1 files changed, 17 insertions, 1 deletions
diff --git a/include/m_system_cpp.h b/include/m_system_cpp.h
index ea8098f24a..4c8656b4e2 100644
--- a/include/m_system_cpp.h
+++ b/include/m_system_cpp.h
@@ -51,7 +51,7 @@ public:
 };
 
 ///////////////////////////////////////////////////////////////////////////////
-// mir_cslock - automatic locker for the critical sections
+// mir_cslock - simple locker for the critical sections
 
 class mir_cslock
 {
@@ -63,6 +63,22 @@ public:
 };
 
 ///////////////////////////////////////////////////////////////////////////////
+// mir_cslockfull - controllable locker for the critical sections
+
+class mir_cslockfull
+{
+	CRITICAL_SECTION& cs;
+	bool bIsLocked;
+
+public:
+	__inline void lock() { bIsLocked = true; EnterCriticalSection(&cs); }
+	__inline void unlock() { bIsLocked = false; LeaveCriticalSection(&cs); }
+
+	__inline mir_cslockfull(CRITICAL_SECTION& _cs) : cs(_cs) { lock(); }
+	__inline ~mir_cslockfull() { if (bIsLocked) unlock(); }
+};
+
+///////////////////////////////////////////////////////////////////////////////
 // basic class for classes that should be cleared inside new()
 
 class MZeroedObject