libevent 2.1.13 Event notification library

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event_compat.h
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1/*
2 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
15 *
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.
26 */
27#ifndef EVENT2_EVENT_COMPAT_H_INCLUDED_
28#define EVENT2_EVENT_COMPAT_H_INCLUDED_
29
44#include <event2/visibility.h>
45
46#ifdef __cplusplus
47 extern "C" {
48#endif
49
50#include <event2/event-config.h>
51#ifdef EVENT__HAVE_SYS_TYPES_H
52#include <sys/types.h>
53#endif
54#ifdef EVENT__HAVE_SYS_TIME_H
55#include <sys/time.h>
56#endif
57
58/* For int types. */
59#include <event2/util.h>
60
74EVENT2_EXPORT_SYMBOL
75 struct event_base *event_init(void);
76
88EVENT2_EXPORT_SYMBOL
89 int event_dispatch(void);
90
102EVENT2_EXPORT_SYMBOL
103 int event_loop(int);
104
105
118EVENT2_EXPORT_SYMBOL
119 int event_loopexit(const struct timeval *);
120
121
134EVENT2_EXPORT_SYMBOL
135 int event_loopbreak(void);
136
146EVENT2_EXPORT_SYMBOL
147 int event_once(evutil_socket_t , short,
148 void (*)(evutil_socket_t, short, void *), void *, const struct timeval *);
149
150
160EVENT2_EXPORT_SYMBOL
161 const char *event_get_method(void);
162
163
173EVENT2_EXPORT_SYMBOL
174 int event_priority_init(int);
175
183EVENT2_EXPORT_SYMBOL
184 void event_set(struct event *, evutil_socket_t, short, void (*)(evutil_socket_t, short, void *), void *);
185
186#define evtimer_set(ev, cb, arg) event_set((ev), -1, 0, (cb), (arg))
187#define evsignal_set(ev, x, cb, arg) \
188 event_set((ev), (x), EV_SIGNAL|EV_PERSIST, (cb), (arg))
189
190
198#define timeout_add(ev, tv) event_add((ev), (tv))
199#define timeout_set(ev, cb, arg) event_set((ev), -1, 0, (cb), (arg))
200#define timeout_del(ev) event_del(ev)
201#define timeout_pending(ev, tv) event_pending((ev), EV_TIMEOUT, (tv))
202#define timeout_initialized(ev) event_initialized(ev)
204
212#define signal_add(ev, tv) event_add((ev), (tv))
213#define signal_set(ev, x, cb, arg) \
214 event_set((ev), (x), EV_SIGNAL|EV_PERSIST, (cb), (arg))
215#define signal_del(ev) event_del(ev)
216#define signal_pending(ev, tv) event_pending((ev), EV_SIGNAL, (tv))
217#define signal_initialized(ev) event_initialized(ev)
219
220#ifndef EVENT_FD
221/* These macros are obsolete; use event_get_fd and event_get_signal instead. */
222#define EVENT_FD(ev) ((int)event_get_fd(ev))
223#define EVENT_SIGNAL(ev) event_get_signal(ev)
224#endif
225
226#ifdef __cplusplus
227}
228#endif
229
230#endif /* EVENT2_EVENT_COMPAT_H_INCLUDED_ */
event_get_method
EVENT2_EXPORT_SYMBOL const char * event_get_method(void)
Get the kernel event notification mechanism used by Libevent.
event_loop
EVENT2_EXPORT_SYMBOL int event_loop(int)
Handle events.
event_init
EVENT2_EXPORT_SYMBOL struct event_base * event_init(void)
Initialize the event API.
event_loopbreak
EVENT2_EXPORT_SYMBOL int event_loopbreak(void)
Abort the active event_loop() immediately.
event_loopexit
EVENT2_EXPORT_SYMBOL int event_loopexit(const struct timeval *)
Exit the event loop after the specified time.
event_once
EVENT2_EXPORT_SYMBOL int event_once(evutil_socket_t, short, void(*)(evutil_socket_t, short, void *), void *, const struct timeval *)
Schedule a one-time event to occur.
event_priority_init
EVENT2_EXPORT_SYMBOL int event_priority_init(int)
Set the number of different event priorities.
event_set
EVENT2_EXPORT_SYMBOL void event_set(struct event *, evutil_socket_t, short, void(*)(evutil_socket_t, short, void *), void *)
Prepare an event structure to be added.
event_dispatch
EVENT2_EXPORT_SYMBOL int event_dispatch(void)
Loop to process events.
event_base
Structure to hold information and state for a Libevent dispatch loop.
Definition event.h:219
event
Structure to represent a single event.
Definition event.h:278
util.h
Common convenience functions for cross-platform portability and related socket manipulations.
evutil_socket_t
#define evutil_socket_t
A type wide enough to hold the output of "socket()" or "accept()".
Definition util.h:310