javacommons/utils/inc/scopedlocks.h
changeset 21 2a9601315dfc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/utils/inc/scopedlocks.h	Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,85 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  ScopedLocks
+*
+*/
+
+#ifndef SCOPEDLOCKS_H
+#define SCOPEDLOCKS_H
+
+#include <pthread.h>
+
+#include "logger.h"
+
+namespace java
+{
+namespace util
+{
+
+class ScopedMutex
+{
+public:
+    ScopedMutex()
+    {
+        pthread_mutexattr_t mutex_attr;
+        pthread_mutexattr_init(&mutex_attr);
+        pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
+        pthread_mutex_init(&mMutex, &mutex_attr);
+        pthread_mutexattr_destroy(&mutex_attr);
+    }
+    ~ScopedMutex()
+    {
+        pthread_mutex_destroy(&mMutex);
+    }
+    int lock()
+    {
+        return pthread_mutex_lock(&mMutex);
+    }
+    int unlock()
+    {
+        return pthread_mutex_unlock(&mMutex);
+    }
+
+private:
+    pthread_mutex_t mMutex;
+};
+
+class ScopedLock
+{
+public:
+    ScopedLock(ScopedMutex& aMutex):mMutex(aMutex)
+    {
+        int status = mMutex.lock();
+        if (0 != status)
+        {
+            ELOG1(EUtils, "ScopedLock().mutex.lock() failed with %d", status);
+        }
+    }
+    ~ScopedLock()
+    {
+        int status = mMutex.unlock();
+        if (0 != status)
+        {
+            ELOG1(EUtils, "ScopedLock().mutex.unlock() failed with %d", status);
+        }
+    }
+private:
+    ScopedMutex& mMutex;
+};
+
+} //end namespace util
+} //end namespace java
+
+#endif // SCOPEDLOCKS_H
+