Add TrueCrypt 7.1a MacOSX/Linux specific source files.

src/Platform/Unix/Mutex.cpp

@@ -0,0 +1,62 @@
+/*
+ Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#include <pthread.h>
+#include "Platform/Mutex.h"
+#include "Platform/SystemException.h"
+
+namespace TrueCrypt
+{
+	Mutex::Mutex ()
+	{
+		pthread_mutexattr_t attributes;
+
+		int status = pthread_mutexattr_init (&attributes);
+		if (status != 0)
+			throw SystemException (SRC_POS, status);
+
+		status = pthread_mutexattr_settype (&attributes, PTHREAD_MUTEX_RECURSIVE);
+		if (status != 0)
+			throw SystemException (SRC_POS, status);
+
+		status = pthread_mutex_init (&SystemMutex, &attributes);
+		if (status != 0)
+			throw SystemException (SRC_POS, status);
+
+		Initialized = true;
+	}
+
+	Mutex::~Mutex ()
+	{
+		Initialized = false;
+#ifdef DEBUG
+		int status =
+#endif
+		pthread_mutex_destroy (&SystemMutex);
+
+#ifdef DEBUG
+		if (status != 0)
+			SystemLog::WriteException (SystemException (SRC_POS, status));
+#endif
+	}
+
+	void Mutex::Lock ()
+	{
+		assert (Initialized);
+		int status = pthread_mutex_lock (&SystemMutex);
+		if (status != 0)
+			throw SystemException (SRC_POS, status);
+	}
+
+	void Mutex::Unlock ()
+	{
+		int status = pthread_mutex_unlock (&SystemMutex);
+		if (status != 0)
+			throw SystemException (SRC_POS, status);
+	}
+}