Re: [Boost-users] How to use lock_guard

On Tue, Mar 10, 2009 at 8:51 AM, Roman Perepelitsa wrote:

[...] 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_guardboost::mutex lock(_mut);   // Data received from RS232   _device.GetData(_buffer);   // .... CODE .... }  // Destructor of lock is called here. signal_OnData(); }

Or use unique_lock or scoped_lock: boost::mutex::scoped_lock lock(_mut); .... lock.unlock(); signal_OnData();