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/*
* Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
* Copyright (c) 2007-2010 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 _EVENT2_EVENT_STRUCT_H_
#define _EVENT2_EVENT_STRUCT_H_
/** @file event_struct.h
Structures used by event.h. Using these structures directly may harm
forward compatibility: be careful!
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <event-config.h>
#ifdef _EVENT_HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef _EVENT_HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
/* For int types. */
#include <event2/util.h>
#define EVLIST_TIMEOUT 0x01
#define EVLIST_INSERTED 0x02
#define EVLIST_SIGNAL 0x04
#define EVLIST_ACTIVE 0x08
#define EVLIST_INTERNAL 0x10
#define EVLIST_INIT 0x80
/* EVLIST_X_ Private space: 0x1000-0xf000 */
#define EVLIST_ALL (0xf000 | 0x9f)
/* Fix so that people don't have to run with <sys/queue.h> */
#ifndef TAILQ_ENTRY
#define _EVENT_DEFINED_TQENTRY
#define TAILQ_ENTRY(type) \
struct { \
struct type *tqe_next; /* next element */ \
struct type **tqe_prev; /* address of previous next element */ \
}
#endif /* !TAILQ_ENTRY */
struct event_base;
struct event {
TAILQ_ENTRY (event) (ev_active_next);
TAILQ_ENTRY (event) (ev_next);
/* for managing timeouts */
union {
TAILQ_ENTRY (event) (ev_next_with_common_timeout);
int min_heap_idx;
} ev_timeout_pos;
evutil_socket_t ev_fd;
struct event_base *ev_base;
union {
/* used for io events */
struct {
TAILQ_ENTRY (event) (ev_io_next);
struct timeval ev_timeout;
} ev_io;
/* used by signal events */
struct {
TAILQ_ENTRY (event) (ev_signal_next);
short ev_ncalls;
/* Allows deletes in callback */
short *ev_pncalls;
} ev_signal;
} _ev;
short ev_events;
short ev_res; /* result passed to event callback */
short ev_flags;
ev_uint8_t ev_pri; /* smaller numbers are higher priority */
ev_uint8_t ev_closure;
struct timeval ev_timeout;
/* allows us to adopt for different types of events */
void (*ev_callback)(evutil_socket_t, short, void *arg);
void *ev_arg;
};
/*
* Key-Value pairs. Can be used for HTTP headers but also for
* query argument parsing.
*/
struct evkeyval {
TAILQ_ENTRY(evkeyval) next;
char *key;
char *value;
};
#ifdef _EVENT_DEFINED_TQENTRY
#undef TAILQ_ENTRY
struct event_list;
struct evkeyvalq;
#undef _EVENT_DEFINED_TQENTRY
#else
TAILQ_HEAD (event_list, event);
TAILQ_HEAD (evkeyvalq, evkeyval);
#endif /* _EVENT_DEFINED_TQENTRY */
#ifdef __cplusplus
}
#endif
#endif /* _EVENT2_EVENT_STRUCT_H_ */
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