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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 1.197 by root, Sat Dec 22 15:20:13 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	return flags;
		984	}
		985
		986	unsigned int
		987	ev_backend (EV_P)
		988	{
		989	return backend;
		990	}
		991
		992	unsigned int
		993	ev_loop_count (EV_P)
		994	{
		995	return loop_count;
		996	}
		997
		998	void
		999	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1000	{
		1001	io_blocktime = interval;
		1002	}
		1003
		1004	void
		1005	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1006	{
		1007	timeout_blocktime = interval;
		1008	}
		1009
		1010	static void noinline
821	loop_init (EV_P_ unsigned int flags)	1011	loop_init (EV_P_ unsigned int flags)
822	{	1012	{
823	if (!method)	1013	if (!backend)
824	{	1014	{
825	#if EV_USE_MONOTONIC	1015	#if EV_USE_MONOTONIC
826	{	1016	{
827	struct timespec ts;	1017	struct timespec ts;
828	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1018	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
833	ev_rt_now = ev_time ();	1023	ev_rt_now = ev_time ();
834	mn_now = get_clock ();	1024	mn_now = get_clock ();
835	now_floor = mn_now;	1025	now_floor = mn_now;
836	rtmn_diff = ev_rt_now - mn_now;	1026	rtmn_diff = ev_rt_now - mn_now;
837		1027
		1028	io_blocktime = 0.;
		1029	timeout_blocktime = 0.;
		1030
		1031	/* pid check not overridable via env */
		1032	#ifndef _WIN32
		1033	if (flags & EVFLAG_FORKCHECK)
		1034	curpid = getpid ();
		1035	#endif
		1036
838	if (!(flags & EVFLAG_NOENV)	1037	if (!(flags & EVFLAG_NOENV)
839	&& !enable_secure ()	1038	&& !enable_secure ()
840	&& getenv ("LIBEV_FLAGS"))	1039	&& getenv ("LIBEV_FLAGS"))
841	flags = atoi (getenv ("LIBEV_FLAGS"));	1040	flags = atoi (getenv ("LIBEV_FLAGS"));
842		1041
843	if (!(flags & 0x0000ffffUL))	1042	if (!(flags & 0x0000ffffUL))
844	flags |= ev_recommended_backends ();	1043	flags |= ev_recommended_backends ();
845		1044
846	method = 0;	1045	backend = 0;
		1046	backend_fd = -1;
		1047	#if EV_USE_INOTIFY
		1048	fs_fd = -2;
		1049	#endif
		1050
847	#if EV_USE_PORT	1051	#if EV_USE_PORT
848	if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags);	1052	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
849	#endif	1053	#endif
850	#if EV_USE_KQUEUE	1054	#if EV_USE_KQUEUE
851	if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags);	1055	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
852	#endif	1056	#endif
853	#if EV_USE_EPOLL	1057	#if EV_USE_EPOLL
854	if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags);	1058	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
855	#endif	1059	#endif
856	#if EV_USE_POLL	1060	#if EV_USE_POLL
857	if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags);	1061	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
858	#endif	1062	#endif
859	#if EV_USE_SELECT	1063	#if EV_USE_SELECT
860	if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags);	1064	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
861	#endif	1065	#endif
862		1066
863	ev_init (&sigev, sigcb);	1067	ev_init (&sigev, sigcb);
864	ev_set_priority (&sigev, EV_MAXPRI);	1068	ev_set_priority (&sigev, EV_MAXPRI);
865	}	1069	}
866	}	1070	}
867		1071
868	static void	1072	static void noinline
869	loop_destroy (EV_P)	1073	loop_destroy (EV_P)
870	{	1074	{
871	int i;	1075	int i;
872		1076
		1077	#if EV_USE_INOTIFY
		1078	if (fs_fd >= 0)
		1079	close (fs_fd);
		1080	#endif
		1081
		1082	if (backend_fd >= 0)
		1083	close (backend_fd);
		1084
873	#if EV_USE_PORT	1085	#if EV_USE_PORT
874	if (method == EVBACKEND_PORT ) port_destroy (EV_A);	1086	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
875	#endif	1087	#endif
876	#if EV_USE_KQUEUE	1088	#if EV_USE_KQUEUE
877	if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1089	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
878	#endif	1090	#endif
879	#if EV_USE_EPOLL	1091	#if EV_USE_EPOLL
880	if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A);	1092	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
881	#endif	1093	#endif
882	#if EV_USE_POLL	1094	#if EV_USE_POLL
883	if (method == EVBACKEND_POLL ) poll_destroy (EV_A);	1095	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
884	#endif	1096	#endif
885	#if EV_USE_SELECT	1097	#if EV_USE_SELECT
886	if (method == EVBACKEND_SELECT) select_destroy (EV_A);	1098	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
887	#endif	1099	#endif
888		1100
889	for (i = NUMPRI; i--; )	1101	for (i = NUMPRI; i--; )
		1102	{
890	array_free (pending, [i]);	1103	array_free (pending, [i]);
		1104	#if EV_IDLE_ENABLE
		1105	array_free (idle, [i]);
		1106	#endif
		1107	}
		1108
		1109	ev_free (anfds); anfdmax = 0;
891		1110
892	/* have to use the microsoft-never-gets-it-right macro */	1111	/* have to use the microsoft-never-gets-it-right macro */
893	array_free (fdchange, EMPTY0);	1112	array_free (fdchange, EMPTY);
894	array_free (timer, EMPTY0);	1113	array_free (timer, EMPTY);
895	#if EV_PERIODICS	1114	#if EV_PERIODIC_ENABLE
896	array_free (periodic, EMPTY0);	1115	array_free (periodic, EMPTY);
897	#endif	1116	#endif
		1117	#if EV_FORK_ENABLE
898	array_free (idle, EMPTY0);	1118	array_free (fork, EMPTY);
		1119	#endif
899	array_free (prepare, EMPTY0);	1120	array_free (prepare, EMPTY);
900	array_free (check, EMPTY0);	1121	array_free (check, EMPTY);
901		1122
902	method = 0;	1123	backend = 0;
903	}	1124	}
904		1125
905	static void	1126	void inline_size infy_fork (EV_P);
		1127
		1128	void inline_size
906	loop_fork (EV_P)	1129	loop_fork (EV_P)
907	{	1130	{
908	#if EV_USE_PORT	1131	#if EV_USE_PORT
909	if (method == EVBACKEND_PORT ) port_fork (EV_A);	1132	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
910	#endif	1133	#endif
911	#if EV_USE_KQUEUE	1134	#if EV_USE_KQUEUE
912	if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1135	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
913	#endif	1136	#endif
914	#if EV_USE_EPOLL	1137	#if EV_USE_EPOLL
915	if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1138	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1139	#endif
		1140	#if EV_USE_INOTIFY
		1141	infy_fork (EV_A);
916	#endif	1142	#endif
917		1143
918	if (ev_is_active (&sigev))	1144	if (ev_is_active (&sigev))
919	{	1145	{
920	/* default loop */	1146	/* default loop */
…		…
941		1167
942	memset (loop, 0, sizeof (struct ev_loop));	1168	memset (loop, 0, sizeof (struct ev_loop));
943		1169
944	loop_init (EV_A_ flags);	1170	loop_init (EV_A_ flags);
945		1171
946	if (ev_method (EV_A))	1172	if (ev_backend (EV_A))
947	return loop;	1173	return loop;
948		1174
949	return 0;	1175	return 0;
950	}	1176	}
951		1177
…		…
984	ev_default_loop_ptr = 1;	1210	ev_default_loop_ptr = 1;
985	#endif	1211	#endif
986		1212
987	loop_init (EV_A_ flags);	1213	loop_init (EV_A_ flags);
988		1214
989	if (ev_method (EV_A))	1215	if (ev_backend (EV_A))
990	{	1216	{
991	siginit (EV_A);	1217	siginit (EV_A);
992		1218
993	#ifndef _WIN32	1219	#ifndef _WIN32
994	ev_signal_init (&childev, childcb, SIGCHLD);	1220	ev_signal_init (&childev, childcb, SIGCHLD);
…		…
1030	{	1256	{
1031	#if EV_MULTIPLICITY	1257	#if EV_MULTIPLICITY
1032	struct ev_loop *loop = ev_default_loop_ptr;	1258	struct ev_loop *loop = ev_default_loop_ptr;
1033	#endif	1259	#endif
1034		1260
1035	if (method)	1261	if (backend)
1036	postfork = 1;	1262	postfork = 1;
1037	}	1263	}
1038		1264
1039	/*****************************************************************************/	1265	/*****************************************************************************/
1040		1266
1041	static int	1267	void
1042	any_pending (EV_P)	1268	ev_invoke (EV_P_ void *w, int revents)
1043	{	1269	{
1044	int pri;	1270	EV_CB_INVOKE ((W)w, revents);
1045
1046	for (pri = NUMPRI; pri--; )
1047	if (pendingcnt [pri])
1048	return 1;
1049
1050	return 0;
1051	}	1271	}
1052		1272
1053	inline void	1273	void inline_speed
1054	call_pending (EV_P)	1274	call_pending (EV_P)
1055	{	1275	{
1056	int pri;	1276	int pri;
1057		1277
1058	for (pri = NUMPRI; pri--; )	1278	for (pri = NUMPRI; pri--; )
…		…
1060	{	1280	{
1061	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1281	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1062		1282
1063	if (expect_true (p->w))	1283	if (expect_true (p->w))
1064	{	1284	{
		1285	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1286
1065	p->w->pending = 0;	1287	p->w->pending = 0;
1066	EV_CB_INVOKE (p->w, p->events);	1288	EV_CB_INVOKE (p->w, p->events);
1067	}	1289	}
1068	}	1290	}
1069	}	1291	}
1070		1292
1071	inline void	1293	void inline_size
1072	timers_reify (EV_P)	1294	timers_reify (EV_P)
1073	{	1295	{
1074	while (timercnt && ((WT)timers [0])->at <= mn_now)	1296	while (timercnt && ((WT)timers [0])->at <= mn_now)
1075	{	1297	{
1076	struct ev_timer *w = timers [0];	1298	ev_timer *w = (ev_timer *)timers [0];
1077		1299
1078	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1300	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1079		1301
1080	/* first reschedule or stop timer */	1302	/* first reschedule or stop timer */
1081	if (w->repeat)	1303	if (w->repeat)
1082	{	1304	{
1083	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1305	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1084		1306
1085	((WT)w)->at += w->repeat;	1307	((WT)w)->at += w->repeat;
1086	if (((WT)w)->at < mn_now)	1308	if (((WT)w)->at < mn_now)
1087	((WT)w)->at = mn_now;	1309	((WT)w)->at = mn_now;
1088		1310
1089	downheap ((WT *)timers, timercnt, 0);	1311	downheap (timers, timercnt, 0);
1090	}	1312	}
1091	else	1313	else
1092	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1314	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1093		1315
1094	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1316	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1095	}	1317	}
1096	}	1318	}
1097		1319
1098	#if EV_PERIODICS	1320	#if EV_PERIODIC_ENABLE
1099	inline void	1321	void inline_size
1100	periodics_reify (EV_P)	1322	periodics_reify (EV_P)
1101	{	1323	{
1102	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1324	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1103	{	1325	{
1104	struct ev_periodic *w = periodics [0];	1326	ev_periodic *w = (ev_periodic *)periodics [0];
1105		1327
1106	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1328	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1107		1329
1108	/* first reschedule or stop timer */	1330	/* first reschedule or stop timer */
1109	if (w->reschedule_cb)	1331	if (w->reschedule_cb)
1110	{	1332	{
1111	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1333	((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));	1334	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1113	downheap ((WT *)periodics, periodiccnt, 0);	1335	downheap (periodics, periodiccnt, 0);
1114	}	1336	}
1115	else if (w->interval)	1337	else if (w->interval)
1116	{	1338	{
1117	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1339	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1340	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));	1341	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);	1342	downheap (periodics, periodiccnt, 0);
1120	}	1343	}
1121	else	1344	else
1122	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1345	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1123		1346
1124	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1347	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1125	}	1348	}
1126	}	1349	}
1127		1350
1128	static void	1351	static void noinline
1129	periodics_reschedule (EV_P)	1352	periodics_reschedule (EV_P)
1130	{	1353	{
1131	int i;	1354	int i;
1132		1355
1133	/* adjust periodics after time jump */	1356	/* adjust periodics after time jump */
1134	for (i = 0; i < periodiccnt; ++i)	1357	for (i = 0; i < periodiccnt; ++i)
1135	{	1358	{
1136	struct ev_periodic *w = periodics [i];	1359	ev_periodic *w = (ev_periodic *)periodics [i];
1137		1360
1138	if (w->reschedule_cb)	1361	if (w->reschedule_cb)
1139	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1362	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1140	else if (w->interval)	1363	else if (w->interval)
1141	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1364	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1142	}	1365	}
1143		1366
1144	/* now rebuild the heap */	1367	/* now rebuild the heap */
1145	for (i = periodiccnt >> 1; i--; )	1368	for (i = periodiccnt >> 1; i--; )
1146	downheap ((WT *)periodics, periodiccnt, i);	1369	downheap (periodics, periodiccnt, i);
1147	}	1370	}
1148	#endif	1371	#endif
1149		1372
1150	inline int	1373	#if EV_IDLE_ENABLE
1151	time_update_monotonic (EV_P)	1374	void inline_size
		1375	idle_reify (EV_P)
1152	{	1376	{
		1377	if (expect_false (idleall))
		1378	{
		1379	int pri;
		1380
		1381	for (pri = NUMPRI; pri--; )
		1382	{
		1383	if (pendingcnt [pri])
		1384	break;
		1385
		1386	if (idlecnt [pri])
		1387	{
		1388	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1389	break;
		1390	}
		1391	}
		1392	}
		1393	}
		1394	#endif
		1395
		1396	void inline_speed
		1397	time_update (EV_P_ ev_tstamp max_block)
		1398	{
		1399	int i;
		1400
		1401	#if EV_USE_MONOTONIC
		1402	if (expect_true (have_monotonic))
		1403	{
		1404	ev_tstamp odiff = rtmn_diff;
		1405
1153	mn_now = get_clock ();	1406	mn_now = get_clock ();
1154		1407
		1408	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1409	/* interpolate in the meantime */
1155	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1410	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1156	{	1411	{
1157	ev_rt_now = rtmn_diff + mn_now;	1412	ev_rt_now = rtmn_diff + mn_now;
1158	return 0;	1413	return;
1159	}	1414	}
1160	else	1415
1161	{
1162	now_floor = mn_now;	1416	now_floor = mn_now;
1163	ev_rt_now = ev_time ();	1417	ev_rt_now = ev_time ();
1164	return 1;
1165	}
1166	}
1167		1418
1168	inline void	1419	/* loop a few times, before making important decisions.
1169	time_update (EV_P)	1420	* on the choice of "4": one iteration isn't enough,
1170	{	1421	* in case we get preempted during the calls to
1171	int i;	1422	* ev_time and get_clock. a second call is almost guaranteed
1172		1423	* to succeed in that case, though. and looping a few more times
1173	#if EV_USE_MONOTONIC	1424	* doesn't hurt either as we only do this on time-jumps or
1174	if (expect_true (have_monotonic))	1425	* in the unlikely event of having been preempted here.
1175	{	1426	*/
1176	if (time_update_monotonic (EV_A))	1427	for (i = 4; --i; )
1177	{	1428	{
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;	1429	rtmn_diff = ev_rt_now - mn_now;
1183		1430
1184	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1431	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1185	return; /* all is well */	1432	return; /* all is well */
1186		1433
1187	ev_rt_now = ev_time ();	1434	ev_rt_now = ev_time ();
1188	mn_now = get_clock ();	1435	mn_now = get_clock ();
1189	now_floor = mn_now;	1436	now_floor = mn_now;
1190	}	1437	}
1191		1438
1192	# if EV_PERIODICS	1439	# if EV_PERIODIC_ENABLE
		1440	periodics_reschedule (EV_A);
		1441	# endif
		1442	/* no timer adjustment, as the monotonic clock doesn't jump */
		1443	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
		1444	}
		1445	else
		1446	#endif
		1447	{
		1448	ev_rt_now = ev_time ();
		1449
		1450	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
		1451	{
		1452	#if EV_PERIODIC_ENABLE
1193	periodics_reschedule (EV_A);	1453	periodics_reschedule (EV_A);
1194	# endif	1454	#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 */	1455	/* adjust timers. this is easy, as the offset is the same for all of them */
1211	for (i = 0; i < timercnt; ++i)	1456	for (i = 0; i < timercnt; ++i)
1212	((WT)timers [i])->at += ev_rt_now - mn_now;	1457	((WT)timers [i])->at += ev_rt_now - mn_now;
1213	}	1458	}
1214		1459
1215	mn_now = ev_rt_now;	1460	mn_now = ev_rt_now;
…		…
1231	static int loop_done;	1476	static int loop_done;
1232		1477
1233	void	1478	void
1234	ev_loop (EV_P_ int flags)	1479	ev_loop (EV_P_ int flags)
1235	{	1480	{
1236	double block;
1237	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1481	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1482	? EVUNLOOP_ONE
		1483	: EVUNLOOP_CANCEL;
1238		1484
1239	while (activecnt)	1485	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1486
		1487	do
1240	{	1488	{
		1489	#ifndef _WIN32
		1490	if (expect_false (curpid)) /* penalise the forking check even more */
		1491	if (expect_false (getpid () != curpid))
		1492	{
		1493	curpid = getpid ();
		1494	postfork = 1;
		1495	}
		1496	#endif
		1497
		1498	#if EV_FORK_ENABLE
		1499	/* we might have forked, so queue fork handlers */
		1500	if (expect_false (postfork))
		1501	if (forkcnt)
		1502	{
		1503	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1504	call_pending (EV_A);
		1505	}
		1506	#endif
		1507
1241	/* queue check watchers (and execute them) */	1508	/* queue prepare watchers (and execute them) */
1242	if (expect_false (preparecnt))	1509	if (expect_false (preparecnt))
1243	{	1510	{
1244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1511	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1245	call_pending (EV_A);	1512	call_pending (EV_A);
1246	}	1513	}
1247		1514
		1515	if (expect_false (!activecnt))
		1516	break;
		1517
1248	/* we might have forked, so reify kernel state if necessary */	1518	/* we might have forked, so reify kernel state if necessary */
1249	if (expect_false (postfork))	1519	if (expect_false (postfork))
1250	loop_fork (EV_A);	1520	loop_fork (EV_A);
1251		1521
1252	/* update fd-related kernel structures */	1522	/* update fd-related kernel structures */
1253	fd_reify (EV_A);	1523	fd_reify (EV_A);
1254		1524
1255	/* calculate blocking time */	1525	/* calculate blocking time */
		1526	{
		1527	ev_tstamp waittime = 0.;
		1528	ev_tstamp sleeptime = 0.;
1256		1529
1257	/* we only need this for !monotonic clock or timers, but as we basically	1530	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	{	1531	{
1265	ev_rt_now = ev_time ();	1532	/* update time to cancel out callback processing overhead */
1266	mn_now = ev_rt_now;	1533	time_update (EV_A_ 1e100);
1267	}
1268		1534
1269	if (flags & EVLOOP_NONBLOCK || idlecnt)
1270	block = 0.;
1271	else
1272	{
1273	block = MAX_BLOCKTIME;	1535	waittime = MAX_BLOCKTIME;
1274		1536
1275	if (timercnt)	1537	if (timercnt)
1276	{	1538	{
1277	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1539	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1278	if (block > to) block = to;	1540	if (waittime > to) waittime = to;
1279	}	1541	}
1280		1542
1281	#if EV_PERIODICS	1543	#if EV_PERIODIC_ENABLE
1282	if (periodiccnt)	1544	if (periodiccnt)
1283	{	1545	{
1284	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1546	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1285	if (block > to) block = to;	1547	if (waittime > to) waittime = to;
1286	}	1548	}
1287	#endif	1549	#endif
1288		1550
1289	if (expect_false (block < 0.)) block = 0.;	1551	if (expect_false (waittime < timeout_blocktime))
		1552	waittime = timeout_blocktime;
		1553
		1554	sleeptime = waittime - backend_fudge;
		1555
		1556	if (expect_true (sleeptime > io_blocktime))
		1557	sleeptime = io_blocktime;
		1558
		1559	if (sleeptime)
		1560	{
		1561	ev_sleep (sleeptime);
		1562	waittime -= sleeptime;
		1563	}
1290	}	1564	}
1291		1565
1292	method_poll (EV_A_ block);	1566	++loop_count;
		1567	backend_poll (EV_A_ waittime);
1293		1568
1294	/* update ev_rt_now, do magic */	1569	/* update ev_rt_now, do magic */
1295	time_update (EV_A);	1570	time_update (EV_A_ waittime + sleeptime);
		1571	}
1296		1572
1297	/* queue pending timers and reschedule them */	1573	/* queue pending timers and reschedule them */
1298	timers_reify (EV_A); /* relative timers called last */	1574	timers_reify (EV_A); /* relative timers called last */
1299	#if EV_PERIODICS	1575	#if EV_PERIODIC_ENABLE
1300	periodics_reify (EV_A); /* absolute timers called first */	1576	periodics_reify (EV_A); /* absolute timers called first */
1301	#endif	1577	#endif
1302		1578
		1579	#if EV_IDLE_ENABLE
1303	/* queue idle watchers unless io or timers are pending */	1580	/* queue idle watchers unless other events are pending */
1304	if (idlecnt && !any_pending (EV_A))	1581	idle_reify (EV_A);
1305	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1582	#endif
1306		1583
1307	/* queue check watchers, to be executed first */	1584	/* queue check watchers, to be executed first */
1308	if (expect_false (checkcnt))	1585	if (expect_false (checkcnt))
1309	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1586	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1310		1587
1311	call_pending (EV_A);	1588	call_pending (EV_A);
1312		1589
1313	if (expect_false (loop_done))
1314	break;
1315	}	1590	}
		1591	while (expect_true (activecnt && !loop_done));
1316		1592
1317	if (loop_done != 2)	1593	if (loop_done == EVUNLOOP_ONE)
1318	loop_done = 0;	1594	loop_done = EVUNLOOP_CANCEL;
1319	}	1595	}
1320		1596
1321	void	1597	void
1322	ev_unloop (EV_P_ int how)	1598	ev_unloop (EV_P_ int how)
1323	{	1599	{
1324	loop_done = how;	1600	loop_done = how;
1325	}	1601	}
1326		1602
1327	/*****************************************************************************/	1603	/*****************************************************************************/
1328		1604
1329	inline void	1605	void inline_size
1330	wlist_add (WL *head, WL elem)	1606	wlist_add (WL *head, WL elem)
1331	{	1607	{
1332	elem->next = *head;	1608	elem->next = *head;
1333	*head = elem;	1609	*head = elem;
1334	}	1610	}
1335		1611
1336	inline void	1612	void inline_size
1337	wlist_del (WL *head, WL elem)	1613	wlist_del (WL *head, WL elem)
1338	{	1614	{
1339	while (*head)	1615	while (*head)
1340	{	1616	{
1341	if (*head == elem)	1617	if (*head == elem)
…		…
1346		1622
1347	head = &(*head)->next;	1623	head = &(*head)->next;
1348	}	1624	}
1349	}	1625	}
1350		1626
1351	inline void	1627	void inline_speed
1352	ev_clear_pending (EV_P_ W w)	1628	clear_pending (EV_P_ W w)
1353	{	1629	{
1354	if (w->pending)	1630	if (w->pending)
1355	{	1631	{
1356	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1632	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1357	w->pending = 0;	1633	w->pending = 0;
1358	}	1634	}
1359	}	1635	}
1360		1636
1361	inline void	1637	int
		1638	ev_clear_pending (EV_P_ void *w)
		1639	{
		1640	W w_ = (W)w;
		1641	int pending = w_->pending;
		1642
		1643	if (expect_true (pending))
		1644	{
		1645	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1646	w_->pending = 0;
		1647	p->w = 0;
		1648	return p->events;
		1649	}
		1650	else
		1651	return 0;
		1652	}
		1653
		1654	void inline_size
		1655	pri_adjust (EV_P_ W w)
		1656	{
		1657	int pri = w->priority;
		1658	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1659	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1660	w->priority = pri;
		1661	}
		1662
		1663	void inline_speed
1362	ev_start (EV_P_ W w, int active)	1664	ev_start (EV_P_ W w, int active)
1363	{	1665	{
1364	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1666	pri_adjust (EV_A_ w);
1365	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1366
1367	w->active = active;	1667	w->active = active;
1368	ev_ref (EV_A);	1668	ev_ref (EV_A);
1369	}	1669	}
1370		1670
1371	inline void	1671	void inline_size
1372	ev_stop (EV_P_ W w)	1672	ev_stop (EV_P_ W w)
1373	{	1673	{
1374	ev_unref (EV_A);	1674	ev_unref (EV_A);
1375	w->active = 0;	1675	w->active = 0;
1376	}	1676	}
1377		1677
1378	/*****************************************************************************/	1678	/*****************************************************************************/
1379		1679
1380	void	1680	void noinline
1381	ev_io_start (EV_P_ struct ev_io *w)	1681	ev_io_start (EV_P_ ev_io *w)
1382	{	1682	{
1383	int fd = w->fd;	1683	int fd = w->fd;
1384		1684
1385	if (expect_false (ev_is_active (w)))	1685	if (expect_false (ev_is_active (w)))
1386	return;	1686	return;
1387		1687
1388	assert (("ev_io_start called with negative fd", fd >= 0));	1688	assert (("ev_io_start called with negative fd", fd >= 0));
1389		1689
1390	ev_start (EV_A_ (W)w, 1);	1690	ev_start (EV_A_ (W)w, 1);
1391	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1691	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1392	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1692	wlist_add (&anfds[fd].head, (WL)w);
1393		1693
1394	fd_change (EV_A_ fd);	1694	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1695	w->events &= ~EV_IOFDSET;
1395	}	1696	}
1396		1697
1397	void	1698	void noinline
1398	ev_io_stop (EV_P_ struct ev_io *w)	1699	ev_io_stop (EV_P_ ev_io *w)
1399	{	1700	{
1400	ev_clear_pending (EV_A_ (W)w);	1701	clear_pending (EV_A_ (W)w);
1401	if (expect_false (!ev_is_active (w)))	1702	if (expect_false (!ev_is_active (w)))
1402	return;	1703	return;
1403		1704
1404	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1705	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1405		1706
1406	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1707	wlist_del (&anfds[w->fd].head, (WL)w);
1407	ev_stop (EV_A_ (W)w);	1708	ev_stop (EV_A_ (W)w);
1408		1709
1409	fd_change (EV_A_ w->fd);	1710	fd_change (EV_A_ w->fd, 1);
1410	}	1711	}
1411		1712
1412	void	1713	void noinline
1413	ev_timer_start (EV_P_ struct ev_timer *w)	1714	ev_timer_start (EV_P_ ev_timer *w)
1414	{	1715	{
1415	if (expect_false (ev_is_active (w)))	1716	if (expect_false (ev_is_active (w)))
1416	return;	1717	return;
1417		1718
1418	((WT)w)->at += mn_now;	1719	((WT)w)->at += mn_now;
1419		1720
1420	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1721	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1421		1722
1422	ev_start (EV_A_ (W)w, ++timercnt);	1723	ev_start (EV_A_ (W)w, ++timercnt);
1423	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);	1724	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1424	timers [timercnt - 1] = w;	1725	timers [timercnt - 1] = (WT)w;
1425	upheap ((WT *)timers, timercnt - 1);	1726	upheap (timers, timercnt - 1);
1426		1727
1427	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1728	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1428	}	1729	}
1429		1730
1430	void	1731	void noinline
1431	ev_timer_stop (EV_P_ struct ev_timer *w)	1732	ev_timer_stop (EV_P_ ev_timer *w)
1432	{	1733	{
1433	ev_clear_pending (EV_A_ (W)w);	1734	clear_pending (EV_A_ (W)w);
1434	if (expect_false (!ev_is_active (w)))	1735	if (expect_false (!ev_is_active (w)))
1435	return;	1736	return;
1436		1737
1437	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1738	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1438		1739
		1740	{
		1741	int active = ((W)w)->active;
		1742
1439	if (expect_true (((W)w)->active < timercnt--))	1743	if (expect_true (--active < --timercnt))
1440	{	1744	{
1441	timers [((W)w)->active - 1] = timers [timercnt];	1745	timers [active] = timers [timercnt];
1442	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1746	adjustheap (timers, timercnt, active);
1443	}	1747	}
		1748	}
1444		1749
1445	((WT)w)->at -= mn_now;	1750	((WT)w)->at -= mn_now;
1446		1751
1447	ev_stop (EV_A_ (W)w);	1752	ev_stop (EV_A_ (W)w);
1448	}	1753	}
1449		1754
1450	void	1755	void noinline
1451	ev_timer_again (EV_P_ struct ev_timer *w)	1756	ev_timer_again (EV_P_ ev_timer *w)
1452	{	1757	{
1453	if (ev_is_active (w))	1758	if (ev_is_active (w))
1454	{	1759	{
1455	if (w->repeat)	1760	if (w->repeat)
1456	{	1761	{
1457	((WT)w)->at = mn_now + w->repeat;	1762	((WT)w)->at = mn_now + w->repeat;
1458	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1763	adjustheap (timers, timercnt, ((W)w)->active - 1);
1459	}	1764	}
1460	else	1765	else
1461	ev_timer_stop (EV_A_ w);	1766	ev_timer_stop (EV_A_ w);
1462	}	1767	}
1463	else if (w->repeat)	1768	else if (w->repeat)
…		…
1465	w->at = w->repeat;	1770	w->at = w->repeat;
1466	ev_timer_start (EV_A_ w);	1771	ev_timer_start (EV_A_ w);
1467	}	1772	}
1468	}	1773	}
1469		1774
1470	#if EV_PERIODICS	1775	#if EV_PERIODIC_ENABLE
1471	void	1776	void noinline
1472	ev_periodic_start (EV_P_ struct ev_periodic *w)	1777	ev_periodic_start (EV_P_ ev_periodic *w)
1473	{	1778	{
1474	if (expect_false (ev_is_active (w)))	1779	if (expect_false (ev_is_active (w)))
1475	return;	1780	return;
1476		1781
1477	if (w->reschedule_cb)	1782	if (w->reschedule_cb)
1478	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1783	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1479	else if (w->interval)	1784	else if (w->interval)
1480	{	1785	{
1481	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1786	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 */	1787	/* 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;	1788	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1484	}	1789	}
		1790	else
		1791	((WT)w)->at = w->offset;
1485		1792
1486	ev_start (EV_A_ (W)w, ++periodiccnt);	1793	ev_start (EV_A_ (W)w, ++periodiccnt);
1487	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1794	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1488	periodics [periodiccnt - 1] = w;	1795	periodics [periodiccnt - 1] = (WT)w;
1489	upheap ((WT *)periodics, periodiccnt - 1);	1796	upheap (periodics, periodiccnt - 1);
1490		1797
1491	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1798	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1492	}	1799	}
1493		1800
1494	void	1801	void noinline
1495	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1802	ev_periodic_stop (EV_P_ ev_periodic *w)
1496	{	1803	{
1497	ev_clear_pending (EV_A_ (W)w);	1804	clear_pending (EV_A_ (W)w);
1498	if (expect_false (!ev_is_active (w)))	1805	if (expect_false (!ev_is_active (w)))
1499	return;	1806	return;
1500		1807
1501	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1808	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1502		1809
		1810	{
		1811	int active = ((W)w)->active;
		1812
1503	if (expect_true (((W)w)->active < periodiccnt--))	1813	if (expect_true (--active < --periodiccnt))
1504	{	1814	{
1505	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1815	periodics [active] = periodics [periodiccnt];
1506	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1816	adjustheap (periodics, periodiccnt, active);
1507	}	1817	}
		1818	}
1508		1819
1509	ev_stop (EV_A_ (W)w);	1820	ev_stop (EV_A_ (W)w);
1510	}	1821	}
1511		1822
1512	void	1823	void noinline
1513	ev_periodic_again (EV_P_ struct ev_periodic *w)	1824	ev_periodic_again (EV_P_ ev_periodic *w)
1514	{	1825	{
1515	/* TODO: use adjustheap and recalculation */	1826	/* TODO: use adjustheap and recalculation */
1516	ev_periodic_stop (EV_A_ w);	1827	ev_periodic_stop (EV_A_ w);
1517	ev_periodic_start (EV_A_ w);	1828	ev_periodic_start (EV_A_ w);
1518	}	1829	}
1519	#endif	1830	#endif
1520		1831
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	1832	#ifndef SA_RESTART
1588	# define SA_RESTART 0	1833	# define SA_RESTART 0
1589	#endif	1834	#endif
1590		1835
1591	void	1836	void noinline
1592	ev_signal_start (EV_P_ struct ev_signal *w)	1837	ev_signal_start (EV_P_ ev_signal *w)
1593	{	1838	{
1594	#if EV_MULTIPLICITY	1839	#if EV_MULTIPLICITY
1595	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1840	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1596	#endif	1841	#endif
1597	if (expect_false (ev_is_active (w)))	1842	if (expect_false (ev_is_active (w)))
1598	return;	1843	return;
1599		1844
1600	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1845	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1601		1846
		1847	{
		1848	#ifndef _WIN32
		1849	sigset_t full, prev;
		1850	sigfillset (&full);
		1851	sigprocmask (SIG_SETMASK, &full, &prev);
		1852	#endif
		1853
		1854	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1855
		1856	#ifndef _WIN32
		1857	sigprocmask (SIG_SETMASK, &prev, 0);
		1858	#endif
		1859	}
		1860
1602	ev_start (EV_A_ (W)w, 1);	1861	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);	1862	wlist_add (&signals [w->signum - 1].head, (WL)w);
1605		1863
1606	if (!((WL)w)->next)	1864	if (!((WL)w)->next)
1607	{	1865	{
1608	#if _WIN32	1866	#if _WIN32
1609	signal (w->signum, sighandler);	1867	signal (w->signum, sighandler);
…		…
1615	sigaction (w->signum, &sa, 0);	1873	sigaction (w->signum, &sa, 0);
1616	#endif	1874	#endif
1617	}	1875	}
1618	}	1876	}
1619		1877
1620	void	1878	void noinline
1621	ev_signal_stop (EV_P_ struct ev_signal *w)	1879	ev_signal_stop (EV_P_ ev_signal *w)
1622	{	1880	{
1623	ev_clear_pending (EV_A_ (W)w);	1881	clear_pending (EV_A_ (W)w);
1624	if (expect_false (!ev_is_active (w)))	1882	if (expect_false (!ev_is_active (w)))
1625	return;	1883	return;
1626		1884
1627	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1885	wlist_del (&signals [w->signum - 1].head, (WL)w);
1628	ev_stop (EV_A_ (W)w);	1886	ev_stop (EV_A_ (W)w);
1629		1887
1630	if (!signals [w->signum - 1].head)	1888	if (!signals [w->signum - 1].head)
1631	signal (w->signum, SIG_DFL);	1889	signal (w->signum, SIG_DFL);
1632	}	1890	}
1633		1891
1634	void	1892	void
1635	ev_child_start (EV_P_ struct ev_child *w)	1893	ev_child_start (EV_P_ ev_child *w)
1636	{	1894	{
1637	#if EV_MULTIPLICITY	1895	#if EV_MULTIPLICITY
1638	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1896	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1639	#endif	1897	#endif
1640	if (expect_false (ev_is_active (w)))	1898	if (expect_false (ev_is_active (w)))
1641	return;	1899	return;
1642		1900
1643	ev_start (EV_A_ (W)w, 1);	1901	ev_start (EV_A_ (W)w, 1);
1644	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1902	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1645	}	1903	}
1646		1904
1647	void	1905	void
1648	ev_child_stop (EV_P_ struct ev_child *w)	1906	ev_child_stop (EV_P_ ev_child *w)
1649	{	1907	{
1650	ev_clear_pending (EV_A_ (W)w);	1908	clear_pending (EV_A_ (W)w);
1651	if (expect_false (!ev_is_active (w)))	1909	if (expect_false (!ev_is_active (w)))
1652	return;	1910	return;
1653		1911
1654	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1912	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1655	ev_stop (EV_A_ (W)w);	1913	ev_stop (EV_A_ (W)w);
1656	}	1914	}
1657		1915
		1916	#if EV_STAT_ENABLE
		1917
		1918	# ifdef _WIN32
		1919	# undef lstat
		1920	# define lstat(a,b) _stati64 (a,b)
		1921	# endif
		1922
		1923	#define DEF_STAT_INTERVAL 5.0074891
		1924	#define MIN_STAT_INTERVAL 0.1074891
		1925
		1926	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1927
		1928	#if EV_USE_INOTIFY
		1929	# define EV_INOTIFY_BUFSIZE 8192
		1930
		1931	static void noinline
		1932	infy_add (EV_P_ ev_stat *w)
		1933	{
		1934	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);
		1935
		1936	if (w->wd < 0)
		1937	{
		1938	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1939
		1940	/* monitor some parent directory for speedup hints */
		1941	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1942	{
		1943	char path [4096];
		1944	strcpy (path, w->path);
		1945
		1946	do
		1947	{
		1948	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1949	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1950
		1951	char *pend = strrchr (path, '/');
		1952
		1953	if (!pend)
		1954	break; /* whoops, no '/', complain to your admin */
		1955
		1956	*pend = 0;
		1957	w->wd = inotify_add_watch (fs_fd, path, mask);
		1958	}
		1959	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1960	}
		1961	}
		1962	else
		1963	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1964
		1965	if (w->wd >= 0)
		1966	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1967	}
		1968
		1969	static void noinline
		1970	infy_del (EV_P_ ev_stat *w)
		1971	{
		1972	int slot;
		1973	int wd = w->wd;
		1974
		1975	if (wd < 0)
		1976	return;
		1977
		1978	w->wd = -2;
		1979	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1980	wlist_del (&fs_hash [slot].head, (WL)w);
		1981
		1982	/* remove this watcher, if others are watching it, they will rearm */
		1983	inotify_rm_watch (fs_fd, wd);
		1984	}
		1985
		1986	static void noinline
		1987	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1988	{
		1989	if (slot < 0)
		1990	/* overflow, need to check for all hahs slots */
		1991	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1992	infy_wd (EV_A_ slot, wd, ev);
		1993	else
		1994	{
		1995	WL w_;
		1996
		1997	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		1998	{
		1999	ev_stat *w = (ev_stat *)w_;
		2000	w_ = w_->next; /* lets us remove this watcher and all before it */
		2001
		2002	if (w->wd == wd || wd == -1)
		2003	{
		2004	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2005	{
		2006	w->wd = -1;
		2007	infy_add (EV_A_ w); /* re-add, no matter what */
		2008	}
		2009
		2010	stat_timer_cb (EV_A_ &w->timer, 0);
		2011	}
		2012	}
		2013	}
		2014	}
		2015
		2016	static void
		2017	infy_cb (EV_P_ ev_io *w, int revents)
		2018	{
		2019	char buf [EV_INOTIFY_BUFSIZE];
		2020	struct inotify_event *ev = (struct inotify_event *)buf;
		2021	int ofs;
		2022	int len = read (fs_fd, buf, sizeof (buf));
		2023
		2024	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2025	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2026	}
		2027
		2028	void inline_size
		2029	infy_init (EV_P)
		2030	{
		2031	if (fs_fd != -2)
		2032	return;
		2033
		2034	fs_fd = inotify_init ();
		2035
		2036	if (fs_fd >= 0)
		2037	{
		2038	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2039	ev_set_priority (&fs_w, EV_MAXPRI);
		2040	ev_io_start (EV_A_ &fs_w);
		2041	}
		2042	}
		2043
		2044	void inline_size
		2045	infy_fork (EV_P)
		2046	{
		2047	int slot;
		2048
		2049	if (fs_fd < 0)
		2050	return;
		2051
		2052	close (fs_fd);
		2053	fs_fd = inotify_init ();
		2054
		2055	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2056	{
		2057	WL w_ = fs_hash [slot].head;
		2058	fs_hash [slot].head = 0;
		2059
		2060	while (w_)
		2061	{
		2062	ev_stat *w = (ev_stat *)w_;
		2063	w_ = w_->next; /* lets us add this watcher */
		2064
		2065	w->wd = -1;
		2066
		2067	if (fs_fd >= 0)
		2068	infy_add (EV_A_ w); /* re-add, no matter what */
		2069	else
		2070	ev_timer_start (EV_A_ &w->timer);
		2071	}
		2072
		2073	}
		2074	}
		2075
		2076	#endif
		2077
		2078	void
		2079	ev_stat_stat (EV_P_ ev_stat *w)
		2080	{
		2081	if (lstat (w->path, &w->attr) < 0)
		2082	w->attr.st_nlink = 0;
		2083	else if (!w->attr.st_nlink)
		2084	w->attr.st_nlink = 1;
		2085	}
		2086
		2087	static void noinline
		2088	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		2089	{
		2090	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2091
		2092	/* we copy this here each the time so that */
		2093	/* prev has the old value when the callback gets invoked */
		2094	w->prev = w->attr;
		2095	ev_stat_stat (EV_A_ w);
		2096
		2097	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2098	if (
		2099	w->prev.st_dev != w->attr.st_dev
		2100	|| w->prev.st_ino != w->attr.st_ino
		2101	|| w->prev.st_mode != w->attr.st_mode
		2102	|| w->prev.st_nlink != w->attr.st_nlink
		2103	|| w->prev.st_uid != w->attr.st_uid
		2104	|| w->prev.st_gid != w->attr.st_gid
		2105	|| w->prev.st_rdev != w->attr.st_rdev
		2106	|| w->prev.st_size != w->attr.st_size
		2107	|| w->prev.st_atime != w->attr.st_atime
		2108	|| w->prev.st_mtime != w->attr.st_mtime
		2109	|| w->prev.st_ctime != w->attr.st_ctime
		2110	) {
		2111	#if EV_USE_INOTIFY
		2112	infy_del (EV_A_ w);
		2113	infy_add (EV_A_ w);
		2114	ev_stat_stat (EV_A_ w); /* avoid race... */
		2115	#endif
		2116
		2117	ev_feed_event (EV_A_ w, EV_STAT);
		2118	}
		2119	}
		2120
		2121	void
		2122	ev_stat_start (EV_P_ ev_stat *w)
		2123	{
		2124	if (expect_false (ev_is_active (w)))
		2125	return;
		2126
		2127	/* since we use memcmp, we need to clear any padding data etc. */
		2128	memset (&w->prev, 0, sizeof (ev_statdata));
		2129	memset (&w->attr, 0, sizeof (ev_statdata));
		2130
		2131	ev_stat_stat (EV_A_ w);
		2132
		2133	if (w->interval < MIN_STAT_INTERVAL)
		2134	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2135
		2136	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2137	ev_set_priority (&w->timer, ev_priority (w));
		2138
		2139	#if EV_USE_INOTIFY
		2140	infy_init (EV_A);
		2141
		2142	if (fs_fd >= 0)
		2143	infy_add (EV_A_ w);
		2144	else
		2145	#endif
		2146	ev_timer_start (EV_A_ &w->timer);
		2147
		2148	ev_start (EV_A_ (W)w, 1);
		2149	}
		2150
		2151	void
		2152	ev_stat_stop (EV_P_ ev_stat *w)
		2153	{
		2154	clear_pending (EV_A_ (W)w);
		2155	if (expect_false (!ev_is_active (w)))
		2156	return;
		2157
		2158	#if EV_USE_INOTIFY
		2159	infy_del (EV_A_ w);
		2160	#endif
		2161	ev_timer_stop (EV_A_ &w->timer);
		2162
		2163	ev_stop (EV_A_ (W)w);
		2164	}
		2165	#endif
		2166
		2167	#if EV_IDLE_ENABLE
		2168	void
		2169	ev_idle_start (EV_P_ ev_idle *w)
		2170	{
		2171	if (expect_false (ev_is_active (w)))
		2172	return;
		2173
		2174	pri_adjust (EV_A_ (W)w);
		2175
		2176	{
		2177	int active = ++idlecnt [ABSPRI (w)];
		2178
		2179	++idleall;
		2180	ev_start (EV_A_ (W)w, active);
		2181
		2182	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2183	idles [ABSPRI (w)][active - 1] = w;
		2184	}
		2185	}
		2186
		2187	void
		2188	ev_idle_stop (EV_P_ ev_idle *w)
		2189	{
		2190	clear_pending (EV_A_ (W)w);
		2191	if (expect_false (!ev_is_active (w)))
		2192	return;
		2193
		2194	{
		2195	int active = ((W)w)->active;
		2196
		2197	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2198	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2199
		2200	ev_stop (EV_A_ (W)w);
		2201	--idleall;
		2202	}
		2203	}
		2204	#endif
		2205
		2206	void
		2207	ev_prepare_start (EV_P_ ev_prepare *w)
		2208	{
		2209	if (expect_false (ev_is_active (w)))
		2210	return;
		2211
		2212	ev_start (EV_A_ (W)w, ++preparecnt);
		2213	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2214	prepares [preparecnt - 1] = w;
		2215	}
		2216
		2217	void
		2218	ev_prepare_stop (EV_P_ ev_prepare *w)
		2219	{
		2220	clear_pending (EV_A_ (W)w);
		2221	if (expect_false (!ev_is_active (w)))
		2222	return;
		2223
		2224	{
		2225	int active = ((W)w)->active;
		2226	prepares [active - 1] = prepares [--preparecnt];
		2227	((W)prepares [active - 1])->active = active;
		2228	}
		2229
		2230	ev_stop (EV_A_ (W)w);
		2231	}
		2232
		2233	void
		2234	ev_check_start (EV_P_ ev_check *w)
		2235	{
		2236	if (expect_false (ev_is_active (w)))
		2237	return;
		2238
		2239	ev_start (EV_A_ (W)w, ++checkcnt);
		2240	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2241	checks [checkcnt - 1] = w;
		2242	}
		2243
		2244	void
		2245	ev_check_stop (EV_P_ ev_check *w)
		2246	{
		2247	clear_pending (EV_A_ (W)w);
		2248	if (expect_false (!ev_is_active (w)))
		2249	return;
		2250
		2251	{
		2252	int active = ((W)w)->active;
		2253	checks [active - 1] = checks [--checkcnt];
		2254	((W)checks [active - 1])->active = active;
		2255	}
		2256
		2257	ev_stop (EV_A_ (W)w);
		2258	}
		2259
		2260	#if EV_EMBED_ENABLE
		2261	void noinline
		2262	ev_embed_sweep (EV_P_ ev_embed *w)
		2263	{
		2264	ev_loop (w->other, EVLOOP_NONBLOCK);
		2265	}
		2266
		2267	static void
		2268	embed_io_cb (EV_P_ ev_io *io, int revents)
		2269	{
		2270	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2271
		2272	if (ev_cb (w))
		2273	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2274	else
		2275	ev_loop (w->other, EVLOOP_NONBLOCK);
		2276	}
		2277
		2278	static void
		2279	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2280	{
		2281	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2282
		2283	{
		2284	struct ev_loop *loop = w->other;
		2285
		2286	while (fdchangecnt)
		2287	{
		2288	fd_reify (EV_A);
		2289	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2290	}
		2291	}
		2292	}
		2293
		2294	#if 0
		2295	static void
		2296	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2297	{
		2298	ev_idle_stop (EV_A_ idle);
		2299	}
		2300	#endif
		2301
		2302	void
		2303	ev_embed_start (EV_P_ ev_embed *w)
		2304	{
		2305	if (expect_false (ev_is_active (w)))
		2306	return;
		2307
		2308	{
		2309	struct ev_loop *loop = w->other;
		2310	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2311	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
		2312	}
		2313
		2314	ev_set_priority (&w->io, ev_priority (w));
		2315	ev_io_start (EV_A_ &w->io);
		2316
		2317	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2318	ev_set_priority (&w->prepare, EV_MINPRI);
		2319	ev_prepare_start (EV_A_ &w->prepare);
		2320
		2321	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2322
		2323	ev_start (EV_A_ (W)w, 1);
		2324	}
		2325
		2326	void
		2327	ev_embed_stop (EV_P_ ev_embed *w)
		2328	{
		2329	clear_pending (EV_A_ (W)w);
		2330	if (expect_false (!ev_is_active (w)))
		2331	return;
		2332
		2333	ev_io_stop (EV_A_ &w->io);
		2334	ev_prepare_stop (EV_A_ &w->prepare);
		2335
		2336	ev_stop (EV_A_ (W)w);
		2337	}
		2338	#endif
		2339
		2340	#if EV_FORK_ENABLE
		2341	void
		2342	ev_fork_start (EV_P_ ev_fork *w)
		2343	{
		2344	if (expect_false (ev_is_active (w)))
		2345	return;
		2346
		2347	ev_start (EV_A_ (W)w, ++forkcnt);
		2348	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2349	forks [forkcnt - 1] = w;
		2350	}
		2351
		2352	void
		2353	ev_fork_stop (EV_P_ ev_fork *w)
		2354	{
		2355	clear_pending (EV_A_ (W)w);
		2356	if (expect_false (!ev_is_active (w)))
		2357	return;
		2358
		2359	{
		2360	int active = ((W)w)->active;
		2361	forks [active - 1] = forks [--forkcnt];
		2362	((W)forks [active - 1])->active = active;
		2363	}
		2364
		2365	ev_stop (EV_A_ (W)w);
		2366	}
		2367	#endif
		2368
1658	/*****************************************************************************/	2369	/*****************************************************************************/
1659		2370
1660	struct ev_once	2371	struct ev_once
1661	{	2372	{
1662	struct ev_io io;	2373	ev_io io;
1663	struct ev_timer to;	2374	ev_timer to;
1664	void (*cb)(int revents, void *arg);	2375	void (*cb)(int revents, void *arg);
1665	void *arg;	2376	void *arg;
1666	};	2377	};
1667		2378
1668	static void	2379	static void
…		…
1677		2388
1678	cb (revents, arg);	2389	cb (revents, arg);
1679	}	2390	}
1680		2391
1681	static void	2392	static void
1682	once_cb_io (EV_P_ struct ev_io *w, int revents)	2393	once_cb_io (EV_P_ ev_io *w, int revents)
1683	{	2394	{
1684	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2395	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1685	}	2396	}
1686		2397
1687	static void	2398	static void
1688	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2399	once_cb_to (EV_P_ ev_timer *w, int revents)
1689	{	2400	{
1690	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2401	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1691	}	2402	}
1692		2403
1693	void	2404	void
…		…
1717	ev_timer_set (&once->to, timeout, 0.);	2428	ev_timer_set (&once->to, timeout, 0.);
1718	ev_timer_start (EV_A_ &once->to);	2429	ev_timer_start (EV_A_ &once->to);
1719	}	2430	}
1720	}	2431	}
1721		2432
		2433	#if EV_MULTIPLICITY
		2434	#include "ev_wrap.h"
		2435	#endif
		2436
1722	#ifdef __cplusplus	2437	#ifdef __cplusplus
1723	}	2438	}
1724	#endif	2439	#endif
1725		2440

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