102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2000-2004 Niels Provos <provos@citi.umich.edu>
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* 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 _EVENT_INTERNAL_H_
|
||
|
|
#define _EVENT_INTERNAL_H_
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include "min_heap.h"
|
||
|
|
#include "evsignal.h"
|
||
|
|
|
||
|
|
struct eventop {
|
||
|
|
const char *name;
|
||
|
|
void *(*init)(struct event_base *);
|
||
|
|
int (*add)(void *, struct event *);
|
||
|
|
int (*del)(void *, struct event *);
|
||
|
|
int (*dispatch)(struct event_base *, void *, struct timeval *);
|
||
|
|
void (*dealloc)(struct event_base *, void *);
|
||
|
|
/* set if we need to reinitialize the event base */
|
||
|
|
int need_reinit;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct event_base {
|
||
|
|
const struct eventop *evsel;
|
||
|
|
void *evbase;
|
||
|
|
int event_count; /* counts number of total events */
|
||
|
|
int event_count_active; /* counts number of active events */
|
||
|
|
|
||
|
|
int event_gotterm; /* Set to terminate loop */
|
||
|
|
int event_break; /* Set to terminate loop immediately */
|
||
|
|
|
||
|
|
/* active event management */
|
||
|
|
struct event_list **activequeues;
|
||
|
|
int nactivequeues;
|
||
|
|
|
||
|
|
/* signal handling info */
|
||
|
|
struct evsignal_info sig;
|
||
|
|
|
||
|
|
struct event_list eventqueue;
|
||
|
|
struct timeval event_tv;
|
||
|
|
|
||
|
|
struct min_heap timeheap;
|
||
|
|
|
||
|
|
struct timeval tv_cache;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Internal use only: Functions that might be missing from <sys/queue.h> */
|
||
|
|
#ifndef HAVE_TAILQFOREACH
|
||
|
|
#define TAILQ_FIRST(head) ((head)->tqh_first)
|
||
|
|
#define TAILQ_END(head) NULL
|
||
|
|
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
|
||
|
|
#define TAILQ_FOREACH(var, head, field) \
|
||
|
|
for((var) = TAILQ_FIRST(head); \
|
||
|
|
(var) != TAILQ_END(head); \
|
||
|
|
(var) = TAILQ_NEXT(var, field))
|
||
|
|
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
|
||
|
|
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
|
||
|
|
(elm)->field.tqe_next = (listelm); \
|
||
|
|
*(listelm)->field.tqe_prev = (elm); \
|
||
|
|
(listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
|
||
|
|
} while (0)
|
||
|
|
#endif /* TAILQ_FOREACH */
|
||
|
|
|
||
|
|
int _evsignal_set_handler(struct event_base *base, int evsignal,
|
||
|
|
void (*fn)(int));
|
||
|
|
int _evsignal_restore_handler(struct event_base *base, int evsignal);
|
||
|
|
|
||
|
|
/* defined in evutil.c */
|
||
|
|
const char *evutil_getenv(const char *varname);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _EVENT_INTERNAL_H_ */
|