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/*
* 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.
* Please read the file COPYING, README and AUTHORS for more information.
*
* I/O abstraction interface header
*
* $Id: io.h,v 1.1 2005/07/07 18:38:35 fw Exp $
*/
#ifndef io_H_inclucded
#define io_H_included
#include "portab.h"
#include <sys/time.h>
#define IO_WANTREAD 1
#define IO_WANTWRITE 2
/* init library. sets up epoll/kqueue descriptors and tries to allocate space for ioevlen file descriptors.
ioevlen is just the _initial_ size, not a limit. */
bool io_library_init PARAMS((unsigned int ioevlen));
/* shutdown and free all internal data structures */
bool io_library_shutdown PARAMS((void));
/* add fd to internal set, enable readability check, set callback */
bool io_event_create PARAMS((int fd, short what, void (*cbfunc)(int, short)));
/* change callback function associated with fd */
bool io_event_setcb PARAMS((int fd, void (*cbfunc)(int, short)));
/* watch fd for event of type what */
bool io_event_add PARAMS((int fd, short what));
/* do not watch fd for event of type what */
bool io_event_del PARAMS((int fd, short what));
/* remove fd from watchlist, close() fd. */
bool io_close PARAMS((int fd));
/* set O_NONBLOCK */
bool io_setnonblock PARAMS((int fd));
/* watch fds for activity */
int io_dispatch PARAMS((struct timeval *tv));
#endif /* io_H_included */
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