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

Comparing libev/ev.h (file contents):
Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.197 by root, Fri Dec 20 20:51:46 2019 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
49	#endif	91	#endif
50		92
51	#ifndef EV_PERIODIC_ENABLE	93	#ifndef EV_PERIODIC_ENABLE
52	# define EV_PERIODIC_ENABLE 1	94	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
53	#endif	95	#endif
54		96
55	#ifndef EV_STAT_ENABLE	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
56	# define EV_STAT_ENABLE 1	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
57	#endif	135	#endif
58		136
59	#ifndef EV_EMBED_ENABLE	137	#ifndef EV_EMBED_ENABLE
60	# define EV_EMBED_ENABLE 1	138	# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
		139	#endif
		140
		141	#ifndef EV_WALK_ENABLE
		142	# define EV_WALK_ENABLE 0 /* not yet */
61	#endif	143	#endif
62		144
63	/*****************************************************************************/	145	/*****************************************************************************/
64		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
65	#if EV_STAT_ENABLE	166	#if EV_STAT_ENABLE
		167	# ifdef _WIN32
		168	# include <time.h>
		169	# include <sys/types.h>
		170	# endif
66	# include <sys/stat.h>	171	# include <sys/stat.h>
67	#endif	172	#endif
68		173
69	/* support multiple event loops? */	174	/* support multiple event loops? */
70	#if EV_MULTIPLICITY	175	#if EV_MULTIPLICITY
71	struct ev_loop;	176	struct ev_loop;
72	# define EV_P struct ev_loop *loop	177	# define EV_P struct ev_loop loop / a loop as sole parameter in a declaration */
73	# define EV_P_ EV_P,	178	# define EV_P_ EV_P, /* a loop as first of multiple parameters */
74	# define EV_A loop	179	# define EV_A loop /* a loop as sole argument to a function call */
75	# define EV_A_ EV_A,	180	# define EV_A_ EV_A, /* a loop as first of multiple arguments */
76	# 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 */
77	# 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 */
78	#else	185	#else
79	# define EV_P void	186	# define EV_P void
80	# define EV_P_	187	# define EV_P_
81	# define EV_A	188	# define EV_A
82	# define EV_A_	189	# define EV_A_
		190	# define EV_DEFAULT
83	# define EV_DEFAULT_A	191	# define EV_DEFAULT_
		192	# define EV_DEFAULT_UC
84	# define EV_DEFAULT_A_	193	# define EV_DEFAULT_UC_
85
86	# undef EV_EMBED_ENABLE	194	# undef EV_EMBED_ENABLE
87	#endif	195	#endif
88		196
		197	/* EV_INLINE is used for functions in header files */
		198	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		199	# define EV_INLINE static inline
		200	#else
		201	# define EV_INLINE static
		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 */
		211	#ifndef EV_PROTOTYPES
		212	# define EV_PROTOTYPES 1
		213	#endif
		214
		215	/*****************************************************************************/
		216
		217	#define EV_VERSION_MAJOR 4
		218	#define EV_VERSION_MINOR 27
		219
89	/* eventmask, revents, events... */	220	/* eventmask, revents, events... */
90	#define EV_UNDEF -1L /* guaranteed to be invalid */	221	enum {
		222	EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
91	#define EV_NONE 0x00L /* no events */	223	EV_NONE = 0x00, /* no events */
92	#define EV_READ 0x01L /* ev_io detected read will not block */	224	EV_READ = 0x01, /* ev_io detected read will not block */
93	#define EV_WRITE 0x02L /* ev_io detected write 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 */
94	#define EV_TIMEOUT 0x00000100L /* timer timed out */	228	EV_TIMER = 0x00000100, /* timer timed out */
		229	#if EV_COMPAT3
		230	EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
		231	#endif
95	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	232	EV_PERIODIC = 0x00000200, /* periodic timer timed out */
96	#define EV_SIGNAL 0x00000400L /* signal was received */	233	EV_SIGNAL = 0x00000400, /* signal was received */
		234	EV_CHILD = 0x00000800, /* child/pid had status change */
		235	EV_STAT = 0x00001000, /* stat data changed */
97	#define EV_IDLE 0x00000800L /* event loop is idling */	236	EV_IDLE = 0x00002000, /* event loop is idling */
98	#define EV_PREPARE 0x00001000L /* event loop about to poll */	237	EV_PREPARE = 0x00004000, /* event loop about to poll */
99	#define EV_CHECK 0x00002000L /* event loop finished poll */	238	EV_CHECK = 0x00008000, /* event loop finished poll */
100	#define EV_CHILD 0x00004000L /* child/pid had status change */
101	#define EV_EMBED 0x00008000L /* embedded event loop needs sweep */	239	EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
102	#define EV_STAT 0x00010000L /* stat data changed */	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 */
103	#define EV_ERROR 0x80000000L /* sent when an error occurs */	244	EV_ERROR = (int)0x80000000 /* sent when an error occurs */
		245	};
104		246
105	/* can be used to add custom fields to all watchers, while losing binary compatibility */	247	/* can be used to add custom fields to all watchers, while losing binary compatibility */
106	#ifndef EV_COMMON	248	#ifndef EV_COMMON
107	# define EV_COMMON void *data;	249	# define EV_COMMON void *data;
108	#endif	250	#endif
109	#ifndef EV_PROTOTYPES
110	# define EV_PROTOTYPES 1
111	#endif
112
113	#define EV_VERSION_MAJOR 1
114	#define EV_VERSION_MINOR 1
115		251
116	#ifndef EV_CB_DECLARE	252	#ifndef EV_CB_DECLARE
117	# 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);
118	#endif	254	#endif
119	#ifndef EV_CB_INVOKE	255	#ifndef EV_CB_INVOKE
120	# 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))
121	#endif	257	#endif
122		258
		259	/* not official, do not use */
		260	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
		261
123	/*	262	/*
124	* struct member types:	263	* struct member types:
125	* 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.
126	* 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.
127	* 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.
128	*/	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
129		284
130	/* shared by all watchers */	285	/* shared by all watchers */
131	#define EV_WATCHER(type) \	286	#define EV_WATCHER(type) \
132	int active; /* private */ \	287	int active; /* private */ \
133	int pending; /* private */ \	288	int pending; /* private */ \
134	int priority; /* private */ \	289	EV_DECL_PRIORITY /* private */ \
135	EV_COMMON /* rw */ \	290	EV_COMMON /* rw */ \
136	EV_CB_DECLARE (type) /* private */	291	EV_CB_DECLARE (type) /* private */
137		292
138	#define EV_WATCHER_LIST(type) \	293	#define EV_WATCHER_LIST(type) \
139	EV_WATCHER (type) \	294	EV_WATCHER (type) \
159	typedef struct ev_watcher_time	314	typedef struct ev_watcher_time
160	{	315	{
161	EV_WATCHER_TIME (ev_watcher_time)	316	EV_WATCHER_TIME (ev_watcher_time)
162	} ev_watcher_time;	317	} ev_watcher_time;
163		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;
		328
164	/* invoked after a specific time, repeatable (based on monotonic clock) */	329	/* invoked after a specific time, repeatable (based on monotonic clock) */
165	/* revent EV_TIMEOUT */	330	/* revent EV_TIMEOUT */
166	typedef struct ev_timer	331	typedef struct ev_timer
167	{	332	{
168	EV_WATCHER_TIME (ev_timer)	333	EV_WATCHER_TIME (ev_timer)
…		…
174	/* revent EV_PERIODIC */	339	/* revent EV_PERIODIC */
175	typedef struct ev_periodic	340	typedef struct ev_periodic
176	{	341	{
177	EV_WATCHER_TIME (ev_periodic)	342	EV_WATCHER_TIME (ev_periodic)
178		343
		344	ev_tstamp offset; /* rw */
179	ev_tstamp interval; /* rw */	345	ev_tstamp interval; /* rw */
180	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 */
181	} ev_periodic;	347	} ev_periodic;
182
183	/* invoked when fd is either EV_READable or EV_WRITEable */
184	/* revent EV_READ, EV_WRITE */
185	typedef struct ev_io
186	{
187	EV_WATCHER_LIST (ev_io)
188
189	int fd; /* ro */
190	int events; /* ro */
191	} ev_io;
192		348
193	/* invoked when the given signal has been received */	349	/* invoked when the given signal has been received */
194	/* revent EV_SIGNAL */	350	/* revent EV_SIGNAL */
195	typedef struct ev_signal	351	typedef struct ev_signal
196	{	352	{
197	EV_WATCHER_LIST (ev_signal)	353	EV_WATCHER_LIST (ev_signal)
198		354
199	int signum; /* ro */	355	int signum; /* ro */
200	} ev_signal;	356	} ev_signal;
201		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
		394
		395	#if EV_IDLE_ENABLE
202	/* invoked when the nothing else needs to be done, keeps the process from blocking */	396	/* invoked when the nothing else needs to be done, keeps the process from blocking */
203	/* revent EV_IDLE */	397	/* revent EV_IDLE */
204	typedef struct ev_idle	398	typedef struct ev_idle
205	{	399	{
206	EV_WATCHER (ev_idle)	400	EV_WATCHER (ev_idle)
207	} ev_idle;	401	} ev_idle;
		402	#endif
208		403
209	/* invoked for each run of the mainloop, just before the blocking call */	404	/* invoked for each run of the mainloop, just before the blocking call */
210	/* you can still change events in any way you like */	405	/* you can still change events in any way you like */
211	/* revent EV_PREPARE */	406	/* revent EV_PREPARE */
212	typedef struct ev_prepare	407	typedef struct ev_prepare
…		…
219	typedef struct ev_check	414	typedef struct ev_check
220	{	415	{
221	EV_WATCHER (ev_check)	416	EV_WATCHER (ev_check)
222	} ev_check;	417	} ev_check;
223		418
224	/* invoked when sigchld is received and waitpid indicates the given pid */	419	#if EV_FORK_ENABLE
		420	/* the callback gets invoked before check in the child process when a fork was detected */
		421	/* revent EV_FORK */
		422	typedef struct ev_fork
		423	{
		424	EV_WATCHER (ev_fork)
		425	} ev_fork;
		426	#endif
		427
		428	#if EV_CLEANUP_ENABLE
		429	/* is invoked just before the loop gets destroyed */
225	/* revent EV_CHILD */	430	/* revent EV_CLEANUP */
226	/* does not support priorities */
227	typedef struct ev_child	431	typedef struct ev_cleanup
228	{	432	{
229	EV_WATCHER_LIST (ev_child)	433	EV_WATCHER (ev_cleanup)
230		434	} ev_cleanup;
231	int pid; /* ro */	435	#endif
232	int rpid; /* rw, holds the received pid */
233	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
234	} ev_child;
235		436
236	#if EV_EMBED_ENABLE	437	#if EV_EMBED_ENABLE
237	/* used to embed an event loop inside another */	438	/* used to embed an event loop inside another */
238	/* the callback gets invoked when the event loop has handled events, and can be 0 */	439	/* the callback gets invoked when the event loop has handled events, and can be 0 */
239	typedef struct ev_embed	440	typedef struct ev_embed
240	{	441	{
241	EV_WATCHER (ev_embed)	442	EV_WATCHER (ev_embed)
242		443
243	ev_io io; /* private */
244	struct ev_loop loop; / ro */	444	struct ev_loop other; / ro */
		445	ev_io io; /* private */
		446	ev_prepare prepare; /* private */
		447	ev_check check; /* unused */
		448	ev_timer timer; /* unused */
		449	ev_periodic periodic; /* unused */
		450	ev_idle idle; /* unused */
		451	ev_fork fork; /* private */
		452	#if EV_CLEANUP_ENABLE
		453	ev_cleanup cleanup; /* unused */
		454	#endif
245	} ev_embed;	455	} ev_embed;
246	#endif	456	#endif
247		457
248	#if EV_STAT_ENABLE	458	#if EV_ASYNC_ENABLE
249	/* st_nlink = 0 means missing file or other error */	459	/* invoked when somebody calls ev_async_send on the watcher */
250	typedef struct stat ev_statdata;
251
252	/* invoked each time the stat data changes for a given path */
253	/* revent EV_STAT */	460	/* revent EV_ASYNC */
254	typedef struct ev_stat	461	typedef struct ev_async
255	{	462	{
256	EV_WATCHER (ev_stat)	463	EV_WATCHER (ev_async)
257		464
258	ev_timer timer; /* private */	465	EV_ATOMIC_T sent; /* private */
259	ev_tstamp interval; /* rw */	466	} ev_async;
260	const char path; / ro */	467
261	ev_statdata prev; /* ro */	468	# define ev_async_pending(w) (+(w)->sent)
262	ev_statdata attr; /* ro */
263	} ev_stat;
264	#endif	469	#endif
265		470
266	/* the presence of this union forces similar struct layout */	471	/* the presence of this union forces similar struct layout */
267	union ev_any_watcher	472	union ev_any_watcher
268	{	473	{
…		…
270	struct ev_watcher_list wl;	475	struct ev_watcher_list wl;
271		476
272	struct ev_io io;	477	struct ev_io io;
273	struct ev_timer timer;	478	struct ev_timer timer;
274	struct ev_periodic periodic;	479	struct ev_periodic periodic;
		480	struct ev_signal signal;
		481	struct ev_child child;
		482	#if EV_STAT_ENABLE
		483	struct ev_stat stat;
		484	#endif
		485	#if EV_IDLE_ENABLE
275	struct ev_idle idle;	486	struct ev_idle idle;
		487	#endif
276	struct ev_prepare prepare;	488	struct ev_prepare prepare;
277	struct ev_check check;	489	struct ev_check check;
278	struct ev_signal signal;	490	#if EV_FORK_ENABLE
279	struct ev_child child;	491	struct ev_fork fork;
		492	#endif
		493	#if EV_CLEANUP_ENABLE
		494	struct ev_cleanup cleanup;
		495	#endif
280	#if EV_EMBED_ENABLE	496	#if EV_EMBED_ENABLE
281	struct ev_embed embed;	497	struct ev_embed embed;
282	#endif	498	#endif
283	#if EV_STAT_ENABLE	499	#if EV_ASYNC_ENABLE
284	struct ev_stat stat;	500	struct ev_async async;
285	#endif	501	#endif
286	};	502	};
287		503
288	/* bits for ev_default_loop and ev_loop_new */	504	/* flag bits for ev_default_loop and ev_loop_new */
		505	enum {
289	/* the default */	506	/* the default */
290	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	507	EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
291	/* flag bits */	508	/* flag bits */
292	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	509	EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
		510	EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
		511	/* debugging/feature disable */
		512	EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
		513	#if EV_COMPAT3
		514	EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
		515	#endif
		516	EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
		517	EVFLAG_NOSIGMASK = 0x00400000U, /* avoid modifying the signal mask */
		518	EVFLAG_NOTIMERFD = 0x00800000U /* avoid creating a timerfd */
		519	};
		520
293	/* method bits to be ored together */	521	/* method bits to be ored together */
		522	enum {
294	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	523	EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
295	#define EVBACKEND_POLL 0x00000002UL /* !win */	524	EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
296	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	525	EVBACKEND_EPOLL = 0x00000004U, /* linux */
297	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	526	EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
298	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	527	EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 / / NYI */
299	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	528	EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
		529	EVBACKEND_LINUXAIO = 0x00000040U, /* linuix AIO, 4.19+ */
		530	EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, 5.1+ */
		531	EVBACKEND_ALL = 0x000000FFU, /* all known backends */
		532	EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
		533	};
300		534
301	#if EV_PROTOTYPES	535	#if EV_PROTOTYPES
302	int ev_version_major (void);	536	EV_API_DECL int ev_version_major (void) EV_NOEXCEPT;
303	int ev_version_minor (void);	537	EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT;
304		538
305	unsigned int ev_supported_backends (void);	539	EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT;
306	unsigned int ev_recommended_backends (void);	540	EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT;
307	unsigned int ev_embeddable_backends (void);	541	EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT;
308		542
309	ev_tstamp ev_time (void);	543	EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT;
		544	EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */
310		545
311	/* Sets the allocation function to use, works like realloc.	546	/* Sets the allocation function to use, works like realloc.
312	* It is used to allocate and free memory.	547	* It is used to allocate and free memory.
313	* If it returns zero when memory needs to be allocated, the library might abort	548	* If it returns zero when memory needs to be allocated, the library might abort
314	* or take some potentially destructive action.	549	* or take some potentially destructive action.
315	* The default is your system realloc function.	550	* The default is your system realloc function.
316	*/	551	*/
317	void ev_set_allocator (void (cb)(void *ptr, long size));	552	EV_API_DECL void ev_set_allocator (void (cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT;
318		553
319	/* set the callback function to call on a	554	/* set the callback function to call on a
320	* retryable syscall error	555	* retryable syscall error
321	* (such as failed select, poll, epoll_wait)	556	* (such as failed select, poll, epoll_wait)
322	*/	557	*/
323	void ev_set_syserr_cb (void (cb)(const char msg));	558	EV_API_DECL void ev_set_syserr_cb (void (cb)(const char msg) EV_NOEXCEPT) EV_NOEXCEPT;
324		559
325	# if EV_MULTIPLICITY	560	#if EV_MULTIPLICITY
		561
326	/* the default loop is the only one that handles signals and child watchers */	562	/* the default loop is the only one that handles signals and child watchers */
327	/* you can call this as often as you like */	563	/* you can call this as often as you like */
328	static struct ev_loop *	564	EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
329	ev_default_loop (unsigned int flags)	565
		566	#ifdef EV_API_STATIC
		567	EV_API_DECL struct ev_loop *ev_default_loop_ptr;
		568	#endif
		569
		570	EV_INLINE struct ev_loop *
		571	ev_default_loop_uc_ (void) EV_NOEXCEPT
330	{	572	{
331	extern struct ev_loop *ev_default_loop_ptr;	573	extern struct ev_loop *ev_default_loop_ptr;
332	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
333
334	if (!ev_default_loop_ptr)
335	ev_default_loop_init (flags);
336		574
337	return ev_default_loop_ptr;	575	return ev_default_loop_ptr;
338	}	576	}
339		577
		578	EV_INLINE int
		579	ev_is_default_loop (EV_P) EV_NOEXCEPT
		580	{
		581	return EV_A == EV_DEFAULT_UC;
		582	}
		583
340	/* create and destroy alternative loops that don't handle signals */	584	/* create and destroy alternative loops that don't handle signals */
341	struct ev_loop *ev_loop_new (unsigned int flags);	585	EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
342	void ev_loop_destroy (EV_P);
343	void ev_loop_fork (EV_P);
344		586
345	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	587	EV_API_DECL ev_tstamp ev_now (EV_P) EV_NOEXCEPT; /* time w.r.t. timers and the eventloop, updated after each poll */
346		588
347	# else	589	#else
348		590
349	int ev_default_loop (unsigned int flags); /* returns true when successful */	591	EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */
350		592
351	static ev_tstamp	593	EV_API_DECL ev_tstamp ev_rt_now;
352	ev_now (void)
353	{
354	extern ev_tstamp ev_rt_now;
355		594
		595	EV_INLINE ev_tstamp
		596	ev_now (void) EV_NOEXCEPT
		597	{
356	return ev_rt_now;	598	return ev_rt_now;
357	}	599	}
358	# endif
359		600
360	void ev_default_destroy (void); /* destroy the default loop */	601	/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
		602	EV_INLINE int
		603	ev_is_default_loop (void) EV_NOEXCEPT
		604	{
		605	return 1;
		606	}
		607
		608	#endif /* multiplicity */
		609
		610	/* destroy event loops, also works for the default loop */
		611	EV_API_DECL void ev_loop_destroy (EV_P);
		612
361	/* this needs to be called after fork, to duplicate the default loop */	613	/* this needs to be called after fork, to duplicate the loop */
362	/* if you create alternative loops you have to call ev_loop_fork on them */	614	/* when you want to re-use it in the child */
363	/* you can call it in either the parent or the child */	615	/* you can call it in either the parent or the child */
364	/* you can actually call it at any time, anywhere :) */	616	/* you can actually call it at any time, anywhere :) */
365	void ev_default_fork (void);	617	EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT;
366		618
367	unsigned int ev_backend (EV_P);	619	EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */
368	#endif
369		620
370	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	621	EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */
371	#define EVLOOP_ONESHOT 2 /* block once only */	622
372	#define EVUNLOOP_CANCEL 0 /* undo unloop */	623	#if EV_WALK_ENABLE
373	#define EVUNLOOP_ONE 1 /* unloop once */	624	/* walk (almost) all watchers in the loop of a given type, invoking the */
		625	/* callback on every such watcher. The callback might stop the watcher, */
		626	/* but do nothing else with the loop */
		627	EV_API_DECL void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w)) EV_NOEXCEPT;
		628	#endif
		629
		630	#endif /* prototypes */
		631
		632	/* ev_run flags values */
		633	enum {
		634	EVRUN_NOWAIT = 1, /* do not block/wait */
		635	EVRUN_ONCE = 2 /* block once only */
		636	};
		637
		638	/* ev_break how values */
		639	enum {
		640	EVBREAK_CANCEL = 0, /* undo unloop */
		641	EVBREAK_ONE = 1, /* unloop once */
374	#define EVUNLOOP_ALL 2 /* unloop all loops */	642	EVBREAK_ALL = 2 /* unloop all loops */
		643	};
375		644
376	#if EV_PROTOTYPES	645	#if EV_PROTOTYPES
377	void ev_loop (EV_P_ int flags);	646	EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
378	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 */	647	EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_NOEXCEPT; /* break out of the loop */
379		648
380	/*	649	/*
381	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	650	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
382	* keeps one reference. if you have a long-runing watcher you never unregister that	651	* keeps one reference. if you have a long-running watcher you never unregister that
383	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	652	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
384	*/	653	*/
385	void ev_ref (EV_P);	654	EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT;
386	void ev_unref (EV_P);	655	EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT;
387		656
		657	/*
388	/* convinience function, wait for a single event, without registering an event watcher */	658	* convenience function, wait for a single event, without registering an event watcher
389	/* if timeout is < 0, do wait indefinitely */	659	* if timeout is < 0, do wait indefinitely
		660	*/
390	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	661	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;
		662
		663	# if EV_FEATURE_API
		664	EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */
		665	EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */
		666	EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */
		667
		668	EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
		669	EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
		670
		671	/* advanced stuff for threading etc. support, see docs */
		672	EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT;
		673	EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT;
		674	typedef void (*ev_loop_callback)(EV_P);
		675	EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT;
		676	/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
		677	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;
		678
		679	EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */
		680	EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		681
		682	/*
		683	* stop/start the timer handling.
		684	*/
		685	EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT;
		686	EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT;
		687	#endif
		688
391	#endif	689	#endif
392		690
393	/* these may evaluate ev multiple times, and the other arguments at most once */	691	/* these may evaluate ev multiple times, and the other arguments at most once */
394	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	692	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
395	#define ev_init(ev,cb_) do { \	693	#define ev_init(ev,cb_) do { \
396	((ev_watcher )(void )(ev))->active = \	694	((ev_watcher )(void )(ev))->active = \
397	((ev_watcher )(void )(ev))->pending = \	695	((ev_watcher )(void )(ev))->pending = 0; \
398	((ev_watcher )(void )(ev))->priority = 0; \	696	ev_set_priority ((ev), 0); \
399	ev_set_cb ((ev), cb_); \	697	ev_set_cb ((ev), cb_); \
400	} while (0)	698	} while (0)
401		699
402	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	700	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
403	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	701	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
404	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	702	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
405	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	703	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		704	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		705	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
406	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	706	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
407	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	707	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
408	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	708	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
409	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
410	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	709	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
411	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)	710	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		711	#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
		712	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
412		713
413	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	714	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
414	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	715	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
415	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	716	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
416	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	717	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		718	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		719	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
417	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	720	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
418	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	721	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
419	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	722	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
420	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
421	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	723	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
422	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	724	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		725	#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
		726	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
423		727
424	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	728	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
425	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	729	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
426		730
427	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */
428	#define ev_cb(ev) (ev)->cb /* rw */	731	#define ev_cb_(ev) (ev)->cb /* rw */
		732	#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
		733
		734	#if EV_MINPRI == EV_MAXPRI
		735	# define ev_priority(ev) ((ev), EV_MINPRI)
429	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	736	# define ev_set_priority(ev,pri) ((ev), (pri))
		737	#else
		738	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
		739	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		740	#endif
		741
		742	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
430		743
431	#ifndef ev_set_cb	744	#ifndef ev_set_cb
432	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	745	# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
433	#endif	746	#endif
434		747
435	/* stopping (enabling, adding) a watcher does nothing if it is already running */	748	/* stopping (enabling, adding) a watcher does nothing if it is already running */
436	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	749	/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
437	#if EV_PROTOTYPES	750	#if EV_PROTOTYPES
438		751
439	/* feeds an event into a watcher as if the event actually occured */	752	/* feeds an event into a watcher as if the event actually occurred */
440	/* accepts any ev_watcher type */	753	/* accepts any ev_watcher type */
441	void ev_feed_event (EV_P_ void *w, int revents);	754	EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT;
442	void ev_feed_fd_event (EV_P_ int fd, int revents);	755	EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT;
		756	#if EV_SIGNAL_ENABLE
		757	EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT;
443	void ev_feed_signal_event (EV_P_ int signum);	758	EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT;
		759	#endif
		760	EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
		761	EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT;
444		762
445	void ev_io_start (EV_P_ ev_io *w);	763	EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT;
446	void ev_io_stop (EV_P_ ev_io *w);	764	EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT;
447		765
448	void ev_timer_start (EV_P_ ev_timer *w);	766	EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT;
449	void ev_timer_stop (EV_P_ ev_timer *w);	767	EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT;
450	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	768	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
451	void ev_timer_again (EV_P_ ev_timer *w);	769	EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT;
		770	/* return remaining time */
		771	EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT;
452		772
453	#if EV_PERIODIC_ENABLE	773	#if EV_PERIODIC_ENABLE
454	void ev_periodic_start (EV_P_ ev_periodic *w);	774	EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT;
455	void ev_periodic_stop (EV_P_ ev_periodic *w);	775	EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT;
456	void ev_periodic_again (EV_P_ ev_periodic *w);	776	EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT;
457	#endif	777	#endif
458
459	void ev_idle_start (EV_P_ ev_idle *w);
460	void ev_idle_stop (EV_P_ ev_idle *w);
461
462	void ev_prepare_start (EV_P_ ev_prepare *w);
463	void ev_prepare_stop (EV_P_ ev_prepare *w);
464
465	void ev_check_start (EV_P_ ev_check *w);
466	void ev_check_stop (EV_P_ ev_check *w);
467		778
468	/* only supported in the default loop */	779	/* only supported in the default loop */
		780	#if EV_SIGNAL_ENABLE
469	void ev_signal_start (EV_P_ ev_signal *w);	781	EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT;
470	void ev_signal_stop (EV_P_ ev_signal *w);	782	EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT;
		783	#endif
471		784
472	/* only supported in the default loop */	785	/* only supported in the default loop */
		786	# if EV_CHILD_ENABLE
473	void ev_child_start (EV_P_ ev_child *w);	787	EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT;
474	void ev_child_stop (EV_P_ ev_child *w);	788	EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT;
		789	# endif
		790
		791	# if EV_STAT_ENABLE
		792	EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT;
		793	EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT;
		794	EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT;
		795	# endif
		796
		797	# if EV_IDLE_ENABLE
		798	EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT;
		799	EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT;
		800	# endif
		801
		802	#if EV_PREPARE_ENABLE
		803	EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT;
		804	EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT;
		805	#endif
		806
		807	#if EV_CHECK_ENABLE
		808	EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT;
		809	EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT;
		810	#endif
		811
		812	# if EV_FORK_ENABLE
		813	EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT;
		814	EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT;
		815	# endif
		816
		817	# if EV_CLEANUP_ENABLE
		818	EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
		819	EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
		820	# endif
475		821
476	# if EV_EMBED_ENABLE	822	# if EV_EMBED_ENABLE
477	/* only supported when loop to be embedded is in fact embeddable */	823	/* only supported when loop to be embedded is in fact embeddable */
478	void ev_embed_start (EV_P_ ev_embed *w);	824	EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT;
479	void ev_embed_stop (EV_P_ ev_embed *w);	825	EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT;
480	void ev_embed_sweep (EV_P_ ev_embed *w);	826	EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT;
481	# endif
482
483	# if EV_STAT_ENABLE
484	void ev_stat_start (EV_P_ ev_stat *w);
485	void ev_stat_stop (EV_P_ ev_stat *w);
486	void ev_stat_stat (EV_P_ ev_stat *w);
487	# endif
488
489	#endif	827	# endif
490		828
491	#ifdef __cplusplus	829	# if EV_ASYNC_ENABLE
492	}	830	EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT;
		831	EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT;
		832	EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT;
493	#endif	833	# endif
494		834
		835	#if EV_COMPAT3
		836	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		837	#define EVLOOP_ONESHOT EVRUN_ONCE
		838	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		839	#define EVUNLOOP_ONE EVBREAK_ONE
		840	#define EVUNLOOP_ALL EVBREAK_ALL
		841	#if EV_PROTOTYPES
		842	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		843	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		844	EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
		845	EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
		846	#if EV_FEATURE_API
		847	EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
		848	EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
		849	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		850	#endif
495	#endif	851	#endif
		852	#else
		853	typedef struct ev_loop ev_loop;
		854	#endif
496		855
		856	#endif
		857
		858	EV_CPP(})
		859
		860	#endif
		861

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Comparing libev/ev.h (file contents): Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs. Revision 1.197 by root, Fri Dec 20 20:51:46 2019 UTC

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Comparing libev/ev.h (file contents):
Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.197 by root, Fri Dec 20 20:51:46 2019 UTC