1 // condition_variable -*- C++ -*- 2 3 // Copyright (C) 2008-2013 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 #include <condition_variable> 26 27 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) 28 29 namespace std _GLIBCXX_VISIBILITY(default) 30 { 31 _GLIBCXX_BEGIN_NAMESPACE_VERSION 32 33 #ifdef __GTHREAD_COND_INIT 34 condition_variable::condition_variable() noexcept = default; 35 #else 36 condition_variable::condition_variable() noexcept 37 { 38 __GTHREAD_COND_INIT_FUNCTION(&_M_cond); 39 } 40 #endif 41 ~condition_variable()42 condition_variable::~condition_variable() noexcept 43 { 44 // XXX no thread blocked 45 /* int __e = */ __gthread_cond_destroy(&_M_cond); 46 // if __e == EBUSY then blocked 47 } 48 49 void wait(unique_lock<mutex> & __lock)50 condition_variable::wait(unique_lock<mutex>& __lock) 51 { 52 int __e = __gthread_cond_wait(&_M_cond, __lock.mutex()->native_handle()); 53 54 if (__e) 55 __throw_system_error(__e); 56 } 57 58 void notify_one()59 condition_variable::notify_one() noexcept 60 { 61 int __e = __gthread_cond_signal(&_M_cond); 62 63 // XXX not in spec 64 // EINVAL 65 if (__e) 66 __throw_system_error(__e); 67 } 68 69 void notify_all()70 condition_variable::notify_all() noexcept 71 { 72 int __e = __gthread_cond_broadcast(&_M_cond); 73 74 // XXX not in spec 75 // EINVAL 76 if (__e) 77 __throw_system_error(__e); 78 } 79 80 condition_variable_any::condition_variable_any() noexcept = default; 81 82 condition_variable_any::~condition_variable_any() noexcept = default; 83 84 _GLIBCXX_END_NAMESPACE_VERSION 85 } // namespace 86 87 #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1 88