[ViewVC] Diff of: cvs/libev/ev.h

Comparing libev/ev.h (file contents):
Revision 1.49 by root, Sat Nov 10 21:19:30 2007 UTC vs.
Revision 1.202 by root, Wed Jan 22 02:00:13 2020 UTC

1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
3	* All rights reserved.	5	* All rights reserved.
4	*	6	*
5	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
6	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
7	* met:
8	*	9	*
9	* * Redistributions of source code must retain the above copyright	10	* 1. Redistributions of source code must retain the above copyright notice,
10	* notice, this list of conditions and the following disclaimer.	11	* this list of conditions and the following disclaimer.
11	*	12	*
12	* * Redistributions in binary form must reproduce the above	13	* 2. Redistributions in binary form must reproduce the above copyright
13	* copyright notice, this list of conditions and the following	14	* notice, this list of conditions and the following disclaimer in the
14	* disclaimer in the documentation and/or other materials provided	15	* documentation and/or other materials provided with the distribution.
15	* with the distribution.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR	19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT	20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT	21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
27	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	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.
28	*/	38	*/
29		39
30	#ifndef EV_H__	40	#ifndef EV_H_
31	#define EV_H__	41	#define EV_H_
32		42
33	#ifdef __cplusplus	43	#ifdef __cplusplus
34	extern "C" {	44	# define EV_CPP(x) x
		45	# if __cplusplus >= 201103L
		46	# define EV_NOEXCEPT noexcept
		47	# else
		48	# define EV_NOEXCEPT
35	#endif	49	# endif
		50	#else
		51	# define EV_CPP(x)
		52	# define EV_NOEXCEPT
		53	#endif
		54	#define EV_THROW EV_NOEXCEPT /* pre-4.25, do not use in new code */
36		55
37	typedef double ev_tstamp;	56	EV_CPP(extern "C" {)
38		57
		58	/*****************************************************************************/
		59
		60	/* pre-4.0 compatibility */
		61	#ifndef EV_COMPAT3
		62	# define EV_COMPAT3 1
		63	#endif
		64
		65	#ifndef EV_FEATURES
		66	# if defined __OPTIMIZE_SIZE__
		67	# define EV_FEATURES 0x7c
		68	# else
		69	# define EV_FEATURES 0x7f
		70	# endif
		71	#endif
		72
		73	#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
		74	#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
		75	#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
		76	#define EV_FEATURE_API ((EV_FEATURES) & 8)
		77	#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
		78	#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
		79	#define EV_FEATURE_OS ((EV_FEATURES) & 64)
		80
39	/* these priorities are inclusive, higher priorities will be called earlier */	81	/* these priorities are inclusive, higher priorities will be invoked earlier */
40	#ifndef EV_MINPRI	82	#ifndef EV_MINPRI
41	# define EV_MINPRI -2	83	# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
42	#endif	84	#endif
43	#ifndef EV_MAXPRI	85	#ifndef EV_MAXPRI
44	# define EV_MAXPRI +2	86	# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
45	#endif	87	#endif
46		88
47	#ifndef EV_MULTIPLICITY	89	#ifndef EV_MULTIPLICITY
48	# define EV_MULTIPLICITY 1	90	# define EV_MULTIPLICITY EV_FEATURE_CONFIG
		91	#endif
		92
		93	#ifndef EV_PERIODIC_ENABLE
		94	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
		95	#endif
		96
		97	#ifndef EV_STAT_ENABLE
		98	# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
		99	#endif
		100
		101	#ifndef EV_PREPARE_ENABLE
		102	# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
		103	#endif
		104
		105	#ifndef EV_CHECK_ENABLE
		106	# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
		107	#endif
		108
		109	#ifndef EV_IDLE_ENABLE
		110	# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
		111	#endif
		112
		113	#ifndef EV_FORK_ENABLE
		114	# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
		115	#endif
		116
		117	#ifndef EV_CLEANUP_ENABLE
		118	# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
		119	#endif
		120
		121	#ifndef EV_SIGNAL_ENABLE
		122	# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
		123	#endif
		124
		125	#ifndef EV_CHILD_ENABLE
		126	# ifdef _WIN32
		127	# define EV_CHILD_ENABLE 0
		128	# else
		129	# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
		130	#endif
		131	#endif
		132
		133	#ifndef EV_ASYNC_ENABLE
		134	# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
		135	#endif
		136
		137	#ifndef EV_EMBED_ENABLE
		138	# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
		139	#endif
		140
		141	#ifndef EV_WALK_ENABLE
		142	# define EV_WALK_ENABLE 0 /* not yet */
		143	#endif
		144
		145	/*****************************************************************************/
		146
		147	#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
		148	# undef EV_SIGNAL_ENABLE
		149	# define EV_SIGNAL_ENABLE 1
		150	#endif
		151
		152	/*****************************************************************************/
		153
		154	#ifndef EV_TSTAMP_T
		155	# define EV_TSTAMP_T double
		156	#endif
		157	typedef EV_TSTAMP_T ev_tstamp;
		158
		159	#include <string.h> /* for memmove */
		160
		161	#ifndef EV_ATOMIC_T
		162	# include <signal.h>
		163	# define EV_ATOMIC_T sig_atomic_t volatile
		164	#endif
		165
		166	#if EV_STAT_ENABLE
		167	# ifdef _WIN32
		168	# include <time.h>
		169	# include <sys/types.h>
		170	# endif
		171	# include <sys/stat.h>
49	#endif	172	#endif
50		173
51	/* support multiple event loops? */	174	/* support multiple event loops? */
52	#if EV_MULTIPLICITY	175	#if EV_MULTIPLICITY
53	struct ev_loop;	176	struct ev_loop;
54	# define EV_P struct ev_loop *loop	177	# define EV_P struct ev_loop loop / a loop as sole parameter in a declaration */
55	# define EV_P_ EV_P,	178	# define EV_P_ EV_P, /* a loop as first of multiple parameters */
56	# define EV_A loop	179	# define EV_A loop /* a loop as sole argument to a function call */
57	# define EV_A_ EV_A,	180	# define EV_A_ EV_A, /* a loop as first of multiple arguments */
58	# define EV_DEFAULT_A ev_default_loop (0)	181	# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
59	# define EV_DEFAULT_A_ EV_DEFAULT_A,	182	# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
		183	# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
		184	# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
60	#else	185	#else
61	# define EV_P void	186	# define EV_P void
62	# define EV_P_	187	# define EV_P_
63	# define EV_A	188	# define EV_A
64	# define EV_A_	189	# define EV_A_
		190	# define EV_DEFAULT
65	# define EV_DEFAULT_A	191	# define EV_DEFAULT_
		192	# define EV_DEFAULT_UC
66	# define EV_DEFAULT_A_	193	# define EV_DEFAULT_UC_
		194	# undef EV_EMBED_ENABLE
67	#endif	195	#endif
68		196
69	/* eventmask, revents, events... */	197	/* EV_INLINE is used for functions in header files */
70	#define EV_UNDEF -1 /* guaranteed to be invalid */	198	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
71	#define EV_NONE 0x00	199	# define EV_INLINE static inline
72	#define EV_READ 0x01	200	#else
73	#define EV_WRITE 0x02	201	# define EV_INLINE static
74	#define EV_TIMEOUT 0x000100
75	#define EV_PERIODIC 0x000200
76	#define EV_SIGNAL 0x000400
77	#define EV_IDLE 0x000800
78	#define EV_CHECK 0x001000
79	#define EV_PREPARE 0x002000
80	#define EV_CHILD 0x004000
81	#define EV_ERROR 0x800000 /* sent when an error occurs */
82
83	/* can be used to add custom fields to all watchers */
84	#ifndef EV_COMMON
85	# define EV_COMMON void *data
86	#endif	202	#endif
		203
		204	#ifdef EV_API_STATIC
		205	# define EV_API_DECL static
		206	#else
		207	# define EV_API_DECL extern
		208	#endif
		209
		210	/* EV_PROTOTYPES can be used to switch of prototype declarations */
87	#ifndef EV_PROTOTYPES	211	#ifndef EV_PROTOTYPES
88	# define EV_PROTOTYPES 1	212	# define EV_PROTOTYPES 1
89	#endif	213	#endif
90		214
		215	/*****************************************************************************/
		216
91	#define EV_VERSION_MAJOR 1	217	#define EV_VERSION_MAJOR 4
92	#define EV_VERSION_MINOR 1	218	#define EV_VERSION_MINOR 31
		219
		220	/* eventmask, revents, events... */
		221	enum {
		222	EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
		223	EV_NONE = 0x00, /* no events */
		224	EV_READ = 0x01, /* ev_io detected read will not block */
		225	EV_WRITE = 0x02, /* ev_io detected write will not block */
		226	EV__IOFDSET = 0x80, /* internal use only */
		227	EV_IO = EV_READ, /* alias for type-detection */
		228	EV_TIMER = 0x00000100, /* timer timed out */
		229	#if EV_COMPAT3
		230	EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
		231	#endif
		232	EV_PERIODIC = 0x00000200, /* periodic timer timed out */
		233	EV_SIGNAL = 0x00000400, /* signal was received */
		234	EV_CHILD = 0x00000800, /* child/pid had status change */
		235	EV_STAT = 0x00001000, /* stat data changed */
		236	EV_IDLE = 0x00002000, /* event loop is idling */
		237	EV_PREPARE = 0x00004000, /* event loop about to poll */
		238	EV_CHECK = 0x00008000, /* event loop finished poll */
		239	EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
		240	EV_FORK = 0x00020000, /* event loop resumed in child */
		241	EV_CLEANUP = 0x00040000, /* event loop resumed in child */
		242	EV_ASYNC = 0x00080000, /* async intra-loop signal */
		243	EV_CUSTOM = 0x01000000, /* for use by user code */
		244	EV_ERROR = (int)0x80000000 /* sent when an error occurs */
		245	};
		246
		247	/* can be used to add custom fields to all watchers, while losing binary compatibility */
		248	#ifndef EV_COMMON
		249	# define EV_COMMON void *data;
		250	#endif
93		251
94	#ifndef EV_CB_DECLARE	252	#ifndef EV_CB_DECLARE
95	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	253	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
96	#endif	254	#endif
97	#ifndef EV_CB_INVOKE	255	#ifndef EV_CB_INVOKE
98	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	256	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
99	#endif	257	#endif
100		258
		259	/* not official, do not use */
		260	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
		261
101	/*	262	/*
102	* struct member types:	263	* struct member types:
103	* private: you can look at them, but not change them, and they might not mean anything to you.	264	* private: you may look at them, but not change them,
		265	* and they might not mean anything to you.
104	* ro: can be read anytime, but only changed when the watcher isn't active	266	* ro: can be read anytime, but only changed when the watcher isn't active.
105	* rw: can be read and modified anytime, even when the watcher is active	267	* rw: can be read and modified anytime, even when the watcher is active.
		268	*
		269	* some internal details that might be helpful for debugging:
		270	*
		271	* active is either 0, which means the watcher is not active,
		272	* or the array index of the watcher (periodics, timers)
		273	* or the array index + 1 (most other watchers)
		274	* or simply 1 for watchers that aren't in some array.
		275	* pending is either 0, in which case the watcher isn't,
		276	* or the array index + 1 in the pendings array.
106	*/	277	*/
		278
		279	#if EV_MINPRI == EV_MAXPRI
		280	# define EV_DECL_PRIORITY
		281	#elif !defined (EV_DECL_PRIORITY)
		282	# define EV_DECL_PRIORITY int priority;
		283	#endif
107		284
108	/* shared by all watchers */	285	/* shared by all watchers */
109	#define EV_WATCHER(type) \	286	#define EV_WATCHER(type) \
110	int active; /* private */ \	287	int active; /* private */ \
111	int pending; /* private */ \	288	int pending; /* private */ \
112	int priority; /* private */ \	289	EV_DECL_PRIORITY /* private */ \
113	EV_COMMON; /* rw */ \	290	EV_COMMON /* rw */ \
114	EV_CB_DECLARE (type) /* private */	291	EV_CB_DECLARE (type) /* private */
115		292
116	#define EV_WATCHER_LIST(type) \	293	#define EV_WATCHER_LIST(type) \
117	EV_WATCHER (type); \	294	EV_WATCHER (type) \
118	struct ev_watcher_list next / private */	295	struct ev_watcher_list next; / private */
119		296
120	#define EV_WATCHER_TIME(type) \	297	#define EV_WATCHER_TIME(type) \
121	EV_WATCHER (type); \	298	EV_WATCHER (type) \
122	ev_tstamp at /* private */	299	ev_tstamp at; /* private */
123		300
124	/* base class, nothing to see here unless you subclass */	301	/* base class, nothing to see here unless you subclass */
125	struct ev_watcher	302	typedef struct ev_watcher
126	{	303	{
127	EV_WATCHER (ev_watcher);	304	EV_WATCHER (ev_watcher)
128	};	305	} ev_watcher;
129		306
130	/* base class, nothing to see here unless you subclass */	307	/* base class, nothing to see here unless you subclass */
131	struct ev_watcher_list	308	typedef struct ev_watcher_list
132	{	309	{
133	EV_WATCHER_LIST (ev_watcher_list);	310	EV_WATCHER_LIST (ev_watcher_list)
134	};	311	} ev_watcher_list;
135		312
136	/* base class, nothing to see here unless you subclass */	313	/* base class, nothing to see here unless you subclass */
137	struct ev_watcher_time	314	typedef struct ev_watcher_time
138	{	315	{
139	EV_WATCHER_TIME (ev_watcher_time);	316	EV_WATCHER_TIME (ev_watcher_time)
140	};	317	} ev_watcher_time;
		318
		319	/* invoked when fd is either EV_READable or EV_WRITEable */
		320	/* revent EV_READ, EV_WRITE */
		321	typedef struct ev_io
		322	{
		323	EV_WATCHER_LIST (ev_io)
		324
		325	int fd; /* ro */
		326	int events; /* ro */
		327	} ev_io;
141		328
142	/* invoked after a specific time, repeatable (based on monotonic clock) */	329	/* invoked after a specific time, repeatable (based on monotonic clock) */
143	/* revent EV_TIMEOUT */	330	/* revent EV_TIMEOUT */
144	struct ev_timer	331	typedef struct ev_timer
145	{	332	{
146	EV_WATCHER_TIME (ev_timer);	333	EV_WATCHER_TIME (ev_timer)
147		334
148	ev_tstamp repeat; /* rw */	335	ev_tstamp repeat; /* rw */
149	};	336	} ev_timer;
150		337
151	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */	338	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
152	/* revent EV_PERIODIC */	339	/* revent EV_PERIODIC */
153	struct ev_periodic	340	typedef struct ev_periodic
154	{	341	{
155	EV_WATCHER_TIME (ev_periodic);	342	EV_WATCHER_TIME (ev_periodic)
156		343
		344	ev_tstamp offset; /* rw */
157	ev_tstamp interval; /* rw */	345	ev_tstamp interval; /* rw */
158	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	346	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now) EV_NOEXCEPT; /* rw */
159	};	347	} ev_periodic;
160
161	/* invoked when fd is either EV_READable or EV_WRITEable */
162	/* revent EV_READ, EV_WRITE */
163	struct ev_io
164	{
165	EV_WATCHER_LIST (ev_io);
166
167	int fd; /* ro */
168	int events; /* ro */
169	};
170		348
171	/* invoked when the given signal has been received */	349	/* invoked when the given signal has been received */
172	/* revent EV_SIGNAL */	350	/* revent EV_SIGNAL */
173	struct ev_signal	351	typedef struct ev_signal
174	{	352	{
175	EV_WATCHER_LIST (ev_signal);	353	EV_WATCHER_LIST (ev_signal)
176		354
177	int signum; /* ro */	355	int signum; /* ro */
178	};	356	} ev_signal;
		357
		358	/* invoked when sigchld is received and waitpid indicates the given pid */
		359	/* revent EV_CHILD */
		360	/* does not support priorities */
		361	typedef struct ev_child
		362	{
		363	EV_WATCHER_LIST (ev_child)
		364
		365	int flags; /* private */
		366	int pid; /* ro */
		367	int rpid; /* rw, holds the received pid */
		368	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		369	} ev_child;
		370
		371	#if EV_STAT_ENABLE
		372	/* st_nlink = 0 means missing file or other error */
		373	# ifdef _WIN32
		374	typedef struct _stati64 ev_statdata;
		375	# else
		376	typedef struct stat ev_statdata;
		377	# endif
		378
		379	/* invoked each time the stat data changes for a given path */
		380	/* revent EV_STAT */
		381	typedef struct ev_stat
		382	{
		383	EV_WATCHER_LIST (ev_stat)
		384
		385	ev_timer timer; /* private */
		386	ev_tstamp interval; /* ro */
		387	const char path; / ro */
		388	ev_statdata prev; /* ro */
		389	ev_statdata attr; /* ro */
		390
		391	int wd; /* wd for inotify, fd for kqueue */
		392	} ev_stat;
		393	#endif
179		394
180	/* invoked when the nothing else needs to be done, keeps the process from blocking */	395	/* invoked when the nothing else needs to be done, keeps the process from blocking */
181	/* revent EV_IDLE */	396	/* revent EV_IDLE */
182	struct ev_idle	397	typedef struct ev_idle
183	{	398	{
184	EV_WATCHER (ev_idle);	399	EV_WATCHER (ev_idle)
185	};	400	} ev_idle;
186		401
187	/* invoked for each run of the mainloop, just before the blocking call */	402	/* invoked for each run of the mainloop, just before the blocking call */
188	/* you can still change events in any way you like */	403	/* you can still change events in any way you like */
189	/* revent EV_PREPARE */	404	/* revent EV_PREPARE */
190	struct ev_prepare	405	typedef struct ev_prepare
191	{	406	{
192	EV_WATCHER (ev_prepare);	407	EV_WATCHER (ev_prepare)
193	};	408	} ev_prepare;
194		409
195	/* invoked for each run of the mainloop, just after the blocking call */	410	/* invoked for each run of the mainloop, just after the blocking call */
196	/* revent EV_CHECK */	411	/* revent EV_CHECK */
197	struct ev_check	412	typedef struct ev_check
198	{	413	{
199	EV_WATCHER (ev_check);	414	EV_WATCHER (ev_check)
200	};	415	} ev_check;
201		416
202	/* invoked when sigchld is received and waitpid indicates the givne pid */	417	/* the callback gets invoked before check in the child process when a fork was detected */
		418	/* revent EV_FORK */
		419	typedef struct ev_fork
		420	{
		421	EV_WATCHER (ev_fork)
		422	} ev_fork;
		423
		424	/* is invoked just before the loop gets destroyed */
203	/* revent EV_CHILD */	425	/* revent EV_CLEANUP */
204	/* does not support priorities */	426	typedef struct ev_cleanup
205	struct ev_child
206	{	427	{
207	EV_WATCHER_LIST (ev_child);	428	EV_WATCHER (ev_cleanup)
		429	} ev_cleanup;
208		430
209	int pid; /* ro */	431	#if EV_EMBED_ENABLE
210	int rpid; /* rw, holds the received pid */	432	/* used to embed an event loop inside another */
211	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	433	/* the callback gets invoked when the event loop has handled events, and can be 0 */
212	};	434	typedef struct ev_embed
		435	{
		436	EV_WATCHER (ev_embed)
		437
		438	struct ev_loop other; / ro */
		439	#undef EV_IO_ENABLE
		440	#define EV_IO_ENABLE 1
		441	ev_io io; /* private */
		442	#undef EV_PREPARE_ENABLE
		443	#define EV_PREPARE_ENABLE 1
		444	ev_prepare prepare; /* private */
		445	ev_check check; /* unused */
		446	ev_timer timer; /* unused */
		447	ev_periodic periodic; /* unused */
		448	ev_idle idle; /* unused */
		449	ev_fork fork; /* private */
		450	ev_cleanup cleanup; /* unused */
		451	} ev_embed;
		452	#endif
		453
		454	#if EV_ASYNC_ENABLE
		455	/* invoked when somebody calls ev_async_send on the watcher */
		456	/* revent EV_ASYNC */
		457	typedef struct ev_async
		458	{
		459	EV_WATCHER (ev_async)
		460
		461	EV_ATOMIC_T sent; /* private */
		462	} ev_async;
		463
		464	# define ev_async_pending(w) (+(w)->sent)
		465	#endif
213		466
214	/* the presence of this union forces similar struct layout */	467	/* the presence of this union forces similar struct layout */
215	union ev_any_watcher	468	union ev_any_watcher
216	{	469	{
217	struct ev_watcher w;	470	struct ev_watcher w;
218	struct ev_watcher_list wl;	471	struct ev_watcher_list wl;
219		472
220	struct ev_io io;	473	struct ev_io io;
221	struct ev_timer timer;	474	struct ev_timer timer;
222	struct ev_periodic periodic;	475	struct ev_periodic periodic;
		476	struct ev_signal signal;
		477	struct ev_child child;
		478	#if EV_STAT_ENABLE
		479	struct ev_stat stat;
		480	#endif
		481	#if EV_IDLE_ENABLE
223	struct ev_idle idle;	482	struct ev_idle idle;
		483	#endif
224	struct ev_prepare prepare;	484	struct ev_prepare prepare;
225	struct ev_check check;	485	struct ev_check check;
226	struct ev_signal signal;	486	#if EV_FORK_ENABLE
227	struct ev_child child;	487	struct ev_fork fork;
		488	#endif
		489	#if EV_CLEANUP_ENABLE
		490	struct ev_cleanup cleanup;
		491	#endif
		492	#if EV_EMBED_ENABLE
		493	struct ev_embed embed;
		494	#endif
		495	#if EV_ASYNC_ENABLE
		496	struct ev_async async;
		497	#endif
228	};	498	};
229		499
230	#define EVMETHOD_AUTO 0 /* consults environment */	500	/* flag bits for ev_default_loop and ev_loop_new */
231	#define EVMETHOD_SELECT 1	501	enum {
232	#define EVMETHOD_POLL 2	502	/* the default */
233	#define EVMETHOD_EPOLL 4	503	EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
234	#define EVMETHOD_KQUEUE 8	504	/* flag bits */
235	#define EVMETHOD_DEVPOLL 16 /* NYI */	505	EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
236	#define EVMETHOD_PORT 32 /* NYI */	506	EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
237	#define EVMETHOD_WIN32 64 /* NYI */	507	/* debugging/feature disable */
238	#define EVMETHOD_ANY ~0 /* any method, do not consult env */	508	EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
		509	#if EV_COMPAT3
		510	EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
		511	#endif
		512	EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
		513	EVFLAG_NOSIGMASK = 0x00400000U, /* avoid modifying the signal mask */
		514	EVFLAG_NOTIMERFD = 0x00800000U /* avoid creating a timerfd */
		515	};
		516
		517	/* method bits to be ored together */
		518	enum {
		519	EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
		520	EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
		521	EVBACKEND_EPOLL = 0x00000004U, /* linux */
		522	EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
		523	EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 / / NYI */
		524	EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
		525	EVBACKEND_LINUXAIO = 0x00000040U, /* linux AIO, 4.19+ */
		526	EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, 5.1+ */
		527	EVBACKEND_ALL = 0x000000FFU, /* all known backends */
		528	EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
		529	};
239		530
240	#if EV_PROTOTYPES	531	#if EV_PROTOTYPES
241	int ev_version_major (void);	532	EV_API_DECL int ev_version_major (void) EV_NOEXCEPT;
242	int ev_version_minor (void);	533	EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT;
243		534
244	ev_tstamp ev_time (void);	535	EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT;
		536	EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT;
		537	EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT;
		538
		539	EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT;
		540	EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */
245		541
246	/* Sets the allocation function to use, works like realloc.	542	/* Sets the allocation function to use, works like realloc.
247	* It is used to allocate and free memory.	543	* It is used to allocate and free memory.
248	* If it returns zero when memory needs to be allocated, the library might abort	544	* If it returns zero when memory needs to be allocated, the library might abort
249	* or take some potentially destructive action.	545	* or take some potentially destructive action.
250	* The default is your system realloc function.	546	* The default is your system realloc function.
251	*/	547	*/
252	void ev_set_allocator (void (cb)(void *ptr, long size));	548	EV_API_DECL void ev_set_allocator (void (cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT;
253		549
254	/* set the callback function to call on a	550	/* set the callback function to call on a
255	* retryable syscall error	551	* retryable syscall error
256	* (such as failed select, poll, epoll_wait)	552	* (such as failed select, poll, epoll_wait)
257	*/	553	*/
258	void ev_set_syserr_cb (void (cb)(const char msg));	554	EV_API_DECL void ev_set_syserr_cb (void (cb)(const char msg) EV_NOEXCEPT) EV_NOEXCEPT;
259		555
260	# if EV_MULTIPLICITY	556	#if EV_MULTIPLICITY
		557
261	/* the default loop is the only one that handles signals and child watchers */	558	/* the default loop is the only one that handles signals and child watchers */
262	/* you can call this as often as you like */	559	/* you can call this as often as you like */
263	struct ev_loop ev_default_loop (int methods); / returns default loop */	560	EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
		561
		562	#ifdef EV_API_STATIC
		563	EV_API_DECL struct ev_loop *ev_default_loop_ptr;
		564	#endif
		565
		566	EV_INLINE struct ev_loop *
		567	ev_default_loop_uc_ (void) EV_NOEXCEPT
		568	{
		569	extern struct ev_loop *ev_default_loop_ptr;
		570
		571	return ev_default_loop_ptr;
		572	}
		573
		574	EV_INLINE int
		575	ev_is_default_loop (EV_P) EV_NOEXCEPT
		576	{
		577	return EV_A == EV_DEFAULT_UC;
		578	}
264		579
265	/* create and destroy alternative loops that don't handle signals */	580	/* create and destroy alternative loops that don't handle signals */
266	struct ev_loop *ev_loop_new (int methods);	581	EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
267	void ev_loop_destroy (EV_P);
268	void ev_loop_fork (EV_P);
269		582
270	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	583	EV_API_DECL ev_tstamp ev_now (EV_P) EV_NOEXCEPT; /* time w.r.t. timers and the eventloop, updated after each poll */
271		584
272	# else	585	#else
273		586
274	int ev_default_loop (int methods); /* returns true when successful */	587	EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */
275		588
276	static ev_tstamp	589	EV_API_DECL ev_tstamp ev_rt_now;
277	ev_now ()
278	{
279	extern ev_tstamp ev_rt_now;
280		590
		591	EV_INLINE ev_tstamp
		592	ev_now (void) EV_NOEXCEPT
		593	{
281	return ev_rt_now;	594	return ev_rt_now;
282	}	595	}
283	# endif
284		596
285	void ev_default_destroy (void); /* destroy the default loop */	597	/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
		598	EV_INLINE int
		599	ev_is_default_loop (void) EV_NOEXCEPT
		600	{
		601	return 1;
		602	}
		603
		604	#endif /* multiplicity */
		605
		606	/* destroy event loops, also works for the default loop */
		607	EV_API_DECL void ev_loop_destroy (EV_P);
		608
286	/* this needs to be called after fork, to duplicate the default loop */	609	/* this needs to be called after fork, to duplicate the loop */
287	/* if you create alternative loops you have to call ev_loop_fork on them */	610	/* when you want to re-use it in the child */
288	/* you can call it in either the parent or the child */	611	/* you can call it in either the parent or the child */
289	/* you can actually call it at any time, anywhere :) */	612	/* you can actually call it at any time, anywhere :) */
290	void ev_default_fork (void);	613	EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT;
291		614
292	int ev_method (EV_P);	615	EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */
293	#endif
294		616
295	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	617	EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */
296	#define EVLOOP_ONESHOT 2 /* block once only */	618
297	#define EVUNLOOP_ONCE 1 /* unloop once */	619	#if EV_WALK_ENABLE
		620	/* walk (almost) all watchers in the loop of a given type, invoking the */
		621	/* callback on every such watcher. The callback might stop the watcher, */
		622	/* but do nothing else with the loop */
		623	EV_API_DECL void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w)) EV_NOEXCEPT;
		624	#endif
		625
		626	#endif /* prototypes */
		627
		628	/* ev_run flags values */
		629	enum {
		630	EVRUN_NOWAIT = 1, /* do not block/wait */
		631	EVRUN_ONCE = 2 /* block once only */
		632	};
		633
		634	/* ev_break how values */
		635	enum {
		636	EVBREAK_CANCEL = 0, /* undo unloop */
		637	EVBREAK_ONE = 1, /* unloop once */
298	#define EVUNLOOP_ALL 2 /* unloop all loops */	638	EVBREAK_ALL = 2 /* unloop all loops */
		639	};
299		640
300	#if EV_PROTOTYPES	641	#if EV_PROTOTYPES
301	void ev_loop (EV_P_ int flags);	642	EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
302	void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */	643	EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_NOEXCEPT; /* break out of the loop */
303		644
304	/*	645	/*
305	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	646	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
306	* keeps one reference. if you have a long-runing watcher you never unregister that	647	* keeps one reference. if you have a long-running watcher you never unregister that
307	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	648	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
308	*/	649	*/
309	void ev_ref (EV_P);	650	EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT;
310	void ev_unref (EV_P);	651	EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT;
311		652
		653	/*
312	/* convinience function, wait for a single event, without registering an event watcher */	654	* convenience function, wait for a single event, without registering an event watcher
313	/* if timeout is < 0, do wait indefinitely */	655	* if timeout is < 0, do wait indefinitely
		656	*/
314	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	657	EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg) EV_NOEXCEPT;
		658
		659	EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		660
		661	# if EV_FEATURE_API
		662	EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */
		663	EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */
		664	EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */
		665
		666	EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
		667	EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
		668
		669	/* advanced stuff for threading etc. support, see docs */
		670	EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT;
		671	EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT;
		672	typedef void (*ev_loop_callback)(EV_P);
		673	EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT;
		674	/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
		675	EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (release)(EV_P) EV_NOEXCEPT, void (acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT;
		676
		677	EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */
		678
		679	/*
		680	* stop/start the timer handling.
		681	*/
		682	EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT;
		683	EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT;
		684	#endif
		685
315	#endif	686	#endif
316		687
317	/* these may evaluate ev multiple times, and the other arguments at most once */	688	/* these may evaluate ev multiple times, and the other arguments at most once */
318	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	689	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
319	#define ev_init(ev,cb_) do { \	690	#define ev_init(ev,cb_) do { \
320	((struct ev_watcher )(void )(ev))->active = \	691	((ev_watcher )(void )(ev))->active = \
321	((struct ev_watcher )(void )(ev))->pending = \	692	((ev_watcher )(void )(ev))->pending = 0; \
322	((struct ev_watcher )(void )(ev))->priority = 0; \	693	ev_set_priority ((ev), 0); \
323	ev_set_cb ((ev), cb_); \	694	ev_set_cb ((ev), cb_); \
324	} while (0)	695	} while (0)
325		696
		697	#define ev_io_modify(ev,events_) do { (ev)->events = (ev)->events & EV__IOFDSET \| (events_); } while (0)
326	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	698	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
327	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	699	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
328	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	700	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
329	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	701	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		702	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		703	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
330	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	704	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
331	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	705	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
332	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	706	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
333	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	707	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
		708	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		709	#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
		710	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
334		711
335	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	712	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
336	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	713	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
337	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	714	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
338	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	715	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		716	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		717	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
339	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	718	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
340	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	719	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
341	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	720	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
		721	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
		722	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
342	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	723	#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
		724	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
343		725
344	#define ev_is_pending(ev) (0 + ((struct ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	726	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
345	#define ev_is_active(ev) (0 + ((struct ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	727	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
346		728
347	#define ev_priority(ev) ((struct ev_watcher )(void )(ev))->priority /* rw */
348	#define ev_cb(ev) (ev)->cb /* rw */	729	#define ev_cb_(ev) (ev)->cb /* rw */
		730	#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
		731
		732	#if EV_MINPRI == EV_MAXPRI
		733	# define ev_priority(ev) ((ev), EV_MINPRI)
349	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	734	# define ev_set_priority(ev,pri) ((ev), (pri))
		735	#else
		736	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
		737	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		738	#endif
		739
		740	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
350		741
351	#ifndef ev_set_cb	742	#ifndef ev_set_cb
352	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	743	/* memmove is used here to avoid strict aliasing violations, and hopefully is optimized out by any reasonable compiler */
		744	# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
353	#endif	745	#endif
354		746
355	/* stopping (enabling, adding) a watcher does nothing if it is already running */	747	/* stopping (enabling, adding) a watcher does nothing if it is already running */
356	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	748	/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
357	#if EV_PROTOTYPES	749	#if EV_PROTOTYPES
358		750
359	/* feeds an event into a watcher as if the event actually occured */	751	/* feeds an event into a watcher as if the event actually occurred */
360	/* accepts any ev_watcher type */	752	/* accepts any ev_watcher type */
361	void ev_feed_event (EV_P_ void *w, int revents);	753	EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT;
362	void ev_feed_fd_event (EV_P_ int fd, int revents);	754	EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT;
		755	#if EV_SIGNAL_ENABLE
		756	EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT;
363	void ev_feed_signal_event (EV_P_ int signum);	757	EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT;
		758	#endif
		759	EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
		760	EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT;
364		761
365	void ev_io_start (EV_P_ struct ev_io *w);	762	EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT;
366	void ev_io_stop (EV_P_ struct ev_io *w);	763	EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT;
367		764
368	void ev_timer_start (EV_P_ struct ev_timer *w);	765	EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT;
369	void ev_timer_stop (EV_P_ struct ev_timer *w);	766	EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT;
370	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	767	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
371	void ev_timer_again (EV_P_ struct ev_timer *w);	768	EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT;
		769	/* return remaining time */
		770	EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT;
372		771
373	void ev_periodic_start (EV_P_ struct ev_periodic *w);	772	#if EV_PERIODIC_ENABLE
374	void ev_periodic_stop (EV_P_ struct ev_periodic *w);	773	EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT;
375	void ev_periodic_again (EV_P_ struct ev_periodic *w);	774	EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT;
376		775	EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT;
377	void ev_idle_start (EV_P_ struct ev_idle *w);	776	#endif
378	void ev_idle_stop (EV_P_ struct ev_idle *w);
379
380	void ev_prepare_start (EV_P_ struct ev_prepare *w);
381	void ev_prepare_stop (EV_P_ struct ev_prepare *w);
382
383	void ev_check_start (EV_P_ struct ev_check *w);
384	void ev_check_stop (EV_P_ struct ev_check *w);
385		777
386	/* only supported in the default loop */	778	/* only supported in the default loop */
387	void ev_signal_start (EV_P_ struct ev_signal *w);	779	#if EV_SIGNAL_ENABLE
388	void ev_signal_stop (EV_P_ struct ev_signal *w);	780	EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT;
		781	EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT;
		782	#endif
389		783
390	/* only supported in the default loop */	784	/* only supported in the default loop */
391	void ev_child_start (EV_P_ struct ev_child *w);	785	# if EV_CHILD_ENABLE
392	void ev_child_stop (EV_P_ struct ev_child *w);	786	EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT;
		787	EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT;
393	#endif	788	# endif
394		789
395	#ifdef __cplusplus	790	# if EV_STAT_ENABLE
396	}	791	EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT;
		792	EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT;
		793	EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT;
397	#endif	794	# endif
398		795
		796	# if EV_IDLE_ENABLE
		797	EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT;
		798	EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT;
399	#endif	799	# endif
400		800
		801	#if EV_PREPARE_ENABLE
		802	EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT;
		803	EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT;
		804	#endif
		805
		806	#if EV_CHECK_ENABLE
		807	EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT;
		808	EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT;
		809	#endif
		810
		811	# if EV_FORK_ENABLE
		812	EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT;
		813	EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT;
		814	# endif
		815
		816	# if EV_CLEANUP_ENABLE
		817	EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
		818	EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
		819	# endif
		820
		821	# if EV_EMBED_ENABLE
		822	/* only supported when loop to be embedded is in fact embeddable */
		823	EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT;
		824	EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT;
		825	EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT;
		826	# endif
		827
		828	# if EV_ASYNC_ENABLE
		829	EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT;
		830	EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT;
		831	EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT;
		832	# endif
		833
		834	#if EV_COMPAT3
		835	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		836	#define EVLOOP_ONESHOT EVRUN_ONCE
		837	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		838	#define EVUNLOOP_ONE EVBREAK_ONE
		839	#define EVUNLOOP_ALL EVBREAK_ALL
		840	#if EV_PROTOTYPES
		841	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		842	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		843	EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
		844	EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
		845	#if EV_FEATURE_API
		846	EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
		847	EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
		848	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		849	#endif
		850	#endif
		851	#else
		852	typedef struct ev_loop ev_loop;
		853	#endif
		854
		855	#endif
		856
		857	EV_CPP(})
		858
		859	#endif
		860

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Comparing libev/ev.h (file contents): Revision 1.49 by root, Sat Nov 10 21:19:30 2007 UTC vs. Revision 1.202 by root, Wed Jan 22 02:00:13 2020 UTC

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Comparing libev/ev.h (file contents):
Revision 1.49 by root, Sat Nov 10 21:19:30 2007 UTC vs.
Revision 1.202 by root, Wed Jan 22 02:00:13 2020 UTC