upgraded event subscription logic

src/ca/recvProcessThread.cpp

@@ -34,7 +34,8 @@ recvProcessThread::recvProcessThread (cac *pcacIn) :
 
 recvProcessThread::~recvProcessThread ()
 {
-    this->signalShutDown ();
+    this->shutDown = true;
+    this->recvActivity.signal ();
     this->exit.wait ();
 }
 
@@ -71,12 +72,6 @@ void recvProcessThread::run ()
     this->exit.signal ();
 }
 
-void recvProcessThread::signalShutDown ()
-{
-    this->shutDown = true;
-    this->recvActivity.signal ();
-}
-
 void recvProcessThread::enable ()
 {
     unsigned copy;