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/cvs/libev/event.h
Revision: 1.13
Committed: Thu Nov 8 21:14:36 2007 UTC (16 years, 7 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.12: +1 -1 lines
Log Message:
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File Contents

# Content
1 /*
2 * libevent compatibility header, only core events supported
3 *
4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials provided
17 * with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #ifndef _EVENT_H_
32 #define _EVENT_H_
33
34 #include <ev.h>
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 struct event
41 {
42 /* libev watchers we map onto */
43 union {
44 struct ev_io io;
45 struct ev_signal sig;
46 } iosig;
47 struct ev_timer to;
48
49 /* compatibility slots */
50 struct event_base *ev_base;
51 void (*ev_callback)(int, short, void *arg);
52 void *ev_arg;
53 int ev_fd;
54 int ev_pri;
55 int ev_res;
56 short ev_events;
57 };
58
59 #define EV_PERSIST 0x10
60
61 #define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
62 #define EVENT_FD(ev) ((int) (ev)->ev_fd)
63
64 #define event_initialized(ev) 1
65
66 #define evtimer_add(ev,tv) event_add (ev, tv)
67 #define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
68 #define evtimer_del(ev) event_del (ev)
69 #define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
70 #define evtimer_initialized(ev) event_initialized (ev)
71
72 #define timeout_add(ev,tv) evtimer_add (ev, tv)
73 #define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
74 #define timeout_del(ev) evtimer_del (ev)
75 #define timeout_pending(ev,tv) evtimer_pending (ev, tv)
76 #define timeout_initialized(ev) evtimer_initialized (ev)
77
78 #define signal_add(ev,tv) event_add (ev, tv)
79 #define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
80 #define signal_del(ev) event_del (ev)
81 #define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
82 #define signal_initialized(ev) event_initialized (ev)
83
84 const char *event_get_version (void);
85 const char *event_get_method (void);
86
87 void *event_init (void);
88 void event_base_free (struct event_base *base);
89
90 #define EVLOOP_ONCE EVLOOP_ONESHOT
91 int event_loop (int);
92 int event_loopexit (struct timeval *tv);
93 int event_dispatch (void);
94
95 #define _EVENT_LOG_DEBUG 0
96 #define _EVENT_LOG_MSG 1
97 #define _EVENT_LOG_WARN 2
98 #define _EVENT_LOG_ERR 3
99 typedef void (*event_log_cb)(int severity, const char *msg);
100 void event_set_log_callback(event_log_cb cb);
101
102 void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
103 int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
104
105 int event_add (struct event *ev, struct timeval *tv);
106 int event_del (struct event *ev);
107 void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
108
109 int event_pending (struct event *ev, short, struct timeval *tv);
110
111 int event_priority_init (int npri);
112 int event_priority_set (struct event *ev, int pri);
113
114 struct event_base;
115
116 int event_base_set (struct event_base *base, struct event *ev);
117 int event_base_loop (struct event_base *base, int);
118 int event_base_loopexit (struct event_base *base, struct timeval *tv);
119 int event_base_dispatch (struct event_base *base);
120 int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
121 int event_base_priority_init (struct event_base *base, int fd);
122
123 #ifndef EV_STANDALONE
124 # include <event_compat.h>
125 #endif
126
127 #ifdef __cplusplus
128 }
129 #endif
130
131 #endif
132