forked from premiere/premiere-libtorrent
137 lines
3.3 KiB
C++
137 lines
3.3 KiB
C++
/*
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Copyright (c) 2010, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "libtorrent/thread.hpp"
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#include "libtorrent/assert.hpp"
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#ifdef TORRENT_BEOS
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#include <kernel/OS.h>
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#endif
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namespace libtorrent
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{
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void sleep(int milliseconds)
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{
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#if defined TORRENT_WINDOWS || defined TORRENT_CYGWIN
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Sleep(milliseconds);
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#elif defined TORRENT_BEOS
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snooze_until(system_time() + boost::int64_t(milliseconds) * 1000, B_SYSTEM_TIMEBASE);
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#else
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usleep(milliseconds * 1000);
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#endif
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}
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#ifdef BOOST_HAS_PTHREADS
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condition::condition()
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{
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pthread_cond_init(&m_cond, 0);
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}
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condition::~condition()
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{
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pthread_cond_destroy(&m_cond);
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}
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void condition::wait(mutex::scoped_lock& l)
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{
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TORRENT_ASSERT(l.locked());
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// wow, this is quite a hack
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pthread_cond_wait(&m_cond, (::pthread_mutex_t*)&l.mutex());
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}
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void condition::signal_all(mutex::scoped_lock& l)
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{
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TORRENT_ASSERT(l.locked());
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pthread_cond_broadcast(&m_cond);
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}
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#elif defined TORRENT_WINDOWS || defined TORRENT_CYGWIN
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condition::condition()
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: m_num_waiters(0)
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{
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m_sem = CreateSemaphore(0, 0, INT_MAX, 0);
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}
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condition::~condition()
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{
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CloseHandle(m_sem);
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}
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void condition::wait(mutex::scoped_lock& l)
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{
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TORRENT_ASSERT(l.locked());
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++m_num_waiters;
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l.unlock();
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WaitForSingleObject(m_sem, INFINITE);
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l.lock();
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--m_num_waiters;
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}
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void condition::signal_all(mutex::scoped_lock& l)
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{
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TORRENT_ASSERT(l.locked());
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ReleaseSemaphore(m_sem, m_num_waiters, 0);
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}
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#elif defined TORRENT_BEOS
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condition::condition()
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: m_num_waiters(0)
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{
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m_sem = create_sem(0, 0);
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}
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condition::~condition()
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{
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delete_sem(m_sem);
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}
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void condition::wait(mutex::scoped_lock& l)
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{
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TORRENT_ASSERT(l.locked());
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++m_num_waiters;
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l.unlock();
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acquire_sem(m_sem);
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l.lock();
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--m_num_waiters;
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}
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void condition::signal_all(mutex::scoped_lock& l)
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{
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TORRENT_ASSERT(l.locked());
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release_sem_etc(m_sem, m_num_waiters, 0);
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}
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#else
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#error not implemented
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#endif
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}
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