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Comparing libev/ev.c (file contents):
Revision 1.123 by root, Sat Nov 17 02:23:54 2007 UTC vs.
Revision 1.184 by root, Wed Dec 12 05:30:52 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
40	# ifndef EV_USE_MONOTONIC	44	# ifndef EV_USE_MONOTONIC
41	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
42	# endif	46	# endif
43	# ifndef EV_USE_REALTIME	47	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
45	# endif	49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
46	# endif	57	# endif
47		58
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	59	# ifndef EV_USE_SELECT
		60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
50	# endif	65	# endif
51		66
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	67	# ifndef EV_USE_POLL
		68	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
54	# endif	73	# endif
55		74
56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	75	# ifndef EV_USE_EPOLL
		76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
58	# endif	81	# endif
59		82
		83	# ifndef EV_USE_KQUEUE
60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
62	# endif	89	# endif
63		90
64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)	91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
65	# define EV_USE_PORT 1	93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
		97	# endif
		98
		99	# ifndef EV_USE_INOTIFY
		100	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		101	# define EV_USE_INOTIFY 1
		102	# else
		103	# define EV_USE_INOTIFY 0
		104	# endif
66	# endif	105	# endif
67		106
68	#endif	107	#endif
69		108
70	#include <math.h>	109	#include <math.h>
…		…
79	#include <sys/types.h>	118	#include <sys/types.h>
80	#include <time.h>	119	#include <time.h>
81		120
82	#include <signal.h>	121	#include <signal.h>
83		122
		123	#ifdef EV_H
		124	# include EV_H
		125	#else
		126	# include "ev.h"
		127	#endif
		128
84	#ifndef _WIN32	129	#ifndef _WIN32
85	# include <unistd.h>
86	# include <sys/time.h>	130	# include <sys/time.h>
87	# include <sys/wait.h>	131	# include <sys/wait.h>
		132	# include <unistd.h>
88	#else	133	#else
89	# define WIN32_LEAN_AND_MEAN	134	# define WIN32_LEAN_AND_MEAN
90	# include <windows.h>	135	# include <windows.h>
91	# ifndef EV_SELECT_IS_WINSOCKET	136	# ifndef EV_SELECT_IS_WINSOCKET
92	# define EV_SELECT_IS_WINSOCKET 1	137	# define EV_SELECT_IS_WINSOCKET 1
…		…
125		170
126	#ifndef EV_USE_PORT	171	#ifndef EV_USE_PORT
127	# define EV_USE_PORT 0	172	# define EV_USE_PORT 0
128	#endif	173	#endif
129		174
		175	#ifndef EV_USE_INOTIFY
		176	# define EV_USE_INOTIFY 0
		177	#endif
		178
		179	#ifndef EV_PID_HASHSIZE
		180	# if EV_MINIMAL
		181	# define EV_PID_HASHSIZE 1
		182	# else
		183	# define EV_PID_HASHSIZE 16
		184	# endif
		185	#endif
		186
		187	#ifndef EV_INOTIFY_HASHSIZE
		188	# if EV_MINIMAL
		189	# define EV_INOTIFY_HASHSIZE 1
		190	# else
		191	# define EV_INOTIFY_HASHSIZE 16
		192	# endif
		193	#endif
		194
130	/**/	195	/**/
131
132	/* darwin simply cannot be helped */
133	#ifdef __APPLE__
134	# undef EV_USE_POLL
135	# undef EV_USE_KQUEUE
136	#endif
137		196
138	#ifndef CLOCK_MONOTONIC	197	#ifndef CLOCK_MONOTONIC
139	# undef EV_USE_MONOTONIC	198	# undef EV_USE_MONOTONIC
140	# define EV_USE_MONOTONIC 0	199	# define EV_USE_MONOTONIC 0
141	#endif	200	#endif
…		…
147		206
148	#if EV_SELECT_IS_WINSOCKET	207	#if EV_SELECT_IS_WINSOCKET
149	# include <winsock.h>	208	# include <winsock.h>
150	#endif	209	#endif
151		210
		211	#if !EV_STAT_ENABLE
		212	# define EV_USE_INOTIFY 0
		213	#endif
		214
		215	#if EV_USE_INOTIFY
		216	# include <sys/inotify.h>
		217	#endif
		218
152	/**/	219	/**/
		220
		221	/*
		222	* This is used to avoid floating point rounding problems.
		223	* It is added to ev_rt_now when scheduling periodics
		224	* to ensure progress, time-wise, even when rounding
		225	* errors are against us.
		226	* This value is good at least till the year 4000.
		227	* Better solutions welcome.
		228	*/
		229	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
153		230
154	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	231	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
155	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	232	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
156	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
157	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	233	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
158
159	#ifdef EV_H
160	# include EV_H
161	#else
162	# include "ev.h"
163	#endif
164		234
165	#if __GNUC__ >= 3	235	#if __GNUC__ >= 3
166	# define expect(expr,value) __builtin_expect ((expr),(value))	236	# define expect(expr,value) __builtin_expect ((expr),(value))
167	# define inline static inline	237	# define noinline __attribute__ ((noinline))
168	#else	238	#else
169	# define expect(expr,value) (expr)	239	# define expect(expr,value) (expr)
170	# define inline static	240	# define noinline
		241	# if __STDC_VERSION__ < 199901L
		242	# define inline
		243	# endif
171	#endif	244	#endif
172		245
173	#define expect_false(expr) expect ((expr) != 0, 0)	246	#define expect_false(expr) expect ((expr) != 0, 0)
174	#define expect_true(expr) expect ((expr) != 0, 1)	247	#define expect_true(expr) expect ((expr) != 0, 1)
		248	#define inline_size static inline
		249
		250	#if EV_MINIMAL
		251	# define inline_speed static noinline
		252	#else
		253	# define inline_speed static inline
		254	#endif
175		255
176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	256	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	257	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
178		258
179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	259	#define EMPTY /* required for microsofts broken pseudo-c compiler */
180	#define EMPTY2(a,b) /* used to suppress some warnings */	260	#define EMPTY2(a,b) /* used to suppress some warnings */
181		261
182	typedef struct ev_watcher *W;	262	typedef ev_watcher *W;
183	typedef struct ev_watcher_list *WL;	263	typedef ev_watcher_list *WL;
184	typedef struct ev_watcher_time *WT;	264	typedef ev_watcher_time *WT;
185		265
186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	266	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
187		267
188	#ifdef _WIN32	268	#ifdef _WIN32
189	# include "ev_win32.c"	269	# include "ev_win32.c"
…		…
191		271
192	/*****************************************************************************/	272	/*****************************************************************************/
193		273
194	static void (*syserr_cb)(const char *msg);	274	static void (*syserr_cb)(const char *msg);
195		275
		276	void
196	void ev_set_syserr_cb (void (*cb)(const char *msg))	277	ev_set_syserr_cb (void (*cb)(const char *msg))
197	{	278	{
198	syserr_cb = cb;	279	syserr_cb = cb;
199	}	280	}
200		281
201	static void	282	static void noinline
202	syserr (const char *msg)	283	syserr (const char *msg)
203	{	284	{
204	if (!msg)	285	if (!msg)
205	msg = "(libev) system error";	286	msg = "(libev) system error";
206		287
…		…
213	}	294	}
214	}	295	}
215		296
216	static void *(*alloc)(void *ptr, long size);	297	static void *(*alloc)(void *ptr, long size);
217		298
		299	void
218	void ev_set_allocator (void *(*cb)(void *ptr, long size))	300	ev_set_allocator (void *(*cb)(void *ptr, long size))
219	{	301	{
220	alloc = cb;	302	alloc = cb;
221	}	303	}
222		304
223	static void *	305	inline_speed void *
224	ev_realloc (void *ptr, long size)	306	ev_realloc (void *ptr, long size)
225	{	307	{
226	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	308	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
227		309
228	if (!ptr && size)	310	if (!ptr && size)
…		…
252	typedef struct	334	typedef struct
253	{	335	{
254	W w;	336	W w;
255	int events;	337	int events;
256	} ANPENDING;	338	} ANPENDING;
		339
		340	#if EV_USE_INOTIFY
		341	typedef struct
		342	{
		343	WL head;
		344	} ANFS;
		345	#endif
257		346
258	#if EV_MULTIPLICITY	347	#if EV_MULTIPLICITY
259		348
260	struct ev_loop	349	struct ev_loop
261	{	350	{
…		…
295	gettimeofday (&tv, 0);	384	gettimeofday (&tv, 0);
296	return tv.tv_sec + tv.tv_usec * 1e-6;	385	return tv.tv_sec + tv.tv_usec * 1e-6;
297	#endif	386	#endif
298	}	387	}
299		388
300	inline ev_tstamp	389	ev_tstamp inline_size
301	get_clock (void)	390	get_clock (void)
302	{	391	{
303	#if EV_USE_MONOTONIC	392	#if EV_USE_MONOTONIC
304	if (expect_true (have_monotonic))	393	if (expect_true (have_monotonic))
305	{	394	{
…		…
318	{	407	{
319	return ev_rt_now;	408	return ev_rt_now;
320	}	409	}
321	#endif	410	#endif
322		411
323	#define array_roundsize(type,n) (((n) | 4) & ~3)	412	int inline_size
		413	array_nextsize (int elem, int cur, int cnt)
		414	{
		415	int ncur = cur + 1;
		416
		417	do
		418	ncur <<= 1;
		419	while (cnt > ncur);
		420
		421	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		422	if (elem * ncur > 4096)
		423	{
		424	ncur *= elem;
		425	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		426	ncur = ncur - sizeof (void *) * 4;
		427	ncur /= elem;
		428	}
		429
		430	return ncur;
		431	}
		432
		433	static noinline void *
		434	array_realloc (int elem, void *base, int *cur, int cnt)
		435	{
		436	*cur = array_nextsize (elem, *cur, cnt);
		437	return ev_realloc (base, elem * *cur);
		438	}
324		439
325	#define array_needsize(type,base,cur,cnt,init) \	440	#define array_needsize(type,base,cur,cnt,init) \
326	if (expect_false ((cnt) > cur)) \	441	if (expect_false ((cnt) > (cur))) \
327	{ \	442	{ \
328	int newcnt = cur; \	443	int ocur_ = (cur); \
329	do \	444	(base) = (type *)array_realloc \
330	{ \	445	(sizeof (type), (base), &(cur), (cnt)); \
331	newcnt = array_roundsize (type, newcnt << 1); \	446	init ((base) + (ocur_), (cur) - ocur_); \
332	} \
333	while ((cnt) > newcnt); \
334	\
335	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
336	init (base + cur, newcnt - cur); \
337	cur = newcnt; \
338	}	447	}
339		448
		449	#if 0
340	#define array_slim(type,stem) \	450	#define array_slim(type,stem) \
341	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	451	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
342	{ \	452	{ \
343	stem ## max = array_roundsize (stem ## cnt >> 1); \	453	stem ## max = array_roundsize (stem ## cnt >> 1); \
344	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	454	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
345	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	455	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
346	}	456	}
		457	#endif
347		458
348	#define array_free(stem, idx) \	459	#define array_free(stem, idx) \
349	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	460	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
350		461
351	/*****************************************************************************/	462	/*****************************************************************************/
352		463
353	static void	464	void noinline
		465	ev_feed_event (EV_P_ void *w, int revents)
		466	{
		467	W w_ = (W)w;
		468	int pri = ABSPRI (w_);
		469
		470	if (expect_false (w_->pending))
		471	pendings [pri][w_->pending - 1].events |= revents;
		472	else
		473	{
		474	w_->pending = ++pendingcnt [pri];
		475	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		476	pendings [pri][w_->pending - 1].w = w_;
		477	pendings [pri][w_->pending - 1].events = revents;
		478	}
		479	}
		480
		481	void inline_speed
		482	queue_events (EV_P_ W *events, int eventcnt, int type)
		483	{
		484	int i;
		485
		486	for (i = 0; i < eventcnt; ++i)
		487	ev_feed_event (EV_A_ events [i], type);
		488	}
		489
		490	/*****************************************************************************/
		491
		492	void inline_size
354	anfds_init (ANFD *base, int count)	493	anfds_init (ANFD *base, int count)
355	{	494	{
356	while (count--)	495	while (count--)
357	{	496	{
358	base->head = 0;	497	base->head = 0;
…		…
361		500
362	++base;	501	++base;
363	}	502	}
364	}	503	}
365		504
366	void	505	void inline_speed
367	ev_feed_event (EV_P_ void *w, int revents)
368	{
369	W w_ = (W)w;
370
371	if (expect_false (w_->pending))
372	{
373	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
374	return;
375	}
376
377	w_->pending = ++pendingcnt [ABSPRI (w_)];
378	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
381	}
382
383	static void
384	queue_events (EV_P_ W *events, int eventcnt, int type)
385	{
386	int i;
387
388	for (i = 0; i < eventcnt; ++i)
389	ev_feed_event (EV_A_ events [i], type);
390	}
391
392	inline void
393	fd_event (EV_P_ int fd, int revents)	506	fd_event (EV_P_ int fd, int revents)
394	{	507	{
395	ANFD *anfd = anfds + fd;	508	ANFD *anfd = anfds + fd;
396	struct ev_io *w;	509	ev_io *w;
397		510
398	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	511	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
399	{	512	{
400	int ev = w->events & revents;	513	int ev = w->events & revents;
401		514
402	if (ev)	515	if (ev)
403	ev_feed_event (EV_A_ (W)w, ev);	516	ev_feed_event (EV_A_ (W)w, ev);
…		…
405	}	518	}
406		519
407	void	520	void
408	ev_feed_fd_event (EV_P_ int fd, int revents)	521	ev_feed_fd_event (EV_P_ int fd, int revents)
409	{	522	{
		523	if (fd >= 0 && fd < anfdmax)
410	fd_event (EV_A_ fd, revents);	524	fd_event (EV_A_ fd, revents);
411	}	525	}
412		526
413	/*****************************************************************************/	527	void inline_size
414
415	inline void
416	fd_reify (EV_P)	528	fd_reify (EV_P)
417	{	529	{
418	int i;	530	int i;
419		531
420	for (i = 0; i < fdchangecnt; ++i)	532	for (i = 0; i < fdchangecnt; ++i)
421	{	533	{
422	int fd = fdchanges [i];	534	int fd = fdchanges [i];
423	ANFD *anfd = anfds + fd;	535	ANFD *anfd = anfds + fd;
424	struct ev_io *w;	536	ev_io *w;
425		537
426	int events = 0;	538	unsigned char events = 0;
427		539
428	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	540	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
429	events |= w->events;	541	events |= (unsigned char)w->events;
430		542
431	#if EV_SELECT_IS_WINSOCKET	543	#if EV_SELECT_IS_WINSOCKET
432	if (events)	544	if (events)
433	{	545	{
434	unsigned long argp;	546	unsigned long argp;
435	anfd->handle = _get_osfhandle (fd);	547	anfd->handle = _get_osfhandle (fd);
436	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	548	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
437	}	549	}
438	#endif	550	#endif
439		551
		552	{
		553	unsigned char o_events = anfd->events;
		554	unsigned char o_reify = anfd->reify;
		555
440	anfd->reify = 0;	556	anfd->reify = 0;
441
442	method_modify (EV_A_ fd, anfd->events, events);
443	anfd->events = events;	557	anfd->events = events;
		558
		559	if (o_events != events || o_reify & EV_IOFDSET)
		560	backend_modify (EV_A_ fd, o_events, events);
		561	}
444	}	562	}
445		563
446	fdchangecnt = 0;	564	fdchangecnt = 0;
447	}	565	}
448		566
449	static void	567	void inline_size
450	fd_change (EV_P_ int fd)	568	fd_change (EV_P_ int fd, int flags)
451	{	569	{
452	if (expect_false (anfds [fd].reify))	570	unsigned char reify = anfds [fd].reify;
453	return;
454
455	anfds [fd].reify = 1;	571	anfds [fd].reify |= flags;
456		572
		573	if (expect_true (!reify))
		574	{
457	++fdchangecnt;	575	++fdchangecnt;
458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	576	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
459	fdchanges [fdchangecnt - 1] = fd;	577	fdchanges [fdchangecnt - 1] = fd;
		578	}
460	}	579	}
461		580
462	static void	581	void inline_speed
463	fd_kill (EV_P_ int fd)	582	fd_kill (EV_P_ int fd)
464	{	583	{
465	struct ev_io *w;	584	ev_io *w;
466		585
467	while ((w = (struct ev_io *)anfds [fd].head))	586	while ((w = (ev_io *)anfds [fd].head))
468	{	587	{
469	ev_io_stop (EV_A_ w);	588	ev_io_stop (EV_A_ w);
470	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	589	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
471	}	590	}
472	}	591	}
473		592
474	inline int	593	int inline_size
475	fd_valid (int fd)	594	fd_valid (int fd)
476	{	595	{
477	#ifdef _WIN32	596	#ifdef _WIN32
478	return _get_osfhandle (fd) != -1;	597	return _get_osfhandle (fd) != -1;
479	#else	598	#else
480	return fcntl (fd, F_GETFD) != -1;	599	return fcntl (fd, F_GETFD) != -1;
481	#endif	600	#endif
482	}	601	}
483		602
484	/* called on EBADF to verify fds */	603	/* called on EBADF to verify fds */
485	static void	604	static void noinline
486	fd_ebadf (EV_P)	605	fd_ebadf (EV_P)
487	{	606	{
488	int fd;	607	int fd;
489		608
490	for (fd = 0; fd < anfdmax; ++fd)	609	for (fd = 0; fd < anfdmax; ++fd)
…		…
492	if (!fd_valid (fd) == -1 && errno == EBADF)	611	if (!fd_valid (fd) == -1 && errno == EBADF)
493	fd_kill (EV_A_ fd);	612	fd_kill (EV_A_ fd);
494	}	613	}
495		614
496	/* called on ENOMEM in select/poll to kill some fds and retry */	615	/* called on ENOMEM in select/poll to kill some fds and retry */
497	static void	616	static void noinline
498	fd_enomem (EV_P)	617	fd_enomem (EV_P)
499	{	618	{
500	int fd;	619	int fd;
501		620
502	for (fd = anfdmax; fd--; )	621	for (fd = anfdmax; fd--; )
…		…
505	fd_kill (EV_A_ fd);	624	fd_kill (EV_A_ fd);
506	return;	625	return;
507	}	626	}
508	}	627	}
509		628
510	/* usually called after fork if method needs to re-arm all fds from scratch */	629	/* usually called after fork if backend needs to re-arm all fds from scratch */
511	static void	630	static void noinline
512	fd_rearm_all (EV_P)	631	fd_rearm_all (EV_P)
513	{	632	{
514	int fd;	633	int fd;
515		634
516	/* this should be highly optimised to not do anything but set a flag */
517	for (fd = 0; fd < anfdmax; ++fd)	635	for (fd = 0; fd < anfdmax; ++fd)
518	if (anfds [fd].events)	636	if (anfds [fd].events)
519	{	637	{
520	anfds [fd].events = 0;	638	anfds [fd].events = 0;
521	fd_change (EV_A_ fd);	639	fd_change (EV_A_ fd, EV_IOFDSET | 1);
522	}	640	}
523	}	641	}
524		642
525	/*****************************************************************************/	643	/*****************************************************************************/
526		644
527	static void	645	void inline_speed
528	upheap (WT *heap, int k)	646	upheap (WT *heap, int k)
529	{	647	{
530	WT w = heap [k];	648	WT w = heap [k];
531		649
532	while (k && heap [k >> 1]->at > w->at)	650	while (k)
533	{	651	{
		652	int p = (k - 1) >> 1;
		653
		654	if (heap [p]->at <= w->at)
		655	break;
		656
534	heap [k] = heap [k >> 1];	657	heap [k] = heap [p];
535	((W)heap [k])->active = k + 1;	658	((W)heap [k])->active = k + 1;
536	k >>= 1;	659	k = p;
537	}	660	}
538		661
539	heap [k] = w;	662	heap [k] = w;
540	((W)heap [k])->active = k + 1;	663	((W)heap [k])->active = k + 1;
541
542	}	664	}
543		665
544	static void	666	void inline_speed
545	downheap (WT *heap, int N, int k)	667	downheap (WT *heap, int N, int k)
546	{	668	{
547	WT w = heap [k];	669	WT w = heap [k];
548		670
549	while (k < (N >> 1))	671	for (;;)
550	{	672	{
551	int j = k << 1;	673	int c = (k << 1) + 1;
552		674
553	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	675	if (c >= N)
554	++j;
555
556	if (w->at <= heap [j]->at)
557	break;	676	break;
558		677
		678	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		679	? 1 : 0;
		680
		681	if (w->at <= heap [c]->at)
		682	break;
		683
559	heap [k] = heap [j];	684	heap [k] = heap [c];
560	((W)heap [k])->active = k + 1;	685	((W)heap [k])->active = k + 1;
		686
561	k = j;	687	k = c;
562	}	688	}
563		689
564	heap [k] = w;	690	heap [k] = w;
565	((W)heap [k])->active = k + 1;	691	((W)heap [k])->active = k + 1;
566	}	692	}
567		693
568	inline void	694	void inline_size
569	adjustheap (WT *heap, int N, int k)	695	adjustheap (WT *heap, int N, int k)
570	{	696	{
571	upheap (heap, k);	697	upheap (heap, k);
572	downheap (heap, N, k);	698	downheap (heap, N, k);
573	}	699	}
…		…
583	static ANSIG *signals;	709	static ANSIG *signals;
584	static int signalmax;	710	static int signalmax;
585		711
586	static int sigpipe [2];	712	static int sigpipe [2];
587	static sig_atomic_t volatile gotsig;	713	static sig_atomic_t volatile gotsig;
588	static struct ev_io sigev;	714	static ev_io sigev;
589		715
590	static void	716	void inline_size
591	signals_init (ANSIG *base, int count)	717	signals_init (ANSIG *base, int count)
592	{	718	{
593	while (count--)	719	while (count--)
594	{	720	{
595	base->head = 0;	721	base->head = 0;
…		…
615	write (sigpipe [1], &signum, 1);	741	write (sigpipe [1], &signum, 1);
616	errno = old_errno;	742	errno = old_errno;
617	}	743	}
618	}	744	}
619		745
620	void	746	void noinline
621	ev_feed_signal_event (EV_P_ int signum)	747	ev_feed_signal_event (EV_P_ int signum)
622	{	748	{
623	WL w;	749	WL w;
624		750
625	#if EV_MULTIPLICITY	751	#if EV_MULTIPLICITY
…		…
636	for (w = signals [signum].head; w; w = w->next)	762	for (w = signals [signum].head; w; w = w->next)
637	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	763	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
638	}	764	}
639		765
640	static void	766	static void
641	sigcb (EV_P_ struct ev_io *iow, int revents)	767	sigcb (EV_P_ ev_io *iow, int revents)
642	{	768	{
643	int signum;	769	int signum;
644		770
645	read (sigpipe [0], &revents, 1);	771	read (sigpipe [0], &revents, 1);
646	gotsig = 0;	772	gotsig = 0;
…		…
648	for (signum = signalmax; signum--; )	774	for (signum = signalmax; signum--; )
649	if (signals [signum].gotsig)	775	if (signals [signum].gotsig)
650	ev_feed_signal_event (EV_A_ signum + 1);	776	ev_feed_signal_event (EV_A_ signum + 1);
651	}	777	}
652		778
653	static void	779	void inline_speed
654	fd_intern (int fd)	780	fd_intern (int fd)
655	{	781	{
656	#ifdef _WIN32	782	#ifdef _WIN32
657	int arg = 1;	783	int arg = 1;
658	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	784	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
660	fcntl (fd, F_SETFD, FD_CLOEXEC);	786	fcntl (fd, F_SETFD, FD_CLOEXEC);
661	fcntl (fd, F_SETFL, O_NONBLOCK);	787	fcntl (fd, F_SETFL, O_NONBLOCK);
662	#endif	788	#endif
663	}	789	}
664		790
665	static void	791	static void noinline
666	siginit (EV_P)	792	siginit (EV_P)
667	{	793	{
668	fd_intern (sigpipe [0]);	794	fd_intern (sigpipe [0]);
669	fd_intern (sigpipe [1]);	795	fd_intern (sigpipe [1]);
670		796
…		…
673	ev_unref (EV_A); /* child watcher should not keep loop alive */	799	ev_unref (EV_A); /* child watcher should not keep loop alive */
674	}	800	}
675		801
676	/*****************************************************************************/	802	/*****************************************************************************/
677		803
678	static struct ev_child *childs [PID_HASHSIZE];	804	static WL childs [EV_PID_HASHSIZE];
679		805
680	#ifndef _WIN32	806	#ifndef _WIN32
681		807
682	static struct ev_signal childev;	808	static ev_signal childev;
		809
		810	void inline_speed
		811	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		812	{
		813	ev_child *w;
		814
		815	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		816	if (w->pid == pid || !w->pid)
		817	{
		818	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		819	w->rpid = pid;
		820	w->rstatus = status;
		821	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		822	}
		823	}
683		824
684	#ifndef WCONTINUED	825	#ifndef WCONTINUED
685	# define WCONTINUED 0	826	# define WCONTINUED 0
686	#endif	827	#endif
687		828
688	static void	829	static void
689	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
690	{
691	struct ev_child *w;
692
693	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
694	if (w->pid == pid || !w->pid)
695	{
696	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
697	w->rpid = pid;
698	w->rstatus = status;
699	ev_feed_event (EV_A_ (W)w, EV_CHILD);
700	}
701	}
702
703	static void
704	childcb (EV_P_ struct ev_signal *sw, int revents)	830	childcb (EV_P_ ev_signal *sw, int revents)
705	{	831	{
706	int pid, status;	832	int pid, status;
707		833
		834	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
708	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	835	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
709	{	836	if (!WCONTINUED
		837	|| errno != EINVAL
		838	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		839	return;
		840
710	/* make sure we are called again until all childs have been reaped */	841	/* make sure we are called again until all childs have been reaped */
		842	/* we need to do it this way so that the callback gets called before we continue */
711	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	843	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
712		844
713	child_reap (EV_A_ sw, pid, pid, status);	845	child_reap (EV_A_ sw, pid, pid, status);
		846	if (EV_PID_HASHSIZE > 1)
714	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	847	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
715	}
716	}	848	}
717		849
718	#endif	850	#endif
719		851
720	/*****************************************************************************/	852	/*****************************************************************************/
…		…
746	{	878	{
747	return EV_VERSION_MINOR;	879	return EV_VERSION_MINOR;
748	}	880	}
749		881
750	/* return true if we are running with elevated privileges and should ignore env variables */	882	/* return true if we are running with elevated privileges and should ignore env variables */
751	static int	883	int inline_size
752	enable_secure (void)	884	enable_secure (void)
753	{	885	{
754	#ifdef _WIN32	886	#ifdef _WIN32
755	return 0;	887	return 0;
756	#else	888	#else
…		…
758	|| getgid () != getegid ();	890	|| getgid () != getegid ();
759	#endif	891	#endif
760	}	892	}
761		893
762	unsigned int	894	unsigned int
763	ev_method (EV_P)	895	ev_supported_backends (void)
764	{	896	{
765	return method;	897	unsigned int flags = 0;
766	}
767		898
768	static void	899	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
		900	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		901	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		902	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		903	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		904
		905	return flags;
		906	}
		907
		908	unsigned int
		909	ev_recommended_backends (void)
		910	{
		911	unsigned int flags = ev_supported_backends ();
		912
		913	#ifndef __NetBSD__
		914	/* kqueue is borked on everything but netbsd apparently */
		915	/* it usually doesn't work correctly on anything but sockets and pipes */
		916	flags &= ~EVBACKEND_KQUEUE;
		917	#endif
		918	#ifdef __APPLE__
		919	// flags &= ~EVBACKEND_KQUEUE; for documentation
		920	flags &= ~EVBACKEND_POLL;
		921	#endif
		922
		923	return flags;
		924	}
		925
		926	unsigned int
		927	ev_embeddable_backends (void)
		928	{
		929	return EVBACKEND_EPOLL
		930	| EVBACKEND_KQUEUE
		931	| EVBACKEND_PORT;
		932	}
		933
		934	unsigned int
		935	ev_backend (EV_P)
		936	{
		937	return backend;
		938	}
		939
		940	unsigned int
		941	ev_loop_count (EV_P)
		942	{
		943	return loop_count;
		944	}
		945
		946	static void noinline
769	loop_init (EV_P_ unsigned int flags)	947	loop_init (EV_P_ unsigned int flags)
770	{	948	{
771	if (!method)	949	if (!backend)
772	{	950	{
773	#if EV_USE_MONOTONIC	951	#if EV_USE_MONOTONIC
774	{	952	{
775	struct timespec ts;	953	struct timespec ts;
776	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	954	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
781	ev_rt_now = ev_time ();	959	ev_rt_now = ev_time ();
782	mn_now = get_clock ();	960	mn_now = get_clock ();
783	now_floor = mn_now;	961	now_floor = mn_now;
784	rtmn_diff = ev_rt_now - mn_now;	962	rtmn_diff = ev_rt_now - mn_now;
785		963
786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))	964	/* pid check not overridable via env */
		965	#ifndef _WIN32
		966	if (flags & EVFLAG_FORKCHECK)
		967	curpid = getpid ();
		968	#endif
		969
		970	if (!(flags & EVFLAG_NOENV)
		971	&& !enable_secure ()
		972	&& getenv ("LIBEV_FLAGS"))
787	flags = atoi (getenv ("LIBEV_FLAGS"));	973	flags = atoi (getenv ("LIBEV_FLAGS"));
788		974
789	if (!(flags & 0x0000ffff))	975	if (!(flags & 0x0000ffffUL))
790	flags |= 0x0000ffff;	976	flags |= ev_recommended_backends ();
791		977
792	method = 0;	978	backend = 0;
		979	backend_fd = -1;
		980	#if EV_USE_INOTIFY
		981	fs_fd = -2;
		982	#endif
		983
793	#if EV_USE_PORT	984	#if EV_USE_PORT
794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);	985	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
795	#endif	986	#endif
796	#if EV_USE_KQUEUE	987	#if EV_USE_KQUEUE
797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);	988	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
798	#endif	989	#endif
799	#if EV_USE_EPOLL	990	#if EV_USE_EPOLL
800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);	991	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
801	#endif	992	#endif
802	#if EV_USE_POLL	993	#if EV_USE_POLL
803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);	994	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
804	#endif	995	#endif
805	#if EV_USE_SELECT	996	#if EV_USE_SELECT
806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);	997	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
807	#endif	998	#endif
808		999
809	ev_init (&sigev, sigcb);	1000	ev_init (&sigev, sigcb);
810	ev_set_priority (&sigev, EV_MAXPRI);	1001	ev_set_priority (&sigev, EV_MAXPRI);
811	}	1002	}
812	}	1003	}
813		1004
814	void	1005	static void noinline
815	loop_destroy (EV_P)	1006	loop_destroy (EV_P)
816	{	1007	{
817	int i;	1008	int i;
818		1009
		1010	#if EV_USE_INOTIFY
		1011	if (fs_fd >= 0)
		1012	close (fs_fd);
		1013	#endif
		1014
		1015	if (backend_fd >= 0)
		1016	close (backend_fd);
		1017
819	#if EV_USE_PORT	1018	#if EV_USE_PORT
820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);	1019	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
821	#endif	1020	#endif
822	#if EV_USE_KQUEUE	1021	#if EV_USE_KQUEUE
823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	1022	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
824	#endif	1023	#endif
825	#if EV_USE_EPOLL	1024	#if EV_USE_EPOLL
826	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	1025	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
827	#endif	1026	#endif
828	#if EV_USE_POLL	1027	#if EV_USE_POLL
829	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	1028	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
830	#endif	1029	#endif
831	#if EV_USE_SELECT	1030	#if EV_USE_SELECT
832	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	1031	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
833	#endif	1032	#endif
834		1033
835	for (i = NUMPRI; i--; )	1034	for (i = NUMPRI; i--; )
		1035	{
836	array_free (pending, [i]);	1036	array_free (pending, [i]);
		1037	#if EV_IDLE_ENABLE
		1038	array_free (idle, [i]);
		1039	#endif
		1040	}
837		1041
838	/* have to use the microsoft-never-gets-it-right macro */	1042	/* have to use the microsoft-never-gets-it-right macro */
839	array_free (fdchange, EMPTY0);	1043	array_free (fdchange, EMPTY);
840	array_free (timer, EMPTY0);	1044	array_free (timer, EMPTY);
841	#if EV_PERIODICS	1045	#if EV_PERIODIC_ENABLE
842	array_free (periodic, EMPTY0);	1046	array_free (periodic, EMPTY);
843	#endif	1047	#endif
844	array_free (idle, EMPTY0);
845	array_free (prepare, EMPTY0);	1048	array_free (prepare, EMPTY);
846	array_free (check, EMPTY0);	1049	array_free (check, EMPTY);
847		1050
848	method = 0;	1051	backend = 0;
849	}	1052	}
850		1053
851	static void	1054	void inline_size infy_fork (EV_P);
		1055
		1056	void inline_size
852	loop_fork (EV_P)	1057	loop_fork (EV_P)
853	{	1058	{
854	#if EV_USE_PORT	1059	#if EV_USE_PORT
855	if (method == EVMETHOD_PORT ) port_fork (EV_A);	1060	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
856	#endif	1061	#endif
857	#if EV_USE_KQUEUE	1062	#if EV_USE_KQUEUE
858	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1063	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
859	#endif	1064	#endif
860	#if EV_USE_EPOLL	1065	#if EV_USE_EPOLL
861	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1066	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1067	#endif
		1068	#if EV_USE_INOTIFY
		1069	infy_fork (EV_A);
862	#endif	1070	#endif
863		1071
864	if (ev_is_active (&sigev))	1072	if (ev_is_active (&sigev))
865	{	1073	{
866	/* default loop */	1074	/* default loop */
…		…
887		1095
888	memset (loop, 0, sizeof (struct ev_loop));	1096	memset (loop, 0, sizeof (struct ev_loop));
889		1097
890	loop_init (EV_A_ flags);	1098	loop_init (EV_A_ flags);
891		1099
892	if (ev_method (EV_A))	1100	if (ev_backend (EV_A))
893	return loop;	1101	return loop;
894		1102
895	return 0;	1103	return 0;
896	}	1104	}
897		1105
…		…
910		1118
911	#endif	1119	#endif
912		1120
913	#if EV_MULTIPLICITY	1121	#if EV_MULTIPLICITY
914	struct ev_loop *	1122	struct ev_loop *
915	ev_default_loop_ (unsigned int flags)	1123	ev_default_loop_init (unsigned int flags)
916	#else	1124	#else
917	int	1125	int
918	ev_default_loop (unsigned int flags)	1126	ev_default_loop (unsigned int flags)
919	#endif	1127	#endif
920	{	1128	{
…		…
930	ev_default_loop_ptr = 1;	1138	ev_default_loop_ptr = 1;
931	#endif	1139	#endif
932		1140
933	loop_init (EV_A_ flags);	1141	loop_init (EV_A_ flags);
934		1142
935	if (ev_method (EV_A))	1143	if (ev_backend (EV_A))
936	{	1144	{
937	siginit (EV_A);	1145	siginit (EV_A);
938		1146
939	#ifndef _WIN32	1147	#ifndef _WIN32
940	ev_signal_init (&childev, childcb, SIGCHLD);	1148	ev_signal_init (&childev, childcb, SIGCHLD);
…		…
976	{	1184	{
977	#if EV_MULTIPLICITY	1185	#if EV_MULTIPLICITY
978	struct ev_loop *loop = ev_default_loop_ptr;	1186	struct ev_loop *loop = ev_default_loop_ptr;
979	#endif	1187	#endif
980		1188
981	if (method)	1189	if (backend)
982	postfork = 1;	1190	postfork = 1;
983	}	1191	}
984		1192
985	/*****************************************************************************/	1193	/*****************************************************************************/
986		1194
987	static int	1195	void
988	any_pending (EV_P)	1196	ev_invoke (EV_P_ void *w, int revents)
989	{	1197	{
990	int pri;	1198	EV_CB_INVOKE ((W)w, revents);
991
992	for (pri = NUMPRI; pri--; )
993	if (pendingcnt [pri])
994	return 1;
995
996	return 0;
997	}	1199	}
998		1200
999	inline void	1201	void inline_speed
1000	call_pending (EV_P)	1202	call_pending (EV_P)
1001	{	1203	{
1002	int pri;	1204	int pri;
1003		1205
1004	for (pri = NUMPRI; pri--; )	1206	for (pri = NUMPRI; pri--; )
…		…
1006	{	1208	{
1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1209	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1008		1210
1009	if (expect_true (p->w))	1211	if (expect_true (p->w))
1010	{	1212	{
		1213	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1214
1011	p->w->pending = 0;	1215	p->w->pending = 0;
1012	EV_CB_INVOKE (p->w, p->events);	1216	EV_CB_INVOKE (p->w, p->events);
1013	}	1217	}
1014	}	1218	}
1015	}	1219	}
1016		1220
1017	inline void	1221	void inline_size
1018	timers_reify (EV_P)	1222	timers_reify (EV_P)
1019	{	1223	{
1020	while (timercnt && ((WT)timers [0])->at <= mn_now)	1224	while (timercnt && ((WT)timers [0])->at <= mn_now)
1021	{	1225	{
1022	struct ev_timer *w = timers [0];	1226	ev_timer *w = (ev_timer *)timers [0];
1023		1227
1024	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1228	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1025		1229
1026	/* first reschedule or stop timer */	1230	/* first reschedule or stop timer */
1027	if (w->repeat)	1231	if (w->repeat)
1028	{	1232	{
1029	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1233	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1030		1234
1031	((WT)w)->at += w->repeat;	1235	((WT)w)->at += w->repeat;
1032	if (((WT)w)->at < mn_now)	1236	if (((WT)w)->at < mn_now)
1033	((WT)w)->at = mn_now;	1237	((WT)w)->at = mn_now;
1034		1238
1035	downheap ((WT *)timers, timercnt, 0);	1239	downheap (timers, timercnt, 0);
1036	}	1240	}
1037	else	1241	else
1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1242	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1039		1243
1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1244	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1041	}	1245	}
1042	}	1246	}
1043		1247
1044	#if EV_PERIODICS	1248	#if EV_PERIODIC_ENABLE
1045	inline void	1249	void inline_size
1046	periodics_reify (EV_P)	1250	periodics_reify (EV_P)
1047	{	1251	{
1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1252	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1049	{	1253	{
1050	struct ev_periodic *w = periodics [0];	1254	ev_periodic *w = (ev_periodic *)periodics [0];
1051		1255
1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1256	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1053		1257
1054	/* first reschedule or stop timer */	1258	/* first reschedule or stop timer */
1055	if (w->reschedule_cb)	1259	if (w->reschedule_cb)
1056	{	1260	{
1057	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1261	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1058	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1262	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1059	downheap ((WT *)periodics, periodiccnt, 0);	1263	downheap (periodics, periodiccnt, 0);
1060	}	1264	}
1061	else if (w->interval)	1265	else if (w->interval)
1062	{	1266	{
1063	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1267	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1268	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1064	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1269	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1065	downheap ((WT *)periodics, periodiccnt, 0);	1270	downheap (periodics, periodiccnt, 0);
1066	}	1271	}
1067	else	1272	else
1068	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1273	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1069		1274
1070	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1275	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1071	}	1276	}
1072	}	1277	}
1073		1278
1074	static void	1279	static void noinline
1075	periodics_reschedule (EV_P)	1280	periodics_reschedule (EV_P)
1076	{	1281	{
1077	int i;	1282	int i;
1078		1283
1079	/* adjust periodics after time jump */	1284	/* adjust periodics after time jump */
1080	for (i = 0; i < periodiccnt; ++i)	1285	for (i = 0; i < periodiccnt; ++i)
1081	{	1286	{
1082	struct ev_periodic *w = periodics [i];	1287	ev_periodic *w = (ev_periodic *)periodics [i];
1083		1288
1084	if (w->reschedule_cb)	1289	if (w->reschedule_cb)
1085	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1290	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1086	else if (w->interval)	1291	else if (w->interval)
1087	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1292	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1088	}	1293	}
1089		1294
1090	/* now rebuild the heap */	1295	/* now rebuild the heap */
1091	for (i = periodiccnt >> 1; i--; )	1296	for (i = periodiccnt >> 1; i--; )
1092	downheap ((WT *)periodics, periodiccnt, i);	1297	downheap (periodics, periodiccnt, i);
1093	}	1298	}
1094	#endif	1299	#endif
1095		1300
1096	inline int	1301	#if EV_IDLE_ENABLE
1097	time_update_monotonic (EV_P)	1302	void inline_size
		1303	idle_reify (EV_P)
1098	{	1304	{
		1305	if (expect_false (idleall))
		1306	{
		1307	int pri;
		1308
		1309	for (pri = NUMPRI; pri--; )
		1310	{
		1311	if (pendingcnt [pri])
		1312	break;
		1313
		1314	if (idlecnt [pri])
		1315	{
		1316	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1317	break;
		1318	}
		1319	}
		1320	}
		1321	}
		1322	#endif
		1323
		1324	void inline_speed
		1325	time_update (EV_P_ ev_tstamp max_block)
		1326	{
		1327	int i;
		1328
		1329	#if EV_USE_MONOTONIC
		1330	if (expect_true (have_monotonic))
		1331	{
		1332	ev_tstamp odiff = rtmn_diff;
		1333
1099	mn_now = get_clock ();	1334	mn_now = get_clock ();
1100		1335
		1336	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1337	/* interpolate in the meantime */
1101	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1338	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1102	{	1339	{
1103	ev_rt_now = rtmn_diff + mn_now;	1340	ev_rt_now = rtmn_diff + mn_now;
1104	return 0;	1341	return;
1105	}	1342	}
1106	else	1343
1107	{
1108	now_floor = mn_now;	1344	now_floor = mn_now;
1109	ev_rt_now = ev_time ();	1345	ev_rt_now = ev_time ();
1110	return 1;
1111	}
1112	}
1113		1346
1114	inline void	1347	/* loop a few times, before making important decisions.
1115	time_update (EV_P)	1348	* on the choice of "4": one iteration isn't enough,
1116	{	1349	* in case we get preempted during the calls to
1117	int i;	1350	* ev_time and get_clock. a second call is almost guaranteed
1118		1351	* to succeed in that case, though. and looping a few more times
1119	#if EV_USE_MONOTONIC	1352	* doesn't hurt either as we only do this on time-jumps or
1120	if (expect_true (have_monotonic))	1353	* in the unlikely event of having been preempted here.
1121	{	1354	*/
1122	if (time_update_monotonic (EV_A))	1355	for (i = 4; --i; )
1123	{	1356	{
1124	ev_tstamp odiff = rtmn_diff;
1125
1126	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1127	{
1128	rtmn_diff = ev_rt_now - mn_now;	1357	rtmn_diff = ev_rt_now - mn_now;
1129		1358
1130	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1359	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1131	return; /* all is well */	1360	return; /* all is well */
1132		1361
1133	ev_rt_now = ev_time ();	1362	ev_rt_now = ev_time ();
1134	mn_now = get_clock ();	1363	mn_now = get_clock ();
1135	now_floor = mn_now;	1364	now_floor = mn_now;
1136	}	1365	}
1137		1366
1138	# if EV_PERIODICS	1367	# if EV_PERIODIC_ENABLE
		1368	periodics_reschedule (EV_A);
		1369	# endif
		1370	/* no timer adjustment, as the monotonic clock doesn't jump */
		1371	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
		1372	}
		1373	else
		1374	#endif
		1375	{
		1376	ev_rt_now = ev_time ();
		1377
		1378	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
		1379	{
		1380	#if EV_PERIODIC_ENABLE
1139	periodics_reschedule (EV_A);	1381	periodics_reschedule (EV_A);
1140	# endif	1382	#endif
1141	/* no timer adjustment, as the monotonic clock doesn't jump */
1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1143	}
1144	}
1145	else
1146	#endif
1147	{
1148	ev_rt_now = ev_time ();
1149
1150	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1151	{
1152	#if EV_PERIODICS
1153	periodics_reschedule (EV_A);
1154	#endif
1155
1156	/* adjust timers. this is easy, as the offset is the same for all */	1383	/* adjust timers. this is easy, as the offset is the same for all of them */
1157	for (i = 0; i < timercnt; ++i)	1384	for (i = 0; i < timercnt; ++i)
1158	((WT)timers [i])->at += ev_rt_now - mn_now;	1385	((WT)timers [i])->at += ev_rt_now - mn_now;
1159	}	1386	}
1160		1387
1161	mn_now = ev_rt_now;	1388	mn_now = ev_rt_now;
…		…
1177	static int loop_done;	1404	static int loop_done;
1178		1405
1179	void	1406	void
1180	ev_loop (EV_P_ int flags)	1407	ev_loop (EV_P_ int flags)
1181	{	1408	{
1182	double block;
1183	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1409	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1410	? EVUNLOOP_ONE
		1411	: EVUNLOOP_CANCEL;
1184		1412
1185	while (activecnt)	1413	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1414
		1415	do
1186	{	1416	{
		1417	#ifndef _WIN32
		1418	if (expect_false (curpid)) /* penalise the forking check even more */
		1419	if (expect_false (getpid () != curpid))
		1420	{
		1421	curpid = getpid ();
		1422	postfork = 1;
		1423	}
		1424	#endif
		1425
		1426	#if EV_FORK_ENABLE
		1427	/* we might have forked, so queue fork handlers */
		1428	if (expect_false (postfork))
		1429	if (forkcnt)
		1430	{
		1431	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1432	call_pending (EV_A);
		1433	}
		1434	#endif
		1435
1187	/* queue check watchers (and execute them) */	1436	/* queue prepare watchers (and execute them) */
1188	if (expect_false (preparecnt))	1437	if (expect_false (preparecnt))
1189	{	1438	{
1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1439	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1191	call_pending (EV_A);	1440	call_pending (EV_A);
1192	}	1441	}
1193		1442
		1443	if (expect_false (!activecnt))
		1444	break;
		1445
1194	/* we might have forked, so reify kernel state if necessary */	1446	/* we might have forked, so reify kernel state if necessary */
1195	if (expect_false (postfork))	1447	if (expect_false (postfork))
1196	loop_fork (EV_A);	1448	loop_fork (EV_A);
1197		1449
1198	/* update fd-related kernel structures */	1450	/* update fd-related kernel structures */
1199	fd_reify (EV_A);	1451	fd_reify (EV_A);
1200		1452
1201	/* calculate blocking time */	1453	/* calculate blocking time */
		1454	{
		1455	ev_tstamp block;
1202		1456
1203	/* we only need this for !monotonic clock or timers, but as we basically	1457	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1204	always have timers, we just calculate it always */	1458	block = 0.; /* do not block at all */
1205	#if EV_USE_MONOTONIC
1206	if (expect_true (have_monotonic))
1207	time_update_monotonic (EV_A);
1208	else	1459	else
1209	#endif
1210	{	1460	{
1211	ev_rt_now = ev_time ();	1461	/* update time to cancel out callback processing overhead */
1212	mn_now = ev_rt_now;	1462	time_update (EV_A_ 1e100);
1213	}
1214		1463
1215	if (flags & EVLOOP_NONBLOCK || idlecnt)
1216	block = 0.;
1217	else
1218	{
1219	block = MAX_BLOCKTIME;	1464	block = MAX_BLOCKTIME;
1220		1465
1221	if (timercnt)	1466	if (timercnt)
1222	{	1467	{
1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1468	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1224	if (block > to) block = to;	1469	if (block > to) block = to;
1225	}	1470	}
1226		1471
1227	#if EV_PERIODICS	1472	#if EV_PERIODIC_ENABLE
1228	if (periodiccnt)	1473	if (periodiccnt)
1229	{	1474	{
1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1475	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1231	if (block > to) block = to;	1476	if (block > to) block = to;
1232	}	1477	}
1233	#endif	1478	#endif
1234		1479
1235	if (expect_false (block < 0.)) block = 0.;	1480	if (expect_false (block < 0.)) block = 0.;
1236	}	1481	}
1237		1482
		1483	++loop_count;
1238	method_poll (EV_A_ block);	1484	backend_poll (EV_A_ block);
1239		1485
1240	/* update ev_rt_now, do magic */	1486	/* update ev_rt_now, do magic */
1241	time_update (EV_A);	1487	time_update (EV_A_ block);
		1488	}
1242		1489
1243	/* queue pending timers and reschedule them */	1490	/* queue pending timers and reschedule them */
1244	timers_reify (EV_A); /* relative timers called last */	1491	timers_reify (EV_A); /* relative timers called last */
1245	#if EV_PERIODICS	1492	#if EV_PERIODIC_ENABLE
1246	periodics_reify (EV_A); /* absolute timers called first */	1493	periodics_reify (EV_A); /* absolute timers called first */
1247	#endif	1494	#endif
1248		1495
		1496	#if EV_IDLE_ENABLE
1249	/* queue idle watchers unless io or timers are pending */	1497	/* queue idle watchers unless other events are pending */
1250	if (idlecnt && !any_pending (EV_A))	1498	idle_reify (EV_A);
1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1499	#endif
1252		1500
1253	/* queue check watchers, to be executed first */	1501	/* queue check watchers, to be executed first */
1254	if (expect_false (checkcnt))	1502	if (expect_false (checkcnt))
1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1503	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1256		1504
1257	call_pending (EV_A);	1505	call_pending (EV_A);
1258		1506
1259	if (expect_false (loop_done))
1260	break;
1261	}	1507	}
		1508	while (expect_true (activecnt && !loop_done));
1262		1509
1263	if (loop_done != 2)	1510	if (loop_done == EVUNLOOP_ONE)
1264	loop_done = 0;	1511	loop_done = EVUNLOOP_CANCEL;
1265	}	1512	}
1266		1513
1267	void	1514	void
1268	ev_unloop (EV_P_ int how)	1515	ev_unloop (EV_P_ int how)
1269	{	1516	{
1270	loop_done = how;	1517	loop_done = how;
1271	}	1518	}
1272		1519
1273	/*****************************************************************************/	1520	/*****************************************************************************/
1274		1521
1275	inline void	1522	void inline_size
1276	wlist_add (WL *head, WL elem)	1523	wlist_add (WL *head, WL elem)
1277	{	1524	{
1278	elem->next = *head;	1525	elem->next = *head;
1279	*head = elem;	1526	*head = elem;
1280	}	1527	}
1281		1528
1282	inline void	1529	void inline_size
1283	wlist_del (WL *head, WL elem)	1530	wlist_del (WL *head, WL elem)
1284	{	1531	{
1285	while (*head)	1532	while (*head)
1286	{	1533	{
1287	if (*head == elem)	1534	if (*head == elem)
…		…
1292		1539
1293	head = &(*head)->next;	1540	head = &(*head)->next;
1294	}	1541	}
1295	}	1542	}
1296		1543
1297	inline void	1544	void inline_speed
1298	ev_clear_pending (EV_P_ W w)	1545	clear_pending (EV_P_ W w)
1299	{	1546	{
1300	if (w->pending)	1547	if (w->pending)
1301	{	1548	{
1302	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1549	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1303	w->pending = 0;	1550	w->pending = 0;
1304	}	1551	}
1305	}	1552	}
1306		1553
1307	inline void	1554	int
		1555	ev_clear_pending (EV_P_ void *w)
		1556	{
		1557	W w_ = (W)w;
		1558	int pending = w_->pending;
		1559
		1560	if (expect_true (pending))
		1561	{
		1562	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1563	w_->pending = 0;
		1564	p->w = 0;
		1565	return p->events;
		1566	}
		1567	else
		1568	return 0;
		1569	}
		1570
		1571	void inline_size
		1572	pri_adjust (EV_P_ W w)
		1573	{
		1574	int pri = w->priority;
		1575	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1576	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1577	w->priority = pri;
		1578	}
		1579
		1580	void inline_speed
1308	ev_start (EV_P_ W w, int active)	1581	ev_start (EV_P_ W w, int active)
1309	{	1582	{
1310	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1583	pri_adjust (EV_A_ w);
1311	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1312
1313	w->active = active;	1584	w->active = active;
1314	ev_ref (EV_A);	1585	ev_ref (EV_A);
1315	}	1586	}
1316		1587
1317	inline void	1588	void inline_size
1318	ev_stop (EV_P_ W w)	1589	ev_stop (EV_P_ W w)
1319	{	1590	{
1320	ev_unref (EV_A);	1591	ev_unref (EV_A);
1321	w->active = 0;	1592	w->active = 0;
1322	}	1593	}
1323		1594
1324	/*****************************************************************************/	1595	/*****************************************************************************/
1325		1596
1326	void	1597	void noinline
1327	ev_io_start (EV_P_ struct ev_io *w)	1598	ev_io_start (EV_P_ ev_io *w)
1328	{	1599	{
1329	int fd = w->fd;	1600	int fd = w->fd;
1330		1601
1331	if (expect_false (ev_is_active (w)))	1602	if (expect_false (ev_is_active (w)))
1332	return;	1603	return;
1333		1604
1334	assert (("ev_io_start called with negative fd", fd >= 0));	1605	assert (("ev_io_start called with negative fd", fd >= 0));
1335		1606
1336	ev_start (EV_A_ (W)w, 1);	1607	ev_start (EV_A_ (W)w, 1);
1337	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1608	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1338	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1609	wlist_add (&anfds[fd].head, (WL)w);
1339		1610
1340	fd_change (EV_A_ fd);	1611	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1612	w->events &= ~EV_IOFDSET;
1341	}	1613	}
1342		1614
1343	void	1615	void noinline
1344	ev_io_stop (EV_P_ struct ev_io *w)	1616	ev_io_stop (EV_P_ ev_io *w)
1345	{	1617	{
1346	ev_clear_pending (EV_A_ (W)w);	1618	clear_pending (EV_A_ (W)w);
1347	if (expect_false (!ev_is_active (w)))	1619	if (expect_false (!ev_is_active (w)))
1348	return;	1620	return;
1349		1621
1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1622	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1351		1623
1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1624	wlist_del (&anfds[w->fd].head, (WL)w);
1353	ev_stop (EV_A_ (W)w);	1625	ev_stop (EV_A_ (W)w);
1354		1626
1355	fd_change (EV_A_ w->fd);	1627	fd_change (EV_A_ w->fd, 1);
1356	}	1628	}
1357		1629
1358	void	1630	void noinline
1359	ev_timer_start (EV_P_ struct ev_timer *w)	1631	ev_timer_start (EV_P_ ev_timer *w)
1360	{	1632	{
1361	if (expect_false (ev_is_active (w)))	1633	if (expect_false (ev_is_active (w)))
1362	return;	1634	return;
1363		1635
1364	((WT)w)->at += mn_now;	1636	((WT)w)->at += mn_now;
1365		1637
1366	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1638	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1367		1639
1368	ev_start (EV_A_ (W)w, ++timercnt);	1640	ev_start (EV_A_ (W)w, ++timercnt);
1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);	1641	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1370	timers [timercnt - 1] = w;	1642	timers [timercnt - 1] = (WT)w;
1371	upheap ((WT *)timers, timercnt - 1);	1643	upheap (timers, timercnt - 1);
1372		1644
1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1645	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1374	}	1646	}
1375		1647
1376	void	1648	void noinline
1377	ev_timer_stop (EV_P_ struct ev_timer *w)	1649	ev_timer_stop (EV_P_ ev_timer *w)
1378	{	1650	{
1379	ev_clear_pending (EV_A_ (W)w);	1651	clear_pending (EV_A_ (W)w);
1380	if (expect_false (!ev_is_active (w)))	1652	if (expect_false (!ev_is_active (w)))
1381	return;	1653	return;
1382		1654
1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1655	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1384		1656
		1657	{
		1658	int active = ((W)w)->active;
		1659
1385	if (expect_true (((W)w)->active < timercnt--))	1660	if (expect_true (--active < --timercnt))
1386	{	1661	{
1387	timers [((W)w)->active - 1] = timers [timercnt];	1662	timers [active] = timers [timercnt];
1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1663	adjustheap (timers, timercnt, active);
1389	}	1664	}
		1665	}
1390		1666
1391	((WT)w)->at -= mn_now;	1667	((WT)w)->at -= mn_now;
1392		1668
1393	ev_stop (EV_A_ (W)w);	1669	ev_stop (EV_A_ (W)w);
1394	}	1670	}
1395		1671
1396	void	1672	void noinline
1397	ev_timer_again (EV_P_ struct ev_timer *w)	1673	ev_timer_again (EV_P_ ev_timer *w)
1398	{	1674	{
1399	if (ev_is_active (w))	1675	if (ev_is_active (w))
1400	{	1676	{
1401	if (w->repeat)	1677	if (w->repeat)
1402	{	1678	{
1403	((WT)w)->at = mn_now + w->repeat;	1679	((WT)w)->at = mn_now + w->repeat;
1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1680	adjustheap (timers, timercnt, ((W)w)->active - 1);
1405	}	1681	}
1406	else	1682	else
1407	ev_timer_stop (EV_A_ w);	1683	ev_timer_stop (EV_A_ w);
1408	}	1684	}
1409	else if (w->repeat)	1685	else if (w->repeat)
…		…
1411	w->at = w->repeat;	1687	w->at = w->repeat;
1412	ev_timer_start (EV_A_ w);	1688	ev_timer_start (EV_A_ w);
1413	}	1689	}
1414	}	1690	}
1415		1691
1416	#if EV_PERIODICS	1692	#if EV_PERIODIC_ENABLE
1417	void	1693	void noinline
1418	ev_periodic_start (EV_P_ struct ev_periodic *w)	1694	ev_periodic_start (EV_P_ ev_periodic *w)
1419	{	1695	{
1420	if (expect_false (ev_is_active (w)))	1696	if (expect_false (ev_is_active (w)))
1421	return;	1697	return;
1422		1698
1423	if (w->reschedule_cb)	1699	if (w->reschedule_cb)
1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1700	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1425	else if (w->interval)	1701	else if (w->interval)
1426	{	1702	{
1427	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1703	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1428	/* this formula differs from the one in periodic_reify because we do not always round up */	1704	/* this formula differs from the one in periodic_reify because we do not always round up */
1429	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1705	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1430	}	1706	}
		1707	else
		1708	((WT)w)->at = w->offset;
1431		1709
1432	ev_start (EV_A_ (W)w, ++periodiccnt);	1710	ev_start (EV_A_ (W)w, ++periodiccnt);
1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1711	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1434	periodics [periodiccnt - 1] = w;	1712	periodics [periodiccnt - 1] = (WT)w;
1435	upheap ((WT *)periodics, periodiccnt - 1);	1713	upheap (periodics, periodiccnt - 1);
1436		1714
1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1715	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1438	}	1716	}
1439		1717
1440	void	1718	void noinline
1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1719	ev_periodic_stop (EV_P_ ev_periodic *w)
1442	{	1720	{
1443	ev_clear_pending (EV_A_ (W)w);	1721	clear_pending (EV_A_ (W)w);
1444	if (expect_false (!ev_is_active (w)))	1722	if (expect_false (!ev_is_active (w)))
1445	return;	1723	return;
1446		1724
1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1725	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1448		1726
		1727	{
		1728	int active = ((W)w)->active;
		1729
1449	if (expect_true (((W)w)->active < periodiccnt--))	1730	if (expect_true (--active < --periodiccnt))
1450	{	1731	{
1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1732	periodics [active] = periodics [periodiccnt];
1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1733	adjustheap (periodics, periodiccnt, active);
1453	}	1734	}
		1735	}
1454		1736
1455	ev_stop (EV_A_ (W)w);	1737	ev_stop (EV_A_ (W)w);
1456	}	1738	}
1457		1739
1458	void	1740	void noinline
1459	ev_periodic_again (EV_P_ struct ev_periodic *w)	1741	ev_periodic_again (EV_P_ ev_periodic *w)
1460	{	1742	{
1461	/* TODO: use adjustheap and recalculation */	1743	/* TODO: use adjustheap and recalculation */
1462	ev_periodic_stop (EV_A_ w);	1744	ev_periodic_stop (EV_A_ w);
1463	ev_periodic_start (EV_A_ w);	1745	ev_periodic_start (EV_A_ w);
1464	}	1746	}
1465	#endif	1747	#endif
1466		1748
1467	void
1468	ev_idle_start (EV_P_ struct ev_idle *w)
1469	{
1470	if (expect_false (ev_is_active (w)))
1471	return;
1472
1473	ev_start (EV_A_ (W)w, ++idlecnt);
1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1475	idles [idlecnt - 1] = w;
1476	}
1477
1478	void
1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1480	{
1481	ev_clear_pending (EV_A_ (W)w);
1482	if (expect_false (!ev_is_active (w)))
1483	return;
1484
1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1486	ev_stop (EV_A_ (W)w);
1487	}
1488
1489	void
1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1491	{
1492	if (expect_false (ev_is_active (w)))
1493	return;
1494
1495	ev_start (EV_A_ (W)w, ++preparecnt);
1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1497	prepares [preparecnt - 1] = w;
1498	}
1499
1500	void
1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1502	{
1503	ev_clear_pending (EV_A_ (W)w);
1504	if (expect_false (!ev_is_active (w)))
1505	return;
1506
1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1508	ev_stop (EV_A_ (W)w);
1509	}
1510
1511	void
1512	ev_check_start (EV_P_ struct ev_check *w)
1513	{
1514	if (expect_false (ev_is_active (w)))
1515	return;
1516
1517	ev_start (EV_A_ (W)w, ++checkcnt);
1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1519	checks [checkcnt - 1] = w;
1520	}
1521
1522	void
1523	ev_check_stop (EV_P_ struct ev_check *w)
1524	{
1525	ev_clear_pending (EV_A_ (W)w);
1526	if (expect_false (!ev_is_active (w)))
1527	return;
1528
1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1530	ev_stop (EV_A_ (W)w);
1531	}
1532
1533	#ifndef SA_RESTART	1749	#ifndef SA_RESTART
1534	# define SA_RESTART 0	1750	# define SA_RESTART 0
1535	#endif	1751	#endif
1536		1752
1537	void	1753	void noinline
1538	ev_signal_start (EV_P_ struct ev_signal *w)	1754	ev_signal_start (EV_P_ ev_signal *w)
1539	{	1755	{
1540	#if EV_MULTIPLICITY	1756	#if EV_MULTIPLICITY
1541	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1757	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1542	#endif	1758	#endif
1543	if (expect_false (ev_is_active (w)))	1759	if (expect_false (ev_is_active (w)))
1544	return;	1760	return;
1545		1761
1546	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1762	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1547		1763
		1764	{
		1765	#ifndef _WIN32
		1766	sigset_t full, prev;
		1767	sigfillset (&full);
		1768	sigprocmask (SIG_SETMASK, &full, &prev);
		1769	#endif
		1770
		1771	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1772
		1773	#ifndef _WIN32
		1774	sigprocmask (SIG_SETMASK, &prev, 0);
		1775	#endif
		1776	}
		1777
1548	ev_start (EV_A_ (W)w, 1);	1778	ev_start (EV_A_ (W)w, 1);
1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1779	wlist_add (&signals [w->signum - 1].head, (WL)w);
1551		1780
1552	if (!((WL)w)->next)	1781	if (!((WL)w)->next)
1553	{	1782	{
1554	#if _WIN32	1783	#if _WIN32
1555	signal (w->signum, sighandler);	1784	signal (w->signum, sighandler);
…		…
1561	sigaction (w->signum, &sa, 0);	1790	sigaction (w->signum, &sa, 0);
1562	#endif	1791	#endif
1563	}	1792	}
1564	}	1793	}
1565		1794
1566	void	1795	void noinline
1567	ev_signal_stop (EV_P_ struct ev_signal *w)	1796	ev_signal_stop (EV_P_ ev_signal *w)
1568	{	1797	{
1569	ev_clear_pending (EV_A_ (W)w);	1798	clear_pending (EV_A_ (W)w);
1570	if (expect_false (!ev_is_active (w)))	1799	if (expect_false (!ev_is_active (w)))
1571	return;	1800	return;
1572		1801
1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1802	wlist_del (&signals [w->signum - 1].head, (WL)w);
1574	ev_stop (EV_A_ (W)w);	1803	ev_stop (EV_A_ (W)w);
1575		1804
1576	if (!signals [w->signum - 1].head)	1805	if (!signals [w->signum - 1].head)
1577	signal (w->signum, SIG_DFL);	1806	signal (w->signum, SIG_DFL);
1578	}	1807	}
1579		1808
1580	void	1809	void
1581	ev_child_start (EV_P_ struct ev_child *w)	1810	ev_child_start (EV_P_ ev_child *w)
1582	{	1811	{
1583	#if EV_MULTIPLICITY	1812	#if EV_MULTIPLICITY
1584	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1813	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1585	#endif	1814	#endif
1586	if (expect_false (ev_is_active (w)))	1815	if (expect_false (ev_is_active (w)))
1587	return;	1816	return;
1588		1817
1589	ev_start (EV_A_ (W)w, 1);	1818	ev_start (EV_A_ (W)w, 1);
1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1819	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1591	}	1820	}
1592		1821
1593	void	1822	void
1594	ev_child_stop (EV_P_ struct ev_child *w)	1823	ev_child_stop (EV_P_ ev_child *w)
1595	{	1824	{
1596	ev_clear_pending (EV_A_ (W)w);	1825	clear_pending (EV_A_ (W)w);
1597	if (expect_false (!ev_is_active (w)))	1826	if (expect_false (!ev_is_active (w)))
1598	return;	1827	return;
1599		1828
1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1829	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1601	ev_stop (EV_A_ (W)w);	1830	ev_stop (EV_A_ (W)w);
1602	}	1831	}
1603		1832
		1833	#if EV_STAT_ENABLE
		1834
		1835	# ifdef _WIN32
		1836	# undef lstat
		1837	# define lstat(a,b) _stati64 (a,b)
		1838	# endif
		1839
		1840	#define DEF_STAT_INTERVAL 5.0074891
		1841	#define MIN_STAT_INTERVAL 0.1074891
		1842
		1843	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1844
		1845	#if EV_USE_INOTIFY
		1846	# define EV_INOTIFY_BUFSIZE 8192
		1847
		1848	static void noinline
		1849	infy_add (EV_P_ ev_stat *w)
		1850	{
		1851	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);
		1852
		1853	if (w->wd < 0)
		1854	{
		1855	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1856
		1857	/* monitor some parent directory for speedup hints */
		1858	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1859	{
		1860	char path [4096];
		1861	strcpy (path, w->path);
		1862
		1863	do
		1864	{
		1865	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1866	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1867
		1868	char *pend = strrchr (path, '/');
		1869
		1870	if (!pend)
		1871	break; /* whoops, no '/', complain to your admin */
		1872
		1873	*pend = 0;
		1874	w->wd = inotify_add_watch (fs_fd, path, mask);
		1875	}
		1876	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1877	}
		1878	}
		1879	else
		1880	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1881
		1882	if (w->wd >= 0)
		1883	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1884	}
		1885
		1886	static void noinline
		1887	infy_del (EV_P_ ev_stat *w)
		1888	{
		1889	int slot;
		1890	int wd = w->wd;
		1891
		1892	if (wd < 0)
		1893	return;
		1894
		1895	w->wd = -2;
		1896	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1897	wlist_del (&fs_hash [slot].head, (WL)w);
		1898
		1899	/* remove this watcher, if others are watching it, they will rearm */
		1900	inotify_rm_watch (fs_fd, wd);
		1901	}
		1902
		1903	static void noinline
		1904	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1905	{
		1906	if (slot < 0)
		1907	/* overflow, need to check for all hahs slots */
		1908	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1909	infy_wd (EV_A_ slot, wd, ev);
		1910	else
		1911	{
		1912	WL w_;
		1913
		1914	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1915	{
		1916	ev_stat *w = (ev_stat *)w_;
		1917	w_ = w_->next; /* lets us remove this watcher and all before it */
		1918
		1919	if (w->wd == wd || wd == -1)
		1920	{
		1921	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		1922	{
		1923	w->wd = -1;
		1924	infy_add (EV_A_ w); /* re-add, no matter what */
		1925	}
		1926
		1927	stat_timer_cb (EV_A_ &w->timer, 0);
		1928	}
		1929	}
		1930	}
		1931	}
		1932
		1933	static void
		1934	infy_cb (EV_P_ ev_io *w, int revents)
		1935	{
		1936	char buf [EV_INOTIFY_BUFSIZE];
		1937	struct inotify_event *ev = (struct inotify_event *)buf;
		1938	int ofs;
		1939	int len = read (fs_fd, buf, sizeof (buf));
		1940
		1941	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		1942	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		1943	}
		1944
		1945	void inline_size
		1946	infy_init (EV_P)
		1947	{
		1948	if (fs_fd != -2)
		1949	return;
		1950
		1951	fs_fd = inotify_init ();
		1952
		1953	if (fs_fd >= 0)
		1954	{
		1955	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		1956	ev_set_priority (&fs_w, EV_MAXPRI);
		1957	ev_io_start (EV_A_ &fs_w);
		1958	}
		1959	}
		1960
		1961	void inline_size
		1962	infy_fork (EV_P)
		1963	{
		1964	int slot;
		1965
		1966	if (fs_fd < 0)
		1967	return;
		1968
		1969	close (fs_fd);
		1970	fs_fd = inotify_init ();
		1971
		1972	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1973	{
		1974	WL w_ = fs_hash [slot].head;
		1975	fs_hash [slot].head = 0;
		1976
		1977	while (w_)
		1978	{
		1979	ev_stat *w = (ev_stat *)w_;
		1980	w_ = w_->next; /* lets us add this watcher */
		1981
		1982	w->wd = -1;
		1983
		1984	if (fs_fd >= 0)
		1985	infy_add (EV_A_ w); /* re-add, no matter what */
		1986	else
		1987	ev_timer_start (EV_A_ &w->timer);
		1988	}
		1989
		1990	}
		1991	}
		1992
		1993	#endif
		1994
		1995	void
		1996	ev_stat_stat (EV_P_ ev_stat *w)
		1997	{
		1998	if (lstat (w->path, &w->attr) < 0)
		1999	w->attr.st_nlink = 0;
		2000	else if (!w->attr.st_nlink)
		2001	w->attr.st_nlink = 1;
		2002	}
		2003
		2004	static void noinline
		2005	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		2006	{
		2007	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2008
		2009	/* we copy this here each the time so that */
		2010	/* prev has the old value when the callback gets invoked */
		2011	w->prev = w->attr;
		2012	ev_stat_stat (EV_A_ w);
		2013
		2014	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2015	if (
		2016	w->prev.st_dev != w->attr.st_dev
		2017	|| w->prev.st_ino != w->attr.st_ino
		2018	|| w->prev.st_mode != w->attr.st_mode
		2019	|| w->prev.st_nlink != w->attr.st_nlink
		2020	|| w->prev.st_uid != w->attr.st_uid
		2021	|| w->prev.st_gid != w->attr.st_gid
		2022	|| w->prev.st_rdev != w->attr.st_rdev
		2023	|| w->prev.st_size != w->attr.st_size
		2024	|| w->prev.st_atime != w->attr.st_atime
		2025	|| w->prev.st_mtime != w->attr.st_mtime
		2026	|| w->prev.st_ctime != w->attr.st_ctime
		2027	) {
		2028	#if EV_USE_INOTIFY
		2029	infy_del (EV_A_ w);
		2030	infy_add (EV_A_ w);
		2031	ev_stat_stat (EV_A_ w); /* avoid race... */
		2032	#endif
		2033
		2034	ev_feed_event (EV_A_ w, EV_STAT);
		2035	}
		2036	}
		2037
		2038	void
		2039	ev_stat_start (EV_P_ ev_stat *w)
		2040	{
		2041	if (expect_false (ev_is_active (w)))
		2042	return;
		2043
		2044	/* since we use memcmp, we need to clear any padding data etc. */
		2045	memset (&w->prev, 0, sizeof (ev_statdata));
		2046	memset (&w->attr, 0, sizeof (ev_statdata));
		2047
		2048	ev_stat_stat (EV_A_ w);
		2049
		2050	if (w->interval < MIN_STAT_INTERVAL)
		2051	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2052
		2053	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2054	ev_set_priority (&w->timer, ev_priority (w));
		2055
		2056	#if EV_USE_INOTIFY
		2057	infy_init (EV_A);
		2058
		2059	if (fs_fd >= 0)
		2060	infy_add (EV_A_ w);
		2061	else
		2062	#endif
		2063	ev_timer_start (EV_A_ &w->timer);
		2064
		2065	ev_start (EV_A_ (W)w, 1);
		2066	}
		2067
		2068	void
		2069	ev_stat_stop (EV_P_ ev_stat *w)
		2070	{
		2071	clear_pending (EV_A_ (W)w);
		2072	if (expect_false (!ev_is_active (w)))
		2073	return;
		2074
		2075	#if EV_USE_INOTIFY
		2076	infy_del (EV_A_ w);
		2077	#endif
		2078	ev_timer_stop (EV_A_ &w->timer);
		2079
		2080	ev_stop (EV_A_ (W)w);
		2081	}
		2082	#endif
		2083
		2084	#if EV_IDLE_ENABLE
		2085	void
		2086	ev_idle_start (EV_P_ ev_idle *w)
		2087	{
		2088	if (expect_false (ev_is_active (w)))
		2089	return;
		2090
		2091	pri_adjust (EV_A_ (W)w);
		2092
		2093	{
		2094	int active = ++idlecnt [ABSPRI (w)];
		2095
		2096	++idleall;
		2097	ev_start (EV_A_ (W)w, active);
		2098
		2099	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2100	idles [ABSPRI (w)][active - 1] = w;
		2101	}
		2102	}
		2103
		2104	void
		2105	ev_idle_stop (EV_P_ ev_idle *w)
		2106	{
		2107	clear_pending (EV_A_ (W)w);
		2108	if (expect_false (!ev_is_active (w)))
		2109	return;
		2110
		2111	{
		2112	int active = ((W)w)->active;
		2113
		2114	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2115	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2116
		2117	ev_stop (EV_A_ (W)w);
		2118	--idleall;
		2119	}
		2120	}
		2121	#endif
		2122
		2123	void
		2124	ev_prepare_start (EV_P_ ev_prepare *w)
		2125	{
		2126	if (expect_false (ev_is_active (w)))
		2127	return;
		2128
		2129	ev_start (EV_A_ (W)w, ++preparecnt);
		2130	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2131	prepares [preparecnt - 1] = w;
		2132	}
		2133
		2134	void
		2135	ev_prepare_stop (EV_P_ ev_prepare *w)
		2136	{
		2137	clear_pending (EV_A_ (W)w);
		2138	if (expect_false (!ev_is_active (w)))
		2139	return;
		2140
		2141	{
		2142	int active = ((W)w)->active;
		2143	prepares [active - 1] = prepares [--preparecnt];
		2144	((W)prepares [active - 1])->active = active;
		2145	}
		2146
		2147	ev_stop (EV_A_ (W)w);
		2148	}
		2149
		2150	void
		2151	ev_check_start (EV_P_ ev_check *w)
		2152	{
		2153	if (expect_false (ev_is_active (w)))
		2154	return;
		2155
		2156	ev_start (EV_A_ (W)w, ++checkcnt);
		2157	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2158	checks [checkcnt - 1] = w;
		2159	}
		2160
		2161	void
		2162	ev_check_stop (EV_P_ ev_check *w)
		2163	{
		2164	clear_pending (EV_A_ (W)w);
		2165	if (expect_false (!ev_is_active (w)))
		2166	return;
		2167
		2168	{
		2169	int active = ((W)w)->active;
		2170	checks [active - 1] = checks [--checkcnt];
		2171	((W)checks [active - 1])->active = active;
		2172	}
		2173
		2174	ev_stop (EV_A_ (W)w);
		2175	}
		2176
		2177	#if EV_EMBED_ENABLE
		2178	void noinline
		2179	ev_embed_sweep (EV_P_ ev_embed *w)
		2180	{
		2181	ev_loop (w->loop, EVLOOP_NONBLOCK);
		2182	}
		2183
		2184	static void
		2185	embed_cb (EV_P_ ev_io *io, int revents)
		2186	{
		2187	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2188
		2189	if (ev_cb (w))
		2190	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2191	else
		2192	ev_embed_sweep (loop, w);
		2193	}
		2194
		2195	void
		2196	ev_embed_start (EV_P_ ev_embed *w)
		2197	{
		2198	if (expect_false (ev_is_active (w)))
		2199	return;
		2200
		2201	{
		2202	struct ev_loop *loop = w->loop;
		2203	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2204	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		2205	}
		2206
		2207	ev_set_priority (&w->io, ev_priority (w));
		2208	ev_io_start (EV_A_ &w->io);
		2209
		2210	ev_start (EV_A_ (W)w, 1);
		2211	}
		2212
		2213	void
		2214	ev_embed_stop (EV_P_ ev_embed *w)
		2215	{
		2216	clear_pending (EV_A_ (W)w);
		2217	if (expect_false (!ev_is_active (w)))
		2218	return;
		2219
		2220	ev_io_stop (EV_A_ &w->io);
		2221
		2222	ev_stop (EV_A_ (W)w);
		2223	}
		2224	#endif
		2225
		2226	#if EV_FORK_ENABLE
		2227	void
		2228	ev_fork_start (EV_P_ ev_fork *w)
		2229	{
		2230	if (expect_false (ev_is_active (w)))
		2231	return;
		2232
		2233	ev_start (EV_A_ (W)w, ++forkcnt);
		2234	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2235	forks [forkcnt - 1] = w;
		2236	}
		2237
		2238	void
		2239	ev_fork_stop (EV_P_ ev_fork *w)
		2240	{
		2241	clear_pending (EV_A_ (W)w);
		2242	if (expect_false (!ev_is_active (w)))
		2243	return;
		2244
		2245	{
		2246	int active = ((W)w)->active;
		2247	forks [active - 1] = forks [--forkcnt];
		2248	((W)forks [active - 1])->active = active;
		2249	}
		2250
		2251	ev_stop (EV_A_ (W)w);
		2252	}
		2253	#endif
		2254
1604	/*****************************************************************************/	2255	/*****************************************************************************/
1605		2256
1606	struct ev_once	2257	struct ev_once
1607	{	2258	{
1608	struct ev_io io;	2259	ev_io io;
1609	struct ev_timer to;	2260	ev_timer to;
1610	void (*cb)(int revents, void *arg);	2261	void (*cb)(int revents, void *arg);
1611	void *arg;	2262	void *arg;
1612	};	2263	};
1613		2264
1614	static void	2265	static void
…		…
1623		2274
1624	cb (revents, arg);	2275	cb (revents, arg);
1625	}	2276	}
1626		2277
1627	static void	2278	static void
1628	once_cb_io (EV_P_ struct ev_io *w, int revents)	2279	once_cb_io (EV_P_ ev_io *w, int revents)
1629	{	2280	{
1630	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2281	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1631	}	2282	}
1632		2283
1633	static void	2284	static void
1634	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2285	once_cb_to (EV_P_ ev_timer *w, int revents)
1635	{	2286	{
1636	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2287	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1637	}	2288	}
1638		2289
1639	void	2290	void

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