libev/event.h

/*
 * libevent compatibility header, only core events supported
 *
 * Copyright (c) 2007      Marc Alexander Lehmann <libev@schmorp.de>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, 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 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef _EVENT_H_
#define _EVENT_H_

#ifndef EV_EMBED
# include "ev.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

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;
  short ev_events;

  char initialised; /* flag to work around some idiosynchrasies in the API */
};

#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)->initialised)

#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);

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);

struct event_base;

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);

#ifndef EV_EMBED
# include "event_compat.h"
#endif

#ifdef __cplusplus
}
#endif

#endif

Revision:	1.8
Committed:	Sun Nov 4 16:52:52 2007 UTC (16 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.7:	+4 -2 lines
Log Message:	* empty log message *
#	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