178 lines
6.1 KiB
C
178 lines
6.1 KiB
C
/*
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* libevent compatibility header, only core events supported
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*
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* Copyright (c) 2007,2008,2010,2012 Marc Alexander Lehmann <libev@schmorp.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modifica-
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* tion, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
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* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
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* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
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* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Alternatively, the contents of this file may be used under the terms of
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* the GNU General Public License ("GPL") version 2 or any later version,
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* in which case the provisions of the GPL are applicable instead of
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* the above. If you wish to allow the use of your version of this file
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* only under the terms of the GPL and not to allow others to use your
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* version of this file under the BSD license, indicate your decision
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* by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL. If you do not delete the
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* provisions above, a recipient may use your version of this file under
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* either the BSD or the GPL.
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*/
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#ifndef EVENT_H_
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#define EVENT_H_
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#ifdef EV_H
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# include EV_H
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#else
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# include "ev.h"
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#endif
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#ifndef EVLOOP_NONBLOCK
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# define EVLOOP_NONBLOCK EVRUN_NOWAIT
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#endif
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#ifndef EVLOOP_ONESHOT
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# define EVLOOP_ONESHOT EVRUN_ONCE
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#endif
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#ifndef EV_TIMEOUT
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# define EV_TIMEOUT EV_TIMER
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* we need sys/time.h for struct timeval only */
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#if !defined (WIN32) || defined (__MINGW32__)
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# include <time.h> /* mingw seems to need this, for whatever reason */
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# include <sys/time.h>
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#endif
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struct event_base;
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#define EVLIST_TIMEOUT 0x01
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#define EVLIST_INSERTED 0x02
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#define EVLIST_SIGNAL 0x04
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#define EVLIST_ACTIVE 0x08
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#define EVLIST_INTERNAL 0x10
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#define EVLIST_INIT 0x80
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typedef void (*event_callback_fn)(int, short, void *);
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struct event
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{
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/* libev watchers we map onto */
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union {
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struct ev_io io;
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struct ev_signal sig;
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} iosig;
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struct ev_timer to;
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/* compatibility slots */
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struct event_base *ev_base;
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event_callback_fn ev_callback;
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void *ev_arg;
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int ev_fd;
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int ev_pri;
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int ev_res;
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int ev_flags;
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short ev_events;
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};
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event_callback_fn event_get_callback (const struct event *ev);
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#define EV_READ EV_READ
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#define EV_WRITE EV_WRITE
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#define EV_PERSIST 0x10
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#define EV_ET 0x20 /* nop */
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#define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
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#define EVENT_FD(ev) ((int) (ev)->ev_fd)
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#define event_initialized(ev) ((ev)->ev_flags & EVLIST_INIT)
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#define evtimer_add(ev,tv) event_add (ev, tv)
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#define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
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#define evtimer_del(ev) event_del (ev)
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#define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
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#define evtimer_initialized(ev) event_initialized (ev)
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#define timeout_add(ev,tv) evtimer_add (ev, tv)
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#define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
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#define timeout_del(ev) evtimer_del (ev)
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#define timeout_pending(ev,tv) evtimer_pending (ev, tv)
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#define timeout_initialized(ev) evtimer_initialized (ev)
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#define signal_add(ev,tv) event_add (ev, tv)
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#define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
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#define signal_del(ev) event_del (ev)
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#define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
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#define signal_initialized(ev) event_initialized (ev)
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const char *event_get_version (void);
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const char *event_get_method (void);
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void *event_init (void);
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void event_base_free (struct event_base *base);
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#define EVLOOP_ONCE EVLOOP_ONESHOT
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int event_loop (int);
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int event_loopexit (struct timeval *tv);
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int event_dispatch (void);
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#define _EVENT_LOG_DEBUG 0
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#define _EVENT_LOG_MSG 1
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#define _EVENT_LOG_WARN 2
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#define _EVENT_LOG_ERR 3
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typedef void (*event_log_cb)(int severity, const char *msg);
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void event_set_log_callback(event_log_cb cb);
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void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
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int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
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int event_add (struct event *ev, struct timeval *tv);
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int event_del (struct event *ev);
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void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
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int event_pending (struct event *ev, short, struct timeval *tv);
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int event_priority_init (int npri);
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int event_priority_set (struct event *ev, int pri);
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struct event_base *event_base_new (void);
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const char *event_base_get_method (const struct event_base *);
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int event_base_set (struct event_base *base, struct event *ev);
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int event_base_loop (struct event_base *base, int);
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int event_base_loopexit (struct event_base *base, struct timeval *tv);
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int event_base_dispatch (struct event_base *base);
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int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
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int event_base_priority_init (struct event_base *base, int fd);
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/* next line is different in the libevent+libev version */
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/*libevent-include*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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