MacOSX port, this needs to be portable... epicsMutex, but there is no timedlock.

pvAccessApp/utils/referenceCountingLock.cpp

@@ -41,6 +41,10 @@ ReferenceCountingLock::~ReferenceCountingLock()
 
 bool ReferenceCountingLock::acquire(int64 msecs)
 {
+#ifdef darwin
+    // timedlock not supported by Darwin OS
+ 	return (pthread_mutex_lock(&_mutex) == 0);
+#else
 	struct timespec deltatime;
 	deltatime.tv_sec = msecs / 1000;
 	deltatime.tv_nsec = (msecs % 1000) * 1000;
@@ -51,6 +55,7 @@ bool ReferenceCountingLock::acquire(int64 msecs)
 		return true;
 	}
 	return false;
+#endif
 }
 
 void ReferenceCountingLock::release()

testApp/utils/namedLockPatternTest.cpp

@@ -156,7 +156,7 @@ void* testWorker2(void* p)
 		assert(namedGuard.acquireSynchronizationObject(addr,timeout));
 		usleep(1);
 	}
-
+#ifndef darwin
 	//this thread sleeps a while and gets timeout on lock
 	{
 		sleep(1);
@@ -167,7 +167,7 @@ void* testWorker2(void* p)
 		NamedLock<osiSockAddr,comp_osiSockAddr> namedGuard(namedLockPattern);
 		assert(!namedGuard.acquireSynchronizationObject(addr,timeout));
 	}
-
+#endif
 	return NULL;
 }