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Comparing libev/ev.c (file contents):
Revision 1.351 by root, Sat Oct 16 06:46:55 2010 UTC vs.
Revision 1.381 by root, Mon Jun 27 21:29:35 2011 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011 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 modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
10	* 1. Redistributions of source code must retain the above copyright notice,	10	* 1. Redistributions of source code must retain the above copyright notice,
11	* this list of conditions and the following disclaimer.	11	* this list of conditions and the following disclaimer.
12	*	12	*
13	* 2. Redistributions in binary form must reproduce the above copyright	13	* 2. Redistributions in binary form must reproduce the above copyright
14	* notice, this list of conditions and the following disclaimer in the	14	* notice, this list of conditions and the following disclaimer in the
15	* documentation and/or other materials provided with the distribution.	15	* documentation and/or other materials provided with the distribution.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED	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-	18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO	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-	20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,	21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
…		…
35	* and other provisions required by the GPL. If you do not delete the	35	* and other provisions required by the GPL. If you do not delete the
36	* provisions above, a recipient may use your version of this file under	36	* provisions above, a recipient may use your version of this file under
37	* either the BSD or the GPL.	37	* either the BSD or the GPL.
38	*/	38	*/
39		39
40	#ifdef __cplusplus
41	extern "C" {
42	#endif
43
44	/* this big block deduces configuration from config.h */	40	/* this big block deduces configuration from config.h */
45	#ifndef EV_STANDALONE	41	#ifndef EV_STANDALONE
46	# ifdef EV_CONFIG_H	42	# ifdef EV_CONFIG_H
47	# include EV_CONFIG_H	43	# include EV_CONFIG_H
48	# else	44	# else
49	# include "config.h"	45	# include "config.h"
50	# endif	46	# endif
		47
		48	#if HAVE_FLOOR
		49	# ifndef EV_USE_FLOOR
		50	# define EV_USE_FLOOR 1
		51	# endif
		52	#endif
51		53
52	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
53	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
54	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
55	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
160	# define EV_USE_EVENTFD 0	162	# define EV_USE_EVENTFD 0
161	# endif	163	# endif
162		164
163	#endif	165	#endif
164		166
165	#include <math.h>
166	#include <stdlib.h>	167	#include <stdlib.h>
167	#include <string.h>	168	#include <string.h>
168	#include <fcntl.h>	169	#include <fcntl.h>
169	#include <stddef.h>	170	#include <stddef.h>
170		171
…		…
181	#ifdef EV_H	182	#ifdef EV_H
182	# include EV_H	183	# include EV_H
183	#else	184	#else
184	# include "ev.h"	185	# include "ev.h"
185	#endif	186	#endif
		187
		188	EV_CPP(extern "C" {)
186		189
187	#ifndef _WIN32	190	#ifndef _WIN32
188	# include <sys/time.h>	191	# include <sys/time.h>
189	# include <sys/wait.h>	192	# include <sys/wait.h>
190	# include <unistd.h>	193	# include <unistd.h>
…		…
234	/* to make it compile regardless, just remove the above line, */	237	/* to make it compile regardless, just remove the above line, */
235	/* but consider reporting it, too! :) */	238	/* but consider reporting it, too! :) */
236	# define EV_NSIG 65	239	# define EV_NSIG 65
237	#endif	240	#endif
238		241
		242	#ifndef EV_USE_FLOOR
		243	# define EV_USE_FLOOR 0
		244	#endif
		245
239	#ifndef EV_USE_CLOCK_SYSCALL	246	#ifndef EV_USE_CLOCK_SYSCALL
240	# if __linux && __GLIBC__ >= 2	247	# if __linux && __GLIBC__ >= 2
241	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	248	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
242	# else	249	# else
243	# define EV_USE_CLOCK_SYSCALL 0	250	# define EV_USE_CLOCK_SYSCALL 0
…		…
378	# undef EV_USE_INOTIFY	385	# undef EV_USE_INOTIFY
379	# define EV_USE_INOTIFY 0	386	# define EV_USE_INOTIFY 0
380	#endif	387	#endif
381		388
382	#if !EV_USE_NANOSLEEP	389	#if !EV_USE_NANOSLEEP
383	# ifndef _WIN32	390	/* hp-ux has it in sys/time.h, which we unconditionally include above */
		391	# if !defined(_WIN32) && !defined(__hpux)
384	# include <sys/select.h>	392	# include <sys/select.h>
385	# endif	393	# endif
386	#endif	394	#endif
387		395
388	#if EV_USE_INOTIFY	396	#if EV_USE_INOTIFY
389	# include <sys/utsname.h>
390	# include <sys/statfs.h>	397	# include <sys/statfs.h>
391	# include <sys/inotify.h>	398	# include <sys/inotify.h>
392	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
393	# ifndef IN_DONT_FOLLOW	400	# ifndef IN_DONT_FOLLOW
394	# undef EV_USE_INOTIFY	401	# undef EV_USE_INOTIFY
…		…
411	# define EFD_CLOEXEC O_CLOEXEC	418	# define EFD_CLOEXEC O_CLOEXEC
412	# else	419	# else
413	# define EFD_CLOEXEC 02000000	420	# define EFD_CLOEXEC 02000000
414	# endif	421	# endif
415	# endif	422	# endif
416	# ifdef __cplusplus
417	extern "C" {
418	# endif
419	int (eventfd) (unsigned int initval, int flags);	423	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
420	# ifdef __cplusplus
421	}
422	# endif
423	#endif	424	#endif
424		425
425	#if EV_USE_SIGNALFD	426	#if EV_USE_SIGNALFD
426	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	427	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
427	# include <stdint.h>	428	# include <stdint.h>
…		…
433	# define SFD_CLOEXEC O_CLOEXEC	434	# define SFD_CLOEXEC O_CLOEXEC
434	# else	435	# else
435	# define SFD_CLOEXEC 02000000	436	# define SFD_CLOEXEC 02000000
436	# endif	437	# endif
437	# endif	438	# endif
438	# ifdef __cplusplus
439	extern "C" {
440	# endif
441	int signalfd (int fd, const sigset_t *mask, int flags);	439	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
442		440
443	struct signalfd_siginfo	441	struct signalfd_siginfo
444	{	442	{
445	uint32_t ssi_signo;	443	uint32_t ssi_signo;
446	char pad[128 - sizeof (uint32_t)];	444	char pad[128 - sizeof (uint32_t)];
447	};	445	};
448	# ifdef __cplusplus
449	}
450	# endif
451	#endif	446	#endif
452		447
453	/**/	448	/**/
454		449
455	#if EV_VERIFY >= 3	450	#if EV_VERIFY >= 3
…		…
457	#else	452	#else
458	# define EV_FREQUENT_CHECK do { } while (0)	453	# define EV_FREQUENT_CHECK do { } while (0)
459	#endif	454	#endif
460		455
461	/*	456	/*
462	* This is used to avoid floating point rounding problems.	457	* This is used to work around floating point rounding problems.
463	* It is added to ev_rt_now when scheduling periodics
464	* to ensure progress, time-wise, even when rounding
465	* errors are against us.
466	* This value is good at least till the year 4000.	458	* This value is good at least till the year 4000.
467	* Better solutions welcome.
468	*/	459	*/
469	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	460	#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
		461	/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
470		462
471	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	463	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
472	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
473		465
474	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
475	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	467	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
476		468
477	#if __GNUC__ >= 4	469	/* the following are taken from libecb */
478	# define expect(expr,value) __builtin_expect ((expr),(value))	470	/* ecb.h start */
479	# define noinline __attribute__ ((noinline))	471
		472	/* many compilers define _GNUC_ to some versions but then only implement
		473	* what their idiot authors think are the "more important" extensions,
		474	* causing enourmous grief in return for some better fake benchmark numbers.
		475	* or so.
		476	* we try to detect these and simply assume they are not gcc - if they have
		477	* an issue with that they should have done it right in the first place.
		478	*/
		479	#ifndef ECB_GCC_VERSION
		480	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
		481	#define ECB_GCC_VERSION(major,minor) 0
		482	#else
		483	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
		484	#endif
		485	#endif
		486
		487	#if __cplusplus
		488	#define ecb_inline static inline
		489	#elif ECB_GCC_VERSION(2,5)
		490	#define ecb_inline static __inline__
		491	#elif ECB_C99
		492	#define ecb_inline static inline
480	#else	493	#else
481	# define expect(expr,value) (expr)	494	#define ecb_inline static
482	# define noinline
483	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
484	# define inline
485	# endif	495	#endif
486	#endif
487		496
		497	#if ECB_GCC_VERSION(3,1)
		498	#define ecb_attribute(attrlist) __attribute__(attrlist)
		499	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		500	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		501	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		502	#else
		503	#define ecb_attribute(attrlist)
		504	#define ecb_is_constant(expr) 0
		505	#define ecb_expect(expr,value) (expr)
		506	#define ecb_prefetch(addr,rw,locality)
		507	#endif
		508
		509	#define ecb_noinline ecb_attribute ((__noinline__))
		510	#define ecb_noreturn ecb_attribute ((__noreturn__))
		511	#define ecb_unused ecb_attribute ((__unused__))
		512	#define ecb_const ecb_attribute ((__const__))
		513	#define ecb_pure ecb_attribute ((__pure__))
		514
		515	#if ECB_GCC_VERSION(4,3)
		516	#define ecb_artificial ecb_attribute ((__artificial__))
		517	#define ecb_hot ecb_attribute ((__hot__))
		518	#define ecb_cold ecb_attribute ((__cold__))
		519	#else
		520	#define ecb_artificial
		521	#define ecb_hot
		522	#define ecb_cold
		523	#endif
		524
		525	/* put around conditional expressions if you are very sure that the */
		526	/* expression is mostly true or mostly false. note that these return */
		527	/* booleans, not the expression. */
488	#define expect_false(expr) expect ((expr) != 0, 0)	528	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
489	#define expect_true(expr) expect ((expr) != 0, 1)	529	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		530	/* ecb.h end */
		531
		532	#define expect_false(cond) ecb_expect_false (cond)
		533	#define expect_true(cond) ecb_expect_true (cond)
		534	#define noinline ecb_noinline
		535
490	#define inline_size static inline	536	#define inline_size ecb_inline
491		537
492	#if EV_FEATURE_CODE	538	#if EV_FEATURE_CODE
493	# define inline_speed static inline	539	# define inline_speed ecb_inline
494	#else	540	#else
495	# define inline_speed static noinline	541	# define inline_speed static noinline
496	#endif	542	#endif
497		543
498	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	544	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
537	# include "ev_win32.c"	583	# include "ev_win32.c"
538	#endif	584	#endif
539		585
540	/*****************************************************************************/	586	/*****************************************************************************/
541		587
		588	/* define a suitable floor function (only used by periodics atm) */
		589
		590	#if EV_USE_FLOOR
		591	# include <math.h>
		592	# define ev_floor(v) floor (v)
		593	#else
		594
		595	#include <float.h>
		596
		597	/* a floor() replacement function, should be independent of ev_tstamp type */
		598	static ev_tstamp noinline
		599	ev_floor (ev_tstamp v)
		600	{
		601	/* the choice of shift factor is not terribly important */
		602	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
		603	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
		604	#else
		605	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
		606	#endif
		607
		608	/* argument too large for an unsigned long? */
		609	if (expect_false (v >= shift))
		610	{
		611	ev_tstamp f;
		612
		613	if (v == v - 1.)
		614	return v; /* very large number */
		615
		616	f = shift * ev_floor (v * (1. / shift));
		617	return f + ev_floor (v - f);
		618	}
		619
		620	/* special treatment for negative args? */
		621	if (expect_false (v < 0.))
		622	{
		623	ev_tstamp f = -ev_floor (-v);
		624
		625	return f - (f == v ? 0 : 1);
		626	}
		627
		628	/* fits into an unsigned long */
		629	return (unsigned long)v;
		630	}
		631
		632	#endif
		633
		634	/*****************************************************************************/
		635
		636	#ifdef __linux
		637	# include <sys/utsname.h>
		638	#endif
		639
		640	static unsigned int noinline ecb_cold
		641	ev_linux_version (void)
		642	{
		643	#ifdef __linux
		644	unsigned int v = 0;
		645	struct utsname buf;
		646	int i;
		647	char *p = buf.release;
		648
		649	if (uname (&buf))
		650	return 0;
		651
		652	for (i = 3+1; --i; )
		653	{
		654	unsigned int c = 0;
		655
		656	for (;;)
		657	{
		658	if (*p >= '0' && *p <= '9')
		659	c = c * 10 + *p++ - '0';
		660	else
		661	{
		662	p += *p == '.';
		663	break;
		664	}
		665	}
		666
		667	v = (v << 8) | c;
		668	}
		669
		670	return v;
		671	#else
		672	return 0;
		673	#endif
		674	}
		675
		676	/*****************************************************************************/
		677
542	#if EV_AVOID_STDIO	678	#if EV_AVOID_STDIO
543	static void noinline	679	static void noinline ecb_cold
544	ev_printerr (const char *msg)	680	ev_printerr (const char *msg)
545	{	681	{
546	write (STDERR_FILENO, msg, strlen (msg));	682	write (STDERR_FILENO, msg, strlen (msg));
547	}	683	}
548	#endif	684	#endif
549		685
550	static void (*syserr_cb)(const char *msg);	686	static void (*syserr_cb)(const char *msg);
551		687
552	void	688	void ecb_cold
553	ev_set_syserr_cb (void (*cb)(const char *msg))	689	ev_set_syserr_cb (void (*cb)(const char *msg))
554	{	690	{
555	syserr_cb = cb;	691	syserr_cb = cb;
556	}	692	}
557		693
558	static void noinline	694	static void noinline ecb_cold
559	ev_syserr (const char *msg)	695	ev_syserr (const char *msg)
560	{	696	{
561	if (!msg)	697	if (!msg)
562	msg = "(libev) system error";	698	msg = "(libev) system error";
563		699
564	if (syserr_cb)	700	if (syserr_cb)
565	syserr_cb (msg);	701	syserr_cb (msg);
566	else	702	else
567	{	703	{
568	#if EV_AVOID_STDIO	704	#if EV_AVOID_STDIO
569	const char *err = strerror (errno);
570
571	ev_printerr (msg);	705	ev_printerr (msg);
572	ev_printerr (": ");	706	ev_printerr (": ");
573	ev_printerr (err);	707	ev_printerr (strerror (errno));
574	ev_printerr ("\n");	708	ev_printerr ("\n");
575	#else	709	#else
576	perror (msg);	710	perror (msg);
577	#endif	711	#endif
578	abort ();	712	abort ();
…		…
598	#endif	732	#endif
599	}	733	}
600		734
601	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	735	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
602		736
603	void	737	void ecb_cold
604	ev_set_allocator (void *(*cb)(void *ptr, long size))	738	ev_set_allocator (void *(*cb)(void *ptr, long size))
605	{	739	{
606	alloc = cb;	740	alloc = cb;
607	}	741	}
608		742
…		…
612	ptr = alloc (ptr, size);	746	ptr = alloc (ptr, size);
613		747
614	if (!ptr && size)	748	if (!ptr && size)
615	{	749	{
616	#if EV_AVOID_STDIO	750	#if EV_AVOID_STDIO
617	ev_printerr ("libev: memory allocation failed, aborting.\n");	751	ev_printerr ("(libev) memory allocation failed, aborting.\n");
618	#else	752	#else
619	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	753	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
620	#endif	754	#endif
621	abort ();	755	abort ();
622	}	756	}
623		757
624	return ptr;	758	return ptr;
…		…
641	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	775	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
642	unsigned char unused;	776	unsigned char unused;
643	#if EV_USE_EPOLL	777	#if EV_USE_EPOLL
644	unsigned int egen; /* generation counter to counter epoll bugs */	778	unsigned int egen; /* generation counter to counter epoll bugs */
645	#endif	779	#endif
646	#if EV_SELECT_IS_WINSOCKET	780	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
647	SOCKET handle;	781	SOCKET handle;
		782	#endif
		783	#if EV_USE_IOCP
		784	OVERLAPPED or, ow;
648	#endif	785	#endif
649	} ANFD;	786	} ANFD;
650		787
651	/* stores the pending event set for a given watcher */	788	/* stores the pending event set for a given watcher */
652	typedef struct	789	typedef struct
…		…
717	# define EV_RELEASE_CB (void)0	854	# define EV_RELEASE_CB (void)0
718	# define EV_ACQUIRE_CB (void)0	855	# define EV_ACQUIRE_CB (void)0
719	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	856	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
720	#endif	857	#endif
721		858
722	#define EVUNLOOP_RECURSE 0x80	859	#define EVBREAK_RECURSE 0x80
723		860
724	/*****************************************************************************/	861	/*****************************************************************************/
725		862
726	#ifndef EV_HAVE_EV_TIME	863	#ifndef EV_HAVE_EV_TIME
727	ev_tstamp	864	ev_tstamp
…		…
814	}	951	}
815		952
816	return ncur;	953	return ncur;
817	}	954	}
818		955
819	static noinline void *	956	static void * noinline ecb_cold
820	array_realloc (int elem, void *base, int *cur, int cnt)	957	array_realloc (int elem, void *base, int *cur, int cnt)
821	{	958	{
822	*cur = array_nextsize (elem, *cur, cnt);	959	*cur = array_nextsize (elem, *cur, cnt);
823	return ev_realloc (base, elem * *cur);	960	return ev_realloc (base, elem * *cur);
824	}	961	}
…		…
937	inline_size void	1074	inline_size void
938	fd_reify (EV_P)	1075	fd_reify (EV_P)
939	{	1076	{
940	int i;	1077	int i;
941		1078
		1079	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
		1080	for (i = 0; i < fdchangecnt; ++i)
		1081	{
		1082	int fd = fdchanges [i];
		1083	ANFD *anfd = anfds + fd;
		1084
		1085	if (anfd->reify & EV__IOFDSET && anfd->head)
		1086	{
		1087	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		1088
		1089	if (handle != anfd->handle)
		1090	{
		1091	unsigned long arg;
		1092
		1093	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		1094
		1095	/* handle changed, but fd didn't - we need to do it in two steps */
		1096	backend_modify (EV_A_ fd, anfd->events, 0);
		1097	anfd->events = 0;
		1098	anfd->handle = handle;
		1099	}
		1100	}
		1101	}
		1102	#endif
		1103
942	for (i = 0; i < fdchangecnt; ++i)	1104	for (i = 0; i < fdchangecnt; ++i)
943	{	1105	{
944	int fd = fdchanges [i];	1106	int fd = fdchanges [i];
945	ANFD *anfd = anfds + fd;	1107	ANFD *anfd = anfds + fd;
946	ev_io *w;	1108	ev_io *w;
…		…
948	unsigned char o_events = anfd->events;	1110	unsigned char o_events = anfd->events;
949	unsigned char o_reify = anfd->reify;	1111	unsigned char o_reify = anfd->reify;
950		1112
951	anfd->reify = 0;	1113	anfd->reify = 0;
952		1114
953	#if EV_SELECT_IS_WINSOCKET
954	if (o_reify & EV__IOFDSET)
955	{
956	unsigned long arg;
957	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
958	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
959	}
960	#endif
961
962	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */	1115	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
963	{	1116	{
964	anfd->events = 0;	1117	anfd->events = 0;
965		1118
966	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	1119	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
…		…
991	fdchanges [fdchangecnt - 1] = fd;	1144	fdchanges [fdchangecnt - 1] = fd;
992	}	1145	}
993	}	1146	}
994		1147
995	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1148	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
996	inline_speed void	1149	inline_speed void ecb_cold
997	fd_kill (EV_P_ int fd)	1150	fd_kill (EV_P_ int fd)
998	{	1151	{
999	ev_io *w;	1152	ev_io *w;
1000		1153
1001	while ((w = (ev_io *)anfds [fd].head))	1154	while ((w = (ev_io *)anfds [fd].head))
…		…
1004	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1157	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1005	}	1158	}
1006	}	1159	}
1007		1160
1008	/* check whether the given fd is actually valid, for error recovery */	1161	/* check whether the given fd is actually valid, for error recovery */
1009	inline_size int	1162	inline_size int ecb_cold
1010	fd_valid (int fd)	1163	fd_valid (int fd)
1011	{	1164	{
1012	#ifdef _WIN32	1165	#ifdef _WIN32
1013	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1166	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1014	#else	1167	#else
1015	return fcntl (fd, F_GETFD) != -1;	1168	return fcntl (fd, F_GETFD) != -1;
1016	#endif	1169	#endif
1017	}	1170	}
1018		1171
1019	/* called on EBADF to verify fds */	1172	/* called on EBADF to verify fds */
1020	static void noinline	1173	static void noinline ecb_cold
1021	fd_ebadf (EV_P)	1174	fd_ebadf (EV_P)
1022	{	1175	{
1023	int fd;	1176	int fd;
1024		1177
1025	for (fd = 0; fd < anfdmax; ++fd)	1178	for (fd = 0; fd < anfdmax; ++fd)
…		…
1027	if (!fd_valid (fd) && errno == EBADF)	1180	if (!fd_valid (fd) && errno == EBADF)
1028	fd_kill (EV_A_ fd);	1181	fd_kill (EV_A_ fd);
1029	}	1182	}
1030		1183
1031	/* called on ENOMEM in select/poll to kill some fds and retry */	1184	/* called on ENOMEM in select/poll to kill some fds and retry */
1032	static void noinline	1185	static void noinline ecb_cold
1033	fd_enomem (EV_P)	1186	fd_enomem (EV_P)
1034	{	1187	{
1035	int fd;	1188	int fd;
1036		1189
1037	for (fd = anfdmax; fd--; )	1190	for (fd = anfdmax; fd--; )
…		…
1232		1385
1233	/*****************************************************************************/	1386	/*****************************************************************************/
1234		1387
1235	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	1388	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1236		1389
1237	static void noinline	1390	static void noinline ecb_cold
1238	evpipe_init (EV_P)	1391	evpipe_init (EV_P)
1239	{	1392	{
1240	if (!ev_is_active (&pipe_w))	1393	if (!ev_is_active (&pipe_w))
1241	{	1394	{
1242	# if EV_USE_EVENTFD	1395	# if EV_USE_EVENTFD
…		…
1264	ev_io_start (EV_A_ &pipe_w);	1417	ev_io_start (EV_A_ &pipe_w);
1265	ev_unref (EV_A); /* watcher should not keep loop alive */	1418	ev_unref (EV_A); /* watcher should not keep loop alive */
1266	}	1419	}
1267	}	1420	}
1268		1421
1269	inline_size void	1422	inline_speed void
1270	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1423	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1271	{	1424	{
1272	if (!*flag)	1425	if (!*flag)
1273	{	1426	{
1274	int old_errno = errno; /* save errno because write might clobber it */
1275	char dummy;
1276
1277	*flag = 1;	1427	*flag = 1;
1278		1428
		1429	pipe_write_skipped = 1;
		1430
		1431	if (pipe_write_wanted)
		1432	{
		1433	int old_errno;
		1434
		1435	pipe_write_skipped = 0;
		1436
		1437	old_errno = errno; /* save errno because write will clobber it */
		1438
1279	#if EV_USE_EVENTFD	1439	#if EV_USE_EVENTFD
1280	if (evfd >= 0)	1440	if (evfd >= 0)
1281	{	1441	{
1282	uint64_t counter = 1;	1442	uint64_t counter = 1;
1283	write (evfd, &counter, sizeof (uint64_t));	1443	write (evfd, &counter, sizeof (uint64_t));
		1444	}
		1445	else
		1446	#endif
		1447	{
		1448	/* win32 people keep sending patches that change this write() to send() */
		1449	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1450	/* so when you think this write should be a send instead, please find out */
		1451	/* where your send() is from - it's definitely not the microsoft send, and */
		1452	/* tell me. thank you. */
		1453	write (evpipe [1], &(evpipe [1]), 1);
		1454	}
		1455
		1456	errno = old_errno;
1284	}	1457	}
1285	else
1286	#endif
1287	/* win32 people keep sending patches that change this write() to send() */
1288	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1289	/* so when you think this write should be a send instead, please find out */
1290	/* where your send() is from - it's definitely not the microsoft send, and */
1291	/* tell me. thank you. */
1292	write (evpipe [1], &dummy, 1);
1293
1294	errno = old_errno;
1295	}	1458	}
1296	}	1459	}
1297		1460
1298	/* called whenever the libev signal pipe */	1461	/* called whenever the libev signal pipe */
1299	/* got some events (signal, async) */	1462	/* got some events (signal, async) */
1300	static void	1463	static void
1301	pipecb (EV_P_ ev_io *iow, int revents)	1464	pipecb (EV_P_ ev_io *iow, int revents)
1302	{	1465	{
1303	int i;	1466	int i;
1304		1467
		1468	if (revents & EV_READ)
		1469	{
1305	#if EV_USE_EVENTFD	1470	#if EV_USE_EVENTFD
1306	if (evfd >= 0)	1471	if (evfd >= 0)
1307	{	1472	{
1308	uint64_t counter;	1473	uint64_t counter;
1309	read (evfd, &counter, sizeof (uint64_t));	1474	read (evfd, &counter, sizeof (uint64_t));
1310	}	1475	}
1311	else	1476	else
1312	#endif	1477	#endif
1313	{	1478	{
1314	char dummy;	1479	char dummy;
1315	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1480	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1316	read (evpipe [0], &dummy, 1);	1481	read (evpipe [0], &dummy, 1);
		1482	}
1317	}	1483	}
1318		1484
		1485	pipe_write_skipped = 0;
		1486
		1487	#if EV_SIGNAL_ENABLE
1319	if (sig_pending)	1488	if (sig_pending)
1320	{	1489	{
1321	sig_pending = 0;	1490	sig_pending = 0;
1322		1491
1323	for (i = EV_NSIG - 1; i--; )	1492	for (i = EV_NSIG - 1; i--; )
1324	if (expect_false (signals [i].pending))	1493	if (expect_false (signals [i].pending))
1325	ev_feed_signal_event (EV_A_ i + 1);	1494	ev_feed_signal_event (EV_A_ i + 1);
1326	}	1495	}
		1496	#endif
1327		1497
1328	#if EV_ASYNC_ENABLE	1498	#if EV_ASYNC_ENABLE
1329	if (async_pending)	1499	if (async_pending)
1330	{	1500	{
1331	async_pending = 0;	1501	async_pending = 0;
…		…
1340	#endif	1510	#endif
1341	}	1511	}
1342		1512
1343	/*****************************************************************************/	1513	/*****************************************************************************/
1344		1514
		1515	void
		1516	ev_feed_signal (int signum)
		1517	{
		1518	#if EV_MULTIPLICITY
		1519	EV_P = signals [signum - 1].loop;
		1520
		1521	if (!EV_A)
		1522	return;
		1523	#endif
		1524
		1525	if (!ev_active (&pipe_w))
		1526	return;
		1527
		1528	signals [signum - 1].pending = 1;
		1529	evpipe_write (EV_A_ &sig_pending);
		1530	}
		1531
1345	static void	1532	static void
1346	ev_sighandler (int signum)	1533	ev_sighandler (int signum)
1347	{	1534	{
1348	#if EV_MULTIPLICITY
1349	EV_P = signals [signum - 1].loop;
1350	#endif
1351
1352	#ifdef _WIN32	1535	#ifdef _WIN32
1353	signal (signum, ev_sighandler);	1536	signal (signum, ev_sighandler);
1354	#endif	1537	#endif
1355		1538
1356	signals [signum - 1].pending = 1;	1539	ev_feed_signal (signum);
1357	evpipe_write (EV_A_ &sig_pending);
1358	}	1540	}
1359		1541
1360	void noinline	1542	void noinline
1361	ev_feed_signal_event (EV_P_ int signum)	1543	ev_feed_signal_event (EV_P_ int signum)
1362	{	1544	{
…		…
1462		1644
1463	#endif	1645	#endif
1464		1646
1465	/*****************************************************************************/	1647	/*****************************************************************************/
1466		1648
		1649	#if EV_USE_IOCP
		1650	# include "ev_iocp.c"
		1651	#endif
1467	#if EV_USE_PORT	1652	#if EV_USE_PORT
1468	# include "ev_port.c"	1653	# include "ev_port.c"
1469	#endif	1654	#endif
1470	#if EV_USE_KQUEUE	1655	#if EV_USE_KQUEUE
1471	# include "ev_kqueue.c"	1656	# include "ev_kqueue.c"
…		…
1478	#endif	1663	#endif
1479	#if EV_USE_SELECT	1664	#if EV_USE_SELECT
1480	# include "ev_select.c"	1665	# include "ev_select.c"
1481	#endif	1666	#endif
1482		1667
1483	int	1668	int ecb_cold
1484	ev_version_major (void)	1669	ev_version_major (void)
1485	{	1670	{
1486	return EV_VERSION_MAJOR;	1671	return EV_VERSION_MAJOR;
1487	}	1672	}
1488		1673
1489	int	1674	int ecb_cold
1490	ev_version_minor (void)	1675	ev_version_minor (void)
1491	{	1676	{
1492	return EV_VERSION_MINOR;	1677	return EV_VERSION_MINOR;
1493	}	1678	}
1494		1679
1495	/* return true if we are running with elevated privileges and should ignore env variables */	1680	/* return true if we are running with elevated privileges and should ignore env variables */
1496	int inline_size	1681	int inline_size ecb_cold
1497	enable_secure (void)	1682	enable_secure (void)
1498	{	1683	{
1499	#ifdef _WIN32	1684	#ifdef _WIN32
1500	return 0;	1685	return 0;
1501	#else	1686	#else
1502	return getuid () != geteuid ()	1687	return getuid () != geteuid ()
1503	|| getgid () != getegid ();	1688	|| getgid () != getegid ();
1504	#endif	1689	#endif
1505	}	1690	}
1506		1691
1507	unsigned int	1692	unsigned int ecb_cold
1508	ev_supported_backends (void)	1693	ev_supported_backends (void)
1509	{	1694	{
1510	unsigned int flags = 0;	1695	unsigned int flags = 0;
1511		1696
1512	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	1697	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
…		…
1516	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	1701	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1517		1702
1518	return flags;	1703	return flags;
1519	}	1704	}
1520		1705
1521	unsigned int	1706	unsigned int ecb_cold
1522	ev_recommended_backends (void)	1707	ev_recommended_backends (void)
1523	{	1708	{
1524	unsigned int flags = ev_supported_backends ();	1709	unsigned int flags = ev_supported_backends ();
1525		1710
1526	#ifndef __NetBSD__	1711	#ifndef __NetBSD__
…		…
1538	#endif	1723	#endif
1539		1724
1540	return flags;	1725	return flags;
1541	}	1726	}
1542		1727
1543	unsigned int	1728	unsigned int ecb_cold
1544	ev_embeddable_backends (void)	1729	ev_embeddable_backends (void)
1545	{	1730	{
1546	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	1731	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1547		1732
1548	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1733	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1549	/* please fix it and tell me how to detect the fix */	1734	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1550	flags &= ~EVBACKEND_EPOLL;	1735	flags &= ~EVBACKEND_EPOLL;
1551		1736
1552	return flags;	1737	return flags;
1553	}	1738	}
1554		1739
1555	unsigned int	1740	unsigned int
…		…
1593	ev_userdata (EV_P)	1778	ev_userdata (EV_P)
1594	{	1779	{
1595	return userdata;	1780	return userdata;
1596	}	1781	}
1597		1782
		1783	void
1598	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	1784	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1599	{	1785	{
1600	invoke_cb = invoke_pending_cb;	1786	invoke_cb = invoke_pending_cb;
1601	}	1787	}
1602		1788
		1789	void
1603	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	1790	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1604	{	1791	{
1605	release_cb = release;	1792	release_cb = release;
1606	acquire_cb = acquire;	1793	acquire_cb = acquire;
1607	}	1794	}
1608	#endif	1795	#endif
1609		1796
1610	/* initialise a loop structure, must be zero-initialised */	1797	/* initialise a loop structure, must be zero-initialised */
1611	static void noinline	1798	static void noinline ecb_cold
1612	loop_init (EV_P_ unsigned int flags)	1799	loop_init (EV_P_ unsigned int flags)
1613	{	1800	{
1614	if (!backend)	1801	if (!backend)
1615	{	1802	{
		1803	origflags = flags;
		1804
1616	#if EV_USE_REALTIME	1805	#if EV_USE_REALTIME
1617	if (!have_realtime)	1806	if (!have_realtime)
1618	{	1807	{
1619	struct timespec ts;	1808	struct timespec ts;
1620		1809
…		…
1642	if (!(flags & EVFLAG_NOENV)	1831	if (!(flags & EVFLAG_NOENV)
1643	&& !enable_secure ()	1832	&& !enable_secure ()
1644	&& getenv ("LIBEV_FLAGS"))	1833	&& getenv ("LIBEV_FLAGS"))
1645	flags = atoi (getenv ("LIBEV_FLAGS"));	1834	flags = atoi (getenv ("LIBEV_FLAGS"));
1646		1835
1647	ev_rt_now = ev_time ();	1836	ev_rt_now = ev_time ();
1648	mn_now = get_clock ();	1837	mn_now = get_clock ();
1649	now_floor = mn_now;	1838	now_floor = mn_now;
1650	rtmn_diff = ev_rt_now - mn_now;	1839	rtmn_diff = ev_rt_now - mn_now;
1651	#if EV_FEATURE_API	1840	#if EV_FEATURE_API
1652	invoke_cb = ev_invoke_pending;	1841	invoke_cb = ev_invoke_pending;
1653	#endif	1842	#endif
1654		1843
1655	io_blocktime = 0.;	1844	io_blocktime = 0.;
1656	timeout_blocktime = 0.;	1845	timeout_blocktime = 0.;
1657	backend = 0;	1846	backend = 0;
1658	backend_fd = -1;	1847	backend_fd = -1;
1659	sig_pending = 0;	1848	sig_pending = 0;
1660	#if EV_ASYNC_ENABLE	1849	#if EV_ASYNC_ENABLE
1661	async_pending = 0;	1850	async_pending = 0;
1662	#endif	1851	#endif
		1852	pipe_write_skipped = 0;
		1853	pipe_write_wanted = 0;
1663	#if EV_USE_INOTIFY	1854	#if EV_USE_INOTIFY
1664	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1855	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1665	#endif	1856	#endif
1666	#if EV_USE_SIGNALFD	1857	#if EV_USE_SIGNALFD
1667	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	1858	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1668	#endif	1859	#endif
1669		1860
1670	if (!(flags & 0x0000ffffU))	1861	if (!(flags & EVBACKEND_MASK))
1671	flags |= ev_recommended_backends ();	1862	flags |= ev_recommended_backends ();
1672		1863
		1864	#if EV_USE_IOCP
		1865	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1866	#endif
1673	#if EV_USE_PORT	1867	#if EV_USE_PORT
1674	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1868	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1675	#endif	1869	#endif
1676	#if EV_USE_KQUEUE	1870	#if EV_USE_KQUEUE
1677	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1871	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1694	#endif	1888	#endif
1695	}	1889	}
1696	}	1890	}
1697		1891
1698	/* free up a loop structure */	1892	/* free up a loop structure */
1699	static void noinline	1893	void ecb_cold
1700	loop_destroy (EV_P)	1894	ev_loop_destroy (EV_P)
1701	{	1895	{
1702	int i;	1896	int i;
		1897
		1898	#if EV_MULTIPLICITY
		1899	/* mimic free (0) */
		1900	if (!EV_A)
		1901	return;
		1902	#endif
		1903
		1904	#if EV_CLEANUP_ENABLE
		1905	/* queue cleanup watchers (and execute them) */
		1906	if (expect_false (cleanupcnt))
		1907	{
		1908	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1909	EV_INVOKE_PENDING;
		1910	}
		1911	#endif
		1912
		1913	#if EV_CHILD_ENABLE
		1914	if (ev_is_active (&childev))
		1915	{
		1916	ev_ref (EV_A); /* child watcher */
		1917	ev_signal_stop (EV_A_ &childev);
		1918	}
		1919	#endif
1703		1920
1704	if (ev_is_active (&pipe_w))	1921	if (ev_is_active (&pipe_w))
1705	{	1922	{
1706	/*ev_ref (EV_A);*/	1923	/*ev_ref (EV_A);*/
1707	/*ev_io_stop (EV_A_ &pipe_w);*/	1924	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1729	#endif	1946	#endif
1730		1947
1731	if (backend_fd >= 0)	1948	if (backend_fd >= 0)
1732	close (backend_fd);	1949	close (backend_fd);
1733		1950
		1951	#if EV_USE_IOCP
		1952	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1953	#endif
1734	#if EV_USE_PORT	1954	#if EV_USE_PORT
1735	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	1955	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1736	#endif	1956	#endif
1737	#if EV_USE_KQUEUE	1957	#if EV_USE_KQUEUE
1738	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	1958	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1765	array_free (periodic, EMPTY);	1985	array_free (periodic, EMPTY);
1766	#endif	1986	#endif
1767	#if EV_FORK_ENABLE	1987	#if EV_FORK_ENABLE
1768	array_free (fork, EMPTY);	1988	array_free (fork, EMPTY);
1769	#endif	1989	#endif
		1990	#if EV_CLEANUP_ENABLE
		1991	array_free (cleanup, EMPTY);
		1992	#endif
1770	array_free (prepare, EMPTY);	1993	array_free (prepare, EMPTY);
1771	array_free (check, EMPTY);	1994	array_free (check, EMPTY);
1772	#if EV_ASYNC_ENABLE	1995	#if EV_ASYNC_ENABLE
1773	array_free (async, EMPTY);	1996	array_free (async, EMPTY);
1774	#endif	1997	#endif
1775		1998
1776	backend = 0;	1999	backend = 0;
		2000
		2001	#if EV_MULTIPLICITY
		2002	if (ev_is_default_loop (EV_A))
		2003	#endif
		2004	ev_default_loop_ptr = 0;
		2005	#if EV_MULTIPLICITY
		2006	else
		2007	ev_free (EV_A);
		2008	#endif
1777	}	2009	}
1778		2010
1779	#if EV_USE_INOTIFY	2011	#if EV_USE_INOTIFY
1780	inline_size void infy_fork (EV_P);	2012	inline_size void infy_fork (EV_P);
1781	#endif	2013	#endif
…		…
1796	infy_fork (EV_A);	2028	infy_fork (EV_A);
1797	#endif	2029	#endif
1798		2030
1799	if (ev_is_active (&pipe_w))	2031	if (ev_is_active (&pipe_w))
1800	{	2032	{
1801	/* this "locks" the handlers against writing to the pipe */	2033	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1802	/* while we modify the fd vars */
1803	sig_pending = 1;
1804	#if EV_ASYNC_ENABLE
1805	async_pending = 1;
1806	#endif
1807		2034
1808	ev_ref (EV_A);	2035	ev_ref (EV_A);
1809	ev_io_stop (EV_A_ &pipe_w);	2036	ev_io_stop (EV_A_ &pipe_w);
1810		2037
1811	#if EV_USE_EVENTFD	2038	#if EV_USE_EVENTFD
…		…
1829	postfork = 0;	2056	postfork = 0;
1830	}	2057	}
1831		2058
1832	#if EV_MULTIPLICITY	2059	#if EV_MULTIPLICITY
1833		2060
1834	struct ev_loop *	2061	struct ev_loop * ecb_cold
1835	ev_loop_new (unsigned int flags)	2062	ev_loop_new (unsigned int flags)
1836	{	2063	{
1837	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2064	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1838		2065
1839	memset (EV_A, 0, sizeof (struct ev_loop));	2066	memset (EV_A, 0, sizeof (struct ev_loop));
1840	loop_init (EV_A_ flags);	2067	loop_init (EV_A_ flags);
1841		2068
1842	if (ev_backend (EV_A))	2069	if (ev_backend (EV_A))
1843	return EV_A;	2070	return EV_A;
1844		2071
		2072	ev_free (EV_A);
1845	return 0;	2073	return 0;
1846	}	2074	}
1847		2075
1848	void
1849	ev_loop_destroy (EV_P)
1850	{
1851	loop_destroy (EV_A);
1852	ev_free (loop);
1853	}
1854
1855	void
1856	ev_loop_fork (EV_P)
1857	{
1858	postfork = 1; /* must be in line with ev_default_fork */
1859	}
1860	#endif /* multiplicity */	2076	#endif /* multiplicity */
1861		2077
1862	#if EV_VERIFY	2078	#if EV_VERIFY
1863	static void noinline	2079	static void noinline ecb_cold
1864	verify_watcher (EV_P_ W w)	2080	verify_watcher (EV_P_ W w)
1865	{	2081	{
1866	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2082	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1867		2083
1868	if (w->pending)	2084	if (w->pending)
1869	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2085	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1870	}	2086	}
1871		2087
1872	static void noinline	2088	static void noinline ecb_cold
1873	verify_heap (EV_P_ ANHE *heap, int N)	2089	verify_heap (EV_P_ ANHE *heap, int N)
1874	{	2090	{
1875	int i;	2091	int i;
1876		2092
1877	for (i = HEAP0; i < N + HEAP0; ++i)	2093	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
1882		2098
1883	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2099	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1884	}	2100	}
1885	}	2101	}
1886		2102
1887	static void noinline	2103	static void noinline ecb_cold
1888	array_verify (EV_P_ W *ws, int cnt)	2104	array_verify (EV_P_ W *ws, int cnt)
1889	{	2105	{
1890	while (cnt--)	2106	while (cnt--)
1891	{	2107	{
1892	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2108	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
1894	}	2110	}
1895	}	2111	}
1896	#endif	2112	#endif
1897		2113
1898	#if EV_FEATURE_API	2114	#if EV_FEATURE_API
1899	void	2115	void ecb_cold
1900	ev_verify (EV_P)	2116	ev_verify (EV_P)
1901	{	2117	{
1902	#if EV_VERIFY	2118	#if EV_VERIFY
1903	int i;	2119	int i;
1904	WL w;	2120	WL w;
…		…
1939	#if EV_FORK_ENABLE	2155	#if EV_FORK_ENABLE
1940	assert (forkmax >= forkcnt);	2156	assert (forkmax >= forkcnt);
1941	array_verify (EV_A_ (W *)forks, forkcnt);	2157	array_verify (EV_A_ (W *)forks, forkcnt);
1942	#endif	2158	#endif
1943		2159
		2160	#if EV_CLEANUP_ENABLE
		2161	assert (cleanupmax >= cleanupcnt);
		2162	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2163	#endif
		2164
1944	#if EV_ASYNC_ENABLE	2165	#if EV_ASYNC_ENABLE
1945	assert (asyncmax >= asynccnt);	2166	assert (asyncmax >= asynccnt);
1946	array_verify (EV_A_ (W *)asyncs, asynccnt);	2167	array_verify (EV_A_ (W *)asyncs, asynccnt);
1947	#endif	2168	#endif
1948		2169
…		…
1965	#endif	2186	#endif
1966	}	2187	}
1967	#endif	2188	#endif
1968		2189
1969	#if EV_MULTIPLICITY	2190	#if EV_MULTIPLICITY
1970	struct ev_loop *	2191	struct ev_loop * ecb_cold
1971	ev_default_loop_init (unsigned int flags)
1972	#else	2192	#else
1973	int	2193	int
		2194	#endif
1974	ev_default_loop (unsigned int flags)	2195	ev_default_loop (unsigned int flags)
1975	#endif
1976	{	2196	{
1977	if (!ev_default_loop_ptr)	2197	if (!ev_default_loop_ptr)
1978	{	2198	{
1979	#if EV_MULTIPLICITY	2199	#if EV_MULTIPLICITY
1980	EV_P = ev_default_loop_ptr = &default_loop_struct;	2200	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1999		2219
2000	return ev_default_loop_ptr;	2220	return ev_default_loop_ptr;
2001	}	2221	}
2002		2222
2003	void	2223	void
2004	ev_default_destroy (void)	2224	ev_loop_fork (EV_P)
2005	{	2225	{
2006	#if EV_MULTIPLICITY
2007	EV_P = ev_default_loop_ptr;
2008	#endif
2009
2010	ev_default_loop_ptr = 0;
2011
2012	#if EV_CHILD_ENABLE
2013	ev_ref (EV_A); /* child watcher */
2014	ev_signal_stop (EV_A_ &childev);
2015	#endif
2016
2017	loop_destroy (EV_A);
2018	}
2019
2020	void
2021	ev_default_fork (void)
2022	{
2023	#if EV_MULTIPLICITY
2024	EV_P = ev_default_loop_ptr;
2025	#endif
2026
2027	postfork = 1; /* must be in line with ev_loop_fork */	2226	postfork = 1; /* must be in line with ev_default_fork */
2028	}	2227	}
2029		2228
2030	/*****************************************************************************/	2229	/*****************************************************************************/
2031		2230
2032	void	2231	void
…		…
2054		2253
2055	for (pri = NUMPRI; pri--; )	2254	for (pri = NUMPRI; pri--; )
2056	while (pendingcnt [pri])	2255	while (pendingcnt [pri])
2057	{	2256	{
2058	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2257	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2059
2060	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2061	/* ^ this is no longer true, as pending_w could be here */
2062		2258
2063	p->w->pending = 0;	2259	p->w->pending = 0;
2064	EV_CB_INVOKE (p->w, p->events);	2260	EV_CB_INVOKE (p->w, p->events);
2065	EV_FREQUENT_CHECK;	2261	EV_FREQUENT_CHECK;
2066	}	2262	}
…		…
2128	feed_reverse_done (EV_A_ EV_TIMER);	2324	feed_reverse_done (EV_A_ EV_TIMER);
2129	}	2325	}
2130	}	2326	}
2131		2327
2132	#if EV_PERIODIC_ENABLE	2328	#if EV_PERIODIC_ENABLE
		2329
		2330	static void noinline
		2331	periodic_recalc (EV_P_ ev_periodic *w)
		2332	{
		2333	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
		2334	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
		2335
		2336	/* the above almost always errs on the low side */
		2337	while (at <= ev_rt_now)
		2338	{
		2339	ev_tstamp nat = at + w->interval;
		2340
		2341	/* when resolution fails us, we use ev_rt_now */
		2342	if (expect_false (nat == at))
		2343	{
		2344	at = ev_rt_now;
		2345	break;
		2346	}
		2347
		2348	at = nat;
		2349	}
		2350
		2351	ev_at (w) = at;
		2352	}
		2353
2133	/* make periodics pending */	2354	/* make periodics pending */
2134	inline_size void	2355	inline_size void
2135	periodics_reify (EV_P)	2356	periodics_reify (EV_P)
2136	{	2357	{
2137	EV_FREQUENT_CHECK;	2358	EV_FREQUENT_CHECK;
…		…
2156	ANHE_at_cache (periodics [HEAP0]);	2377	ANHE_at_cache (periodics [HEAP0]);
2157	downheap (periodics, periodiccnt, HEAP0);	2378	downheap (periodics, periodiccnt, HEAP0);
2158	}	2379	}
2159	else if (w->interval)	2380	else if (w->interval)
2160	{	2381	{
2161	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2382	periodic_recalc (EV_A_ w);
2162	/* if next trigger time is not sufficiently in the future, put it there */
2163	/* this might happen because of floating point inexactness */
2164	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2165	{
2166	ev_at (w) += w->interval;
2167
2168	/* if interval is unreasonably low we might still have a time in the past */
2169	/* so correct this. this will make the periodic very inexact, but the user */
2170	/* has effectively asked to get triggered more often than possible */
2171	if (ev_at (w) < ev_rt_now)
2172	ev_at (w) = ev_rt_now;
2173	}
2174
2175	ANHE_at_cache (periodics [HEAP0]);	2383	ANHE_at_cache (periodics [HEAP0]);
2176	downheap (periodics, periodiccnt, HEAP0);	2384	downheap (periodics, periodiccnt, HEAP0);
2177	}	2385	}
2178	else	2386	else
2179	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2387	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2187	}	2395	}
2188	}	2396	}
2189		2397
2190	/* simply recalculate all periodics */	2398	/* simply recalculate all periodics */
2191	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2399	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2192	static void noinline	2400	static void noinline ecb_cold
2193	periodics_reschedule (EV_P)	2401	periodics_reschedule (EV_P)
2194	{	2402	{
2195	int i;	2403	int i;
2196		2404
2197	/* adjust periodics after time jump */	2405	/* adjust periodics after time jump */
…		…
2200	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);	2408	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2201		2409
2202	if (w->reschedule_cb)	2410	if (w->reschedule_cb)
2203	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2411	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2204	else if (w->interval)	2412	else if (w->interval)
2205	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2413	periodic_recalc (EV_A_ w);
2206		2414
2207	ANHE_at_cache (periodics [i]);	2415	ANHE_at_cache (periodics [i]);
2208	}	2416	}
2209		2417
2210	reheap (periodics, periodiccnt);	2418	reheap (periodics, periodiccnt);
2211	}	2419	}
2212	#endif	2420	#endif
2213		2421
2214	/* adjust all timers by a given offset */	2422	/* adjust all timers by a given offset */
2215	static void noinline	2423	static void noinline ecb_cold
2216	timers_reschedule (EV_P_ ev_tstamp adjust)	2424	timers_reschedule (EV_P_ ev_tstamp adjust)
2217	{	2425	{
2218	int i;	2426	int i;
2219		2427
2220	for (i = 0; i < timercnt; ++i)	2428	for (i = 0; i < timercnt; ++i)
…		…
2257	* doesn't hurt either as we only do this on time-jumps or	2465	* doesn't hurt either as we only do this on time-jumps or
2258	* in the unlikely event of having been preempted here.	2466	* in the unlikely event of having been preempted here.
2259	*/	2467	*/
2260	for (i = 4; --i; )	2468	for (i = 4; --i; )
2261	{	2469	{
		2470	ev_tstamp diff;
2262	rtmn_diff = ev_rt_now - mn_now;	2471	rtmn_diff = ev_rt_now - mn_now;
2263		2472
		2473	diff = odiff - rtmn_diff;
		2474
2264	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2475	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2265	return; /* all is well */	2476	return; /* all is well */
2266		2477
2267	ev_rt_now = ev_time ();	2478	ev_rt_now = ev_time ();
2268	mn_now = get_clock ();	2479	mn_now = get_clock ();
2269	now_floor = mn_now;	2480	now_floor = mn_now;
…		…
2292	mn_now = ev_rt_now;	2503	mn_now = ev_rt_now;
2293	}	2504	}
2294	}	2505	}
2295		2506
2296	void	2507	void
2297	ev_loop (EV_P_ int flags)	2508	ev_run (EV_P_ int flags)
2298	{	2509	{
2299	#if EV_FEATURE_API	2510	#if EV_FEATURE_API
2300	++loop_depth;	2511	++loop_depth;
2301	#endif	2512	#endif
2302		2513
2303	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2514	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2304		2515
2305	loop_done = EVUNLOOP_CANCEL;	2516	loop_done = EVBREAK_CANCEL;
2306		2517
2307	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2518	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2308		2519
2309	do	2520	do
2310	{	2521	{
…		…
2353	/* calculate blocking time */	2564	/* calculate blocking time */
2354	{	2565	{
2355	ev_tstamp waittime = 0.;	2566	ev_tstamp waittime = 0.;
2356	ev_tstamp sleeptime = 0.;	2567	ev_tstamp sleeptime = 0.;
2357		2568
		2569	/* remember old timestamp for io_blocktime calculation */
		2570	ev_tstamp prev_mn_now = mn_now;
		2571
		2572	/* update time to cancel out callback processing overhead */
		2573	time_update (EV_A_ 1e100);
		2574
		2575	/* from now on, we want a pipe-wake-up */
		2576	pipe_write_wanted = 1;
		2577
2358	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2578	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2359	{	2579	{
2360	/* remember old timestamp for io_blocktime calculation */
2361	ev_tstamp prev_mn_now = mn_now;
2362
2363	/* update time to cancel out callback processing overhead */
2364	time_update (EV_A_ 1e100);
2365
2366	waittime = MAX_BLOCKTIME;	2580	waittime = MAX_BLOCKTIME;
2367		2581
2368	if (timercnt)	2582	if (timercnt)
2369	{	2583	{
2370	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2584	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2371	if (waittime > to) waittime = to;	2585	if (waittime > to) waittime = to;
2372	}	2586	}
2373		2587
2374	#if EV_PERIODIC_ENABLE	2588	#if EV_PERIODIC_ENABLE
2375	if (periodiccnt)	2589	if (periodiccnt)
2376	{	2590	{
2377	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2591	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2378	if (waittime > to) waittime = to;	2592	if (waittime > to) waittime = to;
2379	}	2593	}
2380	#endif	2594	#endif
2381		2595
2382	/* don't let timeouts decrease the waittime below timeout_blocktime */	2596	/* don't let timeouts decrease the waittime below timeout_blocktime */
2383	if (expect_false (waittime < timeout_blocktime))	2597	if (expect_false (waittime < timeout_blocktime))
2384	waittime = timeout_blocktime;	2598	waittime = timeout_blocktime;
		2599
		2600	/* at this point, we NEED to wait, so we have to ensure */
		2601	/* to pass a minimum nonzero value to the backend */
		2602	if (expect_false (waittime < backend_mintime))
		2603	waittime = backend_mintime;
2385		2604
2386	/* extra check because io_blocktime is commonly 0 */	2605	/* extra check because io_blocktime is commonly 0 */
2387	if (expect_false (io_blocktime))	2606	if (expect_false (io_blocktime))
2388	{	2607	{
2389	sleeptime = io_blocktime - (mn_now - prev_mn_now);	2608	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2390		2609
2391	if (sleeptime > waittime - backend_fudge)	2610	if (sleeptime > waittime - backend_mintime)
2392	sleeptime = waittime - backend_fudge;	2611	sleeptime = waittime - backend_mintime;
2393		2612
2394	if (expect_true (sleeptime > 0.))	2613	if (expect_true (sleeptime > 0.))
2395	{	2614	{
2396	ev_sleep (sleeptime);	2615	ev_sleep (sleeptime);
2397	waittime -= sleeptime;	2616	waittime -= sleeptime;
…		…
2400	}	2619	}
2401		2620
2402	#if EV_FEATURE_API	2621	#if EV_FEATURE_API
2403	++loop_count;	2622	++loop_count;
2404	#endif	2623	#endif
2405	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2624	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2406	backend_poll (EV_A_ waittime);	2625	backend_poll (EV_A_ waittime);
2407	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2626	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
		2627
		2628	pipe_write_wanted = 0;
		2629
		2630	if (pipe_write_skipped)
		2631	{
		2632	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		2633	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		2634	}
		2635
2408		2636
2409	/* update ev_rt_now, do magic */	2637	/* update ev_rt_now, do magic */
2410	time_update (EV_A_ waittime + sleeptime);	2638	time_update (EV_A_ waittime + sleeptime);
2411	}	2639	}
2412		2640
…		…
2430	EV_INVOKE_PENDING;	2658	EV_INVOKE_PENDING;
2431	}	2659	}
2432	while (expect_true (	2660	while (expect_true (
2433	activecnt	2661	activecnt
2434	&& !loop_done	2662	&& !loop_done
2435	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	2663	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2436	));	2664	));
2437		2665
2438	if (loop_done == EVUNLOOP_ONE)	2666	if (loop_done == EVBREAK_ONE)
2439	loop_done = EVUNLOOP_CANCEL;	2667	loop_done = EVBREAK_CANCEL;
2440		2668
2441	#if EV_FEATURE_API	2669	#if EV_FEATURE_API
2442	--loop_depth;	2670	--loop_depth;
2443	#endif	2671	#endif
2444	}	2672	}
2445		2673
2446	void	2674	void
2447	ev_unloop (EV_P_ int how)	2675	ev_break (EV_P_ int how)
2448	{	2676	{
2449	loop_done = how;	2677	loop_done = how;
2450	}	2678	}
2451		2679
2452	void	2680	void
…		…
2702	if (w->reschedule_cb)	2930	if (w->reschedule_cb)
2703	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2931	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2704	else if (w->interval)	2932	else if (w->interval)
2705	{	2933	{
2706	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	2934	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2707	/* this formula differs from the one in periodic_reify because we do not always round up */	2935	periodic_recalc (EV_A_ w);
2708	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2709	}	2936	}
2710	else	2937	else
2711	ev_at (w) = w->offset;	2938	ev_at (w) = w->offset;
2712		2939
2713	EV_FREQUENT_CHECK;	2940	EV_FREQUENT_CHECK;
…		…
2834	sa.sa_handler = ev_sighandler;	3061	sa.sa_handler = ev_sighandler;
2835	sigfillset (&sa.sa_mask);	3062	sigfillset (&sa.sa_mask);
2836	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	3063	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2837	sigaction (w->signum, &sa, 0);	3064	sigaction (w->signum, &sa, 0);
2838		3065
		3066	if (origflags & EVFLAG_NOSIGMASK)
		3067	{
2839	sigemptyset (&sa.sa_mask);	3068	sigemptyset (&sa.sa_mask);
2840	sigaddset (&sa.sa_mask, w->signum);	3069	sigaddset (&sa.sa_mask, w->signum);
2841	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	3070	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		3071	}
2842	#endif	3072	#endif
2843	}	3073	}
2844		3074
2845	EV_FREQUENT_CHECK;	3075	EV_FREQUENT_CHECK;
2846	}	3076	}
…		…
2987	if (!pend || pend == path)	3217	if (!pend || pend == path)
2988	break;	3218	break;
2989		3219
2990	*pend = 0;	3220	*pend = 0;
2991	w->wd = inotify_add_watch (fs_fd, path, mask);	3221	w->wd = inotify_add_watch (fs_fd, path, mask);
2992	}	3222	}
2993	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3223	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2994	}	3224	}
2995	}	3225	}
2996		3226
2997	if (w->wd >= 0)	3227	if (w->wd >= 0)
…		…
3064	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3294	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3065	ofs += sizeof (struct inotify_event) + ev->len;	3295	ofs += sizeof (struct inotify_event) + ev->len;
3066	}	3296	}
3067	}	3297	}
3068		3298
3069	inline_size unsigned int
3070	ev_linux_version (void)
3071	{
3072	struct utsname buf;
3073	unsigned int v;
3074	int i;
3075	char *p = buf.release;
3076
3077	if (uname (&buf))
3078	return 0;
3079
3080	for (i = 3+1; --i; )
3081	{
3082	unsigned int c = 0;
3083
3084	for (;;)
3085	{
3086	if (*p >= '0' && *p <= '9')
3087	c = c * 10 + *p++ - '0';
3088	else
3089	{
3090	p += *p == '.';
3091	break;
3092	}
3093	}
3094
3095	v = (v << 8) | c;
3096	}
3097
3098	return v;
3099	}
3100
3101	inline_size void	3299	inline_size void ecb_cold
3102	ev_check_2625 (EV_P)	3300	ev_check_2625 (EV_P)
3103	{	3301	{
3104	/* kernels < 2.6.25 are borked	3302	/* kernels < 2.6.25 are borked
3105	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3303	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3106	*/	3304	*/
…		…
3427		3625
3428	#if EV_EMBED_ENABLE	3626	#if EV_EMBED_ENABLE
3429	void noinline	3627	void noinline
3430	ev_embed_sweep (EV_P_ ev_embed *w)	3628	ev_embed_sweep (EV_P_ ev_embed *w)
3431	{	3629	{
3432	ev_loop (w->other, EVLOOP_NONBLOCK);	3630	ev_run (w->other, EVRUN_NOWAIT);
3433	}	3631	}
3434		3632
3435	static void	3633	static void
3436	embed_io_cb (EV_P_ ev_io *io, int revents)	3634	embed_io_cb (EV_P_ ev_io *io, int revents)
3437	{	3635	{
3438	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3636	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3439		3637
3440	if (ev_cb (w))	3638	if (ev_cb (w))
3441	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3639	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3442	else	3640	else
3443	ev_loop (w->other, EVLOOP_NONBLOCK);	3641	ev_run (w->other, EVRUN_NOWAIT);
3444	}	3642	}
3445		3643
3446	static void	3644	static void
3447	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3645	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3448	{	3646	{
…		…
3452	EV_P = w->other;	3650	EV_P = w->other;
3453		3651
3454	while (fdchangecnt)	3652	while (fdchangecnt)
3455	{	3653	{
3456	fd_reify (EV_A);	3654	fd_reify (EV_A);
3457	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3655	ev_run (EV_A_ EVRUN_NOWAIT);
3458	}	3656	}
3459	}	3657	}
3460	}	3658	}
3461		3659
3462	static void	3660	static void
…		…
3468		3666
3469	{	3667	{
3470	EV_P = w->other;	3668	EV_P = w->other;
3471		3669
3472	ev_loop_fork (EV_A);	3670	ev_loop_fork (EV_A);
3473	ev_loop (EV_A_ EVLOOP_NONBLOCK);	3671	ev_run (EV_A_ EVRUN_NOWAIT);
3474	}	3672	}
3475		3673
3476	ev_embed_start (EV_A_ w);	3674	ev_embed_start (EV_A_ w);
3477	}	3675	}
3478		3676
…		…
3570		3768
3571	EV_FREQUENT_CHECK;	3769	EV_FREQUENT_CHECK;
3572	}	3770	}
3573	#endif	3771	#endif
3574		3772
		3773	#if EV_CLEANUP_ENABLE
		3774	void
		3775	ev_cleanup_start (EV_P_ ev_cleanup *w)
		3776	{
		3777	if (expect_false (ev_is_active (w)))
		3778	return;
		3779
		3780	EV_FREQUENT_CHECK;
		3781
		3782	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3783	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3784	cleanups [cleanupcnt - 1] = w;
		3785
		3786	/* cleanup watchers should never keep a refcount on the loop */
		3787	ev_unref (EV_A);
		3788	EV_FREQUENT_CHECK;
		3789	}
		3790
		3791	void
		3792	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3793	{
		3794	clear_pending (EV_A_ (W)w);
		3795	if (expect_false (!ev_is_active (w)))
		3796	return;
		3797
		3798	EV_FREQUENT_CHECK;
		3799	ev_ref (EV_A);
		3800
		3801	{
		3802	int active = ev_active (w);
		3803
		3804	cleanups [active - 1] = cleanups [--cleanupcnt];
		3805	ev_active (cleanups [active - 1]) = active;
		3806	}
		3807
		3808	ev_stop (EV_A_ (W)w);
		3809
		3810	EV_FREQUENT_CHECK;
		3811	}
		3812	#endif
		3813
3575	#if EV_ASYNC_ENABLE	3814	#if EV_ASYNC_ENABLE
3576	void	3815	void
3577	ev_async_start (EV_P_ ev_async *w)	3816	ev_async_start (EV_P_ ev_async *w)
3578	{	3817	{
3579	if (expect_false (ev_is_active (w)))	3818	if (expect_false (ev_is_active (w)))
3580	return;	3819	return;
		3820
		3821	w->sent = 0;
3581		3822
3582	evpipe_init (EV_A);	3823	evpipe_init (EV_A);
3583		3824
3584	EV_FREQUENT_CHECK;	3825	EV_FREQUENT_CHECK;
3585		3826
…		…
3688	}	3929	}
3689		3930
3690	/*****************************************************************************/	3931	/*****************************************************************************/
3691		3932
3692	#if EV_WALK_ENABLE	3933	#if EV_WALK_ENABLE
3693	void	3934	void ecb_cold
3694	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	3935	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3695	{	3936	{
3696	int i, j;	3937	int i, j;
3697	ev_watcher_list *wl, *wn;	3938	ev_watcher_list *wl, *wn;
3698		3939
…		…
3805		4046
3806	#if EV_MULTIPLICITY	4047	#if EV_MULTIPLICITY
3807	#include "ev_wrap.h"	4048	#include "ev_wrap.h"
3808	#endif	4049	#endif
3809		4050
3810	#ifdef __cplusplus	4051	EV_CPP(})
3811	}
3812	#endif
3813		4052

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