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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* semaphore.cc
*
* Sat Oct 8 17:44:13 CEST 2005
* Copyright 2005 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of Pracro.
*
* Pracro 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.
*
* Pracro 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 Pracro; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "semaphore.h"
#include <hugin.hpp>
#include <limits>
#ifdef WIN32
#include <windows.h>
#else
// Make sure we don't include /this/ file...
#include <../include/semaphore.h>
#endif
struct semaphore_private_t {
#ifdef WIN32
HANDLE semaphore;
#else
sem_t semaphore;
#endif
};
Semaphore::Semaphore(const char *name)
{
this->name = name;
// DEBUG(semaphore, "Create [%s]\n", name);
prv = new struct semaphore_private_t();
#ifdef WIN32
prv->semaphore = CreateSemaphore(NULL, // default security attributes
0, // initial count
std::numeric_limits<LONG>::max(),
NULL); // unnamed semaphore
#else
sem_init(&prv->semaphore, 0, 0);
#endif
}
Semaphore::~Semaphore()
{
// DEBUG(semaphore, "Delete [%s]\n", name);
#ifdef WIN32
CloseHandle(prv->semaphore);
#else
sem_destroy(&prv->semaphore);
#endif
delete prv;
}
void Semaphore::post()
{
// DEBUG(semaphore, "Post [%s]\n", name);
#ifdef WIN32
ReleaseSemaphore(prv->semaphore, 1, NULL);
#else
sem_post(&prv->semaphore);
#endif
}
void Semaphore::wait()
{
// DEBUG(semaphore, "Wait [%s]\n", name);
#ifdef WIN32
WaitForSingleObject(prv->semaphore, INFINITE);
#else
sem_wait(&prv->semaphore);
#endif
}
#ifdef TEST_SEMAPHORE
//deps:
//cflags: -I.. $(PTHREAD_CFLAGS)
//libs: $(PTHREAD_LIBS)
#include <test.h>
TEST_BEGIN;
// TODO: Put some testcode here (see test.h for usable macros).
TEST_TRUE(false, "No tests yet!");
TEST_END;
#endif/*TEST_SEMAPHORE*/
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