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/cvs/libev/event.h
Revision: 1.19
Committed: Mon Nov 17 03:37:08 2008 UTC (15 years, 7 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rel-3_51, rel-3_53, rel-3_52, rel-3_7, rel-3_6, rel-3_49
Changes since 1.18: +6 -0 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 /*
2 * libevent compatibility header, only core events supported
3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Alternatively, the contents of this file may be used under the terms of
29 * the GNU General Public License ("GPL") version 2 or any later version,
30 * in which case the provisions of the GPL are applicable instead of
31 * the above. If you wish to allow the use of your version of this file
32 * only under the terms of the GPL and not to allow others to use your
33 * version of this file under the BSD license, indicate your decision
34 * by deleting the provisions above and replace them with the notice
35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL.
38 */
39
40 #ifndef EVENT_H__
41 #define EVENT_H__
42
43 #ifdef EV_H
44 # include EV_H
45 #else
46 # include "ev.h"
47 #endif
48
49 #ifdef __cplusplus
50 extern "C" {
51 #endif
52
53 /* we need sys/time.h for struct timeval only */
54 #if !defined (WIN32) || defined (__MINGW32__)
55 # include <time.h> /* mingw seems to need this, for whatever reason */
56 # include <sys/time.h>
57 #endif
58
59 struct event_base;
60
61 #define EVLIST_TIMEOUT 0x01
62 #define EVLIST_INSERTED 0x02
63 #define EVLIST_SIGNAL 0x04
64 #define EVLIST_ACTIVE 0x08
65 #define EVLIST_INTERNAL 0x10
66 #define EVLIST_INIT 0x80
67
68 struct event
69 {
70 /* libev watchers we map onto */
71 union {
72 struct ev_io io;
73 struct ev_signal sig;
74 } iosig;
75 struct ev_timer to;
76
77 /* compatibility slots */
78 struct event_base *ev_base;
79 void (*ev_callback)(int, short, void *arg);
80 void *ev_arg;
81 int ev_fd;
82 int ev_pri;
83 int ev_res;
84 int ev_flags;
85 short ev_events;
86 };
87
88 #define EV_PERSIST 0x10
89
90 #define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
91 #define EVENT_FD(ev) ((int) (ev)->ev_fd)
92
93 #define event_initialized(ev) ((ev)->ev_flags & EVLIST_INIT)
94
95 #define evtimer_add(ev,tv) event_add (ev, tv)
96 #define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
97 #define evtimer_del(ev) event_del (ev)
98 #define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
99 #define evtimer_initialized(ev) event_initialized (ev)
100
101 #define timeout_add(ev,tv) evtimer_add (ev, tv)
102 #define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
103 #define timeout_del(ev) evtimer_del (ev)
104 #define timeout_pending(ev,tv) evtimer_pending (ev, tv)
105 #define timeout_initialized(ev) evtimer_initialized (ev)
106
107 #define signal_add(ev,tv) event_add (ev, tv)
108 #define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
109 #define signal_del(ev) event_del (ev)
110 #define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
111 #define signal_initialized(ev) event_initialized (ev)
112
113 const char *event_get_version (void);
114 const char *event_get_method (void);
115
116 void *event_init (void);
117 void event_base_free (struct event_base *base);
118
119 #define EVLOOP_ONCE EVLOOP_ONESHOT
120 int event_loop (int);
121 int event_loopexit (struct timeval *tv);
122 int event_dispatch (void);
123
124 #define _EVENT_LOG_DEBUG 0
125 #define _EVENT_LOG_MSG 1
126 #define _EVENT_LOG_WARN 2
127 #define _EVENT_LOG_ERR 3
128 typedef void (*event_log_cb)(int severity, const char *msg);
129 void event_set_log_callback(event_log_cb cb);
130
131 void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
132 int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
133
134 int event_add (struct event *ev, struct timeval *tv);
135 int event_del (struct event *ev);
136 void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
137
138 int event_pending (struct event *ev, short, struct timeval *tv);
139
140 int event_priority_init (int npri);
141 int event_priority_set (struct event *ev, int pri);
142
143 int event_base_set (struct event_base *base, struct event *ev);
144 int event_base_loop (struct event_base *base, int);
145 int event_base_loopexit (struct event_base *base, struct timeval *tv);
146 int event_base_dispatch (struct event_base *base);
147 int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
148 int event_base_priority_init (struct event_base *base, int fd);
149
150 /* next line is different in the libevent+libev version */
151 /*libevent-include*/
152
153 #ifdef __cplusplus
154 }
155 #endif
156
157 #endif
158