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/*
* Copyright (c) 2009-2012 Niels Provos and Nick Mathewson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 DEFER_INTERNAL_H_INCLUDED_
#define DEFER_INTERNAL_H_INCLUDED_
#ifdef __cplusplus
extern "C" {
#endif
#include "event2/event-config.h"
#include "evconfig-private.h"
#include <sys/queue.h>
struct event_callback;
typedef void (*deferred_cb_fn)(struct event_callback *, void *);
/**
Initialize an empty, non-pending event_callback.
@param deferred The struct event_callback structure to initialize.
@param priority The priority that the callback should run at.
@param cb The function to run when the struct event_callback executes.
@param arg The function's second argument.
*/
EVENT2_EXPORT_SYMBOL
void event_deferred_cb_init_(struct event_callback *, ev_uint8_t, deferred_cb_fn, void *);
/**
Change the priority of a non-pending event_callback.
*/
void event_deferred_cb_set_priority_(struct event_callback *, ev_uint8_t);
/**
Cancel a struct event_callback if it is currently scheduled in an event_base.
*/
EVENT2_EXPORT_SYMBOL
void event_deferred_cb_cancel_(struct event_base *, struct event_callback *);
/**
Activate a struct event_callback if it is not currently scheduled in an event_base.
Return true if it was not previously scheduled.
*/
EVENT2_EXPORT_SYMBOL
int event_deferred_cb_schedule_(struct event_base *, struct event_callback *);
#ifdef __cplusplus
}
#endif
#endif /* EVENT_INTERNAL_H_INCLUDED_ */