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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: http://www.musicpd.org
*
* 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
*/
#ifndef IOOPS_H
#define IOOPS_H
#include <sys/select.h>
struct ioOps {
struct ioOps *prev, *next;
/*
* Called before each 'select' statement.
* To register for IO, call FD_SET for each required queue
* Return the highest fd number you registered
*/
int (*fdset) (fd_set * rfds, fd_set * wfds, fd_set * efds);
/*
* Called after each 'select' statement.
* fdCount is the number of fds total in all sets. It may be 0.
* For each fd you registered for in (fdset), you should FD_CLR it from the
* appropriate queue(s).
* Return the total number of fds left in all sets (Ie, return fdCount
* minus the number of times you called FD_CLR).
*/
int (*consume) (int fdCount, fd_set * rfds, fd_set * wfds,
fd_set * efds);
};
/* Call this to register your io operation handler struct */
void registerIO(struct ioOps *ops);
/* Call this to deregister your io operation handler struct */
void deregisterIO(struct ioOps *ops);
/* Add fds for all registered IO handlers */
void registered_IO_add_fds(int *fdmax,
fd_set * rfds, fd_set * wfds, fd_set * efds);
/* Consume fds for all registered IO handlers */
void registered_IO_consume_fds(int *selret,
fd_set * rfds, fd_set * wfds, fd_set * efds);
#endif
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