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/*
* Copyright (c) 2008, XenSource Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of XenSource Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SCHEDULER_H_
#define _SCHEDULER_H_
#include <sys/select.h>
#include "list.h"
#define SCHEDULER_POLL_READ_FD 0x1
#define SCHEDULER_POLL_WRITE_FD 0x2
#define SCHEDULER_POLL_EXCEPT_FD 0x4
#define SCHEDULER_POLL_TIMEOUT 0x8
typedef int event_id_t;
typedef void (*event_cb_t) (event_id_t id, char mode, void *private);
typedef struct scheduler {
fd_set read_fds;
fd_set write_fds;
fd_set except_fds;
struct list_head events;
int uuid;
int max_fd;
int timeout;
int restart;
int max_timeout;
} scheduler_t;
void scheduler_initialize(scheduler_t *);
event_id_t scheduler_register_event(scheduler_t *, char mode,
int fd, int timeout,
event_cb_t cb, void *private);
void scheduler_unregister_event(scheduler_t *, event_id_t);
void scheduler_set_max_timeout(scheduler_t *, int);
int scheduler_wait_for_events(scheduler_t *);
#endif
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