| Egor Pasko | 167ac2b | 2010-05-18 12:26:51 | [diff] [blame^] | 1 | // condition_variable -*- C++ -*- |
| 2 | |
| 3 | // Copyright (C) 2008, 2009 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 |
| 30 | { |
| 31 | condition_variable::condition_variable() |
| 32 | { |
| 33 | #ifdef __GTHREAD_COND_INIT |
| 34 | __native_type __tmp = __GTHREAD_COND_INIT; |
| 35 | _M_cond = __tmp; |
| 36 | #else |
| 37 | int __e = __gthread_cond_init(&_M_cond, NULL); |
| 38 | |
| 39 | if (__e) |
| 40 | __throw_system_error(__e); |
| 41 | #endif |
| 42 | } |
| 43 | |
| 44 | condition_variable::~condition_variable() |
| 45 | { |
| 46 | // XXX no thread blocked |
| 47 | /* int __e = */ __gthread_cond_destroy(&_M_cond); |
| 48 | // if __e == EBUSY then blocked |
| 49 | } |
| 50 | |
| 51 | void |
| 52 | condition_variable::wait(unique_lock<mutex>& __lock) |
| 53 | { |
| 54 | int __e = __gthread_cond_wait(&_M_cond, __lock.mutex()->native_handle()); |
| 55 | |
| 56 | if (__e) |
| 57 | __throw_system_error(__e); |
| 58 | } |
| 59 | |
| 60 | void |
| 61 | condition_variable::notify_one() |
| 62 | { |
| 63 | int __e = __gthread_cond_signal(&_M_cond); |
| 64 | |
| 65 | // XXX not in spec |
| 66 | // EINVAL |
| 67 | if (__e) |
| 68 | __throw_system_error(__e); |
| 69 | } |
| 70 | |
| 71 | void |
| 72 | condition_variable::notify_all() |
| 73 | { |
| 74 | int __e = __gthread_cond_broadcast(&_M_cond); |
| 75 | |
| 76 | // XXX not in spec |
| 77 | // EINVAL |
| 78 | if (__e) |
| 79 | __throw_system_error(__e); |
| 80 | } |
| 81 | |
| 82 | condition_variable_any::condition_variable_any() |
| 83 | { |
| 84 | #ifdef __GTHREAD_COND_INIT |
| 85 | __native_type __tmp = __GTHREAD_COND_INIT; |
| 86 | _M_cond = __tmp; |
| 87 | #else |
| 88 | int __e = __gthread_cond_init(&_M_cond, NULL); |
| 89 | |
| 90 | if (__e) |
| 91 | __throw_system_error(__e); |
| 92 | #endif |
| 93 | } |
| 94 | |
| 95 | condition_variable_any::~condition_variable_any() |
| 96 | { |
| 97 | __gthread_cond_destroy(&_M_cond); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1 |
