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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

# User Rev Content
1 root 1.1 /*
2     * libevent compatibility header, only core events supported
3     *
4 root 1.18 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5 root 1.1 * All rights reserved.
6     *
7 root 1.17 * 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 root 1.1 *
28 root 1.17 * 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 root 1.1 */
39 root 1.17
40 root 1.15 #ifndef EVENT_H__
41     #define EVENT_H__
42 root 1.1
43 root 1.14 #ifdef EV_H
44     # include EV_H
45     #else
46 root 1.17 # include "ev.h"
47 root 1.14 #endif
48 root 1.6
49 root 1.1 #ifdef __cplusplus
50     extern "C" {
51     #endif
52    
53 root 1.19 /* 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 root 1.14 struct event_base;
60    
61 root 1.16 #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 root 1.1 struct event
69 root 1.4 {
70 root 1.5 /* libev watchers we map onto */
71 root 1.4 union {
72     struct ev_io io;
73     struct ev_signal sig;
74     } iosig;
75 root 1.1 struct ev_timer to;
76    
77 root 1.4 /* compatibility slots */
78 root 1.1 struct event_base *ev_base;
79 root 1.2 void (*ev_callback)(int, short, void *arg);
80     void *ev_arg;
81 root 1.1 int ev_fd;
82     int ev_pri;
83     int ev_res;
84 root 1.16 int ev_flags;
85 root 1.2 short ev_events;
86 root 1.1 };
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 root 1.16 #define event_initialized(ev) ((ev)->ev_flags & EVLIST_INIT)
94 root 1.1
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 root 1.12 void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
137 root 1.1
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 root 1.17 /* next line is different in the libevent+libev version */
151     /*libevent-include*/
152 root 1.6
153     #ifdef __cplusplus
154     }
155     #endif
156    
157 root 1.1 #endif
158 root 1.5