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Comparing libev/ev.c (file contents):
Revision 1.155 by root, Wed Nov 28 17:32:24 2007 UTC vs.
Revision 1.228 by root, Fri May 2 08:07:37 2008 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
9	* met:	9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
10	*	27	*
11	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
12	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
13	*	30	* in which case the provisions of the GPL are applicable instead of
14	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
15	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
16	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
17	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
18	*	35	* and other provisions required by the GPL. If you do not delete the
19	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
20	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
21	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	38	*/
31		39
32	#ifdef __cplusplus	40	#ifdef __cplusplus
33	extern "C" {	41	extern "C" {
34	#endif	42	#endif
35		43
		44	/* this big block deduces configuration from config.h */
36	#ifndef EV_STANDALONE	45	#ifndef EV_STANDALONE
37	# ifdef EV_CONFIG_H	46	# ifdef EV_CONFIG_H
38	# include EV_CONFIG_H	47	# include EV_CONFIG_H
39	# else	48	# else
40	# include "config.h"	49	# include "config.h"
…		…
51	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	61	# define EV_USE_MONOTONIC 0
53	# endif	62	# endif
54	# ifndef EV_USE_REALTIME	63	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	64	# define EV_USE_REALTIME 0
		65	# endif
		66	# endif
		67
		68	# ifndef EV_USE_NANOSLEEP
		69	# if HAVE_NANOSLEEP
		70	# define EV_USE_NANOSLEEP 1
		71	# else
		72	# define EV_USE_NANOSLEEP 0
56	# endif	73	# endif
57	# endif	74	# endif
58		75
59	# ifndef EV_USE_SELECT	76	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	77	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
102	# else	119	# else
103	# define EV_USE_INOTIFY 0	120	# define EV_USE_INOTIFY 0
104	# endif	121	# endif
105	# endif	122	# endif
106		123
		124	# ifndef EV_USE_EVENTFD
		125	# if HAVE_EVENTFD
		126	# define EV_USE_EVENTFD 1
		127	# else
		128	# define EV_USE_EVENTFD 0
		129	# endif
		130	# endif
		131
107	#endif	132	#endif
108		133
109	#include <math.h>	134	#include <math.h>
110	#include <stdlib.h>	135	#include <stdlib.h>
111	#include <fcntl.h>	136	#include <fcntl.h>
…		…
136	# ifndef EV_SELECT_IS_WINSOCKET	161	# ifndef EV_SELECT_IS_WINSOCKET
137	# define EV_SELECT_IS_WINSOCKET 1	162	# define EV_SELECT_IS_WINSOCKET 1
138	# endif	163	# endif
139	#endif	164	#endif
140		165
141	/**/	166	/* this block tries to deduce configuration from header-defined symbols and defaults */
142		167
143	#ifndef EV_USE_MONOTONIC	168	#ifndef EV_USE_MONOTONIC
144	# define EV_USE_MONOTONIC 0	169	# define EV_USE_MONOTONIC 0
145	#endif	170	#endif
146		171
147	#ifndef EV_USE_REALTIME	172	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	173	# define EV_USE_REALTIME 0
		174	#endif
		175
		176	#ifndef EV_USE_NANOSLEEP
		177	# define EV_USE_NANOSLEEP 0
149	#endif	178	#endif
150		179
151	#ifndef EV_USE_SELECT	180	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	181	# define EV_USE_SELECT 1
153	#endif	182	#endif
…		…
159	# define EV_USE_POLL 1	188	# define EV_USE_POLL 1
160	# endif	189	# endif
161	#endif	190	#endif
162		191
163	#ifndef EV_USE_EPOLL	192	#ifndef EV_USE_EPOLL
		193	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		194	# define EV_USE_EPOLL 1
		195	# else
164	# define EV_USE_EPOLL 0	196	# define EV_USE_EPOLL 0
		197	# endif
165	#endif	198	#endif
166		199
167	#ifndef EV_USE_KQUEUE	200	#ifndef EV_USE_KQUEUE
168	# define EV_USE_KQUEUE 0	201	# define EV_USE_KQUEUE 0
169	#endif	202	#endif
…		…
171	#ifndef EV_USE_PORT	204	#ifndef EV_USE_PORT
172	# define EV_USE_PORT 0	205	# define EV_USE_PORT 0
173	#endif	206	#endif
174		207
175	#ifndef EV_USE_INOTIFY	208	#ifndef EV_USE_INOTIFY
		209	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		210	# define EV_USE_INOTIFY 1
		211	# else
176	# define EV_USE_INOTIFY 0	212	# define EV_USE_INOTIFY 0
		213	# endif
177	#endif	214	#endif
178		215
179	#ifndef EV_PID_HASHSIZE	216	#ifndef EV_PID_HASHSIZE
180	# if EV_MINIMAL	217	# if EV_MINIMAL
181	# define EV_PID_HASHSIZE 1	218	# define EV_PID_HASHSIZE 1
…		…
190	# else	227	# else
191	# define EV_INOTIFY_HASHSIZE 16	228	# define EV_INOTIFY_HASHSIZE 16
192	# endif	229	# endif
193	#endif	230	#endif
194		231
195	/**/	232	#ifndef EV_USE_EVENTFD
		233	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		234	# define EV_USE_EVENTFD 1
		235	# else
		236	# define EV_USE_EVENTFD 0
		237	# endif
		238	#endif
		239
		240	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		241
197	#ifndef CLOCK_MONOTONIC	242	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	243	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	244	# define EV_USE_MONOTONIC 0
200	#endif	245	#endif
…		…
202	#ifndef CLOCK_REALTIME	247	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	248	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	249	# define EV_USE_REALTIME 0
205	#endif	250	#endif
206		251
		252	#if !EV_STAT_ENABLE
		253	# undef EV_USE_INOTIFY
		254	# define EV_USE_INOTIFY 0
		255	#endif
		256
		257	#if !EV_USE_NANOSLEEP
		258	# ifndef _WIN32
		259	# include <sys/select.h>
		260	# endif
		261	#endif
		262
		263	#if EV_USE_INOTIFY
		264	# include <sys/inotify.h>
		265	#endif
		266
207	#if EV_SELECT_IS_WINSOCKET	267	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	268	# include <winsock.h>
209	#endif	269	#endif
210		270
211	#if !EV_STAT_ENABLE	271	#if EV_USE_EVENTFD
212	# define EV_USE_INOTIFY 0	272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		273	# include <stdint.h>
		274	# ifdef __cplusplus
		275	extern "C" {
213	#endif	276	# endif
214		277	int eventfd (unsigned int initval, int flags);
215	#if EV_USE_INOTIFY	278	# ifdef __cplusplus
216	# include <sys/inotify.h>	279	}
		280	# endif
217	#endif	281	#endif
218		282
219	/**/	283	/**/
		284
		285	/*
		286	* This is used to avoid floating point rounding problems.
		287	* It is added to ev_rt_now when scheduling periodics
		288	* to ensure progress, time-wise, even when rounding
		289	* errors are against us.
		290	* This value is good at least till the year 4000.
		291	* Better solutions welcome.
		292	*/
		293	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		294
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	295	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
222	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	296	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	297	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
224		298
225	#if __GNUC__ >= 3	299	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	300	# define expect(expr,value) __builtin_expect ((expr),(value))
227	# define inline_size static inline /* inline for codesize */
228	# if EV_MINIMAL
229	# define noinline __attribute__ ((noinline))	301	# define noinline __attribute__ ((noinline))
230	# define inline_speed static noinline
231	# else
232	# define noinline
233	# define inline_speed static inline
234	# endif
235	#else	302	#else
236	# define expect(expr,value) (expr)	303	# define expect(expr,value) (expr)
237	# define inline_speed static
238	# define inline_size static
239	# define noinline	304	# define noinline
		305	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
		306	# define inline
		307	# endif
240	#endif	308	#endif
241		309
242	#define expect_false(expr) expect ((expr) != 0, 0)	310	#define expect_false(expr) expect ((expr) != 0, 0)
243	#define expect_true(expr) expect ((expr) != 0, 1)	311	#define expect_true(expr) expect ((expr) != 0, 1)
		312	#define inline_size static inline
		313
		314	#if EV_MINIMAL
		315	# define inline_speed static noinline
		316	#else
		317	# define inline_speed static inline
		318	#endif
244		319
245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	320	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	321	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247		322
248	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	323	#define EMPTY /* required for microsofts broken pseudo-c compiler */
249	#define EMPTY2(a,b) /* used to suppress some warnings */	324	#define EMPTY2(a,b) /* used to suppress some warnings */
250		325
251	typedef ev_watcher *W;	326	typedef ev_watcher *W;
252	typedef ev_watcher_list *WL;	327	typedef ev_watcher_list *WL;
253	typedef ev_watcher_time *WT;	328	typedef ev_watcher_time *WT;
254		329
		330	#define ev_at(w) ((WT)(w))->at
		331
		332	#if EV_USE_MONOTONIC
		333	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		334	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	335	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		336	#endif
256		337
257	#ifdef _WIN32	338	#ifdef _WIN32
258	# include "ev_win32.c"	339	# include "ev_win32.c"
259	#endif	340	#endif
260		341
…		…
281	perror (msg);	362	perror (msg);
282	abort ();	363	abort ();
283	}	364	}
284	}	365	}
285		366
		367	static void *
		368	ev_realloc_emul (void *ptr, long size)
		369	{
		370	/* some systems, notably openbsd and darwin, fail to properly
		371	* implement realloc (x, 0) (as required by both ansi c-98 and
		372	* the single unix specification, so work around them here.
		373	*/
		374
		375	if (size)
		376	return realloc (ptr, size);
		377
		378	free (ptr);
		379	return 0;
		380	}
		381
286	static void *(*alloc)(void *ptr, long size);	382	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
287		383
288	void	384	void
289	ev_set_allocator (void *(*cb)(void *ptr, long size))	385	ev_set_allocator (void *(*cb)(void *ptr, long size))
290	{	386	{
291	alloc = cb;	387	alloc = cb;
292	}	388	}
293		389
294	inline_speed void *	390	inline_speed void *
295	ev_realloc (void *ptr, long size)	391	ev_realloc (void *ptr, long size)
296	{	392	{
297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	393	ptr = alloc (ptr, size);
298		394
299	if (!ptr && size)	395	if (!ptr && size)
300	{	396	{
301	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	397	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
302	abort ();	398	abort ();
…		…
396	{	492	{
397	return ev_rt_now;	493	return ev_rt_now;
398	}	494	}
399	#endif	495	#endif
400		496
401	#define array_roundsize(type,n) (((n) | 4) & ~3)	497	void
		498	ev_sleep (ev_tstamp delay)
		499	{
		500	if (delay > 0.)
		501	{
		502	#if EV_USE_NANOSLEEP
		503	struct timespec ts;
		504
		505	ts.tv_sec = (time_t)delay;
		506	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		507
		508	nanosleep (&ts, 0);
		509	#elif defined(_WIN32)
		510	Sleep ((unsigned long)(delay * 1e3));
		511	#else
		512	struct timeval tv;
		513
		514	tv.tv_sec = (time_t)delay;
		515	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		516
		517	select (0, 0, 0, 0, &tv);
		518	#endif
		519	}
		520	}
		521
		522	/*****************************************************************************/
		523
		524	int inline_size
		525	array_nextsize (int elem, int cur, int cnt)
		526	{
		527	int ncur = cur + 1;
		528
		529	do
		530	ncur <<= 1;
		531	while (cnt > ncur);
		532
		533	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		534	if (elem * ncur > 4096)
		535	{
		536	ncur *= elem;
		537	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		538	ncur = ncur - sizeof (void *) * 4;
		539	ncur /= elem;
		540	}
		541
		542	return ncur;
		543	}
		544
		545	static noinline void *
		546	array_realloc (int elem, void *base, int *cur, int cnt)
		547	{
		548	*cur = array_nextsize (elem, *cur, cnt);
		549	return ev_realloc (base, elem * *cur);
		550	}
402		551
403	#define array_needsize(type,base,cur,cnt,init) \	552	#define array_needsize(type,base,cur,cnt,init) \
404	if (expect_false ((cnt) > cur)) \	553	if (expect_false ((cnt) > (cur))) \
405	{ \	554	{ \
406	int newcnt = cur; \	555	int ocur_ = (cur); \
407	do \	556	(base) = (type *)array_realloc \
408	{ \	557	(sizeof (type), (base), &(cur), (cnt)); \
409	newcnt = array_roundsize (type, newcnt << 1); \	558	init ((base) + (ocur_), (cur) - ocur_); \
410	} \
411	while ((cnt) > newcnt); \
412	\
413	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
414	init (base + cur, newcnt - cur); \
415	cur = newcnt; \
416	}	559	}
417		560
		561	#if 0
418	#define array_slim(type,stem) \	562	#define array_slim(type,stem) \
419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	563	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420	{ \	564	{ \
421	stem ## max = array_roundsize (stem ## cnt >> 1); \	565	stem ## max = array_roundsize (stem ## cnt >> 1); \
422	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	566	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	567	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
424	}	568	}
		569	#endif
425		570
426	#define array_free(stem, idx) \	571	#define array_free(stem, idx) \
427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	572	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428		573
429	/*****************************************************************************/	574	/*****************************************************************************/
430		575
431	void noinline	576	void noinline
432	ev_feed_event (EV_P_ void *w, int revents)	577	ev_feed_event (EV_P_ void *w, int revents)
433	{	578	{
434	W w_ = (W)w;	579	W w_ = (W)w;
		580	int pri = ABSPRI (w_);
435		581
436	if (expect_false (w_->pending))	582	if (expect_false (w_->pending))
		583	pendings [pri][w_->pending - 1].events |= revents;
		584	else
437	{	585	{
		586	w_->pending = ++pendingcnt [pri];
		587	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		588	pendings [pri][w_->pending - 1].w = w_;
438	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	589	pendings [pri][w_->pending - 1].events = revents;
439	return;
440	}	590	}
441
442	w_->pending = ++pendingcnt [ABSPRI (w_)];
443	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
444	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
445	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
446	}	591	}
447		592
448	void inline_size	593	void inline_speed
449	queue_events (EV_P_ W *events, int eventcnt, int type)	594	queue_events (EV_P_ W *events, int eventcnt, int type)
450	{	595	{
451	int i;	596	int i;
452		597
453	for (i = 0; i < eventcnt; ++i)	598	for (i = 0; i < eventcnt; ++i)
…		…
485	}	630	}
486		631
487	void	632	void
488	ev_feed_fd_event (EV_P_ int fd, int revents)	633	ev_feed_fd_event (EV_P_ int fd, int revents)
489	{	634	{
		635	if (fd >= 0 && fd < anfdmax)
490	fd_event (EV_A_ fd, revents);	636	fd_event (EV_A_ fd, revents);
491	}	637	}
492		638
493	void inline_size	639	void inline_size
494	fd_reify (EV_P)	640	fd_reify (EV_P)
495	{	641	{
…		…
499	{	645	{
500	int fd = fdchanges [i];	646	int fd = fdchanges [i];
501	ANFD *anfd = anfds + fd;	647	ANFD *anfd = anfds + fd;
502	ev_io *w;	648	ev_io *w;
503		649
504	int events = 0;	650	unsigned char events = 0;
505		651
506	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	652	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
507	events |= w->events;	653	events |= (unsigned char)w->events;
508		654
509	#if EV_SELECT_IS_WINSOCKET	655	#if EV_SELECT_IS_WINSOCKET
510	if (events)	656	if (events)
511	{	657	{
512	unsigned long argp;	658	unsigned long argp;
		659	#ifdef EV_FD_TO_WIN32_HANDLE
		660	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		661	#else
513	anfd->handle = _get_osfhandle (fd);	662	anfd->handle = _get_osfhandle (fd);
		663	#endif
514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	664	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515	}	665	}
516	#endif	666	#endif
517		667
		668	{
		669	unsigned char o_events = anfd->events;
		670	unsigned char o_reify = anfd->reify;
		671
518	anfd->reify = 0;	672	anfd->reify = 0;
519
520	backend_modify (EV_A_ fd, anfd->events, events);
521	anfd->events = events;	673	anfd->events = events;
		674
		675	if (o_events != events || o_reify & EV_IOFDSET)
		676	backend_modify (EV_A_ fd, o_events, events);
		677	}
522	}	678	}
523		679
524	fdchangecnt = 0;	680	fdchangecnt = 0;
525	}	681	}
526		682
527	void inline_size	683	void inline_size
528	fd_change (EV_P_ int fd)	684	fd_change (EV_P_ int fd, int flags)
529	{	685	{
530	if (expect_false (anfds [fd].reify))	686	unsigned char reify = anfds [fd].reify;
531	return;
532
533	anfds [fd].reify = 1;	687	anfds [fd].reify |= flags;
534		688
		689	if (expect_true (!reify))
		690	{
535	++fdchangecnt;	691	++fdchangecnt;
536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	692	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537	fdchanges [fdchangecnt - 1] = fd;	693	fdchanges [fdchangecnt - 1] = fd;
		694	}
538	}	695	}
539		696
540	void inline_speed	697	void inline_speed
541	fd_kill (EV_P_ int fd)	698	fd_kill (EV_P_ int fd)
542	{	699	{
…		…
589	static void noinline	746	static void noinline
590	fd_rearm_all (EV_P)	747	fd_rearm_all (EV_P)
591	{	748	{
592	int fd;	749	int fd;
593		750
594	/* this should be highly optimised to not do anything but set a flag */
595	for (fd = 0; fd < anfdmax; ++fd)	751	for (fd = 0; fd < anfdmax; ++fd)
596	if (anfds [fd].events)	752	if (anfds [fd].events)
597	{	753	{
598	anfds [fd].events = 0;	754	anfds [fd].events = 0;
599	fd_change (EV_A_ fd);	755	fd_change (EV_A_ fd, EV_IOFDSET | 1);
600	}	756	}
601	}	757	}
602		758
603	/*****************************************************************************/	759	/*****************************************************************************/
604		760
		761	/* towards the root */
605	void inline_speed	762	void inline_speed
606	upheap (WT *heap, int k)	763	upheap (WT *heap, int k)
607	{	764	{
608	WT w = heap [k];	765	WT w = heap [k];
609		766
610	while (k && heap [k >> 1]->at > w->at)	767	for (;;)
611	{	768	{
		769	int p = k >> 1;
		770
		771	/* maybe we could use a dummy element at heap [0]? */
		772	if (!p || heap [p]->at <= w->at)
		773	break;
		774
612	heap [k] = heap [k >> 1];	775	heap [k] = heap [p];
613	((W)heap [k])->active = k + 1;	776	((W)heap [k])->active = k;
614	k >>= 1;	777	k = p;
615	}	778	}
616		779
617	heap [k] = w;	780	heap [k] = w;
618	((W)heap [k])->active = k + 1;	781	((W)heap [k])->active = k;
619
620	}	782	}
621		783
		784	/* away from the root */
622	void inline_speed	785	void inline_speed
623	downheap (WT *heap, int N, int k)	786	downheap (WT *heap, int N, int k)
624	{	787	{
625	WT w = heap [k];	788	WT w = heap [k];
626		789
627	while (k < (N >> 1))	790	for (;;)
628	{	791	{
629	int j = k << 1;	792	int c = k << 1;
630		793
631	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	794	if (c > N)
632	++j;
633
634	if (w->at <= heap [j]->at)
635	break;	795	break;
636		796
		797	c += c < N && heap [c]->at > heap [c + 1]->at
		798	? 1 : 0;
		799
		800	if (w->at <= heap [c]->at)
		801	break;
		802
637	heap [k] = heap [j];	803	heap [k] = heap [c];
638	((W)heap [k])->active = k + 1;	804	((W)heap [k])->active = k;
		805
639	k = j;	806	k = c;
640	}	807	}
641		808
642	heap [k] = w;	809	heap [k] = w;
643	((W)heap [k])->active = k + 1;	810	((W)heap [k])->active = k;
644	}	811	}
645		812
646	void inline_size	813	void inline_size
647	adjustheap (WT *heap, int N, int k)	814	adjustheap (WT *heap, int N, int k)
648	{	815	{
…		…
653	/*****************************************************************************/	820	/*****************************************************************************/
654		821
655	typedef struct	822	typedef struct
656	{	823	{
657	WL head;	824	WL head;
658	sig_atomic_t volatile gotsig;	825	EV_ATOMIC_T gotsig;
659	} ANSIG;	826	} ANSIG;
660		827
661	static ANSIG *signals;	828	static ANSIG *signals;
662	static int signalmax;	829	static int signalmax;
663		830
664	static int sigpipe [2];	831	static EV_ATOMIC_T gotsig;
665	static sig_atomic_t volatile gotsig;
666	static ev_io sigev;
667		832
668	void inline_size	833	void inline_size
669	signals_init (ANSIG *base, int count)	834	signals_init (ANSIG *base, int count)
670	{	835	{
671	while (count--)	836	while (count--)
…		…
675		840
676	++base;	841	++base;
677	}	842	}
678	}	843	}
679		844
680	static void	845	/*****************************************************************************/
681	sighandler (int signum)
682	{
683	#if _WIN32
684	signal (signum, sighandler);
685	#endif
686		846
687	signals [signum - 1].gotsig = 1;
688
689	if (!gotsig)
690	{
691	int old_errno = errno;
692	gotsig = 1;
693	write (sigpipe [1], &signum, 1);
694	errno = old_errno;
695	}
696	}
697
698	void noinline
699	ev_feed_signal_event (EV_P_ int signum)
700	{
701	WL w;
702
703	#if EV_MULTIPLICITY
704	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
705	#endif
706
707	--signum;
708
709	if (signum < 0 || signum >= signalmax)
710	return;
711
712	signals [signum].gotsig = 0;
713
714	for (w = signals [signum].head; w; w = w->next)
715	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
716	}
717
718	static void
719	sigcb (EV_P_ ev_io *iow, int revents)
720	{
721	int signum;
722
723	read (sigpipe [0], &revents, 1);
724	gotsig = 0;
725
726	for (signum = signalmax; signum--; )
727	if (signals [signum].gotsig)
728	ev_feed_signal_event (EV_A_ signum + 1);
729	}
730
731	void inline_size	847	void inline_speed
732	fd_intern (int fd)	848	fd_intern (int fd)
733	{	849	{
734	#ifdef _WIN32	850	#ifdef _WIN32
735	int arg = 1;	851	int arg = 1;
736	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	852	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
739	fcntl (fd, F_SETFL, O_NONBLOCK);	855	fcntl (fd, F_SETFL, O_NONBLOCK);
740	#endif	856	#endif
741	}	857	}
742		858
743	static void noinline	859	static void noinline
744	siginit (EV_P)	860	evpipe_init (EV_P)
745	{	861	{
		862	if (!ev_is_active (&pipeev))
		863	{
		864	#if EV_USE_EVENTFD
		865	if ((evfd = eventfd (0, 0)) >= 0)
		866	{
		867	evpipe [0] = -1;
		868	fd_intern (evfd);
		869	ev_io_set (&pipeev, evfd, EV_READ);
		870	}
		871	else
		872	#endif
		873	{
		874	while (pipe (evpipe))
		875	syserr ("(libev) error creating signal/async pipe");
		876
746	fd_intern (sigpipe [0]);	877	fd_intern (evpipe [0]);
747	fd_intern (sigpipe [1]);	878	fd_intern (evpipe [1]);
		879	ev_io_set (&pipeev, evpipe [0], EV_READ);
		880	}
748		881
749	ev_io_set (&sigev, sigpipe [0], EV_READ);
750	ev_io_start (EV_A_ &sigev);	882	ev_io_start (EV_A_ &pipeev);
751	ev_unref (EV_A); /* child watcher should not keep loop alive */	883	ev_unref (EV_A); /* watcher should not keep loop alive */
		884	}
		885	}
		886
		887	void inline_size
		888	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		889	{
		890	if (!*flag)
		891	{
		892	int old_errno = errno; /* save errno because write might clobber it */
		893
		894	*flag = 1;
		895
		896	#if EV_USE_EVENTFD
		897	if (evfd >= 0)
		898	{
		899	uint64_t counter = 1;
		900	write (evfd, &counter, sizeof (uint64_t));
		901	}
		902	else
		903	#endif
		904	write (evpipe [1], &old_errno, 1);
		905
		906	errno = old_errno;
		907	}
		908	}
		909
		910	static void
		911	pipecb (EV_P_ ev_io *iow, int revents)
		912	{
		913	#if EV_USE_EVENTFD
		914	if (evfd >= 0)
		915	{
		916	uint64_t counter = 1;
		917	read (evfd, &counter, sizeof (uint64_t));
		918	}
		919	else
		920	#endif
		921	{
		922	char dummy;
		923	read (evpipe [0], &dummy, 1);
		924	}
		925
		926	if (gotsig && ev_is_default_loop (EV_A))
		927	{
		928	int signum;
		929	gotsig = 0;
		930
		931	for (signum = signalmax; signum--; )
		932	if (signals [signum].gotsig)
		933	ev_feed_signal_event (EV_A_ signum + 1);
		934	}
		935
		936	#if EV_ASYNC_ENABLE
		937	if (gotasync)
		938	{
		939	int i;
		940	gotasync = 0;
		941
		942	for (i = asynccnt; i--; )
		943	if (asyncs [i]->sent)
		944	{
		945	asyncs [i]->sent = 0;
		946	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		947	}
		948	}
		949	#endif
752	}	950	}
753		951
754	/*****************************************************************************/	952	/*****************************************************************************/
755		953
		954	static void
		955	ev_sighandler (int signum)
		956	{
		957	#if EV_MULTIPLICITY
		958	struct ev_loop *loop = &default_loop_struct;
		959	#endif
		960
		961	#if _WIN32
		962	signal (signum, ev_sighandler);
		963	#endif
		964
		965	signals [signum - 1].gotsig = 1;
		966	evpipe_write (EV_A_ &gotsig);
		967	}
		968
		969	void noinline
		970	ev_feed_signal_event (EV_P_ int signum)
		971	{
		972	WL w;
		973
		974	#if EV_MULTIPLICITY
		975	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		976	#endif
		977
		978	--signum;
		979
		980	if (signum < 0 || signum >= signalmax)
		981	return;
		982
		983	signals [signum].gotsig = 0;
		984
		985	for (w = signals [signum].head; w; w = w->next)
		986	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		987	}
		988
		989	/*****************************************************************************/
		990
756	static ev_child *childs [EV_PID_HASHSIZE];	991	static WL childs [EV_PID_HASHSIZE];
757		992
758	#ifndef _WIN32	993	#ifndef _WIN32
759		994
760	static ev_signal childev;	995	static ev_signal childev;
761		996
		997	#ifndef WIFCONTINUED
		998	# define WIFCONTINUED(status) 0
		999	#endif
		1000
762	void inline_speed	1001	void inline_speed
763	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1002	child_reap (EV_P_ int chain, int pid, int status)
764	{	1003	{
765	ev_child *w;	1004	ev_child *w;
		1005	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
766		1006
767	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1007	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1008	{
768	if (w->pid == pid || !w->pid)	1009	if ((w->pid == pid || !w->pid)
		1010	&& (!traced || (w->flags & 1)))
769	{	1011	{
770	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	1012	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
771	w->rpid = pid;	1013	w->rpid = pid;
772	w->rstatus = status;	1014	w->rstatus = status;
773	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1015	ev_feed_event (EV_A_ (W)w, EV_CHILD);
774	}	1016	}
		1017	}
775	}	1018	}
776		1019
777	#ifndef WCONTINUED	1020	#ifndef WCONTINUED
778	# define WCONTINUED 0	1021	# define WCONTINUED 0
779	#endif	1022	#endif
…		…
788	if (!WCONTINUED	1031	if (!WCONTINUED
789	|| errno != EINVAL	1032	|| errno != EINVAL
790	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1033	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
791	return;	1034	return;
792		1035
793	/* make sure we are called again until all childs have been reaped */	1036	/* make sure we are called again until all children have been reaped */
794	/* we need to do it this way so that the callback gets called before we continue */	1037	/* we need to do it this way so that the callback gets called before we continue */
795	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1038	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
796		1039
797	child_reap (EV_A_ sw, pid, pid, status);	1040	child_reap (EV_A_ pid, pid, status);
798	if (EV_PID_HASHSIZE > 1)	1041	if (EV_PID_HASHSIZE > 1)
799	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1042	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
800	}	1043	}
801		1044
802	#endif	1045	#endif
803		1046
804	/*****************************************************************************/	1047	/*****************************************************************************/
…		…
876	}	1119	}
877		1120
878	unsigned int	1121	unsigned int
879	ev_embeddable_backends (void)	1122	ev_embeddable_backends (void)
880	{	1123	{
881	return EVBACKEND_EPOLL	1124	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
882	| EVBACKEND_KQUEUE	1125
883	| EVBACKEND_PORT;	1126	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1127	/* please fix it and tell me how to detect the fix */
		1128	flags &= ~EVBACKEND_EPOLL;
		1129
		1130	return flags;
884	}	1131	}
885		1132
886	unsigned int	1133	unsigned int
887	ev_backend (EV_P)	1134	ev_backend (EV_P)
888	{	1135	{
889	return backend;	1136	return backend;
		1137	}
		1138
		1139	unsigned int
		1140	ev_loop_count (EV_P)
		1141	{
		1142	return loop_count;
		1143	}
		1144
		1145	void
		1146	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1147	{
		1148	io_blocktime = interval;
		1149	}
		1150
		1151	void
		1152	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1153	{
		1154	timeout_blocktime = interval;
890	}	1155	}
891		1156
892	static void noinline	1157	static void noinline
893	loop_init (EV_P_ unsigned int flags)	1158	loop_init (EV_P_ unsigned int flags)
894	{	1159	{
…		…
900	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1165	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
901	have_monotonic = 1;	1166	have_monotonic = 1;
902	}	1167	}
903	#endif	1168	#endif
904		1169
905	ev_rt_now = ev_time ();	1170	ev_rt_now = ev_time ();
906	mn_now = get_clock ();	1171	mn_now = get_clock ();
907	now_floor = mn_now;	1172	now_floor = mn_now;
908	rtmn_diff = ev_rt_now - mn_now;	1173	rtmn_diff = ev_rt_now - mn_now;
		1174
		1175	io_blocktime = 0.;
		1176	timeout_blocktime = 0.;
		1177	backend = 0;
		1178	backend_fd = -1;
		1179	gotasync = 0;
		1180	#if EV_USE_INOTIFY
		1181	fs_fd = -2;
		1182	#endif
		1183
		1184	/* pid check not overridable via env */
		1185	#ifndef _WIN32
		1186	if (flags & EVFLAG_FORKCHECK)
		1187	curpid = getpid ();
		1188	#endif
909		1189
910	if (!(flags & EVFLAG_NOENV)	1190	if (!(flags & EVFLAG_NOENV)
911	&& !enable_secure ()	1191	&& !enable_secure ()
912	&& getenv ("LIBEV_FLAGS"))	1192	&& getenv ("LIBEV_FLAGS"))
913	flags = atoi (getenv ("LIBEV_FLAGS"));	1193	flags = atoi (getenv ("LIBEV_FLAGS"));
914		1194
915	if (!(flags & 0x0000ffffUL))	1195	if (!(flags & 0x0000ffffU))
916	flags |= ev_recommended_backends ();	1196	flags |= ev_recommended_backends ();
917
918	backend = 0;
919	backend_fd = -1;
920	#if EV_USE_INOTIFY
921	fs_fd = -2;
922	#endif
923		1197
924	#if EV_USE_PORT	1198	#if EV_USE_PORT
925	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1199	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
926	#endif	1200	#endif
927	#if EV_USE_KQUEUE	1201	#if EV_USE_KQUEUE
…		…
935	#endif	1209	#endif
936	#if EV_USE_SELECT	1210	#if EV_USE_SELECT
937	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1211	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
938	#endif	1212	#endif
939		1213
940	ev_init (&sigev, sigcb);	1214	ev_init (&pipeev, pipecb);
941	ev_set_priority (&sigev, EV_MAXPRI);	1215	ev_set_priority (&pipeev, EV_MAXPRI);
942	}	1216	}
943	}	1217	}
944		1218
945	static void noinline	1219	static void noinline
946	loop_destroy (EV_P)	1220	loop_destroy (EV_P)
947	{	1221	{
948	int i;	1222	int i;
		1223
		1224	if (ev_is_active (&pipeev))
		1225	{
		1226	ev_ref (EV_A); /* signal watcher */
		1227	ev_io_stop (EV_A_ &pipeev);
		1228
		1229	#if EV_USE_EVENTFD
		1230	if (evfd >= 0)
		1231	close (evfd);
		1232	#endif
		1233
		1234	if (evpipe [0] >= 0)
		1235	{
		1236	close (evpipe [0]);
		1237	close (evpipe [1]);
		1238	}
		1239	}
949		1240
950	#if EV_USE_INOTIFY	1241	#if EV_USE_INOTIFY
951	if (fs_fd >= 0)	1242	if (fs_fd >= 0)
952	close (fs_fd);	1243	close (fs_fd);
953	#endif	1244	#endif
…		…
970	#if EV_USE_SELECT	1261	#if EV_USE_SELECT
971	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1262	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
972	#endif	1263	#endif
973		1264
974	for (i = NUMPRI; i--; )	1265	for (i = NUMPRI; i--; )
		1266	{
975	array_free (pending, [i]);	1267	array_free (pending, [i]);
		1268	#if EV_IDLE_ENABLE
		1269	array_free (idle, [i]);
		1270	#endif
		1271	}
		1272
		1273	ev_free (anfds); anfdmax = 0;
976		1274
977	/* have to use the microsoft-never-gets-it-right macro */	1275	/* have to use the microsoft-never-gets-it-right macro */
978	array_free (fdchange, EMPTY0);	1276	array_free (fdchange, EMPTY);
979	array_free (timer, EMPTY0);	1277	array_free (timer, EMPTY);
980	#if EV_PERIODIC_ENABLE	1278	#if EV_PERIODIC_ENABLE
981	array_free (periodic, EMPTY0);	1279	array_free (periodic, EMPTY);
982	#endif	1280	#endif
		1281	#if EV_FORK_ENABLE
983	array_free (idle, EMPTY0);	1282	array_free (fork, EMPTY);
		1283	#endif
984	array_free (prepare, EMPTY0);	1284	array_free (prepare, EMPTY);
985	array_free (check, EMPTY0);	1285	array_free (check, EMPTY);
		1286	#if EV_ASYNC_ENABLE
		1287	array_free (async, EMPTY);
		1288	#endif
986		1289
987	backend = 0;	1290	backend = 0;
988	}	1291	}
989		1292
		1293	#if EV_USE_INOTIFY
990	void inline_size infy_fork (EV_P);	1294	void inline_size infy_fork (EV_P);
		1295	#endif
991		1296
992	void inline_size	1297	void inline_size
993	loop_fork (EV_P)	1298	loop_fork (EV_P)
994	{	1299	{
995	#if EV_USE_PORT	1300	#if EV_USE_PORT
…		…
1003	#endif	1308	#endif
1004	#if EV_USE_INOTIFY	1309	#if EV_USE_INOTIFY
1005	infy_fork (EV_A);	1310	infy_fork (EV_A);
1006	#endif	1311	#endif
1007		1312
1008	if (ev_is_active (&sigev))	1313	if (ev_is_active (&pipeev))
1009	{	1314	{
1010	/* default loop */	1315	/* this "locks" the handlers against writing to the pipe */
		1316	/* while we modify the fd vars */
		1317	gotsig = 1;
		1318	#if EV_ASYNC_ENABLE
		1319	gotasync = 1;
		1320	#endif
1011		1321
1012	ev_ref (EV_A);	1322	ev_ref (EV_A);
1013	ev_io_stop (EV_A_ &sigev);	1323	ev_io_stop (EV_A_ &pipeev);
		1324
		1325	#if EV_USE_EVENTFD
		1326	if (evfd >= 0)
		1327	close (evfd);
		1328	#endif
		1329
		1330	if (evpipe [0] >= 0)
		1331	{
1014	close (sigpipe [0]);	1332	close (evpipe [0]);
1015	close (sigpipe [1]);	1333	close (evpipe [1]);
		1334	}
1016		1335
1017	while (pipe (sigpipe))
1018	syserr ("(libev) error creating pipe");
1019
1020	siginit (EV_A);	1336	evpipe_init (EV_A);
		1337	/* now iterate over everything, in case we missed something */
		1338	pipecb (EV_A_ &pipeev, EV_READ);
1021	}	1339	}
1022		1340
1023	postfork = 0;	1341	postfork = 0;
1024	}	1342	}
1025		1343
…		…
1047	}	1365	}
1048		1366
1049	void	1367	void
1050	ev_loop_fork (EV_P)	1368	ev_loop_fork (EV_P)
1051	{	1369	{
1052	postfork = 1;	1370	postfork = 1; /* must be in line with ev_default_fork */
1053	}	1371	}
1054		1372
1055	#endif	1373	#endif
1056		1374
1057	#if EV_MULTIPLICITY	1375	#if EV_MULTIPLICITY
…		…
1060	#else	1378	#else
1061	int	1379	int
1062	ev_default_loop (unsigned int flags)	1380	ev_default_loop (unsigned int flags)
1063	#endif	1381	#endif
1064	{	1382	{
1065	if (sigpipe [0] == sigpipe [1])
1066	if (pipe (sigpipe))
1067	return 0;
1068
1069	if (!ev_default_loop_ptr)	1383	if (!ev_default_loop_ptr)
1070	{	1384	{
1071	#if EV_MULTIPLICITY	1385	#if EV_MULTIPLICITY
1072	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1386	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1073	#else	1387	#else
…		…
1076		1390
1077	loop_init (EV_A_ flags);	1391	loop_init (EV_A_ flags);
1078		1392
1079	if (ev_backend (EV_A))	1393	if (ev_backend (EV_A))
1080	{	1394	{
1081	siginit (EV_A);
1082
1083	#ifndef _WIN32	1395	#ifndef _WIN32
1084	ev_signal_init (&childev, childcb, SIGCHLD);	1396	ev_signal_init (&childev, childcb, SIGCHLD);
1085	ev_set_priority (&childev, EV_MAXPRI);	1397	ev_set_priority (&childev, EV_MAXPRI);
1086	ev_signal_start (EV_A_ &childev);	1398	ev_signal_start (EV_A_ &childev);
1087	ev_unref (EV_A); /* child watcher should not keep loop alive */	1399	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1104	#ifndef _WIN32	1416	#ifndef _WIN32
1105	ev_ref (EV_A); /* child watcher */	1417	ev_ref (EV_A); /* child watcher */
1106	ev_signal_stop (EV_A_ &childev);	1418	ev_signal_stop (EV_A_ &childev);
1107	#endif	1419	#endif
1108		1420
1109	ev_ref (EV_A); /* signal watcher */
1110	ev_io_stop (EV_A_ &sigev);
1111
1112	close (sigpipe [0]); sigpipe [0] = 0;
1113	close (sigpipe [1]); sigpipe [1] = 0;
1114
1115	loop_destroy (EV_A);	1421	loop_destroy (EV_A);
1116	}	1422	}
1117		1423
1118	void	1424	void
1119	ev_default_fork (void)	1425	ev_default_fork (void)
…		…
1121	#if EV_MULTIPLICITY	1427	#if EV_MULTIPLICITY
1122	struct ev_loop *loop = ev_default_loop_ptr;	1428	struct ev_loop *loop = ev_default_loop_ptr;
1123	#endif	1429	#endif
1124		1430
1125	if (backend)	1431	if (backend)
1126	postfork = 1;	1432	postfork = 1; /* must be in line with ev_loop_fork */
1127	}	1433	}
1128		1434
1129	/*****************************************************************************/	1435	/*****************************************************************************/
1130		1436
1131	int inline_size	1437	void
1132	any_pending (EV_P)	1438	ev_invoke (EV_P_ void *w, int revents)
1133	{	1439	{
1134	int pri;	1440	EV_CB_INVOKE ((W)w, revents);
1135
1136	for (pri = NUMPRI; pri--; )
1137	if (pendingcnt [pri])
1138	return 1;
1139
1140	return 0;
1141	}	1441	}
1142		1442
1143	void inline_speed	1443	void inline_speed
1144	call_pending (EV_P)	1444	call_pending (EV_P)
1145	{	1445	{
…		…
1161	}	1461	}
1162		1462
1163	void inline_size	1463	void inline_size
1164	timers_reify (EV_P)	1464	timers_reify (EV_P)
1165	{	1465	{
1166	while (timercnt && ((WT)timers [0])->at <= mn_now)	1466	while (timercnt && ev_at (timers [1]) <= mn_now)
1167	{	1467	{
1168	ev_timer *w = timers [0];	1468	ev_timer *w = (ev_timer *)timers [1];
1169		1469
1170	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1470	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1171		1471
1172	/* first reschedule or stop timer */	1472	/* first reschedule or stop timer */
1173	if (w->repeat)	1473	if (w->repeat)
1174	{	1474	{
1175	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1475	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1176		1476
1177	((WT)w)->at += w->repeat;	1477	ev_at (w) += w->repeat;
1178	if (((WT)w)->at < mn_now)	1478	if (ev_at (w) < mn_now)
1179	((WT)w)->at = mn_now;	1479	ev_at (w) = mn_now;
1180		1480
1181	downheap ((WT *)timers, timercnt, 0);	1481	downheap (timers, timercnt, 1);
1182	}	1482	}
1183	else	1483	else
1184	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1484	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1185		1485
1186	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1486	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1189		1489
1190	#if EV_PERIODIC_ENABLE	1490	#if EV_PERIODIC_ENABLE
1191	void inline_size	1491	void inline_size
1192	periodics_reify (EV_P)	1492	periodics_reify (EV_P)
1193	{	1493	{
1194	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1494	while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1195	{	1495	{
1196	ev_periodic *w = periodics [0];	1496	ev_periodic *w = (ev_periodic *)periodics [1];
1197		1497
1198	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1498	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1199		1499
1200	/* first reschedule or stop timer */	1500	/* first reschedule or stop timer */
1201	if (w->reschedule_cb)	1501	if (w->reschedule_cb)
1202	{	1502	{
1203	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1503	ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1204	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1504	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1205	downheap ((WT *)periodics, periodiccnt, 0);	1505	downheap (periodics, periodiccnt, 1);
1206	}	1506	}
1207	else if (w->interval)	1507	else if (w->interval)
1208	{	1508	{
1209	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1509	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1510	if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval;
1210	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1511	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now));
1211	downheap ((WT *)periodics, periodiccnt, 0);	1512	downheap (periodics, periodiccnt, 1);
1212	}	1513	}
1213	else	1514	else
1214	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1515	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1215		1516
1216	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1517	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1223	int i;	1524	int i;
1224		1525
1225	/* adjust periodics after time jump */	1526	/* adjust periodics after time jump */
1226	for (i = 0; i < periodiccnt; ++i)	1527	for (i = 0; i < periodiccnt; ++i)
1227	{	1528	{
1228	ev_periodic *w = periodics [i];	1529	ev_periodic *w = (ev_periodic *)periodics [i];
1229		1530
1230	if (w->reschedule_cb)	1531	if (w->reschedule_cb)
1231	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1532	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1232	else if (w->interval)	1533	else if (w->interval)
1233	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1534	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1234	}	1535	}
1235		1536
1236	/* now rebuild the heap */	1537	/* now rebuild the heap */
1237	for (i = periodiccnt >> 1; i--; )	1538	for (i = periodiccnt >> 1; i--; )
1238	downheap ((WT *)periodics, periodiccnt, i);	1539	downheap (periodics, periodiccnt, i);
1239	}	1540	}
1240	#endif	1541	#endif
1241		1542
		1543	#if EV_IDLE_ENABLE
1242	int inline_size	1544	void inline_size
1243	time_update_monotonic (EV_P)	1545	idle_reify (EV_P)
1244	{	1546	{
		1547	if (expect_false (idleall))
		1548	{
		1549	int pri;
		1550
		1551	for (pri = NUMPRI; pri--; )
		1552	{
		1553	if (pendingcnt [pri])
		1554	break;
		1555
		1556	if (idlecnt [pri])
		1557	{
		1558	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1559	break;
		1560	}
		1561	}
		1562	}
		1563	}
		1564	#endif
		1565
		1566	void inline_speed
		1567	time_update (EV_P_ ev_tstamp max_block)
		1568	{
		1569	int i;
		1570
		1571	#if EV_USE_MONOTONIC
		1572	if (expect_true (have_monotonic))
		1573	{
		1574	ev_tstamp odiff = rtmn_diff;
		1575
1245	mn_now = get_clock ();	1576	mn_now = get_clock ();
1246		1577
		1578	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1579	/* interpolate in the meantime */
1247	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1580	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1248	{	1581	{
1249	ev_rt_now = rtmn_diff + mn_now;	1582	ev_rt_now = rtmn_diff + mn_now;
1250	return 0;	1583	return;
1251	}	1584	}
1252	else	1585
1253	{
1254	now_floor = mn_now;	1586	now_floor = mn_now;
1255	ev_rt_now = ev_time ();	1587	ev_rt_now = ev_time ();
1256	return 1;
1257	}
1258	}
1259		1588
1260	void inline_size	1589	/* loop a few times, before making important decisions.
1261	time_update (EV_P)	1590	* on the choice of "4": one iteration isn't enough,
1262	{	1591	* in case we get preempted during the calls to
1263	int i;	1592	* ev_time and get_clock. a second call is almost guaranteed
1264		1593	* to succeed in that case, though. and looping a few more times
1265	#if EV_USE_MONOTONIC	1594	* doesn't hurt either as we only do this on time-jumps or
1266	if (expect_true (have_monotonic))	1595	* in the unlikely event of having been preempted here.
1267	{	1596	*/
1268	if (time_update_monotonic (EV_A))	1597	for (i = 4; --i; )
1269	{	1598	{
1270	ev_tstamp odiff = rtmn_diff;
1271
1272	/* loop a few times, before making important decisions.
1273	* on the choice of "4": one iteration isn't enough,
1274	* in case we get preempted during the calls to
1275	* ev_time and get_clock. a second call is almost guarenteed
1276	* to succeed in that case, though. and looping a few more times
1277	* doesn't hurt either as we only do this on time-jumps or
1278	* in the unlikely event of getting preempted here.
1279	*/
1280	for (i = 4; --i; )
1281	{
1282	rtmn_diff = ev_rt_now - mn_now;	1599	rtmn_diff = ev_rt_now - mn_now;
1283		1600
1284	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1601	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1285	return; /* all is well */	1602	return; /* all is well */
1286		1603
1287	ev_rt_now = ev_time ();	1604	ev_rt_now = ev_time ();
1288	mn_now = get_clock ();	1605	mn_now = get_clock ();
1289	now_floor = mn_now;	1606	now_floor = mn_now;
1290	}	1607	}
1291		1608
1292	# if EV_PERIODIC_ENABLE	1609	# if EV_PERIODIC_ENABLE
1293	periodics_reschedule (EV_A);	1610	periodics_reschedule (EV_A);
1294	# endif	1611	# endif
1295	/* no timer adjustment, as the monotonic clock doesn't jump */	1612	/* no timer adjustment, as the monotonic clock doesn't jump */
1296	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1613	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1297	}
1298	}	1614	}
1299	else	1615	else
1300	#endif	1616	#endif
1301	{	1617	{
1302	ev_rt_now = ev_time ();	1618	ev_rt_now = ev_time ();
1303		1619
1304	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1620	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1305	{	1621	{
1306	#if EV_PERIODIC_ENABLE	1622	#if EV_PERIODIC_ENABLE
1307	periodics_reschedule (EV_A);	1623	periodics_reschedule (EV_A);
1308	#endif	1624	#endif
1309
1310	/* adjust timers. this is easy, as the offset is the same for all */	1625	/* adjust timers. this is easy, as the offset is the same for all of them */
1311	for (i = 0; i < timercnt; ++i)	1626	for (i = 1; i <= timercnt; ++i)
1312	((WT)timers [i])->at += ev_rt_now - mn_now;	1627	ev_at (timers [i]) += ev_rt_now - mn_now;
1313	}	1628	}
1314		1629
1315	mn_now = ev_rt_now;	1630	mn_now = ev_rt_now;
1316	}	1631	}
1317	}	1632	}
…		…
1331	static int loop_done;	1646	static int loop_done;
1332		1647
1333	void	1648	void
1334	ev_loop (EV_P_ int flags)	1649	ev_loop (EV_P_ int flags)
1335	{	1650	{
1336	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1651	loop_done = EVUNLOOP_CANCEL;
1337	? EVUNLOOP_ONE
1338	: EVUNLOOP_CANCEL;
1339		1652
1340	while (activecnt)	1653	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1654
		1655	do
1341	{	1656	{
1342	/* we might have forked, so reify kernel state if necessary */	1657	#ifndef _WIN32
		1658	if (expect_false (curpid)) /* penalise the forking check even more */
		1659	if (expect_false (getpid () != curpid))
		1660	{
		1661	curpid = getpid ();
		1662	postfork = 1;
		1663	}
		1664	#endif
		1665
1343	#if EV_FORK_ENABLE	1666	#if EV_FORK_ENABLE
		1667	/* we might have forked, so queue fork handlers */
1344	if (expect_false (postfork))	1668	if (expect_false (postfork))
1345	if (forkcnt)	1669	if (forkcnt)
1346	{	1670	{
1347	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1671	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1348	call_pending (EV_A);	1672	call_pending (EV_A);
1349	}	1673	}
1350	#endif	1674	#endif
1351		1675
1352	/* queue check watchers (and execute them) */	1676	/* queue prepare watchers (and execute them) */
1353	if (expect_false (preparecnt))	1677	if (expect_false (preparecnt))
1354	{	1678	{
1355	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1679	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1356	call_pending (EV_A);	1680	call_pending (EV_A);
1357	}	1681	}
1358		1682
		1683	if (expect_false (!activecnt))
		1684	break;
		1685
1359	/* we might have forked, so reify kernel state if necessary */	1686	/* we might have forked, so reify kernel state if necessary */
1360	if (expect_false (postfork))	1687	if (expect_false (postfork))
1361	loop_fork (EV_A);	1688	loop_fork (EV_A);
1362		1689
1363	/* update fd-related kernel structures */	1690	/* update fd-related kernel structures */
1364	fd_reify (EV_A);	1691	fd_reify (EV_A);
1365		1692
1366	/* calculate blocking time */	1693	/* calculate blocking time */
1367	{	1694	{
1368	double block;	1695	ev_tstamp waittime = 0.;
		1696	ev_tstamp sleeptime = 0.;
1369		1697
1370	if (flags & EVLOOP_NONBLOCK || idlecnt)	1698	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1371	block = 0.; /* do not block at all */
1372	else
1373	{	1699	{
1374	/* update time to cancel out callback processing overhead */	1700	/* update time to cancel out callback processing overhead */
1375	#if EV_USE_MONOTONIC
1376	if (expect_true (have_monotonic))
1377	time_update_monotonic (EV_A);	1701	time_update (EV_A_ 1e100);
1378	else
1379	#endif
1380	{
1381	ev_rt_now = ev_time ();
1382	mn_now = ev_rt_now;
1383	}
1384		1702
1385	block = MAX_BLOCKTIME;	1703	waittime = MAX_BLOCKTIME;
1386		1704
1387	if (timercnt)	1705	if (timercnt)
1388	{	1706	{
1389	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1707	ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1390	if (block > to) block = to;	1708	if (waittime > to) waittime = to;
1391	}	1709	}
1392		1710
1393	#if EV_PERIODIC_ENABLE	1711	#if EV_PERIODIC_ENABLE
1394	if (periodiccnt)	1712	if (periodiccnt)
1395	{	1713	{
1396	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1714	ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;
1397	if (block > to) block = to;	1715	if (waittime > to) waittime = to;
1398	}	1716	}
1399	#endif	1717	#endif
1400		1718
1401	if (expect_false (block < 0.)) block = 0.;	1719	if (expect_false (waittime < timeout_blocktime))
		1720	waittime = timeout_blocktime;
		1721
		1722	sleeptime = waittime - backend_fudge;
		1723
		1724	if (expect_true (sleeptime > io_blocktime))
		1725	sleeptime = io_blocktime;
		1726
		1727	if (sleeptime)
		1728	{
		1729	ev_sleep (sleeptime);
		1730	waittime -= sleeptime;
		1731	}
1402	}	1732	}
1403		1733
		1734	++loop_count;
1404	backend_poll (EV_A_ block);	1735	backend_poll (EV_A_ waittime);
		1736
		1737	/* update ev_rt_now, do magic */
		1738	time_update (EV_A_ waittime + sleeptime);
1405	}	1739	}
1406
1407	/* update ev_rt_now, do magic */
1408	time_update (EV_A);
1409		1740
1410	/* queue pending timers and reschedule them */	1741	/* queue pending timers and reschedule them */
1411	timers_reify (EV_A); /* relative timers called last */	1742	timers_reify (EV_A); /* relative timers called last */
1412	#if EV_PERIODIC_ENABLE	1743	#if EV_PERIODIC_ENABLE
1413	periodics_reify (EV_A); /* absolute timers called first */	1744	periodics_reify (EV_A); /* absolute timers called first */
1414	#endif	1745	#endif
1415		1746
		1747	#if EV_IDLE_ENABLE
1416	/* queue idle watchers unless other events are pending */	1748	/* queue idle watchers unless other events are pending */
1417	if (idlecnt && !any_pending (EV_A))	1749	idle_reify (EV_A);
1418	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1750	#endif
1419		1751
1420	/* queue check watchers, to be executed first */	1752	/* queue check watchers, to be executed first */
1421	if (expect_false (checkcnt))	1753	if (expect_false (checkcnt))
1422	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1754	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1423		1755
1424	call_pending (EV_A);	1756	call_pending (EV_A);
1425
1426	if (expect_false (loop_done))
1427	break;
1428	}	1757	}
		1758	while (expect_true (
		1759	activecnt
		1760	&& !loop_done
		1761	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1762	));
1429		1763
1430	if (loop_done == EVUNLOOP_ONE)	1764	if (loop_done == EVUNLOOP_ONE)
1431	loop_done = EVUNLOOP_CANCEL;	1765	loop_done = EVUNLOOP_CANCEL;
1432	}	1766	}
1433		1767
…		…
1460	head = &(*head)->next;	1794	head = &(*head)->next;
1461	}	1795	}
1462	}	1796	}
1463		1797
1464	void inline_speed	1798	void inline_speed
1465	ev_clear_pending (EV_P_ W w)	1799	clear_pending (EV_P_ W w)
1466	{	1800	{
1467	if (w->pending)	1801	if (w->pending)
1468	{	1802	{
1469	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1803	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1470	w->pending = 0;	1804	w->pending = 0;
1471	}	1805	}
1472	}	1806	}
1473		1807
		1808	int
		1809	ev_clear_pending (EV_P_ void *w)
		1810	{
		1811	W w_ = (W)w;
		1812	int pending = w_->pending;
		1813
		1814	if (expect_true (pending))
		1815	{
		1816	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1817	w_->pending = 0;
		1818	p->w = 0;
		1819	return p->events;
		1820	}
		1821	else
		1822	return 0;
		1823	}
		1824
		1825	void inline_size
		1826	pri_adjust (EV_P_ W w)
		1827	{
		1828	int pri = w->priority;
		1829	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1830	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1831	w->priority = pri;
		1832	}
		1833
1474	void inline_speed	1834	void inline_speed
1475	ev_start (EV_P_ W w, int active)	1835	ev_start (EV_P_ W w, int active)
1476	{	1836	{
1477	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1837	pri_adjust (EV_A_ w);
1478	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1479
1480	w->active = active;	1838	w->active = active;
1481	ev_ref (EV_A);	1839	ev_ref (EV_A);
1482	}	1840	}
1483		1841
1484	void inline_size	1842	void inline_size
…		…
1488	w->active = 0;	1846	w->active = 0;
1489	}	1847	}
1490		1848
1491	/*****************************************************************************/	1849	/*****************************************************************************/
1492		1850
1493	void	1851	void noinline
1494	ev_io_start (EV_P_ ev_io *w)	1852	ev_io_start (EV_P_ ev_io *w)
1495	{	1853	{
1496	int fd = w->fd;	1854	int fd = w->fd;
1497		1855
1498	if (expect_false (ev_is_active (w)))	1856	if (expect_false (ev_is_active (w)))
…		…
1500		1858
1501	assert (("ev_io_start called with negative fd", fd >= 0));	1859	assert (("ev_io_start called with negative fd", fd >= 0));
1502		1860
1503	ev_start (EV_A_ (W)w, 1);	1861	ev_start (EV_A_ (W)w, 1);
1504	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1862	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1505	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1863	wlist_add (&anfds[fd].head, (WL)w);
1506		1864
1507	fd_change (EV_A_ fd);	1865	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1866	w->events &= ~EV_IOFDSET;
1508	}	1867	}
1509		1868
1510	void	1869	void noinline
1511	ev_io_stop (EV_P_ ev_io *w)	1870	ev_io_stop (EV_P_ ev_io *w)
1512	{	1871	{
1513	ev_clear_pending (EV_A_ (W)w);	1872	clear_pending (EV_A_ (W)w);
1514	if (expect_false (!ev_is_active (w)))	1873	if (expect_false (!ev_is_active (w)))
1515	return;	1874	return;
1516		1875
1517	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1876	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1518		1877
1519	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1878	wlist_del (&anfds[w->fd].head, (WL)w);
1520	ev_stop (EV_A_ (W)w);	1879	ev_stop (EV_A_ (W)w);
1521		1880
1522	fd_change (EV_A_ w->fd);	1881	fd_change (EV_A_ w->fd, 1);
1523	}	1882	}
1524		1883
1525	void	1884	void noinline
1526	ev_timer_start (EV_P_ ev_timer *w)	1885	ev_timer_start (EV_P_ ev_timer *w)
1527	{	1886	{
1528	if (expect_false (ev_is_active (w)))	1887	if (expect_false (ev_is_active (w)))
1529	return;	1888	return;
1530		1889
1531	((WT)w)->at += mn_now;	1890	ev_at (w) += mn_now;
1532		1891
1533	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1892	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1534		1893
1535	ev_start (EV_A_ (W)w, ++timercnt);	1894	ev_start (EV_A_ (W)w, ++timercnt);
1536	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1895	array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1537	timers [timercnt - 1] = w;	1896	timers [timercnt] = (WT)w;
1538	upheap ((WT *)timers, timercnt - 1);	1897	upheap (timers, timercnt);
1539		1898
1540	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	1899	/*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/
1541	}	1900	}
1542		1901
1543	void	1902	void noinline
1544	ev_timer_stop (EV_P_ ev_timer *w)	1903	ev_timer_stop (EV_P_ ev_timer *w)
1545	{	1904	{
1546	ev_clear_pending (EV_A_ (W)w);	1905	clear_pending (EV_A_ (W)w);
1547	if (expect_false (!ev_is_active (w)))	1906	if (expect_false (!ev_is_active (w)))
1548	return;	1907	return;
1549		1908
1550	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1909	assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w));
1551		1910
1552	{	1911	{
1553	int active = ((W)w)->active;	1912	int active = ((W)w)->active;
1554		1913
1555	if (expect_true (--active < --timercnt))	1914	if (expect_true (active < timercnt))
1556	{	1915	{
1557	timers [active] = timers [timercnt];	1916	timers [active] = timers [timercnt];
1558	adjustheap ((WT *)timers, timercnt, active);	1917	adjustheap (timers, timercnt, active);
1559	}	1918	}
		1919
		1920	--timercnt;
1560	}	1921	}
1561		1922
1562	((WT)w)->at -= mn_now;	1923	ev_at (w) -= mn_now;
1563		1924
1564	ev_stop (EV_A_ (W)w);	1925	ev_stop (EV_A_ (W)w);
1565	}	1926	}
1566		1927
1567	void	1928	void noinline
1568	ev_timer_again (EV_P_ ev_timer *w)	1929	ev_timer_again (EV_P_ ev_timer *w)
1569	{	1930	{
1570	if (ev_is_active (w))	1931	if (ev_is_active (w))
1571	{	1932	{
1572	if (w->repeat)	1933	if (w->repeat)
1573	{	1934	{
1574	((WT)w)->at = mn_now + w->repeat;	1935	ev_at (w) = mn_now + w->repeat;
1575	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1936	adjustheap (timers, timercnt, ((W)w)->active);
1576	}	1937	}
1577	else	1938	else
1578	ev_timer_stop (EV_A_ w);	1939	ev_timer_stop (EV_A_ w);
1579	}	1940	}
1580	else if (w->repeat)	1941	else if (w->repeat)
…		…
1583	ev_timer_start (EV_A_ w);	1944	ev_timer_start (EV_A_ w);
1584	}	1945	}
1585	}	1946	}
1586		1947
1587	#if EV_PERIODIC_ENABLE	1948	#if EV_PERIODIC_ENABLE
1588	void	1949	void noinline
1589	ev_periodic_start (EV_P_ ev_periodic *w)	1950	ev_periodic_start (EV_P_ ev_periodic *w)
1590	{	1951	{
1591	if (expect_false (ev_is_active (w)))	1952	if (expect_false (ev_is_active (w)))
1592	return;	1953	return;
1593		1954
1594	if (w->reschedule_cb)	1955	if (w->reschedule_cb)
1595	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1956	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1596	else if (w->interval)	1957	else if (w->interval)
1597	{	1958	{
1598	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1959	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1599	/* this formula differs from the one in periodic_reify because we do not always round up */	1960	/* this formula differs from the one in periodic_reify because we do not always round up */
1600	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1961	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1601	}	1962	}
		1963	else
		1964	ev_at (w) = w->offset;
1602		1965
1603	ev_start (EV_A_ (W)w, ++periodiccnt);	1966	ev_start (EV_A_ (W)w, ++periodiccnt);
1604	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1967	array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1605	periodics [periodiccnt - 1] = w;	1968	periodics [periodiccnt] = (WT)w;
1606	upheap ((WT *)periodics, periodiccnt - 1);	1969	upheap (periodics, periodiccnt);
1607		1970
1608	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	1971	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1609	}	1972	}
1610		1973
1611	void	1974	void noinline
1612	ev_periodic_stop (EV_P_ ev_periodic *w)	1975	ev_periodic_stop (EV_P_ ev_periodic *w)
1613	{	1976	{
1614	ev_clear_pending (EV_A_ (W)w);	1977	clear_pending (EV_A_ (W)w);
1615	if (expect_false (!ev_is_active (w)))	1978	if (expect_false (!ev_is_active (w)))
1616	return;	1979	return;
1617		1980
1618	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1981	assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w));
1619		1982
1620	{	1983	{
1621	int active = ((W)w)->active;	1984	int active = ((W)w)->active;
1622		1985
1623	if (expect_true (--active < --periodiccnt))	1986	if (expect_true (active < periodiccnt))
1624	{	1987	{
1625	periodics [active] = periodics [periodiccnt];	1988	periodics [active] = periodics [periodiccnt];
1626	adjustheap ((WT *)periodics, periodiccnt, active);	1989	adjustheap (periodics, periodiccnt, active);
1627	}	1990	}
		1991
		1992	--periodiccnt;
1628	}	1993	}
1629		1994
1630	ev_stop (EV_A_ (W)w);	1995	ev_stop (EV_A_ (W)w);
1631	}	1996	}
1632		1997
1633	void	1998	void noinline
1634	ev_periodic_again (EV_P_ ev_periodic *w)	1999	ev_periodic_again (EV_P_ ev_periodic *w)
1635	{	2000	{
1636	/* TODO: use adjustheap and recalculation */	2001	/* TODO: use adjustheap and recalculation */
1637	ev_periodic_stop (EV_A_ w);	2002	ev_periodic_stop (EV_A_ w);
1638	ev_periodic_start (EV_A_ w);	2003	ev_periodic_start (EV_A_ w);
…		…
1641		2006
1642	#ifndef SA_RESTART	2007	#ifndef SA_RESTART
1643	# define SA_RESTART 0	2008	# define SA_RESTART 0
1644	#endif	2009	#endif
1645		2010
1646	void	2011	void noinline
1647	ev_signal_start (EV_P_ ev_signal *w)	2012	ev_signal_start (EV_P_ ev_signal *w)
1648	{	2013	{
1649	#if EV_MULTIPLICITY	2014	#if EV_MULTIPLICITY
1650	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2015	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1651	#endif	2016	#endif
1652	if (expect_false (ev_is_active (w)))	2017	if (expect_false (ev_is_active (w)))
1653	return;	2018	return;
1654		2019
1655	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2020	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1656		2021
		2022	evpipe_init (EV_A);
		2023
		2024	{
		2025	#ifndef _WIN32
		2026	sigset_t full, prev;
		2027	sigfillset (&full);
		2028	sigprocmask (SIG_SETMASK, &full, &prev);
		2029	#endif
		2030
		2031	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2032
		2033	#ifndef _WIN32
		2034	sigprocmask (SIG_SETMASK, &prev, 0);
		2035	#endif
		2036	}
		2037
1657	ev_start (EV_A_ (W)w, 1);	2038	ev_start (EV_A_ (W)w, 1);
1658	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1659	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2039	wlist_add (&signals [w->signum - 1].head, (WL)w);
1660		2040
1661	if (!((WL)w)->next)	2041	if (!((WL)w)->next)
1662	{	2042	{
1663	#if _WIN32	2043	#if _WIN32
1664	signal (w->signum, sighandler);	2044	signal (w->signum, ev_sighandler);
1665	#else	2045	#else
1666	struct sigaction sa;	2046	struct sigaction sa;
1667	sa.sa_handler = sighandler;	2047	sa.sa_handler = ev_sighandler;
1668	sigfillset (&sa.sa_mask);	2048	sigfillset (&sa.sa_mask);
1669	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2049	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1670	sigaction (w->signum, &sa, 0);	2050	sigaction (w->signum, &sa, 0);
1671	#endif	2051	#endif
1672	}	2052	}
1673	}	2053	}
1674		2054
1675	void	2055	void noinline
1676	ev_signal_stop (EV_P_ ev_signal *w)	2056	ev_signal_stop (EV_P_ ev_signal *w)
1677	{	2057	{
1678	ev_clear_pending (EV_A_ (W)w);	2058	clear_pending (EV_A_ (W)w);
1679	if (expect_false (!ev_is_active (w)))	2059	if (expect_false (!ev_is_active (w)))
1680	return;	2060	return;
1681		2061
1682	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2062	wlist_del (&signals [w->signum - 1].head, (WL)w);
1683	ev_stop (EV_A_ (W)w);	2063	ev_stop (EV_A_ (W)w);
1684		2064
1685	if (!signals [w->signum - 1].head)	2065	if (!signals [w->signum - 1].head)
1686	signal (w->signum, SIG_DFL);	2066	signal (w->signum, SIG_DFL);
1687	}	2067	}
…		…
1694	#endif	2074	#endif
1695	if (expect_false (ev_is_active (w)))	2075	if (expect_false (ev_is_active (w)))
1696	return;	2076	return;
1697		2077
1698	ev_start (EV_A_ (W)w, 1);	2078	ev_start (EV_A_ (W)w, 1);
1699	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2079	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1700	}	2080	}
1701		2081
1702	void	2082	void
1703	ev_child_stop (EV_P_ ev_child *w)	2083	ev_child_stop (EV_P_ ev_child *w)
1704	{	2084	{
1705	ev_clear_pending (EV_A_ (W)w);	2085	clear_pending (EV_A_ (W)w);
1706	if (expect_false (!ev_is_active (w)))	2086	if (expect_false (!ev_is_active (w)))
1707	return;	2087	return;
1708		2088
1709	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2089	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1710	ev_stop (EV_A_ (W)w);	2090	ev_stop (EV_A_ (W)w);
1711	}	2091	}
1712		2092
1713	#if EV_STAT_ENABLE	2093	#if EV_STAT_ENABLE
1714		2094
…		…
1718	# endif	2098	# endif
1719		2099
1720	#define DEF_STAT_INTERVAL 5.0074891	2100	#define DEF_STAT_INTERVAL 5.0074891
1721	#define MIN_STAT_INTERVAL 0.1074891	2101	#define MIN_STAT_INTERVAL 0.1074891
1722		2102
1723	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2103	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1724		2104
1725	#if EV_USE_INOTIFY	2105	#if EV_USE_INOTIFY
1726	# define EV_INOTIFY_BUFSIZE 8192	2106	# define EV_INOTIFY_BUFSIZE 8192
1727		2107
1728	static void noinline	2108	static void noinline
…		…
1879	w->attr.st_nlink = 0;	2259	w->attr.st_nlink = 0;
1880	else if (!w->attr.st_nlink)	2260	else if (!w->attr.st_nlink)
1881	w->attr.st_nlink = 1;	2261	w->attr.st_nlink = 1;
1882	}	2262	}
1883		2263
1884	void noinline	2264	static void noinline
1885	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2265	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1886	{	2266	{
1887	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	2267	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1888		2268
1889	/* we copy this here each the time so that */	2269	/* we copy this here each the time so that */
1890	/* prev has the old value when the callback gets invoked */	2270	/* prev has the old value when the callback gets invoked */
1891	w->prev = w->attr;	2271	w->prev = w->attr;
1892	ev_stat_stat (EV_A_ w);	2272	ev_stat_stat (EV_A_ w);
1893		2273
1894	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2274	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2275	if (
		2276	w->prev.st_dev != w->attr.st_dev
		2277	|| w->prev.st_ino != w->attr.st_ino
		2278	|| w->prev.st_mode != w->attr.st_mode
		2279	|| w->prev.st_nlink != w->attr.st_nlink
		2280	|| w->prev.st_uid != w->attr.st_uid
		2281	|| w->prev.st_gid != w->attr.st_gid
		2282	|| w->prev.st_rdev != w->attr.st_rdev
		2283	|| w->prev.st_size != w->attr.st_size
		2284	|| w->prev.st_atime != w->attr.st_atime
		2285	|| w->prev.st_mtime != w->attr.st_mtime
		2286	|| w->prev.st_ctime != w->attr.st_ctime
1895	{	2287	) {
1896	#if EV_USE_INOTIFY	2288	#if EV_USE_INOTIFY
1897	infy_del (EV_A_ w);	2289	infy_del (EV_A_ w);
1898	infy_add (EV_A_ w);	2290	infy_add (EV_A_ w);
1899	ev_stat_stat (EV_A_ w); /* avoid race... */	2291	ev_stat_stat (EV_A_ w); /* avoid race... */
1900	#endif	2292	#endif
…		…
1934	}	2326	}
1935		2327
1936	void	2328	void
1937	ev_stat_stop (EV_P_ ev_stat *w)	2329	ev_stat_stop (EV_P_ ev_stat *w)
1938	{	2330	{
1939	ev_clear_pending (EV_A_ (W)w);	2331	clear_pending (EV_A_ (W)w);
1940	if (expect_false (!ev_is_active (w)))	2332	if (expect_false (!ev_is_active (w)))
1941	return;	2333	return;
1942		2334
1943	#if EV_USE_INOTIFY	2335	#if EV_USE_INOTIFY
1944	infy_del (EV_A_ w);	2336	infy_del (EV_A_ w);
…		…
1947		2339
1948	ev_stop (EV_A_ (W)w);	2340	ev_stop (EV_A_ (W)w);
1949	}	2341	}
1950	#endif	2342	#endif
1951		2343
		2344	#if EV_IDLE_ENABLE
1952	void	2345	void
1953	ev_idle_start (EV_P_ ev_idle *w)	2346	ev_idle_start (EV_P_ ev_idle *w)
1954	{	2347	{
1955	if (expect_false (ev_is_active (w)))	2348	if (expect_false (ev_is_active (w)))
1956	return;	2349	return;
1957		2350
		2351	pri_adjust (EV_A_ (W)w);
		2352
		2353	{
		2354	int active = ++idlecnt [ABSPRI (w)];
		2355
		2356	++idleall;
1958	ev_start (EV_A_ (W)w, ++idlecnt);	2357	ev_start (EV_A_ (W)w, active);
		2358
1959	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2359	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1960	idles [idlecnt - 1] = w;	2360	idles [ABSPRI (w)][active - 1] = w;
		2361	}
1961	}	2362	}
1962		2363
1963	void	2364	void
1964	ev_idle_stop (EV_P_ ev_idle *w)	2365	ev_idle_stop (EV_P_ ev_idle *w)
1965	{	2366	{
1966	ev_clear_pending (EV_A_ (W)w);	2367	clear_pending (EV_A_ (W)w);
1967	if (expect_false (!ev_is_active (w)))	2368	if (expect_false (!ev_is_active (w)))
1968	return;	2369	return;
1969		2370
1970	{	2371	{
1971	int active = ((W)w)->active;	2372	int active = ((W)w)->active;
1972	idles [active - 1] = idles [--idlecnt];	2373
		2374	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1973	((W)idles [active - 1])->active = active;	2375	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2376
		2377	ev_stop (EV_A_ (W)w);
		2378	--idleall;
1974	}	2379	}
1975
1976	ev_stop (EV_A_ (W)w);
1977	}	2380	}
		2381	#endif
1978		2382
1979	void	2383	void
1980	ev_prepare_start (EV_P_ ev_prepare *w)	2384	ev_prepare_start (EV_P_ ev_prepare *w)
1981	{	2385	{
1982	if (expect_false (ev_is_active (w)))	2386	if (expect_false (ev_is_active (w)))
…		…
1988	}	2392	}
1989		2393
1990	void	2394	void
1991	ev_prepare_stop (EV_P_ ev_prepare *w)	2395	ev_prepare_stop (EV_P_ ev_prepare *w)
1992	{	2396	{
1993	ev_clear_pending (EV_A_ (W)w);	2397	clear_pending (EV_A_ (W)w);
1994	if (expect_false (!ev_is_active (w)))	2398	if (expect_false (!ev_is_active (w)))
1995	return;	2399	return;
1996		2400
1997	{	2401	{
1998	int active = ((W)w)->active;	2402	int active = ((W)w)->active;
…		…
2015	}	2419	}
2016		2420
2017	void	2421	void
2018	ev_check_stop (EV_P_ ev_check *w)	2422	ev_check_stop (EV_P_ ev_check *w)
2019	{	2423	{
2020	ev_clear_pending (EV_A_ (W)w);	2424	clear_pending (EV_A_ (W)w);
2021	if (expect_false (!ev_is_active (w)))	2425	if (expect_false (!ev_is_active (w)))
2022	return;	2426	return;
2023		2427
2024	{	2428	{
2025	int active = ((W)w)->active;	2429	int active = ((W)w)->active;
…		…
2032		2436
2033	#if EV_EMBED_ENABLE	2437	#if EV_EMBED_ENABLE
2034	void noinline	2438	void noinline
2035	ev_embed_sweep (EV_P_ ev_embed *w)	2439	ev_embed_sweep (EV_P_ ev_embed *w)
2036	{	2440	{
2037	ev_loop (w->loop, EVLOOP_NONBLOCK);	2441	ev_loop (w->other, EVLOOP_NONBLOCK);
2038	}	2442	}
2039		2443
2040	static void	2444	static void
2041	embed_cb (EV_P_ ev_io *io, int revents)	2445	embed_io_cb (EV_P_ ev_io *io, int revents)
2042	{	2446	{
2043	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2447	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2044		2448
2045	if (ev_cb (w))	2449	if (ev_cb (w))
2046	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2450	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2047	else	2451	else
2048	ev_embed_sweep (loop, w);	2452	ev_loop (w->other, EVLOOP_NONBLOCK);
2049	}	2453	}
		2454
		2455	static void
		2456	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2457	{
		2458	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2459
		2460	{
		2461	struct ev_loop *loop = w->other;
		2462
		2463	while (fdchangecnt)
		2464	{
		2465	fd_reify (EV_A);
		2466	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2467	}
		2468	}
		2469	}
		2470
		2471	#if 0
		2472	static void
		2473	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2474	{
		2475	ev_idle_stop (EV_A_ idle);
		2476	}
		2477	#endif
2050		2478
2051	void	2479	void
2052	ev_embed_start (EV_P_ ev_embed *w)	2480	ev_embed_start (EV_P_ ev_embed *w)
2053	{	2481	{
2054	if (expect_false (ev_is_active (w)))	2482	if (expect_false (ev_is_active (w)))
2055	return;	2483	return;
2056		2484
2057	{	2485	{
2058	struct ev_loop *loop = w->loop;	2486	struct ev_loop *loop = w->other;
2059	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2487	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2060	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2488	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2061	}	2489	}
2062		2490
2063	ev_set_priority (&w->io, ev_priority (w));	2491	ev_set_priority (&w->io, ev_priority (w));
2064	ev_io_start (EV_A_ &w->io);	2492	ev_io_start (EV_A_ &w->io);
2065		2493
		2494	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2495	ev_set_priority (&w->prepare, EV_MINPRI);
		2496	ev_prepare_start (EV_A_ &w->prepare);
		2497
		2498	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2499
2066	ev_start (EV_A_ (W)w, 1);	2500	ev_start (EV_A_ (W)w, 1);
2067	}	2501	}
2068		2502
2069	void	2503	void
2070	ev_embed_stop (EV_P_ ev_embed *w)	2504	ev_embed_stop (EV_P_ ev_embed *w)
2071	{	2505	{
2072	ev_clear_pending (EV_A_ (W)w);	2506	clear_pending (EV_A_ (W)w);
2073	if (expect_false (!ev_is_active (w)))	2507	if (expect_false (!ev_is_active (w)))
2074	return;	2508	return;
2075		2509
2076	ev_io_stop (EV_A_ &w->io);	2510	ev_io_stop (EV_A_ &w->io);
		2511	ev_prepare_stop (EV_A_ &w->prepare);
2077		2512
2078	ev_stop (EV_A_ (W)w);	2513	ev_stop (EV_A_ (W)w);
2079	}	2514	}
2080	#endif	2515	#endif
2081		2516
…		…
2092	}	2527	}
2093		2528
2094	void	2529	void
2095	ev_fork_stop (EV_P_ ev_fork *w)	2530	ev_fork_stop (EV_P_ ev_fork *w)
2096	{	2531	{
2097	ev_clear_pending (EV_A_ (W)w);	2532	clear_pending (EV_A_ (W)w);
2098	if (expect_false (!ev_is_active (w)))	2533	if (expect_false (!ev_is_active (w)))
2099	return;	2534	return;
2100		2535
2101	{	2536	{
2102	int active = ((W)w)->active;	2537	int active = ((W)w)->active;
…		…
2106		2541
2107	ev_stop (EV_A_ (W)w);	2542	ev_stop (EV_A_ (W)w);
2108	}	2543	}
2109	#endif	2544	#endif
2110		2545
		2546	#if EV_ASYNC_ENABLE
		2547	void
		2548	ev_async_start (EV_P_ ev_async *w)
		2549	{
		2550	if (expect_false (ev_is_active (w)))
		2551	return;
		2552
		2553	evpipe_init (EV_A);
		2554
		2555	ev_start (EV_A_ (W)w, ++asynccnt);
		2556	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2557	asyncs [asynccnt - 1] = w;
		2558	}
		2559
		2560	void
		2561	ev_async_stop (EV_P_ ev_async *w)
		2562	{
		2563	clear_pending (EV_A_ (W)w);
		2564	if (expect_false (!ev_is_active (w)))
		2565	return;
		2566
		2567	{
		2568	int active = ((W)w)->active;
		2569	asyncs [active - 1] = asyncs [--asynccnt];
		2570	((W)asyncs [active - 1])->active = active;
		2571	}
		2572
		2573	ev_stop (EV_A_ (W)w);
		2574	}
		2575
		2576	void
		2577	ev_async_send (EV_P_ ev_async *w)
		2578	{
		2579	w->sent = 1;
		2580	evpipe_write (EV_A_ &gotasync);
		2581	}
		2582	#endif
		2583
2111	/*****************************************************************************/	2584	/*****************************************************************************/
2112		2585
2113	struct ev_once	2586	struct ev_once
2114	{	2587	{
2115	ev_io io;	2588	ev_io io;
…		…
2170	ev_timer_set (&once->to, timeout, 0.);	2643	ev_timer_set (&once->to, timeout, 0.);
2171	ev_timer_start (EV_A_ &once->to);	2644	ev_timer_start (EV_A_ &once->to);
2172	}	2645	}
2173	}	2646	}
2174		2647
		2648	#if EV_MULTIPLICITY
		2649	#include "ev_wrap.h"
		2650	#endif
		2651
2175	#ifdef __cplusplus	2652	#ifdef __cplusplus
2176	}	2653	}
2177	#endif	2654	#endif
2178		2655

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