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-rw-r--r--Platform/Unix/Mutex.cpp62
1 files changed, 62 insertions, 0 deletions
diff --git a/Platform/Unix/Mutex.cpp b/Platform/Unix/Mutex.cpp
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+/*
+ 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);
+ }
+}