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Comparing libev/ev.c (file contents):
Revision 1.139 by root, Sun Nov 25 09:24:37 2007 UTC vs.
Revision 1.204 by root, Fri Jan 18 13:45:55 2008 UTC

…		…
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 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>
…		…
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>
114		138
		139	#ifdef EV_H
		140	# include EV_H
		141	#else
		142	# include "ev.h"
		143	#endif
		144
115	#ifndef _WIN32	145	#ifndef _WIN32
116	# include <unistd.h>
117	# include <sys/time.h>	146	# include <sys/time.h>
118	# include <sys/wait.h>	147	# include <sys/wait.h>
		148	# include <unistd.h>
119	#else	149	#else
120	# define WIN32_LEAN_AND_MEAN	150	# define WIN32_LEAN_AND_MEAN
121	# include <windows.h>	151	# include <windows.h>
122	# ifndef EV_SELECT_IS_WINSOCKET	152	# ifndef EV_SELECT_IS_WINSOCKET
123	# define EV_SELECT_IS_WINSOCKET 1	153	# define EV_SELECT_IS_WINSOCKET 1
…		…
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 static inline	264	# define noinline __attribute__ ((noinline))
193	#else	265	#else
194	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
195	# define inline static	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
196	#endif	271	#endif
197		272
198	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
199	#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
200		282
201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
203		285
204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
205	#define EMPTY2(a,b) /* used to suppress some warnings */	287	#define EMPTY2(a,b) /* used to suppress some warnings */
206		288
207	typedef ev_watcher *W;	289	typedef ev_watcher *W;
208	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
209	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
210		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 */
211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
212		298
213	#ifdef _WIN32	299	#ifdef _WIN32
214	# include "ev_win32.c"	300	# include "ev_win32.c"
215	#endif	301	#endif
216		302
217	/*****************************************************************************/	303	/*****************************************************************************/
218		304
219	static void (*syserr_cb)(const char *msg);	305	static void (*syserr_cb)(const char *msg);
220		306
		307	void
221	void ev_set_syserr_cb (void (*cb)(const char *msg))	308	ev_set_syserr_cb (void (*cb)(const char *msg))
222	{	309	{
223	syserr_cb = cb;	310	syserr_cb = cb;
224	}	311	}
225		312
226	static void	313	static void noinline
227	syserr (const char *msg)	314	syserr (const char *msg)
228	{	315	{
229	if (!msg)	316	if (!msg)
230	msg = "(libev) system error";	317	msg = "(libev) system error";
231		318
…		…
238	}	325	}
239	}	326	}
240		327
241	static void *(*alloc)(void *ptr, long size);	328	static void *(*alloc)(void *ptr, long size);
242		329
		330	void
243	void ev_set_allocator (void *(*cb)(void *ptr, long size))	331	ev_set_allocator (void *(*cb)(void *ptr, long size))
244	{	332	{
245	alloc = cb;	333	alloc = cb;
246	}	334	}
247		335
248	static void *	336	inline_speed void *
249	ev_realloc (void *ptr, long size)	337	ev_realloc (void *ptr, long size)
250	{	338	{
251	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	339	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
252		340
253	if (!ptr && size)	341	if (!ptr && size)
…		…
277	typedef struct	365	typedef struct
278	{	366	{
279	W w;	367	W w;
280	int events;	368	int events;
281	} ANPENDING;	369	} ANPENDING;
		370
		371	#if EV_USE_INOTIFY
		372	typedef struct
		373	{
		374	WL head;
		375	} ANFS;
		376	#endif
282		377
283	#if EV_MULTIPLICITY	378	#if EV_MULTIPLICITY
284		379
285	struct ev_loop	380	struct ev_loop
286	{	381	{
…		…
320	gettimeofday (&tv, 0);	415	gettimeofday (&tv, 0);
321	return tv.tv_sec + tv.tv_usec * 1e-6;	416	return tv.tv_sec + tv.tv_usec * 1e-6;
322	#endif	417	#endif
323	}	418	}
324		419
325	inline ev_tstamp	420	ev_tstamp inline_size
326	get_clock (void)	421	get_clock (void)
327	{	422	{
328	#if EV_USE_MONOTONIC	423	#if EV_USE_MONOTONIC
329	if (expect_true (have_monotonic))	424	if (expect_true (have_monotonic))
330	{	425	{
…		…
343	{	438	{
344	return ev_rt_now;	439	return ev_rt_now;
345	}	440	}
346	#endif	441	#endif
347		442
348	#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	}
349		497
350	#define array_needsize(type,base,cur,cnt,init) \	498	#define array_needsize(type,base,cur,cnt,init) \
351	if (expect_false ((cnt) > cur)) \	499	if (expect_false ((cnt) > (cur))) \
352	{ \	500	{ \
353	int newcnt = cur; \	501	int ocur_ = (cur); \
354	do \	502	(base) = (type *)array_realloc \
355	{ \	503	(sizeof (type), (base), &(cur), (cnt)); \
356	newcnt = array_roundsize (type, newcnt << 1); \	504	init ((base) + (ocur_), (cur) - ocur_); \
357	} \
358	while ((cnt) > newcnt); \
359	\
360	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
361	init (base + cur, newcnt - cur); \
362	cur = newcnt; \
363	}	505	}
364		506
		507	#if 0
365	#define array_slim(type,stem) \	508	#define array_slim(type,stem) \
366	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	509	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
367	{ \	510	{ \
368	stem ## max = array_roundsize (stem ## cnt >> 1); \	511	stem ## max = array_roundsize (stem ## cnt >> 1); \
369	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	512	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	513	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
371	}	514	}
		515	#endif
372		516
373	#define array_free(stem, idx) \	517	#define array_free(stem, idx) \
374	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;
375		519
376	/*****************************************************************************/	520	/*****************************************************************************/
377		521
378	static void	522	void noinline
		523	ev_feed_event (EV_P_ void *w, int revents)
		524	{
		525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
		527
		528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events |= revents;
		530	else
		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_;
		535	pendings [pri][w_->pending - 1].events = revents;
		536	}
		537	}
		538
		539	void inline_speed
		540	queue_events (EV_P_ W *events, int eventcnt, int type)
		541	{
		542	int i;
		543
		544	for (i = 0; i < eventcnt; ++i)
		545	ev_feed_event (EV_A_ events [i], type);
		546	}
		547
		548	/*****************************************************************************/
		549
		550	void inline_size
379	anfds_init (ANFD *base, int count)	551	anfds_init (ANFD *base, int count)
380	{	552	{
381	while (count--)	553	while (count--)
382	{	554	{
383	base->head = 0;	555	base->head = 0;
…		…
386		558
387	++base;	559	++base;
388	}	560	}
389	}	561	}
390		562
391	void	563	void inline_speed
392	ev_feed_event (EV_P_ void *w, int revents)
393	{
394	W w_ = (W)w;
395
396	if (expect_false (w_->pending))
397	{
398	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
399	return;
400	}
401
402	w_->pending = ++pendingcnt [ABSPRI (w_)];
403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
406	}
407
408	static void
409	queue_events (EV_P_ W *events, int eventcnt, int type)
410	{
411	int i;
412
413	for (i = 0; i < eventcnt; ++i)
414	ev_feed_event (EV_A_ events [i], type);
415	}
416
417	inline void
418	fd_event (EV_P_ int fd, int revents)	564	fd_event (EV_P_ int fd, int revents)
419	{	565	{
420	ANFD *anfd = anfds + fd;	566	ANFD *anfd = anfds + fd;
421	ev_io *w;	567	ev_io *w;
422		568
…		…
430	}	576	}
431		577
432	void	578	void
433	ev_feed_fd_event (EV_P_ int fd, int revents)	579	ev_feed_fd_event (EV_P_ int fd, int revents)
434	{	580	{
		581	if (fd >= 0 && fd < anfdmax)
435	fd_event (EV_A_ fd, revents);	582	fd_event (EV_A_ fd, revents);
436	}	583	}
437		584
438	/*****************************************************************************/	585	void inline_size
439
440	inline void
441	fd_reify (EV_P)	586	fd_reify (EV_P)
442	{	587	{
443	int i;	588	int i;
444		589
445	for (i = 0; i < fdchangecnt; ++i)	590	for (i = 0; i < fdchangecnt; ++i)
446	{	591	{
447	int fd = fdchanges [i];	592	int fd = fdchanges [i];
448	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
449	ev_io *w;	594	ev_io *w;
450		595
451	int events = 0;	596	unsigned char events = 0;
452		597
453	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)
454	events |= w->events;	599	events |= (unsigned char)w->events;
455		600
456	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
457	if (events)	602	if (events)
458	{	603	{
459	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
460	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
461	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));
462	}	611	}
463	#endif	612	#endif
464		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
465	anfd->reify = 0;	618	anfd->reify = 0;
466
467	backend_modify (EV_A_ fd, anfd->events, events);
468	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	}
469	}	624	}
470		625
471	fdchangecnt = 0;	626	fdchangecnt = 0;
472	}	627	}
473		628
474	static void	629	void inline_size
475	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
476	{	631	{
477	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
478	return;
479
480	anfds [fd].reify = 1;	633	anfds [fd].reify |= flags;
481		634
		635	if (expect_true (!reify))
		636	{
482	++fdchangecnt;	637	++fdchangecnt;
483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
484	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
485	}	641	}
486		642
487	static void	643	void inline_speed
488	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
489	{	645	{
490	ev_io *w;	646	ev_io *w;
491		647
492	while ((w = (ev_io *)anfds [fd].head))	648	while ((w = (ev_io *)anfds [fd].head))
…		…
494	ev_io_stop (EV_A_ w);	650	ev_io_stop (EV_A_ w);
495	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	651	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
496	}	652	}
497	}	653	}
498		654
499	inline int	655	int inline_size
500	fd_valid (int fd)	656	fd_valid (int fd)
501	{	657	{
502	#ifdef _WIN32	658	#ifdef _WIN32
503	return _get_osfhandle (fd) != -1;	659	return _get_osfhandle (fd) != -1;
504	#else	660	#else
505	return fcntl (fd, F_GETFD) != -1;	661	return fcntl (fd, F_GETFD) != -1;
506	#endif	662	#endif
507	}	663	}
508		664
509	/* called on EBADF to verify fds */	665	/* called on EBADF to verify fds */
510	static void	666	static void noinline
511	fd_ebadf (EV_P)	667	fd_ebadf (EV_P)
512	{	668	{
513	int fd;	669	int fd;
514		670
515	for (fd = 0; fd < anfdmax; ++fd)	671	for (fd = 0; fd < anfdmax; ++fd)
…		…
517	if (!fd_valid (fd) == -1 && errno == EBADF)	673	if (!fd_valid (fd) == -1 && errno == EBADF)
518	fd_kill (EV_A_ fd);	674	fd_kill (EV_A_ fd);
519	}	675	}
520		676
521	/* called on ENOMEM in select/poll to kill some fds and retry */	677	/* called on ENOMEM in select/poll to kill some fds and retry */
522	static void	678	static void noinline
523	fd_enomem (EV_P)	679	fd_enomem (EV_P)
524	{	680	{
525	int fd;	681	int fd;
526		682
527	for (fd = anfdmax; fd--; )	683	for (fd = anfdmax; fd--; )
…		…
531	return;	687	return;
532	}	688	}
533	}	689	}
534		690
535	/* usually called after fork if backend needs to re-arm all fds from scratch */	691	/* usually called after fork if backend needs to re-arm all fds from scratch */
536	static void	692	static void noinline
537	fd_rearm_all (EV_P)	693	fd_rearm_all (EV_P)
538	{	694	{
539	int fd;	695	int fd;
540		696
541	/* this should be highly optimised to not do anything but set a flag */
542	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
543	if (anfds [fd].events)	698	if (anfds [fd].events)
544	{	699	{
545	anfds [fd].events = 0;	700	anfds [fd].events = 0;
546	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET | 1);
547	}	702	}
548	}	703	}
549		704
550	/*****************************************************************************/	705	/*****************************************************************************/
551		706
552	static void	707	void inline_speed
553	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
554	{	709	{
555	WT w = heap [k];	710	WT w = heap [k];
556		711
557	while (k && heap [k >> 1]->at > w->at)	712	while (k)
558	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
559	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
560	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
561	k >>= 1;	721	k = p;
562	}	722	}
563		723
564	heap [k] = w;	724	heap [k] = w;
565	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
566
567	}	726	}
568		727
569	static void	728	void inline_speed
570	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
571	{	730	{
572	WT w = heap [k];	731	WT w = heap [k];
573		732
574	while (k < (N >> 1))	733	for (;;)
575	{	734	{
576	int j = k << 1;	735	int c = (k << 1) + 1;
577		736
578	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
579	++j;
580
581	if (w->at <= heap [j]->at)
582	break;	738	break;
583		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
584	heap [k] = heap [j];	746	heap [k] = heap [c];
585	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
586	k = j;	749	k = c;
587	}	750	}
588		751
589	heap [k] = w;	752	heap [k] = w;
590	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
591	}	754	}
592		755
593	inline void	756	void inline_size
594	adjustheap (WT *heap, int N, int k)	757	adjustheap (WT *heap, int N, int k)
595	{	758	{
596	upheap (heap, k);	759	upheap (heap, k);
597	downheap (heap, N, k);	760	downheap (heap, N, k);
598	}	761	}
…		…
610		773
611	static int sigpipe [2];	774	static int sigpipe [2];
612	static sig_atomic_t volatile gotsig;	775	static sig_atomic_t volatile gotsig;
613	static ev_io sigev;	776	static ev_io sigev;
614		777
615	static void	778	void inline_size
616	signals_init (ANSIG *base, int count)	779	signals_init (ANSIG *base, int count)
617	{	780	{
618	while (count--)	781	while (count--)
619	{	782	{
620	base->head = 0;	783	base->head = 0;
…		…
640	write (sigpipe [1], &signum, 1);	803	write (sigpipe [1], &signum, 1);
641	errno = old_errno;	804	errno = old_errno;
642	}	805	}
643	}	806	}
644		807
645	void	808	void noinline
646	ev_feed_signal_event (EV_P_ int signum)	809	ev_feed_signal_event (EV_P_ int signum)
647	{	810	{
648	WL w;	811	WL w;
649		812
650	#if EV_MULTIPLICITY	813	#if EV_MULTIPLICITY
…		…
673	for (signum = signalmax; signum--; )	836	for (signum = signalmax; signum--; )
674	if (signals [signum].gotsig)	837	if (signals [signum].gotsig)
675	ev_feed_signal_event (EV_A_ signum + 1);	838	ev_feed_signal_event (EV_A_ signum + 1);
676	}	839	}
677		840
678	static void	841	void inline_speed
679	fd_intern (int fd)	842	fd_intern (int fd)
680	{	843	{
681	#ifdef _WIN32	844	#ifdef _WIN32
682	int arg = 1;	845	int arg = 1;
683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	846	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
685	fcntl (fd, F_SETFD, FD_CLOEXEC);	848	fcntl (fd, F_SETFD, FD_CLOEXEC);
686	fcntl (fd, F_SETFL, O_NONBLOCK);	849	fcntl (fd, F_SETFL, O_NONBLOCK);
687	#endif	850	#endif
688	}	851	}
689		852
690	static void	853	static void noinline
691	siginit (EV_P)	854	siginit (EV_P)
692	{	855	{
693	fd_intern (sigpipe [0]);	856	fd_intern (sigpipe [0]);
694	fd_intern (sigpipe [1]);	857	fd_intern (sigpipe [1]);
695		858
…		…
698	ev_unref (EV_A); /* child watcher should not keep loop alive */	861	ev_unref (EV_A); /* child watcher should not keep loop alive */
699	}	862	}
700		863
701	/*****************************************************************************/	864	/*****************************************************************************/
702		865
703	static ev_child *childs [PID_HASHSIZE];	866	static WL childs [EV_PID_HASHSIZE];
704		867
705	#ifndef _WIN32	868	#ifndef _WIN32
706		869
707	static ev_signal childev;	870	static ev_signal childev;
		871
		872	void inline_speed
		873	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		874	{
		875	ev_child *w;
		876
		877	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		878	if (w->pid == pid || !w->pid)
		879	{
		880	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		881	w->rpid = pid;
		882	w->rstatus = status;
		883	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		884	}
		885	}
708		886
709	#ifndef WCONTINUED	887	#ifndef WCONTINUED
710	# define WCONTINUED 0	888	# define WCONTINUED 0
711	#endif	889	#endif
712		890
713	static void	891	static void
714	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
715	{
716	ev_child *w;
717
718	for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
719	if (w->pid == pid || !w->pid)
720	{
721	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
722	w->rpid = pid;
723	w->rstatus = status;
724	ev_feed_event (EV_A_ (W)w, EV_CHILD);
725	}
726	}
727
728	static void
729	childcb (EV_P_ ev_signal *sw, int revents)	892	childcb (EV_P_ ev_signal *sw, int revents)
730	{	893	{
731	int pid, status;	894	int pid, status;
732		895
		896	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
733	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	897	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
734	{	898	if (!WCONTINUED
		899	|| errno != EINVAL
		900	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		901	return;
		902
735	/* make sure we are called again until all childs have been reaped */	903	/* make sure we are called again until all childs have been reaped */
736	/* we need to do it this way so that the callback gets called before we continue */	904	/* we need to do it this way so that the callback gets called before we continue */
737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	905	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
738		906
739	child_reap (EV_A_ sw, pid, pid, status);	907	child_reap (EV_A_ sw, pid, pid, status);
		908	if (EV_PID_HASHSIZE > 1)
740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	909	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
741	}
742	}	910	}
743		911
744	#endif	912	#endif
745		913
746	/*****************************************************************************/	914	/*****************************************************************************/
…		…
772	{	940	{
773	return EV_VERSION_MINOR;	941	return EV_VERSION_MINOR;
774	}	942	}
775		943
776	/* return true if we are running with elevated privileges and should ignore env variables */	944	/* return true if we are running with elevated privileges and should ignore env variables */
777	static int	945	int inline_size
778	enable_secure (void)	946	enable_secure (void)
779	{	947	{
780	#ifdef _WIN32	948	#ifdef _WIN32
781	return 0;	949	return 0;
782	#else	950	#else
…		…
818	}	986	}
819		987
820	unsigned int	988	unsigned int
821	ev_embeddable_backends (void)	989	ev_embeddable_backends (void)
822	{	990	{
823	return EVBACKEND_EPOLL	991	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
824	| EVBACKEND_KQUEUE	992
825	| EVBACKEND_PORT;	993	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		994	/* please fix it and tell me how to detect the fix */
		995	flags &= ~EVBACKEND_EPOLL;
		996
		997	return flags;
826	}	998	}
827		999
828	unsigned int	1000	unsigned int
829	ev_backend (EV_P)	1001	ev_backend (EV_P)
830	{	1002	{
831	return backend;	1003	return backend;
832	}	1004	}
833		1005
834	static void	1006	unsigned int
		1007	ev_loop_count (EV_P)
		1008	{
		1009	return loop_count;
		1010	}
		1011
		1012	void
		1013	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1014	{
		1015	io_blocktime = interval;
		1016	}
		1017
		1018	void
		1019	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1020	{
		1021	timeout_blocktime = interval;
		1022	}
		1023
		1024	static void noinline
835	loop_init (EV_P_ unsigned int flags)	1025	loop_init (EV_P_ unsigned int flags)
836	{	1026	{
837	if (!backend)	1027	if (!backend)
838	{	1028	{
839	#if EV_USE_MONOTONIC	1029	#if EV_USE_MONOTONIC
…		…
847	ev_rt_now = ev_time ();	1037	ev_rt_now = ev_time ();
848	mn_now = get_clock ();	1038	mn_now = get_clock ();
849	now_floor = mn_now;	1039	now_floor = mn_now;
850	rtmn_diff = ev_rt_now - mn_now;	1040	rtmn_diff = ev_rt_now - mn_now;
851		1041
		1042	io_blocktime = 0.;
		1043	timeout_blocktime = 0.;
		1044
		1045	/* pid check not overridable via env */
		1046	#ifndef _WIN32
		1047	if (flags & EVFLAG_FORKCHECK)
		1048	curpid = getpid ();
		1049	#endif
		1050
852	if (!(flags & EVFLAG_NOENV)	1051	if (!(flags & EVFLAG_NOENV)
853	&& !enable_secure ()	1052	&& !enable_secure ()
854	&& getenv ("LIBEV_FLAGS"))	1053	&& getenv ("LIBEV_FLAGS"))
855	flags = atoi (getenv ("LIBEV_FLAGS"));	1054	flags = atoi (getenv ("LIBEV_FLAGS"));
856		1055
857	if (!(flags & 0x0000ffffUL))	1056	if (!(flags & 0x0000ffffUL))
858	flags |= ev_recommended_backends ();	1057	flags |= ev_recommended_backends ();
859		1058
860	backend = 0;	1059	backend = 0;
		1060	backend_fd = -1;
		1061	#if EV_USE_INOTIFY
		1062	fs_fd = -2;
		1063	#endif
		1064
861	#if EV_USE_PORT	1065	#if EV_USE_PORT
862	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1066	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
863	#endif	1067	#endif
864	#if EV_USE_KQUEUE	1068	#if EV_USE_KQUEUE
865	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1069	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
877	ev_init (&sigev, sigcb);	1081	ev_init (&sigev, sigcb);
878	ev_set_priority (&sigev, EV_MAXPRI);	1082	ev_set_priority (&sigev, EV_MAXPRI);
879	}	1083	}
880	}	1084	}
881		1085
882	static void	1086	static void noinline
883	loop_destroy (EV_P)	1087	loop_destroy (EV_P)
884	{	1088	{
885	int i;	1089	int i;
		1090
		1091	#if EV_USE_INOTIFY
		1092	if (fs_fd >= 0)
		1093	close (fs_fd);
		1094	#endif
		1095
		1096	if (backend_fd >= 0)
		1097	close (backend_fd);
886		1098
887	#if EV_USE_PORT	1099	#if EV_USE_PORT
888	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1100	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
889	#endif	1101	#endif
890	#if EV_USE_KQUEUE	1102	#if EV_USE_KQUEUE
…		…
899	#if EV_USE_SELECT	1111	#if EV_USE_SELECT
900	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1112	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
901	#endif	1113	#endif
902		1114
903	for (i = NUMPRI; i--; )	1115	for (i = NUMPRI; i--; )
		1116	{
904	array_free (pending, [i]);	1117	array_free (pending, [i]);
		1118	#if EV_IDLE_ENABLE
		1119	array_free (idle, [i]);
		1120	#endif
		1121	}
		1122
		1123	ev_free (anfds); anfdmax = 0;
905		1124
906	/* have to use the microsoft-never-gets-it-right macro */	1125	/* have to use the microsoft-never-gets-it-right macro */
907	array_free (fdchange, EMPTY0);	1126	array_free (fdchange, EMPTY);
908	array_free (timer, EMPTY0);	1127	array_free (timer, EMPTY);
909	#if EV_PERIODICS	1128	#if EV_PERIODIC_ENABLE
910	array_free (periodic, EMPTY0);	1129	array_free (periodic, EMPTY);
911	#endif	1130	#endif
		1131	#if EV_FORK_ENABLE
912	array_free (idle, EMPTY0);	1132	array_free (fork, EMPTY);
		1133	#endif
913	array_free (prepare, EMPTY0);	1134	array_free (prepare, EMPTY);
914	array_free (check, EMPTY0);	1135	array_free (check, EMPTY);
915		1136
916	backend = 0;	1137	backend = 0;
917	}	1138	}
918		1139
919	static void	1140	void inline_size infy_fork (EV_P);
		1141
		1142	void inline_size
920	loop_fork (EV_P)	1143	loop_fork (EV_P)
921	{	1144	{
922	#if EV_USE_PORT	1145	#if EV_USE_PORT
923	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1146	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
924	#endif	1147	#endif
925	#if EV_USE_KQUEUE	1148	#if EV_USE_KQUEUE
926	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1149	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
927	#endif	1150	#endif
928	#if EV_USE_EPOLL	1151	#if EV_USE_EPOLL
929	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1152	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1153	#endif
		1154	#if EV_USE_INOTIFY
		1155	infy_fork (EV_A);
930	#endif	1156	#endif
931		1157
932	if (ev_is_active (&sigev))	1158	if (ev_is_active (&sigev))
933	{	1159	{
934	/* default loop */	1160	/* default loop */
…		…
940		1166
941	while (pipe (sigpipe))	1167	while (pipe (sigpipe))
942	syserr ("(libev) error creating pipe");	1168	syserr ("(libev) error creating pipe");
943		1169
944	siginit (EV_A);	1170	siginit (EV_A);
		1171	sigcb (EV_A_ &sigev, EV_READ);
945	}	1172	}
946		1173
947	postfork = 0;	1174	postfork = 0;
948	}	1175	}
949		1176
…		…
971	}	1198	}
972		1199
973	void	1200	void
974	ev_loop_fork (EV_P)	1201	ev_loop_fork (EV_P)
975	{	1202	{
976	postfork = 1;	1203	postfork = 1; // must be in line with ev_default_fork
977	}	1204	}
978		1205
979	#endif	1206	#endif
980		1207
981	#if EV_MULTIPLICITY	1208	#if EV_MULTIPLICITY
…		…
1045	#if EV_MULTIPLICITY	1272	#if EV_MULTIPLICITY
1046	struct ev_loop *loop = ev_default_loop_ptr;	1273	struct ev_loop *loop = ev_default_loop_ptr;
1047	#endif	1274	#endif
1048		1275
1049	if (backend)	1276	if (backend)
1050	postfork = 1;	1277	postfork = 1; // must be in line with ev_loop_fork
1051	}	1278	}
1052		1279
1053	/*****************************************************************************/	1280	/*****************************************************************************/
1054		1281
1055	static int	1282	void
1056	any_pending (EV_P)	1283	ev_invoke (EV_P_ void *w, int revents)
1057	{	1284	{
1058	int pri;	1285	EV_CB_INVOKE ((W)w, revents);
1059
1060	for (pri = NUMPRI; pri--; )
1061	if (pendingcnt [pri])
1062	return 1;
1063
1064	return 0;
1065	}	1286	}
1066		1287
1067	inline void	1288	void inline_speed
1068	call_pending (EV_P)	1289	call_pending (EV_P)
1069	{	1290	{
1070	int pri;	1291	int pri;
1071		1292
1072	for (pri = NUMPRI; pri--; )	1293	for (pri = NUMPRI; pri--; )
…		…
1074	{	1295	{
1075	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1296	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1076		1297
1077	if (expect_true (p->w))	1298	if (expect_true (p->w))
1078	{	1299	{
1079	assert (("non-pending watcher on pending list", p->w->pending));	1300	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1080		1301
1081	p->w->pending = 0;	1302	p->w->pending = 0;
1082	EV_CB_INVOKE (p->w, p->events);	1303	EV_CB_INVOKE (p->w, p->events);
1083	}	1304	}
1084	}	1305	}
1085	}	1306	}
1086		1307
1087	inline void	1308	void inline_size
1088	timers_reify (EV_P)	1309	timers_reify (EV_P)
1089	{	1310	{
1090	while (timercnt && ((WT)timers [0])->at <= mn_now)	1311	while (timercnt && ((WT)timers [0])->at <= mn_now)
1091	{	1312	{
1092	ev_timer *w = timers [0];	1313	ev_timer *w = (ev_timer *)timers [0];
1093		1314
1094	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1315	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1095		1316
1096	/* first reschedule or stop timer */	1317	/* first reschedule or stop timer */
1097	if (w->repeat)	1318	if (w->repeat)
1098	{	1319	{
1099	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1320	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1100		1321
1101	((WT)w)->at += w->repeat;	1322	((WT)w)->at += w->repeat;
1102	if (((WT)w)->at < mn_now)	1323	if (((WT)w)->at < mn_now)
1103	((WT)w)->at = mn_now;	1324	((WT)w)->at = mn_now;
1104		1325
1105	downheap ((WT *)timers, timercnt, 0);	1326	downheap (timers, timercnt, 0);
1106	}	1327	}
1107	else	1328	else
1108	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1329	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1109		1330
1110	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1331	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1111	}	1332	}
1112	}	1333	}
1113		1334
1114	#if EV_PERIODICS	1335	#if EV_PERIODIC_ENABLE
1115	inline void	1336	void inline_size
1116	periodics_reify (EV_P)	1337	periodics_reify (EV_P)
1117	{	1338	{
1118	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1339	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1119	{	1340	{
1120	ev_periodic *w = periodics [0];	1341	ev_periodic *w = (ev_periodic *)periodics [0];
1121		1342
1122	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1343	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1123		1344
1124	/* first reschedule or stop timer */	1345	/* first reschedule or stop timer */
1125	if (w->reschedule_cb)	1346	if (w->reschedule_cb)
1126	{	1347	{
1127	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1348	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1128	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1349	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1129	downheap ((WT *)periodics, periodiccnt, 0);	1350	downheap (periodics, periodiccnt, 0);
1130	}	1351	}
1131	else if (w->interval)	1352	else if (w->interval)
1132	{	1353	{
1133	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1354	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1355	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1134	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1356	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1135	downheap ((WT *)periodics, periodiccnt, 0);	1357	downheap (periodics, periodiccnt, 0);
1136	}	1358	}
1137	else	1359	else
1138	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1360	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1139		1361
1140	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1362	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1141	}	1363	}
1142	}	1364	}
1143		1365
1144	static void	1366	static void noinline
1145	periodics_reschedule (EV_P)	1367	periodics_reschedule (EV_P)
1146	{	1368	{
1147	int i;	1369	int i;
1148		1370
1149	/* adjust periodics after time jump */	1371	/* adjust periodics after time jump */
1150	for (i = 0; i < periodiccnt; ++i)	1372	for (i = 0; i < periodiccnt; ++i)
1151	{	1373	{
1152	ev_periodic *w = periodics [i];	1374	ev_periodic *w = (ev_periodic *)periodics [i];
1153		1375
1154	if (w->reschedule_cb)	1376	if (w->reschedule_cb)
1155	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1377	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1156	else if (w->interval)	1378	else if (w->interval)
1157	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1379	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1158	}	1380	}
1159		1381
1160	/* now rebuild the heap */	1382	/* now rebuild the heap */
1161	for (i = periodiccnt >> 1; i--; )	1383	for (i = periodiccnt >> 1; i--; )
1162	downheap ((WT *)periodics, periodiccnt, i);	1384	downheap (periodics, periodiccnt, i);
1163	}	1385	}
1164	#endif	1386	#endif
1165		1387
1166	inline int	1388	#if EV_IDLE_ENABLE
1167	time_update_monotonic (EV_P)	1389	void inline_size
		1390	idle_reify (EV_P)
1168	{	1391	{
		1392	if (expect_false (idleall))
		1393	{
		1394	int pri;
		1395
		1396	for (pri = NUMPRI; pri--; )
		1397	{
		1398	if (pendingcnt [pri])
		1399	break;
		1400
		1401	if (idlecnt [pri])
		1402	{
		1403	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1404	break;
		1405	}
		1406	}
		1407	}
		1408	}
		1409	#endif
		1410
		1411	void inline_speed
		1412	time_update (EV_P_ ev_tstamp max_block)
		1413	{
		1414	int i;
		1415
		1416	#if EV_USE_MONOTONIC
		1417	if (expect_true (have_monotonic))
		1418	{
		1419	ev_tstamp odiff = rtmn_diff;
		1420
1169	mn_now = get_clock ();	1421	mn_now = get_clock ();
1170		1422
		1423	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1424	/* interpolate in the meantime */
1171	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1425	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1172	{	1426	{
1173	ev_rt_now = rtmn_diff + mn_now;	1427	ev_rt_now = rtmn_diff + mn_now;
1174	return 0;	1428	return;
1175	}	1429	}
1176	else	1430
1177	{
1178	now_floor = mn_now;	1431	now_floor = mn_now;
1179	ev_rt_now = ev_time ();	1432	ev_rt_now = ev_time ();
1180	return 1;
1181	}
1182	}
1183		1433
1184	inline void	1434	/* loop a few times, before making important decisions.
1185	time_update (EV_P)	1435	* on the choice of "4": one iteration isn't enough,
1186	{	1436	* in case we get preempted during the calls to
1187	int i;	1437	* ev_time and get_clock. a second call is almost guaranteed
1188		1438	* to succeed in that case, though. and looping a few more times
1189	#if EV_USE_MONOTONIC	1439	* doesn't hurt either as we only do this on time-jumps or
1190	if (expect_true (have_monotonic))	1440	* in the unlikely event of having been preempted here.
1191	{	1441	*/
1192	if (time_update_monotonic (EV_A))	1442	for (i = 4; --i; )
1193	{	1443	{
1194	ev_tstamp odiff = rtmn_diff;
1195
1196	/* loop a few times, before making important decisions.
1197	* on the choice of "4": one iteration isn't enough,
1198	* in case we get preempted during the calls to
1199	* ev_time and get_clock. a second call is almost guarenteed
1200	* to succeed in that case, though. and looping a few more times
1201	* doesn't hurt either as we only do this on time-jumps or
1202	* in the unlikely event of getting preempted here.
1203	*/
1204	for (i = 4; --i; )
1205	{
1206	rtmn_diff = ev_rt_now - mn_now;	1444	rtmn_diff = ev_rt_now - mn_now;
1207		1445
1208	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1446	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1209	return; /* all is well */	1447	return; /* all is well */
1210		1448
1211	ev_rt_now = ev_time ();	1449	ev_rt_now = ev_time ();
1212	mn_now = get_clock ();	1450	mn_now = get_clock ();
1213	now_floor = mn_now;	1451	now_floor = mn_now;
1214	}	1452	}
1215		1453
1216	# if EV_PERIODICS	1454	# if EV_PERIODIC_ENABLE
		1455	periodics_reschedule (EV_A);
		1456	# endif
		1457	/* no timer adjustment, as the monotonic clock doesn't jump */
		1458	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
		1459	}
		1460	else
		1461	#endif
		1462	{
		1463	ev_rt_now = ev_time ();
		1464
		1465	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
		1466	{
		1467	#if EV_PERIODIC_ENABLE
1217	periodics_reschedule (EV_A);	1468	periodics_reschedule (EV_A);
1218	# endif	1469	#endif
1219	/* no timer adjustment, as the monotonic clock doesn't jump */
1220	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1221	}
1222	}
1223	else
1224	#endif
1225	{
1226	ev_rt_now = ev_time ();
1227
1228	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1229	{
1230	#if EV_PERIODICS
1231	periodics_reschedule (EV_A);
1232	#endif
1233
1234	/* adjust timers. this is easy, as the offset is the same for all */	1470	/* adjust timers. this is easy, as the offset is the same for all of them */
1235	for (i = 0; i < timercnt; ++i)	1471	for (i = 0; i < timercnt; ++i)
1236	((WT)timers [i])->at += ev_rt_now - mn_now;	1472	((WT)timers [i])->at += ev_rt_now - mn_now;
1237	}	1473	}
1238		1474
1239	mn_now = ev_rt_now;	1475	mn_now = ev_rt_now;
…		…
1259	{	1495	{
1260	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1496	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1261	? EVUNLOOP_ONE	1497	? EVUNLOOP_ONE
1262	: EVUNLOOP_CANCEL;	1498	: EVUNLOOP_CANCEL;
1263		1499
1264	while (activecnt)	1500	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1501
		1502	do
1265	{	1503	{
		1504	#ifndef _WIN32
		1505	if (expect_false (curpid)) /* penalise the forking check even more */
		1506	if (expect_false (getpid () != curpid))
		1507	{
		1508	curpid = getpid ();
		1509	postfork = 1;
		1510	}
		1511	#endif
		1512
		1513	#if EV_FORK_ENABLE
		1514	/* we might have forked, so queue fork handlers */
		1515	if (expect_false (postfork))
		1516	if (forkcnt)
		1517	{
		1518	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1519	call_pending (EV_A);
		1520	}
		1521	#endif
		1522
1266	/* queue check watchers (and execute them) */	1523	/* queue prepare watchers (and execute them) */
1267	if (expect_false (preparecnt))	1524	if (expect_false (preparecnt))
1268	{	1525	{
1269	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1526	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1270	call_pending (EV_A);	1527	call_pending (EV_A);
1271	}	1528	}
1272		1529
		1530	if (expect_false (!activecnt))
		1531	break;
		1532
1273	/* we might have forked, so reify kernel state if necessary */	1533	/* we might have forked, so reify kernel state if necessary */
1274	if (expect_false (postfork))	1534	if (expect_false (postfork))
1275	loop_fork (EV_A);	1535	loop_fork (EV_A);
1276		1536
1277	/* update fd-related kernel structures */	1537	/* update fd-related kernel structures */
1278	fd_reify (EV_A);	1538	fd_reify (EV_A);
1279		1539
1280	/* calculate blocking time */	1540	/* calculate blocking time */
1281	{	1541	{
1282	double block;	1542	ev_tstamp waittime = 0.;
		1543	ev_tstamp sleeptime = 0.;
1283		1544
1284	if (flags & EVLOOP_NONBLOCK || idlecnt)	1545	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1285	block = 0.; /* do not block at all */
1286	else
1287	{	1546	{
1288	/* update time to cancel out callback processing overhead */	1547	/* update time to cancel out callback processing overhead */
1289	#if EV_USE_MONOTONIC
1290	if (expect_true (have_monotonic))
1291	time_update_monotonic (EV_A);	1548	time_update (EV_A_ 1e100);
1292	else
1293	#endif
1294	{
1295	ev_rt_now = ev_time ();
1296	mn_now = ev_rt_now;
1297	}
1298		1549
1299	block = MAX_BLOCKTIME;	1550	waittime = MAX_BLOCKTIME;
1300		1551
1301	if (timercnt)	1552	if (timercnt)
1302	{	1553	{
1303	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1554	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1304	if (block > to) block = to;	1555	if (waittime > to) waittime = to;
1305	}	1556	}
1306		1557
1307	#if EV_PERIODICS	1558	#if EV_PERIODIC_ENABLE
1308	if (periodiccnt)	1559	if (periodiccnt)
1309	{	1560	{
1310	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1561	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1311	if (block > to) block = to;	1562	if (waittime > to) waittime = to;
1312	}	1563	}
1313	#endif	1564	#endif
1314		1565
1315	if (expect_false (block < 0.)) block = 0.;	1566	if (expect_false (waittime < timeout_blocktime))
		1567	waittime = timeout_blocktime;
		1568
		1569	sleeptime = waittime - backend_fudge;
		1570
		1571	if (expect_true (sleeptime > io_blocktime))
		1572	sleeptime = io_blocktime;
		1573
		1574	if (sleeptime)
		1575	{
		1576	ev_sleep (sleeptime);
		1577	waittime -= sleeptime;
		1578	}
1316	}	1579	}
1317		1580
		1581	++loop_count;
1318	backend_poll (EV_A_ block);	1582	backend_poll (EV_A_ waittime);
		1583
		1584	/* update ev_rt_now, do magic */
		1585	time_update (EV_A_ waittime + sleeptime);
1319	}	1586	}
1320
1321	/* update ev_rt_now, do magic */
1322	time_update (EV_A);
1323		1587
1324	/* queue pending timers and reschedule them */	1588	/* queue pending timers and reschedule them */
1325	timers_reify (EV_A); /* relative timers called last */	1589	timers_reify (EV_A); /* relative timers called last */
1326	#if EV_PERIODICS	1590	#if EV_PERIODIC_ENABLE
1327	periodics_reify (EV_A); /* absolute timers called first */	1591	periodics_reify (EV_A); /* absolute timers called first */
1328	#endif	1592	#endif
1329		1593
		1594	#if EV_IDLE_ENABLE
1330	/* queue idle watchers unless other events are pending */	1595	/* queue idle watchers unless other events are pending */
1331	if (idlecnt && !any_pending (EV_A))	1596	idle_reify (EV_A);
1332	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1597	#endif
1333		1598
1334	/* queue check watchers, to be executed first */	1599	/* queue check watchers, to be executed first */
1335	if (expect_false (checkcnt))	1600	if (expect_false (checkcnt))
1336	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1601	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1337		1602
1338	call_pending (EV_A);	1603	call_pending (EV_A);
1339		1604
1340	if (expect_false (loop_done))
1341	break;
1342	}	1605	}
		1606	while (expect_true (activecnt && !loop_done));
1343		1607
1344	if (loop_done == EVUNLOOP_ONE)	1608	if (loop_done == EVUNLOOP_ONE)
1345	loop_done = EVUNLOOP_CANCEL;	1609	loop_done = EVUNLOOP_CANCEL;
1346	}	1610	}
1347		1611
…		…
1351	loop_done = how;	1615	loop_done = how;
1352	}	1616	}
1353		1617
1354	/*****************************************************************************/	1618	/*****************************************************************************/
1355		1619
1356	inline void	1620	void inline_size
1357	wlist_add (WL *head, WL elem)	1621	wlist_add (WL *head, WL elem)
1358	{	1622	{
1359	elem->next = *head;	1623	elem->next = *head;
1360	*head = elem;	1624	*head = elem;
1361	}	1625	}
1362		1626
1363	inline void	1627	void inline_size
1364	wlist_del (WL *head, WL elem)	1628	wlist_del (WL *head, WL elem)
1365	{	1629	{
1366	while (*head)	1630	while (*head)
1367	{	1631	{
1368	if (*head == elem)	1632	if (*head == elem)
…		…
1373		1637
1374	head = &(*head)->next;	1638	head = &(*head)->next;
1375	}	1639	}
1376	}	1640	}
1377		1641
1378	inline void	1642	void inline_speed
1379	ev_clear_pending (EV_P_ W w)	1643	clear_pending (EV_P_ W w)
1380	{	1644	{
1381	if (w->pending)	1645	if (w->pending)
1382	{	1646	{
1383	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1647	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1384	w->pending = 0;	1648	w->pending = 0;
1385	}	1649	}
1386	}	1650	}
1387		1651
1388	inline void	1652	int
		1653	ev_clear_pending (EV_P_ void *w)
		1654	{
		1655	W w_ = (W)w;
		1656	int pending = w_->pending;
		1657
		1658	if (expect_true (pending))
		1659	{
		1660	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1661	w_->pending = 0;
		1662	p->w = 0;
		1663	return p->events;
		1664	}
		1665	else
		1666	return 0;
		1667	}
		1668
		1669	void inline_size
		1670	pri_adjust (EV_P_ W w)
		1671	{
		1672	int pri = w->priority;
		1673	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1674	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1675	w->priority = pri;
		1676	}
		1677
		1678	void inline_speed
1389	ev_start (EV_P_ W w, int active)	1679	ev_start (EV_P_ W w, int active)
1390	{	1680	{
1391	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1681	pri_adjust (EV_A_ w);
1392	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1393
1394	w->active = active;	1682	w->active = active;
1395	ev_ref (EV_A);	1683	ev_ref (EV_A);
1396	}	1684	}
1397		1685
1398	inline void	1686	void inline_size
1399	ev_stop (EV_P_ W w)	1687	ev_stop (EV_P_ W w)
1400	{	1688	{
1401	ev_unref (EV_A);	1689	ev_unref (EV_A);
1402	w->active = 0;	1690	w->active = 0;
1403	}	1691	}
1404		1692
1405	/*****************************************************************************/	1693	/*****************************************************************************/
1406		1694
1407	void	1695	void noinline
1408	ev_io_start (EV_P_ ev_io *w)	1696	ev_io_start (EV_P_ ev_io *w)
1409	{	1697	{
1410	int fd = w->fd;	1698	int fd = w->fd;
1411		1699
1412	if (expect_false (ev_is_active (w)))	1700	if (expect_false (ev_is_active (w)))
…		…
1414		1702
1415	assert (("ev_io_start called with negative fd", fd >= 0));	1703	assert (("ev_io_start called with negative fd", fd >= 0));
1416		1704
1417	ev_start (EV_A_ (W)w, 1);	1705	ev_start (EV_A_ (W)w, 1);
1418	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1706	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1419	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1707	wlist_add (&anfds[fd].head, (WL)w);
1420		1708
1421	fd_change (EV_A_ fd);	1709	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1710	w->events &= ~EV_IOFDSET;
1422	}	1711	}
1423		1712
1424	void	1713	void noinline
1425	ev_io_stop (EV_P_ ev_io *w)	1714	ev_io_stop (EV_P_ ev_io *w)
1426	{	1715	{
1427	ev_clear_pending (EV_A_ (W)w);	1716	clear_pending (EV_A_ (W)w);
1428	if (expect_false (!ev_is_active (w)))	1717	if (expect_false (!ev_is_active (w)))
1429	return;	1718	return;
1430		1719
1431	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1720	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1432		1721
1433	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1722	wlist_del (&anfds[w->fd].head, (WL)w);
1434	ev_stop (EV_A_ (W)w);	1723	ev_stop (EV_A_ (W)w);
1435		1724
1436	fd_change (EV_A_ w->fd);	1725	fd_change (EV_A_ w->fd, 1);
1437	}	1726	}
1438		1727
1439	void	1728	void noinline
1440	ev_timer_start (EV_P_ ev_timer *w)	1729	ev_timer_start (EV_P_ ev_timer *w)
1441	{	1730	{
1442	if (expect_false (ev_is_active (w)))	1731	if (expect_false (ev_is_active (w)))
1443	return;	1732	return;
1444		1733
1445	((WT)w)->at += mn_now;	1734	((WT)w)->at += mn_now;
1446		1735
1447	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1736	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1448		1737
1449	ev_start (EV_A_ (W)w, ++timercnt);	1738	ev_start (EV_A_ (W)w, ++timercnt);
1450	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1739	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1451	timers [timercnt - 1] = w;	1740	timers [timercnt - 1] = (WT)w;
1452	upheap ((WT *)timers, timercnt - 1);	1741	upheap (timers, timercnt - 1);
1453		1742
1454	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1743	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1455	}	1744	}
1456		1745
1457	void	1746	void noinline
1458	ev_timer_stop (EV_P_ ev_timer *w)	1747	ev_timer_stop (EV_P_ ev_timer *w)
1459	{	1748	{
1460	ev_clear_pending (EV_A_ (W)w);	1749	clear_pending (EV_A_ (W)w);
1461	if (expect_false (!ev_is_active (w)))	1750	if (expect_false (!ev_is_active (w)))
1462	return;	1751	return;
1463		1752
1464	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1753	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1465		1754
		1755	{
		1756	int active = ((W)w)->active;
		1757
1466	if (expect_true (((W)w)->active < timercnt--))	1758	if (expect_true (--active < --timercnt))
1467	{	1759	{
1468	timers [((W)w)->active - 1] = timers [timercnt];	1760	timers [active] = timers [timercnt];
1469	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1761	adjustheap (timers, timercnt, active);
1470	}	1762	}
		1763	}
1471		1764
1472	((WT)w)->at -= mn_now;	1765	((WT)w)->at -= mn_now;
1473		1766
1474	ev_stop (EV_A_ (W)w);	1767	ev_stop (EV_A_ (W)w);
1475	}	1768	}
1476		1769
1477	void	1770	void noinline
1478	ev_timer_again (EV_P_ ev_timer *w)	1771	ev_timer_again (EV_P_ ev_timer *w)
1479	{	1772	{
1480	if (ev_is_active (w))	1773	if (ev_is_active (w))
1481	{	1774	{
1482	if (w->repeat)	1775	if (w->repeat)
1483	{	1776	{
1484	((WT)w)->at = mn_now + w->repeat;	1777	((WT)w)->at = mn_now + w->repeat;
1485	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1778	adjustheap (timers, timercnt, ((W)w)->active - 1);
1486	}	1779	}
1487	else	1780	else
1488	ev_timer_stop (EV_A_ w);	1781	ev_timer_stop (EV_A_ w);
1489	}	1782	}
1490	else if (w->repeat)	1783	else if (w->repeat)
…		…
1492	w->at = w->repeat;	1785	w->at = w->repeat;
1493	ev_timer_start (EV_A_ w);	1786	ev_timer_start (EV_A_ w);
1494	}	1787	}
1495	}	1788	}
1496		1789
1497	#if EV_PERIODICS	1790	#if EV_PERIODIC_ENABLE
1498	void	1791	void noinline
1499	ev_periodic_start (EV_P_ ev_periodic *w)	1792	ev_periodic_start (EV_P_ ev_periodic *w)
1500	{	1793	{
1501	if (expect_false (ev_is_active (w)))	1794	if (expect_false (ev_is_active (w)))
1502	return;	1795	return;
1503		1796
…		…
1505	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1798	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1506	else if (w->interval)	1799	else if (w->interval)
1507	{	1800	{
1508	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1801	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1509	/* this formula differs from the one in periodic_reify because we do not always round up */	1802	/* this formula differs from the one in periodic_reify because we do not always round up */
1510	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1803	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1511	}	1804	}
		1805	else
		1806	((WT)w)->at = w->offset;
1512		1807
1513	ev_start (EV_A_ (W)w, ++periodiccnt);	1808	ev_start (EV_A_ (W)w, ++periodiccnt);
1514	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1809	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1515	periodics [periodiccnt - 1] = w;	1810	periodics [periodiccnt - 1] = (WT)w;
1516	upheap ((WT *)periodics, periodiccnt - 1);	1811	upheap (periodics, periodiccnt - 1);
1517		1812
1518	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1813	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1519	}	1814	}
1520		1815
1521	void	1816	void noinline
1522	ev_periodic_stop (EV_P_ ev_periodic *w)	1817	ev_periodic_stop (EV_P_ ev_periodic *w)
1523	{	1818	{
1524	ev_clear_pending (EV_A_ (W)w);	1819	clear_pending (EV_A_ (W)w);
1525	if (expect_false (!ev_is_active (w)))	1820	if (expect_false (!ev_is_active (w)))
1526	return;	1821	return;
1527		1822
1528	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1823	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1529		1824
		1825	{
		1826	int active = ((W)w)->active;
		1827
1530	if (expect_true (((W)w)->active < periodiccnt--))	1828	if (expect_true (--active < --periodiccnt))
1531	{	1829	{
1532	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1830	periodics [active] = periodics [periodiccnt];
1533	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1831	adjustheap (periodics, periodiccnt, active);
1534	}	1832	}
		1833	}
1535		1834
1536	ev_stop (EV_A_ (W)w);	1835	ev_stop (EV_A_ (W)w);
1537	}	1836	}
1538		1837
1539	void	1838	void noinline
1540	ev_periodic_again (EV_P_ ev_periodic *w)	1839	ev_periodic_again (EV_P_ ev_periodic *w)
1541	{	1840	{
1542	/* TODO: use adjustheap and recalculation */	1841	/* TODO: use adjustheap and recalculation */
1543	ev_periodic_stop (EV_A_ w);	1842	ev_periodic_stop (EV_A_ w);
1544	ev_periodic_start (EV_A_ w);	1843	ev_periodic_start (EV_A_ w);
1545	}	1844	}
1546	#endif	1845	#endif
1547		1846
1548	void
1549	ev_idle_start (EV_P_ ev_idle *w)
1550	{
1551	if (expect_false (ev_is_active (w)))
1552	return;
1553
1554	ev_start (EV_A_ (W)w, ++idlecnt);
1555	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1556	idles [idlecnt - 1] = w;
1557	}
1558
1559	void
1560	ev_idle_stop (EV_P_ ev_idle *w)
1561	{
1562	ev_clear_pending (EV_A_ (W)w);
1563	if (expect_false (!ev_is_active (w)))
1564	return;
1565
1566	{
1567	int active = ((W)w)->active;
1568	idles [active - 1] = idles [--idlecnt];
1569	((W)idles [active - 1])->active = active;
1570	}
1571
1572	ev_stop (EV_A_ (W)w);
1573	}
1574
1575	void
1576	ev_prepare_start (EV_P_ ev_prepare *w)
1577	{
1578	if (expect_false (ev_is_active (w)))
1579	return;
1580
1581	ev_start (EV_A_ (W)w, ++preparecnt);
1582	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1583	prepares [preparecnt - 1] = w;
1584	}
1585
1586	void
1587	ev_prepare_stop (EV_P_ ev_prepare *w)
1588	{
1589	ev_clear_pending (EV_A_ (W)w);
1590	if (expect_false (!ev_is_active (w)))
1591	return;
1592
1593	{
1594	int active = ((W)w)->active;
1595	prepares [active - 1] = prepares [--preparecnt];
1596	((W)prepares [active - 1])->active = active;
1597	}
1598
1599	ev_stop (EV_A_ (W)w);
1600	}
1601
1602	void
1603	ev_check_start (EV_P_ ev_check *w)
1604	{
1605	if (expect_false (ev_is_active (w)))
1606	return;
1607
1608	ev_start (EV_A_ (W)w, ++checkcnt);
1609	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1610	checks [checkcnt - 1] = w;
1611	}
1612
1613	void
1614	ev_check_stop (EV_P_ ev_check *w)
1615	{
1616	ev_clear_pending (EV_A_ (W)w);
1617	if (expect_false (!ev_is_active (w)))
1618	return;
1619
1620	{
1621	int active = ((W)w)->active;
1622	checks [active - 1] = checks [--checkcnt];
1623	((W)checks [active - 1])->active = active;
1624	}
1625
1626	ev_stop (EV_A_ (W)w);
1627	}
1628
1629	#ifndef SA_RESTART	1847	#ifndef SA_RESTART
1630	# define SA_RESTART 0	1848	# define SA_RESTART 0
1631	#endif	1849	#endif
1632		1850
1633	void	1851	void noinline
1634	ev_signal_start (EV_P_ ev_signal *w)	1852	ev_signal_start (EV_P_ ev_signal *w)
1635	{	1853	{
1636	#if EV_MULTIPLICITY	1854	#if EV_MULTIPLICITY
1637	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1855	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1638	#endif	1856	#endif
1639	if (expect_false (ev_is_active (w)))	1857	if (expect_false (ev_is_active (w)))
1640	return;	1858	return;
1641		1859
1642	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1860	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1643		1861
		1862	{
		1863	#ifndef _WIN32
		1864	sigset_t full, prev;
		1865	sigfillset (&full);
		1866	sigprocmask (SIG_SETMASK, &full, &prev);
		1867	#endif
		1868
		1869	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1870
		1871	#ifndef _WIN32
		1872	sigprocmask (SIG_SETMASK, &prev, 0);
		1873	#endif
		1874	}
		1875
1644	ev_start (EV_A_ (W)w, 1);	1876	ev_start (EV_A_ (W)w, 1);
1645	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1646	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1877	wlist_add (&signals [w->signum - 1].head, (WL)w);
1647		1878
1648	if (!((WL)w)->next)	1879	if (!((WL)w)->next)
1649	{	1880	{
1650	#if _WIN32	1881	#if _WIN32
1651	signal (w->signum, sighandler);	1882	signal (w->signum, sighandler);
…		…
1657	sigaction (w->signum, &sa, 0);	1888	sigaction (w->signum, &sa, 0);
1658	#endif	1889	#endif
1659	}	1890	}
1660	}	1891	}
1661		1892
1662	void	1893	void noinline
1663	ev_signal_stop (EV_P_ ev_signal *w)	1894	ev_signal_stop (EV_P_ ev_signal *w)
1664	{	1895	{
1665	ev_clear_pending (EV_A_ (W)w);	1896	clear_pending (EV_A_ (W)w);
1666	if (expect_false (!ev_is_active (w)))	1897	if (expect_false (!ev_is_active (w)))
1667	return;	1898	return;
1668		1899
1669	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1900	wlist_del (&signals [w->signum - 1].head, (WL)w);
1670	ev_stop (EV_A_ (W)w);	1901	ev_stop (EV_A_ (W)w);
1671		1902
1672	if (!signals [w->signum - 1].head)	1903	if (!signals [w->signum - 1].head)
1673	signal (w->signum, SIG_DFL);	1904	signal (w->signum, SIG_DFL);
1674	}	1905	}
…		…
1681	#endif	1912	#endif
1682	if (expect_false (ev_is_active (w)))	1913	if (expect_false (ev_is_active (w)))
1683	return;	1914	return;
1684		1915
1685	ev_start (EV_A_ (W)w, 1);	1916	ev_start (EV_A_ (W)w, 1);
1686	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1917	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1687	}	1918	}
1688		1919
1689	void	1920	void
1690	ev_child_stop (EV_P_ ev_child *w)	1921	ev_child_stop (EV_P_ ev_child *w)
1691	{	1922	{
1692	ev_clear_pending (EV_A_ (W)w);	1923	clear_pending (EV_A_ (W)w);
1693	if (expect_false (!ev_is_active (w)))	1924	if (expect_false (!ev_is_active (w)))
1694	return;	1925	return;
1695		1926
1696	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1927	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1697	ev_stop (EV_A_ (W)w);	1928	ev_stop (EV_A_ (W)w);
1698	}	1929	}
1699		1930
1700	#if EV_MULTIPLICITY	1931	#if EV_STAT_ENABLE
		1932
		1933	# ifdef _WIN32
		1934	# undef lstat
		1935	# define lstat(a,b) _stati64 (a,b)
		1936	# endif
		1937
		1938	#define DEF_STAT_INTERVAL 5.0074891
		1939	#define MIN_STAT_INTERVAL 0.1074891
		1940
		1941	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1942
		1943	#if EV_USE_INOTIFY
		1944	# define EV_INOTIFY_BUFSIZE 8192
		1945
		1946	static void noinline
		1947	infy_add (EV_P_ ev_stat *w)
		1948	{
		1949	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);
		1950
		1951	if (w->wd < 0)
		1952	{
		1953	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1954
		1955	/* monitor some parent directory for speedup hints */
		1956	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1957	{
		1958	char path [4096];
		1959	strcpy (path, w->path);
		1960
		1961	do
		1962	{
		1963	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1964	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1965
		1966	char *pend = strrchr (path, '/');
		1967
		1968	if (!pend)
		1969	break; /* whoops, no '/', complain to your admin */
		1970
		1971	*pend = 0;
		1972	w->wd = inotify_add_watch (fs_fd, path, mask);
		1973	}
		1974	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1975	}
		1976	}
		1977	else
		1978	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1979
		1980	if (w->wd >= 0)
		1981	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1982	}
		1983
		1984	static void noinline
		1985	infy_del (EV_P_ ev_stat *w)
		1986	{
		1987	int slot;
		1988	int wd = w->wd;
		1989
		1990	if (wd < 0)
		1991	return;
		1992
		1993	w->wd = -2;
		1994	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1995	wlist_del (&fs_hash [slot].head, (WL)w);
		1996
		1997	/* remove this watcher, if others are watching it, they will rearm */
		1998	inotify_rm_watch (fs_fd, wd);
		1999	}
		2000
		2001	static void noinline
		2002	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2003	{
		2004	if (slot < 0)
		2005	/* overflow, need to check for all hahs slots */
		2006	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2007	infy_wd (EV_A_ slot, wd, ev);
		2008	else
		2009	{
		2010	WL w_;
		2011
		2012	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2013	{
		2014	ev_stat *w = (ev_stat *)w_;
		2015	w_ = w_->next; /* lets us remove this watcher and all before it */
		2016
		2017	if (w->wd == wd || wd == -1)
		2018	{
		2019	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2020	{
		2021	w->wd = -1;
		2022	infy_add (EV_A_ w); /* re-add, no matter what */
		2023	}
		2024
		2025	stat_timer_cb (EV_A_ &w->timer, 0);
		2026	}
		2027	}
		2028	}
		2029	}
		2030
		2031	static void
		2032	infy_cb (EV_P_ ev_io *w, int revents)
		2033	{
		2034	char buf [EV_INOTIFY_BUFSIZE];
		2035	struct inotify_event *ev = (struct inotify_event *)buf;
		2036	int ofs;
		2037	int len = read (fs_fd, buf, sizeof (buf));
		2038
		2039	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2040	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2041	}
		2042
		2043	void inline_size
		2044	infy_init (EV_P)
		2045	{
		2046	if (fs_fd != -2)
		2047	return;
		2048
		2049	fs_fd = inotify_init ();
		2050
		2051	if (fs_fd >= 0)
		2052	{
		2053	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2054	ev_set_priority (&fs_w, EV_MAXPRI);
		2055	ev_io_start (EV_A_ &fs_w);
		2056	}
		2057	}
		2058
		2059	void inline_size
		2060	infy_fork (EV_P)
		2061	{
		2062	int slot;
		2063
		2064	if (fs_fd < 0)
		2065	return;
		2066
		2067	close (fs_fd);
		2068	fs_fd = inotify_init ();
		2069
		2070	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2071	{
		2072	WL w_ = fs_hash [slot].head;
		2073	fs_hash [slot].head = 0;
		2074
		2075	while (w_)
		2076	{
		2077	ev_stat *w = (ev_stat *)w_;
		2078	w_ = w_->next; /* lets us add this watcher */
		2079
		2080	w->wd = -1;
		2081
		2082	if (fs_fd >= 0)
		2083	infy_add (EV_A_ w); /* re-add, no matter what */
		2084	else
		2085	ev_timer_start (EV_A_ &w->timer);
		2086	}
		2087
		2088	}
		2089	}
		2090
		2091	#endif
		2092
1701	void	2093	void
		2094	ev_stat_stat (EV_P_ ev_stat *w)
		2095	{
		2096	if (lstat (w->path, &w->attr) < 0)
		2097	w->attr.st_nlink = 0;
		2098	else if (!w->attr.st_nlink)
		2099	w->attr.st_nlink = 1;
		2100	}
		2101
		2102	static void noinline
		2103	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		2104	{
		2105	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2106
		2107	/* we copy this here each the time so that */
		2108	/* prev has the old value when the callback gets invoked */
		2109	w->prev = w->attr;
		2110	ev_stat_stat (EV_A_ w);
		2111
		2112	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2113	if (
		2114	w->prev.st_dev != w->attr.st_dev
		2115	|| w->prev.st_ino != w->attr.st_ino
		2116	|| w->prev.st_mode != w->attr.st_mode
		2117	|| w->prev.st_nlink != w->attr.st_nlink
		2118	|| w->prev.st_uid != w->attr.st_uid
		2119	|| w->prev.st_gid != w->attr.st_gid
		2120	|| w->prev.st_rdev != w->attr.st_rdev
		2121	|| w->prev.st_size != w->attr.st_size
		2122	|| w->prev.st_atime != w->attr.st_atime
		2123	|| w->prev.st_mtime != w->attr.st_mtime
		2124	|| w->prev.st_ctime != w->attr.st_ctime
		2125	) {
		2126	#if EV_USE_INOTIFY
		2127	infy_del (EV_A_ w);
		2128	infy_add (EV_A_ w);
		2129	ev_stat_stat (EV_A_ w); /* avoid race... */
		2130	#endif
		2131
		2132	ev_feed_event (EV_A_ w, EV_STAT);
		2133	}
		2134	}
		2135
		2136	void
		2137	ev_stat_start (EV_P_ ev_stat *w)
		2138	{
		2139	if (expect_false (ev_is_active (w)))
		2140	return;
		2141
		2142	/* since we use memcmp, we need to clear any padding data etc. */
		2143	memset (&w->prev, 0, sizeof (ev_statdata));
		2144	memset (&w->attr, 0, sizeof (ev_statdata));
		2145
		2146	ev_stat_stat (EV_A_ w);
		2147
		2148	if (w->interval < MIN_STAT_INTERVAL)
		2149	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2150
		2151	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2152	ev_set_priority (&w->timer, ev_priority (w));
		2153
		2154	#if EV_USE_INOTIFY
		2155	infy_init (EV_A);
		2156
		2157	if (fs_fd >= 0)
		2158	infy_add (EV_A_ w);
		2159	else
		2160	#endif
		2161	ev_timer_start (EV_A_ &w->timer);
		2162
		2163	ev_start (EV_A_ (W)w, 1);
		2164	}
		2165
		2166	void
		2167	ev_stat_stop (EV_P_ ev_stat *w)
		2168	{
		2169	clear_pending (EV_A_ (W)w);
		2170	if (expect_false (!ev_is_active (w)))
		2171	return;
		2172
		2173	#if EV_USE_INOTIFY
		2174	infy_del (EV_A_ w);
		2175	#endif
		2176	ev_timer_stop (EV_A_ &w->timer);
		2177
		2178	ev_stop (EV_A_ (W)w);
		2179	}
		2180	#endif
		2181
		2182	#if EV_IDLE_ENABLE
		2183	void
		2184	ev_idle_start (EV_P_ ev_idle *w)
		2185	{
		2186	if (expect_false (ev_is_active (w)))
		2187	return;
		2188
		2189	pri_adjust (EV_A_ (W)w);
		2190
		2191	{
		2192	int active = ++idlecnt [ABSPRI (w)];
		2193
		2194	++idleall;
		2195	ev_start (EV_A_ (W)w, active);
		2196
		2197	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2198	idles [ABSPRI (w)][active - 1] = w;
		2199	}
		2200	}
		2201
		2202	void
		2203	ev_idle_stop (EV_P_ ev_idle *w)
		2204	{
		2205	clear_pending (EV_A_ (W)w);
		2206	if (expect_false (!ev_is_active (w)))
		2207	return;
		2208
		2209	{
		2210	int active = ((W)w)->active;
		2211
		2212	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2213	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2214
		2215	ev_stop (EV_A_ (W)w);
		2216	--idleall;
		2217	}
		2218	}
		2219	#endif
		2220
		2221	void
		2222	ev_prepare_start (EV_P_ ev_prepare *w)
		2223	{
		2224	if (expect_false (ev_is_active (w)))
		2225	return;
		2226
		2227	ev_start (EV_A_ (W)w, ++preparecnt);
		2228	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2229	prepares [preparecnt - 1] = w;
		2230	}
		2231
		2232	void
		2233	ev_prepare_stop (EV_P_ ev_prepare *w)
		2234	{
		2235	clear_pending (EV_A_ (W)w);
		2236	if (expect_false (!ev_is_active (w)))
		2237	return;
		2238
		2239	{
		2240	int active = ((W)w)->active;
		2241	prepares [active - 1] = prepares [--preparecnt];
		2242	((W)prepares [active - 1])->active = active;
		2243	}
		2244
		2245	ev_stop (EV_A_ (W)w);
		2246	}
		2247
		2248	void
		2249	ev_check_start (EV_P_ ev_check *w)
		2250	{
		2251	if (expect_false (ev_is_active (w)))
		2252	return;
		2253
		2254	ev_start (EV_A_ (W)w, ++checkcnt);
		2255	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2256	checks [checkcnt - 1] = w;
		2257	}
		2258
		2259	void
		2260	ev_check_stop (EV_P_ ev_check *w)
		2261	{
		2262	clear_pending (EV_A_ (W)w);
		2263	if (expect_false (!ev_is_active (w)))
		2264	return;
		2265
		2266	{
		2267	int active = ((W)w)->active;
		2268	checks [active - 1] = checks [--checkcnt];
		2269	((W)checks [active - 1])->active = active;
		2270	}
		2271
		2272	ev_stop (EV_A_ (W)w);
		2273	}
		2274
		2275	#if EV_EMBED_ENABLE
		2276	void noinline
1702	ev_embed_sweep (EV_P_ ev_embed *w)	2277	ev_embed_sweep (EV_P_ ev_embed *w)
1703	{	2278	{
1704	ev_loop (w->loop, EVLOOP_NONBLOCK);	2279	ev_loop (w->other, EVLOOP_NONBLOCK);
1705	}	2280	}
1706		2281
1707	static void	2282	static void
1708	embed_cb (EV_P_ ev_io *io, int revents)	2283	embed_io_cb (EV_P_ ev_io *io, int revents)
1709	{	2284	{
1710	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2285	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1711		2286
1712	if (ev_cb (w))	2287	if (ev_cb (w))
1713	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2288	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1714	else	2289	else
1715	ev_embed_sweep (loop, w);	2290	ev_loop (w->other, EVLOOP_NONBLOCK);
1716	}	2291	}
		2292
		2293	static void
		2294	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2295	{
		2296	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2297
		2298	{
		2299	struct ev_loop *loop = w->other;
		2300
		2301	while (fdchangecnt)
		2302	{
		2303	fd_reify (EV_A);
		2304	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2305	}
		2306	}
		2307	}
		2308
		2309	#if 0
		2310	static void
		2311	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2312	{
		2313	ev_idle_stop (EV_A_ idle);
		2314	}
		2315	#endif
1717		2316
1718	void	2317	void
1719	ev_embed_start (EV_P_ ev_embed *w)	2318	ev_embed_start (EV_P_ ev_embed *w)
1720	{	2319	{
1721	if (expect_false (ev_is_active (w)))	2320	if (expect_false (ev_is_active (w)))
1722	return;	2321	return;
1723		2322
1724	{	2323	{
1725	struct ev_loop *loop = w->loop;	2324	struct ev_loop *loop = w->other;
1726	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2325	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1727	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2326	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1728	}	2327	}
1729		2328
1730	ev_set_priority (&w->io, ev_priority (w));	2329	ev_set_priority (&w->io, ev_priority (w));
1731	ev_io_start (EV_A_ &w->io);	2330	ev_io_start (EV_A_ &w->io);
		2331
		2332	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2333	ev_set_priority (&w->prepare, EV_MINPRI);
		2334	ev_prepare_start (EV_A_ &w->prepare);
		2335
		2336	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2337
1732	ev_start (EV_A_ (W)w, 1);	2338	ev_start (EV_A_ (W)w, 1);
1733	}	2339	}
1734		2340
1735	void	2341	void
1736	ev_embed_stop (EV_P_ ev_embed *w)	2342	ev_embed_stop (EV_P_ ev_embed *w)
1737	{	2343	{
1738	ev_clear_pending (EV_A_ (W)w);	2344	clear_pending (EV_A_ (W)w);
1739	if (expect_false (!ev_is_active (w)))	2345	if (expect_false (!ev_is_active (w)))
1740	return;	2346	return;
1741		2347
1742	ev_io_stop (EV_A_ &w->io);	2348	ev_io_stop (EV_A_ &w->io);
		2349	ev_prepare_stop (EV_A_ &w->prepare);
		2350
		2351	ev_stop (EV_A_ (W)w);
		2352	}
		2353	#endif
		2354
		2355	#if EV_FORK_ENABLE
		2356	void
		2357	ev_fork_start (EV_P_ ev_fork *w)
		2358	{
		2359	if (expect_false (ev_is_active (w)))
		2360	return;
		2361
		2362	ev_start (EV_A_ (W)w, ++forkcnt);
		2363	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2364	forks [forkcnt - 1] = w;
		2365	}
		2366
		2367	void
		2368	ev_fork_stop (EV_P_ ev_fork *w)
		2369	{
		2370	clear_pending (EV_A_ (W)w);
		2371	if (expect_false (!ev_is_active (w)))
		2372	return;
		2373
		2374	{
		2375	int active = ((W)w)->active;
		2376	forks [active - 1] = forks [--forkcnt];
		2377	((W)forks [active - 1])->active = active;
		2378	}
		2379
1743	ev_stop (EV_A_ (W)w);	2380	ev_stop (EV_A_ (W)w);
1744	}	2381	}
1745	#endif	2382	#endif
1746		2383
1747	/*****************************************************************************/	2384	/*****************************************************************************/
…		…
1806	ev_timer_set (&once->to, timeout, 0.);	2443	ev_timer_set (&once->to, timeout, 0.);
1807	ev_timer_start (EV_A_ &once->to);	2444	ev_timer_start (EV_A_ &once->to);
1808	}	2445	}
1809	}	2446	}
1810		2447
		2448	#if EV_MULTIPLICITY
		2449	#include "ev_wrap.h"
		2450	#endif
		2451
1811	#ifdef __cplusplus	2452	#ifdef __cplusplus
1812	}	2453	}
1813	#endif	2454	#endif
1814		2455

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