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Comparing libev/ev.c (file contents):
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC vs.
Revision 1.198 by root, Sun Dec 23 04:45:51 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
…		…
50	# ifndef EV_USE_REALTIME	54	# ifndef EV_USE_REALTIME
51	# define EV_USE_REALTIME 0	55	# define EV_USE_REALTIME 0
52	# endif	56	# endif
53	# endif	57	# endif
54		58
55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	59	# ifndef EV_USE_NANOSLEEP
		60	# if HAVE_NANOSLEEP
56	# define EV_USE_SELECT 1	61	# define EV_USE_NANOSLEEP 1
57	# else	62	# else
58	# define EV_USE_SELECT 0	63	# define EV_USE_NANOSLEEP 0
		64	# endif
59	# endif	65	# endif
60		66
61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	67	# ifndef EV_USE_SELECT
		68	# if HAVE_SELECT && HAVE_SYS_SELECT_H
62	# define EV_USE_POLL 1	69	# define EV_USE_SELECT 1
63	# else	70	# else
64	# define EV_USE_POLL 0	71	# define EV_USE_SELECT 0
		72	# endif
65	# endif	73	# endif
66		74
67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	75	# ifndef EV_USE_POLL
		76	# if HAVE_POLL && HAVE_POLL_H
68	# define EV_USE_EPOLL 1	77	# define EV_USE_POLL 1
69	# else	78	# else
70	# define EV_USE_EPOLL 0	79	# define EV_USE_POLL 0
		80	# endif
71	# endif	81	# endif
72		82
73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	83	# ifndef EV_USE_EPOLL
		84	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
74	# define EV_USE_KQUEUE 1	85	# define EV_USE_EPOLL 1
75	# else	86	# else
76	# define EV_USE_KQUEUE 0	87	# define EV_USE_EPOLL 0
		88	# endif
77	# endif	89	# endif
78		90
79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)	91	# ifndef EV_USE_KQUEUE
		92	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		93	# define EV_USE_KQUEUE 1
		94	# else
		95	# define EV_USE_KQUEUE 0
		96	# endif
		97	# endif
		98
		99	# ifndef EV_USE_PORT
		100	# if HAVE_PORT_H && HAVE_PORT_CREATE
80	# define EV_USE_PORT 1	101	# define EV_USE_PORT 1
81	# else	102	# else
82	# define EV_USE_PORT 0	103	# define EV_USE_PORT 0
		104	# endif
		105	# endif
		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
83	# endif	113	# endif
84		114
85	#endif	115	#endif
86		116
87	#include <math.h>	117	#include <math.h>
…		…
96	#include <sys/types.h>	126	#include <sys/types.h>
97	#include <time.h>	127	#include <time.h>
98		128
99	#include <signal.h>	129	#include <signal.h>
100		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
		134	# include "ev.h"
		135	#endif
		136
101	#ifndef _WIN32	137	#ifndef _WIN32
102	# include <unistd.h>
103	# include <sys/time.h>	138	# include <sys/time.h>
104	# include <sys/wait.h>	139	# include <sys/wait.h>
		140	# include <unistd.h>
105	#else	141	#else
106	# define WIN32_LEAN_AND_MEAN	142	# define WIN32_LEAN_AND_MEAN
107	# include <windows.h>	143	# include <windows.h>
108	# ifndef EV_SELECT_IS_WINSOCKET	144	# ifndef EV_SELECT_IS_WINSOCKET
109	# define EV_SELECT_IS_WINSOCKET 1	145	# define EV_SELECT_IS_WINSOCKET 1
…		…
118		154
119	#ifndef EV_USE_REALTIME	155	#ifndef EV_USE_REALTIME
120	# define EV_USE_REALTIME 0	156	# define EV_USE_REALTIME 0
121	#endif	157	#endif
122		158
		159	#ifndef EV_USE_NANOSLEEP
		160	# define EV_USE_NANOSLEEP 0
		161	#endif
		162
123	#ifndef EV_USE_SELECT	163	#ifndef EV_USE_SELECT
124	# define EV_USE_SELECT 1	164	# define EV_USE_SELECT 1
125	#endif	165	#endif
126		166
127	#ifndef EV_USE_POLL	167	#ifndef EV_USE_POLL
…		…
142		182
143	#ifndef EV_USE_PORT	183	#ifndef EV_USE_PORT
144	# define EV_USE_PORT 0	184	# define EV_USE_PORT 0
145	#endif	185	#endif
146		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
147	/**/	207	/**/
148
149	/* darwin simply cannot be helped */
150	#ifdef __APPLE__
151	# undef EV_USE_POLL
152	# undef EV_USE_KQUEUE
153	#endif
154		208
155	#ifndef CLOCK_MONOTONIC	209	#ifndef CLOCK_MONOTONIC
156	# undef EV_USE_MONOTONIC	210	# undef EV_USE_MONOTONIC
157	# define EV_USE_MONOTONIC 0	211	# define EV_USE_MONOTONIC 0
158	#endif	212	#endif
…		…
160	#ifndef CLOCK_REALTIME	214	#ifndef CLOCK_REALTIME
161	# undef EV_USE_REALTIME	215	# undef EV_USE_REALTIME
162	# define EV_USE_REALTIME 0	216	# define EV_USE_REALTIME 0
163	#endif	217	#endif
164		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
165	#if EV_SELECT_IS_WINSOCKET	234	#if EV_SELECT_IS_WINSOCKET
166	# include <winsock.h>	235	# include <winsock.h>
167	#endif	236	#endif
168		237
169	/**/	238	/**/
170		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
171	#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) */
172	#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) */
173	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
174	/*#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 */
175		253
176	#ifdef EV_H
177	# include EV_H
178	#else
179	# include "ev.h"
180	#endif
181
182	#if __GNUC__ >= 3	254	#if __GNUC__ >= 4
183	# define expect(expr,value) __builtin_expect ((expr),(value))	255	# define expect(expr,value) __builtin_expect ((expr),(value))
184	# define inline static inline	256	# define noinline __attribute__ ((noinline))
185	#else	257	#else
186	# define expect(expr,value) (expr)	258	# define expect(expr,value) (expr)
187	# define inline static	259	# define noinline
		260	# if __STDC_VERSION__ < 199901L
		261	# define inline
		262	# endif
188	#endif	263	#endif
189		264
190	#define expect_false(expr) expect ((expr) != 0, 0)	265	#define expect_false(expr) expect ((expr) != 0, 0)
191	#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
192		274
193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	275	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	276	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
195		277
196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	278	#define EMPTY /* required for microsofts broken pseudo-c compiler */
197	#define EMPTY2(a,b) /* used to suppress some warnings */	279	#define EMPTY2(a,b) /* used to suppress some warnings */
198		280
199	typedef struct ev_watcher *W;	281	typedef ev_watcher *W;
200	typedef struct ev_watcher_list *WL;	282	typedef ev_watcher_list *WL;
201	typedef struct ev_watcher_time *WT;	283	typedef ev_watcher_time *WT;
202		284
		285	#if EV_USE_MONOTONIC
		286	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		287	/* giving it a reasonably high chance of working on typical architetcures */
203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	288	static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		289	#endif
204		290
205	#ifdef _WIN32	291	#ifdef _WIN32
206	# include "ev_win32.c"	292	# include "ev_win32.c"
207	#endif	293	#endif
208		294
209	/*****************************************************************************/	295	/*****************************************************************************/
210		296
211	static void (*syserr_cb)(const char *msg);	297	static void (*syserr_cb)(const char *msg);
212		298
		299	void
213	void ev_set_syserr_cb (void (*cb)(const char *msg))	300	ev_set_syserr_cb (void (*cb)(const char *msg))
214	{	301	{
215	syserr_cb = cb;	302	syserr_cb = cb;
216	}	303	}
217		304
218	static void	305	static void noinline
219	syserr (const char *msg)	306	syserr (const char *msg)
220	{	307	{
221	if (!msg)	308	if (!msg)
222	msg = "(libev) system error";	309	msg = "(libev) system error";
223		310
…		…
230	}	317	}
231	}	318	}
232		319
233	static void *(*alloc)(void *ptr, long size);	320	static void *(*alloc)(void *ptr, long size);
234		321
		322	void
235	void ev_set_allocator (void *(*cb)(void *ptr, long size))	323	ev_set_allocator (void *(*cb)(void *ptr, long size))
236	{	324	{
237	alloc = cb;	325	alloc = cb;
238	}	326	}
239		327
240	static void *	328	inline_speed void *
241	ev_realloc (void *ptr, long size)	329	ev_realloc (void *ptr, long size)
242	{	330	{
243	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	331	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
244		332
245	if (!ptr && size)	333	if (!ptr && size)
…		…
269	typedef struct	357	typedef struct
270	{	358	{
271	W w;	359	W w;
272	int events;	360	int events;
273	} ANPENDING;	361	} ANPENDING;
		362
		363	#if EV_USE_INOTIFY
		364	typedef struct
		365	{
		366	WL head;
		367	} ANFS;
		368	#endif
274		369
275	#if EV_MULTIPLICITY	370	#if EV_MULTIPLICITY
276		371
277	struct ev_loop	372	struct ev_loop
278	{	373	{
…		…
312	gettimeofday (&tv, 0);	407	gettimeofday (&tv, 0);
313	return tv.tv_sec + tv.tv_usec * 1e-6;	408	return tv.tv_sec + tv.tv_usec * 1e-6;
314	#endif	409	#endif
315	}	410	}
316		411
317	inline ev_tstamp	412	ev_tstamp inline_size
318	get_clock (void)	413	get_clock (void)
319	{	414	{
320	#if EV_USE_MONOTONIC	415	#if EV_USE_MONOTONIC
321	if (expect_true (have_monotonic))	416	if (expect_true (have_monotonic))
322	{	417	{
…		…
335	{	430	{
336	return ev_rt_now;	431	return ev_rt_now;
337	}	432	}
338	#endif	433	#endif
339		434
340	#define array_roundsize(type,n) (((n) | 4) & ~3)	435	void
		436	ev_sleep (ev_tstamp delay)
		437	{
		438	if (delay > 0.)
		439	{
		440	#if EV_USE_NANOSLEEP
		441	struct timespec ts;
		442
		443	ts.tv_sec = (time_t)delay;
		444	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		445
		446	nanosleep (&ts, 0);
		447	#elif defined(_WIN32)
		448	Sleep (delay * 1e3);
		449	#else
		450	struct timeval tv;
		451
		452	tv.tv_sec = (time_t)delay;
		453	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		454
		455	select (0, 0, 0, 0, &tv);
		456	#endif
		457	}
		458	}
		459
		460	/*****************************************************************************/
		461
		462	int inline_size
		463	array_nextsize (int elem, int cur, int cnt)
		464	{
		465	int ncur = cur + 1;
		466
		467	do
		468	ncur <<= 1;
		469	while (cnt > ncur);
		470
		471	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		472	if (elem * ncur > 4096)
		473	{
		474	ncur *= elem;
		475	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		476	ncur = ncur - sizeof (void *) * 4;
		477	ncur /= elem;
		478	}
		479
		480	return ncur;
		481	}
		482
		483	static noinline void *
		484	array_realloc (int elem, void *base, int *cur, int cnt)
		485	{
		486	*cur = array_nextsize (elem, *cur, cnt);
		487	return ev_realloc (base, elem * *cur);
		488	}
341		489
342	#define array_needsize(type,base,cur,cnt,init) \	490	#define array_needsize(type,base,cur,cnt,init) \
343	if (expect_false ((cnt) > cur)) \	491	if (expect_false ((cnt) > (cur))) \
344	{ \	492	{ \
345	int newcnt = cur; \	493	int ocur_ = (cur); \
346	do \	494	(base) = (type *)array_realloc \
347	{ \	495	(sizeof (type), (base), &(cur), (cnt)); \
348	newcnt = array_roundsize (type, newcnt << 1); \	496	init ((base) + (ocur_), (cur) - ocur_); \
349	} \
350	while ((cnt) > newcnt); \
351	\
352	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
353	init (base + cur, newcnt - cur); \
354	cur = newcnt; \
355	}	497	}
356		498
		499	#if 0
357	#define array_slim(type,stem) \	500	#define array_slim(type,stem) \
358	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	501	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
359	{ \	502	{ \
360	stem ## max = array_roundsize (stem ## cnt >> 1); \	503	stem ## max = array_roundsize (stem ## cnt >> 1); \
361	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	504	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	505	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
363	}	506	}
		507	#endif
364		508
365	#define array_free(stem, idx) \	509	#define array_free(stem, idx) \
366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	510	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
367		511
368	/*****************************************************************************/	512	/*****************************************************************************/
369		513
370	static void	514	void noinline
		515	ev_feed_event (EV_P_ void *w, int revents)
		516	{
		517	W w_ = (W)w;
		518	int pri = ABSPRI (w_);
		519
		520	if (expect_false (w_->pending))
		521	pendings [pri][w_->pending - 1].events |= revents;
		522	else
		523	{
		524	w_->pending = ++pendingcnt [pri];
		525	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		526	pendings [pri][w_->pending - 1].w = w_;
		527	pendings [pri][w_->pending - 1].events = revents;
		528	}
		529	}
		530
		531	void inline_speed
		532	queue_events (EV_P_ W *events, int eventcnt, int type)
		533	{
		534	int i;
		535
		536	for (i = 0; i < eventcnt; ++i)
		537	ev_feed_event (EV_A_ events [i], type);
		538	}
		539
		540	/*****************************************************************************/
		541
		542	void inline_size
371	anfds_init (ANFD *base, int count)	543	anfds_init (ANFD *base, int count)
372	{	544	{
373	while (count--)	545	while (count--)
374	{	546	{
375	base->head = 0;	547	base->head = 0;
…		…
378		550
379	++base;	551	++base;
380	}	552	}
381	}	553	}
382		554
383	void	555	void inline_speed
384	ev_feed_event (EV_P_ void *w, int revents)
385	{
386	W w_ = (W)w;
387
388	if (expect_false (w_->pending))
389	{
390	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
391	return;
392	}
393
394	w_->pending = ++pendingcnt [ABSPRI (w_)];
395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
398	}
399
400	static void
401	queue_events (EV_P_ W *events, int eventcnt, int type)
402	{
403	int i;
404
405	for (i = 0; i < eventcnt; ++i)
406	ev_feed_event (EV_A_ events [i], type);
407	}
408
409	inline void
410	fd_event (EV_P_ int fd, int revents)	556	fd_event (EV_P_ int fd, int revents)
411	{	557	{
412	ANFD *anfd = anfds + fd;	558	ANFD *anfd = anfds + fd;
413	struct ev_io *w;	559	ev_io *w;
414		560
415	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	561	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
416	{	562	{
417	int ev = w->events & revents;	563	int ev = w->events & revents;
418		564
419	if (ev)	565	if (ev)
420	ev_feed_event (EV_A_ (W)w, ev);	566	ev_feed_event (EV_A_ (W)w, ev);
…		…
422	}	568	}
423		569
424	void	570	void
425	ev_feed_fd_event (EV_P_ int fd, int revents)	571	ev_feed_fd_event (EV_P_ int fd, int revents)
426	{	572	{
		573	if (fd >= 0 && fd < anfdmax)
427	fd_event (EV_A_ fd, revents);	574	fd_event (EV_A_ fd, revents);
428	}	575	}
429		576
430	/*****************************************************************************/	577	void inline_size
431
432	inline void
433	fd_reify (EV_P)	578	fd_reify (EV_P)
434	{	579	{
435	int i;	580	int i;
436		581
437	for (i = 0; i < fdchangecnt; ++i)	582	for (i = 0; i < fdchangecnt; ++i)
438	{	583	{
439	int fd = fdchanges [i];	584	int fd = fdchanges [i];
440	ANFD *anfd = anfds + fd;	585	ANFD *anfd = anfds + fd;
441	struct ev_io *w;	586	ev_io *w;
442		587
443	int events = 0;	588	unsigned char events = 0;
444		589
445	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	590	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
446	events |= w->events;	591	events |= (unsigned char)w->events;
447		592
448	#if EV_SELECT_IS_WINSOCKET	593	#if EV_SELECT_IS_WINSOCKET
449	if (events)	594	if (events)
450	{	595	{
451	unsigned long argp;	596	unsigned long argp;
452	anfd->handle = _get_osfhandle (fd);	597	anfd->handle = _get_osfhandle (fd);
453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	598	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
454	}	599	}
455	#endif	600	#endif
456		601
		602	{
		603	unsigned char o_events = anfd->events;
		604	unsigned char o_reify = anfd->reify;
		605
457	anfd->reify = 0;	606	anfd->reify = 0;
458
459	method_modify (EV_A_ fd, anfd->events, events);
460	anfd->events = events;	607	anfd->events = events;
		608
		609	if (o_events != events || o_reify & EV_IOFDSET)
		610	backend_modify (EV_A_ fd, o_events, events);
		611	}
461	}	612	}
462		613
463	fdchangecnt = 0;	614	fdchangecnt = 0;
464	}	615	}
465		616
466	static void	617	void inline_size
467	fd_change (EV_P_ int fd)	618	fd_change (EV_P_ int fd, int flags)
468	{	619	{
469	if (expect_false (anfds [fd].reify))	620	unsigned char reify = anfds [fd].reify;
470	return;
471
472	anfds [fd].reify = 1;	621	anfds [fd].reify |= flags;
473		622
		623	if (expect_true (!reify))
		624	{
474	++fdchangecnt;	625	++fdchangecnt;
475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	626	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
476	fdchanges [fdchangecnt - 1] = fd;	627	fdchanges [fdchangecnt - 1] = fd;
		628	}
477	}	629	}
478		630
479	static void	631	void inline_speed
480	fd_kill (EV_P_ int fd)	632	fd_kill (EV_P_ int fd)
481	{	633	{
482	struct ev_io *w;	634	ev_io *w;
483		635
484	while ((w = (struct ev_io *)anfds [fd].head))	636	while ((w = (ev_io *)anfds [fd].head))
485	{	637	{
486	ev_io_stop (EV_A_ w);	638	ev_io_stop (EV_A_ w);
487	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	639	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
488	}	640	}
489	}	641	}
490		642
491	inline int	643	int inline_size
492	fd_valid (int fd)	644	fd_valid (int fd)
493	{	645	{
494	#ifdef _WIN32	646	#ifdef _WIN32
495	return _get_osfhandle (fd) != -1;	647	return _get_osfhandle (fd) != -1;
496	#else	648	#else
497	return fcntl (fd, F_GETFD) != -1;	649	return fcntl (fd, F_GETFD) != -1;
498	#endif	650	#endif
499	}	651	}
500		652
501	/* called on EBADF to verify fds */	653	/* called on EBADF to verify fds */
502	static void	654	static void noinline
503	fd_ebadf (EV_P)	655	fd_ebadf (EV_P)
504	{	656	{
505	int fd;	657	int fd;
506		658
507	for (fd = 0; fd < anfdmax; ++fd)	659	for (fd = 0; fd < anfdmax; ++fd)
…		…
509	if (!fd_valid (fd) == -1 && errno == EBADF)	661	if (!fd_valid (fd) == -1 && errno == EBADF)
510	fd_kill (EV_A_ fd);	662	fd_kill (EV_A_ fd);
511	}	663	}
512		664
513	/* called on ENOMEM in select/poll to kill some fds and retry */	665	/* called on ENOMEM in select/poll to kill some fds and retry */
514	static void	666	static void noinline
515	fd_enomem (EV_P)	667	fd_enomem (EV_P)
516	{	668	{
517	int fd;	669	int fd;
518		670
519	for (fd = anfdmax; fd--; )	671	for (fd = anfdmax; fd--; )
…		…
522	fd_kill (EV_A_ fd);	674	fd_kill (EV_A_ fd);
523	return;	675	return;
524	}	676	}
525	}	677	}
526		678
527	/* usually called after fork if method needs to re-arm all fds from scratch */	679	/* usually called after fork if backend needs to re-arm all fds from scratch */
528	static void	680	static void noinline
529	fd_rearm_all (EV_P)	681	fd_rearm_all (EV_P)
530	{	682	{
531	int fd;	683	int fd;
532		684
533	/* this should be highly optimised to not do anything but set a flag */
534	for (fd = 0; fd < anfdmax; ++fd)	685	for (fd = 0; fd < anfdmax; ++fd)
535	if (anfds [fd].events)	686	if (anfds [fd].events)
536	{	687	{
537	anfds [fd].events = 0;	688	anfds [fd].events = 0;
538	fd_change (EV_A_ fd);	689	fd_change (EV_A_ fd, EV_IOFDSET | 1);
539	}	690	}
540	}	691	}
541		692
542	/*****************************************************************************/	693	/*****************************************************************************/
543		694
544	static void	695	void inline_speed
545	upheap (WT *heap, int k)	696	upheap (WT *heap, int k)
546	{	697	{
547	WT w = heap [k];	698	WT w = heap [k];
548		699
549	while (k && heap [k >> 1]->at > w->at)	700	while (k)
550	{	701	{
		702	int p = (k - 1) >> 1;
		703
		704	if (heap [p]->at <= w->at)
		705	break;
		706
551	heap [k] = heap [k >> 1];	707	heap [k] = heap [p];
552	((W)heap [k])->active = k + 1;	708	((W)heap [k])->active = k + 1;
553	k >>= 1;	709	k = p;
554	}	710	}
555		711
556	heap [k] = w;	712	heap [k] = w;
557	((W)heap [k])->active = k + 1;	713	((W)heap [k])->active = k + 1;
558
559	}	714	}
560		715
561	static void	716	void inline_speed
562	downheap (WT *heap, int N, int k)	717	downheap (WT *heap, int N, int k)
563	{	718	{
564	WT w = heap [k];	719	WT w = heap [k];
565		720
566	while (k < (N >> 1))	721	for (;;)
567	{	722	{
568	int j = k << 1;	723	int c = (k << 1) + 1;
569		724
570	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	725	if (c >= N)
571	++j;
572
573	if (w->at <= heap [j]->at)
574	break;	726	break;
575		727
		728	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		729	? 1 : 0;
		730
		731	if (w->at <= heap [c]->at)
		732	break;
		733
576	heap [k] = heap [j];	734	heap [k] = heap [c];
577	((W)heap [k])->active = k + 1;	735	((W)heap [k])->active = k + 1;
		736
578	k = j;	737	k = c;
579	}	738	}
580		739
581	heap [k] = w;	740	heap [k] = w;
582	((W)heap [k])->active = k + 1;	741	((W)heap [k])->active = k + 1;
583	}	742	}
584		743
585	inline void	744	void inline_size
586	adjustheap (WT *heap, int N, int k)	745	adjustheap (WT *heap, int N, int k)
587	{	746	{
588	upheap (heap, k);	747	upheap (heap, k);
589	downheap (heap, N, k);	748	downheap (heap, N, k);
590	}	749	}
…		…
600	static ANSIG *signals;	759	static ANSIG *signals;
601	static int signalmax;	760	static int signalmax;
602		761
603	static int sigpipe [2];	762	static int sigpipe [2];
604	static sig_atomic_t volatile gotsig;	763	static sig_atomic_t volatile gotsig;
605	static struct ev_io sigev;	764	static ev_io sigev;
606		765
607	static void	766	void inline_size
608	signals_init (ANSIG *base, int count)	767	signals_init (ANSIG *base, int count)
609	{	768	{
610	while (count--)	769	while (count--)
611	{	770	{
612	base->head = 0;	771	base->head = 0;
…		…
632	write (sigpipe [1], &signum, 1);	791	write (sigpipe [1], &signum, 1);
633	errno = old_errno;	792	errno = old_errno;
634	}	793	}
635	}	794	}
636		795
637	void	796	void noinline
638	ev_feed_signal_event (EV_P_ int signum)	797	ev_feed_signal_event (EV_P_ int signum)
639	{	798	{
640	WL w;	799	WL w;
641		800
642	#if EV_MULTIPLICITY	801	#if EV_MULTIPLICITY
…		…
653	for (w = signals [signum].head; w; w = w->next)	812	for (w = signals [signum].head; w; w = w->next)
654	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	813	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
655	}	814	}
656		815
657	static void	816	static void
658	sigcb (EV_P_ struct ev_io *iow, int revents)	817	sigcb (EV_P_ ev_io *iow, int revents)
659	{	818	{
660	int signum;	819	int signum;
661		820
662	read (sigpipe [0], &revents, 1);	821	read (sigpipe [0], &revents, 1);
663	gotsig = 0;	822	gotsig = 0;
…		…
665	for (signum = signalmax; signum--; )	824	for (signum = signalmax; signum--; )
666	if (signals [signum].gotsig)	825	if (signals [signum].gotsig)
667	ev_feed_signal_event (EV_A_ signum + 1);	826	ev_feed_signal_event (EV_A_ signum + 1);
668	}	827	}
669		828
670	static void	829	void inline_speed
671	fd_intern (int fd)	830	fd_intern (int fd)
672	{	831	{
673	#ifdef _WIN32	832	#ifdef _WIN32
674	int arg = 1;	833	int arg = 1;
675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	834	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
677	fcntl (fd, F_SETFD, FD_CLOEXEC);	836	fcntl (fd, F_SETFD, FD_CLOEXEC);
678	fcntl (fd, F_SETFL, O_NONBLOCK);	837	fcntl (fd, F_SETFL, O_NONBLOCK);
679	#endif	838	#endif
680	}	839	}
681		840
682	static void	841	static void noinline
683	siginit (EV_P)	842	siginit (EV_P)
684	{	843	{
685	fd_intern (sigpipe [0]);	844	fd_intern (sigpipe [0]);
686	fd_intern (sigpipe [1]);	845	fd_intern (sigpipe [1]);
687		846
…		…
690	ev_unref (EV_A); /* child watcher should not keep loop alive */	849	ev_unref (EV_A); /* child watcher should not keep loop alive */
691	}	850	}
692		851
693	/*****************************************************************************/	852	/*****************************************************************************/
694		853
695	static struct ev_child *childs [PID_HASHSIZE];	854	static WL childs [EV_PID_HASHSIZE];
696		855
697	#ifndef _WIN32	856	#ifndef _WIN32
698		857
699	static struct ev_signal childev;	858	static ev_signal childev;
		859
		860	void inline_speed
		861	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		862	{
		863	ev_child *w;
		864
		865	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		866	if (w->pid == pid || !w->pid)
		867	{
		868	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		869	w->rpid = pid;
		870	w->rstatus = status;
		871	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		872	}
		873	}
700		874
701	#ifndef WCONTINUED	875	#ifndef WCONTINUED
702	# define WCONTINUED 0	876	# define WCONTINUED 0
703	#endif	877	#endif
704		878
705	static void	879	static void
706	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
707	{
708	struct ev_child *w;
709
710	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
711	if (w->pid == pid || !w->pid)
712	{
713	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
714	w->rpid = pid;
715	w->rstatus = status;
716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
717	}
718	}
719
720	static void
721	childcb (EV_P_ struct ev_signal *sw, int revents)	880	childcb (EV_P_ ev_signal *sw, int revents)
722	{	881	{
723	int pid, status;	882	int pid, status;
724		883
		884	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
725	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	885	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
726	{	886	if (!WCONTINUED
		887	|| errno != EINVAL
		888	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		889	return;
		890
727	/* make sure we are called again until all childs have been reaped */	891	/* make sure we are called again until all childs have been reaped */
		892	/* we need to do it this way so that the callback gets called before we continue */
728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	893	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
729		894
730	child_reap (EV_A_ sw, pid, pid, status);	895	child_reap (EV_A_ sw, pid, pid, status);
		896	if (EV_PID_HASHSIZE > 1)
731	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	897	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
732	}
733	}	898	}
734		899
735	#endif	900	#endif
736		901
737	/*****************************************************************************/	902	/*****************************************************************************/
…		…
763	{	928	{
764	return EV_VERSION_MINOR;	929	return EV_VERSION_MINOR;
765	}	930	}
766		931
767	/* return true if we are running with elevated privileges and should ignore env variables */	932	/* return true if we are running with elevated privileges and should ignore env variables */
768	static int	933	int inline_size
769	enable_secure (void)	934	enable_secure (void)
770	{	935	{
771	#ifdef _WIN32	936	#ifdef _WIN32
772	return 0;	937	return 0;
773	#else	938	#else
…		…
775	|| getgid () != getegid ();	940	|| getgid () != getegid ();
776	#endif	941	#endif
777	}	942	}
778		943
779	unsigned int	944	unsigned int
780	ev_method (EV_P)	945	ev_supported_backends (void)
781	{	946	{
782	return method;	947	unsigned int flags = 0;
783	}
784		948
785	static void	949	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
		950	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		951	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		952	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		953	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		954
		955	return flags;
		956	}
		957
		958	unsigned int
		959	ev_recommended_backends (void)
		960	{
		961	unsigned int flags = ev_supported_backends ();
		962
		963	#ifndef __NetBSD__
		964	/* kqueue is borked on everything but netbsd apparently */
		965	/* it usually doesn't work correctly on anything but sockets and pipes */
		966	flags &= ~EVBACKEND_KQUEUE;
		967	#endif
		968	#ifdef __APPLE__
		969	// flags &= ~EVBACKEND_KQUEUE; for documentation
		970	flags &= ~EVBACKEND_POLL;
		971	#endif
		972
		973	return flags;
		974	}
		975
		976	unsigned int
		977	ev_embeddable_backends (void)
		978	{
		979	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
		980
		981	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		982	/* please fix it and tell me how to detect the fix */
		983	flags &= ~EVBACKEND_EPOLL;
		984
		985	return flags;
		986	}
		987
		988	unsigned int
		989	ev_backend (EV_P)
		990	{
		991	return backend;
		992	}
		993
		994	unsigned int
		995	ev_loop_count (EV_P)
		996	{
		997	return loop_count;
		998	}
		999
		1000	void
		1001	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1002	{
		1003	io_blocktime = interval;
		1004	}
		1005
		1006	void
		1007	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1008	{
		1009	timeout_blocktime = interval;
		1010	}
		1011
		1012	static void noinline
786	loop_init (EV_P_ unsigned int flags)	1013	loop_init (EV_P_ unsigned int flags)
787	{	1014	{
788	if (!method)	1015	if (!backend)
789	{	1016	{
790	#if EV_USE_MONOTONIC	1017	#if EV_USE_MONOTONIC
791	{	1018	{
792	struct timespec ts;	1019	struct timespec ts;
793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1020	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
798	ev_rt_now = ev_time ();	1025	ev_rt_now = ev_time ();
799	mn_now = get_clock ();	1026	mn_now = get_clock ();
800	now_floor = mn_now;	1027	now_floor = mn_now;
801	rtmn_diff = ev_rt_now - mn_now;	1028	rtmn_diff = ev_rt_now - mn_now;
802		1029
803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))	1030	io_blocktime = 0.;
		1031	timeout_blocktime = 0.;
		1032
		1033	/* pid check not overridable via env */
		1034	#ifndef _WIN32
		1035	if (flags & EVFLAG_FORKCHECK)
		1036	curpid = getpid ();
		1037	#endif
		1038
		1039	if (!(flags & EVFLAG_NOENV)
		1040	&& !enable_secure ()
		1041	&& getenv ("LIBEV_FLAGS"))
804	flags = atoi (getenv ("LIBEV_FLAGS"));	1042	flags = atoi (getenv ("LIBEV_FLAGS"));
805		1043
806	if (!(flags & 0x0000ffff))	1044	if (!(flags & 0x0000ffffUL))
807	flags |= 0x0000ffff;	1045	flags |= ev_recommended_backends ();
808		1046
809	method = 0;	1047	backend = 0;
		1048	backend_fd = -1;
		1049	#if EV_USE_INOTIFY
		1050	fs_fd = -2;
		1051	#endif
		1052
810	#if EV_USE_PORT	1053	#if EV_USE_PORT
811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);	1054	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
812	#endif	1055	#endif
813	#if EV_USE_KQUEUE	1056	#if EV_USE_KQUEUE
814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);	1057	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
815	#endif	1058	#endif
816	#if EV_USE_EPOLL	1059	#if EV_USE_EPOLL
817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);	1060	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
818	#endif	1061	#endif
819	#if EV_USE_POLL	1062	#if EV_USE_POLL
820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);	1063	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
821	#endif	1064	#endif
822	#if EV_USE_SELECT	1065	#if EV_USE_SELECT
823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);	1066	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
824	#endif	1067	#endif
825		1068
826	ev_init (&sigev, sigcb);	1069	ev_init (&sigev, sigcb);
827	ev_set_priority (&sigev, EV_MAXPRI);	1070	ev_set_priority (&sigev, EV_MAXPRI);
828	}	1071	}
829	}	1072	}
830		1073
831	static void	1074	static void noinline
832	loop_destroy (EV_P)	1075	loop_destroy (EV_P)
833	{	1076	{
834	int i;	1077	int i;
835		1078
		1079	#if EV_USE_INOTIFY
		1080	if (fs_fd >= 0)
		1081	close (fs_fd);
		1082	#endif
		1083
		1084	if (backend_fd >= 0)
		1085	close (backend_fd);
		1086
836	#if EV_USE_PORT	1087	#if EV_USE_PORT
837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);	1088	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
838	#endif	1089	#endif
839	#if EV_USE_KQUEUE	1090	#if EV_USE_KQUEUE
840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	1091	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
841	#endif	1092	#endif
842	#if EV_USE_EPOLL	1093	#if EV_USE_EPOLL
843	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	1094	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
844	#endif	1095	#endif
845	#if EV_USE_POLL	1096	#if EV_USE_POLL
846	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	1097	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
847	#endif	1098	#endif
848	#if EV_USE_SELECT	1099	#if EV_USE_SELECT
849	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	1100	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
850	#endif	1101	#endif
851		1102
852	for (i = NUMPRI; i--; )	1103	for (i = NUMPRI; i--; )
		1104	{
853	array_free (pending, [i]);	1105	array_free (pending, [i]);
		1106	#if EV_IDLE_ENABLE
		1107	array_free (idle, [i]);
		1108	#endif
		1109	}
		1110
		1111	ev_free (anfds); anfdmax = 0;
854		1112
855	/* have to use the microsoft-never-gets-it-right macro */	1113	/* have to use the microsoft-never-gets-it-right macro */
856	array_free (fdchange, EMPTY0);	1114	array_free (fdchange, EMPTY);
857	array_free (timer, EMPTY0);	1115	array_free (timer, EMPTY);
858	#if EV_PERIODICS	1116	#if EV_PERIODIC_ENABLE
859	array_free (periodic, EMPTY0);	1117	array_free (periodic, EMPTY);
860	#endif	1118	#endif
		1119	#if EV_FORK_ENABLE
861	array_free (idle, EMPTY0);	1120	array_free (fork, EMPTY);
		1121	#endif
862	array_free (prepare, EMPTY0);	1122	array_free (prepare, EMPTY);
863	array_free (check, EMPTY0);	1123	array_free (check, EMPTY);
864		1124
865	method = 0;	1125	backend = 0;
866	}	1126	}
867		1127
868	static void	1128	void inline_size infy_fork (EV_P);
		1129
		1130	void inline_size
869	loop_fork (EV_P)	1131	loop_fork (EV_P)
870	{	1132	{
871	#if EV_USE_PORT	1133	#if EV_USE_PORT
872	if (method == EVMETHOD_PORT ) port_fork (EV_A);	1134	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
873	#endif	1135	#endif
874	#if EV_USE_KQUEUE	1136	#if EV_USE_KQUEUE
875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	1137	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
876	#endif	1138	#endif
877	#if EV_USE_EPOLL	1139	#if EV_USE_EPOLL
878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	1140	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1141	#endif
		1142	#if EV_USE_INOTIFY
		1143	infy_fork (EV_A);
879	#endif	1144	#endif
880		1145
881	if (ev_is_active (&sigev))	1146	if (ev_is_active (&sigev))
882	{	1147	{
883	/* default loop */	1148	/* default loop */
…		…
904		1169
905	memset (loop, 0, sizeof (struct ev_loop));	1170	memset (loop, 0, sizeof (struct ev_loop));
906		1171
907	loop_init (EV_A_ flags);	1172	loop_init (EV_A_ flags);
908		1173
909	if (ev_method (EV_A))	1174	if (ev_backend (EV_A))
910	return loop;	1175	return loop;
911		1176
912	return 0;	1177	return 0;
913	}	1178	}
914		1179
…		…
947	ev_default_loop_ptr = 1;	1212	ev_default_loop_ptr = 1;
948	#endif	1213	#endif
949		1214
950	loop_init (EV_A_ flags);	1215	loop_init (EV_A_ flags);
951		1216
952	if (ev_method (EV_A))	1217	if (ev_backend (EV_A))
953	{	1218	{
954	siginit (EV_A);	1219	siginit (EV_A);
955		1220
956	#ifndef _WIN32	1221	#ifndef _WIN32
957	ev_signal_init (&childev, childcb, SIGCHLD);	1222	ev_signal_init (&childev, childcb, SIGCHLD);
…		…
993	{	1258	{
994	#if EV_MULTIPLICITY	1259	#if EV_MULTIPLICITY
995	struct ev_loop *loop = ev_default_loop_ptr;	1260	struct ev_loop *loop = ev_default_loop_ptr;
996	#endif	1261	#endif
997		1262
998	if (method)	1263	if (backend)
999	postfork = 1;	1264	postfork = 1;
1000	}	1265	}
1001		1266
1002	/*****************************************************************************/	1267	/*****************************************************************************/
1003		1268
1004	static int	1269	void
1005	any_pending (EV_P)	1270	ev_invoke (EV_P_ void *w, int revents)
1006	{	1271	{
1007	int pri;	1272	EV_CB_INVOKE ((W)w, revents);
1008
1009	for (pri = NUMPRI; pri--; )
1010	if (pendingcnt [pri])
1011	return 1;
1012
1013	return 0;
1014	}	1273	}
1015		1274
1016	inline void	1275	void inline_speed
1017	call_pending (EV_P)	1276	call_pending (EV_P)
1018	{	1277	{
1019	int pri;	1278	int pri;
1020		1279
1021	for (pri = NUMPRI; pri--; )	1280	for (pri = NUMPRI; pri--; )
…		…
1023	{	1282	{
1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1283	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1025		1284
1026	if (expect_true (p->w))	1285	if (expect_true (p->w))
1027	{	1286	{
		1287	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1288
1028	p->w->pending = 0;	1289	p->w->pending = 0;
1029	EV_CB_INVOKE (p->w, p->events);	1290	EV_CB_INVOKE (p->w, p->events);
1030	}	1291	}
1031	}	1292	}
1032	}	1293	}
1033		1294
1034	inline void	1295	void inline_size
1035	timers_reify (EV_P)	1296	timers_reify (EV_P)
1036	{	1297	{
1037	while (timercnt && ((WT)timers [0])->at <= mn_now)	1298	while (timercnt && ((WT)timers [0])->at <= mn_now)
1038	{	1299	{
1039	struct ev_timer *w = timers [0];	1300	ev_timer *w = (ev_timer *)timers [0];
1040		1301
1041	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1302	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1042		1303
1043	/* first reschedule or stop timer */	1304	/* first reschedule or stop timer */
1044	if (w->repeat)	1305	if (w->repeat)
1045	{	1306	{
1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1307	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1047		1308
1048	((WT)w)->at += w->repeat;	1309	((WT)w)->at += w->repeat;
1049	if (((WT)w)->at < mn_now)	1310	if (((WT)w)->at < mn_now)
1050	((WT)w)->at = mn_now;	1311	((WT)w)->at = mn_now;
1051		1312
1052	downheap ((WT *)timers, timercnt, 0);	1313	downheap (timers, timercnt, 0);
1053	}	1314	}
1054	else	1315	else
1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1316	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1056		1317
1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1318	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1058	}	1319	}
1059	}	1320	}
1060		1321
1061	#if EV_PERIODICS	1322	#if EV_PERIODIC_ENABLE
1062	inline void	1323	void inline_size
1063	periodics_reify (EV_P)	1324	periodics_reify (EV_P)
1064	{	1325	{
1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1326	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1066	{	1327	{
1067	struct ev_periodic *w = periodics [0];	1328	ev_periodic *w = (ev_periodic *)periodics [0];
1068		1329
1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1330	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1070		1331
1071	/* first reschedule or stop timer */	1332	/* first reschedule or stop timer */
1072	if (w->reschedule_cb)	1333	if (w->reschedule_cb)
1073	{	1334	{
1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1335	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1336	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1076	downheap ((WT *)periodics, periodiccnt, 0);	1337	downheap (periodics, periodiccnt, 0);
1077	}	1338	}
1078	else if (w->interval)	1339	else if (w->interval)
1079	{	1340	{
1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1341	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1342	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1343	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1082	downheap ((WT *)periodics, periodiccnt, 0);	1344	downheap (periodics, periodiccnt, 0);
1083	}	1345	}
1084	else	1346	else
1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1347	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1086		1348
1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1349	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1088	}	1350	}
1089	}	1351	}
1090		1352
1091	static void	1353	static void noinline
1092	periodics_reschedule (EV_P)	1354	periodics_reschedule (EV_P)
1093	{	1355	{
1094	int i;	1356	int i;
1095		1357
1096	/* adjust periodics after time jump */	1358	/* adjust periodics after time jump */
1097	for (i = 0; i < periodiccnt; ++i)	1359	for (i = 0; i < periodiccnt; ++i)
1098	{	1360	{
1099	struct ev_periodic *w = periodics [i];	1361	ev_periodic *w = (ev_periodic *)periodics [i];
1100		1362
1101	if (w->reschedule_cb)	1363	if (w->reschedule_cb)
1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1364	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1103	else if (w->interval)	1365	else if (w->interval)
1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1366	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1105	}	1367	}
1106		1368
1107	/* now rebuild the heap */	1369	/* now rebuild the heap */
1108	for (i = periodiccnt >> 1; i--; )	1370	for (i = periodiccnt >> 1; i--; )
1109	downheap ((WT *)periodics, periodiccnt, i);	1371	downheap (periodics, periodiccnt, i);
1110	}	1372	}
1111	#endif	1373	#endif
1112		1374
1113	inline int	1375	#if EV_IDLE_ENABLE
1114	time_update_monotonic (EV_P)	1376	void inline_size
		1377	idle_reify (EV_P)
1115	{	1378	{
		1379	if (expect_false (idleall))
		1380	{
		1381	int pri;
		1382
		1383	for (pri = NUMPRI; pri--; )
		1384	{
		1385	if (pendingcnt [pri])
		1386	break;
		1387
		1388	if (idlecnt [pri])
		1389	{
		1390	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1391	break;
		1392	}
		1393	}
		1394	}
		1395	}
		1396	#endif
		1397
		1398	void inline_speed
		1399	time_update (EV_P_ ev_tstamp max_block)
		1400	{
		1401	int i;
		1402
		1403	#if EV_USE_MONOTONIC
		1404	if (expect_true (have_monotonic))
		1405	{
		1406	ev_tstamp odiff = rtmn_diff;
		1407
1116	mn_now = get_clock ();	1408	mn_now = get_clock ();
1117		1409
		1410	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1411	/* interpolate in the meantime */
1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1412	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1119	{	1413	{
1120	ev_rt_now = rtmn_diff + mn_now;	1414	ev_rt_now = rtmn_diff + mn_now;
1121	return 0;	1415	return;
1122	}	1416	}
1123	else	1417
1124	{
1125	now_floor = mn_now;	1418	now_floor = mn_now;
1126	ev_rt_now = ev_time ();	1419	ev_rt_now = ev_time ();
1127	return 1;
1128	}
1129	}
1130		1420
1131	inline void	1421	/* loop a few times, before making important decisions.
1132	time_update (EV_P)	1422	* on the choice of "4": one iteration isn't enough,
1133	{	1423	* in case we get preempted during the calls to
1134	int i;	1424	* ev_time and get_clock. a second call is almost guaranteed
1135		1425	* to succeed in that case, though. and looping a few more times
1136	#if EV_USE_MONOTONIC	1426	* doesn't hurt either as we only do this on time-jumps or
1137	if (expect_true (have_monotonic))	1427	* in the unlikely event of having been preempted here.
1138	{	1428	*/
1139	if (time_update_monotonic (EV_A))	1429	for (i = 4; --i; )
1140	{	1430	{
1141	ev_tstamp odiff = rtmn_diff;
1142
1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1144	{
1145	rtmn_diff = ev_rt_now - mn_now;	1431	rtmn_diff = ev_rt_now - mn_now;
1146		1432
1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1433	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1148	return; /* all is well */	1434	return; /* all is well */
1149		1435
1150	ev_rt_now = ev_time ();	1436	ev_rt_now = ev_time ();
1151	mn_now = get_clock ();	1437	mn_now = get_clock ();
1152	now_floor = mn_now;	1438	now_floor = mn_now;
1153	}	1439	}
1154		1440
1155	# if EV_PERIODICS	1441	# if EV_PERIODIC_ENABLE
		1442	periodics_reschedule (EV_A);
		1443	# endif
		1444	/* no timer adjustment, as the monotonic clock doesn't jump */
		1445	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
		1446	}
		1447	else
		1448	#endif
		1449	{
		1450	ev_rt_now = ev_time ();
		1451
		1452	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
		1453	{
		1454	#if EV_PERIODIC_ENABLE
1156	periodics_reschedule (EV_A);	1455	periodics_reschedule (EV_A);
1157	# endif	1456	#endif
1158	/* no timer adjustment, as the monotonic clock doesn't jump */
1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1160	}
1161	}
1162	else
1163	#endif
1164	{
1165	ev_rt_now = ev_time ();
1166
1167	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1168	{
1169	#if EV_PERIODICS
1170	periodics_reschedule (EV_A);
1171	#endif
1172
1173	/* adjust timers. this is easy, as the offset is the same for all */	1457	/* adjust timers. this is easy, as the offset is the same for all of them */
1174	for (i = 0; i < timercnt; ++i)	1458	for (i = 0; i < timercnt; ++i)
1175	((WT)timers [i])->at += ev_rt_now - mn_now;	1459	((WT)timers [i])->at += ev_rt_now - mn_now;
1176	}	1460	}
1177		1461
1178	mn_now = ev_rt_now;	1462	mn_now = ev_rt_now;
…		…
1194	static int loop_done;	1478	static int loop_done;
1195		1479
1196	void	1480	void
1197	ev_loop (EV_P_ int flags)	1481	ev_loop (EV_P_ int flags)
1198	{	1482	{
1199	double block;
1200	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1483	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1484	? EVUNLOOP_ONE
		1485	: EVUNLOOP_CANCEL;
1201		1486
1202	while (activecnt)	1487	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1488
		1489	do
1203	{	1490	{
		1491	#ifndef _WIN32
		1492	if (expect_false (curpid)) /* penalise the forking check even more */
		1493	if (expect_false (getpid () != curpid))
		1494	{
		1495	curpid = getpid ();
		1496	postfork = 1;
		1497	}
		1498	#endif
		1499
		1500	#if EV_FORK_ENABLE
		1501	/* we might have forked, so queue fork handlers */
		1502	if (expect_false (postfork))
		1503	if (forkcnt)
		1504	{
		1505	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1506	call_pending (EV_A);
		1507	}
		1508	#endif
		1509
1204	/* queue check watchers (and execute them) */	1510	/* queue prepare watchers (and execute them) */
1205	if (expect_false (preparecnt))	1511	if (expect_false (preparecnt))
1206	{	1512	{
1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1513	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1208	call_pending (EV_A);	1514	call_pending (EV_A);
1209	}	1515	}
1210		1516
		1517	if (expect_false (!activecnt))
		1518	break;
		1519
1211	/* we might have forked, so reify kernel state if necessary */	1520	/* we might have forked, so reify kernel state if necessary */
1212	if (expect_false (postfork))	1521	if (expect_false (postfork))
1213	loop_fork (EV_A);	1522	loop_fork (EV_A);
1214		1523
1215	/* update fd-related kernel structures */	1524	/* update fd-related kernel structures */
1216	fd_reify (EV_A);	1525	fd_reify (EV_A);
1217		1526
1218	/* calculate blocking time */	1527	/* calculate blocking time */
		1528	{
		1529	ev_tstamp waittime = 0.;
		1530	ev_tstamp sleeptime = 0.;
1219		1531
1220	/* we only need this for !monotonic clock or timers, but as we basically	1532	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1221	always have timers, we just calculate it always */
1222	#if EV_USE_MONOTONIC
1223	if (expect_true (have_monotonic))
1224	time_update_monotonic (EV_A);
1225	else
1226	#endif
1227	{	1533	{
1228	ev_rt_now = ev_time ();	1534	/* update time to cancel out callback processing overhead */
1229	mn_now = ev_rt_now;	1535	time_update (EV_A_ 1e100);
1230	}
1231		1536
1232	if (flags & EVLOOP_NONBLOCK || idlecnt)
1233	block = 0.;
1234	else
1235	{
1236	block = MAX_BLOCKTIME;	1537	waittime = MAX_BLOCKTIME;
1237		1538
1238	if (timercnt)	1539	if (timercnt)
1239	{	1540	{
1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1541	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1241	if (block > to) block = to;	1542	if (waittime > to) waittime = to;
1242	}	1543	}
1243		1544
1244	#if EV_PERIODICS	1545	#if EV_PERIODIC_ENABLE
1245	if (periodiccnt)	1546	if (periodiccnt)
1246	{	1547	{
1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1548	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1248	if (block > to) block = to;	1549	if (waittime > to) waittime = to;
1249	}	1550	}
1250	#endif	1551	#endif
1251		1552
1252	if (expect_false (block < 0.)) block = 0.;	1553	if (expect_false (waittime < timeout_blocktime))
		1554	waittime = timeout_blocktime;
		1555
		1556	sleeptime = waittime - backend_fudge;
		1557
		1558	if (expect_true (sleeptime > io_blocktime))
		1559	sleeptime = io_blocktime;
		1560
		1561	if (sleeptime)
		1562	{
		1563	ev_sleep (sleeptime);
		1564	waittime -= sleeptime;
		1565	}
1253	}	1566	}
1254		1567
1255	method_poll (EV_A_ block);	1568	++loop_count;
		1569	backend_poll (EV_A_ waittime);
1256		1570
1257	/* update ev_rt_now, do magic */	1571	/* update ev_rt_now, do magic */
1258	time_update (EV_A);	1572	time_update (EV_A_ waittime + sleeptime);
		1573	}
1259		1574
1260	/* queue pending timers and reschedule them */	1575	/* queue pending timers and reschedule them */
1261	timers_reify (EV_A); /* relative timers called last */	1576	timers_reify (EV_A); /* relative timers called last */
1262	#if EV_PERIODICS	1577	#if EV_PERIODIC_ENABLE
1263	periodics_reify (EV_A); /* absolute timers called first */	1578	periodics_reify (EV_A); /* absolute timers called first */
1264	#endif	1579	#endif
1265		1580
		1581	#if EV_IDLE_ENABLE
1266	/* queue idle watchers unless io or timers are pending */	1582	/* queue idle watchers unless other events are pending */
1267	if (idlecnt && !any_pending (EV_A))	1583	idle_reify (EV_A);
1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1584	#endif
1269		1585
1270	/* queue check watchers, to be executed first */	1586	/* queue check watchers, to be executed first */
1271	if (expect_false (checkcnt))	1587	if (expect_false (checkcnt))
1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1588	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1273		1589
1274	call_pending (EV_A);	1590	call_pending (EV_A);
1275		1591
1276	if (expect_false (loop_done))
1277	break;
1278	}	1592	}
		1593	while (expect_true (activecnt && !loop_done));
1279		1594
1280	if (loop_done != 2)	1595	if (loop_done == EVUNLOOP_ONE)
1281	loop_done = 0;	1596	loop_done = EVUNLOOP_CANCEL;
1282	}	1597	}
1283		1598
1284	void	1599	void
1285	ev_unloop (EV_P_ int how)	1600	ev_unloop (EV_P_ int how)
1286	{	1601	{
1287	loop_done = how;	1602	loop_done = how;
1288	}	1603	}
1289		1604
1290	/*****************************************************************************/	1605	/*****************************************************************************/
1291		1606
1292	inline void	1607	void inline_size
1293	wlist_add (WL *head, WL elem)	1608	wlist_add (WL *head, WL elem)
1294	{	1609	{
1295	elem->next = *head;	1610	elem->next = *head;
1296	*head = elem;	1611	*head = elem;
1297	}	1612	}
1298		1613
1299	inline void	1614	void inline_size
1300	wlist_del (WL *head, WL elem)	1615	wlist_del (WL *head, WL elem)
1301	{	1616	{
1302	while (*head)	1617	while (*head)
1303	{	1618	{
1304	if (*head == elem)	1619	if (*head == elem)
…		…
1309		1624
1310	head = &(*head)->next;	1625	head = &(*head)->next;
1311	}	1626	}
1312	}	1627	}
1313		1628
1314	inline void	1629	void inline_speed
1315	ev_clear_pending (EV_P_ W w)	1630	clear_pending (EV_P_ W w)
1316	{	1631	{
1317	if (w->pending)	1632	if (w->pending)
1318	{	1633	{
1319	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1634	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1320	w->pending = 0;	1635	w->pending = 0;
1321	}	1636	}
1322	}	1637	}
1323		1638
1324	inline void	1639	int
		1640	ev_clear_pending (EV_P_ void *w)
		1641	{
		1642	W w_ = (W)w;
		1643	int pending = w_->pending;
		1644
		1645	if (expect_true (pending))
		1646	{
		1647	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1648	w_->pending = 0;
		1649	p->w = 0;
		1650	return p->events;
		1651	}
		1652	else
		1653	return 0;
		1654	}
		1655
		1656	void inline_size
		1657	pri_adjust (EV_P_ W w)
		1658	{
		1659	int pri = w->priority;
		1660	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1661	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1662	w->priority = pri;
		1663	}
		1664
		1665	void inline_speed
1325	ev_start (EV_P_ W w, int active)	1666	ev_start (EV_P_ W w, int active)
1326	{	1667	{
1327	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1668	pri_adjust (EV_A_ w);
1328	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1329
1330	w->active = active;	1669	w->active = active;
1331	ev_ref (EV_A);	1670	ev_ref (EV_A);
1332	}	1671	}
1333		1672
1334	inline void	1673	void inline_size
1335	ev_stop (EV_P_ W w)	1674	ev_stop (EV_P_ W w)
1336	{	1675	{
1337	ev_unref (EV_A);	1676	ev_unref (EV_A);
1338	w->active = 0;	1677	w->active = 0;
1339	}	1678	}
1340		1679
1341	/*****************************************************************************/	1680	/*****************************************************************************/
1342		1681
1343	void	1682	void noinline
1344	ev_io_start (EV_P_ struct ev_io *w)	1683	ev_io_start (EV_P_ ev_io *w)
1345	{	1684	{
1346	int fd = w->fd;	1685	int fd = w->fd;
1347		1686
1348	if (expect_false (ev_is_active (w)))	1687	if (expect_false (ev_is_active (w)))
1349	return;	1688	return;
1350		1689
1351	assert (("ev_io_start called with negative fd", fd >= 0));	1690	assert (("ev_io_start called with negative fd", fd >= 0));
1352		1691
1353	ev_start (EV_A_ (W)w, 1);	1692	ev_start (EV_A_ (W)w, 1);
1354	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1693	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1355	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1694	wlist_add (&anfds[fd].head, (WL)w);
1356		1695
1357	fd_change (EV_A_ fd);	1696	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1697	w->events &= ~EV_IOFDSET;
1358	}	1698	}
1359		1699
1360	void	1700	void noinline
1361	ev_io_stop (EV_P_ struct ev_io *w)	1701	ev_io_stop (EV_P_ ev_io *w)
1362	{	1702	{
1363	ev_clear_pending (EV_A_ (W)w);	1703	clear_pending (EV_A_ (W)w);
1364	if (expect_false (!ev_is_active (w)))	1704	if (expect_false (!ev_is_active (w)))
1365	return;	1705	return;
1366		1706
1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1707	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1368		1708
1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1709	wlist_del (&anfds[w->fd].head, (WL)w);
1370	ev_stop (EV_A_ (W)w);	1710	ev_stop (EV_A_ (W)w);
1371		1711
1372	fd_change (EV_A_ w->fd);	1712	fd_change (EV_A_ w->fd, 1);
1373	}	1713	}
1374		1714
1375	void	1715	void noinline
1376	ev_timer_start (EV_P_ struct ev_timer *w)	1716	ev_timer_start (EV_P_ ev_timer *w)
1377	{	1717	{
1378	if (expect_false (ev_is_active (w)))	1718	if (expect_false (ev_is_active (w)))
1379	return;	1719	return;
1380		1720
1381	((WT)w)->at += mn_now;	1721	((WT)w)->at += mn_now;
1382		1722
1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1723	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1384		1724
1385	ev_start (EV_A_ (W)w, ++timercnt);	1725	ev_start (EV_A_ (W)w, ++timercnt);
1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);	1726	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1387	timers [timercnt - 1] = w;	1727	timers [timercnt - 1] = (WT)w;
1388	upheap ((WT *)timers, timercnt - 1);	1728	upheap (timers, timercnt - 1);
1389		1729
1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1730	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1391	}	1731	}
1392		1732
1393	void	1733	void noinline
1394	ev_timer_stop (EV_P_ struct ev_timer *w)	1734	ev_timer_stop (EV_P_ ev_timer *w)
1395	{	1735	{
1396	ev_clear_pending (EV_A_ (W)w);	1736	clear_pending (EV_A_ (W)w);
1397	if (expect_false (!ev_is_active (w)))	1737	if (expect_false (!ev_is_active (w)))
1398	return;	1738	return;
1399		1739
1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1740	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1401		1741
		1742	{
		1743	int active = ((W)w)->active;
		1744
1402	if (expect_true (((W)w)->active < timercnt--))	1745	if (expect_true (--active < --timercnt))
1403	{	1746	{
1404	timers [((W)w)->active - 1] = timers [timercnt];	1747	timers [active] = timers [timercnt];
1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1748	adjustheap (timers, timercnt, active);
1406	}	1749	}
		1750	}
1407		1751
1408	((WT)w)->at -= mn_now;	1752	((WT)w)->at -= mn_now;
1409		1753
1410	ev_stop (EV_A_ (W)w);	1754	ev_stop (EV_A_ (W)w);
1411	}	1755	}
1412		1756
1413	void	1757	void noinline
1414	ev_timer_again (EV_P_ struct ev_timer *w)	1758	ev_timer_again (EV_P_ ev_timer *w)
1415	{	1759	{
1416	if (ev_is_active (w))	1760	if (ev_is_active (w))
1417	{	1761	{
1418	if (w->repeat)	1762	if (w->repeat)
1419	{	1763	{
1420	((WT)w)->at = mn_now + w->repeat;	1764	((WT)w)->at = mn_now + w->repeat;
1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1765	adjustheap (timers, timercnt, ((W)w)->active - 1);
1422	}	1766	}
1423	else	1767	else
1424	ev_timer_stop (EV_A_ w);	1768	ev_timer_stop (EV_A_ w);
1425	}	1769	}
1426	else if (w->repeat)	1770	else if (w->repeat)
…		…
1428	w->at = w->repeat;	1772	w->at = w->repeat;
1429	ev_timer_start (EV_A_ w);	1773	ev_timer_start (EV_A_ w);
1430	}	1774	}
1431	}	1775	}
1432		1776
1433	#if EV_PERIODICS	1777	#if EV_PERIODIC_ENABLE
1434	void	1778	void noinline
1435	ev_periodic_start (EV_P_ struct ev_periodic *w)	1779	ev_periodic_start (EV_P_ ev_periodic *w)
1436	{	1780	{
1437	if (expect_false (ev_is_active (w)))	1781	if (expect_false (ev_is_active (w)))
1438	return;	1782	return;
1439		1783
1440	if (w->reschedule_cb)	1784	if (w->reschedule_cb)
1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1785	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1442	else if (w->interval)	1786	else if (w->interval)
1443	{	1787	{
1444	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1788	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1445	/* this formula differs from the one in periodic_reify because we do not always round up */	1789	/* this formula differs from the one in periodic_reify because we do not always round up */
1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1790	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1447	}	1791	}
		1792	else
		1793	((WT)w)->at = w->offset;
1448		1794
1449	ev_start (EV_A_ (W)w, ++periodiccnt);	1795	ev_start (EV_A_ (W)w, ++periodiccnt);
1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1796	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1451	periodics [periodiccnt - 1] = w;	1797	periodics [periodiccnt - 1] = (WT)w;
1452	upheap ((WT *)periodics, periodiccnt - 1);	1798	upheap (periodics, periodiccnt - 1);
1453		1799
1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1800	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1455	}	1801	}
1456		1802
1457	void	1803	void noinline
1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1804	ev_periodic_stop (EV_P_ ev_periodic *w)
1459	{	1805	{
1460	ev_clear_pending (EV_A_ (W)w);	1806	clear_pending (EV_A_ (W)w);
1461	if (expect_false (!ev_is_active (w)))	1807	if (expect_false (!ev_is_active (w)))
1462	return;	1808	return;
1463		1809
1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1810	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1465		1811
		1812	{
		1813	int active = ((W)w)->active;
		1814
1466	if (expect_true (((W)w)->active < periodiccnt--))	1815	if (expect_true (--active < --periodiccnt))
1467	{	1816	{
1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1817	periodics [active] = periodics [periodiccnt];
1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1818	adjustheap (periodics, periodiccnt, active);
1470	}	1819	}
		1820	}
1471		1821
1472	ev_stop (EV_A_ (W)w);	1822	ev_stop (EV_A_ (W)w);
1473	}	1823	}
1474		1824
1475	void	1825	void noinline
1476	ev_periodic_again (EV_P_ struct ev_periodic *w)	1826	ev_periodic_again (EV_P_ ev_periodic *w)
1477	{	1827	{
1478	/* TODO: use adjustheap and recalculation */	1828	/* TODO: use adjustheap and recalculation */
1479	ev_periodic_stop (EV_A_ w);	1829	ev_periodic_stop (EV_A_ w);
1480	ev_periodic_start (EV_A_ w);	1830	ev_periodic_start (EV_A_ w);
1481	}	1831	}
1482	#endif	1832	#endif
1483		1833
1484	void
1485	ev_idle_start (EV_P_ struct ev_idle *w)
1486	{
1487	if (expect_false (ev_is_active (w)))
1488	return;
1489
1490	ev_start (EV_A_ (W)w, ++idlecnt);
1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1492	idles [idlecnt - 1] = w;
1493	}
1494
1495	void
1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1497	{
1498	ev_clear_pending (EV_A_ (W)w);
1499	if (expect_false (!ev_is_active (w)))
1500	return;
1501
1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1503	ev_stop (EV_A_ (W)w);
1504	}
1505
1506	void
1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1508	{
1509	if (expect_false (ev_is_active (w)))
1510	return;
1511
1512	ev_start (EV_A_ (W)w, ++preparecnt);
1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1514	prepares [preparecnt - 1] = w;
1515	}
1516
1517	void
1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1519	{
1520	ev_clear_pending (EV_A_ (W)w);
1521	if (expect_false (!ev_is_active (w)))
1522	return;
1523
1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1525	ev_stop (EV_A_ (W)w);
1526	}
1527
1528	void
1529	ev_check_start (EV_P_ struct ev_check *w)
1530	{
1531	if (expect_false (ev_is_active (w)))
1532	return;
1533
1534	ev_start (EV_A_ (W)w, ++checkcnt);
1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1536	checks [checkcnt - 1] = w;
1537	}
1538
1539	void
1540	ev_check_stop (EV_P_ struct ev_check *w)
1541	{
1542	ev_clear_pending (EV_A_ (W)w);
1543	if (expect_false (!ev_is_active (w)))
1544	return;
1545
1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1547	ev_stop (EV_A_ (W)w);
1548	}
1549
1550	#ifndef SA_RESTART	1834	#ifndef SA_RESTART
1551	# define SA_RESTART 0	1835	# define SA_RESTART 0
1552	#endif	1836	#endif
1553		1837
1554	void	1838	void noinline
1555	ev_signal_start (EV_P_ struct ev_signal *w)	1839	ev_signal_start (EV_P_ ev_signal *w)
1556	{	1840	{
1557	#if EV_MULTIPLICITY	1841	#if EV_MULTIPLICITY
1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1842	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1559	#endif	1843	#endif
1560	if (expect_false (ev_is_active (w)))	1844	if (expect_false (ev_is_active (w)))
1561	return;	1845	return;
1562		1846
1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1847	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1564		1848
		1849	{
		1850	#ifndef _WIN32
		1851	sigset_t full, prev;
		1852	sigfillset (&full);
		1853	sigprocmask (SIG_SETMASK, &full, &prev);
		1854	#endif
		1855
		1856	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1857
		1858	#ifndef _WIN32
		1859	sigprocmask (SIG_SETMASK, &prev, 0);
		1860	#endif
		1861	}
		1862
1565	ev_start (EV_A_ (W)w, 1);	1863	ev_start (EV_A_ (W)w, 1);
1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1864	wlist_add (&signals [w->signum - 1].head, (WL)w);
1568		1865
1569	if (!((WL)w)->next)	1866	if (!((WL)w)->next)
1570	{	1867	{
1571	#if _WIN32	1868	#if _WIN32
1572	signal (w->signum, sighandler);	1869	signal (w->signum, sighandler);
…		…
1578	sigaction (w->signum, &sa, 0);	1875	sigaction (w->signum, &sa, 0);
1579	#endif	1876	#endif
1580	}	1877	}
1581	}	1878	}
1582		1879
1583	void	1880	void noinline
1584	ev_signal_stop (EV_P_ struct ev_signal *w)	1881	ev_signal_stop (EV_P_ ev_signal *w)
1585	{	1882	{
1586	ev_clear_pending (EV_A_ (W)w);	1883	clear_pending (EV_A_ (W)w);
1587	if (expect_false (!ev_is_active (w)))	1884	if (expect_false (!ev_is_active (w)))
1588	return;	1885	return;
1589		1886
1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1887	wlist_del (&signals [w->signum - 1].head, (WL)w);
1591	ev_stop (EV_A_ (W)w);	1888	ev_stop (EV_A_ (W)w);
1592		1889
1593	if (!signals [w->signum - 1].head)	1890	if (!signals [w->signum - 1].head)
1594	signal (w->signum, SIG_DFL);	1891	signal (w->signum, SIG_DFL);
1595	}	1892	}
1596		1893
1597	void	1894	void
1598	ev_child_start (EV_P_ struct ev_child *w)	1895	ev_child_start (EV_P_ ev_child *w)
1599	{	1896	{
1600	#if EV_MULTIPLICITY	1897	#if EV_MULTIPLICITY
1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1898	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1602	#endif	1899	#endif
1603	if (expect_false (ev_is_active (w)))	1900	if (expect_false (ev_is_active (w)))
1604	return;	1901	return;
1605		1902
1606	ev_start (EV_A_ (W)w, 1);	1903	ev_start (EV_A_ (W)w, 1);
1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1904	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1608	}	1905	}
1609		1906
1610	void	1907	void
1611	ev_child_stop (EV_P_ struct ev_child *w)	1908	ev_child_stop (EV_P_ ev_child *w)
1612	{	1909	{
1613	ev_clear_pending (EV_A_ (W)w);	1910	clear_pending (EV_A_ (W)w);
1614	if (expect_false (!ev_is_active (w)))	1911	if (expect_false (!ev_is_active (w)))
1615	return;	1912	return;
1616		1913
1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1914	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1618	ev_stop (EV_A_ (W)w);	1915	ev_stop (EV_A_ (W)w);
1619	}	1916	}
1620		1917
		1918	#if EV_STAT_ENABLE
		1919
		1920	# ifdef _WIN32
		1921	# undef lstat
		1922	# define lstat(a,b) _stati64 (a,b)
		1923	# endif
		1924
		1925	#define DEF_STAT_INTERVAL 5.0074891
		1926	#define MIN_STAT_INTERVAL 0.1074891
		1927
		1928	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1929
		1930	#if EV_USE_INOTIFY
		1931	# define EV_INOTIFY_BUFSIZE 8192
		1932
		1933	static void noinline
		1934	infy_add (EV_P_ ev_stat *w)
		1935	{
		1936	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);
		1937
		1938	if (w->wd < 0)
		1939	{
		1940	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1941
		1942	/* monitor some parent directory for speedup hints */
		1943	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1944	{
		1945	char path [4096];
		1946	strcpy (path, w->path);
		1947
		1948	do
		1949	{
		1950	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1951	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1952
		1953	char *pend = strrchr (path, '/');
		1954
		1955	if (!pend)
		1956	break; /* whoops, no '/', complain to your admin */
		1957
		1958	*pend = 0;
		1959	w->wd = inotify_add_watch (fs_fd, path, mask);
		1960	}
		1961	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1962	}
		1963	}
		1964	else
		1965	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1966
		1967	if (w->wd >= 0)
		1968	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1969	}
		1970
		1971	static void noinline
		1972	infy_del (EV_P_ ev_stat *w)
		1973	{
		1974	int slot;
		1975	int wd = w->wd;
		1976
		1977	if (wd < 0)
		1978	return;
		1979
		1980	w->wd = -2;
		1981	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		1982	wlist_del (&fs_hash [slot].head, (WL)w);
		1983
		1984	/* remove this watcher, if others are watching it, they will rearm */
		1985	inotify_rm_watch (fs_fd, wd);
		1986	}
		1987
		1988	static void noinline
		1989	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		1990	{
		1991	if (slot < 0)
		1992	/* overflow, need to check for all hahs slots */
		1993	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		1994	infy_wd (EV_A_ slot, wd, ev);
		1995	else
		1996	{
		1997	WL w_;
		1998
		1999	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2000	{
		2001	ev_stat *w = (ev_stat *)w_;
		2002	w_ = w_->next; /* lets us remove this watcher and all before it */
		2003
		2004	if (w->wd == wd || wd == -1)
		2005	{
		2006	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2007	{
		2008	w->wd = -1;
		2009	infy_add (EV_A_ w); /* re-add, no matter what */
		2010	}
		2011
		2012	stat_timer_cb (EV_A_ &w->timer, 0);
		2013	}
		2014	}
		2015	}
		2016	}
		2017
		2018	static void
		2019	infy_cb (EV_P_ ev_io *w, int revents)
		2020	{
		2021	char buf [EV_INOTIFY_BUFSIZE];
		2022	struct inotify_event *ev = (struct inotify_event *)buf;
		2023	int ofs;
		2024	int len = read (fs_fd, buf, sizeof (buf));
		2025
		2026	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2027	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2028	}
		2029
		2030	void inline_size
		2031	infy_init (EV_P)
		2032	{
		2033	if (fs_fd != -2)
		2034	return;
		2035
		2036	fs_fd = inotify_init ();
		2037
		2038	if (fs_fd >= 0)
		2039	{
		2040	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2041	ev_set_priority (&fs_w, EV_MAXPRI);
		2042	ev_io_start (EV_A_ &fs_w);
		2043	}
		2044	}
		2045
		2046	void inline_size
		2047	infy_fork (EV_P)
		2048	{
		2049	int slot;
		2050
		2051	if (fs_fd < 0)
		2052	return;
		2053
		2054	close (fs_fd);
		2055	fs_fd = inotify_init ();
		2056
		2057	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2058	{
		2059	WL w_ = fs_hash [slot].head;
		2060	fs_hash [slot].head = 0;
		2061
		2062	while (w_)
		2063	{
		2064	ev_stat *w = (ev_stat *)w_;
		2065	w_ = w_->next; /* lets us add this watcher */
		2066
		2067	w->wd = -1;
		2068
		2069	if (fs_fd >= 0)
		2070	infy_add (EV_A_ w); /* re-add, no matter what */
		2071	else
		2072	ev_timer_start (EV_A_ &w->timer);
		2073	}
		2074
		2075	}
		2076	}
		2077
		2078	#endif
		2079
		2080	void
		2081	ev_stat_stat (EV_P_ ev_stat *w)
		2082	{
		2083	if (lstat (w->path, &w->attr) < 0)
		2084	w->attr.st_nlink = 0;
		2085	else if (!w->attr.st_nlink)
		2086	w->attr.st_nlink = 1;
		2087	}
		2088
		2089	static void noinline
		2090	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		2091	{
		2092	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2093
		2094	/* we copy this here each the time so that */
		2095	/* prev has the old value when the callback gets invoked */
		2096	w->prev = w->attr;
		2097	ev_stat_stat (EV_A_ w);
		2098
		2099	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2100	if (
		2101	w->prev.st_dev != w->attr.st_dev
		2102	|| w->prev.st_ino != w->attr.st_ino
		2103	|| w->prev.st_mode != w->attr.st_mode
		2104	|| w->prev.st_nlink != w->attr.st_nlink
		2105	|| w->prev.st_uid != w->attr.st_uid
		2106	|| w->prev.st_gid != w->attr.st_gid
		2107	|| w->prev.st_rdev != w->attr.st_rdev
		2108	|| w->prev.st_size != w->attr.st_size
		2109	|| w->prev.st_atime != w->attr.st_atime
		2110	|| w->prev.st_mtime != w->attr.st_mtime
		2111	|| w->prev.st_ctime != w->attr.st_ctime
		2112	) {
		2113	#if EV_USE_INOTIFY
		2114	infy_del (EV_A_ w);
		2115	infy_add (EV_A_ w);
		2116	ev_stat_stat (EV_A_ w); /* avoid race... */
		2117	#endif
		2118
		2119	ev_feed_event (EV_A_ w, EV_STAT);
		2120	}
		2121	}
		2122
		2123	void
		2124	ev_stat_start (EV_P_ ev_stat *w)
		2125	{
		2126	if (expect_false (ev_is_active (w)))
		2127	return;
		2128
		2129	/* since we use memcmp, we need to clear any padding data etc. */
		2130	memset (&w->prev, 0, sizeof (ev_statdata));
		2131	memset (&w->attr, 0, sizeof (ev_statdata));
		2132
		2133	ev_stat_stat (EV_A_ w);
		2134
		2135	if (w->interval < MIN_STAT_INTERVAL)
		2136	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2137
		2138	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2139	ev_set_priority (&w->timer, ev_priority (w));
		2140
		2141	#if EV_USE_INOTIFY
		2142	infy_init (EV_A);
		2143
		2144	if (fs_fd >= 0)
		2145	infy_add (EV_A_ w);
		2146	else
		2147	#endif
		2148	ev_timer_start (EV_A_ &w->timer);
		2149
		2150	ev_start (EV_A_ (W)w, 1);
		2151	}
		2152
		2153	void
		2154	ev_stat_stop (EV_P_ ev_stat *w)
		2155	{
		2156	clear_pending (EV_A_ (W)w);
		2157	if (expect_false (!ev_is_active (w)))
		2158	return;
		2159
		2160	#if EV_USE_INOTIFY
		2161	infy_del (EV_A_ w);
		2162	#endif
		2163	ev_timer_stop (EV_A_ &w->timer);
		2164
		2165	ev_stop (EV_A_ (W)w);
		2166	}
		2167	#endif
		2168
		2169	#if EV_IDLE_ENABLE
		2170	void
		2171	ev_idle_start (EV_P_ ev_idle *w)
		2172	{
		2173	if (expect_false (ev_is_active (w)))
		2174	return;
		2175
		2176	pri_adjust (EV_A_ (W)w);
		2177
		2178	{
		2179	int active = ++idlecnt [ABSPRI (w)];
		2180
		2181	++idleall;
		2182	ev_start (EV_A_ (W)w, active);
		2183
		2184	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2185	idles [ABSPRI (w)][active - 1] = w;
		2186	}
		2187	}
		2188
		2189	void
		2190	ev_idle_stop (EV_P_ ev_idle *w)
		2191	{
		2192	clear_pending (EV_A_ (W)w);
		2193	if (expect_false (!ev_is_active (w)))
		2194	return;
		2195
		2196	{
		2197	int active = ((W)w)->active;
		2198
		2199	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2200	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2201
		2202	ev_stop (EV_A_ (W)w);
		2203	--idleall;
		2204	}
		2205	}
		2206	#endif
		2207
		2208	void
		2209	ev_prepare_start (EV_P_ ev_prepare *w)
		2210	{
		2211	if (expect_false (ev_is_active (w)))
		2212	return;
		2213
		2214	ev_start (EV_A_ (W)w, ++preparecnt);
		2215	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2216	prepares [preparecnt - 1] = w;
		2217	}
		2218
		2219	void
		2220	ev_prepare_stop (EV_P_ ev_prepare *w)
		2221	{
		2222	clear_pending (EV_A_ (W)w);
		2223	if (expect_false (!ev_is_active (w)))
		2224	return;
		2225
		2226	{
		2227	int active = ((W)w)->active;
		2228	prepares [active - 1] = prepares [--preparecnt];
		2229	((W)prepares [active - 1])->active = active;
		2230	}
		2231
		2232	ev_stop (EV_A_ (W)w);
		2233	}
		2234
		2235	void
		2236	ev_check_start (EV_P_ ev_check *w)
		2237	{
		2238	if (expect_false (ev_is_active (w)))
		2239	return;
		2240
		2241	ev_start (EV_A_ (W)w, ++checkcnt);
		2242	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2243	checks [checkcnt - 1] = w;
		2244	}
		2245
		2246	void
		2247	ev_check_stop (EV_P_ ev_check *w)
		2248	{
		2249	clear_pending (EV_A_ (W)w);
		2250	if (expect_false (!ev_is_active (w)))
		2251	return;
		2252
		2253	{
		2254	int active = ((W)w)->active;
		2255	checks [active - 1] = checks [--checkcnt];
		2256	((W)checks [active - 1])->active = active;
		2257	}
		2258
		2259	ev_stop (EV_A_ (W)w);
		2260	}
		2261
		2262	#if EV_EMBED_ENABLE
		2263	void noinline
		2264	ev_embed_sweep (EV_P_ ev_embed *w)
		2265	{
		2266	ev_loop (w->other, EVLOOP_NONBLOCK);
		2267	}
		2268
		2269	static void
		2270	embed_io_cb (EV_P_ ev_io *io, int revents)
		2271	{
		2272	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		2273
		2274	if (ev_cb (w))
		2275	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		2276	else
		2277	ev_loop (w->other, EVLOOP_NONBLOCK);
		2278	}
		2279
		2280	static void
		2281	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2282	{
		2283	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2284
		2285	{
		2286	struct ev_loop *loop = w->other;
		2287
		2288	while (fdchangecnt)
		2289	{
		2290	fd_reify (EV_A);
		2291	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2292	}
		2293	}
		2294	}
		2295
		2296	#if 0
		2297	static void
		2298	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2299	{
		2300	ev_idle_stop (EV_A_ idle);
		2301	}
		2302	#endif
		2303
		2304	void
		2305	ev_embed_start (EV_P_ ev_embed *w)
		2306	{
		2307	if (expect_false (ev_is_active (w)))
		2308	return;
		2309
		2310	{
		2311	struct ev_loop *loop = w->other;
		2312	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		2313	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
		2314	}
		2315
		2316	ev_set_priority (&w->io, ev_priority (w));
		2317	ev_io_start (EV_A_ &w->io);
		2318
		2319	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2320	ev_set_priority (&w->prepare, EV_MINPRI);
		2321	ev_prepare_start (EV_A_ &w->prepare);
		2322
		2323	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2324
		2325	ev_start (EV_A_ (W)w, 1);
		2326	}
		2327
		2328	void
		2329	ev_embed_stop (EV_P_ ev_embed *w)
		2330	{
		2331	clear_pending (EV_A_ (W)w);
		2332	if (expect_false (!ev_is_active (w)))
		2333	return;
		2334
		2335	ev_io_stop (EV_A_ &w->io);
		2336	ev_prepare_stop (EV_A_ &w->prepare);
		2337
		2338	ev_stop (EV_A_ (W)w);
		2339	}
		2340	#endif
		2341
		2342	#if EV_FORK_ENABLE
		2343	void
		2344	ev_fork_start (EV_P_ ev_fork *w)
		2345	{
		2346	if (expect_false (ev_is_active (w)))
		2347	return;
		2348
		2349	ev_start (EV_A_ (W)w, ++forkcnt);
		2350	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2351	forks [forkcnt - 1] = w;
		2352	}
		2353
		2354	void
		2355	ev_fork_stop (EV_P_ ev_fork *w)
		2356	{
		2357	clear_pending (EV_A_ (W)w);
		2358	if (expect_false (!ev_is_active (w)))
		2359	return;
		2360
		2361	{
		2362	int active = ((W)w)->active;
		2363	forks [active - 1] = forks [--forkcnt];
		2364	((W)forks [active - 1])->active = active;
		2365	}
		2366
		2367	ev_stop (EV_A_ (W)w);
		2368	}
		2369	#endif
		2370
1621	/*****************************************************************************/	2371	/*****************************************************************************/
1622		2372
1623	struct ev_once	2373	struct ev_once
1624	{	2374	{
1625	struct ev_io io;	2375	ev_io io;
1626	struct ev_timer to;	2376	ev_timer to;
1627	void (*cb)(int revents, void *arg);	2377	void (*cb)(int revents, void *arg);
1628	void *arg;	2378	void *arg;
1629	};	2379	};
1630		2380
1631	static void	2381	static void
…		…
1640		2390
1641	cb (revents, arg);	2391	cb (revents, arg);
1642	}	2392	}
1643		2393
1644	static void	2394	static void
1645	once_cb_io (EV_P_ struct ev_io *w, int revents)	2395	once_cb_io (EV_P_ ev_io *w, int revents)
1646	{	2396	{
1647	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	2397	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1648	}	2398	}
1649		2399
1650	static void	2400	static void
1651	once_cb_to (EV_P_ struct ev_timer *w, int revents)	2401	once_cb_to (EV_P_ ev_timer *w, int revents)
1652	{	2402	{
1653	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	2403	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1654	}	2404	}
1655		2405
1656	void	2406	void
…		…
1680	ev_timer_set (&once->to, timeout, 0.);	2430	ev_timer_set (&once->to, timeout, 0.);
1681	ev_timer_start (EV_A_ &once->to);	2431	ev_timer_start (EV_A_ &once->to);
1682	}	2432	}
1683	}	2433	}
1684		2434
		2435	#if EV_MULTIPLICITY
		2436	#include "ev_wrap.h"
		2437	#endif
		2438
1685	#ifdef __cplusplus	2439	#ifdef __cplusplus
1686	}	2440	}
1687	#endif	2441	#endif
1688		2442

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