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Comparing libev/ev.c (file contents):
Revision 1.129 by root, Fri Nov 23 05:00:44 2007 UTC vs.
Revision 1.196 by root, Sat Dec 22 12:43:28 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
…		…
47	# ifndef EV_USE_MONOTONIC	51	# ifndef EV_USE_MONOTONIC
48	# define EV_USE_MONOTONIC 0	52	# define EV_USE_MONOTONIC 0
49	# endif	53	# endif
50	# ifndef EV_USE_REALTIME	54	# ifndef EV_USE_REALTIME
51	# define EV_USE_REALTIME 0	55	# define EV_USE_REALTIME 0
		56	# endif
		57	# endif
		58
		59	# ifndef EV_USE_NANOSLEEP
		60	# if HAVE_NANOSLEEP
		61	# define EV_USE_NANOSLEEP 1
		62	# else
		63	# define EV_USE_NANOSLEEP 0
52	# endif	64	# endif
53	# endif	65	# endif
54		66
55	# ifndef EV_USE_SELECT	67	# ifndef EV_USE_SELECT
56	# if HAVE_SELECT && HAVE_SYS_SELECT_H	68	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
90	# else	102	# else
91	# define EV_USE_PORT 0	103	# define EV_USE_PORT 0
92	# endif	104	# endif
93	# endif	105	# endif
94		106
		107	# ifndef EV_USE_INOTIFY
		108	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		109	# define EV_USE_INOTIFY 1
		110	# else
		111	# define EV_USE_INOTIFY 0
		112	# endif
		113	# endif
		114
95	#endif	115	#endif
96		116
97	#include <math.h>	117	#include <math.h>
98	#include <stdlib.h>	118	#include <stdlib.h>
99	#include <fcntl.h>	119	#include <fcntl.h>
…		…
106	#include <sys/types.h>	126	#include <sys/types.h>
107	#include <time.h>	127	#include <time.h>
108		128
109	#include <signal.h>	129	#include <signal.h>
110		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
		134	# include "ev.h"
		135	#endif
		136
111	#ifndef _WIN32	137	#ifndef _WIN32
112	# include <unistd.h>
113	# include <sys/time.h>	138	# include <sys/time.h>
114	# include <sys/wait.h>	139	# include <sys/wait.h>
		140	# include <unistd.h>
115	#else	141	#else
116	# define WIN32_LEAN_AND_MEAN	142	# define WIN32_LEAN_AND_MEAN
117	# include <windows.h>	143	# include <windows.h>
118	# ifndef EV_SELECT_IS_WINSOCKET	144	# ifndef EV_SELECT_IS_WINSOCKET
119	# define EV_SELECT_IS_WINSOCKET 1	145	# define EV_SELECT_IS_WINSOCKET 1
…		…
128		154
129	#ifndef EV_USE_REALTIME	155	#ifndef EV_USE_REALTIME
130	# define EV_USE_REALTIME 0	156	# define EV_USE_REALTIME 0
131	#endif	157	#endif
132		158
		159	#ifndef EV_USE_NANOSLEEP
		160	# define EV_USE_NANOSLEEP 0
		161	#endif
		162
133	#ifndef EV_USE_SELECT	163	#ifndef EV_USE_SELECT
134	# define EV_USE_SELECT 1	164	# define EV_USE_SELECT 1
135	#endif	165	#endif
136		166
137	#ifndef EV_USE_POLL	167	#ifndef EV_USE_POLL
…		…
152		182
153	#ifndef EV_USE_PORT	183	#ifndef EV_USE_PORT
154	# define EV_USE_PORT 0	184	# define EV_USE_PORT 0
155	#endif	185	#endif
156		186
		187	#ifndef EV_USE_INOTIFY
		188	# define EV_USE_INOTIFY 0
		189	#endif
		190
		191	#ifndef EV_PID_HASHSIZE
		192	# if EV_MINIMAL
		193	# define EV_PID_HASHSIZE 1
		194	# else
		195	# define EV_PID_HASHSIZE 16
		196	# endif
		197	#endif
		198
		199	#ifndef EV_INOTIFY_HASHSIZE
		200	# if EV_MINIMAL
		201	# define EV_INOTIFY_HASHSIZE 1
		202	# else
		203	# define EV_INOTIFY_HASHSIZE 16
		204	# endif
		205	#endif
		206
157	/**/	207	/**/
158		208
159	#ifndef CLOCK_MONOTONIC	209	#ifndef CLOCK_MONOTONIC
160	# undef EV_USE_MONOTONIC	210	# undef EV_USE_MONOTONIC
161	# define EV_USE_MONOTONIC 0	211	# define EV_USE_MONOTONIC 0
…		…
164	#ifndef CLOCK_REALTIME	214	#ifndef CLOCK_REALTIME
165	# undef EV_USE_REALTIME	215	# undef EV_USE_REALTIME
166	# define EV_USE_REALTIME 0	216	# define EV_USE_REALTIME 0
167	#endif	217	#endif
168		218
		219	#if !EV_STAT_ENABLE
		220	# undef EV_USE_INOTIFY
		221	# define EV_USE_INOTIFY 0
		222	#endif
		223
		224	#if !EV_USE_NANOSLEEP
		225	# ifndef _WIN32
		226	# include <sys/select.h>
		227	# endif
		228	#endif
		229
		230	#if EV_USE_INOTIFY
		231	# include <sys/inotify.h>
		232	#endif
		233
169	#if EV_SELECT_IS_WINSOCKET	234	#if EV_SELECT_IS_WINSOCKET
170	# include <winsock.h>	235	# include <winsock.h>
171	#endif	236	#endif
172		237
173	/**/	238	/**/
174		239
		240	/*
		241	* This is used to avoid floating point rounding problems.
		242	* It is added to ev_rt_now when scheduling periodics
		243	* to ensure progress, time-wise, even when rounding
		244	* errors are against us.
		245	* This value is good at least till the year 4000.
		246	* Better solutions welcome.
		247	*/
		248	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
		249
175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	250	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	251	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
178	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	252	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
179		253
180	#ifdef EV_H
181	# include EV_H
182	#else
183	# include "ev.h"
184	#endif
185
186	#if __GNUC__ >= 3	254	#if __GNUC__ >= 4
187	# define expect(expr,value) __builtin_expect ((expr),(value))	255	# define expect(expr,value) __builtin_expect ((expr),(value))
188	# define inline static inline	256	# define noinline __attribute__ ((noinline))
189	#else	257	#else
190	# define expect(expr,value) (expr)	258	# define expect(expr,value) (expr)
191	# define inline static	259	# define noinline
		260	# if __STDC_VERSION__ < 199901L
		261	# define inline
		262	# endif
192	#endif	263	#endif
193		264
194	#define expect_false(expr) expect ((expr) != 0, 0)	265	#define expect_false(expr) expect ((expr) != 0, 0)
195	#define expect_true(expr) expect ((expr) != 0, 1)	266	#define expect_true(expr) expect ((expr) != 0, 1)
		267	#define inline_size static inline
		268
		269	#if EV_MINIMAL
		270	# define inline_speed static noinline
		271	#else
		272	# define inline_speed static inline
		273	#endif
196		274
197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	275	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	276	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
199		277
200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	278	#define EMPTY /* required for microsofts broken pseudo-c compiler */
201	#define EMPTY2(a,b) /* used to suppress some warnings */	279	#define EMPTY2(a,b) /* used to suppress some warnings */
202		280
203	typedef struct ev_watcher *W;	281	typedef ev_watcher *W;
204	typedef struct ev_watcher_list *WL;	282	typedef ev_watcher_list *WL;
205	typedef struct ev_watcher_time *WT;	283	typedef ev_watcher_time *WT;
206		284
		285	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		286	/* giving it a reasonably high chance of working on typical architetcures */
207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	287	static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
208		288
209	#ifdef _WIN32	289	#ifdef _WIN32
210	# include "ev_win32.c"	290	# include "ev_win32.c"
211	#endif	291	#endif
212		292
213	/*****************************************************************************/	293	/*****************************************************************************/
214		294
215	static void (*syserr_cb)(const char *msg);	295	static void (*syserr_cb)(const char *msg);
216		296
		297	void
217	void ev_set_syserr_cb (void (*cb)(const char *msg))	298	ev_set_syserr_cb (void (*cb)(const char *msg))
218	{	299	{
219	syserr_cb = cb;	300	syserr_cb = cb;
220	}	301	}
221		302
222	static void	303	static void noinline
223	syserr (const char *msg)	304	syserr (const char *msg)
224	{	305	{
225	if (!msg)	306	if (!msg)
226	msg = "(libev) system error";	307	msg = "(libev) system error";
227		308
…		…
234	}	315	}
235	}	316	}
236		317
237	static void *(*alloc)(void *ptr, long size);	318	static void *(*alloc)(void *ptr, long size);
238		319
		320	void
239	void ev_set_allocator (void *(*cb)(void *ptr, long size))	321	ev_set_allocator (void *(*cb)(void *ptr, long size))
240	{	322	{
241	alloc = cb;	323	alloc = cb;
242	}	324	}
243		325
244	static void *	326	inline_speed void *
245	ev_realloc (void *ptr, long size)	327	ev_realloc (void *ptr, long size)
246	{	328	{
247	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	329	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
248		330
249	if (!ptr && size)	331	if (!ptr && size)
…		…
273	typedef struct	355	typedef struct
274	{	356	{
275	W w;	357	W w;
276	int events;	358	int events;
277	} ANPENDING;	359	} ANPENDING;
		360
		361	#if EV_USE_INOTIFY
		362	typedef struct
		363	{
		364	WL head;
		365	} ANFS;
		366	#endif
278		367
279	#if EV_MULTIPLICITY	368	#if EV_MULTIPLICITY
280		369
281	struct ev_loop	370	struct ev_loop
282	{	371	{
…		…
316	gettimeofday (&tv, 0);	405	gettimeofday (&tv, 0);
317	return tv.tv_sec + tv.tv_usec * 1e-6;	406	return tv.tv_sec + tv.tv_usec * 1e-6;
318	#endif	407	#endif
319	}	408	}
320		409
321	inline ev_tstamp	410	ev_tstamp inline_size
322	get_clock (void)	411	get_clock (void)
323	{	412	{
324	#if EV_USE_MONOTONIC	413	#if EV_USE_MONOTONIC
325	if (expect_true (have_monotonic))	414	if (expect_true (have_monotonic))
326	{	415	{
…		…
339	{	428	{
340	return ev_rt_now;	429	return ev_rt_now;
341	}	430	}
342	#endif	431	#endif
343		432
344	#define array_roundsize(type,n) (((n) | 4) & ~3)	433	void
		434	ev_sleep (ev_tstamp delay)
		435	{
		436	if (delay > 0.)
		437	{
		438	#if EV_USE_NANOSLEEP
		439	struct timespec ts;
		440
		441	ts.tv_sec = (time_t)delay;
		442	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		443
		444	nanosleep (&ts, 0);
		445	#elif defined(_WIN32)
		446	Sleep (delay * 1e3);
		447	#else
		448	struct timeval tv;
		449
		450	tv.tv_sec = (time_t)delay;
		451	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		452
		453	select (0, 0, 0, 0, &tv);
		454	#endif
		455	}
		456	}
		457
		458	/*****************************************************************************/
		459
		460	int inline_size
		461	array_nextsize (int elem, int cur, int cnt)
		462	{
		463	int ncur = cur + 1;
		464
		465	do
		466	ncur <<= 1;
		467	while (cnt > ncur);
		468
		469	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		470	if (elem * ncur > 4096)
		471	{
		472	ncur *= elem;
		473	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		474	ncur = ncur - sizeof (void *) * 4;
		475	ncur /= elem;
		476	}
		477
		478	return ncur;
		479	}
		480
		481	static noinline void *
		482	array_realloc (int elem, void *base, int *cur, int cnt)
		483	{
		484	*cur = array_nextsize (elem, *cur, cnt);
		485	return ev_realloc (base, elem * *cur);
		486	}
345		487
346	#define array_needsize(type,base,cur,cnt,init) \	488	#define array_needsize(type,base,cur,cnt,init) \
347	if (expect_false ((cnt) > cur)) \	489	if (expect_false ((cnt) > (cur))) \
348	{ \	490	{ \
349	int newcnt = cur; \	491	int ocur_ = (cur); \
350	do \	492	(base) = (type *)array_realloc \
351	{ \	493	(sizeof (type), (base), &(cur), (cnt)); \
352	newcnt = array_roundsize (type, newcnt << 1); \	494	init ((base) + (ocur_), (cur) - ocur_); \
353	} \
354	while ((cnt) > newcnt); \
355	\
356	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
357	init (base + cur, newcnt - cur); \
358	cur = newcnt; \
359	}	495	}
360		496
		497	#if 0
361	#define array_slim(type,stem) \	498	#define array_slim(type,stem) \
362	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	499	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
363	{ \	500	{ \
364	stem ## max = array_roundsize (stem ## cnt >> 1); \	501	stem ## max = array_roundsize (stem ## cnt >> 1); \
365	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	502	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	503	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
367	}	504	}
		505	#endif
368		506
369	#define array_free(stem, idx) \	507	#define array_free(stem, idx) \
370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	508	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
371		509
372	/*****************************************************************************/	510	/*****************************************************************************/
373		511
374	static void	512	void noinline
		513	ev_feed_event (EV_P_ void *w, int revents)
		514	{
		515	W w_ = (W)w;
		516	int pri = ABSPRI (w_);
		517
		518	if (expect_false (w_->pending))
		519	pendings [pri][w_->pending - 1].events |= revents;
		520	else
		521	{
		522	w_->pending = ++pendingcnt [pri];
		523	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		524	pendings [pri][w_->pending - 1].w = w_;
		525	pendings [pri][w_->pending - 1].events = revents;
		526	}
		527	}
		528
		529	void inline_speed
		530	queue_events (EV_P_ W *events, int eventcnt, int type)
		531	{
		532	int i;
		533
		534	for (i = 0; i < eventcnt; ++i)
		535	ev_feed_event (EV_A_ events [i], type);
		536	}
		537
		538	/*****************************************************************************/
		539
		540	void inline_size
375	anfds_init (ANFD *base, int count)	541	anfds_init (ANFD *base, int count)
376	{	542	{
377	while (count--)	543	while (count--)
378	{	544	{
379	base->head = 0;	545	base->head = 0;
…		…
382		548
383	++base;	549	++base;
384	}	550	}
385	}	551	}
386		552
387	void	553	void inline_speed
388	ev_feed_event (EV_P_ void *w, int revents)
389	{
390	W w_ = (W)w;
391
392	if (expect_false (w_->pending))
393	{
394	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
395	return;
396	}
397
398	w_->pending = ++pendingcnt [ABSPRI (w_)];
399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
402	}
403
404	static void
405	queue_events (EV_P_ W *events, int eventcnt, int type)
406	{
407	int i;
408
409	for (i = 0; i < eventcnt; ++i)
410	ev_feed_event (EV_A_ events [i], type);
411	}
412
413	inline void
414	fd_event (EV_P_ int fd, int revents)	554	fd_event (EV_P_ int fd, int revents)
415	{	555	{
416	ANFD *anfd = anfds + fd;	556	ANFD *anfd = anfds + fd;
417	struct ev_io *w;	557	ev_io *w;
418		558
419	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	559	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
420	{	560	{
421	int ev = w->events & revents;	561	int ev = w->events & revents;
422		562
423	if (ev)	563	if (ev)
424	ev_feed_event (EV_A_ (W)w, ev);	564	ev_feed_event (EV_A_ (W)w, ev);
…		…
426	}	566	}
427		567
428	void	568	void
429	ev_feed_fd_event (EV_P_ int fd, int revents)	569	ev_feed_fd_event (EV_P_ int fd, int revents)
430	{	570	{
		571	if (fd >= 0 && fd < anfdmax)
431	fd_event (EV_A_ fd, revents);	572	fd_event (EV_A_ fd, revents);
432	}	573	}
433		574
434	/*****************************************************************************/	575	void inline_size
435
436	inline void
437	fd_reify (EV_P)	576	fd_reify (EV_P)
438	{	577	{
439	int i;	578	int i;
440		579
441	for (i = 0; i < fdchangecnt; ++i)	580	for (i = 0; i < fdchangecnt; ++i)
442	{	581	{
443	int fd = fdchanges [i];	582	int fd = fdchanges [i];
444	ANFD *anfd = anfds + fd;	583	ANFD *anfd = anfds + fd;
445	struct ev_io *w;	584	ev_io *w;
446		585
447	int events = 0;	586	unsigned char events = 0;
448		587
449	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	588	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
450	events |= w->events;	589	events |= (unsigned char)w->events;
451		590
452	#if EV_SELECT_IS_WINSOCKET	591	#if EV_SELECT_IS_WINSOCKET
453	if (events)	592	if (events)
454	{	593	{
455	unsigned long argp;	594	unsigned long argp;
456	anfd->handle = _get_osfhandle (fd);	595	anfd->handle = _get_osfhandle (fd);
457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	596	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
458	}	597	}
459	#endif	598	#endif
460		599
		600	{
		601	unsigned char o_events = anfd->events;
		602	unsigned char o_reify = anfd->reify;
		603
461	anfd->reify = 0;	604	anfd->reify = 0;
462
463	method_modify (EV_A_ fd, anfd->events, events);
464	anfd->events = events;	605	anfd->events = events;
		606
		607	if (o_events != events || o_reify & EV_IOFDSET)
		608	backend_modify (EV_A_ fd, o_events, events);
		609	}
465	}	610	}
466		611
467	fdchangecnt = 0;	612	fdchangecnt = 0;
468	}	613	}
469		614
470	static void	615	void inline_size
471	fd_change (EV_P_ int fd)	616	fd_change (EV_P_ int fd, int flags)
472	{	617	{
473	if (expect_false (anfds [fd].reify))	618	unsigned char reify = anfds [fd].reify;
474	return;
475
476	anfds [fd].reify = 1;	619	anfds [fd].reify |= flags;
477		620
		621	if (expect_true (!reify))
		622	{
478	++fdchangecnt;	623	++fdchangecnt;
479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	624	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
480	fdchanges [fdchangecnt - 1] = fd;	625	fdchanges [fdchangecnt - 1] = fd;
		626	}
481	}	627	}
482		628
483	static void	629	void inline_speed
484	fd_kill (EV_P_ int fd)	630	fd_kill (EV_P_ int fd)
485	{	631	{
486	struct ev_io *w;	632	ev_io *w;
487		633
488	while ((w = (struct ev_io *)anfds [fd].head))	634	while ((w = (ev_io *)anfds [fd].head))
489	{	635	{
490	ev_io_stop (EV_A_ w);	636	ev_io_stop (EV_A_ w);
491	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	637	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
492	}	638	}
493	}	639	}
494		640
495	inline int	641	int inline_size
496	fd_valid (int fd)	642	fd_valid (int fd)
497	{	643	{
498	#ifdef _WIN32	644	#ifdef _WIN32
499	return _get_osfhandle (fd) != -1;	645	return _get_osfhandle (fd) != -1;
500	#else	646	#else
501	return fcntl (fd, F_GETFD) != -1;	647	return fcntl (fd, F_GETFD) != -1;
502	#endif	648	#endif
503	}	649	}
504		650
505	/* called on EBADF to verify fds */	651	/* called on EBADF to verify fds */
506	static void	652	static void noinline
507	fd_ebadf (EV_P)	653	fd_ebadf (EV_P)
508	{	654	{
509	int fd;	655	int fd;
510		656
511	for (fd = 0; fd < anfdmax; ++fd)	657	for (fd = 0; fd < anfdmax; ++fd)
…		…
513	if (!fd_valid (fd) == -1 && errno == EBADF)	659	if (!fd_valid (fd) == -1 && errno == EBADF)
514	fd_kill (EV_A_ fd);	660	fd_kill (EV_A_ fd);
515	}	661	}
516		662
517	/* called on ENOMEM in select/poll to kill some fds and retry */	663	/* called on ENOMEM in select/poll to kill some fds and retry */
518	static void	664	static void noinline
519	fd_enomem (EV_P)	665	fd_enomem (EV_P)
520	{	666	{
521	int fd;	667	int fd;
522		668
523	for (fd = anfdmax; fd--; )	669	for (fd = anfdmax; fd--; )
…		…
526	fd_kill (EV_A_ fd);	672	fd_kill (EV_A_ fd);
527	return;	673	return;
528	}	674	}
529	}	675	}
530		676
531	/* usually called after fork if method needs to re-arm all fds from scratch */	677	/* usually called after fork if backend needs to re-arm all fds from scratch */
532	static void	678	static void noinline
533	fd_rearm_all (EV_P)	679	fd_rearm_all (EV_P)
534	{	680	{
535	int fd;	681	int fd;
536		682
537	/* this should be highly optimised to not do anything but set a flag */
538	for (fd = 0; fd < anfdmax; ++fd)	683	for (fd = 0; fd < anfdmax; ++fd)
539	if (anfds [fd].events)	684	if (anfds [fd].events)
540	{	685	{
541	anfds [fd].events = 0;	686	anfds [fd].events = 0;
542	fd_change (EV_A_ fd);	687	fd_change (EV_A_ fd, EV_IOFDSET | 1);
543	}	688	}
544	}	689	}
545		690
546	/*****************************************************************************/	691	/*****************************************************************************/
547		692
548	static void	693	void inline_speed
549	upheap (WT *heap, int k)	694	upheap (WT *heap, int k)
550	{	695	{
551	WT w = heap [k];	696	WT w = heap [k];
552		697
553	while (k && heap [k >> 1]->at > w->at)	698	while (k)
554	{	699	{
		700	int p = (k - 1) >> 1;
		701
		702	if (heap [p]->at <= w->at)
		703	break;
		704
555	heap [k] = heap [k >> 1];	705	heap [k] = heap [p];
556	((W)heap [k])->active = k + 1;	706	((W)heap [k])->active = k + 1;
557	k >>= 1;	707	k = p;
558	}	708	}
559		709
560	heap [k] = w;	710	heap [k] = w;
561	((W)heap [k])->active = k + 1;	711	((W)heap [k])->active = k + 1;
562
563	}	712	}
564		713
565	static void	714	void inline_speed
566	downheap (WT *heap, int N, int k)	715	downheap (WT *heap, int N, int k)
567	{	716	{
568	WT w = heap [k];	717	WT w = heap [k];
569		718
570	while (k < (N >> 1))	719	for (;;)
571	{	720	{
572	int j = k << 1;	721	int c = (k << 1) + 1;
573		722
574	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	723	if (c >= N)
575	++j;
576
577	if (w->at <= heap [j]->at)
578	break;	724	break;
579		725
		726	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		727	? 1 : 0;
		728
		729	if (w->at <= heap [c]->at)
		730	break;
		731
580	heap [k] = heap [j];	732	heap [k] = heap [c];
581	((W)heap [k])->active = k + 1;	733	((W)heap [k])->active = k + 1;
		734
582	k = j;	735	k = c;
583	}	736	}
584		737
585	heap [k] = w;	738	heap [k] = w;
586	((W)heap [k])->active = k + 1;	739	((W)heap [k])->active = k + 1;
587	}	740	}
588		741
589	inline void	742	void inline_size
590	adjustheap (WT *heap, int N, int k)	743	adjustheap (WT *heap, int N, int k)
591	{	744	{
592	upheap (heap, k);	745	upheap (heap, k);
593	downheap (heap, N, k);	746	downheap (heap, N, k);
594	}	747	}
…		…
604	static ANSIG *signals;	757	static ANSIG *signals;
605	static int signalmax;	758	static int signalmax;
606		759
607	static int sigpipe [2];	760	static int sigpipe [2];
608	static sig_atomic_t volatile gotsig;	761	static sig_atomic_t volatile gotsig;
609	static struct ev_io sigev;	762	static ev_io sigev;
610		763
611	static void	764	void inline_size
612	signals_init (ANSIG *base, int count)	765	signals_init (ANSIG *base, int count)
613	{	766	{
614	while (count--)	767	while (count--)
615	{	768	{
616	base->head = 0;	769	base->head = 0;
…		…
636	write (sigpipe [1], &signum, 1);	789	write (sigpipe [1], &signum, 1);
637	errno = old_errno;	790	errno = old_errno;
638	}	791	}
639	}	792	}
640		793
641	void	794	void noinline
642	ev_feed_signal_event (EV_P_ int signum)	795	ev_feed_signal_event (EV_P_ int signum)
643	{	796	{
644	WL w;	797	WL w;
645		798
646	#if EV_MULTIPLICITY	799	#if EV_MULTIPLICITY
…		…
657	for (w = signals [signum].head; w; w = w->next)	810	for (w = signals [signum].head; w; w = w->next)
658	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	811	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
659	}	812	}
660		813
661	static void	814	static void
662	sigcb (EV_P_ struct ev_io *iow, int revents)	815	sigcb (EV_P_ ev_io *iow, int revents)
663	{	816	{
664	int signum;	817	int signum;
665		818
666	read (sigpipe [0], &revents, 1);	819	read (sigpipe [0], &revents, 1);
667	gotsig = 0;	820	gotsig = 0;
…		…
669	for (signum = signalmax; signum--; )	822	for (signum = signalmax; signum--; )
670	if (signals [signum].gotsig)	823	if (signals [signum].gotsig)
671	ev_feed_signal_event (EV_A_ signum + 1);	824	ev_feed_signal_event (EV_A_ signum + 1);
672	}	825	}
673		826
674	static void	827	void inline_speed
675	fd_intern (int fd)	828	fd_intern (int fd)
676	{	829	{
677	#ifdef _WIN32	830	#ifdef _WIN32
678	int arg = 1;	831	int arg = 1;
679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	832	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
681	fcntl (fd, F_SETFD, FD_CLOEXEC);	834	fcntl (fd, F_SETFD, FD_CLOEXEC);
682	fcntl (fd, F_SETFL, O_NONBLOCK);	835	fcntl (fd, F_SETFL, O_NONBLOCK);
683	#endif	836	#endif
684	}	837	}
685		838
686	static void	839	static void noinline
687	siginit (EV_P)	840	siginit (EV_P)
688	{	841	{
689	fd_intern (sigpipe [0]);	842	fd_intern (sigpipe [0]);
690	fd_intern (sigpipe [1]);	843	fd_intern (sigpipe [1]);
691		844
…		…
694	ev_unref (EV_A); /* child watcher should not keep loop alive */	847	ev_unref (EV_A); /* child watcher should not keep loop alive */
695	}	848	}
696		849
697	/*****************************************************************************/	850	/*****************************************************************************/
698		851
699	static struct ev_child *childs [PID_HASHSIZE];	852	static WL childs [EV_PID_HASHSIZE];
700		853
701	#ifndef _WIN32	854	#ifndef _WIN32
702		855
703	static struct ev_signal childev;	856	static ev_signal childev;
		857
		858	void inline_speed
		859	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		860	{
		861	ev_child *w;
		862
		863	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		864	if (w->pid == pid || !w->pid)
		865	{
		866	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		867	w->rpid = pid;
		868	w->rstatus = status;
		869	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		870	}
		871	}
704		872
705	#ifndef WCONTINUED	873	#ifndef WCONTINUED
706	# define WCONTINUED 0	874	# define WCONTINUED 0
707	#endif	875	#endif
708		876
709	static void	877	static void
710	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
711	{
712	struct ev_child *w;
713
714	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
715	if (w->pid == pid || !w->pid)
716	{
717	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
718	w->rpid = pid;
719	w->rstatus = status;
720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
721	}
722	}
723
724	static void
725	childcb (EV_P_ struct ev_signal *sw, int revents)	878	childcb (EV_P_ ev_signal *sw, int revents)
726	{	879	{
727	int pid, status;	880	int pid, status;
728		881
		882	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
729	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	883	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
730	{	884	if (!WCONTINUED
		885	|| errno != EINVAL
		886	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		887	return;
		888
731	/* make sure we are called again until all childs have been reaped */	889	/* make sure we are called again until all childs have been reaped */
		890	/* we need to do it this way so that the callback gets called before we continue */
732	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	891	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
733		892
734	child_reap (EV_A_ sw, pid, pid, status);	893	child_reap (EV_A_ sw, pid, pid, status);
		894	if (EV_PID_HASHSIZE > 1)
735	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	895	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
736	}
737	}	896	}
738		897
739	#endif	898	#endif
740		899
741	/*****************************************************************************/	900	/*****************************************************************************/
…		…
767	{	926	{
768	return EV_VERSION_MINOR;	927	return EV_VERSION_MINOR;
769	}	928	}
770		929
771	/* return true if we are running with elevated privileges and should ignore env variables */	930	/* return true if we are running with elevated privileges and should ignore env variables */
772	static int	931	int inline_size
773	enable_secure (void)	932	enable_secure (void)
774	{	933	{
775	#ifdef _WIN32	934	#ifdef _WIN32
776	return 0;	935	return 0;
777	#else	936	#else
…		…
781	}	940	}
782		941
783	unsigned int	942	unsigned int
784	ev_supported_backends (void)	943	ev_supported_backends (void)
785	{	944	{
786	}
787
788	unsigned int
789	ev_recommended_backends (void)
790	{
791	unsigned int flags;	945	unsigned int flags = 0;
792		946
793	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	947	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
794	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	948	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
795	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;	949	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
796	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;	950	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
…		…
798		952
799	return flags;	953	return flags;
800	}	954	}
801		955
802	unsigned int	956	unsigned int
803	ev_backend (EV_P)	957	ev_recommended_backends (void)
804	{	958	{
805	unsigned int flags = ev_recommended_backends ();	959	unsigned int flags = ev_supported_backends ();
806		960
807	#ifndef __NetBSD__	961	#ifndef __NetBSD__
808	/* kqueue is borked on everything but netbsd apparently */	962	/* kqueue is borked on everything but netbsd apparently */
809	/* it usually doesn't work correctly on anything but sockets and pipes */	963	/* it usually doesn't work correctly on anything but sockets and pipes */
810	flags &= ~EVBACKEND_KQUEUE;	964	flags &= ~EVBACKEND_KQUEUE;
…		…
815	#endif	969	#endif
816		970
817	return flags;	971	return flags;
818	}	972	}
819		973
820	static void	974	unsigned int
		975	ev_embeddable_backends (void)
		976	{
		977	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
		978
		979	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		980	/* please fix it and tell me how to detect the fix */
		981	flags &= ~EVBACKEND_EPOLL;
		982
		983	#ifdef __APPLE__
		984	/* is there anything thats not broken on darwin? */
		985	flags &= ~EVBACKEND_KQUEUE;
		986	#endif
		987
		988	return flags;
		989	}
		990
		991	unsigned int
		992	ev_backend (EV_P)
		993	{
		994	return backend;
		995	}
		996
		997	unsigned int
		998	ev_loop_count (EV_P)
		999	{
		1000	return loop_count;
		1001	}
		1002
		1003	void
		1004	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1005	{
		1006	io_blocktime = interval;
		1007	}
		1008
		1009	void
		1010	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1011	{
		1012	timeout_blocktime = interval;
		1013	}
		1014
		1015	static void noinline
821	loop_init (EV_P_ unsigned int flags)	1016	loop_init (EV_P_ unsigned int flags)
822	{	1017	{
823	if (!method)	1018	if (!backend)
824	{	1019	{
825	#if EV_USE_MONOTONIC	1020	#if EV_USE_MONOTONIC
826	{	1021	{
827	struct timespec ts;	1022	struct timespec ts;
828	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1023	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
833	ev_rt_now = ev_time ();	1028	ev_rt_now = ev_time ();
834	mn_now = get_clock ();	1029	mn_now = get_clock ();
835	now_floor = mn_now;	1030	now_floor = mn_now;
836	rtmn_diff = ev_rt_now - mn_now;	1031	rtmn_diff = ev_rt_now - mn_now;
837		1032
		1033	io_blocktime = 0.;
		1034	timeout_blocktime = 0.;
		1035
		1036	/* pid check not overridable via env */
		1037	#ifndef _WIN32
		1038	if (flags & EVFLAG_FORKCHECK)
		1039	curpid = getpid ();
		1040	#endif
		1041
838	if (!(flags & EVFLAG_NOENV)	1042	if (!(flags & EVFLAG_NOENV)
839	&& !enable_secure ()	1043	&& !enable_secure ()
840	&& getenv ("LIBEV_FLAGS"))	1044	&& getenv ("LIBEV_FLAGS"))
841	flags = atoi (getenv ("LIBEV_FLAGS"));	1045	flags = atoi (getenv ("LIBEV_FLAGS"));
842		1046
843	if (!(flags & 0x0000ffffUL))	1047	if (!(flags & 0x0000ffffUL))
844	flags |= ev_recommended_backends ();	1048	flags |= ev_recommended_backends ();
845		1049
846	method = 0;	1050	backend = 0;
		1051	backend_fd = -1;
		1052	#if EV_USE_INOTIFY
		1053	fs_fd = -2;
		1054	#endif
		1055
847	#if EV_USE_PORT	1056	#if EV_USE_PORT
848	if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags);	1057	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
849	#endif	1058	#endif
850	#if EV_USE_KQUEUE	1059	#if EV_USE_KQUEUE
851	if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags);	1060	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
852	#endif	1061	#endif
853	#if EV_USE_EPOLL	1062	#if EV_USE_EPOLL
854	if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags);	1063	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
855	#endif	1064	#endif
856	#if EV_USE_POLL	1065	#if EV_USE_POLL
857	if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags);	1066	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
858	#endif	1067	#endif
859	#if EV_USE_SELECT	1068	#if EV_USE_SELECT
860	if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags);	1069	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
861	#endif	1070	#endif
862		1071
863	ev_init (&sigev, sigcb);	1072	ev_init (&sigev, sigcb);
864	ev_set_priority (&sigev, EV_MAXPRI);	1073	ev_set_priority (&sigev, EV_MAXPRI);
865	}	1074	}
866	}	1075	}
867		1076
868	static void	1077	static void noinline
869	loop_destroy (EV_P)	1078	loop_destroy (EV_P)
870	{	1079	{
871	int i;	1080	int i;
872		1081
		1082	#if EV_USE_INOTIFY
		1083	if (fs_fd >= 0)
		1084	close (fs_fd);
		1085	#endif
		1086
		1087	if (backend_fd >= 0)
		1088	close (backend_fd);
		1089
873	#if EV_USE_PORT	1090	#if EV_USE_PORT
874	if (method == EVBACKEND_PORT ) port_destroy (EV_A);	1091	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
875	#endif	1092	#endif
876	#if EV_USE_KQUEUE	1093	#if EV_USE_KQUEUE
877	if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1094	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
878	#endif	1095	#endif
879	#if EV_USE_EPOLL	1096	#if EV_USE_EPOLL
880	if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A);	1097	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
881	#endif	1098	#endif
882	#if EV_USE_POLL	1099	#if EV_USE_POLL
883	if (method == EVBACKEND_POLL ) poll_destroy (EV_A);	1100	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
884	#endif	1101	#endif
885	#if EV_USE_SELECT	1102	#if EV_USE_SELECT
886	if (method == EVBACKEND_SELECT) select_destroy (EV_A);	1103	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
887	#endif	1104	#endif
888		1105
889	for (i = NUMPRI; i--; )	1106	for (i = NUMPRI; i--; )
		1107	{
890	array_free (pending, [i]);	1108	array_free (pending, [i]);
		1109	#if EV_IDLE_ENABLE
		1110	array_free (idle, [i]);
		1111	#endif
		1112	}
		1113
		1114	ev_free (anfds); anfdmax = 0;
891		1115
892	/* have to use the microsoft-never-gets-it-right macro */	1116	/* have to use the microsoft-never-gets-it-right macro */
893	array_free (fdchange, EMPTY0);	1117	array_free (fdchange, EMPTY);
894	array_free (timer, EMPTY0);	1118	array_free (timer, EMPTY);
895	#if EV_PERIODICS	1119	#if EV_PERIODIC_ENABLE
896	array_free (periodic, EMPTY0);	1120	array_free (periodic, EMPTY);
897	#endif	1121	#endif
		1122	#if EV_FORK_ENABLE
898	array_free (idle, EMPTY0);	1123	array_free (fork, EMPTY);
		1124	#endif
899	array_free (prepare, EMPTY0);	1125	array_free (prepare, EMPTY);
900	array_free (check, EMPTY0);	1126	array_free (check, EMPTY);
901		1127
902	method = 0;	1128	backend = 0;
903	}	1129	}
904		1130
905	static void	1131	void inline_size infy_fork (EV_P);
		1132
		1133	void inline_size
906	loop_fork (EV_P)	1134	loop_fork (EV_P)
907	{	1135	{
908	#if EV_USE_PORT	1136	#if EV_USE_PORT
909	if (method == EVBACKEND_PORT ) port_fork (EV_A);	1137	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
910	#endif	1138	#endif
911	#if EV_USE_KQUEUE	1139	#if EV_USE_KQUEUE
912	if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1140	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
913	#endif	1141	#endif
914	#if EV_USE_EPOLL	1142	#if EV_USE_EPOLL
915	if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1143	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1144	#endif
		1145	#if EV_USE_INOTIFY
		1146	infy_fork (EV_A);
916	#endif	1147	#endif
917		1148
918	if (ev_is_active (&sigev))	1149	if (ev_is_active (&sigev))
919	{	1150	{
920	/* default loop */	1151	/* default loop */
…		…
941		1172
942	memset (loop, 0, sizeof (struct ev_loop));	1173	memset (loop, 0, sizeof (struct ev_loop));
943		1174
944	loop_init (EV_A_ flags);	1175	loop_init (EV_A_ flags);
945		1176
946	if (ev_method (EV_A))	1177	if (ev_backend (EV_A))
947	return loop;	1178	return loop;
948		1179
949	return 0;	1180	return 0;
950	}	1181	}
951		1182
…		…
984	ev_default_loop_ptr = 1;	1215	ev_default_loop_ptr = 1;
985	#endif	1216	#endif
986		1217
987	loop_init (EV_A_ flags);	1218	loop_init (EV_A_ flags);
988		1219
989	if (ev_method (EV_A))	1220	if (ev_backend (EV_A))
990	{	1221	{
991	siginit (EV_A);	1222	siginit (EV_A);
992		1223
993	#ifndef _WIN32	1224	#ifndef _WIN32
994	ev_signal_init (&childev, childcb, SIGCHLD);	1225	ev_signal_init (&childev, childcb, SIGCHLD);
…		…
1030	{	1261	{
1031	#if EV_MULTIPLICITY	1262	#if EV_MULTIPLICITY
1032	struct ev_loop *loop = ev_default_loop_ptr;	1263	struct ev_loop *loop = ev_default_loop_ptr;
1033	#endif	1264	#endif
1034		1265
1035	if (method)	1266	if (backend)
1036	postfork = 1;	1267	postfork = 1;
1037	}	1268	}
1038		1269
1039	/*****************************************************************************/	1270	/*****************************************************************************/
1040		1271
1041	static int	1272	void
1042	any_pending (EV_P)	1273	ev_invoke (EV_P_ void *w, int revents)
1043	{	1274	{
1044	int pri;	1275	EV_CB_INVOKE ((W)w, revents);
1045
1046	for (pri = NUMPRI; pri--; )
1047	if (pendingcnt [pri])
1048	return 1;
1049
1050	return 0;
1051	}	1276	}
1052		1277
1053	inline void	1278	void inline_speed
1054	call_pending (EV_P)	1279	call_pending (EV_P)
1055	{	1280	{
1056	int pri;	1281	int pri;
1057		1282
1058	for (pri = NUMPRI; pri--; )	1283	for (pri = NUMPRI; pri--; )
…		…
1060	{	1285	{
1061	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1286	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1062		1287
1063	if (expect_true (p->w))	1288	if (expect_true (p->w))
1064	{	1289	{
		1290	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1291
1065	p->w->pending = 0;	1292	p->w->pending = 0;
1066	EV_CB_INVOKE (p->w, p->events);	1293	EV_CB_INVOKE (p->w, p->events);
1067	}	1294	}
1068	}	1295	}
1069	}	1296	}
1070		1297
1071	inline void	1298	void inline_size
1072	timers_reify (EV_P)	1299	timers_reify (EV_P)
1073	{	1300	{
1074	while (timercnt && ((WT)timers [0])->at <= mn_now)	1301	while (timercnt && ((WT)timers [0])->at <= mn_now)
1075	{	1302	{
1076	struct ev_timer *w = timers [0];	1303	ev_timer *w = (ev_timer *)timers [0];
1077		1304
1078	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1305	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1079		1306
1080	/* first reschedule or stop timer */	1307	/* first reschedule or stop timer */
1081	if (w->repeat)	1308	if (w->repeat)
1082	{	1309	{
1083	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1310	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1084		1311
1085	((WT)w)->at += w->repeat;	1312	((WT)w)->at += w->repeat;
1086	if (((WT)w)->at < mn_now)	1313	if (((WT)w)->at < mn_now)
1087	((WT)w)->at = mn_now;	1314	((WT)w)->at = mn_now;
1088		1315
1089	downheap ((WT *)timers, timercnt, 0);	1316	downheap (timers, timercnt, 0);
1090	}	1317	}
1091	else	1318	else
1092	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1319	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1093		1320
1094	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1321	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1095	}	1322	}
1096	}	1323	}
1097		1324
1098	#if EV_PERIODICS	1325	#if EV_PERIODIC_ENABLE
1099	inline void	1326	void inline_size
1100	periodics_reify (EV_P)	1327	periodics_reify (EV_P)
1101	{	1328	{
1102	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1329	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1103	{	1330	{
1104	struct ev_periodic *w = periodics [0];	1331	ev_periodic *w = (ev_periodic *)periodics [0];
1105		1332
1106	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1333	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1107		1334
1108	/* first reschedule or stop timer */	1335	/* first reschedule or stop timer */
1109	if (w->reschedule_cb)	1336	if (w->reschedule_cb)
1110	{	1337	{
1111	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1338	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1112	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1339	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1113	downheap ((WT *)periodics, periodiccnt, 0);	1340	downheap (periodics, periodiccnt, 0);
1114	}	1341	}
1115	else if (w->interval)	1342	else if (w->interval)
1116	{	1343	{
1117	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1344	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1345	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1118	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1346	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1119	downheap ((WT *)periodics, periodiccnt, 0);	1347	downheap (periodics, periodiccnt, 0);
1120	}	1348	}
1121	else	1349	else
1122	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1350	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1123		1351
1124	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1352	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1125	}	1353	}
1126	}	1354	}
1127		1355
1128	static void	1356	static void noinline
1129	periodics_reschedule (EV_P)	1357	periodics_reschedule (EV_P)
1130	{	1358	{
1131	int i;	1359	int i;
1132		1360
1133	/* adjust periodics after time jump */	1361	/* adjust periodics after time jump */
1134	for (i = 0; i < periodiccnt; ++i)	1362	for (i = 0; i < periodiccnt; ++i)
1135	{	1363	{
1136	struct ev_periodic *w = periodics [i];	1364	ev_periodic *w = (ev_periodic *)periodics [i];
1137		1365
1138	if (w->reschedule_cb)	1366	if (w->reschedule_cb)
1139	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1367	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1140	else if (w->interval)	1368	else if (w->interval)
1141	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1369	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1142	}	1370	}
1143		1371
1144	/* now rebuild the heap */	1372	/* now rebuild the heap */
1145	for (i = periodiccnt >> 1; i--; )	1373	for (i = periodiccnt >> 1; i--; )
1146	downheap ((WT *)periodics, periodiccnt, i);	1374	downheap (periodics, periodiccnt, i);
1147	}	1375	}
1148	#endif	1376	#endif
1149		1377
1150	inline int	1378	#if EV_IDLE_ENABLE
1151	time_update_monotonic (EV_P)	1379	void inline_size
		1380	idle_reify (EV_P)
1152	{	1381	{
		1382	if (expect_false (idleall))
		1383	{
		1384	int pri;
		1385
		1386	for (pri = NUMPRI; pri--; )
		1387	{
		1388	if (pendingcnt [pri])
		1389	break;
		1390
		1391	if (idlecnt [pri])
		1392	{
		1393	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1394	break;
		1395	}
		1396	}
		1397	}
		1398	}
		1399	#endif
		1400
		1401	void inline_speed
		1402	time_update (EV_P_ ev_tstamp max_block)
		1403	{
		1404	int i;
		1405
		1406	#if EV_USE_MONOTONIC
		1407	if (expect_true (have_monotonic))
		1408	{
		1409	ev_tstamp odiff = rtmn_diff;
		1410
1153	mn_now = get_clock ();	1411	mn_now = get_clock ();
1154		1412
		1413	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1414	/* interpolate in the meantime */
1155	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1415	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1156	{	1416	{
1157	ev_rt_now = rtmn_diff + mn_now;	1417	ev_rt_now = rtmn_diff + mn_now;
1158	return 0;	1418	return;
1159	}	1419	}
1160	else	1420
1161	{
1162	now_floor = mn_now;	1421	now_floor = mn_now;
1163	ev_rt_now = ev_time ();	1422	ev_rt_now = ev_time ();
1164	return 1;
1165	}
1166	}
1167		1423
1168	inline void	1424	/* loop a few times, before making important decisions.
1169	time_update (EV_P)	1425	* on the choice of "4": one iteration isn't enough,
1170	{	1426	* in case we get preempted during the calls to
1171	int i;	1427	* ev_time and get_clock. a second call is almost guaranteed
1172		1428	* to succeed in that case, though. and looping a few more times
1173	#if EV_USE_MONOTONIC	1429	* doesn't hurt either as we only do this on time-jumps or
1174	if (expect_true (have_monotonic))	1430	* in the unlikely event of having been preempted here.
1175	{	1431	*/
1176	if (time_update_monotonic (EV_A))	1432	for (i = 4; --i; )
1177	{	1433	{
1178	ev_tstamp odiff = rtmn_diff;
1179
1180	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1181	{
1182	rtmn_diff = ev_rt_now - mn_now;	1434	rtmn_diff = ev_rt_now - mn_now;
1183		1435
1184	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1436	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1185	return; /* all is well */	1437	return; /* all is well */
1186		1438
1187	ev_rt_now = ev_time ();	1439	ev_rt_now = ev_time ();
1188	mn_now = get_clock ();	1440	mn_now = get_clock ();
1189	now_floor = mn_now;	1441	now_floor = mn_now;
1190	}	1442	}
1191		1443
1192	# if EV_PERIODICS	1444	# if EV_PERIODIC_ENABLE
		1445	periodics_reschedule (EV_A);
		1446	# endif
		1447	/* no timer adjustment, as the monotonic clock doesn't jump */
		1448	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
		1449	}
		1450	else
		1451	#endif
		1452	{
		1453	ev_rt_now = ev_time ();
		1454
		1455	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
		1456	{
		1457	#if EV_PERIODIC_ENABLE
1193	periodics_reschedule (EV_A);	1458	periodics_reschedule (EV_A);
1194	# endif	1459	#endif
1195	/* no timer adjustment, as the monotonic clock doesn't jump */
1196	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1197	}
1198	}
1199	else
1200	#endif
1201	{
1202	ev_rt_now = ev_time ();
1203
1204	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1205	{
1206	#if EV_PERIODICS
1207	periodics_reschedule (EV_A);
1208	#endif
1209
1210	/* adjust timers. this is easy, as the offset is the same for all */	1460	/* adjust timers. this is easy, as the offset is the same for all of them */
1211	for (i = 0; i < timercnt; ++i)	1461	for (i = 0; i < timercnt; ++i)
1212	((WT)timers [i])->at += ev_rt_now - mn_now;	1462	((WT)timers [i])->at += ev_rt_now - mn_now;
1213	}	1463	}
1214		1464
1215	mn_now = ev_rt_now;	1465	mn_now = ev_rt_now;
…		…
1231	static int loop_done;	1481	static int loop_done;
1232		1482
1233	void	1483	void
1234	ev_loop (EV_P_ int flags)	1484	ev_loop (EV_P_ int flags)
1235	{	1485	{
1236	double block;
1237	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1486	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1487	? EVUNLOOP_ONE
		1488	: EVUNLOOP_CANCEL;
1238		1489
1239	while (activecnt)	1490	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1491
		1492	do
1240	{	1493	{
		1494	#ifndef _WIN32
		1495	if (expect_false (curpid)) /* penalise the forking check even more */
		1496	if (expect_false (getpid () != curpid))
		1497	{
		1498	curpid = getpid ();
		1499	postfork = 1;
		1500	}
		1501	#endif
		1502
		1503	#if EV_FORK_ENABLE
		1504	/* we might have forked, so queue fork handlers */
		1505	if (expect_false (postfork))
		1506	if (forkcnt)
		1507	{
		1508	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1509	call_pending (EV_A);
		1510	}
		1511	#endif
		1512
1241	/* queue check watchers (and execute them) */	1513	/* queue prepare watchers (and execute them) */
1242	if (expect_false (preparecnt))	1514	if (expect_false (preparecnt))
1243	{	1515	{
1244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1516	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1245	call_pending (EV_A);	1517	call_pending (EV_A);
1246	}	1518	}
1247		1519
		1520	if (expect_false (!activecnt))
		1521	break;
		1522
1248	/* we might have forked, so reify kernel state if necessary */	1523	/* we might have forked, so reify kernel state if necessary */
1249	if (expect_false (postfork))	1524	if (expect_false (postfork))
1250	loop_fork (EV_A);	1525	loop_fork (EV_A);
1251		1526
1252	/* update fd-related kernel structures */	1527	/* update fd-related kernel structures */
1253	fd_reify (EV_A);	1528	fd_reify (EV_A);
1254		1529
1255	/* calculate blocking time */	1530	/* calculate blocking time */
		1531	{
		1532	ev_tstamp waittime = 0.;
		1533	ev_tstamp sleeptime = 0.;
1256		1534
1257	/* we only need this for !monotonic clock or timers, but as we basically	1535	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1258	always have timers, we just calculate it always */
1259	#if EV_USE_MONOTONIC
1260	if (expect_true (have_monotonic))
1261	time_update_monotonic (EV_A);
1262	else
1263	#endif
1264	{	1536	{
1265	ev_rt_now = ev_time ();	1537	/* update time to cancel out callback processing overhead */
1266	mn_now = ev_rt_now;	1538	time_update (EV_A_ 1e100);
1267	}
1268		1539
1269	if (flags & EVLOOP_NONBLOCK || idlecnt)
1270	block = 0.;
1271	else
1272	{
1273	block = MAX_BLOCKTIME;	1540	waittime = MAX_BLOCKTIME;
1274		1541
1275	if (timercnt)	1542	if (timercnt)
1276	{	1543	{
1277	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1544	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1278	if (block > to) block = to;	1545	if (waittime > to) waittime = to;
1279	}	1546	}
1280		1547
1281	#if EV_PERIODICS	1548	#if EV_PERIODIC_ENABLE
1282	if (periodiccnt)	1549	if (periodiccnt)
1283	{	1550	{
1284	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1551	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1285	if (block > to) block = to;	1552	if (waittime > to) waittime = to;
1286	}	1553	}
1287	#endif	1554	#endif
1288		1555
1289	if (expect_false (block < 0.)) block = 0.;	1556	if (expect_false (waittime < timeout_blocktime))
		1557	waittime = timeout_blocktime;
		1558
		1559	sleeptime = waittime - backend_fudge;
		1560
		1561	if (expect_true (sleeptime > io_blocktime))
		1562	sleeptime = io_blocktime;
		1563
		1564	if (sleeptime)
		1565	{
		1566	ev_sleep (sleeptime);
		1567	waittime -= sleeptime;
		1568	}
1290	}	1569	}
1291		1570
1292	method_poll (EV_A_ block);	1571	++loop_count;
		1572	backend_poll (EV_A_ waittime);
1293		1573
1294	/* update ev_rt_now, do magic */	1574	/* update ev_rt_now, do magic */
1295	time_update (EV_A);	1575	time_update (EV_A_ waittime + sleeptime);
		1576	}
1296		1577
1297	/* queue pending timers and reschedule them */	1578	/* queue pending timers and reschedule them */
1298	timers_reify (EV_A); /* relative timers called last */	1579	timers_reify (EV_A); /* relative timers called last */
1299	#if EV_PERIODICS	1580	#if EV_PERIODIC_ENABLE
1300	periodics_reify (EV_A); /* absolute timers called first */	1581	periodics_reify (EV_A); /* absolute timers called first */
1301	#endif	1582	#endif
1302		1583
		1584	#if EV_IDLE_ENABLE
1303	/* queue idle watchers unless io or timers are pending */	1585	/* queue idle watchers unless other events are pending */
1304	if (idlecnt && !any_pending (EV_A))	1586	idle_reify (EV_A);
1305	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1587	#endif
1306		1588
1307	/* queue check watchers, to be executed first */	1589	/* queue check watchers, to be executed first */
1308	if (expect_false (checkcnt))	1590	if (expect_false (checkcnt))
1309	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1591	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1310		1592
1311	call_pending (EV_A);	1593	call_pending (EV_A);
1312		1594
1313	if (expect_false (loop_done))
1314	break;
1315	}	1595	}
		1596	while (expect_true (activecnt && !loop_done));
1316		1597
1317	if (loop_done != 2)	1598	if (loop_done == EVUNLOOP_ONE)
1318	loop_done = 0;	1599	loop_done = EVUNLOOP_CANCEL;
1319	}	1600	}
1320		1601
1321	void	1602	void
1322	ev_unloop (EV_P_ int how)	1603	ev_unloop (EV_P_ int how)
1323	{	1604	{
1324	loop_done = how;	1605	loop_done = how;
1325	}	1606	}
1326		1607
1327	/*****************************************************************************/	1608	/*****************************************************************************/
1328		1609
1329	inline void	1610	void inline_size
1330	wlist_add (WL *head, WL elem)	1611	wlist_add (WL *head, WL elem)
1331	{	1612	{
1332	elem->next = *head;	1613	elem->next = *head;
1333	*head = elem;	1614	*head = elem;
1334	}	1615	}
1335		1616
1336	inline void	1617	void inline_size
1337	wlist_del (WL *head, WL elem)	1618	wlist_del (WL *head, WL elem)
1338	{	1619	{
1339	while (*head)	1620	while (*head)
1340	{	1621	{
1341	if (*head == elem)	1622	if (*head == elem)
…		…
1346		1627
1347	head = &(*head)->next;	1628	head = &(*head)->next;
1348	}	1629	}
1349	}	1630	}
1350		1631
1351	inline void	1632	void inline_speed
1352	ev_clear_pending (EV_P_ W w)	1633	clear_pending (EV_P_ W w)
1353	{	1634	{
1354	if (w->pending)	1635	if (w->pending)
1355	{	1636	{
1356	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1637	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1357	w->pending = 0;	1638	w->pending = 0;
1358	}	1639	}
1359	}	1640	}
1360		1641
1361	inline void	1642	int
		1643	ev_clear_pending (EV_P_ void *w)
		1644	{
		1645	W w_ = (W)w;
		1646	int pending = w_->pending;
		1647
		1648	if (expect_true (pending))
		1649	{
		1650	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1651	w_->pending = 0;
		1652	p->w = 0;
		1653	return p->events;
		1654	}
		1655	else
		1656	return 0;
		1657	}
		1658
		1659	void inline_size
		1660	pri_adjust (EV_P_ W w)
		1661	{
		1662	int pri = w->priority;
		1663	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1664	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1665	w->priority = pri;
		1666	}
		1667
		1668	void inline_speed
1362	ev_start (EV_P_ W w, int active)	1669	ev_start (EV_P_ W w, int active)
1363	{	1670	{
1364	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1671	pri_adjust (EV_A_ w);
1365	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1366
1367	w->active = active;	1672	w->active = active;
1368	ev_ref (EV_A);	1673	ev_ref (EV_A);
1369	}	1674	}
1370		1675
1371	inline void	1676	void inline_size
1372	ev_stop (EV_P_ W w)	1677	ev_stop (EV_P_ W w)
1373	{	1678	{
1374	ev_unref (EV_A);	1679	ev_unref (EV_A);
1375	w->active = 0;	1680	w->active = 0;
1376	}	1681	}
1377		1682
1378	/*****************************************************************************/	1683	/*****************************************************************************/
1379		1684
1380	void	1685	void noinline
1381	ev_io_start (EV_P_ struct ev_io *w)	1686	ev_io_start (EV_P_ ev_io *w)
1382	{	1687	{
1383	int fd = w->fd;	1688	int fd = w->fd;
1384		1689
1385	if (expect_false (ev_is_active (w)))	1690	if (expect_false (ev_is_active (w)))
1386	return;	1691	return;
1387		1692
1388	assert (("ev_io_start called with negative fd", fd >= 0));	1693	assert (("ev_io_start called with negative fd", fd >= 0));
1389		1694
1390	ev_start (EV_A_ (W)w, 1);	1695	ev_start (EV_A_ (W)w, 1);
1391	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1696	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1392	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1697	wlist_add (&anfds[fd].head, (WL)w);
1393		1698
1394	fd_change (EV_A_ fd);	1699	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1700	w->events &= ~EV_IOFDSET;
1395	}	1701	}
1396		1702
1397	void	1703	void noinline
1398	ev_io_stop (EV_P_ struct ev_io *w)	1704	ev_io_stop (EV_P_ ev_io *w)
1399	{	1705	{
1400	ev_clear_pending (EV_A_ (W)w);	1706	clear_pending (EV_A_ (W)w);
1401	if (expect_false (!ev_is_active (w)))	1707	if (expect_false (!ev_is_active (w)))
1402	return;	1708	return;
1403		1709
1404	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1710	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1405		1711
1406	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1712	wlist_del (&anfds[w->fd].head, (WL)w);
1407	ev_stop (EV_A_ (W)w);	1713	ev_stop (EV_A_ (W)w);
1408		1714
1409	fd_change (EV_A_ w->fd);	1715	fd_change (EV_A_ w->fd, 1);
1410	}	1716	}
1411		1717
1412	void	1718	void noinline
1413	ev_timer_start (EV_P_ struct ev_timer *w)	1719	ev_timer_start (EV_P_ ev_timer *w)
1414	{	1720	{
1415	if (expect_false (ev_is_active (w)))	1721	if (expect_false (ev_is_active (w)))
1416	return;	1722	return;
1417		1723
1418	((WT)w)->at += mn_now;	1724	((WT)w)->at += mn_now;
1419		1725
1420	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1726	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1421		1727
1422	ev_start (EV_A_ (W)w, ++timercnt);	1728	ev_start (EV_A_ (W)w, ++timercnt);
1423	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);	1729	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1424	timers [timercnt - 1] = w;	1730	timers [timercnt - 1] = (WT)w;
1425	upheap ((WT *)timers, timercnt - 1);	1731	upheap (timers, timercnt - 1);
1426		1732
1427	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1733	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1428	}	1734	}
1429		1735
1430	void	1736	void noinline
1431	ev_timer_stop (EV_P_ struct ev_timer *w)	1737	ev_timer_stop (EV_P_ ev_timer *w)
1432	{	1738	{
1433	ev_clear_pending (EV_A_ (W)w);	1739	clear_pending (EV_A_ (W)w);
1434	if (expect_false (!ev_is_active (w)))	1740	if (expect_false (!ev_is_active (w)))
1435	return;	1741	return;
1436		1742
1437	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1743	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1438		1744
		1745	{
		1746	int active = ((W)w)->active;
		1747
1439	if (expect_true (((W)w)->active < timercnt--))	1748	if (expect_true (--active < --timercnt))
1440	{	1749	{
1441	timers [((W)w)->active - 1] = timers [timercnt];	1750	timers [active] = timers [timercnt];
1442	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1751	adjustheap (timers, timercnt, active);
1443	}	1752	}
		1753	}
1444		1754
1445	((WT)w)->at -= mn_now;	1755	((WT)w)->at -= mn_now;
1446		1756
1447	ev_stop (EV_A_ (W)w);	1757	ev_stop (EV_A_ (W)w);
1448	}	1758	}
1449		1759
1450	void	1760	void noinline
1451	ev_timer_again (EV_P_ struct ev_timer *w)	1761	ev_timer_again (EV_P_ ev_timer *w)
1452	{	1762	{
1453	if (ev_is_active (w))	1763	if (ev_is_active (w))
1454	{	1764	{
1455	if (w->repeat)	1765	if (w->repeat)
1456	{	1766	{
1457	((WT)w)->at = mn_now + w->repeat;	1767	((WT)w)->at = mn_now + w->repeat;
1458	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1768	adjustheap (timers, timercnt, ((W)w)->active - 1);
1459	}	1769	}
1460	else	1770	else
1461	ev_timer_stop (EV_A_ w);	1771	ev_timer_stop (EV_A_ w);
1462	}	1772	}
1463	else if (w->repeat)	1773	else if (w->repeat)
…		…
1465	w->at = w->repeat;	1775	w->at = w->repeat;
1466	ev_timer_start (EV_A_ w);	1776	ev_timer_start (EV_A_ w);
1467	}	1777	}
1468	}	1778	}
1469		1779
1470	#if EV_PERIODICS	1780	#if EV_PERIODIC_ENABLE
1471	void	1781	void noinline
1472	ev_periodic_start (EV_P_ struct ev_periodic *w)	1782	ev_periodic_start (EV_P_ ev_periodic *w)
1473	{	1783	{
1474	if (expect_false (ev_is_active (w)))	1784	if (expect_false (ev_is_active (w)))
1475	return;	1785	return;
1476		1786
1477	if (w->reschedule_cb)	1787	if (w->reschedule_cb)
1478	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1788	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1479	else if (w->interval)	1789	else if (w->interval)
1480	{	1790	{
1481	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1791	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1482	/* this formula differs from the one in periodic_reify because we do not always round up */	1792	/* this formula differs from the one in periodic_reify because we do not always round up */
1483	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1793	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1484	}	1794	}
		1795	else
		1796	((WT)w)->at = w->offset;
1485		1797
1486	ev_start (EV_A_ (W)w, ++periodiccnt);	1798	ev_start (EV_A_ (W)w, ++periodiccnt);
1487	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1799	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1488	periodics [periodiccnt - 1] = w;	1800	periodics [periodiccnt - 1] = (WT)w;
1489	upheap ((WT *)periodics, periodiccnt - 1);	1801	upheap (periodics, periodiccnt - 1);
1490		1802
1491	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1803	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1492	}	1804	}
1493		1805
1494	void	1806	void noinline
1495	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1807	ev_periodic_stop (EV_P_ ev_periodic *w)
1496	{	1808	{
1497	ev_clear_pending (EV_A_ (W)w);	1809	clear_pending (EV_A_ (W)w);
1498	if (expect_false (!ev_is_active (w)))	1810	if (expect_false (!ev_is_active (w)))
1499	return;	1811	return;
1500		1812
1501	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1813	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1502		1814
		1815	{
		1816	int active = ((W)w)->active;
		1817
1503	if (expect_true (((W)w)->active < periodiccnt--))	1818	if (expect_true (--active < --periodiccnt))
1504	{	1819	{
1505	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1820	periodics [active] = periodics [periodiccnt];
1506	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1821	adjustheap (periodics, periodiccnt, active);
1507	}	1822	}
		1823	}
1508		1824
1509	ev_stop (EV_A_ (W)w);	1825	ev_stop (EV_A_ (W)w);
1510	}	1826	}
1511		1827
1512	void	1828	void noinline
1513	ev_periodic_again (EV_P_ struct ev_periodic *w)	1829	ev_periodic_again (EV_P_ ev_periodic *w)
1514	{	1830	{
1515	/* TODO: use adjustheap and recalculation */	1831	/* TODO: use adjustheap and recalculation */
1516	ev_periodic_stop (EV_A_ w);	1832	ev_periodic_stop (EV_A_ w);
1517	ev_periodic_start (EV_A_ w);	1833	ev_periodic_start (EV_A_ w);
1518	}	1834	}
1519	#endif	1835	#endif
1520		1836
1521	void
1522	ev_idle_start (EV_P_ struct ev_idle *w)
1523	{
1524	if (expect_false (ev_is_active (w)))
1525	return;
1526
1527	ev_start (EV_A_ (W)w, ++idlecnt);
1528	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1529	idles [idlecnt - 1] = w;
1530	}
1531
1532	void
1533	ev_idle_stop (EV_P_ struct ev_idle *w)
1534	{
1535	ev_clear_pending (EV_A_ (W)w);
1536	if (expect_false (!ev_is_active (w)))
1537	return;
1538
1539	idles [((W)w)->active - 1] = idles [--idlecnt];
1540	ev_stop (EV_A_ (W)w);
1541	}
1542
1543	void
1544	ev_prepare_start (EV_P_ struct ev_prepare *w)
1545	{
1546	if (expect_false (ev_is_active (w)))
1547	return;
1548
1549	ev_start (EV_A_ (W)w, ++preparecnt);
1550	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1551	prepares [preparecnt - 1] = w;
1552	}
1553
1554	void
1555	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1556	{
1557	ev_clear_pending (EV_A_ (W)w);
1558	if (expect_false (!ev_is_active (w)))
1559	return;
1560
1561	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1562	ev_stop (EV_A_ (W)w);
1563	}
1564
1565	void
1566	ev_check_start (EV_P_ struct ev_check *w)
1567	{
1568	if (expect_false (ev_is_active (w)))
1569	return;
1570
1571	ev_start (EV_A_ (W)w, ++checkcnt);
1572	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1573	checks [checkcnt - 1] = w;
1574	}
1575
1576	void
1577	ev_check_stop (EV_P_ struct ev_check *w)
1578	{
1579	ev_clear_pending (EV_A_ (W)w);
1580	if (expect_false (!ev_is_active (w)))
1581	return;
1582
1583	checks [((W)w)->active - 1] = checks [--checkcnt];
1584	ev_stop (EV_A_ (W)w);
1585	}
1586
1587	#ifndef SA_RESTART	1837	#ifndef SA_RESTART
1588	# define SA_RESTART 0	1838	# define SA_RESTART 0
1589	#endif	1839	#endif
1590		1840
1591	void	1841	void noinline
1592	ev_signal_start (EV_P_ struct ev_signal *w)	1842	ev_signal_start (EV_P_ ev_signal *w)
1593	{	1843	{
1594	#if EV_MULTIPLICITY	1844	#if EV_MULTIPLICITY
1595	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1845	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1596	#endif	1846	#endif
1597	if (expect_false (ev_is_active (w)))	1847	if (expect_false (ev_is_active (w)))
1598	return;	1848	return;
1599		1849
1600	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1850	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1601		1851
		1852	{
		1853	#ifndef _WIN32
		1854	sigset_t full, prev;
		1855	sigfillset (&full);
		1856	sigprocmask (SIG_SETMASK, &full, &prev);
		1857	#endif
		1858
		1859	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1860
		1861	#ifndef _WIN32
		1862	sigprocmask (SIG_SETMASK, &prev, 0);
		1863	#endif
		1864	}
		1865
1602	ev_start (EV_A_ (W)w, 1);	1866	ev_start (EV_A_ (W)w, 1);
1603	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1604	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1867	wlist_add (&signals [w->signum - 1].head, (WL)w);
1605		1868
1606	if (!((WL)w)->next)	1869	if (!((WL)w)->next)
1607	{	1870	{
1608	#if _WIN32	1871	#if _WIN32
1609	signal (w->signum, sighandler);	1872	signal (w->signum, sighandler);
…		…
1615	sigaction (w->signum, &sa, 0);	1878	sigaction (w->signum, &sa, 0);
1616	#endif	1879	#endif
1617	}	1880	}
1618	}	1881	}
1619		1882
1620	void	1883	void noinline
1621	ev_signal_stop (EV_P_ struct ev_signal *w)	1884	ev_signal_stop (EV_P_ ev_signal *w)
1622	{	1885	{
1623	ev_clear_pending (EV_A_ (W)w);	1886	clear_pending (EV_A_ (W)w);
1624	if (expect_false (!ev_is_active (w)))	1887	if (expect_false (!ev_is_active (w)))
1625	return;	1888	return;
1626		1889
1627	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1890	wlist_del (&signals [w->signum - 1].head, (WL)w);
1628	ev_stop (EV_A_ (W)w);	1891	ev_stop (EV_A_ (W)w);
1629		1892
1630	if (!signals [w->signum - 1].head)	1893	if (!signals [w->signum - 1].head)
1631	signal (w->signum, SIG_DFL);	1894	signal (w->signum, SIG_DFL);
1632	}	1895	}
1633		1896
1634	void	1897	void
1635	ev_child_start (EV_P_ struct ev_child *w)	1898	ev_child_start (EV_P_ ev_child *w)
1636	{	1899	{
1637	#if EV_MULTIPLICITY	1900	#if EV_MULTIPLICITY
1638	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1901	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1639	#endif	1902	#endif
1640	if (expect_false (ev_is_active (w)))	1903	if (expect_false (ev_is_active (w)))
1641	return;	1904	return;
1642		1905
1643	ev_start (EV_A_ (W)w, 1);	1906	ev_start (EV_A_ (W)w, 1);
1644	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1907	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1645	}	1908	}
1646		1909
1647	void	1910	void
1648	ev_child_stop (EV_P_ struct ev_child *w)	1911	ev_child_stop (EV_P_ ev_child *w)
1649	{	1912	{
1650	ev_clear_pending (EV_A_ (W)w);	1913	clear_pending (EV_A_ (W)w);
1651	if (expect_false (!ev_is_active (w)))	1914	if (expect_false (!ev_is_active (w)))
1652	return;	1915	return;
1653		1916
1654	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1917	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1655	ev_stop (EV_A_ (W)w);	1918	ev_stop (EV_A_ (W)w);
1656	}	1919	}
1657		1920
		1921	#if EV_STAT_ENABLE
		1922
		1923	# ifdef _WIN32
		1924	# undef lstat
		1925	# define lstat(a,b) _stati64 (a,b)
		1926	# endif
		1927
		1928	#define DEF_STAT_INTERVAL 5.0074891
		1929	#define MIN_STAT_INTERVAL 0.1074891
		1930
		1931	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1932
		1933	#if EV_USE_INOTIFY
		1934	# define EV_INOTIFY_BUFSIZE 8192
		1935
		1936	static void noinline
		1937	infy_add (EV_P_ ev_stat *w)
		1938	{
		1939	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);
		1940
		1941	if (w->wd < 0)
		1942	{
		1943	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1944
		1945	/* monitor some parent directory for speedup hints */
		1946	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1947	{
		1948	char path [4096];
		1949	strcpy (path, w->path);
		1950
		1951	do
		1952	{
		1953	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1954	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1955
		1956	char *pend = strrchr (path, '/');
		1957
		1958	if (!pend)
		1959	break; /* whoops, no '/', complain to your admin */
		1960
		1961	*pend = 0;
		1962	w->wd = inotify_add_watch (fs_fd, path, mask);
		1963	}
		1964	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1965	}
		1966	}
		1967	else
		1968	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1969
		1970	if (w->wd >= 0)
		1971	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1972	}
		1973
		1974	static void noinline
		1975	infy_del (EV_P_ ev_stat *w)
		1976	{
		1977	int slot;
		1978	int wd = w->wd;
		1979
		1980	if (wd < 0)
		1981	return;
		1982
		1983	w->wd = -2;
		1984	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1985	wlist_del (&fs_hash [slot].head, (WL)w);
		1986
		1987	/* remove this watcher, if others are watching it, they will rearm */
		1988	inotify_rm_watch (fs_fd, wd);
		1989	}
		1990
		1991	static void noinline
		1992	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1993	{
		1994	if (slot < 0)
		1995	/* overflow, need to check for all hahs slots */
		1996	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1997	infy_wd (EV_A_ slot, wd, ev);
		1998	else
		1999	{
		2000	WL w_;
		2001
		2002	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2003	{
		2004	ev_stat *w = (ev_stat *)w_;
		2005	w_ = w_->next; /* lets us remove this watcher and all before it */
		2006
		2007	if (w->wd == wd || wd == -1)
		2008	{
		2009	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2010	{
		2011	w->wd = -1;
		2012	infy_add (EV_A_ w); /* re-add, no matter what */
		2013	}
		2014
		2015	stat_timer_cb (EV_A_ &w->timer, 0);
		2016	}
		2017	}
		2018	}
		2019	}
		2020
		2021	static void
		2022	infy_cb (EV_P_ ev_io *w, int revents)
		2023	{
		2024	char buf [EV_INOTIFY_BUFSIZE];
		2025	struct inotify_event *ev = (struct inotify_event *)buf;
		2026	int ofs;
		2027	int len = read (fs_fd, buf, sizeof (buf));
		2028
		2029	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2030	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2031	}
		2032
		2033	void inline_size
		2034	infy_init (EV_P)
		2035	{
		2036	if (fs_fd != -2)
		2037	return;
		2038
		2039	fs_fd = inotify_init ();
		2040
		2041	if (fs_fd >= 0)
		2042	{
		2043	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2044	ev_set_priority (&fs_w, EV_MAXPRI);
		2045	ev_io_start (EV_A_ &fs_w);
		2046	}
		2047	}
		2048
		2049	void inline_size
		2050	infy_fork (EV_P)
		2051	{
		2052	int slot;
		2053
		2054	if (fs_fd < 0)
		2055	return;
		2056
		2057	close (fs_fd);
		2058	fs_fd = inotify_init ();
		2059
		2060	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2061	{
		2062	WL w_ = fs_hash [slot].head;
		2063	fs_hash [slot].head = 0;
		2064
		2065	while (w_)
		2066	{
		2067	ev_stat *w = (ev_stat *)w_;
		2068	w_ = w_->next; /* lets us add this watcher */
		2069
		2070	w->wd = -1;
		2071
		2072	if (fs_fd >= 0)
		2073	infy_add (EV_A_ w); /* re-add, no matter what */
		2074	else
		2075	ev_timer_start (EV_A_ &w->timer);
		2076	}
		2077
		2078	}
		2079	}
		2080
		2081	#endif
		2082
		2083	void
		2084	ev_stat_stat (EV_P_ ev_stat *w)
		2085	{
		2086	if (lstat (w->path, &w->attr) < 0)
		2087	w->attr.st_nlink = 0;
		2088	else if (!w->attr.st_nlink)
		2089	w->attr.st_nlink = 1;
		2090	}
		2091
		2092	static void noinline
		2093	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		2094	{
		2095	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2096
		2097	/* we copy this here each the time so that */
		2098	/* prev has the old value when the callback gets invoked */
		2099	w->prev = w->attr;
		2100	ev_stat_stat (EV_A_ w);
		2101
		2102	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2103	if (
		2104	w->prev.st_dev != w->attr.st_dev
		2105	|| w->prev.st_ino != w->attr.st_ino
		2106	|| w->prev.st_mode != w->attr.st_mode
		2107	|| w->prev.st_nlink != w->attr.st_nlink
		2108	|| w->prev.st_uid != w->attr.st_uid
		2109	|| w->prev.st_gid != w->attr.st_gid
		2110	|| w->prev.st_rdev != w->attr.st_rdev
		2111	|| w->prev.st_size != w->attr.st_size
		2112	|| w->prev.st_atime != w->attr.st_atime
		2113	|| w->prev.st_mtime != w->attr.st_mtime
		2114	|| w->prev.st_ctime != w->attr.st_ctime
		2115	) {
		2116	#if EV_USE_INOTIFY
		2117	infy_del (EV_A_ w);
		2118	infy_add (EV_A_ w);
		2119	ev_stat_stat (EV_A_ w); /* avoid race... */
		2120	#endif
		2121
		2122	ev_feed_event (EV_A_ w, EV_STAT);
		2123	}
		2124	}
		2125
		2126	void
		2127	ev_stat_start (EV_P_ ev_stat *w)
		2128	{
		2129	if (expect_false (ev_is_active (w)))
		2130	return;
		2131
		2132	/* since we use memcmp, we need to clear any padding data etc. */
		2133	memset (&w->prev, 0, sizeof (ev_statdata));
		2134	memset (&w->attr, 0, sizeof (ev_statdata));
		2135
		2136	ev_stat_stat (EV_A_ w);
		2137
		2138	if (w->interval < MIN_STAT_INTERVAL)
		2139	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2140
		2141	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2142	ev_set_priority (&w->timer, ev_priority (w));
		2143
		2144	#if EV_USE_INOTIFY
		2145	infy_init (EV_A);
		2146
		2147	if (fs_fd >= 0)
		2148	infy_add (EV_A_ w);
		2149	else
		2150	#endif
		2151	ev_timer_start (EV_A_ &w->timer);
		2152
		2153	ev_start (EV_A_ (W)w, 1);
		2154	}
		2155
		2156	void
		2157	ev_stat_stop (EV_P_ ev_stat *w)
		2158	{
		2159	clear_pending (EV_A_ (W)w);
		2160	if (expect_false (!ev_is_active (w)))
		2161	return;
		2162
		2163	#if EV_USE_INOTIFY
		2164	infy_del (EV_A_ w);
		2165	#endif
		2166	ev_timer_stop (EV_A_ &w->timer);
		2167
		2168	ev_stop (EV_A_ (W)w);
		2169	}
		2170	#endif
		2171
		2172	#if EV_IDLE_ENABLE
		2173	void
		2174	ev_idle_start (EV_P_ ev_idle *w)
		2175	{
		2176	if (expect_false (ev_is_active (w)))
		2177	return;
		2178
		2179	pri_adjust (EV_A_ (W)w);
		2180
		2181	{
		2182	int active = ++idlecnt [ABSPRI (w)];
		2183
		2184	++idleall;
		2185	ev_start (EV_A_ (W)w, active);
		2186
		2187	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2188	idles [ABSPRI (w)][active - 1] = w;
		2189	}
		2190	}
		2191
		2192	void
		2193	ev_idle_stop (EV_P_ ev_idle *w)
		2194	{
		2195	clear_pending (EV_A_ (W)w);
		2196	if (expect_false (!ev_is_active (w)))
		2197	return;
		2198
		2199	{
		2200	int active = ((W)w)->active;
		2201
		2202	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2203	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2204
		2205	ev_stop (EV_A_ (W)w);
		2206	--idleall;
		2207	}
		2208	}
		2209	#endif
		2210
		2211	void
		2212	ev_prepare_start (EV_P_ ev_prepare *w)
		2213	{
		2214	if (expect_false (ev_is_active (w)))
		2215	return;
		2216
		2217	ev_start (EV_A_ (W)w, ++preparecnt);
		2218	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2219	prepares [preparecnt - 1] = w;
		2220	}
		2221
		2222	void
		2223	ev_prepare_stop (EV_P_ ev_prepare *w)
		2224	{
		2225	clear_pending (EV_A_ (W)w);
		2226	if (expect_false (!ev_is_active (w)))
		2227	return;
		2228
		2229	{
		2230	int active = ((W)w)->active;
		2231	prepares [active - 1] = prepares [--preparecnt];
		2232	((W)prepares [active - 1])->active = active;
		2233	}
		2234
		2235	ev_stop (EV_A_ (W)w);
		2236	}
		2237
		2238	void
		2239	ev_check_start (EV_P_ ev_check *w)
		2240	{
		2241	if (expect_false (ev_is_active (w)))
		2242	return;
		2243
		2244	ev_start (EV_A_ (W)w, ++checkcnt);
		2245	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2246	checks [checkcnt - 1] = w;
		2247	}
		2248
		2249	void
		2250	ev_check_stop (EV_P_ ev_check *w)
		2251	{
		2252	clear_pending (EV_A_ (W)w);
		2253	if (expect_false (!ev_is_active (w)))
		2254	return;
		2255
		2256	{
		2257	int active = ((W)w)->active;
		2258	checks [active - 1] = checks [--checkcnt];
		2259	((W)checks [active - 1])->active = active;
		2260	}
		2261
		2262	ev_stop (EV_A_ (W)w);
		2263	}
		2264
		2265	#if EV_EMBED_ENABLE
		2266	void noinline
		2267	ev_embed_sweep (EV_P_ ev_embed *w)
		2268	{
		2269	ev_loop (w->other, EVLOOP_NONBLOCK);
		2270	}
		2271
		2272	static void
		2273	embed_io_cb (EV_P_ ev_io *io, int revents)
		2274	{
		2275	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2276
		2277	if (ev_cb (w))
		2278	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2279	else
		2280	ev_loop (w->other, EVLOOP_NONBLOCK);
		2281	}
		2282
		2283	static void
		2284	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2285	{
		2286	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2287
		2288	{
		2289	struct ev_loop *loop = w->other;
		2290
		2291	while (fdchangecnt)
		2292	{
		2293	fd_reify (EV_A);
		2294	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2295	}
		2296	}
		2297	}
		2298
		2299	#if 0
		2300	static void
		2301	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2302	{
		2303	ev_idle_stop (EV_A_ idle);
		2304	}
		2305	#endif
		2306
		2307	void
		2308	ev_embed_start (EV_P_ ev_embed *w)
		2309	{
		2310	if (expect_false (ev_is_active (w)))
		2311	return;
		2312
		2313	{
		2314	struct ev_loop *loop = w->other;
		2315	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2316	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
		2317	}
		2318
		2319	ev_set_priority (&w->io, ev_priority (w));
		2320	ev_io_start (EV_A_ &w->io);
		2321
		2322	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2323	ev_set_priority (&w->prepare, EV_MINPRI);
		2324	ev_prepare_start (EV_A_ &w->prepare);
		2325
		2326	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2327
		2328	ev_start (EV_A_ (W)w, 1);
		2329	}
		2330
		2331	void
		2332	ev_embed_stop (EV_P_ ev_embed *w)
		2333	{
		2334	clear_pending (EV_A_ (W)w);
		2335	if (expect_false (!ev_is_active (w)))
		2336	return;
		2337
		2338	ev_io_stop (EV_A_ &w->io);
		2339	ev_prepare_stop (EV_A_ &w->prepare);
		2340
		2341	ev_stop (EV_A_ (W)w);
		2342	}
		2343	#endif
		2344
		2345	#if EV_FORK_ENABLE
		2346	void
		2347	ev_fork_start (EV_P_ ev_fork *w)
		2348	{
		2349	if (expect_false (ev_is_active (w)))
		2350	return;
		2351
		2352	ev_start (EV_A_ (W)w, ++forkcnt);
		2353	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2354	forks [forkcnt - 1] = w;
		2355	}
		2356
		2357	void
		2358	ev_fork_stop (EV_P_ ev_fork *w)
		2359	{
		2360	clear_pending (EV_A_ (W)w);
		2361	if (expect_false (!ev_is_active (w)))
		2362	return;
		2363
		2364	{
		2365	int active = ((W)w)->active;
		2366	forks [active - 1] = forks [--forkcnt];
		2367	((W)forks [active - 1])->active = active;
		2368	}
		2369
		2370	ev_stop (EV_A_ (W)w);
		2371	}
		2372	#endif
		2373
1658	/*****************************************************************************/	2374	/*****************************************************************************/
1659		2375
1660	struct ev_once	2376	struct ev_once
1661	{	2377	{
1662	struct ev_io io;	2378	ev_io io;
1663	struct ev_timer to;	2379	ev_timer to;
1664	void (*cb)(int revents, void *arg);	2380	void (*cb)(int revents, void *arg);
1665	void *arg;	2381	void *arg;
1666	};	2382	};
1667		2383
1668	static void	2384	static void
…		…
1677		2393
1678	cb (revents, arg);	2394	cb (revents, arg);
1679	}	2395	}
1680		2396
1681	static void	2397	static void
1682	once_cb_io (EV_P_ struct ev_io *w, int revents)	2398	once_cb_io (EV_P_ ev_io *w, int revents)
1683	{	2399	{
1684	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2400	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1685	}	2401	}
1686		2402
1687	static void	2403	static void
1688	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2404	once_cb_to (EV_P_ ev_timer *w, int revents)
1689	{	2405	{
1690	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2406	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1691	}	2407	}
1692		2408
1693	void	2409	void
…		…
1717	ev_timer_set (&once->to, timeout, 0.);	2433	ev_timer_set (&once->to, timeout, 0.);
1718	ev_timer_start (EV_A_ &once->to);	2434	ev_timer_start (EV_A_ &once->to);
1719	}	2435	}
1720	}	2436	}
1721		2437
		2438	#if EV_MULTIPLICITY
		2439	#include "ev_wrap.h"
		2440	#endif
		2441
1722	#ifdef __cplusplus	2442	#ifdef __cplusplus
1723	}	2443	}
1724	#endif	2444	#endif
1725		2445

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