1 #ifndef __DALI_INTERNAL_MUTEX_H__
2 #define __DALI_INTERNAL_MUTEX_H__
5 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
31 * @brief Namespace to ensure mutex locking is done correctly.
33 * Displays warnings if two mutex locks are not held by the same thread at any given time which can lead to deadlock.
34 * This can lead to deadlock and should be avoided.
36 * @note lock backtrace needs to be enabled to see the warnings.
42 * @brief Locks the given mutex.
44 * Increments a thread-local storage counter.
46 * @param A pointer to the mutex that should be locked.
48 * @note If the counter is > 1 and lock backtrace is enabled, then the backtrace for all locks will be shown as a warning.
50 void Lock( pthread_mutex_t* mutex );
53 * @brief Unlocks the given mutex.
55 * @param A pointer to the mutex that should be unlocked.
57 * Decrements a thread-local storage counter.
59 void Unlock( pthread_mutex_t* mutex );
63 } // namespace Internal
67 #endif // __DALI_INTERNAL_MUTEX_H__