mirror of
https://github.com/rajkosto/mxoemu
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123 lines
2.5 KiB
C++
123 lines
2.5 KiB
C++
/**
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** \file Semaphore.cpp
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** \date 2007-04-13
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** \author grymse@alhem.net
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**/
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/*
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Copyright (C) 2007-2010 Anders Hedstrom
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This library is made available under the terms of the GNU GPL, with
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the additional exemption that compiling, linking, and/or using OpenSSL
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is allowed.
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If you would like to use this library in a closed-source application,
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a separate license agreement is available. For information about
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the closed-source license agreement for the C++ sockets library,
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please visit http://www.alhem.net/Sockets/license.html and/or
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email license@alhem.net.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "Semaphore.h"
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#ifdef SOCKETS_NAMESPACE
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namespace SOCKETS_NAMESPACE {
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#endif
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// ---------------------------------------------------------------
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#ifdef _WIN32
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Semaphore::Semaphore(value_t start_val)
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{
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m_handle = ::CreateSemaphore((LPSECURITY_ATTRIBUTES)NULL, start_val, 1, (LPCTSTR)NULL);
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}
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Semaphore::~Semaphore()
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{
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::CloseHandle(m_handle);
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}
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int Semaphore::Post()
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{
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return (::ReleaseSemaphore(m_handle, 1, (LPLONG)NULL) != 0) ? 0 : -1;
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}
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int Semaphore::Wait()
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{
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return (WaitForSingleObject(m_handle, INFINITE) == WAIT_OBJECT_0) ? 0 : -1;
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}
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int Semaphore::TryWait()
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{
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return -1; // %! not implemented
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}
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int Semaphore::GetValue(int& i)
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{
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return 0; // %! not implemented
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}
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// ---------------------------------------------------------------
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#else
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Semaphore::Semaphore(value_t start_val)
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{
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sem_init(&m_sem, 0, start_val);
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}
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Semaphore::~Semaphore()
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{
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sem_destroy(&m_sem);
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}
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int Semaphore::Post()
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{
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return sem_post(&m_sem);
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}
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int Semaphore::Wait()
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{
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return sem_wait(&m_sem);
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}
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int Semaphore::TryWait()
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{
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return sem_trywait(&m_sem);
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}
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int Semaphore::GetValue(int& i)
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{
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return sem_getvalue(&m_sem, &i);
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}
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#endif
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#ifdef SOCKETS_NAMESPACE
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} // namespace SOCKETS_NAMESPACE {
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#endif
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