jack2/posix/JackFifo.h

72 lines
1.8 KiB
C++

/*
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 __JackFifo__
#define __JackFifo__
#include "JackSynchro.h"
#include "JackCompilerDeps.h"
#include <assert.h>
#include <poll.h>
namespace Jack
{
/*!
\brief Inter process synchronization using Fifo.
*/
class SERVER_EXPORT JackFifo : public detail::JackSynchro
{
private:
int fFifo;
pollfd fPoll;
bool ConnectAux(const char* name, const char* server_name, int access);
protected:
void BuildName(const char* name, const char* server_name, char* res, int size);
public:
JackFifo():JackSynchro(), fFifo(-1)
{}
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