libev/event.h

/*
 * libevent compatibility header, only core events supported
 *
 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modifica-
 * tion, are permitted provided that the following conditions are met:
 * 
 *   1.  Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 * 
 *   2.  Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * the GNU General Public License ("GPL") version 2 or any later version,
 * in which case the provisions of the GPL are applicable instead of
 * the above. If you wish to allow the use of your version of this file
 * only under the terms of the GPL and not to allow others to use your
 * version of this file under the BSD license, indicate your decision
 * by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL. If you do not delete the
 * provisions above, a recipient may use your version of this file under
 * either the BSD or the GPL.
 */

#ifndef EVENT_H__
#define EVENT_H__

#ifdef EV_H
# include EV_H
#else
# include "ev.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

struct event_base;

#define EVLIST_TIMEOUT  0x01
#define EVLIST_INSERTED 0x02
#define EVLIST_SIGNAL   0x04
#define EVLIST_ACTIVE   0x08
#define EVLIST_INTERNAL 0x10
#define EVLIST_INIT     0x80

struct event
{
  /* libev watchers we map onto */
  union {
    struct ev_io io;
    struct ev_signal sig;
  } iosig;
  struct ev_timer to;

  /* compatibility slots */
  struct event_base *ev_base;
  void (*ev_callback)(int, short, void *arg);
  void *ev_arg;
  int ev_fd;
  int ev_pri;
  int ev_res;
  int ev_flags;
  short ev_events;
};

#define EV_PERSIST                 0x10

#define EVENT_SIGNAL(ev)           ((int) (ev)->ev_fd)
#define EVENT_FD(ev)               ((int) (ev)->ev_fd)

#define event_initialized(ev)      ((ev)->ev_flags & EVLIST_INIT)

#define evtimer_add(ev,tv)         event_add (ev, tv)
#define evtimer_set(ev,cb,data)    event_set (ev, -1, 0, cb, data)
#define evtimer_del(ev)            event_del (ev)
#define evtimer_pending(ev,tv)     event_pending (ev, EV_TIMEOUT, tv)
#define evtimer_initialized(ev)    event_initialized (ev)

#define timeout_add(ev,tv)         evtimer_add (ev, tv)
#define timeout_set(ev,cb,data)    evtimer_set (ev, cb, data)
#define timeout_del(ev)            evtimer_del (ev)
#define timeout_pending(ev,tv)     evtimer_pending (ev, tv)
#define timeout_initialized(ev)    evtimer_initialized (ev)

#define signal_add(ev,tv)          event_add (ev, tv)
#define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
#define signal_del(ev)             event_del (ev)
#define signal_pending(ev,tv)      event_pending (ev, EV_SIGNAL, tv)
#define signal_initialized(ev)     event_initialized (ev)

const char *event_get_version (void);
const char *event_get_method (void);

void *event_init (void);
void event_base_free (struct event_base *base);

#define EVLOOP_ONCE      EVLOOP_ONESHOT
int event_loop (int);
int event_loopexit (struct timeval *tv);
int event_dispatch (void);

#define _EVENT_LOG_DEBUG 0
#define _EVENT_LOG_MSG   1
#define _EVENT_LOG_WARN  2
#define _EVENT_LOG_ERR   3
typedef void (*event_log_cb)(int severity, const char *msg);
void event_set_log_callback(event_log_cb cb);

void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);

int event_add (struct event *ev, struct timeval *tv);
int event_del (struct event *ev);
void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */

int event_pending (struct event *ev, short, struct timeval *tv);

int event_priority_init (int npri);
int event_priority_set (struct event *ev, int pri);

int event_base_set (struct event_base *base, struct event *ev);
int event_base_loop (struct event_base *base, int);
int event_base_loopexit (struct event_base *base, struct timeval *tv);
int event_base_dispatch (struct event_base *base);
int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
int event_base_priority_init (struct event_base *base, int fd);

/* next line is different in the libevent+libev version */
/*libevent-include*/

#ifdef __cplusplus
}
#endif

#endif

Revision:	1.18
Committed:	Fri May 23 16:37:38 2008 UTC (16 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_44, rel-3_45, rel-3_41, rel-3_42, rel-3_43, rel-3_48, rel-3_431
Changes since 1.17:	+1 -1 lines
Log Message:	* empty log message *
#	Content
1	/*
2	* libevent compatibility header, only core events supported
3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.
6	*
7	* 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	*
28	* 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	*/
39
40	#ifndef EVENT_H__
41	#define EVENT_H__
42
43	#ifdef EV_H
44	# include EV_H
45	#else
46	# include "ev.h"
47	#endif
48
49	#ifdef __cplusplus
50	extern "C" {
51	#endif
52
53	struct event_base;
54
55	#define EVLIST_TIMEOUT 0x01
56	#define EVLIST_INSERTED 0x02
57	#define EVLIST_SIGNAL 0x04
58	#define EVLIST_ACTIVE 0x08
59	#define EVLIST_INTERNAL 0x10
60	#define EVLIST_INIT 0x80
61
62	struct event
63	{
64	/* libev watchers we map onto */
65	union {
66	struct ev_io io;
67	struct ev_signal sig;
68	} iosig;
69	struct ev_timer to;
70
71	/* compatibility slots */
72	struct event_base *ev_base;
73	void (ev_callback)(int, short, void arg);
74	void *ev_arg;
75	int ev_fd;
76	int ev_pri;
77	int ev_res;
78	int ev_flags;
79	short ev_events;
80	};
81
82	#define EV_PERSIST 0x10
83
84	#define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
85	#define EVENT_FD(ev) ((int) (ev)->ev_fd)
86
87	#define event_initialized(ev) ((ev)->ev_flags & EVLIST_INIT)
88
89	#define evtimer_add(ev,tv) event_add (ev, tv)
90	#define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
91	#define evtimer_del(ev) event_del (ev)
92	#define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
93	#define evtimer_initialized(ev) event_initialized (ev)
94
95	#define timeout_add(ev,tv) evtimer_add (ev, tv)
96	#define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
97	#define timeout_del(ev) evtimer_del (ev)
98	#define timeout_pending(ev,tv) evtimer_pending (ev, tv)
99	#define timeout_initialized(ev) evtimer_initialized (ev)
100
101	#define signal_add(ev,tv) event_add (ev, tv)
102	#define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL \| EV_PERSIST, cb, data)
103	#define signal_del(ev) event_del (ev)
104	#define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
105	#define signal_initialized(ev) event_initialized (ev)
106
107	const char *event_get_version (void);
108	const char *event_get_method (void);
109
110	void *event_init (void);
111	void event_base_free (struct event_base *base);
112
113	#define EVLOOP_ONCE EVLOOP_ONESHOT
114	int event_loop (int);
115	int event_loopexit (struct timeval *tv);
116	int event_dispatch (void);
117
118	#define _EVENT_LOG_DEBUG 0
119	#define _EVENT_LOG_MSG 1
120	#define _EVENT_LOG_WARN 2
121	#define _EVENT_LOG_ERR 3
122	typedef void (event_log_cb)(int severity, const char msg);
123	void event_set_log_callback(event_log_cb cb);
124
125	void event_set (struct event ev, int fd, short events, void (cb)(int, short, void ), void arg);
126	int event_once (int fd, short events, void (cb)(int, short, void ), void arg, struct timeval tv);
127
128	int event_add (struct event ev, struct timeval tv);
129	int event_del (struct event *ev);
130	void event_active (struct event ev, int res, short ncalls); / ncalls is being ignored */
131
132	int event_pending (struct event ev, short, struct timeval tv);
133
134	int event_priority_init (int npri);
135	int event_priority_set (struct event *ev, int pri);
136
137	int event_base_set (struct event_base base, struct event ev);
138	int event_base_loop (struct event_base *base, int);
139	int event_base_loopexit (struct event_base base, struct timeval tv);
140	int event_base_dispatch (struct event_base *base);
141	int event_base_once (struct event_base base, int fd, short events, void (cb)(int, short, void ), void arg, struct timeval *tv);
142	int event_base_priority_init (struct event_base *base, int fd);
143
144	/* next line is different in the libevent+libev version */
145	/libevent-include/
146
147	#ifdef __cplusplus
148	}
149	#endif
150
151	#endif
152