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Comparing libev/ev.c (file contents):
Revision 1.146 by root, Tue Nov 27 09:17:51 2007 UTC vs.
Revision 1.211 by root, Tue Feb 19 17:09:28 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
…		…
94	# else	110	# else
95	# define EV_USE_PORT 0	111	# define EV_USE_PORT 0
96	# endif	112	# endif
97	# endif	113	# endif
98		114
		115	# ifndef EV_USE_INOTIFY
		116	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		117	# define EV_USE_INOTIFY 1
		118	# else
		119	# define EV_USE_INOTIFY 0
		120	# endif
		121	# endif
		122
99	#endif	123	#endif
100		124
101	#include <math.h>	125	#include <math.h>
102	#include <stdlib.h>	126	#include <stdlib.h>
103	#include <fcntl.h>	127	#include <fcntl.h>
…		…
109	#include <errno.h>	133	#include <errno.h>
110	#include <sys/types.h>	134	#include <sys/types.h>
111	#include <time.h>	135	#include <time.h>
112		136
113	#include <signal.h>	137	#include <signal.h>
		138
		139	#ifdef EV_H
		140	# include EV_H
		141	#else
		142	# include "ev.h"
		143	#endif
114		144
115	#ifndef _WIN32	145	#ifndef _WIN32
116	# include <sys/time.h>	146	# include <sys/time.h>
117	# include <sys/wait.h>	147	# include <sys/wait.h>
118	# include <unistd.h>	148	# include <unistd.h>
…		…
132		162
133	#ifndef EV_USE_REALTIME	163	#ifndef EV_USE_REALTIME
134	# define EV_USE_REALTIME 0	164	# define EV_USE_REALTIME 0
135	#endif	165	#endif
136		166
		167	#ifndef EV_USE_NANOSLEEP
		168	# define EV_USE_NANOSLEEP 0
		169	#endif
		170
137	#ifndef EV_USE_SELECT	171	#ifndef EV_USE_SELECT
138	# define EV_USE_SELECT 1	172	# define EV_USE_SELECT 1
139	#endif	173	#endif
140		174
141	#ifndef EV_USE_POLL	175	#ifndef EV_USE_POLL
…		…
156		190
157	#ifndef EV_USE_PORT	191	#ifndef EV_USE_PORT
158	# define EV_USE_PORT 0	192	# define EV_USE_PORT 0
159	#endif	193	#endif
160		194
		195	#ifndef EV_USE_INOTIFY
		196	# define EV_USE_INOTIFY 0
		197	#endif
		198
		199	#ifndef EV_PID_HASHSIZE
		200	# if EV_MINIMAL
		201	# define EV_PID_HASHSIZE 1
		202	# else
		203	# define EV_PID_HASHSIZE 16
		204	# endif
		205	#endif
		206
		207	#ifndef EV_INOTIFY_HASHSIZE
		208	# if EV_MINIMAL
		209	# define EV_INOTIFY_HASHSIZE 1
		210	# else
		211	# define EV_INOTIFY_HASHSIZE 16
		212	# endif
		213	#endif
		214
161	/**/	215	/**/
162		216
163	#ifndef CLOCK_MONOTONIC	217	#ifndef CLOCK_MONOTONIC
164	# undef EV_USE_MONOTONIC	218	# undef EV_USE_MONOTONIC
165	# define EV_USE_MONOTONIC 0	219	# define EV_USE_MONOTONIC 0
…		…
168	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
169	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
170	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
171	#endif	225	#endif
172		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
173	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
174	# include <winsock.h>	243	# include <winsock.h>
175	#endif	244	#endif
176		245
177	/**/	246	/**/
178		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 */
		257
179	#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) */
180	#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) */
181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182	/*#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 */
183		261
184	#ifdef EV_H
185	# include EV_H
186	#else
187	# include "ev.h"
188	#endif
189
190	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
191	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
192	# define inline_size static inline /* inline for codesize */
193	# if EV_MINIMAL
194	# define noinline __attribute__ ((noinline))	264	# define noinline __attribute__ ((noinline))
195	# define inline_speed static noinline
196	# else
197	# define noinline
198	# define inline_speed static inline
199	# endif
200	#else	265	#else
201	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
202	# define inline_speed static
203	# define inline_size static
204	# define noinline	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
205	#endif	271	#endif
206		272
207	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
208	#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
209		282
210	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
211	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
212		285
213	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
214	#define EMPTY2(a,b) /* used to suppress some warnings */	287	#define EMPTY2(a,b) /* used to suppress some warnings */
215		288
216	typedef ev_watcher *W;	289	typedef ev_watcher *W;
217	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
218	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
219		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 */
220	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
221		298
222	#ifdef _WIN32	299	#ifdef _WIN32
223	# include "ev_win32.c"	300	# include "ev_win32.c"
224	#endif	301	#endif
225		302
…		…
254	ev_set_allocator (void *(*cb)(void *ptr, long size))	331	ev_set_allocator (void *(*cb)(void *ptr, long size))
255	{	332	{
256	alloc = cb;	333	alloc = cb;
257	}	334	}
258		335
259	static void *	336	inline_speed void *
260	ev_realloc (void *ptr, long size)	337	ev_realloc (void *ptr, long size)
261	{	338	{
262	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	339	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
263		340
264	if (!ptr && size)	341	if (!ptr && size)
…		…
288	typedef struct	365	typedef struct
289	{	366	{
290	W w;	367	W w;
291	int events;	368	int events;
292	} ANPENDING;	369	} ANPENDING;
		370
		371	#if EV_USE_INOTIFY
		372	typedef struct
		373	{
		374	WL head;
		375	} ANFS;
		376	#endif
293		377
294	#if EV_MULTIPLICITY	378	#if EV_MULTIPLICITY
295		379
296	struct ev_loop	380	struct ev_loop
297	{	381	{
…		…
354	{	438	{
355	return ev_rt_now;	439	return ev_rt_now;
356	}	440	}
357	#endif	441	#endif
358		442
359	#define array_roundsize(type,n) (((n) | 4) & ~3)	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 (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
		470	int inline_size
		471	array_nextsize (int elem, int cur, int cnt)
		472	{
		473	int ncur = cur + 1;
		474
		475	do
		476	ncur <<= 1;
		477	while (cnt > ncur);
		478
		479	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		480	if (elem * ncur > 4096)
		481	{
		482	ncur *= elem;
		483	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		484	ncur = ncur - sizeof (void *) * 4;
		485	ncur /= elem;
		486	}
		487
		488	return ncur;
		489	}
		490
		491	static noinline void *
		492	array_realloc (int elem, void *base, int *cur, int cnt)
		493	{
		494	*cur = array_nextsize (elem, *cur, cnt);
		495	return ev_realloc (base, elem * *cur);
		496	}
360		497
361	#define array_needsize(type,base,cur,cnt,init) \	498	#define array_needsize(type,base,cur,cnt,init) \
362	if (expect_false ((cnt) > cur)) \	499	if (expect_false ((cnt) > (cur))) \
363	{ \	500	{ \
364	int newcnt = cur; \	501	int ocur_ = (cur); \
365	do \	502	(base) = (type *)array_realloc \
366	{ \	503	(sizeof (type), (base), &(cur), (cnt)); \
367	newcnt = array_roundsize (type, newcnt << 1); \	504	init ((base) + (ocur_), (cur) - ocur_); \
368	} \
369	while ((cnt) > newcnt); \
370	\
371	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
372	init (base + cur, newcnt - cur); \
373	cur = newcnt; \
374	}	505	}
375		506
		507	#if 0
376	#define array_slim(type,stem) \	508	#define array_slim(type,stem) \
377	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	509	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
378	{ \	510	{ \
379	stem ## max = array_roundsize (stem ## cnt >> 1); \	511	stem ## max = array_roundsize (stem ## cnt >> 1); \
380	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	512	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
381	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	513	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
382	}	514	}
		515	#endif
383		516
384	#define array_free(stem, idx) \	517	#define array_free(stem, idx) \
385	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	518	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
386		519
387	/*****************************************************************************/	520	/*****************************************************************************/
388		521
389	void noinline	522	void noinline
390	ev_feed_event (EV_P_ void *w, int revents)	523	ev_feed_event (EV_P_ void *w, int revents)
391	{	524	{
392	W w_ = (W)w;	525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
393		527
394	if (expect_false (w_->pending))	528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events |= revents;
		530	else
395	{	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_;
396	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	535	pendings [pri][w_->pending - 1].events = revents;
397	return;
398	}	536	}
399
400	w_->pending = ++pendingcnt [ABSPRI (w_)];
401	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
402	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
403	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
404	}	537	}
405		538
406	void inline_size	539	void inline_speed
407	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
408	{	541	{
409	int i;	542	int i;
410		543
411	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
443	}	576	}
444		577
445	void	578	void
446	ev_feed_fd_event (EV_P_ int fd, int revents)	579	ev_feed_fd_event (EV_P_ int fd, int revents)
447	{	580	{
		581	if (fd >= 0 && fd < anfdmax)
448	fd_event (EV_A_ fd, revents);	582	fd_event (EV_A_ fd, revents);
449	}	583	}
450		584
451	void inline_size	585	void inline_size
452	fd_reify (EV_P)	586	fd_reify (EV_P)
453	{	587	{
…		…
457	{	591	{
458	int fd = fdchanges [i];	592	int fd = fdchanges [i];
459	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
460	ev_io *w;	594	ev_io *w;
461		595
462	int events = 0;	596	unsigned char events = 0;
463		597
464	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)
465	events |= w->events;	599	events |= (unsigned char)w->events;
466		600
467	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
468	if (events)	602	if (events)
469	{	603	{
470	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
471	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
472	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));
473	}	611	}
474	#endif	612	#endif
475		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
476	anfd->reify = 0;	618	anfd->reify = 0;
477
478	backend_modify (EV_A_ fd, anfd->events, events);
479	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	}
480	}	624	}
481		625
482	fdchangecnt = 0;	626	fdchangecnt = 0;
483	}	627	}
484		628
485	void inline_size	629	void inline_size
486	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
487	{	631	{
488	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
489	return;
490
491	anfds [fd].reify = 1;	633	anfds [fd].reify |= flags;
492		634
		635	if (expect_true (!reify))
		636	{
493	++fdchangecnt;	637	++fdchangecnt;
494	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
495	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
496	}	641	}
497		642
498	void inline_speed	643	void inline_speed
499	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
500	{	645	{
…		…
547	static void noinline	692	static void noinline
548	fd_rearm_all (EV_P)	693	fd_rearm_all (EV_P)
549	{	694	{
550	int fd;	695	int fd;
551		696
552	/* this should be highly optimised to not do anything but set a flag */
553	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
554	if (anfds [fd].events)	698	if (anfds [fd].events)
555	{	699	{
556	anfds [fd].events = 0;	700	anfds [fd].events = 0;
557	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET | 1);
558	}	702	}
559	}	703	}
560		704
561	/*****************************************************************************/	705	/*****************************************************************************/
562		706
563	void inline_speed	707	void inline_speed
564	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
565	{	709	{
566	WT w = heap [k];	710	WT w = heap [k];
567		711
568	while (k && heap [k >> 1]->at > w->at)	712	while (k)
569	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
570	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
571	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
572	k >>= 1;	721	k = p;
573	}	722	}
574		723
575	heap [k] = w;	724	heap [k] = w;
576	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
577
578	}	726	}
579		727
580	void inline_speed	728	void inline_speed
581	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
582	{	730	{
583	WT w = heap [k];	731	WT w = heap [k];
584		732
585	while (k < (N >> 1))	733	for (;;)
586	{	734	{
587	int j = k << 1;	735	int c = (k << 1) + 1;
588		736
589	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
590	++j;
591
592	if (w->at <= heap [j]->at)
593	break;	738	break;
594		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
595	heap [k] = heap [j];	746	heap [k] = heap [c];
596	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
597	k = j;	749	k = c;
598	}	750	}
599		751
600	heap [k] = w;	752	heap [k] = w;
601	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
602	}	754	}
…		…
611	/*****************************************************************************/	763	/*****************************************************************************/
612		764
613	typedef struct	765	typedef struct
614	{	766	{
615	WL head;	767	WL head;
616	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
617	} ANSIG;	769	} ANSIG;
618		770
619	static ANSIG *signals;	771	static ANSIG *signals;
620	static int signalmax;	772	static int signalmax;
621		773
622	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
623	static sig_atomic_t volatile gotsig;
624	static ev_io sigev;
625		775
626	void inline_size	776	void inline_size
627	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
628	{	778	{
629	while (count--)	779	while (count--)
…		…
633		783
634	++base;	784	++base;
635	}	785	}
636	}	786	}
637		787
638	static void	788	/*****************************************************************************/
639	sighandler (int signum)
640	{
641	#if _WIN32
642	signal (signum, sighandler);
643	#endif
644		789
645	signals [signum - 1].gotsig = 1;
646
647	if (!gotsig)
648	{
649	int old_errno = errno;
650	gotsig = 1;
651	write (sigpipe [1], &signum, 1);
652	errno = old_errno;
653	}
654	}
655
656	void noinline
657	ev_feed_signal_event (EV_P_ int signum)
658	{
659	WL w;
660
661	#if EV_MULTIPLICITY
662	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
663	#endif
664
665	--signum;
666
667	if (signum < 0 || signum >= signalmax)
668	return;
669
670	signals [signum].gotsig = 0;
671
672	for (w = signals [signum].head; w; w = w->next)
673	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
674	}
675
676	static void
677	sigcb (EV_P_ ev_io *iow, int revents)
678	{
679	int signum;
680
681	read (sigpipe [0], &revents, 1);
682	gotsig = 0;
683
684	for (signum = signalmax; signum--; )
685	if (signals [signum].gotsig)
686	ev_feed_signal_event (EV_A_ signum + 1);
687	}
688
689	void inline_size	790	void inline_speed
690	fd_intern (int fd)	791	fd_intern (int fd)
691	{	792	{
692	#ifdef _WIN32	793	#ifdef _WIN32
693	int arg = 1;	794	int arg = 1;
694	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	795	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
697	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
698	#endif	799	#endif
699	}	800	}
700		801
701	static void noinline	802	static void noinline
702	siginit (EV_P)	803	evpipe_init (EV_P)
703	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
704	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
705	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
706		812
707	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
708	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
709	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* watcher should not keep loop alive */
		816
		817	/* in case we received the signal before we had the chance of installing a handler */
		818	ev_feed_event (EV_A_ &pipeev, 0);
		819	}
		820	}
		821
		822	void inline_size
		823	evpipe_write (EV_P_ int sig, int async)
		824	{
		825	if (!(gotasync || gotsig))
		826	{
		827	int old_errno = errno; /* save errno becaue write might clobber it */
		828
		829	if (sig) gotsig = 1;
		830	if (async) gotasync = 1;
		831
		832	write (evpipe [1], &old_errno, 1);
		833
		834	errno = old_errno;
		835	}
		836	}
		837
		838	static void
		839	pipecb (EV_P_ ev_io *iow, int revents)
		840	{
		841	{
		842	int dummy;
		843	read (evpipe [0], &dummy, 1);
		844	}
		845
		846	if (gotsig && ev_is_default_loop (EV_A))
		847	{
		848	int signum;
		849	gotsig = 0;
		850
		851	for (signum = signalmax; signum--; )
		852	if (signals [signum].gotsig)
		853	ev_feed_signal_event (EV_A_ signum + 1);
		854	}
		855
		856	#if EV_ASYNC_ENABLE
		857	if (gotasync)
		858	{
		859	int i;
		860	gotasync = 0;
		861
		862	for (i = asynccnt; i--; )
		863	if (asyncs [i]->sent)
		864	{
		865	asyncs [i]->sent = 0;
		866	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		867	}
		868	}
		869	#endif
710	}	870	}
711		871
712	/*****************************************************************************/	872	/*****************************************************************************/
713		873
		874	static void
		875	sighandler (int signum)
		876	{
		877	#if EV_MULTIPLICITY
		878	struct ev_loop *loop = &default_loop_struct;
		879	#endif
		880
		881	#if _WIN32
		882	signal (signum, sighandler);
		883	#endif
		884
		885	signals [signum - 1].gotsig = 1;
		886	evpipe_write (EV_A_ 1, 0);
		887	}
		888
		889	void noinline
		890	ev_feed_signal_event (EV_P_ int signum)
		891	{
		892	WL w;
		893
		894	#if EV_MULTIPLICITY
		895	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		896	#endif
		897
		898	--signum;
		899
		900	if (signum < 0 || signum >= signalmax)
		901	return;
		902
		903	signals [signum].gotsig = 0;
		904
		905	for (w = signals [signum].head; w; w = w->next)
		906	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		907	}
		908
		909	/*****************************************************************************/
		910
714	static ev_child *childs [PID_HASHSIZE];	911	static WL childs [EV_PID_HASHSIZE];
715		912
716	#ifndef _WIN32	913	#ifndef _WIN32
717		914
718	static ev_signal childev;	915	static ev_signal childev;
		916
		917	#ifndef WIFCONTINUED
		918	# define WIFCONTINUED(status) 0
		919	#endif
719		920
720	void inline_speed	921	void inline_speed
721	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	922	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
722	{	923	{
723	ev_child *w;	924	ev_child *w;
		925	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
724		926
725	for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	927	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		928	{
726	if (w->pid == pid || !w->pid)	929	if ((w->pid == pid || !w->pid)
		930	&& (!traced || (w->flags & 1)))
727	{	931	{
728	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	932	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
729	w->rpid = pid;	933	w->rpid = pid;
730	w->rstatus = status;	934	w->rstatus = status;
731	ev_feed_event (EV_A_ (W)w, EV_CHILD);	935	ev_feed_event (EV_A_ (W)w, EV_CHILD);
732	}	936	}
		937	}
733	}	938	}
734		939
735	#ifndef WCONTINUED	940	#ifndef WCONTINUED
736	# define WCONTINUED 0	941	# define WCONTINUED 0
737	#endif	942	#endif
…		…
751	/* make sure we are called again until all childs have been reaped */	956	/* make sure we are called again until all childs have been reaped */
752	/* we need to do it this way so that the callback gets called before we continue */	957	/* we need to do it this way so that the callback gets called before we continue */
753	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	958	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
754		959
755	child_reap (EV_A_ sw, pid, pid, status);	960	child_reap (EV_A_ sw, pid, pid, status);
		961	if (EV_PID_HASHSIZE > 1)
756	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	962	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
757	}	963	}
758		964
759	#endif	965	#endif
760		966
761	/*****************************************************************************/	967	/*****************************************************************************/
…		…
833	}	1039	}
834		1040
835	unsigned int	1041	unsigned int
836	ev_embeddable_backends (void)	1042	ev_embeddable_backends (void)
837	{	1043	{
838	return EVBACKEND_EPOLL	1044	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
839	| EVBACKEND_KQUEUE	1045
840	| EVBACKEND_PORT;	1046	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1047	/* please fix it and tell me how to detect the fix */
		1048	flags &= ~EVBACKEND_EPOLL;
		1049
		1050	return flags;
841	}	1051	}
842		1052
843	unsigned int	1053	unsigned int
844	ev_backend (EV_P)	1054	ev_backend (EV_P)
845	{	1055	{
846	return backend;	1056	return backend;
847	}	1057	}
848		1058
849	static void	1059	unsigned int
		1060	ev_loop_count (EV_P)
		1061	{
		1062	return loop_count;
		1063	}
		1064
		1065	void
		1066	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1067	{
		1068	io_blocktime = interval;
		1069	}
		1070
		1071	void
		1072	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1073	{
		1074	timeout_blocktime = interval;
		1075	}
		1076
		1077	static void noinline
850	loop_init (EV_P_ unsigned int flags)	1078	loop_init (EV_P_ unsigned int flags)
851	{	1079	{
852	if (!backend)	1080	if (!backend)
853	{	1081	{
854	#if EV_USE_MONOTONIC	1082	#if EV_USE_MONOTONIC
…		…
857	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1085	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
858	have_monotonic = 1;	1086	have_monotonic = 1;
859	}	1087	}
860	#endif	1088	#endif
861		1089
862	ev_rt_now = ev_time ();	1090	ev_rt_now = ev_time ();
863	mn_now = get_clock ();	1091	mn_now = get_clock ();
864	now_floor = mn_now;	1092	now_floor = mn_now;
865	rtmn_diff = ev_rt_now - mn_now;	1093	rtmn_diff = ev_rt_now - mn_now;
		1094
		1095	io_blocktime = 0.;
		1096	timeout_blocktime = 0.;
		1097	backend = 0;
		1098	backend_fd = -1;
		1099	gotasync = 0;
		1100	#if EV_USE_INOTIFY
		1101	fs_fd = -2;
		1102	#endif
		1103
		1104	/* pid check not overridable via env */
		1105	#ifndef _WIN32
		1106	if (flags & EVFLAG_FORKCHECK)
		1107	curpid = getpid ();
		1108	#endif
866		1109
867	if (!(flags & EVFLAG_NOENV)	1110	if (!(flags & EVFLAG_NOENV)
868	&& !enable_secure ()	1111	&& !enable_secure ()
869	&& getenv ("LIBEV_FLAGS"))	1112	&& getenv ("LIBEV_FLAGS"))
870	flags = atoi (getenv ("LIBEV_FLAGS"));	1113	flags = atoi (getenv ("LIBEV_FLAGS"));
871		1114
872	if (!(flags & 0x0000ffffUL))	1115	if (!(flags & 0x0000ffffUL))
873	flags |= ev_recommended_backends ();	1116	flags |= ev_recommended_backends ();
874		1117
875	backend = 0;
876	#if EV_USE_PORT	1118	#if EV_USE_PORT
877	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1119	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
878	#endif	1120	#endif
879	#if EV_USE_KQUEUE	1121	#if EV_USE_KQUEUE
880	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1122	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
887	#endif	1129	#endif
888	#if EV_USE_SELECT	1130	#if EV_USE_SELECT
889	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1131	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
890	#endif	1132	#endif
891		1133
892	ev_init (&sigev, sigcb);	1134	ev_init (&pipeev, pipecb);
893	ev_set_priority (&sigev, EV_MAXPRI);	1135	ev_set_priority (&pipeev, EV_MAXPRI);
894	}	1136	}
895	}	1137	}
896		1138
897	static void	1139	static void noinline
898	loop_destroy (EV_P)	1140	loop_destroy (EV_P)
899	{	1141	{
900	int i;	1142	int i;
		1143
		1144	if (ev_is_active (&pipeev))
		1145	{
		1146	ev_ref (EV_A); /* signal watcher */
		1147	ev_io_stop (EV_A_ &pipeev);
		1148
		1149	close (evpipe [0]); evpipe [0] = 0;
		1150	close (evpipe [1]); evpipe [1] = 0;
		1151	}
		1152
		1153	#if EV_USE_INOTIFY
		1154	if (fs_fd >= 0)
		1155	close (fs_fd);
		1156	#endif
		1157
		1158	if (backend_fd >= 0)
		1159	close (backend_fd);
901		1160
902	#if EV_USE_PORT	1161	#if EV_USE_PORT
903	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1162	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
904	#endif	1163	#endif
905	#if EV_USE_KQUEUE	1164	#if EV_USE_KQUEUE
…		…
914	#if EV_USE_SELECT	1173	#if EV_USE_SELECT
915	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1174	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
916	#endif	1175	#endif
917		1176
918	for (i = NUMPRI; i--; )	1177	for (i = NUMPRI; i--; )
		1178	{
919	array_free (pending, [i]);	1179	array_free (pending, [i]);
		1180	#if EV_IDLE_ENABLE
		1181	array_free (idle, [i]);
		1182	#endif
		1183	}
		1184
		1185	ev_free (anfds); anfdmax = 0;
920		1186
921	/* have to use the microsoft-never-gets-it-right macro */	1187	/* have to use the microsoft-never-gets-it-right macro */
922	array_free (fdchange, EMPTY0);	1188	array_free (fdchange, EMPTY);
923	array_free (timer, EMPTY0);	1189	array_free (timer, EMPTY);
924	#if EV_PERIODIC_ENABLE	1190	#if EV_PERIODIC_ENABLE
925	array_free (periodic, EMPTY0);	1191	array_free (periodic, EMPTY);
926	#endif	1192	#endif
		1193	#if EV_FORK_ENABLE
927	array_free (idle, EMPTY0);	1194	array_free (fork, EMPTY);
		1195	#endif
928	array_free (prepare, EMPTY0);	1196	array_free (prepare, EMPTY);
929	array_free (check, EMPTY0);	1197	array_free (check, EMPTY);
		1198	#if EV_ASYNC_ENABLE
		1199	array_free (async, EMPTY);
		1200	#endif
930		1201
931	backend = 0;	1202	backend = 0;
932	}	1203	}
933		1204
934	static void	1205	void inline_size infy_fork (EV_P);
		1206
		1207	void inline_size
935	loop_fork (EV_P)	1208	loop_fork (EV_P)
936	{	1209	{
937	#if EV_USE_PORT	1210	#if EV_USE_PORT
938	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1211	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
939	#endif	1212	#endif
…		…
941	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1214	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
942	#endif	1215	#endif
943	#if EV_USE_EPOLL	1216	#if EV_USE_EPOLL
944	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1217	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
945	#endif	1218	#endif
		1219	#if EV_USE_INOTIFY
		1220	infy_fork (EV_A);
		1221	#endif
946		1222
947	if (ev_is_active (&sigev))	1223	if (ev_is_active (&pipeev))
948	{	1224	{
949	/* default loop */	1225	/* this "locks" the handlers against writing to the pipe */
		1226	gotsig = gotasync = 1;
950		1227
951	ev_ref (EV_A);	1228	ev_ref (EV_A);
952	ev_io_stop (EV_A_ &sigev);	1229	ev_io_stop (EV_A_ &pipeev);
953	close (sigpipe [0]);	1230	close (evpipe [0]);
954	close (sigpipe [1]);	1231	close (evpipe [1]);
955		1232
956	while (pipe (sigpipe))
957	syserr ("(libev) error creating pipe");
958
959	siginit (EV_A);	1233	evpipe_init (EV_A);
		1234	/* now iterate over everything, in case we missed something */
		1235	pipecb (EV_A_ &pipeev, EV_READ);
960	}	1236	}
961		1237
962	postfork = 0;	1238	postfork = 0;
963	}	1239	}
964		1240
…		…
986	}	1262	}
987		1263
988	void	1264	void
989	ev_loop_fork (EV_P)	1265	ev_loop_fork (EV_P)
990	{	1266	{
991	postfork = 1;	1267	postfork = 1; /* must be in line with ev_default_fork */
992	}	1268	}
993		1269
994	#endif	1270	#endif
995		1271
996	#if EV_MULTIPLICITY	1272	#if EV_MULTIPLICITY
…		…
999	#else	1275	#else
1000	int	1276	int
1001	ev_default_loop (unsigned int flags)	1277	ev_default_loop (unsigned int flags)
1002	#endif	1278	#endif
1003	{	1279	{
1004	if (sigpipe [0] == sigpipe [1])
1005	if (pipe (sigpipe))
1006	return 0;
1007
1008	if (!ev_default_loop_ptr)	1280	if (!ev_default_loop_ptr)
1009	{	1281	{
1010	#if EV_MULTIPLICITY	1282	#if EV_MULTIPLICITY
1011	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1283	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1012	#else	1284	#else
…		…
1015		1287
1016	loop_init (EV_A_ flags);	1288	loop_init (EV_A_ flags);
1017		1289
1018	if (ev_backend (EV_A))	1290	if (ev_backend (EV_A))
1019	{	1291	{
1020	siginit (EV_A);
1021
1022	#ifndef _WIN32	1292	#ifndef _WIN32
1023	ev_signal_init (&childev, childcb, SIGCHLD);	1293	ev_signal_init (&childev, childcb, SIGCHLD);
1024	ev_set_priority (&childev, EV_MAXPRI);	1294	ev_set_priority (&childev, EV_MAXPRI);
1025	ev_signal_start (EV_A_ &childev);	1295	ev_signal_start (EV_A_ &childev);
1026	ev_unref (EV_A); /* child watcher should not keep loop alive */	1296	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1043	#ifndef _WIN32	1313	#ifndef _WIN32
1044	ev_ref (EV_A); /* child watcher */	1314	ev_ref (EV_A); /* child watcher */
1045	ev_signal_stop (EV_A_ &childev);	1315	ev_signal_stop (EV_A_ &childev);
1046	#endif	1316	#endif
1047		1317
1048	ev_ref (EV_A); /* signal watcher */
1049	ev_io_stop (EV_A_ &sigev);
1050
1051	close (sigpipe [0]); sigpipe [0] = 0;
1052	close (sigpipe [1]); sigpipe [1] = 0;
1053
1054	loop_destroy (EV_A);	1318	loop_destroy (EV_A);
1055	}	1319	}
1056		1320
1057	void	1321	void
1058	ev_default_fork (void)	1322	ev_default_fork (void)
…		…
1060	#if EV_MULTIPLICITY	1324	#if EV_MULTIPLICITY
1061	struct ev_loop *loop = ev_default_loop_ptr;	1325	struct ev_loop *loop = ev_default_loop_ptr;
1062	#endif	1326	#endif
1063		1327
1064	if (backend)	1328	if (backend)
1065	postfork = 1;	1329	postfork = 1; /* must be in line with ev_loop_fork */
1066	}	1330	}
1067		1331
1068	/*****************************************************************************/	1332	/*****************************************************************************/
1069		1333
1070	int inline_size	1334	void
1071	any_pending (EV_P)	1335	ev_invoke (EV_P_ void *w, int revents)
1072	{	1336	{
1073	int pri;	1337	EV_CB_INVOKE ((W)w, revents);
1074
1075	for (pri = NUMPRI; pri--; )
1076	if (pendingcnt [pri])
1077	return 1;
1078
1079	return 0;
1080	}	1338	}
1081		1339
1082	void inline_speed	1340	void inline_speed
1083	call_pending (EV_P)	1341	call_pending (EV_P)
1084	{	1342	{
…		…
1089	{	1347	{
1090	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1348	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1091		1349
1092	if (expect_true (p->w))	1350	if (expect_true (p->w))
1093	{	1351	{
1094	assert (("non-pending watcher on pending list", p->w->pending));	1352	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1095		1353
1096	p->w->pending = 0;	1354	p->w->pending = 0;
1097	EV_CB_INVOKE (p->w, p->events);	1355	EV_CB_INVOKE (p->w, p->events);
1098	}	1356	}
1099	}	1357	}
…		…
1102	void inline_size	1360	void inline_size
1103	timers_reify (EV_P)	1361	timers_reify (EV_P)
1104	{	1362	{
1105	while (timercnt && ((WT)timers [0])->at <= mn_now)	1363	while (timercnt && ((WT)timers [0])->at <= mn_now)
1106	{	1364	{
1107	ev_timer *w = timers [0];	1365	ev_timer *w = (ev_timer *)timers [0];
1108		1366
1109	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1367	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1110		1368
1111	/* first reschedule or stop timer */	1369	/* first reschedule or stop timer */
1112	if (w->repeat)	1370	if (w->repeat)
1113	{	1371	{
1114	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1372	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1115		1373
1116	((WT)w)->at += w->repeat;	1374	((WT)w)->at += w->repeat;
1117	if (((WT)w)->at < mn_now)	1375	if (((WT)w)->at < mn_now)
1118	((WT)w)->at = mn_now;	1376	((WT)w)->at = mn_now;
1119		1377
1120	downheap ((WT *)timers, timercnt, 0);	1378	downheap (timers, timercnt, 0);
1121	}	1379	}
1122	else	1380	else
1123	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1381	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1124		1382
1125	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1383	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1130	void inline_size	1388	void inline_size
1131	periodics_reify (EV_P)	1389	periodics_reify (EV_P)
1132	{	1390	{
1133	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1391	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1134	{	1392	{
1135	ev_periodic *w = periodics [0];	1393	ev_periodic *w = (ev_periodic *)periodics [0];
1136		1394
1137	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1395	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1138		1396
1139	/* first reschedule or stop timer */	1397	/* first reschedule or stop timer */
1140	if (w->reschedule_cb)	1398	if (w->reschedule_cb)
1141	{	1399	{
1142	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1400	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1143	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1401	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1144	downheap ((WT *)periodics, periodiccnt, 0);	1402	downheap (periodics, periodiccnt, 0);
1145	}	1403	}
1146	else if (w->interval)	1404	else if (w->interval)
1147	{	1405	{
1148	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1406	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1407	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1149	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1408	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1150	downheap ((WT *)periodics, periodiccnt, 0);	1409	downheap (periodics, periodiccnt, 0);
1151	}	1410	}
1152	else	1411	else
1153	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1412	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1154		1413
1155	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1414	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1162	int i;	1421	int i;
1163		1422
1164	/* adjust periodics after time jump */	1423	/* adjust periodics after time jump */
1165	for (i = 0; i < periodiccnt; ++i)	1424	for (i = 0; i < periodiccnt; ++i)
1166	{	1425	{
1167	ev_periodic *w = periodics [i];	1426	ev_periodic *w = (ev_periodic *)periodics [i];
1168		1427
1169	if (w->reschedule_cb)	1428	if (w->reschedule_cb)
1170	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1429	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1171	else if (w->interval)	1430	else if (w->interval)
1172	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1431	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1173	}	1432	}
1174		1433
1175	/* now rebuild the heap */	1434	/* now rebuild the heap */
1176	for (i = periodiccnt >> 1; i--; )	1435	for (i = periodiccnt >> 1; i--; )
1177	downheap ((WT *)periodics, periodiccnt, i);	1436	downheap (periodics, periodiccnt, i);
1178	}	1437	}
1179	#endif	1438	#endif
1180		1439
		1440	#if EV_IDLE_ENABLE
1181	int inline_size	1441	void inline_size
1182	time_update_monotonic (EV_P)	1442	idle_reify (EV_P)
1183	{	1443	{
		1444	if (expect_false (idleall))
		1445	{
		1446	int pri;
		1447
		1448	for (pri = NUMPRI; pri--; )
		1449	{
		1450	if (pendingcnt [pri])
		1451	break;
		1452
		1453	if (idlecnt [pri])
		1454	{
		1455	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1456	break;
		1457	}
		1458	}
		1459	}
		1460	}
		1461	#endif
		1462
		1463	void inline_speed
		1464	time_update (EV_P_ ev_tstamp max_block)
		1465	{
		1466	int i;
		1467
		1468	#if EV_USE_MONOTONIC
		1469	if (expect_true (have_monotonic))
		1470	{
		1471	ev_tstamp odiff = rtmn_diff;
		1472
1184	mn_now = get_clock ();	1473	mn_now = get_clock ();
1185		1474
		1475	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1476	/* interpolate in the meantime */
1186	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1477	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1187	{	1478	{
1188	ev_rt_now = rtmn_diff + mn_now;	1479	ev_rt_now = rtmn_diff + mn_now;
1189	return 0;	1480	return;
1190	}	1481	}
1191	else	1482
1192	{
1193	now_floor = mn_now;	1483	now_floor = mn_now;
1194	ev_rt_now = ev_time ();	1484	ev_rt_now = ev_time ();
1195	return 1;
1196	}
1197	}
1198		1485
1199	void inline_size	1486	/* loop a few times, before making important decisions.
1200	time_update (EV_P)	1487	* on the choice of "4": one iteration isn't enough,
1201	{	1488	* in case we get preempted during the calls to
1202	int i;	1489	* ev_time and get_clock. a second call is almost guaranteed
1203		1490	* to succeed in that case, though. and looping a few more times
1204	#if EV_USE_MONOTONIC	1491	* doesn't hurt either as we only do this on time-jumps or
1205	if (expect_true (have_monotonic))	1492	* in the unlikely event of having been preempted here.
1206	{	1493	*/
1207	if (time_update_monotonic (EV_A))	1494	for (i = 4; --i; )
1208	{	1495	{
1209	ev_tstamp odiff = rtmn_diff;
1210
1211	/* loop a few times, before making important decisions.
1212	* on the choice of "4": one iteration isn't enough,
1213	* in case we get preempted during the calls to
1214	* ev_time and get_clock. a second call is almost guarenteed
1215	* to succeed in that case, though. and looping a few more times
1216	* doesn't hurt either as we only do this on time-jumps or
1217	* in the unlikely event of getting preempted here.
1218	*/
1219	for (i = 4; --i; )
1220	{
1221	rtmn_diff = ev_rt_now - mn_now;	1496	rtmn_diff = ev_rt_now - mn_now;
1222		1497
1223	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1498	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1224	return; /* all is well */	1499	return; /* all is well */
1225		1500
1226	ev_rt_now = ev_time ();	1501	ev_rt_now = ev_time ();
1227	mn_now = get_clock ();	1502	mn_now = get_clock ();
1228	now_floor = mn_now;	1503	now_floor = mn_now;
1229	}	1504	}
1230		1505
1231	# if EV_PERIODIC_ENABLE	1506	# if EV_PERIODIC_ENABLE
1232	periodics_reschedule (EV_A);	1507	periodics_reschedule (EV_A);
1233	# endif	1508	# endif
1234	/* no timer adjustment, as the monotonic clock doesn't jump */	1509	/* no timer adjustment, as the monotonic clock doesn't jump */
1235	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1510	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1236	}
1237	}	1511	}
1238	else	1512	else
1239	#endif	1513	#endif
1240	{	1514	{
1241	ev_rt_now = ev_time ();	1515	ev_rt_now = ev_time ();
1242		1516
1243	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1517	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1244	{	1518	{
1245	#if EV_PERIODIC_ENABLE	1519	#if EV_PERIODIC_ENABLE
1246	periodics_reschedule (EV_A);	1520	periodics_reschedule (EV_A);
1247	#endif	1521	#endif
1248
1249	/* adjust timers. this is easy, as the offset is the same for all */	1522	/* adjust timers. this is easy, as the offset is the same for all of them */
1250	for (i = 0; i < timercnt; ++i)	1523	for (i = 0; i < timercnt; ++i)
1251	((WT)timers [i])->at += ev_rt_now - mn_now;	1524	((WT)timers [i])->at += ev_rt_now - mn_now;
1252	}	1525	}
1253		1526
1254	mn_now = ev_rt_now;	1527	mn_now = ev_rt_now;
…		…
1274	{	1547	{
1275	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1548	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1276	? EVUNLOOP_ONE	1549	? EVUNLOOP_ONE
1277	: EVUNLOOP_CANCEL;	1550	: EVUNLOOP_CANCEL;
1278		1551
1279	while (activecnt)	1552	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1553
		1554	do
1280	{	1555	{
		1556	#ifndef _WIN32
		1557	if (expect_false (curpid)) /* penalise the forking check even more */
		1558	if (expect_false (getpid () != curpid))
		1559	{
		1560	curpid = getpid ();
		1561	postfork = 1;
		1562	}
		1563	#endif
		1564
		1565	#if EV_FORK_ENABLE
		1566	/* we might have forked, so queue fork handlers */
		1567	if (expect_false (postfork))
		1568	if (forkcnt)
		1569	{
		1570	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1571	call_pending (EV_A);
		1572	}
		1573	#endif
		1574
1281	/* queue check watchers (and execute them) */	1575	/* queue prepare watchers (and execute them) */
1282	if (expect_false (preparecnt))	1576	if (expect_false (preparecnt))
1283	{	1577	{
1284	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1578	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1285	call_pending (EV_A);	1579	call_pending (EV_A);
1286	}	1580	}
1287		1581
		1582	if (expect_false (!activecnt))
		1583	break;
		1584
1288	/* we might have forked, so reify kernel state if necessary */	1585	/* we might have forked, so reify kernel state if necessary */
1289	if (expect_false (postfork))	1586	if (expect_false (postfork))
1290	loop_fork (EV_A);	1587	loop_fork (EV_A);
1291		1588
1292	/* update fd-related kernel structures */	1589	/* update fd-related kernel structures */
1293	fd_reify (EV_A);	1590	fd_reify (EV_A);
1294		1591
1295	/* calculate blocking time */	1592	/* calculate blocking time */
1296	{	1593	{
1297	double block;	1594	ev_tstamp waittime = 0.;
		1595	ev_tstamp sleeptime = 0.;
1298		1596
1299	if (flags & EVLOOP_NONBLOCK || idlecnt)	1597	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1300	block = 0.; /* do not block at all */
1301	else
1302	{	1598	{
1303	/* update time to cancel out callback processing overhead */	1599	/* update time to cancel out callback processing overhead */
1304	#if EV_USE_MONOTONIC
1305	if (expect_true (have_monotonic))
1306	time_update_monotonic (EV_A);	1600	time_update (EV_A_ 1e100);
1307	else
1308	#endif
1309	{
1310	ev_rt_now = ev_time ();
1311	mn_now = ev_rt_now;
1312	}
1313		1601
1314	block = MAX_BLOCKTIME;	1602	waittime = MAX_BLOCKTIME;
1315		1603
1316	if (timercnt)	1604	if (timercnt)
1317	{	1605	{
1318	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1606	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1319	if (block > to) block = to;	1607	if (waittime > to) waittime = to;
1320	}	1608	}
1321		1609
1322	#if EV_PERIODIC_ENABLE	1610	#if EV_PERIODIC_ENABLE
1323	if (periodiccnt)	1611	if (periodiccnt)
1324	{	1612	{
1325	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1613	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1326	if (block > to) block = to;	1614	if (waittime > to) waittime = to;
1327	}	1615	}
1328	#endif	1616	#endif
1329		1617
1330	if (expect_false (block < 0.)) block = 0.;	1618	if (expect_false (waittime < timeout_blocktime))
		1619	waittime = timeout_blocktime;
		1620
		1621	sleeptime = waittime - backend_fudge;
		1622
		1623	if (expect_true (sleeptime > io_blocktime))
		1624	sleeptime = io_blocktime;
		1625
		1626	if (sleeptime)
		1627	{
		1628	ev_sleep (sleeptime);
		1629	waittime -= sleeptime;
		1630	}
1331	}	1631	}
1332		1632
		1633	++loop_count;
1333	backend_poll (EV_A_ block);	1634	backend_poll (EV_A_ waittime);
		1635
		1636	/* update ev_rt_now, do magic */
		1637	time_update (EV_A_ waittime + sleeptime);
1334	}	1638	}
1335
1336	/* update ev_rt_now, do magic */
1337	time_update (EV_A);
1338		1639
1339	/* queue pending timers and reschedule them */	1640	/* queue pending timers and reschedule them */
1340	timers_reify (EV_A); /* relative timers called last */	1641	timers_reify (EV_A); /* relative timers called last */
1341	#if EV_PERIODIC_ENABLE	1642	#if EV_PERIODIC_ENABLE
1342	periodics_reify (EV_A); /* absolute timers called first */	1643	periodics_reify (EV_A); /* absolute timers called first */
1343	#endif	1644	#endif
1344		1645
		1646	#if EV_IDLE_ENABLE
1345	/* queue idle watchers unless other events are pending */	1647	/* queue idle watchers unless other events are pending */
1346	if (idlecnt && !any_pending (EV_A))	1648	idle_reify (EV_A);
1347	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1649	#endif
1348		1650
1349	/* queue check watchers, to be executed first */	1651	/* queue check watchers, to be executed first */
1350	if (expect_false (checkcnt))	1652	if (expect_false (checkcnt))
1351	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1653	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1352		1654
1353	call_pending (EV_A);	1655	call_pending (EV_A);
1354		1656
1355	if (expect_false (loop_done))
1356	break;
1357	}	1657	}
		1658	while (expect_true (activecnt && !loop_done));
1358		1659
1359	if (loop_done == EVUNLOOP_ONE)	1660	if (loop_done == EVUNLOOP_ONE)
1360	loop_done = EVUNLOOP_CANCEL;	1661	loop_done = EVUNLOOP_CANCEL;
1361	}	1662	}
1362		1663
…		…
1389	head = &(*head)->next;	1690	head = &(*head)->next;
1390	}	1691	}
1391	}	1692	}
1392		1693
1393	void inline_speed	1694	void inline_speed
1394	ev_clear_pending (EV_P_ W w)	1695	clear_pending (EV_P_ W w)
1395	{	1696	{
1396	if (w->pending)	1697	if (w->pending)
1397	{	1698	{
1398	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1699	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1399	w->pending = 0;	1700	w->pending = 0;
1400	}	1701	}
1401	}	1702	}
1402		1703
		1704	int
		1705	ev_clear_pending (EV_P_ void *w)
		1706	{
		1707	W w_ = (W)w;
		1708	int pending = w_->pending;
		1709
		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
		1718	return 0;
		1719	}
		1720
		1721	void inline_size
		1722	pri_adjust (EV_P_ W w)
		1723	{
		1724	int pri = w->priority;
		1725	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1726	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1727	w->priority = pri;
		1728	}
		1729
1403	void inline_speed	1730	void inline_speed
1404	ev_start (EV_P_ W w, int active)	1731	ev_start (EV_P_ W w, int active)
1405	{	1732	{
1406	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1733	pri_adjust (EV_A_ w);
1407	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1408
1409	w->active = active;	1734	w->active = active;
1410	ev_ref (EV_A);	1735	ev_ref (EV_A);
1411	}	1736	}
1412		1737
1413	void inline_size	1738	void inline_size
…		…
1417	w->active = 0;	1742	w->active = 0;
1418	}	1743	}
1419		1744
1420	/*****************************************************************************/	1745	/*****************************************************************************/
1421		1746
1422	void	1747	void noinline
1423	ev_io_start (EV_P_ ev_io *w)	1748	ev_io_start (EV_P_ ev_io *w)
1424	{	1749	{
1425	int fd = w->fd;	1750	int fd = w->fd;
1426		1751
1427	if (expect_false (ev_is_active (w)))	1752	if (expect_false (ev_is_active (w)))
…		…
1429		1754
1430	assert (("ev_io_start called with negative fd", fd >= 0));	1755	assert (("ev_io_start called with negative fd", fd >= 0));
1431		1756
1432	ev_start (EV_A_ (W)w, 1);	1757	ev_start (EV_A_ (W)w, 1);
1433	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1758	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1434	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1759	wlist_add (&anfds[fd].head, (WL)w);
1435		1760
1436	fd_change (EV_A_ fd);	1761	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1762	w->events &= ~EV_IOFDSET;
1437	}	1763	}
1438		1764
1439	void	1765	void noinline
1440	ev_io_stop (EV_P_ ev_io *w)	1766	ev_io_stop (EV_P_ ev_io *w)
1441	{	1767	{
1442	ev_clear_pending (EV_A_ (W)w);	1768	clear_pending (EV_A_ (W)w);
1443	if (expect_false (!ev_is_active (w)))	1769	if (expect_false (!ev_is_active (w)))
1444	return;	1770	return;
1445		1771
1446	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));
1447		1773
1448	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1774	wlist_del (&anfds[w->fd].head, (WL)w);
1449	ev_stop (EV_A_ (W)w);	1775	ev_stop (EV_A_ (W)w);
1450		1776
1451	fd_change (EV_A_ w->fd);	1777	fd_change (EV_A_ w->fd, 1);
1452	}	1778	}
1453		1779
1454	void	1780	void noinline
1455	ev_timer_start (EV_P_ ev_timer *w)	1781	ev_timer_start (EV_P_ ev_timer *w)
1456	{	1782	{
1457	if (expect_false (ev_is_active (w)))	1783	if (expect_false (ev_is_active (w)))
1458	return;	1784	return;
1459		1785
1460	((WT)w)->at += mn_now;	1786	((WT)w)->at += mn_now;
1461		1787
1462	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.));
1463		1789
1464	ev_start (EV_A_ (W)w, ++timercnt);	1790	ev_start (EV_A_ (W)w, ++timercnt);
1465	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1791	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1466	timers [timercnt - 1] = w;	1792	timers [timercnt - 1] = (WT)w;
1467	upheap ((WT *)timers, timercnt - 1);	1793	upheap (timers, timercnt - 1);
1468		1794
1469	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1795	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1470	}	1796	}
1471		1797
1472	void	1798	void noinline
1473	ev_timer_stop (EV_P_ ev_timer *w)	1799	ev_timer_stop (EV_P_ ev_timer *w)
1474	{	1800	{
1475	ev_clear_pending (EV_A_ (W)w);	1801	clear_pending (EV_A_ (W)w);
1476	if (expect_false (!ev_is_active (w)))	1802	if (expect_false (!ev_is_active (w)))
1477	return;	1803	return;
1478		1804
1479	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1805	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1480		1806
		1807	{
		1808	int active = ((W)w)->active;
		1809
1481	if (expect_true (((W)w)->active < timercnt--))	1810	if (expect_true (--active < --timercnt))
1482	{	1811	{
1483	timers [((W)w)->active - 1] = timers [timercnt];	1812	timers [active] = timers [timercnt];
1484	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1813	adjustheap (timers, timercnt, active);
1485	}	1814	}
		1815	}
1486		1816
1487	((WT)w)->at -= mn_now;	1817	((WT)w)->at -= mn_now;
1488		1818
1489	ev_stop (EV_A_ (W)w);	1819	ev_stop (EV_A_ (W)w);
1490	}	1820	}
1491		1821
1492	void	1822	void noinline
1493	ev_timer_again (EV_P_ ev_timer *w)	1823	ev_timer_again (EV_P_ ev_timer *w)
1494	{	1824	{
1495	if (ev_is_active (w))	1825	if (ev_is_active (w))
1496	{	1826	{
1497	if (w->repeat)	1827	if (w->repeat)
1498	{	1828	{
1499	((WT)w)->at = mn_now + w->repeat;	1829	((WT)w)->at = mn_now + w->repeat;
1500	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1830	adjustheap (timers, timercnt, ((W)w)->active - 1);
1501	}	1831	}
1502	else	1832	else
1503	ev_timer_stop (EV_A_ w);	1833	ev_timer_stop (EV_A_ w);
1504	}	1834	}
1505	else if (w->repeat)	1835	else if (w->repeat)
…		…
1508	ev_timer_start (EV_A_ w);	1838	ev_timer_start (EV_A_ w);
1509	}	1839	}
1510	}	1840	}
1511		1841
1512	#if EV_PERIODIC_ENABLE	1842	#if EV_PERIODIC_ENABLE
1513	void	1843	void noinline
1514	ev_periodic_start (EV_P_ ev_periodic *w)	1844	ev_periodic_start (EV_P_ ev_periodic *w)
1515	{	1845	{
1516	if (expect_false (ev_is_active (w)))	1846	if (expect_false (ev_is_active (w)))
1517	return;	1847	return;
1518		1848
…		…
1520	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1850	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1521	else if (w->interval)	1851	else if (w->interval)
1522	{	1852	{
1523	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.));
1524	/* 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 */
1525	((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;
1526	}	1856	}
		1857	else
		1858	((WT)w)->at = w->offset;
1527		1859
1528	ev_start (EV_A_ (W)w, ++periodiccnt);	1860	ev_start (EV_A_ (W)w, ++periodiccnt);
1529	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1861	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1530	periodics [periodiccnt - 1] = w;	1862	periodics [periodiccnt - 1] = (WT)w;
1531	upheap ((WT *)periodics, periodiccnt - 1);	1863	upheap (periodics, periodiccnt - 1);
1532		1864
1533	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1865	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1534	}	1866	}
1535		1867
1536	void	1868	void noinline
1537	ev_periodic_stop (EV_P_ ev_periodic *w)	1869	ev_periodic_stop (EV_P_ ev_periodic *w)
1538	{	1870	{
1539	ev_clear_pending (EV_A_ (W)w);	1871	clear_pending (EV_A_ (W)w);
1540	if (expect_false (!ev_is_active (w)))	1872	if (expect_false (!ev_is_active (w)))
1541	return;	1873	return;
1542		1874
1543	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1875	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1544		1876
		1877	{
		1878	int active = ((W)w)->active;
		1879
1545	if (expect_true (((W)w)->active < periodiccnt--))	1880	if (expect_true (--active < --periodiccnt))
1546	{	1881	{
1547	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1882	periodics [active] = periodics [periodiccnt];
1548	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1883	adjustheap (periodics, periodiccnt, active);
1549	}	1884	}
		1885	}
1550		1886
1551	ev_stop (EV_A_ (W)w);	1887	ev_stop (EV_A_ (W)w);
1552	}	1888	}
1553		1889
1554	void	1890	void noinline
1555	ev_periodic_again (EV_P_ ev_periodic *w)	1891	ev_periodic_again (EV_P_ ev_periodic *w)
1556	{	1892	{
1557	/* TODO: use adjustheap and recalculation */	1893	/* TODO: use adjustheap and recalculation */
1558	ev_periodic_stop (EV_A_ w);	1894	ev_periodic_stop (EV_A_ w);
1559	ev_periodic_start (EV_A_ w);	1895	ev_periodic_start (EV_A_ w);
…		…
1562		1898
1563	#ifndef SA_RESTART	1899	#ifndef SA_RESTART
1564	# define SA_RESTART 0	1900	# define SA_RESTART 0
1565	#endif	1901	#endif
1566		1902
1567	void	1903	void noinline
1568	ev_signal_start (EV_P_ ev_signal *w)	1904	ev_signal_start (EV_P_ ev_signal *w)
1569	{	1905	{
1570	#if EV_MULTIPLICITY	1906	#if EV_MULTIPLICITY
1571	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));
1572	#endif	1908	#endif
1573	if (expect_false (ev_is_active (w)))	1909	if (expect_false (ev_is_active (w)))
1574	return;	1910	return;
1575		1911
1576	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));
1577		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
1578	ev_start (EV_A_ (W)w, 1);	1930	ev_start (EV_A_ (W)w, 1);
1579	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1580	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1931	wlist_add (&signals [w->signum - 1].head, (WL)w);
1581		1932
1582	if (!((WL)w)->next)	1933	if (!((WL)w)->next)
1583	{	1934	{
1584	#if _WIN32	1935	#if _WIN32
1585	signal (w->signum, sighandler);	1936	signal (w->signum, sighandler);
…		…
1591	sigaction (w->signum, &sa, 0);	1942	sigaction (w->signum, &sa, 0);
1592	#endif	1943	#endif
1593	}	1944	}
1594	}	1945	}
1595		1946
1596	void	1947	void noinline
1597	ev_signal_stop (EV_P_ ev_signal *w)	1948	ev_signal_stop (EV_P_ ev_signal *w)
1598	{	1949	{
1599	ev_clear_pending (EV_A_ (W)w);	1950	clear_pending (EV_A_ (W)w);
1600	if (expect_false (!ev_is_active (w)))	1951	if (expect_false (!ev_is_active (w)))
1601	return;	1952	return;
1602		1953
1603	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1954	wlist_del (&signals [w->signum - 1].head, (WL)w);
1604	ev_stop (EV_A_ (W)w);	1955	ev_stop (EV_A_ (W)w);
1605		1956
1606	if (!signals [w->signum - 1].head)	1957	if (!signals [w->signum - 1].head)
1607	signal (w->signum, SIG_DFL);	1958	signal (w->signum, SIG_DFL);
1608	}	1959	}
…		…
1615	#endif	1966	#endif
1616	if (expect_false (ev_is_active (w)))	1967	if (expect_false (ev_is_active (w)))
1617	return;	1968	return;
1618		1969
1619	ev_start (EV_A_ (W)w, 1);	1970	ev_start (EV_A_ (W)w, 1);
1620	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1971	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1621	}	1972	}
1622		1973
1623	void	1974	void
1624	ev_child_stop (EV_P_ ev_child *w)	1975	ev_child_stop (EV_P_ ev_child *w)
1625	{	1976	{
1626	ev_clear_pending (EV_A_ (W)w);	1977	clear_pending (EV_A_ (W)w);
1627	if (expect_false (!ev_is_active (w)))	1978	if (expect_false (!ev_is_active (w)))
1628	return;	1979	return;
1629		1980
1630	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1981	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1631	ev_stop (EV_A_ (W)w);	1982	ev_stop (EV_A_ (W)w);
1632	}	1983	}
1633		1984
1634	#if EV_STAT_ENABLE	1985	#if EV_STAT_ENABLE
1635		1986
…		…
1639	# endif	1990	# endif
1640		1991
1641	#define DEF_STAT_INTERVAL 5.0074891	1992	#define DEF_STAT_INTERVAL 5.0074891
1642	#define MIN_STAT_INTERVAL 0.1074891	1993	#define MIN_STAT_INTERVAL 0.1074891
1643		1994
		1995	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1996
		1997	#if EV_USE_INOTIFY
		1998	# define EV_INOTIFY_BUFSIZE 8192
		1999
		2000	static void noinline
		2001	infy_add (EV_P_ ev_stat *w)
		2002	{
		2003	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
		2004
		2005	if (w->wd < 0)
		2006	{
		2007	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		2008
		2009	/* monitor some parent directory for speedup hints */
		2010	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		2011	{
		2012	char path [4096];
		2013	strcpy (path, w->path);
		2014
		2015	do
		2016	{
		2017	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		2018	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		2019
		2020	char *pend = strrchr (path, '/');
		2021
		2022	if (!pend)
		2023	break; /* whoops, no '/', complain to your admin */
		2024
		2025	*pend = 0;
		2026	w->wd = inotify_add_watch (fs_fd, path, mask);
		2027	}
		2028	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		2029	}
		2030	}
		2031	else
		2032	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		2033
		2034	if (w->wd >= 0)
		2035	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2036	}
		2037
		2038	static void noinline
		2039	infy_del (EV_P_ ev_stat *w)
		2040	{
		2041	int slot;
		2042	int wd = w->wd;
		2043
		2044	if (wd < 0)
		2045	return;
		2046
		2047	w->wd = -2;
		2048	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		2049	wlist_del (&fs_hash [slot].head, (WL)w);
		2050
		2051	/* remove this watcher, if others are watching it, they will rearm */
		2052	inotify_rm_watch (fs_fd, wd);
		2053	}
		2054
		2055	static void noinline
		2056	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2057	{
		2058	if (slot < 0)
		2059	/* overflow, need to check for all hahs slots */
		2060	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2061	infy_wd (EV_A_ slot, wd, ev);
		2062	else
		2063	{
		2064	WL w_;
		2065
		2066	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2067	{
		2068	ev_stat *w = (ev_stat *)w_;
		2069	w_ = w_->next; /* lets us remove this watcher and all before it */
		2070
		2071	if (w->wd == wd || wd == -1)
		2072	{
		2073	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2074	{
		2075	w->wd = -1;
		2076	infy_add (EV_A_ w); /* re-add, no matter what */
		2077	}
		2078
		2079	stat_timer_cb (EV_A_ &w->timer, 0);
		2080	}
		2081	}
		2082	}
		2083	}
		2084
		2085	static void
		2086	infy_cb (EV_P_ ev_io *w, int revents)
		2087	{
		2088	char buf [EV_INOTIFY_BUFSIZE];
		2089	struct inotify_event *ev = (struct inotify_event *)buf;
		2090	int ofs;
		2091	int len = read (fs_fd, buf, sizeof (buf));
		2092
		2093	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2094	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2095	}
		2096
		2097	void inline_size
		2098	infy_init (EV_P)
		2099	{
		2100	if (fs_fd != -2)
		2101	return;
		2102
		2103	fs_fd = inotify_init ();
		2104
		2105	if (fs_fd >= 0)
		2106	{
		2107	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2108	ev_set_priority (&fs_w, EV_MAXPRI);
		2109	ev_io_start (EV_A_ &fs_w);
		2110	}
		2111	}
		2112
		2113	void inline_size
		2114	infy_fork (EV_P)
		2115	{
		2116	int slot;
		2117
		2118	if (fs_fd < 0)
		2119	return;
		2120
		2121	close (fs_fd);
		2122	fs_fd = inotify_init ();
		2123
		2124	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2125	{
		2126	WL w_ = fs_hash [slot].head;
		2127	fs_hash [slot].head = 0;
		2128
		2129	while (w_)
		2130	{
		2131	ev_stat *w = (ev_stat *)w_;
		2132	w_ = w_->next; /* lets us add this watcher */
		2133
		2134	w->wd = -1;
		2135
		2136	if (fs_fd >= 0)
		2137	infy_add (EV_A_ w); /* re-add, no matter what */
		2138	else
		2139	ev_timer_start (EV_A_ &w->timer);
		2140	}
		2141
		2142	}
		2143	}
		2144
		2145	#endif
		2146
1644	void	2147	void
1645	ev_stat_stat (EV_P_ ev_stat *w)	2148	ev_stat_stat (EV_P_ ev_stat *w)
1646	{	2149	{
1647	if (lstat (w->path, &w->attr) < 0)	2150	if (lstat (w->path, &w->attr) < 0)
1648	w->attr.st_nlink = 0;	2151	w->attr.st_nlink = 0;
1649	else if (!w->attr.st_nlink)	2152	else if (!w->attr.st_nlink)
1650	w->attr.st_nlink = 1;	2153	w->attr.st_nlink = 1;
1651	}	2154	}
1652		2155
1653	static void	2156	static void noinline
1654	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2157	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1655	{	2158	{
1656	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	2159	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1657		2160
1658	/* we copy this here each the time so that */	2161	/* we copy this here each the time so that */
1659	/* prev has the old value when the callback gets invoked */	2162	/* prev has the old value when the callback gets invoked */
1660	w->prev = w->attr;	2163	w->prev = w->attr;
1661	ev_stat_stat (EV_A_ w);	2164	ev_stat_stat (EV_A_ w);
1662		2165
1663	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2166	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2167	if (
		2168	w->prev.st_dev != w->attr.st_dev
		2169	|| w->prev.st_ino != w->attr.st_ino
		2170	|| w->prev.st_mode != w->attr.st_mode
		2171	|| w->prev.st_nlink != w->attr.st_nlink
		2172	|| w->prev.st_uid != w->attr.st_uid
		2173	|| w->prev.st_gid != w->attr.st_gid
		2174	|| w->prev.st_rdev != w->attr.st_rdev
		2175	|| w->prev.st_size != w->attr.st_size
		2176	|| w->prev.st_atime != w->attr.st_atime
		2177	|| w->prev.st_mtime != w->attr.st_mtime
		2178	|| w->prev.st_ctime != w->attr.st_ctime
		2179	) {
		2180	#if EV_USE_INOTIFY
		2181	infy_del (EV_A_ w);
		2182	infy_add (EV_A_ w);
		2183	ev_stat_stat (EV_A_ w); /* avoid race... */
		2184	#endif
		2185
1664	ev_feed_event (EV_A_ w, EV_STAT);	2186	ev_feed_event (EV_A_ w, EV_STAT);
		2187	}
1665	}	2188	}
1666		2189
1667	void	2190	void
1668	ev_stat_start (EV_P_ ev_stat *w)	2191	ev_stat_start (EV_P_ ev_stat *w)
1669	{	2192	{
…		…
1679	if (w->interval < MIN_STAT_INTERVAL)	2202	if (w->interval < MIN_STAT_INTERVAL)
1680	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;	2203	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1681		2204
1682	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2205	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1683	ev_set_priority (&w->timer, ev_priority (w));	2206	ev_set_priority (&w->timer, ev_priority (w));
		2207
		2208	#if EV_USE_INOTIFY
		2209	infy_init (EV_A);
		2210
		2211	if (fs_fd >= 0)
		2212	infy_add (EV_A_ w);
		2213	else
		2214	#endif
1684	ev_timer_start (EV_A_ &w->timer);	2215	ev_timer_start (EV_A_ &w->timer);
1685		2216
1686	ev_start (EV_A_ (W)w, 1);	2217	ev_start (EV_A_ (W)w, 1);
1687	}	2218	}
1688		2219
1689	void	2220	void
1690	ev_stat_stop (EV_P_ ev_stat *w)	2221	ev_stat_stop (EV_P_ ev_stat *w)
1691	{	2222	{
1692	ev_clear_pending (EV_A_ (W)w);	2223	clear_pending (EV_A_ (W)w);
1693	if (expect_false (!ev_is_active (w)))	2224	if (expect_false (!ev_is_active (w)))
1694	return;	2225	return;
1695		2226
		2227	#if EV_USE_INOTIFY
		2228	infy_del (EV_A_ w);
		2229	#endif
1696	ev_timer_stop (EV_A_ &w->timer);	2230	ev_timer_stop (EV_A_ &w->timer);
1697		2231
1698	ev_stop (EV_A_ (W)w);	2232	ev_stop (EV_A_ (W)w);
1699	}	2233	}
1700	#endif	2234	#endif
1701		2235
		2236	#if EV_IDLE_ENABLE
1702	void	2237	void
1703	ev_idle_start (EV_P_ ev_idle *w)	2238	ev_idle_start (EV_P_ ev_idle *w)
1704	{	2239	{
1705	if (expect_false (ev_is_active (w)))	2240	if (expect_false (ev_is_active (w)))
1706	return;	2241	return;
1707		2242
		2243	pri_adjust (EV_A_ (W)w);
		2244
		2245	{
		2246	int active = ++idlecnt [ABSPRI (w)];
		2247
		2248	++idleall;
1708	ev_start (EV_A_ (W)w, ++idlecnt);	2249	ev_start (EV_A_ (W)w, active);
		2250
1709	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2251	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1710	idles [idlecnt - 1] = w;	2252	idles [ABSPRI (w)][active - 1] = w;
		2253	}
1711	}	2254	}
1712		2255
1713	void	2256	void
1714	ev_idle_stop (EV_P_ ev_idle *w)	2257	ev_idle_stop (EV_P_ ev_idle *w)
1715	{	2258	{
1716	ev_clear_pending (EV_A_ (W)w);	2259	clear_pending (EV_A_ (W)w);
1717	if (expect_false (!ev_is_active (w)))	2260	if (expect_false (!ev_is_active (w)))
1718	return;	2261	return;
1719		2262
1720	{	2263	{
1721	int active = ((W)w)->active;	2264	int active = ((W)w)->active;
1722	idles [active - 1] = idles [--idlecnt];	2265
		2266	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1723	((W)idles [active - 1])->active = active;	2267	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2268
		2269	ev_stop (EV_A_ (W)w);
		2270	--idleall;
1724	}	2271	}
1725
1726	ev_stop (EV_A_ (W)w);
1727	}	2272	}
		2273	#endif
1728		2274
1729	void	2275	void
1730	ev_prepare_start (EV_P_ ev_prepare *w)	2276	ev_prepare_start (EV_P_ ev_prepare *w)
1731	{	2277	{
1732	if (expect_false (ev_is_active (w)))	2278	if (expect_false (ev_is_active (w)))
…		…
1738	}	2284	}
1739		2285
1740	void	2286	void
1741	ev_prepare_stop (EV_P_ ev_prepare *w)	2287	ev_prepare_stop (EV_P_ ev_prepare *w)
1742	{	2288	{
1743	ev_clear_pending (EV_A_ (W)w);	2289	clear_pending (EV_A_ (W)w);
1744	if (expect_false (!ev_is_active (w)))	2290	if (expect_false (!ev_is_active (w)))
1745	return;	2291	return;
1746		2292
1747	{	2293	{
1748	int active = ((W)w)->active;	2294	int active = ((W)w)->active;
…		…
1765	}	2311	}
1766		2312
1767	void	2313	void
1768	ev_check_stop (EV_P_ ev_check *w)	2314	ev_check_stop (EV_P_ ev_check *w)
1769	{	2315	{
1770	ev_clear_pending (EV_A_ (W)w);	2316	clear_pending (EV_A_ (W)w);
1771	if (expect_false (!ev_is_active (w)))	2317	if (expect_false (!ev_is_active (w)))
1772	return;	2318	return;
1773		2319
1774	{	2320	{
1775	int active = ((W)w)->active;	2321	int active = ((W)w)->active;
…		…
1782		2328
1783	#if EV_EMBED_ENABLE	2329	#if EV_EMBED_ENABLE
1784	void noinline	2330	void noinline
1785	ev_embed_sweep (EV_P_ ev_embed *w)	2331	ev_embed_sweep (EV_P_ ev_embed *w)
1786	{	2332	{
1787	ev_loop (w->loop, EVLOOP_NONBLOCK);	2333	ev_loop (w->other, EVLOOP_NONBLOCK);
1788	}	2334	}
1789		2335
1790	static void	2336	static void
1791	embed_cb (EV_P_ ev_io *io, int revents)	2337	embed_io_cb (EV_P_ ev_io *io, int revents)
1792	{	2338	{
1793	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2339	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1794		2340
1795	if (ev_cb (w))	2341	if (ev_cb (w))
1796	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2342	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1797	else	2343	else
1798	ev_embed_sweep (loop, w);	2344	ev_loop (w->other, EVLOOP_NONBLOCK);
1799	}	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
1800		2370
1801	void	2371	void
1802	ev_embed_start (EV_P_ ev_embed *w)	2372	ev_embed_start (EV_P_ ev_embed *w)
1803	{	2373	{
1804	if (expect_false (ev_is_active (w)))	2374	if (expect_false (ev_is_active (w)))
1805	return;	2375	return;
1806		2376
1807	{	2377	{
1808	struct ev_loop *loop = w->loop;	2378	struct ev_loop *loop = w->other;
1809	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 ()));
1810	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2380	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1811	}	2381	}
1812		2382
1813	ev_set_priority (&w->io, ev_priority (w));	2383	ev_set_priority (&w->io, ev_priority (w));
1814	ev_io_start (EV_A_ &w->io);	2384	ev_io_start (EV_A_ &w->io);
1815		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
1816	ev_start (EV_A_ (W)w, 1);	2392	ev_start (EV_A_ (W)w, 1);
1817	}	2393	}
1818		2394
1819	void	2395	void
1820	ev_embed_stop (EV_P_ ev_embed *w)	2396	ev_embed_stop (EV_P_ ev_embed *w)
1821	{	2397	{
1822	ev_clear_pending (EV_A_ (W)w);	2398	clear_pending (EV_A_ (W)w);
1823	if (expect_false (!ev_is_active (w)))	2399	if (expect_false (!ev_is_active (w)))
1824	return;	2400	return;
1825		2401
1826	ev_io_stop (EV_A_ &w->io);	2402	ev_io_stop (EV_A_ &w->io);
		2403	ev_prepare_stop (EV_A_ &w->prepare);
1827		2404
1828	ev_stop (EV_A_ (W)w);	2405	ev_stop (EV_A_ (W)w);
		2406	}
		2407	#endif
		2408
		2409	#if EV_FORK_ENABLE
		2410	void
		2411	ev_fork_start (EV_P_ ev_fork *w)
		2412	{
		2413	if (expect_false (ev_is_active (w)))
		2414	return;
		2415
		2416	ev_start (EV_A_ (W)w, ++forkcnt);
		2417	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2418	forks [forkcnt - 1] = w;
		2419	}
		2420
		2421	void
		2422	ev_fork_stop (EV_P_ ev_fork *w)
		2423	{
		2424	clear_pending (EV_A_ (W)w);
		2425	if (expect_false (!ev_is_active (w)))
		2426	return;
		2427
		2428	{
		2429	int active = ((W)w)->active;
		2430	forks [active - 1] = forks [--forkcnt];
		2431	((W)forks [active - 1])->active = active;
		2432	}
		2433
		2434	ev_stop (EV_A_ (W)w);
		2435	}
		2436	#endif
		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_ 0, 1);
1829	}	2473	}
1830	#endif	2474	#endif
1831		2475
1832	/*****************************************************************************/	2476	/*****************************************************************************/
1833		2477
…		…
1891	ev_timer_set (&once->to, timeout, 0.);	2535	ev_timer_set (&once->to, timeout, 0.);
1892	ev_timer_start (EV_A_ &once->to);	2536	ev_timer_start (EV_A_ &once->to);
1893	}	2537	}
1894	}	2538	}
1895		2539
		2540	#if EV_MULTIPLICITY
		2541	#include "ev_wrap.h"
		2542	#endif
		2543
1896	#ifdef __cplusplus	2544	#ifdef __cplusplus
1897	}	2545	}
1898	#endif	2546	#endif
1899		2547

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