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

Comparing libev/ev.c (file contents):
Revision 1.168 by root, Sat Dec 8 14:12:07 2007 UTC vs.
Revision 1.219 by root, Wed Apr 2 10:55:39 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
51	# ifndef EV_USE_MONOTONIC	59	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	60	# define EV_USE_MONOTONIC 0
53	# endif	61	# endif
54	# ifndef EV_USE_REALTIME	62	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	63	# define EV_USE_REALTIME 0
		64	# endif
		65	# endif
		66
		67	# ifndef EV_USE_NANOSLEEP
		68	# if HAVE_NANOSLEEP
		69	# define EV_USE_NANOSLEEP 1
		70	# else
		71	# define EV_USE_NANOSLEEP 0
56	# endif	72	# endif
57	# endif	73	# endif
58		74
59	# ifndef EV_USE_SELECT	75	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	76	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
146		162
147	#ifndef EV_USE_REALTIME	163	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	164	# define EV_USE_REALTIME 0
149	#endif	165	#endif
150		166
		167	#ifndef EV_USE_NANOSLEEP
		168	# define EV_USE_NANOSLEEP 0
		169	#endif
		170
151	#ifndef EV_USE_SELECT	171	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	172	# define EV_USE_SELECT 1
153	#endif	173	#endif
154		174
155	#ifndef EV_USE_POLL	175	#ifndef EV_USE_POLL
…		…
202	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
203	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
204	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
205	#endif	225	#endif
206		226
		227	#if !EV_STAT_ENABLE
		228	# undef EV_USE_INOTIFY
		229	# define EV_USE_INOTIFY 0
		230	#endif
		231
		232	#if !EV_USE_NANOSLEEP
		233	# ifndef _WIN32
		234	# include <sys/select.h>
		235	# endif
		236	#endif
		237
		238	#if EV_USE_INOTIFY
		239	# include <sys/inotify.h>
		240	#endif
		241
207	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
208	# include <winsock.h>	243	# include <winsock.h>
209	#endif	244	#endif
210		245
211	#if !EV_STAT_ENABLE
212	# define EV_USE_INOTIFY 0
213	#endif
214
215	#if EV_USE_INOTIFY
216	# include <sys/inotify.h>
217	#endif
218
219	/**/	246	/**/
		247
		248	/*
		249	* This is used to avoid floating point rounding problems.
		250	* It is added to ev_rt_now when scheduling periodics
		251	* to ensure progress, time-wise, even when rounding
		252	* errors are against us.
		253	* This value is good at least till the year 4000.
		254	* Better solutions welcome.
		255	*/
		256	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		257
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	258	#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) */	259	#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 */	260	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds, TODO */
224		261
225	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# 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))	264	# 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	265	#else
236	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
237	# define inline_speed static
238	# define inline_size static
239	# define noinline	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
240	#endif	271	#endif
241		272
242	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
243	#define expect_true(expr) expect ((expr) != 0, 1)	274	#define expect_true(expr) expect ((expr) != 0, 1)
		275	#define inline_size static inline
		276
		277	#if EV_MINIMAL
		278	# define inline_speed static noinline
		279	#else
		280	# define inline_speed static inline
		281	#endif
244		282
245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247		285
248	#define EMPTY /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
…		…
250		288
251	typedef ev_watcher *W;	289	typedef ev_watcher *W;
252	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
253	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
254		292
		293	#if EV_USE_MONOTONIC
		294	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		295	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
256		298
257	#ifdef _WIN32	299	#ifdef _WIN32
258	# include "ev_win32.c"	300	# include "ev_win32.c"
259	#endif	301	#endif
260		302
…		…
396	{	438	{
397	return ev_rt_now;	439	return ev_rt_now;
398	}	440	}
399	#endif	441	#endif
400		442
		443	void
		444	ev_sleep (ev_tstamp delay)
		445	{
		446	if (delay > 0.)
		447	{
		448	#if EV_USE_NANOSLEEP
		449	struct timespec ts;
		450
		451	ts.tv_sec = (time_t)delay;
		452	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		453
		454	nanosleep (&ts, 0);
		455	#elif defined(_WIN32)
		456	Sleep ((unsigned long)(delay * 1e3));
		457	#else
		458	struct timeval tv;
		459
		460	tv.tv_sec = (time_t)delay;
		461	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		462
		463	select (0, 0, 0, 0, &tv);
		464	#endif
		465	}
		466	}
		467
		468	/*****************************************************************************/
		469
401	int inline_size	470	int inline_size
402	array_nextsize (int elem, int cur, int cnt)	471	array_nextsize (int elem, int cur, int cnt)
403	{	472	{
404	int ncur = cur + 1;	473	int ncur = cur + 1;
405		474
…		…
417	}	486	}
418		487
419	return ncur;	488	return ncur;
420	}	489	}
421		490
422	inline_speed void *	491	static noinline void *
423	array_realloc (int elem, void base, int cur, int cnt)	492	array_realloc (int elem, void base, int cur, int cnt)
424	{	493	{
425	cur = array_nextsize (elem, cur, cnt);	494	cur = array_nextsize (elem, cur, cnt);
426	return ev_realloc (base, elem * *cur);	495	return ev_realloc (base, elem * *cur);
427	}	496	}
…		…
452		521
453	void noinline	522	void noinline
454	ev_feed_event (EV_P_ void *w, int revents)	523	ev_feed_event (EV_P_ void *w, int revents)
455	{	524	{
456	W w_ = (W)w;	525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
457		527
458	if (expect_false (w_->pending))	528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events \|= revents;
		530	else
459	{	531	{
		532	w_->pending = ++pendingcnt [pri];
		533	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		534	pendings [pri][w_->pending - 1].w = w_;
460	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	535	pendings [pri][w_->pending - 1].events = revents;
461	return;
462	}	536	}
463
464	w_->pending = ++pendingcnt [ABSPRI (w_)];
465	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
466	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
467	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
468	}	537	}
469		538
470	void inline_size	539	void inline_speed
471	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
472	{	541	{
473	int i;	542	int i;
474		543
475	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
522	{	591	{
523	int fd = fdchanges [i];	592	int fd = fdchanges [i];
524	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
525	ev_io *w;	594	ev_io *w;
526		595
527	int events = 0;	596	unsigned char events = 0;
528		597
529	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	598	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
530	events \|= w->events;	599	events \|= (unsigned char)w->events;
531		600
532	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
533	if (events)	602	if (events)
534	{	603	{
535	unsigned long argp;	604	unsigned long argp;
		605	#ifdef EV_FD_TO_WIN32_HANDLE
		606	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		607	#else
536	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
537	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	610	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
538	}	611	}
539	#endif	612	#endif
540		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
541	anfd->reify = 0;	618	anfd->reify = 0;
542
543	backend_modify (EV_A_ fd, anfd->events, events);
544	anfd->events = events;	619	anfd->events = events;
		620
		621	if (o_events != events \|\| o_reify & EV_IOFDSET)
		622	backend_modify (EV_A_ fd, o_events, events);
		623	}
545	}	624	}
546		625
547	fdchangecnt = 0;	626	fdchangecnt = 0;
548	}	627	}
549		628
550	void inline_size	629	void inline_size
551	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
552	{	631	{
553	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
554	return;
555
556	anfds [fd].reify = 1;	633	anfds [fd].reify \|= flags;
557		634
		635	if (expect_true (!reify))
		636	{
558	++fdchangecnt;	637	++fdchangecnt;
559	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
560	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
561	}	641	}
562		642
563	void inline_speed	643	void inline_speed
564	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
565	{	645	{
…		…
616		696
617	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
618	if (anfds [fd].events)	698	if (anfds [fd].events)
619	{	699	{
620	anfds [fd].events = 0;	700	anfds [fd].events = 0;
621	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET \| 1);
622	}	702	}
623	}	703	}
624		704
625	/*****************************************************************************/	705	/*****************************************************************************/
626		706
627	void inline_speed	707	void inline_speed
628	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
629	{	709	{
630	WT w = heap [k];	710	WT w = heap [k];
631		711
632	while (k && heap [k >> 1]->at > w->at)	712	while (k)
633	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
634	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
635	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
636	k >>= 1;	721	k = p;
637	}	722	}
638		723
639	heap [k] = w;	724	heap [k] = w;
640	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
641
642	}	726	}
643		727
644	void inline_speed	728	void inline_speed
645	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
646	{	730	{
647	WT w = heap [k];	731	WT w = heap [k];
648		732
649	while (k < (N >> 1))	733	for (;;)
650	{	734	{
651	int j = k << 1;	735	int c = (k << 1) + 1;
652		736
653	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
654	++j;
655
656	if (w->at <= heap [j]->at)
657	break;	738	break;
658		739
		740	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		741	? 1 : 0;
		742
		743	if (w->at <= heap [c]->at)
		744	break;
		745
659	heap [k] = heap [j];	746	heap [k] = heap [c];
660	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
661	k = j;	749	k = c;
662	}	750	}
663		751
664	heap [k] = w;	752	heap [k] = w;
665	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
666	}	754	}
…		…
675	/*****************************************************************************/	763	/*****************************************************************************/
676		764
677	typedef struct	765	typedef struct
678	{	766	{
679	WL head;	767	WL head;
680	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
681	} ANSIG;	769	} ANSIG;
682		770
683	static ANSIG *signals;	771	static ANSIG *signals;
684	static int signalmax;	772	static int signalmax;
685		773
686	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
687	static sig_atomic_t volatile gotsig;
688	static ev_io sigev;
689		775
690	void inline_size	776	void inline_size
691	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
692	{	778	{
693	while (count--)	779	while (count--)
…		…
697		783
698	++base;	784	++base;
699	}	785	}
700	}	786	}
701		787
702	static void	788	/*****************************************************************************/
703	sighandler (int signum)
704	{
705	#if _WIN32
706	signal (signum, sighandler);
707	#endif
708		789
709	signals [signum - 1].gotsig = 1;
710
711	if (!gotsig)
712	{
713	int old_errno = errno;
714	gotsig = 1;
715	write (sigpipe [1], &signum, 1);
716	errno = old_errno;
717	}
718	}
719
720	void noinline
721	ev_feed_signal_event (EV_P_ int signum)
722	{
723	WL w;
724
725	#if EV_MULTIPLICITY
726	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
727	#endif
728
729	--signum;
730
731	if (signum < 0 \|\| signum >= signalmax)
732	return;
733
734	signals [signum].gotsig = 0;
735
736	for (w = signals [signum].head; w; w = w->next)
737	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
738	}
739
740	static void
741	sigcb (EV_P_ ev_io *iow, int revents)
742	{
743	int signum;
744
745	read (sigpipe [0], &revents, 1);
746	gotsig = 0;
747
748	for (signum = signalmax; signum--; )
749	if (signals [signum].gotsig)
750	ev_feed_signal_event (EV_A_ signum + 1);
751	}
752
753	void inline_size	790	void inline_speed
754	fd_intern (int fd)	791	fd_intern (int fd)
755	{	792	{
756	#ifdef _WIN32	793	#ifdef _WIN32
757	int arg = 1;	794	int arg = 1;
758	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	795	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
761	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
762	#endif	799	#endif
763	}	800	}
764		801
765	static void noinline	802	static void noinline
766	siginit (EV_P)	803	evpipe_init (EV_P)
767	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
768	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
769	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
770		812
771	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
772	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
773	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* watcher should not keep loop alive */
		816	}
		817	}
		818
		819	void inline_size
		820	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		821	{
		822	if (!*flag)
		823	{
		824	int old_errno = errno; /* save errno because write might clobber it */
		825
		826	*flag = 1;
		827	write (evpipe [1], &old_errno, 1);
		828
		829	errno = old_errno;
		830	}
		831	}
		832
		833	static void
		834	pipecb (EV_P_ ev_io *iow, int revents)
		835	{
		836	{
		837	int dummy;
		838	read (evpipe [0], &dummy, 1);
		839	}
		840
		841	if (gotsig && ev_is_default_loop (EV_A))
		842	{
		843	int signum;
		844	gotsig = 0;
		845
		846	for (signum = signalmax; signum--; )
		847	if (signals [signum].gotsig)
		848	ev_feed_signal_event (EV_A_ signum + 1);
		849	}
		850
		851	#if EV_ASYNC_ENABLE
		852	if (gotasync)
		853	{
		854	int i;
		855	gotasync = 0;
		856
		857	for (i = asynccnt; i--; )
		858	if (asyncs [i]->sent)
		859	{
		860	asyncs [i]->sent = 0;
		861	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		862	}
		863	}
		864	#endif
774	}	865	}
775		866
776	/*****************************************************************************/	867	/*****************************************************************************/
777		868
		869	static void
		870	ev_sighandler (int signum)
		871	{
		872	#if EV_MULTIPLICITY
		873	struct ev_loop *loop = &default_loop_struct;
		874	#endif
		875
		876	#if _WIN32
		877	signal (signum, ev_sighandler);
		878	#endif
		879
		880	signals [signum - 1].gotsig = 1;
		881	evpipe_write (EV_A_ &gotsig);
		882	}
		883
		884	void noinline
		885	ev_feed_signal_event (EV_P_ int signum)
		886	{
		887	WL w;
		888
		889	#if EV_MULTIPLICITY
		890	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		891	#endif
		892
		893	--signum;
		894
		895	if (signum < 0 \|\| signum >= signalmax)
		896	return;
		897
		898	signals [signum].gotsig = 0;
		899
		900	for (w = signals [signum].head; w; w = w->next)
		901	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		902	}
		903
		904	/*****************************************************************************/
		905
778	static ev_child *childs [EV_PID_HASHSIZE];	906	static WL childs [EV_PID_HASHSIZE];
779		907
780	#ifndef _WIN32	908	#ifndef _WIN32
781		909
782	static ev_signal childev;	910	static ev_signal childev;
783		911
		912	#ifndef WIFCONTINUED
		913	# define WIFCONTINUED(status) 0
		914	#endif
		915
784	void inline_speed	916	void inline_speed
785	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	917	child_reap (EV_P_ int chain, int pid, int status)
786	{	918	{
787	ev_child *w;	919	ev_child *w;
		920	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
788		921
789	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	922	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		923	{
790	if (w->pid == pid \|\| !w->pid)	924	if ((w->pid == pid \|\| !w->pid)
		925	&& (!traced \|\| (w->flags & 1)))
791	{	926	{
792	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	927	ev_set_priority (w, EV_MAXPRI); /* need to do it now, this must be the same prio as the signal watcher itself */
793	w->rpid = pid;	928	w->rpid = pid;
794	w->rstatus = status;	929	w->rstatus = status;
795	ev_feed_event (EV_A_ (W)w, EV_CHILD);	930	ev_feed_event (EV_A_ (W)w, EV_CHILD);
796	}	931	}
		932	}
797	}	933	}
798		934
799	#ifndef WCONTINUED	935	#ifndef WCONTINUED
800	# define WCONTINUED 0	936	# define WCONTINUED 0
801	#endif	937	#endif
…		…
810	if (!WCONTINUED	946	if (!WCONTINUED
811	\|\| errno != EINVAL	947	\|\| errno != EINVAL
812	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	948	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
813	return;	949	return;
814		950
815	/* make sure we are called again until all childs have been reaped */	951	/* make sure we are called again until all children have been reaped */
816	/* we need to do it this way so that the callback gets called before we continue */	952	/* we need to do it this way so that the callback gets called before we continue */
817	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	953	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
818		954
819	child_reap (EV_A_ sw, pid, pid, status);	955	child_reap (EV_A_ pid, pid, status);
820	if (EV_PID_HASHSIZE > 1)	956	if (EV_PID_HASHSIZE > 1)
821	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	957	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
822	}	958	}
823		959
824	#endif	960	#endif
825		961
826	/*****************************************************************************/	962	/*****************************************************************************/
…		…
898	}	1034	}
899		1035
900	unsigned int	1036	unsigned int
901	ev_embeddable_backends (void)	1037	ev_embeddable_backends (void)
902	{	1038	{
903	return EVBACKEND_EPOLL	1039	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
904	\| EVBACKEND_KQUEUE	1040
905	\| EVBACKEND_PORT;	1041	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1042	/* please fix it and tell me how to detect the fix */
		1043	flags &= ~EVBACKEND_EPOLL;
		1044
		1045	return flags;
906	}	1046	}
907		1047
908	unsigned int	1048	unsigned int
909	ev_backend (EV_P)	1049	ev_backend (EV_P)
910	{	1050	{
…		…
913		1053
914	unsigned int	1054	unsigned int
915	ev_loop_count (EV_P)	1055	ev_loop_count (EV_P)
916	{	1056	{
917	return loop_count;	1057	return loop_count;
		1058	}
		1059
		1060	void
		1061	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1062	{
		1063	io_blocktime = interval;
		1064	}
		1065
		1066	void
		1067	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1068	{
		1069	timeout_blocktime = interval;
918	}	1070	}
919		1071
920	static void noinline	1072	static void noinline
921	loop_init (EV_P_ unsigned int flags)	1073	loop_init (EV_P_ unsigned int flags)
922	{	1074	{
…		…
928	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1080	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
929	have_monotonic = 1;	1081	have_monotonic = 1;
930	}	1082	}
931	#endif	1083	#endif
932		1084
933	ev_rt_now = ev_time ();	1085	ev_rt_now = ev_time ();
934	mn_now = get_clock ();	1086	mn_now = get_clock ();
935	now_floor = mn_now;	1087	now_floor = mn_now;
936	rtmn_diff = ev_rt_now - mn_now;	1088	rtmn_diff = ev_rt_now - mn_now;
		1089
		1090	io_blocktime = 0.;
		1091	timeout_blocktime = 0.;
		1092	backend = 0;
		1093	backend_fd = -1;
		1094	gotasync = 0;
		1095	#if EV_USE_INOTIFY
		1096	fs_fd = -2;
		1097	#endif
937		1098
938	/* pid check not overridable via env */	1099	/* pid check not overridable via env */
939	#ifndef _WIN32	1100	#ifndef _WIN32
940	if (flags & EVFLAG_FORKCHECK)	1101	if (flags & EVFLAG_FORKCHECK)
941	curpid = getpid ();	1102	curpid = getpid ();
…		…
947	flags = atoi (getenv ("LIBEV_FLAGS"));	1108	flags = atoi (getenv ("LIBEV_FLAGS"));
948		1109
949	if (!(flags & 0x0000ffffUL))	1110	if (!(flags & 0x0000ffffUL))
950	flags \|= ev_recommended_backends ();	1111	flags \|= ev_recommended_backends ();
951		1112
952	backend = 0;
953	backend_fd = -1;
954	#if EV_USE_INOTIFY
955	fs_fd = -2;
956	#endif
957
958	#if EV_USE_PORT	1113	#if EV_USE_PORT
959	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1114	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
960	#endif	1115	#endif
961	#if EV_USE_KQUEUE	1116	#if EV_USE_KQUEUE
962	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1117	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
969	#endif	1124	#endif
970	#if EV_USE_SELECT	1125	#if EV_USE_SELECT
971	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1126	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
972	#endif	1127	#endif
973		1128
974	ev_init (&sigev, sigcb);	1129	ev_init (&pipeev, pipecb);
975	ev_set_priority (&sigev, EV_MAXPRI);	1130	ev_set_priority (&pipeev, EV_MAXPRI);
976	}	1131	}
977	}	1132	}
978		1133
979	static void noinline	1134	static void noinline
980	loop_destroy (EV_P)	1135	loop_destroy (EV_P)
981	{	1136	{
982	int i;	1137	int i;
		1138
		1139	if (ev_is_active (&pipeev))
		1140	{
		1141	ev_ref (EV_A); /* signal watcher */
		1142	ev_io_stop (EV_A_ &pipeev);
		1143
		1144	close (evpipe [0]); evpipe [0] = 0;
		1145	close (evpipe [1]); evpipe [1] = 0;
		1146	}
983		1147
984	#if EV_USE_INOTIFY	1148	#if EV_USE_INOTIFY
985	if (fs_fd >= 0)	1149	if (fs_fd >= 0)
986	close (fs_fd);	1150	close (fs_fd);
987	#endif	1151	#endif
…		…
1010	array_free (pending, [i]);	1174	array_free (pending, [i]);
1011	#if EV_IDLE_ENABLE	1175	#if EV_IDLE_ENABLE
1012	array_free (idle, [i]);	1176	array_free (idle, [i]);
1013	#endif	1177	#endif
1014	}	1178	}
		1179
		1180	ev_free (anfds); anfdmax = 0;
1015		1181
1016	/* have to use the microsoft-never-gets-it-right macro */	1182	/* have to use the microsoft-never-gets-it-right macro */
1017	array_free (fdchange, EMPTY);	1183	array_free (fdchange, EMPTY);
1018	array_free (timer, EMPTY);	1184	array_free (timer, EMPTY);
1019	#if EV_PERIODIC_ENABLE	1185	#if EV_PERIODIC_ENABLE
1020	array_free (periodic, EMPTY);	1186	array_free (periodic, EMPTY);
1021	#endif	1187	#endif
		1188	#if EV_FORK_ENABLE
		1189	array_free (fork, EMPTY);
		1190	#endif
1022	array_free (prepare, EMPTY);	1191	array_free (prepare, EMPTY);
1023	array_free (check, EMPTY);	1192	array_free (check, EMPTY);
		1193	#if EV_ASYNC_ENABLE
		1194	array_free (async, EMPTY);
		1195	#endif
1024		1196
1025	backend = 0;	1197	backend = 0;
1026	}	1198	}
1027		1199
1028	void inline_size infy_fork (EV_P);	1200	void inline_size infy_fork (EV_P);
…		…
1041	#endif	1213	#endif
1042	#if EV_USE_INOTIFY	1214	#if EV_USE_INOTIFY
1043	infy_fork (EV_A);	1215	infy_fork (EV_A);
1044	#endif	1216	#endif
1045		1217
1046	if (ev_is_active (&sigev))	1218	if (ev_is_active (&pipeev))
1047	{	1219	{
1048	/* default loop */	1220	/* this "locks" the handlers against writing to the pipe */
		1221	/* while we modify the fd vars */
		1222	gotsig = 1;
		1223	#if EV_ASYNC_ENABLE
		1224	gotasync = 1;
		1225	#endif
1049		1226
1050	ev_ref (EV_A);	1227	ev_ref (EV_A);
1051	ev_io_stop (EV_A_ &sigev);	1228	ev_io_stop (EV_A_ &pipeev);
1052	close (sigpipe [0]);	1229	close (evpipe [0]);
1053	close (sigpipe [1]);	1230	close (evpipe [1]);
1054		1231
1055	while (pipe (sigpipe))
1056	syserr ("(libev) error creating pipe");
1057
1058	siginit (EV_A);	1232	evpipe_init (EV_A);
		1233	/* now iterate over everything, in case we missed something */
		1234	pipecb (EV_A_ &pipeev, EV_READ);
1059	}	1235	}
1060		1236
1061	postfork = 0;	1237	postfork = 0;
1062	}	1238	}
1063		1239
…		…
1085	}	1261	}
1086		1262
1087	void	1263	void
1088	ev_loop_fork (EV_P)	1264	ev_loop_fork (EV_P)
1089	{	1265	{
1090	postfork = 1;	1266	postfork = 1; /* must be in line with ev_default_fork */
1091	}	1267	}
1092		1268
1093	#endif	1269	#endif
1094		1270
1095	#if EV_MULTIPLICITY	1271	#if EV_MULTIPLICITY
…		…
1098	#else	1274	#else
1099	int	1275	int
1100	ev_default_loop (unsigned int flags)	1276	ev_default_loop (unsigned int flags)
1101	#endif	1277	#endif
1102	{	1278	{
1103	if (sigpipe [0] == sigpipe [1])
1104	if (pipe (sigpipe))
1105	return 0;
1106
1107	if (!ev_default_loop_ptr)	1279	if (!ev_default_loop_ptr)
1108	{	1280	{
1109	#if EV_MULTIPLICITY	1281	#if EV_MULTIPLICITY
1110	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1282	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1111	#else	1283	#else
…		…
1114		1286
1115	loop_init (EV_A_ flags);	1287	loop_init (EV_A_ flags);
1116		1288
1117	if (ev_backend (EV_A))	1289	if (ev_backend (EV_A))
1118	{	1290	{
1119	siginit (EV_A);
1120
1121	#ifndef _WIN32	1291	#ifndef _WIN32
1122	ev_signal_init (&childev, childcb, SIGCHLD);	1292	ev_signal_init (&childev, childcb, SIGCHLD);
1123	ev_set_priority (&childev, EV_MAXPRI);	1293	ev_set_priority (&childev, EV_MAXPRI);
1124	ev_signal_start (EV_A_ &childev);	1294	ev_signal_start (EV_A_ &childev);
1125	ev_unref (EV_A); /* child watcher should not keep loop alive */	1295	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1142	#ifndef _WIN32	1312	#ifndef _WIN32
1143	ev_ref (EV_A); /* child watcher */	1313	ev_ref (EV_A); /* child watcher */
1144	ev_signal_stop (EV_A_ &childev);	1314	ev_signal_stop (EV_A_ &childev);
1145	#endif	1315	#endif
1146		1316
1147	ev_ref (EV_A); /* signal watcher */
1148	ev_io_stop (EV_A_ &sigev);
1149
1150	close (sigpipe [0]); sigpipe [0] = 0;
1151	close (sigpipe [1]); sigpipe [1] = 0;
1152
1153	loop_destroy (EV_A);	1317	loop_destroy (EV_A);
1154	}	1318	}
1155		1319
1156	void	1320	void
1157	ev_default_fork (void)	1321	ev_default_fork (void)
…		…
1159	#if EV_MULTIPLICITY	1323	#if EV_MULTIPLICITY
1160	struct ev_loop *loop = ev_default_loop_ptr;	1324	struct ev_loop *loop = ev_default_loop_ptr;
1161	#endif	1325	#endif
1162		1326
1163	if (backend)	1327	if (backend)
1164	postfork = 1;	1328	postfork = 1; /* must be in line with ev_loop_fork */
1165	}	1329	}
1166		1330
1167	/*****************************************************************************/	1331	/*****************************************************************************/
1168		1332
1169	void	1333	void
…		…
1195	void inline_size	1359	void inline_size
1196	timers_reify (EV_P)	1360	timers_reify (EV_P)
1197	{	1361	{
1198	while (timercnt && ((WT)timers [0])->at <= mn_now)	1362	while (timercnt && ((WT)timers [0])->at <= mn_now)
1199	{	1363	{
1200	ev_timer *w = timers [0];	1364	ev_timer w = (ev_timer )timers [0];
1201		1365
1202	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/	1366	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1203		1367
1204	/* first reschedule or stop timer */	1368	/* first reschedule or stop timer */
1205	if (w->repeat)	1369	if (w->repeat)
…		…
1208		1372
1209	((WT)w)->at += w->repeat;	1373	((WT)w)->at += w->repeat;
1210	if (((WT)w)->at < mn_now)	1374	if (((WT)w)->at < mn_now)
1211	((WT)w)->at = mn_now;	1375	((WT)w)->at = mn_now;
1212		1376
1213	downheap ((WT *)timers, timercnt, 0);	1377	downheap (timers, timercnt, 0);
1214	}	1378	}
1215	else	1379	else
1216	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1380	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1217		1381
1218	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1382	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1223	void inline_size	1387	void inline_size
1224	periodics_reify (EV_P)	1388	periodics_reify (EV_P)
1225	{	1389	{
1226	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1390	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1227	{	1391	{
1228	ev_periodic *w = periodics [0];	1392	ev_periodic w = (ev_periodic )periodics [0];
1229		1393
1230	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/	1394	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1231		1395
1232	/* first reschedule or stop timer */	1396	/* first reschedule or stop timer */
1233	if (w->reschedule_cb)	1397	if (w->reschedule_cb)
1234	{	1398	{
1235	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1399	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1236	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1400	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1237	downheap ((WT *)periodics, periodiccnt, 0);	1401	downheap (periodics, periodiccnt, 0);
1238	}	1402	}
1239	else if (w->interval)	1403	else if (w->interval)
1240	{	1404	{
1241	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1405	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1406	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1242	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1407	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1243	downheap ((WT *)periodics, periodiccnt, 0);	1408	downheap (periodics, periodiccnt, 0);
1244	}	1409	}
1245	else	1410	else
1246	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1411	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1247		1412
1248	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1413	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1255	int i;	1420	int i;
1256		1421
1257	/* adjust periodics after time jump */	1422	/* adjust periodics after time jump */
1258	for (i = 0; i < periodiccnt; ++i)	1423	for (i = 0; i < periodiccnt; ++i)
1259	{	1424	{
1260	ev_periodic *w = periodics [i];	1425	ev_periodic w = (ev_periodic )periodics [i];
1261		1426
1262	if (w->reschedule_cb)	1427	if (w->reschedule_cb)
1263	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1428	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1264	else if (w->interval)	1429	else if (w->interval)
1265	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1430	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1266	}	1431	}
1267		1432
1268	/* now rebuild the heap */	1433	/* now rebuild the heap */
1269	for (i = periodiccnt >> 1; i--; )	1434	for (i = periodiccnt >> 1; i--; )
1270	downheap ((WT *)periodics, periodiccnt, i);	1435	downheap (periodics, periodiccnt, i);
1271	}	1436	}
1272	#endif	1437	#endif
1273		1438
1274	#if EV_IDLE_ENABLE	1439	#if EV_IDLE_ENABLE
1275	void inline_size	1440	void inline_size
…		…
1292	}	1457	}
1293	}	1458	}
1294	}	1459	}
1295	#endif	1460	#endif
1296		1461
1297	int inline_size	1462	void inline_speed
1298	time_update_monotonic (EV_P)	1463	time_update (EV_P_ ev_tstamp max_block)
1299	{	1464	{
		1465	int i;
		1466
		1467	#if EV_USE_MONOTONIC
		1468	if (expect_true (have_monotonic))
		1469	{
		1470	ev_tstamp odiff = rtmn_diff;
		1471
1300	mn_now = get_clock ();	1472	mn_now = get_clock ();
1301		1473
		1474	/* only fetch the realtime clock every 0.5MIN_TIMEJUMP seconds /
		1475	/* interpolate in the meantime */
1302	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1476	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1303	{	1477	{
1304	ev_rt_now = rtmn_diff + mn_now;	1478	ev_rt_now = rtmn_diff + mn_now;
1305	return 0;	1479	return;
1306	}	1480	}
1307	else	1481
1308	{
1309	now_floor = mn_now;	1482	now_floor = mn_now;
1310	ev_rt_now = ev_time ();	1483	ev_rt_now = ev_time ();
1311	return 1;
1312	}
1313	}
1314		1484
1315	void inline_size	1485	/* loop a few times, before making important decisions.
1316	time_update (EV_P)	1486	* on the choice of "4": one iteration isn't enough,
1317	{	1487	* in case we get preempted during the calls to
1318	int i;	1488	* ev_time and get_clock. a second call is almost guaranteed
1319		1489	* to succeed in that case, though. and looping a few more times
1320	#if EV_USE_MONOTONIC	1490	* doesn't hurt either as we only do this on time-jumps or
1321	if (expect_true (have_monotonic))	1491	* in the unlikely event of having been preempted here.
1322	{	1492	*/
1323	if (time_update_monotonic (EV_A))	1493	for (i = 4; --i; )
1324	{	1494	{
1325	ev_tstamp odiff = rtmn_diff;
1326
1327	/* loop a few times, before making important decisions.
1328	* on the choice of "4": one iteration isn't enough,
1329	* in case we get preempted during the calls to
1330	* ev_time and get_clock. a second call is almost guaranteed
1331	* to succeed in that case, though. and looping a few more times
1332	* doesn't hurt either as we only do this on time-jumps or
1333	* in the unlikely event of having been preempted here.
1334	*/
1335	for (i = 4; --i; )
1336	{
1337	rtmn_diff = ev_rt_now - mn_now;	1495	rtmn_diff = ev_rt_now - mn_now;
1338		1496
1339	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1497	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1340	return; /* all is well */	1498	return; /* all is well */
1341		1499
1342	ev_rt_now = ev_time ();	1500	ev_rt_now = ev_time ();
1343	mn_now = get_clock ();	1501	mn_now = get_clock ();
1344	now_floor = mn_now;	1502	now_floor = mn_now;
1345	}	1503	}
1346		1504
1347	# if EV_PERIODIC_ENABLE	1505	# if EV_PERIODIC_ENABLE
1348	periodics_reschedule (EV_A);	1506	periodics_reschedule (EV_A);
1349	# endif	1507	# endif
1350	/* no timer adjustment, as the monotonic clock doesn't jump */	1508	/* no timer adjustment, as the monotonic clock doesn't jump */
1351	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1509	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1352	}
1353	}	1510	}
1354	else	1511	else
1355	#endif	1512	#endif
1356	{	1513	{
1357	ev_rt_now = ev_time ();	1514	ev_rt_now = ev_time ();
1358		1515
1359	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1516	if (expect_false (mn_now > ev_rt_now \|\| ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1360	{	1517	{
1361	#if EV_PERIODIC_ENABLE	1518	#if EV_PERIODIC_ENABLE
1362	periodics_reschedule (EV_A);	1519	periodics_reschedule (EV_A);
1363	#endif	1520	#endif
1364
1365	/* adjust timers. this is easy, as the offset is the same for all of them */	1521	/* adjust timers. this is easy, as the offset is the same for all of them */
1366	for (i = 0; i < timercnt; ++i)	1522	for (i = 0; i < timercnt; ++i)
1367	((WT)timers [i])->at += ev_rt_now - mn_now;	1523	((WT)timers [i])->at += ev_rt_now - mn_now;
1368	}	1524	}
1369		1525
…		…
1386	static int loop_done;	1542	static int loop_done;
1387		1543
1388	void	1544	void
1389	ev_loop (EV_P_ int flags)	1545	ev_loop (EV_P_ int flags)
1390	{	1546	{
1391	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1547	loop_done = EVUNLOOP_CANCEL;
1392	? EVUNLOOP_ONE
1393	: EVUNLOOP_CANCEL;
1394		1548
1395	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1549	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1396		1550
1397	do	1551	do
1398	{	1552	{
…		…
1413	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1567	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1414	call_pending (EV_A);	1568	call_pending (EV_A);
1415	}	1569	}
1416	#endif	1570	#endif
1417		1571
1418	/* queue check watchers (and execute them) */	1572	/* queue prepare watchers (and execute them) */
1419	if (expect_false (preparecnt))	1573	if (expect_false (preparecnt))
1420	{	1574	{
1421	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1575	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1422	call_pending (EV_A);	1576	call_pending (EV_A);
1423	}	1577	}
…		…
1432	/* update fd-related kernel structures */	1586	/* update fd-related kernel structures */
1433	fd_reify (EV_A);	1587	fd_reify (EV_A);
1434		1588
1435	/* calculate blocking time */	1589	/* calculate blocking time */
1436	{	1590	{
1437	ev_tstamp block;	1591	ev_tstamp waittime = 0.;
		1592	ev_tstamp sleeptime = 0.;
1438		1593
1439	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1594	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1440	block = 0.; /* do not block at all */
1441	else
1442	{	1595	{
1443	/* update time to cancel out callback processing overhead */	1596	/* update time to cancel out callback processing overhead */
1444	#if EV_USE_MONOTONIC
1445	if (expect_true (have_monotonic))
1446	time_update_monotonic (EV_A);	1597	time_update (EV_A_ 1e100);
1447	else
1448	#endif
1449	{
1450	ev_rt_now = ev_time ();
1451	mn_now = ev_rt_now;
1452	}
1453		1598
1454	block = MAX_BLOCKTIME;	1599	waittime = MAX_BLOCKTIME;
1455		1600
1456	if (timercnt)	1601	if (timercnt)
1457	{	1602	{
1458	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1603	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1459	if (block > to) block = to;	1604	if (waittime > to) waittime = to;
1460	}	1605	}
1461		1606
1462	#if EV_PERIODIC_ENABLE	1607	#if EV_PERIODIC_ENABLE
1463	if (periodiccnt)	1608	if (periodiccnt)
1464	{	1609	{
1465	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1610	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1466	if (block > to) block = to;	1611	if (waittime > to) waittime = to;
1467	}	1612	}
1468	#endif	1613	#endif
1469		1614
1470	if (expect_false (block < 0.)) block = 0.;	1615	if (expect_false (waittime < timeout_blocktime))
		1616	waittime = timeout_blocktime;
		1617
		1618	sleeptime = waittime - backend_fudge;
		1619
		1620	if (expect_true (sleeptime > io_blocktime))
		1621	sleeptime = io_blocktime;
		1622
		1623	if (sleeptime)
		1624	{
		1625	ev_sleep (sleeptime);
		1626	waittime -= sleeptime;
		1627	}
1471	}	1628	}
1472		1629
1473	++loop_count;	1630	++loop_count;
1474	backend_poll (EV_A_ block);	1631	backend_poll (EV_A_ waittime);
		1632
		1633	/* update ev_rt_now, do magic */
		1634	time_update (EV_A_ waittime + sleeptime);
1475	}	1635	}
1476
1477	/* update ev_rt_now, do magic */
1478	time_update (EV_A);
1479		1636
1480	/* queue pending timers and reschedule them */	1637	/* queue pending timers and reschedule them */
1481	timers_reify (EV_A); /* relative timers called last */	1638	timers_reify (EV_A); /* relative timers called last */
1482	#if EV_PERIODIC_ENABLE	1639	#if EV_PERIODIC_ENABLE
1483	periodics_reify (EV_A); /* absolute timers called first */	1640	periodics_reify (EV_A); /* absolute timers called first */
…		…
1491	/* queue check watchers, to be executed first */	1648	/* queue check watchers, to be executed first */
1492	if (expect_false (checkcnt))	1649	if (expect_false (checkcnt))
1493	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1650	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1494		1651
1495	call_pending (EV_A);	1652	call_pending (EV_A);
1496
1497	}	1653	}
1498	while (expect_true (activecnt && !loop_done));	1654	while (expect_true (
		1655	activecnt
		1656	&& !loop_done
		1657	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		1658	));
1499		1659
1500	if (loop_done == EVUNLOOP_ONE)	1660	if (loop_done == EVUNLOOP_ONE)
1501	loop_done = EVUNLOOP_CANCEL;	1661	loop_done = EVUNLOOP_CANCEL;
1502	}	1662	}
1503		1663
…		…
1545	ev_clear_pending (EV_P_ void *w)	1705	ev_clear_pending (EV_P_ void *w)
1546	{	1706	{
1547	W w_ = (W)w;	1707	W w_ = (W)w;
1548	int pending = w_->pending;	1708	int pending = w_->pending;
1549		1709
1550	if (!pending)	1710	if (expect_true (pending))
		1711	{
		1712	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1713	w_->pending = 0;
		1714	p->w = 0;
		1715	return p->events;
		1716	}
		1717	else
1551	return 0;	1718	return 0;
1552
1553	w_->pending = 0;
1554	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1555	p->w = 0;
1556
1557	return p->events;
1558	}	1719	}
1559		1720
1560	void inline_size	1721	void inline_size
1561	pri_adjust (EV_P_ W w)	1722	pri_adjust (EV_P_ W w)
1562	{	1723	{
…		…
1581	w->active = 0;	1742	w->active = 0;
1582	}	1743	}
1583		1744
1584	/*****************************************************************************/	1745	/*****************************************************************************/
1585		1746
1586	void	1747	void noinline
1587	ev_io_start (EV_P_ ev_io *w)	1748	ev_io_start (EV_P_ ev_io *w)
1588	{	1749	{
1589	int fd = w->fd;	1750	int fd = w->fd;
1590		1751
1591	if (expect_false (ev_is_active (w)))	1752	if (expect_false (ev_is_active (w)))
…		…
1593		1754
1594	assert (("ev_io_start called with negative fd", fd >= 0));	1755	assert (("ev_io_start called with negative fd", fd >= 0));
1595		1756
1596	ev_start (EV_A_ (W)w, 1);	1757	ev_start (EV_A_ (W)w, 1);
1597	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1758	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1598	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1759	wlist_add (&anfds[fd].head, (WL)w);
1599		1760
1600	fd_change (EV_A_ fd);	1761	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
		1762	w->events &= ~EV_IOFDSET;
1601	}	1763	}
1602		1764
1603	void	1765	void noinline
1604	ev_io_stop (EV_P_ ev_io *w)	1766	ev_io_stop (EV_P_ ev_io *w)
1605	{	1767	{
1606	clear_pending (EV_A_ (W)w);	1768	clear_pending (EV_A_ (W)w);
1607	if (expect_false (!ev_is_active (w)))	1769	if (expect_false (!ev_is_active (w)))
1608	return;	1770	return;
1609		1771
1610	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1772	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1611		1773
1612	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1774	wlist_del (&anfds[w->fd].head, (WL)w);
1613	ev_stop (EV_A_ (W)w);	1775	ev_stop (EV_A_ (W)w);
1614		1776
1615	fd_change (EV_A_ w->fd);	1777	fd_change (EV_A_ w->fd, 1);
1616	}	1778	}
1617		1779
1618	void	1780	void noinline
1619	ev_timer_start (EV_P_ ev_timer *w)	1781	ev_timer_start (EV_P_ ev_timer *w)
1620	{	1782	{
1621	if (expect_false (ev_is_active (w)))	1783	if (expect_false (ev_is_active (w)))
1622	return;	1784	return;
1623		1785
1624	((WT)w)->at += mn_now;	1786	((WT)w)->at += mn_now;
1625		1787
1626	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1788	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1627		1789
1628	ev_start (EV_A_ (W)w, ++timercnt);	1790	ev_start (EV_A_ (W)w, ++timercnt);
1629	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1791	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1630	timers [timercnt - 1] = w;	1792	timers [timercnt - 1] = (WT)w;
1631	upheap ((WT *)timers, timercnt - 1);	1793	upheap (timers, timercnt - 1);
1632		1794
1633	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	1795	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/
1634	}	1796	}
1635		1797
1636	void	1798	void noinline
1637	ev_timer_stop (EV_P_ ev_timer *w)	1799	ev_timer_stop (EV_P_ ev_timer *w)
1638	{	1800	{
1639	clear_pending (EV_A_ (W)w);	1801	clear_pending (EV_A_ (W)w);
1640	if (expect_false (!ev_is_active (w)))	1802	if (expect_false (!ev_is_active (w)))
1641	return;	1803	return;
1642		1804
1643	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1805	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1644		1806
1645	{	1807	{
1646	int active = ((W)w)->active;	1808	int active = ((W)w)->active;
1647		1809
1648	if (expect_true (--active < --timercnt))	1810	if (expect_true (--active < --timercnt))
1649	{	1811	{
1650	timers [active] = timers [timercnt];	1812	timers [active] = timers [timercnt];
1651	adjustheap ((WT *)timers, timercnt, active);	1813	adjustheap (timers, timercnt, active);
1652	}	1814	}
1653	}	1815	}
1654		1816
1655	((WT)w)->at -= mn_now;	1817	((WT)w)->at -= mn_now;
1656		1818
1657	ev_stop (EV_A_ (W)w);	1819	ev_stop (EV_A_ (W)w);
1658	}	1820	}
1659		1821
1660	void	1822	void noinline
1661	ev_timer_again (EV_P_ ev_timer *w)	1823	ev_timer_again (EV_P_ ev_timer *w)
1662	{	1824	{
1663	if (ev_is_active (w))	1825	if (ev_is_active (w))
1664	{	1826	{
1665	if (w->repeat)	1827	if (w->repeat)
1666	{	1828	{
1667	((WT)w)->at = mn_now + w->repeat;	1829	((WT)w)->at = mn_now + w->repeat;
1668	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1830	adjustheap (timers, timercnt, ((W)w)->active - 1);
1669	}	1831	}
1670	else	1832	else
1671	ev_timer_stop (EV_A_ w);	1833	ev_timer_stop (EV_A_ w);
1672	}	1834	}
1673	else if (w->repeat)	1835	else if (w->repeat)
…		…
1676	ev_timer_start (EV_A_ w);	1838	ev_timer_start (EV_A_ w);
1677	}	1839	}
1678	}	1840	}
1679		1841
1680	#if EV_PERIODIC_ENABLE	1842	#if EV_PERIODIC_ENABLE
1681	void	1843	void noinline
1682	ev_periodic_start (EV_P_ ev_periodic *w)	1844	ev_periodic_start (EV_P_ ev_periodic *w)
1683	{	1845	{
1684	if (expect_false (ev_is_active (w)))	1846	if (expect_false (ev_is_active (w)))
1685	return;	1847	return;
1686		1848
…		…
1688	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1850	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1689	else if (w->interval)	1851	else if (w->interval)
1690	{	1852	{
1691	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1853	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1692	/* this formula differs from the one in periodic_reify because we do not always round up */	1854	/* this formula differs from the one in periodic_reify because we do not always round up */
1693	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1855	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1694	}	1856	}
		1857	else
		1858	((WT)w)->at = w->offset;
1695		1859
1696	ev_start (EV_A_ (W)w, ++periodiccnt);	1860	ev_start (EV_A_ (W)w, ++periodiccnt);
1697	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1861	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1698	periodics [periodiccnt - 1] = w;	1862	periodics [periodiccnt - 1] = (WT)w;
1699	upheap ((WT *)periodics, periodiccnt - 1);	1863	upheap (periodics, periodiccnt - 1);
1700		1864
1701	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	1865	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/
1702	}	1866	}
1703		1867
1704	void	1868	void noinline
1705	ev_periodic_stop (EV_P_ ev_periodic *w)	1869	ev_periodic_stop (EV_P_ ev_periodic *w)
1706	{	1870	{
1707	clear_pending (EV_A_ (W)w);	1871	clear_pending (EV_A_ (W)w);
1708	if (expect_false (!ev_is_active (w)))	1872	if (expect_false (!ev_is_active (w)))
1709	return;	1873	return;
1710		1874
1711	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1875	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1712		1876
1713	{	1877	{
1714	int active = ((W)w)->active;	1878	int active = ((W)w)->active;
1715		1879
1716	if (expect_true (--active < --periodiccnt))	1880	if (expect_true (--active < --periodiccnt))
1717	{	1881	{
1718	periodics [active] = periodics [periodiccnt];	1882	periodics [active] = periodics [periodiccnt];
1719	adjustheap ((WT *)periodics, periodiccnt, active);	1883	adjustheap (periodics, periodiccnt, active);
1720	}	1884	}
1721	}	1885	}
1722		1886
1723	ev_stop (EV_A_ (W)w);	1887	ev_stop (EV_A_ (W)w);
1724	}	1888	}
1725		1889
1726	void	1890	void noinline
1727	ev_periodic_again (EV_P_ ev_periodic *w)	1891	ev_periodic_again (EV_P_ ev_periodic *w)
1728	{	1892	{
1729	/* TODO: use adjustheap and recalculation */	1893	/* TODO: use adjustheap and recalculation */
1730	ev_periodic_stop (EV_A_ w);	1894	ev_periodic_stop (EV_A_ w);
1731	ev_periodic_start (EV_A_ w);	1895	ev_periodic_start (EV_A_ w);
…		…
1734		1898
1735	#ifndef SA_RESTART	1899	#ifndef SA_RESTART
1736	# define SA_RESTART 0	1900	# define SA_RESTART 0
1737	#endif	1901	#endif
1738		1902
1739	void	1903	void noinline
1740	ev_signal_start (EV_P_ ev_signal *w)	1904	ev_signal_start (EV_P_ ev_signal *w)
1741	{	1905	{
1742	#if EV_MULTIPLICITY	1906	#if EV_MULTIPLICITY
1743	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1907	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1744	#endif	1908	#endif
1745	if (expect_false (ev_is_active (w)))	1909	if (expect_false (ev_is_active (w)))
1746	return;	1910	return;
1747		1911
1748	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1912	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1749		1913
		1914	evpipe_init (EV_A);
		1915
		1916	{
		1917	#ifndef _WIN32
		1918	sigset_t full, prev;
		1919	sigfillset (&full);
		1920	sigprocmask (SIG_SETMASK, &full, &prev);
		1921	#endif
		1922
		1923	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1924
		1925	#ifndef _WIN32
		1926	sigprocmask (SIG_SETMASK, &prev, 0);
		1927	#endif
		1928	}
		1929
1750	ev_start (EV_A_ (W)w, 1);	1930	ev_start (EV_A_ (W)w, 1);
1751	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1752	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1931	wlist_add (&signals [w->signum - 1].head, (WL)w);
1753		1932
1754	if (!((WL)w)->next)	1933	if (!((WL)w)->next)
1755	{	1934	{
1756	#if _WIN32	1935	#if _WIN32
1757	signal (w->signum, sighandler);	1936	signal (w->signum, ev_sighandler);
1758	#else	1937	#else
1759	struct sigaction sa;	1938	struct sigaction sa;
1760	sa.sa_handler = sighandler;	1939	sa.sa_handler = ev_sighandler;
1761	sigfillset (&sa.sa_mask);	1940	sigfillset (&sa.sa_mask);
1762	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1941	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1763	sigaction (w->signum, &sa, 0);	1942	sigaction (w->signum, &sa, 0);
1764	#endif	1943	#endif
1765	}	1944	}
1766	}	1945	}
1767		1946
1768	void	1947	void noinline
1769	ev_signal_stop (EV_P_ ev_signal *w)	1948	ev_signal_stop (EV_P_ ev_signal *w)
1770	{	1949	{
1771	clear_pending (EV_A_ (W)w);	1950	clear_pending (EV_A_ (W)w);
1772	if (expect_false (!ev_is_active (w)))	1951	if (expect_false (!ev_is_active (w)))
1773	return;	1952	return;
1774		1953
1775	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1954	wlist_del (&signals [w->signum - 1].head, (WL)w);
1776	ev_stop (EV_A_ (W)w);	1955	ev_stop (EV_A_ (W)w);
1777		1956
1778	if (!signals [w->signum - 1].head)	1957	if (!signals [w->signum - 1].head)
1779	signal (w->signum, SIG_DFL);	1958	signal (w->signum, SIG_DFL);
1780	}	1959	}
…		…
1787	#endif	1966	#endif
1788	if (expect_false (ev_is_active (w)))	1967	if (expect_false (ev_is_active (w)))
1789	return;	1968	return;
1790		1969
1791	ev_start (EV_A_ (W)w, 1);	1970	ev_start (EV_A_ (W)w, 1);
1792	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1971	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1793	}	1972	}
1794		1973
1795	void	1974	void
1796	ev_child_stop (EV_P_ ev_child *w)	1975	ev_child_stop (EV_P_ ev_child *w)
1797	{	1976	{
1798	clear_pending (EV_A_ (W)w);	1977	clear_pending (EV_A_ (W)w);
1799	if (expect_false (!ev_is_active (w)))	1978	if (expect_false (!ev_is_active (w)))
1800	return;	1979	return;
1801		1980
1802	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1981	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1803	ev_stop (EV_A_ (W)w);	1982	ev_stop (EV_A_ (W)w);
1804	}	1983	}
1805		1984
1806	#if EV_STAT_ENABLE	1985	#if EV_STAT_ENABLE
1807		1986
…		…
2149		2328
2150	#if EV_EMBED_ENABLE	2329	#if EV_EMBED_ENABLE
2151	void noinline	2330	void noinline
2152	ev_embed_sweep (EV_P_ ev_embed *w)	2331	ev_embed_sweep (EV_P_ ev_embed *w)
2153	{	2332	{
2154	ev_loop (w->loop, EVLOOP_NONBLOCK);	2333	ev_loop (w->other, EVLOOP_NONBLOCK);
2155	}	2334	}
2156		2335
2157	static void	2336	static void
2158	embed_cb (EV_P_ ev_io *io, int revents)	2337	embed_io_cb (EV_P_ ev_io *io, int revents)
2159	{	2338	{
2160	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2339	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2161		2340
2162	if (ev_cb (w))	2341	if (ev_cb (w))
2163	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2342	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2164	else	2343	else
2165	ev_embed_sweep (loop, w);	2344	ev_loop (w->other, EVLOOP_NONBLOCK);
2166	}	2345	}
		2346
		2347	static void
		2348	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2349	{
		2350	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2351
		2352	{
		2353	struct ev_loop *loop = w->other;
		2354
		2355	while (fdchangecnt)
		2356	{
		2357	fd_reify (EV_A);
		2358	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2359	}
		2360	}
		2361	}
		2362
		2363	#if 0
		2364	static void
		2365	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2366	{
		2367	ev_idle_stop (EV_A_ idle);
		2368	}
		2369	#endif
2167		2370
2168	void	2371	void
2169	ev_embed_start (EV_P_ ev_embed *w)	2372	ev_embed_start (EV_P_ ev_embed *w)
2170	{	2373	{
2171	if (expect_false (ev_is_active (w)))	2374	if (expect_false (ev_is_active (w)))
2172	return;	2375	return;
2173		2376
2174	{	2377	{
2175	struct ev_loop *loop = w->loop;	2378	struct ev_loop *loop = w->other;
2176	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2379	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2177	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2380	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2178	}	2381	}
2179		2382
2180	ev_set_priority (&w->io, ev_priority (w));	2383	ev_set_priority (&w->io, ev_priority (w));
2181	ev_io_start (EV_A_ &w->io);	2384	ev_io_start (EV_A_ &w->io);
2182		2385
		2386	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2387	ev_set_priority (&w->prepare, EV_MINPRI);
		2388	ev_prepare_start (EV_A_ &w->prepare);
		2389
		2390	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2391
2183	ev_start (EV_A_ (W)w, 1);	2392	ev_start (EV_A_ (W)w, 1);
2184	}	2393	}
2185		2394
2186	void	2395	void
2187	ev_embed_stop (EV_P_ ev_embed *w)	2396	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2189	clear_pending (EV_A_ (W)w);	2398	clear_pending (EV_A_ (W)w);
2190	if (expect_false (!ev_is_active (w)))	2399	if (expect_false (!ev_is_active (w)))
2191	return;	2400	return;
2192		2401
2193	ev_io_stop (EV_A_ &w->io);	2402	ev_io_stop (EV_A_ &w->io);
		2403	ev_prepare_stop (EV_A_ &w->prepare);
2194		2404
2195	ev_stop (EV_A_ (W)w);	2405	ev_stop (EV_A_ (W)w);
2196	}	2406	}
2197	#endif	2407	#endif
2198		2408
…		…
2223		2433
2224	ev_stop (EV_A_ (W)w);	2434	ev_stop (EV_A_ (W)w);
2225	}	2435	}
2226	#endif	2436	#endif
2227		2437
		2438	#if EV_ASYNC_ENABLE
		2439	void
		2440	ev_async_start (EV_P_ ev_async *w)
		2441	{
		2442	if (expect_false (ev_is_active (w)))
		2443	return;
		2444
		2445	evpipe_init (EV_A);
		2446
		2447	ev_start (EV_A_ (W)w, ++asynccnt);
		2448	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2449	asyncs [asynccnt - 1] = w;
		2450	}
		2451
		2452	void
		2453	ev_async_stop (EV_P_ ev_async *w)
		2454	{
		2455	clear_pending (EV_A_ (W)w);
		2456	if (expect_false (!ev_is_active (w)))
		2457	return;
		2458
		2459	{
		2460	int active = ((W)w)->active;
		2461	asyncs [active - 1] = asyncs [--asynccnt];
		2462	((W)asyncs [active - 1])->active = active;
		2463	}
		2464
		2465	ev_stop (EV_A_ (W)w);
		2466	}
		2467
		2468	void
		2469	ev_async_send (EV_P_ ev_async *w)
		2470	{
		2471	w->sent = 1;
		2472	evpipe_write (EV_A_ &gotasync);
		2473	}
		2474	#endif
		2475
2228	/*****************************************************************************/	2476	/*****************************************************************************/
2229		2477
2230	struct ev_once	2478	struct ev_once
2231	{	2479	{
2232	ev_io io;	2480	ev_io io;
…		…
2287	ev_timer_set (&once->to, timeout, 0.);	2535	ev_timer_set (&once->to, timeout, 0.);
2288	ev_timer_start (EV_A_ &once->to);	2536	ev_timer_start (EV_A_ &once->to);
2289	}	2537	}
2290	}	2538	}
2291		2539
		2540	#if EV_MULTIPLICITY
		2541	#include "ev_wrap.h"
		2542	#endif
		2543
2292	#ifdef __cplusplus	2544	#ifdef __cplusplus
2293	}	2545	}
2294	#endif	2546	#endif
2295		2547

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Comparing libev/ev.c (file contents): Revision 1.168 by root, Sat Dec 8 14:12:07 2007 UTC vs. Revision 1.219 by root, Wed Apr 2 10:55:39 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.168 by root, Sat Dec 8 14:12:07 2007 UTC vs.
Revision 1.219 by root, Wed Apr 2 10:55:39 2008 UTC