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/*
Copyright (C) 2004-2008 Grame
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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.
*/
#ifndef __JackPosixSemaphore__
#define __JackPosixSemaphore__
#include "JackSynchro.h"
#include "JackCompilerDeps.h"
#include <semaphore.h>
#include <time.h>
#include <assert.h>
namespace Jack
{
/*!
\brief Inter process synchronization using POSIX semaphore.
*/
class SERVER_EXPORT JackPosixSemaphore : public detail::JackSynchro
{
private:
sem_t* fSemaphore;
bool fPromiscuous;
#ifdef __linux__
int fPromiscuousGid;
#endif
protected:
void BuildName(const char* name, const char* server_name, char* res, int size);
public:
JackPosixSemaphore();
bool Signal();
bool SignalAll();
bool Wait();
bool TimedWait(long usec);
bool Allocate(const char* name, const char* server_name, int value);
bool Connect(const char* name, const char* server_name);
bool ConnectInput(const char* name, const char* server_name);
bool ConnectOutput(const char* name, const char* server_name);
bool Disconnect();
void Destroy();
};
} // end of namespace
#endif
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