2009/3/10 Daniele Barzotti
<daniele.barzotti@eurocomtel.com>
Hi,
I'm tring to use lock_guard, but I have some doubts...
I have a method called OnDataReceived() which is called by another class
through a signal.
void ATDispatcher::OnDataReceived()
{
boost::lock_guard<boost::mutex> lock(_mut);
// Data received from RS232
_device.GetData(_buffer);
// .... CODE ....
// unlock the mutex before notifications
lock.~lock_guard();
You should not manually call destructors of automatic (stack allocated) objects. It's an Undefined Behavior and in practice it usually causes destructor to be called twice. You might want to put lock_guard in additional scope.
{
boost::lock_guard<boost::mutex> lock(_mut);
// Data received from RS232
_device.GetData(_buffer);
// .... CODE ....
} // Destructor of lock is called here.
signal_OnData(); }