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event-queue.h
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event-queue.h
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/*******************************************************************************
Copyright (c) 2016-2018 Vladimir Kondratyev <vladimir@kondratyev.su>
SPDX-License-Identifier: MIT
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*******************************************************************************/
#ifndef __EVENT_QUEUE_H__
#define __EVENT_QUEUE_H__
#include <sys/types.h> /* uint32_t */
#include <sys/uio.h> /* iovec */
#include "sys/inotify.h"
struct event_queue {
struct iovec *iov; /* inotify events to send */
int sb_events; /* number of events enqueued in send buffer */
int mem_events; /* number of events enqueued in memory */
int allocated; /* number of iovs allocated */
int max_events; /* max_queued_events */
struct inotify_event *last; /* Last event sent to socket */
};
void event_queue_init (struct event_queue *eq);
void event_queue_free (struct event_queue *eq);
int event_queue_set_max_events (struct event_queue *eq, int max_events);
int event_queue_enqueue (struct event_queue *eq,
int wd,
uint32_t mask,
uint32_t cookie,
const char *name);
ssize_t event_queue_flush (struct event_queue *eq, size_t sbspace);
void event_queue_reset_last (struct event_queue *eq);
#endif /* __EVENT_QUEUE_H__ */