set msg_idx to kInvalidIdx to seek to the current value of p->beg_msg_idx
+        // or 0 if p->beg_msg_idx was never set.
+        // If msg_idx is a valid msg index then it will be assigned to p->beg_msg_idx
+        rc_t _seek_to_msg_index( file_dev_t* p, unsigned file_idx, unsigned msg_idx )
+        {
+          rc_t rc;
+          unsigned i = 0;
+          unsigned beg_msg_idx = p->beg_msg_idx;
+          
+          if((rc = _validate_file_existence(p,file_idx)) != kOkRC )
+            goto errLabel;
+
+          // if no target msg was given ...
+          if( msg_idx == kInvalidIdx )
+          {
+            // ... then use the previous target msg or 0
+            beg_msg_idx = p->beg_msg_idx == kInvalidIdx ? 0 : p->beg_msg_idx;
+          }
+          else // if a target msg was given ..
+          {
+            // locate the msg in p->msgA[]
+            for(i=0; i<p->msgN; ++i)
+              if( p->msgA[i].file_idx == file_idx && p->msgA[i].msg_idx == msg_idx )
+              {
+                p->beg_msg_idx = i;
+                beg_msg_idx    = i;
+                break;
+              }
+
+            if( i == p->msgN )
+            {
+              rc = cwLogError(kEleNotFoundRC,"The 'begin' MIDI file event at index %i in %s was not found.",msg_idx,cwStringNullGuard(p->fileA[file_idx].label));
+              goto errLabel;
+            }
+          }
+
+          p->next_wr_msg_idx = beg_msg_idx;
+          p->next_rd_msg_idx = beg_msg_idx;
+          
+        errLabel:
+          return rc;
+        }
+
+        // Set file_idx and msg_idx to kInvalidIdx to make the p->msgN the end index.
+        // Set msg_idx to kInvalidIdx to make the last p->fileA[file_idx].msgN the end index.
+        rc_t _set_end_msg_index( file_dev_t* p, unsigned file_idx, unsigned msg_idx )
+        {
+          rc_t rc = kOkRC;
+          unsigned i = 0;
+
+          if( file_idx == kInvalidIdx )
+            p->end_msg_idx = p->msgN - 1;
+          else
+          {                    
+            if((rc = _validate_file_existence(p,file_idx)) != kOkRC )
+              goto errLabel;
+
+            if( msg_idx == kInvalidIdx )
+              msg_idx = p->fileA[ file_idx ].msgN - 1;
+            
+            // locate the msg in p->msgA[]
+            for(i=0; i<p->msgN; ++i)
+              if( p->msgA[i].file_idx == file_idx && p->msgA[i].msg_idx == msg_idx )
+              {
+                p->end_msg_idx = i;
+                break;
+              }
+
+            if( i == p->msgN )
+            {
+              rc = cwLogError(kEleNotFoundRC,"The 'end' MIDI file event at index %i in %s was not found.",msg_idx,cwStringNullGuard(p->fileA[file_idx].label));
+              goto errLabel;
+            }
+          }
+
+        errLabel:          
+          return rc;
+        }
+
+        
+        unsigned _fill_msg_array_from_msg( file_dev_t* p, unsigned file_idx, msg_t* msgA, unsigned msgN, unsigned msg_idx )
+        {
+          unsigned  k  = msg_idx;
+            
+          for(unsigned j=0; j<msgN; ++j)
+            if( isChStatus(msgA[j].status) )
+            {
+              p->msgA[k].msg_idx  = j;
+              p->msgA[k].amicro   = time::specToMicroseconds(msgA[j].timeStamp);
+              p->msgA[k].msg      = msgA + j;
+              p->msgA[k].file_idx = file_idx;
+              ++k;
+            }
+          
+          return k;
+          
+        }
+        
+        void _fill_msg_array( file_dev_t* p )
+        {
+          unsigned msg_idx = 0;
+          for(unsigned i=0; i<p->fileN; ++i)
+            if( p->fileA[i].msgA != nullptr )
+              msg_idx = _fill_msg_array_from_msg(p,i,p->fileA[i].msgA,p->fileA[i].msgN,msg_idx);
+
+          p->msgN = msg_idx;
+          
+        }
+
+        // Combine all the file msg's into a single array and sort them on file_msg_t.amicro.
+        rc_t _prepare_msg_array( file_dev_t* p )
+        {
+          rc_t     rc   = kOkRC;
+
+          // save the current starting message
+          unsigned beg_file_idx = p->beg_msg_idx==kInvalidIdx ? kInvalidIdx : p->msgA[ p->beg_msg_idx ].file_idx;
+          unsigned beg_msg_idx  = p->beg_msg_idx==kInvalidIdx ? kInvalidIdx : p->msgA[ p->beg_msg_idx ].msg_idx;
+
+          // if the 'beg' file does not exist
+          if( beg_file_idx != kInvalidIdx && _file_exists(p->fileA[ beg_file_idx ])==false )
+          {  
+            beg_file_idx = kInvalidIdx;
+            beg_msg_idx  = kInvalidIdx;
+          }
+
+          // save the current ending message
+          unsigned end_file_idx = p->end_msg_idx==kInvalidIdx ? kInvalidIdx : p->msgA[ p->end_msg_idx ].file_idx;
+          unsigned end_msg_idx  = p->end_msg_idx==kInvalidIdx ? kInvalidIdx : p->msgA[ p->end_msg_idx ].msg_idx;
+
+          // if the 'end' file does not exist
+          if( end_file_idx != kInvalidIdx && _file_exists(p->fileA[ end_file_idx ])==false )
+          {  
+            end_file_idx = kInvalidIdx;
+            end_msg_idx  = kInvalidIdx;
+          }
+
+          
+          // calc the count of message in all the files
+          p->msgAllocN = _calc_msg_count(p);
+
+          // allocate a single array to hold the messages from all the files
+          p->msgA = mem::resize<file_msg_t>(p->msgA,p->msgAllocN);
+
+          // fill p->msgA[] from each of the files
+          _fill_msg_array(p);
+
+          // sort p->msgA[] on msgA[].amicro
+          auto f = [](const file_msg_t& a0,const file_msg_t& a1) -> bool { return a0.amicro < a1.amicro; };
+          std::sort(p->msgA,p->msgA+p->msgN,f);
+
+          // by default we rewind to the first msg
+          p->next_wr_msg_idx = 0;
+          p->next_rd_msg_idx = 0;
+
+          // if a valid seek position exists then reset it
+          if( beg_file_idx != kInvalidIdx && beg_msg_idx != kInvalidIdx )
+            if((rc = _seek_to_msg_index( p, beg_file_idx, beg_msg_idx )) != kOkRC )
+              rc = cwLogError(rc,"The MIDI file device starting output message could not be restored.");
+
+          if( end_file_idx != kInvalidIdx && end_msg_idx != kInvalidIdx )
+            if((rc = _set_end_msg_index(p, end_file_idx, end_msg_idx )) != kOkRC )
+              rc = cwLogError(rc,"The MIDI file device ending output message could not be restored.");
+              
+        
+          return rc;        
+        }
+
+        void _update_active_flag( file_dev_t* p )
+        {
+            unsigned i=0;
+            for(; i<p->fileN; ++i)
+              if( _file_exists(p->fileA[i]) && p->fileA[i].enable_fl )
+                break;
+            
+            p->is_activeFl = i < p->fileN;          
+        }
+      
+        rc_t _enable_file(  handle_t h, unsigned file_idx, bool enable_fl )
+        {
+          rc_t rc;
+  
+          file_dev_t* p = _handleToPtr(h);
+  
+          if((rc = _validate_file_existence(p, file_idx)) != kOkRC )
+            goto errLabel;
+
+          p->fileA[ file_idx ].enable_fl = enable_fl;
+
+          _update_active_flag(p);
+          
+        errLabel:
+
+          if(rc != kOkRC )
+            rc = cwLogError(rc,"MIDI file device %s failed on file index %i.", enable_fl ? "enable" : "disable", file_idx );
+        
+          return rc;
+        }
+
+        void _callback( file_dev_t* p, unsigned file_idx, msg_t* msgA, unsigned msgN )
+        {
+          if( p->cbFunc != nullptr )
+          {
+            packet_t pkt = {
+              .cbArg    = p->cbArg,
+              .devIdx   = p->base_dev_idx,
+              .portIdx  = file_idx,
+              .msgArray = msgA,
+              .msgCnt   = msgN
+            };
+
+            p->cbFunc( &pkt, 1 );
+          }
+        }
+
+        void _packetize_and_transmit_msgs( file_dev_t* p, unsigned xmt_msg_cnt  )
+        {
+          msg_t msgA[ xmt_msg_cnt ];
+          
+          unsigned pkt_msg_idx = 0;
+          unsigned file_idx_0  = kInvalidIdx;
+
+          assert( p->next_rd_msg_idx != kInvalidIdx && p->next_wr_msg_idx != kInvalidIdx );
+          
+          for(; p->next_rd_msg_idx < p->next_wr_msg_idx && pkt_msg_idx < xmt_msg_cnt; ++p->next_rd_msg_idx)            
+          {
+            const file_msg_t& m = p->msgA[ p->next_rd_msg_idx ];
+            
+            if( p->fileA[ m.file_idx ].enable_fl && m.msg != nullptr  )
+            {
+              // 
+              if( p->latency_meas_enable_in_fl && isNoteOn(m.msg->status,m.msg->d1) )
+              {
+                p->latency_meas_enable_in_fl = false;
+                time::get(p->latency_meas_result.note_on_input_ts);
+              }
+              
+              // if the file_idx is not the same as the previous messages then
+              // send the currently stored messages from msgA[] - because packet
+              // messages must all belong to the same port
+              if( file_idx_0 != kInvalidIdx && m.file_idx != file_idx_0 )
+              {
+                _callback(p,file_idx_0,msgA,pkt_msg_idx);
+                pkt_msg_idx = 0;
+              }
+              
+              msgA[pkt_msg_idx]  = *m.msg;
+              file_idx_0         = m.file_idx;
+              pkt_msg_idx       += 1;
+            }
+          }
+          
+          if( pkt_msg_idx > 0 )
+            _callback(p,file_idx_0,msgA,pkt_msg_idx);
+        }
+
+        rc_t _load_messages( handle_t h, unsigned file_idx, const char* fname, const msg_t* msgA, unsigned msgN )
+        {
+          rc_t rc;
+          file_dev_t* p = _handleToPtr(h);
+
+          if((rc = _validate_file_index(p,file_idx)) != kOkRC )
+            goto errLabel;
+
+          if((rc = _close_file(p,file_idx)) != kOkRC )
+            goto errLabel;
+
+          if( fname != nullptr )
+          {
+            if((rc = _open_midi_file(p,file_idx,fname)) != kOkRC )
+              goto errLabel;            
+          }
+          else
+          {
+            if( msgA != nullptr )
+            {
+              p->fileA[ file_idx ].msgA = mem::allocZ<msg_t>(msgN);
+              p->fileA[ file_idx ].msgN = msgN;
+              memcpy(p->fileA[ file_idx ].msgA, msgA, msgN*sizeof(msg_t));
+            }
+            else
+            {
+              assert(0);
+            }
+          }
+          
+          if((rc = _prepare_msg_array(p)) != kOkRC )
+            goto errLabel;
+
+          p->fileA[ file_idx ].enable_fl = true;
+  
+        errLabel:
+
+          _update_active_flag(p);
+  
+          if( rc != kOkRC )
+            rc = cwLogError(rc,"MIDI file device msg. load port failed %i.",file_idx);
+  
+          return rc;  
+        }
+        
+      }
+    }
+  } 
+}
+
+
+cw::rc_t cw::midi::device::file_dev::create( handle_t&   hRef,
+                                             cbFunc_t    cbFunc,
+                                             void*       cbArg,
+                                             unsigned    baseDevIdx,
+                                             const char* labelA[],
+                                             unsigned    max_file_cnt,
+                                             const char* dev_name,
+                                             unsigned    read_ahead_micros)
+{
+  rc_t rc;
+  
+  if((rc = destroy(hRef)) != kOkRC )
+    return rc;
+
+  file_dev_t* p = mem::allocZ<file_dev_t>();
+
+  p->cbFunc                   = cbFunc;
+  p->cbArg                    = cbArg;
+  p->fileN                    = max_file_cnt;
+  p->fileA                    = mem::allocZ<file_t>(p->fileN);
+  p->devCnt                   = 1;
+  p->is_activeFl              = false;
+  p->read_ahead_micros        = read_ahead_micros;
+  p->base_dev_idx             = baseDevIdx;
+  p->dev_name                 = mem::duplStr(dev_name);
+
+  _reset_indexes(p);
+  
+  for(unsigned i=0; i<p->fileN; ++i)
+  {
+    if( labelA[i] != nullptr )
+    {
+      p->fileA[i].label = mem::duplStr(labelA[i]);
+    }
+    else
+    {
+      rc = cwLogError(kInvalidArgRC,"Count of MIDI file device labels must match the max file count.");
+      goto errLabel;
+    }
+  }
+
+  hRef.set(p);
+
+errLabel:
+  if(rc != kOkRC )
+    _destroy(p);
+  return rc;
+}
+
+cw::rc_t cw::midi::device::file_dev::destroy( handle_t& hRef )
+{
+  rc_t rc = kOkRC;
+  if(!hRef.isValid() )
+    return rc;
+
+  file_dev_t* p = _handleToPtr(hRef);
+
+  if((rc = _destroy(p)) != kOkRC )
+  {
+    rc = cwLogError(rc,"MIDI file device destroy failed.");
+    goto errLabel;
+  }
+
+  hRef.clear();
+
+errLabel:
+  return rc;
+}
+
+bool cw::midi::device::file_dev::is_active( handle_t h )
+{
+  file_dev_t* p = _handleToPtr(h);  
+  return p->is_activeFl;
+}
+
+unsigned cw::midi::device::file_dev::file_count( handle_t h )
+{
+  file_dev_t* p = _handleToPtr(h);
+  return p->fileN;
+}
+
+cw::rc_t cw::midi::device::file_dev::open_midi_file( handle_t h, unsigned file_idx, const char* fname )
+{
+  return _load_messages(h,file_idx,fname,nullptr,0);
+}
+
+cw::rc_t cw::midi::device::file_dev::load_messages( handle_t h, unsigned file_idx, const msg_t* msgA, unsigned msgN )
+{
+  return _load_messages(h,file_idx,nullptr,msgA,msgN);
+}
+
+
+cw::rc_t cw::midi::device::file_dev::enable_file(  handle_t h, unsigned file_idx, bool enableFl )
+{ return _enable_file(h,file_idx,enableFl); }
+
+cw::rc_t cw::midi::device::file_dev::enable_file(  handle_t h, unsigned file_idx )
+{ return _enable_file(h,file_idx,true); }
+
+cw::rc_t cw::midi::device::file_dev::disable_file( handle_t h,unsigned file_idx )
+{ return _enable_file(h,file_idx,false); }
+
+
+unsigned    cw::midi::device::file_dev::count( handle_t h )
+{
+  file_dev_t* p = _handleToPtr(h);
+  return p->devCnt;  
+}
+
+const char* cw::midi::device::file_dev::name( handle_t h, unsigned devIdx )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  return _validate_dev_index(p,devIdx)==kOkRC ? p->dev_name : nullptr;
+}
+
+unsigned    cw::midi::device::file_dev::nameToIndex(handle_t h, const char* deviceName)
+{
+  file_dev_t* p = _handleToPtr(h);  
+  return textIsEqual(deviceName,p->dev_name) ? 0 : kInvalidIdx;    
+}
+
+unsigned    cw::midi::device::file_dev::portCount(  handle_t h, unsigned devIdx, unsigned flags )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  if(_validate_dev_index(p,devIdx) != kOkRC )
+    return 0;
+  
+  return flags & kInMpFl ? p->fileN : 0;
+}
+
+const char* cw::midi::device::file_dev::portName(   handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  if( _validate_dev_index(p,devIdx) != kOkRC )
+    return nullptr;
+
+  if( _validate_port_index(p,portIdx) != kOkRC )
+    return nullptr;
+
+  return p->fileA[portIdx].label;
+}
+
+unsigned    cw::midi::device::file_dev::portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portName )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  if( _validate_dev_index(p,devIdx) != kOkRC )
+    return kInvalidIdx;
+
+  if( flags & kInMpFl )
+  {
+    for(unsigned i=0; i<p->fileN; ++i)
+      if( textIsEqual(p->fileA[i].label,portName) )
+        return i;
+  }
+  return kInvalidIdx;  
+}
+
+cw::rc_t  cw::midi::device::file_dev::portEnable( handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx, bool enableFl )
+{
+  rc_t        rc = kOkRC;
+  file_dev_t* p = _handleToPtr(h);
+  
+  if((rc = _validate_dev_index(p,devIdx)) != kOkRC )
+    goto errLabel;
+  
+  if( flags & kInMpFl )
+  {
+    rc = enable_file(h,portIdx,enableFl);
+  }
+  else
+  {
+    rc = cwLogError(kNotImplementedRC,"MIDI file dev output enable/disable has not been implemented.");
+  }
+
+    
+errLabel:
+  if(rc != kOkRC )
+    rc = cwLogError(rc,"MIDI file dev port enable/disable failed.");
+  
+  return rc;
+}
+
+
+cw::rc_t cw::midi::device::file_dev::seek_to_msg_index( handle_t h, unsigned file_idx, unsigned msg_idx )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  return _seek_to_msg_index(p,file_idx,msg_idx);
+}
+
+cw::rc_t cw::midi::device::file_dev::set_end_msg_index( handle_t h, unsigned file_idx, unsigned msg_idx )
+{
+  file_dev_t* p = _handleToPtr(h);
+  return _set_end_msg_index(p, file_idx, msg_idx );
+}
+  
+
+
+cw::rc_t cw::midi::device::file_dev::rewind( handle_t h )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  if( p->beg_msg_idx == kInvalidIdx )
+  {
+    p->next_wr_msg_idx = 0;
+    p->next_rd_msg_idx = 0;    
+  }
+  else
+  {
+    p->next_wr_msg_idx = p->beg_msg_idx;
+    p->next_rd_msg_idx = p->beg_msg_idx;
+  }
+  
+  return kOkRC;
+}
+
+cw::rc_t cw::midi::device::file_dev::set_start_delay(  handle_t h, unsigned start_delay_micros )
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  p->start_delay_micros = start_delay_micros;
+
+  return kOkRC;
+  
+}
+
+cw::midi::device::file_dev::exec_result_t cw::midi::device::file_dev::exec( handle_t h, unsigned long long cur_time_us )
+{
+  exec_result_t r;
+  
+  file_dev_t*p = _handleToPtr(h);
+
+  // p->end_msg_idx indicates the last msg to transmit, but we wait until the msg following p->end_msg_idx to
+  // actually stop transmitting and set r.eof_fl.  This will facilitate providing a natural time gap to loop to the beginning.
+  unsigned end_msg_idx  = p->end_msg_idx == kInvalidIdx ? p->msgN-1 : p->end_msg_idx;
+
+  
+  // if there are no messages left to send
+  if( p->next_wr_msg_idx==kInvalidIdx || p->next_wr_msg_idx >= p->msgN || p->next_wr_msg_idx > p->end_msg_idx )
+  {
+    r.next_msg_wait_micros = 0;
+    r.xmit_cnt = 0;
+    r.eof_fl = true;
+  }
+  else
+  {
+
+    if( cur_time_us < p->start_delay_micros )
+    {
+      r.xmit_cnt = 0;
+      r.eof_fl   = false;
+      r.next_msg_wait_micros = p->start_delay_micros - cur_time_us;
+    }
+    else
+    {
+      cur_time_us -= p->start_delay_micros;
+      
+      unsigned            base_msg_idx = p->beg_msg_idx == kInvalidIdx ? 0         : p->beg_msg_idx;
+      
+      assert( base_msg_idx <= p->next_wr_msg_idx );
+      
+      unsigned long long  msg_time_us  = p->msgA[ p->next_wr_msg_idx ].amicro - p->msgA[ base_msg_idx ].amicro;
+      unsigned            xmit_cnt     = 0;
+      unsigned long long  end_time_us  = cur_time_us + p->read_ahead_micros;
+      
+      // for all msgs <= current time + read_ahead_micros
+      while( msg_time_us <= end_time_us )
+      {
+        //
+        // consume msg here
+        //
+
+        xmit_cnt += 1;
+      
+        // advance to next msg
+        p->next_wr_msg_idx += 1; 
+            
+        // check for EOF
+        if( p->next_wr_msg_idx >= p->msgN)
+          break;
+
+        // time of next msg
+        msg_time_us = p->msgA[ p->next_wr_msg_idx ].amicro - p->msgA[ base_msg_idx ].amicro;
+
+        // if we went past the end msg then stop
+        if( p->next_wr_msg_idx > end_msg_idx )
+          break;
+      }
+
+      assert( p->next_wr_msg_idx >= p->msgN || msg_time_us > cur_time_us );
+    
+      r.xmit_cnt             = xmit_cnt;
+      r.eof_fl               = p->next_wr_msg_idx >= p->msgN;
+      r.next_msg_wait_micros = r.eof_fl ? 0 : msg_time_us - cur_time_us;
+    
+      // callback with output msg's
+      if( xmit_cnt )
+        _packetize_and_transmit_msgs( p, xmit_cnt  );
+    }
+    
+  }
+
+  return r;
+          
+}
+
+
+cw::rc_t    cw::midi::device::file_dev::send( handle_t h, unsigned devIdx, unsigned portIdx, uint8_t st, uint8_t d0, uint8_t d1 )
+{
+  return cwLogError(kNotImplementedRC,"MIDI file dev send() not implemented.");
+
+  file_dev_t* p  = _handleToPtr(h);
+  
+  if( p->latency_meas_enable_out_fl && isNoteOn(st,d1) )
+  {
+    p->latency_meas_enable_out_fl = false;
+    time::get(p->latency_meas_result.note_on_output_ts);
+  }
+  
+}
+
+cw::rc_t    cw::midi::device::file_dev::sendData( handle_t h, unsigned devIdx, unsigned portIdx, const uint8_t* dataPtr, unsigned byteCnt )
+{
+  return cwLogError(kNotImplementedRC,"MIDI file dev send() not implemented."); 
+}
+
+void cw::midi::device::file_dev::latency_measure_reset(handle_t h)
+{
+  file_dev_t* p  = _handleToPtr(h);
+  
+  p->latency_meas_result.note_on_input_ts = {};
+  p->latency_meas_result.note_on_output_ts = {};
+  p->latency_meas_enable_in_fl           = true;
+  p->latency_meas_enable_out_fl          = true;
+}
+
+cw::midi::device::latency_meas_result_t cw::midi::device::file_dev::latency_measure_result(handle_t h)
+{
+  file_dev_t* p  = _handleToPtr(h);
+  return p->latency_meas_result;
+}
+
+
+void cw::midi::device::file_dev::report( handle_t h, textBuf::handle_t tbH)
+{
+  file_dev_t* p = _handleToPtr(h);
+
+  print(tbH,"%i : Device: '%s'\n",p->base_dev_idx,p->dev_name);
+  
+  if( p->fileN )
+    print(tbH,"  Input:\n");
+  
+  
+  for(unsigned i=0; i<p->fileN; ++i)
+  {
+    const char* fname = "<none>";
+    
+    if( p->fileA[i].fname != nullptr )
+    {
+      fname = p->fileA[i].fname;
+    }
+    else
+      if( p->fileA[i].msgA != nullptr )
+      {
+        fname = "msg array";
+      }
+    
+    print(tbH,"               port:%i    '%s' ena:%i msg count:%i %s\n",
+          i,
+          cwStringNullGuard(p->fileA[i].label),
+          p->fileA[i].enable_fl,
+          p->fileA[i].msgN,
+          fname );
+  }
+  
+}
+
+
+cw::rc_t cw::midi::device::file_dev::test( const object_t* cfg )
+{
+  rc_t        rc       = kOkRC;
+    
+  
+  return rc;
+  
+}

cwMidiFileDev.h

@@ -0,0 +1,100 @@
+namespace cw
+{
+  namespace midi
+  {
+    namespace device
+    {
+      namespace file_dev
+      {
+        
+        typedef handle<struct file_dev_str> handle_t;
+
+        // 
+        // Count of labels determines the count of ports.
+        // Note that port indexes and file indexes are synonomous.
+        rc_t create( handle_t& hRef,
+                     cbFunc_t    cbFunc,
+                     void*       cbArg, 
+                     unsigned    baseDevIdx, // device index assigned to packet_t.devIndex in callbacks
+                     const char* labelA[], // labelA[ max_file_cnt ] assigns a textual label to each port.
+                     unsigned    max_file_cnt,
+                     const char* dev_name          = "file_dev", // name of the file device
+                     unsigned    read_ahead_micros = 3000);      // exec() will xmit events up to 'read_ahead_micros' after the current time
+        rc_t destroy( handle_t& hRef );
+
+        // Return true if at least one enabled file exists, otherwise return false.
+        bool is_active( handle_t h );
+
+        // Returns create(...,max_file_cnt...)
+        unsigned file_count( handle_t h );
+
+        // Assign a MIDI file to an input port.
+        rc_t open_midi_file( handle_t h, unsigned file_idx, const char* fname );
+        rc_t load_messages(  handle_t h, unsigned file_idx, const msg_t* msgA, unsigned msgN );
+
+        // Enable and disble the output of the specified file/port.
+        rc_t enable_file(  handle_t h, unsigned file_idx, bool enableFl );
+        rc_t enable_file(  handle_t h, unsigned file_idx );
+        rc_t disable_file( handle_t h,unsigned file_idx );
+
+
+        // Device count: Always 1.
+        unsigned    count( handle_t h );
+        
+        // Device name as set in create()
+        const char* name(        handle_t h, unsigned devIdx );
+
+        // Returns 0 if deviceName == name() else kInvalidIdx
+        unsigned    nameToIndex(handle_t h, const char* deviceName);
+
+        // The count of ports is determined by count of labels in create(...,labelA[],...).
+        unsigned    portCount(  handle_t h, unsigned devIdx, unsigned flags );
+
+        // Port name are provided by create(...,labelA[],...)
+        // Port indexes and file indexes are the same.
+        const char* portName(   handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx );
+        unsigned    portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portName );
+        rc_t        portEnable(      handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx, bool enableFl );
+        
+
+        typedef struct exec_result_str
+        {
+          unsigned next_msg_wait_micros; // microseconds before the next file msg must be transmitted
+          unsigned xmit_cnt;             // count of msg's sent to callback during this exec
+          bool     eof_fl;               // true if there are no more file msg's to transmit
+          
+        } exec_result_t;
+
+
+        // Set the next msg to be returned.
+        rc_t seek_to_msg_index( handle_t h, unsigned file_idx, unsigned msg_idx );
+        rc_t set_end_msg_index( handle_t h, unsigned file_idx, unsigned msg_idx );
+
+        // Seek to the start of the file or to the last msg_idx set by seek_to_event().
+        rc_t rewind( handle_t h );
+
+        
+        // Delay the first MIDI msg by 'start_delay_micros'.
+        rc_t set_start_delay(  handle_t h, unsigned start_delay_micros );
+
+        
+        
+        // Callback create(...,cbFunc,...) with msg's whose time has expired and return the
+        // time delay prior to the next message.
+        exec_result_t exec( handle_t h, unsigned long long elapsed_micros );
+
+        rc_t        send(       handle_t h, unsigned devIdx, unsigned portIdx, uint8_t st, uint8_t d0, uint8_t d1 );
+        rc_t        sendData(   handle_t h, unsigned devIdx, unsigned portIdx, const uint8_t* dataPtr, unsigned byteCnt );
+
+
+        // Reset the latency measurement process.
+        void latency_measure_reset(handle_t h);      
+        latency_meas_result_t latency_measure_result(handle_t h);
+        
+        void report( handle_t h, textBuf::handle_t tbH );
+        
+        rc_t test( const object_t* cfg );
+      }
+    }
+  }
+} 

cwMidiParser.cpp

@@ -4,13 +4,8 @@
 #include "cwMem.h"
 #include "cwTime.h"
 #include "cwMidi.h"
-#include "cwTextBuf.h"
+#include "cwMidiDecls.h"
-
+#include "cwMidiParser.h"
-#include "cwMidiPort.h"
-
-//===================================================================================================
-//
-//
 
 namespace cw
 {
@@ -63,7 +58,7 @@ namespace cw
         cbRecd_t* c = p->cbChain;
         for(; c!=NULL; c=c->linkPtr)
         {
-          pkt->cbDataPtr = c->cbDataPtr;
+          pkt->cbArg = c->cbDataPtr;
           c->cbFunc( pkt, pktCnt );
         }
       }
@@ -89,7 +84,6 @@ namespace cw
         p->pkt.msgArray = NULL;
         p->pkt.sysExMsg = p->buf;
         p->pkt.msgCnt   = p->bufIdx;
-        //p->cbFunc( &p->pkt, 1 );
         _cmMpParserCb(p,&p->pkt,1);
         p->bufIdx = 0;
 
@@ -110,7 +104,9 @@ namespace cw
 
         // fill the buffer msg
         msgPtr->timeStamp = *timeStamp;
-        msgPtr->status  = p->status;
+        msgPtr->status  = p->status & 0xf0;
+        msgPtr->ch      = p->status & 0x0f;
+        msgPtr->uid     = kInvalidId;
 
         switch( p->dataCnt )
         {
@@ -171,10 +167,6 @@ cw::rc_t cw::midi::parser::create( handle_t& hRef, unsigned devIdx, unsigned por
   p->pkt.devIdx        = devIdx;
   p->pkt.portIdx       = portIdx;
 
-  //p->cbChain           = cmMemAllocZ( cbRecd_t, 1 );
-  //p->cbChain->cbFunc    = cbFunc;
-  //p->cbChain->cbDataPtr = cbDataPtr;
-  //p->cbChain->linkPtr   = NULL;
   p->cbChain           = NULL;
   p->buf               = mem::allocZ<uint8_t>( bufByteCnt );
   p->bufByteCnt        = bufByteCnt;
@@ -406,6 +398,7 @@ cw::rc_t  cw::midi::parser::transmit( handle_t h )
   return kOkRC;
 }
 
+
 cw::rc_t      cw::midi::parser::installCallback( handle_t h, cbFunc_t  cbFunc, void* cbDataPtr )
 {
   parser_t*   p        = _handleToPtr(h);
@@ -474,95 +467,3 @@ bool cw::midi::parser::hasCallback( handle_t h, cbFunc_t cbFunc, void* cbArg )
   return false;
 }
 
-//====================================================================================================
-//
-//
-
-unsigned    cw::midi::device::nameToIndex(handle_t h, const char* deviceName)
-{
-  assert(deviceName!=NULL);
-  unsigned i;
-  unsigned n = count(h);
-  for(i=0; i<n; ++i)
-    if( strcmp(name(h,i),deviceName)==0)
-      return i;
-  return kInvalidIdx;
-}
-
-unsigned    cw::midi::device::portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portNameStr )
-{
-  unsigned i;
-  unsigned n = portCount(h,devIdx,flags);
-  for(i=0; i<n; ++i)
-    if( strcmp(portName(h,devIdx,flags,i),portNameStr)==0)
-      return i;
-
-  return kInvalidIdx;
-}
-
-//====================================================================================================
-//
-//
-
-namespace cw
-{
-  namespace midi
-  {
-    namespace device
-    {
-
-      void testCallback( const packet_t* pktArray, unsigned pktCnt )
-      {
-        unsigned i,j;
-        for(i=0; i<pktCnt; ++i)
-        {
-          const packet_t* p = pktArray + i;
-
-          for(j=0; j<p->msgCnt; ++j)
-            if( p->msgArray != NULL )
-            {
-              if( ((p->msgArray[j].status & 0xf0) == kNoteOnMdId) && (p->msgArray[j].d1>0))
-                printf("%ld %ld 0x%x %i %i\n", p->msgArray[j].timeStamp.tv_sec, p->msgArray[j].timeStamp.tv_nsec, p->msgArray[j].status,p->msgArray[j].d0, p->msgArray[j].d1);
-            }
-            else
-            {
-              printf("0x%x ",p->sysExMsg[j]);
-            }
-        }
-      }
-    } // device
-  } // midi
-} // cw
-    
-cw::rc_t cw::midi::device::test()
-{
-  rc_t              rc               = kOkRC;
-  char              ch;
-  unsigned          parserBufByteCnt = 1024;
-  textBuf::handle_t tbH;
-  handle_t          h;
-
-  // initialie the MIDI system
-  if((rc = create(h,testCallback,NULL,parserBufByteCnt,"app")) != kOkRC )
-    return rc;
-
-  // create a text buffer to hold the MIDI system report text
-  if((rc = textBuf::create(tbH)) != kOkRC )
-    goto errLabel;
-
-  // generate and print the MIDI system report
-  report(h,tbH);
-  cwLogInfo("%s",textBuf::text(tbH));
-  
-  cwLogInfo("any key to send note-on (<q>=quit)\n");
-
-  while((ch = getchar()) != 'q')
-  {
-    send(h,2,0,0x90,60,60);
-  } 
-
- errLabel:
-  textBuf::destroy(tbH);
-  destroy(h);
-  return rc;
-}

cwMidiParser.h

@@ -0,0 +1,36 @@
+
+namespace cw
+{
+  namespace midi
+  {
+    namespace parser
+    {
+      typedef handle<struct parser_str> handle_t;
+      
+      // 'cbFunc' and 'cbArg' are optional.  If 'cbFunc' is not supplied in the call to
+      // create() it may be supplied later by installCallback().
+      // 'bufByteCnt' define is the largest complete system-exclusive message the parser will 
+      // by able to transmit. System-exclusive messages larger than this will be broken into 
+      // multiple sequential callbacks. 
+      rc_t     create(  handle_t& hRef, unsigned devIdx, unsigned portIdx, cbFunc_t cbFunc, void* cbArg, unsigned bufByteCnt );
+      rc_t     destroy( handle_t& hRef );
+      unsigned errorCount( handle_t h );
+      void     parseMidiData(    handle_t h, const time::spec_t* timestamp, const uint8_t* buf, unsigned bufByteCnt );
+
+      // The following two functions are intended to be used togetther.
+      // Use midiTriple() to insert pre-parsed msg's to the output buffer,
+      // and then use transmit() to send the buffer via the parsers callback function.
+      // Set the data bytes to 0xff if they are not used by the message.
+      rc_t midiTriple( handle_t h, const time::spec_t* timestamp, uint8_t status, uint8_t d0, uint8_t d1 );
+      rc_t transmit(    handle_t h ); 
+
+      // Install/Remove additional callbacks.
+      rc_t installCallback( handle_t h, cbFunc_t cbFunc, void* cbDataPtr );
+      rc_t removeCallback(  handle_t h, cbFunc_t cbFunc, void* cbDataPtr );
+
+      // Returns true if the parser uses the given callback.
+      bool hasCallback(     handle_t h, cbFunc_t cbFunc, void* cbDataPtr );
+      
+    }
+  }
+}

cwMidiPort.h

@@ -1,101 +0,0 @@
-#ifndef cwMidiPort_H
-#define cwMidiPort_H
-
-#include "cwMidiDecls.h"
-
-namespace cw
-{
-  namespace midi
-  {
-
-    //(  { file_desc:"Device independent MIDI port related code." kw:[midi]}
-
-    // Flags used to identify input and output ports on MIDI devices
-    enum 
-    { 
-     kInMpFl  = 0x01, 
-     kOutMpFl = 0x02 
-    };
-
-    typedef void (*cbFunc_t)( const packet_t* pktArray, unsigned pktCnt );
-
-    //)
-    //(  { label:parser file_desc:"MIDI event parser converts raw MIDI events into packet_t messages." kw:[midi]}
-
-    //===============================================================================================
-    // MIDI Parser
-    //
-    
-    namespace parser
-    {
-      typedef handle<struct parser_str> handle_t;
-      
-      // 'cbFunc' and 'cbDataPtr' are optional.  If 'cbFunc' is not supplied in the call to
-      // create() it may be supplied later by installCallback().
-      // 'bufByteCnt' defines is the largest complete system-exclusive message the parser will 
-      // by able to transmit. System-exclusive messages larger than this will be broken into 
-      // multiple sequential callbacks. 
-      rc_t     create(  handle_t& hRef, unsigned devIdx, unsigned portIdx, cbFunc_t cbFunc, void* cbArg, unsigned bufByteCnt );
-      rc_t     destroy( handle_t& hRef );
-      unsigned errorCount( handle_t h );
-      void     parseMidiData(    handle_t h, const time::spec_t* timestamp, const uint8_t* buf, unsigned bufByteCnt );
-
-      // The following two functions are intended to be used togetther.
-      // Use midiTriple() to insert pre-parsed msg's to the output buffer,
-      // and then use transmit() to send the buffer via the parsers callback function.
-      // Set the data bytes to 0xff if they are not used by the message.
-      rc_t midiTriple( handle_t h, const time::spec_t* timestamp, uint8_t status, uint8_t d0, uint8_t d1 );
-      rc_t transmit(    handle_t h ); 
-
-      // Install/Remove additional callbacks.
-      rc_t installCallback( handle_t h, cbFunc_t cbFunc, void* cbDataPtr );
-      rc_t removeCallback(  handle_t h, cbFunc_t cbFunc, void* cbDataPtr );
-
-      // Returns true if the parser uses the given callback.
-      bool hasCallback(     handle_t h, cbFunc_t cbFunc, void* cbDataPtr );
-      
-    }
-
-    //)
-    //(  { label:cmMidiPort file_desc:"Device independent MIDI port." kw:[midi]}
-
-    //===============================================================================================
-    // MIDI Device Interface
-    //
-    
-
-    namespace device
-    {
-      typedef handle< struct device_str> handle_t;
-      
-      // 'cbFunc' and 'cbDataPtr' are optional (they may be set to NULL).  In this case
-      // 'cbFunc' and 'cbDataPtr' may be set in a later call to cmMpInstallCallback().
-      rc_t create( handle_t& h, cbFunc_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, const char* appNameStr );
-      rc_t destroy( handle_t& h);
-      bool isInitialized( handle_t h );
-
-      unsigned    count( handle_t h );
-      const char* name(        handle_t h, unsigned devIdx );
-      unsigned    nameToIndex(handle_t h, const char* deviceName);
-      unsigned    portCount(  handle_t h, unsigned devIdx, unsigned flags );
-      const char* portName(   handle_t h, unsigned devIdx, unsigned flags, unsigned portIdx );
-      unsigned    portNameToIndex( handle_t h, unsigned devIdx, unsigned flags, const char* portName );
-      rc_t        send(       handle_t h, unsigned devIdx, unsigned portIdx, uint8_t st, uint8_t d0, uint8_t d1 );
-      rc_t        sendData(   handle_t h, unsigned devIdx, unsigned portIdx, const uint8_t* dataPtr, unsigned byteCnt );
-
-      // Set devIdx to -1 to assign the callback to all devices.
-      // Set portIdx to -1 to assign the callback to all ports on the specified devices.
-      // 
-      rc_t installCallback( handle_t h, unsigned devIdx, unsigned portIdx, cbFunc_t cbFunc, void* cbDataPtr );
-      rc_t removeCallback(  handle_t h, unsigned devIdx, unsigned portIdx, cbFunc_t cbFunc, void* cbDataPtr );
-      bool usesCallback(    handle_t h, unsigned devIdx, unsigned portIdx, cbFunc_t cbFunc, void* cbDataPtr );
-      
-      void report( handle_t h, textBuf::handle_t tbH);
-      
-      rc_t test();
-    }
-  }
-}
-
-
-#endif

cwMutex.cpp

@@ -36,6 +36,15 @@ namespace cw
     
       return rc;    
     }
+
+    time::spec_t _future_ms(unsigned timeout_milliseconds)
+    {
+      time::spec_t ts;
+      clock_gettime(CLOCK_REALTIME,&ts); 
+      time::advanceMs(ts,timeout_milliseconds);
+      return ts;
+    }
+    
   }
 }
 
@@ -102,10 +111,15 @@ cw::rc_t cw::mutex::lock( handle_t h, unsigned timeout_milliseconds )
   rc_t     rc = kOkRC;
   mutex_t* p  = _handleToPtr(h);
   int      sysRc;
-  time::spec_t ts;
+  time::spec_t ts = _future_ms(timeout_milliseconds);
+
+  // Apparently timedlock depends on using CLOCK_REALTIME vs CLOCK_MONOTONIC
+  // so we can't call to time::current_time() which uses CLOCK_MONOTONIC.
+  // TODO: See this: https://stackoverflow.com/questions/14248033/clock-monotonic-and-pthread-mutex-timedlock-pthread-cond-timedwait
+  // and consider changing this to use CLOCK_MONOTONIC.
+  //clock_gettime(CLOCK_REALTIME,&ts); 
+  //time::advanceMs(ts,timeout_milliseconds);
   
-  time::get(ts);
-  time::advanceMs(ts,timeout_milliseconds);
   
   
   switch(sysRc = pthread_mutex_timedlock(&p->mutex,&ts) )
@@ -170,9 +184,10 @@ cw::rc_t cw::mutex::waitOnCondVar( handle_t h, bool lockThenWaitFl, unsigned tim
   else  // ... otherwise use the cond. var. wait with timeout API
   {
 
-    struct timespec ts;
+    struct timespec ts = _future_ms(timeOutMs);
     
-    if((rc = time::futureMs(ts,timeOutMs)) == kOkRC )    
+    
+    //if((rc = time::futureMs(ts,timeOutMs)) == kOkRC )    
       if((sysRC = pthread_cond_timedwait(&p->cvar,&p->mutex,&ts)) != 0 )
       {
         if( sysRC == ETIMEDOUT )

cwNbMem.cpp

@@ -365,7 +365,7 @@ cw::rc_t cw::nbmem::test_multi_threaded()
     ctx.threadA[i].varA = mem::allocZ<void*>(threadVarN);
     ctx.threadA[i].varN = threadVarN;
     
-    if((rc = thread::create(ctx.threadA[i].threadH, _test_thread_func, ctx.threadA + i )) != kOkRC )
+    if((rc = thread::create(ctx.threadA[i].threadH, _test_thread_func, ctx.threadA + i, "nb_mem" )) != kOkRC )
       break;
   }
   

cwObject.h

@@ -211,7 +211,7 @@ namespace cw
         if( cwIsNotFlag(flags, kOptionalFl) )
           return cwLogError(kInvalidIdRC,"The pair label '%s' could not be found.",cwStringNullGuard(label));
         
-        return kLabelNotFoundRC;
+        return kEleNotFoundRC;
         
       }
       return o->value(v);
@@ -226,7 +226,7 @@ namespace cw
       rc_t rc = get(label,valRef,flags);
 
       // if no error occurred ....
-      if( rc == kOkRC || (rc == kLabelNotFoundRC && cwIsFlag(flags,kOptionalFl)))
+      if( rc == kOkRC || (rc == kEleNotFoundRC && cwIsFlag(flags,kOptionalFl)))
         rc =  _getv(flags, std::forward<ARGS>(args)...); // ... recurse to find next label/value pair
       else
         rc = cwLogError(rc,"Object parse failed for the pair label:'%s'.",cwStringNullGuard(label));

cwPianoScore.cpp

@@ -4,45 +4,28 @@
 #include "cwMem.h"
 #include "cwText.h"
 #include "cwObject.h"
-#include "cwPianoScore.h"
+
+
+
 #include "cwMidi.h"
 #include "cwTime.h"
 #include "cwFile.h"
 #include "cwCsv.h"
 #include "cwVectOps.h"
 
+#include "cwDynRefTbl.h"
+#include "cwScoreParse.h"
+#include "cwSfScore.h"
+#include "cwSfTrack.h"
+#include "cwPerfMeas.h"
+#include "cwPianoScore.h"
+
 #define INVALID_PERF_MEAS (-1)
 
 namespace cw
 {
   namespace perf_score
   {
-    /*
-    enum {
-      kMeasColIdx = 0,
-      kLocColIdx,
-      kSecColIdx,
-      kSciPitchColIdx,
-      kStatusColIdx,
-      kD0ColIdx,
-      kD1ColIdx,
-      kBarColIdx,
-      kSectionColIdx,
-      kEvenColIdx,
-      kDynColIdx,
-      kTempoColIdx,
-      kCostColIdx,
-      kColCnt
-    };
-
-    typedef struct col_map_str
-    {
-      unsigned    colId;
-      const char* label;
-      bool        enableFl;
-    } col_map_t;
-    */
-  
   typedef struct score_str
     {
       event_t* base;
@@ -57,24 +40,6 @@ namespace cw
       
     } score_t;
 
-    /*
-    col_map_t col_map_array[] = { 
-      { kMeasColIdx,     "meas",      true },
-      { kLocColIdx,      "loc",       true },
-      { kLocColIdx,      "oloc",      false },
-      { kSecColIdx,      "sec",       true },
-      { kSciPitchColIdx, "sci_pitch", true },
-      { kStatusColIdx,   "status",    true },
-      { kD0ColIdx,       "d0",        true },
-      { kD1ColIdx,       "d1",        true },
-      { kBarColIdx,      "bar",       true },
-      { kSectionColIdx,  "section",   true },
-      { kEvenColIdx,     "even",      true },
-      { kDynColIdx,      "dyn",       true },
-      { kTempoColIdx,    "tempo",     true },
-      { kCostColIdx,     "cost",      true },
-    };
-    */
     score_t* _handleToPtr(handle_t h)
     {
       return handleToPtr<handle_t,score_t>(h);
@@ -116,6 +81,67 @@ namespace cw
       }      
     }
 
+    void _setup_feat_vectors( score_t* p )
+    {
+      for(event_t* e=p->base; e!=nullptr; e=e->link)
+        if( e->valid_stats_fl )
+        {
+          for(unsigned i=0; i<perf_meas::kValCnt; ++i)
+          {
+            unsigned stat_idx = e->statsA[i].id;
+            
+            switch( e->statsA[i].id )
+            {
+              case perf_meas::kEvenValIdx:      e->featV[ stat_idx ] = e->even;  break;
+              case perf_meas::kDynValIdx:       e->featV[ stat_idx ] = e->dyn;   break;
+              case perf_meas::kTempoValIdx:     e->featV[ stat_idx ] = e->tempo; break;
+              case perf_meas::kMatchCostValIdx: e->featV[ stat_idx ] = e->cost;  break;
+            }
+            
+            e->featMinV[ stat_idx ] = e->statsA[i].min;
+            e->featMaxV[ stat_idx ] = e->statsA[i].max;
+            
+          }
+        }
+
+    }
+
+
+    rc_t _read_meas_stats( score_t* p, csv::handle_t csvH, event_t* e )
+    {
+      rc_t rc;
+      
+      if((rc = getv(csvH,                    
+                    "even_min",  e->statsA[ perf_meas::kEvenValIdx ].min,
+                    "even_max",  e->statsA[ perf_meas::kEvenValIdx ].max,
+                    "even_mean", e->statsA[ perf_meas::kEvenValIdx ].mean,
+                    "even_std",  e->statsA[ perf_meas::kEvenValIdx ].std,
+                    "dyn_min",   e->statsA[ perf_meas::kDynValIdx ].min,
+                    "dyn_max",   e->statsA[ perf_meas::kDynValIdx ].max,
+                    "dyn_mean",  e->statsA[ perf_meas::kDynValIdx ].mean,
+                    "dyn_std",   e->statsA[ perf_meas::kDynValIdx ].std,
+                    "tempo_min", e->statsA[ perf_meas::kTempoValIdx ].min,
+                    "tempo_max", e->statsA[ perf_meas::kTempoValIdx ].max,
+                    "tempo_mean",e->statsA[ perf_meas::kTempoValIdx ].mean,
+                    "tempo_std", e->statsA[ perf_meas::kTempoValIdx ].std,
+                    "cost_min",  e->statsA[ perf_meas::kMatchCostValIdx ].min,
+                    "cost_max",  e->statsA[ perf_meas::kMatchCostValIdx ].max,
+                    "cost_mean", e->statsA[ perf_meas::kMatchCostValIdx ].mean,
+                    "cost_std",  e->statsA[ perf_meas::kMatchCostValIdx ].std )) != kOkRC )
+      {
+        rc = cwLogError(rc,"Error parsing CSV meas. stats field.");
+        goto errLabel;        
+      }
+
+      e->statsA[ perf_meas::kEvenValIdx ].id     = perf_meas::kEvenValIdx;
+      e->statsA[ perf_meas::kDynValIdx ].id       = perf_meas::kDynValIdx;
+      e->statsA[ perf_meas::kTempoValIdx ].id     = perf_meas::kTempoValIdx;
+      e->statsA[ perf_meas::kMatchCostValIdx ].id = perf_meas::kMatchCostValIdx;
+
+    errLabel:
+      
+      return rc;
+    }
 
     rc_t _read_csv_line( score_t* p,  bool score_fl, csv::handle_t csvH )
     {
@@ -123,6 +149,7 @@ namespace cw
       event_t* e  = mem::allocZ<event_t>();
       const char* sci_pitch;
       unsigned sci_pitch_char_cnt;
+      int has_stats_fl = 0;
         
       if((rc = getv(csvH,
                     "meas",e->meas,
@@ -133,12 +160,21 @@ namespace cw
                     "d0", e->d0,
                     "d1", e->d1,
                     "bar", e->bar,
-                    "section", e->section )) != kOkRC )
+                    "section", e->section)) != kOkRC )
       {
         rc = cwLogError(rc,"Error parsing CSV.");
         goto errLabel;
       }
 
+      if( has_field(csvH,"has_stats_fl") )
+        if((rc = getv(csvH,"has_stats_fl",has_stats_fl)) != kOkRC )
+        {
+          rc = cwLogError(rc,"Error parsing optional fields.");
+          goto errLabel;
+        }
+      
+      e->valid_stats_fl = has_stats_fl;
+      
       if( score_fl )
       {
         if((rc = getv(csvH,"oloc",e->loc )) != kOkRC )
@@ -147,18 +183,27 @@ namespace cw
           goto errLabel;
         }
 
+        if( e->section > 0 && has_stats_fl )
+          if((rc = _read_meas_stats(p,csvH,e)) != kOkRC )
+            goto errLabel;
+        
       }
       else
       {
         if((rc = getv(csvH,
-                    "even", e->even,
+                      "even", e->even,
-                    "dyn", e->dyn,
+                      "dyn", e->dyn,
-                    "tempo", e->tempo,
+                      "tempo", e->tempo,
-                    "cost", e->cost )) != kOkRC )
+                      "cost", e->cost)) != kOkRC )
         {
           rc = cwLogError(rc,"Error parsing CSV.");
           goto errLabel;
         }
+
+        if( has_stats_fl )
+          if((rc = _read_meas_stats(p,csvH,e)) != kOkRC )
+            goto errLabel;
+          
       }
 
       if((rc = field_char_count( csvH, title_col_index(csvH,"sci_pitch"), sci_pitch_char_cnt )) != kOkRC )
@@ -203,16 +248,6 @@ namespace cw
       csv::handle_t csvH;
       rc_t        rc       = kOkRC;
       bool        score_fl = false;
-      /*
-      //unsigned    titleN   = sizeof(col_map_array)/sizeof(col_map_array[0]);
-      //const char* titleA[ titleN ];
-
-      for(unsigned i=0; i<titleN; ++i)
-      {
-        titleA[i] = col_map_array[i].label;
-        assert( col_map_array[i].colId == i );
-      }
-      */
       
       if((rc = csv::create(csvH,csvFname)) != kOkRC )
       {
@@ -220,21 +255,12 @@ namespace cw
         goto errLabel;
       }
 
+      // Distinguish between the score file which has
+      // an 'oloc' field and the recorded performance
+      // files which do not.
       if( title_col_index(csvH,"oloc") != kInvalidIdx )
         score_fl = true;
 
-      /*
-      for(unsigned i=0; i<titleN; ++i)
-        if( col_map_array[i].enableFl )
-        {
-          if((col_map_array[i].colIdx = title_col_index(csvH,col_map_array[i].label)) == kInvalidIdx )
-          {
-            rc = cwLogError(rc,"The performance score column '%s' was not found in the score file:'%s'.",col_map_array[i].label,cwStringNullGuard(csvFname));
-            goto errLabel;
-          }
-        }
-      */
-      
       for(unsigned i=0; (rc = next_line(csvH)) == kOkRC; ++i )
         if((rc = _read_csv_line(p,score_fl,csvH)) != kOkRC )
         {
@@ -273,255 +299,6 @@ namespace cw
         
     }
     
-    /*
-    unsigned _scan_to_end_of_field( const char* lineBuf, unsigned buf_idx, unsigned bufCharCnt )
-    {
-      for(; buf_idx < bufCharCnt; ++buf_idx )
-      {
-        if( lineBuf[buf_idx] == '"' )
-        {
-          for(++buf_idx; buf_idx < bufCharCnt; ++buf_idx)
-            if( lineBuf[buf_idx] == '"' )
-              break;
-        }
-
-        if( lineBuf[buf_idx] == ',')
-          break;
-      }
-
-      return buf_idx;
-    }
-
-    rc_t  _parse_csv_string( const char* lineBuf, unsigned bfi, unsigned efi, char* val, unsigned valCharN )
-    {
-      unsigned n = std::min(efi-bfi,valCharN);
-      strncpy(val,lineBuf+bfi,n);
-      val[std::min(n,valCharN-1)] = 0;
-      return kOkRC;
-    }
-        
-    rc_t  _parse_csv_double( const char* lineBuf, unsigned bfi, unsigned efi, double &valueRef )
-    {
-      errno = 0;
-      valueRef = strtod(lineBuf+bfi,nullptr);
-      if( errno != 0 )
-        return cwLogError(kOpFailRC,"CSV String to number conversion failed.");
-
-      return kOkRC;
-    }
-
-    rc_t  _parse_csv_unsigned( const char* lineBuf, unsigned bfi, unsigned efi, unsigned &valueRef )
-    {
-      rc_t rc;
-      double v;
-      if((rc = _parse_csv_double(lineBuf,bfi,efi,v)) == kOkRC )
-        valueRef = (unsigned)v;
-      return rc;
-    }
-    
-    rc_t _parse_csv_line( score_t* p, event_t* e, char* line_buf, unsigned lineBufCharCnt )
-    {
-      enum
-      {
-        kMeas_FIdx,
-        kIndex_FIdx,
-        kVoice_FIdx,
-        kLoc_FIdx,
-        kTick_FIdx,
-        kSec_FIdx,
-        kDur_FIdx,
-        kRval_FIdx,
-        kDots_FIdx,
-        kSPitch_FIdx,
-        kDMark_FIdx,
-        kDLevel_FIdx,
-        kStatus_FIdx,
-        kD0_FIdx,
-        kD1_FIdx,
-        kBar_FIdx,
-        kSection_FIdx,
-        kBpm_FIdx,
-        kGrace_FIdx,
-        kPedal_FIdx,
-        kEven_FIdx,
-        kDyn_FIdx,
-        kTempo_FIdx,
-        kCost_FIdx,
-        kMax_FIdx
-      };
-
-      rc_t     rc        = kOkRC;
-      unsigned bfi       = 0; 
-      unsigned efi       = 0;
-      unsigned field_idx = 0;
-
-
-      for(field_idx=0; field_idx != kMax_FIdx; ++field_idx)
-      {        
-        if((efi = _scan_to_end_of_field(line_buf,efi,lineBufCharCnt)) == kInvalidIdx )
-        {
-          rc = cwLogError( rc, "End of field scan failed");
-          goto errLabel;          
-        }
-
-        if( bfi != efi )
-        {
-          switch( field_idx )
-          {
-            case kMeas_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->meas );
-              break;
-              
-            case kLoc_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->loc );
-              break;
-            
-            case kSec_FIdx:
-              rc = _parse_csv_double( line_buf, bfi, efi, e->sec );
-              break;
-            
-            case kStatus_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->status );
-              break;
-            
-            case kD0_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->d0 );
-              break;
-            
-            case kD1_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->d1 );
-              break;
-
-            case kBar_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->bar );
-              break;
-
-            case kSection_FIdx:
-              rc = _parse_csv_unsigned( line_buf, bfi, efi, e->section );
-              break;
-
-            case kSPitch_FIdx:
-              rc = _parse_csv_string( line_buf, bfi, efi, e->sci_pitch, sizeof(e->sci_pitch) );              
-              break;
-
-            case kEven_FIdx:
-              e->even = INVALID_PERF_MEAS;
-              if( efi > bfi+1 )
-                rc = _parse_csv_double( line_buf, bfi, efi, e->even );
-              break;
-              
-            case kDyn_FIdx:
-              e->dyn = INVALID_PERF_MEAS;
-              if( efi > bfi+1 )
-                rc = _parse_csv_double( line_buf, bfi, efi, e->dyn );
-              break;
-              
-            case kTempo_FIdx:
-              e->tempo = INVALID_PERF_MEAS;
-              if( efi > bfi+1 )
-                rc = _parse_csv_double( line_buf, bfi, efi, e->tempo );
-              break;
-              
-            case kCost_FIdx:
-              e->cost = INVALID_PERF_MEAS;
-              if( efi > bfi+1 )
-                rc = _parse_csv_double( line_buf, bfi, efi, e->cost );
-              break;
-              
-            default:
-              break;
-          }
-        }
-        
-        bfi = efi + 1;
-        efi = efi + 1;
-        
-      }
-
-    errLabel:
-
-      return rc;      
-    }
-
-    
-    rc_t _parse_csv( score_t* p, const char* fn )
-    {
-      rc_t rc;
-      file::handle_t fH;
-      unsigned       line_count     = 0;
-      char*          lineBufPtr     = nullptr;
-      unsigned       lineBufCharCnt = 0;
-      event_t*       e              = nullptr;
-      
-      if((rc = file::open( fH, fn, file::kReadFl )) != kOkRC )
-      {
-        rc = cwLogError( rc, "Piano score file open failed on '%s'.",cwStringNullGuard(fn));
-        goto errLabel;
-      }
-
-      if((rc = file::lineCount(fH,&line_count)) != kOkRC )
-      {
-        rc = cwLogError( rc, "Line count query failed on '%s'.",cwStringNullGuard(fn));
-        goto errLabel;
-      }
-
-      p->min_uid = kInvalidId;
-      p->uid_mapN = 0;
-      
-      for(unsigned line=0; line<line_count; ++line)
-      {
-        if((rc = getLineAuto( fH, &lineBufPtr, &lineBufCharCnt )) != kOkRC )
-        {
-          if( rc != kEofRC )
-            rc = cwLogError( rc, "Line read failed on '%s' line number '%i'.",cwStringNullGuard(fn),line+1);
-          else
-            rc = kOkRC;
-          
-          goto errLabel;
-        }
-
-        if( line > 0 ) // skip column title line
-        {
-
-          e = mem::allocZ<event_t>();
-          
-          if((rc = _parse_csv_line( p, e, lineBufPtr, lineBufCharCnt )) != kOkRC )
-          {
-            mem::release(e);
-            rc = cwLogError( rc, "Line parse failed on '%s' line number '%i'.",cwStringNullGuard(fn),line+1);
-            goto errLabel;            
-          }
-
-          // assign the UID
-          e->uid = line;          
-        
-          // link the event into the event list
-          if( p->end != nullptr )
-            p->end->link = e;
-          else
-            p->base = e;
-        
-          p->end  = e;
-
-          // track the max 'loc' id
-          if( e->loc > p->maxLocId )
-            p->maxLocId = e->loc;
-
-          if( p->min_uid == kInvalidId || e->uid < p->min_uid )
-            p->min_uid = e->uid;
-
-          p->uid_mapN += 1;        
-        }
-      
-      }
-
-    errLabel:
-      mem::release(lineBufPtr);
-      file::close(fH);
-        
-      return rc;
-    }
-    */
     rc_t _parse_event_list( score_t* p, const object_t* cfg )
     {
       rc_t            rc;
@@ -574,16 +351,6 @@ namespace cw
           textCopy( e->sci_pitch,sizeof(e->sci_pitch),sci_pitch);
           textCopy( e->dmark,sizeof(e->dmark),dmark);
           textCopy( e->grace_mark, sizeof(e->grace_mark),grace_mark);
-          /*
-          if( sci_pitch != nullptr )
-            strncpy(e->sci_pitch,sci_pitch,sizeof(e->sci_pitch)-1);
-          
-          if( dmark != nullptr )
-            strncpy(e->dmark,dmark,sizeof(e->dmark)-1);
-
-          if( grace_mark != nullptr )
-            strncpy(e->grace_mark,grace_mark,sizeof(e->grace_mark)-1);
-          */
           
           // assign the UID
           e->uid = i;          
@@ -699,7 +466,6 @@ cw::rc_t cw::perf_score::create( handle_t& hRef, const char* fn )
 
   if( _does_file_have_loc_info(fn) )
   {
-    // if((rc = _parse_csv(p,fn)) != kOkRC )
     if((rc = _read_csv( p, fn )) != kOkRC )
       goto errLabel;
 
@@ -715,6 +481,8 @@ cw::rc_t cw::perf_score::create( handle_t& hRef, const char* fn )
     p->has_locs_fl = false;    
   }
 
+  _setup_feat_vectors(p);
+    
   hRef.set(p);
 
  errLabel:  
@@ -874,6 +642,8 @@ cw::rc_t cw::perf_score::test( const object_t* cfg )
     goto errLabel;
   }
 
+  cwLogInfo("Creating score from '%s'.",cwStringNullGuard(fname));
+  
   if((rc = create( h, fname )) != kOkRC )
   {
     rc = cwLogError(rc,"Score create failed.");

cwPianoScore.h

@@ -7,6 +7,15 @@ namespace cw
   {
     typedef handle<struct score_str> handle_t;
 
+    typedef struct stats_str
+    {
+      unsigned id;   // see: perf_meas::k???VarIdx
+      double min;
+      double max;
+      double mean;
+      double std;      
+    } stats_t;
+
     typedef struct event_str
     {
       unsigned uid;           // unique id for this event
@@ -28,11 +37,18 @@ namespace cw
       unsigned barPitchIdx;   // bar pitch index or 0 
       unsigned section;       // section number or 0
 
+      bool    valid_stats_fl; // is statsA valid in this record[]
+      stats_t statsA[ perf_meas::kValCnt ];
+      
       double   even;
       double   dyn;
       double   tempo;
       double   cost;
 
+      double featV[    perf_meas::kValCnt ];
+      double featMinV[ perf_meas::kValCnt ];
+      double featMaxV[ perf_meas::kValCnt ];
+      
       struct event_str* link; // list link
     } event_t;
         

cwPresetSel.cpp

@@ -6,13 +6,18 @@
 #include "cwObject.h"
 #include "cwTime.h"
 #include "cwVectOps.h"
+#include "cwFlowDecl.h"
 #include "cwPresetSel.h"
 #include "cwFile.h"
-#include "cwPianoScore.h"
+
 #include "cwMidi.h"
 #include "cwDynRefTbl.h"
 #include "cwScoreParse.h"
 #include "cwSfScore.h"
+#include "cwPerfMeas.h"
+
+#include "cwPianoScore.h"
+
 
 namespace cw
 {
@@ -872,7 +877,7 @@ cw::rc_t cw::preset_sel::create(  handle_t& hRef, const object_t* cfg  )
   }
 
 
-  // allocate the label array
+  // allocate the alt label array
   p->altLabelN = alt_labelL->child_count() + 1;
   p->altLabelA = mem::allocZ<alt_label_t>(p->altLabelN);
 
@@ -953,6 +958,25 @@ const char* cw::preset_sel::alt_label( handle_t h, unsigned alt_idx )
   return _alt_index_to_label(p,alt_idx);
 }
 
+void cw::preset_sel::get_loc_range( handle_t h, unsigned& minLocRef, unsigned& maxLocRef )
+{
+  preset_sel_t* p = _handleToPtr(h);
+
+  if( p->fragL == nullptr )
+  {
+    minLocRef = score_parse::kInvalidLocId;
+    maxLocRef = score_parse::kInvalidLocId;
+  }
+  else
+  {
+    minLocRef = 1;
+
+    for(const frag_t* f = p->fragL; f!=nullptr; f=f->link)
+      maxLocRef = f->endLoc;
+  }
+}
+
+
 unsigned cw::preset_sel::fragment_count( handle_t h )
 {
   preset_sel_t* p = _handleToPtr(h);
@@ -1041,7 +1065,6 @@ cw::rc_t cw::preset_sel::create_fragment( handle_t h, unsigned end_loc, time::sp
   // set the return value
   fragIdRef        = f->fragId;
 
-
   // intiialize the preset array elements
   for(unsigned i=0; i<p->presetLabelN; ++i)
   {
@@ -1127,6 +1150,7 @@ cw::rc_t cw::preset_sel::delete_fragment( handle_t h, unsigned fragId )
 
       // release the fragment
       mem::release(f->presetA);
+      mem::release(f->multiPresetA);
       mem::release(f);
       
       return kOkRC;
@@ -1477,7 +1501,6 @@ cw::rc_t cw::preset_sel::write( handle_t h, const char* fn )
   }
 
   newPairObject("fragL",             fragL_obj,              root);
-  newPairObject("fragN",             fragN,                  root);
   newPairObject("masterWetInGain",   p->master_wet_in_gain,  root );
   newPairObject("masterWetOutGain",  p->master_wet_out_gain, root );
   newPairObject("masterDryGain",     p->master_dry_gain,     root );
@@ -1515,7 +1538,6 @@ cw::rc_t cw::preset_sel::read( handle_t h, const char* fn )
   rc_t            rc    = kOkRC;
   preset_sel_t*   p     = _handleToPtr(h);  
   object_t*       root  = nullptr;
-  unsigned        fragN = 0;
   const object_t* fragL_obj = nullptr;
 
   // parse the preset  file
@@ -1529,8 +1551,7 @@ cw::rc_t cw::preset_sel::read( handle_t h, const char* fn )
   _destroy_all_frags(p);
 
   // parse the root level
-  if((rc = root->getv( "fragN",            fragN,
+  if((rc = root->getv( "fragL",            fragL_obj,
-                       "fragL",            fragL_obj,
                        "masterWetInGain",  p->master_wet_in_gain,
                        "masterWetOutGain", p->master_wet_out_gain,
                        "masterDryGain",    p->master_dry_gain,
@@ -1540,13 +1561,14 @@ cw::rc_t cw::preset_sel::read( handle_t h, const char* fn )
     goto errLabel;
   }
 
+
   // for each fragment
-  for(unsigned i=0; i<fragN; ++i)
+  for(unsigned i=0; i<fragL_obj->child_count(); ++i)
   {
     frag_t* f = nullptr;
     const object_t* r = fragL_obj->child_ele(i);
 
-    unsigned fragId=kInvalidId,endLoc=0,presetN=0,begPlayLoc=0,endPlayLoc=0;
+    unsigned fragId=kInvalidId,endLoc=0,presetN=0,multiPresetN=0,begPlayLoc=0,endPlayLoc=0;
     double igain=0,ogain=0,wetDryGain=0,fadeOutMs=0;
     const char* note = nullptr;
     const object_t* presetL_obj = nullptr;
@@ -1627,6 +1649,9 @@ cw::rc_t cw::preset_sel::read( handle_t h, const char* fn )
         goto errLabel;
       }
 
+      if( order > 0 || playFl )
+        multiPresetN += 1;
+
       f->presetA[ preset_idx ].order     = order;
       f->presetA[ preset_idx ].alt_str   = mem::duplStr(alt_str);
       f->presetA[ preset_idx ].playFl    = playFl;
@@ -1638,6 +1663,32 @@ cw::rc_t cw::preset_sel::read( handle_t h, const char* fn )
       
     }
 
+    // create the multiPresetA[]
+    if( multiPresetN>0 )
+    {
+      f->multiPresetA = mem::allocZ<flow::preset_order_t>(multiPresetN);
+      f->multiPresetN = multiPresetN;
+
+      for(unsigned i=0,j=1; i<presetN; ++i)
+        if( f->presetA[i].order > 0 || f->presetA[i].playFl )
+        {
+          unsigned out_idx = f->presetA[i].playFl ? 0 : j++;
+
+          assert( out_idx < multiPresetN );
+          
+          f->multiPresetA[out_idx].preset_label = _preset_label( p, f->presetA[i].preset_idx );
+          f->multiPresetA[out_idx].order        = f->presetA[i].order;
+        }
+
+      // sort
+      if( multiPresetN > 1 )
+      {
+        std::sort(f->multiPresetA+1,
+                  f->multiPresetA+f->multiPresetN-1,
+                  [](const flow::preset_order_t& a,const flow::preset_order_t& b){ return a.order<b.order; } );
+      }
+    }
+
   }
   
 
@@ -1691,7 +1742,14 @@ cw::rc_t cw::preset_sel::report_presets( handle_t h )
   return rc;
 }
 
+cw::rc_t cw::preset_sel::translate_frags( const object_t* cfg )
+{
+  return cwLogError(kNotImplementedRC,"translate_frags() is not implemented.");
+}
 
+
+#undef NOT_DEF
+#ifdef NOT_DEF
 cw::rc_t cw::preset_sel::translate_frags( const object_t* cfg )
 {
   rc_t                  rc              = kOkRC;
@@ -1918,4 +1976,4 @@ cw::rc_t cw::preset_sel::translate_frags( const object_t* cfg )
   
   return rc;
 }
-
+#endif

cwPresetSel.h

@@ -13,8 +13,8 @@ namespace cw
       bool     playFl;      // play this preset
       bool     seqFl;       // play this preset during sequencing.
       unsigned preset_idx;  // preset index into preset_labelA[].
-      unsigned order;       //
+      unsigned order;       // selection label
-      char*    alt_str;
+      char*    alt_str;     // 'alt' label   
     } preset_t;
 
     typedef struct frag_str
@@ -35,6 +35,9 @@ namespace cw
       preset_t*        presetA;  // presetA[ presetN ] - status of each preset
       unsigned         presetN;
 
+      flow::preset_order_t*  multiPresetA;  // array of active presets in this frag. sequenced by ascending 'order'.
+      unsigned               multiPresetN;
+
       unsigned*        altPresetIdxA;  // altPresetIdxA[ alt_count() ] selected preset idx for each alt.
 
       bool             uiSelectFl;
@@ -81,6 +84,8 @@ namespace cw
     unsigned    alt_count( handle_t h );
     const char* alt_label( handle_t h, unsigned alt_idx );
 
+    void get_loc_range( handle_t h, unsigned& minLocRef, unsigned& maxLocRef );
+        
     unsigned      fragment_count(    handle_t h );
     const frag_t* get_fragment_base( handle_t h );
     const frag_t* get_fragment(      handle_t h, unsigned fragId );

cwScoreFollowTest.cpp

@@ -290,7 +290,7 @@ namespace cw
     rc_t _gen_synced_perf_files( test_t* p,
                                  sfscore::handle_t        scoreH,
                                  score_follower::handle_t sfH,
-                                 perf_meas::handle_t      perfMeasH )
+                                 perf_meas::handle_t      perfMeasH)
     {
       rc_t            rc        = kOkRC;
       const object_t* jobL      = nullptr;
@@ -345,6 +345,9 @@ namespace cw
           unsigned  end_loc              = kInvalidId;
           bool      skip_score_follow_fl = false;
 
+
+          cwLogInfo("\nProcessing:%s",cwStringNullGuard(dirEntryArray[i].name));
+          
           // read the meta object
           if((rc = objectFromFile( meta_fname, meta_obj)) != kOkRC )
             rc = cwLogError(rc,"An object could not be formed from the meta data file '%s'.",cwStringNullGuard(meta_fname));
@@ -365,7 +368,7 @@ namespace cw
                                                   p->srate,
                                                   p->print_rt_events_fl,
                                                   false,
-                                                  sync_perf_fname)) != kOkRC )
+                                                  sync_perf_fname )) != kOkRC )
                 {
                   rc = cwLogError(rc,"The score follower failed on '%s'. Consider setting the 'skip_score_follow_fl' in '%s'.",cwStringNullGuard(midi_fname),cwStringNullGuard(meta_fname));
                 }

cwScoreFollower.cpp

@@ -121,6 +121,21 @@ namespace cw
       return rc;
     }
 
+    bool _processPedal(const char* pedalLabel, unsigned barNumb, bool curPedalDownStateFl, uint8_t d1)
+    {
+      bool newStateFl = midi::isPedalDown(d1);
+      /*
+      if( newStateFl == curPedalDownStateFl )
+      {
+        const char* upDownLabel = newStateFl ? "down" : "up";
+        cwLogWarning("Double %s pedal %s in bar number:%i.",pedalLabel,upDownLabel,barNumb);
+      }
+      */
+      
+      return newStateFl;
+    }
+    
+
     rc_t _destroy( score_follower_t* p)
     {
       destroy(p->dynRefH);
@@ -576,10 +591,14 @@ cw::rc_t cw::score_follower::midi_state_rt_report( handle_t h, const char* out_f
 
 cw::rc_t cw::score_follower::write_sync_perf_csv( handle_t h, const char* out_fname,  const midi::file::trackMsg_t** msgA, unsigned msgN )
 {
-  score_follower_t* p       = _handleToPtr(h);  
+  score_follower_t* p               = _handleToPtr(h);  
-  rc_t              rc      = kOkRC;
+  rc_t              rc              = kOkRC;
-  unsigned          resultN = result_count(p->trackH);
+  unsigned          resultN         = result_count(p->trackH);
-  auto              resultA = result_base(p->trackH);
+  auto              resultA         = result_base(p->trackH);
+  bool              dampPedalDownFl = false;
+  bool              sostPedalDownFl = false;
+  bool              softPedalDownFl = false;
+  unsigned          curBarNumb          = 1;
   file::handle_t    fH;
 
   if( msgN == 0 )
@@ -602,7 +621,7 @@ cw::rc_t cw::score_follower::write_sync_perf_csv( handle_t h, const char* out_fn
   }
 
   // write the header line
-  file::printf(fH,"meas,index,voice,loc,tick,sec,dur,rval,dots,sci_pitch,dmark,dlevel,status,d0,d1,bar,section,bpm,grace,pedal\n");
+  file::printf(fH,"meas,index,voice,loc,tick,sec,dur,rval,dots,sci_pitch,dmark,dlevel,status,d0,d1,bar,section,bpm,grace,damp_down_fl,soft_down_fl,sost_down_fl\n");
       
   for(unsigned i=0; i<msgN; ++i)
   {
@@ -616,35 +635,73 @@ cw::rc_t cw::score_follower::write_sync_perf_csv( handle_t h, const char* out_fn
       uint8_t d0 = m->u.chMsgPtr->d0;
       uint8_t d1 = m->u.chMsgPtr->d1;
 
+          
       if(  midi::isNoteOn(m->status,d1) )
       {        
-        const unsigned INVALID_LOC = 0;
+        unsigned    bar           = 0;
-        
+        const char* sectionLabel  = "";
+        unsigned    loc           = score_parse::kInvalidLocId;
+        unsigned    dlevel        = -1;
         char sciPitch[ midi::kMidiSciPitchCharCnt + 1 ];
-        unsigned bar = 0;
-        midi::midiToSciPitch( d0, sciPitch, midi::kMidiSciPitchCharCnt );
-        unsigned loc = INVALID_LOC;
         
+        midi::midiToSciPitch( d0, sciPitch, midi::kMidiSciPitchCharCnt );
+
+        // locate score matching record for this performed note
         for(unsigned i=0; i<resultN; ++i)
         {
+          const sfscore::event_t* e;
           // FIX THIS:
           // THE perfA[] INDEX IS STORED IN resultA[i].muid
+          // this isn't right.
           assert( resultA[i].muid != kInvalidIdx && resultA[i].muid < p->perfN );
           
-          if( p->perfA[resultA[i].muid].muid == m->uid )
+          if( p->perfA[resultA[i].muid].muid == m->uid && resultA[i].scEvtIdx != kInvalidIdx)
           {
             assert( resultA[i].pitch == d0 );
-            loc = resultA[i].oLocId == kInvalidId ? INVALID_LOC : resultA[i].oLocId;
+
+            if((e = event( p->scoreH, resultA[i].scEvtIdx )) == nullptr )
+            {
+              cwLogError(kInvalidStateRC,"The performed, and matched, note with muid %i does not have a valid score event index.",m->uid);
+              goto errLabel;
+            }
+
+            bar          = e->barNumb;
+            sectionLabel = e->section != nullptr ? e->section->label : "";
+            curBarNumb   = std::max(bar,curBarNumb);
+            dlevel       = e->dynLevel;
+            loc          = resultA[i].oLocId == kInvalidId ? score_parse::kInvalidLocId : resultA[i].oLocId;
             break;
           }
         }
 
-        rc = file::printf(fH, "%i,%i,%i,%i,0,%f,0.0,0.0,0,%s,,,%i,%i,%i,,,,,\n",
+       
-                          bar,i,1,loc,secs,sciPitch,m->status,d0,d1);
+        
+        rc = file::printf(fH, "%i,%i,%i,%i,0,%f,0.0,0.0,0,%s,,%i,%i,%i,%i,,%s,,,%i,%i,%i\n",
+                          bar,i,1,loc,secs,sciPitch,dlevel,m->status,d0,d1,sectionLabel,dampPedalDownFl,softPedalDownFl,sostPedalDownFl);
       }        
       else
       {
-        rc = file::printf(fH, ",%i,,,%i,%f,,,,,,,%i,%i,%i,,,,,\n",i,0,secs,m->status,d0,d1);
+
+        if( midi::isPedal(m->status,d0) )
+        {
+          switch( d0 )
+          {
+            case midi::kSustainCtlMdId:
+              dampPedalDownFl = _processPedal("damper",curBarNumb,dampPedalDownFl,d1);
+              break;
+              
+            case midi::kSostenutoCtlMdId:
+              sostPedalDownFl = _processPedal("sostenuto",curBarNumb,sostPedalDownFl,d1);
+              break;
+                
+            case midi::kSoftPedalCtlMdId:
+              softPedalDownFl = _processPedal("soft",curBarNumb,softPedalDownFl,d1);
+              break;
+          }  
+        }
+        
+        rc = file::printf(fH, ",%i,,,%i,%f,,,,,,,%i,%i,%i,,,,,%i,%i,%i\n",i,0,secs,m->status,d0,d1,dampPedalDownFl,softPedalDownFl,sostPedalDownFl);
+        
       }
     }
         

cwScoreParse.cpp

@@ -163,6 +163,38 @@ namespace cw
       return s;
     }
 
+    rc_t _parse_section_stats( score_parse_t* p, csv::handle_t csvH, event_t* e )
+    {
+      rc_t rc;
+      
+      if((rc = getv(csvH,
+                    "even_min",  e->section->statsA[ kEvenStatIdx ].min,
+                    "even_max",  e->section->statsA[ kEvenStatIdx ].max,
+                    "even_mean", e->section->statsA[ kEvenStatIdx ].mean,
+                    "even_std",  e->section->statsA[ kEvenStatIdx ].std,
+                    "dyn_min",   e->section->statsA[ kDynStatIdx ].min,
+                    "dyn_max",   e->section->statsA[ kDynStatIdx ].max,
+                    "dyn_mean",  e->section->statsA[ kDynStatIdx ].mean,
+                    "dyn_std",   e->section->statsA[ kDynStatIdx ].std,
+                    "tempo_min", e->section->statsA[ kTempoStatIdx ].min,
+                    "tempo_max", e->section->statsA[ kTempoStatIdx ].max,
+                    "tempo_mean",e->section->statsA[ kTempoStatIdx ].mean,
+                    "tempo_std", e->section->statsA[ kTempoStatIdx ].std,
+                    "cost_min",  e->section->statsA[ kCostStatIdx ].min,
+                    "cost_max",  e->section->statsA[ kCostStatIdx ].max,
+                    "cost_mean", e->section->statsA[ kCostStatIdx ].mean,
+                    "cost_std",  e->section->statsA[ kCostStatIdx ].std )) != kOkRC )
+      {
+        rc = cwLogError(rc,"Error parsing CSV meas. stats field.");
+        goto errLabel;        
+      }
+
+    errLabel:
+      
+      return rc;
+    }
+
+    
     rc_t _parse_section_row( score_parse_t* p, csv::handle_t csvH, event_t* e  )
     {
       rc_t rc;
@@ -180,6 +212,9 @@ namespace cw
         goto errLabel;
       }
 
+      //if((rc = _parse_section_stats(p,csvH,e)) != kOkRC )
+      //  goto errLabel;        
+
       e->section->csvRowNumb = e->csvRowNumb;
       
     errLabel:

cwScoreParse.h

@@ -2,6 +2,11 @@ namespace cw
 {
   namespace score_parse
   {
+
+    enum {
+      kInvalidLocId = 0
+    };
+    
     enum {
       kInvalidTId,
       kBarTId,
@@ -43,8 +48,26 @@ namespace cw
       kVarCnt
     };
 
+    typedef enum {
+      kDynStatIdx,
+      kEvenStatIdx,
+      kTempoStatIdx,
+      kCostStatIdx,
+      kStatCnt
+    } stats_idx_t;
+
     struct set_str;
     struct event_str;
+
+    typedef struct stats_str
+    {
+      stats_idx_t id;   
+      double min;
+      double max;
+      double mean;
+      double std;      
+    } stats_t;
+    
     typedef struct section_str
     {
       char*               label;       // This sections label
@@ -55,6 +78,9 @@ namespace cw
       struct event_str*   endEvent;    // last event in this section
       struct event_str*   begSetEvent; // first set event in this section
       struct event_str*   endSetEvent; // last set event in this section
+      
+      stats_t             statsA[ kStatCnt ];
+      
       struct section_str* link;        // p->sectionL links
     } section_t;
 

cwSerialPortSrv.cpp

@@ -92,7 +92,7 @@ cw::rc_t cw::serialPortSrv::create( handle_t& h, unsigned pollPeriodMs, unsigned
   if((rc = serialPort::create( p->mgrH, recvBufByteN)) != kOkRC )
       goto errLabel;
 
-  if((rc = thread::create( p->threadH, threadCallback, p)) != kOkRC )
+  if((rc = thread::create( p->threadH, threadCallback, p, "serial_srv")) != kOkRC )
     goto errLabel;
 
   p->pollPeriodMs = pollPeriodMs;

cwSfScore.cpp

@@ -243,6 +243,20 @@ namespace cw
       return rc;
     }
 
+    rc_t _assign_section_to_events( sfscore_t* p )
+    {
+      for(unsigned si=0,ei=0; si<p->sectionN ; ++si)
+      {
+        // the last event in a section is the event just prior to the first event in the next section
+        unsigned end_evt_idx = si>=p->sectionN-1 ? p->eventN : p->sectionA[si+1].begEvtIndex;
+        
+        for(; ei<end_evt_idx; ++ei)
+          p->eventA[ ei ].section = p->sectionA + si;
+        
+      }
+      return kOkRC;
+    }
+    
     rc_t _create_section_array( sfscore_t* p )
     {
       rc_t rc     = kOkRC;
@@ -785,6 +799,9 @@ namespace cw
       if((rc = _create_section_array( p )) != kOkRC )
         goto errLabel;
 
+      if((rc = _assign_section_to_events(p)) != kOkRC )
+        goto errLabel;
+
       if((rc = _create_set_array( p )) != kOkRC )
         goto errLabel;
 

cwSfScore.h

@@ -9,6 +9,8 @@ namespace cw
     struct loc_str;
     struct set_str;
 
+    typedef score_parse::stats_t stats_t;
+
     // The score can be divided into arbitrary non-overlapping sections.
     typedef struct section_str
     {
@@ -20,8 +22,7 @@ namespace cw
       unsigned         endEvtIndex;       // last element in this section
       unsigned         setCnt;            // Count of elements in setArray[]
       struct set_str** setArray;          // Ptrs to sets which are applied to this section.
-      
+      //stats_t          statsA[ score_parse::kStatCnt ];
-      //double           vars[  score_parse::kVarCnt ]; // Set to DBL_MAX by default.
     } section_t;
 
     typedef struct var_str
@@ -43,6 +44,7 @@ namespace cw
       unsigned     flags;        // Attribute flags for this event
       unsigned     dynLevel;     // Dynamcis value pppp to ffff (1 to 11) for this note.
       double       frac;         // Note's time value for tempo and non-grace evenness notes.
+      section_t*   section;      // The section to which this event belongs
       unsigned     barNumb;      // Bar id of the measure containing this event.
       unsigned     barNoteIdx;   // Index of this note in this bar
       unsigned     csvRowNumb;   // File row number (not index) from which this record originated

cwSfTrack.cpp

@@ -23,24 +23,24 @@ namespace cw
       callback_func_t      cbFunc;
       void*                cbArg;
       sfmatch::handle_t    matchH;
-      unsigned             mn;       // size of midiBuf[] 
+      unsigned             mn;       // length of midiBuf[]  
-      sfmatch::midi_t*     midiBuf;  // midiBuf[mn]
+      sfmatch::midi_t*     midiBuf;  // midiBuf[mn]   MIDI event window
 
-      result_t*            res;      // res[rn]
+      result_t*            res;      // res[rn] result buffer
       unsigned             rn;       // length of res[] (set to 2*score event count)
       unsigned             ri;       // next avail res[] recd.
 
       double               s_opt;          // 
       unsigned             missCnt;        // current count of consecutive trailing non-matches
-      unsigned             ili;            // index into loc[] to start scan following reset
+      unsigned             ili;            // index into sfmatch_t.loc[] to start scan following reset
-      unsigned             eli;            // index into loc[] of the last positive match. 
+      unsigned             eli;            // index into sfmatch_t.loc[] of the last positive match. 
-      unsigned             mni;            // current count of MIDI events since the last call to cmScMatcherReset()
+      unsigned             mni;            // current count of MIDI events since the last call to reset()
       unsigned             mbi;            // index of oldest MIDI event in midiBuf[]; stays at 0 when the buffer is full.
       unsigned             begSyncLocIdx;  // start of score window, in mp->loc[], of best match in previous scan
       unsigned             initHopCnt;     // max window hops during the initial (when the MIDI buffer fills for first time) sync scan 
-      unsigned             stepCnt;        // count of forward/backward score loc's to examine for a match during cmScMatcherStep().
+      unsigned             stepCnt;        // count of forward/backward score loc's to examine for a match during _step().
-      unsigned             maxMissCnt;     // max. number of consecutive non-matches during step prior to executing a scan.
+      unsigned             maxMissCnt;     // max. number of consecutive non-matches during step prior to executing a _scan().
-      unsigned             scanCnt;        // current count of times a resync-scan was executed during cmScMatcherStep()
+      unsigned             scanCnt;        // current count of times a resync-scan was executed during _step()
 
       unsigned             flags;
     } sftrack_t;

cwSfTrack.h

@@ -50,10 +50,12 @@ namespace cw
     // Notes:
     // The cwSfTrack maintains an internal cwSfMatch object which is used to attempt to find the
     // best match between the current MIDI active note buffer and the current score search area.
-    // 'scWndN' is used to set the cwSfMatch 'locN' argument.
+    //
-    // 'midiWndN' sets the length of the MIDI FIFO which is used to match to the score with
+    // 'scWndN' is used to set the cwSfMatch 'locN' argument. It defines the length of the
-    // each recceived MIDI note.
+    // score window over which the MIDI event window will slide, while searching for the best match.
-    // 'midiWndN' must be <= 'scWndN'.
+    //
+    // 'midiWndN' sets the length of the MIDI FIFO winodw which is used to match to the score with
+    // each recceived MIDI note.  'midiWndN' must be <= 'scWndN'.
 
     rc_t destroy( handle_t& hRef );
 

cwSocket.cpp

@@ -1211,7 +1211,7 @@ cw::rc_t cw::socksrv::createMgrSrv(  handle_t& hRef, unsigned timeOutMs, unsigne
     goto errLabel;
 
   // create the thread
-  if((rc = thread::create( p->thH, _threadFunc, p)) != kOkRC )
+  if((rc = thread::create( p->thH, _threadFunc, p, "sock")) != kOkRC )
     goto errLabel;
 
   p->timeOutMs = timeOutMs;

cwSvgMidi.cpp

@@ -7,6 +7,12 @@
 #include "cwTime.h"
 #include "cwMidi.h"
 #include "cwMidiFile.h"
+
+#include "cwDynRefTbl.h"
+#include "cwScoreParse.h"
+#include "cwSfScore.h"
+#include "cwPerfMeas.h"
+
 #include "cwPianoScore.h"
 #include "cwSvg.h"
 #include "cwMidiState.h"

cwSvgScoreFollow.cpp

@@ -7,13 +7,14 @@
 #include "cwTime.h"
 #include "cwMidi.h"
 #include "cwMidiFile.h"
-#include "cwPianoScore.h"
 #include "cwSvg.h"
 #include "cwDynRefTbl.h"
 #include "cwScoreParse.h"
 #include "cwSfScore.h"
 #include "cwSfMatch.h"
 #include "cwSfTrack.h"
+#include "cwPerfMeas.h"
+#include "cwPianoScore.h"
 
 #include "cwScoreFollowerPerf.h"
 #include "cwScoreFollower.h"

cwTcpSocketSrv.cpp

@@ -110,7 +110,7 @@ cw::rc_t cw::net::srv::create(
   if((rc = socket::create( p->sockH, port, flags, timeOutMs, remoteAddr, remotePort, localAddr )) != kOkRC )
     goto errLabel;
 
-  if((rc = thread::create( p->threadH, _threadFunc, p )) != kOkRC )
+  if((rc = thread::create( p->threadH, _threadFunc, p, "tcp_sock_srv" )) != kOkRC )
     goto errLabel;
 
   p->flags          = srvFlags;

cwTcpSocketTest.cpp

@@ -120,7 +120,7 @@ cw::rc_t cw::net::socket::test( portNumber_t localPort, const char* remoteAddr,
   if((rc = create(app.sockH,localPort, kBlockingFl,timeOutMs, NULL, kInvalidPortNumber )) != kOkRC )
     return rc;
 
-  if((rc = thread::create( app.threadH, _dgramThreadFunc, &app )) != kOkRC )
+  if((rc = thread::create( app.threadH, _dgramThreadFunc, &app, "tcp_sock_test_tcp" )) != kOkRC )
     goto errLabel;
 
   if((rc = thread::unpause( app.threadH )) != kOkRC )
@@ -176,7 +176,7 @@ cw::rc_t cw::net::socket::test_tcp( portNumber_t localPort, const char* remoteAd
     return rc;
 
   // create the listening thread (which is really only used by the server)
-  if((rc = thread::create( app.threadH, streamFl ? _tcpStreamThreadFunc : _dgramThreadFunc, &app )) != kOkRC )
+  if((rc = thread::create( app.threadH, streamFl ? _tcpStreamThreadFunc : _dgramThreadFunc, &app, "tcp_sock_test" )) != kOkRC )
     goto errLabel;
 
   // if this is a streaming client then connect to the server (which must have already been started)

cwThread.cpp

@@ -31,13 +31,14 @@ namespace cw
       unsigned  pauseMicros;
       unsigned  sleepMicros;
       pthread_attr_t attr;
+      char* label;
       
     } thread_t;
 
     inline thread_t* _handleToPtr(handle_t h) { return handleToPtr<handle_t,thread_t>(h); }
 
     // Called from client thread to wait for the internal thread to transition to a specified state.
-    rc_t _waitForState( thread_t* p, unsigned stateId )
+    rc_t _waitForState( thread_t* p, stateId_t stateId )
     {
       unsigned waitTimeMicroSecs = 0;
       stateId_t curStateId;
@@ -120,7 +121,7 @@ namespace cw
 }
 
 
-cw::rc_t cw::thread::create( handle_t& hRef, cbFunc_t func, void* funcArg, int stateMicros, int pauseMicros )
+cw::rc_t cw::thread::create( handle_t& hRef, cbFunc_t func, void* funcArg, const char* label, int stateMicros, int pauseMicros )
 {
   rc_t rc;
   int  sysRC;
@@ -136,6 +137,7 @@ cw::rc_t cw::thread::create( handle_t& hRef, cbFunc_t func, void* funcArg, int s
   p->pauseMicros = pauseMicros;
   p->stateId     = kPausedThId;
   p->sleepMicros = 15000;
+  p->label       = mem::duplStr(label);
 
   if((sysRC = pthread_attr_init(&p->attr)) != 0)
   {
@@ -143,6 +145,7 @@ cw::rc_t cw::thread::create( handle_t& hRef, cbFunc_t func, void* funcArg, int s
     rc = cwLogSysError(kOpFailRC,sysRC,"Thread attribute init failed.");
   }
   else
+  {
     /* 
 
     // Creating the thread in a detached state should prevent it from leaking memory when 
@@ -160,8 +163,17 @@ cw::rc_t cw::thread::create( handle_t& hRef, cbFunc_t func, void* funcArg, int s
         p->stateId = kNotInitThId;
         rc = cwLogSysError(kOpFailRC,sysRC,"Thread create failed.");
       }
+  }
+
+  if( label != nullptr )
+    pthread_setname_np(p->pThreadH, label);
+
   
   hRef.set(p);
+
+  
+  cwLogInfo("Thread %s id:%p created.",cwStringNullGuard(label), p->pThreadH);
+  
   return rc;
 }
   
@@ -180,16 +192,16 @@ cw::rc_t cw::thread::destroy( handle_t& hRef )
 
   // wait for the thread to exit and then deallocate the thread object
   if((rc = _waitForState(p,kExitedThId)) != kOkRC )
-    return  cwLogError(rc,"Thread timed out waiting for destroy.");
+    return  cwLogError(rc,"Thread '%s' timed out waiting for destroy.",p->label);
 
   // Block until the thread is actually fully cleaned up
   if((sysRC = pthread_join(p->pThreadH,NULL)) != 0)
-    rc = cwLogSysError(kOpFailRC,sysRC,"Thread join failed.");
+    rc = cwLogSysError(kOpFailRC,sysRC,"Thread '%s' join failed.",p->label);
       
   //if( pthread_attr_destroy(&p->attr) != 0 )
   //  rc = cwLogError(kOpFailRC,"Thread attribute destroy failed.");
     
-  
+  mem::release(p->label);
   mem::release(p);
   hRef.clear();
   
@@ -205,7 +217,7 @@ cw::rc_t cw::thread::pause( handle_t h, unsigned cmdFlags )
   thread_t* p          = _handleToPtr(h);
   stateId_t curStateId = p->stateId.load(std::memory_order_acquire);
   bool      isPausedFl = curStateId == kPausedThId;
-  unsigned  waitId;
+  stateId_t waitId;
  
   if( isPausedFl == pauseFl )
     return kOkRC;
@@ -225,7 +237,7 @@ cw::rc_t cw::thread::pause( handle_t h, unsigned cmdFlags )
     rc = _waitForState(p,waitId);
 
   if( rc != kOkRC )
-    cwLogError(rc,"Thread timed out waiting for '%s'.", pauseFl ? "pause" : "un-pause");
+    cwLogError(rc,"Thread '%s' timed out waiting for '%s'. pauseMicros:%i stateMicros:%i sleepMicros:%i", p->label, pauseFl ? "pause" : "un-pause",p->pauseMicros,p->stateMicros,p->sleepMicros);
   
   return rc;
   
@@ -256,6 +268,26 @@ cw::thread::thread_id_t cw::thread::id()
   return id.u.id;
 }
 
+const char* cw::thread::label( handle_t h )
+{
+  thread_t* p = _handleToPtr(h);
+  return p->label==nullptr ? "<no_thread_label>" : p->label;
+}
+
+
+unsigned cw::thread::stateTimeOutMicros( handle_t h)
+{
+  thread_t* p = _handleToPtr(h);
+  return p->stateMicros;
+}
+
+unsigned cw::thread::pauseMicros( handle_t h )
+{
+  thread_t* p = _handleToPtr(h);
+  return p->pauseMicros;
+}
+
+
 namespace cw
 {
   bool _threadTestCb( void* p )
@@ -273,7 +305,7 @@ cw::rc_t cw::threadTest()
   rc_t     rc;
   char     c   = 0;
   
-  if((rc = thread::create(h,_threadTestCb,&val)) != kOkRC )
+  if((rc = thread::create(h,_threadTestCb,&val,"thread_test")) != kOkRC )
     return rc;
   
   if((rc = thread::pause(h,0)) != kOkRC )

cwThread.h

@@ -5,6 +5,8 @@ namespace cw
 {
   namespace thread
   {
+    const int kDefaultStateTimeOutMicros=100000;
+    const int kDefaultPauseMicros =       10000;
     typedef enum
     {
      kNotInitThId,
@@ -15,13 +17,21 @@ namespace cw
   
     typedef handle<struct thread_str> handle_t;
 
+    // Return false to indicate that the thread should terminate.
     typedef bool (*cbFunc_t)( void* arg );
 
     typedef  unsigned long long thread_id_t;
 
+    // The thread is in the 'paused' state after it is created.
     // stateMicros = total time out duration for switching to the  exit state or for switching in/out of pause state. 
     // pauseMicros = duration of thread sleep interval when in paused state.
-    rc_t create( handle_t& hRef, cbFunc_t func, void* funcArg, int stateTimeOutMicros=100000, int pauseMicros=10000 );
+    rc_t create( handle_t& hRef,
+                 cbFunc_t func,
+                 void* funcArg,
+                 const char* label,  // Assign a label which will show up via `top -H` or `ps -T`.
+                 int stateTimeOutMicros=kDefaultStateTimeOutMicros,
+                 int pauseMicros=kDefaultPauseMicros );
+    
     rc_t destroy( handle_t& hRef );
 
   
@@ -33,6 +43,10 @@ namespace cw
 
     // Return the thread id of the calling context.
     thread_id_t id();
+    const char* label( handle_t h );
+
+    unsigned stateTimeOutMicros( handle_t h);
+    unsigned pauseMicros( handle_t h );
   }
   rc_t threadTest();
 }

cwThreadMach.cpp

@@ -25,13 +25,13 @@ namespace cw
     thread_mach_t* _handleToPtr( handle_t h )
     { return handleToPtr<handle_t,thread_mach_t>(h); }
 
-    rc_t _add( thread_mach_t* p, threadFunc_t func, void* arg )
+    rc_t _add( thread_mach_t* p, threadFunc_t func, void* arg, const char* label )
     {
       rc_t rc = kOkRC;
 
       thread_t* t = mem::allocZ<thread_t>();
 
-      if((rc = thread::create(t->thH, func, arg )) != kOkRC )
+      if((rc = thread::create(t->thH, func, arg, label==nullptr ? "thread_mach" : label )) != kOkRC )
       {
         rc = cwLogError(rc,"Thread create failed.");
         goto errLabel;
@@ -90,7 +90,7 @@ cw::rc_t cw::thread_mach::create( handle_t& hRef, threadFunc_t threadFunc, void*
   {
     void* arg = ctxA + (i*contexRecdByteN);
 
-    if((rc = _add(p, threadFunc, arg)) != kOkRC )
+    if((rc = _add(p, threadFunc, arg, nullptr)) != kOkRC )
       goto errLabel;
   }
 
@@ -103,10 +103,10 @@ cw::rc_t cw::thread_mach::create( handle_t& hRef, threadFunc_t threadFunc, void*
   return rc;
 }
 
-cw::rc_t cw::thread_mach::add( handle_t h, threadFunc_t threadFunc, void* arg )
+cw::rc_t cw::thread_mach::add( handle_t h, threadFunc_t threadFunc, void* arg, const char* label )
 {
   thread_mach_t* p = _handleToPtr(h);
-  return _add(p,threadFunc,arg);
+  return _add(p,threadFunc,arg, label);
 }
 
 cw::rc_t cw::thread_mach::destroy( handle_t& hRef )

cwThreadMach.h

@@ -16,7 +16,7 @@ namespace cw
 
     // Create an additional thread. Note that the additional thread will be started by the next
     // call to 'start()'.
-    rc_t add(   handle_t h, threadFunc_t threadFunc, void* arg );
+    rc_t add(   handle_t h, threadFunc_t threadFunc, void* arg, const char* label );
 
     // Start all threads    
     rc_t start( handle_t h );

cwTime.cpp

@@ -44,11 +44,16 @@ void cw::time::get( spec_t& t )
 #include <sys/time.h> // gettimeofday()
 void cw::time::get( spec_t& t )
 {
-  // NOTcw::mutex::lock(h,timeout) relies on using 
+  clock_gettime(CLOCK_MONOTONIC,&t);
-  // CLOCK_REALTIME.  If the source of this clock changes
-  // then change cw::mutex::loc(h,timeout) as well  
-  clock_gettime(CLOCK_REALTIME,&t);
 }
+
+cw::time::spec_t cw::time::current_time()
+{
+  spec_t t;
+  clock_gettime(CLOCK_REALTIME,&t);
+  return t;
+}
+
 #endif
 
 // this assumes that the seconds have been normalized to a recent start time
@@ -177,8 +182,8 @@ cw::rc_t cw::time::now( spec_t& ts )
   
   memset(&ts,0,sizeof(ts));
   
-  if((errRC = clock_gettime(CLOCK_REALTIME, &ts)) != 0 )
+  if((errRC = clock_gettime(CLOCK_MONOTONIC, &ts)) != 0 )
-  		rc = cwLogSysError(kInvalidOpRC,errRC,"Unable to obtain system time.");
+    rc = cwLogSysError(kInvalidOpRC,errRC,"Unable to obtain system time.");
 
   return rc;
 }
@@ -213,51 +218,40 @@ void cw::time::subtractMicros( spec_t& ts, unsigned micros )
   
 }
 
+
 void cw::time::advanceMicros( spec_t& ts, unsigned us )
 {
-  if( us > 1000000 )
+  const unsigned us_per_sec =    1000000;
-  {
+  const unsigned ns_per_sec = 1000000000;
-    // strip off whole seconds from usec
-    unsigned sec = us / 1000000; 
 
-    // find the remaining fractional second in microseconds
+  unsigned sec = us / us_per_sec;
-    us = (us - sec*1000000);
   
-    ts.tv_sec  += sec;
+  ts.tv_sec  += sec;
-  }
+  ts.tv_nsec += (us - sec*us_per_sec)*1000;
 
-  ts.tv_nsec +=  us * 1000; // convert microseconds to nanoseconds
+  sec = ts.tv_nsec / ns_per_sec;
-
-  // stip off whole seconds from tv_nsec
-  while( ts.tv_nsec > 1000000000 )
-  {
-    ts.tv_nsec -= 1000000000;
-    ts.tv_sec +=1;
-  }    
   
+  ts.tv_sec  += sec;
+  ts.tv_nsec -= sec * ns_per_sec;
 }
 
+
+
 void cw::time::advanceMs( spec_t& ts, unsigned ms )
 {
-  if( ms > 1000 )
-  {
-    // strip off whole seconds from ms
-    unsigned sec = ms / 1000; 
 
-    // find the remaining fractional second in milliseconds
+  const unsigned ms_per_sec = 1000;
-    ms = (ms - sec*1000);
+  const unsigned ns_per_sec = 1000000000;
 
-    ts.tv_sec  += sec;
+  unsigned sec = ms / ms_per_sec;
-  }
 
-  ts.tv_nsec +=  ms * 1000000; // convert millisconds to nanoseconds
+  ts.tv_sec += sec;
+  ts.tv_nsec += (ms - (sec*ms_per_sec)) * 1000000;
 
-  // stip off whole seconds from tv_nsec
+  sec = ts.tv_nsec / ns_per_sec;
-  while( ts.tv_nsec > 1000000000 )
+  
-  {
+  ts.tv_sec  += sec;
-    ts.tv_nsec -= 1000000000;
+  ts.tv_nsec -= sec * ns_per_sec;
-    ts.tv_sec +=1;
-  }    
 }
 
 cw::rc_t cw::time::futureMs( spec_t& ts, unsigned ms )
@@ -277,7 +271,7 @@ void cw::time::secondsToSpec(      spec_t& ts, unsigned sec )
 
 double cw::time::specToSeconds(  const spec_t& t )
 {
-  spec_t ts = t;
+  spec_t ts  = t;
   double sec = ts.tv_sec;
   while( ts.tv_nsec >= 1000000000 )
   {
@@ -288,6 +282,19 @@ double cw::time::specToSeconds(  const spec_t& t )
   return sec + ((double)ts.tv_nsec)/1e9;
 }
 
+unsigned long long cw::time::specToMicroseconds( const spec_t& ts )
+{
+  const unsigned long long us_per_sec =    1000000;
+  const unsigned long long ns_per_sec = 1000000000;
+  
+  unsigned long long us  = ts.tv_sec * us_per_sec;
+  unsigned long long sec = ts.tv_nsec / ns_per_sec;
+  us += sec * us_per_sec;
+  us += (ts.tv_nsec - (sec * ns_per_sec))/1000;
+
+  return us;
+}
+
 
 void cw::time::millisecondsToSpec( spec_t& ts, unsigned ms )
 {
@@ -298,15 +305,24 @@ void cw::time::millisecondsToSpec( spec_t& ts, unsigned ms )
   ts.tv_nsec = ns;  
 }
 
-void cw::time::microsecondsToSpec( spec_t& ts, unsigned us )
+void cw::time::microsecondsToSpec( spec_t& ts, unsigned long long us )
 {
-  unsigned sec = us/1000000;
+  const unsigned long long usPerSec = 1000000;
-  unsigned ns  = (us - (sec*1000000)) * 1000;
+  unsigned long long sec = us/usPerSec;
+  unsigned long long ns  = (us - (sec*usPerSec)) * 1000;
   
   ts.tv_sec  = sec;
   ts.tv_nsec = ns;  
 }
 
+cw::time::spec_t cw::time::microsecondsToSpec( unsigned long long us )
+{
+  spec_t ts;
+  microsecondsToSpec(ts,us);
+  return ts;
+}
+
+
 
 unsigned cw::time::formatDateTime( char* buffer, unsigned bufN, bool includeDateFl )
 {

cwTime.h

@@ -20,6 +20,7 @@ namespace cw
 
     // Get the time 
     void get( spec_t& tRef );
+    spec_t current_time(); // same as get()
 
     // Return the elapsed time (t1 - t0) in microseconds
     // t1 is assumed to be at a later time than t0.
@@ -61,7 +62,7 @@ namespace cw
 
     void setZero( spec_t& t0 );
 
-    rc_t now( spec_t& ts );
+    rc_t now( spec_t& ts ); // same as get()
 
     void subtractMicros( spec_t& ts, unsigned us );
     
@@ -75,8 +76,11 @@ namespace cw
     void secondsToSpec(      spec_t& ts, unsigned sec );
     double specToSeconds(  const spec_t& ts );
 
+    unsigned long long specToMicroseconds( const spec_t& ts );
+
     void millisecondsToSpec( spec_t& ts, unsigned ms );
-    void microsecondsToSpec( spec_t& ts, unsigned us );
+    void microsecondsToSpec( spec_t& ts, unsigned long long us );
+    spec_t microsecondsToSpec( unsigned long long us );
 
     // Return count of bytes in in buf[]
     unsigned formatDateTime( char* buf, unsigned bufN, bool includeDateFl=false );

cwUi.cpp

@@ -75,6 +75,15 @@ namespace cw
       bool            destroyFl;  // used by the deleteElement() algorithm
     } ele_t;
 
+
+    const unsigned hashN = 0xffff;
+    
+    typedef struct bucket_str
+    {
+      ele_t*             ele;
+      struct bucket_str* link;
+    } bucket_t;
+
     typedef struct ui_str
     {
       unsigned        eleAllocN; // size of eleA[]
@@ -108,11 +117,59 @@ namespace cw
       unsigned sentMsgN;
       unsigned recvMsgN;
 
+      bucket_t hashA[ hashN ];
+
     } ui_t;
 
     ui_t* _handleToPtr( handle_t h )
     { return handleToPtr<handle_t,ui_t>(h); }
 
+    unsigned short _gen_hash_index( unsigned parentUuId, unsigned appId )
+    {
+      assert( parentUuId != kInvalidId && appId != kInvalidId );
+      unsigned hc = parentUuId + cwSwap32(appId);
+      
+      return (unsigned short)(((hc & 0xffff0000)>>16) + (hc & 0x0000ffff));
+    }
+    
+
+    void _store_ele_in_hash_table( ui_t* p, ele_t* e )
+    {
+      unsigned parentUuId  = e->logical_parent == nullptr ? kInvalidIdx : e->logical_parent->uuId;
+      
+      if( parentUuId == kInvalidId || e->appId == kInvalidId )
+        return;
+      
+      unsigned short hash_idx = _gen_hash_index( parentUuId, e->appId );
+      
+      if( p->hashA[ hash_idx ].ele == nullptr )
+        p->hashA[ hash_idx ].ele = e;
+      else
+      {
+        bucket_t* b = mem::allocZ<bucket_t>();
+        b->link = p->hashA[ hash_idx ].link;
+        b->ele  = e;
+        p->hashA[hash_idx].link = b;
+      }
+      
+    }
+
+    unsigned _find_ele_in_hash_table( ui_t* p, unsigned parentUuId, unsigned appId, unsigned chanId )
+    {
+      if( parentUuId != kInvalidId && appId != kInvalidId )
+      {
+        unsigned hash_idx = _gen_hash_index(parentUuId,appId);
+        bucket_t* b = p->hashA + hash_idx;
+
+        for(; b!=nullptr; b=b->link)
+          if( b->ele->appId==appId && b->ele->logical_parent->uuId==parentUuId && (chanId==kInvalidId || b->ele->chanId==chanId) )
+            return b->ele->uuId;
+      }
+      
+      return kInvalidId;
+      
+    }
+
     void _print_eles( ui_t* p )
     {
       for(unsigned i=0; i<p->eleN; ++i)
@@ -306,16 +363,23 @@ namespace cw
       if( appId == kRootAppId )
         return kRootUuId;
 
+      // try looking up the result in the hash table
+      unsigned uuid;
+      if((uuid =  _find_ele_in_hash_table(p,parentUuId,appId,chanId)) != kInvalidId )
+        return uuid;
+
+      // if the result could not be found in the hash table (possibly because parentUuId is set to the wildcard i.e. kInvalidId)
+      // then do an exhaustive search
       for(unsigned i=0; i<p->eleN; ++i)
-        if( p->eleA[i]!=nullptr && p->eleA[i]->logical_parent != nullptr ) //skip the root
+        if(    p->eleA[i]        != nullptr
+            && p->eleA[i]->appId == appId
+            && ( parentUuId == kInvalidId || (p->eleA[i]->logical_parent!=nullptr && p->eleA[i]->logical_parent->uuId == parentUuId) )
+            && ( chanId     == kInvalidId ||  p->eleA[i]->chanId == chanId ) )
         {
-          if( ( parentUuId       == kInvalidId || p->eleA[i]->logical_parent->uuId == parentUuId ) &&
+
-              ( chanId           == kInvalidId || p->eleA[i]->chanId               == chanId )     &&
+          return p->eleA[i]->uuId;
-              p->eleA[i]->appId == appId  )
-          {
-              return p->eleA[i]->uuId;
-          }          
         }
+
       return kInvalidId;
     }
     
@@ -550,6 +614,9 @@ namespace cw
 
     unsigned _find_and_available_element_slot( ui_t* p )
     {
+      if( p->eleN < p->eleAllocN && p->eleA[ p->eleN ] == nullptr )
+        return p->eleN;
+      
       for(unsigned i=0; i<p->eleN; ++i)
         if( p->eleA[i] == nullptr )
           return i;
@@ -608,7 +675,7 @@ namespace cw
       // if there are no available slots
       if( avail_ele_idx == p->eleAllocN )
       {
-        p->eleAllocN += 128;
+        p->eleAllocN *= 2;
         p->eleA       = mem::resizeZ<ele_t*>(p->eleA,p->eleAllocN);
       }
 
@@ -635,6 +702,8 @@ namespace cw
           e->appId = m->appId;
       }
 
+      _store_ele_in_hash_table(p, e );
+
       //printf("uuid:%i appId:%i par-uuid:%i %s\n", e->uuId,e->appId,e->parent==nullptr ? -1 : e->parent->uuId, cwStringNullGuard(e->eleName));
        
       return e;
@@ -698,7 +767,7 @@ namespace cw
       if((rc = o->get("name",eleName, cw::kOptionalFl)) != kOkRC )
       {
         // div's and titles don't need a 'name'
-        if( rc == kLabelNotFoundRC && (divAliasFl || textCompare(eleType,"label")==0) )
+        if( rc == kEleNotFoundRC && (divAliasFl || textCompare(eleType,"label")==0) )
           rc = kOkRC;
         else
         {
@@ -1268,7 +1337,7 @@ cw::rc_t cw::ui::create(
   ui_t* p      = mem::allocZ<ui_t>();
 
 
-  p->eleAllocN  = 128;
+  p->eleAllocN  = 1024;
   p->eleA       = mem::allocZ<ele_t*>( p->eleAllocN );
   p->eleN       = 0;
   p->uiCbFunc   = uiCbFunc;
@@ -2025,6 +2094,7 @@ cw::rc_t cw::ui::destroyElement( handle_t h, unsigned uuId )
     if( p->eleA[i] != nullptr && p->eleA[i]->destroyFl )
     {
       _destroy_element( p->eleA[i] );
+      
       p->eleA[i] = nullptr;        
     }
 
@@ -2106,6 +2176,12 @@ cw::rc_t cw::ui::sendValueString( handle_t h, unsigned uuId, const char* value )
   //return _sendValue<const char*>(p,kInvalidId,uuId,"\"%s\"",value,"value",strlen(value)+10);
 }
 
+cw::rc_t cw::ui::sendMsg( handle_t h, const char* msg )
+{
+  ui_t* p  = _handleToPtr(h);
+  return _websockSend(p,kInvalidId,msg);
+}
+
 void cw::ui::report( handle_t h )
 {
   ui_t* p  = _handleToPtr(h);
@@ -2223,7 +2299,7 @@ cw::rc_t cw::ui::ws::parseArgs(  const object_t& o, args_t& args, const char* ob
     op = &o;
   else
     if((op = o.find(object_label)) == nullptr )
-      return cwLogError(kLabelNotFoundRC,"The ui configuration label '%s' was not found.", cwStringNullGuard(object_label));
+      return cwLogError(kEleNotFoundRC,"The ui configuration label '%s' was not found.", cwStringNullGuard(object_label));
   
   if((rc = op->getv(
         "physRootDir", args.physRootDir,
@@ -2496,7 +2572,7 @@ cw::rc_t cw::ui::srv::create(  handle_t& h,
     goto errLabel;
   }
 
-  if((rc = thread::create( p->thH, _threadCallback, p )) != kOkRC )
+  if((rc = thread::create( p->thH, _threadCallback, p, "ui", thread::kDefaultStateTimeOutMicros, thread::kDefaultPauseMicros )) != kOkRC )
   {
     cwLogError(rc,"The websock UI server thread create failed.");
     goto errLabel;

cwUi.h

@@ -169,6 +169,7 @@ namespace cw
     rc_t sendValueDouble( handle_t h, unsigned uuId, double value );
     rc_t sendValueString( handle_t h, unsigned uuId, const char* value );
 
+    rc_t sendMsg( handle_t h, const char* msg );
     
     void report( handle_t h );
     void realTimeReport( handle_t h );
@@ -224,6 +225,8 @@ namespace cw
 
       // This function should be called periodically to send and receive
       // queued messages to and from the websocket.
+      // Note that this call may block for up to 'wsTimeOutMs' milliseconds
+      // on the websocket handle.
       rc_t exec( handle_t h );
 
       // This function executes the internal default websock callback function.

cwVectOps.h

@@ -148,6 +148,26 @@ namespace cw
     }
 
 
+    //==================================================================================================================
+    // absolute value
+    //
+    template<typename T>
+    T* abs( T* v, unsigned n )
+    {
+      for(unsigned i=0; i<n; ++i)
+        v[i] = abs(v[i]);
+      return v;
+    }
+
+    template<typename T0, typename T1>
+    T0* abs( T0* v0, const T1* v1, unsigned n )
+    {
+      for(unsigned i=0; i<n; ++i)
+        v0[i] = abs(v1[i]);
+      return v0;
+    }
+    
+    
     //==================================================================================================================
     // Arithmetic
     //

cwVelTableTuner.cpp

@@ -5,7 +5,6 @@
 #include "cwText.h"
 #include "cwObject.h"
 #include "cwTime.h"
-#include "cwPresetSel.h"
 #include "cwFile.h"
 #include "cwFileSys.h"
 #include "cwMidi.h"

cwWebSock.cpp

@@ -41,6 +41,12 @@ namespace cw
       int         _pollfdMaxN;
       int         _pollfdN;
 
+      unsigned _sendMsgCnt;    // Count of msg's sent 
+      unsigned _sendMaxByteN;  // Max size across all sent msg's
+
+      unsigned _recvMsgCnt;    // Count of msg's recv'd
+      unsigned _recvMaxByteN;  // Max size across all recv'd msg's
+      
     } websock_t;
 
     inline websock_t* _handleToPtr(handle_t h)
@@ -264,7 +270,11 @@ namespace cw
           //printf("recv: sess:%i proto:%s : %p : len:%li\n",sess->id,proto->name,ws->_cbFunc,len);
         
           if( ws->_cbFunc != nullptr && len>0)
+          {
             ws->_cbFunc(ws->_cbArg,proto->id,sess->id,kMessageTId,in,len);
+            ws->_recvMsgCnt += 1;
+            ws->_recvMaxByteN = std::max(ws->_recvMaxByteN,(unsigned)len);
+          }
 
           break;
 
@@ -303,7 +313,7 @@ namespace cw
 
           msg_t* t = m1->link;
       
-          mem::free(m1->msg);
+          //mem::free(m1->msg);
           mem::free(m1);
 
           m1 = t;
@@ -321,6 +331,8 @@ namespace cw
     {
       msg_t* m;
 
+      cwLogInfo("Websock: sent: msgs:%i largest msg:%i - recv: msgs:%i largest msg:%i - LWS_PRE:%i",p->_sendMsgCnt,p->_sendMaxByteN,p->_recvMsgCnt,p->_recvMaxByteN,LWS_PRE);
+    
       if( p->_ctx != nullptr )
       {
         lws_context_destroy(p->_ctx);
@@ -332,7 +344,7 @@ namespace cw
       
         while((m = p->_q->pop()) != nullptr)
         {
-          mem::free(m->msg);
+          //mem::free(m->msg);
           mem::free(m);
         }
       
@@ -351,7 +363,7 @@ namespace cw
         {
           msg_t* tmp = m->link;
       
-          mem::free(m->msg);
+          //mem::free(m->msg);
           mem::free(m);
           m = tmp;
         }
@@ -491,9 +503,14 @@ cw::rc_t cw::websock::send(handle_t h,  unsigned protocolId, unsigned sessionId,
 {
   rc_t rc = kOkRC;
 
-  msg_t* m = mem::allocZ<msg_t>(1);
+  uint8_t* mem = mem::allocZ<uint8_t>( sizeof(msg_t) + LWS_PRE + byteN  );
-  m->msg   = mem::allocZ<unsigned char>(byteN);
+  //msg_t* m = mem::allocZ<msg_t>(1);
-  memcpy(m->msg,msg,byteN);
+  //m->msg   = mem::allocZ<unsigned char>(byteN);
+
+  msg_t* m = (msg_t*)mem;
+  m->msg = mem + sizeof(msg_t);
+  
+  memcpy(m->msg+LWS_PRE,msg,byteN);
   m->msgByteN   = byteN;
   m->protocolId = protocolId;
   m->sessionId = sessionId;
@@ -501,6 +518,9 @@ cw::rc_t cw::websock::send(handle_t h,  unsigned protocolId, unsigned sessionId,
   websock_t* p = _handleToPtr(h);
   p->_q->push(m);
 
+  p->_sendMsgCnt += 1;
+  p->_sendMaxByteN = std::max(p->_sendMaxByteN,byteN);
+  
   return rc;
 }
 
@@ -578,12 +598,13 @@ cw::rc_t cw::websock::exec( handle_t h, unsigned timeOutMs )
 
 
     // add the pre-padding bytes to the msg
-    unsigned char* msg = mem::allocZ<unsigned char>(LWS_PRE + m->msgByteN);
+    //unsigned char* msg = mem::allocZ<unsigned char>(LWS_PRE + m->msgByteN);
-    memcpy( msg+LWS_PRE, m->msg, m->msgByteN );
+    //memcpy( msg+LWS_PRE, m->msg, m->msgByteN );
 
-    mem::free(m->msg); // free the original msg buffer
+    //mem::free(m->msg); // free the original msg buffer
+    
+    //m->msg            = msg;
     
-    m->msg            = msg;               
     m->msgId          = ps->nextNewMsgId;  // set the msg id
     ps->begMsg->link  = m;                 // put the msg on the front of the outgoing  queue
     ps->begMsg        = m;                 // 

cwWebSockSvr.cpp

@@ -68,7 +68,7 @@ cw::rc_t cw::websockSrv::create(
     goto errLabel;
   
 
-  if((rc = thread::create(p->_thread,_websockSrvThreadCb,p)) != kOkRC )
+  if((rc = thread::create(p->_thread,_websockSrvThreadCb,p,"web_sock_srv")) != kOkRC )
     goto errLabel;
   
   p->_timeOutMs = timeOutMs;

html/preset_sel/js/ui.js

@@ -3,170 +3,23 @@ var _rootId    = "0";
 var _nextEleId = 0;
 var _focusId   = null;
 var _focusVal  = null;
+var _rootDivEle = null;
+var _rootEle = null;
 
 function set_app_title( suffix, className )
 {
     var ele = document.getElementById('connectTitleId');
-    ele.innerHTML = suffix
+    if(ele != null)
-    ele.className = className
-}
-
-
-function uiOnError( msg, r)
-{
-    console.log("Error:" + msg);
-}
-
-function uiGetParent( r )
-{
-    parent_ele = document.getElementById(r.parent_id);
-    
-    if( parent_ele == null )
     {
-	uiOnError("Parent not found. parent_id:" + r.parent_id,r);
+	ele.innerHTML = suffix
+	ele.className = className
     }
-
+    else
-    return parent_ele;
-}
-
-function uiCreateEle( r )
-{
-    var parent_ele;
-    
-    if((parent_ele = uiGetParent(r)) != null )
     {
-	ele            = document.createElement(r.ele_type)
+	console.log("Ele. not found. Set title failed.")
-	ele.id         = r.ele_id;
-	ele.className  = r.value;
-	
-	parent_ele.appendChild(ele)
     }
 }
 
-function uiRemoveChildren( r )
-{
-    ele = document.getElementById(r.ele_id)
-    
-    while (ele.firstChild)
-    {
-	ele.removeChild(ele.firstChild);
-    }  
-}
-
-function uiDivCreate( r )
-{ uiCreateEle(r) }
-
-function uiLabelCreate( r )
-{
-    var parent_ele;
-    
-    if((parent_ele = uiGetParent(r)) != null )
-    {
-	ele            = document.createElement("label")
-	ele.htmlFor    = r.ele_id
-	ele.innerHTML  = r.value;
-	parent_ele.appendChild(ele)
-    }
-    
-}
-
-function uiSelectCreate( r )
-{
-    uiCreateEle(r)
-}
-
-function uiSelectClear( r )
-{ uiRemoveChildren(r) }
-
-function uiSelectInsert( r )
-{
-    var select_ele;
-    
-    if((select_ele = uiGetParent(r)) != null )    
-    {
-	var option    = document.createElement('option');
-
-	option.id        = r.ele_id;
-	option.innerHTML = r.value;
-	option.value     = r.ele_id;
-	option.onclick   = function() { uiOnSelectClick(this) }
-	
-	select_ele.appendChild(option)
-    }
-}
-
-function uiSelectChoose( r )
-{
-    var select_ele;
-    
-    if((select_ele = uiGetParent(r)) != null )    
-    {
-	if( select_ele.hasChildNodes())
-	{
-	    var children = select_ele.childNodes
-	    for(var i=0; i<children.length; i++)
-	    {
-		if( children[i].id == r.ele_id )
-		{
-		    select_ele.selectedIndex = i
-		    break;
-		}	
-	    }
-	}
-    }
-}
-
-function uiOnSelectClick( ele )
-{
-    cmdstr = "mode ui ele_type select op choose parent_id "+ele.parentElement.id+" option_id " + ele.id
-    websocket.send(cmdstr);
-
-}
-
-function uiNumberOnKeyUp( e )
-{
-    if( e.keyCode == 13 )
-    {
-	//console.log(e)
-	cmdstr = "mode ui ele_type number op change parent_id "+e.srcElement.parentElement.id+" ele_id " + e.srcElement.id + " value " + e.srcElement.value    
-	websocket.send(cmdstr);
-    }
-}
-
-
-function uiNumberCreate( r )
-{
-    var parent_ele;
-    
-    if((parent_ele = uiGetParent(r)) != null )        
-    {
-	ele    = document.createElement("input")
-	ele.id = r.ele_id
-	ele.setAttribute('type','number')
-	ele.addEventListener('keyup',uiNumberOnKeyUp)
-	parent_ele.appendChild(ele)
-    }
-}
-
-function uiNumberSet( r )
-{
-    var ele;
-
-    //console.log("ele_id:" + r.ele_id + " parent_id:" + r.parent_id + " value:" + r.value)
-    
-    if((ele = document.getElementById(r.parent_id)) != null)
-    {
-	switch( r.ele_id )
-	{
-	    case "0":  ele.min   = r.value; break;
-	    case "1":  ele.max   = r.value; break;
-	    case "2":  ele.step  = r.value; break;
-	    case "3":  ele.value = r.value; break;
-	}
-    }
-}
-
-
 
 function dom_child_by_id( parentEle, child_id )
 {
@@ -204,9 +57,31 @@ function dom_set_number( ele_id, val )
 
 
 //==============================================================================
-
 function dom_id_to_ele( id )
-{ return document.getElementById(id); }
+{
+    var ele = null;
+    
+    if( _rootEle == null )
+    {
+	console.log("fail dtoe: root null");
+    }
+    else
+    {
+	if( id == _rootId )
+	    return _rootEle
+	
+	//ele =  _rootEle.getElementById(id);
+	
+	ele = document.getElementById(id)
+	if( ele == null )
+	{
+	    console.log("fail dtoe:" + id + " " + typeof(id) );
+	}
+    }
+    return ele
+}
+
+// { return document.getElementById(id); }
 
 function dom_set_checkbox( ele_id, fl )
 { dom_id_to_ele(ele_id).checked = fl }
@@ -1197,6 +1072,11 @@ function ui_destroy( d )
 	ele.parentElement.removeChild( ele )
 }
 
+function ui_attach( d )
+{
+    console.log("ATTACH");
+    //_rootDivEle.appendChild(_rootEle)
+}
 
 
 function ws_send( s )
@@ -1230,6 +1110,10 @@ function _ws_on_msg( d )
 	ui_set( d )
 	break;
 
+	case 'attach':
+	ui_attach(d)
+	break;
+	
 	default:
 	ui_error("Unknown UI operation. " + d.op )
     }
@@ -1275,7 +1159,7 @@ function ws_form_url(urlSuffix)
     return pcol + u[0] + "/" + urlSuffix;
 }
 
-function main()
+function main_0()
 {
     d = { "className":"uiAppDiv", "uuId":_rootId }
     rootEle = ui_create_div( document.body, d )
@@ -1290,7 +1174,28 @@ function main()
     _ws.onmessage    = ws_on_msg
     _ws.onopen       = ws_on_open 
     _ws.onclose      = ws_on_close;
-
+}
-    
+
+function main()
+{
+    d = { "className":"uiAppDiv", "uuId":"rootDivEleId" }
+    _rootDivEle = ui_create_div( document.body, d )
+
+    //_rootEle = document.createDocumentFragment();
+    _rootEle = _rootDivEle
+    
+    _rootEle.uuId = 0;
+    _rootEle.id = _nextEleId;
+    _nextEleId += 1;
+
+    //console.log(ws_form_url(""))
+    
+    _ws = new WebSocket(ws_form_url(""),"ui_protocol")
+    
+    _ws.onmessage    = ws_on_msg
+    _ws.onopen       = ws_on_open 
+    _ws.onclose      = ws_on_close;
+
+    console.log("main() done.")
 }
 

html/preset_sel/ui.cfg

@@ -12,6 +12,7 @@
 		button:{ name: ioReportBtnId, title:"IO Report" },
 		button:{ name: netPrintBtnId, title:"Print Network" }
 		button:{ name: reportBtnId,   title:"App Report" },
+		button:{ name: latencyBtnId,  title:"Latency Reset"},
 		button:{ name: saveBtnId,     title:"Save" },
 
 		select:{ name: perfSelId,  title:"Load",children: {} },
@@ -19,6 +20,12 @@
 
 	    },
 
+            row: {
+	        check: { name: presetProbPriCheckId, title: "Pri Prob::" },
+	        check: { name: presetProbSecCheckId, title: "Sec Prob:" },
+		check: { name: presetInterpCheckId,  title: "Interp:"}
+	    },
+
 	    row: {
     		check:  { name: printMidiCheckId,   title: "Print MIDI" },
 		check:  { name: pianoMidiCheckId,   title: "Piano MIDI" },