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

Comparing libev/ev.c (file contents):
Revision 1.356 by root, Fri Oct 22 11:21:52 2010 UTC vs.
Revision 1.390 by root, Thu Aug 4 11:58:02 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,
42	# ifdef EV_CONFIG_H	42	# ifdef EV_CONFIG_H
43	# include EV_CONFIG_H	43	# include EV_CONFIG_H
44	# else	44	# else
45	# include "config.h"	45	# include "config.h"
46	# endif	46	# endif
		47
		48	#if HAVE_FLOOR
		49	# ifndef EV_USE_FLOOR
		50	# define EV_USE_FLOOR 1
		51	# endif
		52	#endif
47		53
48	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
49	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
50	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
51	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
156	# define EV_USE_EVENTFD 0	162	# define EV_USE_EVENTFD 0
157	# endif	163	# endif
158		164
159	#endif	165	#endif
160		166
161	#include <math.h>
162	#include <stdlib.h>	167	#include <stdlib.h>
163	#include <string.h>	168	#include <string.h>
164	#include <fcntl.h>	169	#include <fcntl.h>
165	#include <stddef.h>	170	#include <stddef.h>
166		171
…		…
232	/* to make it compile regardless, just remove the above line, */	237	/* to make it compile regardless, just remove the above line, */
233	/* but consider reporting it, too! :) */	238	/* but consider reporting it, too! :) */
234	# define EV_NSIG 65	239	# define EV_NSIG 65
235	#endif	240	#endif
236		241
		242	#ifndef EV_USE_FLOOR
		243	# define EV_USE_FLOOR 0
		244	#endif
		245
237	#ifndef EV_USE_CLOCK_SYSCALL	246	#ifndef EV_USE_CLOCK_SYSCALL
238	# if __linux && __GLIBC__ >= 2	247	# if __linux && __GLIBC__ >= 2
239	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	248	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
240	# else	249	# else
241	# define EV_USE_CLOCK_SYSCALL 0	250	# define EV_USE_CLOCK_SYSCALL 0
…		…
376	# undef EV_USE_INOTIFY	385	# undef EV_USE_INOTIFY
377	# define EV_USE_INOTIFY 0	386	# define EV_USE_INOTIFY 0
378	#endif	387	#endif
379		388
380	#if !EV_USE_NANOSLEEP	389	#if !EV_USE_NANOSLEEP
381	# ifndef _WIN32	390	/* hp-ux has it in sys/time.h, which we unconditionally include above */
		391	# if !defined(_WIN32) && !defined(__hpux)
382	# include <sys/select.h>	392	# include <sys/select.h>
383	# endif	393	# endif
384	#endif	394	#endif
385		395
386	#if EV_USE_INOTIFY	396	#if EV_USE_INOTIFY
…		…
442	#else	452	#else
443	# define EV_FREQUENT_CHECK do { } while (0)	453	# define EV_FREQUENT_CHECK do { } while (0)
444	#endif	454	#endif
445		455
446	/*	456	/*
447	* This is used to avoid floating point rounding problems.	457	* This is used to work around floating point rounding problems.
448	* It is added to ev_rt_now when scheduling periodics
449	* to ensure progress, time-wise, even when rounding
450	* errors are against us.
451	* This value is good at least till the year 4000.	458	* This value is good at least till the year 4000.
452	* Better solutions welcome.
453	*/	459	*/
454	#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 /
455		462
456	#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) */
457	#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) */
458		465
459	#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)
460	#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)
461		468
462	#if __GNUC__ >= 4	469	/* the following are taken from libecb */
463	# define expect(expr,value) __builtin_expect ((expr),(value))	470	/* ecb.h start */
464	# 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
465	#else	493	#else
466	# define expect(expr,value) (expr)	494	#define ecb_inline static
467	# define noinline
468	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
469	# define inline
470	# endif	495	#endif
		496
		497	#ifndef ECB_MEMORY_FENCE
		498	#if ECB_GCC_VERSION(2,5)
		499	#if __x86
		500	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		501	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		502	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */
		503	#elif __amd64
		504	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		505	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		506	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence")
		507	#endif
471	#endif	508	#endif
		509	#endif
472		510
		511	#ifndef ECB_MEMORY_FENCE
		512	#if ECB_GCC_VERSION(4,4)
		513	#define ECB_MEMORY_FENCE __sync_synchronize ()
		514	#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
		515	#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
		516	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		517	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		518	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		519	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		520	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		521	#elif defined(_WIN32)
		522	#include <WinNT.h>
		523	#define ECB_MEMORY_FENCE MemoryBarrier ()
		524	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		525	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		526	#endif
		527	#endif
		528
		529	#ifndef ECB_MEMORY_FENCE
		530	#include <pthread.h>
		531
		532	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		533	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		534	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		535	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		536	#endif
		537
		538	#if ECB_GCC_VERSION(3,1)
		539	#define ecb_attribute(attrlist) __attribute__(attrlist)
		540	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		541	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		542	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		543	#else
		544	#define ecb_attribute(attrlist)
		545	#define ecb_is_constant(expr) 0
		546	#define ecb_expect(expr,value) (expr)
		547	#define ecb_prefetch(addr,rw,locality)
		548	#endif
		549
		550	#define ecb_noinline ecb_attribute ((__noinline__))
		551	#define ecb_noreturn ecb_attribute ((__noreturn__))
		552	#define ecb_unused ecb_attribute ((__unused__))
		553	#define ecb_const ecb_attribute ((__const__))
		554	#define ecb_pure ecb_attribute ((__pure__))
		555
		556	#if ECB_GCC_VERSION(4,3)
		557	#define ecb_artificial ecb_attribute ((__artificial__))
		558	#define ecb_hot ecb_attribute ((__hot__))
		559	#define ecb_cold ecb_attribute ((__cold__))
		560	#else
		561	#define ecb_artificial
		562	#define ecb_hot
		563	#define ecb_cold
		564	#endif
		565
		566	/* put around conditional expressions if you are very sure that the */
		567	/* expression is mostly true or mostly false. note that these return */
		568	/* booleans, not the expression. */
473	#define expect_false(expr) expect ((expr) != 0, 0)	569	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
474	#define expect_true(expr) expect ((expr) != 0, 1)	570	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		571	/* ecb.h end */
		572
		573	#define expect_false(cond) ecb_expect_false (cond)
		574	#define expect_true(cond) ecb_expect_true (cond)
		575	#define noinline ecb_noinline
		576
475	#define inline_size static inline	577	#define inline_size ecb_inline
476		578
477	#if EV_FEATURE_CODE	579	#if EV_FEATURE_CODE
478	# define inline_speed static inline	580	# define inline_speed ecb_inline
479	#else	581	#else
480	# define inline_speed static noinline	582	# define inline_speed static noinline
481	#endif	583	#endif
482		584
483	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	585	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
522	# include "ev_win32.c"	624	# include "ev_win32.c"
523	#endif	625	#endif
524		626
525	/*****************************************************************************/	627	/*****************************************************************************/
526		628
		629	/* define a suitable floor function (only used by periodics atm) */
		630
		631	#if EV_USE_FLOOR
		632	# include <math.h>
		633	# define ev_floor(v) floor (v)
		634	#else
		635
		636	#include <float.h>
		637
		638	/* a floor() replacement function, should be independent of ev_tstamp type */
		639	static ev_tstamp noinline
		640	ev_floor (ev_tstamp v)
		641	{
		642	/* the choice of shift factor is not terribly important */
		643	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
		644	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
		645	#else
		646	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
		647	#endif
		648
		649	/* argument too large for an unsigned long? */
		650	if (expect_false (v >= shift))
		651	{
		652	ev_tstamp f;
		653
		654	if (v == v - 1.)
		655	return v; /* very large number */
		656
		657	f = shift * ev_floor (v * (1. / shift));
		658	return f + ev_floor (v - f);
		659	}
		660
		661	/* special treatment for negative args? */
		662	if (expect_false (v < 0.))
		663	{
		664	ev_tstamp f = -ev_floor (-v);
		665
		666	return f - (f == v ? 0 : 1);
		667	}
		668
		669	/* fits into an unsigned long */
		670	return (unsigned long)v;
		671	}
		672
		673	#endif
		674
		675	/*****************************************************************************/
		676
527	#ifdef __linux	677	#ifdef __linux
528	# include <sys/utsname.h>	678	# include <sys/utsname.h>
529	#endif	679	#endif
530		680
531	static unsigned int noinline	681	static unsigned int noinline ecb_cold
532	ev_linux_version (void)	682	ev_linux_version (void)
533	{	683	{
534	#ifdef __linux	684	#ifdef __linux
		685	unsigned int v = 0;
535	struct utsname buf;	686	struct utsname buf;
536	unsigned int v;
537	int i;	687	int i;
538	char *p = buf.release;	688	char *p = buf.release;
539		689
540	if (uname (&buf))	690	if (uname (&buf))
541	return 0;	691	return 0;
…		…
565	}	715	}
566		716
567	/*****************************************************************************/	717	/*****************************************************************************/
568		718
569	#if EV_AVOID_STDIO	719	#if EV_AVOID_STDIO
570	static void noinline	720	static void noinline ecb_cold
571	ev_printerr (const char *msg)	721	ev_printerr (const char *msg)
572	{	722	{
573	write (STDERR_FILENO, msg, strlen (msg));	723	write (STDERR_FILENO, msg, strlen (msg));
574	}	724	}
575	#endif	725	#endif
576		726
577	static void (syserr_cb)(const char msg);	727	static void (syserr_cb)(const char msg);
578		728
579	void	729	void ecb_cold
580	ev_set_syserr_cb (void (cb)(const char msg))	730	ev_set_syserr_cb (void (cb)(const char msg))
581	{	731	{
582	syserr_cb = cb;	732	syserr_cb = cb;
583	}	733	}
584		734
585	static void noinline	735	static void noinline ecb_cold
586	ev_syserr (const char *msg)	736	ev_syserr (const char *msg)
587	{	737	{
588	if (!msg)	738	if (!msg)
589	msg = "(libev) system error";	739	msg = "(libev) system error";
590		740
591	if (syserr_cb)	741	if (syserr_cb)
592	syserr_cb (msg);	742	syserr_cb (msg);
593	else	743	else
594	{	744	{
595	#if EV_AVOID_STDIO	745	#if EV_AVOID_STDIO
596	const char *err = strerror (errno);
597
598	ev_printerr (msg);	746	ev_printerr (msg);
599	ev_printerr (": ");	747	ev_printerr (": ");
600	ev_printerr (err);	748	ev_printerr (strerror (errno));
601	ev_printerr ("\n");	749	ev_printerr ("\n");
602	#else	750	#else
603	perror (msg);	751	perror (msg);
604	#endif	752	#endif
605	abort ();	753	abort ();
…		…
625	#endif	773	#endif
626	}	774	}
627		775
628	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	776	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
629		777
630	void	778	void ecb_cold
631	ev_set_allocator (void (cb)(void *ptr, long size))	779	ev_set_allocator (void (cb)(void *ptr, long size))
632	{	780	{
633	alloc = cb;	781	alloc = cb;
634	}	782	}
635		783
…		…
639	ptr = alloc (ptr, size);	787	ptr = alloc (ptr, size);
640		788
641	if (!ptr && size)	789	if (!ptr && size)
642	{	790	{
643	#if EV_AVOID_STDIO	791	#if EV_AVOID_STDIO
644	ev_printerr ("libev: memory allocation failed, aborting.\n");	792	ev_printerr ("(libev) memory allocation failed, aborting.\n");
645	#else	793	#else
646	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	794	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
647	#endif	795	#endif
648	abort ();	796	abort ();
649	}	797	}
650		798
651	return ptr;	799	return ptr;
…		…
668	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	816	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
669	unsigned char unused;	817	unsigned char unused;
670	#if EV_USE_EPOLL	818	#if EV_USE_EPOLL
671	unsigned int egen; /* generation counter to counter epoll bugs */	819	unsigned int egen; /* generation counter to counter epoll bugs */
672	#endif	820	#endif
673	#if EV_SELECT_IS_WINSOCKET	821	#if EV_SELECT_IS_WINSOCKET \|\| EV_USE_IOCP
674	SOCKET handle;	822	SOCKET handle;
		823	#endif
		824	#if EV_USE_IOCP
		825	OVERLAPPED or, ow;
675	#endif	826	#endif
676	} ANFD;	827	} ANFD;
677		828
678	/* stores the pending event set for a given watcher */	829	/* stores the pending event set for a given watcher */
679	typedef struct	830	typedef struct
…		…
841	}	992	}
842		993
843	return ncur;	994	return ncur;
844	}	995	}
845		996
846	static noinline void *	997	static void * noinline ecb_cold
847	array_realloc (int elem, void base, int cur, int cnt)	998	array_realloc (int elem, void base, int cur, int cnt)
848	{	999	{
849	cur = array_nextsize (elem, cur, cnt);	1000	cur = array_nextsize (elem, cur, cnt);
850	return ev_realloc (base, elem * *cur);	1001	return ev_realloc (base, elem * *cur);
851	}	1002	}
…		…
854	memset ((void )(base), 0, sizeof ((base)) * (count))	1005	memset ((void )(base), 0, sizeof ((base)) * (count))
855		1006
856	#define array_needsize(type,base,cur,cnt,init) \	1007	#define array_needsize(type,base,cur,cnt,init) \
857	if (expect_false ((cnt) > (cur))) \	1008	if (expect_false ((cnt) > (cur))) \
858	{ \	1009	{ \
859	int ocur_ = (cur); \	1010	int ecb_unused ocur_ = (cur); \
860	(base) = (type *)array_realloc \	1011	(base) = (type *)array_realloc \
861	(sizeof (type), (base), &(cur), (cnt)); \	1012	(sizeof (type), (base), &(cur), (cnt)); \
862	init ((base) + (ocur_), (cur) - ocur_); \	1013	init ((base) + (ocur_), (cur) - ocur_); \
863	}	1014	}
864		1015
…		…
964	inline_size void	1115	inline_size void
965	fd_reify (EV_P)	1116	fd_reify (EV_P)
966	{	1117	{
967	int i;	1118	int i;
968		1119
		1120	#if EV_SELECT_IS_WINSOCKET \|\| EV_USE_IOCP
		1121	for (i = 0; i < fdchangecnt; ++i)
		1122	{
		1123	int fd = fdchanges [i];
		1124	ANFD *anfd = anfds + fd;
		1125
		1126	if (anfd->reify & EV__IOFDSET && anfd->head)
		1127	{
		1128	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		1129
		1130	if (handle != anfd->handle)
		1131	{
		1132	unsigned long arg;
		1133
		1134	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		1135
		1136	/* handle changed, but fd didn't - we need to do it in two steps */
		1137	backend_modify (EV_A_ fd, anfd->events, 0);
		1138	anfd->events = 0;
		1139	anfd->handle = handle;
		1140	}
		1141	}
		1142	}
		1143	#endif
		1144
969	for (i = 0; i < fdchangecnt; ++i)	1145	for (i = 0; i < fdchangecnt; ++i)
970	{	1146	{
971	int fd = fdchanges [i];	1147	int fd = fdchanges [i];
972	ANFD *anfd = anfds + fd;	1148	ANFD *anfd = anfds + fd;
973	ev_io *w;	1149	ev_io *w;
…		…
975	unsigned char o_events = anfd->events;	1151	unsigned char o_events = anfd->events;
976	unsigned char o_reify = anfd->reify;	1152	unsigned char o_reify = anfd->reify;
977		1153
978	anfd->reify = 0;	1154	anfd->reify = 0;
979		1155
980	#if EV_SELECT_IS_WINSOCKET
981	if (o_reify & EV__IOFDSET)
982	{
983	unsigned long arg;
984	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
985	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
986	}
987	#endif
988
989	/if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation /	1156	/if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation /
990	{	1157	{
991	anfd->events = 0;	1158	anfd->events = 0;
992		1159
993	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)	1160	for (w = (ev_io )anfd->head; w; w = (ev_io )((WL)w)->next)
…		…
1018	fdchanges [fdchangecnt - 1] = fd;	1185	fdchanges [fdchangecnt - 1] = fd;
1019	}	1186	}
1020	}	1187	}
1021		1188
1022	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1189	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1023	inline_speed void	1190	inline_speed void ecb_cold
1024	fd_kill (EV_P_ int fd)	1191	fd_kill (EV_P_ int fd)
1025	{	1192	{
1026	ev_io *w;	1193	ev_io *w;
1027		1194
1028	while ((w = (ev_io *)anfds [fd].head))	1195	while ((w = (ev_io *)anfds [fd].head))
…		…
1031	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	1198	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
1032	}	1199	}
1033	}	1200	}
1034		1201
1035	/* check whether the given fd is actually valid, for error recovery */	1202	/* check whether the given fd is actually valid, for error recovery */
1036	inline_size int	1203	inline_size int ecb_cold
1037	fd_valid (int fd)	1204	fd_valid (int fd)
1038	{	1205	{
1039	#ifdef _WIN32	1206	#ifdef _WIN32
1040	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1207	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1041	#else	1208	#else
1042	return fcntl (fd, F_GETFD) != -1;	1209	return fcntl (fd, F_GETFD) != -1;
1043	#endif	1210	#endif
1044	}	1211	}
1045		1212
1046	/* called on EBADF to verify fds */	1213	/* called on EBADF to verify fds */
1047	static void noinline	1214	static void noinline ecb_cold
1048	fd_ebadf (EV_P)	1215	fd_ebadf (EV_P)
1049	{	1216	{
1050	int fd;	1217	int fd;
1051		1218
1052	for (fd = 0; fd < anfdmax; ++fd)	1219	for (fd = 0; fd < anfdmax; ++fd)
…		…
1054	if (!fd_valid (fd) && errno == EBADF)	1221	if (!fd_valid (fd) && errno == EBADF)
1055	fd_kill (EV_A_ fd);	1222	fd_kill (EV_A_ fd);
1056	}	1223	}
1057		1224
1058	/* called on ENOMEM in select/poll to kill some fds and retry */	1225	/* called on ENOMEM in select/poll to kill some fds and retry */
1059	static void noinline	1226	static void noinline ecb_cold
1060	fd_enomem (EV_P)	1227	fd_enomem (EV_P)
1061	{	1228	{
1062	int fd;	1229	int fd;
1063		1230
1064	for (fd = anfdmax; fd--; )	1231	for (fd = anfdmax; fd--; )
…		…
1259		1426
1260	/*****************************************************************************/	1427	/*****************************************************************************/
1261		1428
1262	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE	1429	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1263		1430
1264	static void noinline	1431	static void noinline ecb_cold
1265	evpipe_init (EV_P)	1432	evpipe_init (EV_P)
1266	{	1433	{
1267	if (!ev_is_active (&pipe_w))	1434	if (!ev_is_active (&pipe_w))
1268	{	1435	{
1269	# if EV_USE_EVENTFD	1436	# if EV_USE_EVENTFD
…		…
1291	ev_io_start (EV_A_ &pipe_w);	1458	ev_io_start (EV_A_ &pipe_w);
1292	ev_unref (EV_A); /* watcher should not keep loop alive */	1459	ev_unref (EV_A); /* watcher should not keep loop alive */
1293	}	1460	}
1294	}	1461	}
1295		1462
1296	inline_size void	1463	inline_speed void
1297	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1464	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1298	{	1465	{
1299	if (!*flag)	1466	if (expect_true (*flag))
		1467	return;
		1468
		1469	*flag = 1;
		1470
		1471	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1472
		1473	pipe_write_skipped = 1;
		1474
		1475	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1476
		1477	if (pipe_write_wanted)
1300	{	1478	{
		1479	int old_errno;
		1480
		1481	pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
		1482
1301	int old_errno = errno; /* save errno because write might clobber it */	1483	old_errno = errno; /* save errno because write will clobber it */
1302	char dummy;
1303
1304	*flag = 1;
1305		1484
1306	#if EV_USE_EVENTFD	1485	#if EV_USE_EVENTFD
1307	if (evfd >= 0)	1486	if (evfd >= 0)
1308	{	1487	{
1309	uint64_t counter = 1;	1488	uint64_t counter = 1;
1310	write (evfd, &counter, sizeof (uint64_t));	1489	write (evfd, &counter, sizeof (uint64_t));
1311	}	1490	}
1312	else	1491	else
1313	#endif	1492	#endif
		1493	{
1314	/* win32 people keep sending patches that change this write() to send() */	1494	/* win32 people keep sending patches that change this write() to send() */
1315	/* and then run away. but send() is wrong, it wants a socket handle on win32 */	1495	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1316	/* so when you think this write should be a send instead, please find out */	1496	/* so when you think this write should be a send instead, please find out */
1317	/* where your send() is from - it's definitely not the microsoft send, and */	1497	/* where your send() is from - it's definitely not the microsoft send, and */
1318	/* tell me. thank you. */	1498	/* tell me. thank you. */
1319	write (evpipe [1], &dummy, 1);	1499	write (evpipe [1], &(evpipe [1]), 1);
		1500	}
1320		1501
1321	errno = old_errno;	1502	errno = old_errno;
1322	}	1503	}
1323	}	1504	}
1324		1505
…		…
1327	static void	1508	static void
1328	pipecb (EV_P_ ev_io *iow, int revents)	1509	pipecb (EV_P_ ev_io *iow, int revents)
1329	{	1510	{
1330	int i;	1511	int i;
1331		1512
		1513	if (revents & EV_READ)
		1514	{
1332	#if EV_USE_EVENTFD	1515	#if EV_USE_EVENTFD
1333	if (evfd >= 0)	1516	if (evfd >= 0)
1334	{	1517	{
1335	uint64_t counter;	1518	uint64_t counter;
1336	read (evfd, &counter, sizeof (uint64_t));	1519	read (evfd, &counter, sizeof (uint64_t));
1337	}	1520	}
1338	else	1521	else
1339	#endif	1522	#endif
1340	{	1523	{
1341	char dummy;	1524	char dummy;
1342	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1525	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1343	read (evpipe [0], &dummy, 1);	1526	read (evpipe [0], &dummy, 1);
		1527	}
1344	}	1528	}
1345		1529
		1530	pipe_write_skipped = 0;
		1531
		1532	#if EV_SIGNAL_ENABLE
1346	if (sig_pending)	1533	if (sig_pending)
1347	{	1534	{
1348	sig_pending = 0;	1535	sig_pending = 0;
1349		1536
1350	for (i = EV_NSIG - 1; i--; )	1537	for (i = EV_NSIG - 1; i--; )
1351	if (expect_false (signals [i].pending))	1538	if (expect_false (signals [i].pending))
1352	ev_feed_signal_event (EV_A_ i + 1);	1539	ev_feed_signal_event (EV_A_ i + 1);
1353	}	1540	}
		1541	#endif
1354		1542
1355	#if EV_ASYNC_ENABLE	1543	#if EV_ASYNC_ENABLE
1356	if (async_pending)	1544	if (async_pending)
1357	{	1545	{
1358	async_pending = 0;	1546	async_pending = 0;
…		…
1367	#endif	1555	#endif
1368	}	1556	}
1369		1557
1370	/*****************************************************************************/	1558	/*****************************************************************************/
1371		1559
		1560	void
		1561	ev_feed_signal (int signum)
		1562	{
		1563	#if EV_MULTIPLICITY
		1564	EV_P = signals [signum - 1].loop;
		1565
		1566	if (!EV_A)
		1567	return;
		1568	#endif
		1569
		1570	if (!ev_active (&pipe_w))
		1571	return;
		1572
		1573	signals [signum - 1].pending = 1;
		1574	evpipe_write (EV_A_ &sig_pending);
		1575	}
		1576
1372	static void	1577	static void
1373	ev_sighandler (int signum)	1578	ev_sighandler (int signum)
1374	{	1579	{
1375	#if EV_MULTIPLICITY
1376	EV_P = signals [signum - 1].loop;
1377	#endif
1378
1379	#ifdef _WIN32	1580	#ifdef _WIN32
1380	signal (signum, ev_sighandler);	1581	signal (signum, ev_sighandler);
1381	#endif	1582	#endif
1382		1583
1383	signals [signum - 1].pending = 1;	1584	ev_feed_signal (signum);
1384	evpipe_write (EV_A_ &sig_pending);
1385	}	1585	}
1386		1586
1387	void noinline	1587	void noinline
1388	ev_feed_signal_event (EV_P_ int signum)	1588	ev_feed_signal_event (EV_P_ int signum)
1389	{	1589	{
…		…
1489		1689
1490	#endif	1690	#endif
1491		1691
1492	/*****************************************************************************/	1692	/*****************************************************************************/
1493		1693
		1694	#if EV_USE_IOCP
		1695	# include "ev_iocp.c"
		1696	#endif
1494	#if EV_USE_PORT	1697	#if EV_USE_PORT
1495	# include "ev_port.c"	1698	# include "ev_port.c"
1496	#endif	1699	#endif
1497	#if EV_USE_KQUEUE	1700	#if EV_USE_KQUEUE
1498	# include "ev_kqueue.c"	1701	# include "ev_kqueue.c"
…		…
1505	#endif	1708	#endif
1506	#if EV_USE_SELECT	1709	#if EV_USE_SELECT
1507	# include "ev_select.c"	1710	# include "ev_select.c"
1508	#endif	1711	#endif
1509		1712
1510	int	1713	int ecb_cold
1511	ev_version_major (void)	1714	ev_version_major (void)
1512	{	1715	{
1513	return EV_VERSION_MAJOR;	1716	return EV_VERSION_MAJOR;
1514	}	1717	}
1515		1718
1516	int	1719	int ecb_cold
1517	ev_version_minor (void)	1720	ev_version_minor (void)
1518	{	1721	{
1519	return EV_VERSION_MINOR;	1722	return EV_VERSION_MINOR;
1520	}	1723	}
1521		1724
1522	/* return true if we are running with elevated privileges and should ignore env variables */	1725	/* return true if we are running with elevated privileges and should ignore env variables */
1523	int inline_size	1726	int inline_size ecb_cold
1524	enable_secure (void)	1727	enable_secure (void)
1525	{	1728	{
1526	#ifdef _WIN32	1729	#ifdef _WIN32
1527	return 0;	1730	return 0;
1528	#else	1731	#else
1529	return getuid () != geteuid ()	1732	return getuid () != geteuid ()
1530	\|\| getgid () != getegid ();	1733	\|\| getgid () != getegid ();
1531	#endif	1734	#endif
1532	}	1735	}
1533		1736
1534	unsigned int	1737	unsigned int ecb_cold
1535	ev_supported_backends (void)	1738	ev_supported_backends (void)
1536	{	1739	{
1537	unsigned int flags = 0;	1740	unsigned int flags = 0;
1538		1741
1539	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;	1742	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
…		…
1543	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;	1746	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
1544		1747
1545	return flags;	1748	return flags;
1546	}	1749	}
1547		1750
1548	unsigned int	1751	unsigned int ecb_cold
1549	ev_recommended_backends (void)	1752	ev_recommended_backends (void)
1550	{	1753	{
1551	unsigned int flags = ev_supported_backends ();	1754	unsigned int flags = ev_supported_backends ();
1552		1755
1553	#ifndef __NetBSD__	1756	#ifndef __NetBSD__
…		…
1565	#endif	1768	#endif
1566		1769
1567	return flags;	1770	return flags;
1568	}	1771	}
1569		1772
1570	unsigned int	1773	unsigned int ecb_cold
1571	ev_embeddable_backends (void)	1774	ev_embeddable_backends (void)
1572	{	1775	{
1573	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;	1776	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
1574		1777
1575	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	1778	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
…		…
1620	ev_userdata (EV_P)	1823	ev_userdata (EV_P)
1621	{	1824	{
1622	return userdata;	1825	return userdata;
1623	}	1826	}
1624		1827
		1828	void
1625	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	1829	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1626	{	1830	{
1627	invoke_cb = invoke_pending_cb;	1831	invoke_cb = invoke_pending_cb;
1628	}	1832	}
1629		1833
		1834	void
1630	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))	1835	ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
1631	{	1836	{
1632	release_cb = release;	1837	release_cb = release;
1633	acquire_cb = acquire;	1838	acquire_cb = acquire;
1634	}	1839	}
1635	#endif	1840	#endif
1636		1841
1637	/* initialise a loop structure, must be zero-initialised */	1842	/* initialise a loop structure, must be zero-initialised */
1638	static void noinline	1843	static void noinline ecb_cold
1639	loop_init (EV_P_ unsigned int flags)	1844	loop_init (EV_P_ unsigned int flags)
1640	{	1845	{
1641	if (!backend)	1846	if (!backend)
1642	{	1847	{
		1848	origflags = flags;
		1849
1643	#if EV_USE_REALTIME	1850	#if EV_USE_REALTIME
1644	if (!have_realtime)	1851	if (!have_realtime)
1645	{	1852	{
1646	struct timespec ts;	1853	struct timespec ts;
1647		1854
…		…
1669	if (!(flags & EVFLAG_NOENV)	1876	if (!(flags & EVFLAG_NOENV)
1670	&& !enable_secure ()	1877	&& !enable_secure ()
1671	&& getenv ("LIBEV_FLAGS"))	1878	&& getenv ("LIBEV_FLAGS"))
1672	flags = atoi (getenv ("LIBEV_FLAGS"));	1879	flags = atoi (getenv ("LIBEV_FLAGS"));
1673		1880
1674	ev_rt_now = ev_time ();	1881	ev_rt_now = ev_time ();
1675	mn_now = get_clock ();	1882	mn_now = get_clock ();
1676	now_floor = mn_now;	1883	now_floor = mn_now;
1677	rtmn_diff = ev_rt_now - mn_now;	1884	rtmn_diff = ev_rt_now - mn_now;
1678	#if EV_FEATURE_API	1885	#if EV_FEATURE_API
1679	invoke_cb = ev_invoke_pending;	1886	invoke_cb = ev_invoke_pending;
1680	#endif	1887	#endif
1681		1888
1682	io_blocktime = 0.;	1889	io_blocktime = 0.;
1683	timeout_blocktime = 0.;	1890	timeout_blocktime = 0.;
1684	backend = 0;	1891	backend = 0;
1685	backend_fd = -1;	1892	backend_fd = -1;
1686	sig_pending = 0;	1893	sig_pending = 0;
1687	#if EV_ASYNC_ENABLE	1894	#if EV_ASYNC_ENABLE
1688	async_pending = 0;	1895	async_pending = 0;
1689	#endif	1896	#endif
		1897	pipe_write_skipped = 0;
		1898	pipe_write_wanted = 0;
1690	#if EV_USE_INOTIFY	1899	#if EV_USE_INOTIFY
1691	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	1900	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1692	#endif	1901	#endif
1693	#if EV_USE_SIGNALFD	1902	#if EV_USE_SIGNALFD
1694	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	1903	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1695	#endif	1904	#endif
1696		1905
1697	if (!(flags & 0x0000ffffU))	1906	if (!(flags & EVBACKEND_MASK))
1698	flags \|= ev_recommended_backends ();	1907	flags \|= ev_recommended_backends ();
1699		1908
		1909	#if EV_USE_IOCP
		1910	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		1911	#endif
1700	#if EV_USE_PORT	1912	#if EV_USE_PORT
1701	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	1913	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1702	#endif	1914	#endif
1703	#if EV_USE_KQUEUE	1915	#if EV_USE_KQUEUE
1704	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	1916	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1721	#endif	1933	#endif
1722	}	1934	}
1723	}	1935	}
1724		1936
1725	/* free up a loop structure */	1937	/* free up a loop structure */
1726	static void noinline	1938	void ecb_cold
1727	loop_destroy (EV_P)	1939	ev_loop_destroy (EV_P)
1728	{	1940	{
1729	int i;	1941	int i;
		1942
		1943	#if EV_MULTIPLICITY
		1944	/* mimic free (0) */
		1945	if (!EV_A)
		1946	return;
		1947	#endif
		1948
		1949	#if EV_CLEANUP_ENABLE
		1950	/* queue cleanup watchers (and execute them) */
		1951	if (expect_false (cleanupcnt))
		1952	{
		1953	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		1954	EV_INVOKE_PENDING;
		1955	}
		1956	#endif
		1957
		1958	#if EV_CHILD_ENABLE
		1959	if (ev_is_active (&childev))
		1960	{
		1961	ev_ref (EV_A); /* child watcher */
		1962	ev_signal_stop (EV_A_ &childev);
		1963	}
		1964	#endif
1730		1965
1731	if (ev_is_active (&pipe_w))	1966	if (ev_is_active (&pipe_w))
1732	{	1967	{
1733	/ev_ref (EV_A);/	1968	/ev_ref (EV_A);/
1734	/ev_io_stop (EV_A_ &pipe_w);/	1969	/ev_io_stop (EV_A_ &pipe_w);/
…		…
1756	#endif	1991	#endif
1757		1992
1758	if (backend_fd >= 0)	1993	if (backend_fd >= 0)
1759	close (backend_fd);	1994	close (backend_fd);
1760		1995
		1996	#if EV_USE_IOCP
		1997	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		1998	#endif
1761	#if EV_USE_PORT	1999	#if EV_USE_PORT
1762	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	2000	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1763	#endif	2001	#endif
1764	#if EV_USE_KQUEUE	2002	#if EV_USE_KQUEUE
1765	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	2003	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1792	array_free (periodic, EMPTY);	2030	array_free (periodic, EMPTY);
1793	#endif	2031	#endif
1794	#if EV_FORK_ENABLE	2032	#if EV_FORK_ENABLE
1795	array_free (fork, EMPTY);	2033	array_free (fork, EMPTY);
1796	#endif	2034	#endif
		2035	#if EV_CLEANUP_ENABLE
		2036	array_free (cleanup, EMPTY);
		2037	#endif
1797	array_free (prepare, EMPTY);	2038	array_free (prepare, EMPTY);
1798	array_free (check, EMPTY);	2039	array_free (check, EMPTY);
1799	#if EV_ASYNC_ENABLE	2040	#if EV_ASYNC_ENABLE
1800	array_free (async, EMPTY);	2041	array_free (async, EMPTY);
1801	#endif	2042	#endif
1802		2043
1803	backend = 0;	2044	backend = 0;
		2045
		2046	#if EV_MULTIPLICITY
		2047	if (ev_is_default_loop (EV_A))
		2048	#endif
		2049	ev_default_loop_ptr = 0;
		2050	#if EV_MULTIPLICITY
		2051	else
		2052	ev_free (EV_A);
		2053	#endif
1804	}	2054	}
1805		2055
1806	#if EV_USE_INOTIFY	2056	#if EV_USE_INOTIFY
1807	inline_size void infy_fork (EV_P);	2057	inline_size void infy_fork (EV_P);
1808	#endif	2058	#endif
…		…
1823	infy_fork (EV_A);	2073	infy_fork (EV_A);
1824	#endif	2074	#endif
1825		2075
1826	if (ev_is_active (&pipe_w))	2076	if (ev_is_active (&pipe_w))
1827	{	2077	{
1828	/* this "locks" the handlers against writing to the pipe */	2078	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1829	/* while we modify the fd vars */
1830	sig_pending = 1;
1831	#if EV_ASYNC_ENABLE
1832	async_pending = 1;
1833	#endif
1834		2079
1835	ev_ref (EV_A);	2080	ev_ref (EV_A);
1836	ev_io_stop (EV_A_ &pipe_w);	2081	ev_io_stop (EV_A_ &pipe_w);
1837		2082
1838	#if EV_USE_EVENTFD	2083	#if EV_USE_EVENTFD
…		…
1856	postfork = 0;	2101	postfork = 0;
1857	}	2102	}
1858		2103
1859	#if EV_MULTIPLICITY	2104	#if EV_MULTIPLICITY
1860		2105
1861	struct ev_loop *	2106	struct ev_loop * ecb_cold
1862	ev_loop_new (unsigned int flags)	2107	ev_loop_new (unsigned int flags)
1863	{	2108	{
1864	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2109	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1865		2110
1866	memset (EV_A, 0, sizeof (struct ev_loop));	2111	memset (EV_A, 0, sizeof (struct ev_loop));
1867	loop_init (EV_A_ flags);	2112	loop_init (EV_A_ flags);
1868		2113
1869	if (ev_backend (EV_A))	2114	if (ev_backend (EV_A))
1870	return EV_A;	2115	return EV_A;
1871		2116
		2117	ev_free (EV_A);
1872	return 0;	2118	return 0;
1873	}	2119	}
1874		2120
1875	void
1876	ev_loop_destroy (EV_P)
1877	{
1878	loop_destroy (EV_A);
1879	ev_free (loop);
1880	}
1881
1882	void
1883	ev_loop_fork (EV_P)
1884	{
1885	postfork = 1; /* must be in line with ev_default_fork */
1886	}
1887	#endif /* multiplicity */	2121	#endif /* multiplicity */
1888		2122
1889	#if EV_VERIFY	2123	#if EV_VERIFY
1890	static void noinline	2124	static void noinline ecb_cold
1891	verify_watcher (EV_P_ W w)	2125	verify_watcher (EV_P_ W w)
1892	{	2126	{
1893	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2127	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1894		2128
1895	if (w->pending)	2129	if (w->pending)
1896	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2130	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1897	}	2131	}
1898		2132
1899	static void noinline	2133	static void noinline ecb_cold
1900	verify_heap (EV_P_ ANHE *heap, int N)	2134	verify_heap (EV_P_ ANHE *heap, int N)
1901	{	2135	{
1902	int i;	2136	int i;
1903		2137
1904	for (i = HEAP0; i < N + HEAP0; ++i)	2138	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
1909		2143
1910	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2144	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1911	}	2145	}
1912	}	2146	}
1913		2147
1914	static void noinline	2148	static void noinline ecb_cold
1915	array_verify (EV_P_ W *ws, int cnt)	2149	array_verify (EV_P_ W *ws, int cnt)
1916	{	2150	{
1917	while (cnt--)	2151	while (cnt--)
1918	{	2152	{
1919	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2153	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
1921	}	2155	}
1922	}	2156	}
1923	#endif	2157	#endif
1924		2158
1925	#if EV_FEATURE_API	2159	#if EV_FEATURE_API
1926	void	2160	void ecb_cold
1927	ev_verify (EV_P)	2161	ev_verify (EV_P)
1928	{	2162	{
1929	#if EV_VERIFY	2163	#if EV_VERIFY
1930	int i;	2164	int i;
1931	WL w;	2165	WL w;
…		…
1966	#if EV_FORK_ENABLE	2200	#if EV_FORK_ENABLE
1967	assert (forkmax >= forkcnt);	2201	assert (forkmax >= forkcnt);
1968	array_verify (EV_A_ (W *)forks, forkcnt);	2202	array_verify (EV_A_ (W *)forks, forkcnt);
1969	#endif	2203	#endif
1970		2204
		2205	#if EV_CLEANUP_ENABLE
		2206	assert (cleanupmax >= cleanupcnt);
		2207	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2208	#endif
		2209
1971	#if EV_ASYNC_ENABLE	2210	#if EV_ASYNC_ENABLE
1972	assert (asyncmax >= asynccnt);	2211	assert (asyncmax >= asynccnt);
1973	array_verify (EV_A_ (W *)asyncs, asynccnt);	2212	array_verify (EV_A_ (W *)asyncs, asynccnt);
1974	#endif	2213	#endif
1975		2214
…		…
1992	#endif	2231	#endif
1993	}	2232	}
1994	#endif	2233	#endif
1995		2234
1996	#if EV_MULTIPLICITY	2235	#if EV_MULTIPLICITY
1997	struct ev_loop *	2236	struct ev_loop * ecb_cold
1998	ev_default_loop_init (unsigned int flags)
1999	#else	2237	#else
2000	int	2238	int
		2239	#endif
2001	ev_default_loop (unsigned int flags)	2240	ev_default_loop (unsigned int flags)
2002	#endif
2003	{	2241	{
2004	if (!ev_default_loop_ptr)	2242	if (!ev_default_loop_ptr)
2005	{	2243	{
2006	#if EV_MULTIPLICITY	2244	#if EV_MULTIPLICITY
2007	EV_P = ev_default_loop_ptr = &default_loop_struct;	2245	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2026		2264
2027	return ev_default_loop_ptr;	2265	return ev_default_loop_ptr;
2028	}	2266	}
2029		2267
2030	void	2268	void
2031	ev_default_destroy (void)	2269	ev_loop_fork (EV_P)
2032	{	2270	{
2033	#if EV_MULTIPLICITY
2034	EV_P = ev_default_loop_ptr;
2035	#endif
2036
2037	ev_default_loop_ptr = 0;
2038
2039	#if EV_CHILD_ENABLE
2040	ev_ref (EV_A); /* child watcher */
2041	ev_signal_stop (EV_A_ &childev);
2042	#endif
2043
2044	loop_destroy (EV_A);
2045	}
2046
2047	void
2048	ev_default_fork (void)
2049	{
2050	#if EV_MULTIPLICITY
2051	EV_P = ev_default_loop_ptr;
2052	#endif
2053
2054	postfork = 1; /* must be in line with ev_loop_fork */	2271	postfork = 1; /* must be in line with ev_default_fork */
2055	}	2272	}
2056		2273
2057	/*****************************************************************************/	2274	/*****************************************************************************/
2058		2275
2059	void	2276	void
…		…
2081		2298
2082	for (pri = NUMPRI; pri--; )	2299	for (pri = NUMPRI; pri--; )
2083	while (pendingcnt [pri])	2300	while (pendingcnt [pri])
2084	{	2301	{
2085	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2302	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2086
2087	/assert (("libev: non-pending watcher on pending list", p->w->pending));/
2088	/* ^ this is no longer true, as pending_w could be here */
2089		2303
2090	p->w->pending = 0;	2304	p->w->pending = 0;
2091	EV_CB_INVOKE (p->w, p->events);	2305	EV_CB_INVOKE (p->w, p->events);
2092	EV_FREQUENT_CHECK;	2306	EV_FREQUENT_CHECK;
2093	}	2307	}
…		…
2155	feed_reverse_done (EV_A_ EV_TIMER);	2369	feed_reverse_done (EV_A_ EV_TIMER);
2156	}	2370	}
2157	}	2371	}
2158		2372
2159	#if EV_PERIODIC_ENABLE	2373	#if EV_PERIODIC_ENABLE
		2374
		2375	static void noinline
		2376	periodic_recalc (EV_P_ ev_periodic *w)
		2377	{
		2378	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
		2379	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
		2380
		2381	/* the above almost always errs on the low side */
		2382	while (at <= ev_rt_now)
		2383	{
		2384	ev_tstamp nat = at + w->interval;
		2385
		2386	/* when resolution fails us, we use ev_rt_now */
		2387	if (expect_false (nat == at))
		2388	{
		2389	at = ev_rt_now;
		2390	break;
		2391	}
		2392
		2393	at = nat;
		2394	}
		2395
		2396	ev_at (w) = at;
		2397	}
		2398
2160	/* make periodics pending */	2399	/* make periodics pending */
2161	inline_size void	2400	inline_size void
2162	periodics_reify (EV_P)	2401	periodics_reify (EV_P)
2163	{	2402	{
2164	EV_FREQUENT_CHECK;	2403	EV_FREQUENT_CHECK;
…		…
2183	ANHE_at_cache (periodics [HEAP0]);	2422	ANHE_at_cache (periodics [HEAP0]);
2184	downheap (periodics, periodiccnt, HEAP0);	2423	downheap (periodics, periodiccnt, HEAP0);
2185	}	2424	}
2186	else if (w->interval)	2425	else if (w->interval)
2187	{	2426	{
2188	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2427	periodic_recalc (EV_A_ w);
2189	/* if next trigger time is not sufficiently in the future, put it there */
2190	/* this might happen because of floating point inexactness */
2191	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2192	{
2193	ev_at (w) += w->interval;
2194
2195	/* if interval is unreasonably low we might still have a time in the past */
2196	/* so correct this. this will make the periodic very inexact, but the user */
2197	/* has effectively asked to get triggered more often than possible */
2198	if (ev_at (w) < ev_rt_now)
2199	ev_at (w) = ev_rt_now;
2200	}
2201
2202	ANHE_at_cache (periodics [HEAP0]);	2428	ANHE_at_cache (periodics [HEAP0]);
2203	downheap (periodics, periodiccnt, HEAP0);	2429	downheap (periodics, periodiccnt, HEAP0);
2204	}	2430	}
2205	else	2431	else
2206	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2432	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2214	}	2440	}
2215	}	2441	}
2216		2442
2217	/* simply recalculate all periodics */	2443	/* simply recalculate all periodics */
2218	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2444	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2219	static void noinline	2445	static void noinline ecb_cold
2220	periodics_reschedule (EV_P)	2446	periodics_reschedule (EV_P)
2221	{	2447	{
2222	int i;	2448	int i;
2223		2449
2224	/* adjust periodics after time jump */	2450	/* adjust periodics after time jump */
…		…
2227	ev_periodic w = (ev_periodic )ANHE_w (periodics [i]);	2453	ev_periodic w = (ev_periodic )ANHE_w (periodics [i]);
2228		2454
2229	if (w->reschedule_cb)	2455	if (w->reschedule_cb)
2230	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2456	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2231	else if (w->interval)	2457	else if (w->interval)
2232	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2458	periodic_recalc (EV_A_ w);
2233		2459
2234	ANHE_at_cache (periodics [i]);	2460	ANHE_at_cache (periodics [i]);
2235	}	2461	}
2236		2462
2237	reheap (periodics, periodiccnt);	2463	reheap (periodics, periodiccnt);
2238	}	2464	}
2239	#endif	2465	#endif
2240		2466
2241	/* adjust all timers by a given offset */	2467	/* adjust all timers by a given offset */
2242	static void noinline	2468	static void noinline ecb_cold
2243	timers_reschedule (EV_P_ ev_tstamp adjust)	2469	timers_reschedule (EV_P_ ev_tstamp adjust)
2244	{	2470	{
2245	int i;	2471	int i;
2246		2472
2247	for (i = 0; i < timercnt; ++i)	2473	for (i = 0; i < timercnt; ++i)
…		…
2284	* doesn't hurt either as we only do this on time-jumps or	2510	* doesn't hurt either as we only do this on time-jumps or
2285	* in the unlikely event of having been preempted here.	2511	* in the unlikely event of having been preempted here.
2286	*/	2512	*/
2287	for (i = 4; --i; )	2513	for (i = 4; --i; )
2288	{	2514	{
		2515	ev_tstamp diff;
2289	rtmn_diff = ev_rt_now - mn_now;	2516	rtmn_diff = ev_rt_now - mn_now;
2290		2517
		2518	diff = odiff - rtmn_diff;
		2519
2291	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2520	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2292	return; /* all is well */	2521	return; /* all is well */
2293		2522
2294	ev_rt_now = ev_time ();	2523	ev_rt_now = ev_time ();
2295	mn_now = get_clock ();	2524	mn_now = get_clock ();
2296	now_floor = mn_now;	2525	now_floor = mn_now;
…		…
2386	ev_tstamp prev_mn_now = mn_now;	2615	ev_tstamp prev_mn_now = mn_now;
2387		2616
2388	/* update time to cancel out callback processing overhead */	2617	/* update time to cancel out callback processing overhead */
2389	time_update (EV_A_ 1e100);	2618	time_update (EV_A_ 1e100);
2390		2619
		2620	/* from now on, we want a pipe-wake-up */
		2621	pipe_write_wanted = 1;
		2622
		2623	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		2624
2391	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt)))	2625	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt \|\| pipe_write_skipped)))
2392	{	2626	{
2393	waittime = MAX_BLOCKTIME;	2627	waittime = MAX_BLOCKTIME;
2394		2628
2395	if (timercnt)	2629	if (timercnt)
2396	{	2630	{
2397	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2631	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2398	if (waittime > to) waittime = to;	2632	if (waittime > to) waittime = to;
2399	}	2633	}
2400		2634
2401	#if EV_PERIODIC_ENABLE	2635	#if EV_PERIODIC_ENABLE
2402	if (periodiccnt)	2636	if (periodiccnt)
2403	{	2637	{
2404	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2638	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2405	if (waittime > to) waittime = to;	2639	if (waittime > to) waittime = to;
2406	}	2640	}
2407	#endif	2641	#endif
2408		2642
2409	/* don't let timeouts decrease the waittime below timeout_blocktime */	2643	/* don't let timeouts decrease the waittime below timeout_blocktime */
2410	if (expect_false (waittime < timeout_blocktime))	2644	if (expect_false (waittime < timeout_blocktime))
2411	waittime = timeout_blocktime;	2645	waittime = timeout_blocktime;
		2646
		2647	/* at this point, we NEED to wait, so we have to ensure */
		2648	/* to pass a minimum nonzero value to the backend */
		2649	if (expect_false (waittime < backend_mintime))
		2650	waittime = backend_mintime;
2412		2651
2413	/* extra check because io_blocktime is commonly 0 */	2652	/* extra check because io_blocktime is commonly 0 */
2414	if (expect_false (io_blocktime))	2653	if (expect_false (io_blocktime))
2415	{	2654	{
2416	sleeptime = io_blocktime - (mn_now - prev_mn_now);	2655	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2417		2656
2418	if (sleeptime > waittime - backend_fudge)	2657	if (sleeptime > waittime - backend_mintime)
2419	sleeptime = waittime - backend_fudge;	2658	sleeptime = waittime - backend_mintime;
2420		2659
2421	if (expect_true (sleeptime > 0.))	2660	if (expect_true (sleeptime > 0.))
2422	{	2661	{
2423	ev_sleep (sleeptime);	2662	ev_sleep (sleeptime);
2424	waittime -= sleeptime;	2663	waittime -= sleeptime;
…		…
2430	++loop_count;	2669	++loop_count;
2431	#endif	2670	#endif
2432	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	2671	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2433	backend_poll (EV_A_ waittime);	2672	backend_poll (EV_A_ waittime);
2434	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	2673	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
		2674
		2675	pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
		2676
		2677	if (pipe_write_skipped)
		2678	{
		2679	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		2680	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		2681	}
		2682
2435		2683
2436	/* update ev_rt_now, do magic */	2684	/* update ev_rt_now, do magic */
2437	time_update (EV_A_ waittime + sleeptime);	2685	time_update (EV_A_ waittime + sleeptime);
2438	}	2686	}
2439		2687
…		…
2729	if (w->reschedule_cb)	2977	if (w->reschedule_cb)
2730	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2978	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2731	else if (w->interval)	2979	else if (w->interval)
2732	{	2980	{
2733	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	2981	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2734	/* this formula differs from the one in periodic_reify because we do not always round up */	2982	periodic_recalc (EV_A_ w);
2735	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2736	}	2983	}
2737	else	2984	else
2738	ev_at (w) = w->offset;	2985	ev_at (w) = w->offset;
2739		2986
2740	EV_FREQUENT_CHECK;	2987	EV_FREQUENT_CHECK;
…		…
2861	sa.sa_handler = ev_sighandler;	3108	sa.sa_handler = ev_sighandler;
2862	sigfillset (&sa.sa_mask);	3109	sigfillset (&sa.sa_mask);
2863	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	3110	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2864	sigaction (w->signum, &sa, 0);	3111	sigaction (w->signum, &sa, 0);
2865		3112
		3113	if (origflags & EVFLAG_NOSIGMASK)
		3114	{
2866	sigemptyset (&sa.sa_mask);	3115	sigemptyset (&sa.sa_mask);
2867	sigaddset (&sa.sa_mask, w->signum);	3116	sigaddset (&sa.sa_mask, w->signum);
2868	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	3117	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		3118	}
2869	#endif	3119	#endif
2870	}	3120	}
2871		3121
2872	EV_FREQUENT_CHECK;	3122	EV_FREQUENT_CHECK;
2873	}	3123	}
…		…
3014	if (!pend \|\| pend == path)	3264	if (!pend \|\| pend == path)
3015	break;	3265	break;
3016		3266
3017	*pend = 0;	3267	*pend = 0;
3018	w->wd = inotify_add_watch (fs_fd, path, mask);	3268	w->wd = inotify_add_watch (fs_fd, path, mask);
3019	}	3269	}
3020	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	3270	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
3021	}	3271	}
3022	}	3272	}
3023		3273
3024	if (w->wd >= 0)	3274	if (w->wd >= 0)
…		…
3091	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3341	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3092	ofs += sizeof (struct inotify_event) + ev->len;	3342	ofs += sizeof (struct inotify_event) + ev->len;
3093	}	3343	}
3094	}	3344	}
3095		3345
3096	inline_size void	3346	inline_size void ecb_cold
3097	ev_check_2625 (EV_P)	3347	ev_check_2625 (EV_P)
3098	{	3348	{
3099	/* kernels < 2.6.25 are borked	3349	/* kernels < 2.6.25 are borked
3100	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3350	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3101	*/	3351	*/
…		…
3565		3815
3566	EV_FREQUENT_CHECK;	3816	EV_FREQUENT_CHECK;
3567	}	3817	}
3568	#endif	3818	#endif
3569		3819
		3820	#if EV_CLEANUP_ENABLE
		3821	void
		3822	ev_cleanup_start (EV_P_ ev_cleanup *w)
		3823	{
		3824	if (expect_false (ev_is_active (w)))
		3825	return;
		3826
		3827	EV_FREQUENT_CHECK;
		3828
		3829	ev_start (EV_A_ (W)w, ++cleanupcnt);
		3830	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		3831	cleanups [cleanupcnt - 1] = w;
		3832
		3833	/* cleanup watchers should never keep a refcount on the loop */
		3834	ev_unref (EV_A);
		3835	EV_FREQUENT_CHECK;
		3836	}
		3837
		3838	void
		3839	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		3840	{
		3841	clear_pending (EV_A_ (W)w);
		3842	if (expect_false (!ev_is_active (w)))
		3843	return;
		3844
		3845	EV_FREQUENT_CHECK;
		3846	ev_ref (EV_A);
		3847
		3848	{
		3849	int active = ev_active (w);
		3850
		3851	cleanups [active - 1] = cleanups [--cleanupcnt];
		3852	ev_active (cleanups [active - 1]) = active;
		3853	}
		3854
		3855	ev_stop (EV_A_ (W)w);
		3856
		3857	EV_FREQUENT_CHECK;
		3858	}
		3859	#endif
		3860
3570	#if EV_ASYNC_ENABLE	3861	#if EV_ASYNC_ENABLE
3571	void	3862	void
3572	ev_async_start (EV_P_ ev_async *w)	3863	ev_async_start (EV_P_ ev_async *w)
3573	{	3864	{
3574	if (expect_false (ev_is_active (w)))	3865	if (expect_false (ev_is_active (w)))
…		…
3685	}	3976	}
3686		3977
3687	/*****************************************************************************/	3978	/*****************************************************************************/
3688		3979
3689	#if EV_WALK_ENABLE	3980	#if EV_WALK_ENABLE
3690	void	3981	void ecb_cold
3691	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))	3982	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))
3692	{	3983	{
3693	int i, j;	3984	int i, j;
3694	ev_watcher_list wl, wn;	3985	ev_watcher_list wl, wn;
3695		3986
…		…
3739	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4030	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3740	#endif	4031	#endif
3741		4032
3742	#if EV_IDLE_ENABLE	4033	#if EV_IDLE_ENABLE
3743	if (types & EV_IDLE)	4034	if (types & EV_IDLE)
3744	for (j = NUMPRI; i--; )	4035	for (j = NUMPRI; j--; )
3745	for (i = idlecnt [j]; i--; )	4036	for (i = idlecnt [j]; i--; )
3746	cb (EV_A_ EV_IDLE, idles [j][i]);	4037	cb (EV_A_ EV_IDLE, idles [j][i]);
3747	#endif	4038	#endif
3748		4039
3749	#if EV_FORK_ENABLE	4040	#if EV_FORK_ENABLE

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Comparing libev/ev.c (file contents): Revision 1.356 by root, Fri Oct 22 11:21:52 2010 UTC vs. Revision 1.390 by root, Thu Aug 4 11:58:02 2011 UTC

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Comparing libev/ev.c (file contents):
Revision 1.356 by root, Fri Oct 22 11:21:52 2010 UTC vs.
Revision 1.390 by root, Thu Aug 4 11:58:02 2011 UTC