connect(port, SIGNAL(readyRead()), this, SLOT(setReady()));
.............................
waitReadyRead(1000);
if (ready) {
	receiveMsg();
}
..............................
void Thread::setReady()
{
	ready = true;
	emit sendMessage("eee");
}

void Thread::waitReadyRead(int msec)
{
	QTime timer;
	timer.start();
	while ( (timer.elapsed() < msec)) {
		if (ready)
			break;
		msleep(1);
	}
}

void Thread::waitReadyRead(int msec)
{
	QTime timer;
	timer.start();
	while ( (timer.elapsed() < msec)) {
		if (port->bytesAvailable() > 0) {
			ready = true;
			break;
		}
		msleep(1);
	}
}

void qPThRead::run()
{
		
int i;
priem = true;
recivString="";
int len=0;
	if ( ComPort != NULL )
{
	   
	while (priem) {  
	    if ( !stopReciv )
	    {
		
	    len=0;
	    len = ComPort->bytesWaiting() ;
               if ( len == ( unsigned int ) -1 ) continue;
	    if (len >0)
	    {
		stopReciv = true;
		mutex.lock();
		
		
		
		for (i=0; i<len; i++) 
		{
		    recivString +=ComPort->getch();
		}
		
		qPThReadEvent * event = new qPThReadEvent(1001);
		event->String = recivString;
		event->PortName = PortName;

		QApplication::postEvent(TargetWidget, event);

		 recivString = "";
		mutex.unlock();
		}	
	    
	    }
	    }
    }
    
}