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Comparing libev/ev.c (file contents):
Revision 1.137 by root, Sat Nov 24 08:28:10 2007 UTC vs.
Revision 1.206 by root, Fri Jan 25 15:45:08 2008 UTC

…		…
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
9	* met:	9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
10	*	27	*
11	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
12	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
13	*	30	* in which case the provisions of the GPL are applicable instead of
14	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
15	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
16	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
17	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
18	*	35	* and other provisions required by the GPL. If you do not delete the
19	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
20	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
21	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	38	*/
31		39
32	#ifdef __cplusplus	40	#ifdef __cplusplus
33	extern "C" {	41	extern "C" {
34	#endif	42	#endif
…		…
51	# ifndef EV_USE_MONOTONIC	59	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	60	# define EV_USE_MONOTONIC 0
53	# endif	61	# endif
54	# ifndef EV_USE_REALTIME	62	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	63	# define EV_USE_REALTIME 0
		64	# endif
		65	# endif
		66
		67	# ifndef EV_USE_NANOSLEEP
		68	# if HAVE_NANOSLEEP
		69	# define EV_USE_NANOSLEEP 1
		70	# else
		71	# define EV_USE_NANOSLEEP 0
56	# endif	72	# endif
57	# endif	73	# endif
58		74
59	# ifndef EV_USE_SELECT	75	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	76	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
94	# else	110	# else
95	# define EV_USE_PORT 0	111	# define EV_USE_PORT 0
96	# endif	112	# endif
97	# endif	113	# endif
98		114
		115	# ifndef EV_USE_INOTIFY
		116	# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
		117	# define EV_USE_INOTIFY 1
		118	# else
		119	# define EV_USE_INOTIFY 0
		120	# endif
		121	# endif
		122
99	#endif	123	#endif
100		124
101	#include <math.h>	125	#include <math.h>
102	#include <stdlib.h>	126	#include <stdlib.h>
103	#include <fcntl.h>	127	#include <fcntl.h>
…		…
110	#include <sys/types.h>	134	#include <sys/types.h>
111	#include <time.h>	135	#include <time.h>
112		136
113	#include <signal.h>	137	#include <signal.h>
114		138
		139	#ifdef EV_H
		140	# include EV_H
		141	#else
		142	# include "ev.h"
		143	#endif
		144
115	#ifndef _WIN32	145	#ifndef _WIN32
116	# include <unistd.h>
117	# include <sys/time.h>	146	# include <sys/time.h>
118	# include <sys/wait.h>	147	# include <sys/wait.h>
		148	# include <unistd.h>
119	#else	149	#else
120	# define WIN32_LEAN_AND_MEAN	150	# define WIN32_LEAN_AND_MEAN
121	# include <windows.h>	151	# include <windows.h>
122	# ifndef EV_SELECT_IS_WINSOCKET	152	# ifndef EV_SELECT_IS_WINSOCKET
123	# define EV_SELECT_IS_WINSOCKET 1	153	# define EV_SELECT_IS_WINSOCKET 1
…		…
132		162
133	#ifndef EV_USE_REALTIME	163	#ifndef EV_USE_REALTIME
134	# define EV_USE_REALTIME 0	164	# define EV_USE_REALTIME 0
135	#endif	165	#endif
136		166
		167	#ifndef EV_USE_NANOSLEEP
		168	# define EV_USE_NANOSLEEP 0
		169	#endif
		170
137	#ifndef EV_USE_SELECT	171	#ifndef EV_USE_SELECT
138	# define EV_USE_SELECT 1	172	# define EV_USE_SELECT 1
139	#endif	173	#endif
140		174
141	#ifndef EV_USE_POLL	175	#ifndef EV_USE_POLL
…		…
156		190
157	#ifndef EV_USE_PORT	191	#ifndef EV_USE_PORT
158	# define EV_USE_PORT 0	192	# define EV_USE_PORT 0
159	#endif	193	#endif
160		194
		195	#ifndef EV_USE_INOTIFY
		196	# define EV_USE_INOTIFY 0
		197	#endif
		198
		199	#ifndef EV_PID_HASHSIZE
		200	# if EV_MINIMAL
		201	# define EV_PID_HASHSIZE 1
		202	# else
		203	# define EV_PID_HASHSIZE 16
		204	# endif
		205	#endif
		206
		207	#ifndef EV_INOTIFY_HASHSIZE
		208	# if EV_MINIMAL
		209	# define EV_INOTIFY_HASHSIZE 1
		210	# else
		211	# define EV_INOTIFY_HASHSIZE 16
		212	# endif
		213	#endif
		214
161	/**/	215	/**/
162		216
163	#ifndef CLOCK_MONOTONIC	217	#ifndef CLOCK_MONOTONIC
164	# undef EV_USE_MONOTONIC	218	# undef EV_USE_MONOTONIC
165	# define EV_USE_MONOTONIC 0	219	# define EV_USE_MONOTONIC 0
…		…
168	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
169	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
170	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
171	#endif	225	#endif
172		226
		227	#if !EV_STAT_ENABLE
		228	# undef EV_USE_INOTIFY
		229	# define EV_USE_INOTIFY 0
		230	#endif
		231
		232	#if !EV_USE_NANOSLEEP
		233	# ifndef _WIN32
		234	# include <sys/select.h>
		235	# endif
		236	#endif
		237
		238	#if EV_USE_INOTIFY
		239	# include <sys/inotify.h>
		240	#endif
		241
173	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
174	# include <winsock.h>	243	# include <winsock.h>
175	#endif	244	#endif
176		245
177	/**/	246	/**/
178		247
		248	/*
		249	* This is used to avoid floating point rounding problems.
		250	* It is added to ev_rt_now when scheduling periodics
		251	* to ensure progress, time-wise, even when rounding
		252	* errors are against us.
		253	* This value is good at least till the year 4000.
		254	* Better solutions welcome.
		255	*/
		256	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
		257
179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	258	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	259	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
182	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	260	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
183		261
184	#ifdef EV_H
185	# include EV_H
186	#else
187	# include "ev.h"
188	#endif
189
190	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
191	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
192	# define inline static inline	264	# define noinline __attribute__ ((noinline))
193	#else	265	#else
194	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
195	# define inline static	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
196	#endif	271	#endif
197		272
198	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
199	#define expect_true(expr) expect ((expr) != 0, 1)	274	#define expect_true(expr) expect ((expr) != 0, 1)
		275	#define inline_size static inline
		276
		277	#if EV_MINIMAL
		278	# define inline_speed static noinline
		279	#else
		280	# define inline_speed static inline
		281	#endif
200		282
201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
203		285
204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
205	#define EMPTY2(a,b) /* used to suppress some warnings */	287	#define EMPTY2(a,b) /* used to suppress some warnings */
206		288
207	typedef ev_watcher *W;	289	typedef ev_watcher *W;
208	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
209	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
210		292
		293	#if EV_USE_MONOTONIC
		294	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		295	/* giving it a reasonably high chance of working on typical architetcures */
211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
212		298
213	#ifdef _WIN32	299	#ifdef _WIN32
214	# include "ev_win32.c"	300	# include "ev_win32.c"
215	#endif	301	#endif
216		302
217	/*****************************************************************************/	303	/*****************************************************************************/
218		304
219	static void (*syserr_cb)(const char *msg);	305	static void (*syserr_cb)(const char *msg);
220		306
		307	void
221	void ev_set_syserr_cb (void (*cb)(const char *msg))	308	ev_set_syserr_cb (void (*cb)(const char *msg))
222	{	309	{
223	syserr_cb = cb;	310	syserr_cb = cb;
224	}	311	}
225		312
226	static void	313	static void noinline
227	syserr (const char *msg)	314	syserr (const char *msg)
228	{	315	{
229	if (!msg)	316	if (!msg)
230	msg = "(libev) system error";	317	msg = "(libev) system error";
231		318
…		…
238	}	325	}
239	}	326	}
240		327
241	static void *(*alloc)(void *ptr, long size);	328	static void *(*alloc)(void *ptr, long size);
242		329
		330	void
243	void ev_set_allocator (void *(*cb)(void *ptr, long size))	331	ev_set_allocator (void *(*cb)(void *ptr, long size))
244	{	332	{
245	alloc = cb;	333	alloc = cb;
246	}	334	}
247		335
248	static void *	336	inline_speed void *
249	ev_realloc (void *ptr, long size)	337	ev_realloc (void *ptr, long size)
250	{	338	{
251	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	339	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
252		340
253	if (!ptr && size)	341	if (!ptr && size)
…		…
277	typedef struct	365	typedef struct
278	{	366	{
279	W w;	367	W w;
280	int events;	368	int events;
281	} ANPENDING;	369	} ANPENDING;
		370
		371	#if EV_USE_INOTIFY
		372	typedef struct
		373	{
		374	WL head;
		375	} ANFS;
		376	#endif
282		377
283	#if EV_MULTIPLICITY	378	#if EV_MULTIPLICITY
284		379
285	struct ev_loop	380	struct ev_loop
286	{	381	{
…		…
320	gettimeofday (&tv, 0);	415	gettimeofday (&tv, 0);
321	return tv.tv_sec + tv.tv_usec * 1e-6;	416	return tv.tv_sec + tv.tv_usec * 1e-6;
322	#endif	417	#endif
323	}	418	}
324		419
325	inline ev_tstamp	420	ev_tstamp inline_size
326	get_clock (void)	421	get_clock (void)
327	{	422	{
328	#if EV_USE_MONOTONIC	423	#if EV_USE_MONOTONIC
329	if (expect_true (have_monotonic))	424	if (expect_true (have_monotonic))
330	{	425	{
…		…
343	{	438	{
344	return ev_rt_now;	439	return ev_rt_now;
345	}	440	}
346	#endif	441	#endif
347		442
348	#define array_roundsize(type,n) (((n) | 4) & ~3)	443	void
		444	ev_sleep (ev_tstamp delay)
		445	{
		446	if (delay > 0.)
		447	{
		448	#if EV_USE_NANOSLEEP
		449	struct timespec ts;
		450
		451	ts.tv_sec = (time_t)delay;
		452	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		453
		454	nanosleep (&ts, 0);
		455	#elif defined(_WIN32)
		456	Sleep (delay * 1e3);
		457	#else
		458	struct timeval tv;
		459
		460	tv.tv_sec = (time_t)delay;
		461	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		462
		463	select (0, 0, 0, 0, &tv);
		464	#endif
		465	}
		466	}
		467
		468	/*****************************************************************************/
		469
		470	int inline_size
		471	array_nextsize (int elem, int cur, int cnt)
		472	{
		473	int ncur = cur + 1;
		474
		475	do
		476	ncur <<= 1;
		477	while (cnt > ncur);
		478
		479	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
		480	if (elem * ncur > 4096)
		481	{
		482	ncur *= elem;
		483	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
		484	ncur = ncur - sizeof (void *) * 4;
		485	ncur /= elem;
		486	}
		487
		488	return ncur;
		489	}
		490
		491	static noinline void *
		492	array_realloc (int elem, void *base, int *cur, int cnt)
		493	{
		494	*cur = array_nextsize (elem, *cur, cnt);
		495	return ev_realloc (base, elem * *cur);
		496	}
349		497
350	#define array_needsize(type,base,cur,cnt,init) \	498	#define array_needsize(type,base,cur,cnt,init) \
351	if (expect_false ((cnt) > cur)) \	499	if (expect_false ((cnt) > (cur))) \
352	{ \	500	{ \
353	int newcnt = cur; \	501	int ocur_ = (cur); \
354	do \	502	(base) = (type *)array_realloc \
355	{ \	503	(sizeof (type), (base), &(cur), (cnt)); \
356	newcnt = array_roundsize (type, newcnt << 1); \	504	init ((base) + (ocur_), (cur) - ocur_); \
357	} \
358	while ((cnt) > newcnt); \
359	\
360	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
361	init (base + cur, newcnt - cur); \
362	cur = newcnt; \
363	}	505	}
364		506
		507	#if 0
365	#define array_slim(type,stem) \	508	#define array_slim(type,stem) \
366	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	509	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
367	{ \	510	{ \
368	stem ## max = array_roundsize (stem ## cnt >> 1); \	511	stem ## max = array_roundsize (stem ## cnt >> 1); \
369	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	512	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	513	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
371	}	514	}
		515	#endif
372		516
373	#define array_free(stem, idx) \	517	#define array_free(stem, idx) \
374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	518	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
375		519
376	/*****************************************************************************/	520	/*****************************************************************************/
377		521
378	static void	522	void noinline
		523	ev_feed_event (EV_P_ void *w, int revents)
		524	{
		525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
		527
		528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events |= revents;
		530	else
		531	{
		532	w_->pending = ++pendingcnt [pri];
		533	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
		534	pendings [pri][w_->pending - 1].w = w_;
		535	pendings [pri][w_->pending - 1].events = revents;
		536	}
		537	}
		538
		539	void inline_speed
		540	queue_events (EV_P_ W *events, int eventcnt, int type)
		541	{
		542	int i;
		543
		544	for (i = 0; i < eventcnt; ++i)
		545	ev_feed_event (EV_A_ events [i], type);
		546	}
		547
		548	/*****************************************************************************/
		549
		550	void inline_size
379	anfds_init (ANFD *base, int count)	551	anfds_init (ANFD *base, int count)
380	{	552	{
381	while (count--)	553	while (count--)
382	{	554	{
383	base->head = 0;	555	base->head = 0;
…		…
386		558
387	++base;	559	++base;
388	}	560	}
389	}	561	}
390		562
391	void	563	void inline_speed
392	ev_feed_event (EV_P_ void *w, int revents)
393	{
394	W w_ = (W)w;
395
396	if (expect_false (w_->pending))
397	{
398	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
399	return;
400	}
401
402	w_->pending = ++pendingcnt [ABSPRI (w_)];
403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
406	}
407
408	static void
409	queue_events (EV_P_ W *events, int eventcnt, int type)
410	{
411	int i;
412
413	for (i = 0; i < eventcnt; ++i)
414	ev_feed_event (EV_A_ events [i], type);
415	}
416
417	inline void
418	fd_event (EV_P_ int fd, int revents)	564	fd_event (EV_P_ int fd, int revents)
419	{	565	{
420	ANFD *anfd = anfds + fd;	566	ANFD *anfd = anfds + fd;
421	ev_io *w;	567	ev_io *w;
422		568
…		…
430	}	576	}
431		577
432	void	578	void
433	ev_feed_fd_event (EV_P_ int fd, int revents)	579	ev_feed_fd_event (EV_P_ int fd, int revents)
434	{	580	{
		581	if (fd >= 0 && fd < anfdmax)
435	fd_event (EV_A_ fd, revents);	582	fd_event (EV_A_ fd, revents);
436	}	583	}
437		584
438	/*****************************************************************************/	585	void inline_size
439
440	inline void
441	fd_reify (EV_P)	586	fd_reify (EV_P)
442	{	587	{
443	int i;	588	int i;
444		589
445	for (i = 0; i < fdchangecnt; ++i)	590	for (i = 0; i < fdchangecnt; ++i)
446	{	591	{
447	int fd = fdchanges [i];	592	int fd = fdchanges [i];
448	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
449	ev_io *w;	594	ev_io *w;
450		595
451	int events = 0;	596	unsigned char events = 0;
452		597
453	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	598	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
454	events |= w->events;	599	events |= (unsigned char)w->events;
455		600
456	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
457	if (events)	602	if (events)
458	{	603	{
459	unsigned long argp;	604	unsigned long argp;
		605	#ifdef EV_FD_TO_WIN32_HANDLE
		606	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		607	#else
460	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	610	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
462	}	611	}
463	#endif	612	#endif
464		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
465	anfd->reify = 0;	618	anfd->reify = 0;
466
467	backend_modify (EV_A_ fd, anfd->events, events);
468	anfd->events = events;	619	anfd->events = events;
		620
		621	if (o_events != events || o_reify & EV_IOFDSET)
		622	backend_modify (EV_A_ fd, o_events, events);
		623	}
469	}	624	}
470		625
471	fdchangecnt = 0;	626	fdchangecnt = 0;
472	}	627	}
473		628
474	static void	629	void inline_size
475	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
476	{	631	{
477	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
478	return;
479
480	anfds [fd].reify = 1;	633	anfds [fd].reify |= flags;
481		634
		635	if (expect_true (!reify))
		636	{
482	++fdchangecnt;	637	++fdchangecnt;
483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
484	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
485	}	641	}
486		642
487	static void	643	void inline_speed
488	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
489	{	645	{
490	ev_io *w;	646	ev_io *w;
491		647
492	while ((w = (ev_io *)anfds [fd].head))	648	while ((w = (ev_io *)anfds [fd].head))
…		…
494	ev_io_stop (EV_A_ w);	650	ev_io_stop (EV_A_ w);
495	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	651	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
496	}	652	}
497	}	653	}
498		654
499	inline int	655	int inline_size
500	fd_valid (int fd)	656	fd_valid (int fd)
501	{	657	{
502	#ifdef _WIN32	658	#ifdef _WIN32
503	return _get_osfhandle (fd) != -1;	659	return _get_osfhandle (fd) != -1;
504	#else	660	#else
505	return fcntl (fd, F_GETFD) != -1;	661	return fcntl (fd, F_GETFD) != -1;
506	#endif	662	#endif
507	}	663	}
508		664
509	/* called on EBADF to verify fds */	665	/* called on EBADF to verify fds */
510	static void	666	static void noinline
511	fd_ebadf (EV_P)	667	fd_ebadf (EV_P)
512	{	668	{
513	int fd;	669	int fd;
514		670
515	for (fd = 0; fd < anfdmax; ++fd)	671	for (fd = 0; fd < anfdmax; ++fd)
…		…
517	if (!fd_valid (fd) == -1 && errno == EBADF)	673	if (!fd_valid (fd) == -1 && errno == EBADF)
518	fd_kill (EV_A_ fd);	674	fd_kill (EV_A_ fd);
519	}	675	}
520		676
521	/* called on ENOMEM in select/poll to kill some fds and retry */	677	/* called on ENOMEM in select/poll to kill some fds and retry */
522	static void	678	static void noinline
523	fd_enomem (EV_P)	679	fd_enomem (EV_P)
524	{	680	{
525	int fd;	681	int fd;
526		682
527	for (fd = anfdmax; fd--; )	683	for (fd = anfdmax; fd--; )
…		…
531	return;	687	return;
532	}	688	}
533	}	689	}
534		690
535	/* usually called after fork if backend needs to re-arm all fds from scratch */	691	/* usually called after fork if backend needs to re-arm all fds from scratch */
536	static void	692	static void noinline
537	fd_rearm_all (EV_P)	693	fd_rearm_all (EV_P)
538	{	694	{
539	int fd;	695	int fd;
540		696
541	/* this should be highly optimised to not do anything but set a flag */
542	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
543	if (anfds [fd].events)	698	if (anfds [fd].events)
544	{	699	{
545	anfds [fd].events = 0;	700	anfds [fd].events = 0;
546	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET | 1);
547	}	702	}
548	}	703	}
549		704
550	/*****************************************************************************/	705	/*****************************************************************************/
551		706
552	static void	707	void inline_speed
553	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
554	{	709	{
555	WT w = heap [k];	710	WT w = heap [k];
556		711
557	while (k && heap [k >> 1]->at > w->at)	712	while (k)
558	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
559	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
560	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
561	k >>= 1;	721	k = p;
562	}	722	}
563		723
564	heap [k] = w;	724	heap [k] = w;
565	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
566
567	}	726	}
568		727
569	static void	728	void inline_speed
570	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
571	{	730	{
572	WT w = heap [k];	731	WT w = heap [k];
573		732
574	while (k < (N >> 1))	733	for (;;)
575	{	734	{
576	int j = k << 1;	735	int c = (k << 1) + 1;
577		736
578	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
579	++j;
580
581	if (w->at <= heap [j]->at)
582	break;	738	break;
583		739
		740	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
		741	? 1 : 0;
		742
		743	if (w->at <= heap [c]->at)
		744	break;
		745
584	heap [k] = heap [j];	746	heap [k] = heap [c];
585	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
586	k = j;	749	k = c;
587	}	750	}
588		751
589	heap [k] = w;	752	heap [k] = w;
590	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
591	}	754	}
592		755
593	inline void	756	void inline_size
594	adjustheap (WT *heap, int N, int k)	757	adjustheap (WT *heap, int N, int k)
595	{	758	{
596	upheap (heap, k);	759	upheap (heap, k);
597	downheap (heap, N, k);	760	downheap (heap, N, k);
598	}	761	}
…		…
610		773
611	static int sigpipe [2];	774	static int sigpipe [2];
612	static sig_atomic_t volatile gotsig;	775	static sig_atomic_t volatile gotsig;
613	static ev_io sigev;	776	static ev_io sigev;
614		777
615	static void	778	void inline_size
616	signals_init (ANSIG *base, int count)	779	signals_init (ANSIG *base, int count)
617	{	780	{
618	while (count--)	781	while (count--)
619	{	782	{
620	base->head = 0;	783	base->head = 0;
…		…
640	write (sigpipe [1], &signum, 1);	803	write (sigpipe [1], &signum, 1);
641	errno = old_errno;	804	errno = old_errno;
642	}	805	}
643	}	806	}
644		807
645	void	808	void noinline
646	ev_feed_signal_event (EV_P_ int signum)	809	ev_feed_signal_event (EV_P_ int signum)
647	{	810	{
648	WL w;	811	WL w;
649		812
650	#if EV_MULTIPLICITY	813	#if EV_MULTIPLICITY
…		…
673	for (signum = signalmax; signum--; )	836	for (signum = signalmax; signum--; )
674	if (signals [signum].gotsig)	837	if (signals [signum].gotsig)
675	ev_feed_signal_event (EV_A_ signum + 1);	838	ev_feed_signal_event (EV_A_ signum + 1);
676	}	839	}
677		840
678	static void	841	void inline_speed
679	fd_intern (int fd)	842	fd_intern (int fd)
680	{	843	{
681	#ifdef _WIN32	844	#ifdef _WIN32
682	int arg = 1;	845	int arg = 1;
683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	846	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
685	fcntl (fd, F_SETFD, FD_CLOEXEC);	848	fcntl (fd, F_SETFD, FD_CLOEXEC);
686	fcntl (fd, F_SETFL, O_NONBLOCK);	849	fcntl (fd, F_SETFL, O_NONBLOCK);
687	#endif	850	#endif
688	}	851	}
689		852
690	static void	853	static void noinline
691	siginit (EV_P)	854	siginit (EV_P)
692	{	855	{
693	fd_intern (sigpipe [0]);	856	fd_intern (sigpipe [0]);
694	fd_intern (sigpipe [1]);	857	fd_intern (sigpipe [1]);
695		858
…		…
698	ev_unref (EV_A); /* child watcher should not keep loop alive */	861	ev_unref (EV_A); /* child watcher should not keep loop alive */
699	}	862	}
700		863
701	/*****************************************************************************/	864	/*****************************************************************************/
702		865
703	static ev_child *childs [PID_HASHSIZE];	866	static WL childs [EV_PID_HASHSIZE];
704		867
705	#ifndef _WIN32	868	#ifndef _WIN32
706		869
707	static ev_signal childev;	870	static ev_signal childev;
		871
		872	#ifndef WIFCONTINUED
		873	# define WIFCONTINUED(status) 0
		874	#endif
		875
		876	void inline_speed
		877	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
		878	{
		879	ev_child *w;
		880	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
		881
		882	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		883	{
		884	if ((w->pid == pid || !w->pid)
		885	&& (!traced || (w->flags & 1)))
		886	{
		887	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
		888	w->rpid = pid;
		889	w->rstatus = status;
		890	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		891	}
		892	}
		893	}
708		894
709	#ifndef WCONTINUED	895	#ifndef WCONTINUED
710	# define WCONTINUED 0	896	# define WCONTINUED 0
711	#endif	897	#endif
712		898
713	static void	899	static void
714	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
715	{
716	ev_child *w;
717
718	for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
719	if (w->pid == pid || !w->pid)
720	{
721	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
722	w->rpid = pid;
723	w->rstatus = status;
724	ev_feed_event (EV_A_ (W)w, EV_CHILD);
725	}
726	}
727
728	static void
729	childcb (EV_P_ ev_signal *sw, int revents)	900	childcb (EV_P_ ev_signal *sw, int revents)
730	{	901	{
731	int pid, status;	902	int pid, status;
732		903
		904	/* some systems define WCONTINUED but then fail to support it (linux 2.4) */
733	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	905	if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
734	{	906	if (!WCONTINUED
		907	|| errno != EINVAL
		908	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
		909	return;
		910
735	/* make sure we are called again until all childs have been reaped */	911	/* make sure we are called again until all childs have been reaped */
736	/* we need to do it this way so that the callback gets called before we continue */	912	/* we need to do it this way so that the callback gets called before we continue */
737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	913	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
738		914
739	child_reap (EV_A_ sw, pid, pid, status);	915	child_reap (EV_A_ sw, pid, pid, status);
		916	if (EV_PID_HASHSIZE > 1)
740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	917	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
741	}
742	}	918	}
743		919
744	#endif	920	#endif
745		921
746	/*****************************************************************************/	922	/*****************************************************************************/
…		…
772	{	948	{
773	return EV_VERSION_MINOR;	949	return EV_VERSION_MINOR;
774	}	950	}
775		951
776	/* return true if we are running with elevated privileges and should ignore env variables */	952	/* return true if we are running with elevated privileges and should ignore env variables */
777	static int	953	int inline_size
778	enable_secure (void)	954	enable_secure (void)
779	{	955	{
780	#ifdef _WIN32	956	#ifdef _WIN32
781	return 0;	957	return 0;
782	#else	958	#else
…		…
818	}	994	}
819		995
820	unsigned int	996	unsigned int
821	ev_embeddable_backends (void)	997	ev_embeddable_backends (void)
822	{	998	{
823	return EVBACKEND_EPOLL	999	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
824	| EVBACKEND_KQUEUE	1000
825	| EVBACKEND_PORT;	1001	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1002	/* please fix it and tell me how to detect the fix */
		1003	flags &= ~EVBACKEND_EPOLL;
		1004
		1005	return flags;
826	}	1006	}
827		1007
828	unsigned int	1008	unsigned int
829	ev_backend (EV_P)	1009	ev_backend (EV_P)
830	{	1010	{
831	return backend;	1011	return backend;
832	}	1012	}
833		1013
834	static void	1014	unsigned int
		1015	ev_loop_count (EV_P)
		1016	{
		1017	return loop_count;
		1018	}
		1019
		1020	void
		1021	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1022	{
		1023	io_blocktime = interval;
		1024	}
		1025
		1026	void
		1027	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1028	{
		1029	timeout_blocktime = interval;
		1030	}
		1031
		1032	static void noinline
835	loop_init (EV_P_ unsigned int flags)	1033	loop_init (EV_P_ unsigned int flags)
836	{	1034	{
837	if (!backend)	1035	if (!backend)
838	{	1036	{
839	#if EV_USE_MONOTONIC	1037	#if EV_USE_MONOTONIC
…		…
847	ev_rt_now = ev_time ();	1045	ev_rt_now = ev_time ();
848	mn_now = get_clock ();	1046	mn_now = get_clock ();
849	now_floor = mn_now;	1047	now_floor = mn_now;
850	rtmn_diff = ev_rt_now - mn_now;	1048	rtmn_diff = ev_rt_now - mn_now;
851		1049
		1050	io_blocktime = 0.;
		1051	timeout_blocktime = 0.;
		1052
		1053	/* pid check not overridable via env */
		1054	#ifndef _WIN32
		1055	if (flags & EVFLAG_FORKCHECK)
		1056	curpid = getpid ();
		1057	#endif
		1058
852	if (!(flags & EVFLAG_NOENV)	1059	if (!(flags & EVFLAG_NOENV)
853	&& !enable_secure ()	1060	&& !enable_secure ()
854	&& getenv ("LIBEV_FLAGS"))	1061	&& getenv ("LIBEV_FLAGS"))
855	flags = atoi (getenv ("LIBEV_FLAGS"));	1062	flags = atoi (getenv ("LIBEV_FLAGS"));
856		1063
857	if (!(flags & 0x0000ffffUL))	1064	if (!(flags & 0x0000ffffUL))
858	flags |= ev_recommended_backends ();	1065	flags |= ev_recommended_backends ();
859		1066
860	backend = 0;	1067	backend = 0;
		1068	backend_fd = -1;
		1069	#if EV_USE_INOTIFY
		1070	fs_fd = -2;
		1071	#endif
		1072
861	#if EV_USE_PORT	1073	#if EV_USE_PORT
862	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1074	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
863	#endif	1075	#endif
864	#if EV_USE_KQUEUE	1076	#if EV_USE_KQUEUE
865	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1077	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
877	ev_init (&sigev, sigcb);	1089	ev_init (&sigev, sigcb);
878	ev_set_priority (&sigev, EV_MAXPRI);	1090	ev_set_priority (&sigev, EV_MAXPRI);
879	}	1091	}
880	}	1092	}
881		1093
882	static void	1094	static void noinline
883	loop_destroy (EV_P)	1095	loop_destroy (EV_P)
884	{	1096	{
885	int i;	1097	int i;
		1098
		1099	#if EV_USE_INOTIFY
		1100	if (fs_fd >= 0)
		1101	close (fs_fd);
		1102	#endif
		1103
		1104	if (backend_fd >= 0)
		1105	close (backend_fd);
886		1106
887	#if EV_USE_PORT	1107	#if EV_USE_PORT
888	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1108	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
889	#endif	1109	#endif
890	#if EV_USE_KQUEUE	1110	#if EV_USE_KQUEUE
…		…
899	#if EV_USE_SELECT	1119	#if EV_USE_SELECT
900	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1120	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
901	#endif	1121	#endif
902		1122
903	for (i = NUMPRI; i--; )	1123	for (i = NUMPRI; i--; )
		1124	{
904	array_free (pending, [i]);	1125	array_free (pending, [i]);
		1126	#if EV_IDLE_ENABLE
		1127	array_free (idle, [i]);
		1128	#endif
		1129	}
		1130
		1131	ev_free (anfds); anfdmax = 0;
905		1132
906	/* have to use the microsoft-never-gets-it-right macro */	1133	/* have to use the microsoft-never-gets-it-right macro */
907	array_free (fdchange, EMPTY0);	1134	array_free (fdchange, EMPTY);
908	array_free (timer, EMPTY0);	1135	array_free (timer, EMPTY);
909	#if EV_PERIODICS	1136	#if EV_PERIODIC_ENABLE
910	array_free (periodic, EMPTY0);	1137	array_free (periodic, EMPTY);
911	#endif	1138	#endif
		1139	#if EV_FORK_ENABLE
912	array_free (idle, EMPTY0);	1140	array_free (fork, EMPTY);
		1141	#endif
913	array_free (prepare, EMPTY0);	1142	array_free (prepare, EMPTY);
914	array_free (check, EMPTY0);	1143	array_free (check, EMPTY);
915		1144
916	backend = 0;	1145	backend = 0;
917	}	1146	}
918		1147
919	static void	1148	void inline_size infy_fork (EV_P);
		1149
		1150	void inline_size
920	loop_fork (EV_P)	1151	loop_fork (EV_P)
921	{	1152	{
922	#if EV_USE_PORT	1153	#if EV_USE_PORT
923	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1154	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
924	#endif	1155	#endif
925	#if EV_USE_KQUEUE	1156	#if EV_USE_KQUEUE
926	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1157	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
927	#endif	1158	#endif
928	#if EV_USE_EPOLL	1159	#if EV_USE_EPOLL
929	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1160	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
		1161	#endif
		1162	#if EV_USE_INOTIFY
		1163	infy_fork (EV_A);
930	#endif	1164	#endif
931		1165
932	if (ev_is_active (&sigev))	1166	if (ev_is_active (&sigev))
933	{	1167	{
934	/* default loop */	1168	/* default loop */
…		…
940		1174
941	while (pipe (sigpipe))	1175	while (pipe (sigpipe))
942	syserr ("(libev) error creating pipe");	1176	syserr ("(libev) error creating pipe");
943		1177
944	siginit (EV_A);	1178	siginit (EV_A);
		1179	sigcb (EV_A_ &sigev, EV_READ);
945	}	1180	}
946		1181
947	postfork = 0;	1182	postfork = 0;
948	}	1183	}
949		1184
…		…
971	}	1206	}
972		1207
973	void	1208	void
974	ev_loop_fork (EV_P)	1209	ev_loop_fork (EV_P)
975	{	1210	{
976	postfork = 1;	1211	postfork = 1; /* must be in line with ev_default_fork */
977	}	1212	}
978		1213
979	#endif	1214	#endif
980		1215
981	#if EV_MULTIPLICITY	1216	#if EV_MULTIPLICITY
…		…
1045	#if EV_MULTIPLICITY	1280	#if EV_MULTIPLICITY
1046	struct ev_loop *loop = ev_default_loop_ptr;	1281	struct ev_loop *loop = ev_default_loop_ptr;
1047	#endif	1282	#endif
1048		1283
1049	if (backend)	1284	if (backend)
1050	postfork = 1;	1285	postfork = 1; /* must be in line with ev_loop_fork */
1051	}	1286	}
1052		1287
1053	/*****************************************************************************/	1288	/*****************************************************************************/
1054		1289
1055	static int	1290	void
1056	any_pending (EV_P)	1291	ev_invoke (EV_P_ void *w, int revents)
1057	{	1292	{
1058	int pri;	1293	EV_CB_INVOKE ((W)w, revents);
1059
1060	for (pri = NUMPRI; pri--; )
1061	if (pendingcnt [pri])
1062	return 1;
1063
1064	return 0;
1065	}	1294	}
1066		1295
1067	inline void	1296	void inline_speed
1068	call_pending (EV_P)	1297	call_pending (EV_P)
1069	{	1298	{
1070	int pri;	1299	int pri;
1071		1300
1072	for (pri = NUMPRI; pri--; )	1301	for (pri = NUMPRI; pri--; )
…		…
1074	{	1303	{
1075	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1304	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1076		1305
1077	if (expect_true (p->w))	1306	if (expect_true (p->w))
1078	{	1307	{
		1308	/*assert (("non-pending watcher on pending list", p->w->pending));*/
		1309
1079	p->w->pending = 0;	1310	p->w->pending = 0;
1080	EV_CB_INVOKE (p->w, p->events);	1311	EV_CB_INVOKE (p->w, p->events);
1081	}	1312	}
1082	}	1313	}
1083	}	1314	}
1084		1315
1085	inline void	1316	void inline_size
1086	timers_reify (EV_P)	1317	timers_reify (EV_P)
1087	{	1318	{
1088	while (timercnt && ((WT)timers [0])->at <= mn_now)	1319	while (timercnt && ((WT)timers [0])->at <= mn_now)
1089	{	1320	{
1090	ev_timer *w = timers [0];	1321	ev_timer *w = (ev_timer *)timers [0];
1091		1322
1092	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1323	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1093		1324
1094	/* first reschedule or stop timer */	1325	/* first reschedule or stop timer */
1095	if (w->repeat)	1326	if (w->repeat)
1096	{	1327	{
1097	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1328	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1098		1329
1099	((WT)w)->at += w->repeat;	1330	((WT)w)->at += w->repeat;
1100	if (((WT)w)->at < mn_now)	1331	if (((WT)w)->at < mn_now)
1101	((WT)w)->at = mn_now;	1332	((WT)w)->at = mn_now;
1102		1333
1103	downheap ((WT *)timers, timercnt, 0);	1334	downheap (timers, timercnt, 0);
1104	}	1335	}
1105	else	1336	else
1106	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1337	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1107		1338
1108	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1339	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1109	}	1340	}
1110	}	1341	}
1111		1342
1112	#if EV_PERIODICS	1343	#if EV_PERIODIC_ENABLE
1113	inline void	1344	void inline_size
1114	periodics_reify (EV_P)	1345	periodics_reify (EV_P)
1115	{	1346	{
1116	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1347	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1117	{	1348	{
1118	ev_periodic *w = periodics [0];	1349	ev_periodic *w = (ev_periodic *)periodics [0];
1119		1350
1120	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1351	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1121		1352
1122	/* first reschedule or stop timer */	1353	/* first reschedule or stop timer */
1123	if (w->reschedule_cb)	1354	if (w->reschedule_cb)
1124	{	1355	{
1125	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1356	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1126	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1357	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1127	downheap ((WT *)periodics, periodiccnt, 0);	1358	downheap (periodics, periodiccnt, 0);
1128	}	1359	}
1129	else if (w->interval)	1360	else if (w->interval)
1130	{	1361	{
1131	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1362	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1363	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1132	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1364	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1133	downheap ((WT *)periodics, periodiccnt, 0);	1365	downheap (periodics, periodiccnt, 0);
1134	}	1366	}
1135	else	1367	else
1136	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1368	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1137		1369
1138	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1370	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1139	}	1371	}
1140	}	1372	}
1141		1373
1142	static void	1374	static void noinline
1143	periodics_reschedule (EV_P)	1375	periodics_reschedule (EV_P)
1144	{	1376	{
1145	int i;	1377	int i;
1146		1378
1147	/* adjust periodics after time jump */	1379	/* adjust periodics after time jump */
1148	for (i = 0; i < periodiccnt; ++i)	1380	for (i = 0; i < periodiccnt; ++i)
1149	{	1381	{
1150	ev_periodic *w = periodics [i];	1382	ev_periodic *w = (ev_periodic *)periodics [i];
1151		1383
1152	if (w->reschedule_cb)	1384	if (w->reschedule_cb)
1153	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1154	else if (w->interval)	1386	else if (w->interval)
1155	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1387	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1156	}	1388	}
1157		1389
1158	/* now rebuild the heap */	1390	/* now rebuild the heap */
1159	for (i = periodiccnt >> 1; i--; )	1391	for (i = periodiccnt >> 1; i--; )
1160	downheap ((WT *)periodics, periodiccnt, i);	1392	downheap (periodics, periodiccnt, i);
1161	}	1393	}
1162	#endif	1394	#endif
1163		1395
1164	inline int	1396	#if EV_IDLE_ENABLE
1165	time_update_monotonic (EV_P)	1397	void inline_size
		1398	idle_reify (EV_P)
1166	{	1399	{
		1400	if (expect_false (idleall))
		1401	{
		1402	int pri;
		1403
		1404	for (pri = NUMPRI; pri--; )
		1405	{
		1406	if (pendingcnt [pri])
		1407	break;
		1408
		1409	if (idlecnt [pri])
		1410	{
		1411	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1412	break;
		1413	}
		1414	}
		1415	}
		1416	}
		1417	#endif
		1418
		1419	void inline_speed
		1420	time_update (EV_P_ ev_tstamp max_block)
		1421	{
		1422	int i;
		1423
		1424	#if EV_USE_MONOTONIC
		1425	if (expect_true (have_monotonic))
		1426	{
		1427	ev_tstamp odiff = rtmn_diff;
		1428
1167	mn_now = get_clock ();	1429	mn_now = get_clock ();
1168		1430
		1431	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1432	/* interpolate in the meantime */
1169	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1433	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1170	{	1434	{
1171	ev_rt_now = rtmn_diff + mn_now;	1435	ev_rt_now = rtmn_diff + mn_now;
1172	return 0;	1436	return;
1173	}	1437	}
1174	else	1438
1175	{
1176	now_floor = mn_now;	1439	now_floor = mn_now;
1177	ev_rt_now = ev_time ();	1440	ev_rt_now = ev_time ();
1178	return 1;
1179	}
1180	}
1181		1441
1182	inline void	1442	/* loop a few times, before making important decisions.
1183	time_update (EV_P)	1443	* on the choice of "4": one iteration isn't enough,
1184	{	1444	* in case we get preempted during the calls to
1185	int i;	1445	* ev_time and get_clock. a second call is almost guaranteed
1186		1446	* to succeed in that case, though. and looping a few more times
1187	#if EV_USE_MONOTONIC	1447	* doesn't hurt either as we only do this on time-jumps or
1188	if (expect_true (have_monotonic))	1448	* in the unlikely event of having been preempted here.
1189	{	1449	*/
1190	if (time_update_monotonic (EV_A))	1450	for (i = 4; --i; )
1191	{	1451	{
1192	ev_tstamp odiff = rtmn_diff;
1193
1194	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1195	{
1196	rtmn_diff = ev_rt_now - mn_now;	1452	rtmn_diff = ev_rt_now - mn_now;
1197		1453
1198	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1454	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1199	return; /* all is well */	1455	return; /* all is well */
1200		1456
1201	ev_rt_now = ev_time ();	1457	ev_rt_now = ev_time ();
1202	mn_now = get_clock ();	1458	mn_now = get_clock ();
1203	now_floor = mn_now;	1459	now_floor = mn_now;
1204	}	1460	}
1205		1461
1206	# if EV_PERIODICS	1462	# if EV_PERIODIC_ENABLE
		1463	periodics_reschedule (EV_A);
		1464	# endif
		1465	/* no timer adjustment, as the monotonic clock doesn't jump */
		1466	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
		1467	}
		1468	else
		1469	#endif
		1470	{
		1471	ev_rt_now = ev_time ();
		1472
		1473	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
		1474	{
		1475	#if EV_PERIODIC_ENABLE
1207	periodics_reschedule (EV_A);	1476	periodics_reschedule (EV_A);
1208	# endif	1477	#endif
1209	/* no timer adjustment, as the monotonic clock doesn't jump */
1210	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1211	}
1212	}
1213	else
1214	#endif
1215	{
1216	ev_rt_now = ev_time ();
1217
1218	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1219	{
1220	#if EV_PERIODICS
1221	periodics_reschedule (EV_A);
1222	#endif
1223
1224	/* adjust timers. this is easy, as the offset is the same for all */	1478	/* adjust timers. this is easy, as the offset is the same for all of them */
1225	for (i = 0; i < timercnt; ++i)	1479	for (i = 0; i < timercnt; ++i)
1226	((WT)timers [i])->at += ev_rt_now - mn_now;	1480	((WT)timers [i])->at += ev_rt_now - mn_now;
1227	}	1481	}
1228		1482
1229	mn_now = ev_rt_now;	1483	mn_now = ev_rt_now;
…		…
1249	{	1503	{
1250	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1504	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1251	? EVUNLOOP_ONE	1505	? EVUNLOOP_ONE
1252	: EVUNLOOP_CANCEL;	1506	: EVUNLOOP_CANCEL;
1253		1507
1254	while (activecnt)	1508	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1509
		1510	do
1255	{	1511	{
		1512	#ifndef _WIN32
		1513	if (expect_false (curpid)) /* penalise the forking check even more */
		1514	if (expect_false (getpid () != curpid))
		1515	{
		1516	curpid = getpid ();
		1517	postfork = 1;
		1518	}
		1519	#endif
		1520
		1521	#if EV_FORK_ENABLE
		1522	/* we might have forked, so queue fork handlers */
		1523	if (expect_false (postfork))
		1524	if (forkcnt)
		1525	{
		1526	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
		1527	call_pending (EV_A);
		1528	}
		1529	#endif
		1530
1256	/* queue check watchers (and execute them) */	1531	/* queue prepare watchers (and execute them) */
1257	if (expect_false (preparecnt))	1532	if (expect_false (preparecnt))
1258	{	1533	{
1259	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1534	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1260	call_pending (EV_A);	1535	call_pending (EV_A);
1261	}	1536	}
1262		1537
		1538	if (expect_false (!activecnt))
		1539	break;
		1540
1263	/* we might have forked, so reify kernel state if necessary */	1541	/* we might have forked, so reify kernel state if necessary */
1264	if (expect_false (postfork))	1542	if (expect_false (postfork))
1265	loop_fork (EV_A);	1543	loop_fork (EV_A);
1266		1544
1267	/* update fd-related kernel structures */	1545	/* update fd-related kernel structures */
1268	fd_reify (EV_A);	1546	fd_reify (EV_A);
1269		1547
1270	/* calculate blocking time */	1548	/* calculate blocking time */
1271	{	1549	{
1272	double block;	1550	ev_tstamp waittime = 0.;
		1551	ev_tstamp sleeptime = 0.;
1273		1552
1274	if (flags & EVLOOP_NONBLOCK || idlecnt)	1553	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1275	block = 0.; /* do not block at all */
1276	else
1277	{	1554	{
1278	/* update time to cancel out callback processing overhead */	1555	/* update time to cancel out callback processing overhead */
1279	#if EV_USE_MONOTONIC
1280	if (expect_true (have_monotonic))
1281	time_update_monotonic (EV_A);	1556	time_update (EV_A_ 1e100);
1282	else
1283	#endif
1284	{
1285	ev_rt_now = ev_time ();
1286	mn_now = ev_rt_now;
1287	}
1288		1557
1289	block = MAX_BLOCKTIME;	1558	waittime = MAX_BLOCKTIME;
1290		1559
1291	if (timercnt)	1560	if (timercnt)
1292	{	1561	{
1293	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1562	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1294	if (block > to) block = to;	1563	if (waittime > to) waittime = to;
1295	}	1564	}
1296		1565
1297	#if EV_PERIODICS	1566	#if EV_PERIODIC_ENABLE
1298	if (periodiccnt)	1567	if (periodiccnt)
1299	{	1568	{
1300	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1569	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1301	if (block > to) block = to;	1570	if (waittime > to) waittime = to;
1302	}	1571	}
1303	#endif	1572	#endif
1304		1573
1305	if (expect_false (block < 0.)) block = 0.;	1574	if (expect_false (waittime < timeout_blocktime))
		1575	waittime = timeout_blocktime;
		1576
		1577	sleeptime = waittime - backend_fudge;
		1578
		1579	if (expect_true (sleeptime > io_blocktime))
		1580	sleeptime = io_blocktime;
		1581
		1582	if (sleeptime)
		1583	{
		1584	ev_sleep (sleeptime);
		1585	waittime -= sleeptime;
		1586	}
1306	}	1587	}
1307		1588
		1589	++loop_count;
1308	backend_poll (EV_A_ block);	1590	backend_poll (EV_A_ waittime);
		1591
		1592	/* update ev_rt_now, do magic */
		1593	time_update (EV_A_ waittime + sleeptime);
1309	}	1594	}
1310
1311	/* update ev_rt_now, do magic */
1312	time_update (EV_A);
1313		1595
1314	/* queue pending timers and reschedule them */	1596	/* queue pending timers and reschedule them */
1315	timers_reify (EV_A); /* relative timers called last */	1597	timers_reify (EV_A); /* relative timers called last */
1316	#if EV_PERIODICS	1598	#if EV_PERIODIC_ENABLE
1317	periodics_reify (EV_A); /* absolute timers called first */	1599	periodics_reify (EV_A); /* absolute timers called first */
1318	#endif	1600	#endif
1319		1601
		1602	#if EV_IDLE_ENABLE
1320	/* queue idle watchers unless other events are pending */	1603	/* queue idle watchers unless other events are pending */
1321	if (idlecnt && !any_pending (EV_A))	1604	idle_reify (EV_A);
1322	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1605	#endif
1323		1606
1324	/* queue check watchers, to be executed first */	1607	/* queue check watchers, to be executed first */
1325	if (expect_false (checkcnt))	1608	if (expect_false (checkcnt))
1326	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1609	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1327		1610
1328	call_pending (EV_A);	1611	call_pending (EV_A);
1329		1612
1330	if (expect_false (loop_done))
1331	break;
1332	}	1613	}
		1614	while (expect_true (activecnt && !loop_done));
1333		1615
1334	if (loop_done == EVUNLOOP_ONE)	1616	if (loop_done == EVUNLOOP_ONE)
1335	loop_done = EVUNLOOP_CANCEL;	1617	loop_done = EVUNLOOP_CANCEL;
1336	}	1618	}
1337		1619
…		…
1341	loop_done = how;	1623	loop_done = how;
1342	}	1624	}
1343		1625
1344	/*****************************************************************************/	1626	/*****************************************************************************/
1345		1627
1346	inline void	1628	void inline_size
1347	wlist_add (WL *head, WL elem)	1629	wlist_add (WL *head, WL elem)
1348	{	1630	{
1349	elem->next = *head;	1631	elem->next = *head;
1350	*head = elem;	1632	*head = elem;
1351	}	1633	}
1352		1634
1353	inline void	1635	void inline_size
1354	wlist_del (WL *head, WL elem)	1636	wlist_del (WL *head, WL elem)
1355	{	1637	{
1356	while (*head)	1638	while (*head)
1357	{	1639	{
1358	if (*head == elem)	1640	if (*head == elem)
…		…
1363		1645
1364	head = &(*head)->next;	1646	head = &(*head)->next;
1365	}	1647	}
1366	}	1648	}
1367		1649
1368	inline void	1650	void inline_speed
1369	ev_clear_pending (EV_P_ W w)	1651	clear_pending (EV_P_ W w)
1370	{	1652	{
1371	if (w->pending)	1653	if (w->pending)
1372	{	1654	{
1373	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1655	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1374	w->pending = 0;	1656	w->pending = 0;
1375	}	1657	}
1376	}	1658	}
1377		1659
1378	inline void	1660	int
		1661	ev_clear_pending (EV_P_ void *w)
		1662	{
		1663	W w_ = (W)w;
		1664	int pending = w_->pending;
		1665
		1666	if (expect_true (pending))
		1667	{
		1668	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1669	w_->pending = 0;
		1670	p->w = 0;
		1671	return p->events;
		1672	}
		1673	else
		1674	return 0;
		1675	}
		1676
		1677	void inline_size
		1678	pri_adjust (EV_P_ W w)
		1679	{
		1680	int pri = w->priority;
		1681	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1682	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1683	w->priority = pri;
		1684	}
		1685
		1686	void inline_speed
1379	ev_start (EV_P_ W w, int active)	1687	ev_start (EV_P_ W w, int active)
1380	{	1688	{
1381	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1689	pri_adjust (EV_A_ w);
1382	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1383
1384	w->active = active;	1690	w->active = active;
1385	ev_ref (EV_A);	1691	ev_ref (EV_A);
1386	}	1692	}
1387		1693
1388	inline void	1694	void inline_size
1389	ev_stop (EV_P_ W w)	1695	ev_stop (EV_P_ W w)
1390	{	1696	{
1391	ev_unref (EV_A);	1697	ev_unref (EV_A);
1392	w->active = 0;	1698	w->active = 0;
1393	}	1699	}
1394		1700
1395	/*****************************************************************************/	1701	/*****************************************************************************/
1396		1702
1397	void	1703	void noinline
1398	ev_io_start (EV_P_ ev_io *w)	1704	ev_io_start (EV_P_ ev_io *w)
1399	{	1705	{
1400	int fd = w->fd;	1706	int fd = w->fd;
1401		1707
1402	if (expect_false (ev_is_active (w)))	1708	if (expect_false (ev_is_active (w)))
…		…
1404		1710
1405	assert (("ev_io_start called with negative fd", fd >= 0));	1711	assert (("ev_io_start called with negative fd", fd >= 0));
1406		1712
1407	ev_start (EV_A_ (W)w, 1);	1713	ev_start (EV_A_ (W)w, 1);
1408	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1714	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1409	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1715	wlist_add (&anfds[fd].head, (WL)w);
1410		1716
1411	fd_change (EV_A_ fd);	1717	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1718	w->events &= ~EV_IOFDSET;
1412	}	1719	}
1413		1720
1414	void	1721	void noinline
1415	ev_io_stop (EV_P_ ev_io *w)	1722	ev_io_stop (EV_P_ ev_io *w)
1416	{	1723	{
1417	ev_clear_pending (EV_A_ (W)w);	1724	clear_pending (EV_A_ (W)w);
1418	if (expect_false (!ev_is_active (w)))	1725	if (expect_false (!ev_is_active (w)))
1419	return;	1726	return;
1420		1727
1421	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1728	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1422		1729
1423	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1730	wlist_del (&anfds[w->fd].head, (WL)w);
1424	ev_stop (EV_A_ (W)w);	1731	ev_stop (EV_A_ (W)w);
1425		1732
1426	fd_change (EV_A_ w->fd);	1733	fd_change (EV_A_ w->fd, 1);
1427	}	1734	}
1428		1735
1429	void	1736	void noinline
1430	ev_timer_start (EV_P_ ev_timer *w)	1737	ev_timer_start (EV_P_ ev_timer *w)
1431	{	1738	{
1432	if (expect_false (ev_is_active (w)))	1739	if (expect_false (ev_is_active (w)))
1433	return;	1740	return;
1434		1741
1435	((WT)w)->at += mn_now;	1742	((WT)w)->at += mn_now;
1436		1743
1437	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1744	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1438		1745
1439	ev_start (EV_A_ (W)w, ++timercnt);	1746	ev_start (EV_A_ (W)w, ++timercnt);
1440	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1747	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1441	timers [timercnt - 1] = w;	1748	timers [timercnt - 1] = (WT)w;
1442	upheap ((WT *)timers, timercnt - 1);	1749	upheap (timers, timercnt - 1);
1443		1750
1444	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1751	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1445	}	1752	}
1446		1753
1447	void	1754	void noinline
1448	ev_timer_stop (EV_P_ ev_timer *w)	1755	ev_timer_stop (EV_P_ ev_timer *w)
1449	{	1756	{
1450	ev_clear_pending (EV_A_ (W)w);	1757	clear_pending (EV_A_ (W)w);
1451	if (expect_false (!ev_is_active (w)))	1758	if (expect_false (!ev_is_active (w)))
1452	return;	1759	return;
1453		1760
1454	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1761	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1455		1762
		1763	{
		1764	int active = ((W)w)->active;
		1765
1456	if (expect_true (((W)w)->active < timercnt--))	1766	if (expect_true (--active < --timercnt))
1457	{	1767	{
1458	timers [((W)w)->active - 1] = timers [timercnt];	1768	timers [active] = timers [timercnt];
1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1769	adjustheap (timers, timercnt, active);
1460	}	1770	}
		1771	}
1461		1772
1462	((WT)w)->at -= mn_now;	1773	((WT)w)->at -= mn_now;
1463		1774
1464	ev_stop (EV_A_ (W)w);	1775	ev_stop (EV_A_ (W)w);
1465	}	1776	}
1466		1777
1467	void	1778	void noinline
1468	ev_timer_again (EV_P_ ev_timer *w)	1779	ev_timer_again (EV_P_ ev_timer *w)
1469	{	1780	{
1470	if (ev_is_active (w))	1781	if (ev_is_active (w))
1471	{	1782	{
1472	if (w->repeat)	1783	if (w->repeat)
1473	{	1784	{
1474	((WT)w)->at = mn_now + w->repeat;	1785	((WT)w)->at = mn_now + w->repeat;
1475	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1786	adjustheap (timers, timercnt, ((W)w)->active - 1);
1476	}	1787	}
1477	else	1788	else
1478	ev_timer_stop (EV_A_ w);	1789	ev_timer_stop (EV_A_ w);
1479	}	1790	}
1480	else if (w->repeat)	1791	else if (w->repeat)
…		…
1482	w->at = w->repeat;	1793	w->at = w->repeat;
1483	ev_timer_start (EV_A_ w);	1794	ev_timer_start (EV_A_ w);
1484	}	1795	}
1485	}	1796	}
1486		1797
1487	#if EV_PERIODICS	1798	#if EV_PERIODIC_ENABLE
1488	void	1799	void noinline
1489	ev_periodic_start (EV_P_ ev_periodic *w)	1800	ev_periodic_start (EV_P_ ev_periodic *w)
1490	{	1801	{
1491	if (expect_false (ev_is_active (w)))	1802	if (expect_false (ev_is_active (w)))
1492	return;	1803	return;
1493		1804
…		…
1495	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1806	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1496	else if (w->interval)	1807	else if (w->interval)
1497	{	1808	{
1498	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1809	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1499	/* this formula differs from the one in periodic_reify because we do not always round up */	1810	/* this formula differs from the one in periodic_reify because we do not always round up */
1500	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1811	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1501	}	1812	}
		1813	else
		1814	((WT)w)->at = w->offset;
1502		1815
1503	ev_start (EV_A_ (W)w, ++periodiccnt);	1816	ev_start (EV_A_ (W)w, ++periodiccnt);
1504	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1817	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1505	periodics [periodiccnt - 1] = w;	1818	periodics [periodiccnt - 1] = (WT)w;
1506	upheap ((WT *)periodics, periodiccnt - 1);	1819	upheap (periodics, periodiccnt - 1);
1507		1820
1508	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1821	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1509	}	1822	}
1510		1823
1511	void	1824	void noinline
1512	ev_periodic_stop (EV_P_ ev_periodic *w)	1825	ev_periodic_stop (EV_P_ ev_periodic *w)
1513	{	1826	{
1514	ev_clear_pending (EV_A_ (W)w);	1827	clear_pending (EV_A_ (W)w);
1515	if (expect_false (!ev_is_active (w)))	1828	if (expect_false (!ev_is_active (w)))
1516	return;	1829	return;
1517		1830
1518	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1831	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1519		1832
		1833	{
		1834	int active = ((W)w)->active;
		1835
1520	if (expect_true (((W)w)->active < periodiccnt--))	1836	if (expect_true (--active < --periodiccnt))
1521	{	1837	{
1522	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1838	periodics [active] = periodics [periodiccnt];
1523	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1839	adjustheap (periodics, periodiccnt, active);
1524	}	1840	}
		1841	}
1525		1842
1526	ev_stop (EV_A_ (W)w);	1843	ev_stop (EV_A_ (W)w);
1527	}	1844	}
1528		1845
1529	void	1846	void noinline
1530	ev_periodic_again (EV_P_ ev_periodic *w)	1847	ev_periodic_again (EV_P_ ev_periodic *w)
1531	{	1848	{
1532	/* TODO: use adjustheap and recalculation */	1849	/* TODO: use adjustheap and recalculation */
1533	ev_periodic_stop (EV_A_ w);	1850	ev_periodic_stop (EV_A_ w);
1534	ev_periodic_start (EV_A_ w);	1851	ev_periodic_start (EV_A_ w);
1535	}	1852	}
1536	#endif	1853	#endif
1537		1854
1538	void
1539	ev_idle_start (EV_P_ ev_idle *w)
1540	{
1541	if (expect_false (ev_is_active (w)))
1542	return;
1543
1544	ev_start (EV_A_ (W)w, ++idlecnt);
1545	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1546	idles [idlecnt - 1] = w;
1547	}
1548
1549	void
1550	ev_idle_stop (EV_P_ ev_idle *w)
1551	{
1552	ev_clear_pending (EV_A_ (W)w);
1553	if (expect_false (!ev_is_active (w)))
1554	return;
1555
1556	idles [((W)w)->active - 1] = idles [--idlecnt];
1557	ev_stop (EV_A_ (W)w);
1558	}
1559
1560	void
1561	ev_prepare_start (EV_P_ ev_prepare *w)
1562	{
1563	if (expect_false (ev_is_active (w)))
1564	return;
1565
1566	ev_start (EV_A_ (W)w, ++preparecnt);
1567	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1568	prepares [preparecnt - 1] = w;
1569	}
1570
1571	void
1572	ev_prepare_stop (EV_P_ ev_prepare *w)
1573	{
1574	ev_clear_pending (EV_A_ (W)w);
1575	if (expect_false (!ev_is_active (w)))
1576	return;
1577
1578	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1579	ev_stop (EV_A_ (W)w);
1580	}
1581
1582	void
1583	ev_check_start (EV_P_ ev_check *w)
1584	{
1585	if (expect_false (ev_is_active (w)))
1586	return;
1587
1588	ev_start (EV_A_ (W)w, ++checkcnt);
1589	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1590	checks [checkcnt - 1] = w;
1591	}
1592
1593	void
1594	ev_check_stop (EV_P_ ev_check *w)
1595	{
1596	ev_clear_pending (EV_A_ (W)w);
1597	if (expect_false (!ev_is_active (w)))
1598	return;
1599
1600	checks [((W)w)->active - 1] = checks [--checkcnt];
1601	ev_stop (EV_A_ (W)w);
1602	}
1603
1604	#ifndef SA_RESTART	1855	#ifndef SA_RESTART
1605	# define SA_RESTART 0	1856	# define SA_RESTART 0
1606	#endif	1857	#endif
1607		1858
1608	void	1859	void noinline
1609	ev_signal_start (EV_P_ ev_signal *w)	1860	ev_signal_start (EV_P_ ev_signal *w)
1610	{	1861	{
1611	#if EV_MULTIPLICITY	1862	#if EV_MULTIPLICITY
1612	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1863	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1613	#endif	1864	#endif
1614	if (expect_false (ev_is_active (w)))	1865	if (expect_false (ev_is_active (w)))
1615	return;	1866	return;
1616		1867
1617	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1868	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1618		1869
		1870	{
		1871	#ifndef _WIN32
		1872	sigset_t full, prev;
		1873	sigfillset (&full);
		1874	sigprocmask (SIG_SETMASK, &full, &prev);
		1875	#endif
		1876
		1877	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1878
		1879	#ifndef _WIN32
		1880	sigprocmask (SIG_SETMASK, &prev, 0);
		1881	#endif
		1882	}
		1883
1619	ev_start (EV_A_ (W)w, 1);	1884	ev_start (EV_A_ (W)w, 1);
1620	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1621	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1885	wlist_add (&signals [w->signum - 1].head, (WL)w);
1622		1886
1623	if (!((WL)w)->next)	1887	if (!((WL)w)->next)
1624	{	1888	{
1625	#if _WIN32	1889	#if _WIN32
1626	signal (w->signum, sighandler);	1890	signal (w->signum, sighandler);
…		…
1632	sigaction (w->signum, &sa, 0);	1896	sigaction (w->signum, &sa, 0);
1633	#endif	1897	#endif
1634	}	1898	}
1635	}	1899	}
1636		1900
1637	void	1901	void noinline
1638	ev_signal_stop (EV_P_ ev_signal *w)	1902	ev_signal_stop (EV_P_ ev_signal *w)
1639	{	1903	{
1640	ev_clear_pending (EV_A_ (W)w);	1904	clear_pending (EV_A_ (W)w);
1641	if (expect_false (!ev_is_active (w)))	1905	if (expect_false (!ev_is_active (w)))
1642	return;	1906	return;
1643		1907
1644	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1908	wlist_del (&signals [w->signum - 1].head, (WL)w);
1645	ev_stop (EV_A_ (W)w);	1909	ev_stop (EV_A_ (W)w);
1646		1910
1647	if (!signals [w->signum - 1].head)	1911	if (!signals [w->signum - 1].head)
1648	signal (w->signum, SIG_DFL);	1912	signal (w->signum, SIG_DFL);
1649	}	1913	}
…		…
1656	#endif	1920	#endif
1657	if (expect_false (ev_is_active (w)))	1921	if (expect_false (ev_is_active (w)))
1658	return;	1922	return;
1659		1923
1660	ev_start (EV_A_ (W)w, 1);	1924	ev_start (EV_A_ (W)w, 1);
1661	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1925	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1662	}	1926	}
1663		1927
1664	void	1928	void
1665	ev_child_stop (EV_P_ ev_child *w)	1929	ev_child_stop (EV_P_ ev_child *w)
1666	{	1930	{
1667	ev_clear_pending (EV_A_ (W)w);	1931	clear_pending (EV_A_ (W)w);
1668	if (expect_false (!ev_is_active (w)))	1932	if (expect_false (!ev_is_active (w)))
1669	return;	1933	return;
1670		1934
1671	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1935	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1672	ev_stop (EV_A_ (W)w);	1936	ev_stop (EV_A_ (W)w);
1673	}	1937	}
1674		1938
1675	#if EV_MULTIPLICITY	1939	#if EV_STAT_ENABLE
1676	void	1940
1677	ev_embed_loop (EV_P_ ev_embed *w)	1941	# ifdef _WIN32
		1942	# undef lstat
		1943	# define lstat(a,b) _stati64 (a,b)
		1944	# endif
		1945
		1946	#define DEF_STAT_INTERVAL 5.0074891
		1947	#define MIN_STAT_INTERVAL 0.1074891
		1948
		1949	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1950
		1951	#if EV_USE_INOTIFY
		1952	# define EV_INOTIFY_BUFSIZE 8192
		1953
		1954	static void noinline
		1955	infy_add (EV_P_ ev_stat *w)
1678	{	1956	{
1679	ev_loop (w->loop, EVLOOP_NONBLOCK);	1957	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);
		1958
		1959	if (w->wd < 0)
		1960	{
		1961	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		1962
		1963	/* monitor some parent directory for speedup hints */
		1964	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		1965	{
		1966	char path [4096];
		1967	strcpy (path, w->path);
		1968
		1969	do
		1970	{
		1971	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		1972	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		1973
		1974	char *pend = strrchr (path, '/');
		1975
		1976	if (!pend)
		1977	break; /* whoops, no '/', complain to your admin */
		1978
		1979	*pend = 0;
		1980	w->wd = inotify_add_watch (fs_fd, path, mask);
		1981	}
		1982	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		1983	}
		1984	}
		1985	else
		1986	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		1987
		1988	if (w->wd >= 0)
		1989	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		1990	}
		1991
		1992	static void noinline
		1993	infy_del (EV_P_ ev_stat *w)
		1994	{
		1995	int slot;
		1996	int wd = w->wd;
		1997
		1998	if (wd < 0)
		1999	return;
		2000
		2001	w->wd = -2;
		2002	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		2003	wlist_del (&fs_hash [slot].head, (WL)w);
		2004
		2005	/* remove this watcher, if others are watching it, they will rearm */
		2006	inotify_rm_watch (fs_fd, wd);
		2007	}
		2008
		2009	static void noinline
		2010	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2011	{
		2012	if (slot < 0)
		2013	/* overflow, need to check for all hahs slots */
		2014	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2015	infy_wd (EV_A_ slot, wd, ev);
		2016	else
		2017	{
		2018	WL w_;
		2019
		2020	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2021	{
		2022	ev_stat *w = (ev_stat *)w_;
		2023	w_ = w_->next; /* lets us remove this watcher and all before it */
		2024
		2025	if (w->wd == wd || wd == -1)
		2026	{
		2027	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2028	{
		2029	w->wd = -1;
		2030	infy_add (EV_A_ w); /* re-add, no matter what */
		2031	}
		2032
		2033	stat_timer_cb (EV_A_ &w->timer, 0);
		2034	}
		2035	}
		2036	}
1680	}	2037	}
1681		2038
1682	static void	2039	static void
		2040	infy_cb (EV_P_ ev_io *w, int revents)
		2041	{
		2042	char buf [EV_INOTIFY_BUFSIZE];
		2043	struct inotify_event *ev = (struct inotify_event *)buf;
		2044	int ofs;
		2045	int len = read (fs_fd, buf, sizeof (buf));
		2046
		2047	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2048	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2049	}
		2050
		2051	void inline_size
		2052	infy_init (EV_P)
		2053	{
		2054	if (fs_fd != -2)
		2055	return;
		2056
		2057	fs_fd = inotify_init ();
		2058
		2059	if (fs_fd >= 0)
		2060	{
		2061	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2062	ev_set_priority (&fs_w, EV_MAXPRI);
		2063	ev_io_start (EV_A_ &fs_w);
		2064	}
		2065	}
		2066
		2067	void inline_size
		2068	infy_fork (EV_P)
		2069	{
		2070	int slot;
		2071
		2072	if (fs_fd < 0)
		2073	return;
		2074
		2075	close (fs_fd);
		2076	fs_fd = inotify_init ();
		2077
		2078	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2079	{
		2080	WL w_ = fs_hash [slot].head;
		2081	fs_hash [slot].head = 0;
		2082
		2083	while (w_)
		2084	{
		2085	ev_stat *w = (ev_stat *)w_;
		2086	w_ = w_->next; /* lets us add this watcher */
		2087
		2088	w->wd = -1;
		2089
		2090	if (fs_fd >= 0)
		2091	infy_add (EV_A_ w); /* re-add, no matter what */
		2092	else
		2093	ev_timer_start (EV_A_ &w->timer);
		2094	}
		2095
		2096	}
		2097	}
		2098
		2099	#endif
		2100
		2101	void
		2102	ev_stat_stat (EV_P_ ev_stat *w)
		2103	{
		2104	if (lstat (w->path, &w->attr) < 0)
		2105	w->attr.st_nlink = 0;
		2106	else if (!w->attr.st_nlink)
		2107	w->attr.st_nlink = 1;
		2108	}
		2109
		2110	static void noinline
		2111	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
		2112	{
		2113	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
		2114
		2115	/* we copy this here each the time so that */
		2116	/* prev has the old value when the callback gets invoked */
		2117	w->prev = w->attr;
		2118	ev_stat_stat (EV_A_ w);
		2119
		2120	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2121	if (
		2122	w->prev.st_dev != w->attr.st_dev
		2123	|| w->prev.st_ino != w->attr.st_ino
		2124	|| w->prev.st_mode != w->attr.st_mode
		2125	|| w->prev.st_nlink != w->attr.st_nlink
		2126	|| w->prev.st_uid != w->attr.st_uid
		2127	|| w->prev.st_gid != w->attr.st_gid
		2128	|| w->prev.st_rdev != w->attr.st_rdev
		2129	|| w->prev.st_size != w->attr.st_size
		2130	|| w->prev.st_atime != w->attr.st_atime
		2131	|| w->prev.st_mtime != w->attr.st_mtime
		2132	|| w->prev.st_ctime != w->attr.st_ctime
		2133	) {
		2134	#if EV_USE_INOTIFY
		2135	infy_del (EV_A_ w);
		2136	infy_add (EV_A_ w);
		2137	ev_stat_stat (EV_A_ w); /* avoid race... */
		2138	#endif
		2139
		2140	ev_feed_event (EV_A_ w, EV_STAT);
		2141	}
		2142	}
		2143
		2144	void
		2145	ev_stat_start (EV_P_ ev_stat *w)
		2146	{
		2147	if (expect_false (ev_is_active (w)))
		2148	return;
		2149
		2150	/* since we use memcmp, we need to clear any padding data etc. */
		2151	memset (&w->prev, 0, sizeof (ev_statdata));
		2152	memset (&w->attr, 0, sizeof (ev_statdata));
		2153
		2154	ev_stat_stat (EV_A_ w);
		2155
		2156	if (w->interval < MIN_STAT_INTERVAL)
		2157	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
		2158
		2159	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
		2160	ev_set_priority (&w->timer, ev_priority (w));
		2161
		2162	#if EV_USE_INOTIFY
		2163	infy_init (EV_A);
		2164
		2165	if (fs_fd >= 0)
		2166	infy_add (EV_A_ w);
		2167	else
		2168	#endif
		2169	ev_timer_start (EV_A_ &w->timer);
		2170
		2171	ev_start (EV_A_ (W)w, 1);
		2172	}
		2173
		2174	void
		2175	ev_stat_stop (EV_P_ ev_stat *w)
		2176	{
		2177	clear_pending (EV_A_ (W)w);
		2178	if (expect_false (!ev_is_active (w)))
		2179	return;
		2180
		2181	#if EV_USE_INOTIFY
		2182	infy_del (EV_A_ w);
		2183	#endif
		2184	ev_timer_stop (EV_A_ &w->timer);
		2185
		2186	ev_stop (EV_A_ (W)w);
		2187	}
		2188	#endif
		2189
		2190	#if EV_IDLE_ENABLE
		2191	void
		2192	ev_idle_start (EV_P_ ev_idle *w)
		2193	{
		2194	if (expect_false (ev_is_active (w)))
		2195	return;
		2196
		2197	pri_adjust (EV_A_ (W)w);
		2198
		2199	{
		2200	int active = ++idlecnt [ABSPRI (w)];
		2201
		2202	++idleall;
		2203	ev_start (EV_A_ (W)w, active);
		2204
		2205	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
		2206	idles [ABSPRI (w)][active - 1] = w;
		2207	}
		2208	}
		2209
		2210	void
		2211	ev_idle_stop (EV_P_ ev_idle *w)
		2212	{
		2213	clear_pending (EV_A_ (W)w);
		2214	if (expect_false (!ev_is_active (w)))
		2215	return;
		2216
		2217	{
		2218	int active = ((W)w)->active;
		2219
		2220	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
		2221	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2222
		2223	ev_stop (EV_A_ (W)w);
		2224	--idleall;
		2225	}
		2226	}
		2227	#endif
		2228
		2229	void
		2230	ev_prepare_start (EV_P_ ev_prepare *w)
		2231	{
		2232	if (expect_false (ev_is_active (w)))
		2233	return;
		2234
		2235	ev_start (EV_A_ (W)w, ++preparecnt);
		2236	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		2237	prepares [preparecnt - 1] = w;
		2238	}
		2239
		2240	void
		2241	ev_prepare_stop (EV_P_ ev_prepare *w)
		2242	{
		2243	clear_pending (EV_A_ (W)w);
		2244	if (expect_false (!ev_is_active (w)))
		2245	return;
		2246
		2247	{
		2248	int active = ((W)w)->active;
		2249	prepares [active - 1] = prepares [--preparecnt];
		2250	((W)prepares [active - 1])->active = active;
		2251	}
		2252
		2253	ev_stop (EV_A_ (W)w);
		2254	}
		2255
		2256	void
		2257	ev_check_start (EV_P_ ev_check *w)
		2258	{
		2259	if (expect_false (ev_is_active (w)))
		2260	return;
		2261
		2262	ev_start (EV_A_ (W)w, ++checkcnt);
		2263	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
		2264	checks [checkcnt - 1] = w;
		2265	}
		2266
		2267	void
		2268	ev_check_stop (EV_P_ ev_check *w)
		2269	{
		2270	clear_pending (EV_A_ (W)w);
		2271	if (expect_false (!ev_is_active (w)))
		2272	return;
		2273
		2274	{
		2275	int active = ((W)w)->active;
		2276	checks [active - 1] = checks [--checkcnt];
		2277	((W)checks [active - 1])->active = active;
		2278	}
		2279
		2280	ev_stop (EV_A_ (W)w);
		2281	}
		2282
		2283	#if EV_EMBED_ENABLE
		2284	void noinline
		2285	ev_embed_sweep (EV_P_ ev_embed *w)
		2286	{
		2287	ev_loop (w->other, EVLOOP_NONBLOCK);
		2288	}
		2289
		2290	static void
1683	embed_cb (EV_P_ ev_io *io, int revents)	2291	embed_io_cb (EV_P_ ev_io *io, int revents)
1684	{	2292	{
1685	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2293	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1686		2294
1687	if (ev_cb (w))	2295	if (ev_cb (w))
1688	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2296	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1689	else	2297	else
1690	ev_embed_loop (loop, w);	2298	ev_loop (w->other, EVLOOP_NONBLOCK);
1691	}	2299	}
		2300
		2301	static void
		2302	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2303	{
		2304	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2305
		2306	{
		2307	struct ev_loop *loop = w->other;
		2308
		2309	while (fdchangecnt)
		2310	{
		2311	fd_reify (EV_A);
		2312	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2313	}
		2314	}
		2315	}
		2316
		2317	#if 0
		2318	static void
		2319	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2320	{
		2321	ev_idle_stop (EV_A_ idle);
		2322	}
		2323	#endif
1692		2324
1693	void	2325	void
1694	ev_embed_start (EV_P_ ev_embed *w)	2326	ev_embed_start (EV_P_ ev_embed *w)
1695	{	2327	{
1696	if (expect_false (ev_is_active (w)))	2328	if (expect_false (ev_is_active (w)))
1697	return;	2329	return;
1698		2330
1699	{	2331	{
1700	struct ev_loop *loop = w->loop;	2332	struct ev_loop *loop = w->other;
1701	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2333	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1702	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2334	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1703	}	2335	}
1704		2336
1705	ev_set_priority (&w->io, ev_priority (w));	2337	ev_set_priority (&w->io, ev_priority (w));
1706	ev_io_start (EV_A_ &w->io);	2338	ev_io_start (EV_A_ &w->io);
		2339
		2340	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2341	ev_set_priority (&w->prepare, EV_MINPRI);
		2342	ev_prepare_start (EV_A_ &w->prepare);
		2343
		2344	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2345
1707	ev_start (EV_A_ (W)w, 1);	2346	ev_start (EV_A_ (W)w, 1);
1708	}	2347	}
1709		2348
1710	void	2349	void
1711	ev_embed_stop (EV_P_ ev_embed *w)	2350	ev_embed_stop (EV_P_ ev_embed *w)
1712	{	2351	{
1713	ev_clear_pending (EV_A_ (W)w);	2352	clear_pending (EV_A_ (W)w);
1714	if (expect_false (!ev_is_active (w)))	2353	if (expect_false (!ev_is_active (w)))
1715	return;	2354	return;
1716		2355
1717	ev_io_stop (EV_A_ &w->io);	2356	ev_io_stop (EV_A_ &w->io);
		2357	ev_prepare_stop (EV_A_ &w->prepare);
		2358
		2359	ev_stop (EV_A_ (W)w);
		2360	}
		2361	#endif
		2362
		2363	#if EV_FORK_ENABLE
		2364	void
		2365	ev_fork_start (EV_P_ ev_fork *w)
		2366	{
		2367	if (expect_false (ev_is_active (w)))
		2368	return;
		2369
		2370	ev_start (EV_A_ (W)w, ++forkcnt);
		2371	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
		2372	forks [forkcnt - 1] = w;
		2373	}
		2374
		2375	void
		2376	ev_fork_stop (EV_P_ ev_fork *w)
		2377	{
		2378	clear_pending (EV_A_ (W)w);
		2379	if (expect_false (!ev_is_active (w)))
		2380	return;
		2381
		2382	{
		2383	int active = ((W)w)->active;
		2384	forks [active - 1] = forks [--forkcnt];
		2385	((W)forks [active - 1])->active = active;
		2386	}
		2387
1718	ev_stop (EV_A_ (W)w);	2388	ev_stop (EV_A_ (W)w);
1719	}	2389	}
1720	#endif	2390	#endif
1721		2391
1722	/*****************************************************************************/	2392	/*****************************************************************************/
…		…
1781	ev_timer_set (&once->to, timeout, 0.);	2451	ev_timer_set (&once->to, timeout, 0.);
1782	ev_timer_start (EV_A_ &once->to);	2452	ev_timer_start (EV_A_ &once->to);
1783	}	2453	}
1784	}	2454	}
1785		2455
		2456	#if EV_MULTIPLICITY
		2457	#include "ev_wrap.h"
		2458	#endif
		2459
1786	#ifdef __cplusplus	2460	#ifdef __cplusplus
1787	}	2461	}
1788	#endif	2462	#endif
1789		2463

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