added: a deadlock counter to Synchro class

now we can use Lock() more than one in the same thread
       and next Unlock() will recognize it
       sample:
       Lock(); // first lock -- resources locked
       Lock(); // second lock -- skipped (counter incremented)
       ...
       Unlock(); // first unlock -- skipped (because counter greater than zero)
       Unlock(); // second unlock -- actually unlocking


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@830 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/plugin.h

@@ -225,19 +225,20 @@ private:
 	Synchro   * synchro;
 	SessionManager * session_manager;
 
-	std::wstring temp_path;
+	std::wstring temp_path;	// used when loading plugins
+	std::string afilename;
 
 	Plugins plugins;
 	
 	typedef std::multimap<int, Slot> Slots;
 	Slots slots;
-	
-	std::string afilename;
 
 	void * LoadInitFun(const char * filename, Fun1 & fun_init);
 	void Call(Session * ses, int message, Slots::iterator & slot, PluginInfo & info);
 
 	bool SetPointers(PluginInfo & info);
+	void Lock();
+	void Unlock();
 };