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Comparing libev/ev.c (file contents):
Revision 1.345 by sf-exg, Sat Jul 31 22:33:26 2010 UTC vs.
Revision 1.396 by root, Wed Aug 24 16:13:17 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	446	#endif
451	#endif
452
453		447
454	/**/	448	/**/
455		449
456	#if EV_VERIFY >= 3	450	#if EV_VERIFY >= 3
457	# define EV_FREQUENT_CHECK ev_verify (EV_A)	451	# define EV_FREQUENT_CHECK ev_verify (EV_A)
458	#else	452	#else
459	# define EV_FREQUENT_CHECK do { } while (0)	453	# define EV_FREQUENT_CHECK do { } while (0)
460	#endif	454	#endif
461		455
462	/*	456	/*
463	* This is used to avoid floating point rounding problems.	457	* This is used to work around floating point rounding problems.
464	* It is added to ev_rt_now when scheduling periodics
465	* to ensure progress, time-wise, even when rounding
466	* errors are against us.
467	* This value is good at least till the year 4000.	458	* This value is good at least till the year 4000.
468	* Better solutions welcome.
469	*/	459	*/
470	#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 */
471		462
472	#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) */
473	#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) */
474		465
		466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } 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)
		468
		469	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
		470	/* ECB.H BEGIN */
		471	/*
		472	* libecb - http://software.schmorp.de/pkg/libecb
		473	*
		474	* Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>
		475	* Copyright (©) 2011 Emanuele Giaquinta
		476	* All rights reserved.
		477	*
		478	* Redistribution and use in source and binary forms, with or without modifica-
		479	* tion, are permitted provided that the following conditions are met:
		480	*
		481	* 1. Redistributions of source code must retain the above copyright notice,
		482	* this list of conditions and the following disclaimer.
		483	*
		484	* 2. Redistributions in binary form must reproduce the above copyright
		485	* notice, this list of conditions and the following disclaimer in the
		486	* documentation and/or other materials provided with the distribution.
		487	*
		488	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		489	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		490	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		491	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		492	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		493	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		494	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		495	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		496	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		497	* OF THE POSSIBILITY OF SUCH DAMAGE.
		498	*/
		499
		500	#ifndef ECB_H
		501	#define ECB_H
		502
		503	#ifdef _WIN32
		504	typedef signed char int8_t;
		505	typedef unsigned char uint8_t;
		506	typedef signed short int16_t;
		507	typedef unsigned short uint16_t;
		508	typedef signed int int32_t;
		509	typedef unsigned int uint32_t;
475	#if __GNUC__ >= 4	510	#if __GNUC__
476	# define expect(expr,value) __builtin_expect ((expr),(value))	511	typedef signed long long int64_t;
477	# define noinline __attribute__ ((noinline))	512	typedef unsigned long long uint64_t;
		513	#else /* _MSC_VER || __BORLANDC__ */
		514	typedef signed __int64 int64_t;
		515	typedef unsigned __int64 uint64_t;
		516	#endif
478	#else	517	#else
479	# define expect(expr,value) (expr)	518	#include <inttypes.h>
480	# define noinline
481	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
482	# define inline
483	# endif	519	#endif
		520
		521	/* many compilers define _GNUC_ to some versions but then only implement
		522	* what their idiot authors think are the "more important" extensions,
		523	* causing enormous grief in return for some better fake benchmark numbers.
		524	* or so.
		525	* we try to detect these and simply assume they are not gcc - if they have
		526	* an issue with that they should have done it right in the first place.
		527	*/
		528	#ifndef ECB_GCC_VERSION
		529	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
		530	#define ECB_GCC_VERSION(major,minor) 0
		531	#else
		532	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484	#endif	533	#endif
		534	#endif
485		535
		536	/*****************************************************************************/
		537
		538	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		539	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		540
		541	#if ECB_NO_THREADS || ECB_NO_SMP
		542	#define ECB_MEMORY_FENCE do { } while (0)
		543	#endif
		544
		545	#ifndef ECB_MEMORY_FENCE
		546	#if ECB_GCC_VERSION(2,5)
		547	#if __i386__
		548	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		549	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
		550	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		551	#elif __amd64
		552	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		553	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		554	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		555	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		556	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		557	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
		558	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
		559	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		560	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
		561	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
		562	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		563	#endif
		564	#endif
		565	#endif
		566
		567	#ifndef ECB_MEMORY_FENCE
		568	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER)
		569	#define ECB_MEMORY_FENCE __sync_synchronize ()
		570	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
		571	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
		572	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		573	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		574	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		575	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		576	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		577	#elif defined(_WIN32)
		578	#include <WinNT.h>
		579	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		580	#endif
		581	#endif
		582
		583	#ifndef ECB_MEMORY_FENCE
		584	#if !ECB_AVOID_PTHREADS
		585	/*
		586	* if you get undefined symbol references to pthread_mutex_lock,
		587	* or failure to find pthread.h, then you should implement
		588	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		589	* OR provide pthread.h and link against the posix thread library
		590	* of your system.
		591	*/
		592	#include <pthread.h>
		593	#define ECB_NEEDS_PTHREADS 1
		594	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		595
		596	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		597	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		598	#endif
		599	#endif
		600
		601	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
		602	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		603	#endif
		604
		605	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
		606	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		607	#endif
		608
		609	/*****************************************************************************/
		610
		611	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		612
		613	#if __cplusplus
		614	#define ecb_inline static inline
		615	#elif ECB_GCC_VERSION(2,5)
		616	#define ecb_inline static __inline__
		617	#elif ECB_C99
		618	#define ecb_inline static inline
		619	#else
		620	#define ecb_inline static
		621	#endif
		622
		623	#if ECB_GCC_VERSION(3,3)
		624	#define ecb_restrict __restrict__
		625	#elif ECB_C99
		626	#define ecb_restrict restrict
		627	#else
		628	#define ecb_restrict
		629	#endif
		630
		631	typedef int ecb_bool;
		632
		633	#define ECB_CONCAT_(a, b) a ## b
		634	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		635	#define ECB_STRINGIFY_(a) # a
		636	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		637
		638	#define ecb_function_ ecb_inline
		639
		640	#if ECB_GCC_VERSION(3,1)
		641	#define ecb_attribute(attrlist) __attribute__(attrlist)
		642	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		643	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		644	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		645	#else
		646	#define ecb_attribute(attrlist)
		647	#define ecb_is_constant(expr) 0
		648	#define ecb_expect(expr,value) (expr)
		649	#define ecb_prefetch(addr,rw,locality)
		650	#endif
		651
		652	/* no emulation for ecb_decltype */
		653	#if ECB_GCC_VERSION(4,5)
		654	#define ecb_decltype(x) __decltype(x)
		655	#elif ECB_GCC_VERSION(3,0)
		656	#define ecb_decltype(x) __typeof(x)
		657	#endif
		658
		659	#define ecb_noinline ecb_attribute ((__noinline__))
		660	#define ecb_noreturn ecb_attribute ((__noreturn__))
		661	#define ecb_unused ecb_attribute ((__unused__))
		662	#define ecb_const ecb_attribute ((__const__))
		663	#define ecb_pure ecb_attribute ((__pure__))
		664
		665	#if ECB_GCC_VERSION(4,3)
		666	#define ecb_artificial ecb_attribute ((__artificial__))
		667	#define ecb_hot ecb_attribute ((__hot__))
		668	#define ecb_cold ecb_attribute ((__cold__))
		669	#else
		670	#define ecb_artificial
		671	#define ecb_hot
		672	#define ecb_cold
		673	#endif
		674
		675	/* put around conditional expressions if you are very sure that the */
		676	/* expression is mostly true or mostly false. note that these return */
		677	/* booleans, not the expression. */
486	#define expect_false(expr) expect ((expr) != 0, 0)	678	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
487	#define expect_true(expr) expect ((expr) != 0, 1)	679	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		680	/* for compatibility to the rest of the world */
		681	#define ecb_likely(expr) ecb_expect_true (expr)
		682	#define ecb_unlikely(expr) ecb_expect_false (expr)
		683
		684	/* count trailing zero bits and count # of one bits */
		685	#if ECB_GCC_VERSION(3,4)
		686	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		687	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		688	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		689	#define ecb_ctz32(x) __builtin_ctz (x)
		690	#define ecb_ctz64(x) __builtin_ctzll (x)
		691	#define ecb_popcount32(x) __builtin_popcount (x)
		692	/* no popcountll */
		693	#else
		694	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		695	ecb_function_ int
		696	ecb_ctz32 (uint32_t x)
		697	{
		698	int r = 0;
		699
		700	x &= ~x + 1; /* this isolates the lowest bit */
		701
		702	#if ECB_branchless_on_i386
		703	r += !!(x & 0xaaaaaaaa) << 0;
		704	r += !!(x & 0xcccccccc) << 1;
		705	r += !!(x & 0xf0f0f0f0) << 2;
		706	r += !!(x & 0xff00ff00) << 3;
		707	r += !!(x & 0xffff0000) << 4;
		708	#else
		709	if (x & 0xaaaaaaaa) r += 1;
		710	if (x & 0xcccccccc) r += 2;
		711	if (x & 0xf0f0f0f0) r += 4;
		712	if (x & 0xff00ff00) r += 8;
		713	if (x & 0xffff0000) r += 16;
		714	#endif
		715
		716	return r;
		717	}
		718
		719	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		720	ecb_function_ int
		721	ecb_ctz64 (uint64_t x)
		722	{
		723	int shift = x & 0xffffffffU ? 0 : 32;
		724	return ecb_ctz32 (x >> shift) + shift;
		725	}
		726
		727	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		728	ecb_function_ int
		729	ecb_popcount32 (uint32_t x)
		730	{
		731	x -= (x >> 1) & 0x55555555;
		732	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		733	x = ((x >> 4) + x) & 0x0f0f0f0f;
		734	x *= 0x01010101;
		735
		736	return x >> 24;
		737	}
		738
		739	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		740	ecb_function_ int ecb_ld32 (uint32_t x)
		741	{
		742	int r = 0;
		743
		744	if (x >> 16) { x >>= 16; r += 16; }
		745	if (x >> 8) { x >>= 8; r += 8; }
		746	if (x >> 4) { x >>= 4; r += 4; }
		747	if (x >> 2) { x >>= 2; r += 2; }
		748	if (x >> 1) { r += 1; }
		749
		750	return r;
		751	}
		752
		753	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		754	ecb_function_ int ecb_ld64 (uint64_t x)
		755	{
		756	int r = 0;
		757
		758	if (x >> 32) { x >>= 32; r += 32; }
		759
		760	return r + ecb_ld32 (x);
		761	}
		762	#endif
		763
		764	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		765	/* so for this version we are lazy */
		766	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		767	ecb_function_ int
		768	ecb_popcount64 (uint64_t x)
		769	{
		770	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		771	}
		772
		773	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		774	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		775	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		776	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		777	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		778	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		779	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		780	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		781
		782	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		783	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		784	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		785	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		786	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		787	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		788	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		789	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		790
		791	#if ECB_GCC_VERSION(4,3)
		792	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		793	#define ecb_bswap32(x) __builtin_bswap32 (x)
		794	#define ecb_bswap64(x) __builtin_bswap64 (x)
		795	#else
		796	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		797	ecb_function_ uint16_t
		798	ecb_bswap16 (uint16_t x)
		799	{
		800	return ecb_rotl16 (x, 8);
		801	}
		802
		803	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		804	ecb_function_ uint32_t
		805	ecb_bswap32 (uint32_t x)
		806	{
		807	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		808	}
		809
		810	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		811	ecb_function_ uint64_t
		812	ecb_bswap64 (uint64_t x)
		813	{
		814	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		815	}
		816	#endif
		817
		818	#if ECB_GCC_VERSION(4,5)
		819	#define ecb_unreachable() __builtin_unreachable ()
		820	#else
		821	/* this seems to work fine, but gcc always emits a warning for it :/ */
		822	ecb_function_ void ecb_unreachable (void) ecb_noreturn;
		823	ecb_function_ void ecb_unreachable (void) { }
		824	#endif
		825
		826	/* try to tell the compiler that some condition is definitely true */
		827	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		828
		829	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
		830	ecb_function_ unsigned char
		831	ecb_byteorder_helper (void)
		832	{
		833	const uint32_t u = 0x11223344;
		834	return *(unsigned char *)&u;
		835	}
		836
		837	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
		838	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		839	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
		840	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		841
		842	#if ECB_GCC_VERSION(3,0) || ECB_C99
		843	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		844	#else
		845	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		846	#endif
		847
		848	#if ecb_cplusplus_does_not_suck
		849	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		850	template<typename T, int N>
		851	static inline int ecb_array_length (const T (&arr)[N])
		852	{
		853	return N;
		854	}
		855	#else
		856	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		857	#endif
		858
		859	#endif
		860
		861	/* ECB.H END */
		862
		863	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		864	/* if your architetcure doesn't need memory fences, e.g. because it is
		865	* single-cpu/core, or if you use libev in a project that doesn't use libev
		866	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		867	* libev, in which casess the memory fences become nops.
		868	* alternatively, you can remove this #error and link against libpthread,
		869	* which will then provide the memory fences.
		870	*/
		871	# error "memory fences not defined for your architecture, please report"
		872	#endif
		873
		874	#ifndef ECB_MEMORY_FENCE
		875	# define ECB_MEMORY_FENCE do { } while (0)
		876	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		877	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		878	#endif
		879
		880	#define expect_false(cond) ecb_expect_false (cond)
		881	#define expect_true(cond) ecb_expect_true (cond)
		882	#define noinline ecb_noinline
		883
488	#define inline_size static inline	884	#define inline_size ecb_inline
489		885
490	#if EV_FEATURE_CODE	886	#if EV_FEATURE_CODE
491	# define inline_speed static inline	887	# define inline_speed ecb_inline
492	#else	888	#else
493	# define inline_speed static noinline	889	# define inline_speed static noinline
494	#endif	890	#endif
495		891
496	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	892	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
535	# include "ev_win32.c"	931	# include "ev_win32.c"
536	#endif	932	#endif
537		933
538	/*****************************************************************************/	934	/*****************************************************************************/
539		935
		936	/* define a suitable floor function (only used by periodics atm) */
		937
		938	#if EV_USE_FLOOR
		939	# include <math.h>
		940	# define ev_floor(v) floor (v)
		941	#else
		942
		943	#include <float.h>
		944
		945	/* a floor() replacement function, should be independent of ev_tstamp type */
		946	static ev_tstamp noinline
		947	ev_floor (ev_tstamp v)
		948	{
		949	/* the choice of shift factor is not terribly important */
		950	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
		951	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
		952	#else
		953	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
		954	#endif
		955
		956	/* argument too large for an unsigned long? */
		957	if (expect_false (v >= shift))
		958	{
		959	ev_tstamp f;
		960
		961	if (v == v - 1.)
		962	return v; /* very large number */
		963
		964	f = shift * ev_floor (v * (1. / shift));
		965	return f + ev_floor (v - f);
		966	}
		967
		968	/* special treatment for negative args? */
		969	if (expect_false (v < 0.))
		970	{
		971	ev_tstamp f = -ev_floor (-v);
		972
		973	return f - (f == v ? 0 : 1);
		974	}
		975
		976	/* fits into an unsigned long */
		977	return (unsigned long)v;
		978	}
		979
		980	#endif
		981
		982	/*****************************************************************************/
		983
		984	#ifdef __linux
		985	# include <sys/utsname.h>
		986	#endif
		987
		988	static unsigned int noinline ecb_cold
		989	ev_linux_version (void)
		990	{
		991	#ifdef __linux
		992	unsigned int v = 0;
		993	struct utsname buf;
		994	int i;
		995	char *p = buf.release;
		996
		997	if (uname (&buf))
		998	return 0;
		999
		1000	for (i = 3+1; --i; )
		1001	{
		1002	unsigned int c = 0;
		1003
		1004	for (;;)
		1005	{
		1006	if (*p >= '0' && *p <= '9')
		1007	c = c * 10 + *p++ - '0';
		1008	else
		1009	{
		1010	p += *p == '.';
		1011	break;
		1012	}
		1013	}
		1014
		1015	v = (v << 8) | c;
		1016	}
		1017
		1018	return v;
		1019	#else
		1020	return 0;
		1021	#endif
		1022	}
		1023
		1024	/*****************************************************************************/
		1025
540	#if EV_AVOID_STDIO	1026	#if EV_AVOID_STDIO
541	static void noinline	1027	static void noinline ecb_cold
542	ev_printerr (const char *msg)	1028	ev_printerr (const char *msg)
543	{	1029	{
544	write (STDERR_FILENO, msg, strlen (msg));	1030	write (STDERR_FILENO, msg, strlen (msg));
545	}	1031	}
546	#endif	1032	#endif
547		1033
548	static void (*syserr_cb)(const char *msg);	1034	static void (*syserr_cb)(const char *msg);
549		1035
550	void	1036	void ecb_cold
551	ev_set_syserr_cb (void (*cb)(const char *msg))	1037	ev_set_syserr_cb (void (*cb)(const char *msg))
552	{	1038	{
553	syserr_cb = cb;	1039	syserr_cb = cb;
554	}	1040	}
555		1041
556	static void noinline	1042	static void noinline ecb_cold
557	ev_syserr (const char *msg)	1043	ev_syserr (const char *msg)
558	{	1044	{
559	if (!msg)	1045	if (!msg)
560	msg = "(libev) system error";	1046	msg = "(libev) system error";
561		1047
562	if (syserr_cb)	1048	if (syserr_cb)
563	syserr_cb (msg);	1049	syserr_cb (msg);
564	else	1050	else
565	{	1051	{
566	#if EV_AVOID_STDIO	1052	#if EV_AVOID_STDIO
567	const char *err = strerror (errno);
568
569	ev_printerr (msg);	1053	ev_printerr (msg);
570	ev_printerr (": ");	1054	ev_printerr (": ");
571	ev_printerr (err);	1055	ev_printerr (strerror (errno));
572	ev_printerr ("\n");	1056	ev_printerr ("\n");
573	#else	1057	#else
574	perror (msg);	1058	perror (msg);
575	#endif	1059	#endif
576	abort ();	1060	abort ();
…		…
596	#endif	1080	#endif
597	}	1081	}
598		1082
599	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1083	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
600		1084
601	void	1085	void ecb_cold
602	ev_set_allocator (void *(*cb)(void *ptr, long size))	1086	ev_set_allocator (void *(*cb)(void *ptr, long size))
603	{	1087	{
604	alloc = cb;	1088	alloc = cb;
605	}	1089	}
606		1090
…		…
610	ptr = alloc (ptr, size);	1094	ptr = alloc (ptr, size);
611		1095
612	if (!ptr && size)	1096	if (!ptr && size)
613	{	1097	{
614	#if EV_AVOID_STDIO	1098	#if EV_AVOID_STDIO
615	ev_printerr ("libev: memory allocation failed, aborting.\n");	1099	ev_printerr ("(libev) memory allocation failed, aborting.\n");
616	#else	1100	#else
617	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	1101	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
618	#endif	1102	#endif
619	abort ();	1103	abort ();
620	}	1104	}
621		1105
622	return ptr;	1106	return ptr;
…		…
639	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	1123	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
640	unsigned char unused;	1124	unsigned char unused;
641	#if EV_USE_EPOLL	1125	#if EV_USE_EPOLL
642	unsigned int egen; /* generation counter to counter epoll bugs */	1126	unsigned int egen; /* generation counter to counter epoll bugs */
643	#endif	1127	#endif
644	#if EV_SELECT_IS_WINSOCKET	1128	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
645	SOCKET handle;	1129	SOCKET handle;
		1130	#endif
		1131	#if EV_USE_IOCP
		1132	OVERLAPPED or, ow;
646	#endif	1133	#endif
647	} ANFD;	1134	} ANFD;
648		1135
649	/* stores the pending event set for a given watcher */	1136	/* stores the pending event set for a given watcher */
650	typedef struct	1137	typedef struct
…		…
715	# define EV_RELEASE_CB (void)0	1202	# define EV_RELEASE_CB (void)0
716	# define EV_ACQUIRE_CB (void)0	1203	# define EV_ACQUIRE_CB (void)0
717	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	1204	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
718	#endif	1205	#endif
719		1206
720	#define EVUNLOOP_RECURSE 0x80	1207	#define EVBREAK_RECURSE 0x80
721		1208
722	/*****************************************************************************/	1209	/*****************************************************************************/
723		1210
724	#ifndef EV_HAVE_EV_TIME	1211	#ifndef EV_HAVE_EV_TIME
725	ev_tstamp	1212	ev_tstamp
…		…
769	if (delay > 0.)	1256	if (delay > 0.)
770	{	1257	{
771	#if EV_USE_NANOSLEEP	1258	#if EV_USE_NANOSLEEP
772	struct timespec ts;	1259	struct timespec ts;
773		1260
774	ts.tv_sec = (time_t)delay;	1261	EV_TS_SET (ts, delay);
775	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
776
777	nanosleep (&ts, 0);	1262	nanosleep (&ts, 0);
778	#elif defined(_WIN32)	1263	#elif defined(_WIN32)
779	Sleep ((unsigned long)(delay * 1e3));	1264	Sleep ((unsigned long)(delay * 1e3));
780	#else	1265	#else
781	struct timeval tv;	1266	struct timeval tv;
782		1267
783	tv.tv_sec = (time_t)delay;
784	tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
785
786	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1268	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
787	/* something not guaranteed by newer posix versions, but guaranteed */	1269	/* something not guaranteed by newer posix versions, but guaranteed */
788	/* by older ones */	1270	/* by older ones */
		1271	EV_TV_SET (tv, delay);
789	select (0, 0, 0, 0, &tv);	1272	select (0, 0, 0, 0, &tv);
790	#endif	1273	#endif
791	}	1274	}
792	}	1275	}
793		1276
…		…
816	}	1299	}
817		1300
818	return ncur;	1301	return ncur;
819	}	1302	}
820		1303
821	static noinline void *	1304	static void * noinline ecb_cold
822	array_realloc (int elem, void *base, int *cur, int cnt)	1305	array_realloc (int elem, void *base, int *cur, int cnt)
823	{	1306	{
824	*cur = array_nextsize (elem, *cur, cnt);	1307	*cur = array_nextsize (elem, *cur, cnt);
825	return ev_realloc (base, elem * *cur);	1308	return ev_realloc (base, elem * *cur);
826	}	1309	}
…		…
829	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1312	memset ((void *)(base), 0, sizeof (*(base)) * (count))
830		1313
831	#define array_needsize(type,base,cur,cnt,init) \	1314	#define array_needsize(type,base,cur,cnt,init) \
832	if (expect_false ((cnt) > (cur))) \	1315	if (expect_false ((cnt) > (cur))) \
833	{ \	1316	{ \
834	int ocur_ = (cur); \	1317	int ecb_unused ocur_ = (cur); \
835	(base) = (type *)array_realloc \	1318	(base) = (type *)array_realloc \
836	(sizeof (type), (base), &(cur), (cnt)); \	1319	(sizeof (type), (base), &(cur), (cnt)); \
837	init ((base) + (ocur_), (cur) - ocur_); \	1320	init ((base) + (ocur_), (cur) - ocur_); \
838	}	1321	}
839		1322
…		…
939	inline_size void	1422	inline_size void
940	fd_reify (EV_P)	1423	fd_reify (EV_P)
941	{	1424	{
942	int i;	1425	int i;
943		1426
		1427	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
		1428	for (i = 0; i < fdchangecnt; ++i)
		1429	{
		1430	int fd = fdchanges [i];
		1431	ANFD *anfd = anfds + fd;
		1432
		1433	if (anfd->reify & EV__IOFDSET && anfd->head)
		1434	{
		1435	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		1436
		1437	if (handle != anfd->handle)
		1438	{
		1439	unsigned long arg;
		1440
		1441	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		1442
		1443	/* handle changed, but fd didn't - we need to do it in two steps */
		1444	backend_modify (EV_A_ fd, anfd->events, 0);
		1445	anfd->events = 0;
		1446	anfd->handle = handle;
		1447	}
		1448	}
		1449	}
		1450	#endif
		1451
944	for (i = 0; i < fdchangecnt; ++i)	1452	for (i = 0; i < fdchangecnt; ++i)
945	{	1453	{
946	int fd = fdchanges [i];	1454	int fd = fdchanges [i];
947	ANFD *anfd = anfds + fd;	1455	ANFD *anfd = anfds + fd;
948	ev_io *w;	1456	ev_io *w;
949		1457
950	unsigned char events = 0;	1458	unsigned char o_events = anfd->events;
		1459	unsigned char o_reify = anfd->reify;
951		1460
952	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	1461	anfd->reify = 0;
953	events |= (unsigned char)w->events;
954		1462
955	#if EV_SELECT_IS_WINSOCKET	1463	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
956	if (events)
957	{	1464	{
958	unsigned long arg;	1465	anfd->events = 0;
959	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	1466
960	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	1467	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		1468	anfd->events |= (unsigned char)w->events;
		1469
		1470	if (o_events != anfd->events)
		1471	o_reify = EV__IOFDSET; /* actually |= */
961	}	1472	}
962	#endif
963		1473
964	{	1474	if (o_reify & EV__IOFDSET)
965	unsigned char o_events = anfd->events;
966	unsigned char o_reify = anfd->reify;
967
968	anfd->reify = 0;
969	anfd->events = events;
970
971	if (o_events != events || o_reify & EV__IOFDSET)
972	backend_modify (EV_A_ fd, o_events, events);	1475	backend_modify (EV_A_ fd, o_events, anfd->events);
973	}
974	}	1476	}
975		1477
976	fdchangecnt = 0;	1478	fdchangecnt = 0;
977	}	1479	}
978		1480
…		…
990	fdchanges [fdchangecnt - 1] = fd;	1492	fdchanges [fdchangecnt - 1] = fd;
991	}	1493	}
992	}	1494	}
993		1495
994	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1496	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
995	inline_speed void	1497	inline_speed void ecb_cold
996	fd_kill (EV_P_ int fd)	1498	fd_kill (EV_P_ int fd)
997	{	1499	{
998	ev_io *w;	1500	ev_io *w;
999		1501
1000	while ((w = (ev_io *)anfds [fd].head))	1502	while ((w = (ev_io *)anfds [fd].head))
…		…
1003	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1505	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1004	}	1506	}
1005	}	1507	}
1006		1508
1007	/* check whether the given fd is actually valid, for error recovery */	1509	/* check whether the given fd is actually valid, for error recovery */
1008	inline_size int	1510	inline_size int ecb_cold
1009	fd_valid (int fd)	1511	fd_valid (int fd)
1010	{	1512	{
1011	#ifdef _WIN32	1513	#ifdef _WIN32
1012	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1514	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1013	#else	1515	#else
1014	return fcntl (fd, F_GETFD) != -1;	1516	return fcntl (fd, F_GETFD) != -1;
1015	#endif	1517	#endif
1016	}	1518	}
1017		1519
1018	/* called on EBADF to verify fds */	1520	/* called on EBADF to verify fds */
1019	static void noinline	1521	static void noinline ecb_cold
1020	fd_ebadf (EV_P)	1522	fd_ebadf (EV_P)
1021	{	1523	{
1022	int fd;	1524	int fd;
1023		1525
1024	for (fd = 0; fd < anfdmax; ++fd)	1526	for (fd = 0; fd < anfdmax; ++fd)
…		…
1026	if (!fd_valid (fd) && errno == EBADF)	1528	if (!fd_valid (fd) && errno == EBADF)
1027	fd_kill (EV_A_ fd);	1529	fd_kill (EV_A_ fd);
1028	}	1530	}
1029		1531
1030	/* called on ENOMEM in select/poll to kill some fds and retry */	1532	/* called on ENOMEM in select/poll to kill some fds and retry */
1031	static void noinline	1533	static void noinline ecb_cold
1032	fd_enomem (EV_P)	1534	fd_enomem (EV_P)
1033	{	1535	{
1034	int fd;	1536	int fd;
1035		1537
1036	for (fd = anfdmax; fd--; )	1538	for (fd = anfdmax; fd--; )
…		…
1231		1733
1232	/*****************************************************************************/	1734	/*****************************************************************************/
1233		1735
1234	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	1736	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1235		1737
1236	static void noinline	1738	static void noinline ecb_cold
1237	evpipe_init (EV_P)	1739	evpipe_init (EV_P)
1238	{	1740	{
1239	if (!ev_is_active (&pipe_w))	1741	if (!ev_is_active (&pipe_w))
1240	{	1742	{
1241	# if EV_USE_EVENTFD	1743	# if EV_USE_EVENTFD
…		…
1263	ev_io_start (EV_A_ &pipe_w);	1765	ev_io_start (EV_A_ &pipe_w);
1264	ev_unref (EV_A); /* watcher should not keep loop alive */	1766	ev_unref (EV_A); /* watcher should not keep loop alive */
1265	}	1767	}
1266	}	1768	}
1267		1769
1268	inline_size void	1770	inline_speed void
1269	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1771	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1270	{	1772	{
1271	if (!*flag)	1773	if (expect_true (*flag))
		1774	return;
		1775
		1776	*flag = 1;
		1777
		1778	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1779
		1780	pipe_write_skipped = 1;
		1781
		1782	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1783
		1784	if (pipe_write_wanted)
1272	{	1785	{
		1786	int old_errno;
		1787
		1788	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1789
1273	int old_errno = errno; /* save errno because write might clobber it */	1790	old_errno = errno; /* save errno because write will clobber it */
1274	char dummy;
1275
1276	*flag = 1;
1277		1791
1278	#if EV_USE_EVENTFD	1792	#if EV_USE_EVENTFD
1279	if (evfd >= 0)	1793	if (evfd >= 0)
1280	{	1794	{
1281	uint64_t counter = 1;	1795	uint64_t counter = 1;
1282	write (evfd, &counter, sizeof (uint64_t));	1796	write (evfd, &counter, sizeof (uint64_t));
1283	}	1797	}
1284	else	1798	else
1285	#endif	1799	#endif
		1800	{
		1801	/* win32 people keep sending patches that change this write() to send() */
		1802	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1803	/* so when you think this write should be a send instead, please find out */
		1804	/* where your send() is from - it's definitely not the microsoft send, and */
		1805	/* tell me. thank you. */
1286	write (evpipe [1], &dummy, 1);	1806	write (evpipe [1], &(evpipe [1]), 1);
		1807	}
1287		1808
1288	errno = old_errno;	1809	errno = old_errno;
1289	}	1810	}
1290	}	1811	}
1291		1812
…		…
1294	static void	1815	static void
1295	pipecb (EV_P_ ev_io *iow, int revents)	1816	pipecb (EV_P_ ev_io *iow, int revents)
1296	{	1817	{
1297	int i;	1818	int i;
1298		1819
		1820	if (revents & EV_READ)
		1821	{
1299	#if EV_USE_EVENTFD	1822	#if EV_USE_EVENTFD
1300	if (evfd >= 0)	1823	if (evfd >= 0)
1301	{	1824	{
1302	uint64_t counter;	1825	uint64_t counter;
1303	read (evfd, &counter, sizeof (uint64_t));	1826	read (evfd, &counter, sizeof (uint64_t));
1304	}	1827	}
1305	else	1828	else
1306	#endif	1829	#endif
1307	{	1830	{
1308	char dummy;	1831	char dummy;
		1832	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1309	read (evpipe [0], &dummy, 1);	1833	read (evpipe [0], &dummy, 1);
		1834	}
1310	}	1835	}
1311		1836
		1837	pipe_write_skipped = 0;
		1838
		1839	#if EV_SIGNAL_ENABLE
1312	if (sig_pending)	1840	if (sig_pending)
1313	{	1841	{
1314	sig_pending = 0;	1842	sig_pending = 0;
1315		1843
1316	for (i = EV_NSIG - 1; i--; )	1844	for (i = EV_NSIG - 1; i--; )
1317	if (expect_false (signals [i].pending))	1845	if (expect_false (signals [i].pending))
1318	ev_feed_signal_event (EV_A_ i + 1);	1846	ev_feed_signal_event (EV_A_ i + 1);
1319	}	1847	}
		1848	#endif
1320		1849
1321	#if EV_ASYNC_ENABLE	1850	#if EV_ASYNC_ENABLE
1322	if (async_pending)	1851	if (async_pending)
1323	{	1852	{
1324	async_pending = 0;	1853	async_pending = 0;
…		…
1333	#endif	1862	#endif
1334	}	1863	}
1335		1864
1336	/*****************************************************************************/	1865	/*****************************************************************************/
1337		1866
		1867	void
		1868	ev_feed_signal (int signum)
		1869	{
		1870	#if EV_MULTIPLICITY
		1871	EV_P = signals [signum - 1].loop;
		1872
		1873	if (!EV_A)
		1874	return;
		1875	#endif
		1876
		1877	if (!ev_active (&pipe_w))
		1878	return;
		1879
		1880	signals [signum - 1].pending = 1;
		1881	evpipe_write (EV_A_ &sig_pending);
		1882	}
		1883
1338	static void	1884	static void
1339	ev_sighandler (int signum)	1885	ev_sighandler (int signum)
1340	{	1886	{
1341	#if EV_MULTIPLICITY
1342	EV_P = signals [signum - 1].loop;
1343	#endif
1344
1345	#ifdef _WIN32	1887	#ifdef _WIN32
1346	signal (signum, ev_sighandler);	1888	signal (signum, ev_sighandler);
1347	#endif	1889	#endif
1348		1890
1349	signals [signum - 1].pending = 1;	1891	ev_feed_signal (signum);
1350	evpipe_write (EV_A_ &sig_pending);
1351	}	1892	}
1352		1893
1353	void noinline	1894	void noinline
1354	ev_feed_signal_event (EV_P_ int signum)	1895	ev_feed_signal_event (EV_P_ int signum)
1355	{	1896	{
…		…
1455		1996
1456	#endif	1997	#endif
1457		1998
1458	/*****************************************************************************/	1999	/*****************************************************************************/
1459		2000
		2001	#if EV_USE_IOCP
		2002	# include "ev_iocp.c"
		2003	#endif
1460	#if EV_USE_PORT	2004	#if EV_USE_PORT
1461	# include "ev_port.c"	2005	# include "ev_port.c"
1462	#endif	2006	#endif
1463	#if EV_USE_KQUEUE	2007	#if EV_USE_KQUEUE
1464	# include "ev_kqueue.c"	2008	# include "ev_kqueue.c"
…		…
1471	#endif	2015	#endif
1472	#if EV_USE_SELECT	2016	#if EV_USE_SELECT
1473	# include "ev_select.c"	2017	# include "ev_select.c"
1474	#endif	2018	#endif
1475		2019
1476	int	2020	int ecb_cold
1477	ev_version_major (void)	2021	ev_version_major (void)
1478	{	2022	{
1479	return EV_VERSION_MAJOR;	2023	return EV_VERSION_MAJOR;
1480	}	2024	}
1481		2025
1482	int	2026	int ecb_cold
1483	ev_version_minor (void)	2027	ev_version_minor (void)
1484	{	2028	{
1485	return EV_VERSION_MINOR;	2029	return EV_VERSION_MINOR;
1486	}	2030	}
1487		2031
1488	/* return true if we are running with elevated privileges and should ignore env variables */	2032	/* return true if we are running with elevated privileges and should ignore env variables */
1489	int inline_size	2033	int inline_size ecb_cold
1490	enable_secure (void)	2034	enable_secure (void)
1491	{	2035	{
1492	#ifdef _WIN32	2036	#ifdef _WIN32
1493	return 0;	2037	return 0;
1494	#else	2038	#else
1495	return getuid () != geteuid ()	2039	return getuid () != geteuid ()
1496	|| getgid () != getegid ();	2040	|| getgid () != getegid ();
1497	#endif	2041	#endif
1498	}	2042	}
1499		2043
1500	unsigned int	2044	unsigned int ecb_cold
1501	ev_supported_backends (void)	2045	ev_supported_backends (void)
1502	{	2046	{
1503	unsigned int flags = 0;	2047	unsigned int flags = 0;
1504		2048
1505	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2049	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
…		…
1509	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2053	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1510		2054
1511	return flags;	2055	return flags;
1512	}	2056	}
1513		2057
1514	unsigned int	2058	unsigned int ecb_cold
1515	ev_recommended_backends (void)	2059	ev_recommended_backends (void)
1516	{	2060	{
1517	unsigned int flags = ev_supported_backends ();	2061	unsigned int flags = ev_supported_backends ();
1518		2062
1519	#ifndef __NetBSD__	2063	#ifndef __NetBSD__
…		…
1531	#endif	2075	#endif
1532		2076
1533	return flags;	2077	return flags;
1534	}	2078	}
1535		2079
1536	unsigned int	2080	unsigned int ecb_cold
1537	ev_embeddable_backends (void)	2081	ev_embeddable_backends (void)
1538	{	2082	{
1539	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2083	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1540		2084
1541	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2085	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1542	/* please fix it and tell me how to detect the fix */	2086	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1543	flags &= ~EVBACKEND_EPOLL;	2087	flags &= ~EVBACKEND_EPOLL;
1544		2088
1545	return flags;	2089	return flags;
1546	}	2090	}
1547		2091
1548	unsigned int	2092	unsigned int
…		…
1586	ev_userdata (EV_P)	2130	ev_userdata (EV_P)
1587	{	2131	{
1588	return userdata;	2132	return userdata;
1589	}	2133	}
1590		2134
		2135	void
1591	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2136	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1592	{	2137	{
1593	invoke_cb = invoke_pending_cb;	2138	invoke_cb = invoke_pending_cb;
1594	}	2139	}
1595		2140
		2141	void
1596	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2142	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1597	{	2143	{
1598	release_cb = release;	2144	release_cb = release;
1599	acquire_cb = acquire;	2145	acquire_cb = acquire;
1600	}	2146	}
1601	#endif	2147	#endif
1602		2148
1603	/* initialise a loop structure, must be zero-initialised */	2149	/* initialise a loop structure, must be zero-initialised */
1604	static void noinline	2150	static void noinline ecb_cold
1605	loop_init (EV_P_ unsigned int flags)	2151	loop_init (EV_P_ unsigned int flags)
1606	{	2152	{
1607	if (!backend)	2153	if (!backend)
1608	{	2154	{
		2155	origflags = flags;
		2156
1609	#if EV_USE_REALTIME	2157	#if EV_USE_REALTIME
1610	if (!have_realtime)	2158	if (!have_realtime)
1611	{	2159	{
1612	struct timespec ts;	2160	struct timespec ts;
1613		2161
…		…
1635	if (!(flags & EVFLAG_NOENV)	2183	if (!(flags & EVFLAG_NOENV)
1636	&& !enable_secure ()	2184	&& !enable_secure ()
1637	&& getenv ("LIBEV_FLAGS"))	2185	&& getenv ("LIBEV_FLAGS"))
1638	flags = atoi (getenv ("LIBEV_FLAGS"));	2186	flags = atoi (getenv ("LIBEV_FLAGS"));
1639		2187
1640	ev_rt_now = ev_time ();	2188	ev_rt_now = ev_time ();
1641	mn_now = get_clock ();	2189	mn_now = get_clock ();
1642	now_floor = mn_now;	2190	now_floor = mn_now;
1643	rtmn_diff = ev_rt_now - mn_now;	2191	rtmn_diff = ev_rt_now - mn_now;
1644	#if EV_FEATURE_API	2192	#if EV_FEATURE_API
1645	invoke_cb = ev_invoke_pending;	2193	invoke_cb = ev_invoke_pending;
1646	#endif	2194	#endif
1647		2195
1648	io_blocktime = 0.;	2196	io_blocktime = 0.;
1649	timeout_blocktime = 0.;	2197	timeout_blocktime = 0.;
1650	backend = 0;	2198	backend = 0;
1651	backend_fd = -1;	2199	backend_fd = -1;
1652	sig_pending = 0;	2200	sig_pending = 0;
1653	#if EV_ASYNC_ENABLE	2201	#if EV_ASYNC_ENABLE
1654	async_pending = 0;	2202	async_pending = 0;
1655	#endif	2203	#endif
		2204	pipe_write_skipped = 0;
		2205	pipe_write_wanted = 0;
1656	#if EV_USE_INOTIFY	2206	#if EV_USE_INOTIFY
1657	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2207	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1658	#endif	2208	#endif
1659	#if EV_USE_SIGNALFD	2209	#if EV_USE_SIGNALFD
1660	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2210	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1661	#endif	2211	#endif
1662		2212
1663	if (!(flags & 0x0000ffffU))	2213	if (!(flags & EVBACKEND_MASK))
1664	flags |= ev_recommended_backends ();	2214	flags |= ev_recommended_backends ();
1665		2215
		2216	#if EV_USE_IOCP
		2217	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		2218	#endif
1666	#if EV_USE_PORT	2219	#if EV_USE_PORT
1667	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	2220	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1668	#endif	2221	#endif
1669	#if EV_USE_KQUEUE	2222	#if EV_USE_KQUEUE
1670	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	2223	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1687	#endif	2240	#endif
1688	}	2241	}
1689	}	2242	}
1690		2243
1691	/* free up a loop structure */	2244	/* free up a loop structure */
1692	static void noinline	2245	void ecb_cold
1693	loop_destroy (EV_P)	2246	ev_loop_destroy (EV_P)
1694	{	2247	{
1695	int i;	2248	int i;
		2249
		2250	#if EV_MULTIPLICITY
		2251	/* mimic free (0) */
		2252	if (!EV_A)
		2253	return;
		2254	#endif
		2255
		2256	#if EV_CLEANUP_ENABLE
		2257	/* queue cleanup watchers (and execute them) */
		2258	if (expect_false (cleanupcnt))
		2259	{
		2260	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		2261	EV_INVOKE_PENDING;
		2262	}
		2263	#endif
		2264
		2265	#if EV_CHILD_ENABLE
		2266	if (ev_is_active (&childev))
		2267	{
		2268	ev_ref (EV_A); /* child watcher */
		2269	ev_signal_stop (EV_A_ &childev);
		2270	}
		2271	#endif
1696		2272
1697	if (ev_is_active (&pipe_w))	2273	if (ev_is_active (&pipe_w))
1698	{	2274	{
1699	/*ev_ref (EV_A);*/	2275	/*ev_ref (EV_A);*/
1700	/*ev_io_stop (EV_A_ &pipe_w);*/	2276	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1722	#endif	2298	#endif
1723		2299
1724	if (backend_fd >= 0)	2300	if (backend_fd >= 0)
1725	close (backend_fd);	2301	close (backend_fd);
1726		2302
		2303	#if EV_USE_IOCP
		2304	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		2305	#endif
1727	#if EV_USE_PORT	2306	#if EV_USE_PORT
1728	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	2307	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1729	#endif	2308	#endif
1730	#if EV_USE_KQUEUE	2309	#if EV_USE_KQUEUE
1731	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	2310	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1758	array_free (periodic, EMPTY);	2337	array_free (periodic, EMPTY);
1759	#endif	2338	#endif
1760	#if EV_FORK_ENABLE	2339	#if EV_FORK_ENABLE
1761	array_free (fork, EMPTY);	2340	array_free (fork, EMPTY);
1762	#endif	2341	#endif
		2342	#if EV_CLEANUP_ENABLE
		2343	array_free (cleanup, EMPTY);
		2344	#endif
1763	array_free (prepare, EMPTY);	2345	array_free (prepare, EMPTY);
1764	array_free (check, EMPTY);	2346	array_free (check, EMPTY);
1765	#if EV_ASYNC_ENABLE	2347	#if EV_ASYNC_ENABLE
1766	array_free (async, EMPTY);	2348	array_free (async, EMPTY);
1767	#endif	2349	#endif
1768		2350
1769	backend = 0;	2351	backend = 0;
		2352
		2353	#if EV_MULTIPLICITY
		2354	if (ev_is_default_loop (EV_A))
		2355	#endif
		2356	ev_default_loop_ptr = 0;
		2357	#if EV_MULTIPLICITY
		2358	else
		2359	ev_free (EV_A);
		2360	#endif
1770	}	2361	}
1771		2362
1772	#if EV_USE_INOTIFY	2363	#if EV_USE_INOTIFY
1773	inline_size void infy_fork (EV_P);	2364	inline_size void infy_fork (EV_P);
1774	#endif	2365	#endif
…		…
1789	infy_fork (EV_A);	2380	infy_fork (EV_A);
1790	#endif	2381	#endif
1791		2382
1792	if (ev_is_active (&pipe_w))	2383	if (ev_is_active (&pipe_w))
1793	{	2384	{
1794	/* this "locks" the handlers against writing to the pipe */	2385	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1795	/* while we modify the fd vars */
1796	sig_pending = 1;
1797	#if EV_ASYNC_ENABLE
1798	async_pending = 1;
1799	#endif
1800		2386
1801	ev_ref (EV_A);	2387	ev_ref (EV_A);
1802	ev_io_stop (EV_A_ &pipe_w);	2388	ev_io_stop (EV_A_ &pipe_w);
1803		2389
1804	#if EV_USE_EVENTFD	2390	#if EV_USE_EVENTFD
…		…
1822	postfork = 0;	2408	postfork = 0;
1823	}	2409	}
1824		2410
1825	#if EV_MULTIPLICITY	2411	#if EV_MULTIPLICITY
1826		2412
1827	struct ev_loop *	2413	struct ev_loop * ecb_cold
1828	ev_loop_new (unsigned int flags)	2414	ev_loop_new (unsigned int flags)
1829	{	2415	{
1830	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2416	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1831		2417
1832	memset (EV_A, 0, sizeof (struct ev_loop));	2418	memset (EV_A, 0, sizeof (struct ev_loop));
1833	loop_init (EV_A_ flags);	2419	loop_init (EV_A_ flags);
1834		2420
1835	if (ev_backend (EV_A))	2421	if (ev_backend (EV_A))
1836	return EV_A;	2422	return EV_A;
1837		2423
		2424	ev_free (EV_A);
1838	return 0;	2425	return 0;
1839	}	2426	}
1840		2427
1841	void
1842	ev_loop_destroy (EV_P)
1843	{
1844	loop_destroy (EV_A);
1845	ev_free (loop);
1846	}
1847
1848	void
1849	ev_loop_fork (EV_P)
1850	{
1851	postfork = 1; /* must be in line with ev_default_fork */
1852	}
1853	#endif /* multiplicity */	2428	#endif /* multiplicity */
1854		2429
1855	#if EV_VERIFY	2430	#if EV_VERIFY
1856	static void noinline	2431	static void noinline ecb_cold
1857	verify_watcher (EV_P_ W w)	2432	verify_watcher (EV_P_ W w)
1858	{	2433	{
1859	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2434	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1860		2435
1861	if (w->pending)	2436	if (w->pending)
1862	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2437	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1863	}	2438	}
1864		2439
1865	static void noinline	2440	static void noinline ecb_cold
1866	verify_heap (EV_P_ ANHE *heap, int N)	2441	verify_heap (EV_P_ ANHE *heap, int N)
1867	{	2442	{
1868	int i;	2443	int i;
1869		2444
1870	for (i = HEAP0; i < N + HEAP0; ++i)	2445	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
1875		2450
1876	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2451	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1877	}	2452	}
1878	}	2453	}
1879		2454
1880	static void noinline	2455	static void noinline ecb_cold
1881	array_verify (EV_P_ W *ws, int cnt)	2456	array_verify (EV_P_ W *ws, int cnt)
1882	{	2457	{
1883	while (cnt--)	2458	while (cnt--)
1884	{	2459	{
1885	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2460	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
1887	}	2462	}
1888	}	2463	}
1889	#endif	2464	#endif
1890		2465
1891	#if EV_FEATURE_API	2466	#if EV_FEATURE_API
1892	void	2467	void ecb_cold
1893	ev_verify (EV_P)	2468	ev_verify (EV_P)
1894	{	2469	{
1895	#if EV_VERIFY	2470	#if EV_VERIFY
1896	int i;	2471	int i;
1897	WL w;	2472	WL w;
…		…
1932	#if EV_FORK_ENABLE	2507	#if EV_FORK_ENABLE
1933	assert (forkmax >= forkcnt);	2508	assert (forkmax >= forkcnt);
1934	array_verify (EV_A_ (W *)forks, forkcnt);	2509	array_verify (EV_A_ (W *)forks, forkcnt);
1935	#endif	2510	#endif
1936		2511
		2512	#if EV_CLEANUP_ENABLE
		2513	assert (cleanupmax >= cleanupcnt);
		2514	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2515	#endif
		2516
1937	#if EV_ASYNC_ENABLE	2517	#if EV_ASYNC_ENABLE
1938	assert (asyncmax >= asynccnt);	2518	assert (asyncmax >= asynccnt);
1939	array_verify (EV_A_ (W *)asyncs, asynccnt);	2519	array_verify (EV_A_ (W *)asyncs, asynccnt);
1940	#endif	2520	#endif
1941		2521
…		…
1958	#endif	2538	#endif
1959	}	2539	}
1960	#endif	2540	#endif
1961		2541
1962	#if EV_MULTIPLICITY	2542	#if EV_MULTIPLICITY
1963	struct ev_loop *	2543	struct ev_loop * ecb_cold
1964	ev_default_loop_init (unsigned int flags)
1965	#else	2544	#else
1966	int	2545	int
		2546	#endif
1967	ev_default_loop (unsigned int flags)	2547	ev_default_loop (unsigned int flags)
1968	#endif
1969	{	2548	{
1970	if (!ev_default_loop_ptr)	2549	if (!ev_default_loop_ptr)
1971	{	2550	{
1972	#if EV_MULTIPLICITY	2551	#if EV_MULTIPLICITY
1973	EV_P = ev_default_loop_ptr = &default_loop_struct;	2552	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1992		2571
1993	return ev_default_loop_ptr;	2572	return ev_default_loop_ptr;
1994	}	2573	}
1995		2574
1996	void	2575	void
1997	ev_default_destroy (void)	2576	ev_loop_fork (EV_P)
1998	{	2577	{
1999	#if EV_MULTIPLICITY
2000	EV_P = ev_default_loop_ptr;
2001	#endif
2002
2003	ev_default_loop_ptr = 0;
2004
2005	#if EV_CHILD_ENABLE
2006	ev_ref (EV_A); /* child watcher */
2007	ev_signal_stop (EV_A_ &childev);
2008	#endif
2009
2010	loop_destroy (EV_A);
2011	}
2012
2013	void
2014	ev_default_fork (void)
2015	{
2016	#if EV_MULTIPLICITY
2017	EV_P = ev_default_loop_ptr;
2018	#endif
2019
2020	postfork = 1; /* must be in line with ev_loop_fork */	2578	postfork = 1; /* must be in line with ev_default_fork */
2021	}	2579	}
2022		2580
2023	/*****************************************************************************/	2581	/*****************************************************************************/
2024		2582
2025	void	2583	void
…		…
2047		2605
2048	for (pri = NUMPRI; pri--; )	2606	for (pri = NUMPRI; pri--; )
2049	while (pendingcnt [pri])	2607	while (pendingcnt [pri])
2050	{	2608	{
2051	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2609	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2052
2053	/*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2054	/* ^ this is no longer true, as pending_w could be here */
2055		2610
2056	p->w->pending = 0;	2611	p->w->pending = 0;
2057	EV_CB_INVOKE (p->w, p->events);	2612	EV_CB_INVOKE (p->w, p->events);
2058	EV_FREQUENT_CHECK;	2613	EV_FREQUENT_CHECK;
2059	}	2614	}
…		…
2121	feed_reverse_done (EV_A_ EV_TIMER);	2676	feed_reverse_done (EV_A_ EV_TIMER);
2122	}	2677	}
2123	}	2678	}
2124		2679
2125	#if EV_PERIODIC_ENABLE	2680	#if EV_PERIODIC_ENABLE
		2681
		2682	static void noinline
		2683	periodic_recalc (EV_P_ ev_periodic *w)
		2684	{
		2685	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
		2686	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
		2687
		2688	/* the above almost always errs on the low side */
		2689	while (at <= ev_rt_now)
		2690	{
		2691	ev_tstamp nat = at + w->interval;
		2692
		2693	/* when resolution fails us, we use ev_rt_now */
		2694	if (expect_false (nat == at))
		2695	{
		2696	at = ev_rt_now;
		2697	break;
		2698	}
		2699
		2700	at = nat;
		2701	}
		2702
		2703	ev_at (w) = at;
		2704	}
		2705
2126	/* make periodics pending */	2706	/* make periodics pending */
2127	inline_size void	2707	inline_size void
2128	periodics_reify (EV_P)	2708	periodics_reify (EV_P)
2129	{	2709	{
2130	EV_FREQUENT_CHECK;	2710	EV_FREQUENT_CHECK;
…		…
2149	ANHE_at_cache (periodics [HEAP0]);	2729	ANHE_at_cache (periodics [HEAP0]);
2150	downheap (periodics, periodiccnt, HEAP0);	2730	downheap (periodics, periodiccnt, HEAP0);
2151	}	2731	}
2152	else if (w->interval)	2732	else if (w->interval)
2153	{	2733	{
2154	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2734	periodic_recalc (EV_A_ w);
2155	/* if next trigger time is not sufficiently in the future, put it there */
2156	/* this might happen because of floating point inexactness */
2157	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2158	{
2159	ev_at (w) += w->interval;
2160
2161	/* if interval is unreasonably low we might still have a time in the past */
2162	/* so correct this. this will make the periodic very inexact, but the user */
2163	/* has effectively asked to get triggered more often than possible */
2164	if (ev_at (w) < ev_rt_now)
2165	ev_at (w) = ev_rt_now;
2166	}
2167
2168	ANHE_at_cache (periodics [HEAP0]);	2735	ANHE_at_cache (periodics [HEAP0]);
2169	downheap (periodics, periodiccnt, HEAP0);	2736	downheap (periodics, periodiccnt, HEAP0);
2170	}	2737	}
2171	else	2738	else
2172	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2739	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2180	}	2747	}
2181	}	2748	}
2182		2749
2183	/* simply recalculate all periodics */	2750	/* simply recalculate all periodics */
2184	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2751	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2185	static void noinline	2752	static void noinline ecb_cold
2186	periodics_reschedule (EV_P)	2753	periodics_reschedule (EV_P)
2187	{	2754	{
2188	int i;	2755	int i;
2189		2756
2190	/* adjust periodics after time jump */	2757	/* adjust periodics after time jump */
…		…
2193	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);	2760	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2194		2761
2195	if (w->reschedule_cb)	2762	if (w->reschedule_cb)
2196	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2763	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2197	else if (w->interval)	2764	else if (w->interval)
2198	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2765	periodic_recalc (EV_A_ w);
2199		2766
2200	ANHE_at_cache (periodics [i]);	2767	ANHE_at_cache (periodics [i]);
2201	}	2768	}
2202		2769
2203	reheap (periodics, periodiccnt);	2770	reheap (periodics, periodiccnt);
2204	}	2771	}
2205	#endif	2772	#endif
2206		2773
2207	/* adjust all timers by a given offset */	2774	/* adjust all timers by a given offset */
2208	static void noinline	2775	static void noinline ecb_cold
2209	timers_reschedule (EV_P_ ev_tstamp adjust)	2776	timers_reschedule (EV_P_ ev_tstamp adjust)
2210	{	2777	{
2211	int i;	2778	int i;
2212		2779
2213	for (i = 0; i < timercnt; ++i)	2780	for (i = 0; i < timercnt; ++i)
…		…
2250	* doesn't hurt either as we only do this on time-jumps or	2817	* doesn't hurt either as we only do this on time-jumps or
2251	* in the unlikely event of having been preempted here.	2818	* in the unlikely event of having been preempted here.
2252	*/	2819	*/
2253	for (i = 4; --i; )	2820	for (i = 4; --i; )
2254	{	2821	{
		2822	ev_tstamp diff;
2255	rtmn_diff = ev_rt_now - mn_now;	2823	rtmn_diff = ev_rt_now - mn_now;
2256		2824
		2825	diff = odiff - rtmn_diff;
		2826
2257	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2827	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2258	return; /* all is well */	2828	return; /* all is well */
2259		2829
2260	ev_rt_now = ev_time ();	2830	ev_rt_now = ev_time ();
2261	mn_now = get_clock ();	2831	mn_now = get_clock ();
2262	now_floor = mn_now;	2832	now_floor = mn_now;
…		…
2285	mn_now = ev_rt_now;	2855	mn_now = ev_rt_now;
2286	}	2856	}
2287	}	2857	}
2288		2858
2289	void	2859	void
2290	ev_loop (EV_P_ int flags)	2860	ev_run (EV_P_ int flags)
2291	{	2861	{
2292	#if EV_FEATURE_API	2862	#if EV_FEATURE_API
2293	++loop_depth;	2863	++loop_depth;
2294	#endif	2864	#endif
2295		2865
2296	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2866	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2297		2867
2298	loop_done = EVUNLOOP_CANCEL;	2868	loop_done = EVBREAK_CANCEL;
2299		2869
2300	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2870	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2301		2871
2302	do	2872	do
2303	{	2873	{
…		…
2346	/* calculate blocking time */	2916	/* calculate blocking time */
2347	{	2917	{
2348	ev_tstamp waittime = 0.;	2918	ev_tstamp waittime = 0.;
2349	ev_tstamp sleeptime = 0.;	2919	ev_tstamp sleeptime = 0.;
2350		2920
		2921	/* remember old timestamp for io_blocktime calculation */
		2922	ev_tstamp prev_mn_now = mn_now;
		2923
		2924	/* update time to cancel out callback processing overhead */
		2925	time_update (EV_A_ 1e100);
		2926
		2927	/* from now on, we want a pipe-wake-up */
		2928	pipe_write_wanted = 1;
		2929
		2930	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		2931
2351	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2932	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2352	{	2933	{
2353	/* remember old timestamp for io_blocktime calculation */
2354	ev_tstamp prev_mn_now = mn_now;
2355
2356	/* update time to cancel out callback processing overhead */
2357	time_update (EV_A_ 1e100);
2358
2359	waittime = MAX_BLOCKTIME;	2934	waittime = MAX_BLOCKTIME;
2360		2935
2361	if (timercnt)	2936	if (timercnt)
2362	{	2937	{
2363	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2938	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2364	if (waittime > to) waittime = to;	2939	if (waittime > to) waittime = to;
2365	}	2940	}
2366		2941
2367	#if EV_PERIODIC_ENABLE	2942	#if EV_PERIODIC_ENABLE
2368	if (periodiccnt)	2943	if (periodiccnt)
2369	{	2944	{
2370	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2945	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2371	if (waittime > to) waittime = to;	2946	if (waittime > to) waittime = to;
2372	}	2947	}
2373	#endif	2948	#endif
2374		2949
2375	/* don't let timeouts decrease the waittime below timeout_blocktime */	2950	/* don't let timeouts decrease the waittime below timeout_blocktime */
2376	if (expect_false (waittime < timeout_blocktime))	2951	if (expect_false (waittime < timeout_blocktime))
2377	waittime = timeout_blocktime;	2952	waittime = timeout_blocktime;
		2953
		2954	/* at this point, we NEED to wait, so we have to ensure */
		2955	/* to pass a minimum nonzero value to the backend */
		2956	if (expect_false (waittime < backend_mintime))
		2957	waittime = backend_mintime;
2378		2958
2379	/* extra check because io_blocktime is commonly 0 */	2959	/* extra check because io_blocktime is commonly 0 */
2380	if (expect_false (io_blocktime))	2960	if (expect_false (io_blocktime))
2381	{	2961	{
2382	sleeptime = io_blocktime - (mn_now - prev_mn_now);	2962	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2383		2963
2384	if (sleeptime > waittime - backend_fudge)	2964	if (sleeptime > waittime - backend_mintime)
2385	sleeptime = waittime - backend_fudge;	2965	sleeptime = waittime - backend_mintime;
2386		2966
2387	if (expect_true (sleeptime > 0.))	2967	if (expect_true (sleeptime > 0.))
2388	{	2968	{
2389	ev_sleep (sleeptime);	2969	ev_sleep (sleeptime);
2390	waittime -= sleeptime;	2970	waittime -= sleeptime;
…		…
2393	}	2973	}
2394		2974
2395	#if EV_FEATURE_API	2975	#if EV_FEATURE_API
2396	++loop_count;	2976	++loop_count;
2397	#endif	2977	#endif
2398	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2978	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2399	backend_poll (EV_A_ waittime);	2979	backend_poll (EV_A_ waittime);
2400	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2980	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
		2981
		2982	pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
		2983
		2984	if (pipe_write_skipped)
		2985	{
		2986	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		2987	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		2988	}
		2989
2401		2990
2402	/* update ev_rt_now, do magic */	2991	/* update ev_rt_now, do magic */
2403	time_update (EV_A_ waittime + sleeptime);	2992	time_update (EV_A_ waittime + sleeptime);
2404	}	2993	}
2405		2994
…		…
2423	EV_INVOKE_PENDING;	3012	EV_INVOKE_PENDING;
2424	}	3013	}
2425	while (expect_true (	3014	while (expect_true (
2426	activecnt	3015	activecnt
2427	&& !loop_done	3016	&& !loop_done
2428	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	3017	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2429	));	3018	));
2430		3019
2431	if (loop_done == EVUNLOOP_ONE)	3020	if (loop_done == EVBREAK_ONE)
2432	loop_done = EVUNLOOP_CANCEL;	3021	loop_done = EVBREAK_CANCEL;
2433		3022
2434	#if EV_FEATURE_API	3023	#if EV_FEATURE_API
2435	--loop_depth;	3024	--loop_depth;
2436	#endif	3025	#endif
2437	}	3026	}
2438		3027
2439	void	3028	void
2440	ev_unloop (EV_P_ int how)	3029	ev_break (EV_P_ int how)
2441	{	3030	{
2442	loop_done = how;	3031	loop_done = how;
2443	}	3032	}
2444		3033
2445	void	3034	void
…		…
2593	EV_FREQUENT_CHECK;	3182	EV_FREQUENT_CHECK;
2594		3183
2595	wlist_del (&anfds[w->fd].head, (WL)w);	3184	wlist_del (&anfds[w->fd].head, (WL)w);
2596	ev_stop (EV_A_ (W)w);	3185	ev_stop (EV_A_ (W)w);
2597		3186
2598	fd_change (EV_A_ w->fd, 1);	3187	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2599		3188
2600	EV_FREQUENT_CHECK;	3189	EV_FREQUENT_CHECK;
2601	}	3190	}
2602		3191
2603	void noinline	3192	void noinline
…		…
2695	if (w->reschedule_cb)	3284	if (w->reschedule_cb)
2696	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	3285	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2697	else if (w->interval)	3286	else if (w->interval)
2698	{	3287	{
2699	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	3288	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2700	/* this formula differs from the one in periodic_reify because we do not always round up */	3289	periodic_recalc (EV_A_ w);
2701	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2702	}	3290	}
2703	else	3291	else
2704	ev_at (w) = w->offset;	3292	ev_at (w) = w->offset;
2705		3293
2706	EV_FREQUENT_CHECK;	3294	EV_FREQUENT_CHECK;
…		…
2827	sa.sa_handler = ev_sighandler;	3415	sa.sa_handler = ev_sighandler;
2828	sigfillset (&sa.sa_mask);	3416	sigfillset (&sa.sa_mask);
2829	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	3417	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2830	sigaction (w->signum, &sa, 0);	3418	sigaction (w->signum, &sa, 0);
2831		3419
		3420	if (origflags & EVFLAG_NOSIGMASK)
		3421	{
2832	sigemptyset (&sa.sa_mask);	3422	sigemptyset (&sa.sa_mask);
2833	sigaddset (&sa.sa_mask, w->signum);	3423	sigaddset (&sa.sa_mask, w->signum);
2834	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	3424	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		3425	}
2835	#endif	3426	#endif
2836	}	3427	}
2837		3428
2838	EV_FREQUENT_CHECK;	3429	EV_FREQUENT_CHECK;
2839	}	3430	}
…		…
2980	if (!pend || pend == path)	3571	if (!pend || pend == path)
2981	break;	3572	break;
2982		3573
2983	*pend = 0;	3574	*pend = 0;
2984	w->wd = inotify_add_watch (fs_fd, path, mask);	3575	w->wd = inotify_add_watch (fs_fd, path, mask);
2985	}	3576	}
2986	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3577	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2987	}	3578	}
2988	}	3579	}
2989		3580
2990	if (w->wd >= 0)	3581	if (w->wd >= 0)
…		…
3057	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3648	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3058	ofs += sizeof (struct inotify_event) + ev->len;	3649	ofs += sizeof (struct inotify_event) + ev->len;
3059	}	3650	}
3060	}	3651	}
3061		3652
3062	inline_size unsigned int
3063	ev_linux_version (void)
3064	{
3065	struct utsname buf;
3066	unsigned int v;
3067	int i;
3068	char *p = buf.release;
3069
3070	if (uname (&buf))
3071	return 0;
3072
3073	for (i = 3+1; --i; )
3074	{
3075	unsigned int c = 0;
3076
3077	for (;;)
3078	{
3079	if (*p >= '0' && *p <= '9')
3080	c = c * 10 + *p++ - '0';
3081	else
3082	{
3083	p += *p == '.';
3084	break;
3085	}
3086	}
3087
3088	v = (v << 8) | c;
3089	}
3090
3091	return v;
3092	}
3093
3094	inline_size void	3653	inline_size void ecb_cold
3095	ev_check_2625 (EV_P)	3654	ev_check_2625 (EV_P)
3096	{	3655	{
3097	/* kernels < 2.6.25 are borked	3656	/* kernels < 2.6.25 are borked
3098	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3657	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3099	*/	3658	*/
…		…
3420		3979
3421	#if EV_EMBED_ENABLE	3980	#if EV_EMBED_ENABLE
3422	void noinline	3981	void noinline
3423	ev_embed_sweep (EV_P_ ev_embed *w)	3982	ev_embed_sweep (EV_P_ ev_embed *w)
3424	{	3983	{
3425	ev_loop (w->other, EVLOOP_NONBLOCK);	3984	ev_run (w->other, EVRUN_NOWAIT);
3426	}	3985	}
3427		3986
3428	static void	3987	static void
3429	embed_io_cb (EV_P_ ev_io *io, int revents)	3988	embed_io_cb (EV_P_ ev_io *io, int revents)
3430	{	3989	{
3431	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3990	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3432		3991
3433	if (ev_cb (w))	3992	if (ev_cb (w))
3434	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3993	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3435	else	3994	else
3436	ev_loop (w->other, EVLOOP_NONBLOCK);	3995	ev_run (w->other, EVRUN_NOWAIT);
3437	}	3996	}
3438		3997
3439	static void	3998	static void
3440	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3999	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3441	{	4000	{
…		…
3445	EV_P = w->other;	4004	EV_P = w->other;
3446		4005
3447	while (fdchangecnt)	4006	while (fdchangecnt)
3448	{	4007	{
3449	fd_reify (EV_A);	4008	fd_reify (EV_A);
3450	ev_loop (EV_A_ EVLOOP_NONBLOCK);	4009	ev_run (EV_A_ EVRUN_NOWAIT);
3451	}	4010	}
3452	}	4011	}
3453	}	4012	}
3454		4013
3455	static void	4014	static void
…		…
3461		4020
3462	{	4021	{
3463	EV_P = w->other;	4022	EV_P = w->other;
3464		4023
3465	ev_loop_fork (EV_A);	4024	ev_loop_fork (EV_A);
3466	ev_loop (EV_A_ EVLOOP_NONBLOCK);	4025	ev_run (EV_A_ EVRUN_NOWAIT);
3467	}	4026	}
3468		4027
3469	ev_embed_start (EV_A_ w);	4028	ev_embed_start (EV_A_ w);
3470	}	4029	}
3471		4030
…		…
3563		4122
3564	EV_FREQUENT_CHECK;	4123	EV_FREQUENT_CHECK;
3565	}	4124	}
3566	#endif	4125	#endif
3567		4126
		4127	#if EV_CLEANUP_ENABLE
		4128	void
		4129	ev_cleanup_start (EV_P_ ev_cleanup *w)
		4130	{
		4131	if (expect_false (ev_is_active (w)))
		4132	return;
		4133
		4134	EV_FREQUENT_CHECK;
		4135
		4136	ev_start (EV_A_ (W)w, ++cleanupcnt);
		4137	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		4138	cleanups [cleanupcnt - 1] = w;
		4139
		4140	/* cleanup watchers should never keep a refcount on the loop */
		4141	ev_unref (EV_A);
		4142	EV_FREQUENT_CHECK;
		4143	}
		4144
		4145	void
		4146	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		4147	{
		4148	clear_pending (EV_A_ (W)w);
		4149	if (expect_false (!ev_is_active (w)))
		4150	return;
		4151
		4152	EV_FREQUENT_CHECK;
		4153	ev_ref (EV_A);
		4154
		4155	{
		4156	int active = ev_active (w);
		4157
		4158	cleanups [active - 1] = cleanups [--cleanupcnt];
		4159	ev_active (cleanups [active - 1]) = active;
		4160	}
		4161
		4162	ev_stop (EV_A_ (W)w);
		4163
		4164	EV_FREQUENT_CHECK;
		4165	}
		4166	#endif
		4167
3568	#if EV_ASYNC_ENABLE	4168	#if EV_ASYNC_ENABLE
3569	void	4169	void
3570	ev_async_start (EV_P_ ev_async *w)	4170	ev_async_start (EV_P_ ev_async *w)
3571	{	4171	{
3572	if (expect_false (ev_is_active (w)))	4172	if (expect_false (ev_is_active (w)))
3573	return;	4173	return;
		4174
		4175	w->sent = 0;
3574		4176
3575	evpipe_init (EV_A);	4177	evpipe_init (EV_A);
3576		4178
3577	EV_FREQUENT_CHECK;	4179	EV_FREQUENT_CHECK;
3578		4180
…		…
3681	}	4283	}
3682		4284
3683	/*****************************************************************************/	4285	/*****************************************************************************/
3684		4286
3685	#if EV_WALK_ENABLE	4287	#if EV_WALK_ENABLE
3686	void	4288	void ecb_cold
3687	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4289	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3688	{	4290	{
3689	int i, j;	4291	int i, j;
3690	ev_watcher_list *wl, *wn;	4292	ev_watcher_list *wl, *wn;
3691		4293
…		…
3735	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4337	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3736	#endif	4338	#endif
3737		4339
3738	#if EV_IDLE_ENABLE	4340	#if EV_IDLE_ENABLE
3739	if (types & EV_IDLE)	4341	if (types & EV_IDLE)
3740	for (j = NUMPRI; i--; )	4342	for (j = NUMPRI; j--; )
3741	for (i = idlecnt [j]; i--; )	4343	for (i = idlecnt [j]; i--; )
3742	cb (EV_A_ EV_IDLE, idles [j][i]);	4344	cb (EV_A_ EV_IDLE, idles [j][i]);
3743	#endif	4345	#endif
3744		4346
3745	#if EV_FORK_ENABLE	4347	#if EV_FORK_ENABLE
…		…
3798		4400
3799	#if EV_MULTIPLICITY	4401	#if EV_MULTIPLICITY
3800	#include "ev_wrap.h"	4402	#include "ev_wrap.h"
3801	#endif	4403	#endif
3802		4404
3803	#ifdef __cplusplus	4405	EV_CPP(})
3804	}
3805	#endif
3806		4406

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