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_THREAD_CHECKER_H_ 18 #define I18N_PHONENUMBERS_BASE_THREAD_CHECKER_H_ 19 20 #if !defined(I18N_PHONENUMBERS_USE_BOOST) 21 22 // Note that I18N_PHONENUMBERS_NO_THREAD_SAFETY must be defined only to let the 23 // user of the library know that it can't be used in a thread-safe manner when 24 // it is not depending on Boost. 25 #if !defined(__linux__) && !defined(__APPLE__) && !defined(I18N_PHONENUMBERS_HAVE_POSIX_THREAD) && \ 26 !defined(I18N_PHONENUMBERS_NO_THREAD_SAFETY) && \ 27 !((__cplusplus >= 201103L) && defined(I18N_PHONENUMBERS_USE_STDMUTEX)) && \ 28 !defined(WIN32) 29 #error Building without Boost, please provide \ 30 -DI18N_PHONENUMBERS_NO_THREAD_SAFETY 31 #endif 32 33 #endif 34 35 #if !defined(NDEBUG) && !defined(I18N_PHONENUMBERS_USE_BOOST) && \ 36 (defined(__linux__) || defined(__APPLE__) || defined(I18N_PHONENUMBERS_HAVE_POSIX_THREAD)) 37 38 #include <pthread.h> 39 40 namespace i18n { 41 namespace phonenumbers { 42 43 class ThreadChecker { 44 public: ThreadChecker()45 ThreadChecker() : thread_id_(pthread_self()) {} 46 CalledOnValidThread()47 bool CalledOnValidThread() const { 48 return thread_id_ == pthread_self(); 49 } 50 51 private: 52 const pthread_t thread_id_; 53 }; 54 55 #else 56 57 namespace i18n { 58 namespace phonenumbers { 59 60 class ThreadChecker { 61 public: 62 bool CalledOnValidThread() const { 63 return true; 64 } 65 }; 66 67 #endif 68 69 } // namespace phonenumbers 70 } // namespace i18n 71 72 #endif // I18N_PHONENUMBERS_BASE_THREAD_CHECKER_H_ 73