mainloop: add LXC_MAINLOOP_ERROR

[mirror_lxc.git] / src / lxc / mainloop.h

/*
 * lxc: linux Container library
 *
 * (C) Copyright IBM Corp. 2007, 2008
 *
 * Authors:
 * Daniel Lezcano <daniel.lezcano at free.fr>
 *
 * 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; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * 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
 */

#ifndef __LXC_MAINLOOP_H
#define __LXC_MAINLOOP_H

#include <stdint.h>
#include "list.h"

#define LXC_MAINLOOP_ERROR -1
#define LXC_MAINLOOP_CONTINUE 0
#define LXC_MAINLOOP_CLOSE 1

struct lxc_epoll_descr {
	int epfd;
	struct lxc_list handlers;
};

typedef int (*lxc_mainloop_callback_t)(int fd, uint32_t event, void *data,
				       struct lxc_epoll_descr *descr);

extern int lxc_mainloop(struct lxc_epoll_descr *descr, int timeout_ms);

extern int lxc_mainloop_add_handler(struct lxc_epoll_descr *descr, int fd,
				    lxc_mainloop_callback_t callback,
				    void *data);

extern int lxc_mainloop_del_handler(struct lxc_epoll_descr *descr, int fd);

extern int lxc_mainloop_open(struct lxc_epoll_descr *descr);

extern int lxc_mainloop_close(struct lxc_epoll_descr *descr);

#endif