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Comparing libev/ev.c (file contents):
Revision 1.190 by root, Fri Dec 21 01:26:04 2007 UTC vs.
Revision 1.247 by root, Wed May 21 21:22:10 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
35		43
		44	/* this big block deduces configuration from config.h */
36	#ifndef EV_STANDALONE	45	#ifndef EV_STANDALONE
37	# ifdef EV_CONFIG_H	46	# ifdef EV_CONFIG_H
38	# include EV_CONFIG_H	47	# include EV_CONFIG_H
39	# else	48	# else
40	# include "config.h"	49	# include "config.h"
…		…
51	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
52	# define EV_USE_MONOTONIC 0	61	# define EV_USE_MONOTONIC 0
53	# endif	62	# endif
54	# ifndef EV_USE_REALTIME	63	# ifndef EV_USE_REALTIME
55	# define EV_USE_REALTIME 0	64	# define EV_USE_REALTIME 0
		65	# endif
		66	# endif
		67
		68	# ifndef EV_USE_NANOSLEEP
		69	# if HAVE_NANOSLEEP
		70	# define EV_USE_NANOSLEEP 1
		71	# else
		72	# define EV_USE_NANOSLEEP 0
56	# endif	73	# endif
57	# endif	74	# endif
58		75
59	# ifndef EV_USE_SELECT	76	# ifndef EV_USE_SELECT
60	# if HAVE_SELECT && HAVE_SYS_SELECT_H	77	# if HAVE_SELECT && HAVE_SYS_SELECT_H
…		…
102	# else	119	# else
103	# define EV_USE_INOTIFY 0	120	# define EV_USE_INOTIFY 0
104	# endif	121	# endif
105	# endif	122	# endif
106		123
		124	# ifndef EV_USE_EVENTFD
		125	# if HAVE_EVENTFD
		126	# define EV_USE_EVENTFD 1
		127	# else
		128	# define EV_USE_EVENTFD 0
		129	# endif
		130	# endif
		131
107	#endif	132	#endif
108		133
109	#include <math.h>	134	#include <math.h>
110	#include <stdlib.h>	135	#include <stdlib.h>
111	#include <fcntl.h>	136	#include <fcntl.h>
…		…
136	# ifndef EV_SELECT_IS_WINSOCKET	161	# ifndef EV_SELECT_IS_WINSOCKET
137	# define EV_SELECT_IS_WINSOCKET 1	162	# define EV_SELECT_IS_WINSOCKET 1
138	# endif	163	# endif
139	#endif	164	#endif
140		165
141	/**/	166	/* this block tries to deduce configuration from header-defined symbols and defaults */
142		167
143	#ifndef EV_USE_MONOTONIC	168	#ifndef EV_USE_MONOTONIC
144	# define EV_USE_MONOTONIC 0	169	# define EV_USE_MONOTONIC 0
145	#endif	170	#endif
146		171
147	#ifndef EV_USE_REALTIME	172	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	173	# define EV_USE_REALTIME 0
		174	#endif
		175
		176	#ifndef EV_USE_NANOSLEEP
		177	# define EV_USE_NANOSLEEP 0
149	#endif	178	#endif
150		179
151	#ifndef EV_USE_SELECT	180	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	181	# define EV_USE_SELECT 1
153	#endif	182	#endif
…		…
159	# define EV_USE_POLL 1	188	# define EV_USE_POLL 1
160	# endif	189	# endif
161	#endif	190	#endif
162		191
163	#ifndef EV_USE_EPOLL	192	#ifndef EV_USE_EPOLL
		193	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		194	# define EV_USE_EPOLL 1
		195	# else
164	# define EV_USE_EPOLL 0	196	# define EV_USE_EPOLL 0
		197	# endif
165	#endif	198	#endif
166		199
167	#ifndef EV_USE_KQUEUE	200	#ifndef EV_USE_KQUEUE
168	# define EV_USE_KQUEUE 0	201	# define EV_USE_KQUEUE 0
169	#endif	202	#endif
…		…
171	#ifndef EV_USE_PORT	204	#ifndef EV_USE_PORT
172	# define EV_USE_PORT 0	205	# define EV_USE_PORT 0
173	#endif	206	#endif
174		207
175	#ifndef EV_USE_INOTIFY	208	#ifndef EV_USE_INOTIFY
		209	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		210	# define EV_USE_INOTIFY 1
		211	# else
176	# define EV_USE_INOTIFY 0	212	# define EV_USE_INOTIFY 0
		213	# endif
177	#endif	214	#endif
178		215
179	#ifndef EV_PID_HASHSIZE	216	#ifndef EV_PID_HASHSIZE
180	# if EV_MINIMAL	217	# if EV_MINIMAL
181	# define EV_PID_HASHSIZE 1	218	# define EV_PID_HASHSIZE 1
…		…
190	# else	227	# else
191	# define EV_INOTIFY_HASHSIZE 16	228	# define EV_INOTIFY_HASHSIZE 16
192	# endif	229	# endif
193	#endif	230	#endif
194		231
195	/**/	232	#ifndef EV_USE_EVENTFD
		233	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		234	# define EV_USE_EVENTFD 1
		235	# else
		236	# define EV_USE_EVENTFD 0
		237	# endif
		238	#endif
		239
		240	#ifndef EV_USE_4HEAP
		241	# define EV_USE_4HEAP !EV_MINIMAL
		242	#endif
		243
		244	#ifndef EV_HEAP_CACHE_AT
		245	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		246	#endif
		247
		248	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		249
197	#ifndef CLOCK_MONOTONIC	250	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	251	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	252	# define EV_USE_MONOTONIC 0
200	#endif	253	#endif
…		…
207	#if !EV_STAT_ENABLE	260	#if !EV_STAT_ENABLE
208	# undef EV_USE_INOTIFY	261	# undef EV_USE_INOTIFY
209	# define EV_USE_INOTIFY 0	262	# define EV_USE_INOTIFY 0
210	#endif	263	#endif
211		264
		265	#if !EV_USE_NANOSLEEP
		266	# ifndef _WIN32
		267	# include <sys/select.h>
		268	# endif
		269	#endif
		270
212	#if EV_USE_INOTIFY	271	#if EV_USE_INOTIFY
213	# include <sys/inotify.h>	272	# include <sys/inotify.h>
214	#endif	273	#endif
215		274
216	#if EV_SELECT_IS_WINSOCKET	275	#if EV_SELECT_IS_WINSOCKET
217	# include <winsock.h>	276	# include <winsock.h>
		277	#endif
		278
		279	#if EV_USE_EVENTFD
		280	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		281	# include <stdint.h>
		282	# ifdef __cplusplus
		283	extern "C" {
		284	# endif
		285	int eventfd (unsigned int initval, int flags);
		286	# ifdef __cplusplus
		287	}
		288	# endif
218	#endif	289	#endif
219		290
220	/**/	291	/**/
221		292
222	/*	293	/*
…		…
237	# define expect(expr,value) __builtin_expect ((expr),(value))	308	# define expect(expr,value) __builtin_expect ((expr),(value))
238	# define noinline __attribute__ ((noinline))	309	# define noinline __attribute__ ((noinline))
239	#else	310	#else
240	# define expect(expr,value) (expr)	311	# define expect(expr,value) (expr)
241	# define noinline	312	# define noinline
242	# if __STDC_VERSION__ < 199901L	313	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
243	# define inline	314	# define inline
244	# endif	315	# endif
245	#endif	316	#endif
246		317
247	#define expect_false(expr) expect ((expr) != 0, 0)	318	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
262		333
263	typedef ev_watcher *W;	334	typedef ev_watcher *W;
264	typedef ev_watcher_list *WL;	335	typedef ev_watcher_list *WL;
265	typedef ev_watcher_time *WT;	336	typedef ev_watcher_time *WT;
266		337
		338	#define ev_active(w) ((W)(w))->active
		339	#define ev_at(w) ((WT)(w))->at
		340
		341	#if EV_USE_MONOTONIC
		342	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		343	/* giving it a reasonably high chance of working on typical architetcures */
267	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	344	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		345	#endif
268		346
269	#ifdef _WIN32	347	#ifdef _WIN32
270	# include "ev_win32.c"	348	# include "ev_win32.c"
271	#endif	349	#endif
272		350
…		…
293	perror (msg);	371	perror (msg);
294	abort ();	372	abort ();
295	}	373	}
296	}	374	}
297		375
		376	static void *
		377	ev_realloc_emul (void *ptr, long size)
		378	{
		379	/* some systems, notably openbsd and darwin, fail to properly
		380	* implement realloc (x, 0) (as required by both ansi c-98 and
		381	* the single unix specification, so work around them here.
		382	*/
		383
		384	if (size)
		385	return realloc (ptr, size);
		386
		387	free (ptr);
		388	return 0;
		389	}
		390
298	static void *(*alloc)(void *ptr, long size);	391	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
299		392
300	void	393	void
301	ev_set_allocator (void *(*cb)(void *ptr, long size))	394	ev_set_allocator (void *(*cb)(void *ptr, long size))
302	{	395	{
303	alloc = cb;	396	alloc = cb;
304	}	397	}
305		398
306	inline_speed void *	399	inline_speed void *
307	ev_realloc (void *ptr, long size)	400	ev_realloc (void *ptr, long size)
308	{	401	{
309	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	402	ptr = alloc (ptr, size);
310		403
311	if (!ptr && size)	404	if (!ptr && size)
312	{	405	{
313	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	406	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314	abort ();	407	abort ();
…		…
337	W w;	430	W w;
338	int events;	431	int events;
339	} ANPENDING;	432	} ANPENDING;
340		433
341	#if EV_USE_INOTIFY	434	#if EV_USE_INOTIFY
		435	/* hash table entry per inotify-id */
342	typedef struct	436	typedef struct
343	{	437	{
344	WL head;	438	WL head;
345	} ANFS;	439	} ANFS;
		440	#endif
		441
		442	/* Heap Entry */
		443	#if EV_HEAP_CACHE_AT
		444	typedef struct {
		445	ev_tstamp at;
		446	WT w;
		447	} ANHE;
		448
		449	#define ANHE_w(he) (he).w /* access watcher, read-write */
		450	#define ANHE_at(he) (he).at /* access cached at, read-only */
		451	#define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */
		452	#else
		453	typedef WT ANHE;
		454
		455	#define ANHE_w(he) (he)
		456	#define ANHE_at(he) (he)->at
		457	#define ANHE_at_set(he)
346	#endif	458	#endif
347		459
348	#if EV_MULTIPLICITY	460	#if EV_MULTIPLICITY
349		461
350	struct ev_loop	462	struct ev_loop
…		…
408	{	520	{
409	return ev_rt_now;	521	return ev_rt_now;
410	}	522	}
411	#endif	523	#endif
412		524
		525	void
		526	ev_sleep (ev_tstamp delay)
		527	{
		528	if (delay > 0.)
		529	{
		530	#if EV_USE_NANOSLEEP
		531	struct timespec ts;
		532
		533	ts.tv_sec = (time_t)delay;
		534	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		535
		536	nanosleep (&ts, 0);
		537	#elif defined(_WIN32)
		538	Sleep ((unsigned long)(delay * 1e3));
		539	#else
		540	struct timeval tv;
		541
		542	tv.tv_sec = (time_t)delay;
		543	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		544
		545	select (0, 0, 0, 0, &tv);
		546	#endif
		547	}
		548	}
		549
		550	/*****************************************************************************/
		551
		552	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
		553
413	int inline_size	554	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	555	array_nextsize (int elem, int cur, int cnt)
415	{	556	{
416	int ncur = cur + 1;	557	int ncur = cur + 1;
417		558
418	do	559	do
419	ncur <<= 1;	560	ncur <<= 1;
420	while (cnt > ncur);	561	while (cnt > ncur);
421		562
422	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */	563	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
423	if (elem * ncur > 4096)	564	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
424	{	565	{
425	ncur *= elem;	566	ncur *= elem;
426	ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;	567	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
427	ncur = ncur - sizeof (void *) * 4;	568	ncur = ncur - sizeof (void *) * 4;
428	ncur /= elem;	569	ncur /= elem;
429	}	570	}
430		571
431	return ncur;	572	return ncur;
…		…
543		684
544	#if EV_SELECT_IS_WINSOCKET	685	#if EV_SELECT_IS_WINSOCKET
545	if (events)	686	if (events)
546	{	687	{
547	unsigned long argp;	688	unsigned long argp;
		689	#ifdef EV_FD_TO_WIN32_HANDLE
		690	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		691	#else
548	anfd->handle = _get_osfhandle (fd);	692	anfd->handle = _get_osfhandle (fd);
		693	#endif
549	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	694	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550	}	695	}
551	#endif	696	#endif
552		697
553	{	698	{
…		…
641	}	786	}
642	}	787	}
643		788
644	/*****************************************************************************/	789	/*****************************************************************************/
645		790
		791	/*
		792	* the heap functions want a real array index. array index 0 uis guaranteed to not
		793	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		794	* the branching factor of the d-tree.
		795	*/
		796
		797	/*
		798	* at the moment we allow libev the luxury of two heaps,
		799	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
		800	* which is more cache-efficient.
		801	* the difference is about 5% with 50000+ watchers.
		802	*/
		803	#if EV_USE_4HEAP
		804
		805	#define DHEAP 4
		806	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		807	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		808
		809	/* towards the root */
646	void inline_speed	810	void inline_speed
647	upheap (WT *heap, int k)	811	upheap (ANHE *heap, int k)
648	{	812	{
649	WT w = heap [k];	813	ANHE he = heap [k];
650		814
651	while (k)	815	for (;;)
652	{	816	{
653	int p = (k - 1) >> 1;	817	int p = HPARENT (k);
654		818
655	if (heap [p]->at <= w->at)	819	if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
656	break;	820	break;
657		821
658	heap [k] = heap [p];	822	heap [k] = heap [p];
659	((W)heap [k])->active = k + 1;	823	ev_active (ANHE_w (heap [k])) = k;
660	k = p;	824	k = p;
661	}	825	}
662		826
663	heap [k] = w;	827	heap [k] = he;
664	((W)heap [k])->active = k + 1;	828	ev_active (ANHE_w (he)) = k;
665	}	829	}
666		830
		831	/* away from the root */
667	void inline_speed	832	void inline_speed
668	downheap (WT *heap, int N, int k)	833	downheap (ANHE *heap, int N, int k)
669	{	834	{
670	WT w = heap [k];	835	ANHE he = heap [k];
		836	ANHE *E = heap + N + HEAP0;
671		837
672	for (;;)	838	for (;;)
673	{	839	{
674	int c = (k << 1) + 1;	840	ev_tstamp minat;
		841	ANHE *minpos;
		842	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0;
675		843
676	if (c >= N)	844	// find minimum child
		845	if (expect_true (pos + DHEAP - 1 < E))
		846	{
		847	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		848	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		849	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		850	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		851	}
		852	else if (pos < E)
		853	{
		854	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
		855	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		856	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		857	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		858	}
		859	else
677	break;	860	break;
678		861
		862	if (ANHE_at (he) <= minat)
		863	break;
		864
		865	heap [k] = *minpos;
		866	ev_active (ANHE_w (*minpos)) = k;
		867
		868	k = minpos - heap;
		869	}
		870
		871	heap [k] = he;
		872	ev_active (ANHE_w (he)) = k;
		873	}
		874
		875	#else // 4HEAP
		876
		877	#define HEAP0 1
		878	#define HPARENT(k) ((k) >> 1)
		879
		880	/* towards the root */
		881	void inline_speed
		882	upheap (ANHE *heap, int k)
		883	{
		884	ANHE he = heap [k];
		885
		886	for (;;)
		887	{
		888	int p = HPARENT (k);
		889
		890	/* maybe we could use a dummy element at heap [0]? */
		891	if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
		892	break;
		893
		894	heap [k] = heap [p];
		895	ev_active (ANHE_w (heap [k])) = k;
		896	k = p;
		897	}
		898
		899	heap [k] = he;
		900	ev_active (ANHE_w (heap [k])) = k;
		901	}
		902
		903	/* away from the root */
		904	void inline_speed
		905	downheap (ANHE *heap, int N, int k)
		906	{
		907	ANHE he = heap [k];
		908
		909	for (;;)
		910	{
		911	int c = k << 1;
		912
		913	if (c > N)
		914	break;
		915
679	c += c + 1 < N && heap [c]->at > heap [c + 1]->at	916	c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
680	? 1 : 0;	917	? 1 : 0;
681		918
682	if (w->at <= heap [c]->at)	919	if (ANHE_at (he) <= ANHE_at (heap [c]))
683	break;	920	break;
684		921
685	heap [k] = heap [c];	922	heap [k] = heap [c];
686	((W)heap [k])->active = k + 1;	923	ev_active (ANHE_w (heap [k])) = k;
687		924
688	k = c;	925	k = c;
689	}	926	}
690		927
691	heap [k] = w;	928	heap [k] = he;
692	((W)heap [k])->active = k + 1;	929	ev_active (ANHE_w (he)) = k;
693	}	930	}
		931	#endif
694		932
695	void inline_size	933	void inline_size
696	adjustheap (WT *heap, int N, int k)	934	adjustheap (ANHE *heap, int N, int k)
697	{	935	{
		936	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
698	upheap (heap, k);	937	upheap (heap, k);
		938	else
699	downheap (heap, N, k);	939	downheap (heap, N, k);
700	}	940	}
701		941
702	/*****************************************************************************/	942	/*****************************************************************************/
703		943
704	typedef struct	944	typedef struct
705	{	945	{
706	WL head;	946	WL head;
707	sig_atomic_t volatile gotsig;	947	EV_ATOMIC_T gotsig;
708	} ANSIG;	948	} ANSIG;
709		949
710	static ANSIG *signals;	950	static ANSIG *signals;
711	static int signalmax;	951	static int signalmax;
712		952
713	static int sigpipe [2];	953	static EV_ATOMIC_T gotsig;
714	static sig_atomic_t volatile gotsig;
715	static ev_io sigev;
716		954
717	void inline_size	955	void inline_size
718	signals_init (ANSIG *base, int count)	956	signals_init (ANSIG *base, int count)
719	{	957	{
720	while (count--)	958	while (count--)
…		…
724		962
725	++base;	963	++base;
726	}	964	}
727	}	965	}
728		966
729	static void	967	/*****************************************************************************/
730	sighandler (int signum)
731	{
732	#if _WIN32
733	signal (signum, sighandler);
734	#endif
735
736	signals [signum - 1].gotsig = 1;
737
738	if (!gotsig)
739	{
740	int old_errno = errno;
741	gotsig = 1;
742	write (sigpipe [1], &signum, 1);
743	errno = old_errno;
744	}
745	}
746
747	void noinline
748	ev_feed_signal_event (EV_P_ int signum)
749	{
750	WL w;
751
752	#if EV_MULTIPLICITY
753	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
754	#endif
755
756	--signum;
757
758	if (signum < 0 || signum >= signalmax)
759	return;
760
761	signals [signum].gotsig = 0;
762
763	for (w = signals [signum].head; w; w = w->next)
764	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
765	}
766
767	static void
768	sigcb (EV_P_ ev_io *iow, int revents)
769	{
770	int signum;
771
772	read (sigpipe [0], &revents, 1);
773	gotsig = 0;
774
775	for (signum = signalmax; signum--; )
776	if (signals [signum].gotsig)
777	ev_feed_signal_event (EV_A_ signum + 1);
778	}
779		968
780	void inline_speed	969	void inline_speed
781	fd_intern (int fd)	970	fd_intern (int fd)
782	{	971	{
783	#ifdef _WIN32	972	#ifdef _WIN32
…		…
788	fcntl (fd, F_SETFL, O_NONBLOCK);	977	fcntl (fd, F_SETFL, O_NONBLOCK);
789	#endif	978	#endif
790	}	979	}
791		980
792	static void noinline	981	static void noinline
793	siginit (EV_P)	982	evpipe_init (EV_P)
794	{	983	{
		984	if (!ev_is_active (&pipeev))
		985	{
		986	#if EV_USE_EVENTFD
		987	if ((evfd = eventfd (0, 0)) >= 0)
		988	{
		989	evpipe [0] = -1;
		990	fd_intern (evfd);
		991	ev_io_set (&pipeev, evfd, EV_READ);
		992	}
		993	else
		994	#endif
		995	{
		996	while (pipe (evpipe))
		997	syserr ("(libev) error creating signal/async pipe");
		998
795	fd_intern (sigpipe [0]);	999	fd_intern (evpipe [0]);
796	fd_intern (sigpipe [1]);	1000	fd_intern (evpipe [1]);
		1001	ev_io_set (&pipeev, evpipe [0], EV_READ);
		1002	}
797		1003
798	ev_io_set (&sigev, sigpipe [0], EV_READ);
799	ev_io_start (EV_A_ &sigev);	1004	ev_io_start (EV_A_ &pipeev);
800	ev_unref (EV_A); /* child watcher should not keep loop alive */	1005	ev_unref (EV_A); /* watcher should not keep loop alive */
		1006	}
		1007	}
		1008
		1009	void inline_size
		1010	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1011	{
		1012	if (!*flag)
		1013	{
		1014	int old_errno = errno; /* save errno because write might clobber it */
		1015
		1016	*flag = 1;
		1017
		1018	#if EV_USE_EVENTFD
		1019	if (evfd >= 0)
		1020	{
		1021	uint64_t counter = 1;
		1022	write (evfd, &counter, sizeof (uint64_t));
		1023	}
		1024	else
		1025	#endif
		1026	write (evpipe [1], &old_errno, 1);
		1027
		1028	errno = old_errno;
		1029	}
		1030	}
		1031
		1032	static void
		1033	pipecb (EV_P_ ev_io *iow, int revents)
		1034	{
		1035	#if EV_USE_EVENTFD
		1036	if (evfd >= 0)
		1037	{
		1038	uint64_t counter;
		1039	read (evfd, &counter, sizeof (uint64_t));
		1040	}
		1041	else
		1042	#endif
		1043	{
		1044	char dummy;
		1045	read (evpipe [0], &dummy, 1);
		1046	}
		1047
		1048	if (gotsig && ev_is_default_loop (EV_A))
		1049	{
		1050	int signum;
		1051	gotsig = 0;
		1052
		1053	for (signum = signalmax; signum--; )
		1054	if (signals [signum].gotsig)
		1055	ev_feed_signal_event (EV_A_ signum + 1);
		1056	}
		1057
		1058	#if EV_ASYNC_ENABLE
		1059	if (gotasync)
		1060	{
		1061	int i;
		1062	gotasync = 0;
		1063
		1064	for (i = asynccnt; i--; )
		1065	if (asyncs [i]->sent)
		1066	{
		1067	asyncs [i]->sent = 0;
		1068	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		1069	}
		1070	}
		1071	#endif
801	}	1072	}
802		1073
803	/*****************************************************************************/	1074	/*****************************************************************************/
804		1075
		1076	static void
		1077	ev_sighandler (int signum)
		1078	{
		1079	#if EV_MULTIPLICITY
		1080	struct ev_loop *loop = &default_loop_struct;
		1081	#endif
		1082
		1083	#if _WIN32
		1084	signal (signum, ev_sighandler);
		1085	#endif
		1086
		1087	signals [signum - 1].gotsig = 1;
		1088	evpipe_write (EV_A_ &gotsig);
		1089	}
		1090
		1091	void noinline
		1092	ev_feed_signal_event (EV_P_ int signum)
		1093	{
		1094	WL w;
		1095
		1096	#if EV_MULTIPLICITY
		1097	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		1098	#endif
		1099
		1100	--signum;
		1101
		1102	if (signum < 0 || signum >= signalmax)
		1103	return;
		1104
		1105	signals [signum].gotsig = 0;
		1106
		1107	for (w = signals [signum].head; w; w = w->next)
		1108	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		1109	}
		1110
		1111	/*****************************************************************************/
		1112
805	static WL childs [EV_PID_HASHSIZE];	1113	static WL childs [EV_PID_HASHSIZE];
806		1114
807	#ifndef _WIN32	1115	#ifndef _WIN32
808		1116
809	static ev_signal childev;	1117	static ev_signal childev;
810		1118
		1119	#ifndef WIFCONTINUED
		1120	# define WIFCONTINUED(status) 0
		1121	#endif
		1122
811	void inline_speed	1123	void inline_speed
812	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1124	child_reap (EV_P_ int chain, int pid, int status)
813	{	1125	{
814	ev_child *w;	1126	ev_child *w;
		1127	int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
815		1128
816	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)	1129	for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
		1130	{
817	if (w->pid == pid || !w->pid)	1131	if ((w->pid == pid || !w->pid)
		1132	&& (!traced || (w->flags & 1)))
818	{	1133	{
819	ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */	1134	ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
820	w->rpid = pid;	1135	w->rpid = pid;
821	w->rstatus = status;	1136	w->rstatus = status;
822	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1137	ev_feed_event (EV_A_ (W)w, EV_CHILD);
823	}	1138	}
		1139	}
824	}	1140	}
825		1141
826	#ifndef WCONTINUED	1142	#ifndef WCONTINUED
827	# define WCONTINUED 0	1143	# define WCONTINUED 0
828	#endif	1144	#endif
…		…
837	if (!WCONTINUED	1153	if (!WCONTINUED
838	|| errno != EINVAL	1154	|| errno != EINVAL
839	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))	1155	|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840	return;	1156	return;
841		1157
842	/* make sure we are called again until all childs have been reaped */	1158	/* make sure we are called again until all children have been reaped */
843	/* we need to do it this way so that the callback gets called before we continue */	1159	/* we need to do it this way so that the callback gets called before we continue */
844	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	1160	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
845		1161
846	child_reap (EV_A_ sw, pid, pid, status);	1162	child_reap (EV_A_ pid, pid, status);
847	if (EV_PID_HASHSIZE > 1)	1163	if (EV_PID_HASHSIZE > 1)
848	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */	1164	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
849	}	1165	}
850		1166
851	#endif	1167	#endif
852		1168
853	/*****************************************************************************/	1169	/*****************************************************************************/
…		…
925	}	1241	}
926		1242
927	unsigned int	1243	unsigned int
928	ev_embeddable_backends (void)	1244	ev_embeddable_backends (void)
929	{	1245	{
930	return EVBACKEND_EPOLL	1246	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
931	| EVBACKEND_KQUEUE	1247
932	| EVBACKEND_PORT;	1248	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1249	/* please fix it and tell me how to detect the fix */
		1250	flags &= ~EVBACKEND_EPOLL;
		1251
		1252	return flags;
933	}	1253	}
934		1254
935	unsigned int	1255	unsigned int
936	ev_backend (EV_P)	1256	ev_backend (EV_P)
937	{	1257	{
…		…
940		1260
941	unsigned int	1261	unsigned int
942	ev_loop_count (EV_P)	1262	ev_loop_count (EV_P)
943	{	1263	{
944	return loop_count;	1264	return loop_count;
		1265	}
		1266
		1267	void
		1268	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1269	{
		1270	io_blocktime = interval;
		1271	}
		1272
		1273	void
		1274	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1275	{
		1276	timeout_blocktime = interval;
945	}	1277	}
946		1278
947	static void noinline	1279	static void noinline
948	loop_init (EV_P_ unsigned int flags)	1280	loop_init (EV_P_ unsigned int flags)
949	{	1281	{
…		…
955	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1287	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
956	have_monotonic = 1;	1288	have_monotonic = 1;
957	}	1289	}
958	#endif	1290	#endif
959		1291
960	ev_rt_now = ev_time ();	1292	ev_rt_now = ev_time ();
961	mn_now = get_clock ();	1293	mn_now = get_clock ();
962	now_floor = mn_now;	1294	now_floor = mn_now;
963	rtmn_diff = ev_rt_now - mn_now;	1295	rtmn_diff = ev_rt_now - mn_now;
		1296
		1297	io_blocktime = 0.;
		1298	timeout_blocktime = 0.;
		1299	backend = 0;
		1300	backend_fd = -1;
		1301	gotasync = 0;
		1302	#if EV_USE_INOTIFY
		1303	fs_fd = -2;
		1304	#endif
964		1305
965	/* pid check not overridable via env */	1306	/* pid check not overridable via env */
966	#ifndef _WIN32	1307	#ifndef _WIN32
967	if (flags & EVFLAG_FORKCHECK)	1308	if (flags & EVFLAG_FORKCHECK)
968	curpid = getpid ();	1309	curpid = getpid ();
…		…
971	if (!(flags & EVFLAG_NOENV)	1312	if (!(flags & EVFLAG_NOENV)
972	&& !enable_secure ()	1313	&& !enable_secure ()
973	&& getenv ("LIBEV_FLAGS"))	1314	&& getenv ("LIBEV_FLAGS"))
974	flags = atoi (getenv ("LIBEV_FLAGS"));	1315	flags = atoi (getenv ("LIBEV_FLAGS"));
975		1316
976	if (!(flags & 0x0000ffffUL))	1317	if (!(flags & 0x0000ffffU))
977	flags |= ev_recommended_backends ();	1318	flags |= ev_recommended_backends ();
978
979	backend = 0;
980	backend_fd = -1;
981	#if EV_USE_INOTIFY
982	fs_fd = -2;
983	#endif
984		1319
985	#if EV_USE_PORT	1320	#if EV_USE_PORT
986	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1321	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987	#endif	1322	#endif
988	#if EV_USE_KQUEUE	1323	#if EV_USE_KQUEUE
…		…
996	#endif	1331	#endif
997	#if EV_USE_SELECT	1332	#if EV_USE_SELECT
998	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1333	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
999	#endif	1334	#endif
1000		1335
1001	ev_init (&sigev, sigcb);	1336	ev_init (&pipeev, pipecb);
1002	ev_set_priority (&sigev, EV_MAXPRI);	1337	ev_set_priority (&pipeev, EV_MAXPRI);
1003	}	1338	}
1004	}	1339	}
1005		1340
1006	static void noinline	1341	static void noinline
1007	loop_destroy (EV_P)	1342	loop_destroy (EV_P)
1008	{	1343	{
1009	int i;	1344	int i;
		1345
		1346	if (ev_is_active (&pipeev))
		1347	{
		1348	ev_ref (EV_A); /* signal watcher */
		1349	ev_io_stop (EV_A_ &pipeev);
		1350
		1351	#if EV_USE_EVENTFD
		1352	if (evfd >= 0)
		1353	close (evfd);
		1354	#endif
		1355
		1356	if (evpipe [0] >= 0)
		1357	{
		1358	close (evpipe [0]);
		1359	close (evpipe [1]);
		1360	}
		1361	}
1010		1362
1011	#if EV_USE_INOTIFY	1363	#if EV_USE_INOTIFY
1012	if (fs_fd >= 0)	1364	if (fs_fd >= 0)
1013	close (fs_fd);	1365	close (fs_fd);
1014	#endif	1366	#endif
…		…
1051	#if EV_FORK_ENABLE	1403	#if EV_FORK_ENABLE
1052	array_free (fork, EMPTY);	1404	array_free (fork, EMPTY);
1053	#endif	1405	#endif
1054	array_free (prepare, EMPTY);	1406	array_free (prepare, EMPTY);
1055	array_free (check, EMPTY);	1407	array_free (check, EMPTY);
		1408	#if EV_ASYNC_ENABLE
		1409	array_free (async, EMPTY);
		1410	#endif
1056		1411
1057	backend = 0;	1412	backend = 0;
1058	}	1413	}
1059		1414
		1415	#if EV_USE_INOTIFY
1060	void inline_size infy_fork (EV_P);	1416	void inline_size infy_fork (EV_P);
		1417	#endif
1061		1418
1062	void inline_size	1419	void inline_size
1063	loop_fork (EV_P)	1420	loop_fork (EV_P)
1064	{	1421	{
1065	#if EV_USE_PORT	1422	#if EV_USE_PORT
…		…
1073	#endif	1430	#endif
1074	#if EV_USE_INOTIFY	1431	#if EV_USE_INOTIFY
1075	infy_fork (EV_A);	1432	infy_fork (EV_A);
1076	#endif	1433	#endif
1077		1434
1078	if (ev_is_active (&sigev))	1435	if (ev_is_active (&pipeev))
1079	{	1436	{
1080	/* default loop */	1437	/* this "locks" the handlers against writing to the pipe */
		1438	/* while we modify the fd vars */
		1439	gotsig = 1;
		1440	#if EV_ASYNC_ENABLE
		1441	gotasync = 1;
		1442	#endif
1081		1443
1082	ev_ref (EV_A);	1444	ev_ref (EV_A);
1083	ev_io_stop (EV_A_ &sigev);	1445	ev_io_stop (EV_A_ &pipeev);
		1446
		1447	#if EV_USE_EVENTFD
		1448	if (evfd >= 0)
		1449	close (evfd);
		1450	#endif
		1451
		1452	if (evpipe [0] >= 0)
		1453	{
1084	close (sigpipe [0]);	1454	close (evpipe [0]);
1085	close (sigpipe [1]);	1455	close (evpipe [1]);
		1456	}
1086		1457
1087	while (pipe (sigpipe))
1088	syserr ("(libev) error creating pipe");
1089
1090	siginit (EV_A);	1458	evpipe_init (EV_A);
		1459	/* now iterate over everything, in case we missed something */
		1460	pipecb (EV_A_ &pipeev, EV_READ);
1091	}	1461	}
1092		1462
1093	postfork = 0;	1463	postfork = 0;
1094	}	1464	}
1095		1465
…		…
1117	}	1487	}
1118		1488
1119	void	1489	void
1120	ev_loop_fork (EV_P)	1490	ev_loop_fork (EV_P)
1121	{	1491	{
1122	postfork = 1;	1492	postfork = 1; /* must be in line with ev_default_fork */
1123	}	1493	}
1124
1125	#endif	1494	#endif
1126		1495
1127	#if EV_MULTIPLICITY	1496	#if EV_MULTIPLICITY
1128	struct ev_loop *	1497	struct ev_loop *
1129	ev_default_loop_init (unsigned int flags)	1498	ev_default_loop_init (unsigned int flags)
1130	#else	1499	#else
1131	int	1500	int
1132	ev_default_loop (unsigned int flags)	1501	ev_default_loop (unsigned int flags)
1133	#endif	1502	#endif
1134	{	1503	{
1135	if (sigpipe [0] == sigpipe [1])
1136	if (pipe (sigpipe))
1137	return 0;
1138
1139	if (!ev_default_loop_ptr)	1504	if (!ev_default_loop_ptr)
1140	{	1505	{
1141	#if EV_MULTIPLICITY	1506	#if EV_MULTIPLICITY
1142	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1507	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1143	#else	1508	#else
…		…
1146		1511
1147	loop_init (EV_A_ flags);	1512	loop_init (EV_A_ flags);
1148		1513
1149	if (ev_backend (EV_A))	1514	if (ev_backend (EV_A))
1150	{	1515	{
1151	siginit (EV_A);
1152
1153	#ifndef _WIN32	1516	#ifndef _WIN32
1154	ev_signal_init (&childev, childcb, SIGCHLD);	1517	ev_signal_init (&childev, childcb, SIGCHLD);
1155	ev_set_priority (&childev, EV_MAXPRI);	1518	ev_set_priority (&childev, EV_MAXPRI);
1156	ev_signal_start (EV_A_ &childev);	1519	ev_signal_start (EV_A_ &childev);
1157	ev_unref (EV_A); /* child watcher should not keep loop alive */	1520	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1174	#ifndef _WIN32	1537	#ifndef _WIN32
1175	ev_ref (EV_A); /* child watcher */	1538	ev_ref (EV_A); /* child watcher */
1176	ev_signal_stop (EV_A_ &childev);	1539	ev_signal_stop (EV_A_ &childev);
1177	#endif	1540	#endif
1178		1541
1179	ev_ref (EV_A); /* signal watcher */
1180	ev_io_stop (EV_A_ &sigev);
1181
1182	close (sigpipe [0]); sigpipe [0] = 0;
1183	close (sigpipe [1]); sigpipe [1] = 0;
1184
1185	loop_destroy (EV_A);	1542	loop_destroy (EV_A);
1186	}	1543	}
1187		1544
1188	void	1545	void
1189	ev_default_fork (void)	1546	ev_default_fork (void)
…		…
1191	#if EV_MULTIPLICITY	1548	#if EV_MULTIPLICITY
1192	struct ev_loop *loop = ev_default_loop_ptr;	1549	struct ev_loop *loop = ev_default_loop_ptr;
1193	#endif	1550	#endif
1194		1551
1195	if (backend)	1552	if (backend)
1196	postfork = 1;	1553	postfork = 1; /* must be in line with ev_loop_fork */
1197	}	1554	}
1198		1555
1199	/*****************************************************************************/	1556	/*****************************************************************************/
1200		1557
1201	void	1558	void
…		…
1221	p->w->pending = 0;	1578	p->w->pending = 0;
1222	EV_CB_INVOKE (p->w, p->events);	1579	EV_CB_INVOKE (p->w, p->events);
1223	}	1580	}
1224	}	1581	}
1225	}	1582	}
1226
1227	void inline_size
1228	timers_reify (EV_P)
1229	{
1230	while (timercnt && ((WT)timers [0])->at <= mn_now)
1231	{
1232	ev_timer *w = (ev_timer *)timers [0];
1233
1234	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1235
1236	/* first reschedule or stop timer */
1237	if (w->repeat)
1238	{
1239	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1240
1241	((WT)w)->at += w->repeat;
1242	if (((WT)w)->at < mn_now)
1243	((WT)w)->at = mn_now;
1244
1245	downheap (timers, timercnt, 0);
1246	}
1247	else
1248	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1249
1250	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1251	}
1252	}
1253
1254	#if EV_PERIODIC_ENABLE
1255	void inline_size
1256	periodics_reify (EV_P)
1257	{
1258	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1259	{
1260	ev_periodic *w = (ev_periodic *)periodics [0];
1261
1262	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1263
1264	/* first reschedule or stop timer */
1265	if (w->reschedule_cb)
1266	{
1267	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1268	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1269	downheap (periodics, periodiccnt, 0);
1270	}
1271	else if (w->interval)
1272	{
1273	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1274	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1275	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1276	downheap (periodics, periodiccnt, 0);
1277	}
1278	else
1279	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1280
1281	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1282	}
1283	}
1284
1285	static void noinline
1286	periodics_reschedule (EV_P)
1287	{
1288	int i;
1289
1290	/* adjust periodics after time jump */
1291	for (i = 0; i < periodiccnt; ++i)
1292	{
1293	ev_periodic *w = (ev_periodic *)periodics [i];
1294
1295	if (w->reschedule_cb)
1296	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1297	else if (w->interval)
1298	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1299	}
1300
1301	/* now rebuild the heap */
1302	for (i = periodiccnt >> 1; i--; )
1303	downheap (periodics, periodiccnt, i);
1304	}
1305	#endif
1306		1583
1307	#if EV_IDLE_ENABLE	1584	#if EV_IDLE_ENABLE
1308	void inline_size	1585	void inline_size
1309	idle_reify (EV_P)	1586	idle_reify (EV_P)
1310	{	1587	{
…		…
1322	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);	1599	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1323	break;	1600	break;
1324	}	1601	}
1325	}	1602	}
1326	}	1603	}
		1604	}
		1605	#endif
		1606
		1607	void inline_size
		1608	timers_reify (EV_P)
		1609	{
		1610	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		1611	{
		1612	ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
		1613
		1614	/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
		1615
		1616	/* first reschedule or stop timer */
		1617	if (w->repeat)
		1618	{
		1619	ev_at (w) += w->repeat;
		1620	if (ev_at (w) < mn_now)
		1621	ev_at (w) = mn_now;
		1622
		1623	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1624
		1625	ANHE_at_set (timers [HEAP0]);
		1626	downheap (timers, timercnt, HEAP0);
		1627	}
		1628	else
		1629	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1630
		1631	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
		1632	}
		1633	}
		1634
		1635	#if EV_PERIODIC_ENABLE
		1636	void inline_size
		1637	periodics_reify (EV_P)
		1638	{
		1639	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		1640	{
		1641	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
		1642
		1643	/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
		1644
		1645	/* first reschedule or stop timer */
		1646	if (w->reschedule_cb)
		1647	{
		1648	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1649
		1650	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1651
		1652	ANHE_at_set (periodics [HEAP0]);
		1653	downheap (periodics, periodiccnt, HEAP0);
		1654	}
		1655	else if (w->interval)
		1656	{
		1657	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1658	/* if next trigger time is not sufficiently in the future, put it there */
		1659	/* this might happen because of floating point inexactness */
		1660	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1661	{
		1662	ev_at (w) += w->interval;
		1663
		1664	/* if interval is unreasonably low we might still have a time in the past */
		1665	/* so correct this. this will make the periodic very inexact, but the user */
		1666	/* has effectively asked to get triggered more often than possible */
		1667	if (ev_at (w) < ev_rt_now)
		1668	ev_at (w) = ev_rt_now;
		1669	}
		1670
		1671	ANHE_at_set (periodics [HEAP0]);
		1672	downheap (periodics, periodiccnt, HEAP0);
		1673	}
		1674	else
		1675	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1676
		1677	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
		1678	}
		1679	}
		1680
		1681	static void noinline
		1682	periodics_reschedule (EV_P)
		1683	{
		1684	int i;
		1685
		1686	/* adjust periodics after time jump */
		1687	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		1688	{
		1689	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
		1690
		1691	if (w->reschedule_cb)
		1692	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1693	else if (w->interval)
		1694	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1695
		1696	ANHE_at_set (periodics [i]);
		1697	}
		1698
		1699	/* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */
		1700	/* also, this is easy and corretc for both 2-heaps and 4-heaps */
		1701	for (i = 0; i < periodiccnt; ++i)
		1702	upheap (periodics, i + HEAP0);
1327	}	1703	}
1328	#endif	1704	#endif
1329		1705
1330	void inline_speed	1706	void inline_speed
1331	time_update (EV_P_ ev_tstamp max_block)	1707	time_update (EV_P_ ev_tstamp max_block)
…		…
1360	*/	1736	*/
1361	for (i = 4; --i; )	1737	for (i = 4; --i; )
1362	{	1738	{
1363	rtmn_diff = ev_rt_now - mn_now;	1739	rtmn_diff = ev_rt_now - mn_now;
1364		1740
1365	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1741	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1366	return; /* all is well */	1742	return; /* all is well */
1367		1743
1368	ev_rt_now = ev_time ();	1744	ev_rt_now = ev_time ();
1369	mn_now = get_clock ();	1745	mn_now = get_clock ();
1370	now_floor = mn_now;	1746	now_floor = mn_now;
…		…
1386	#if EV_PERIODIC_ENABLE	1762	#if EV_PERIODIC_ENABLE
1387	periodics_reschedule (EV_A);	1763	periodics_reschedule (EV_A);
1388	#endif	1764	#endif
1389	/* adjust timers. this is easy, as the offset is the same for all of them */	1765	/* adjust timers. this is easy, as the offset is the same for all of them */
1390	for (i = 0; i < timercnt; ++i)	1766	for (i = 0; i < timercnt; ++i)
		1767	{
		1768	ANHE *he = timers + i + HEAP0;
1391	((WT)timers [i])->at += ev_rt_now - mn_now;	1769	ANHE_w (*he)->at += ev_rt_now - mn_now;
		1770	ANHE_at_set (*he);
		1771	}
1392	}	1772	}
1393		1773
1394	mn_now = ev_rt_now;	1774	mn_now = ev_rt_now;
1395	}	1775	}
1396	}	1776	}
…		…
1410	static int loop_done;	1790	static int loop_done;
1411		1791
1412	void	1792	void
1413	ev_loop (EV_P_ int flags)	1793	ev_loop (EV_P_ int flags)
1414	{	1794	{
1415	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)	1795	loop_done = EVUNLOOP_CANCEL;
1416	? EVUNLOOP_ONE
1417	: EVUNLOOP_CANCEL;
1418		1796
1419	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1797	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1420		1798
1421	do	1799	do
1422	{	1800	{
…		…
1456	/* update fd-related kernel structures */	1834	/* update fd-related kernel structures */
1457	fd_reify (EV_A);	1835	fd_reify (EV_A);
1458		1836
1459	/* calculate blocking time */	1837	/* calculate blocking time */
1460	{	1838	{
1461	ev_tstamp block;	1839	ev_tstamp waittime = 0.;
		1840	ev_tstamp sleeptime = 0.;
1462		1841
1463	if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))	1842	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1464	block = 0.; /* do not block at all */
1465	else
1466	{	1843	{
1467	/* update time to cancel out callback processing overhead */	1844	/* update time to cancel out callback processing overhead */
1468	time_update (EV_A_ 1e100);	1845	time_update (EV_A_ 1e100);
1469		1846
1470	block = MAX_BLOCKTIME;	1847	waittime = MAX_BLOCKTIME;
1471		1848
1472	if (timercnt)	1849	if (timercnt)
1473	{	1850	{
1474	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1851	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1475	if (block > to) block = to;	1852	if (waittime > to) waittime = to;
1476	}	1853	}
1477		1854
1478	#if EV_PERIODIC_ENABLE	1855	#if EV_PERIODIC_ENABLE
1479	if (periodiccnt)	1856	if (periodiccnt)
1480	{	1857	{
1481	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1858	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1482	if (block > to) block = to;	1859	if (waittime > to) waittime = to;
1483	}	1860	}
1484	#endif	1861	#endif
1485		1862
1486	if (expect_false (block < 0.)) block = 0.;	1863	if (expect_false (waittime < timeout_blocktime))
		1864	waittime = timeout_blocktime;
		1865
		1866	sleeptime = waittime - backend_fudge;
		1867
		1868	if (expect_true (sleeptime > io_blocktime))
		1869	sleeptime = io_blocktime;
		1870
		1871	if (sleeptime)
		1872	{
		1873	ev_sleep (sleeptime);
		1874	waittime -= sleeptime;
		1875	}
1487	}	1876	}
1488		1877
1489	++loop_count;	1878	++loop_count;
1490	backend_poll (EV_A_ block);	1879	backend_poll (EV_A_ waittime);
1491		1880
1492	/* update ev_rt_now, do magic */	1881	/* update ev_rt_now, do magic */
1493	time_update (EV_A_ block);	1882	time_update (EV_A_ waittime + sleeptime);
1494	}	1883	}
1495		1884
1496	/* queue pending timers and reschedule them */	1885	/* queue pending timers and reschedule them */
1497	timers_reify (EV_A); /* relative timers called last */	1886	timers_reify (EV_A); /* relative timers called last */
1498	#if EV_PERIODIC_ENABLE	1887	#if EV_PERIODIC_ENABLE
…		…
1507	/* queue check watchers, to be executed first */	1896	/* queue check watchers, to be executed first */
1508	if (expect_false (checkcnt))	1897	if (expect_false (checkcnt))
1509	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1898	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1510		1899
1511	call_pending (EV_A);	1900	call_pending (EV_A);
1512
1513	}	1901	}
1514	while (expect_true (activecnt && !loop_done));	1902	while (expect_true (
		1903	activecnt
		1904	&& !loop_done
		1905	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
		1906	));
1515		1907
1516	if (loop_done == EVUNLOOP_ONE)	1908	if (loop_done == EVUNLOOP_ONE)
1517	loop_done = EVUNLOOP_CANCEL;	1909	loop_done = EVUNLOOP_CANCEL;
1518	}	1910	}
1519		1911
…		…
1623	{	2015	{
1624	clear_pending (EV_A_ (W)w);	2016	clear_pending (EV_A_ (W)w);
1625	if (expect_false (!ev_is_active (w)))	2017	if (expect_false (!ev_is_active (w)))
1626	return;	2018	return;
1627		2019
1628	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2020	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1629		2021
1630	wlist_del (&anfds[w->fd].head, (WL)w);	2022	wlist_del (&anfds[w->fd].head, (WL)w);
1631	ev_stop (EV_A_ (W)w);	2023	ev_stop (EV_A_ (W)w);
1632		2024
1633	fd_change (EV_A_ w->fd, 1);	2025	fd_change (EV_A_ w->fd, 1);
…		…
1637	ev_timer_start (EV_P_ ev_timer *w)	2029	ev_timer_start (EV_P_ ev_timer *w)
1638	{	2030	{
1639	if (expect_false (ev_is_active (w)))	2031	if (expect_false (ev_is_active (w)))
1640	return;	2032	return;
1641		2033
1642	((WT)w)->at += mn_now;	2034	ev_at (w) += mn_now;
1643		2035
1644	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2036	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1645		2037
1646	ev_start (EV_A_ (W)w, ++timercnt);	2038	ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1);
1647	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2039	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1648	timers [timercnt - 1] = (WT)w;	2040	ANHE_w (timers [ev_active (w)]) = (WT)w;
1649	upheap (timers, timercnt - 1);	2041	ANHE_at_set (timers [ev_active (w)]);
		2042	upheap (timers, ev_active (w));
1650		2043
1651	/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/	2044	/*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
1652	}	2045	}
1653		2046
1654	void noinline	2047	void noinline
1655	ev_timer_stop (EV_P_ ev_timer *w)	2048	ev_timer_stop (EV_P_ ev_timer *w)
1656	{	2049	{
1657	clear_pending (EV_A_ (W)w);	2050	clear_pending (EV_A_ (W)w);
1658	if (expect_false (!ev_is_active (w)))	2051	if (expect_false (!ev_is_active (w)))
1659	return;	2052	return;
1660		2053
1661	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1662
1663	{	2054	{
1664	int active = ((W)w)->active;	2055	int active = ev_active (w);
1665		2056
		2057	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2058
1666	if (expect_true (--active < --timercnt))	2059	if (expect_true (active < timercnt + HEAP0 - 1))
1667	{	2060	{
1668	timers [active] = timers [timercnt];	2061	timers [active] = timers [timercnt + HEAP0 - 1];
1669	adjustheap (timers, timercnt, active);	2062	adjustheap (timers, timercnt, active);
1670	}	2063	}
		2064
		2065	--timercnt;
1671	}	2066	}
1672		2067
1673	((WT)w)->at -= mn_now;	2068	ev_at (w) -= mn_now;
1674		2069
1675	ev_stop (EV_A_ (W)w);	2070	ev_stop (EV_A_ (W)w);
1676	}	2071	}
1677		2072
1678	void noinline	2073	void noinline
…		…
1680	{	2075	{
1681	if (ev_is_active (w))	2076	if (ev_is_active (w))
1682	{	2077	{
1683	if (w->repeat)	2078	if (w->repeat)
1684	{	2079	{
1685	((WT)w)->at = mn_now + w->repeat;	2080	ev_at (w) = mn_now + w->repeat;
		2081	ANHE_at_set (timers [ev_active (w)]);
1686	adjustheap (timers, timercnt, ((W)w)->active - 1);	2082	adjustheap (timers, timercnt, ev_active (w));
1687	}	2083	}
1688	else	2084	else
1689	ev_timer_stop (EV_A_ w);	2085	ev_timer_stop (EV_A_ w);
1690	}	2086	}
1691	else if (w->repeat)	2087	else if (w->repeat)
1692	{	2088	{
1693	w->at = w->repeat;	2089	ev_at (w) = w->repeat;
1694	ev_timer_start (EV_A_ w);	2090	ev_timer_start (EV_A_ w);
1695	}	2091	}
1696	}	2092	}
1697		2093
1698	#if EV_PERIODIC_ENABLE	2094	#if EV_PERIODIC_ENABLE
…		…
1701	{	2097	{
1702	if (expect_false (ev_is_active (w)))	2098	if (expect_false (ev_is_active (w)))
1703	return;	2099	return;
1704		2100
1705	if (w->reschedule_cb)	2101	if (w->reschedule_cb)
1706	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2102	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1707	else if (w->interval)	2103	else if (w->interval)
1708	{	2104	{
1709	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2105	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1710	/* this formula differs from the one in periodic_reify because we do not always round up */	2106	/* this formula differs from the one in periodic_reify because we do not always round up */
1711	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2107	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1712	}	2108	}
1713	else	2109	else
1714	((WT)w)->at = w->offset;	2110	ev_at (w) = w->offset;
1715		2111
1716	ev_start (EV_A_ (W)w, ++periodiccnt);	2112	ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1);
1717	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2113	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1718	periodics [periodiccnt - 1] = (WT)w;	2114	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1719	upheap (periodics, periodiccnt - 1);	2115	ANHE_at_set (periodics [ev_active (w)]);
		2116	upheap (periodics, ev_active (w));
1720		2117
1721	/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/	2118	/*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
1722	}	2119	}
1723		2120
1724	void noinline	2121	void noinline
1725	ev_periodic_stop (EV_P_ ev_periodic *w)	2122	ev_periodic_stop (EV_P_ ev_periodic *w)
1726	{	2123	{
1727	clear_pending (EV_A_ (W)w);	2124	clear_pending (EV_A_ (W)w);
1728	if (expect_false (!ev_is_active (w)))	2125	if (expect_false (!ev_is_active (w)))
1729	return;	2126	return;
1730		2127
1731	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1732
1733	{	2128	{
1734	int active = ((W)w)->active;	2129	int active = ev_active (w);
1735		2130
		2131	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2132
1736	if (expect_true (--active < --periodiccnt))	2133	if (expect_true (active < periodiccnt + HEAP0 - 1))
1737	{	2134	{
1738	periodics [active] = periodics [periodiccnt];	2135	periodics [active] = periodics [periodiccnt + HEAP0 - 1];
1739	adjustheap (periodics, periodiccnt, active);	2136	adjustheap (periodics, periodiccnt, active);
1740	}	2137	}
		2138
		2139	--periodiccnt;
1741	}	2140	}
1742		2141
1743	ev_stop (EV_A_ (W)w);	2142	ev_stop (EV_A_ (W)w);
1744	}	2143	}
1745		2144
…		…
1764	#endif	2163	#endif
1765	if (expect_false (ev_is_active (w)))	2164	if (expect_false (ev_is_active (w)))
1766	return;	2165	return;
1767		2166
1768	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2167	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		2168
		2169	evpipe_init (EV_A);
1769		2170
1770	{	2171	{
1771	#ifndef _WIN32	2172	#ifndef _WIN32
1772	sigset_t full, prev;	2173	sigset_t full, prev;
1773	sigfillset (&full);	2174	sigfillset (&full);
…		…
1785	wlist_add (&signals [w->signum - 1].head, (WL)w);	2186	wlist_add (&signals [w->signum - 1].head, (WL)w);
1786		2187
1787	if (!((WL)w)->next)	2188	if (!((WL)w)->next)
1788	{	2189	{
1789	#if _WIN32	2190	#if _WIN32
1790	signal (w->signum, sighandler);	2191	signal (w->signum, ev_sighandler);
1791	#else	2192	#else
1792	struct sigaction sa;	2193	struct sigaction sa;
1793	sa.sa_handler = sighandler;	2194	sa.sa_handler = ev_sighandler;
1794	sigfillset (&sa.sa_mask);	2195	sigfillset (&sa.sa_mask);
1795	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2196	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1796	sigaction (w->signum, &sa, 0);	2197	sigaction (w->signum, &sa, 0);
1797	#endif	2198	#endif
1798	}	2199	}
…		…
1859	if (w->wd < 0)	2260	if (w->wd < 0)
1860	{	2261	{
1861	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2262	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1862		2263
1863	/* monitor some parent directory for speedup hints */	2264	/* monitor some parent directory for speedup hints */
		2265	/* note that exceeding the hardcoded limit is not a correctness issue, */
		2266	/* but an efficiency issue only */
1864	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)	2267	if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1865	{	2268	{
1866	char path [4096];	2269	char path [4096];
1867	strcpy (path, w->path);	2270	strcpy (path, w->path);
1868		2271
…		…
2113	clear_pending (EV_A_ (W)w);	2516	clear_pending (EV_A_ (W)w);
2114	if (expect_false (!ev_is_active (w)))	2517	if (expect_false (!ev_is_active (w)))
2115	return;	2518	return;
2116		2519
2117	{	2520	{
2118	int active = ((W)w)->active;	2521	int active = ev_active (w);
2119		2522
2120	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2523	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2121	((W)idles [ABSPRI (w)][active - 1])->active = active;	2524	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2122		2525
2123	ev_stop (EV_A_ (W)w);	2526	ev_stop (EV_A_ (W)w);
2124	--idleall;	2527	--idleall;
2125	}	2528	}
2126	}	2529	}
…		…
2143	clear_pending (EV_A_ (W)w);	2546	clear_pending (EV_A_ (W)w);
2144	if (expect_false (!ev_is_active (w)))	2547	if (expect_false (!ev_is_active (w)))
2145	return;	2548	return;
2146		2549
2147	{	2550	{
2148	int active = ((W)w)->active;	2551	int active = ev_active (w);
		2552
2149	prepares [active - 1] = prepares [--preparecnt];	2553	prepares [active - 1] = prepares [--preparecnt];
2150	((W)prepares [active - 1])->active = active;	2554	ev_active (prepares [active - 1]) = active;
2151	}	2555	}
2152		2556
2153	ev_stop (EV_A_ (W)w);	2557	ev_stop (EV_A_ (W)w);
2154	}	2558	}
2155		2559
…		…
2170	clear_pending (EV_A_ (W)w);	2574	clear_pending (EV_A_ (W)w);
2171	if (expect_false (!ev_is_active (w)))	2575	if (expect_false (!ev_is_active (w)))
2172	return;	2576	return;
2173		2577
2174	{	2578	{
2175	int active = ((W)w)->active;	2579	int active = ev_active (w);
		2580
2176	checks [active - 1] = checks [--checkcnt];	2581	checks [active - 1] = checks [--checkcnt];
2177	((W)checks [active - 1])->active = active;	2582	ev_active (checks [active - 1]) = active;
2178	}	2583	}
2179		2584
2180	ev_stop (EV_A_ (W)w);	2585	ev_stop (EV_A_ (W)w);
2181	}	2586	}
2182		2587
…		…
2193	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	2598	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2194		2599
2195	if (ev_cb (w))	2600	if (ev_cb (w))
2196	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2601	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2197	else	2602	else
2198	ev_embed_sweep (loop, w);	2603	ev_loop (w->other, EVLOOP_NONBLOCK);
2199	}	2604	}
2200		2605
2201	static void	2606	static void
2202	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	2607	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2203	{	2608	{
2204	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));	2609	ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2205		2610
2206	fd_reify (w->other);	2611	{
		2612	struct ev_loop *loop = w->other;
		2613
		2614	while (fdchangecnt)
		2615	{
		2616	fd_reify (EV_A);
		2617	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2618	}
		2619	}
2207	}	2620	}
		2621
		2622	#if 0
		2623	static void
		2624	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2625	{
		2626	ev_idle_stop (EV_A_ idle);
		2627	}
		2628	#endif
2208		2629
2209	void	2630	void
2210	ev_embed_start (EV_P_ ev_embed *w)	2631	ev_embed_start (EV_P_ ev_embed *w)
2211	{	2632	{
2212	if (expect_false (ev_is_active (w)))	2633	if (expect_false (ev_is_active (w)))
2213	return;	2634	return;
2214		2635
2215	{	2636	{
2216	struct ev_loop *loop = w->other;	2637	struct ev_loop *loop = w->other;
2217	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2638	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2218	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_WRITE);	2639	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2219	}	2640	}
2220		2641
2221	ev_set_priority (&w->io, ev_priority (w));	2642	ev_set_priority (&w->io, ev_priority (w));
2222	ev_io_start (EV_A_ &w->io);	2643	ev_io_start (EV_A_ &w->io);
2223		2644
2224	ev_prepare_init (&w->prepare, embed_prepare_cb);	2645	ev_prepare_init (&w->prepare, embed_prepare_cb);
2225	ev_set_priority (&w->prepare, EV_MINPRI);	2646	ev_set_priority (&w->prepare, EV_MINPRI);
2226	ev_prepare_start (EV_A_ &w->prepare);	2647	ev_prepare_start (EV_A_ &w->prepare);
2227		2648
		2649	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
		2650
2228	ev_start (EV_A_ (W)w, 1);	2651	ev_start (EV_A_ (W)w, 1);
2229	}	2652	}
2230		2653
2231	void	2654	void
2232	ev_embed_stop (EV_P_ ev_embed *w)	2655	ev_embed_stop (EV_P_ ev_embed *w)
…		…
2260	clear_pending (EV_A_ (W)w);	2683	clear_pending (EV_A_ (W)w);
2261	if (expect_false (!ev_is_active (w)))	2684	if (expect_false (!ev_is_active (w)))
2262	return;	2685	return;
2263		2686
2264	{	2687	{
2265	int active = ((W)w)->active;	2688	int active = ev_active (w);
		2689
2266	forks [active - 1] = forks [--forkcnt];	2690	forks [active - 1] = forks [--forkcnt];
2267	((W)forks [active - 1])->active = active;	2691	ev_active (forks [active - 1]) = active;
2268	}	2692	}
2269		2693
2270	ev_stop (EV_A_ (W)w);	2694	ev_stop (EV_A_ (W)w);
		2695	}
		2696	#endif
		2697
		2698	#if EV_ASYNC_ENABLE
		2699	void
		2700	ev_async_start (EV_P_ ev_async *w)
		2701	{
		2702	if (expect_false (ev_is_active (w)))
		2703	return;
		2704
		2705	evpipe_init (EV_A);
		2706
		2707	ev_start (EV_A_ (W)w, ++asynccnt);
		2708	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2709	asyncs [asynccnt - 1] = w;
		2710	}
		2711
		2712	void
		2713	ev_async_stop (EV_P_ ev_async *w)
		2714	{
		2715	clear_pending (EV_A_ (W)w);
		2716	if (expect_false (!ev_is_active (w)))
		2717	return;
		2718
		2719	{
		2720	int active = ev_active (w);
		2721
		2722	asyncs [active - 1] = asyncs [--asynccnt];
		2723	ev_active (asyncs [active - 1]) = active;
		2724	}
		2725
		2726	ev_stop (EV_A_ (W)w);
		2727	}
		2728
		2729	void
		2730	ev_async_send (EV_P_ ev_async *w)
		2731	{
		2732	w->sent = 1;
		2733	evpipe_write (EV_A_ &gotasync);
2271	}	2734	}
2272	#endif	2735	#endif
2273		2736
2274	/*****************************************************************************/	2737	/*****************************************************************************/
2275		2738

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