1 // Copyright (C) 2013 The Libphonenumber Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // Author: Philippe Liard 16 17 #ifndef I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_ 18 #define I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_ 19 20 #include <pthread.h> 21 22 #include "phonenumbers/base/basictypes.h" 23 #include "phonenumbers/base/logging.h" 24 25 namespace i18n { 26 namespace phonenumbers { 27 28 class Lock { 29 public: Lock()30 Lock() { 31 const int ret = pthread_mutex_init(&mutex_, NULL); 32 (void) ret; 33 DCHECK_EQ(0, ret); 34 } 35 ~Lock()36 ~Lock() { 37 const int ret = pthread_mutex_destroy(&mutex_); 38 (void) ret; 39 DCHECK_EQ(0, ret); 40 } 41 Acquire()42 void Acquire() const { 43 int ret = pthread_mutex_lock(&mutex_); 44 (void) ret; 45 DCHECK_EQ(0, ret); 46 } 47 Release()48 void Release() const { 49 int ret = pthread_mutex_unlock(&mutex_); 50 (void) ret; 51 DCHECK_EQ(0, ret); 52 } 53 54 private: 55 DISALLOW_COPY_AND_ASSIGN(Lock); 56 57 mutable pthread_mutex_t mutex_; 58 }; 59 60 } // namespace phonenumbers 61 } // namespace i18n 62 63 #endif // I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_ 64