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Comparing libev/ev.c (file contents):
Revision 1.150 by root, Tue Nov 27 19:41:52 2007 UTC vs.
Revision 1.219 by root, Wed Apr 2 10:55:39 2008 UTC

1	/*	1	/*
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) 2007,2008 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>
…		…
109	#include <errno.h>	133	#include <errno.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>
		138
		139	#ifdef EV_H
		140	# include EV_H
		141	#else
		142	# include "ev.h"
		143	#endif
114		144
115	#ifndef _WIN32	145	#ifndef _WIN32
116	# include <sys/time.h>	146	# include <sys/time.h>
117	# include <sys/wait.h>	147	# include <sys/wait.h>
118	# include <unistd.h>	148	# include <unistd.h>
…		…
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
161	#ifndef EV_PID_HASHSIZE	199	#ifndef EV_PID_HASHSIZE
162	# if EV_MINIMAL	200	# if EV_MINIMAL
163	# define EV_PID_HASHSIZE 1	201	# define EV_PID_HASHSIZE 1
164	# else	202	# else
165	# define EV_PID_HASHSIZE 16	203	# define EV_PID_HASHSIZE 16
166	# endif	204	# endif
167	#endif	205	#endif
168		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
169	/**/	215	/**/
170		216
171	#ifndef CLOCK_MONOTONIC	217	#ifndef CLOCK_MONOTONIC
172	# undef EV_USE_MONOTONIC	218	# undef EV_USE_MONOTONIC
173	# define EV_USE_MONOTONIC 0	219	# define EV_USE_MONOTONIC 0
…		…
176	#ifndef CLOCK_REALTIME	222	#ifndef CLOCK_REALTIME
177	# undef EV_USE_REALTIME	223	# undef EV_USE_REALTIME
178	# define EV_USE_REALTIME 0	224	# define EV_USE_REALTIME 0
179	#endif	225	#endif
180		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
181	#if EV_SELECT_IS_WINSOCKET	242	#if EV_SELECT_IS_WINSOCKET
182	# include <winsock.h>	243	# include <winsock.h>
183	#endif	244	#endif
184		245
185	/**/	246	/**/
186		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
187	#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) */
188	#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) */
189	/*#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 */
190		261
191	#ifdef EV_H
192	# include EV_H
193	#else
194	# include "ev.h"
195	#endif
196
197	#if __GNUC__ >= 3	262	#if __GNUC__ >= 4
198	# define expect(expr,value) __builtin_expect ((expr),(value))	263	# define expect(expr,value) __builtin_expect ((expr),(value))
199	# define inline_size static inline /* inline for codesize */
200	# if EV_MINIMAL
201	# define noinline __attribute__ ((noinline))	264	# define noinline __attribute__ ((noinline))
202	# define inline_speed static noinline
203	# else
204	# define noinline
205	# define inline_speed static inline
206	# endif
207	#else	265	#else
208	# define expect(expr,value) (expr)	266	# define expect(expr,value) (expr)
209	# define inline_speed static
210	# define inline_size static
211	# define noinline	267	# define noinline
		268	# if __STDC_VERSION__ < 199901L
		269	# define inline
		270	# endif
212	#endif	271	#endif
213		272
214	#define expect_false(expr) expect ((expr) != 0, 0)	273	#define expect_false(expr) expect ((expr) != 0, 0)
215	#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
216		282
217	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	283	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
218	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	284	#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
219		285
220	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */	286	#define EMPTY /* required for microsofts broken pseudo-c compiler */
221	#define EMPTY2(a,b) /* used to suppress some warnings */	287	#define EMPTY2(a,b) /* used to suppress some warnings */
222		288
223	typedef ev_watcher *W;	289	typedef ev_watcher *W;
224	typedef ev_watcher_list *WL;	290	typedef ev_watcher_list *WL;
225	typedef ev_watcher_time *WT;	291	typedef ev_watcher_time *WT;
226		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 */
227	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	296	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		297	#endif
228		298
229	#ifdef _WIN32	299	#ifdef _WIN32
230	# include "ev_win32.c"	300	# include "ev_win32.c"
231	#endif	301	#endif
232		302
…		…
253	perror (msg);	323	perror (msg);
254	abort ();	324	abort ();
255	}	325	}
256	}	326	}
257		327
258	static void *(*alloc)(void *ptr, size_t size) = realloc;	328	static void *(*alloc)(void *ptr, long size);
259		329
260	void	330	void
261	ev_set_allocator (void *(*cb)(void *ptr, size_t size))	331	ev_set_allocator (void *(*cb)(void *ptr, long size))
262	{	332	{
263	alloc = cb;	333	alloc = cb;
264	}	334	}
265		335
266	inline_speed void *	336	inline_speed void *
267	ev_realloc (void *ptr, size_t size)	337	ev_realloc (void *ptr, long size)
268	{	338	{
269	ptr = alloc (ptr, size);	339	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
270		340
271	if (!ptr && size)	341	if (!ptr && size)
272	{	342	{
273	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size);	343	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
274	abort ();	344	abort ();
275	}	345	}
276		346
277	return ptr;	347	return ptr;
278	}	348	}
…		…
295	typedef struct	365	typedef struct
296	{	366	{
297	W w;	367	W w;
298	int events;	368	int events;
299	} ANPENDING;	369	} ANPENDING;
		370
		371	#if EV_USE_INOTIFY
		372	typedef struct
		373	{
		374	WL head;
		375	} ANFS;
		376	#endif
300		377
301	#if EV_MULTIPLICITY	378	#if EV_MULTIPLICITY
302		379
303	struct ev_loop	380	struct ev_loop
304	{	381	{
…		…
361	{	438	{
362	return ev_rt_now;	439	return ev_rt_now;
363	}	440	}
364	#endif	441	#endif
365		442
366	#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 ((unsigned long)(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	}
367		497
368	#define array_needsize(type,base,cur,cnt,init) \	498	#define array_needsize(type,base,cur,cnt,init) \
369	if (expect_false ((cnt) > cur)) \	499	if (expect_false ((cnt) > (cur))) \
370	{ \	500	{ \
371	int newcnt = cur; \	501	int ocur_ = (cur); \
372	do \	502	(base) = (type *)array_realloc \
373	{ \	503	(sizeof (type), (base), &(cur), (cnt)); \
374	newcnt = array_roundsize (type, newcnt << 1); \	504	init ((base) + (ocur_), (cur) - ocur_); \
375	} \
376	while ((cnt) > newcnt); \
377	\
378	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
379	init (base + cur, newcnt - cur); \
380	cur = newcnt; \
381	}	505	}
382		506
		507	#if 0
383	#define array_slim(type,stem) \	508	#define array_slim(type,stem) \
384	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	509	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
385	{ \	510	{ \
386	stem ## max = array_roundsize (stem ## cnt >> 1); \	511	stem ## max = array_roundsize (stem ## cnt >> 1); \
387	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	512	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
388	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	513	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
389	}	514	}
		515	#endif
390		516
391	#define array_free(stem, idx) \	517	#define array_free(stem, idx) \
392	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;
393		519
394	/*****************************************************************************/	520	/*****************************************************************************/
395		521
396	void noinline	522	void noinline
397	ev_feed_event (EV_P_ void *w, int revents)	523	ev_feed_event (EV_P_ void *w, int revents)
398	{	524	{
399	W w_ = (W)w;	525	W w_ = (W)w;
		526	int pri = ABSPRI (w_);
400		527
401	if (expect_false (w_->pending))	528	if (expect_false (w_->pending))
		529	pendings [pri][w_->pending - 1].events |= revents;
		530	else
402	{	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_;
403	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	535	pendings [pri][w_->pending - 1].events = revents;
404	return;
405	}	536	}
406
407	w_->pending = ++pendingcnt [ABSPRI (w_)];
408	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
409	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
410	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
411	}	537	}
412		538
413	void inline_size	539	void inline_speed
414	queue_events (EV_P_ W *events, int eventcnt, int type)	540	queue_events (EV_P_ W *events, int eventcnt, int type)
415	{	541	{
416	int i;	542	int i;
417		543
418	for (i = 0; i < eventcnt; ++i)	544	for (i = 0; i < eventcnt; ++i)
…		…
450	}	576	}
451		577
452	void	578	void
453	ev_feed_fd_event (EV_P_ int fd, int revents)	579	ev_feed_fd_event (EV_P_ int fd, int revents)
454	{	580	{
		581	if (fd >= 0 && fd < anfdmax)
455	fd_event (EV_A_ fd, revents);	582	fd_event (EV_A_ fd, revents);
456	}	583	}
457		584
458	void inline_size	585	void inline_size
459	fd_reify (EV_P)	586	fd_reify (EV_P)
460	{	587	{
…		…
464	{	591	{
465	int fd = fdchanges [i];	592	int fd = fdchanges [i];
466	ANFD *anfd = anfds + fd;	593	ANFD *anfd = anfds + fd;
467	ev_io *w;	594	ev_io *w;
468		595
469	int events = 0;	596	unsigned char events = 0;
470		597
471	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)
472	events |= w->events;	599	events |= (unsigned char)w->events;
473		600
474	#if EV_SELECT_IS_WINSOCKET	601	#if EV_SELECT_IS_WINSOCKET
475	if (events)	602	if (events)
476	{	603	{
477	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
478	anfd->handle = _get_osfhandle (fd);	608	anfd->handle = _get_osfhandle (fd);
		609	#endif
479	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));
480	}	611	}
481	#endif	612	#endif
482		613
		614	{
		615	unsigned char o_events = anfd->events;
		616	unsigned char o_reify = anfd->reify;
		617
483	anfd->reify = 0;	618	anfd->reify = 0;
484
485	backend_modify (EV_A_ fd, anfd->events, events);
486	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	}
487	}	624	}
488		625
489	fdchangecnt = 0;	626	fdchangecnt = 0;
490	}	627	}
491		628
492	void inline_size	629	void inline_size
493	fd_change (EV_P_ int fd)	630	fd_change (EV_P_ int fd, int flags)
494	{	631	{
495	if (expect_false (anfds [fd].reify))	632	unsigned char reify = anfds [fd].reify;
496	return;
497
498	anfds [fd].reify = 1;	633	anfds [fd].reify |= flags;
499		634
		635	if (expect_true (!reify))
		636	{
500	++fdchangecnt;	637	++fdchangecnt;
501	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	638	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
502	fdchanges [fdchangecnt - 1] = fd;	639	fdchanges [fdchangecnt - 1] = fd;
		640	}
503	}	641	}
504		642
505	void inline_speed	643	void inline_speed
506	fd_kill (EV_P_ int fd)	644	fd_kill (EV_P_ int fd)
507	{	645	{
…		…
554	static void noinline	692	static void noinline
555	fd_rearm_all (EV_P)	693	fd_rearm_all (EV_P)
556	{	694	{
557	int fd;	695	int fd;
558		696
559	/* this should be highly optimised to not do anything but set a flag */
560	for (fd = 0; fd < anfdmax; ++fd)	697	for (fd = 0; fd < anfdmax; ++fd)
561	if (anfds [fd].events)	698	if (anfds [fd].events)
562	{	699	{
563	anfds [fd].events = 0;	700	anfds [fd].events = 0;
564	fd_change (EV_A_ fd);	701	fd_change (EV_A_ fd, EV_IOFDSET | 1);
565	}	702	}
566	}	703	}
567		704
568	/*****************************************************************************/	705	/*****************************************************************************/
569		706
570	void inline_speed	707	void inline_speed
571	upheap (WT *heap, int k)	708	upheap (WT *heap, int k)
572	{	709	{
573	WT w = heap [k];	710	WT w = heap [k];
574		711
575	while (k && heap [k >> 1]->at > w->at)	712	while (k)
576	{	713	{
		714	int p = (k - 1) >> 1;
		715
		716	if (heap [p]->at <= w->at)
		717	break;
		718
577	heap [k] = heap [k >> 1];	719	heap [k] = heap [p];
578	((W)heap [k])->active = k + 1;	720	((W)heap [k])->active = k + 1;
579	k >>= 1;	721	k = p;
580	}	722	}
581		723
582	heap [k] = w;	724	heap [k] = w;
583	((W)heap [k])->active = k + 1;	725	((W)heap [k])->active = k + 1;
584
585	}	726	}
586		727
587	void inline_speed	728	void inline_speed
588	downheap (WT *heap, int N, int k)	729	downheap (WT *heap, int N, int k)
589	{	730	{
590	WT w = heap [k];	731	WT w = heap [k];
591		732
592	while (k < (N >> 1))	733	for (;;)
593	{	734	{
594	int j = k << 1;	735	int c = (k << 1) + 1;
595		736
596	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)	737	if (c >= N)
597	++j;
598
599	if (w->at <= heap [j]->at)
600	break;	738	break;
601		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
602	heap [k] = heap [j];	746	heap [k] = heap [c];
603	((W)heap [k])->active = k + 1;	747	((W)heap [k])->active = k + 1;
		748
604	k = j;	749	k = c;
605	}	750	}
606		751
607	heap [k] = w;	752	heap [k] = w;
608	((W)heap [k])->active = k + 1;	753	((W)heap [k])->active = k + 1;
609	}	754	}
…		…
618	/*****************************************************************************/	763	/*****************************************************************************/
619		764
620	typedef struct	765	typedef struct
621	{	766	{
622	WL head;	767	WL head;
623	sig_atomic_t volatile gotsig;	768	EV_ATOMIC_T gotsig;
624	} ANSIG;	769	} ANSIG;
625		770
626	static ANSIG *signals;	771	static ANSIG *signals;
627	static int signalmax;	772	static int signalmax;
628		773
629	static int sigpipe [2];	774	static EV_ATOMIC_T gotsig;
630	static sig_atomic_t volatile gotsig;
631	static ev_io sigev;
632		775
633	void inline_size	776	void inline_size
634	signals_init (ANSIG *base, int count)	777	signals_init (ANSIG *base, int count)
635	{	778	{
636	while (count--)	779	while (count--)
…		…
640		783
641	++base;	784	++base;
642	}	785	}
643	}	786	}
644		787
645	static void	788	/*****************************************************************************/
646	sighandler (int signum)
647	{
648	#if _WIN32
649	signal (signum, sighandler);
650	#endif
651		789
652	signals [signum - 1].gotsig = 1;
653
654	if (!gotsig)
655	{
656	int old_errno = errno;
657	gotsig = 1;
658	write (sigpipe [1], &signum, 1);
659	errno = old_errno;
660	}
661	}
662
663	void noinline
664	ev_feed_signal_event (EV_P_ int signum)
665	{
666	WL w;
667
668	#if EV_MULTIPLICITY
669	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
670	#endif
671
672	--signum;
673
674	if (signum < 0 || signum >= signalmax)
675	return;
676
677	signals [signum].gotsig = 0;
678
679	for (w = signals [signum].head; w; w = w->next)
680	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
681	}
682
683	static void
684	sigcb (EV_P_ ev_io *iow, int revents)
685	{
686	int signum;
687
688	read (sigpipe [0], &revents, 1);
689	gotsig = 0;
690
691	for (signum = signalmax; signum--; )
692	if (signals [signum].gotsig)
693	ev_feed_signal_event (EV_A_ signum + 1);
694	}
695
696	void inline_size	790	void inline_speed
697	fd_intern (int fd)	791	fd_intern (int fd)
698	{	792	{
699	#ifdef _WIN32	793	#ifdef _WIN32
700	int arg = 1;	794	int arg = 1;
701	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	795	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
…		…
704	fcntl (fd, F_SETFL, O_NONBLOCK);	798	fcntl (fd, F_SETFL, O_NONBLOCK);
705	#endif	799	#endif
706	}	800	}
707		801
708	static void noinline	802	static void noinline
709	siginit (EV_P)	803	evpipe_init (EV_P)
710	{	804	{
		805	if (!ev_is_active (&pipeev))
		806	{
		807	while (pipe (evpipe))
		808	syserr ("(libev) error creating signal/async pipe");
		809
711	fd_intern (sigpipe [0]);	810	fd_intern (evpipe [0]);
712	fd_intern (sigpipe [1]);	811	fd_intern (evpipe [1]);
713		812
714	ev_io_set (&sigev, sigpipe [0], EV_READ);	813	ev_io_set (&pipeev, evpipe [0], EV_READ);
715	ev_io_start (EV_A_ &sigev);	814	ev_io_start (EV_A_ &pipeev);
716	ev_unref (EV_A); /* child watcher should not keep loop alive */	815	ev_unref (EV_A); /* watcher should not keep loop alive */
		816	}
		817	}
		818
		819	void inline_size
		820	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		821	{
		822	if (!*flag)
		823	{
		824	int old_errno = errno; /* save errno because write might clobber it */
		825
		826	*flag = 1;
		827	write (evpipe [1], &old_errno, 1);
		828
		829	errno = old_errno;
		830	}
		831	}
		832
		833	static void
		834	pipecb (EV_P_ ev_io *iow, int revents)
		835	{
		836	{
		837	int dummy;
		838	read (evpipe [0], &dummy, 1);
		839	}
		840
		841	if (gotsig && ev_is_default_loop (EV_A))
		842	{
		843	int signum;
		844	gotsig = 0;
		845
		846	for (signum = signalmax; signum--; )
		847	if (signals [signum].gotsig)
		848	ev_feed_signal_event (EV_A_ signum + 1);
		849	}
		850
		851	#if EV_ASYNC_ENABLE
		852	if (gotasync)
		853	{
		854	int i;
		855	gotasync = 0;
		856
		857	for (i = asynccnt; i--; )
		858	if (asyncs [i]->sent)
		859	{
		860	asyncs [i]->sent = 0;
		861	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		862	}
		863	}
		864	#endif
717	}	865	}
718		866
719	/*****************************************************************************/	867	/*****************************************************************************/
720		868
		869	static void
		870	ev_sighandler (int signum)
		871	{
		872	#if EV_MULTIPLICITY
		873	struct ev_loop *loop = &default_loop_struct;
		874	#endif
		875
		876	#if _WIN32
		877	signal (signum, ev_sighandler);
		878	#endif
		879
		880	signals [signum - 1].gotsig = 1;
		881	evpipe_write (EV_A_ &gotsig);
		882	}
		883
		884	void noinline
		885	ev_feed_signal_event (EV_P_ int signum)
		886	{
		887	WL w;
		888
		889	#if EV_MULTIPLICITY
		890	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		891	#endif
		892
		893	--signum;
		894
		895	if (signum < 0 || signum >= signalmax)
		896	return;
		897
		898	signals [signum].gotsig = 0;
		899
		900	for (w = signals [signum].head; w; w = w->next)
		901	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		902	}
		903
		904	/*****************************************************************************/
		905
721	static ev_child *childs [EV_PID_HASHSIZE];	906	static WL childs [EV_PID_HASHSIZE];
722		907
723	#ifndef _WIN32	908	#ifndef _WIN32
724		909
725	static ev_signal childev;	910	static ev_signal childev;
726		911
		912	#ifndef WIFCONTINUED
		913	# define WIFCONTINUED(status) 0
		914	#endif
		915
727	void inline_speed	916	void inline_speed
728	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	917	child_reap (EV_P_ int chain, int pid, int status)
729	{	918	{
730	ev_child *w;	919	ev_child *w;
		920	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
731		921
732	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	922	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		923	{
733	if (w->pid == pid || !w->pid)	924	if ((w->pid == pid || !w->pid)
		925	&& (!traced || (w->flags & 1)))
734	{	926	{
735	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	927	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
736	w->rpid = pid;	928	w->rpid = pid;
737	w->rstatus = status;	929	w->rstatus = status;
738	ev_feed_event (EV_A_ (W)w, EV_CHILD);	930	ev_feed_event (EV_A_ (W)w, EV_CHILD);
739	}	931	}
		932	}
740	}	933	}
741		934
742	#ifndef WCONTINUED	935	#ifndef WCONTINUED
743	# define WCONTINUED 0	936	# define WCONTINUED 0
744	#endif	937	#endif
…		…
753	if (!WCONTINUED	946	if (!WCONTINUED
754	|| errno != EINVAL	947	|| errno != EINVAL
755	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	948	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
756	return;	949	return;
757		950
758	/* make sure we are called again until all childs have been reaped */	951	/* make sure we are called again until all children have been reaped */
759	/* we need to do it this way so that the callback gets called before we continue */	952	/* we need to do it this way so that the callback gets called before we continue */
760	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	953	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
761		954
762	child_reap (EV_A_ sw, pid, pid, status);	955	child_reap (EV_A_ pid, pid, status);
763	if (EV_PID_HASHSIZE > 1)	956	if (EV_PID_HASHSIZE > 1)
764	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	957	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
765	}	958	}
766		959
767	#endif	960	#endif
768		961
769	/*****************************************************************************/	962	/*****************************************************************************/
…		…
841	}	1034	}
842		1035
843	unsigned int	1036	unsigned int
844	ev_embeddable_backends (void)	1037	ev_embeddable_backends (void)
845	{	1038	{
846	return EVBACKEND_EPOLL	1039	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
847	| EVBACKEND_KQUEUE	1040
848	| EVBACKEND_PORT;	1041	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1042	/* please fix it and tell me how to detect the fix */
		1043	flags &= ~EVBACKEND_EPOLL;
		1044
		1045	return flags;
849	}	1046	}
850		1047
851	unsigned int	1048	unsigned int
852	ev_backend (EV_P)	1049	ev_backend (EV_P)
853	{	1050	{
854	return backend;	1051	return backend;
855	}	1052	}
856		1053
857	static void	1054	unsigned int
		1055	ev_loop_count (EV_P)
		1056	{
		1057	return loop_count;
		1058	}
		1059
		1060	void
		1061	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1062	{
		1063	io_blocktime = interval;
		1064	}
		1065
		1066	void
		1067	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1068	{
		1069	timeout_blocktime = interval;
		1070	}
		1071
		1072	static void noinline
858	loop_init (EV_P_ unsigned int flags)	1073	loop_init (EV_P_ unsigned int flags)
859	{	1074	{
860	if (!backend)	1075	if (!backend)
861	{	1076	{
862	#if EV_USE_MONOTONIC	1077	#if EV_USE_MONOTONIC
…		…
865	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1080	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
866	have_monotonic = 1;	1081	have_monotonic = 1;
867	}	1082	}
868	#endif	1083	#endif
869		1084
870	ev_rt_now = ev_time ();	1085	ev_rt_now = ev_time ();
871	mn_now = get_clock ();	1086	mn_now = get_clock ();
872	now_floor = mn_now;	1087	now_floor = mn_now;
873	rtmn_diff = ev_rt_now - mn_now;	1088	rtmn_diff = ev_rt_now - mn_now;
		1089
		1090	io_blocktime = 0.;
		1091	timeout_blocktime = 0.;
		1092	backend = 0;
		1093	backend_fd = -1;
		1094	gotasync = 0;
		1095	#if EV_USE_INOTIFY
		1096	fs_fd = -2;
		1097	#endif
		1098
		1099	/* pid check not overridable via env */
		1100	#ifndef _WIN32
		1101	if (flags & EVFLAG_FORKCHECK)
		1102	curpid = getpid ();
		1103	#endif
874		1104
875	if (!(flags & EVFLAG_NOENV)	1105	if (!(flags & EVFLAG_NOENV)
876	&& !enable_secure ()	1106	&& !enable_secure ()
877	&& getenv ("LIBEV_FLAGS"))	1107	&& getenv ("LIBEV_FLAGS"))
878	flags = atoi (getenv ("LIBEV_FLAGS"));	1108	flags = atoi (getenv ("LIBEV_FLAGS"));
879		1109
880	if (!(flags & 0x0000ffffUL))	1110	if (!(flags & 0x0000ffffUL))
881	flags |= ev_recommended_backends ();	1111	flags |= ev_recommended_backends ();
882		1112
883	backend = 0;
884	#if EV_USE_PORT	1113	#if EV_USE_PORT
885	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1114	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
886	#endif	1115	#endif
887	#if EV_USE_KQUEUE	1116	#if EV_USE_KQUEUE
888	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1117	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
895	#endif	1124	#endif
896	#if EV_USE_SELECT	1125	#if EV_USE_SELECT
897	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1126	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
898	#endif	1127	#endif
899		1128
900	ev_init (&sigev, sigcb);	1129	ev_init (&pipeev, pipecb);
901	ev_set_priority (&sigev, EV_MAXPRI);	1130	ev_set_priority (&pipeev, EV_MAXPRI);
902	}	1131	}
903	}	1132	}
904		1133
905	static void	1134	static void noinline
906	loop_destroy (EV_P)	1135	loop_destroy (EV_P)
907	{	1136	{
908	int i;	1137	int i;
		1138
		1139	if (ev_is_active (&pipeev))
		1140	{
		1141	ev_ref (EV_A); /* signal watcher */
		1142	ev_io_stop (EV_A_ &pipeev);
		1143
		1144	close (evpipe [0]); evpipe [0] = 0;
		1145	close (evpipe [1]); evpipe [1] = 0;
		1146	}
		1147
		1148	#if EV_USE_INOTIFY
		1149	if (fs_fd >= 0)
		1150	close (fs_fd);
		1151	#endif
		1152
		1153	if (backend_fd >= 0)
		1154	close (backend_fd);
909		1155
910	#if EV_USE_PORT	1156	#if EV_USE_PORT
911	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1157	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
912	#endif	1158	#endif
913	#if EV_USE_KQUEUE	1159	#if EV_USE_KQUEUE
…		…
922	#if EV_USE_SELECT	1168	#if EV_USE_SELECT
923	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	1169	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
924	#endif	1170	#endif
925		1171
926	for (i = NUMPRI; i--; )	1172	for (i = NUMPRI; i--; )
		1173	{
927	array_free (pending, [i]);	1174	array_free (pending, [i]);
		1175	#if EV_IDLE_ENABLE
		1176	array_free (idle, [i]);
		1177	#endif
		1178	}
		1179
		1180	ev_free (anfds); anfdmax = 0;
928		1181
929	/* have to use the microsoft-never-gets-it-right macro */	1182	/* have to use the microsoft-never-gets-it-right macro */
930	array_free (fdchange, EMPTY0);	1183	array_free (fdchange, EMPTY);
931	array_free (timer, EMPTY0);	1184	array_free (timer, EMPTY);
932	#if EV_PERIODIC_ENABLE	1185	#if EV_PERIODIC_ENABLE
933	array_free (periodic, EMPTY0);	1186	array_free (periodic, EMPTY);
934	#endif	1187	#endif
		1188	#if EV_FORK_ENABLE
935	array_free (idle, EMPTY0);	1189	array_free (fork, EMPTY);
		1190	#endif
936	array_free (prepare, EMPTY0);	1191	array_free (prepare, EMPTY);
937	array_free (check, EMPTY0);	1192	array_free (check, EMPTY);
		1193	#if EV_ASYNC_ENABLE
		1194	array_free (async, EMPTY);
		1195	#endif
938		1196
939	backend = 0;	1197	backend = 0;
940	}	1198	}
941		1199
942	static void	1200	void inline_size infy_fork (EV_P);
		1201
		1202	void inline_size
943	loop_fork (EV_P)	1203	loop_fork (EV_P)
944	{	1204	{
945	#if EV_USE_PORT	1205	#if EV_USE_PORT
946	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	1206	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
947	#endif	1207	#endif
…		…
949	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	1209	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
950	#endif	1210	#endif
951	#if EV_USE_EPOLL	1211	#if EV_USE_EPOLL
952	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	1212	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
953	#endif	1213	#endif
		1214	#if EV_USE_INOTIFY
		1215	infy_fork (EV_A);
		1216	#endif
954		1217
955	if (ev_is_active (&sigev))	1218	if (ev_is_active (&pipeev))
956	{	1219	{
957	/* default loop */	1220	/* this "locks" the handlers against writing to the pipe */
		1221	/* while we modify the fd vars */
		1222	gotsig = 1;
		1223	#if EV_ASYNC_ENABLE
		1224	gotasync = 1;
		1225	#endif
958		1226
959	ev_ref (EV_A);	1227	ev_ref (EV_A);
960	ev_io_stop (EV_A_ &sigev);	1228	ev_io_stop (EV_A_ &pipeev);
961	close (sigpipe [0]);	1229	close (evpipe [0]);
962	close (sigpipe [1]);	1230	close (evpipe [1]);
963		1231
964	while (pipe (sigpipe))
965	syserr ("(libev) error creating pipe");
966
967	siginit (EV_A);	1232	evpipe_init (EV_A);
		1233	/* now iterate over everything, in case we missed something */
		1234	pipecb (EV_A_ &pipeev, EV_READ);
968	}	1235	}
969		1236
970	postfork = 0;	1237	postfork = 0;
971	}	1238	}
972		1239
…		…
994	}	1261	}
995		1262
996	void	1263	void
997	ev_loop_fork (EV_P)	1264	ev_loop_fork (EV_P)
998	{	1265	{
999	postfork = 1;	1266	postfork = 1; /* must be in line with ev_default_fork */
1000	}	1267	}
1001		1268
1002	#endif	1269	#endif
1003		1270
1004	#if EV_MULTIPLICITY	1271	#if EV_MULTIPLICITY
…		…
1007	#else	1274	#else
1008	int	1275	int
1009	ev_default_loop (unsigned int flags)	1276	ev_default_loop (unsigned int flags)
1010	#endif	1277	#endif
1011	{	1278	{
1012	if (sigpipe [0] == sigpipe [1])
1013	if (pipe (sigpipe))
1014	return 0;
1015
1016	if (!ev_default_loop_ptr)	1279	if (!ev_default_loop_ptr)
1017	{	1280	{
1018	#if EV_MULTIPLICITY	1281	#if EV_MULTIPLICITY
1019	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1282	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1020	#else	1283	#else
…		…
1023		1286
1024	loop_init (EV_A_ flags);	1287	loop_init (EV_A_ flags);
1025		1288
1026	if (ev_backend (EV_A))	1289	if (ev_backend (EV_A))
1027	{	1290	{
1028	siginit (EV_A);
1029
1030	#ifndef _WIN32	1291	#ifndef _WIN32
1031	ev_signal_init (&childev, childcb, SIGCHLD);	1292	ev_signal_init (&childev, childcb, SIGCHLD);
1032	ev_set_priority (&childev, EV_MAXPRI);	1293	ev_set_priority (&childev, EV_MAXPRI);
1033	ev_signal_start (EV_A_ &childev);	1294	ev_signal_start (EV_A_ &childev);
1034	ev_unref (EV_A); /* child watcher should not keep loop alive */	1295	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1051	#ifndef _WIN32	1312	#ifndef _WIN32
1052	ev_ref (EV_A); /* child watcher */	1313	ev_ref (EV_A); /* child watcher */
1053	ev_signal_stop (EV_A_ &childev);	1314	ev_signal_stop (EV_A_ &childev);
1054	#endif	1315	#endif
1055		1316
1056	ev_ref (EV_A); /* signal watcher */
1057	ev_io_stop (EV_A_ &sigev);
1058
1059	close (sigpipe [0]); sigpipe [0] = 0;
1060	close (sigpipe [1]); sigpipe [1] = 0;
1061
1062	loop_destroy (EV_A);	1317	loop_destroy (EV_A);
1063	}	1318	}
1064		1319
1065	void	1320	void
1066	ev_default_fork (void)	1321	ev_default_fork (void)
…		…
1068	#if EV_MULTIPLICITY	1323	#if EV_MULTIPLICITY
1069	struct ev_loop *loop = ev_default_loop_ptr;	1324	struct ev_loop *loop = ev_default_loop_ptr;
1070	#endif	1325	#endif
1071		1326
1072	if (backend)	1327	if (backend)
1073	postfork = 1;	1328	postfork = 1; /* must be in line with ev_loop_fork */
1074	}	1329	}
1075		1330
1076	/*****************************************************************************/	1331	/*****************************************************************************/
1077		1332
1078	int inline_size	1333	void
1079	any_pending (EV_P)	1334	ev_invoke (EV_P_ void *w, int revents)
1080	{	1335	{
1081	int pri;	1336	EV_CB_INVOKE ((W)w, revents);
1082
1083	for (pri = NUMPRI; pri--; )
1084	if (pendingcnt [pri])
1085	return 1;
1086
1087	return 0;
1088	}	1337	}
1089		1338
1090	void inline_speed	1339	void inline_speed
1091	call_pending (EV_P)	1340	call_pending (EV_P)
1092	{	1341	{
…		…
1097	{	1346	{
1098	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1347	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1099		1348
1100	if (expect_true (p->w))	1349	if (expect_true (p->w))
1101	{	1350	{
1102	assert (("non-pending watcher on pending list", p->w->pending));	1351	/*assert (("non-pending watcher on pending list", p->w->pending));*/
1103		1352
1104	p->w->pending = 0;	1353	p->w->pending = 0;
1105	EV_CB_INVOKE (p->w, p->events);	1354	EV_CB_INVOKE (p->w, p->events);
1106	}	1355	}
1107	}	1356	}
…		…
1110	void inline_size	1359	void inline_size
1111	timers_reify (EV_P)	1360	timers_reify (EV_P)
1112	{	1361	{
1113	while (timercnt && ((WT)timers [0])->at <= mn_now)	1362	while (timercnt && ((WT)timers [0])->at <= mn_now)
1114	{	1363	{
1115	ev_timer *w = timers [0];	1364	ev_timer *w = (ev_timer *)timers [0];
1116		1365
1117	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1366	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1118		1367
1119	/* first reschedule or stop timer */	1368	/* first reschedule or stop timer */
1120	if (w->repeat)	1369	if (w->repeat)
1121	{	1370	{
1122	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1371	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1123		1372
1124	((WT)w)->at += w->repeat;	1373	((WT)w)->at += w->repeat;
1125	if (((WT)w)->at < mn_now)	1374	if (((WT)w)->at < mn_now)
1126	((WT)w)->at = mn_now;	1375	((WT)w)->at = mn_now;
1127		1376
1128	downheap ((WT *)timers, timercnt, 0);	1377	downheap (timers, timercnt, 0);
1129	}	1378	}
1130	else	1379	else
1131	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1380	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1132		1381
1133	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1382	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
…		…
1138	void inline_size	1387	void inline_size
1139	periodics_reify (EV_P)	1388	periodics_reify (EV_P)
1140	{	1389	{
1141	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1390	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1142	{	1391	{
1143	ev_periodic *w = periodics [0];	1392	ev_periodic *w = (ev_periodic *)periodics [0];
1144		1393
1145	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1394	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1146		1395
1147	/* first reschedule or stop timer */	1396	/* first reschedule or stop timer */
1148	if (w->reschedule_cb)	1397	if (w->reschedule_cb)
1149	{	1398	{
1150	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1399	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1151	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1400	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1152	downheap ((WT *)periodics, periodiccnt, 0);	1401	downheap (periodics, periodiccnt, 0);
1153	}	1402	}
1154	else if (w->interval)	1403	else if (w->interval)
1155	{	1404	{
1156	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1405	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1406	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1157	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));	1407	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1158	downheap ((WT *)periodics, periodiccnt, 0);	1408	downheap (periodics, periodiccnt, 0);
1159	}	1409	}
1160	else	1410	else
1161	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1411	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1162		1412
1163	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);	1413	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
…		…
1170	int i;	1420	int i;
1171		1421
1172	/* adjust periodics after time jump */	1422	/* adjust periodics after time jump */
1173	for (i = 0; i < periodiccnt; ++i)	1423	for (i = 0; i < periodiccnt; ++i)
1174	{	1424	{
1175	ev_periodic *w = periodics [i];	1425	ev_periodic *w = (ev_periodic *)periodics [i];
1176		1426
1177	if (w->reschedule_cb)	1427	if (w->reschedule_cb)
1178	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1428	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1179	else if (w->interval)	1429	else if (w->interval)
1180	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1430	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1181	}	1431	}
1182		1432
1183	/* now rebuild the heap */	1433	/* now rebuild the heap */
1184	for (i = periodiccnt >> 1; i--; )	1434	for (i = periodiccnt >> 1; i--; )
1185	downheap ((WT *)periodics, periodiccnt, i);	1435	downheap (periodics, periodiccnt, i);
1186	}	1436	}
1187	#endif	1437	#endif
1188		1438
		1439	#if EV_IDLE_ENABLE
1189	int inline_size	1440	void inline_size
1190	time_update_monotonic (EV_P)	1441	idle_reify (EV_P)
1191	{	1442	{
		1443	if (expect_false (idleall))
		1444	{
		1445	int pri;
		1446
		1447	for (pri = NUMPRI; pri--; )
		1448	{
		1449	if (pendingcnt [pri])
		1450	break;
		1451
		1452	if (idlecnt [pri])
		1453	{
		1454	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
		1455	break;
		1456	}
		1457	}
		1458	}
		1459	}
		1460	#endif
		1461
		1462	void inline_speed
		1463	time_update (EV_P_ ev_tstamp max_block)
		1464	{
		1465	int i;
		1466
		1467	#if EV_USE_MONOTONIC
		1468	if (expect_true (have_monotonic))
		1469	{
		1470	ev_tstamp odiff = rtmn_diff;
		1471
1192	mn_now = get_clock ();	1472	mn_now = get_clock ();
1193		1473
		1474	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
		1475	/* interpolate in the meantime */
1194	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1476	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1195	{	1477	{
1196	ev_rt_now = rtmn_diff + mn_now;	1478	ev_rt_now = rtmn_diff + mn_now;
1197	return 0;	1479	return;
1198	}	1480	}
1199	else	1481
1200	{
1201	now_floor = mn_now;	1482	now_floor = mn_now;
1202	ev_rt_now = ev_time ();	1483	ev_rt_now = ev_time ();
1203	return 1;
1204	}
1205	}
1206		1484
1207	void inline_size	1485	/* loop a few times, before making important decisions.
1208	time_update (EV_P)	1486	* on the choice of "4": one iteration isn't enough,
1209	{	1487	* in case we get preempted during the calls to
1210	int i;	1488	* ev_time and get_clock. a second call is almost guaranteed
1211		1489	* to succeed in that case, though. and looping a few more times
1212	#if EV_USE_MONOTONIC	1490	* doesn't hurt either as we only do this on time-jumps or
1213	if (expect_true (have_monotonic))	1491	* in the unlikely event of having been preempted here.
1214	{	1492	*/
1215	if (time_update_monotonic (EV_A))	1493	for (i = 4; --i; )
1216	{	1494	{
1217	ev_tstamp odiff = rtmn_diff;
1218
1219	/* loop a few times, before making important decisions.
1220	* on the choice of "4": one iteration isn't enough,
1221	* in case we get preempted during the calls to
1222	* ev_time and get_clock. a second call is almost guarenteed
1223	* to succeed in that case, though. and looping a few more times
1224	* doesn't hurt either as we only do this on time-jumps or
1225	* in the unlikely event of getting preempted here.
1226	*/
1227	for (i = 4; --i; )
1228	{
1229	rtmn_diff = ev_rt_now - mn_now;	1495	rtmn_diff = ev_rt_now - mn_now;
1230		1496
1231	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1497	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1232	return; /* all is well */	1498	return; /* all is well */
1233		1499
1234	ev_rt_now = ev_time ();	1500	ev_rt_now = ev_time ();
1235	mn_now = get_clock ();	1501	mn_now = get_clock ();
1236	now_floor = mn_now;	1502	now_floor = mn_now;
1237	}	1503	}
1238		1504
1239	# if EV_PERIODIC_ENABLE	1505	# if EV_PERIODIC_ENABLE
1240	periodics_reschedule (EV_A);	1506	periodics_reschedule (EV_A);
1241	# endif	1507	# endif
1242	/* no timer adjustment, as the monotonic clock doesn't jump */	1508	/* no timer adjustment, as the monotonic clock doesn't jump */
1243	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1509	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1244	}
1245	}	1510	}
1246	else	1511	else
1247	#endif	1512	#endif
1248	{	1513	{
1249	ev_rt_now = ev_time ();	1514	ev_rt_now = ev_time ();
1250		1515
1251	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1516	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1252	{	1517	{
1253	#if EV_PERIODIC_ENABLE	1518	#if EV_PERIODIC_ENABLE
1254	periodics_reschedule (EV_A);	1519	periodics_reschedule (EV_A);
1255	#endif	1520	#endif
1256
1257	/* adjust timers. this is easy, as the offset is the same for all */	1521	/* adjust timers. this is easy, as the offset is the same for all of them */
1258	for (i = 0; i < timercnt; ++i)	1522	for (i = 0; i < timercnt; ++i)
1259	((WT)timers [i])->at += ev_rt_now - mn_now;	1523	((WT)timers [i])->at += ev_rt_now - mn_now;
1260	}	1524	}
1261		1525
1262	mn_now = ev_rt_now;	1526	mn_now = ev_rt_now;
…		…
1278	static int loop_done;	1542	static int loop_done;
1279		1543
1280	void	1544	void
1281	ev_loop (EV_P_ int flags)	1545	ev_loop (EV_P_ int flags)
1282	{	1546	{
1283	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1547	loop_done = EVUNLOOP_CANCEL;
1284	? EVUNLOOP_ONE
1285	: EVUNLOOP_CANCEL;
1286		1548
1287	while (activecnt)	1549	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
		1550
		1551	do
1288	{	1552	{
1289	/* we might have forked, so reify kernel state if necessary */	1553	#ifndef _WIN32
		1554	if (expect_false (curpid)) /* penalise the forking check even more */
		1555	if (expect_false (getpid () != curpid))
		1556	{
		1557	curpid = getpid ();
		1558	postfork = 1;
		1559	}
		1560	#endif
		1561
1290	#if EV_FORK_ENABLE	1562	#if EV_FORK_ENABLE
		1563	/* we might have forked, so queue fork handlers */
1291	if (expect_false (postfork))	1564	if (expect_false (postfork))
1292	if (forkcnt)	1565	if (forkcnt)
1293	{	1566	{
1294	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	1567	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1295	call_pending (EV_A);	1568	call_pending (EV_A);
1296	}	1569	}
1297	#endif	1570	#endif
1298		1571
1299	/* queue check watchers (and execute them) */	1572	/* queue prepare watchers (and execute them) */
1300	if (expect_false (preparecnt))	1573	if (expect_false (preparecnt))
1301	{	1574	{
1302	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1575	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1303	call_pending (EV_A);	1576	call_pending (EV_A);
1304	}	1577	}
1305		1578
		1579	if (expect_false (!activecnt))
		1580	break;
		1581
1306	/* we might have forked, so reify kernel state if necessary */	1582	/* we might have forked, so reify kernel state if necessary */
1307	if (expect_false (postfork))	1583	if (expect_false (postfork))
1308	loop_fork (EV_A);	1584	loop_fork (EV_A);
1309		1585
1310	/* update fd-related kernel structures */	1586	/* update fd-related kernel structures */
1311	fd_reify (EV_A);	1587	fd_reify (EV_A);
1312		1588
1313	/* calculate blocking time */	1589	/* calculate blocking time */
1314	{	1590	{
1315	double block;	1591	ev_tstamp waittime = 0.;
		1592	ev_tstamp sleeptime = 0.;
1316		1593
1317	if (flags & EVLOOP_NONBLOCK || idlecnt)	1594	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1318	block = 0.; /* do not block at all */
1319	else
1320	{	1595	{
1321	/* update time to cancel out callback processing overhead */	1596	/* update time to cancel out callback processing overhead */
1322	#if EV_USE_MONOTONIC
1323	if (expect_true (have_monotonic))
1324	time_update_monotonic (EV_A);	1597	time_update (EV_A_ 1e100);
1325	else
1326	#endif
1327	{
1328	ev_rt_now = ev_time ();
1329	mn_now = ev_rt_now;
1330	}
1331		1598
1332	block = MAX_BLOCKTIME;	1599	waittime = MAX_BLOCKTIME;
1333		1600
1334	if (timercnt)	1601	if (timercnt)
1335	{	1602	{
1336	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1603	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1337	if (block > to) block = to;	1604	if (waittime > to) waittime = to;
1338	}	1605	}
1339		1606
1340	#if EV_PERIODIC_ENABLE	1607	#if EV_PERIODIC_ENABLE
1341	if (periodiccnt)	1608	if (periodiccnt)
1342	{	1609	{
1343	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1610	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1344	if (block > to) block = to;	1611	if (waittime > to) waittime = to;
1345	}	1612	}
1346	#endif	1613	#endif
1347		1614
1348	if (expect_false (block < 0.)) block = 0.;	1615	if (expect_false (waittime < timeout_blocktime))
		1616	waittime = timeout_blocktime;
		1617
		1618	sleeptime = waittime - backend_fudge;
		1619
		1620	if (expect_true (sleeptime > io_blocktime))
		1621	sleeptime = io_blocktime;
		1622
		1623	if (sleeptime)
		1624	{
		1625	ev_sleep (sleeptime);
		1626	waittime -= sleeptime;
		1627	}
1349	}	1628	}
1350		1629
		1630	++loop_count;
1351	backend_poll (EV_A_ block);	1631	backend_poll (EV_A_ waittime);
		1632
		1633	/* update ev_rt_now, do magic */
		1634	time_update (EV_A_ waittime + sleeptime);
1352	}	1635	}
1353
1354	/* update ev_rt_now, do magic */
1355	time_update (EV_A);
1356		1636
1357	/* queue pending timers and reschedule them */	1637	/* queue pending timers and reschedule them */
1358	timers_reify (EV_A); /* relative timers called last */	1638	timers_reify (EV_A); /* relative timers called last */
1359	#if EV_PERIODIC_ENABLE	1639	#if EV_PERIODIC_ENABLE
1360	periodics_reify (EV_A); /* absolute timers called first */	1640	periodics_reify (EV_A); /* absolute timers called first */
1361	#endif	1641	#endif
1362		1642
		1643	#if EV_IDLE_ENABLE
1363	/* queue idle watchers unless other events are pending */	1644	/* queue idle watchers unless other events are pending */
1364	if (idlecnt && !any_pending (EV_A))	1645	idle_reify (EV_A);
1365	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1646	#endif
1366		1647
1367	/* queue check watchers, to be executed first */	1648	/* queue check watchers, to be executed first */
1368	if (expect_false (checkcnt))	1649	if (expect_false (checkcnt))
1369	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1650	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1370		1651
1371	call_pending (EV_A);	1652	call_pending (EV_A);
1372
1373	if (expect_false (loop_done))
1374	break;
1375	}	1653	}
		1654	while (expect_true (
		1655	activecnt
		1656	&& !loop_done
		1657	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1658	));
1376		1659
1377	if (loop_done == EVUNLOOP_ONE)	1660	if (loop_done == EVUNLOOP_ONE)
1378	loop_done = EVUNLOOP_CANCEL;	1661	loop_done = EVUNLOOP_CANCEL;
1379	}	1662	}
1380		1663
…		…
1407	head = &(*head)->next;	1690	head = &(*head)->next;
1408	}	1691	}
1409	}	1692	}
1410		1693
1411	void inline_speed	1694	void inline_speed
1412	ev_clear_pending (EV_P_ W w)	1695	clear_pending (EV_P_ W w)
1413	{	1696	{
1414	if (w->pending)	1697	if (w->pending)
1415	{	1698	{
1416	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1699	pendings [ABSPRI (w)][w->pending - 1].w = 0;
1417	w->pending = 0;	1700	w->pending = 0;
1418	}	1701	}
1419	}	1702	}
1420		1703
		1704	int
		1705	ev_clear_pending (EV_P_ void *w)
		1706	{
		1707	W w_ = (W)w;
		1708	int pending = w_->pending;
		1709
		1710	if (expect_true (pending))
		1711	{
		1712	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
		1713	w_->pending = 0;
		1714	p->w = 0;
		1715	return p->events;
		1716	}
		1717	else
		1718	return 0;
		1719	}
		1720
		1721	void inline_size
		1722	pri_adjust (EV_P_ W w)
		1723	{
		1724	int pri = w->priority;
		1725	pri = pri < EV_MINPRI ? EV_MINPRI : pri;
		1726	pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
		1727	w->priority = pri;
		1728	}
		1729
1421	void inline_speed	1730	void inline_speed
1422	ev_start (EV_P_ W w, int active)	1731	ev_start (EV_P_ W w, int active)
1423	{	1732	{
1424	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1733	pri_adjust (EV_A_ w);
1425	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1426
1427	w->active = active;	1734	w->active = active;
1428	ev_ref (EV_A);	1735	ev_ref (EV_A);
1429	}	1736	}
1430		1737
1431	void inline_size	1738	void inline_size
…		…
1435	w->active = 0;	1742	w->active = 0;
1436	}	1743	}
1437		1744
1438	/*****************************************************************************/	1745	/*****************************************************************************/
1439		1746
1440	void	1747	void noinline
1441	ev_io_start (EV_P_ ev_io *w)	1748	ev_io_start (EV_P_ ev_io *w)
1442	{	1749	{
1443	int fd = w->fd;	1750	int fd = w->fd;
1444		1751
1445	if (expect_false (ev_is_active (w)))	1752	if (expect_false (ev_is_active (w)))
…		…
1447		1754
1448	assert (("ev_io_start called with negative fd", fd >= 0));	1755	assert (("ev_io_start called with negative fd", fd >= 0));
1449		1756
1450	ev_start (EV_A_ (W)w, 1);	1757	ev_start (EV_A_ (W)w, 1);
1451	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	1758	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1452	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1759	wlist_add (&anfds[fd].head, (WL)w);
1453		1760
1454	fd_change (EV_A_ fd);	1761	fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
		1762	w->events &= ~EV_IOFDSET;
1455	}	1763	}
1456		1764
1457	void	1765	void noinline
1458	ev_io_stop (EV_P_ ev_io *w)	1766	ev_io_stop (EV_P_ ev_io *w)
1459	{	1767	{
1460	ev_clear_pending (EV_A_ (W)w);	1768	clear_pending (EV_A_ (W)w);
1461	if (expect_false (!ev_is_active (w)))	1769	if (expect_false (!ev_is_active (w)))
1462	return;	1770	return;
1463		1771
1464	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1772	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1465		1773
1466	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1774	wlist_del (&anfds[w->fd].head, (WL)w);
1467	ev_stop (EV_A_ (W)w);	1775	ev_stop (EV_A_ (W)w);
1468		1776
1469	fd_change (EV_A_ w->fd);	1777	fd_change (EV_A_ w->fd, 1);
1470	}	1778	}
1471		1779
1472	void	1780	void noinline
1473	ev_timer_start (EV_P_ ev_timer *w)	1781	ev_timer_start (EV_P_ ev_timer *w)
1474	{	1782	{
1475	if (expect_false (ev_is_active (w)))	1783	if (expect_false (ev_is_active (w)))
1476	return;	1784	return;
1477		1785
1478	((WT)w)->at += mn_now;	1786	((WT)w)->at += mn_now;
1479		1787
1480	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1788	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1481		1789
1482	ev_start (EV_A_ (W)w, ++timercnt);	1790	ev_start (EV_A_ (W)w, ++timercnt);
1483	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);	1791	array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1484	timers [timercnt - 1] = w;	1792	timers [timercnt - 1] = (WT)w;
1485	upheap ((WT *)timers, timercnt - 1);	1793	upheap (timers, timercnt - 1);
1486		1794
1487	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1795	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1488	}	1796	}
1489		1797
1490	void	1798	void noinline
1491	ev_timer_stop (EV_P_ ev_timer *w)	1799	ev_timer_stop (EV_P_ ev_timer *w)
1492	{	1800	{
1493	ev_clear_pending (EV_A_ (W)w);	1801	clear_pending (EV_A_ (W)w);
1494	if (expect_false (!ev_is_active (w)))	1802	if (expect_false (!ev_is_active (w)))
1495	return;	1803	return;
1496		1804
1497	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1805	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1498		1806
		1807	{
		1808	int active = ((W)w)->active;
		1809
1499	if (expect_true (((W)w)->active < timercnt--))	1810	if (expect_true (--active < --timercnt))
1500	{	1811	{
1501	timers [((W)w)->active - 1] = timers [timercnt];	1812	timers [active] = timers [timercnt];
1502	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1813	adjustheap (timers, timercnt, active);
1503	}	1814	}
		1815	}
1504		1816
1505	((WT)w)->at -= mn_now;	1817	((WT)w)->at -= mn_now;
1506		1818
1507	ev_stop (EV_A_ (W)w);	1819	ev_stop (EV_A_ (W)w);
1508	}	1820	}
1509		1821
1510	void	1822	void noinline
1511	ev_timer_again (EV_P_ ev_timer *w)	1823	ev_timer_again (EV_P_ ev_timer *w)
1512	{	1824	{
1513	if (ev_is_active (w))	1825	if (ev_is_active (w))
1514	{	1826	{
1515	if (w->repeat)	1827	if (w->repeat)
1516	{	1828	{
1517	((WT)w)->at = mn_now + w->repeat;	1829	((WT)w)->at = mn_now + w->repeat;
1518	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1830	adjustheap (timers, timercnt, ((W)w)->active - 1);
1519	}	1831	}
1520	else	1832	else
1521	ev_timer_stop (EV_A_ w);	1833	ev_timer_stop (EV_A_ w);
1522	}	1834	}
1523	else if (w->repeat)	1835	else if (w->repeat)
…		…
1526	ev_timer_start (EV_A_ w);	1838	ev_timer_start (EV_A_ w);
1527	}	1839	}
1528	}	1840	}
1529		1841
1530	#if EV_PERIODIC_ENABLE	1842	#if EV_PERIODIC_ENABLE
1531	void	1843	void noinline
1532	ev_periodic_start (EV_P_ ev_periodic *w)	1844	ev_periodic_start (EV_P_ ev_periodic *w)
1533	{	1845	{
1534	if (expect_false (ev_is_active (w)))	1846	if (expect_false (ev_is_active (w)))
1535	return;	1847	return;
1536		1848
…		…
1538	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1850	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1539	else if (w->interval)	1851	else if (w->interval)
1540	{	1852	{
1541	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1853	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1542	/* this formula differs from the one in periodic_reify because we do not always round up */	1854	/* this formula differs from the one in periodic_reify because we do not always round up */
1543	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1855	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1544	}	1856	}
		1857	else
		1858	((WT)w)->at = w->offset;
1545		1859
1546	ev_start (EV_A_ (W)w, ++periodiccnt);	1860	ev_start (EV_A_ (W)w, ++periodiccnt);
1547	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);	1861	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1548	periodics [periodiccnt - 1] = w;	1862	periodics [periodiccnt - 1] = (WT)w;
1549	upheap ((WT *)periodics, periodiccnt - 1);	1863	upheap (periodics, periodiccnt - 1);
1550		1864
1551	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1865	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1552	}	1866	}
1553		1867
1554	void	1868	void noinline
1555	ev_periodic_stop (EV_P_ ev_periodic *w)	1869	ev_periodic_stop (EV_P_ ev_periodic *w)
1556	{	1870	{
1557	ev_clear_pending (EV_A_ (W)w);	1871	clear_pending (EV_A_ (W)w);
1558	if (expect_false (!ev_is_active (w)))	1872	if (expect_false (!ev_is_active (w)))
1559	return;	1873	return;
1560		1874
1561	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1875	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1562		1876
		1877	{
		1878	int active = ((W)w)->active;
		1879
1563	if (expect_true (((W)w)->active < periodiccnt--))	1880	if (expect_true (--active < --periodiccnt))
1564	{	1881	{
1565	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1882	periodics [active] = periodics [periodiccnt];
1566	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1883	adjustheap (periodics, periodiccnt, active);
1567	}	1884	}
		1885	}
1568		1886
1569	ev_stop (EV_A_ (W)w);	1887	ev_stop (EV_A_ (W)w);
1570	}	1888	}
1571		1889
1572	void	1890	void noinline
1573	ev_periodic_again (EV_P_ ev_periodic *w)	1891	ev_periodic_again (EV_P_ ev_periodic *w)
1574	{	1892	{
1575	/* TODO: use adjustheap and recalculation */	1893	/* TODO: use adjustheap and recalculation */
1576	ev_periodic_stop (EV_A_ w);	1894	ev_periodic_stop (EV_A_ w);
1577	ev_periodic_start (EV_A_ w);	1895	ev_periodic_start (EV_A_ w);
…		…
1580		1898
1581	#ifndef SA_RESTART	1899	#ifndef SA_RESTART
1582	# define SA_RESTART 0	1900	# define SA_RESTART 0
1583	#endif	1901	#endif
1584		1902
1585	void	1903	void noinline
1586	ev_signal_start (EV_P_ ev_signal *w)	1904	ev_signal_start (EV_P_ ev_signal *w)
1587	{	1905	{
1588	#if EV_MULTIPLICITY	1906	#if EV_MULTIPLICITY
1589	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));	1907	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1590	#endif	1908	#endif
1591	if (expect_false (ev_is_active (w)))	1909	if (expect_false (ev_is_active (w)))
1592	return;	1910	return;
1593		1911
1594	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1912	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1595		1913
		1914	evpipe_init (EV_A);
		1915
		1916	{
		1917	#ifndef _WIN32
		1918	sigset_t full, prev;
		1919	sigfillset (&full);
		1920	sigprocmask (SIG_SETMASK, &full, &prev);
		1921	#endif
		1922
		1923	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
		1924
		1925	#ifndef _WIN32
		1926	sigprocmask (SIG_SETMASK, &prev, 0);
		1927	#endif
		1928	}
		1929
1596	ev_start (EV_A_ (W)w, 1);	1930	ev_start (EV_A_ (W)w, 1);
1597	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1598	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1931	wlist_add (&signals [w->signum - 1].head, (WL)w);
1599		1932
1600	if (!((WL)w)->next)	1933	if (!((WL)w)->next)
1601	{	1934	{
1602	#if _WIN32	1935	#if _WIN32
1603	signal (w->signum, sighandler);	1936	signal (w->signum, ev_sighandler);
1604	#else	1937	#else
1605	struct sigaction sa;	1938	struct sigaction sa;
1606	sa.sa_handler = sighandler;	1939	sa.sa_handler = ev_sighandler;
1607	sigfillset (&sa.sa_mask);	1940	sigfillset (&sa.sa_mask);
1608	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1941	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1609	sigaction (w->signum, &sa, 0);	1942	sigaction (w->signum, &sa, 0);
1610	#endif	1943	#endif
1611	}	1944	}
1612	}	1945	}
1613		1946
1614	void	1947	void noinline
1615	ev_signal_stop (EV_P_ ev_signal *w)	1948	ev_signal_stop (EV_P_ ev_signal *w)
1616	{	1949	{
1617	ev_clear_pending (EV_A_ (W)w);	1950	clear_pending (EV_A_ (W)w);
1618	if (expect_false (!ev_is_active (w)))	1951	if (expect_false (!ev_is_active (w)))
1619	return;	1952	return;
1620		1953
1621	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1954	wlist_del (&signals [w->signum - 1].head, (WL)w);
1622	ev_stop (EV_A_ (W)w);	1955	ev_stop (EV_A_ (W)w);
1623		1956
1624	if (!signals [w->signum - 1].head)	1957	if (!signals [w->signum - 1].head)
1625	signal (w->signum, SIG_DFL);	1958	signal (w->signum, SIG_DFL);
1626	}	1959	}
…		…
1633	#endif	1966	#endif
1634	if (expect_false (ev_is_active (w)))	1967	if (expect_false (ev_is_active (w)))
1635	return;	1968	return;
1636		1969
1637	ev_start (EV_A_ (W)w, 1);	1970	ev_start (EV_A_ (W)w, 1);
1638	wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1971	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1639	}	1972	}
1640		1973
1641	void	1974	void
1642	ev_child_stop (EV_P_ ev_child *w)	1975	ev_child_stop (EV_P_ ev_child *w)
1643	{	1976	{
1644	ev_clear_pending (EV_A_ (W)w);	1977	clear_pending (EV_A_ (W)w);
1645	if (expect_false (!ev_is_active (w)))	1978	if (expect_false (!ev_is_active (w)))
1646	return;	1979	return;
1647		1980
1648	wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	1981	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1649	ev_stop (EV_A_ (W)w);	1982	ev_stop (EV_A_ (W)w);
1650	}	1983	}
1651		1984
1652	#if EV_STAT_ENABLE	1985	#if EV_STAT_ENABLE
1653		1986
…		…
1657	# endif	1990	# endif
1658		1991
1659	#define DEF_STAT_INTERVAL 5.0074891	1992	#define DEF_STAT_INTERVAL 5.0074891
1660	#define MIN_STAT_INTERVAL 0.1074891	1993	#define MIN_STAT_INTERVAL 0.1074891
1661		1994
		1995	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
		1996
		1997	#if EV_USE_INOTIFY
		1998	# define EV_INOTIFY_BUFSIZE 8192
		1999
		2000	static void noinline
		2001	infy_add (EV_P_ ev_stat *w)
		2002	{
		2003	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);
		2004
		2005	if (w->wd < 0)
		2006	{
		2007	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
		2008
		2009	/* monitor some parent directory for speedup hints */
		2010	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
		2011	{
		2012	char path [4096];
		2013	strcpy (path, w->path);
		2014
		2015	do
		2016	{
		2017	int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
		2018	| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
		2019
		2020	char *pend = strrchr (path, '/');
		2021
		2022	if (!pend)
		2023	break; /* whoops, no '/', complain to your admin */
		2024
		2025	*pend = 0;
		2026	w->wd = inotify_add_watch (fs_fd, path, mask);
		2027	}
		2028	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
		2029	}
		2030	}
		2031	else
		2032	ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
		2033
		2034	if (w->wd >= 0)
		2035	wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
		2036	}
		2037
		2038	static void noinline
		2039	infy_del (EV_P_ ev_stat *w)
		2040	{
		2041	int slot;
		2042	int wd = w->wd;
		2043
		2044	if (wd < 0)
		2045	return;
		2046
		2047	w->wd = -2;
		2048	slot = wd & (EV_INOTIFY_HASHSIZE - 1);
		2049	wlist_del (&fs_hash [slot].head, (WL)w);
		2050
		2051	/* remove this watcher, if others are watching it, they will rearm */
		2052	inotify_rm_watch (fs_fd, wd);
		2053	}
		2054
		2055	static void noinline
		2056	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
		2057	{
		2058	if (slot < 0)
		2059	/* overflow, need to check for all hahs slots */
		2060	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2061	infy_wd (EV_A_ slot, wd, ev);
		2062	else
		2063	{
		2064	WL w_;
		2065
		2066	for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
		2067	{
		2068	ev_stat *w = (ev_stat *)w_;
		2069	w_ = w_->next; /* lets us remove this watcher and all before it */
		2070
		2071	if (w->wd == wd || wd == -1)
		2072	{
		2073	if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
		2074	{
		2075	w->wd = -1;
		2076	infy_add (EV_A_ w); /* re-add, no matter what */
		2077	}
		2078
		2079	stat_timer_cb (EV_A_ &w->timer, 0);
		2080	}
		2081	}
		2082	}
		2083	}
		2084
		2085	static void
		2086	infy_cb (EV_P_ ev_io *w, int revents)
		2087	{
		2088	char buf [EV_INOTIFY_BUFSIZE];
		2089	struct inotify_event *ev = (struct inotify_event *)buf;
		2090	int ofs;
		2091	int len = read (fs_fd, buf, sizeof (buf));
		2092
		2093	for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
		2094	infy_wd (EV_A_ ev->wd, ev->wd, ev);
		2095	}
		2096
		2097	void inline_size
		2098	infy_init (EV_P)
		2099	{
		2100	if (fs_fd != -2)
		2101	return;
		2102
		2103	fs_fd = inotify_init ();
		2104
		2105	if (fs_fd >= 0)
		2106	{
		2107	ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
		2108	ev_set_priority (&fs_w, EV_MAXPRI);
		2109	ev_io_start (EV_A_ &fs_w);
		2110	}
		2111	}
		2112
		2113	void inline_size
		2114	infy_fork (EV_P)
		2115	{
		2116	int slot;
		2117
		2118	if (fs_fd < 0)
		2119	return;
		2120
		2121	close (fs_fd);
		2122	fs_fd = inotify_init ();
		2123
		2124	for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
		2125	{
		2126	WL w_ = fs_hash [slot].head;
		2127	fs_hash [slot].head = 0;
		2128
		2129	while (w_)
		2130	{
		2131	ev_stat *w = (ev_stat *)w_;
		2132	w_ = w_->next; /* lets us add this watcher */
		2133
		2134	w->wd = -1;
		2135
		2136	if (fs_fd >= 0)
		2137	infy_add (EV_A_ w); /* re-add, no matter what */
		2138	else
		2139	ev_timer_start (EV_A_ &w->timer);
		2140	}
		2141
		2142	}
		2143	}
		2144
		2145	#endif
		2146
1662	void	2147	void
1663	ev_stat_stat (EV_P_ ev_stat *w)	2148	ev_stat_stat (EV_P_ ev_stat *w)
1664	{	2149	{
1665	if (lstat (w->path, &w->attr) < 0)	2150	if (lstat (w->path, &w->attr) < 0)
1666	w->attr.st_nlink = 0;	2151	w->attr.st_nlink = 0;
1667	else if (!w->attr.st_nlink)	2152	else if (!w->attr.st_nlink)
1668	w->attr.st_nlink = 1;	2153	w->attr.st_nlink = 1;
1669	}	2154	}
1670		2155
1671	static void	2156	static void noinline
1672	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	2157	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1673	{	2158	{
1674	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	2159	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1675		2160
1676	/* we copy this here each the time so that */	2161	/* we copy this here each the time so that */
1677	/* prev has the old value when the callback gets invoked */	2162	/* prev has the old value when the callback gets invoked */
1678	w->prev = w->attr;	2163	w->prev = w->attr;
1679	ev_stat_stat (EV_A_ w);	2164	ev_stat_stat (EV_A_ w);
1680		2165
1681	if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))	2166	/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
		2167	if (
		2168	w->prev.st_dev != w->attr.st_dev
		2169	|| w->prev.st_ino != w->attr.st_ino
		2170	|| w->prev.st_mode != w->attr.st_mode
		2171	|| w->prev.st_nlink != w->attr.st_nlink
		2172	|| w->prev.st_uid != w->attr.st_uid
		2173	|| w->prev.st_gid != w->attr.st_gid
		2174	|| w->prev.st_rdev != w->attr.st_rdev
		2175	|| w->prev.st_size != w->attr.st_size
		2176	|| w->prev.st_atime != w->attr.st_atime
		2177	|| w->prev.st_mtime != w->attr.st_mtime
		2178	|| w->prev.st_ctime != w->attr.st_ctime
		2179	) {
		2180	#if EV_USE_INOTIFY
		2181	infy_del (EV_A_ w);
		2182	infy_add (EV_A_ w);
		2183	ev_stat_stat (EV_A_ w); /* avoid race... */
		2184	#endif
		2185
1682	ev_feed_event (EV_A_ w, EV_STAT);	2186	ev_feed_event (EV_A_ w, EV_STAT);
		2187	}
1683	}	2188	}
1684		2189
1685	void	2190	void
1686	ev_stat_start (EV_P_ ev_stat *w)	2191	ev_stat_start (EV_P_ ev_stat *w)
1687	{	2192	{
…		…
1697	if (w->interval < MIN_STAT_INTERVAL)	2202	if (w->interval < MIN_STAT_INTERVAL)
1698	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;	2203	w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1699		2204
1700	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);	2205	ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1701	ev_set_priority (&w->timer, ev_priority (w));	2206	ev_set_priority (&w->timer, ev_priority (w));
		2207
		2208	#if EV_USE_INOTIFY
		2209	infy_init (EV_A);
		2210
		2211	if (fs_fd >= 0)
		2212	infy_add (EV_A_ w);
		2213	else
		2214	#endif
1702	ev_timer_start (EV_A_ &w->timer);	2215	ev_timer_start (EV_A_ &w->timer);
1703		2216
1704	ev_start (EV_A_ (W)w, 1);	2217	ev_start (EV_A_ (W)w, 1);
1705	}	2218	}
1706		2219
1707	void	2220	void
1708	ev_stat_stop (EV_P_ ev_stat *w)	2221	ev_stat_stop (EV_P_ ev_stat *w)
1709	{	2222	{
1710	ev_clear_pending (EV_A_ (W)w);	2223	clear_pending (EV_A_ (W)w);
1711	if (expect_false (!ev_is_active (w)))	2224	if (expect_false (!ev_is_active (w)))
1712	return;	2225	return;
1713		2226
		2227	#if EV_USE_INOTIFY
		2228	infy_del (EV_A_ w);
		2229	#endif
1714	ev_timer_stop (EV_A_ &w->timer);	2230	ev_timer_stop (EV_A_ &w->timer);
1715		2231
1716	ev_stop (EV_A_ (W)w);	2232	ev_stop (EV_A_ (W)w);
1717	}	2233	}
1718	#endif	2234	#endif
1719		2235
		2236	#if EV_IDLE_ENABLE
1720	void	2237	void
1721	ev_idle_start (EV_P_ ev_idle *w)	2238	ev_idle_start (EV_P_ ev_idle *w)
1722	{	2239	{
1723	if (expect_false (ev_is_active (w)))	2240	if (expect_false (ev_is_active (w)))
1724	return;	2241	return;
1725		2242
		2243	pri_adjust (EV_A_ (W)w);
		2244
		2245	{
		2246	int active = ++idlecnt [ABSPRI (w)];
		2247
		2248	++idleall;
1726	ev_start (EV_A_ (W)w, ++idlecnt);	2249	ev_start (EV_A_ (W)w, active);
		2250
1727	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);	2251	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
1728	idles [idlecnt - 1] = w;	2252	idles [ABSPRI (w)][active - 1] = w;
		2253	}
1729	}	2254	}
1730		2255
1731	void	2256	void
1732	ev_idle_stop (EV_P_ ev_idle *w)	2257	ev_idle_stop (EV_P_ ev_idle *w)
1733	{	2258	{
1734	ev_clear_pending (EV_A_ (W)w);	2259	clear_pending (EV_A_ (W)w);
1735	if (expect_false (!ev_is_active (w)))	2260	if (expect_false (!ev_is_active (w)))
1736	return;	2261	return;
1737		2262
1738	{	2263	{
1739	int active = ((W)w)->active;	2264	int active = ((W)w)->active;
1740	idles [active - 1] = idles [--idlecnt];	2265
		2266	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
1741	((W)idles [active - 1])->active = active;	2267	((W)idles [ABSPRI (w)][active - 1])->active = active;
		2268
		2269	ev_stop (EV_A_ (W)w);
		2270	--idleall;
1742	}	2271	}
1743
1744	ev_stop (EV_A_ (W)w);
1745	}	2272	}
		2273	#endif
1746		2274
1747	void	2275	void
1748	ev_prepare_start (EV_P_ ev_prepare *w)	2276	ev_prepare_start (EV_P_ ev_prepare *w)
1749	{	2277	{
1750	if (expect_false (ev_is_active (w)))	2278	if (expect_false (ev_is_active (w)))
…		…
1756	}	2284	}
1757		2285
1758	void	2286	void
1759	ev_prepare_stop (EV_P_ ev_prepare *w)	2287	ev_prepare_stop (EV_P_ ev_prepare *w)
1760	{	2288	{
1761	ev_clear_pending (EV_A_ (W)w);	2289	clear_pending (EV_A_ (W)w);
1762	if (expect_false (!ev_is_active (w)))	2290	if (expect_false (!ev_is_active (w)))
1763	return;	2291	return;
1764		2292
1765	{	2293	{
1766	int active = ((W)w)->active;	2294	int active = ((W)w)->active;
…		…
1783	}	2311	}
1784		2312
1785	void	2313	void
1786	ev_check_stop (EV_P_ ev_check *w)	2314	ev_check_stop (EV_P_ ev_check *w)
1787	{	2315	{
1788	ev_clear_pending (EV_A_ (W)w);	2316	clear_pending (EV_A_ (W)w);
1789	if (expect_false (!ev_is_active (w)))	2317	if (expect_false (!ev_is_active (w)))
1790	return;	2318	return;
1791		2319
1792	{	2320	{
1793	int active = ((W)w)->active;	2321	int active = ((W)w)->active;
…		…
1800		2328
1801	#if EV_EMBED_ENABLE	2329	#if EV_EMBED_ENABLE
1802	void noinline	2330	void noinline
1803	ev_embed_sweep (EV_P_ ev_embed *w)	2331	ev_embed_sweep (EV_P_ ev_embed *w)
1804	{	2332	{
1805	ev_loop (w->loop, EVLOOP_NONBLOCK);	2333	ev_loop (w->other, EVLOOP_NONBLOCK);
1806	}	2334	}
1807		2335
1808	static void	2336	static void
1809	embed_cb (EV_P_ ev_io *io, int revents)	2337	embed_io_cb (EV_P_ ev_io *io, int revents)
1810	{	2338	{
1811	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2339	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1812		2340
1813	if (ev_cb (w))	2341	if (ev_cb (w))
1814	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2342	ev_feed_event (EV_A_ (W)w, EV_EMBED);
1815	else	2343	else
1816	ev_embed_sweep (loop, w);	2344	ev_loop (w->other, EVLOOP_NONBLOCK);
1817	}	2345	}
		2346
		2347	static void
		2348	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2349	{
		2350	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
		2351
		2352	{
		2353	struct ev_loop *loop = w->other;
		2354
		2355	while (fdchangecnt)
		2356	{
		2357	fd_reify (EV_A);
		2358	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2359	}
		2360	}
		2361	}
		2362
		2363	#if 0
		2364	static void
		2365	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2366	{
		2367	ev_idle_stop (EV_A_ idle);
		2368	}
		2369	#endif
1818		2370
1819	void	2371	void
1820	ev_embed_start (EV_P_ ev_embed *w)	2372	ev_embed_start (EV_P_ ev_embed *w)
1821	{	2373	{
1822	if (expect_false (ev_is_active (w)))	2374	if (expect_false (ev_is_active (w)))
1823	return;	2375	return;
1824		2376
1825	{	2377	{
1826	struct ev_loop *loop = w->loop;	2378	struct ev_loop *loop = w->other;
1827	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2379	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1828	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2380	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
1829	}	2381	}
1830		2382
1831	ev_set_priority (&w->io, ev_priority (w));	2383	ev_set_priority (&w->io, ev_priority (w));
1832	ev_io_start (EV_A_ &w->io);	2384	ev_io_start (EV_A_ &w->io);
1833		2385
		2386	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2387	ev_set_priority (&w->prepare, EV_MINPRI);
		2388	ev_prepare_start (EV_A_ &w->prepare);
		2389
		2390	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2391
1834	ev_start (EV_A_ (W)w, 1);	2392	ev_start (EV_A_ (W)w, 1);
1835	}	2393	}
1836		2394
1837	void	2395	void
1838	ev_embed_stop (EV_P_ ev_embed *w)	2396	ev_embed_stop (EV_P_ ev_embed *w)
1839	{	2397	{
1840	ev_clear_pending (EV_A_ (W)w);	2398	clear_pending (EV_A_ (W)w);
1841	if (expect_false (!ev_is_active (w)))	2399	if (expect_false (!ev_is_active (w)))
1842	return;	2400	return;
1843		2401
1844	ev_io_stop (EV_A_ &w->io);	2402	ev_io_stop (EV_A_ &w->io);
		2403	ev_prepare_stop (EV_A_ &w->prepare);
1845		2404
1846	ev_stop (EV_A_ (W)w);	2405	ev_stop (EV_A_ (W)w);
1847	}	2406	}
1848	#endif	2407	#endif
1849		2408
…		…
1860	}	2419	}
1861		2420
1862	void	2421	void
1863	ev_fork_stop (EV_P_ ev_fork *w)	2422	ev_fork_stop (EV_P_ ev_fork *w)
1864	{	2423	{
1865	ev_clear_pending (EV_A_ (W)w);	2424	clear_pending (EV_A_ (W)w);
1866	if (expect_false (!ev_is_active (w)))	2425	if (expect_false (!ev_is_active (w)))
1867	return;	2426	return;
1868		2427
1869	{	2428	{
1870	int active = ((W)w)->active;	2429	int active = ((W)w)->active;
…		…
1874		2433
1875	ev_stop (EV_A_ (W)w);	2434	ev_stop (EV_A_ (W)w);
1876	}	2435	}
1877	#endif	2436	#endif
1878		2437
		2438	#if EV_ASYNC_ENABLE
		2439	void
		2440	ev_async_start (EV_P_ ev_async *w)
		2441	{
		2442	if (expect_false (ev_is_active (w)))
		2443	return;
		2444
		2445	evpipe_init (EV_A);
		2446
		2447	ev_start (EV_A_ (W)w, ++asynccnt);
		2448	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2449	asyncs [asynccnt - 1] = w;
		2450	}
		2451
		2452	void
		2453	ev_async_stop (EV_P_ ev_async *w)
		2454	{
		2455	clear_pending (EV_A_ (W)w);
		2456	if (expect_false (!ev_is_active (w)))
		2457	return;
		2458
		2459	{
		2460	int active = ((W)w)->active;
		2461	asyncs [active - 1] = asyncs [--asynccnt];
		2462	((W)asyncs [active - 1])->active = active;
		2463	}
		2464
		2465	ev_stop (EV_A_ (W)w);
		2466	}
		2467
		2468	void
		2469	ev_async_send (EV_P_ ev_async *w)
		2470	{
		2471	w->sent = 1;
		2472	evpipe_write (EV_A_ &gotasync);
		2473	}
		2474	#endif
		2475
1879	/*****************************************************************************/	2476	/*****************************************************************************/
1880		2477
1881	struct ev_once	2478	struct ev_once
1882	{	2479	{
1883	ev_io io;	2480	ev_io io;
…		…
1938	ev_timer_set (&once->to, timeout, 0.);	2535	ev_timer_set (&once->to, timeout, 0.);
1939	ev_timer_start (EV_A_ &once->to);	2536	ev_timer_start (EV_A_ &once->to);
1940	}	2537	}
1941	}	2538	}
1942		2539
		2540	#if EV_MULTIPLICITY
		2541	#include "ev_wrap.h"
		2542	#endif
		2543
1943	#ifdef __cplusplus	2544	#ifdef __cplusplus
1944	}	2545	}
1945	#endif	2546	#endif
1946		2547

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