2 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #ifndef _EVENT2_EVENT_STRUCT_H_
28 #define _EVENT2_EVENT_STRUCT_H_
30 /** @file event2/event_struct.h
32 Structures used by event.h. Using these structures directly WILL harm
33 forward compatibility: be careful.
35 No field declared in this file should be used directly in user code. Except
36 for historical reasons, these fields would not be exposed at all.
43 #include <event2/event-config.h>
44 #ifdef _EVENT_HAVE_SYS_TYPES_H
45 #include <sys/types.h>
47 #ifdef _EVENT_HAVE_SYS_TIME_H
52 #include <event2/util.h>
55 #include <event2/keyvalq_struct.h>
57 #define EVLIST_TIMEOUT 0x01
58 #define EVLIST_INSERTED 0x02
59 #define EVLIST_SIGNAL 0x04
60 #define EVLIST_ACTIVE 0x08
61 #define EVLIST_INTERNAL 0x10
62 #define EVLIST_INIT 0x80
64 /* EVLIST_X_ Private space: 0x1000-0xf000 */
65 #define EVLIST_ALL (0xf000 | 0x9f)
67 /* Fix so that people don't have to run with <sys/queue.h> */
69 #define _EVENT_DEFINED_TQENTRY
70 #define TAILQ_ENTRY(type) \
72 struct type *tqe_next; /* next element */ \
73 struct type **tqe_prev; /* address of previous next element */ \
75 #endif /* !TAILQ_ENTRY */
78 #define _EVENT_DEFINED_TQHEAD
79 #define TAILQ_HEAD(name, type) \
81 struct type *tqh_first; \
82 struct type **tqh_last; \
88 TAILQ_ENTRY(event
) ev_active_next
;
89 TAILQ_ENTRY(event
) ev_next
;
90 /* for managing timeouts */
92 TAILQ_ENTRY(event
) ev_next_with_common_timeout
;
95 evutil_socket_t ev_fd
;
97 struct event_base
*ev_base
;
100 /* used for io events */
102 TAILQ_ENTRY(event
) ev_io_next
;
103 struct timeval ev_timeout
;
106 /* used by signal events */
108 TAILQ_ENTRY(event
) ev_signal_next
;
110 /* Allows deletes in callback */
116 short ev_res
; /* result passed to event callback */
118 ev_uint8_t ev_pri
; /* smaller numbers are higher priority */
119 ev_uint8_t ev_closure
;
120 struct timeval ev_timeout
;
122 /* allows us to adopt for different types of events */
123 void (*ev_callback
)(evutil_socket_t
, short, void *arg
);
127 TAILQ_HEAD (event_list
, event
);
129 #ifdef _EVENT_DEFINED_TQENTRY
133 #ifdef _EVENT_DEFINED_TQHEAD
141 #endif /* _EVENT2_EVENT_STRUCT_H_ */