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@@ -0,0 +1,751 @@
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1
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+#include "cmGlobal.h"
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2
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+#include "cmRpt.h"
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+#include "cmErr.h"
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+#include "cmCtx.h"
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+#include "cmMem.h"
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+#include "cmMallocDebug.h"
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+#include "cmUdpPort.h"
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+#include "cmRtNet.h"
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+#include "cmTime.h"
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+#include "cmRtSysMsg.h"
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+
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+enum
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+{
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+ kLocalNetFl = 0x01,
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+ kSockAddrNetFl = 0x02
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+};
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+
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+typedef enum
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+{
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+ kSendHelloStNetId = 0,
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+ kWaitHelloAckStNetId,
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+ kSendEndpointStNetId,
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+ kWaitEndpointAckStNetId,
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+ kDoneStNetId,
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+ kErrorStNetId,
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+ kInvalidStNetId,
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+} cmRtNetNodeState_t;
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+
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+typedef enum
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+{
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+ kHelloSelNetId,
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+ kHelloAckSelNetId,
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+ kEndpointSelNetId,
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+ kEndpointAckSelNetId
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+} cmRtNetSelId_t;
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+
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+typedef struct cmRtNetEnd_str
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+{
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+ cmChar_t* endPtLabel;
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+ unsigned endPtId;
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+ struct cmRtNetEnd_str* link;
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+} cmRtNetEnd_t;
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+
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+
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+typedef struct cmRtNetNode_str
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+{
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+ cmChar_t* label;
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+ struct sockaddr_in sockaddr;
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+ cmChar_t* addr;
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+ cmUdpPort_t port;
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+ unsigned flags;
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+ cmRtNetNodeState_t state;
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+ unsigned epIdx;
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+ cmTimeSpec_t lastSendTime;
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+ cmRtNetEnd_t* ends;
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+ struct cmRtNetNode_str* link;
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+} cmRtNetNode_t;
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+
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+typedef struct
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+{
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+ cmErr_t err;
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+ cmUdpH_t udpH;
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+ cmUdpCallback_t cbFunc;
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+ void* cbArg;
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+ cmRtNetNode_t* nodes;
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+ cmRtNetNode_t* localNode;
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+ bool syncModeFl;
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+ unsigned udpRecvBufByteCnt;
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+ unsigned udpTimeOutMs;
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+ unsigned interSyncSendTimeMs;
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+} cmRtNet_t;
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+
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+
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+typedef struct
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+{
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+ cmRtSysMsgHdr_t hdr;
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+ cmRtNetSelId_t selId;
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+ const cmChar_t* endPtLabel;
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+ unsigned endPtId;
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+} cmRtNetSyncMsg_t;
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+
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+cmRtNetH_t cmRtNetNullHandle = cmSTATIC_NULL_HANDLE;
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+
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+cmRtNet_t* _cmRtNetHandleToPtr( cmRtNetH_t h )
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+{
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+ cmRtNet_t* p = (cmRtNet_t*)h.h;
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+ assert( p != NULL );
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+ return p;
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+}
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+
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+void _cmRtNetVRpt( cmRtNet_t* p, const cmChar_t* fmt, va_list vl )
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+{
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+ cmRptVPrintf(p->err.rpt,fmt,vl);
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+}
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+
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+void _cmRtNetRpt( cmRtNet_t* p, const cmChar_t* fmt, ... )
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+{
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+ va_list vl;
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+ va_start(vl,fmt);
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+ _cmRtNetVRpt(p,fmt,vl);
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+ va_end(vl);
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+}
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+
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+cmRtNetNode_t* _cmRtNetFindNode( cmRtNet_t* p, const cmChar_t* label )
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+{
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+ if( label == NULL )
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+ return NULL;
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+
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+ cmRtNetNode_t* np = p->nodes;
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+ for(; np!=NULL; np=np->link)
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+ if( strcmp(label,np->label)==0)
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+ return np;
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+
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+ return NULL;
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+}
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+
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+cmRtNetNode_t* _cmRtNetFindNodeFromSockAddr( cmRtNet_t* p, const struct sockaddr_in* saddr )
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+{
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+ if( saddr == NULL )
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+ return NULL;
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+
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+ cmRtNetNode_t* np = p->nodes;
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+ for(; np!=NULL; np=np->link)
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+ if( cmIsFlag(np->flags,kSockAddrNetFl) && np->sockaddr.sin_addr.s_addr == saddr->sin_addr.s_addr && np->sockaddr.sin_port == saddr->sin_port )
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+ return np;
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+
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+ return NULL;
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+}
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+
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+void _cmRtNetFreeNode( cmRtNetNode_t* np )
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+{
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+ cmRtNetEnd_t* ep = np->ends;
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+ while( ep != NULL )
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+ {
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+ cmRtNetEnd_t* nep = ep->link;
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+ cmMemFree(ep->endPtLabel);
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+ cmMemFree(ep);
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+ ep = nep;
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+ }
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+
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+ cmMemFree(np->label);
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+ cmMemFree(np->addr);
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+ cmMemFree(np);
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+}
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+
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+void _cmRtNetReleaseNodes( cmRtNet_t* p )
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+{
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+ cmRtNetNode_t* np = p->nodes;
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+ while( np != NULL )
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+ {
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+ cmRtNetNode_t* nnp = np->link;
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+
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+ _cmRtNetFreeNode(np);
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+
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+ np = nnp;
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+ }
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+ p->nodes = NULL;
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+ p->localNode = NULL;
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+}
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+
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+cmRtNetRC_t _cmRtNetReleaseNode( cmRtNet_t* p, cmRtNetNode_t* np )
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+{
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+ // we should never release the local node via this function
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+ assert( np != p->localNode );
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+
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+ cmRtNetNode_t* cnp = p->nodes;
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+ cmRtNetNode_t* pnp = NULL;
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+
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+ while( cnp != NULL )
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+ {
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+ cmRtNetNode_t* nnp = cnp->link;
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+ if( np == cnp )
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+ {
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+ if( pnp == NULL )
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+ p->nodes = np->link;
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+ else
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+ pnp->link = np->link;
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+
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+ _cmRtNetFreeNode(np);
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+
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+ return kOkNetRC;
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+ }
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+
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+ pnp = np;
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+ cnp = nnp;
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+ }
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+
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+ assert(0);
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+ return cmErrMsg(&p->err,kNodeNotFoundNetRC,"Node to release not found.");
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+}
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+
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+cmRtNetRC_t _cmRtNetCreateNode( cmRtNet_t* p, const cmChar_t* label, const cmChar_t* addr, cmUdpPort_t port, const struct sockaddr_in* saddr )
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+{
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+ cmRtNetNode_t* np;
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+
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+ if( label == NULL )
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+ return cmErrMsg(&p->err,kInvalidLabelNetRC,"A null or blank node label was encountered.");
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+
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+ if((np = _cmRtNetFindNode(p,label)) != NULL )
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+ return cmErrMsg(&p->err,kDuplLabelNetRC,"The node label '%s' is already in use.",cmStringNullGuard(label));
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+
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+ bool localNodeFl = addr==NULL && saddr==NULL;
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+
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+ if( localNodeFl && p->localNode != NULL )
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+ return cmErrMsg(&p->err,kDuplLocalNetRC,"The local node '%s' has already been set.",cmStringNullGuard(p->localNode->label));
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+
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+ np = cmMemAllocZ(cmRtNetNode_t,1);
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+ np->label = cmMemAllocStr(label);
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+ np->addr = addr==NULL ? NULL : cmMemAllocStr(addr);
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+ np->port = port;
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+ np->flags = cmEnaFlag(np->flags,kLocalNetFl,localNodeFl);
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+ np->link = p->nodes;
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+ p->nodes = np;
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+
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+ if( localNodeFl )
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+ p->localNode = np;
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+
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+ if( saddr != NULL )
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+ {
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+ np->sockaddr = *saddr;
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+ np->flags = cmSetFlag(np->flags,kSockAddrNetFl);
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+ }
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+
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+ return kOkNetRC;
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+}
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+
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+cmRtNetEnd_t* _cmRtNetFindNodeEnd(cmRtNetNode_t* np, const cmChar_t* endPtLabel )
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+{
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+ cmRtNetEnd_t* ep = np->ends;
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+ for(; ep!=NULL; ep=ep->link)
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+ if( strcmp(ep->endPtLabel,endPtLabel)==0 )
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+ return ep;
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+ return NULL;
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+}
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+
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+cmRtNetEnd_t* _cmRtNetIndexToEndpoint( cmRtNet_t* p, cmRtNetNode_t* np, unsigned endIndex )
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237
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+{
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238
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+ cmRtNetEnd_t* ep = np->ends;
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239
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+ unsigned i;
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+ for(i=0; ep!=NULL; ep=ep->link)
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241
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+ {
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+ if( i == endIndex )
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+ return ep;
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+ ++i;
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245
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+ }
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246
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+
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247
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+ return NULL;
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248
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+}
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249
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+
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250
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+cmRtNetRC_t _cmRtNetCreateEndpoint( cmRtNet_t* p, cmRtNetNode_t* np, const cmChar_t* endPtLabel, unsigned endPtId )
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251
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+{
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252
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+ if( endPtLabel == NULL )
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253
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+ return cmErrMsg(&p->err,kInvalidLabelNetRC,"A null or blank node label was encountered.");
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254
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+
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255
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+ if( _cmRtNetFindNodeEnd( np, endPtLabel) != NULL)
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256
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+ return cmErrMsg(&p->err,kDuplEndNetRC,"A duplicate endpoint ('%s') was encountered on node '%s'.",endPtLabel,np->label);
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+
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258
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+ cmRtNetRC_t rc = kOkNetRC;
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259
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+ cmRtNetEnd_t* ep = cmMemAllocZ(cmRtNetEnd_t,1);
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260
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+
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261
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+ ep->endPtLabel = cmMemAllocStr(endPtLabel);
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262
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+ ep->endPtId = endPtId;
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263
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+ ep->link = np->ends;
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264
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+ np->ends = ep;
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265
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+
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266
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+ return rc;
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267
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+}
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268
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+
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269
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+unsigned _cmRtNetSyncMsgSerialByteCount( const cmRtNetSyncMsg_t* m )
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270
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+{ return sizeof(cmRtNetSyncMsg_t) + m->endPtLabel==NULL ? 1 : strlen(m->endPtLabel) + 1; }
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271
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+
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272
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+cmRtNetRC_t _cmRtNetSerializeSyncMsg( cmRtNet_t* p, const cmRtNetSyncMsg_t* m, void* buf, unsigned n )
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273
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+{
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274
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+ unsigned bn = _cmRtNetSyncMsgSerialByteCount(m);
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275
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+ char* b = (char*)buf;
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276
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+
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277
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+ if( bn > n )
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278
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+ return cmErrMsg(&p->err,kBufToSmallNetRC,"Serialize buffer too small.");
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279
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+
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280
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+ memcpy(b,m,sizeof(*m));
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281
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+ strcpy(b + sizeof(*m),m->endPtLabel==NULL ? "" : m->endPtLabel);
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282
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+ return kOkNetRC;
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283
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+}
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284
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+
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285
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+cmRtNetRC_t _cmRtNetDeserializeSyncMsg( const void* buf, unsigned n, cmRtNetSyncMsg_t* m )
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286
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+{
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287
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+ assert( n > sizeof(*m));
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288
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+ memcpy(m,buf,sizeof(*m));
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289
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+ const cmRtNetSyncMsg_t* mp = (const cmRtNetSyncMsg_t*)buf;
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290
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+ const cmChar_t* s = (const cmChar_t*)(mp+1);
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291
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+ m->endPtLabel = cmMemAllocStr(s);
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292
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+ return kOkNetRC;
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293
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+}
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294
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+
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295
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+cmRtNetRC_t _cmRtNetSendSyncMsg( cmRtNet_t* p, cmRtNetNode_t* np, cmRtNetSelId_t selId, const cmChar_t* endPtLabel, unsigned endPtId, cmRtNetNodeState_t nextStId )
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296
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+{
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297
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+ cmRtNetSyncMsg_t m;
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298
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+ cmRtNetRC_t rc = kOkNetRC;
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299
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+
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300
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+ m.hdr.rtSubIdx = cmInvalidIdx;
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301
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+ m.hdr.selId = kNetSyncSelRtId;
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302
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+ m.selId = selId;
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303
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+ m.endPtLabel = endPtLabel;
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304
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+ m.endPtId = endPtId;
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305
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+
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306
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+ // determine size of msg to send
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307
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+ unsigned n = _cmRtNetSyncMsgSerialByteCount(&m);
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308
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+ cmChar_t buf[n];
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309
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+
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310
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+ // serialize msg into buf[]
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311
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+ if((rc = _cmRtNetSerializeSyncMsg(p,&m,buf,n)) != kOkNetRC )
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312
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+ return rc;
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313
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+
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314
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+ // store this nodes current sync state
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315
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+ cmRtNetNodeState_t orgState = np->state;
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316
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+ np->state = nextStId;
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317
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+
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318
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+ // send the msg
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319
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+ cmUdpRC_t udpRC;
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320
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+ if( cmIsFlag(np->flags,kSockAddrNetFl) )
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321
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+ udpRC = cmUdpSendTo(p->udpH, buf, n, &np->sockaddr );
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322
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+ else
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323
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+ udpRC = cmUdpSend2(p->udpH, buf, n, np->addr, np->port );
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324
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+
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325
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+ // check for send errors
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326
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+ if( udpRC != kOkUdpRC )
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327
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+ {
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328
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+ rc = cmErrMsg(&p->err,kUdpPortFailNetRC,"Sync msg. send on UDP port failed.");
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329
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+ np->state = orgState; // restore node state so we can try again
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330
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+ }
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331
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+ else
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332
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+ {
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333
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+ // record the last send time
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334
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+ cmTimeGet(&np->lastSendTime);
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335
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+ }
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336
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+
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337
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+ return rc;
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338
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+}
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339
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+
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340
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+cmRtNetRC_t _cmRtNetFree( cmRtNet_t* p )
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|
341
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+{
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342
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+ cmRtNetRC_t rc = kOkNetRC;
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343
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+
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344
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+ if( cmUdpFree(&p->udpH) != kOkUdpRC )
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345
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+ cmErrMsg(&p->err,kUdpPortFailNetRC,"UDP Port free failed.");
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346
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+
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347
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+ _cmRtNetReleaseNodes(p);
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348
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+
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349
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+ cmMemFree(p);
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350
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+ return rc;
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351
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+}
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352
|
+
|
|
353
|
+
|
|
354
|
+cmRtNetRC_t cmRtNetAlloc( cmCtx_t* ctx, cmRtNetH_t* hp, cmUdpCallback_t cbFunc, void* cbArg )
|
|
355
|
+{
|
|
356
|
+ cmRtNetRC_t rc;
|
|
357
|
+ if((rc = cmRtNetFree(hp)) != kOkNetRC )
|
|
358
|
+ return rc;
|
|
359
|
+
|
|
360
|
+ cmRtNet_t* p = cmMemAllocZ(cmRtNet_t,1);
|
|
361
|
+ cmErrSetup(&p->err,&ctx->rpt,"cmRtNet");
|
|
362
|
+
|
|
363
|
+ // allocate the UDP port
|
|
364
|
+ if(cmUdpAlloc(ctx,&p->udpH) != kOkUdpRC )
|
|
365
|
+ {
|
|
366
|
+ cmErrMsg(&p->err,kUdpPortFailNetRC,"UDP Port allocate failed.");
|
|
367
|
+ goto errLabel;
|
|
368
|
+ }
|
|
369
|
+
|
|
370
|
+ p->udpTimeOutMs = 50;
|
|
371
|
+ p->udpRecvBufByteCnt = 8192;
|
|
372
|
+ p->interSyncSendTimeMs = 10;
|
|
373
|
+ p->cbFunc = cbFunc;
|
|
374
|
+ p->cbArg = cbArg;
|
|
375
|
+
|
|
376
|
+ hp->h = p;
|
|
377
|
+
|
|
378
|
+ errLabel:
|
|
379
|
+ if(rc != kOkNetRC )
|
|
380
|
+ _cmRtNetFree(p);
|
|
381
|
+
|
|
382
|
+ return rc;
|
|
383
|
+}
|
|
384
|
+
|
|
385
|
+cmRtNetRC_t cmRtNetFree( cmRtNetH_t* hp )
|
|
386
|
+{
|
|
387
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
388
|
+
|
|
389
|
+ if( hp==NULL || cmRtNetIsValid(*hp)==false )
|
|
390
|
+ return rc;
|
|
391
|
+
|
|
392
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(*hp);
|
|
393
|
+
|
|
394
|
+ if((rc = _cmRtNetFree(p)) != kOkNetRC )
|
|
395
|
+ return rc;
|
|
396
|
+
|
|
397
|
+ hp->h = NULL;
|
|
398
|
+
|
|
399
|
+ return rc;
|
|
400
|
+}
|
|
401
|
+
|
|
402
|
+bool cmRtNetIsValid( cmRtNetH_t h )
|
|
403
|
+{ return h.h !=NULL; }
|
|
404
|
+
|
|
405
|
+cmUdpH_t cmRtNetUdpPortHandle( cmRtNetH_t h )
|
|
406
|
+{
|
|
407
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
408
|
+ return p->udpH;
|
|
409
|
+}
|
|
410
|
+
|
|
411
|
+
|
|
412
|
+cmRtNetRC_t cmRtNetCreateNode( cmRtNetH_t h, const cmChar_t* nodeLabel, const cmChar_t* ipAddr, cmUdpPort_t port )
|
|
413
|
+{
|
|
414
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
415
|
+ cmRtNetRC_t rc;
|
|
416
|
+
|
|
417
|
+ // create a node
|
|
418
|
+ if((rc = _cmRtNetCreateNode(p,nodeLabel,ipAddr, port, NULL)) != kOkNetRC )
|
|
419
|
+ return rc;
|
|
420
|
+
|
|
421
|
+ // if this is not the local node
|
|
422
|
+ if( ipAddr != NULL )
|
|
423
|
+ return rc;
|
|
424
|
+
|
|
425
|
+ // if this is the local node then initialze the local socket
|
|
426
|
+ if( cmUdpInit(p->udpH,port,kNonBlockingUdpFl,p->cbFunc,p->cbArg,NULL,0,p->udpRecvBufByteCnt,p->udpTimeOutMs) != kOkUdpRC )
|
|
427
|
+ {
|
|
428
|
+ rc = cmErrMsg(&p->err,kUdpPortFailNetRC,"The UDP port initialization failed.");
|
|
429
|
+ goto errLabel;
|
|
430
|
+ }
|
|
431
|
+
|
|
432
|
+ // begin listening on the local port
|
|
433
|
+ if( cmUdpEnableListen(p->udpH, true ) != kOkUdpRC )
|
|
434
|
+ {
|
|
435
|
+ rc = cmErrMsg(&p->err,kUdpPortFailNetRC,"The UDP port failed to enter 'listen' mode.");
|
|
436
|
+ goto errLabel;
|
|
437
|
+ }
|
|
438
|
+
|
|
439
|
+
|
|
440
|
+ errLabel:
|
|
441
|
+ return rc;
|
|
442
|
+}
|
|
443
|
+
|
|
444
|
+cmRtNetRC_t cmRtNetRegisterEndPoint( cmRtNetH_t h, const cmChar_t* endPtLabel, unsigned endPtId )
|
|
445
|
+{
|
|
446
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
447
|
+
|
|
448
|
+ if( p->localNode == NULL )
|
|
449
|
+ return cmErrMsg(&p->err,kLocalNodeNetRC,"Local endpoints may not be added if a local node has not been defined.");
|
|
450
|
+
|
|
451
|
+ return _cmRtNetCreateEndpoint(p, p->localNode,endPtLabel,endPtId );
|
|
452
|
+
|
|
453
|
+}
|
|
454
|
+
|
|
455
|
+cmRtNetRC_t cmRtNetClearAll( cmRtNetH_t h )
|
|
456
|
+{
|
|
457
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
458
|
+ _cmRtNetReleaseNodes(p);
|
|
459
|
+ return kOkNetRC;
|
|
460
|
+}
|
|
461
|
+
|
|
462
|
+cmRtNetRC_t cmRtNetBeginSyncMode( cmRtNetH_t h )
|
|
463
|
+{
|
|
464
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
465
|
+
|
|
466
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
467
|
+
|
|
468
|
+ p->syncModeFl = true;
|
|
469
|
+
|
|
470
|
+ return rc;
|
|
471
|
+}
|
|
472
|
+
|
|
473
|
+bool cmRtNetIsInSyncMode( cmRtNetH_t h )
|
|
474
|
+{
|
|
475
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
476
|
+
|
|
477
|
+ return p->syncModeFl;
|
|
478
|
+}
|
|
479
|
+
|
|
480
|
+
|
|
481
|
+// Used by slaves to send the master an 'ack' msg.
|
|
482
|
+cmRtNetRC_t _cmRtNetSendAck( cmRtNet_t* p, cmRtNetSelId_t ackSelId, const struct sockaddr_in* saddr )
|
|
483
|
+{
|
|
484
|
+ cmRtNetNode_t* np;
|
|
485
|
+
|
|
486
|
+ if((np = _cmRtNetFindNodeFromSockAddr(p,saddr)) != NULL )
|
|
487
|
+ return cmErrMsg(&p->err,kNodeNotFoundNetRC,"The net node associated with an ack cmd was not found. Ack not sent.");
|
|
488
|
+
|
|
489
|
+ return _cmRtNetSendSyncMsg(p,np,ackSelId,NULL,cmInvalidId,kInvalidStNetId);
|
|
490
|
+}
|
|
491
|
+
|
|
492
|
+// Used by master to update state upon receipt of 'ack' msg
|
|
493
|
+cmRtNetRC_t _cmRtNetRecvAck( cmRtNet_t* p, const struct sockaddr_in* fromAddr, cmRtNetNodeState_t expectedState, cmRtNetNodeState_t nextState )
|
|
494
|
+{
|
|
495
|
+ cmRtNetNode_t* np;
|
|
496
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
497
|
+
|
|
498
|
+ if((np = _cmRtNetFindNodeFromSockAddr(p,fromAddr)) == NULL )
|
|
499
|
+ {
|
|
500
|
+ rc = cmErrMsg(&p->err,kNodeNotFoundNetRC,"The net node associated with a ack receive was not found.");
|
|
501
|
+ goto errLabel;
|
|
502
|
+ }
|
|
503
|
+
|
|
504
|
+ if( np->state != expectedState )
|
|
505
|
+ {
|
|
506
|
+ rc = cmErrMsg(&p->err,kNodeStateErrNetRC,"Node '%s' expected in state %i was in state %i.",kWaitHelloAckStNetId,np->state);
|
|
507
|
+ np->state = kErrorStNetId;
|
|
508
|
+ goto errLabel;
|
|
509
|
+ }
|
|
510
|
+
|
|
511
|
+ np->state = nextState;
|
|
512
|
+
|
|
513
|
+ errLabel:
|
|
514
|
+ return rc;
|
|
515
|
+}
|
|
516
|
+
|
|
517
|
+
|
|
518
|
+cmRtNetRC_t cmRtNetSyncModeRecv( cmRtNetH_t h, const char* data, unsigned dataByteCnt, const struct sockaddr_in* fromAddr )
|
|
519
|
+{
|
|
520
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
521
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
522
|
+ cmRtNetNode_t* np = NULL;
|
|
523
|
+ cmRtNetSyncMsg_t m;
|
|
524
|
+
|
|
525
|
+ assert( p->syncModeFl );
|
|
526
|
+
|
|
527
|
+ if( _cmRtNetDeserializeSyncMsg(data,dataByteCnt,&m) != kOkNetRC )
|
|
528
|
+ {
|
|
529
|
+ rc = cmErrMsg(&p->err,rc,"Net sync. receive failed due to deserialize fail.");
|
|
530
|
+ goto errLabel;
|
|
531
|
+ }
|
|
532
|
+
|
|
533
|
+ assert( m.hdr.selId == kNetSyncSelRtId );
|
|
534
|
+
|
|
535
|
+ switch( m.selId )
|
|
536
|
+ {
|
|
537
|
+
|
|
538
|
+ case kHelloSelNetId: // slave response
|
|
539
|
+ {
|
|
540
|
+ _cmRtNetRpt(p,"rcv hello\n");
|
|
541
|
+
|
|
542
|
+ // attempt to locate the remote node which sent the endpoint
|
|
543
|
+ if((np = _cmRtNetFindNodeFromSockAddr(p,fromAddr)) != NULL )
|
|
544
|
+ {
|
|
545
|
+ // delete the existing node because we are about to get new info. about it.
|
|
546
|
+ if((rc = _cmRtNetReleaseNode(p,np )) != kOkNetRC )
|
|
547
|
+ goto errLabel;
|
|
548
|
+ }
|
|
549
|
+
|
|
550
|
+ // create a node proxy to represent the remote node
|
|
551
|
+ if(( rc = _cmRtNetCreateNode(p,m.endPtLabel,NULL,0,fromAddr)) != kOkNetRC )
|
|
552
|
+ goto errLabel;
|
|
553
|
+
|
|
554
|
+ // send an ackknowledgement of the 'hello' msg
|
|
555
|
+ rc = _cmRtNetSendAck(p,kHelloAckSelNetId,fromAddr);
|
|
556
|
+ }
|
|
557
|
+ break;
|
|
558
|
+
|
|
559
|
+
|
|
560
|
+ case kEndpointSelNetId: // slave response
|
|
561
|
+ {
|
|
562
|
+ cmRtNetEnd_t* ep;
|
|
563
|
+
|
|
564
|
+ _cmRtNetRpt(p,"rcv endpoint\n");
|
|
565
|
+
|
|
566
|
+
|
|
567
|
+ // locate the remote node which sent the endpoint
|
|
568
|
+ if((np = _cmRtNetFindNodeFromSockAddr(p,fromAddr)) == NULL )
|
|
569
|
+ {
|
|
570
|
+ rc = cmErrMsg(&p->err,kNodeNotFoundNetRC,"The net node associated with an endpoint receive was not found.");
|
|
571
|
+ goto errLabel;
|
|
572
|
+ }
|
|
573
|
+
|
|
574
|
+ // attempt to find the end point
|
|
575
|
+ if((ep = _cmRtNetFindNodeEnd(np,m.endPtLabel)) != NULL )
|
|
576
|
+ ep->endPtId = m.endPtId; // the endpoint was found update the endPtId
|
|
577
|
+ else
|
|
578
|
+ {
|
|
579
|
+ // create a local proxy for the endpoint
|
|
580
|
+ if((rc = _cmRtNetCreateEndpoint(p,np,m.endPtLabel,m.endPtId)) != kOkNetRC )
|
|
581
|
+ goto errLabel;
|
|
582
|
+ }
|
|
583
|
+
|
|
584
|
+ // ack. the endpoint msg
|
|
585
|
+ rc = _cmRtNetSendAck(p,kEndpointAckSelNetId,fromAddr);
|
|
586
|
+ }
|
|
587
|
+ break;
|
|
588
|
+
|
|
589
|
+ case kHelloAckSelNetId: // master response
|
|
590
|
+ _cmRtNetRpt(p,"rcv hello ack\n");
|
|
591
|
+ rc = _cmRtNetRecvAck(p,fromAddr,kWaitHelloAckStNetId,kSendEndpointStNetId);
|
|
592
|
+ break;
|
|
593
|
+
|
|
594
|
+ case kEndpointAckSelNetId: // master response
|
|
595
|
+ _cmRtNetRpt(p,"rcv endpoint ack\n");
|
|
596
|
+ rc = _cmRtNetRecvAck(p,fromAddr,kWaitEndpointAckStNetId,kSendEndpointStNetId);
|
|
597
|
+ break;
|
|
598
|
+
|
|
599
|
+ default:
|
|
600
|
+ break;
|
|
601
|
+ }
|
|
602
|
+
|
|
603
|
+ errLabel:
|
|
604
|
+ return rc;
|
|
605
|
+}
|
|
606
|
+
|
|
607
|
+
|
|
608
|
+cmRtNetRC_t _cmRtNetSendNodeSync( cmRtNet_t* p, cmRtNetNode_t* np )
|
|
609
|
+{
|
|
610
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
611
|
+
|
|
612
|
+ switch( np->state )
|
|
613
|
+ {
|
|
614
|
+ case kSendHelloStNetId:
|
|
615
|
+ // send a 'hello' to this remote node
|
|
616
|
+ if((rc = _cmRtNetSendSyncMsg(p,np,kHelloSelNetId,p->localNode->label, cmInvalidId, kWaitHelloAckStNetId )) != kOkNetRC )
|
|
617
|
+ rc = cmErrMsg(&p->err,rc,"Send 'hello' to %s:%s:%i failed.",cmStringNullGuard(np->label),cmStringNullGuard(np->addr),np->port);
|
|
618
|
+ else
|
|
619
|
+ _cmRtNetRpt(p,"send hello\n");
|
|
620
|
+ break;
|
|
621
|
+
|
|
622
|
+ case kSendEndpointStNetId:
|
|
623
|
+ {
|
|
624
|
+ cmRtNetEnd_t* ep;
|
|
625
|
+
|
|
626
|
+ // if all of the endpoints have been sent to this node ...
|
|
627
|
+ if((ep = _cmRtNetIndexToEndpoint(p,p->localNode,np->epIdx)) == NULL )
|
|
628
|
+ np->state = kDoneStNetId; // ... we are done
|
|
629
|
+ else
|
|
630
|
+ {
|
|
631
|
+ // send an endpoint to this node
|
|
632
|
+ if((rc = _cmRtNetSendSyncMsg(p,np,kHelloSelNetId,ep->endPtLabel, ep->endPtId, kWaitEndpointAckStNetId )) != kOkNetRC )
|
|
633
|
+ rc = cmErrMsg(&p->err,rc,"Endpoint (%s index:%i) transmission to %s:%s:%i failed.",cmStringNullGuard(ep->endPtLabel),cmStringNullGuard(np->label),cmStringNullGuard(np->addr),np->port);
|
|
634
|
+ else
|
|
635
|
+ _cmRtNetRpt(p,"send endpoint\n");
|
|
636
|
+
|
|
637
|
+ }
|
|
638
|
+ }
|
|
639
|
+ break;
|
|
640
|
+
|
|
641
|
+ case kWaitHelloAckStNetId:
|
|
642
|
+ case kWaitEndpointAckStNetId:
|
|
643
|
+ {
|
|
644
|
+ cmTimeSpec_t t;
|
|
645
|
+ cmTimeGet(&t);
|
|
646
|
+ unsigned fiveSecs = 5000000;
|
|
647
|
+ if( cmTimeElapsedMicros(&np->lastSendTime,&t) > fiveSecs)
|
|
648
|
+ {
|
|
649
|
+ const cmChar_t* ackStr = np->state==kWaitHelloAckStNetId ? "hello" : "endpoint";
|
|
650
|
+ rc = cmErrMsg(&p->err,kTimeOutErrNetRC,"The node %s:%s:%i did not give a '%s' acknowledge.",cmStringNullGuard(np->label),cmStringNullGuard(np->addr),np->port,ackStr);
|
|
651
|
+ }
|
|
652
|
+ }
|
|
653
|
+ break;
|
|
654
|
+
|
|
655
|
+ default:
|
|
656
|
+ break;
|
|
657
|
+ }
|
|
658
|
+
|
|
659
|
+ // if an error occurred put the node into an error state
|
|
660
|
+ if( rc != kOkNetRC )
|
|
661
|
+ np->state = kErrorStNetId;
|
|
662
|
+
|
|
663
|
+ return rc;
|
|
664
|
+}
|
|
665
|
+
|
|
666
|
+
|
|
667
|
+
|
|
668
|
+cmRtNetRC_t cmRtNetSyncModeSend( cmRtNetH_t h )
|
|
669
|
+{
|
|
670
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
671
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
672
|
+
|
|
673
|
+ if( p->syncModeFl == false )
|
|
674
|
+ return rc;
|
|
675
|
+
|
|
676
|
+ unsigned activeCnt = 0;
|
|
677
|
+ cmRtNetNode_t* np = p->nodes;
|
|
678
|
+ for(; np != NULL; np=np->link )
|
|
679
|
+ if( np != p->localNode && np->state != kDoneStNetId && np->state != kErrorStNetId )
|
|
680
|
+ {
|
|
681
|
+ _cmRtNetSendNodeSync(p,np);
|
|
682
|
+ activeCnt += 1;
|
|
683
|
+ }
|
|
684
|
+
|
|
685
|
+ if( activeCnt == 0 )
|
|
686
|
+ p->syncModeFl = false;
|
|
687
|
+
|
|
688
|
+ return rc;
|
|
689
|
+}
|
|
690
|
+
|
|
691
|
+
|
|
692
|
+cmRtNetRC_t cmRtNetReceive( cmRtNetH_t h )
|
|
693
|
+{
|
|
694
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
695
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
696
|
+
|
|
697
|
+ if( cmUdpGetAvailData(p->udpH, NULL, NULL, NULL ) != kOkUdpRC )
|
|
698
|
+ {
|
|
699
|
+ cmErrMsg(&p->err,kUdpPortFailNetRC,"UDP port query failed.");
|
|
700
|
+ goto errLabel;
|
|
701
|
+ }
|
|
702
|
+ errLabel:
|
|
703
|
+ return rc;
|
|
704
|
+}
|
|
705
|
+
|
|
706
|
+unsigned cmRtNetEndPointIndex( cmRtNetH_t h, const cmChar_t* nodeLabel, const cmChar_t* endPtLabel )
|
|
707
|
+{
|
|
708
|
+ //cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
709
|
+ return cmInvalidIdx;
|
|
710
|
+}
|
|
711
|
+
|
|
712
|
+cmRtNetRC_t cmRtNetSend( cmRtNetH_t h, unsigned endPointIndex, const void* msg, unsigned msgByteCnt )
|
|
713
|
+{
|
|
714
|
+ cmRtNetRC_t rc = kOkNetRC;
|
|
715
|
+ //cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
716
|
+ return rc;
|
|
717
|
+}
|
|
718
|
+
|
|
719
|
+void cmRtNetReport( cmRtNetH_t h )
|
|
720
|
+{
|
|
721
|
+ cmRtNet_t* p = _cmRtNetHandleToPtr(h);
|
|
722
|
+ cmRpt_t* rpt = p->err.rpt;
|
|
723
|
+
|
|
724
|
+ cmRptPrintf(rpt,"Sync Mode:%s\n",p->syncModeFl ? "ON" : "OFF");
|
|
725
|
+
|
|
726
|
+ cmRtNetNode_t* np = p->nodes;
|
|
727
|
+ for(; np!=NULL; np=np->link)
|
|
728
|
+ {
|
|
729
|
+ cmRptPrintf(rpt,"Node: %s ",np->label);
|
|
730
|
+
|
|
731
|
+ if( np->addr != NULL )
|
|
732
|
+ cmRptPrintf(rpt,"%s ",np->addr );
|
|
733
|
+
|
|
734
|
+ if( cmIsFlag(np->flags,kLocalNetFl) )
|
|
735
|
+ cmRptPrintf(rpt,"LOCAL ");
|
|
736
|
+
|
|
737
|
+ if( cmIsFlag(np->flags,kSockAddrNetFl) )
|
|
738
|
+ cmRptPrintf(rpt,"%s ",cmStringNullGuard(cmUdpAddrToString(p->udpH,&np->sockaddr)));
|
|
739
|
+
|
|
740
|
+ if( np->port != cmInvalidId )
|
|
741
|
+ cmRptPrintf(rpt,"%i ",np->port );
|
|
742
|
+
|
|
743
|
+ cmRptPrintf(rpt,"\n");
|
|
744
|
+
|
|
745
|
+ cmRtNetEnd_t* ep = np->ends;
|
|
746
|
+ for(; ep!=NULL; ep=ep->link)
|
|
747
|
+ {
|
|
748
|
+ cmRptPrintf(rpt," endpt: %i %s\n",ep->endPtId,cmStringNullGuard(ep->endPtLabel));
|
|
749
|
+ }
|
|
750
|
+ }
|
|
751
|
+}
|