Implemented COW into NzMatrix4; Optimized NzString COW

include/Nazara/Math/ThreadSafety.hpp

@@ -0,0 +1,37 @@
+// Copyright (C) 2012 Jérôme Leclercq
+// This file is part of the "Nazara Engine".
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+// Pas de header guard
+
+#include <Nazara/Math/Config.hpp>
+
+// Ces macros peuvent changer pour n'importe quel fichier qui l'utilise, dans une même unité de compilation
+#undef NazaraLock
+#undef NazaraMutex
+#undef NazaraMutexAttrib
+#undef NazaraMutexLock
+#undef NazaraMutexUnlock
+#undef NazaraNamedLock
+
+#if NAZARA_MATH_THREADSAFE && (\
+	(NAZARA_THREADSAFETY_MATRIX3      && (defined(NAZARA_MATRIX3)      || defined(NAZARA_MATRIX3_CPP))) || \
+	(NAZARA_THREADSAFETY_MATRIX4      && (defined(NAZARA_MATRIX4)      || defined(NAZARA_MATRIX4_CPP))))
+
+	#include <Nazara/Core/Lock.hpp>
+	#include <Nazara/Core/Mutex.hpp>
+
+	#define NazaraLock(mutex) NzLock lock_mutex(mutex);
+	#define NazaraMutex(name) NzMutex name;
+	#define NazaraMutexAttrib(name, attribute) attribute NzMutex name;
+	#define NazaraMutexLock(mutex) mutex.Lock();
+	#define NazaraMutexUnlock(mutex) mutex.Unlock();
+	#define NazaraNamedLock(mutex, name) NzLock lock_##name(mutex);
+#else
+	#define NazaraLock(mutex)
+	#define NazaraMutex(name)
+	#define NazaraMutexAttrib(name, attribute)
+	#define NazaraMutexLock(mutex)
+	#define NazaraMutexUnlock(mutex)
+	#define NazaraNamedLock(mutex, name)
+#endif