ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.167 by root, Sat Dec 8 04:02:31 2007 UTC vs.
Revision 1.220 by root, Sun Apr 6 09:53:17 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
212	# define EV_USE_INOTIFY 0
213	#endif
214
215	#if EV_USE_INOTIFY	271	#if EV_USE_EVENTFD
216	# include <sys/inotify.h>	272	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		273	int eventfd (unsigned int initval, int flags);
217	#endif	274	#endif
218		275
219	/**/	276	/**/
		277
		278	/*
		279	* This is used to avoid floating point rounding problems.
		280	* It is added to ev_rt_now when scheduling periodics
		281	* to ensure progress, time-wise, even when rounding
		282	* errors are against us.
		283	* This value is good at least till the year 4000.
		284	* Better solutions welcome.
		285	*/
		286	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
220		287
221	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	288	#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) */	289	#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 */	290	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
224		291
225	#if __GNUC__ >= 3	292	#if __GNUC__ >= 4
226	# define expect(expr,value) __builtin_expect ((expr),(value))	293	# 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))	294	# 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	295	#else
236	# define expect(expr,value) (expr)	296	# define expect(expr,value) (expr)
237	# define inline_speed static
238	# define inline_size static
239	# define noinline	297	# define noinline
		298	# if __STDC_VERSION__ < 199901L
		299	# define inline
		300	# endif
240	#endif	301	#endif
241		302
242	#define expect_false(expr) expect ((expr) != 0, 0)	303	#define expect_false(expr) expect ((expr) != 0, 0)
243	#define expect_true(expr) expect ((expr) != 0, 1)	304	#define expect_true(expr) expect ((expr) != 0, 1)
		305	#define inline_size static inline
		306
		307	#if EV_MINIMAL
		308	# define inline_speed static noinline
		309	#else
		310	# define inline_speed static inline
		311	#endif
244		312
245	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	313	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
246	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	314	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
247		315
248	#define EMPTY /* required for microsofts broken pseudo-c compiler */	316	#define EMPTY /* required for microsofts broken pseudo-c compiler */
…		…
250		318
251	typedef ev_watcher *W;	319	typedef ev_watcher *W;
252	typedef ev_watcher_list *WL;	320	typedef ev_watcher_list *WL;
253	typedef ev_watcher_time *WT;	321	typedef ev_watcher_time *WT;
254		322
		323	#if EV_USE_MONOTONIC
		324	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		325	/* giving it a reasonably high chance of working on typical architetcures */
255	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	326	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		327	#endif
256		328
257	#ifdef _WIN32	329	#ifdef _WIN32
258	# include "ev_win32.c"	330	# include "ev_win32.c"
259	#endif	331	#endif
260		332
…		…
396	{	468	{
397	return ev_rt_now;	469	return ev_rt_now;
398	}	470	}
399	#endif	471	#endif
400		472
		473	void
		474	ev_sleep (ev_tstamp delay)
		475	{
		476	if (delay > 0.)
		477	{
		478	#if EV_USE_NANOSLEEP
		479	struct timespec ts;
		480
		481	ts.tv_sec = (time_t)delay;
		482	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		483
		484	nanosleep (&ts, 0);
		485	#elif defined(_WIN32)
		486	Sleep ((unsigned long)(delay * 1e3));
		487	#else
		488	struct timeval tv;
		489
		490	tv.tv_sec = (time_t)delay;
		491	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		492
		493	select (0, 0, 0, 0, &tv);
		494	#endif
		495	}
		496	}
		497
		498	/*****************************************************************************/
		499
401	int inline_size	500	int inline_size
402	array_nextsize (int elem, int cur, int cnt)	501	array_nextsize (int elem, int cur, int cnt)
403	{	502	{
404	int ncur = cur + 1;	503	int ncur = cur + 1;
405		504
…		…
417	}	516	}
418		517
419	return ncur;	518	return ncur;
420	}	519	}
421		520
422	inline_speed void *	521	static noinline void *
423	array_realloc (int elem, void *base, int *cur, int cnt)	522	array_realloc (int elem, void *base, int *cur, int cnt)
424	{	523	{
425	*cur = array_nextsize (elem, *cur, cnt);	524	*cur = array_nextsize (elem, *cur, cnt);
426	return ev_realloc (base, elem * *cur);	525	return ev_realloc (base, elem * *cur);
427	}	526	}
…		…
452		551
453	void noinline	552	void noinline
454	ev_feed_event (EV_P_ void *w, int revents)	553	ev_feed_event (EV_P_ void *w, int revents)
455	{	554	{
456	W w_ = (W)w;	555	W w_ = (W)w;
		556	int pri = ABSPRI (w_);
457		557
458	if (expect_false (w_->pending))	558	if (expect_false (w_->pending))
		559	pendings [pri][w_->pending - 1].events |= revents;
		560	else
459	{	561	{
		562	w_->pending = ++pendingcnt [pri];
		563	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		564	pendings [pri][w_->pending - 1].w = w_;
460	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	565	pendings [pri][w_->pending - 1].events = revents;
461	return;
462	}	566	}
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	}	567	}
469		568
470	void inline_size	569	void inline_speed
471	queue_events (EV_P_ W *events, int eventcnt, int type)	570	queue_events (EV_P_ W *events, int eventcnt, int type)
472	{	571	{
473	int i;	572	int i;
474		573
475	for (i = 0; i < eventcnt; ++i)	574	for (i = 0; i < eventcnt; ++i)
…		…
507	}	606	}
508		607
509	void	608	void
510	ev_feed_fd_event (EV_P_ int fd, int revents)	609	ev_feed_fd_event (EV_P_ int fd, int revents)
511	{	610	{
		611	if (fd >= 0 && fd < anfdmax)
512	fd_event (EV_A_ fd, revents);	612	fd_event (EV_A_ fd, revents);
513	}	613	}
514		614
515	void inline_size	615	void inline_size
516	fd_reify (EV_P)	616	fd_reify (EV_P)
517	{	617	{
…		…
521	{	621	{
522	int fd = fdchanges [i];	622	int fd = fdchanges [i];
523	ANFD *anfd = anfds + fd;	623	ANFD *anfd = anfds + fd;
524	ev_io *w;	624	ev_io *w;
525		625
526	int events = 0;	626	unsigned char events = 0;
527		627
528	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	628	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
529	events |= w->events;	629	events |= (unsigned char)w->events;
530		630
531	#if EV_SELECT_IS_WINSOCKET	631	#if EV_SELECT_IS_WINSOCKET
532	if (events)	632	if (events)
533	{	633	{
534	unsigned long argp;	634	unsigned long argp;
		635	#ifdef EV_FD_TO_WIN32_HANDLE
		636	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		637	#else
535	anfd->handle = _get_osfhandle (fd);	638	anfd->handle = _get_osfhandle (fd);
		639	#endif
536	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	640	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
537	}	641	}
538	#endif	642	#endif
539		643
		644	{
		645	unsigned char o_events = anfd->events;
		646	unsigned char o_reify = anfd->reify;
		647
540	anfd->reify = 0;	648	anfd->reify = 0;
541
542	backend_modify (EV_A_ fd, anfd->events, events);
543	anfd->events = events;	649	anfd->events = events;
		650
		651	if (o_events != events || o_reify & EV_IOFDSET)
		652	backend_modify (EV_A_ fd, o_events, events);
		653	}
544	}	654	}
545		655
546	fdchangecnt = 0;	656	fdchangecnt = 0;
547	}	657	}
548		658
549	void inline_size	659	void inline_size
550	fd_change (EV_P_ int fd)	660	fd_change (EV_P_ int fd, int flags)
551	{	661	{
552	if (expect_false (anfds [fd].reify))	662	unsigned char reify = anfds [fd].reify;
553	return;
554
555	anfds [fd].reify = 1;	663	anfds [fd].reify |= flags;
556		664
		665	if (expect_true (!reify))
		666	{
557	++fdchangecnt;	667	++fdchangecnt;
558	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	668	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
559	fdchanges [fdchangecnt - 1] = fd;	669	fdchanges [fdchangecnt - 1] = fd;
		670	}
560	}	671	}
561		672
562	void inline_speed	673	void inline_speed
563	fd_kill (EV_P_ int fd)	674	fd_kill (EV_P_ int fd)
564	{	675	{
…		…
615		726
616	for (fd = 0; fd < anfdmax; ++fd)	727	for (fd = 0; fd < anfdmax; ++fd)
617	if (anfds [fd].events)	728	if (anfds [fd].events)
618	{	729	{
619	anfds [fd].events = 0;	730	anfds [fd].events = 0;
620	fd_change (EV_A_ fd);	731	fd_change (EV_A_ fd, EV_IOFDSET | 1);
621	}	732	}
622	}	733	}
623		734
624	/*****************************************************************************/	735	/*****************************************************************************/
625		736
626	void inline_speed	737	void inline_speed
627	upheap (WT *heap, int k)	738	upheap (WT *heap, int k)
628	{	739	{
629	WT w = heap [k];	740	WT w = heap [k];
630		741
631	while (k && heap [k >> 1]->at > w->at)	742	while (k)
632	{	743	{
		744	int p = (k - 1) >> 1;
		745
		746	if (heap [p]->at <= w->at)
		747	break;
		748
633	heap [k] = heap [k >> 1];	749	heap [k] = heap [p];
634	((W)heap [k])->active = k + 1;	750	((W)heap [k])->active = k + 1;
635	k >>= 1;	751	k = p;
636	}	752	}
637		753
638	heap [k] = w;	754	heap [k] = w;
639	((W)heap [k])->active = k + 1;	755	((W)heap [k])->active = k + 1;
640
641	}	756	}
642		757
643	void inline_speed	758	void inline_speed
644	downheap (WT *heap, int N, int k)	759	downheap (WT *heap, int N, int k)
645	{	760	{
646	WT w = heap [k];	761	WT w = heap [k];
647		762
648	while (k < (N >> 1))	763	for (;;)
649	{	764	{
650	int j = k << 1;	765	int c = (k << 1) + 1;
651		766
652	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	767	if (c >= N)
653	++j;
654
655	if (w->at <= heap [j]->at)
656	break;	768	break;
657		769
		770	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		771	? 1 : 0;
		772
		773	if (w->at <= heap [c]->at)
		774	break;
		775
658	heap [k] = heap [j];	776	heap [k] = heap [c];
659	((W)heap [k])->active = k + 1;	777	((W)heap [k])->active = k + 1;
		778
660	k = j;	779	k = c;
661	}	780	}
662		781
663	heap [k] = w;	782	heap [k] = w;
664	((W)heap [k])->active = k + 1;	783	((W)heap [k])->active = k + 1;
665	}	784	}
…		…
674	/*****************************************************************************/	793	/*****************************************************************************/
675		794
676	typedef struct	795	typedef struct
677	{	796	{
678	WL head;	797	WL head;
679	sig_atomic_t volatile gotsig;	798	EV_ATOMIC_T gotsig;
680	} ANSIG;	799	} ANSIG;
681		800
682	static ANSIG *signals;	801	static ANSIG *signals;
683	static int signalmax;	802	static int signalmax;
684		803
685	static int sigpipe [2];	804	static EV_ATOMIC_T gotsig;
686	static sig_atomic_t volatile gotsig;
687	static ev_io sigev;
688		805
689	void inline_size	806	void inline_size
690	signals_init (ANSIG *base, int count)	807	signals_init (ANSIG *base, int count)
691	{	808	{
692	while (count--)	809	while (count--)
…		…
696		813
697	++base;	814	++base;
698	}	815	}
699	}	816	}
700		817
701	static void	818	/*****************************************************************************/
702	sighandler (int signum)
703	{
704	#if _WIN32
705	signal (signum, sighandler);
706	#endif
707		819
708	signals [signum - 1].gotsig = 1;
709
710	if (!gotsig)
711	{
712	int old_errno = errno;
713	gotsig = 1;
714	write (sigpipe [1], &signum, 1);
715	errno = old_errno;
716	}
717	}
718
719	void noinline
720	ev_feed_signal_event (EV_P_ int signum)
721	{
722	WL w;
723
724	#if EV_MULTIPLICITY
725	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
726	#endif
727
728	--signum;
729
730	if (signum < 0 || signum >= signalmax)
731	return;
732
733	signals [signum].gotsig = 0;
734
735	for (w = signals [signum].head; w; w = w->next)
736	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
737	}
738
739	static void
740	sigcb (EV_P_ ev_io *iow, int revents)
741	{
742	int signum;
743
744	read (sigpipe [0], &revents, 1);
745	gotsig = 0;
746
747	for (signum = signalmax; signum--; )
748	if (signals [signum].gotsig)
749	ev_feed_signal_event (EV_A_ signum + 1);
750	}
751
752	void inline_size	820	void inline_speed
753	fd_intern (int fd)	821	fd_intern (int fd)
754	{	822	{
755	#ifdef _WIN32	823	#ifdef _WIN32
756	int arg = 1;	824	int arg = 1;
757	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	825	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
760	fcntl (fd, F_SETFL, O_NONBLOCK);	828	fcntl (fd, F_SETFL, O_NONBLOCK);
761	#endif	829	#endif
762	}	830	}
763		831
764	static void noinline	832	static void noinline
765	siginit (EV_P)	833	evpipe_init (EV_P)
766	{	834	{
		835	if (!ev_is_active (&pipeev))
		836	{
		837	#if EV_USE_EVENTFD
		838	if ((evfd = eventfd (0, 0)) >= 0)
		839	{
		840	evpipe [0] = -1;
		841	fd_intern (evfd);
		842	ev_io_set (&pipeev, evfd, EV_READ);
		843	}
		844	else
		845	#endif
		846	{
		847	while (pipe (evpipe))
		848	syserr ("(libev) error creating signal/async pipe");
		849
767	fd_intern (sigpipe [0]);	850	fd_intern (evpipe [0]);
768	fd_intern (sigpipe [1]);	851	fd_intern (evpipe [1]);
		852	ev_io_set (&pipeev, evpipe [0], EV_READ);
		853	}
769		854
770	ev_io_set (&sigev, sigpipe [0], EV_READ);
771	ev_io_start (EV_A_ &sigev);	855	ev_io_start (EV_A_ &pipeev);
772	ev_unref (EV_A); /* child watcher should not keep loop alive */	856	ev_unref (EV_A); /* watcher should not keep loop alive */
		857	}
		858	}
		859
		860	void inline_size
		861	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		862	{
		863	if (!*flag)
		864	{
		865	int old_errno = errno; /* save errno because write might clobber it */
		866
		867	*flag = 1;
		868
		869	#if EV_USE_EVENTFD
		870	if (evfd >= 0)
		871	{
		872	uint64_t counter = 1;
		873	write (evfd, &counter, sizeof (uint64_t));
		874	}
		875	else
		876	#endif
		877	write (evpipe [1], &old_errno, 1);
		878
		879	errno = old_errno;
		880	}
		881	}
		882
		883	static void
		884	pipecb (EV_P_ ev_io *iow, int revents)
		885	{
		886	#if EV_USE_EVENTFD
		887	if (evfd >= 0)
		888	{
		889	uint64_t counter = 1;
		890	read (evfd, &counter, sizeof (uint64_t));
		891	}
		892	else
		893	#endif
		894	{
		895	char dummy;
		896	read (evpipe [0], &dummy, 1);
		897	}
		898
		899	if (gotsig && ev_is_default_loop (EV_A))
		900	{
		901	int signum;
		902	gotsig = 0;
		903
		904	for (signum = signalmax; signum--; )
		905	if (signals [signum].gotsig)
		906	ev_feed_signal_event (EV_A_ signum + 1);
		907	}
		908
		909	#if EV_ASYNC_ENABLE
		910	if (gotasync)
		911	{
		912	int i;
		913	gotasync = 0;
		914
		915	for (i = asynccnt; i--; )
		916	if (asyncs [i]->sent)
		917	{
		918	asyncs [i]->sent = 0;
		919	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		920	}
		921	}
		922	#endif
773	}	923	}
774		924
775	/*****************************************************************************/	925	/*****************************************************************************/
776		926
		927	static void
		928	ev_sighandler (int signum)
		929	{
		930	#if EV_MULTIPLICITY
		931	struct ev_loop *loop = &default_loop_struct;
		932	#endif
		933
		934	#if _WIN32
		935	signal (signum, ev_sighandler);
		936	#endif
		937
		938	signals [signum - 1].gotsig = 1;
		939	evpipe_write (EV_A_ &gotsig);
		940	}
		941
		942	void noinline
		943	ev_feed_signal_event (EV_P_ int signum)
		944	{
		945	WL w;
		946
		947	#if EV_MULTIPLICITY
		948	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		949	#endif
		950
		951	--signum;
		952
		953	if (signum < 0 || signum >= signalmax)
		954	return;
		955
		956	signals [signum].gotsig = 0;
		957
		958	for (w = signals [signum].head; w; w = w->next)
		959	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		960	}
		961
		962	/*****************************************************************************/
		963
777	static ev_child *childs [EV_PID_HASHSIZE];	964	static WL childs [EV_PID_HASHSIZE];
778		965
779	#ifndef _WIN32	966	#ifndef _WIN32
780		967
781	static ev_signal childev;	968	static ev_signal childev;
782		969
		970	#ifndef WIFCONTINUED
		971	# define WIFCONTINUED(status) 0
		972	#endif
		973
783	void inline_speed	974	void inline_speed
784	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	975	child_reap (EV_P_ int chain, int pid, int status)
785	{	976	{
786	ev_child *w;	977	ev_child *w;
		978	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
787		979
788	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	980	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		981	{
789	if (w->pid == pid || !w->pid)	982	if ((w->pid == pid || !w->pid)
		983	&& (!traced || (w->flags & 1)))
790	{	984	{
791	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	985	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
792	w->rpid = pid;	986	w->rpid = pid;
793	w->rstatus = status;	987	w->rstatus = status;
794	ev_feed_event (EV_A_ (W)w, EV_CHILD);	988	ev_feed_event (EV_A_ (W)w, EV_CHILD);
795	}	989	}
		990	}
796	}	991	}
797		992
798	#ifndef WCONTINUED	993	#ifndef WCONTINUED
799	# define WCONTINUED 0	994	# define WCONTINUED 0
800	#endif	995	#endif
…		…
809	if (!WCONTINUED	1004	if (!WCONTINUED
810	|| errno != EINVAL	1005	|| errno != EINVAL
811	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1006	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
812	return;	1007	return;
813		1008
814	/* make sure we are called again until all childs have been reaped */	1009	/* make sure we are called again until all children have been reaped */
815	/* we need to do it this way so that the callback gets called before we continue */	1010	/* we need to do it this way so that the callback gets called before we continue */
816	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1011	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
817		1012
818	child_reap (EV_A_ sw, pid, pid, status);	1013	child_reap (EV_A_ pid, pid, status);
819	if (EV_PID_HASHSIZE > 1)	1014	if (EV_PID_HASHSIZE > 1)
820	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1015	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
821	}	1016	}
822		1017
823	#endif	1018	#endif
824		1019
825	/*****************************************************************************/	1020	/*****************************************************************************/
…		…
897	}	1092	}
898		1093
899	unsigned int	1094	unsigned int
900	ev_embeddable_backends (void)	1095	ev_embeddable_backends (void)
901	{	1096	{
902	return EVBACKEND_EPOLL	1097	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
903	| EVBACKEND_KQUEUE	1098
904	| EVBACKEND_PORT;	1099	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1100	/* please fix it and tell me how to detect the fix */
		1101	flags &= ~EVBACKEND_EPOLL;
		1102
		1103	return flags;
905	}	1104	}
906		1105
907	unsigned int	1106	unsigned int
908	ev_backend (EV_P)	1107	ev_backend (EV_P)
909	{	1108	{
…		…
912		1111
913	unsigned int	1112	unsigned int
914	ev_loop_count (EV_P)	1113	ev_loop_count (EV_P)
915	{	1114	{
916	return loop_count;	1115	return loop_count;
		1116	}
		1117
		1118	void
		1119	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1120	{
		1121	io_blocktime = interval;
		1122	}
		1123
		1124	void
		1125	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1126	{
		1127	timeout_blocktime = interval;
917	}	1128	}
918		1129
919	static void noinline	1130	static void noinline
920	loop_init (EV_P_ unsigned int flags)	1131	loop_init (EV_P_ unsigned int flags)
921	{	1132	{
…		…
927	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1138	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
928	have_monotonic = 1;	1139	have_monotonic = 1;
929	}	1140	}
930	#endif	1141	#endif
931		1142
932	ev_rt_now = ev_time ();	1143	ev_rt_now = ev_time ();
933	mn_now = get_clock ();	1144	mn_now = get_clock ();
934	now_floor = mn_now;	1145	now_floor = mn_now;
935	rtmn_diff = ev_rt_now - mn_now;	1146	rtmn_diff = ev_rt_now - mn_now;
		1147
		1148	io_blocktime = 0.;
		1149	timeout_blocktime = 0.;
		1150	backend = 0;
		1151	backend_fd = -1;
		1152	gotasync = 0;
		1153	#if EV_USE_INOTIFY
		1154	fs_fd = -2;
		1155	#endif
936		1156
937	/* pid check not overridable via env */	1157	/* pid check not overridable via env */
938	#ifndef _WIN32	1158	#ifndef _WIN32
939	if (flags & EVFLAG_FORKCHECK)	1159	if (flags & EVFLAG_FORKCHECK)
940	curpid = getpid ();	1160	curpid = getpid ();
…		…
946	flags = atoi (getenv ("LIBEV_FLAGS"));	1166	flags = atoi (getenv ("LIBEV_FLAGS"));
947		1167
948	if (!(flags & 0x0000ffffUL))	1168	if (!(flags & 0x0000ffffUL))
949	flags |= ev_recommended_backends ();	1169	flags |= ev_recommended_backends ();
950		1170
951	backend = 0;
952	backend_fd = -1;
953	#if EV_USE_INOTIFY
954	fs_fd = -2;
955	#endif
956
957	#if EV_USE_PORT	1171	#if EV_USE_PORT
958	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1172	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
959	#endif	1173	#endif
960	#if EV_USE_KQUEUE	1174	#if EV_USE_KQUEUE
961	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1175	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
968	#endif	1182	#endif
969	#if EV_USE_SELECT	1183	#if EV_USE_SELECT
970	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1184	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
971	#endif	1185	#endif
972		1186
973	ev_init (&sigev, sigcb);	1187	ev_init (&pipeev, pipecb);
974	ev_set_priority (&sigev, EV_MAXPRI);	1188	ev_set_priority (&pipeev, EV_MAXPRI);
975	}	1189	}
976	}	1190	}
977		1191
978	static void noinline	1192	static void noinline
979	loop_destroy (EV_P)	1193	loop_destroy (EV_P)
980	{	1194	{
981	int i;	1195	int i;
		1196
		1197	if (ev_is_active (&pipeev))
		1198	{
		1199	ev_ref (EV_A); /* signal watcher */
		1200	ev_io_stop (EV_A_ &pipeev);
		1201
		1202	#if EV_USE_EVENTFD
		1203	if (evfd >= 0)
		1204	close (evfd);
		1205	#endif
		1206
		1207	if (evpipe [0] >= 0)
		1208	{
		1209	close (evpipe [0]);
		1210	close (evpipe [1]);
		1211	}
		1212	}
982		1213
983	#if EV_USE_INOTIFY	1214	#if EV_USE_INOTIFY
984	if (fs_fd >= 0)	1215	if (fs_fd >= 0)
985	close (fs_fd);	1216	close (fs_fd);
986	#endif	1217	#endif
…		…
1009	array_free (pending, [i]);	1240	array_free (pending, [i]);
1010	#if EV_IDLE_ENABLE	1241	#if EV_IDLE_ENABLE
1011	array_free (idle, [i]);	1242	array_free (idle, [i]);
1012	#endif	1243	#endif
1013	}	1244	}
		1245
		1246	ev_free (anfds); anfdmax = 0;
1014		1247
1015	/* have to use the microsoft-never-gets-it-right macro */	1248	/* have to use the microsoft-never-gets-it-right macro */
1016	array_free (fdchange, EMPTY);	1249	array_free (fdchange, EMPTY);
1017	array_free (timer, EMPTY);	1250	array_free (timer, EMPTY);
1018	#if EV_PERIODIC_ENABLE	1251	#if EV_PERIODIC_ENABLE
1019	array_free (periodic, EMPTY);	1252	array_free (periodic, EMPTY);
1020	#endif	1253	#endif
		1254	#if EV_FORK_ENABLE
		1255	array_free (fork, EMPTY);
		1256	#endif
1021	array_free (prepare, EMPTY);	1257	array_free (prepare, EMPTY);
1022	array_free (check, EMPTY);	1258	array_free (check, EMPTY);
		1259	#if EV_ASYNC_ENABLE
		1260	array_free (async, EMPTY);
		1261	#endif
1023		1262
1024	backend = 0;	1263	backend = 0;
1025	}	1264	}
1026		1265
1027	void inline_size infy_fork (EV_P);	1266	void inline_size infy_fork (EV_P);
…		…
1040	#endif	1279	#endif
1041	#if EV_USE_INOTIFY	1280	#if EV_USE_INOTIFY
1042	infy_fork (EV_A);	1281	infy_fork (EV_A);
1043	#endif	1282	#endif
1044		1283
1045	if (ev_is_active (&sigev))	1284	if (ev_is_active (&pipeev))
1046	{	1285	{
1047	/* default loop */	1286	/* this "locks" the handlers against writing to the pipe */
		1287	/* while we modify the fd vars */
		1288	gotsig = 1;
		1289	#if EV_ASYNC_ENABLE
		1290	gotasync = 1;
		1291	#endif
1048		1292
1049	ev_ref (EV_A);	1293	ev_ref (EV_A);
1050	ev_io_stop (EV_A_ &sigev);	1294	ev_io_stop (EV_A_ &pipeev);
		1295
		1296	#if EV_USE_EVENTFD
		1297	if (evfd >= 0)
		1298	close (evfd);
		1299	#endif
		1300
		1301	if (evpipe [0] >= 0)
		1302	{
1051	close (sigpipe [0]);	1303	close (evpipe [0]);
1052	close (sigpipe [1]);	1304	close (evpipe [1]);
		1305	}
1053		1306
1054	while (pipe (sigpipe))
1055	syserr ("(libev) error creating pipe");
1056
1057	siginit (EV_A);	1307	evpipe_init (EV_A);
		1308	/* now iterate over everything, in case we missed something */
		1309	pipecb (EV_A_ &pipeev, EV_READ);
1058	}	1310	}
1059		1311
1060	postfork = 0;	1312	postfork = 0;
1061	}	1313	}
1062		1314
…		…
1084	}	1336	}
1085		1337
1086	void	1338	void
1087	ev_loop_fork (EV_P)	1339	ev_loop_fork (EV_P)
1088	{	1340	{
1089	postfork = 1;	1341	postfork = 1; /* must be in line with ev_default_fork */
1090	}	1342	}
1091		1343
1092	#endif	1344	#endif
1093		1345
1094	#if EV_MULTIPLICITY	1346	#if EV_MULTIPLICITY
…		…
1097	#else	1349	#else
1098	int	1350	int
1099	ev_default_loop (unsigned int flags)	1351	ev_default_loop (unsigned int flags)
1100	#endif	1352	#endif
1101	{	1353	{
1102	if (sigpipe [0] == sigpipe [1])
1103	if (pipe (sigpipe))
1104	return 0;
1105
1106	if (!ev_default_loop_ptr)	1354	if (!ev_default_loop_ptr)
1107	{	1355	{
1108	#if EV_MULTIPLICITY	1356	#if EV_MULTIPLICITY
1109	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1357	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1110	#else	1358	#else
…		…
1113		1361
1114	loop_init (EV_A_ flags);	1362	loop_init (EV_A_ flags);
1115		1363
1116	if (ev_backend (EV_A))	1364	if (ev_backend (EV_A))
1117	{	1365	{
1118	siginit (EV_A);
1119
1120	#ifndef _WIN32	1366	#ifndef _WIN32
1121	ev_signal_init (&childev, childcb, SIGCHLD);	1367	ev_signal_init (&childev, childcb, SIGCHLD);
1122	ev_set_priority (&childev, EV_MAXPRI);	1368	ev_set_priority (&childev, EV_MAXPRI);
1123	ev_signal_start (EV_A_ &childev);	1369	ev_signal_start (EV_A_ &childev);
1124	ev_unref (EV_A); /* child watcher should not keep loop alive */	1370	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1141	#ifndef _WIN32	1387	#ifndef _WIN32
1142	ev_ref (EV_A); /* child watcher */	1388	ev_ref (EV_A); /* child watcher */
1143	ev_signal_stop (EV_A_ &childev);	1389	ev_signal_stop (EV_A_ &childev);
1144	#endif	1390	#endif
1145		1391
1146	ev_ref (EV_A); /* signal watcher */
1147	ev_io_stop (EV_A_ &sigev);
1148
1149	close (sigpipe [0]); sigpipe [0] = 0;
1150	close (sigpipe [1]); sigpipe [1] = 0;
1151
1152	loop_destroy (EV_A);	1392	loop_destroy (EV_A);
1153	}	1393	}
1154		1394
1155	void	1395	void
1156	ev_default_fork (void)	1396	ev_default_fork (void)
…		…
1158	#if EV_MULTIPLICITY	1398	#if EV_MULTIPLICITY
1159	struct ev_loop *loop = ev_default_loop_ptr;	1399	struct ev_loop *loop = ev_default_loop_ptr;
1160	#endif	1400	#endif
1161		1401
1162	if (backend)	1402	if (backend)
1163	postfork = 1;	1403	postfork = 1; /* must be in line with ev_loop_fork */
1164	}	1404	}
1165		1405
1166	/*****************************************************************************/	1406	/*****************************************************************************/
		1407
		1408	void
		1409	ev_invoke (EV_P_ void *w, int revents)
		1410	{
		1411	EV_CB_INVOKE ((W)w, revents);
		1412	}
1167		1413
1168	void inline_speed	1414	void inline_speed
1169	call_pending (EV_P)	1415	call_pending (EV_P)
1170	{	1416	{
1171	int pri;	1417	int pri;
…		…
1188	void inline_size	1434	void inline_size
1189	timers_reify (EV_P)	1435	timers_reify (EV_P)
1190	{	1436	{
1191	while (timercnt && ((WT)timers [0])->at <= mn_now)	1437	while (timercnt && ((WT)timers [0])->at <= mn_now)
1192	{	1438	{
1193	ev_timer *w = timers [0];	1439	ev_timer *w = (ev_timer *)timers [0];
1194		1440
1195	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/	1441	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1196		1442
1197	/* first reschedule or stop timer */	1443	/* first reschedule or stop timer */
1198	if (w->repeat)	1444	if (w->repeat)
…		…
1201		1447
1202	((WT)w)->at += w->repeat;	1448	((WT)w)->at += w->repeat;
1203	if (((WT)w)->at < mn_now)	1449	if (((WT)w)->at < mn_now)
1204	((WT)w)->at = mn_now;	1450	((WT)w)->at = mn_now;
1205		1451
1206	downheap ((WT *)timers, timercnt, 0);	1452	downheap (timers, timercnt, 0);
1207	}	1453	}
1208	else	1454	else
1209	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1455	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1210		1456
1211	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1457	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1216	void inline_size	1462	void inline_size
1217	periodics_reify (EV_P)	1463	periodics_reify (EV_P)
1218	{	1464	{
1219	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1465	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1220	{	1466	{
1221	ev_periodic *w = periodics [0];	1467	ev_periodic *w = (ev_periodic *)periodics [0];
1222		1468
1223	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/	1469	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1224		1470
1225	/* first reschedule or stop timer */	1471	/* first reschedule or stop timer */
1226	if (w->reschedule_cb)	1472	if (w->reschedule_cb)
1227	{	1473	{
1228	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1474	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1229	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1475	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1230	downheap ((WT *)periodics, periodiccnt, 0);	1476	downheap (periodics, periodiccnt, 0);
1231	}	1477	}
1232	else if (w->interval)	1478	else if (w->interval)
1233	{	1479	{
1234	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1480	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1481	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1235	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1482	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1236	downheap ((WT *)periodics, periodiccnt, 0);	1483	downheap (periodics, periodiccnt, 0);
1237	}	1484	}
1238	else	1485	else
1239	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1486	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1240		1487
1241	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1488	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1248	int i;	1495	int i;
1249		1496
1250	/* adjust periodics after time jump */	1497	/* adjust periodics after time jump */
1251	for (i = 0; i < periodiccnt; ++i)	1498	for (i = 0; i < periodiccnt; ++i)
1252	{	1499	{
1253	ev_periodic *w = periodics [i];	1500	ev_periodic *w = (ev_periodic *)periodics [i];
1254		1501
1255	if (w->reschedule_cb)	1502	if (w->reschedule_cb)
1256	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1503	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1257	else if (w->interval)	1504	else if (w->interval)
1258	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1505	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1259	}	1506	}
1260		1507
1261	/* now rebuild the heap */	1508	/* now rebuild the heap */
1262	for (i = periodiccnt >> 1; i--; )	1509	for (i = periodiccnt >> 1; i--; )
1263	downheap ((WT *)periodics, periodiccnt, i);	1510	downheap (periodics, periodiccnt, i);
1264	}	1511	}
1265	#endif	1512	#endif
1266		1513
1267	#if EV_IDLE_ENABLE	1514	#if EV_IDLE_ENABLE
1268	void inline_size	1515	void inline_size
…		…
1285	}	1532	}
1286	}	1533	}
1287	}	1534	}
1288	#endif	1535	#endif
1289		1536
1290	int inline_size	1537	void inline_speed
1291	time_update_monotonic (EV_P)	1538	time_update (EV_P_ ev_tstamp max_block)
1292	{	1539	{
		1540	int i;
		1541
		1542	#if EV_USE_MONOTONIC
		1543	if (expect_true (have_monotonic))
		1544	{
		1545	ev_tstamp odiff = rtmn_diff;
		1546
1293	mn_now = get_clock ();	1547	mn_now = get_clock ();
1294		1548
		1549	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1550	/* interpolate in the meantime */
1295	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1551	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1296	{	1552	{
1297	ev_rt_now = rtmn_diff + mn_now;	1553	ev_rt_now = rtmn_diff + mn_now;
1298	return 0;	1554	return;
1299	}	1555	}
1300	else	1556
1301	{
1302	now_floor = mn_now;	1557	now_floor = mn_now;
1303	ev_rt_now = ev_time ();	1558	ev_rt_now = ev_time ();
1304	return 1;
1305	}
1306	}
1307		1559
1308	void inline_size	1560	/* loop a few times, before making important decisions.
1309	time_update (EV_P)	1561	* on the choice of "4": one iteration isn't enough,
1310	{	1562	* in case we get preempted during the calls to
1311	int i;	1563	* ev_time and get_clock. a second call is almost guaranteed
1312		1564	* to succeed in that case, though. and looping a few more times
1313	#if EV_USE_MONOTONIC	1565	* doesn't hurt either as we only do this on time-jumps or
1314	if (expect_true (have_monotonic))	1566	* in the unlikely event of having been preempted here.
1315	{	1567	*/
1316	if (time_update_monotonic (EV_A))	1568	for (i = 4; --i; )
1317	{	1569	{
1318	ev_tstamp odiff = rtmn_diff;
1319
1320	/* loop a few times, before making important decisions.
1321	* on the choice of "4": one iteration isn't enough,
1322	* in case we get preempted during the calls to
1323	* ev_time and get_clock. a second call is almost guaranteed
1324	* to succeed in that case, though. and looping a few more times
1325	* doesn't hurt either as we only do this on time-jumps or
1326	* in the unlikely event of having been preempted here.
1327	*/
1328	for (i = 4; --i; )
1329	{
1330	rtmn_diff = ev_rt_now - mn_now;	1570	rtmn_diff = ev_rt_now - mn_now;
1331		1571
1332	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1572	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1333	return; /* all is well */	1573	return; /* all is well */
1334		1574
1335	ev_rt_now = ev_time ();	1575	ev_rt_now = ev_time ();
1336	mn_now = get_clock ();	1576	mn_now = get_clock ();
1337	now_floor = mn_now;	1577	now_floor = mn_now;
1338	}	1578	}
1339		1579
1340	# if EV_PERIODIC_ENABLE	1580	# if EV_PERIODIC_ENABLE
1341	periodics_reschedule (EV_A);	1581	periodics_reschedule (EV_A);
1342	# endif	1582	# endif
1343	/* no timer adjustment, as the monotonic clock doesn't jump */	1583	/* no timer adjustment, as the monotonic clock doesn't jump */
1344	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1584	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1345	}
1346	}	1585	}
1347	else	1586	else
1348	#endif	1587	#endif
1349	{	1588	{
1350	ev_rt_now = ev_time ();	1589	ev_rt_now = ev_time ();
1351		1590
1352	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1591	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1353	{	1592	{
1354	#if EV_PERIODIC_ENABLE	1593	#if EV_PERIODIC_ENABLE
1355	periodics_reschedule (EV_A);	1594	periodics_reschedule (EV_A);
1356	#endif	1595	#endif
1357
1358	/* adjust timers. this is easy, as the offset is the same for all of them */	1596	/* adjust timers. this is easy, as the offset is the same for all of them */
1359	for (i = 0; i < timercnt; ++i)	1597	for (i = 0; i < timercnt; ++i)
1360	((WT)timers [i])->at += ev_rt_now - mn_now;	1598	((WT)timers [i])->at += ev_rt_now - mn_now;
1361	}	1599	}
1362		1600
…		…
1379	static int loop_done;	1617	static int loop_done;
1380		1618
1381	void	1619	void
1382	ev_loop (EV_P_ int flags)	1620	ev_loop (EV_P_ int flags)
1383	{	1621	{
1384	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1622	loop_done = EVUNLOOP_CANCEL;
1385	? EVUNLOOP_ONE
1386	: EVUNLOOP_CANCEL;
1387		1623
1388	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1624	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1389		1625
1390	do	1626	do
1391	{	1627	{
…		…
1406	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1642	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1407	call_pending (EV_A);	1643	call_pending (EV_A);
1408	}	1644	}
1409	#endif	1645	#endif
1410		1646
1411	/* queue check watchers (and execute them) */	1647	/* queue prepare watchers (and execute them) */
1412	if (expect_false (preparecnt))	1648	if (expect_false (preparecnt))
1413	{	1649	{
1414	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1650	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1415	call_pending (EV_A);	1651	call_pending (EV_A);
1416	}	1652	}
…		…
1425	/* update fd-related kernel structures */	1661	/* update fd-related kernel structures */
1426	fd_reify (EV_A);	1662	fd_reify (EV_A);
1427		1663
1428	/* calculate blocking time */	1664	/* calculate blocking time */
1429	{	1665	{
1430	ev_tstamp block;	1666	ev_tstamp waittime = 0.;
		1667	ev_tstamp sleeptime = 0.;
1431		1668
1432	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1669	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1433	block = 0.; /* do not block at all */
1434	else
1435	{	1670	{
1436	/* update time to cancel out callback processing overhead */	1671	/* update time to cancel out callback processing overhead */
1437	#if EV_USE_MONOTONIC
1438	if (expect_true (have_monotonic))
1439	time_update_monotonic (EV_A);	1672	time_update (EV_A_ 1e100);
1440	else
1441	#endif
1442	{
1443	ev_rt_now = ev_time ();
1444	mn_now = ev_rt_now;
1445	}
1446		1673
1447	block = MAX_BLOCKTIME;	1674	waittime = MAX_BLOCKTIME;
1448		1675
1449	if (timercnt)	1676	if (timercnt)
1450	{	1677	{
1451	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1678	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1452	if (block > to) block = to;	1679	if (waittime > to) waittime = to;
1453	}	1680	}
1454		1681
1455	#if EV_PERIODIC_ENABLE	1682	#if EV_PERIODIC_ENABLE
1456	if (periodiccnt)	1683	if (periodiccnt)
1457	{	1684	{
1458	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1685	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1459	if (block > to) block = to;	1686	if (waittime > to) waittime = to;
1460	}	1687	}
1461	#endif	1688	#endif
1462		1689
1463	if (expect_false (block < 0.)) block = 0.;	1690	if (expect_false (waittime < timeout_blocktime))
		1691	waittime = timeout_blocktime;
		1692
		1693	sleeptime = waittime - backend_fudge;
		1694
		1695	if (expect_true (sleeptime > io_blocktime))
		1696	sleeptime = io_blocktime;
		1697
		1698	if (sleeptime)
		1699	{
		1700	ev_sleep (sleeptime);
		1701	waittime -= sleeptime;
		1702	}
1464	}	1703	}
1465		1704
1466	++loop_count;	1705	++loop_count;
1467	backend_poll (EV_A_ block);	1706	backend_poll (EV_A_ waittime);
		1707
		1708	/* update ev_rt_now, do magic */
		1709	time_update (EV_A_ waittime + sleeptime);
1468	}	1710	}
1469
1470	/* update ev_rt_now, do magic */
1471	time_update (EV_A);
1472		1711
1473	/* queue pending timers and reschedule them */	1712	/* queue pending timers and reschedule them */
1474	timers_reify (EV_A); /* relative timers called last */	1713	timers_reify (EV_A); /* relative timers called last */
1475	#if EV_PERIODIC_ENABLE	1714	#if EV_PERIODIC_ENABLE
1476	periodics_reify (EV_A); /* absolute timers called first */	1715	periodics_reify (EV_A); /* absolute timers called first */
…		…
1484	/* queue check watchers, to be executed first */	1723	/* queue check watchers, to be executed first */
1485	if (expect_false (checkcnt))	1724	if (expect_false (checkcnt))
1486	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1725	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1487		1726
1488	call_pending (EV_A);	1727	call_pending (EV_A);
1489
1490	}	1728	}
1491	while (expect_true (activecnt && !loop_done));	1729	while (expect_true (
		1730	activecnt
		1731	&& !loop_done
		1732	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1733	));
1492		1734
1493	if (loop_done == EVUNLOOP_ONE)	1735	if (loop_done == EVUNLOOP_ONE)
1494	loop_done = EVUNLOOP_CANCEL;	1736	loop_done = EVUNLOOP_CANCEL;
1495	}	1737	}
1496		1738
…		…
1538	ev_clear_pending (EV_P_ void *w)	1780	ev_clear_pending (EV_P_ void *w)
1539	{	1781	{
1540	W w_ = (W)w;	1782	W w_ = (W)w;
1541	int pending = w_->pending;	1783	int pending = w_->pending;
1542		1784
1543	if (!pending)	1785	if (expect_true (pending))
		1786	{
		1787	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1788	w_->pending = 0;
		1789	p->w = 0;
		1790	return p->events;
		1791	}
		1792	else
1544	return 0;	1793	return 0;
1545
1546	w_->pending = 0;
1547	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1548	p->w = 0;
1549
1550	return p->events;
1551	}	1794	}
1552		1795
1553	void inline_size	1796	void inline_size
1554	pri_adjust (EV_P_ W w)	1797	pri_adjust (EV_P_ W w)
1555	{	1798	{
…		…
1574	w->active = 0;	1817	w->active = 0;
1575	}	1818	}
1576		1819
1577	/*****************************************************************************/	1820	/*****************************************************************************/
1578		1821
1579	void	1822	void noinline
1580	ev_io_start (EV_P_ ev_io *w)	1823	ev_io_start (EV_P_ ev_io *w)
1581	{	1824	{
1582	int fd = w->fd;	1825	int fd = w->fd;
1583		1826
1584	if (expect_false (ev_is_active (w)))	1827	if (expect_false (ev_is_active (w)))
…		…
1586		1829
1587	assert (("ev_io_start called with negative fd", fd >= 0));	1830	assert (("ev_io_start called with negative fd", fd >= 0));
1588		1831
1589	ev_start (EV_A_ (W)w, 1);	1832	ev_start (EV_A_ (W)w, 1);
1590	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1833	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1591	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1834	wlist_add (&anfds[fd].head, (WL)w);
1592		1835
1593	fd_change (EV_A_ fd);	1836	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1837	w->events &= ~EV_IOFDSET;
1594	}	1838	}
1595		1839
1596	void	1840	void noinline
1597	ev_io_stop (EV_P_ ev_io *w)	1841	ev_io_stop (EV_P_ ev_io *w)
1598	{	1842	{
1599	clear_pending (EV_A_ (W)w);	1843	clear_pending (EV_A_ (W)w);
1600	if (expect_false (!ev_is_active (w)))	1844	if (expect_false (!ev_is_active (w)))
1601	return;	1845	return;
1602		1846
1603	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1847	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1604		1848
1605	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1849	wlist_del (&anfds[w->fd].head, (WL)w);
1606	ev_stop (EV_A_ (W)w);	1850	ev_stop (EV_A_ (W)w);
1607		1851
1608	fd_change (EV_A_ w->fd);	1852	fd_change (EV_A_ w->fd, 1);
1609	}	1853	}
1610		1854
1611	void	1855	void noinline
1612	ev_timer_start (EV_P_ ev_timer *w)	1856	ev_timer_start (EV_P_ ev_timer *w)
1613	{	1857	{
1614	if (expect_false (ev_is_active (w)))	1858	if (expect_false (ev_is_active (w)))
1615	return;	1859	return;
1616		1860
1617	((WT)w)->at += mn_now;	1861	((WT)w)->at += mn_now;
1618		1862
1619	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1863	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1620		1864
1621	ev_start (EV_A_ (W)w, ++timercnt);	1865	ev_start (EV_A_ (W)w, ++timercnt);
1622	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1866	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1623	timers [timercnt - 1] = w;	1867	timers [timercnt - 1] = (WT)w;
1624	upheap ((WT *)timers, timercnt - 1);	1868	upheap (timers, timercnt - 1);
1625		1869
1626	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	1870	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1627	}	1871	}
1628		1872
1629	void	1873	void noinline
1630	ev_timer_stop (EV_P_ ev_timer *w)	1874	ev_timer_stop (EV_P_ ev_timer *w)
1631	{	1875	{
1632	clear_pending (EV_A_ (W)w);	1876	clear_pending (EV_A_ (W)w);
1633	if (expect_false (!ev_is_active (w)))	1877	if (expect_false (!ev_is_active (w)))
1634	return;	1878	return;
1635		1879
1636	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1880	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1637		1881
1638	{	1882	{
1639	int active = ((W)w)->active;	1883	int active = ((W)w)->active;
1640		1884
1641	if (expect_true (--active < --timercnt))	1885	if (expect_true (--active < --timercnt))
1642	{	1886	{
1643	timers [active] = timers [timercnt];	1887	timers [active] = timers [timercnt];
1644	adjustheap ((WT *)timers, timercnt, active);	1888	adjustheap (timers, timercnt, active);
1645	}	1889	}
1646	}	1890	}
1647		1891
1648	((WT)w)->at -= mn_now;	1892	((WT)w)->at -= mn_now;
1649		1893
1650	ev_stop (EV_A_ (W)w);	1894	ev_stop (EV_A_ (W)w);
1651	}	1895	}
1652		1896
1653	void	1897	void noinline
1654	ev_timer_again (EV_P_ ev_timer *w)	1898	ev_timer_again (EV_P_ ev_timer *w)
1655	{	1899	{
1656	if (ev_is_active (w))	1900	if (ev_is_active (w))
1657	{	1901	{
1658	if (w->repeat)	1902	if (w->repeat)
1659	{	1903	{
1660	((WT)w)->at = mn_now + w->repeat;	1904	((WT)w)->at = mn_now + w->repeat;
1661	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1905	adjustheap (timers, timercnt, ((W)w)->active - 1);
1662	}	1906	}
1663	else	1907	else
1664	ev_timer_stop (EV_A_ w);	1908	ev_timer_stop (EV_A_ w);
1665	}	1909	}
1666	else if (w->repeat)	1910	else if (w->repeat)
…		…
1669	ev_timer_start (EV_A_ w);	1913	ev_timer_start (EV_A_ w);
1670	}	1914	}
1671	}	1915	}
1672		1916
1673	#if EV_PERIODIC_ENABLE	1917	#if EV_PERIODIC_ENABLE
1674	void	1918	void noinline
1675	ev_periodic_start (EV_P_ ev_periodic *w)	1919	ev_periodic_start (EV_P_ ev_periodic *w)
1676	{	1920	{
1677	if (expect_false (ev_is_active (w)))	1921	if (expect_false (ev_is_active (w)))
1678	return;	1922	return;
1679		1923
…		…
1681	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1925	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1682	else if (w->interval)	1926	else if (w->interval)
1683	{	1927	{
1684	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1928	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1685	/* this formula differs from the one in periodic_reify because we do not always round up */	1929	/* this formula differs from the one in periodic_reify because we do not always round up */
1686	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1930	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1687	}	1931	}
		1932	else
		1933	((WT)w)->at = w->offset;
1688		1934
1689	ev_start (EV_A_ (W)w, ++periodiccnt);	1935	ev_start (EV_A_ (W)w, ++periodiccnt);
1690	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1936	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1691	periodics [periodiccnt - 1] = w;	1937	periodics [periodiccnt - 1] = (WT)w;
1692	upheap ((WT *)periodics, periodiccnt - 1);	1938	upheap (periodics, periodiccnt - 1);
1693		1939
1694	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	1940	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1695	}	1941	}
1696		1942
1697	void	1943	void noinline
1698	ev_periodic_stop (EV_P_ ev_periodic *w)	1944	ev_periodic_stop (EV_P_ ev_periodic *w)
1699	{	1945	{
1700	clear_pending (EV_A_ (W)w);	1946	clear_pending (EV_A_ (W)w);
1701	if (expect_false (!ev_is_active (w)))	1947	if (expect_false (!ev_is_active (w)))
1702	return;	1948	return;
1703		1949
1704	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1950	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1705		1951
1706	{	1952	{
1707	int active = ((W)w)->active;	1953	int active = ((W)w)->active;
1708		1954
1709	if (expect_true (--active < --periodiccnt))	1955	if (expect_true (--active < --periodiccnt))
1710	{	1956	{
1711	periodics [active] = periodics [periodiccnt];	1957	periodics [active] = periodics [periodiccnt];
1712	adjustheap ((WT *)periodics, periodiccnt, active);	1958	adjustheap (periodics, periodiccnt, active);
1713	}	1959	}
1714	}	1960	}
1715		1961
1716	ev_stop (EV_A_ (W)w);	1962	ev_stop (EV_A_ (W)w);
1717	}	1963	}
1718		1964
1719	void	1965	void noinline
1720	ev_periodic_again (EV_P_ ev_periodic *w)	1966	ev_periodic_again (EV_P_ ev_periodic *w)
1721	{	1967	{
1722	/* TODO: use adjustheap and recalculation */	1968	/* TODO: use adjustheap and recalculation */
1723	ev_periodic_stop (EV_A_ w);	1969	ev_periodic_stop (EV_A_ w);
1724	ev_periodic_start (EV_A_ w);	1970	ev_periodic_start (EV_A_ w);
…		…
1727		1973
1728	#ifndef SA_RESTART	1974	#ifndef SA_RESTART
1729	# define SA_RESTART 0	1975	# define SA_RESTART 0
1730	#endif	1976	#endif
1731		1977
1732	void	1978	void noinline
1733	ev_signal_start (EV_P_ ev_signal *w)	1979	ev_signal_start (EV_P_ ev_signal *w)
1734	{	1980	{
1735	#if EV_MULTIPLICITY	1981	#if EV_MULTIPLICITY
1736	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1982	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1737	#endif	1983	#endif
1738	if (expect_false (ev_is_active (w)))	1984	if (expect_false (ev_is_active (w)))
1739	return;	1985	return;
1740		1986
1741	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1987	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1742		1988
		1989	evpipe_init (EV_A);
		1990
		1991	{
		1992	#ifndef _WIN32
		1993	sigset_t full, prev;
		1994	sigfillset (&full);
		1995	sigprocmask (SIG_SETMASK, &full, &prev);
		1996	#endif
		1997
		1998	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1999
		2000	#ifndef _WIN32
		2001	sigprocmask (SIG_SETMASK, &prev, 0);
		2002	#endif
		2003	}
		2004
1743	ev_start (EV_A_ (W)w, 1);	2005	ev_start (EV_A_ (W)w, 1);
1744	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1745	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	2006	wlist_add (&signals [w->signum - 1].head, (WL)w);
1746		2007
1747	if (!((WL)w)->next)	2008	if (!((WL)w)->next)
1748	{	2009	{
1749	#if _WIN32	2010	#if _WIN32
1750	signal (w->signum, sighandler);	2011	signal (w->signum, ev_sighandler);
1751	#else	2012	#else
1752	struct sigaction sa;	2013	struct sigaction sa;
1753	sa.sa_handler = sighandler;	2014	sa.sa_handler = ev_sighandler;
1754	sigfillset (&sa.sa_mask);	2015	sigfillset (&sa.sa_mask);
1755	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2016	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1756	sigaction (w->signum, &sa, 0);	2017	sigaction (w->signum, &sa, 0);
1757	#endif	2018	#endif
1758	}	2019	}
1759	}	2020	}
1760		2021
1761	void	2022	void noinline
1762	ev_signal_stop (EV_P_ ev_signal *w)	2023	ev_signal_stop (EV_P_ ev_signal *w)
1763	{	2024	{
1764	clear_pending (EV_A_ (W)w);	2025	clear_pending (EV_A_ (W)w);
1765	if (expect_false (!ev_is_active (w)))	2026	if (expect_false (!ev_is_active (w)))
1766	return;	2027	return;
1767		2028
1768	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	2029	wlist_del (&signals [w->signum - 1].head, (WL)w);
1769	ev_stop (EV_A_ (W)w);	2030	ev_stop (EV_A_ (W)w);
1770		2031
1771	if (!signals [w->signum - 1].head)	2032	if (!signals [w->signum - 1].head)
1772	signal (w->signum, SIG_DFL);	2033	signal (w->signum, SIG_DFL);
1773	}	2034	}
…		…
1780	#endif	2041	#endif
1781	if (expect_false (ev_is_active (w)))	2042	if (expect_false (ev_is_active (w)))
1782	return;	2043	return;
1783		2044
1784	ev_start (EV_A_ (W)w, 1);	2045	ev_start (EV_A_ (W)w, 1);
1785	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2046	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1786	}	2047	}
1787		2048
1788	void	2049	void
1789	ev_child_stop (EV_P_ ev_child *w)	2050	ev_child_stop (EV_P_ ev_child *w)
1790	{	2051	{
1791	clear_pending (EV_A_ (W)w);	2052	clear_pending (EV_A_ (W)w);
1792	if (expect_false (!ev_is_active (w)))	2053	if (expect_false (!ev_is_active (w)))
1793	return;	2054	return;
1794		2055
1795	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2056	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1796	ev_stop (EV_A_ (W)w);	2057	ev_stop (EV_A_ (W)w);
1797	}	2058	}
1798		2059
1799	#if EV_STAT_ENABLE	2060	#if EV_STAT_ENABLE
1800		2061
…		…
2142		2403
2143	#if EV_EMBED_ENABLE	2404	#if EV_EMBED_ENABLE
2144	void noinline	2405	void noinline
2145	ev_embed_sweep (EV_P_ ev_embed *w)	2406	ev_embed_sweep (EV_P_ ev_embed *w)
2146	{	2407	{
2147	ev_loop (w->loop, EVLOOP_NONBLOCK);	2408	ev_loop (w->other, EVLOOP_NONBLOCK);
2148	}	2409	}
2149		2410
2150	static void	2411	static void
2151	embed_cb (EV_P_ ev_io *io, int revents)	2412	embed_io_cb (EV_P_ ev_io *io, int revents)
2152	{	2413	{
2153	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2414	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2154		2415
2155	if (ev_cb (w))	2416	if (ev_cb (w))
2156	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2417	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2157	else	2418	else
2158	ev_embed_sweep (loop, w);	2419	ev_loop (w->other, EVLOOP_NONBLOCK);
2159	}	2420	}
		2421
		2422	static void
		2423	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2424	{
		2425	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2426
		2427	{
		2428	struct ev_loop *loop = w->other;
		2429
		2430	while (fdchangecnt)
		2431	{
		2432	fd_reify (EV_A);
		2433	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2434	}
		2435	}
		2436	}
		2437
		2438	#if 0
		2439	static void
		2440	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2441	{
		2442	ev_idle_stop (EV_A_ idle);
		2443	}
		2444	#endif
2160		2445
2161	void	2446	void
2162	ev_embed_start (EV_P_ ev_embed *w)	2447	ev_embed_start (EV_P_ ev_embed *w)
2163	{	2448	{
2164	if (expect_false (ev_is_active (w)))	2449	if (expect_false (ev_is_active (w)))
2165	return;	2450	return;
2166		2451
2167	{	2452	{
2168	struct ev_loop *loop = w->loop;	2453	struct ev_loop *loop = w->other;
2169	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2454	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2170	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2455	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2171	}	2456	}
2172		2457
2173	ev_set_priority (&w->io, ev_priority (w));	2458	ev_set_priority (&w->io, ev_priority (w));
2174	ev_io_start (EV_A_ &w->io);	2459	ev_io_start (EV_A_ &w->io);
2175		2460
		2461	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2462	ev_set_priority (&w->prepare, EV_MINPRI);
		2463	ev_prepare_start (EV_A_ &w->prepare);
		2464
		2465	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2466
2176	ev_start (EV_A_ (W)w, 1);	2467	ev_start (EV_A_ (W)w, 1);
2177	}	2468	}
2178		2469
2179	void	2470	void
2180	ev_embed_stop (EV_P_ ev_embed *w)	2471	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2182	clear_pending (EV_A_ (W)w);	2473	clear_pending (EV_A_ (W)w);
2183	if (expect_false (!ev_is_active (w)))	2474	if (expect_false (!ev_is_active (w)))
2184	return;	2475	return;
2185		2476
2186	ev_io_stop (EV_A_ &w->io);	2477	ev_io_stop (EV_A_ &w->io);
		2478	ev_prepare_stop (EV_A_ &w->prepare);
2187		2479
2188	ev_stop (EV_A_ (W)w);	2480	ev_stop (EV_A_ (W)w);
2189	}	2481	}
2190	#endif	2482	#endif
2191		2483
…		…
2216		2508
2217	ev_stop (EV_A_ (W)w);	2509	ev_stop (EV_A_ (W)w);
2218	}	2510	}
2219	#endif	2511	#endif
2220		2512
		2513	#if EV_ASYNC_ENABLE
		2514	void
		2515	ev_async_start (EV_P_ ev_async *w)
		2516	{
		2517	if (expect_false (ev_is_active (w)))
		2518	return;
		2519
		2520	evpipe_init (EV_A);
		2521
		2522	ev_start (EV_A_ (W)w, ++asynccnt);
		2523	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2524	asyncs [asynccnt - 1] = w;
		2525	}
		2526
		2527	void
		2528	ev_async_stop (EV_P_ ev_async *w)
		2529	{
		2530	clear_pending (EV_A_ (W)w);
		2531	if (expect_false (!ev_is_active (w)))
		2532	return;
		2533
		2534	{
		2535	int active = ((W)w)->active;
		2536	asyncs [active - 1] = asyncs [--asynccnt];
		2537	((W)asyncs [active - 1])->active = active;
		2538	}
		2539
		2540	ev_stop (EV_A_ (W)w);
		2541	}
		2542
		2543	void
		2544	ev_async_send (EV_P_ ev_async *w)
		2545	{
		2546	w->sent = 1;
		2547	evpipe_write (EV_A_ &gotasync);
		2548	}
		2549	#endif
		2550
2221	/*****************************************************************************/	2551	/*****************************************************************************/
2222		2552
2223	struct ev_once	2553	struct ev_once
2224	{	2554	{
2225	ev_io io;	2555	ev_io io;
…		…
2280	ev_timer_set (&once->to, timeout, 0.);	2610	ev_timer_set (&once->to, timeout, 0.);
2281	ev_timer_start (EV_A_ &once->to);	2611	ev_timer_start (EV_A_ &once->to);
2282	}	2612	}
2283	}	2613	}
2284		2614
		2615	#if EV_MULTIPLICITY
		2616	#include "ev_wrap.h"
		2617	#endif
		2618
2285	#ifdef __cplusplus	2619	#ifdef __cplusplus
2286	}	2620	}
2287	#endif	2621	#endif
2288		2622

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines