Diff: TESTS/mbedmicro-rtos-mbed/threads/LockGuard.h

Revision:

0:5c4d7b2438d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TESTS/mbedmicro-rtos-mbed/threads/LockGuard.h	Fri Nov 11 20:59:50 2016 +0000
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MBEDMICRO_RTOS_MBED_THREADS_LOCK_GUARD
+#define MBEDMICRO_RTOS_MBED_THREADS_LOCK_GUARD
+
+#include <rtos.h>
+
+/**
+ * RAII mutex locker.
+ * The mutex pass in the constructor will be locked for the lifetime of
+ * the LockGuard instance.
+ */
+class LockGuard {
+public:
+    /**
+     * Construct a LockGuard instance and ackire ownership of mutex in input.
+     * @param mutex The mutex to ackire ownership of.
+     */
+    LockGuard(rtos::Mutex& mutex) : _mutex(mutex) {
+        _mutex.lock();
+    }
+
+    /**
+     * Destruct the lock and release the inner mutex.
+     */
+    ~LockGuard() {
+        _mutex.unlock();
+    }
+
+private:
+    LockGuard(const LockGuard&);
+    LockGuard& operator=(const LockGuard&);
+    rtos::Mutex& _mutex;
+};
+
+#endif /* MBEDMICRO_RTOS_MBED_THREADS_LOCK_GUARD */