[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.185 by root, Fri Dec 14 18:22:30 2007 UTC vs.
Revision 1.258 by root, Sun Sep 7 18:15:12 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>
…		…
129	#ifndef _WIN32	154	#ifndef _WIN32
130	# include <sys/time.h>	155	# include <sys/time.h>
131	# include <sys/wait.h>	156	# include <sys/wait.h>
132	# include <unistd.h>	157	# include <unistd.h>
133	#else	158	#else
		159	# include <io.h>
134	# define WIN32_LEAN_AND_MEAN	160	# define WIN32_LEAN_AND_MEAN
135	# include <windows.h>	161	# include <windows.h>
136	# ifndef EV_SELECT_IS_WINSOCKET	162	# ifndef EV_SELECT_IS_WINSOCKET
137	# define EV_SELECT_IS_WINSOCKET 1	163	# define EV_SELECT_IS_WINSOCKET 1
138	# endif	164	# endif
139	#endif	165	#endif
140		166
141	/**/	167	/* this block tries to deduce configuration from header-defined symbols and defaults */
142		168
143	#ifndef EV_USE_MONOTONIC	169	#ifndef EV_USE_MONOTONIC
		170	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
		171	# define EV_USE_MONOTONIC 1
		172	# else
144	# define EV_USE_MONOTONIC 0	173	# define EV_USE_MONOTONIC 0
		174	# endif
145	#endif	175	#endif
146		176
147	#ifndef EV_USE_REALTIME	177	#ifndef EV_USE_REALTIME
148	# define EV_USE_REALTIME 0	178	# define EV_USE_REALTIME 0
		179	#endif
		180
		181	#ifndef EV_USE_NANOSLEEP
		182	# if _POSIX_C_SOURCE >= 199309L
		183	# define EV_USE_NANOSLEEP 1
		184	# else
		185	# define EV_USE_NANOSLEEP 0
		186	# endif
149	#endif	187	#endif
150		188
151	#ifndef EV_USE_SELECT	189	#ifndef EV_USE_SELECT
152	# define EV_USE_SELECT 1	190	# define EV_USE_SELECT 1
153	#endif	191	#endif
…		…
159	# define EV_USE_POLL 1	197	# define EV_USE_POLL 1
160	# endif	198	# endif
161	#endif	199	#endif
162		200
163	#ifndef EV_USE_EPOLL	201	#ifndef EV_USE_EPOLL
		202	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		203	# define EV_USE_EPOLL 1
		204	# else
164	# define EV_USE_EPOLL 0	205	# define EV_USE_EPOLL 0
		206	# endif
165	#endif	207	#endif
166		208
167	#ifndef EV_USE_KQUEUE	209	#ifndef EV_USE_KQUEUE
168	# define EV_USE_KQUEUE 0	210	# define EV_USE_KQUEUE 0
169	#endif	211	#endif
…		…
171	#ifndef EV_USE_PORT	213	#ifndef EV_USE_PORT
172	# define EV_USE_PORT 0	214	# define EV_USE_PORT 0
173	#endif	215	#endif
174		216
175	#ifndef EV_USE_INOTIFY	217	#ifndef EV_USE_INOTIFY
		218	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
		219	# define EV_USE_INOTIFY 1
		220	# else
176	# define EV_USE_INOTIFY 0	221	# define EV_USE_INOTIFY 0
		222	# endif
177	#endif	223	#endif
178		224
179	#ifndef EV_PID_HASHSIZE	225	#ifndef EV_PID_HASHSIZE
180	# if EV_MINIMAL	226	# if EV_MINIMAL
181	# define EV_PID_HASHSIZE 1	227	# define EV_PID_HASHSIZE 1
…		…
190	# else	236	# else
191	# define EV_INOTIFY_HASHSIZE 16	237	# define EV_INOTIFY_HASHSIZE 16
192	# endif	238	# endif
193	#endif	239	#endif
194		240
195	/**/	241	#ifndef EV_USE_EVENTFD
		242	# if __linux && (__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
		243	# define EV_USE_EVENTFD 1
		244	# else
		245	# define EV_USE_EVENTFD 0
		246	# endif
		247	#endif
		248
		249	#if 0 /* debugging */
		250	# define EV_VERIFY 3
		251	# define EV_USE_4HEAP 1
		252	# define EV_HEAP_CACHE_AT 1
		253	#endif
		254
		255	#ifndef EV_VERIFY
		256	# define EV_VERIFY !EV_MINIMAL
		257	#endif
		258
		259	#ifndef EV_USE_4HEAP
		260	# define EV_USE_4HEAP !EV_MINIMAL
		261	#endif
		262
		263	#ifndef EV_HEAP_CACHE_AT
		264	# define EV_HEAP_CACHE_AT !EV_MINIMAL
		265	#endif
		266
		267	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
196		268
197	#ifndef CLOCK_MONOTONIC	269	#ifndef CLOCK_MONOTONIC
198	# undef EV_USE_MONOTONIC	270	# undef EV_USE_MONOTONIC
199	# define EV_USE_MONOTONIC 0	271	# define EV_USE_MONOTONIC 0
200	#endif	272	#endif
…		…
207	#if !EV_STAT_ENABLE	279	#if !EV_STAT_ENABLE
208	# undef EV_USE_INOTIFY	280	# undef EV_USE_INOTIFY
209	# define EV_USE_INOTIFY 0	281	# define EV_USE_INOTIFY 0
210	#endif	282	#endif
211		283
		284	#if !EV_USE_NANOSLEEP
		285	# ifndef _WIN32
		286	# include <sys/select.h>
		287	# endif
		288	#endif
		289
212	#if EV_USE_INOTIFY	290	#if EV_USE_INOTIFY
213	# include <sys/inotify.h>	291	# include <sys/inotify.h>
214	#endif	292	#endif
215		293
216	#if EV_SELECT_IS_WINSOCKET	294	#if EV_SELECT_IS_WINSOCKET
217	# include <winsock.h>	295	# include <winsock.h>
218	#endif	296	#endif
219		297
		298	#if EV_USE_EVENTFD
		299	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
		300	# include <stdint.h>
		301	# ifdef __cplusplus
		302	extern "C" {
		303	# endif
		304	int eventfd (unsigned int initval, int flags);
		305	# ifdef __cplusplus
		306	}
		307	# endif
		308	#endif
		309
220	/**/	310	/**/
		311
		312	#if EV_VERIFY >= 3
		313	# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
		314	#else
		315	# define EV_FREQUENT_CHECK do { } while (0)
		316	#endif
221		317
222	/*	318	/*
223	* This is used to avoid floating point rounding problems.	319	* This is used to avoid floating point rounding problems.
224	* It is added to ev_rt_now when scheduling periodics	320	* It is added to ev_rt_now when scheduling periodics
225	* to ensure progress, time-wise, even when rounding	321	* to ensure progress, time-wise, even when rounding
…		…
237	# define expect(expr,value) __builtin_expect ((expr),(value))	333	# define expect(expr,value) __builtin_expect ((expr),(value))
238	# define noinline __attribute__ ((noinline))	334	# define noinline __attribute__ ((noinline))
239	#else	335	#else
240	# define expect(expr,value) (expr)	336	# define expect(expr,value) (expr)
241	# define noinline	337	# define noinline
242	# if __STDC_VERSION__ < 199901L	338	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
243	# define inline	339	# define inline
244	# endif	340	# endif
245	#endif	341	#endif
246		342
247	#define expect_false(expr) expect ((expr) != 0, 0)	343	#define expect_false(expr) expect ((expr) != 0, 0)
…		…
262		358
263	typedef ev_watcher *W;	359	typedef ev_watcher *W;
264	typedef ev_watcher_list *WL;	360	typedef ev_watcher_list *WL;
265	typedef ev_watcher_time *WT;	361	typedef ev_watcher_time *WT;
266		362
		363	#define ev_active(w) ((W)(w))->active
		364	#define ev_at(w) ((WT)(w))->at
		365
		366	#if EV_USE_MONOTONIC
		367	/* sig_atomic_t is used to avoid per-thread variables or locking but still */
		368	/* giving it a reasonably high chance of working on typical architetcures */
267	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	369	static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		370	#endif
268		371
269	#ifdef _WIN32	372	#ifdef _WIN32
270	# include "ev_win32.c"	373	# include "ev_win32.c"
271	#endif	374	#endif
272		375
…		…
293	perror (msg);	396	perror (msg);
294	abort ();	397	abort ();
295	}	398	}
296	}	399	}
297		400
		401	static void *
		402	ev_realloc_emul (void *ptr, long size)
		403	{
		404	/* some systems, notably openbsd and darwin, fail to properly
		405	* implement realloc (x, 0) (as required by both ansi c-98 and
		406	* the single unix specification, so work around them here.
		407	*/
		408
		409	if (size)
		410	return realloc (ptr, size);
		411
		412	free (ptr);
		413	return 0;
		414	}
		415
298	static void (alloc)(void *ptr, long size);	416	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
299		417
300	void	418	void
301	ev_set_allocator (void (cb)(void *ptr, long size))	419	ev_set_allocator (void (cb)(void *ptr, long size))
302	{	420	{
303	alloc = cb;	421	alloc = cb;
304	}	422	}
305		423
306	inline_speed void *	424	inline_speed void *
307	ev_realloc (void *ptr, long size)	425	ev_realloc (void *ptr, long size)
308	{	426	{
309	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);	427	ptr = alloc (ptr, size);
310		428
311	if (!ptr && size)	429	if (!ptr && size)
312	{	430	{
313	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	431	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314	abort ();	432	abort ();
…		…
337	W w;	455	W w;
338	int events;	456	int events;
339	} ANPENDING;	457	} ANPENDING;
340		458
341	#if EV_USE_INOTIFY	459	#if EV_USE_INOTIFY
		460	/* hash table entry per inotify-id */
342	typedef struct	461	typedef struct
343	{	462	{
344	WL head;	463	WL head;
345	} ANFS;	464	} ANFS;
		465	#endif
		466
		467	/* Heap Entry */
		468	#if EV_HEAP_CACHE_AT
		469	typedef struct {
		470	ev_tstamp at;
		471	WT w;
		472	} ANHE;
		473
		474	#define ANHE_w(he) (he).w /* access watcher, read-write */
		475	#define ANHE_at(he) (he).at /* access cached at, read-only */
		476	#define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
		477	#else
		478	typedef WT ANHE;
		479
		480	#define ANHE_w(he) (he)
		481	#define ANHE_at(he) (he)->at
		482	#define ANHE_at_cache(he)
346	#endif	483	#endif
347		484
348	#if EV_MULTIPLICITY	485	#if EV_MULTIPLICITY
349		486
350	struct ev_loop	487	struct ev_loop
…		…
408	{	545	{
409	return ev_rt_now;	546	return ev_rt_now;
410	}	547	}
411	#endif	548	#endif
412		549
		550	void
		551	ev_sleep (ev_tstamp delay)
		552	{
		553	if (delay > 0.)
		554	{
		555	#if EV_USE_NANOSLEEP
		556	struct timespec ts;
		557
		558	ts.tv_sec = (time_t)delay;
		559	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
		560
		561	nanosleep (&ts, 0);
		562	#elif defined(_WIN32)
		563	Sleep ((unsigned long)(delay * 1e3));
		564	#else
		565	struct timeval tv;
		566
		567	tv.tv_sec = (time_t)delay;
		568	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
		569
		570	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
		571	/* somehting nto guaranteed by newer posix versions, but guaranteed */
		572	/* by older ones */
		573	select (0, 0, 0, 0, &tv);
		574	#endif
		575	}
		576	}
		577
		578	/*****************************************************************************/
		579
		580	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /
		581
413	int inline_size	582	int inline_size
414	array_nextsize (int elem, int cur, int cnt)	583	array_nextsize (int elem, int cur, int cnt)
415	{	584	{
416	int ncur = cur + 1;	585	int ncur = cur + 1;
417		586
418	do	587	do
419	ncur <<= 1;	588	ncur <<= 1;
420	while (cnt > ncur);	589	while (cnt > ncur);
421		590
422	/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */	591	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
423	if (elem * ncur > 4096)	592	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)
424	{	593	{
425	ncur *= elem;	594	ncur *= elem;
426	ncur = (ncur + elem + 4095 + sizeof (void ) 4) & ~4095;	595	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);
427	ncur = ncur - sizeof (void ) 4;	596	ncur = ncur - sizeof (void ) 4;
428	ncur /= elem;	597	ncur /= elem;
429	}	598	}
430		599
431	return ncur;	600	return ncur;
…		…
542	events \|= (unsigned char)w->events;	711	events \|= (unsigned char)w->events;
543		712
544	#if EV_SELECT_IS_WINSOCKET	713	#if EV_SELECT_IS_WINSOCKET
545	if (events)	714	if (events)
546	{	715	{
547	unsigned long argp;	716	unsigned long arg;
		717	#ifdef EV_FD_TO_WIN32_HANDLE
		718	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
		719	#else
548	anfd->handle = _get_osfhandle (fd);	720	anfd->handle = _get_osfhandle (fd);
		721	#endif
549	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));	722	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
550	}	723	}
551	#endif	724	#endif
552		725
553	{	726	{
554	unsigned char o_events = anfd->events;	727	unsigned char o_events = anfd->events;
…		…
607	{	780	{
608	int fd;	781	int fd;
609		782
610	for (fd = 0; fd < anfdmax; ++fd)	783	for (fd = 0; fd < anfdmax; ++fd)
611	if (anfds [fd].events)	784	if (anfds [fd].events)
612	if (!fd_valid (fd) == -1 && errno == EBADF)	785	if (!fd_valid (fd) && errno == EBADF)
613	fd_kill (EV_A_ fd);	786	fd_kill (EV_A_ fd);
614	}	787	}
615		788
616	/* called on ENOMEM in select/poll to kill some fds and retry */	789	/* called on ENOMEM in select/poll to kill some fds and retry */
617	static void noinline	790	static void noinline
…		…
641	}	814	}
642	}	815	}
643		816
644	/*****************************************************************************/	817	/*****************************************************************************/
645		818
		819	/*
		820	* the heap functions want a real array index. array index 0 uis guaranteed to not
		821	* be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
		822	* the branching factor of the d-tree.
		823	*/
		824
		825	/*
		826	* at the moment we allow libev the luxury of two heaps,
		827	* a small-code-size 2-heap one and a ~1.5kb larger 4-heap
		828	* which is more cache-efficient.
		829	* the difference is about 5% with 50000+ watchers.
		830	*/
		831	#if EV_USE_4HEAP
		832
		833	#define DHEAP 4
		834	#define HEAP0 (DHEAP - 1) /* index of first element in heap */
		835	#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
		836	#define UPHEAP_DONE(p,k) ((p) == (k))
		837
		838	/* away from the root */
646	void inline_speed	839	void inline_speed
647	upheap (WT *heap, int k)	840	downheap (ANHE *heap, int N, int k)
648	{	841	{
649	WT w = heap [k];	842	ANHE he = heap [k];
		843	ANHE *E = heap + N + HEAP0;
650		844
651	while (k)	845	for (;;)
652	{	846	{
653	int p = (k - 1) >> 1;	847	ev_tstamp minat;
		848	ANHE *minpos;
		849	ANHE pos = heap + DHEAP (k - HEAP0) + HEAP0 + 1;
654		850
655	if (heap [p]->at <= w->at)	851	/* find minimum child */
		852	if (expect_true (pos + DHEAP - 1 < E))
		853	{
		854	/* fast path / (minpos = pos + 0), (minat = ANHE_at (minpos));
		855	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		856	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		857	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		858	}
		859	else if (pos < E)
		860	{
		861	/* slow path / (minpos = pos + 0), (minat = ANHE_at (minpos));
		862	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
		863	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
		864	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
		865	}
		866	else
656	break;	867	break;
657		868
		869	if (ANHE_at (he) <= minat)
		870	break;
		871
		872	heap [k] = *minpos;
		873	ev_active (ANHE_w (*minpos)) = k;
		874
		875	k = minpos - heap;
		876	}
		877
		878	heap [k] = he;
		879	ev_active (ANHE_w (he)) = k;
		880	}
		881
		882	#else /* 4HEAP */
		883
		884	#define HEAP0 1
		885	#define HPARENT(k) ((k) >> 1)
		886	#define UPHEAP_DONE(p,k) (!(p))
		887
		888	/* away from the root */
		889	void inline_speed
		890	downheap (ANHE *heap, int N, int k)
		891	{
		892	ANHE he = heap [k];
		893
		894	for (;;)
		895	{
		896	int c = k << 1;
		897
		898	if (c > N + HEAP0 - 1)
		899	break;
		900
		901	c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
		902	? 1 : 0;
		903
		904	if (ANHE_at (he) <= ANHE_at (heap [c]))
		905	break;
		906
		907	heap [k] = heap [c];
		908	ev_active (ANHE_w (heap [k])) = k;
		909
		910	k = c;
		911	}
		912
		913	heap [k] = he;
		914	ev_active (ANHE_w (he)) = k;
		915	}
		916	#endif
		917
		918	/* towards the root */
		919	void inline_speed
		920	upheap (ANHE *heap, int k)
		921	{
		922	ANHE he = heap [k];
		923
		924	for (;;)
		925	{
		926	int p = HPARENT (k);
		927
		928	if (UPHEAP_DONE (p, k) \|\| ANHE_at (heap [p]) <= ANHE_at (he))
		929	break;
		930
658	heap [k] = heap [p];	931	heap [k] = heap [p];
659	((W)heap [k])->active = k + 1;	932	ev_active (ANHE_w (heap [k])) = k;
660	k = p;	933	k = p;
661	}	934	}
662		935
663	heap [k] = w;	936	heap [k] = he;
664	((W)heap [k])->active = k + 1;	937	ev_active (ANHE_w (he)) = k;
665	}
666
667	void inline_speed
668	downheap (WT *heap, int N, int k)
669	{
670	WT w = heap [k];
671
672	for (;;)
673	{
674	int c = (k << 1) + 1;
675
676	if (c >= N)
677	break;
678
679	c += c + 1 < N && heap [c]->at > heap [c + 1]->at
680	? 1 : 0;
681
682	if (w->at <= heap [c]->at)
683	break;
684
685	heap [k] = heap [c];
686	((W)heap [k])->active = k + 1;
687
688	k = c;
689	}
690
691	heap [k] = w;
692	((W)heap [k])->active = k + 1;
693	}	938	}
694		939
695	void inline_size	940	void inline_size
696	adjustheap (WT *heap, int N, int k)	941	adjustheap (ANHE *heap, int N, int k)
697	{	942	{
		943	if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k]))
698	upheap (heap, k);	944	upheap (heap, k);
		945	else
699	downheap (heap, N, k);	946	downheap (heap, N, k);
		947	}
		948
		949	/* rebuild the heap: this function is used only once and executed rarely */
		950	void inline_size
		951	reheap (ANHE *heap, int N)
		952	{
		953	int i;
		954
		955	/* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
		956	/* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
		957	for (i = 0; i < N; ++i)
		958	upheap (heap, i + HEAP0);
700	}	959	}
701		960
702	/*****************************************************************************/	961	/*****************************************************************************/
703		962
704	typedef struct	963	typedef struct
705	{	964	{
706	WL head;	965	WL head;
707	sig_atomic_t volatile gotsig;	966	EV_ATOMIC_T gotsig;
708	} ANSIG;	967	} ANSIG;
709		968
710	static ANSIG *signals;	969	static ANSIG *signals;
711	static int signalmax;	970	static int signalmax;
712		971
713	static int sigpipe [2];	972	static EV_ATOMIC_T gotsig;
714	static sig_atomic_t volatile gotsig;
715	static ev_io sigev;
716		973
717	void inline_size	974	void inline_size
718	signals_init (ANSIG *base, int count)	975	signals_init (ANSIG *base, int count)
719	{	976	{
720	while (count--)	977	while (count--)
…		…
724		981
725	++base;	982	++base;
726	}	983	}
727	}	984	}
728		985
729	static void	986	/*****************************************************************************/
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		987
780	void inline_speed	988	void inline_speed
781	fd_intern (int fd)	989	fd_intern (int fd)
782	{	990	{
783	#ifdef _WIN32	991	#ifdef _WIN32
784	int arg = 1;	992	unsigned long arg = 1;
785	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);	993	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
786	#else	994	#else
787	fcntl (fd, F_SETFD, FD_CLOEXEC);	995	fcntl (fd, F_SETFD, FD_CLOEXEC);
788	fcntl (fd, F_SETFL, O_NONBLOCK);	996	fcntl (fd, F_SETFL, O_NONBLOCK);
789	#endif	997	#endif
790	}	998	}
791		999
792	static void noinline	1000	static void noinline
793	siginit (EV_P)	1001	evpipe_init (EV_P)
794	{	1002	{
		1003	if (!ev_is_active (&pipeev))
		1004	{
		1005	#if EV_USE_EVENTFD
		1006	if ((evfd = eventfd (0, 0)) >= 0)
		1007	{
		1008	evpipe [0] = -1;
		1009	fd_intern (evfd);
		1010	ev_io_set (&pipeev, evfd, EV_READ);
		1011	}
		1012	else
		1013	#endif
		1014	{
		1015	while (pipe (evpipe))
		1016	syserr ("(libev) error creating signal/async pipe");
		1017
795	fd_intern (sigpipe [0]);	1018	fd_intern (evpipe [0]);
796	fd_intern (sigpipe [1]);	1019	fd_intern (evpipe [1]);
		1020	ev_io_set (&pipeev, evpipe [0], EV_READ);
		1021	}
797		1022
798	ev_io_set (&sigev, sigpipe [0], EV_READ);
799	ev_io_start (EV_A_ &sigev);	1023	ev_io_start (EV_A_ &pipeev);
800	ev_unref (EV_A); /* child watcher should not keep loop alive */	1024	ev_unref (EV_A); /* watcher should not keep loop alive */
		1025	}
		1026	}
		1027
		1028	void inline_size
		1029	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1030	{
		1031	if (!*flag)
		1032	{
		1033	int old_errno = errno; /* save errno because write might clobber it */
		1034
		1035	*flag = 1;
		1036
		1037	#if EV_USE_EVENTFD
		1038	if (evfd >= 0)
		1039	{
		1040	uint64_t counter = 1;
		1041	write (evfd, &counter, sizeof (uint64_t));
		1042	}
		1043	else
		1044	#endif
		1045	write (evpipe [1], &old_errno, 1);
		1046
		1047	errno = old_errno;
		1048	}
		1049	}
		1050
		1051	static void
		1052	pipecb (EV_P_ ev_io *iow, int revents)
		1053	{
		1054	#if EV_USE_EVENTFD
		1055	if (evfd >= 0)
		1056	{
		1057	uint64_t counter;
		1058	read (evfd, &counter, sizeof (uint64_t));
		1059	}
		1060	else
		1061	#endif
		1062	{
		1063	char dummy;
		1064	read (evpipe [0], &dummy, 1);
		1065	}
		1066
		1067	if (gotsig && ev_is_default_loop (EV_A))
		1068	{
		1069	int signum;
		1070	gotsig = 0;
		1071
		1072	for (signum = signalmax; signum--; )
		1073	if (signals [signum].gotsig)
		1074	ev_feed_signal_event (EV_A_ signum + 1);
		1075	}
		1076
		1077	#if EV_ASYNC_ENABLE
		1078	if (gotasync)
		1079	{
		1080	int i;
		1081	gotasync = 0;
		1082
		1083	for (i = asynccnt; i--; )
		1084	if (asyncs [i]->sent)
		1085	{
		1086	asyncs [i]->sent = 0;
		1087	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
		1088	}
		1089	}
		1090	#endif
801	}	1091	}
802		1092
803	/*****************************************************************************/	1093	/*****************************************************************************/
804		1094
		1095	static void
		1096	ev_sighandler (int signum)
		1097	{
		1098	#if EV_MULTIPLICITY
		1099	struct ev_loop *loop = &default_loop_struct;
		1100	#endif
		1101
		1102	#if _WIN32
		1103	signal (signum, ev_sighandler);
		1104	#endif
		1105
		1106	signals [signum - 1].gotsig = 1;
		1107	evpipe_write (EV_A_ &gotsig);
		1108	}
		1109
		1110	void noinline
		1111	ev_feed_signal_event (EV_P_ int signum)
		1112	{
		1113	WL w;
		1114
		1115	#if EV_MULTIPLICITY
		1116	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		1117	#endif
		1118
		1119	--signum;
		1120
		1121	if (signum < 0 \|\| signum >= signalmax)
		1122	return;
		1123
		1124	signals [signum].gotsig = 0;
		1125
		1126	for (w = signals [signum].head; w; w = w->next)
		1127	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		1128	}
		1129
		1130	/*****************************************************************************/
		1131
805	static WL childs [EV_PID_HASHSIZE];	1132	static WL childs [EV_PID_HASHSIZE];
806		1133
807	#ifndef _WIN32	1134	#ifndef _WIN32
808		1135
809	static ev_signal childev;	1136	static ev_signal childev;
810		1137
		1138	#ifndef WIFCONTINUED
		1139	# define WIFCONTINUED(status) 0
		1140	#endif
		1141
811	void inline_speed	1142	void inline_speed
812	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)	1143	child_reap (EV_P_ int chain, int pid, int status)
813	{	1144	{
814	ev_child *w;	1145	ev_child *w;
		1146	int traced = WIFSTOPPED (status) \|\| WIFCONTINUED (status);
815		1147
816	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)	1148	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1149	{
817	if (w->pid == pid \|\| !w->pid)	1150	if ((w->pid == pid \|\| !w->pid)
		1151	&& (!traced \|\| (w->flags & 1)))
818	{	1152	{
819	ev_set_priority (w, ev_priority (sw)); /* need to do it now */	1153	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;	1154	w->rpid = pid;
821	w->rstatus = status;	1155	w->rstatus = status;
822	ev_feed_event (EV_A_ (W)w, EV_CHILD);	1156	ev_feed_event (EV_A_ (W)w, EV_CHILD);
823	}	1157	}
		1158	}
824	}	1159	}
825		1160
826	#ifndef WCONTINUED	1161	#ifndef WCONTINUED
827	# define WCONTINUED 0	1162	# define WCONTINUED 0
828	#endif	1163	#endif
…		…
837	if (!WCONTINUED	1172	if (!WCONTINUED
838	\|\| errno != EINVAL	1173	\|\| errno != EINVAL
839	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))	1174	\|\| 0 >= (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED)))
840	return;	1175	return;
841		1176
842	/* make sure we are called again until all childs have been reaped */	1177	/* 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 */	1178	/* 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);	1179	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
845		1180
846	child_reap (EV_A_ sw, pid, pid, status);	1181	child_reap (EV_A_ pid, pid, status);
847	if (EV_PID_HASHSIZE > 1)	1182	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 */	1183	child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
849	}	1184	}
850		1185
851	#endif	1186	#endif
852		1187
853	/*****************************************************************************/	1188	/*****************************************************************************/
…		…
925	}	1260	}
926		1261
927	unsigned int	1262	unsigned int
928	ev_embeddable_backends (void)	1263	ev_embeddable_backends (void)
929	{	1264	{
930	return EVBACKEND_EPOLL	1265	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
931	\| EVBACKEND_KQUEUE	1266
932	\| EVBACKEND_PORT;	1267	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
		1268	/* please fix it and tell me how to detect the fix */
		1269	flags &= ~EVBACKEND_EPOLL;
		1270
		1271	return flags;
933	}	1272	}
934		1273
935	unsigned int	1274	unsigned int
936	ev_backend (EV_P)	1275	ev_backend (EV_P)
937	{	1276	{
…		…
940		1279
941	unsigned int	1280	unsigned int
942	ev_loop_count (EV_P)	1281	ev_loop_count (EV_P)
943	{	1282	{
944	return loop_count;	1283	return loop_count;
		1284	}
		1285
		1286	void
		1287	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
		1288	{
		1289	io_blocktime = interval;
		1290	}
		1291
		1292	void
		1293	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
		1294	{
		1295	timeout_blocktime = interval;
945	}	1296	}
946		1297
947	static void noinline	1298	static void noinline
948	loop_init (EV_P_ unsigned int flags)	1299	loop_init (EV_P_ unsigned int flags)
949	{	1300	{
…		…
955	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	1306	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
956	have_monotonic = 1;	1307	have_monotonic = 1;
957	}	1308	}
958	#endif	1309	#endif
959		1310
960	ev_rt_now = ev_time ();	1311	ev_rt_now = ev_time ();
961	mn_now = get_clock ();	1312	mn_now = get_clock ();
962	now_floor = mn_now;	1313	now_floor = mn_now;
963	rtmn_diff = ev_rt_now - mn_now;	1314	rtmn_diff = ev_rt_now - mn_now;
		1315
		1316	io_blocktime = 0.;
		1317	timeout_blocktime = 0.;
		1318	backend = 0;
		1319	backend_fd = -1;
		1320	gotasync = 0;
		1321	#if EV_USE_INOTIFY
		1322	fs_fd = -2;
		1323	#endif
964		1324
965	/* pid check not overridable via env */	1325	/* pid check not overridable via env */
966	#ifndef _WIN32	1326	#ifndef _WIN32
967	if (flags & EVFLAG_FORKCHECK)	1327	if (flags & EVFLAG_FORKCHECK)
968	curpid = getpid ();	1328	curpid = getpid ();
…		…
971	if (!(flags & EVFLAG_NOENV)	1331	if (!(flags & EVFLAG_NOENV)
972	&& !enable_secure ()	1332	&& !enable_secure ()
973	&& getenv ("LIBEV_FLAGS"))	1333	&& getenv ("LIBEV_FLAGS"))
974	flags = atoi (getenv ("LIBEV_FLAGS"));	1334	flags = atoi (getenv ("LIBEV_FLAGS"));
975		1335
976	if (!(flags & 0x0000ffffUL))	1336	if (!(flags & 0x0000ffffU))
977	flags \|= ev_recommended_backends ();	1337	flags \|= ev_recommended_backends ();
978
979	backend = 0;
980	backend_fd = -1;
981	#if EV_USE_INOTIFY
982	fs_fd = -2;
983	#endif
984		1338
985	#if EV_USE_PORT	1339	#if EV_USE_PORT
986	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1340	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987	#endif	1341	#endif
988	#if EV_USE_KQUEUE	1342	#if EV_USE_KQUEUE
…		…
996	#endif	1350	#endif
997	#if EV_USE_SELECT	1351	#if EV_USE_SELECT
998	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	1352	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
999	#endif	1353	#endif
1000		1354
1001	ev_init (&sigev, sigcb);	1355	ev_init (&pipeev, pipecb);
1002	ev_set_priority (&sigev, EV_MAXPRI);	1356	ev_set_priority (&pipeev, EV_MAXPRI);
1003	}	1357	}
1004	}	1358	}
1005		1359
1006	static void noinline	1360	static void noinline
1007	loop_destroy (EV_P)	1361	loop_destroy (EV_P)
1008	{	1362	{
1009	int i;	1363	int i;
		1364
		1365	if (ev_is_active (&pipeev))
		1366	{
		1367	ev_ref (EV_A); /* signal watcher */
		1368	ev_io_stop (EV_A_ &pipeev);
		1369
		1370	#if EV_USE_EVENTFD
		1371	if (evfd >= 0)
		1372	close (evfd);
		1373	#endif
		1374
		1375	if (evpipe [0] >= 0)
		1376	{
		1377	close (evpipe [0]);
		1378	close (evpipe [1]);
		1379	}
		1380	}
1010		1381
1011	#if EV_USE_INOTIFY	1382	#if EV_USE_INOTIFY
1012	if (fs_fd >= 0)	1383	if (fs_fd >= 0)
1013	close (fs_fd);	1384	close (fs_fd);
1014	#endif	1385	#endif
…		…
1037	array_free (pending, [i]);	1408	array_free (pending, [i]);
1038	#if EV_IDLE_ENABLE	1409	#if EV_IDLE_ENABLE
1039	array_free (idle, [i]);	1410	array_free (idle, [i]);
1040	#endif	1411	#endif
1041	}	1412	}
		1413
		1414	ev_free (anfds); anfdmax = 0;
1042		1415
1043	/* have to use the microsoft-never-gets-it-right macro */	1416	/* have to use the microsoft-never-gets-it-right macro */
1044	array_free (fdchange, EMPTY);	1417	array_free (fdchange, EMPTY);
1045	array_free (timer, EMPTY);	1418	array_free (timer, EMPTY);
1046	#if EV_PERIODIC_ENABLE	1419	#if EV_PERIODIC_ENABLE
1047	array_free (periodic, EMPTY);	1420	array_free (periodic, EMPTY);
1048	#endif	1421	#endif
		1422	#if EV_FORK_ENABLE
		1423	array_free (fork, EMPTY);
		1424	#endif
1049	array_free (prepare, EMPTY);	1425	array_free (prepare, EMPTY);
1050	array_free (check, EMPTY);	1426	array_free (check, EMPTY);
		1427	#if EV_ASYNC_ENABLE
		1428	array_free (async, EMPTY);
		1429	#endif
1051		1430
1052	backend = 0;	1431	backend = 0;
1053	}	1432	}
1054		1433
		1434	#if EV_USE_INOTIFY
1055	void inline_size infy_fork (EV_P);	1435	void inline_size infy_fork (EV_P);
		1436	#endif
1056		1437
1057	void inline_size	1438	void inline_size
1058	loop_fork (EV_P)	1439	loop_fork (EV_P)
1059	{	1440	{
1060	#if EV_USE_PORT	1441	#if EV_USE_PORT
…		…
1068	#endif	1449	#endif
1069	#if EV_USE_INOTIFY	1450	#if EV_USE_INOTIFY
1070	infy_fork (EV_A);	1451	infy_fork (EV_A);
1071	#endif	1452	#endif
1072		1453
1073	if (ev_is_active (&sigev))	1454	if (ev_is_active (&pipeev))
1074	{	1455	{
1075	/* default loop */	1456	/* this "locks" the handlers against writing to the pipe */
		1457	/* while we modify the fd vars */
		1458	gotsig = 1;
		1459	#if EV_ASYNC_ENABLE
		1460	gotasync = 1;
		1461	#endif
1076		1462
1077	ev_ref (EV_A);	1463	ev_ref (EV_A);
1078	ev_io_stop (EV_A_ &sigev);	1464	ev_io_stop (EV_A_ &pipeev);
		1465
		1466	#if EV_USE_EVENTFD
		1467	if (evfd >= 0)
		1468	close (evfd);
		1469	#endif
		1470
		1471	if (evpipe [0] >= 0)
		1472	{
1079	close (sigpipe [0]);	1473	close (evpipe [0]);
1080	close (sigpipe [1]);	1474	close (evpipe [1]);
		1475	}
1081		1476
1082	while (pipe (sigpipe))
1083	syserr ("(libev) error creating pipe");
1084
1085	siginit (EV_A);	1477	evpipe_init (EV_A);
		1478	/* now iterate over everything, in case we missed something */
		1479	pipecb (EV_A_ &pipeev, EV_READ);
1086	}	1480	}
1087		1481
1088	postfork = 0;	1482	postfork = 0;
1089	}	1483	}
1090		1484
1091	#if EV_MULTIPLICITY	1485	#if EV_MULTIPLICITY
		1486
1092	struct ev_loop *	1487	struct ev_loop *
1093	ev_loop_new (unsigned int flags)	1488	ev_loop_new (unsigned int flags)
1094	{	1489	{
1095	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	1490	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
1096		1491
…		…
1112	}	1507	}
1113		1508
1114	void	1509	void
1115	ev_loop_fork (EV_P)	1510	ev_loop_fork (EV_P)
1116	{	1511	{
1117	postfork = 1;	1512	postfork = 1; /* must be in line with ev_default_fork */
1118	}	1513	}
1119		1514
		1515	#if EV_VERIFY
		1516	static void noinline
		1517	verify_watcher (EV_P_ W w)
		1518	{
		1519	assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
		1520
		1521	if (w->pending)
		1522	assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
		1523	}
		1524
		1525	static void noinline
		1526	verify_heap (EV_P_ ANHE *heap, int N)
		1527	{
		1528	int i;
		1529
		1530	for (i = HEAP0; i < N + HEAP0; ++i)
		1531	{
		1532	assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
		1533	assert (("heap condition violated", i == HEAP0 \|\| ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
		1534	assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
		1535
		1536	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
		1537	}
		1538	}
		1539
		1540	static void noinline
		1541	array_verify (EV_P_ W *ws, int cnt)
		1542	{
		1543	while (cnt--)
		1544	{
		1545	assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1));
		1546	verify_watcher (EV_A_ ws [cnt]);
		1547	}
		1548	}
		1549	#endif
		1550
		1551	void
		1552	ev_loop_verify (EV_P)
		1553	{
		1554	#if EV_VERIFY
		1555	int i;
		1556	WL w;
		1557
		1558	assert (activecnt >= -1);
		1559
		1560	assert (fdchangemax >= fdchangecnt);
		1561	for (i = 0; i < fdchangecnt; ++i)
		1562	assert (("negative fd in fdchanges", fdchanges [i] >= 0));
		1563
		1564	assert (anfdmax >= 0);
		1565	for (i = 0; i < anfdmax; ++i)
		1566	for (w = anfds [i].head; w; w = w->next)
		1567	{
		1568	verify_watcher (EV_A_ (W)w);
		1569	assert (("inactive fd watcher on anfd list", ev_active (w) == 1));
		1570	assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
		1571	}
		1572
		1573	assert (timermax >= timercnt);
		1574	verify_heap (EV_A_ timers, timercnt);
		1575
		1576	#if EV_PERIODIC_ENABLE
		1577	assert (periodicmax >= periodiccnt);
		1578	verify_heap (EV_A_ periodics, periodiccnt);
		1579	#endif
		1580
		1581	for (i = NUMPRI; i--; )
		1582	{
		1583	assert (pendingmax [i] >= pendingcnt [i]);
		1584	#if EV_IDLE_ENABLE
		1585	assert (idleall >= 0);
		1586	assert (idlemax [i] >= idlecnt [i]);
		1587	array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
		1588	#endif
		1589	}
		1590
		1591	#if EV_FORK_ENABLE
		1592	assert (forkmax >= forkcnt);
		1593	array_verify (EV_A_ (W *)forks, forkcnt);
		1594	#endif
		1595
		1596	#if EV_ASYNC_ENABLE
		1597	assert (asyncmax >= asynccnt);
		1598	array_verify (EV_A_ (W *)asyncs, asynccnt);
		1599	#endif
		1600
		1601	assert (preparemax >= preparecnt);
		1602	array_verify (EV_A_ (W *)prepares, preparecnt);
		1603
		1604	assert (checkmax >= checkcnt);
		1605	array_verify (EV_A_ (W *)checks, checkcnt);
		1606
		1607	# if 0
		1608	for (w = (ev_child )childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child )((WL)w)->next)
		1609	for (signum = signalmax; signum--; ) if (signals [signum].gotsig)
1120	#endif	1610	# endif
		1611	#endif
		1612	}
		1613
		1614	#endif /* multiplicity */
1121		1615
1122	#if EV_MULTIPLICITY	1616	#if EV_MULTIPLICITY
1123	struct ev_loop *	1617	struct ev_loop *
1124	ev_default_loop_init (unsigned int flags)	1618	ev_default_loop_init (unsigned int flags)
1125	#else	1619	#else
1126	int	1620	int
1127	ev_default_loop (unsigned int flags)	1621	ev_default_loop (unsigned int flags)
1128	#endif	1622	#endif
1129	{	1623	{
1130	if (sigpipe [0] == sigpipe [1])
1131	if (pipe (sigpipe))
1132	return 0;
1133
1134	if (!ev_default_loop_ptr)	1624	if (!ev_default_loop_ptr)
1135	{	1625	{
1136	#if EV_MULTIPLICITY	1626	#if EV_MULTIPLICITY
1137	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;	1627	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1138	#else	1628	#else
…		…
1141		1631
1142	loop_init (EV_A_ flags);	1632	loop_init (EV_A_ flags);
1143		1633
1144	if (ev_backend (EV_A))	1634	if (ev_backend (EV_A))
1145	{	1635	{
1146	siginit (EV_A);
1147
1148	#ifndef _WIN32	1636	#ifndef _WIN32
1149	ev_signal_init (&childev, childcb, SIGCHLD);	1637	ev_signal_init (&childev, childcb, SIGCHLD);
1150	ev_set_priority (&childev, EV_MAXPRI);	1638	ev_set_priority (&childev, EV_MAXPRI);
1151	ev_signal_start (EV_A_ &childev);	1639	ev_signal_start (EV_A_ &childev);
1152	ev_unref (EV_A); /* child watcher should not keep loop alive */	1640	ev_unref (EV_A); /* child watcher should not keep loop alive */
…		…
1169	#ifndef _WIN32	1657	#ifndef _WIN32
1170	ev_ref (EV_A); /* child watcher */	1658	ev_ref (EV_A); /* child watcher */
1171	ev_signal_stop (EV_A_ &childev);	1659	ev_signal_stop (EV_A_ &childev);
1172	#endif	1660	#endif
1173		1661
1174	ev_ref (EV_A); /* signal watcher */
1175	ev_io_stop (EV_A_ &sigev);
1176
1177	close (sigpipe [0]); sigpipe [0] = 0;
1178	close (sigpipe [1]); sigpipe [1] = 0;
1179
1180	loop_destroy (EV_A);	1662	loop_destroy (EV_A);
1181	}	1663	}
1182		1664
1183	void	1665	void
1184	ev_default_fork (void)	1666	ev_default_fork (void)
…		…
1186	#if EV_MULTIPLICITY	1668	#if EV_MULTIPLICITY
1187	struct ev_loop *loop = ev_default_loop_ptr;	1669	struct ev_loop *loop = ev_default_loop_ptr;
1188	#endif	1670	#endif
1189		1671
1190	if (backend)	1672	if (backend)
1191	postfork = 1;	1673	postfork = 1; /* must be in line with ev_loop_fork */
1192	}	1674	}
1193		1675
1194	/*****************************************************************************/	1676	/*****************************************************************************/
1195		1677
1196	void	1678	void
…		…
1213	{	1695	{
1214	/assert (("non-pending watcher on pending list", p->w->pending));/	1696	/assert (("non-pending watcher on pending list", p->w->pending));/
1215		1697
1216	p->w->pending = 0;	1698	p->w->pending = 0;
1217	EV_CB_INVOKE (p->w, p->events);	1699	EV_CB_INVOKE (p->w, p->events);
		1700	EV_FREQUENT_CHECK;
1218	}	1701	}
1219	}	1702	}
1220	}	1703	}
1221
1222	void inline_size
1223	timers_reify (EV_P)
1224	{
1225	while (timercnt && ((WT)timers [0])->at <= mn_now)
1226	{
1227	ev_timer w = (ev_timer )timers [0];
1228
1229	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
1230
1231	/* first reschedule or stop timer */
1232	if (w->repeat)
1233	{
1234	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1235
1236	((WT)w)->at += w->repeat;
1237	if (((WT)w)->at < mn_now)
1238	((WT)w)->at = mn_now;
1239
1240	downheap (timers, timercnt, 0);
1241	}
1242	else
1243	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1244
1245	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1246	}
1247	}
1248
1249	#if EV_PERIODIC_ENABLE
1250	void inline_size
1251	periodics_reify (EV_P)
1252	{
1253	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1254	{
1255	ev_periodic w = (ev_periodic )periodics [0];
1256
1257	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
1258
1259	/* first reschedule or stop timer */
1260	if (w->reschedule_cb)
1261	{
1262	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1263	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1264	downheap (periodics, periodiccnt, 0);
1265	}
1266	else if (w->interval)
1267	{
1268	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1269	if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1270	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1271	downheap (periodics, periodiccnt, 0);
1272	}
1273	else
1274	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1275
1276	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1277	}
1278	}
1279
1280	static void noinline
1281	periodics_reschedule (EV_P)
1282	{
1283	int i;
1284
1285	/* adjust periodics after time jump */
1286	for (i = 0; i < periodiccnt; ++i)
1287	{
1288	ev_periodic w = (ev_periodic )periodics [i];
1289
1290	if (w->reschedule_cb)
1291	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1292	else if (w->interval)
1293	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1294	}
1295
1296	/* now rebuild the heap */
1297	for (i = periodiccnt >> 1; i--; )
1298	downheap (periodics, periodiccnt, i);
1299	}
1300	#endif
1301		1704
1302	#if EV_IDLE_ENABLE	1705	#if EV_IDLE_ENABLE
1303	void inline_size	1706	void inline_size
1304	idle_reify (EV_P)	1707	idle_reify (EV_P)
1305	{	1708	{
…		…
1317	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);	1720	queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1318	break;	1721	break;
1319	}	1722	}
1320	}	1723	}
1321	}	1724	}
		1725	}
		1726	#endif
		1727
		1728	void inline_size
		1729	timers_reify (EV_P)
		1730	{
		1731	EV_FREQUENT_CHECK;
		1732
		1733	while (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
		1734	{
		1735	ev_timer w = (ev_timer )ANHE_w (timers [HEAP0]);
		1736
		1737	/assert (("inactive timer on timer heap detected", ev_is_active (w)));/
		1738
		1739	/* first reschedule or stop timer */
		1740	if (w->repeat)
		1741	{
		1742	ev_at (w) += w->repeat;
		1743	if (ev_at (w) < mn_now)
		1744	ev_at (w) = mn_now;
		1745
		1746	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1747
		1748	ANHE_at_cache (timers [HEAP0]);
		1749	downheap (timers, timercnt, HEAP0);
		1750	}
		1751	else
		1752	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
		1753
		1754	EV_FREQUENT_CHECK;
		1755	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
		1756	}
		1757	}
		1758
		1759	#if EV_PERIODIC_ENABLE
		1760	void inline_size
		1761	periodics_reify (EV_P)
		1762	{
		1763	EV_FREQUENT_CHECK;
		1764
		1765	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
		1766	{
		1767	ev_periodic w = (ev_periodic )ANHE_w (periodics [HEAP0]);
		1768
		1769	/assert (("inactive timer on periodic heap detected", ev_is_active (w)));/
		1770
		1771	/* first reschedule or stop timer */
		1772	if (w->reschedule_cb)
		1773	{
		1774	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1775
		1776	assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
		1777
		1778	ANHE_at_cache (periodics [HEAP0]);
		1779	downheap (periodics, periodiccnt, HEAP0);
		1780	}
		1781	else if (w->interval)
		1782	{
		1783	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1784	/* if next trigger time is not sufficiently in the future, put it there */
		1785	/* this might happen because of floating point inexactness */
		1786	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
		1787	{
		1788	ev_at (w) += w->interval;
		1789
		1790	/* if interval is unreasonably low we might still have a time in the past */
		1791	/* so correct this. this will make the periodic very inexact, but the user */
		1792	/* has effectively asked to get triggered more often than possible */
		1793	if (ev_at (w) < ev_rt_now)
		1794	ev_at (w) = ev_rt_now;
		1795	}
		1796
		1797	ANHE_at_cache (periodics [HEAP0]);
		1798	downheap (periodics, periodiccnt, HEAP0);
		1799	}
		1800	else
		1801	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
		1802
		1803	EV_FREQUENT_CHECK;
		1804	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
		1805	}
		1806	}
		1807
		1808	static void noinline
		1809	periodics_reschedule (EV_P)
		1810	{
		1811	int i;
		1812
		1813	/* adjust periodics after time jump */
		1814	for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
		1815	{
		1816	ev_periodic w = (ev_periodic )ANHE_w (periodics [i]);
		1817
		1818	if (w->reschedule_cb)
		1819	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
		1820	else if (w->interval)
		1821	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
		1822
		1823	ANHE_at_cache (periodics [i]);
		1824	}
		1825
		1826	reheap (periodics, periodiccnt);
1322	}	1827	}
1323	#endif	1828	#endif
1324		1829
1325	void inline_speed	1830	void inline_speed
1326	time_update (EV_P_ ev_tstamp max_block)	1831	time_update (EV_P_ ev_tstamp max_block)
…		…
1355	*/	1860	*/
1356	for (i = 4; --i; )	1861	for (i = 4; --i; )
1357	{	1862	{
1358	rtmn_diff = ev_rt_now - mn_now;	1863	rtmn_diff = ev_rt_now - mn_now;
1359		1864
1360	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1865	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
1361	return; /* all is well */	1866	return; /* all is well */
1362		1867
1363	ev_rt_now = ev_time ();	1868	ev_rt_now = ev_time ();
1364	mn_now = get_clock ();	1869	mn_now = get_clock ();
1365	now_floor = mn_now;	1870	now_floor = mn_now;
…		…
1381	#if EV_PERIODIC_ENABLE	1886	#if EV_PERIODIC_ENABLE
1382	periodics_reschedule (EV_A);	1887	periodics_reschedule (EV_A);
1383	#endif	1888	#endif
1384	/* adjust timers. this is easy, as the offset is the same for all of them */	1889	/* adjust timers. this is easy, as the offset is the same for all of them */
1385	for (i = 0; i < timercnt; ++i)	1890	for (i = 0; i < timercnt; ++i)
		1891	{
		1892	ANHE *he = timers + i + HEAP0;
1386	((WT)timers [i])->at += ev_rt_now - mn_now;	1893	ANHE_w (*he)->at += ev_rt_now - mn_now;
		1894	ANHE_at_cache (*he);
		1895	}
1387	}	1896	}
1388		1897
1389	mn_now = ev_rt_now;	1898	mn_now = ev_rt_now;
1390	}	1899	}
1391	}	1900	}
…		…
1405	static int loop_done;	1914	static int loop_done;
1406		1915
1407	void	1916	void
1408	ev_loop (EV_P_ int flags)	1917	ev_loop (EV_P_ int flags)
1409	{	1918	{
1410	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)	1919	loop_done = EVUNLOOP_CANCEL;
1411	? EVUNLOOP_ONE
1412	: EVUNLOOP_CANCEL;
1413		1920
1414	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */	1921	call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1415		1922
1416	do	1923	do
1417	{	1924	{
		1925	#if EV_VERIFY >= 2
		1926	ev_loop_verify (EV_A);
		1927	#endif
		1928
1418	#ifndef _WIN32	1929	#ifndef _WIN32
1419	if (expect_false (curpid)) /* penalise the forking check even more */	1930	if (expect_false (curpid)) /* penalise the forking check even more */
1420	if (expect_false (getpid () != curpid))	1931	if (expect_false (getpid () != curpid))
1421	{	1932	{
1422	curpid = getpid ();	1933	curpid = getpid ();
…		…
1451	/* update fd-related kernel structures */	1962	/* update fd-related kernel structures */
1452	fd_reify (EV_A);	1963	fd_reify (EV_A);
1453		1964
1454	/* calculate blocking time */	1965	/* calculate blocking time */
1455	{	1966	{
1456	ev_tstamp block;	1967	ev_tstamp waittime = 0.;
		1968	ev_tstamp sleeptime = 0.;
1457		1969
1458	if (expect_false (flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt))	1970	if (expect_true (!(flags & EVLOOP_NONBLOCK \|\| idleall \|\| !activecnt)))
1459	block = 0.; /* do not block at all */
1460	else
1461	{	1971	{
1462	/* update time to cancel out callback processing overhead */	1972	/* update time to cancel out callback processing overhead */
1463	time_update (EV_A_ 1e100);	1973	time_update (EV_A_ 1e100);
1464		1974
1465	block = MAX_BLOCKTIME;	1975	waittime = MAX_BLOCKTIME;
1466		1976
1467	if (timercnt)	1977	if (timercnt)
1468	{	1978	{
1469	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;	1979	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
1470	if (block > to) block = to;	1980	if (waittime > to) waittime = to;
1471	}	1981	}
1472		1982
1473	#if EV_PERIODIC_ENABLE	1983	#if EV_PERIODIC_ENABLE
1474	if (periodiccnt)	1984	if (periodiccnt)
1475	{	1985	{
1476	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;	1986	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1477	if (block > to) block = to;	1987	if (waittime > to) waittime = to;
1478	}	1988	}
1479	#endif	1989	#endif
1480		1990
1481	if (expect_false (block < 0.)) block = 0.;	1991	if (expect_false (waittime < timeout_blocktime))
		1992	waittime = timeout_blocktime;
		1993
		1994	sleeptime = waittime - backend_fudge;
		1995
		1996	if (expect_true (sleeptime > io_blocktime))
		1997	sleeptime = io_blocktime;
		1998
		1999	if (sleeptime)
		2000	{
		2001	ev_sleep (sleeptime);
		2002	waittime -= sleeptime;
		2003	}
1482	}	2004	}
1483		2005
1484	++loop_count;	2006	++loop_count;
1485	backend_poll (EV_A_ block);	2007	backend_poll (EV_A_ waittime);
1486		2008
1487	/* update ev_rt_now, do magic */	2009	/* update ev_rt_now, do magic */
1488	time_update (EV_A_ block);	2010	time_update (EV_A_ waittime + sleeptime);
1489	}	2011	}
1490		2012
1491	/* queue pending timers and reschedule them */	2013	/* queue pending timers and reschedule them */
1492	timers_reify (EV_A); /* relative timers called last */	2014	timers_reify (EV_A); /* relative timers called last */
1493	#if EV_PERIODIC_ENABLE	2015	#if EV_PERIODIC_ENABLE
…		…
1502	/* queue check watchers, to be executed first */	2024	/* queue check watchers, to be executed first */
1503	if (expect_false (checkcnt))	2025	if (expect_false (checkcnt))
1504	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	2026	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1505		2027
1506	call_pending (EV_A);	2028	call_pending (EV_A);
1507
1508	}	2029	}
1509	while (expect_true (activecnt && !loop_done));	2030	while (expect_true (
		2031	activecnt
		2032	&& !loop_done
		2033	&& !(flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK))
		2034	));
1510		2035
1511	if (loop_done == EVUNLOOP_ONE)	2036	if (loop_done == EVUNLOOP_ONE)
1512	loop_done = EVUNLOOP_CANCEL;	2037	loop_done = EVUNLOOP_CANCEL;
1513	}	2038	}
1514		2039
…		…
1603	if (expect_false (ev_is_active (w)))	2128	if (expect_false (ev_is_active (w)))
1604	return;	2129	return;
1605		2130
1606	assert (("ev_io_start called with negative fd", fd >= 0));	2131	assert (("ev_io_start called with negative fd", fd >= 0));
1607		2132
		2133	EV_FREQUENT_CHECK;
		2134
1608	ev_start (EV_A_ (W)w, 1);	2135	ev_start (EV_A_ (W)w, 1);
1609	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);	2136	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1610	wlist_add (&anfds[fd].head, (WL)w);	2137	wlist_add (&anfds[fd].head, (WL)w);
1611		2138
1612	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);	2139	fd_change (EV_A_ fd, w->events & EV_IOFDSET \| 1);
1613	w->events &= ~EV_IOFDSET;	2140	w->events &= ~EV_IOFDSET;
		2141
		2142	EV_FREQUENT_CHECK;
1614	}	2143	}
1615		2144
1616	void noinline	2145	void noinline
1617	ev_io_stop (EV_P_ ev_io *w)	2146	ev_io_stop (EV_P_ ev_io *w)
1618	{	2147	{
1619	clear_pending (EV_A_ (W)w);	2148	clear_pending (EV_A_ (W)w);
1620	if (expect_false (!ev_is_active (w)))	2149	if (expect_false (!ev_is_active (w)))
1621	return;	2150	return;
1622		2151
1623	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	2152	assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		2153
		2154	EV_FREQUENT_CHECK;
1624		2155
1625	wlist_del (&anfds[w->fd].head, (WL)w);	2156	wlist_del (&anfds[w->fd].head, (WL)w);
1626	ev_stop (EV_A_ (W)w);	2157	ev_stop (EV_A_ (W)w);
1627		2158
1628	fd_change (EV_A_ w->fd, 1);	2159	fd_change (EV_A_ w->fd, 1);
		2160
		2161	EV_FREQUENT_CHECK;
1629	}	2162	}
1630		2163
1631	void noinline	2164	void noinline
1632	ev_timer_start (EV_P_ ev_timer *w)	2165	ev_timer_start (EV_P_ ev_timer *w)
1633	{	2166	{
1634	if (expect_false (ev_is_active (w)))	2167	if (expect_false (ev_is_active (w)))
1635	return;	2168	return;
1636		2169
1637	((WT)w)->at += mn_now;	2170	ev_at (w) += mn_now;
1638		2171
1639	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	2172	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1640		2173
		2174	EV_FREQUENT_CHECK;
		2175
		2176	++timercnt;
1641	ev_start (EV_A_ (W)w, ++timercnt);	2177	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
1642	array_needsize (WT, timers, timermax, timercnt, EMPTY2);	2178	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
1643	timers [timercnt - 1] = (WT)w;	2179	ANHE_w (timers [ev_active (w)]) = (WT)w;
1644	upheap (timers, timercnt - 1);	2180	ANHE_at_cache (timers [ev_active (w)]);
		2181	upheap (timers, ev_active (w));
1645		2182
		2183	EV_FREQUENT_CHECK;
		2184
1646	/assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));/	2185	/assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));/
1647	}	2186	}
1648		2187
1649	void noinline	2188	void noinline
1650	ev_timer_stop (EV_P_ ev_timer *w)	2189	ev_timer_stop (EV_P_ ev_timer *w)
1651	{	2190	{
1652	clear_pending (EV_A_ (W)w);	2191	clear_pending (EV_A_ (W)w);
1653	if (expect_false (!ev_is_active (w)))	2192	if (expect_false (!ev_is_active (w)))
1654	return;	2193	return;
1655		2194
1656	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));	2195	EV_FREQUENT_CHECK;
1657		2196
1658	{	2197	{
1659	int active = ((W)w)->active;	2198	int active = ev_active (w);
1660		2199
		2200	assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
		2201
		2202	--timercnt;
		2203
1661	if (expect_true (--active < --timercnt))	2204	if (expect_true (active < timercnt + HEAP0))
1662	{	2205	{
1663	timers [active] = timers [timercnt];	2206	timers [active] = timers [timercnt + HEAP0];
1664	adjustheap (timers, timercnt, active);	2207	adjustheap (timers, timercnt, active);
1665	}	2208	}
1666	}	2209	}
1667		2210
1668	((WT)w)->at -= mn_now;	2211	EV_FREQUENT_CHECK;
		2212
		2213	ev_at (w) -= mn_now;
1669		2214
1670	ev_stop (EV_A_ (W)w);	2215	ev_stop (EV_A_ (W)w);
1671	}	2216	}
1672		2217
1673	void noinline	2218	void noinline
1674	ev_timer_again (EV_P_ ev_timer *w)	2219	ev_timer_again (EV_P_ ev_timer *w)
1675	{	2220	{
		2221	EV_FREQUENT_CHECK;
		2222
1676	if (ev_is_active (w))	2223	if (ev_is_active (w))
1677	{	2224	{
1678	if (w->repeat)	2225	if (w->repeat)
1679	{	2226	{
1680	((WT)w)->at = mn_now + w->repeat;	2227	ev_at (w) = mn_now + w->repeat;
		2228	ANHE_at_cache (timers [ev_active (w)]);
1681	adjustheap (timers, timercnt, ((W)w)->active - 1);	2229	adjustheap (timers, timercnt, ev_active (w));
1682	}	2230	}
1683	else	2231	else
1684	ev_timer_stop (EV_A_ w);	2232	ev_timer_stop (EV_A_ w);
1685	}	2233	}
1686	else if (w->repeat)	2234	else if (w->repeat)
1687	{	2235	{
1688	w->at = w->repeat;	2236	ev_at (w) = w->repeat;
1689	ev_timer_start (EV_A_ w);	2237	ev_timer_start (EV_A_ w);
1690	}	2238	}
		2239
		2240	EV_FREQUENT_CHECK;
1691	}	2241	}
1692		2242
1693	#if EV_PERIODIC_ENABLE	2243	#if EV_PERIODIC_ENABLE
1694	void noinline	2244	void noinline
1695	ev_periodic_start (EV_P_ ev_periodic *w)	2245	ev_periodic_start (EV_P_ ev_periodic *w)
1696	{	2246	{
1697	if (expect_false (ev_is_active (w)))	2247	if (expect_false (ev_is_active (w)))
1698	return;	2248	return;
1699		2249
1700	if (w->reschedule_cb)	2250	if (w->reschedule_cb)
1701	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	2251	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1702	else if (w->interval)	2252	else if (w->interval)
1703	{	2253	{
1704	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	2254	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1705	/* this formula differs from the one in periodic_reify because we do not always round up */	2255	/* this formula differs from the one in periodic_reify because we do not always round up */
1706	((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2256	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1707	}	2257	}
1708	else	2258	else
1709	((WT)w)->at = w->offset;	2259	ev_at (w) = w->offset;
1710		2260
		2261	EV_FREQUENT_CHECK;
		2262
		2263	++periodiccnt;
1711	ev_start (EV_A_ (W)w, ++periodiccnt);	2264	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
1712	array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);	2265	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
1713	periodics [periodiccnt - 1] = (WT)w;	2266	ANHE_w (periodics [ev_active (w)]) = (WT)w;
1714	upheap (periodics, periodiccnt - 1);	2267	ANHE_at_cache (periodics [ev_active (w)]);
		2268	upheap (periodics, ev_active (w));
1715		2269
		2270	EV_FREQUENT_CHECK;
		2271
1716	/assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));/	2272	/assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));/
1717	}	2273	}
1718		2274
1719	void noinline	2275	void noinline
1720	ev_periodic_stop (EV_P_ ev_periodic *w)	2276	ev_periodic_stop (EV_P_ ev_periodic *w)
1721	{	2277	{
1722	clear_pending (EV_A_ (W)w);	2278	clear_pending (EV_A_ (W)w);
1723	if (expect_false (!ev_is_active (w)))	2279	if (expect_false (!ev_is_active (w)))
1724	return;	2280	return;
1725		2281
1726	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));	2282	EV_FREQUENT_CHECK;
1727		2283
1728	{	2284	{
1729	int active = ((W)w)->active;	2285	int active = ev_active (w);
1730		2286
		2287	assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
		2288
		2289	--periodiccnt;
		2290
1731	if (expect_true (--active < --periodiccnt))	2291	if (expect_true (active < periodiccnt + HEAP0))
1732	{	2292	{
1733	periodics [active] = periodics [periodiccnt];	2293	periodics [active] = periodics [periodiccnt + HEAP0];
1734	adjustheap (periodics, periodiccnt, active);	2294	adjustheap (periodics, periodiccnt, active);
1735	}	2295	}
1736	}	2296	}
1737		2297
		2298	EV_FREQUENT_CHECK;
		2299
1738	ev_stop (EV_A_ (W)w);	2300	ev_stop (EV_A_ (W)w);
1739	}	2301	}
1740		2302
1741	void noinline	2303	void noinline
1742	ev_periodic_again (EV_P_ ev_periodic *w)	2304	ev_periodic_again (EV_P_ ev_periodic *w)
…		…
1759	#endif	2321	#endif
1760	if (expect_false (ev_is_active (w)))	2322	if (expect_false (ev_is_active (w)))
1761	return;	2323	return;
1762		2324
1763	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	2325	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		2326
		2327	evpipe_init (EV_A);
		2328
		2329	EV_FREQUENT_CHECK;
1764		2330
1765	{	2331	{
1766	#ifndef _WIN32	2332	#ifndef _WIN32
1767	sigset_t full, prev;	2333	sigset_t full, prev;
1768	sigfillset (&full);	2334	sigfillset (&full);
…		…
1780	wlist_add (&signals [w->signum - 1].head, (WL)w);	2346	wlist_add (&signals [w->signum - 1].head, (WL)w);
1781		2347
1782	if (!((WL)w)->next)	2348	if (!((WL)w)->next)
1783	{	2349	{
1784	#if _WIN32	2350	#if _WIN32
1785	signal (w->signum, sighandler);	2351	signal (w->signum, ev_sighandler);
1786	#else	2352	#else
1787	struct sigaction sa;	2353	struct sigaction sa;
1788	sa.sa_handler = sighandler;	2354	sa.sa_handler = ev_sighandler;
1789	sigfillset (&sa.sa_mask);	2355	sigfillset (&sa.sa_mask);
1790	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	2356	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1791	sigaction (w->signum, &sa, 0);	2357	sigaction (w->signum, &sa, 0);
1792	#endif	2358	#endif
1793	}	2359	}
		2360
		2361	EV_FREQUENT_CHECK;
1794	}	2362	}
1795		2363
1796	void noinline	2364	void noinline
1797	ev_signal_stop (EV_P_ ev_signal *w)	2365	ev_signal_stop (EV_P_ ev_signal *w)
1798	{	2366	{
1799	clear_pending (EV_A_ (W)w);	2367	clear_pending (EV_A_ (W)w);
1800	if (expect_false (!ev_is_active (w)))	2368	if (expect_false (!ev_is_active (w)))
1801	return;	2369	return;
1802		2370
		2371	EV_FREQUENT_CHECK;
		2372
1803	wlist_del (&signals [w->signum - 1].head, (WL)w);	2373	wlist_del (&signals [w->signum - 1].head, (WL)w);
1804	ev_stop (EV_A_ (W)w);	2374	ev_stop (EV_A_ (W)w);
1805		2375
1806	if (!signals [w->signum - 1].head)	2376	if (!signals [w->signum - 1].head)
1807	signal (w->signum, SIG_DFL);	2377	signal (w->signum, SIG_DFL);
		2378
		2379	EV_FREQUENT_CHECK;
1808	}	2380	}
1809		2381
1810	void	2382	void
1811	ev_child_start (EV_P_ ev_child *w)	2383	ev_child_start (EV_P_ ev_child *w)
1812	{	2384	{
…		…
1814	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	2386	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1815	#endif	2387	#endif
1816	if (expect_false (ev_is_active (w)))	2388	if (expect_false (ev_is_active (w)))
1817	return;	2389	return;
1818		2390
		2391	EV_FREQUENT_CHECK;
		2392
1819	ev_start (EV_A_ (W)w, 1);	2393	ev_start (EV_A_ (W)w, 1);
1820	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2394	wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
		2395
		2396	EV_FREQUENT_CHECK;
1821	}	2397	}
1822		2398
1823	void	2399	void
1824	ev_child_stop (EV_P_ ev_child *w)	2400	ev_child_stop (EV_P_ ev_child *w)
1825	{	2401	{
1826	clear_pending (EV_A_ (W)w);	2402	clear_pending (EV_A_ (W)w);
1827	if (expect_false (!ev_is_active (w)))	2403	if (expect_false (!ev_is_active (w)))
1828	return;	2404	return;
1829		2405
		2406	EV_FREQUENT_CHECK;
		2407
1830	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);	2408	wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1831	ev_stop (EV_A_ (W)w);	2409	ev_stop (EV_A_ (W)w);
		2410
		2411	EV_FREQUENT_CHECK;
1832	}	2412	}
1833		2413
1834	#if EV_STAT_ENABLE	2414	#if EV_STAT_ENABLE
1835		2415
1836	# ifdef _WIN32	2416	# ifdef _WIN32
…		…
1854	if (w->wd < 0)	2434	if (w->wd < 0)
1855	{	2435	{
1856	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */	2436	ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1857		2437
1858	/* monitor some parent directory for speedup hints */	2438	/* monitor some parent directory for speedup hints */
		2439	/* note that exceeding the hardcoded limit is not a correctness issue, */
		2440	/* but an efficiency issue only */
1859	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)	2441	if ((errno == ENOENT \|\| errno == EACCES) && strlen (w->path) < 4096)
1860	{	2442	{
1861	char path [4096];	2443	char path [4096];
1862	strcpy (path, w->path);	2444	strcpy (path, w->path);
1863		2445
…		…
1989	}	2571	}
1990		2572
1991	}	2573	}
1992	}	2574	}
1993		2575
		2576	#endif
		2577
		2578	#ifdef _WIN32
		2579	# define EV_LSTAT(p,b) _stati64 (p, b)
		2580	#else
		2581	# define EV_LSTAT(p,b) lstat (p, b)
1994	#endif	2582	#endif
1995		2583
1996	void	2584	void
1997	ev_stat_stat (EV_P_ ev_stat *w)	2585	ev_stat_stat (EV_P_ ev_stat *w)
1998	{	2586	{
…		…
2062	else	2650	else
2063	#endif	2651	#endif
2064	ev_timer_start (EV_A_ &w->timer);	2652	ev_timer_start (EV_A_ &w->timer);
2065		2653
2066	ev_start (EV_A_ (W)w, 1);	2654	ev_start (EV_A_ (W)w, 1);
		2655
		2656	EV_FREQUENT_CHECK;
2067	}	2657	}
2068		2658
2069	void	2659	void
2070	ev_stat_stop (EV_P_ ev_stat *w)	2660	ev_stat_stop (EV_P_ ev_stat *w)
2071	{	2661	{
2072	clear_pending (EV_A_ (W)w);	2662	clear_pending (EV_A_ (W)w);
2073	if (expect_false (!ev_is_active (w)))	2663	if (expect_false (!ev_is_active (w)))
2074	return;	2664	return;
2075		2665
		2666	EV_FREQUENT_CHECK;
		2667
2076	#if EV_USE_INOTIFY	2668	#if EV_USE_INOTIFY
2077	infy_del (EV_A_ w);	2669	infy_del (EV_A_ w);
2078	#endif	2670	#endif
2079	ev_timer_stop (EV_A_ &w->timer);	2671	ev_timer_stop (EV_A_ &w->timer);
2080		2672
2081	ev_stop (EV_A_ (W)w);	2673	ev_stop (EV_A_ (W)w);
		2674
		2675	EV_FREQUENT_CHECK;
2082	}	2676	}
2083	#endif	2677	#endif
2084		2678
2085	#if EV_IDLE_ENABLE	2679	#if EV_IDLE_ENABLE
2086	void	2680	void
…		…
2088	{	2682	{
2089	if (expect_false (ev_is_active (w)))	2683	if (expect_false (ev_is_active (w)))
2090	return;	2684	return;
2091		2685
2092	pri_adjust (EV_A_ (W)w);	2686	pri_adjust (EV_A_ (W)w);
		2687
		2688	EV_FREQUENT_CHECK;
2093		2689
2094	{	2690	{
2095	int active = ++idlecnt [ABSPRI (w)];	2691	int active = ++idlecnt [ABSPRI (w)];
2096		2692
2097	++idleall;	2693	++idleall;
2098	ev_start (EV_A_ (W)w, active);	2694	ev_start (EV_A_ (W)w, active);
2099		2695
2100	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	2696	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2101	idles [ABSPRI (w)][active - 1] = w;	2697	idles [ABSPRI (w)][active - 1] = w;
2102	}	2698	}
		2699
		2700	EV_FREQUENT_CHECK;
2103	}	2701	}
2104		2702
2105	void	2703	void
2106	ev_idle_stop (EV_P_ ev_idle *w)	2704	ev_idle_stop (EV_P_ ev_idle *w)
2107	{	2705	{
2108	clear_pending (EV_A_ (W)w);	2706	clear_pending (EV_A_ (W)w);
2109	if (expect_false (!ev_is_active (w)))	2707	if (expect_false (!ev_is_active (w)))
2110	return;	2708	return;
2111		2709
		2710	EV_FREQUENT_CHECK;
		2711
2112	{	2712	{
2113	int active = ((W)w)->active;	2713	int active = ev_active (w);
2114		2714
2115	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];	2715	idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2116	((W)idles [ABSPRI (w)][active - 1])->active = active;	2716	ev_active (idles [ABSPRI (w)][active - 1]) = active;
2117		2717
2118	ev_stop (EV_A_ (W)w);	2718	ev_stop (EV_A_ (W)w);
2119	--idleall;	2719	--idleall;
2120	}	2720	}
		2721
		2722	EV_FREQUENT_CHECK;
2121	}	2723	}
2122	#endif	2724	#endif
2123		2725
2124	void	2726	void
2125	ev_prepare_start (EV_P_ ev_prepare *w)	2727	ev_prepare_start (EV_P_ ev_prepare *w)
2126	{	2728	{
2127	if (expect_false (ev_is_active (w)))	2729	if (expect_false (ev_is_active (w)))
2128	return;	2730	return;
		2731
		2732	EV_FREQUENT_CHECK;
2129		2733
2130	ev_start (EV_A_ (W)w, ++preparecnt);	2734	ev_start (EV_A_ (W)w, ++preparecnt);
2131	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	2735	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2132	prepares [preparecnt - 1] = w;	2736	prepares [preparecnt - 1] = w;
		2737
		2738	EV_FREQUENT_CHECK;
2133	}	2739	}
2134		2740
2135	void	2741	void
2136	ev_prepare_stop (EV_P_ ev_prepare *w)	2742	ev_prepare_stop (EV_P_ ev_prepare *w)
2137	{	2743	{
2138	clear_pending (EV_A_ (W)w);	2744	clear_pending (EV_A_ (W)w);
2139	if (expect_false (!ev_is_active (w)))	2745	if (expect_false (!ev_is_active (w)))
2140	return;	2746	return;
2141		2747
		2748	EV_FREQUENT_CHECK;
		2749
2142	{	2750	{
2143	int active = ((W)w)->active;	2751	int active = ev_active (w);
		2752
2144	prepares [active - 1] = prepares [--preparecnt];	2753	prepares [active - 1] = prepares [--preparecnt];
2145	((W)prepares [active - 1])->active = active;	2754	ev_active (prepares [active - 1]) = active;
2146	}	2755	}
2147		2756
2148	ev_stop (EV_A_ (W)w);	2757	ev_stop (EV_A_ (W)w);
		2758
		2759	EV_FREQUENT_CHECK;
2149	}	2760	}
2150		2761
2151	void	2762	void
2152	ev_check_start (EV_P_ ev_check *w)	2763	ev_check_start (EV_P_ ev_check *w)
2153	{	2764	{
2154	if (expect_false (ev_is_active (w)))	2765	if (expect_false (ev_is_active (w)))
2155	return;	2766	return;
		2767
		2768	EV_FREQUENT_CHECK;
2156		2769
2157	ev_start (EV_A_ (W)w, ++checkcnt);	2770	ev_start (EV_A_ (W)w, ++checkcnt);
2158	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	2771	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2159	checks [checkcnt - 1] = w;	2772	checks [checkcnt - 1] = w;
		2773
		2774	EV_FREQUENT_CHECK;
2160	}	2775	}
2161		2776
2162	void	2777	void
2163	ev_check_stop (EV_P_ ev_check *w)	2778	ev_check_stop (EV_P_ ev_check *w)
2164	{	2779	{
2165	clear_pending (EV_A_ (W)w);	2780	clear_pending (EV_A_ (W)w);
2166	if (expect_false (!ev_is_active (w)))	2781	if (expect_false (!ev_is_active (w)))
2167	return;	2782	return;
2168		2783
		2784	EV_FREQUENT_CHECK;
		2785
2169	{	2786	{
2170	int active = ((W)w)->active;	2787	int active = ev_active (w);
		2788
2171	checks [active - 1] = checks [--checkcnt];	2789	checks [active - 1] = checks [--checkcnt];
2172	((W)checks [active - 1])->active = active;	2790	ev_active (checks [active - 1]) = active;
2173	}	2791	}
2174		2792
2175	ev_stop (EV_A_ (W)w);	2793	ev_stop (EV_A_ (W)w);
		2794
		2795	EV_FREQUENT_CHECK;
2176	}	2796	}
2177		2797
2178	#if EV_EMBED_ENABLE	2798	#if EV_EMBED_ENABLE
2179	void noinline	2799	void noinline
2180	ev_embed_sweep (EV_P_ ev_embed *w)	2800	ev_embed_sweep (EV_P_ ev_embed *w)
2181	{	2801	{
2182	ev_loop (w->loop, EVLOOP_NONBLOCK);	2802	ev_loop (w->other, EVLOOP_NONBLOCK);
2183	}	2803	}
2184		2804
2185	static void	2805	static void
2186	embed_cb (EV_P_ ev_io *io, int revents)	2806	embed_io_cb (EV_P_ ev_io *io, int revents)
2187	{	2807	{
2188	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));	2808	ev_embed w = (ev_embed )(((char *)io) - offsetof (ev_embed, io));
2189		2809
2190	if (ev_cb (w))	2810	if (ev_cb (w))
2191	ev_feed_event (EV_A_ (W)w, EV_EMBED);	2811	ev_feed_event (EV_A_ (W)w, EV_EMBED);
2192	else	2812	else
2193	ev_embed_sweep (loop, w);	2813	ev_loop (w->other, EVLOOP_NONBLOCK);
2194	}	2814	}
		2815
		2816	static void
		2817	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
		2818	{
		2819	ev_embed w = (ev_embed )(((char *)prepare) - offsetof (ev_embed, prepare));
		2820
		2821	{
		2822	struct ev_loop *loop = w->other;
		2823
		2824	while (fdchangecnt)
		2825	{
		2826	fd_reify (EV_A);
		2827	ev_loop (EV_A_ EVLOOP_NONBLOCK);
		2828	}
		2829	}
		2830	}
		2831
		2832	#if 0
		2833	static void
		2834	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
		2835	{
		2836	ev_idle_stop (EV_A_ idle);
		2837	}
		2838	#endif
2195		2839
2196	void	2840	void
2197	ev_embed_start (EV_P_ ev_embed *w)	2841	ev_embed_start (EV_P_ ev_embed *w)
2198	{	2842	{
2199	if (expect_false (ev_is_active (w)))	2843	if (expect_false (ev_is_active (w)))
2200	return;	2844	return;
2201		2845
2202	{	2846	{
2203	struct ev_loop *loop = w->loop;	2847	struct ev_loop *loop = w->other;
2204	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	2848	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2205	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);	2849	ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2206	}	2850	}
		2851
		2852	EV_FREQUENT_CHECK;
2207		2853
2208	ev_set_priority (&w->io, ev_priority (w));	2854	ev_set_priority (&w->io, ev_priority (w));
2209	ev_io_start (EV_A_ &w->io);	2855	ev_io_start (EV_A_ &w->io);
2210		2856
		2857	ev_prepare_init (&w->prepare, embed_prepare_cb);
		2858	ev_set_priority (&w->prepare, EV_MINPRI);
		2859	ev_prepare_start (EV_A_ &w->prepare);
		2860
		2861	/ev_idle_init (&w->idle, e,bed_idle_cb);/
		2862
2211	ev_start (EV_A_ (W)w, 1);	2863	ev_start (EV_A_ (W)w, 1);
		2864
		2865	EV_FREQUENT_CHECK;
2212	}	2866	}
2213		2867
2214	void	2868	void
2215	ev_embed_stop (EV_P_ ev_embed *w)	2869	ev_embed_stop (EV_P_ ev_embed *w)
2216	{	2870	{
2217	clear_pending (EV_A_ (W)w);	2871	clear_pending (EV_A_ (W)w);
2218	if (expect_false (!ev_is_active (w)))	2872	if (expect_false (!ev_is_active (w)))
2219	return;	2873	return;
2220		2874
		2875	EV_FREQUENT_CHECK;
		2876
2221	ev_io_stop (EV_A_ &w->io);	2877	ev_io_stop (EV_A_ &w->io);
		2878	ev_prepare_stop (EV_A_ &w->prepare);
2222		2879
2223	ev_stop (EV_A_ (W)w);	2880	ev_stop (EV_A_ (W)w);
		2881
		2882	EV_FREQUENT_CHECK;
2224	}	2883	}
2225	#endif	2884	#endif
2226		2885
2227	#if EV_FORK_ENABLE	2886	#if EV_FORK_ENABLE
2228	void	2887	void
2229	ev_fork_start (EV_P_ ev_fork *w)	2888	ev_fork_start (EV_P_ ev_fork *w)
2230	{	2889	{
2231	if (expect_false (ev_is_active (w)))	2890	if (expect_false (ev_is_active (w)))
2232	return;	2891	return;
		2892
		2893	EV_FREQUENT_CHECK;
2233		2894
2234	ev_start (EV_A_ (W)w, ++forkcnt);	2895	ev_start (EV_A_ (W)w, ++forkcnt);
2235	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	2896	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2236	forks [forkcnt - 1] = w;	2897	forks [forkcnt - 1] = w;
		2898
		2899	EV_FREQUENT_CHECK;
2237	}	2900	}
2238		2901
2239	void	2902	void
2240	ev_fork_stop (EV_P_ ev_fork *w)	2903	ev_fork_stop (EV_P_ ev_fork *w)
2241	{	2904	{
2242	clear_pending (EV_A_ (W)w);	2905	clear_pending (EV_A_ (W)w);
2243	if (expect_false (!ev_is_active (w)))	2906	if (expect_false (!ev_is_active (w)))
2244	return;	2907	return;
2245		2908
		2909	EV_FREQUENT_CHECK;
		2910
2246	{	2911	{
2247	int active = ((W)w)->active;	2912	int active = ev_active (w);
		2913
2248	forks [active - 1] = forks [--forkcnt];	2914	forks [active - 1] = forks [--forkcnt];
2249	((W)forks [active - 1])->active = active;	2915	ev_active (forks [active - 1]) = active;
2250	}	2916	}
2251		2917
2252	ev_stop (EV_A_ (W)w);	2918	ev_stop (EV_A_ (W)w);
		2919
		2920	EV_FREQUENT_CHECK;
		2921	}
		2922	#endif
		2923
		2924	#if EV_ASYNC_ENABLE
		2925	void
		2926	ev_async_start (EV_P_ ev_async *w)
		2927	{
		2928	if (expect_false (ev_is_active (w)))
		2929	return;
		2930
		2931	evpipe_init (EV_A);
		2932
		2933	EV_FREQUENT_CHECK;
		2934
		2935	ev_start (EV_A_ (W)w, ++asynccnt);
		2936	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
		2937	asyncs [asynccnt - 1] = w;
		2938
		2939	EV_FREQUENT_CHECK;
		2940	}
		2941
		2942	void
		2943	ev_async_stop (EV_P_ ev_async *w)
		2944	{
		2945	clear_pending (EV_A_ (W)w);
		2946	if (expect_false (!ev_is_active (w)))
		2947	return;
		2948
		2949	EV_FREQUENT_CHECK;
		2950
		2951	{
		2952	int active = ev_active (w);
		2953
		2954	asyncs [active - 1] = asyncs [--asynccnt];
		2955	ev_active (asyncs [active - 1]) = active;
		2956	}
		2957
		2958	ev_stop (EV_A_ (W)w);
		2959
		2960	EV_FREQUENT_CHECK;
		2961	}
		2962
		2963	void
		2964	ev_async_send (EV_P_ ev_async *w)
		2965	{
		2966	w->sent = 1;
		2967	evpipe_write (EV_A_ &gotasync);
2253	}	2968	}
2254	#endif	2969	#endif
2255		2970
2256	/*****************************************************************************/	2971	/*****************************************************************************/
2257		2972
…		…
2315	ev_timer_set (&once->to, timeout, 0.);	3030	ev_timer_set (&once->to, timeout, 0.);
2316	ev_timer_start (EV_A_ &once->to);	3031	ev_timer_start (EV_A_ &once->to);
2317	}	3032	}
2318	}	3033	}
2319		3034
		3035	#if EV_MULTIPLICITY
		3036	#include "ev_wrap.h"
		3037	#endif
		3038
2320	#ifdef __cplusplus	3039	#ifdef __cplusplus
2321	}	3040	}
2322	#endif	3041	#endif
2323		3042

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Comparing libev/ev.c (file contents): Revision 1.185 by root, Fri Dec 14 18:22:30 2007 UTC vs. Revision 1.258 by root, Sun Sep 7 18:15:12 2008 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.185 by root, Fri Dec 14 18:22:30 2007 UTC vs.
Revision 1.258 by root, Sun Sep 7 18:15:12 2008 UTC