1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SCOPED_PTHREAD_MUTEX_LOCK_H_included 18 #define SCOPED_PTHREAD_MUTEX_LOCK_H_included 19 20 #include <pthread.h> 21 22 /** 23 * Locks and unlocks a pthread_mutex_t as it goes in and out of scope. 24 */ 25 class ScopedPthreadMutexLock { 26 public: ScopedPthreadMutexLock(pthread_mutex_t * mutex)27 explicit ScopedPthreadMutexLock(pthread_mutex_t* mutex) : mMutexPtr(mutex) { 28 pthread_mutex_lock(mMutexPtr); 29 } 30 ~ScopedPthreadMutexLock()31 ~ScopedPthreadMutexLock() { 32 pthread_mutex_unlock(mMutexPtr); 33 } 34 35 private: 36 pthread_mutex_t* mMutexPtr; 37 38 // Disallow copy and assignment. 39 ScopedPthreadMutexLock(const ScopedPthreadMutexLock&); 40 void operator=(const ScopedPthreadMutexLock&); 41 }; 42 43 #endif // SCOPED_PTHREAD_MUTEX_LOCK_H_included 44