added: Lock class -- locking resources by using Synchro object

the destructor automatically calls Unlock()



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@886 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/lock.cpp

@@ -0,0 +1,49 @@
+/*
+ * This file is a part of Winix
+ * and is not publicly distributed
+ * 
+ * Copyright (c) 2012, Tomasz Sowa
+ * All rights reserved.
+ * 
+ */
+ 
+#include "lock.h"
+
+
+
+Lock::Lock()
+{
+	synchro = 0;
+}
+
+
+Lock::Lock(Synchro * synchro_)
+{
+	synchro = synchro_;
+	synchro->Lock();
+}
+
+
+Lock::Lock(Synchro & synchro_)
+{
+	synchro = &synchro_;
+	synchro->Lock();
+}
+
+
+Lock::~Lock()
+{
+	Unlock();
+}
+
+
+void Lock::Unlock()
+{
+	if( synchro )
+	{
+		synchro->Unlock();
+		synchro = 0;
+	}
+}
+
+