/*
 *  pipe-sem by Davide Libenzi ( Pipe based semaphore implementation )
 *  Copyright (C) 1998  Davide Libenzi
 *
 *  This program 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.
 *
 *  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 General Public License for more details.
 *
 *  You should have received a copy of the GNU 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
 *
 *  Davide Libenzi <davidel@xmailserver.org>
 *
 */

#if !defined(_PIPE_SEM_H)
#define _PIPE_SEM_H


struct pipe_sem {
	int fds[2];
};


int psem_try_down(struct pipe_sem *ps);
int psem_down_timeo(struct pipe_sem *ps, int timeout);
int psem_down(struct pipe_sem *ps);
int psem_up(struct pipe_sem *ps);
int psem_down_fd(struct pipe_sem *ps);
int psem_init(struct pipe_sem *ps, int icnt);
void psem_cleanup(struct pipe_sem *ps);


#endif