2006-06-15 19:48:13 +00:00
|
|
|
/*
|
2006-06-26 00:48:02 +00:00
|
|
|
include/proto/fd.h
|
|
|
|
File descriptors states.
|
|
|
|
|
2007-04-08 14:39:58 +00:00
|
|
|
Copyright (C) 2000-2007 Willy Tarreau - w@1wt.eu
|
2006-06-15 19:48:13 +00:00
|
|
|
|
|
|
|
This library 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, version 2.1
|
|
|
|
exclusively.
|
|
|
|
|
|
|
|
This library 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 library; if not, write to the Free Software
|
|
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
*/
|
|
|
|
|
2006-06-26 00:48:02 +00:00
|
|
|
#ifndef _PROTO_FD_H
|
|
|
|
#define _PROTO_FD_H
|
|
|
|
|
2007-04-09 17:29:56 +00:00
|
|
|
#include <stdio.h>
|
2006-06-26 00:48:02 +00:00
|
|
|
#include <sys/time.h>
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
|
2006-06-29 16:54:54 +00:00
|
|
|
#include <common/config.h>
|
2006-06-26 00:48:02 +00:00
|
|
|
#include <types/fd.h>
|
|
|
|
|
|
|
|
/* Deletes an FD from the fdsets, and recomputes the maxfd limit.
|
|
|
|
* The file descriptor is also closed.
|
|
|
|
*/
|
|
|
|
void fd_delete(int fd);
|
2006-06-15 19:48:13 +00:00
|
|
|
|
2007-04-08 14:39:58 +00:00
|
|
|
/* registers all known pollers */
|
|
|
|
void register_pollers();
|
|
|
|
|
|
|
|
/* disable the specified poller */
|
|
|
|
void disable_poller(const char *poller_name);
|
2006-06-15 19:48:13 +00:00
|
|
|
|
2006-10-15 12:52:29 +00:00
|
|
|
/*
|
2007-04-08 14:39:58 +00:00
|
|
|
* Initialize the pollers till the best one is found.
|
|
|
|
* If none works, returns 0, otherwise 1.
|
2006-10-15 12:52:29 +00:00
|
|
|
*/
|
2007-04-08 14:39:58 +00:00
|
|
|
int init_pollers();
|
2006-10-15 12:52:29 +00:00
|
|
|
|
2007-04-09 17:29:56 +00:00
|
|
|
/*
|
|
|
|
* Some pollers may lose their connection after a fork(). It may be necessary
|
|
|
|
* to create initialize part of them again. Returns 0 in case of failure,
|
|
|
|
* otherwise 1. The fork() function may be NULL if unused. In case of error,
|
|
|
|
* the the current poller is destroyed and the caller is responsible for trying
|
|
|
|
* another one by calling init_pollers() again.
|
|
|
|
*/
|
|
|
|
int fork_poller();
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Lists the known pollers on <out>.
|
|
|
|
* Should be performed only before initialization.
|
|
|
|
*/
|
|
|
|
int list_pollers(FILE *out);
|
|
|
|
|
2007-04-08 14:39:58 +00:00
|
|
|
/*
|
|
|
|
* Runs the polling loop
|
|
|
|
*/
|
|
|
|
void run_poller();
|
|
|
|
|
2007-04-08 14:59:42 +00:00
|
|
|
#define EV_FD_SET(fd, ev) (cur_poller.set((fd), (ev)))
|
|
|
|
#define EV_FD_CLR(fd, ev) (cur_poller.clr((fd), (ev)))
|
2007-04-09 13:34:49 +00:00
|
|
|
#define EV_FD_ISSET(fd, ev) (cur_poller.is_set((fd), (ev)))
|
2007-04-08 14:59:42 +00:00
|
|
|
#define EV_FD_COND_S(fd, ev) (cur_poller.cond_s((fd), (ev)))
|
|
|
|
#define EV_FD_COND_C(fd, ev) (cur_poller.cond_c((fd), (ev)))
|
2007-04-08 14:39:58 +00:00
|
|
|
#define EV_FD_REM(fd) (cur_poller.rem(fd))
|
|
|
|
#define EV_FD_CLO(fd) (cur_poller.clo(fd))
|
2006-10-15 12:52:29 +00:00
|
|
|
|
|
|
|
|
2006-06-26 00:48:02 +00:00
|
|
|
/* recomputes the maxfd limit from the fd */
|
|
|
|
static inline void fd_insert(int fd)
|
|
|
|
{
|
|
|
|
if (fd + 1 > maxfd)
|
|
|
|
maxfd = fd + 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* _PROTO_FD_H */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Local variables:
|
|
|
|
* c-indent-level: 8
|
|
|
|
* c-basic-offset: 8
|
|
|
|
* End:
|
|
|
|
*/
|