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/cvs/libev/event.h
Revision: 1.8
Committed: Sun Nov 4 16:52:52 2007 UTC (16 years, 11 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.7: +4 -2 lines
Log Message:
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File Contents

# User Rev Content
1 root 1.1 /*
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 root 1.8 #ifndef EV_EMBED
35     # include "ev.h"
36     #endif
37 root 1.6
38 root 1.1 #ifdef __cplusplus
39     extern "C" {
40     #endif
41    
42     struct event
43 root 1.4 {
44 root 1.5 /* libev watchers we map onto */
45 root 1.4 union {
46     struct ev_io io;
47     struct ev_signal sig;
48     } iosig;
49 root 1.1 struct ev_timer to;
50    
51 root 1.4 /* compatibility slots */
52 root 1.1 struct event_base *ev_base;
53 root 1.2 void (*ev_callback)(int, short, void *arg);
54     void *ev_arg;
55 root 1.1 int ev_fd;
56     int ev_pri;
57     int ev_res;
58 root 1.2 short ev_events;
59 root 1.7
60     char initialised; /* flag to work around some idiosynchrasies in the API */
61 root 1.1 };
62    
63     #define EV_PERSIST 0x10
64    
65     #define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
66     #define EVENT_FD(ev) ((int) (ev)->ev_fd)
67    
68 root 1.7 #define event_initialized(ev) ((ev)->initialised)
69 root 1.1
70     #define evtimer_add(ev,tv) event_add (ev, tv)
71     #define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
72     #define evtimer_del(ev) event_del (ev)
73     #define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
74     #define evtimer_initialized(ev) event_initialized (ev)
75    
76     #define timeout_add(ev,tv) evtimer_add (ev, tv)
77     #define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
78     #define timeout_del(ev) evtimer_del (ev)
79     #define timeout_pending(ev,tv) evtimer_pending (ev, tv)
80     #define timeout_initialized(ev) evtimer_initialized (ev)
81    
82     #define signal_add(ev,tv) event_add (ev, tv)
83     #define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
84     #define signal_del(ev) event_del (ev)
85     #define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
86     #define signal_initialized(ev) event_initialized (ev)
87    
88     const char *event_get_version (void);
89     const char *event_get_method (void);
90    
91     void *event_init (void);
92     void event_base_free (struct event_base *base);
93    
94     #define EVLOOP_ONCE EVLOOP_ONESHOT
95     int event_loop (int);
96     int event_loopexit (struct timeval *tv);
97     int event_dispatch (void);
98    
99     #define _EVENT_LOG_DEBUG 0
100     #define _EVENT_LOG_MSG 1
101     #define _EVENT_LOG_WARN 2
102     #define _EVENT_LOG_ERR 3
103     typedef void (*event_log_cb)(int severity, const char *msg);
104     void event_set_log_callback(event_log_cb cb);
105    
106     void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
107     int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
108    
109     int event_add (struct event *ev, struct timeval *tv);
110     int event_del (struct event *ev);
111    
112     int event_pending (struct event *ev, short, struct timeval *tv);
113    
114     int event_priority_init (int npri);
115     int event_priority_set (struct event *ev, int pri);
116    
117     struct event_base;
118    
119     int event_base_set (struct event_base *base, struct event *ev);
120     int event_base_loop (struct event_base *base, int);
121     int event_base_loopexit (struct event_base *base, struct timeval *tv);
122     int event_base_dispatch (struct event_base *base);
123     int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
124     int event_base_priority_init (struct event_base *base, int fd);
125    
126 root 1.8 #ifndef EV_EMBED
127 root 1.6 # include "event_compat.h"
128     #endif
129    
130     #ifdef __cplusplus
131     }
132     #endif
133    
134 root 1.1 #endif
135 root 1.5