2 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3 * Copyright (c) 2007-2010 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 event_struct.h
32 Structures used by event.h. Using these structures directly may harm
33 forward compatibility: be careful!
41 #include <event2/event-config.h>
42 #ifdef _EVENT_HAVE_SYS_TYPES_H
43 #include <sys/types.h>
45 #ifdef _EVENT_HAVE_SYS_TIME_H
50 #include <event2/util.h>
53 #include <event2/keyvalq_struct.h>
55 #define EVLIST_TIMEOUT 0x01
56 #define EVLIST_INSERTED 0x02
57 #define EVLIST_SIGNAL 0x04
58 #define EVLIST_ACTIVE 0x08
59 #define EVLIST_INTERNAL 0x10
60 #define EVLIST_INIT 0x80
62 /* EVLIST_X_ Private space: 0x1000-0xf000 */
63 #define EVLIST_ALL (0xf000 | 0x9f)
65 /* Fix so that people don't have to run with <sys/queue.h> */
67 #define _EVENT_DEFINED_TQENTRY
68 #define TAILQ_ENTRY(type) \
70 struct type *tqe_next; /* next element */ \
71 struct type **tqe_prev; /* address of previous next element */ \
73 #endif /* !TAILQ_ENTRY */
76 #define _EVENT_DEFINED_TQHEAD
77 #define TAILQ_HEAD(name, type) \
79 struct type *tqh_first; \
80 struct type **tqh_last; \
86 TAILQ_ENTRY(event) ev_active_next;
87 TAILQ_ENTRY(event) ev_next;
88 /* for managing timeouts */
90 TAILQ_ENTRY(event) ev_next_with_common_timeout;
93 evutil_socket_t ev_fd;
95 struct event_base *ev_base;
98 /* used for io events */
100 TAILQ_ENTRY(event) ev_io_next;
101 struct timeval ev_timeout;
104 /* used by signal events */
106 TAILQ_ENTRY(event) ev_signal_next;
108 /* Allows deletes in callback */
114 short ev_res; /* result passed to event callback */
116 ev_uint8_t ev_pri; /* smaller numbers are higher priority */
117 ev_uint8_t ev_closure;
118 struct timeval ev_timeout;
120 /* allows us to adopt for different types of events */
121 void (*ev_callback)(evutil_socket_t, short, void *arg);
125 TAILQ_HEAD (event_list, event);
127 #ifdef _EVENT_DEFINED_TQENTRY
131 #ifdef _EVENT_DEFINED_TQHEAD
139 #endif /* _EVENT2_EVENT_STRUCT_H_ */