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Comparing libev/ev.c (file contents):
Revision 1.149 by root, Tue Nov 27 19:23:31 2007 UTC vs.
Revision 1.208 by root, Fri Feb 1 13:22:48 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
161	#ifndef EV_PID_HASHSIZE	199	#ifndef EV_PID_HASHSIZE
162	# if EV_MINIMAL	200	# if EV_MINIMAL
163	# define EV_PID_HASHSIZE 1	201	# define EV_PID_HASHSIZE 1
164	# else	202	# else
165	# define EV_PID_HASHSIZE 16	203	# define EV_PID_HASHSIZE 16
166	# endif	204	# endif
167	#endif	205	#endif
168		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
169	/**/	215	/**/
170		216
171	#ifndef CLOCK_MONOTONIC	217	#ifndef CLOCK_MONOTONIC
172	# undef EV_USE_MONOTONIC	218	# undef EV_USE_MONOTONIC
173	# define EV_USE_MONOTONIC 0	219	# define EV_USE_MONOTONIC 0
…		…
176	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
177	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
178	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
179	#endif	225	#endif
180		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
181	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
182	# include <winsock.h>	243	# include <winsock.h>
183	#endif	244	#endif
184		245
185	/**/	246	/**/
186		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
187	#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) */
188	#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) */
189	/*#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 */
190		261
191	#ifdef EV_H
192	# include EV_H
193	#else
194	# include "ev.h"
195	#endif
196
197	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
198	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
199	# define inline_size static inline /* inline for codesize */
200	# if EV_MINIMAL
201	# define noinline __attribute__ ((noinline))	264	# define noinline __attribute__ ((noinline))
202	# define inline_speed static noinline
203	# else
204	# define noinline
205	# define inline_speed static inline
206	# endif
207	#else	265	#else
208	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
209	# define inline_speed static
210	# define inline_size static
211	# define noinline	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
212	#endif	271	#endif
213		272
214	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
215	#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
216		282
217	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
218	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
219		285
220	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
221	#define EMPTY2(a,b) /* used to suppress some warnings */	287	#define EMPTY2(a,b) /* used to suppress some warnings */
222		288
223	typedef ev_watcher *W;	289	typedef ev_watcher *W;
224	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
225	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
226		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 */
227	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
228		298
229	#ifdef _WIN32	299	#ifdef _WIN32
230	# include "ev_win32.c"	300	# include "ev_win32.c"
231	#endif	301	#endif
232		302
…		…
261	ev_set_allocator (void *(*cb)(void *ptr, long size))	331	ev_set_allocator (void *(*cb)(void *ptr, long size))
262	{	332	{
263	alloc = cb;	333	alloc = cb;
264	}	334	}
265		335
266	static void *	336	inline_speed void *
267	ev_realloc (void *ptr, long size)	337	ev_realloc (void *ptr, long size)
268	{	338	{
269	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	339	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
270		340
271	if (!ptr && size)	341	if (!ptr && size)
…		…
295	typedef struct	365	typedef struct
296	{	366	{
297	W w;	367	W w;
298	int events;	368	int events;
299	} ANPENDING;	369	} ANPENDING;
		370
		371	#if EV_USE_INOTIFY
		372	typedef struct
		373	{
		374	WL head;
		375	} ANFS;
		376	#endif
300		377
301	#if EV_MULTIPLICITY	378	#if EV_MULTIPLICITY
302		379
303	struct ev_loop	380	struct ev_loop
304	{	381	{
…		…
361	{	438	{
362	return ev_rt_now;	439	return ev_rt_now;
363	}	440	}
364	#endif	441	#endif
365		442
366	#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	}
367		497
368	#define array_needsize(type,base,cur,cnt,init) \	498	#define array_needsize(type,base,cur,cnt,init) \
369	if (expect_false ((cnt) > cur)) \	499	if (expect_false ((cnt) > (cur))) \
370	{ \	500	{ \
371	int newcnt = cur; \	501	int ocur_ = (cur); \
372	do \	502	(base) = (type *)array_realloc \
373	{ \	503	(sizeof (type), (base), &(cur), (cnt)); \
374	newcnt = array_roundsize (type, newcnt << 1); \	504	init ((base) + (ocur_), (cur) - ocur_); \
375	} \
376	while ((cnt) > newcnt); \
377	\
378	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
379	init (base + cur, newcnt - cur); \
380	cur = newcnt; \
381	}	505	}
382		506
		507	#if 0
383	#define array_slim(type,stem) \	508	#define array_slim(type,stem) \
384	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	509	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
385	{ \	510	{ \
386	stem ## max = array_roundsize (stem ## cnt >> 1); \	511	stem ## max = array_roundsize (stem ## cnt >> 1); \
387	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	512	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
388	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	513	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
389	}	514	}
		515	#endif
390		516
391	#define array_free(stem, idx) \	517	#define array_free(stem, idx) \
392	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;
393		519
394	/*****************************************************************************/	520	/*****************************************************************************/
395		521
396	void noinline	522	void noinline
397	ev_feed_event (EV_P_ void *w, int revents)	523	ev_feed_event (EV_P_ void *w, int revents)
398	{	524	{
399	W w_ = (W)w;	525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
400		527
401	if (expect_false (w_->pending))	528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events |= revents;
		530	else
402	{	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_;
403	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	535	pendings [pri][w_->pending - 1].events = revents;
404	return;
405	}	536	}
406
407	w_->pending = ++pendingcnt [ABSPRI (w_)];
408	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
409	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
410	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
411	}	537	}
412		538
413	void inline_size	539	void inline_speed
414	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
415	{	541	{
416	int i;	542	int i;
417		543
418	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
450	}	576	}
451		577
452	void	578	void
453	ev_feed_fd_event (EV_P_ int fd, int revents)	579	ev_feed_fd_event (EV_P_ int fd, int revents)
454	{	580	{
		581	if (fd >= 0 && fd < anfdmax)
455	fd_event (EV_A_ fd, revents);	582	fd_event (EV_A_ fd, revents);
456	}	583	}
457		584
458	void inline_size	585	void inline_size
459	fd_reify (EV_P)	586	fd_reify (EV_P)
460	{	587	{
…		…
464	{	591	{
465	int fd = fdchanges [i];	592	int fd = fdchanges [i];
466	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
467	ev_io *w;	594	ev_io *w;
468		595
469	int events = 0;	596	unsigned char events = 0;
470		597
471	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)
472	events |= w->events;	599	events |= (unsigned char)w->events;
473		600
474	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
475	if (events)	602	if (events)
476	{	603	{
477	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
478	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
479	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));
480	}	611	}
481	#endif	612	#endif
482		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
483	anfd->reify = 0;	618	anfd->reify = 0;
484
485	backend_modify (EV_A_ fd, anfd->events, events);
486	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	}
487	}	624	}
488		625
489	fdchangecnt = 0;	626	fdchangecnt = 0;
490	}	627	}
491		628
492	void inline_size	629	void inline_size
493	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
494	{	631	{
495	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
496	return;
497
498	anfds [fd].reify = 1;	633	anfds [fd].reify |= flags;
499		634
		635	if (expect_true (!reify))
		636	{
500	++fdchangecnt;	637	++fdchangecnt;
501	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
502	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
503	}	641	}
504		642
505	void inline_speed	643	void inline_speed
506	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
507	{	645	{
…		…
554	static void noinline	692	static void noinline
555	fd_rearm_all (EV_P)	693	fd_rearm_all (EV_P)
556	{	694	{
557	int fd;	695	int fd;
558		696
559	/* this should be highly optimised to not do anything but set a flag */
560	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
561	if (anfds [fd].events)	698	if (anfds [fd].events)
562	{	699	{
563	anfds [fd].events = 0;	700	anfds [fd].events = 0;
564	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET | 1);
565	}	702	}
566	}	703	}
567		704
568	/*****************************************************************************/	705	/*****************************************************************************/
569		706
570	void inline_speed	707	void inline_speed
571	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
572	{	709	{
573	WT w = heap [k];	710	WT w = heap [k];
574		711
575	while (k && heap [k >> 1]->at > w->at)	712	while (k)
576	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
577	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
578	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
579	k >>= 1;	721	k = p;
580	}	722	}
581		723
582	heap [k] = w;	724	heap [k] = w;
583	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
584
585	}	726	}
586		727
587	void inline_speed	728	void inline_speed
588	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
589	{	730	{
590	WT w = heap [k];	731	WT w = heap [k];
591		732
592	while (k < (N >> 1))	733	for (;;)
593	{	734	{
594	int j = k << 1;	735	int c = (k << 1) + 1;
595		736
596	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
597	++j;
598
599	if (w->at <= heap [j]->at)
600	break;	738	break;
601		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
602	heap [k] = heap [j];	746	heap [k] = heap [c];
603	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
604	k = j;	749	k = c;
605	}	750	}
606		751
607	heap [k] = w;	752	heap [k] = w;
608	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
609	}	754	}
…		…
618	/*****************************************************************************/	763	/*****************************************************************************/
619		764
620	typedef struct	765	typedef struct
621	{	766	{
622	WL head;	767	WL head;
623	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
624	} ANSIG;	769	} ANSIG;
625		770
626	static ANSIG *signals;	771	static ANSIG *signals;
627	static int signalmax;	772	static int signalmax;
628		773
629	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
630	static sig_atomic_t volatile gotsig;
631	static ev_io sigev;
632		775
633	void inline_size	776	void inline_size
634	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
635	{	778	{
636	while (count--)	779	while (count--)
…		…
640		783
641	++base;	784	++base;
642	}	785	}
643	}	786	}
644		787
645	static void	788	/*****************************************************************************/
646	sighandler (int signum)
647	{
648	#if _WIN32
649	signal (signum, sighandler);
650	#endif
651		789
652	signals [signum - 1].gotsig = 1;
653
654	if (!gotsig)
655	{
656	int old_errno = errno;
657	gotsig = 1;
658	write (sigpipe [1], &signum, 1);
659	errno = old_errno;
660	}
661	}
662
663	void noinline
664	ev_feed_signal_event (EV_P_ int signum)
665	{
666	WL w;
667
668	#if EV_MULTIPLICITY
669	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
670	#endif
671
672	--signum;
673
674	if (signum < 0 || signum >= signalmax)
675	return;
676
677	signals [signum].gotsig = 0;
678
679	for (w = signals [signum].head; w; w = w->next)
680	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
681	}
682
683	static void
684	sigcb (EV_P_ ev_io *iow, int revents)
685	{
686	int signum;
687
688	read (sigpipe [0], &revents, 1);
689	gotsig = 0;
690
691	for (signum = signalmax; signum--; )
692	if (signals [signum].gotsig)
693	ev_feed_signal_event (EV_A_ signum + 1);
694	}
695
696	void inline_size	790	void inline_speed
697	fd_intern (int fd)	791	fd_intern (int fd)
698	{	792	{
699	#ifdef _WIN32	793	#ifdef _WIN32
700	int arg = 1;	794	int arg = 1;
701	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	795	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
704	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
705	#endif	799	#endif
706	}	800	}
707		801
708	static void noinline	802	static void noinline
709	siginit (EV_P)	803	evpipe_init (EV_P)
710	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
711	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
712	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
713		812
714	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
715	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
716	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* child watcher should not keep loop alive */
		816	}
		817	}
		818
		819	void inline_size
		820	evpipe_write (EV_P_ int sig, int async)
		821	{
		822	if (!(gotasync || gotsig))
		823	{
		824	int old_errno = errno;
		825
		826	if (sig) gotsig = 1;
		827	if (async) gotasync = 1;
		828
		829	write (evpipe [1], &old_errno, 1);
		830	errno = old_errno;
		831	}
		832	}
		833
		834	static void
		835	pipecb (EV_P_ ev_io *iow, int revents)
		836	{
		837	{
		838	int dummy;
		839	read (evpipe [0], &dummy, 1);
		840	}
		841
		842	if (gotsig)
		843	{
		844	int signum;
		845	gotsig = 0;
		846
		847	for (signum = signalmax; signum--; )
		848	if (signals [signum].gotsig)
		849	ev_feed_signal_event (EV_A_ signum + 1);
		850	}
		851
		852	if (gotasync)
		853	{
		854	int i;
		855	gotasync = 0;
		856
		857	for (i = asynccnt; i--; )
		858	if (asyncs [i]->sent)
		859	{
		860	asyncs [i]->sent = 0;
		861	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		862	}
		863	}
717	}	864	}
718		865
719	/*****************************************************************************/	866	/*****************************************************************************/
720		867
		868	static void
		869	sighandler (int signum)
		870	{
		871	#if EV_MULTIPLICITY
		872	struct ev_loop *loop = &default_loop_struct;
		873	#endif
		874
		875	#if _WIN32
		876	signal (signum, sighandler);
		877	#endif
		878
		879	signals [signum - 1].gotsig = 1;
		880	evpipe_write (EV_A_ 1, 0);
		881	}
		882
		883	void noinline
		884	ev_feed_signal_event (EV_P_ int signum)
		885	{
		886	WL w;
		887
		888	#if EV_MULTIPLICITY
		889	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		890	#endif
		891
		892	--signum;
		893
		894	if (signum < 0 || signum >= signalmax)
		895	return;
		896
		897	signals [signum].gotsig = 0;
		898
		899	for (w = signals [signum].head; w; w = w->next)
		900	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		901	}
		902
		903	/*****************************************************************************/
		904
721	static ev_child *childs [EV_PID_HASHSIZE];	905	static WL childs [EV_PID_HASHSIZE];
722		906
723	#ifndef _WIN32	907	#ifndef _WIN32
724		908
725	static ev_signal childev;	909	static ev_signal childev;
		910
		911	#ifndef WIFCONTINUED
		912	# define WIFCONTINUED(status) 0
		913	#endif
726		914
727	void inline_speed	915	void inline_speed
728	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	916	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
729	{	917	{
730	ev_child *w;	918	ev_child *w;
		919	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
731		920
732	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	921	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		922	{
733	if (w->pid == pid || !w->pid)	923	if ((w->pid == pid || !w->pid)
		924	&& (!traced || (w->flags & 1)))
734	{	925	{
735	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	926	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
736	w->rpid = pid;	927	w->rpid = pid;
737	w->rstatus = status;	928	w->rstatus = status;
738	ev_feed_event (EV_A_ (W)w, EV_CHILD);	929	ev_feed_event (EV_A_ (W)w, EV_CHILD);
739	}	930	}
		931	}
740	}	932	}
741		933
742	#ifndef WCONTINUED	934	#ifndef WCONTINUED
743	# define WCONTINUED 0	935	# define WCONTINUED 0
744	#endif	936	#endif
…		…
841	}	1033	}
842		1034
843	unsigned int	1035	unsigned int
844	ev_embeddable_backends (void)	1036	ev_embeddable_backends (void)
845	{	1037	{
846	return EVBACKEND_EPOLL	1038	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
847	| EVBACKEND_KQUEUE	1039
848	| EVBACKEND_PORT;	1040	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1041	/* please fix it and tell me how to detect the fix */
		1042	flags &= ~EVBACKEND_EPOLL;
		1043
		1044	return flags;
849	}	1045	}
850		1046
851	unsigned int	1047	unsigned int
852	ev_backend (EV_P)	1048	ev_backend (EV_P)
853	{	1049	{
854	return backend;	1050	return backend;
855	}	1051	}
856		1052
857	static void	1053	unsigned int
		1054	ev_loop_count (EV_P)
		1055	{
		1056	return loop_count;
		1057	}
		1058
		1059	void
		1060	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1061	{
		1062	io_blocktime = interval;
		1063	}
		1064
		1065	void
		1066	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1067	{
		1068	timeout_blocktime = interval;
		1069	}
		1070
		1071	static void noinline
858	loop_init (EV_P_ unsigned int flags)	1072	loop_init (EV_P_ unsigned int flags)
859	{	1073	{
860	if (!backend)	1074	if (!backend)
861	{	1075	{
862	#if EV_USE_MONOTONIC	1076	#if EV_USE_MONOTONIC
…		…
870	ev_rt_now = ev_time ();	1084	ev_rt_now = ev_time ();
871	mn_now = get_clock ();	1085	mn_now = get_clock ();
872	now_floor = mn_now;	1086	now_floor = mn_now;
873	rtmn_diff = ev_rt_now - mn_now;	1087	rtmn_diff = ev_rt_now - mn_now;
874		1088
		1089	io_blocktime = 0.;
		1090	timeout_blocktime = 0.;
		1091
		1092	/* pid check not overridable via env */
		1093	#ifndef _WIN32
		1094	if (flags & EVFLAG_FORKCHECK)
		1095	curpid = getpid ();
		1096	#endif
		1097
875	if (!(flags & EVFLAG_NOENV)	1098	if (!(flags & EVFLAG_NOENV)
876	&& !enable_secure ()	1099	&& !enable_secure ()
877	&& getenv ("LIBEV_FLAGS"))	1100	&& getenv ("LIBEV_FLAGS"))
878	flags = atoi (getenv ("LIBEV_FLAGS"));	1101	flags = atoi (getenv ("LIBEV_FLAGS"));
879		1102
880	if (!(flags & 0x0000ffffUL))	1103	if (!(flags & 0x0000ffffUL))
881	flags |= ev_recommended_backends ();	1104	flags |= ev_recommended_backends ();
882		1105
883	backend = 0;	1106	backend = 0;
		1107	backend_fd = -1;
		1108	#if EV_USE_INOTIFY
		1109	fs_fd = -2;
		1110	#endif
		1111
884	#if EV_USE_PORT	1112	#if EV_USE_PORT
885	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1113	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
886	#endif	1114	#endif
887	#if EV_USE_KQUEUE	1115	#if EV_USE_KQUEUE
888	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1116	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
895	#endif	1123	#endif
896	#if EV_USE_SELECT	1124	#if EV_USE_SELECT
897	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1125	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
898	#endif	1126	#endif
899		1127
900	ev_init (&sigev, sigcb);	1128	ev_init (&pipeev, pipecb);
901	ev_set_priority (&sigev, EV_MAXPRI);	1129	ev_set_priority (&pipeev, EV_MAXPRI);
902	}	1130	}
903	}	1131	}
904		1132
905	static void	1133	static void noinline
906	loop_destroy (EV_P)	1134	loop_destroy (EV_P)
907	{	1135	{
908	int i;	1136	int i;
		1137
		1138	if (ev_is_active (&pipeev))
		1139	{
		1140	ev_ref (EV_A); /* signal watcher */
		1141	ev_io_stop (EV_A_ &pipeev);
		1142
		1143	close (evpipe [0]); evpipe [0] = 0;
		1144	close (evpipe [1]); evpipe [1] = 0;
		1145	}
		1146
		1147	#if EV_USE_INOTIFY
		1148	if (fs_fd >= 0)
		1149	close (fs_fd);
		1150	#endif
		1151
		1152	if (backend_fd >= 0)
		1153	close (backend_fd);
909		1154
910	#if EV_USE_PORT	1155	#if EV_USE_PORT
911	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1156	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
912	#endif	1157	#endif
913	#if EV_USE_KQUEUE	1158	#if EV_USE_KQUEUE
…		…
922	#if EV_USE_SELECT	1167	#if EV_USE_SELECT
923	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1168	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
924	#endif	1169	#endif
925		1170
926	for (i = NUMPRI; i--; )	1171	for (i = NUMPRI; i--; )
		1172	{
927	array_free (pending, [i]);	1173	array_free (pending, [i]);
		1174	#if EV_IDLE_ENABLE
		1175	array_free (idle, [i]);
		1176	#endif
		1177	}
		1178
		1179	ev_free (anfds); anfdmax = 0;
928		1180
929	/* have to use the microsoft-never-gets-it-right macro */	1181	/* have to use the microsoft-never-gets-it-right macro */
930	array_free (fdchange, EMPTY0);	1182	array_free (fdchange, EMPTY);
931	array_free (timer, EMPTY0);	1183	array_free (timer, EMPTY);
932	#if EV_PERIODIC_ENABLE	1184	#if EV_PERIODIC_ENABLE
933	array_free (periodic, EMPTY0);	1185	array_free (periodic, EMPTY);
934	#endif	1186	#endif
		1187	#if EV_FORK_ENABLE
935	array_free (idle, EMPTY0);	1188	array_free (fork, EMPTY);
		1189	#endif
936	array_free (prepare, EMPTY0);	1190	array_free (prepare, EMPTY);
937	array_free (check, EMPTY0);	1191	array_free (check, EMPTY);
938		1192
939	backend = 0;	1193	backend = 0;
940	}	1194	}
941		1195
942	static void	1196	void inline_size infy_fork (EV_P);
		1197
		1198	void inline_size
943	loop_fork (EV_P)	1199	loop_fork (EV_P)
944	{	1200	{
945	#if EV_USE_PORT	1201	#if EV_USE_PORT
946	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1202	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
947	#endif	1203	#endif
…		…
949	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1205	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
950	#endif	1206	#endif
951	#if EV_USE_EPOLL	1207	#if EV_USE_EPOLL
952	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1208	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
953	#endif	1209	#endif
		1210	#if EV_USE_INOTIFY
		1211	infy_fork (EV_A);
		1212	#endif
954		1213
955	if (ev_is_active (&sigev))	1214	if (ev_is_active (&pipeev))
956	{	1215	{
957	/* default loop */	1216	/* this "locks" the handlers against writing to the pipe */
		1217	gotsig = gotasync = 1;
958		1218
959	ev_ref (EV_A);	1219	ev_ref (EV_A);
960	ev_io_stop (EV_A_ &sigev);	1220	ev_io_stop (EV_A_ &pipeev);
961	close (sigpipe [0]);	1221	close (evpipe [0]);
962	close (sigpipe [1]);	1222	close (evpipe [1]);
963		1223
964	while (pipe (sigpipe))
965	syserr ("(libev) error creating pipe");
966
967	siginit (EV_A);	1224	evpipe_init (EV_A);
		1225	/* now iterate over everything, in case we missed something */
		1226	pipecb (EV_A_ &pipeev, EV_READ);
968	}	1227	}
969		1228
970	postfork = 0;	1229	postfork = 0;
971	}	1230	}
972		1231
…		…
994	}	1253	}
995		1254
996	void	1255	void
997	ev_loop_fork (EV_P)	1256	ev_loop_fork (EV_P)
998	{	1257	{
999	postfork = 1;	1258	postfork = 1; /* must be in line with ev_default_fork */
1000	}	1259	}
1001		1260
1002	#endif	1261	#endif
1003		1262
1004	#if EV_MULTIPLICITY	1263	#if EV_MULTIPLICITY
…		…
1007	#else	1266	#else
1008	int	1267	int
1009	ev_default_loop (unsigned int flags)	1268	ev_default_loop (unsigned int flags)
1010	#endif	1269	#endif
1011	{	1270	{
1012	if (sigpipe [0] == sigpipe [1])
1013	if (pipe (sigpipe))
1014	return 0;
1015
1016	if (!ev_default_loop_ptr)	1271	if (!ev_default_loop_ptr)
1017	{	1272	{
1018	#if EV_MULTIPLICITY	1273	#if EV_MULTIPLICITY
1019	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1274	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1020	#else	1275	#else
…		…
1023		1278
1024	loop_init (EV_A_ flags);	1279	loop_init (EV_A_ flags);
1025		1280
1026	if (ev_backend (EV_A))	1281	if (ev_backend (EV_A))
1027	{	1282	{
1028	siginit (EV_A);
1029
1030	#ifndef _WIN32	1283	#ifndef _WIN32
1031	ev_signal_init (&childev, childcb, SIGCHLD);	1284	ev_signal_init (&childev, childcb, SIGCHLD);
1032	ev_set_priority (&childev, EV_MAXPRI);	1285	ev_set_priority (&childev, EV_MAXPRI);
1033	ev_signal_start (EV_A_ &childev);	1286	ev_signal_start (EV_A_ &childev);
1034	ev_unref (EV_A); /* child watcher should not keep loop alive */	1287	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1051	#ifndef _WIN32	1304	#ifndef _WIN32
1052	ev_ref (EV_A); /* child watcher */	1305	ev_ref (EV_A); /* child watcher */
1053	ev_signal_stop (EV_A_ &childev);	1306	ev_signal_stop (EV_A_ &childev);
1054	#endif	1307	#endif
1055		1308
1056	ev_ref (EV_A); /* signal watcher */
1057	ev_io_stop (EV_A_ &sigev);
1058
1059	close (sigpipe [0]); sigpipe [0] = 0;
1060	close (sigpipe [1]); sigpipe [1] = 0;
1061
1062	loop_destroy (EV_A);	1309	loop_destroy (EV_A);
1063	}	1310	}
1064		1311
1065	void	1312	void
1066	ev_default_fork (void)	1313	ev_default_fork (void)
…		…
1068	#if EV_MULTIPLICITY	1315	#if EV_MULTIPLICITY
1069	struct ev_loop *loop = ev_default_loop_ptr;	1316	struct ev_loop *loop = ev_default_loop_ptr;
1070	#endif	1317	#endif
1071		1318
1072	if (backend)	1319	if (backend)
1073	postfork = 1;	1320	postfork = 1; /* must be in line with ev_loop_fork */
1074	}	1321	}
1075		1322
1076	/*****************************************************************************/	1323	/*****************************************************************************/
1077		1324
1078	int inline_size	1325	void
1079	any_pending (EV_P)	1326	ev_invoke (EV_P_ void *w, int revents)
1080	{	1327	{
1081	int pri;	1328	EV_CB_INVOKE ((W)w, revents);
1082
1083	for (pri = NUMPRI; pri--; )
1084	if (pendingcnt [pri])
1085	return 1;
1086
1087	return 0;
1088	}	1329	}
1089		1330
1090	void inline_speed	1331	void inline_speed
1091	call_pending (EV_P)	1332	call_pending (EV_P)
1092	{	1333	{
…		…
1097	{	1338	{
1098	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1339	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1099		1340
1100	if (expect_true (p->w))	1341	if (expect_true (p->w))
1101	{	1342	{
1102	assert (("non-pending watcher on pending list", p->w->pending));	1343	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1103		1344
1104	p->w->pending = 0;	1345	p->w->pending = 0;
1105	EV_CB_INVOKE (p->w, p->events);	1346	EV_CB_INVOKE (p->w, p->events);
1106	}	1347	}
1107	}	1348	}
…		…
1110	void inline_size	1351	void inline_size
1111	timers_reify (EV_P)	1352	timers_reify (EV_P)
1112	{	1353	{
1113	while (timercnt && ((WT)timers [0])->at <= mn_now)	1354	while (timercnt && ((WT)timers [0])->at <= mn_now)
1114	{	1355	{
1115	ev_timer *w = timers [0];	1356	ev_timer *w = (ev_timer *)timers [0];
1116		1357
1117	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1358	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1118		1359
1119	/* first reschedule or stop timer */	1360	/* first reschedule or stop timer */
1120	if (w->repeat)	1361	if (w->repeat)
1121	{	1362	{
1122	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1363	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1123		1364
1124	((WT)w)->at += w->repeat;	1365	((WT)w)->at += w->repeat;
1125	if (((WT)w)->at < mn_now)	1366	if (((WT)w)->at < mn_now)
1126	((WT)w)->at = mn_now;	1367	((WT)w)->at = mn_now;
1127		1368
1128	downheap ((WT *)timers, timercnt, 0);	1369	downheap (timers, timercnt, 0);
1129	}	1370	}
1130	else	1371	else
1131	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1372	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1132		1373
1133	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1374	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1138	void inline_size	1379	void inline_size
1139	periodics_reify (EV_P)	1380	periodics_reify (EV_P)
1140	{	1381	{
1141	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1382	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1142	{	1383	{
1143	ev_periodic *w = periodics [0];	1384	ev_periodic *w = (ev_periodic *)periodics [0];
1144		1385
1145	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1386	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1146		1387
1147	/* first reschedule or stop timer */	1388	/* first reschedule or stop timer */
1148	if (w->reschedule_cb)	1389	if (w->reschedule_cb)
1149	{	1390	{
1150	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1391	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1151	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1392	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1152	downheap ((WT *)periodics, periodiccnt, 0);	1393	downheap (periodics, periodiccnt, 0);
1153	}	1394	}
1154	else if (w->interval)	1395	else if (w->interval)
1155	{	1396	{
1156	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1397	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1398	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1157	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1399	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1158	downheap ((WT *)periodics, periodiccnt, 0);	1400	downheap (periodics, periodiccnt, 0);
1159	}	1401	}
1160	else	1402	else
1161	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1403	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1162		1404
1163	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1405	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1170	int i;	1412	int i;
1171		1413
1172	/* adjust periodics after time jump */	1414	/* adjust periodics after time jump */
1173	for (i = 0; i < periodiccnt; ++i)	1415	for (i = 0; i < periodiccnt; ++i)
1174	{	1416	{
1175	ev_periodic *w = periodics [i];	1417	ev_periodic *w = (ev_periodic *)periodics [i];
1176		1418
1177	if (w->reschedule_cb)	1419	if (w->reschedule_cb)
1178	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1420	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1179	else if (w->interval)	1421	else if (w->interval)
1180	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1422	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1181	}	1423	}
1182		1424
1183	/* now rebuild the heap */	1425	/* now rebuild the heap */
1184	for (i = periodiccnt >> 1; i--; )	1426	for (i = periodiccnt >> 1; i--; )
1185	downheap ((WT *)periodics, periodiccnt, i);	1427	downheap (periodics, periodiccnt, i);
1186	}	1428	}
1187	#endif	1429	#endif
1188		1430
		1431	#if EV_IDLE_ENABLE
1189	int inline_size	1432	void inline_size
1190	time_update_monotonic (EV_P)	1433	idle_reify (EV_P)
1191	{	1434	{
		1435	if (expect_false (idleall))
		1436	{
		1437	int pri;
		1438
		1439	for (pri = NUMPRI; pri--; )
		1440	{
		1441	if (pendingcnt [pri])
		1442	break;
		1443
		1444	if (idlecnt [pri])
		1445	{
		1446	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1447	break;
		1448	}
		1449	}
		1450	}
		1451	}
		1452	#endif
		1453
		1454	void inline_speed
		1455	time_update (EV_P_ ev_tstamp max_block)
		1456	{
		1457	int i;
		1458
		1459	#if EV_USE_MONOTONIC
		1460	if (expect_true (have_monotonic))
		1461	{
		1462	ev_tstamp odiff = rtmn_diff;
		1463
1192	mn_now = get_clock ();	1464	mn_now = get_clock ();
1193		1465
		1466	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1467	/* interpolate in the meantime */
1194	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1468	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1195	{	1469	{
1196	ev_rt_now = rtmn_diff + mn_now;	1470	ev_rt_now = rtmn_diff + mn_now;
1197	return 0;	1471	return;
1198	}	1472	}
1199	else	1473
1200	{
1201	now_floor = mn_now;	1474	now_floor = mn_now;
1202	ev_rt_now = ev_time ();	1475	ev_rt_now = ev_time ();
1203	return 1;
1204	}
1205	}
1206		1476
1207	void inline_size	1477	/* loop a few times, before making important decisions.
1208	time_update (EV_P)	1478	* on the choice of "4": one iteration isn't enough,
1209	{	1479	* in case we get preempted during the calls to
1210	int i;	1480	* ev_time and get_clock. a second call is almost guaranteed
1211		1481	* to succeed in that case, though. and looping a few more times
1212	#if EV_USE_MONOTONIC	1482	* doesn't hurt either as we only do this on time-jumps or
1213	if (expect_true (have_monotonic))	1483	* in the unlikely event of having been preempted here.
1214	{	1484	*/
1215	if (time_update_monotonic (EV_A))	1485	for (i = 4; --i; )
1216	{	1486	{
1217	ev_tstamp odiff = rtmn_diff;
1218
1219	/* loop a few times, before making important decisions.
1220	* on the choice of "4": one iteration isn't enough,
1221	* in case we get preempted during the calls to
1222	* ev_time and get_clock. a second call is almost guarenteed
1223	* to succeed in that case, though. and looping a few more times
1224	* doesn't hurt either as we only do this on time-jumps or
1225	* in the unlikely event of getting preempted here.
1226	*/
1227	for (i = 4; --i; )
1228	{
1229	rtmn_diff = ev_rt_now - mn_now;	1487	rtmn_diff = ev_rt_now - mn_now;
1230		1488
1231	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1489	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1232	return; /* all is well */	1490	return; /* all is well */
1233		1491
1234	ev_rt_now = ev_time ();	1492	ev_rt_now = ev_time ();
1235	mn_now = get_clock ();	1493	mn_now = get_clock ();
1236	now_floor = mn_now;	1494	now_floor = mn_now;
1237	}	1495	}
1238		1496
1239	# if EV_PERIODIC_ENABLE	1497	# if EV_PERIODIC_ENABLE
1240	periodics_reschedule (EV_A);	1498	periodics_reschedule (EV_A);
1241	# endif	1499	# endif
1242	/* no timer adjustment, as the monotonic clock doesn't jump */	1500	/* no timer adjustment, as the monotonic clock doesn't jump */
1243	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1501	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1244	}
1245	}	1502	}
1246	else	1503	else
1247	#endif	1504	#endif
1248	{	1505	{
1249	ev_rt_now = ev_time ();	1506	ev_rt_now = ev_time ();
1250		1507
1251	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1508	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1252	{	1509	{
1253	#if EV_PERIODIC_ENABLE	1510	#if EV_PERIODIC_ENABLE
1254	periodics_reschedule (EV_A);	1511	periodics_reschedule (EV_A);
1255	#endif	1512	#endif
1256
1257	/* adjust timers. this is easy, as the offset is the same for all */	1513	/* adjust timers. this is easy, as the offset is the same for all of them */
1258	for (i = 0; i < timercnt; ++i)	1514	for (i = 0; i < timercnt; ++i)
1259	((WT)timers [i])->at += ev_rt_now - mn_now;	1515	((WT)timers [i])->at += ev_rt_now - mn_now;
1260	}	1516	}
1261		1517
1262	mn_now = ev_rt_now;	1518	mn_now = ev_rt_now;
…		…
1282	{	1538	{
1283	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1539	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1284	? EVUNLOOP_ONE	1540	? EVUNLOOP_ONE
1285	: EVUNLOOP_CANCEL;	1541	: EVUNLOOP_CANCEL;
1286		1542
1287	while (activecnt)	1543	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1544
		1545	do
1288	{	1546	{
1289	/* we might have forked, so reify kernel state if necessary */	1547	#ifndef _WIN32
		1548	if (expect_false (curpid)) /* penalise the forking check even more */
		1549	if (expect_false (getpid () != curpid))
		1550	{
		1551	curpid = getpid ();
		1552	postfork = 1;
		1553	}
		1554	#endif
		1555
1290	#if EV_FORK_ENABLE	1556	#if EV_FORK_ENABLE
		1557	/* we might have forked, so queue fork handlers */
1291	if (expect_false (postfork))	1558	if (expect_false (postfork))
1292	if (forkcnt)	1559	if (forkcnt)
1293	{	1560	{
1294	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1561	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1295	call_pending (EV_A);	1562	call_pending (EV_A);
1296	}	1563	}
1297	#endif	1564	#endif
1298		1565
1299	/* queue check watchers (and execute them) */	1566	/* queue prepare watchers (and execute them) */
1300	if (expect_false (preparecnt))	1567	if (expect_false (preparecnt))
1301	{	1568	{
1302	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1569	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1303	call_pending (EV_A);	1570	call_pending (EV_A);
1304	}	1571	}
1305		1572
		1573	if (expect_false (!activecnt))
		1574	break;
		1575
1306	/* we might have forked, so reify kernel state if necessary */	1576	/* we might have forked, so reify kernel state if necessary */
1307	if (expect_false (postfork))	1577	if (expect_false (postfork))
1308	loop_fork (EV_A);	1578	loop_fork (EV_A);
1309		1579
1310	/* update fd-related kernel structures */	1580	/* update fd-related kernel structures */
1311	fd_reify (EV_A);	1581	fd_reify (EV_A);
1312		1582
1313	/* calculate blocking time */	1583	/* calculate blocking time */
1314	{	1584	{
1315	double block;	1585	ev_tstamp waittime = 0.;
		1586	ev_tstamp sleeptime = 0.;
1316		1587
1317	if (flags & EVLOOP_NONBLOCK || idlecnt)	1588	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1318	block = 0.; /* do not block at all */
1319	else
1320	{	1589	{
1321	/* update time to cancel out callback processing overhead */	1590	/* update time to cancel out callback processing overhead */
1322	#if EV_USE_MONOTONIC
1323	if (expect_true (have_monotonic))
1324	time_update_monotonic (EV_A);	1591	time_update (EV_A_ 1e100);
1325	else
1326	#endif
1327	{
1328	ev_rt_now = ev_time ();
1329	mn_now = ev_rt_now;
1330	}
1331		1592
1332	block = MAX_BLOCKTIME;	1593	waittime = MAX_BLOCKTIME;
1333		1594
1334	if (timercnt)	1595	if (timercnt)
1335	{	1596	{
1336	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1597	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1337	if (block > to) block = to;	1598	if (waittime > to) waittime = to;
1338	}	1599	}
1339		1600
1340	#if EV_PERIODIC_ENABLE	1601	#if EV_PERIODIC_ENABLE
1341	if (periodiccnt)	1602	if (periodiccnt)
1342	{	1603	{
1343	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1604	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1344	if (block > to) block = to;	1605	if (waittime > to) waittime = to;
1345	}	1606	}
1346	#endif	1607	#endif
1347		1608
1348	if (expect_false (block < 0.)) block = 0.;	1609	if (expect_false (waittime < timeout_blocktime))
		1610	waittime = timeout_blocktime;
		1611
		1612	sleeptime = waittime - backend_fudge;
		1613
		1614	if (expect_true (sleeptime > io_blocktime))
		1615	sleeptime = io_blocktime;
		1616
		1617	if (sleeptime)
		1618	{
		1619	ev_sleep (sleeptime);
		1620	waittime -= sleeptime;
		1621	}
1349	}	1622	}
1350		1623
		1624	++loop_count;
1351	backend_poll (EV_A_ block);	1625	backend_poll (EV_A_ waittime);
		1626
		1627	/* update ev_rt_now, do magic */
		1628	time_update (EV_A_ waittime + sleeptime);
1352	}	1629	}
1353
1354	/* update ev_rt_now, do magic */
1355	time_update (EV_A);
1356		1630
1357	/* queue pending timers and reschedule them */	1631	/* queue pending timers and reschedule them */
1358	timers_reify (EV_A); /* relative timers called last */	1632	timers_reify (EV_A); /* relative timers called last */
1359	#if EV_PERIODIC_ENABLE	1633	#if EV_PERIODIC_ENABLE
1360	periodics_reify (EV_A); /* absolute timers called first */	1634	periodics_reify (EV_A); /* absolute timers called first */
1361	#endif	1635	#endif
1362		1636
		1637	#if EV_IDLE_ENABLE
1363	/* queue idle watchers unless other events are pending */	1638	/* queue idle watchers unless other events are pending */
1364	if (idlecnt && !any_pending (EV_A))	1639	idle_reify (EV_A);
1365	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1640	#endif
1366		1641
1367	/* queue check watchers, to be executed first */	1642	/* queue check watchers, to be executed first */
1368	if (expect_false (checkcnt))	1643	if (expect_false (checkcnt))
1369	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1644	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1370		1645
1371	call_pending (EV_A);	1646	call_pending (EV_A);
1372		1647
1373	if (expect_false (loop_done))
1374	break;
1375	}	1648	}
		1649	while (expect_true (activecnt && !loop_done));
1376		1650
1377	if (loop_done == EVUNLOOP_ONE)	1651	if (loop_done == EVUNLOOP_ONE)
1378	loop_done = EVUNLOOP_CANCEL;	1652	loop_done = EVUNLOOP_CANCEL;
1379	}	1653	}
1380		1654
…		…
1407	head = &(*head)->next;	1681	head = &(*head)->next;
1408	}	1682	}
1409	}	1683	}
1410		1684
1411	void inline_speed	1685	void inline_speed
1412	ev_clear_pending (EV_P_ W w)	1686	clear_pending (EV_P_ W w)
1413	{	1687	{
1414	if (w->pending)	1688	if (w->pending)
1415	{	1689	{
1416	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1690	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1417	w->pending = 0;	1691	w->pending = 0;
1418	}	1692	}
1419	}	1693	}
1420		1694
		1695	int
		1696	ev_clear_pending (EV_P_ void *w)
		1697	{
		1698	W w_ = (W)w;
		1699	int pending = w_->pending;
		1700
		1701	if (expect_true (pending))
		1702	{
		1703	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1704	w_->pending = 0;
		1705	p->w = 0;
		1706	return p->events;
		1707	}
		1708	else
		1709	return 0;
		1710	}
		1711
		1712	void inline_size
		1713	pri_adjust (EV_P_ W w)
		1714	{
		1715	int pri = w->priority;
		1716	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1717	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1718	w->priority = pri;
		1719	}
		1720
1421	void inline_speed	1721	void inline_speed
1422	ev_start (EV_P_ W w, int active)	1722	ev_start (EV_P_ W w, int active)
1423	{	1723	{
1424	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1724	pri_adjust (EV_A_ w);
1425	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1426
1427	w->active = active;	1725	w->active = active;
1428	ev_ref (EV_A);	1726	ev_ref (EV_A);
1429	}	1727	}
1430		1728
1431	void inline_size	1729	void inline_size
…		…
1435	w->active = 0;	1733	w->active = 0;
1436	}	1734	}
1437		1735
1438	/*****************************************************************************/	1736	/*****************************************************************************/
1439		1737
1440	void	1738	void noinline
1441	ev_io_start (EV_P_ ev_io *w)	1739	ev_io_start (EV_P_ ev_io *w)
1442	{	1740	{
1443	int fd = w->fd;	1741	int fd = w->fd;
1444		1742
1445	if (expect_false (ev_is_active (w)))	1743	if (expect_false (ev_is_active (w)))
…		…
1447		1745
1448	assert (("ev_io_start called with negative fd", fd >= 0));	1746	assert (("ev_io_start called with negative fd", fd >= 0));
1449		1747
1450	ev_start (EV_A_ (W)w, 1);	1748	ev_start (EV_A_ (W)w, 1);
1451	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1749	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1452	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1750	wlist_add (&anfds[fd].head, (WL)w);
1453		1751
1454	fd_change (EV_A_ fd);	1752	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1753	w->events &= ~EV_IOFDSET;
1455	}	1754	}
1456		1755
1457	void	1756	void noinline
1458	ev_io_stop (EV_P_ ev_io *w)	1757	ev_io_stop (EV_P_ ev_io *w)
1459	{	1758	{
1460	ev_clear_pending (EV_A_ (W)w);	1759	clear_pending (EV_A_ (W)w);
1461	if (expect_false (!ev_is_active (w)))	1760	if (expect_false (!ev_is_active (w)))
1462	return;	1761	return;
1463		1762
1464	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1763	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1465		1764
1466	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1765	wlist_del (&anfds[w->fd].head, (WL)w);
1467	ev_stop (EV_A_ (W)w);	1766	ev_stop (EV_A_ (W)w);
1468		1767
1469	fd_change (EV_A_ w->fd);	1768	fd_change (EV_A_ w->fd, 1);
1470	}	1769	}
1471		1770
1472	void	1771	void noinline
1473	ev_timer_start (EV_P_ ev_timer *w)	1772	ev_timer_start (EV_P_ ev_timer *w)
1474	{	1773	{
1475	if (expect_false (ev_is_active (w)))	1774	if (expect_false (ev_is_active (w)))
1476	return;	1775	return;
1477		1776
1478	((WT)w)->at += mn_now;	1777	((WT)w)->at += mn_now;
1479		1778
1480	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1779	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1481		1780
1482	ev_start (EV_A_ (W)w, ++timercnt);	1781	ev_start (EV_A_ (W)w, ++timercnt);
1483	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1782	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1484	timers [timercnt - 1] = w;	1783	timers [timercnt - 1] = (WT)w;
1485	upheap ((WT *)timers, timercnt - 1);	1784	upheap (timers, timercnt - 1);
1486		1785
1487	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1786	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1488	}	1787	}
1489		1788
1490	void	1789	void noinline
1491	ev_timer_stop (EV_P_ ev_timer *w)	1790	ev_timer_stop (EV_P_ ev_timer *w)
1492	{	1791	{
1493	ev_clear_pending (EV_A_ (W)w);	1792	clear_pending (EV_A_ (W)w);
1494	if (expect_false (!ev_is_active (w)))	1793	if (expect_false (!ev_is_active (w)))
1495	return;	1794	return;
1496		1795
1497	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1796	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1498		1797
		1798	{
		1799	int active = ((W)w)->active;
		1800
1499	if (expect_true (((W)w)->active < timercnt--))	1801	if (expect_true (--active < --timercnt))
1500	{	1802	{
1501	timers [((W)w)->active - 1] = timers [timercnt];	1803	timers [active] = timers [timercnt];
1502	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1804	adjustheap (timers, timercnt, active);
1503	}	1805	}
		1806	}
1504		1807
1505	((WT)w)->at -= mn_now;	1808	((WT)w)->at -= mn_now;
1506		1809
1507	ev_stop (EV_A_ (W)w);	1810	ev_stop (EV_A_ (W)w);
1508	}	1811	}
1509		1812
1510	void	1813	void noinline
1511	ev_timer_again (EV_P_ ev_timer *w)	1814	ev_timer_again (EV_P_ ev_timer *w)
1512	{	1815	{
1513	if (ev_is_active (w))	1816	if (ev_is_active (w))
1514	{	1817	{
1515	if (w->repeat)	1818	if (w->repeat)
1516	{	1819	{
1517	((WT)w)->at = mn_now + w->repeat;	1820	((WT)w)->at = mn_now + w->repeat;
1518	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1821	adjustheap (timers, timercnt, ((W)w)->active - 1);
1519	}	1822	}
1520	else	1823	else
1521	ev_timer_stop (EV_A_ w);	1824	ev_timer_stop (EV_A_ w);
1522	}	1825	}
1523	else if (w->repeat)	1826	else if (w->repeat)
…		…
1526	ev_timer_start (EV_A_ w);	1829	ev_timer_start (EV_A_ w);
1527	}	1830	}
1528	}	1831	}
1529		1832
1530	#if EV_PERIODIC_ENABLE	1833	#if EV_PERIODIC_ENABLE
1531	void	1834	void noinline
1532	ev_periodic_start (EV_P_ ev_periodic *w)	1835	ev_periodic_start (EV_P_ ev_periodic *w)
1533	{	1836	{
1534	if (expect_false (ev_is_active (w)))	1837	if (expect_false (ev_is_active (w)))
1535	return;	1838	return;
1536		1839
…		…
1538	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1841	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1539	else if (w->interval)	1842	else if (w->interval)
1540	{	1843	{
1541	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1844	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1542	/* this formula differs from the one in periodic_reify because we do not always round up */	1845	/* this formula differs from the one in periodic_reify because we do not always round up */
1543	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1846	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1544	}	1847	}
		1848	else
		1849	((WT)w)->at = w->offset;
1545		1850
1546	ev_start (EV_A_ (W)w, ++periodiccnt);	1851	ev_start (EV_A_ (W)w, ++periodiccnt);
1547	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1852	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1548	periodics [periodiccnt - 1] = w;	1853	periodics [periodiccnt - 1] = (WT)w;
1549	upheap ((WT *)periodics, periodiccnt - 1);	1854	upheap (periodics, periodiccnt - 1);
1550		1855
1551	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1856	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1552	}	1857	}
1553		1858
1554	void	1859	void noinline
1555	ev_periodic_stop (EV_P_ ev_periodic *w)	1860	ev_periodic_stop (EV_P_ ev_periodic *w)
1556	{	1861	{
1557	ev_clear_pending (EV_A_ (W)w);	1862	clear_pending (EV_A_ (W)w);
1558	if (expect_false (!ev_is_active (w)))	1863	if (expect_false (!ev_is_active (w)))
1559	return;	1864	return;
1560		1865
1561	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1866	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1562		1867
		1868	{
		1869	int active = ((W)w)->active;
		1870
1563	if (expect_true (((W)w)->active < periodiccnt--))	1871	if (expect_true (--active < --periodiccnt))
1564	{	1872	{
1565	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1873	periodics [active] = periodics [periodiccnt];
1566	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1874	adjustheap (periodics, periodiccnt, active);
1567	}	1875	}
		1876	}
1568		1877
1569	ev_stop (EV_A_ (W)w);	1878	ev_stop (EV_A_ (W)w);
1570	}	1879	}
1571		1880
1572	void	1881	void noinline
1573	ev_periodic_again (EV_P_ ev_periodic *w)	1882	ev_periodic_again (EV_P_ ev_periodic *w)
1574	{	1883	{
1575	/* TODO: use adjustheap and recalculation */	1884	/* TODO: use adjustheap and recalculation */
1576	ev_periodic_stop (EV_A_ w);	1885	ev_periodic_stop (EV_A_ w);
1577	ev_periodic_start (EV_A_ w);	1886	ev_periodic_start (EV_A_ w);
…		…
1580		1889
1581	#ifndef SA_RESTART	1890	#ifndef SA_RESTART
1582	# define SA_RESTART 0	1891	# define SA_RESTART 0
1583	#endif	1892	#endif
1584		1893
1585	void	1894	void noinline
1586	ev_signal_start (EV_P_ ev_signal *w)	1895	ev_signal_start (EV_P_ ev_signal *w)
1587	{	1896	{
1588	#if EV_MULTIPLICITY	1897	#if EV_MULTIPLICITY
1589	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1898	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1590	#endif	1899	#endif
1591	if (expect_false (ev_is_active (w)))	1900	if (expect_false (ev_is_active (w)))
1592	return;	1901	return;
1593		1902
1594	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1903	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1595		1904
		1905	evpipe_init (EV_A);
		1906
		1907	{
		1908	#ifndef _WIN32
		1909	sigset_t full, prev;
		1910	sigfillset (&full);
		1911	sigprocmask (SIG_SETMASK, &full, &prev);
		1912	#endif
		1913
		1914	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1915
		1916	#ifndef _WIN32
		1917	sigprocmask (SIG_SETMASK, &prev, 0);
		1918	#endif
		1919	}
		1920
1596	ev_start (EV_A_ (W)w, 1);	1921	ev_start (EV_A_ (W)w, 1);
1597	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1598	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1922	wlist_add (&signals [w->signum - 1].head, (WL)w);
1599		1923
1600	if (!((WL)w)->next)	1924	if (!((WL)w)->next)
1601	{	1925	{
1602	#if _WIN32	1926	#if _WIN32
1603	signal (w->signum, sighandler);	1927	signal (w->signum, sighandler);
…		…
1609	sigaction (w->signum, &sa, 0);	1933	sigaction (w->signum, &sa, 0);
1610	#endif	1934	#endif
1611	}	1935	}
1612	}	1936	}
1613		1937
1614	void	1938	void noinline
1615	ev_signal_stop (EV_P_ ev_signal *w)	1939	ev_signal_stop (EV_P_ ev_signal *w)
1616	{	1940	{
1617	ev_clear_pending (EV_A_ (W)w);	1941	clear_pending (EV_A_ (W)w);
1618	if (expect_false (!ev_is_active (w)))	1942	if (expect_false (!ev_is_active (w)))
1619	return;	1943	return;
1620		1944
1621	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1945	wlist_del (&signals [w->signum - 1].head, (WL)w);
1622	ev_stop (EV_A_ (W)w);	1946	ev_stop (EV_A_ (W)w);
1623		1947
1624	if (!signals [w->signum - 1].head)	1948	if (!signals [w->signum - 1].head)
1625	signal (w->signum, SIG_DFL);	1949	signal (w->signum, SIG_DFL);
1626	}	1950	}
…		…
1633	#endif	1957	#endif
1634	if (expect_false (ev_is_active (w)))	1958	if (expect_false (ev_is_active (w)))
1635	return;	1959	return;
1636		1960
1637	ev_start (EV_A_ (W)w, 1);	1961	ev_start (EV_A_ (W)w, 1);
1638	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1962	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1639	}	1963	}
1640		1964
1641	void	1965	void
1642	ev_child_stop (EV_P_ ev_child *w)	1966	ev_child_stop (EV_P_ ev_child *w)
1643	{	1967	{
1644	ev_clear_pending (EV_A_ (W)w);	1968	clear_pending (EV_A_ (W)w);
1645	if (expect_false (!ev_is_active (w)))	1969	if (expect_false (!ev_is_active (w)))
1646	return;	1970	return;
1647		1971
1648	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1972	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1649	ev_stop (EV_A_ (W)w);	1973	ev_stop (EV_A_ (W)w);
1650	}	1974	}
1651		1975
1652	#if EV_STAT_ENABLE	1976	#if EV_STAT_ENABLE
1653		1977
…		…
1657	# endif	1981	# endif
1658		1982
1659	#define DEF_STAT_INTERVAL 5.0074891	1983	#define DEF_STAT_INTERVAL 5.0074891
1660	#define MIN_STAT_INTERVAL 0.1074891	1984	#define MIN_STAT_INTERVAL 0.1074891
1661		1985
		1986	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1987
		1988	#if EV_USE_INOTIFY
		1989	# define EV_INOTIFY_BUFSIZE 8192
		1990
		1991	static void noinline
		1992	infy_add (EV_P_ ev_stat *w)
		1993	{
		1994	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);
		1995
		1996	if (w->wd < 0)
		1997	{
		1998	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1999
		2000	/* monitor some parent directory for speedup hints */
		2001	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		2002	{
		2003	char path [4096];
		2004	strcpy (path, w->path);
		2005
		2006	do
		2007	{
		2008	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		2009	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		2010
		2011	char *pend = strrchr (path, '/');
		2012
		2013	if (!pend)
		2014	break; /* whoops, no '/', complain to your admin */
		2015
		2016	*pend = 0;
		2017	w->wd = inotify_add_watch (fs_fd, path, mask);
		2018	}
		2019	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		2020	}
		2021	}
		2022	else
		2023	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		2024
		2025	if (w->wd >= 0)
		2026	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2027	}
		2028
		2029	static void noinline
		2030	infy_del (EV_P_ ev_stat *w)
		2031	{
		2032	int slot;
		2033	int wd = w->wd;
		2034
		2035	if (wd < 0)
		2036	return;
		2037
		2038	w->wd = -2;
		2039	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		2040	wlist_del (&fs_hash [slot].head, (WL)w);
		2041
		2042	/* remove this watcher, if others are watching it, they will rearm */
		2043	inotify_rm_watch (fs_fd, wd);
		2044	}
		2045
		2046	static void noinline
		2047	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2048	{
		2049	if (slot < 0)
		2050	/* overflow, need to check for all hahs slots */
		2051	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2052	infy_wd (EV_A_ slot, wd, ev);
		2053	else
		2054	{
		2055	WL w_;
		2056
		2057	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2058	{
		2059	ev_stat *w = (ev_stat *)w_;
		2060	w_ = w_->next; /* lets us remove this watcher and all before it */
		2061
		2062	if (w->wd == wd || wd == -1)
		2063	{
		2064	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2065	{
		2066	w->wd = -1;
		2067	infy_add (EV_A_ w); /* re-add, no matter what */
		2068	}
		2069
		2070	stat_timer_cb (EV_A_ &w->timer, 0);
		2071	}
		2072	}
		2073	}
		2074	}
		2075
		2076	static void
		2077	infy_cb (EV_P_ ev_io *w, int revents)
		2078	{
		2079	char buf [EV_INOTIFY_BUFSIZE];
		2080	struct inotify_event *ev = (struct inotify_event *)buf;
		2081	int ofs;
		2082	int len = read (fs_fd, buf, sizeof (buf));
		2083
		2084	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2085	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2086	}
		2087
		2088	void inline_size
		2089	infy_init (EV_P)
		2090	{
		2091	if (fs_fd != -2)
		2092	return;
		2093
		2094	fs_fd = inotify_init ();
		2095
		2096	if (fs_fd >= 0)
		2097	{
		2098	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2099	ev_set_priority (&fs_w, EV_MAXPRI);
		2100	ev_io_start (EV_A_ &fs_w);
		2101	}
		2102	}
		2103
		2104	void inline_size
		2105	infy_fork (EV_P)
		2106	{
		2107	int slot;
		2108
		2109	if (fs_fd < 0)
		2110	return;
		2111
		2112	close (fs_fd);
		2113	fs_fd = inotify_init ();
		2114
		2115	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2116	{
		2117	WL w_ = fs_hash [slot].head;
		2118	fs_hash [slot].head = 0;
		2119
		2120	while (w_)
		2121	{
		2122	ev_stat *w = (ev_stat *)w_;
		2123	w_ = w_->next; /* lets us add this watcher */
		2124
		2125	w->wd = -1;
		2126
		2127	if (fs_fd >= 0)
		2128	infy_add (EV_A_ w); /* re-add, no matter what */
		2129	else
		2130	ev_timer_start (EV_A_ &w->timer);
		2131	}
		2132
		2133	}
		2134	}
		2135
		2136	#endif
		2137
1662	void	2138	void
1663	ev_stat_stat (EV_P_ ev_stat *w)	2139	ev_stat_stat (EV_P_ ev_stat *w)
1664	{	2140	{
1665	if (lstat (w->path, &w->attr) < 0)	2141	if (lstat (w->path, &w->attr) < 0)
1666	w->attr.st_nlink = 0;	2142	w->attr.st_nlink = 0;
1667	else if (!w->attr.st_nlink)	2143	else if (!w->attr.st_nlink)
1668	w->attr.st_nlink = 1;	2144	w->attr.st_nlink = 1;
1669	}	2145	}
1670		2146
1671	static void	2147	static void noinline
1672	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2148	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1673	{	2149	{
1674	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	2150	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1675		2151
1676	/* we copy this here each the time so that */	2152	/* we copy this here each the time so that */
1677	/* prev has the old value when the callback gets invoked */	2153	/* prev has the old value when the callback gets invoked */
1678	w->prev = w->attr;	2154	w->prev = w->attr;
1679	ev_stat_stat (EV_A_ w);	2155	ev_stat_stat (EV_A_ w);
1680		2156
1681	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2157	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2158	if (
		2159	w->prev.st_dev != w->attr.st_dev
		2160	|| w->prev.st_ino != w->attr.st_ino
		2161	|| w->prev.st_mode != w->attr.st_mode
		2162	|| w->prev.st_nlink != w->attr.st_nlink
		2163	|| w->prev.st_uid != w->attr.st_uid
		2164	|| w->prev.st_gid != w->attr.st_gid
		2165	|| w->prev.st_rdev != w->attr.st_rdev
		2166	|| w->prev.st_size != w->attr.st_size
		2167	|| w->prev.st_atime != w->attr.st_atime
		2168	|| w->prev.st_mtime != w->attr.st_mtime
		2169	|| w->prev.st_ctime != w->attr.st_ctime
		2170	) {
		2171	#if EV_USE_INOTIFY
		2172	infy_del (EV_A_ w);
		2173	infy_add (EV_A_ w);
		2174	ev_stat_stat (EV_A_ w); /* avoid race... */
		2175	#endif
		2176
1682	ev_feed_event (EV_A_ w, EV_STAT);	2177	ev_feed_event (EV_A_ w, EV_STAT);
		2178	}
1683	}	2179	}
1684		2180
1685	void	2181	void
1686	ev_stat_start (EV_P_ ev_stat *w)	2182	ev_stat_start (EV_P_ ev_stat *w)
1687	{	2183	{
…		…
1697	if (w->interval < MIN_STAT_INTERVAL)	2193	if (w->interval < MIN_STAT_INTERVAL)
1698	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;	2194	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1699		2195
1700	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2196	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1701	ev_set_priority (&w->timer, ev_priority (w));	2197	ev_set_priority (&w->timer, ev_priority (w));
		2198
		2199	#if EV_USE_INOTIFY
		2200	infy_init (EV_A);
		2201
		2202	if (fs_fd >= 0)
		2203	infy_add (EV_A_ w);
		2204	else
		2205	#endif
1702	ev_timer_start (EV_A_ &w->timer);	2206	ev_timer_start (EV_A_ &w->timer);
1703		2207
1704	ev_start (EV_A_ (W)w, 1);	2208	ev_start (EV_A_ (W)w, 1);
1705	}	2209	}
1706		2210
1707	void	2211	void
1708	ev_stat_stop (EV_P_ ev_stat *w)	2212	ev_stat_stop (EV_P_ ev_stat *w)
1709	{	2213	{
1710	ev_clear_pending (EV_A_ (W)w);	2214	clear_pending (EV_A_ (W)w);
1711	if (expect_false (!ev_is_active (w)))	2215	if (expect_false (!ev_is_active (w)))
1712	return;	2216	return;
1713		2217
		2218	#if EV_USE_INOTIFY
		2219	infy_del (EV_A_ w);
		2220	#endif
1714	ev_timer_stop (EV_A_ &w->timer);	2221	ev_timer_stop (EV_A_ &w->timer);
1715		2222
1716	ev_stop (EV_A_ (W)w);	2223	ev_stop (EV_A_ (W)w);
1717	}	2224	}
1718	#endif	2225	#endif
1719		2226
		2227	#if EV_IDLE_ENABLE
1720	void	2228	void
1721	ev_idle_start (EV_P_ ev_idle *w)	2229	ev_idle_start (EV_P_ ev_idle *w)
1722	{	2230	{
1723	if (expect_false (ev_is_active (w)))	2231	if (expect_false (ev_is_active (w)))
1724	return;	2232	return;
1725		2233
		2234	pri_adjust (EV_A_ (W)w);
		2235
		2236	{
		2237	int active = ++idlecnt [ABSPRI (w)];
		2238
		2239	++idleall;
1726	ev_start (EV_A_ (W)w, ++idlecnt);	2240	ev_start (EV_A_ (W)w, active);
		2241
1727	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2242	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1728	idles [idlecnt - 1] = w;	2243	idles [ABSPRI (w)][active - 1] = w;
		2244	}
1729	}	2245	}
1730		2246
1731	void	2247	void
1732	ev_idle_stop (EV_P_ ev_idle *w)	2248	ev_idle_stop (EV_P_ ev_idle *w)
1733	{	2249	{
1734	ev_clear_pending (EV_A_ (W)w);	2250	clear_pending (EV_A_ (W)w);
1735	if (expect_false (!ev_is_active (w)))	2251	if (expect_false (!ev_is_active (w)))
1736	return;	2252	return;
1737		2253
1738	{	2254	{
1739	int active = ((W)w)->active;	2255	int active = ((W)w)->active;
1740	idles [active - 1] = idles [--idlecnt];	2256
		2257	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1741	((W)idles [active - 1])->active = active;	2258	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2259
		2260	ev_stop (EV_A_ (W)w);
		2261	--idleall;
1742	}	2262	}
1743
1744	ev_stop (EV_A_ (W)w);
1745	}	2263	}
		2264	#endif
1746		2265
1747	void	2266	void
1748	ev_prepare_start (EV_P_ ev_prepare *w)	2267	ev_prepare_start (EV_P_ ev_prepare *w)
1749	{	2268	{
1750	if (expect_false (ev_is_active (w)))	2269	if (expect_false (ev_is_active (w)))
…		…
1756	}	2275	}
1757		2276
1758	void	2277	void
1759	ev_prepare_stop (EV_P_ ev_prepare *w)	2278	ev_prepare_stop (EV_P_ ev_prepare *w)
1760	{	2279	{
1761	ev_clear_pending (EV_A_ (W)w);	2280	clear_pending (EV_A_ (W)w);
1762	if (expect_false (!ev_is_active (w)))	2281	if (expect_false (!ev_is_active (w)))
1763	return;	2282	return;
1764		2283
1765	{	2284	{
1766	int active = ((W)w)->active;	2285	int active = ((W)w)->active;
…		…
1783	}	2302	}
1784		2303
1785	void	2304	void
1786	ev_check_stop (EV_P_ ev_check *w)	2305	ev_check_stop (EV_P_ ev_check *w)
1787	{	2306	{
1788	ev_clear_pending (EV_A_ (W)w);	2307	clear_pending (EV_A_ (W)w);
1789	if (expect_false (!ev_is_active (w)))	2308	if (expect_false (!ev_is_active (w)))
1790	return;	2309	return;
1791		2310
1792	{	2311	{
1793	int active = ((W)w)->active;	2312	int active = ((W)w)->active;
…		…
1800		2319
1801	#if EV_EMBED_ENABLE	2320	#if EV_EMBED_ENABLE
1802	void noinline	2321	void noinline
1803	ev_embed_sweep (EV_P_ ev_embed *w)	2322	ev_embed_sweep (EV_P_ ev_embed *w)
1804	{	2323	{
1805	ev_loop (w->loop, EVLOOP_NONBLOCK);	2324	ev_loop (w->other, EVLOOP_NONBLOCK);
1806	}	2325	}
1807		2326
1808	static void	2327	static void
1809	embed_cb (EV_P_ ev_io *io, int revents)	2328	embed_io_cb (EV_P_ ev_io *io, int revents)
1810	{	2329	{
1811	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2330	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1812		2331
1813	if (ev_cb (w))	2332	if (ev_cb (w))
1814	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2333	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1815	else	2334	else
1816	ev_embed_sweep (loop, w);	2335	ev_loop (w->other, EVLOOP_NONBLOCK);
1817	}	2336	}
		2337
		2338	static void
		2339	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2340	{
		2341	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2342
		2343	{
		2344	struct ev_loop *loop = w->other;
		2345
		2346	while (fdchangecnt)
		2347	{
		2348	fd_reify (EV_A);
		2349	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2350	}
		2351	}
		2352	}
		2353
		2354	#if 0
		2355	static void
		2356	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2357	{
		2358	ev_idle_stop (EV_A_ idle);
		2359	}
		2360	#endif
1818		2361
1819	void	2362	void
1820	ev_embed_start (EV_P_ ev_embed *w)	2363	ev_embed_start (EV_P_ ev_embed *w)
1821	{	2364	{
1822	if (expect_false (ev_is_active (w)))	2365	if (expect_false (ev_is_active (w)))
1823	return;	2366	return;
1824		2367
1825	{	2368	{
1826	struct ev_loop *loop = w->loop;	2369	struct ev_loop *loop = w->other;
1827	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2370	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1828	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2371	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1829	}	2372	}
1830		2373
1831	ev_set_priority (&w->io, ev_priority (w));	2374	ev_set_priority (&w->io, ev_priority (w));
1832	ev_io_start (EV_A_ &w->io);	2375	ev_io_start (EV_A_ &w->io);
1833		2376
		2377	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2378	ev_set_priority (&w->prepare, EV_MINPRI);
		2379	ev_prepare_start (EV_A_ &w->prepare);
		2380
		2381	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2382
1834	ev_start (EV_A_ (W)w, 1);	2383	ev_start (EV_A_ (W)w, 1);
1835	}	2384	}
1836		2385
1837	void	2386	void
1838	ev_embed_stop (EV_P_ ev_embed *w)	2387	ev_embed_stop (EV_P_ ev_embed *w)
1839	{	2388	{
1840	ev_clear_pending (EV_A_ (W)w);	2389	clear_pending (EV_A_ (W)w);
1841	if (expect_false (!ev_is_active (w)))	2390	if (expect_false (!ev_is_active (w)))
1842	return;	2391	return;
1843		2392
1844	ev_io_stop (EV_A_ &w->io);	2393	ev_io_stop (EV_A_ &w->io);
		2394	ev_prepare_stop (EV_A_ &w->prepare);
1845		2395
1846	ev_stop (EV_A_ (W)w);	2396	ev_stop (EV_A_ (W)w);
1847	}	2397	}
1848	#endif	2398	#endif
1849		2399
…		…
1860	}	2410	}
1861		2411
1862	void	2412	void
1863	ev_fork_stop (EV_P_ ev_fork *w)	2413	ev_fork_stop (EV_P_ ev_fork *w)
1864	{	2414	{
1865	ev_clear_pending (EV_A_ (W)w);	2415	clear_pending (EV_A_ (W)w);
1866	if (expect_false (!ev_is_active (w)))	2416	if (expect_false (!ev_is_active (w)))
1867	return;	2417	return;
1868		2418
1869	{	2419	{
1870	int active = ((W)w)->active;	2420	int active = ((W)w)->active;
…		…
1874		2424
1875	ev_stop (EV_A_ (W)w);	2425	ev_stop (EV_A_ (W)w);
1876	}	2426	}
1877	#endif	2427	#endif
1878		2428
		2429	#if EV_ASYNC_ENABLE
		2430	void
		2431	ev_async_start (EV_P_ ev_async *w)
		2432	{
		2433	if (expect_false (ev_is_active (w)))
		2434	return;
		2435
		2436	evpipe_init (EV_A);
		2437
		2438	ev_start (EV_A_ (W)w, ++asynccnt);
		2439	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2440	asyncs [asynccnt - 1] = w;
		2441	}
		2442
		2443	void
		2444	ev_async_stop (EV_P_ ev_async *w)
		2445	{
		2446	clear_pending (EV_A_ (W)w);
		2447	if (expect_false (!ev_is_active (w)))
		2448	return;
		2449
		2450	{
		2451	int active = ((W)w)->active;
		2452	asyncs [active - 1] = asyncs [--asynccnt];
		2453	((W)asyncs [active - 1])->active = active;
		2454	}
		2455
		2456	ev_stop (EV_A_ (W)w);
		2457	}
		2458
		2459	void
		2460	ev_async_send (EV_P_ ev_async *w)
		2461	{
		2462	w->sent = 1;
		2463	evpipe_write (EV_A_ 0, 1);
		2464	}
		2465	#endif
		2466
1879	/*****************************************************************************/	2467	/*****************************************************************************/
1880		2468
1881	struct ev_once	2469	struct ev_once
1882	{	2470	{
1883	ev_io io;	2471	ev_io io;
…		…
1938	ev_timer_set (&once->to, timeout, 0.);	2526	ev_timer_set (&once->to, timeout, 0.);
1939	ev_timer_start (EV_A_ &once->to);	2527	ev_timer_start (EV_A_ &once->to);
1940	}	2528	}
1941	}	2529	}
1942		2530
		2531	#if EV_MULTIPLICITY
		2532	#include "ev_wrap.h"
		2533	#endif
		2534
1943	#ifdef __cplusplus	2535	#ifdef __cplusplus
1944	}	2536	}
1945	#endif	2537	#endif
1946		2538

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