| // Copyright (C) 1999-2005 Open Source Telecom Corporation. |
| // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. |
| // |
| // This program is free software; you can redistribute it and/or modify |
| // it under the terms of the GNU General Public License as published by |
| // the Free Software Foundation; either version 2 of the License, or |
| // (at your option) any later version. |
| // |
| // This program is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| // |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| // |
| // This exception applies only to the code released under the name GNU |
| // Common C++. If you copy code from other releases into a copy of GNU |
| // Common C++, as the General Public License permits, the exception does |
| // not apply to the code that you add in this way. To avoid misleading |
| // anyone as to the status of such modified files, you must delete |
| // this exception notice from them. |
| // |
| // If you write modifications of your own for GNU Common C++, it is your choice |
| // whether to permit this exception to apply to your modifications. |
| // If you do not wish that, delete this exception notice. |
| // |
| |
| #include <cc++/config.h> |
| #include <cc++/export.h> |
| #include <cc++/thread.h> |
| #include "private.h" |
| |
| #include <cerrno> |
| |
| #ifdef CCXX_NAMESPACES |
| namespace ost { |
| #endif |
| |
| Event::Event() |
| { |
| #ifdef WIN32 |
| cond = ::CreateEvent(NULL, true, false, NULL); |
| if(cond == NULL) |
| THROW(this); |
| #else |
| pthread_mutexattr_t attr; |
| pthread_mutexattr_init(&attr); |
| pthread_mutex_init(&_mutex, &attr); |
| pthread_mutexattr_destroy(&attr); |
| pthread_cond_init(&_cond, NULL); |
| _signaled = false; |
| _count = 0; |
| #endif |
| } |
| |
| Event::~Event() |
| { |
| #ifdef WIN32 |
| ::CloseHandle(cond); |
| #else |
| pthread_cond_destroy(&_cond); |
| pthread_mutex_destroy(&_mutex); |
| #endif |
| } |
| |
| void Event::signal(void) |
| { |
| #ifdef WIN32 |
| ::SetEvent(cond); |
| #else |
| pthread_mutex_lock(&_mutex); |
| _signaled = true; |
| ++_count; |
| pthread_cond_broadcast(&_cond); |
| pthread_mutex_unlock(&_mutex); |
| #endif |
| } |
| |
| void Event::reset(void) |
| { |
| #ifdef WIN32 |
| ::ResetEvent(cond); |
| #else |
| _signaled = false; |
| #endif |
| } |
| |
| bool Event::wait(void) |
| { |
| #ifdef WIN32 |
| return (Thread::waitThread(cond, INFINITE) == WAIT_OBJECT_0); |
| #else |
| return wait(TIMEOUT_INF); |
| #endif |
| } |
| |
| bool Event::wait(timeout_t timer) |
| { |
| #ifdef WIN32 |
| return (Thread::waitThread(cond, timer) == WAIT_OBJECT_0); |
| #else |
| int rc = 0; |
| struct timespec spec; |
| |
| pthread_mutex_lock(&_mutex); |
| long count = _count; |
| while(!_signaled && _count == count) { |
| if(timer != TIMEOUT_INF) |
| rc = pthread_cond_timedwait( |
| &_cond, &_mutex, getTimeout(&spec, timer)); |
| else |
| pthread_cond_wait(&_cond, &_mutex); |
| if(rc == ETIMEDOUT) |
| break; |
| } |
| pthread_mutex_unlock(&_mutex); |
| if(rc == ETIMEDOUT) |
| return false; |
| return true; |
| #endif |
| } |
| |
| #ifdef CCXX_NAMESPACES |
| } |
| #endif |
| |
| /** EMACS ** |
| * Local variables: |
| * mode: c++ |
| * c-basic-offset: 4 |
| * End: |
| */ |