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Comparing libev/ev.c (file contents):
Revision 1.156 by root, Wed Nov 28 17:50:13 2007 UTC vs.
Revision 1.234 by root, Tue May 6 23:42:16 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_active(w) ((W)(w))->active
		331	#define ev_at(w) ((WT)(w))->at
		332
		333	#if EV_USE_MONOTONIC
		334	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		335	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	336	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		337	#endif
256		338
257	#ifdef _WIN32	339	#ifdef _WIN32
258	# include "ev_win32.c"	340	# include "ev_win32.c"
259	#endif	341	#endif
260		342
…		…
281	perror (msg);	363	perror (msg);
282	abort ();	364	abort ();
283	}	365	}
284	}	366	}
285		367
		368	static void *
		369	ev_realloc_emul (void *ptr, long size)
		370	{
		371	/* some systems, notably openbsd and darwin, fail to properly
		372	* implement realloc (x, 0) (as required by both ansi c-98 and
		373	* the single unix specification, so work around them here.
		374	*/
		375
		376	if (size)
		377	return realloc (ptr, size);
		378
		379	free (ptr);
		380	return 0;
		381	}
		382
286	static void *(*alloc)(void *ptr, long size);	383	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
287		384
288	void	385	void
289	ev_set_allocator (void *(*cb)(void *ptr, long size))	386	ev_set_allocator (void *(*cb)(void *ptr, long size))
290	{	387	{
291	alloc = cb;	388	alloc = cb;
292	}	389	}
293		390
294	inline_speed void *	391	inline_speed void *
295	ev_realloc (void *ptr, long size)	392	ev_realloc (void *ptr, long size)
296	{	393	{
297	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	394	ptr = alloc (ptr, size);
298		395
299	if (!ptr && size)	396	if (!ptr && size)
300	{	397	{
301	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	398	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
302	abort ();	399	abort ();
…		…
396	{	493	{
397	return ev_rt_now;	494	return ev_rt_now;
398	}	495	}
399	#endif	496	#endif
400		497
401	#define array_roundsize(type,n) (((n) | 4) & ~3)	498	void
		499	ev_sleep (ev_tstamp delay)
		500	{
		501	if (delay > 0.)
		502	{
		503	#if EV_USE_NANOSLEEP
		504	struct timespec ts;
		505
		506	ts.tv_sec = (time_t)delay;
		507	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		508
		509	nanosleep (&ts, 0);
		510	#elif defined(_WIN32)
		511	Sleep ((unsigned long)(delay * 1e3));
		512	#else
		513	struct timeval tv;
		514
		515	tv.tv_sec = (time_t)delay;
		516	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		517
		518	select (0, 0, 0, 0, &tv);
		519	#endif
		520	}
		521	}
		522
		523	/*****************************************************************************/
		524
		525	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
		526
		527	int inline_size
		528	array_nextsize (int elem, int cur, int cnt)
		529	{
		530	int ncur = cur + 1;
		531
		532	do
		533	ncur <<= 1;
		534	while (cnt > ncur);
		535
		536	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
		537	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
		538	{
		539	ncur *= elem;
		540	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
		541	ncur = ncur - sizeof (void *) * 4;
		542	ncur /= elem;
		543	}
		544
		545	return ncur;
		546	}
		547
		548	static noinline void *
		549	array_realloc (int elem, void *base, int *cur, int cnt)
		550	{
		551	*cur = array_nextsize (elem, *cur, cnt);
		552	return ev_realloc (base, elem * *cur);
		553	}
402		554
403	#define array_needsize(type,base,cur,cnt,init) \	555	#define array_needsize(type,base,cur,cnt,init) \
404	if (expect_false ((cnt) > cur)) \	556	if (expect_false ((cnt) > (cur))) \
405	{ \	557	{ \
406	int newcnt = cur; \	558	int ocur_ = (cur); \
407	do \	559	(base) = (type *)array_realloc \
408	{ \	560	(sizeof (type), (base), &(cur), (cnt)); \
409	newcnt = array_roundsize (type, newcnt << 1); \	561	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	}	562	}
417		563
		564	#if 0
418	#define array_slim(type,stem) \	565	#define array_slim(type,stem) \
419	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	566	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
420	{ \	567	{ \
421	stem ## max = array_roundsize (stem ## cnt >> 1); \	568	stem ## max = array_roundsize (stem ## cnt >> 1); \
422	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	569	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
423	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	570	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
424	}	571	}
		572	#endif
425		573
426	#define array_free(stem, idx) \	574	#define array_free(stem, idx) \
427	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	575	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
428		576
429	/*****************************************************************************/	577	/*****************************************************************************/
430		578
431	void noinline	579	void noinline
432	ev_feed_event (EV_P_ void *w, int revents)	580	ev_feed_event (EV_P_ void *w, int revents)
433	{	581	{
434	W w_ = (W)w;	582	W w_ = (W)w;
		583	int pri = ABSPRI (w_);
435		584
436	if (expect_false (w_->pending))	585	if (expect_false (w_->pending))
		586	pendings [pri][w_->pending - 1].events |= revents;
		587	else
437	{	588	{
		589	w_->pending = ++pendingcnt [pri];
		590	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		591	pendings [pri][w_->pending - 1].w = w_;
438	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	592	pendings [pri][w_->pending - 1].events = revents;
439	return;
440	}	593	}
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	}	594	}
447		595
448	void inline_size	596	void inline_speed
449	queue_events (EV_P_ W *events, int eventcnt, int type)	597	queue_events (EV_P_ W *events, int eventcnt, int type)
450	{	598	{
451	int i;	599	int i;
452		600
453	for (i = 0; i < eventcnt; ++i)	601	for (i = 0; i < eventcnt; ++i)
…		…
485	}	633	}
486		634
487	void	635	void
488	ev_feed_fd_event (EV_P_ int fd, int revents)	636	ev_feed_fd_event (EV_P_ int fd, int revents)
489	{	637	{
		638	if (fd >= 0 && fd < anfdmax)
490	fd_event (EV_A_ fd, revents);	639	fd_event (EV_A_ fd, revents);
491	}	640	}
492		641
493	void inline_size	642	void inline_size
494	fd_reify (EV_P)	643	fd_reify (EV_P)
495	{	644	{
…		…
499	{	648	{
500	int fd = fdchanges [i];	649	int fd = fdchanges [i];
501	ANFD *anfd = anfds + fd;	650	ANFD *anfd = anfds + fd;
502	ev_io *w;	651	ev_io *w;
503		652
504	int events = 0;	653	unsigned char events = 0;
505		654
506	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	655	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
507	events |= w->events;	656	events |= (unsigned char)w->events;
508		657
509	#if EV_SELECT_IS_WINSOCKET	658	#if EV_SELECT_IS_WINSOCKET
510	if (events)	659	if (events)
511	{	660	{
512	unsigned long argp;	661	unsigned long argp;
		662	#ifdef EV_FD_TO_WIN32_HANDLE
		663	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		664	#else
513	anfd->handle = _get_osfhandle (fd);	665	anfd->handle = _get_osfhandle (fd);
		666	#endif
514	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	667	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515	}	668	}
516	#endif	669	#endif
517		670
		671	{
		672	unsigned char o_events = anfd->events;
		673	unsigned char o_reify = anfd->reify;
		674
518	anfd->reify = 0;	675	anfd->reify = 0;
519
520	backend_modify (EV_A_ fd, anfd->events, events);
521	anfd->events = events;	676	anfd->events = events;
		677
		678	if (o_events != events || o_reify & EV_IOFDSET)
		679	backend_modify (EV_A_ fd, o_events, events);
		680	}
522	}	681	}
523		682
524	fdchangecnt = 0;	683	fdchangecnt = 0;
525	}	684	}
526		685
527	void inline_size	686	void inline_size
528	fd_change (EV_P_ int fd)	687	fd_change (EV_P_ int fd, int flags)
529	{	688	{
530	if (expect_false (anfds [fd].reify))	689	unsigned char reify = anfds [fd].reify;
531	return;
532
533	anfds [fd].reify = 1;	690	anfds [fd].reify |= flags;
534		691
		692	if (expect_true (!reify))
		693	{
535	++fdchangecnt;	694	++fdchangecnt;
536	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	695	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
537	fdchanges [fdchangecnt - 1] = fd;	696	fdchanges [fdchangecnt - 1] = fd;
		697	}
538	}	698	}
539		699
540	void inline_speed	700	void inline_speed
541	fd_kill (EV_P_ int fd)	701	fd_kill (EV_P_ int fd)
542	{	702	{
…		…
589	static void noinline	749	static void noinline
590	fd_rearm_all (EV_P)	750	fd_rearm_all (EV_P)
591	{	751	{
592	int fd;	752	int fd;
593		753
594	/* this should be highly optimised to not do anything but set a flag */
595	for (fd = 0; fd < anfdmax; ++fd)	754	for (fd = 0; fd < anfdmax; ++fd)
596	if (anfds [fd].events)	755	if (anfds [fd].events)
597	{	756	{
598	anfds [fd].events = 0;	757	anfds [fd].events = 0;
599	fd_change (EV_A_ fd);	758	fd_change (EV_A_ fd, EV_IOFDSET | 1);
600	}	759	}
601	}	760	}
602		761
603	/*****************************************************************************/	762	/*****************************************************************************/
604		763
		764	/* towards the root */
605	void inline_speed	765	void inline_speed
606	upheap (WT *heap, int k)	766	upheap (WT *heap, int k)
607	{	767	{
608	WT w = heap [k];	768	WT w = heap [k];
609		769
610	while (k && heap [k >> 1]->at > w->at)	770	for (;;)
611	{	771	{
		772	int p = k >> 1;
		773
		774	/* maybe we could use a dummy element at heap [0]? */
		775	if (!p || heap [p]->at <= w->at)
		776	break;
		777
612	heap [k] = heap [k >> 1];	778	heap [k] = heap [p];
613	((W)heap [k])->active = k + 1;	779	ev_active (heap [k]) = k;
614	k >>= 1;	780	k = p;
615	}	781	}
616		782
617	heap [k] = w;	783	heap [k] = w;
618	((W)heap [k])->active = k + 1;	784	ev_active (heap [k]) = k;
619
620	}	785	}
621		786
		787	/* away from the root */
622	void inline_speed	788	void inline_speed
623	downheap (WT *heap, int N, int k)	789	downheap (WT *heap, int N, int k)
624	{	790	{
625	WT w = heap [k];	791	WT w = heap [k];
626		792
627	while (k < (N >> 1))	793	for (;;)
628	{	794	{
629	int j = k << 1;	795	int c = k << 1;
630		796
631	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	797	if (c > N)
632	++j;
633
634	if (w->at <= heap [j]->at)
635	break;	798	break;
636		799
		800	c += c < N && heap [c]->at > heap [c + 1]->at
		801	? 1 : 0;
		802
		803	if (w->at <= heap [c]->at)
		804	break;
		805
637	heap [k] = heap [j];	806	heap [k] = heap [c];
638	((W)heap [k])->active = k + 1;	807	ev_active (heap [k]) = k;
		808
639	k = j;	809	k = c;
640	}	810	}
641		811
642	heap [k] = w;	812	heap [k] = w;
643	((W)heap [k])->active = k + 1;	813	ev_active (heap [k]) = k;
644	}	814	}
645		815
646	void inline_size	816	void inline_size
647	adjustheap (WT *heap, int N, int k)	817	adjustheap (WT *heap, int N, int k)
648	{	818	{
…		…
653	/*****************************************************************************/	823	/*****************************************************************************/
654		824
655	typedef struct	825	typedef struct
656	{	826	{
657	WL head;	827	WL head;
658	sig_atomic_t volatile gotsig;	828	EV_ATOMIC_T gotsig;
659	} ANSIG;	829	} ANSIG;
660		830
661	static ANSIG *signals;	831	static ANSIG *signals;
662	static int signalmax;	832	static int signalmax;
663		833
664	static int sigpipe [2];	834	static EV_ATOMIC_T gotsig;
665	static sig_atomic_t volatile gotsig;
666	static ev_io sigev;
667		835
668	void inline_size	836	void inline_size
669	signals_init (ANSIG *base, int count)	837	signals_init (ANSIG *base, int count)
670	{	838	{
671	while (count--)	839	while (count--)
…		…
675		843
676	++base;	844	++base;
677	}	845	}
678	}	846	}
679		847
680	static void	848	/*****************************************************************************/
681	sighandler (int signum)
682	{
683	#if _WIN32
684	signal (signum, sighandler);
685	#endif
686		849
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	850	void inline_speed
732	fd_intern (int fd)	851	fd_intern (int fd)
733	{	852	{
734	#ifdef _WIN32	853	#ifdef _WIN32
735	int arg = 1;	854	int arg = 1;
736	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	855	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
739	fcntl (fd, F_SETFL, O_NONBLOCK);	858	fcntl (fd, F_SETFL, O_NONBLOCK);
740	#endif	859	#endif
741	}	860	}
742		861
743	static void noinline	862	static void noinline
744	siginit (EV_P)	863	evpipe_init (EV_P)
745	{	864	{
		865	if (!ev_is_active (&pipeev))
		866	{
		867	#if EV_USE_EVENTFD
		868	if ((evfd = eventfd (0, 0)) >= 0)
		869	{
		870	evpipe [0] = -1;
		871	fd_intern (evfd);
		872	ev_io_set (&pipeev, evfd, EV_READ);
		873	}
		874	else
		875	#endif
		876	{
		877	while (pipe (evpipe))
		878	syserr ("(libev) error creating signal/async pipe");
		879
746	fd_intern (sigpipe [0]);	880	fd_intern (evpipe [0]);
747	fd_intern (sigpipe [1]);	881	fd_intern (evpipe [1]);
		882	ev_io_set (&pipeev, evpipe [0], EV_READ);
		883	}
748		884
749	ev_io_set (&sigev, sigpipe [0], EV_READ);
750	ev_io_start (EV_A_ &sigev);	885	ev_io_start (EV_A_ &pipeev);
751	ev_unref (EV_A); /* child watcher should not keep loop alive */	886	ev_unref (EV_A); /* watcher should not keep loop alive */
		887	}
		888	}
		889
		890	void inline_size
		891	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		892	{
		893	if (!*flag)
		894	{
		895	int old_errno = errno; /* save errno because write might clobber it */
		896
		897	*flag = 1;
		898
		899	#if EV_USE_EVENTFD
		900	if (evfd >= 0)
		901	{
		902	uint64_t counter = 1;
		903	write (evfd, &counter, sizeof (uint64_t));
		904	}
		905	else
		906	#endif
		907	write (evpipe [1], &old_errno, 1);
		908
		909	errno = old_errno;
		910	}
		911	}
		912
		913	static void
		914	pipecb (EV_P_ ev_io *iow, int revents)
		915	{
		916	#if EV_USE_EVENTFD
		917	if (evfd >= 0)
		918	{
		919	uint64_t counter;
		920	read (evfd, &counter, sizeof (uint64_t));
		921	}
		922	else
		923	#endif
		924	{
		925	char dummy;
		926	read (evpipe [0], &dummy, 1);
		927	}
		928
		929	if (gotsig && ev_is_default_loop (EV_A))
		930	{
		931	int signum;
		932	gotsig = 0;
		933
		934	for (signum = signalmax; signum--; )
		935	if (signals [signum].gotsig)
		936	ev_feed_signal_event (EV_A_ signum + 1);
		937	}
		938
		939	#if EV_ASYNC_ENABLE
		940	if (gotasync)
		941	{
		942	int i;
		943	gotasync = 0;
		944
		945	for (i = asynccnt; i--; )
		946	if (asyncs [i]->sent)
		947	{
		948	asyncs [i]->sent = 0;
		949	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		950	}
		951	}
		952	#endif
752	}	953	}
753		954
754	/*****************************************************************************/	955	/*****************************************************************************/
755		956
		957	static void
		958	ev_sighandler (int signum)
		959	{
		960	#if EV_MULTIPLICITY
		961	struct ev_loop *loop = &default_loop_struct;
		962	#endif
		963
		964	#if _WIN32
		965	signal (signum, ev_sighandler);
		966	#endif
		967
		968	signals [signum - 1].gotsig = 1;
		969	evpipe_write (EV_A_ &gotsig);
		970	}
		971
		972	void noinline
		973	ev_feed_signal_event (EV_P_ int signum)
		974	{
		975	WL w;
		976
		977	#if EV_MULTIPLICITY
		978	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		979	#endif
		980
		981	--signum;
		982
		983	if (signum < 0 || signum >= signalmax)
		984	return;
		985
		986	signals [signum].gotsig = 0;
		987
		988	for (w = signals [signum].head; w; w = w->next)
		989	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		990	}
		991
		992	/*****************************************************************************/
		993
756	static ev_child *childs [EV_PID_HASHSIZE];	994	static WL childs [EV_PID_HASHSIZE];
757		995
758	#ifndef _WIN32	996	#ifndef _WIN32
759		997
760	static ev_signal childev;	998	static ev_signal childev;
761		999
		1000	#ifndef WIFCONTINUED
		1001	# define WIFCONTINUED(status) 0
		1002	#endif
		1003
762	void inline_speed	1004	void inline_speed
763	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1005	child_reap (EV_P_ int chain, int pid, int status)
764	{	1006	{
765	ev_child *w;	1007	ev_child *w;
		1008	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
766		1009
767	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1010	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1011	{
768	if (w->pid == pid || !w->pid)	1012	if ((w->pid == pid || !w->pid)
		1013	&& (!traced || (w->flags & 1)))
769	{	1014	{
770	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	1015	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;	1016	w->rpid = pid;
772	w->rstatus = status;	1017	w->rstatus = status;
773	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1018	ev_feed_event (EV_A_ (W)w, EV_CHILD);
774	}	1019	}
		1020	}
775	}	1021	}
776		1022
777	#ifndef WCONTINUED	1023	#ifndef WCONTINUED
778	# define WCONTINUED 0	1024	# define WCONTINUED 0
779	#endif	1025	#endif
…		…
788	if (!WCONTINUED	1034	if (!WCONTINUED
789	|| errno != EINVAL	1035	|| errno != EINVAL
790	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1036	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
791	return;	1037	return;
792		1038
793	/* make sure we are called again until all childs have been reaped */	1039	/* 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 */	1040	/* 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);	1041	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
796		1042
797	child_reap (EV_A_ sw, pid, pid, status);	1043	child_reap (EV_A_ pid, pid, status);
798	if (EV_PID_HASHSIZE > 1)	1044	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 */	1045	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
800	}	1046	}
801		1047
802	#endif	1048	#endif
803		1049
804	/*****************************************************************************/	1050	/*****************************************************************************/
…		…
876	}	1122	}
877		1123
878	unsigned int	1124	unsigned int
879	ev_embeddable_backends (void)	1125	ev_embeddable_backends (void)
880	{	1126	{
881	return EVBACKEND_EPOLL	1127	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
882	| EVBACKEND_KQUEUE	1128
883	| EVBACKEND_PORT;	1129	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1130	/* please fix it and tell me how to detect the fix */
		1131	flags &= ~EVBACKEND_EPOLL;
		1132
		1133	return flags;
884	}	1134	}
885		1135
886	unsigned int	1136	unsigned int
887	ev_backend (EV_P)	1137	ev_backend (EV_P)
888	{	1138	{
889	return backend;	1139	return backend;
		1140	}
		1141
		1142	unsigned int
		1143	ev_loop_count (EV_P)
		1144	{
		1145	return loop_count;
		1146	}
		1147
		1148	void
		1149	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1150	{
		1151	io_blocktime = interval;
		1152	}
		1153
		1154	void
		1155	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1156	{
		1157	timeout_blocktime = interval;
890	}	1158	}
891		1159
892	static void noinline	1160	static void noinline
893	loop_init (EV_P_ unsigned int flags)	1161	loop_init (EV_P_ unsigned int flags)
894	{	1162	{
…		…
900	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1168	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
901	have_monotonic = 1;	1169	have_monotonic = 1;
902	}	1170	}
903	#endif	1171	#endif
904		1172
905	ev_rt_now = ev_time ();	1173	ev_rt_now = ev_time ();
906	mn_now = get_clock ();	1174	mn_now = get_clock ();
907	now_floor = mn_now;	1175	now_floor = mn_now;
908	rtmn_diff = ev_rt_now - mn_now;	1176	rtmn_diff = ev_rt_now - mn_now;
		1177
		1178	io_blocktime = 0.;
		1179	timeout_blocktime = 0.;
		1180	backend = 0;
		1181	backend_fd = -1;
		1182	gotasync = 0;
		1183	#if EV_USE_INOTIFY
		1184	fs_fd = -2;
		1185	#endif
		1186
		1187	/* pid check not overridable via env */
		1188	#ifndef _WIN32
		1189	if (flags & EVFLAG_FORKCHECK)
		1190	curpid = getpid ();
		1191	#endif
909		1192
910	if (!(flags & EVFLAG_NOENV)	1193	if (!(flags & EVFLAG_NOENV)
911	&& !enable_secure ()	1194	&& !enable_secure ()
912	&& getenv ("LIBEV_FLAGS"))	1195	&& getenv ("LIBEV_FLAGS"))
913	flags = atoi (getenv ("LIBEV_FLAGS"));	1196	flags = atoi (getenv ("LIBEV_FLAGS"));
914		1197
915	if (!(flags & 0x0000ffffUL))	1198	if (!(flags & 0x0000ffffU))
916	flags |= ev_recommended_backends ();	1199	flags |= ev_recommended_backends ();
917
918	backend = 0;
919	backend_fd = -1;
920	#if EV_USE_INOTIFY
921	fs_fd = -2;
922	#endif
923		1200
924	#if EV_USE_PORT	1201	#if EV_USE_PORT
925	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1202	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
926	#endif	1203	#endif
927	#if EV_USE_KQUEUE	1204	#if EV_USE_KQUEUE
…		…
935	#endif	1212	#endif
936	#if EV_USE_SELECT	1213	#if EV_USE_SELECT
937	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1214	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
938	#endif	1215	#endif
939		1216
940	ev_init (&sigev, sigcb);	1217	ev_init (&pipeev, pipecb);
941	ev_set_priority (&sigev, EV_MAXPRI);	1218	ev_set_priority (&pipeev, EV_MAXPRI);
942	}	1219	}
943	}	1220	}
944		1221
945	static void noinline	1222	static void noinline
946	loop_destroy (EV_P)	1223	loop_destroy (EV_P)
947	{	1224	{
948	int i;	1225	int i;
		1226
		1227	if (ev_is_active (&pipeev))
		1228	{
		1229	ev_ref (EV_A); /* signal watcher */
		1230	ev_io_stop (EV_A_ &pipeev);
		1231
		1232	#if EV_USE_EVENTFD
		1233	if (evfd >= 0)
		1234	close (evfd);
		1235	#endif
		1236
		1237	if (evpipe [0] >= 0)
		1238	{
		1239	close (evpipe [0]);
		1240	close (evpipe [1]);
		1241	}
		1242	}
949		1243
950	#if EV_USE_INOTIFY	1244	#if EV_USE_INOTIFY
951	if (fs_fd >= 0)	1245	if (fs_fd >= 0)
952	close (fs_fd);	1246	close (fs_fd);
953	#endif	1247	#endif
…		…
970	#if EV_USE_SELECT	1264	#if EV_USE_SELECT
971	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1265	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
972	#endif	1266	#endif
973		1267
974	for (i = NUMPRI; i--; )	1268	for (i = NUMPRI; i--; )
		1269	{
975	array_free (pending, [i]);	1270	array_free (pending, [i]);
		1271	#if EV_IDLE_ENABLE
		1272	array_free (idle, [i]);
		1273	#endif
		1274	}
		1275
		1276	ev_free (anfds); anfdmax = 0;
976		1277
977	/* have to use the microsoft-never-gets-it-right macro */	1278	/* have to use the microsoft-never-gets-it-right macro */
978	array_free (fdchange, EMPTY0);	1279	array_free (fdchange, EMPTY);
979	array_free (timer, EMPTY0);	1280	array_free (timer, EMPTY);
980	#if EV_PERIODIC_ENABLE	1281	#if EV_PERIODIC_ENABLE
981	array_free (periodic, EMPTY0);	1282	array_free (periodic, EMPTY);
982	#endif	1283	#endif
		1284	#if EV_FORK_ENABLE
983	array_free (idle, EMPTY0);	1285	array_free (fork, EMPTY);
		1286	#endif
984	array_free (prepare, EMPTY0);	1287	array_free (prepare, EMPTY);
985	array_free (check, EMPTY0);	1288	array_free (check, EMPTY);
		1289	#if EV_ASYNC_ENABLE
		1290	array_free (async, EMPTY);
		1291	#endif
986		1292
987	backend = 0;	1293	backend = 0;
988	}	1294	}
989		1295
		1296	#if EV_USE_INOTIFY
990	void inline_size infy_fork (EV_P);	1297	void inline_size infy_fork (EV_P);
		1298	#endif
991		1299
992	void inline_size	1300	void inline_size
993	loop_fork (EV_P)	1301	loop_fork (EV_P)
994	{	1302	{
995	#if EV_USE_PORT	1303	#if EV_USE_PORT
…		…
1003	#endif	1311	#endif
1004	#if EV_USE_INOTIFY	1312	#if EV_USE_INOTIFY
1005	infy_fork (EV_A);	1313	infy_fork (EV_A);
1006	#endif	1314	#endif
1007		1315
1008	if (ev_is_active (&sigev))	1316	if (ev_is_active (&pipeev))
1009	{	1317	{
1010	/* default loop */	1318	/* this "locks" the handlers against writing to the pipe */
		1319	/* while we modify the fd vars */
		1320	gotsig = 1;
		1321	#if EV_ASYNC_ENABLE
		1322	gotasync = 1;
		1323	#endif
1011		1324
1012	ev_ref (EV_A);	1325	ev_ref (EV_A);
1013	ev_io_stop (EV_A_ &sigev);	1326	ev_io_stop (EV_A_ &pipeev);
		1327
		1328	#if EV_USE_EVENTFD
		1329	if (evfd >= 0)
		1330	close (evfd);
		1331	#endif
		1332
		1333	if (evpipe [0] >= 0)
		1334	{
1014	close (sigpipe [0]);	1335	close (evpipe [0]);
1015	close (sigpipe [1]);	1336	close (evpipe [1]);
		1337	}
1016		1338
1017	while (pipe (sigpipe))
1018	syserr ("(libev) error creating pipe");
1019
1020	siginit (EV_A);	1339	evpipe_init (EV_A);
		1340	/* now iterate over everything, in case we missed something */
		1341	pipecb (EV_A_ &pipeev, EV_READ);
1021	}	1342	}
1022		1343
1023	postfork = 0;	1344	postfork = 0;
1024	}	1345	}
1025		1346
…		…
1047	}	1368	}
1048		1369
1049	void	1370	void
1050	ev_loop_fork (EV_P)	1371	ev_loop_fork (EV_P)
1051	{	1372	{
1052	postfork = 1;	1373	postfork = 1; /* must be in line with ev_default_fork */
1053	}	1374	}
1054
1055	#endif	1375	#endif
1056		1376
1057	#if EV_MULTIPLICITY	1377	#if EV_MULTIPLICITY
1058	struct ev_loop *	1378	struct ev_loop *
1059	ev_default_loop_init (unsigned int flags)	1379	ev_default_loop_init (unsigned int flags)
1060	#else	1380	#else
1061	int	1381	int
1062	ev_default_loop (unsigned int flags)	1382	ev_default_loop (unsigned int flags)
1063	#endif	1383	#endif
1064	{	1384	{
1065	if (sigpipe [0] == sigpipe [1])
1066	if (pipe (sigpipe))
1067	return 0;
1068
1069	if (!ev_default_loop_ptr)	1385	if (!ev_default_loop_ptr)
1070	{	1386	{
1071	#if EV_MULTIPLICITY	1387	#if EV_MULTIPLICITY
1072	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1388	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1073	#else	1389	#else
…		…
1076		1392
1077	loop_init (EV_A_ flags);	1393	loop_init (EV_A_ flags);
1078		1394
1079	if (ev_backend (EV_A))	1395	if (ev_backend (EV_A))
1080	{	1396	{
1081	siginit (EV_A);
1082
1083	#ifndef _WIN32	1397	#ifndef _WIN32
1084	ev_signal_init (&childev, childcb, SIGCHLD);	1398	ev_signal_init (&childev, childcb, SIGCHLD);
1085	ev_set_priority (&childev, EV_MAXPRI);	1399	ev_set_priority (&childev, EV_MAXPRI);
1086	ev_signal_start (EV_A_ &childev);	1400	ev_signal_start (EV_A_ &childev);
1087	ev_unref (EV_A); /* child watcher should not keep loop alive */	1401	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1104	#ifndef _WIN32	1418	#ifndef _WIN32
1105	ev_ref (EV_A); /* child watcher */	1419	ev_ref (EV_A); /* child watcher */
1106	ev_signal_stop (EV_A_ &childev);	1420	ev_signal_stop (EV_A_ &childev);
1107	#endif	1421	#endif
1108		1422
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);	1423	loop_destroy (EV_A);
1116	}	1424	}
1117		1425
1118	void	1426	void
1119	ev_default_fork (void)	1427	ev_default_fork (void)
…		…
1121	#if EV_MULTIPLICITY	1429	#if EV_MULTIPLICITY
1122	struct ev_loop *loop = ev_default_loop_ptr;	1430	struct ev_loop *loop = ev_default_loop_ptr;
1123	#endif	1431	#endif
1124		1432
1125	if (backend)	1433	if (backend)
1126	postfork = 1;	1434	postfork = 1; /* must be in line with ev_loop_fork */
1127	}	1435	}
1128		1436
1129	/*****************************************************************************/	1437	/*****************************************************************************/
1130		1438
1131	int inline_size	1439	void
1132	any_pending (EV_P)	1440	ev_invoke (EV_P_ void *w, int revents)
1133	{	1441	{
1134	int pri;	1442	EV_CB_INVOKE ((W)w, revents);
1135
1136	for (pri = NUMPRI; pri--; )
1137	if (pendingcnt [pri])
1138	return 1;
1139
1140	return 0;
1141	}	1443	}
1142		1444
1143	void inline_speed	1445	void inline_speed
1144	call_pending (EV_P)	1446	call_pending (EV_P)
1145	{	1447	{
…		…
1158	EV_CB_INVOKE (p->w, p->events);	1460	EV_CB_INVOKE (p->w, p->events);
1159	}	1461	}
1160	}	1462	}
1161	}	1463	}
1162		1464
		1465	#if EV_IDLE_ENABLE
		1466	void inline_size
		1467	idle_reify (EV_P)
		1468	{
		1469	if (expect_false (idleall))
		1470	{
		1471	int pri;
		1472
		1473	for (pri = NUMPRI; pri--; )
		1474	{
		1475	if (pendingcnt [pri])
		1476	break;
		1477
		1478	if (idlecnt [pri])
		1479	{
		1480	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1481	break;
		1482	}
		1483	}
		1484	}
		1485	}
		1486	#endif
		1487
1163	void inline_size	1488	void inline_size
1164	timers_reify (EV_P)	1489	timers_reify (EV_P)
1165	{	1490	{
1166	while (timercnt && ((WT)timers [0])->at <= mn_now)	1491	while (timercnt && ev_at (timers [1]) <= mn_now)
1167	{	1492	{
1168	ev_timer *w = timers [0];	1493	ev_timer *w = (ev_timer *)timers [1];
1169		1494
1170	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1495	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1171		1496
1172	/* first reschedule or stop timer */	1497	/* first reschedule or stop timer */
1173	if (w->repeat)	1498	if (w->repeat)
1174	{	1499	{
1175	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1500	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1176		1501
1177	((WT)w)->at += w->repeat;	1502	ev_at (w) += w->repeat;
1178	if (((WT)w)->at < mn_now)	1503	if (ev_at (w) < mn_now)
1179	((WT)w)->at = mn_now;	1504	ev_at (w) = mn_now;
1180		1505
1181	downheap ((WT *)timers, timercnt, 0);	1506	downheap (timers, timercnt, 1);
1182	}	1507	}
1183	else	1508	else
1184	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1509	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1185		1510
1186	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1511	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1189		1514
1190	#if EV_PERIODIC_ENABLE	1515	#if EV_PERIODIC_ENABLE
1191	void inline_size	1516	void inline_size
1192	periodics_reify (EV_P)	1517	periodics_reify (EV_P)
1193	{	1518	{
1194	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1519	while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now)
1195	{	1520	{
1196	ev_periodic *w = periodics [0];	1521	ev_periodic *w = (ev_periodic *)periodics [1];
1197		1522
1198	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1523	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1199		1524
1200	/* first reschedule or stop timer */	1525	/* first reschedule or stop timer */
1201	if (w->reschedule_cb)	1526	if (w->reschedule_cb)
1202	{	1527	{
1203	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1528	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));	1529	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now));
1205	downheap ((WT *)periodics, periodiccnt, 0);	1530	downheap (periodics, periodiccnt, 1);
1206	}	1531	}
1207	else if (w->interval)	1532	else if (w->interval)
1208	{	1533	{
1209	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1534	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1535	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));	1536	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);	1537	downheap (periodics, periodiccnt, 1);
1212	}	1538	}
1213	else	1539	else
1214	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1540	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1215		1541
1216	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1542	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1221	periodics_reschedule (EV_P)	1547	periodics_reschedule (EV_P)
1222	{	1548	{
1223	int i;	1549	int i;
1224		1550
1225	/* adjust periodics after time jump */	1551	/* adjust periodics after time jump */
1226	for (i = 0; i < periodiccnt; ++i)	1552	for (i = 1; i <= periodiccnt; ++i)
1227	{	1553	{
1228	ev_periodic *w = periodics [i];	1554	ev_periodic *w = (ev_periodic *)periodics [i];
1229		1555
1230	if (w->reschedule_cb)	1556	if (w->reschedule_cb)
1231	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1557	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1232	else if (w->interval)	1558	else if (w->interval)
1233	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1559	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1234	}	1560	}
1235		1561
1236	/* now rebuild the heap */	1562	/* now rebuild the heap */
1237	for (i = periodiccnt >> 1; i--; )	1563	for (i = periodiccnt >> 1; i--; )
1238	downheap ((WT *)periodics, periodiccnt, i);	1564	downheap (periodics, periodiccnt, i);
1239	}	1565	}
1240	#endif	1566	#endif
1241		1567
1242	int inline_size	1568	void inline_speed
1243	time_update_monotonic (EV_P)	1569	time_update (EV_P_ ev_tstamp max_block)
1244	{	1570	{
		1571	int i;
		1572
		1573	#if EV_USE_MONOTONIC
		1574	if (expect_true (have_monotonic))
		1575	{
		1576	ev_tstamp odiff = rtmn_diff;
		1577
1245	mn_now = get_clock ();	1578	mn_now = get_clock ();
1246		1579
		1580	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1581	/* interpolate in the meantime */
1247	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1582	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1248	{	1583	{
1249	ev_rt_now = rtmn_diff + mn_now;	1584	ev_rt_now = rtmn_diff + mn_now;
1250	return 0;	1585	return;
1251	}	1586	}
1252	else	1587
1253	{
1254	now_floor = mn_now;	1588	now_floor = mn_now;
1255	ev_rt_now = ev_time ();	1589	ev_rt_now = ev_time ();
1256	return 1;
1257	}
1258	}
1259		1590
1260	void inline_size	1591	/* loop a few times, before making important decisions.
1261	time_update (EV_P)	1592	* on the choice of "4": one iteration isn't enough,
1262	{	1593	* in case we get preempted during the calls to
1263	int i;	1594	* ev_time and get_clock. a second call is almost guaranteed
1264		1595	* to succeed in that case, though. and looping a few more times
1265	#if EV_USE_MONOTONIC	1596	* doesn't hurt either as we only do this on time-jumps or
1266	if (expect_true (have_monotonic))	1597	* in the unlikely event of having been preempted here.
1267	{	1598	*/
1268	if (time_update_monotonic (EV_A))	1599	for (i = 4; --i; )
1269	{	1600	{
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;	1601	rtmn_diff = ev_rt_now - mn_now;
1283		1602
1284	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1603	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1285	return; /* all is well */	1604	return; /* all is well */
1286		1605
1287	ev_rt_now = ev_time ();	1606	ev_rt_now = ev_time ();
1288	mn_now = get_clock ();	1607	mn_now = get_clock ();
1289	now_floor = mn_now;	1608	now_floor = mn_now;
1290	}	1609	}
1291		1610
1292	# if EV_PERIODIC_ENABLE	1611	# if EV_PERIODIC_ENABLE
1293	periodics_reschedule (EV_A);	1612	periodics_reschedule (EV_A);
1294	# endif	1613	# endif
1295	/* no timer adjustment, as the monotonic clock doesn't jump */	1614	/* no timer adjustment, as the monotonic clock doesn't jump */
1296	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1615	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1297	}
1298	}	1616	}
1299	else	1617	else
1300	#endif	1618	#endif
1301	{	1619	{
1302	ev_rt_now = ev_time ();	1620	ev_rt_now = ev_time ();
1303		1621
1304	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1622	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1305	{	1623	{
1306	#if EV_PERIODIC_ENABLE	1624	#if EV_PERIODIC_ENABLE
1307	periodics_reschedule (EV_A);	1625	periodics_reschedule (EV_A);
1308	#endif	1626	#endif
1309
1310	/* adjust timers. this is easy, as the offset is the same for all */	1627	/* adjust timers. this is easy, as the offset is the same for all of them */
1311	for (i = 0; i < timercnt; ++i)	1628	for (i = 1; i <= timercnt; ++i)
1312	((WT)timers [i])->at += ev_rt_now - mn_now;	1629	ev_at (timers [i]) += ev_rt_now - mn_now;
1313	}	1630	}
1314		1631
1315	mn_now = ev_rt_now;	1632	mn_now = ev_rt_now;
1316	}	1633	}
1317	}	1634	}
…		…
1331	static int loop_done;	1648	static int loop_done;
1332		1649
1333	void	1650	void
1334	ev_loop (EV_P_ int flags)	1651	ev_loop (EV_P_ int flags)
1335	{	1652	{
1336	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1653	loop_done = EVUNLOOP_CANCEL;
1337	? EVUNLOOP_ONE
1338	: EVUNLOOP_CANCEL;
1339		1654
1340	while (activecnt)	1655	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1656
		1657	do
1341	{	1658	{
1342	/* we might have forked, so reify kernel state if necessary */	1659	#ifndef _WIN32
		1660	if (expect_false (curpid)) /* penalise the forking check even more */
		1661	if (expect_false (getpid () != curpid))
		1662	{
		1663	curpid = getpid ();
		1664	postfork = 1;
		1665	}
		1666	#endif
		1667
1343	#if EV_FORK_ENABLE	1668	#if EV_FORK_ENABLE
		1669	/* we might have forked, so queue fork handlers */
1344	if (expect_false (postfork))	1670	if (expect_false (postfork))
1345	if (forkcnt)	1671	if (forkcnt)
1346	{	1672	{
1347	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1673	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1348	call_pending (EV_A);	1674	call_pending (EV_A);
1349	}	1675	}
1350	#endif	1676	#endif
1351		1677
1352	/* queue check watchers (and execute them) */	1678	/* queue prepare watchers (and execute them) */
1353	if (expect_false (preparecnt))	1679	if (expect_false (preparecnt))
1354	{	1680	{
1355	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1681	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1356	call_pending (EV_A);	1682	call_pending (EV_A);
1357	}	1683	}
1358		1684
		1685	if (expect_false (!activecnt))
		1686	break;
		1687
1359	/* we might have forked, so reify kernel state if necessary */	1688	/* we might have forked, so reify kernel state if necessary */
1360	if (expect_false (postfork))	1689	if (expect_false (postfork))
1361	loop_fork (EV_A);	1690	loop_fork (EV_A);
1362		1691
1363	/* update fd-related kernel structures */	1692	/* update fd-related kernel structures */
1364	fd_reify (EV_A);	1693	fd_reify (EV_A);
1365		1694
1366	/* calculate blocking time */	1695	/* calculate blocking time */
1367	{	1696	{
1368	double block;	1697	ev_tstamp waittime = 0.;
		1698	ev_tstamp sleeptime = 0.;
1369		1699
1370	if (flags & EVLOOP_NONBLOCK || idlecnt)	1700	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1371	block = 0.; /* do not block at all */
1372	else
1373	{	1701	{
1374	/* update time to cancel out callback processing overhead */	1702	/* 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);	1703	time_update (EV_A_ 1e100);
1378	else
1379	#endif
1380	{
1381	ev_rt_now = ev_time ();
1382	mn_now = ev_rt_now;
1383	}
1384		1704
1385	block = MAX_BLOCKTIME;	1705	waittime = MAX_BLOCKTIME;
1386		1706
1387	if (timercnt)	1707	if (timercnt)
1388	{	1708	{
1389	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1709	ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge;
1390	if (block > to) block = to;	1710	if (waittime > to) waittime = to;
1391	}	1711	}
1392		1712
1393	#if EV_PERIODIC_ENABLE	1713	#if EV_PERIODIC_ENABLE
1394	if (periodiccnt)	1714	if (periodiccnt)
1395	{	1715	{
1396	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1716	ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge;
1397	if (block > to) block = to;	1717	if (waittime > to) waittime = to;
1398	}	1718	}
1399	#endif	1719	#endif
1400		1720
1401	if (expect_false (block < 0.)) block = 0.;	1721	if (expect_false (waittime < timeout_blocktime))
		1722	waittime = timeout_blocktime;
		1723
		1724	sleeptime = waittime - backend_fudge;
		1725
		1726	if (expect_true (sleeptime > io_blocktime))
		1727	sleeptime = io_blocktime;
		1728
		1729	if (sleeptime)
		1730	{
		1731	ev_sleep (sleeptime);
		1732	waittime -= sleeptime;
		1733	}
1402	}	1734	}
1403		1735
		1736	++loop_count;
1404	backend_poll (EV_A_ block);	1737	backend_poll (EV_A_ waittime);
		1738
		1739	/* update ev_rt_now, do magic */
		1740	time_update (EV_A_ waittime + sleeptime);
1405	}	1741	}
1406
1407	/* update ev_rt_now, do magic */
1408	time_update (EV_A);
1409		1742
1410	/* queue pending timers and reschedule them */	1743	/* queue pending timers and reschedule them */
1411	timers_reify (EV_A); /* relative timers called last */	1744	timers_reify (EV_A); /* relative timers called last */
1412	#if EV_PERIODIC_ENABLE	1745	#if EV_PERIODIC_ENABLE
1413	periodics_reify (EV_A); /* absolute timers called first */	1746	periodics_reify (EV_A); /* absolute timers called first */
1414	#endif	1747	#endif
1415		1748
		1749	#if EV_IDLE_ENABLE
1416	/* queue idle watchers unless other events are pending */	1750	/* queue idle watchers unless other events are pending */
1417	if (idlecnt && !any_pending (EV_A))	1751	idle_reify (EV_A);
1418	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1752	#endif
1419		1753
1420	/* queue check watchers, to be executed first */	1754	/* queue check watchers, to be executed first */
1421	if (expect_false (checkcnt))	1755	if (expect_false (checkcnt))
1422	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1756	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1423		1757
1424	call_pending (EV_A);	1758	call_pending (EV_A);
1425
1426	if (expect_false (loop_done))
1427	break;
1428	}	1759	}
		1760	while (expect_true (
		1761	activecnt
		1762	&& !loop_done
		1763	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1764	));
1429		1765
1430	if (loop_done == EVUNLOOP_ONE)	1766	if (loop_done == EVUNLOOP_ONE)
1431	loop_done = EVUNLOOP_CANCEL;	1767	loop_done = EVUNLOOP_CANCEL;
1432	}	1768	}
1433		1769
…		…
1460	head = &(*head)->next;	1796	head = &(*head)->next;
1461	}	1797	}
1462	}	1798	}
1463		1799
1464	void inline_speed	1800	void inline_speed
1465	ev_clear_pending (EV_P_ W w)	1801	clear_pending (EV_P_ W w)
1466	{	1802	{
1467	if (w->pending)	1803	if (w->pending)
1468	{	1804	{
1469	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1805	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1470	w->pending = 0;	1806	w->pending = 0;
1471	}	1807	}
1472	}	1808	}
1473		1809
		1810	int
		1811	ev_clear_pending (EV_P_ void *w)
		1812	{
		1813	W w_ = (W)w;
		1814	int pending = w_->pending;
		1815
		1816	if (expect_true (pending))
		1817	{
		1818	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1819	w_->pending = 0;
		1820	p->w = 0;
		1821	return p->events;
		1822	}
		1823	else
		1824	return 0;
		1825	}
		1826
		1827	void inline_size
		1828	pri_adjust (EV_P_ W w)
		1829	{
		1830	int pri = w->priority;
		1831	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1832	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1833	w->priority = pri;
		1834	}
		1835
1474	void inline_speed	1836	void inline_speed
1475	ev_start (EV_P_ W w, int active)	1837	ev_start (EV_P_ W w, int active)
1476	{	1838	{
1477	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1839	pri_adjust (EV_A_ w);
1478	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1479
1480	w->active = active;	1840	w->active = active;
1481	ev_ref (EV_A);	1841	ev_ref (EV_A);
1482	}	1842	}
1483		1843
1484	void inline_size	1844	void inline_size
…		…
1488	w->active = 0;	1848	w->active = 0;
1489	}	1849	}
1490		1850
1491	/*****************************************************************************/	1851	/*****************************************************************************/
1492		1852
1493	void	1853	void noinline
1494	ev_io_start (EV_P_ ev_io *w)	1854	ev_io_start (EV_P_ ev_io *w)
1495	{	1855	{
1496	int fd = w->fd;	1856	int fd = w->fd;
1497		1857
1498	if (expect_false (ev_is_active (w)))	1858	if (expect_false (ev_is_active (w)))
…		…
1500		1860
1501	assert (("ev_io_start called with negative fd", fd >= 0));	1861	assert (("ev_io_start called with negative fd", fd >= 0));
1502		1862
1503	ev_start (EV_A_ (W)w, 1);	1863	ev_start (EV_A_ (W)w, 1);
1504	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1864	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1505	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1865	wlist_add (&anfds[fd].head, (WL)w);
1506		1866
1507	fd_change (EV_A_ fd);	1867	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1868	w->events &= ~EV_IOFDSET;
1508	}	1869	}
1509		1870
1510	void	1871	void noinline
1511	ev_io_stop (EV_P_ ev_io *w)	1872	ev_io_stop (EV_P_ ev_io *w)
1512	{	1873	{
1513	ev_clear_pending (EV_A_ (W)w);	1874	clear_pending (EV_A_ (W)w);
1514	if (expect_false (!ev_is_active (w)))	1875	if (expect_false (!ev_is_active (w)))
1515	return;	1876	return;
1516		1877
1517	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1878	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1518		1879
1519	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1880	wlist_del (&anfds[w->fd].head, (WL)w);
1520	ev_stop (EV_A_ (W)w);	1881	ev_stop (EV_A_ (W)w);
1521		1882
1522	fd_change (EV_A_ w->fd);	1883	fd_change (EV_A_ w->fd, 1);
1523	}	1884	}
1524		1885
1525	void	1886	void noinline
1526	ev_timer_start (EV_P_ ev_timer *w)	1887	ev_timer_start (EV_P_ ev_timer *w)
1527	{	1888	{
1528	if (expect_false (ev_is_active (w)))	1889	if (expect_false (ev_is_active (w)))
1529	return;	1890	return;
1530		1891
1531	((WT)w)->at += mn_now;	1892	ev_at (w) += mn_now;
1532		1893
1533	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1894	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1534		1895
1535	ev_start (EV_A_ (W)w, ++timercnt);	1896	ev_start (EV_A_ (W)w, ++timercnt);
1536	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1897	array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2);
1537	timers [timercnt - 1] = w;	1898	timers [timercnt] = (WT)w;
1538	upheap ((WT *)timers, timercnt - 1);	1899	upheap (timers, timercnt);
1539		1900
1540	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	1901	/*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/
1541	}	1902	}
1542		1903
1543	void	1904	void noinline
1544	ev_timer_stop (EV_P_ ev_timer *w)	1905	ev_timer_stop (EV_P_ ev_timer *w)
1545	{	1906	{
1546	ev_clear_pending (EV_A_ (W)w);	1907	clear_pending (EV_A_ (W)w);
1547	if (expect_false (!ev_is_active (w)))	1908	if (expect_false (!ev_is_active (w)))
1548	return;	1909	return;
1549		1910
1550	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1551
1552	{	1911	{
1553	int active = ((W)w)->active;	1912	int active = ev_active (w);
1554		1913
		1914	assert (("internal timer heap corruption", timers [active] == (WT)w));
		1915
1555	if (expect_true (--active < --timercnt))	1916	if (expect_true (active < timercnt))
1556	{	1917	{
1557	timers [active] = timers [timercnt];	1918	timers [active] = timers [timercnt];
1558	adjustheap ((WT *)timers, timercnt, active);	1919	adjustheap (timers, timercnt, active);
1559	}	1920	}
		1921
		1922	--timercnt;
1560	}	1923	}
1561		1924
1562	((WT)w)->at -= mn_now;	1925	ev_at (w) -= mn_now;
1563		1926
1564	ev_stop (EV_A_ (W)w);	1927	ev_stop (EV_A_ (W)w);
1565	}	1928	}
1566		1929
1567	void	1930	void noinline
1568	ev_timer_again (EV_P_ ev_timer *w)	1931	ev_timer_again (EV_P_ ev_timer *w)
1569	{	1932	{
1570	if (ev_is_active (w))	1933	if (ev_is_active (w))
1571	{	1934	{
1572	if (w->repeat)	1935	if (w->repeat)
1573	{	1936	{
1574	((WT)w)->at = mn_now + w->repeat;	1937	ev_at (w) = mn_now + w->repeat;
1575	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1938	adjustheap (timers, timercnt, ev_active (w));
1576	}	1939	}
1577	else	1940	else
1578	ev_timer_stop (EV_A_ w);	1941	ev_timer_stop (EV_A_ w);
1579	}	1942	}
1580	else if (w->repeat)	1943	else if (w->repeat)
1581	{	1944	{
1582	w->at = w->repeat;	1945	ev_at (w) = w->repeat;
1583	ev_timer_start (EV_A_ w);	1946	ev_timer_start (EV_A_ w);
1584	}	1947	}
1585	}	1948	}
1586		1949
1587	#if EV_PERIODIC_ENABLE	1950	#if EV_PERIODIC_ENABLE
1588	void	1951	void noinline
1589	ev_periodic_start (EV_P_ ev_periodic *w)	1952	ev_periodic_start (EV_P_ ev_periodic *w)
1590	{	1953	{
1591	if (expect_false (ev_is_active (w)))	1954	if (expect_false (ev_is_active (w)))
1592	return;	1955	return;
1593		1956
1594	if (w->reschedule_cb)	1957	if (w->reschedule_cb)
1595	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1958	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1596	else if (w->interval)	1959	else if (w->interval)
1597	{	1960	{
1598	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1961	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 */	1962	/* 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;	1963	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1601	}	1964	}
		1965	else
		1966	ev_at (w) = w->offset;
1602		1967
1603	ev_start (EV_A_ (W)w, ++periodiccnt);	1968	ev_start (EV_A_ (W)w, ++periodiccnt);
1604	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1969	array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2);
1605	periodics [periodiccnt - 1] = w;	1970	periodics [periodiccnt] = (WT)w;
1606	upheap ((WT *)periodics, periodiccnt - 1);	1971	upheap (periodics, periodiccnt);
1607		1972
1608	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	1973	/*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/
1609	}	1974	}
1610		1975
1611	void	1976	void noinline
1612	ev_periodic_stop (EV_P_ ev_periodic *w)	1977	ev_periodic_stop (EV_P_ ev_periodic *w)
1613	{	1978	{
1614	ev_clear_pending (EV_A_ (W)w);	1979	clear_pending (EV_A_ (W)w);
1615	if (expect_false (!ev_is_active (w)))	1980	if (expect_false (!ev_is_active (w)))
1616	return;	1981	return;
1617		1982
1618	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1619
1620	{	1983	{
1621	int active = ((W)w)->active;	1984	int active = ev_active (w);
1622		1985
		1986	assert (("internal periodic heap corruption", periodics [active] == (WT)w));
		1987
1623	if (expect_true (--active < --periodiccnt))	1988	if (expect_true (active < periodiccnt))
1624	{	1989	{
1625	periodics [active] = periodics [periodiccnt];	1990	periodics [active] = periodics [periodiccnt];
1626	adjustheap ((WT *)periodics, periodiccnt, active);	1991	adjustheap (periodics, periodiccnt, active);
1627	}	1992	}
		1993
		1994	--periodiccnt;
1628	}	1995	}
1629		1996
1630	ev_stop (EV_A_ (W)w);	1997	ev_stop (EV_A_ (W)w);
1631	}	1998	}
1632		1999
1633	void	2000	void noinline
1634	ev_periodic_again (EV_P_ ev_periodic *w)	2001	ev_periodic_again (EV_P_ ev_periodic *w)
1635	{	2002	{
1636	/* TODO: use adjustheap and recalculation */	2003	/* TODO: use adjustheap and recalculation */
1637	ev_periodic_stop (EV_A_ w);	2004	ev_periodic_stop (EV_A_ w);
1638	ev_periodic_start (EV_A_ w);	2005	ev_periodic_start (EV_A_ w);
…		…
1641		2008
1642	#ifndef SA_RESTART	2009	#ifndef SA_RESTART
1643	# define SA_RESTART 0	2010	# define SA_RESTART 0
1644	#endif	2011	#endif
1645		2012
1646	void	2013	void noinline
1647	ev_signal_start (EV_P_ ev_signal *w)	2014	ev_signal_start (EV_P_ ev_signal *w)
1648	{	2015	{
1649	#if EV_MULTIPLICITY	2016	#if EV_MULTIPLICITY
1650	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2017	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1651	#endif	2018	#endif
1652	if (expect_false (ev_is_active (w)))	2019	if (expect_false (ev_is_active (w)))
1653	return;	2020	return;
1654		2021
1655	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2022	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1656		2023
		2024	evpipe_init (EV_A);
		2025
		2026	{
		2027	#ifndef _WIN32
		2028	sigset_t full, prev;
		2029	sigfillset (&full);
		2030	sigprocmask (SIG_SETMASK, &full, &prev);
		2031	#endif
		2032
		2033	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		2034
		2035	#ifndef _WIN32
		2036	sigprocmask (SIG_SETMASK, &prev, 0);
		2037	#endif
		2038	}
		2039
1657	ev_start (EV_A_ (W)w, 1);	2040	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);	2041	wlist_add (&signals [w->signum - 1].head, (WL)w);
1660		2042
1661	if (!((WL)w)->next)	2043	if (!((WL)w)->next)
1662	{	2044	{
1663	#if _WIN32	2045	#if _WIN32
1664	signal (w->signum, sighandler);	2046	signal (w->signum, ev_sighandler);
1665	#else	2047	#else
1666	struct sigaction sa;	2048	struct sigaction sa;
1667	sa.sa_handler = sighandler;	2049	sa.sa_handler = ev_sighandler;
1668	sigfillset (&sa.sa_mask);	2050	sigfillset (&sa.sa_mask);
1669	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2051	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1670	sigaction (w->signum, &sa, 0);	2052	sigaction (w->signum, &sa, 0);
1671	#endif	2053	#endif
1672	}	2054	}
1673	}	2055	}
1674		2056
1675	void	2057	void noinline
1676	ev_signal_stop (EV_P_ ev_signal *w)	2058	ev_signal_stop (EV_P_ ev_signal *w)
1677	{	2059	{
1678	ev_clear_pending (EV_A_ (W)w);	2060	clear_pending (EV_A_ (W)w);
1679	if (expect_false (!ev_is_active (w)))	2061	if (expect_false (!ev_is_active (w)))
1680	return;	2062	return;
1681		2063
1682	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2064	wlist_del (&signals [w->signum - 1].head, (WL)w);
1683	ev_stop (EV_A_ (W)w);	2065	ev_stop (EV_A_ (W)w);
1684		2066
1685	if (!signals [w->signum - 1].head)	2067	if (!signals [w->signum - 1].head)
1686	signal (w->signum, SIG_DFL);	2068	signal (w->signum, SIG_DFL);
1687	}	2069	}
…		…
1694	#endif	2076	#endif
1695	if (expect_false (ev_is_active (w)))	2077	if (expect_false (ev_is_active (w)))
1696	return;	2078	return;
1697		2079
1698	ev_start (EV_A_ (W)w, 1);	2080	ev_start (EV_A_ (W)w, 1);
1699	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2081	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1700	}	2082	}
1701		2083
1702	void	2084	void
1703	ev_child_stop (EV_P_ ev_child *w)	2085	ev_child_stop (EV_P_ ev_child *w)
1704	{	2086	{
1705	ev_clear_pending (EV_A_ (W)w);	2087	clear_pending (EV_A_ (W)w);
1706	if (expect_false (!ev_is_active (w)))	2088	if (expect_false (!ev_is_active (w)))
1707	return;	2089	return;
1708		2090
1709	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2091	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1710	ev_stop (EV_A_ (W)w);	2092	ev_stop (EV_A_ (W)w);
1711	}	2093	}
1712		2094
1713	#if EV_STAT_ENABLE	2095	#if EV_STAT_ENABLE
1714		2096
…		…
1718	# endif	2100	# endif
1719		2101
1720	#define DEF_STAT_INTERVAL 5.0074891	2102	#define DEF_STAT_INTERVAL 5.0074891
1721	#define MIN_STAT_INTERVAL 0.1074891	2103	#define MIN_STAT_INTERVAL 0.1074891
1722		2104
1723	void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	2105	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1724		2106
1725	#if EV_USE_INOTIFY	2107	#if EV_USE_INOTIFY
1726	# define EV_INOTIFY_BUFSIZE 8192	2108	# define EV_INOTIFY_BUFSIZE 8192
1727		2109
1728	static void noinline	2110	static void noinline
…		…
1733	if (w->wd < 0)	2115	if (w->wd < 0)
1734	{	2116	{
1735	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2117	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1736		2118
1737	/* monitor some parent directory for speedup hints */	2119	/* monitor some parent directory for speedup hints */
		2120	/* note that exceeding the hardcoded limit is not a correctness issue, */
		2121	/* but an efficiency issue only */
1738	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2122	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1739	{	2123	{
1740	char path [4096];	2124	char path [4096];
1741	strcpy (path, w->path);	2125	strcpy (path, w->path);
1742		2126
…		…
1879	w->attr.st_nlink = 0;	2263	w->attr.st_nlink = 0;
1880	else if (!w->attr.st_nlink)	2264	else if (!w->attr.st_nlink)
1881	w->attr.st_nlink = 1;	2265	w->attr.st_nlink = 1;
1882	}	2266	}
1883		2267
1884	void noinline	2268	static void noinline
1885	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2269	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1886	{	2270	{
1887	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	2271	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1888		2272
1889	/* we copy this here each the time so that */	2273	/* we copy this here each the time so that */
…		…
1946	}	2330	}
1947		2331
1948	void	2332	void
1949	ev_stat_stop (EV_P_ ev_stat *w)	2333	ev_stat_stop (EV_P_ ev_stat *w)
1950	{	2334	{
1951	ev_clear_pending (EV_A_ (W)w);	2335	clear_pending (EV_A_ (W)w);
1952	if (expect_false (!ev_is_active (w)))	2336	if (expect_false (!ev_is_active (w)))
1953	return;	2337	return;
1954		2338
1955	#if EV_USE_INOTIFY	2339	#if EV_USE_INOTIFY
1956	infy_del (EV_A_ w);	2340	infy_del (EV_A_ w);
…		…
1959		2343
1960	ev_stop (EV_A_ (W)w);	2344	ev_stop (EV_A_ (W)w);
1961	}	2345	}
1962	#endif	2346	#endif
1963		2347
		2348	#if EV_IDLE_ENABLE
1964	void	2349	void
1965	ev_idle_start (EV_P_ ev_idle *w)	2350	ev_idle_start (EV_P_ ev_idle *w)
1966	{	2351	{
1967	if (expect_false (ev_is_active (w)))	2352	if (expect_false (ev_is_active (w)))
1968	return;	2353	return;
1969		2354
		2355	pri_adjust (EV_A_ (W)w);
		2356
		2357	{
		2358	int active = ++idlecnt [ABSPRI (w)];
		2359
		2360	++idleall;
1970	ev_start (EV_A_ (W)w, ++idlecnt);	2361	ev_start (EV_A_ (W)w, active);
		2362
1971	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2363	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1972	idles [idlecnt - 1] = w;	2364	idles [ABSPRI (w)][active - 1] = w;
		2365	}
1973	}	2366	}
1974		2367
1975	void	2368	void
1976	ev_idle_stop (EV_P_ ev_idle *w)	2369	ev_idle_stop (EV_P_ ev_idle *w)
1977	{	2370	{
1978	ev_clear_pending (EV_A_ (W)w);	2371	clear_pending (EV_A_ (W)w);
1979	if (expect_false (!ev_is_active (w)))	2372	if (expect_false (!ev_is_active (w)))
1980	return;	2373	return;
1981		2374
1982	{	2375	{
1983	int active = ((W)w)->active;	2376	int active = ev_active (w);
1984	idles [active - 1] = idles [--idlecnt];	2377
1985	((W)idles [active - 1])->active = active;	2378	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2379	ev_active (idles [ABSPRI (w)][active - 1]) = active;
		2380
		2381	ev_stop (EV_A_ (W)w);
		2382	--idleall;
1986	}	2383	}
1987
1988	ev_stop (EV_A_ (W)w);
1989	}	2384	}
		2385	#endif
1990		2386
1991	void	2387	void
1992	ev_prepare_start (EV_P_ ev_prepare *w)	2388	ev_prepare_start (EV_P_ ev_prepare *w)
1993	{	2389	{
1994	if (expect_false (ev_is_active (w)))	2390	if (expect_false (ev_is_active (w)))
…		…
2000	}	2396	}
2001		2397
2002	void	2398	void
2003	ev_prepare_stop (EV_P_ ev_prepare *w)	2399	ev_prepare_stop (EV_P_ ev_prepare *w)
2004	{	2400	{
2005	ev_clear_pending (EV_A_ (W)w);	2401	clear_pending (EV_A_ (W)w);
2006	if (expect_false (!ev_is_active (w)))	2402	if (expect_false (!ev_is_active (w)))
2007	return;	2403	return;
2008		2404
2009	{	2405	{
2010	int active = ((W)w)->active;	2406	int active = ev_active (w);
		2407
2011	prepares [active - 1] = prepares [--preparecnt];	2408	prepares [active - 1] = prepares [--preparecnt];
2012	((W)prepares [active - 1])->active = active;	2409	ev_active (prepares [active - 1]) = active;
2013	}	2410	}
2014		2411
2015	ev_stop (EV_A_ (W)w);	2412	ev_stop (EV_A_ (W)w);
2016	}	2413	}
2017		2414
…		…
2027	}	2424	}
2028		2425
2029	void	2426	void
2030	ev_check_stop (EV_P_ ev_check *w)	2427	ev_check_stop (EV_P_ ev_check *w)
2031	{	2428	{
2032	ev_clear_pending (EV_A_ (W)w);	2429	clear_pending (EV_A_ (W)w);
2033	if (expect_false (!ev_is_active (w)))	2430	if (expect_false (!ev_is_active (w)))
2034	return;	2431	return;
2035		2432
2036	{	2433	{
2037	int active = ((W)w)->active;	2434	int active = ev_active (w);
		2435
2038	checks [active - 1] = checks [--checkcnt];	2436	checks [active - 1] = checks [--checkcnt];
2039	((W)checks [active - 1])->active = active;	2437	ev_active (checks [active - 1]) = active;
2040	}	2438	}
2041		2439
2042	ev_stop (EV_A_ (W)w);	2440	ev_stop (EV_A_ (W)w);
2043	}	2441	}
2044		2442
2045	#if EV_EMBED_ENABLE	2443	#if EV_EMBED_ENABLE
2046	void noinline	2444	void noinline
2047	ev_embed_sweep (EV_P_ ev_embed *w)	2445	ev_embed_sweep (EV_P_ ev_embed *w)
2048	{	2446	{
2049	ev_loop (w->loop, EVLOOP_NONBLOCK);	2447	ev_loop (w->other, EVLOOP_NONBLOCK);
2050	}	2448	}
2051		2449
2052	static void	2450	static void
2053	embed_cb (EV_P_ ev_io *io, int revents)	2451	embed_io_cb (EV_P_ ev_io *io, int revents)
2054	{	2452	{
2055	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2453	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2056		2454
2057	if (ev_cb (w))	2455	if (ev_cb (w))
2058	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2456	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2059	else	2457	else
2060	ev_embed_sweep (loop, w);	2458	ev_loop (w->other, EVLOOP_NONBLOCK);
2061	}	2459	}
		2460
		2461	static void
		2462	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2463	{
		2464	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2465
		2466	{
		2467	struct ev_loop *loop = w->other;
		2468
		2469	while (fdchangecnt)
		2470	{
		2471	fd_reify (EV_A);
		2472	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2473	}
		2474	}
		2475	}
		2476
		2477	#if 0
		2478	static void
		2479	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2480	{
		2481	ev_idle_stop (EV_A_ idle);
		2482	}
		2483	#endif
2062		2484
2063	void	2485	void
2064	ev_embed_start (EV_P_ ev_embed *w)	2486	ev_embed_start (EV_P_ ev_embed *w)
2065	{	2487	{
2066	if (expect_false (ev_is_active (w)))	2488	if (expect_false (ev_is_active (w)))
2067	return;	2489	return;
2068		2490
2069	{	2491	{
2070	struct ev_loop *loop = w->loop;	2492	struct ev_loop *loop = w->other;
2071	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2493	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2072	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2494	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2073	}	2495	}
2074		2496
2075	ev_set_priority (&w->io, ev_priority (w));	2497	ev_set_priority (&w->io, ev_priority (w));
2076	ev_io_start (EV_A_ &w->io);	2498	ev_io_start (EV_A_ &w->io);
2077		2499
		2500	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2501	ev_set_priority (&w->prepare, EV_MINPRI);
		2502	ev_prepare_start (EV_A_ &w->prepare);
		2503
		2504	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2505
2078	ev_start (EV_A_ (W)w, 1);	2506	ev_start (EV_A_ (W)w, 1);
2079	}	2507	}
2080		2508
2081	void	2509	void
2082	ev_embed_stop (EV_P_ ev_embed *w)	2510	ev_embed_stop (EV_P_ ev_embed *w)
2083	{	2511	{
2084	ev_clear_pending (EV_A_ (W)w);	2512	clear_pending (EV_A_ (W)w);
2085	if (expect_false (!ev_is_active (w)))	2513	if (expect_false (!ev_is_active (w)))
2086	return;	2514	return;
2087		2515
2088	ev_io_stop (EV_A_ &w->io);	2516	ev_io_stop (EV_A_ &w->io);
		2517	ev_prepare_stop (EV_A_ &w->prepare);
2089		2518
2090	ev_stop (EV_A_ (W)w);	2519	ev_stop (EV_A_ (W)w);
2091	}	2520	}
2092	#endif	2521	#endif
2093		2522
…		…
2104	}	2533	}
2105		2534
2106	void	2535	void
2107	ev_fork_stop (EV_P_ ev_fork *w)	2536	ev_fork_stop (EV_P_ ev_fork *w)
2108	{	2537	{
2109	ev_clear_pending (EV_A_ (W)w);	2538	clear_pending (EV_A_ (W)w);
2110	if (expect_false (!ev_is_active (w)))	2539	if (expect_false (!ev_is_active (w)))
2111	return;	2540	return;
2112		2541
2113	{	2542	{
2114	int active = ((W)w)->active;	2543	int active = ev_active (w);
		2544
2115	forks [active - 1] = forks [--forkcnt];	2545	forks [active - 1] = forks [--forkcnt];
2116	((W)forks [active - 1])->active = active;	2546	ev_active (forks [active - 1]) = active;
2117	}	2547	}
2118		2548
2119	ev_stop (EV_A_ (W)w);	2549	ev_stop (EV_A_ (W)w);
		2550	}
		2551	#endif
		2552
		2553	#if EV_ASYNC_ENABLE
		2554	void
		2555	ev_async_start (EV_P_ ev_async *w)
		2556	{
		2557	if (expect_false (ev_is_active (w)))
		2558	return;
		2559
		2560	evpipe_init (EV_A);
		2561
		2562	ev_start (EV_A_ (W)w, ++asynccnt);
		2563	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2564	asyncs [asynccnt - 1] = w;
		2565	}
		2566
		2567	void
		2568	ev_async_stop (EV_P_ ev_async *w)
		2569	{
		2570	clear_pending (EV_A_ (W)w);
		2571	if (expect_false (!ev_is_active (w)))
		2572	return;
		2573
		2574	{
		2575	int active = ev_active (w);
		2576
		2577	asyncs [active - 1] = asyncs [--asynccnt];
		2578	ev_active (asyncs [active - 1]) = active;
		2579	}
		2580
		2581	ev_stop (EV_A_ (W)w);
		2582	}
		2583
		2584	void
		2585	ev_async_send (EV_P_ ev_async *w)
		2586	{
		2587	w->sent = 1;
		2588	evpipe_write (EV_A_ &gotasync);
2120	}	2589	}
2121	#endif	2590	#endif
2122		2591
2123	/*****************************************************************************/	2592	/*****************************************************************************/
2124		2593
…		…
2182	ev_timer_set (&once->to, timeout, 0.);	2651	ev_timer_set (&once->to, timeout, 0.);
2183	ev_timer_start (EV_A_ &once->to);	2652	ev_timer_start (EV_A_ &once->to);
2184	}	2653	}
2185	}	2654	}
2186		2655
		2656	#if EV_MULTIPLICITY
		2657	#include "ev_wrap.h"
		2658	#endif
		2659
2187	#ifdef __cplusplus	2660	#ifdef __cplusplus
2188	}	2661	}
2189	#endif	2662	#endif
2190		2663

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