From 2fbd8b690fee9505fbede2bbbf3599f29fd6acbd Mon Sep 17 00:00:00 2001
From: kevin <kevin@larke.org>
Date: Wed, 20 Jan 2021 13:07:36 -0500
Subject: [PATCH] cwmutex.h : Added signalCondVar().

---
 cwMutex.cpp | 20 ++++++++++++++++++--
 cwMutex.h   |  5 +++++
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/cwMutex.cpp b/cwMutex.cpp
index 96c3aa4..6981df6 100644
--- a/cwMutex.cpp
+++ b/cwMutex.cpp
@@ -27,10 +27,10 @@ namespace cw
       int sysRC;
     
       if((sysRC = pthread_cond_destroy(&p->cvar)) != 0)
-        cwLogSysError(kObjFreeFailRC,sysRC,"Thread condition var. destroy failed.");
+        rc = cwLogSysError(kObjFreeFailRC,sysRC,"Thread condition var. destroy failed.");
       else
         if((sysRC = pthread_mutex_destroy(&p->mutex)) != 0)
-          cwLogSysError(kObjFreeFailRC,sysRC,"Thread mutex destroy failed.");
+          rc = cwLogSysError(kObjFreeFailRC,sysRC,"Thread mutex destroy failed.");
         else
           mem::release(p);
     
@@ -53,6 +53,8 @@ cw::rc_t cw::mutex::create(  handle_t& h )
   else
     if((sysRC = pthread_cond_init(&p->cvar,NULL)) != 0 )
       cwLogSysError(kObjAllocFailRC,sysRC,"Thread Condition var. create failed.");
+
+  h.set(p);
   
   return rc;
 }
@@ -155,3 +157,17 @@ cw::rc_t cw::mutex::waitOnCondVar( handle_t h, bool lockThenWaitFl, unsigned tim
   
   
 }
+
+cw::rc_t cw::mutex::signalCondVar( handle_t h)
+{
+
+  rc_t     rc = kOkRC;
+  mutex_t* p  = _handleToPtr(h);
+
+  int sysRC;
+  if((sysRC = pthread_cond_signal(&p->cvar)) != 0 )
+    rc = cwLogSysError(kOpFailRC,sysRC,"Thread cond var. signaling failed.");
+  
+  return rc;
+}
+
diff --git a/cwMutex.h b/cwMutex.h
index f1cdf76..26dc58b 100644
--- a/cwMutex.h
+++ b/cwMutex.h
@@ -14,8 +14,13 @@ namespace cw
     rc_t lock(    handle_t h );
     rc_t unlock(  handle_t h );
 
+    // Set 'lockThenWaitFl' if the function should lock the mutex prior to waiting.
+    // If 'lockThenWaitFl' is false then the function assumes the mutex is already locked
+    // and directly waits. If 'lockThenWaitFl' is set and the mutex is not already locked
+    // then the result is undefined.
     rc_t waitOnCondVar( handle_t h, bool lockThenWaitFl, unsigned timeOutMs );
 
+    rc_t signalCondVar( handle_t h);
   }
 }