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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 1.392 by root, Thu Aug 4 14:37:49 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	#define ECB_MEMORY_FENCE_ACQUIRE do { } while (0)
		544	#define ECB_MEMORY_FENCE_RELEASE do { } while (0)
		545	#endif
		546
		547	#ifndef ECB_MEMORY_FENCE
		548	#if ECB_GCC_VERSION(2,5)
		549	#if __x86
		550	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		551	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
		552	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		553	#elif __amd64
		554	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		555	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		556	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		557	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		558	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		559	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
		560	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \
		561	|| defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
		562	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
		563	#define ECB_MEMORY_FENCE \
		564	do { \
		565	int null = 0; \
		566	__asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \
		567	while (0)
		568	#endif
		569	#endif
		570	#endif
		571
		572	#ifndef ECB_MEMORY_FENCE
		573	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER)
		574	#define ECB_MEMORY_FENCE __sync_synchronize ()
		575	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
		576	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
		577	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		578	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		579	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		580	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		581	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		582	#elif defined(_WIN32)
		583	#include <WinNT.h>
		584	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		585	#endif
		586	#endif
		587
		588	#ifndef ECB_MEMORY_FENCE
		589	#if !ECB_AVOID_PTHREADS
		590	/*
		591	* if you get undefined symbol references to pthread_mutex_lock,
		592	* or failure to find pthread.h, then you should implement
		593	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		594	* OR provide pthread.h and link against the posix thread library
		595	* of your system.
		596	*/
		597	#include <pthread.h>
		598	#define ECB_NEEDS_PTHREADS 1
		599	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		600
		601	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		602	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		603	#endif
		604	#endif
		605
		606	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
		607	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		608	#endif
		609
		610	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
		611	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		612	#endif
		613
		614	/*****************************************************************************/
		615
		616	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		617
		618	#if __cplusplus
		619	#define ecb_inline static inline
		620	#elif ECB_GCC_VERSION(2,5)
		621	#define ecb_inline static __inline__
		622	#elif ECB_C99
		623	#define ecb_inline static inline
		624	#else
		625	#define ecb_inline static
		626	#endif
		627
		628	#if ECB_GCC_VERSION(3,3)
		629	#define ecb_restrict __restrict__
		630	#elif ECB_C99
		631	#define ecb_restrict restrict
		632	#else
		633	#define ecb_restrict
		634	#endif
		635
		636	typedef int ecb_bool;
		637
		638	#define ECB_CONCAT_(a, b) a ## b
		639	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		640	#define ECB_STRINGIFY_(a) # a
		641	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		642
		643	#define ecb_function_ ecb_inline
		644
		645	#if ECB_GCC_VERSION(3,1)
		646	#define ecb_attribute(attrlist) __attribute__(attrlist)
		647	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		648	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		649	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		650	#else
		651	#define ecb_attribute(attrlist)
		652	#define ecb_is_constant(expr) 0
		653	#define ecb_expect(expr,value) (expr)
		654	#define ecb_prefetch(addr,rw,locality)
		655	#endif
		656
		657	/* no emulation for ecb_decltype */
		658	#if ECB_GCC_VERSION(4,5)
		659	#define ecb_decltype(x) __decltype(x)
		660	#elif ECB_GCC_VERSION(3,0)
		661	#define ecb_decltype(x) __typeof(x)
		662	#endif
		663
		664	#define ecb_noinline ecb_attribute ((__noinline__))
		665	#define ecb_noreturn ecb_attribute ((__noreturn__))
		666	#define ecb_unused ecb_attribute ((__unused__))
		667	#define ecb_const ecb_attribute ((__const__))
		668	#define ecb_pure ecb_attribute ((__pure__))
		669
		670	#if ECB_GCC_VERSION(4,3)
		671	#define ecb_artificial ecb_attribute ((__artificial__))
		672	#define ecb_hot ecb_attribute ((__hot__))
		673	#define ecb_cold ecb_attribute ((__cold__))
		674	#else
		675	#define ecb_artificial
		676	#define ecb_hot
		677	#define ecb_cold
		678	#endif
		679
		680	/* put around conditional expressions if you are very sure that the */
		681	/* expression is mostly true or mostly false. note that these return */
		682	/* booleans, not the expression. */
486	#define expect_false(expr) expect ((expr) != 0, 0)	683	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
487	#define expect_true(expr) expect ((expr) != 0, 1)	684	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		685	/* for compatibility to the rest of the world */
		686	#define ecb_likely(expr) ecb_expect_true (expr)
		687	#define ecb_unlikely(expr) ecb_expect_false (expr)
		688
		689	/* count trailing zero bits and count # of one bits */
		690	#if ECB_GCC_VERSION(3,4)
		691	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		692	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		693	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		694	#define ecb_ctz32(x) __builtin_ctz (x)
		695	#define ecb_ctz64(x) __builtin_ctzll (x)
		696	#define ecb_popcount32(x) __builtin_popcount (x)
		697	/* no popcountll */
		698	#else
		699	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		700	ecb_function_ int
		701	ecb_ctz32 (uint32_t x)
		702	{
		703	int r = 0;
		704
		705	x &= ~x + 1; /* this isolates the lowest bit */
		706
		707	#if ECB_branchless_on_i386
		708	r += !!(x & 0xaaaaaaaa) << 0;
		709	r += !!(x & 0xcccccccc) << 1;
		710	r += !!(x & 0xf0f0f0f0) << 2;
		711	r += !!(x & 0xff00ff00) << 3;
		712	r += !!(x & 0xffff0000) << 4;
		713	#else
		714	if (x & 0xaaaaaaaa) r += 1;
		715	if (x & 0xcccccccc) r += 2;
		716	if (x & 0xf0f0f0f0) r += 4;
		717	if (x & 0xff00ff00) r += 8;
		718	if (x & 0xffff0000) r += 16;
		719	#endif
		720
		721	return r;
		722	}
		723
		724	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		725	ecb_function_ int
		726	ecb_ctz64 (uint64_t x)
		727	{
		728	int shift = x & 0xffffffffU ? 0 : 32;
		729	return ecb_ctz32 (x >> shift) + shift;
		730	}
		731
		732	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		733	ecb_function_ int
		734	ecb_popcount32 (uint32_t x)
		735	{
		736	x -= (x >> 1) & 0x55555555;
		737	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		738	x = ((x >> 4) + x) & 0x0f0f0f0f;
		739	x *= 0x01010101;
		740
		741	return x >> 24;
		742	}
		743
		744	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		745	ecb_function_ int ecb_ld32 (uint32_t x)
		746	{
		747	int r = 0;
		748
		749	if (x >> 16) { x >>= 16; r += 16; }
		750	if (x >> 8) { x >>= 8; r += 8; }
		751	if (x >> 4) { x >>= 4; r += 4; }
		752	if (x >> 2) { x >>= 2; r += 2; }
		753	if (x >> 1) { r += 1; }
		754
		755	return r;
		756	}
		757
		758	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		759	ecb_function_ int ecb_ld64 (uint64_t x)
		760	{
		761	int r = 0;
		762
		763	if (x >> 32) { x >>= 32; r += 32; }
		764
		765	return r + ecb_ld32 (x);
		766	}
		767	#endif
		768
		769	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		770	/* so for this version we are lazy */
		771	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		772	ecb_function_ int
		773	ecb_popcount64 (uint64_t x)
		774	{
		775	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		776	}
		777
		778	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		779	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		780	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		781	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		782	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		783	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		784	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		785	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		786
		787	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		788	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		789	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		790	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		791	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		792	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		793	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		794	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		795
		796	#if ECB_GCC_VERSION(4,3)
		797	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		798	#define ecb_bswap32(x) __builtin_bswap32 (x)
		799	#define ecb_bswap64(x) __builtin_bswap64 (x)
		800	#else
		801	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		802	ecb_function_ uint16_t
		803	ecb_bswap16 (uint16_t x)
		804	{
		805	return ecb_rotl16 (x, 8);
		806	}
		807
		808	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		809	ecb_function_ uint32_t
		810	ecb_bswap32 (uint32_t x)
		811	{
		812	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		813	}
		814
		815	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		816	ecb_function_ uint64_t
		817	ecb_bswap64 (uint64_t x)
		818	{
		819	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		820	}
		821	#endif
		822
		823	#if ECB_GCC_VERSION(4,5)
		824	#define ecb_unreachable() __builtin_unreachable ()
		825	#else
		826	/* this seems to work fine, but gcc always emits a warning for it :/ */
		827	ecb_function_ void ecb_unreachable (void) ecb_noreturn;
		828	ecb_function_ void ecb_unreachable (void) { }
		829	#endif
		830
		831	/* try to tell the compiler that some condition is definitely true */
		832	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		833
		834	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
		835	ecb_function_ unsigned char
		836	ecb_byteorder_helper (void)
		837	{
		838	const uint32_t u = 0x11223344;
		839	return *(unsigned char *)&u;
		840	}
		841
		842	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
		843	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		844	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
		845	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		846
		847	#if ECB_GCC_VERSION(3,0) || ECB_C99
		848	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		849	#else
		850	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		851	#endif
		852
		853	#if ecb_cplusplus_does_not_suck
		854	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		855	template<typename T, int N>
		856	static inline int ecb_array_length (const T (&arr)[N])
		857	{
		858	return N;
		859	}
		860	#else
		861	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		862	#endif
		863
		864	#endif
		865
		866	/* ECB.H END */
		867
		868	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		869	# undef ECB_MEMORY_FENCE
		870	# undef ECB_MEMORY_FENCE_ACQUIRE
		871	# undef ECB_MEMORY_FENCE_RELEASE
		872	#endif
		873
		874	#define expect_false(cond) ecb_expect_false (cond)
		875	#define expect_true(cond) ecb_expect_true (cond)
		876	#define noinline ecb_noinline
		877
488	#define inline_size static inline	878	#define inline_size ecb_inline
489		879
490	#if EV_FEATURE_CODE	880	#if EV_FEATURE_CODE
491	# define inline_speed static inline	881	# define inline_speed ecb_inline
492	#else	882	#else
493	# define inline_speed static noinline	883	# define inline_speed static noinline
494	#endif	884	#endif
495		885
496	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	886	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
535	# include "ev_win32.c"	925	# include "ev_win32.c"
536	#endif	926	#endif
537		927
538	/*****************************************************************************/	928	/*****************************************************************************/
539		929
		930	/* define a suitable floor function (only used by periodics atm) */
		931
		932	#if EV_USE_FLOOR
		933	# include <math.h>
		934	# define ev_floor(v) floor (v)
		935	#else
		936
		937	#include <float.h>
		938
		939	/* a floor() replacement function, should be independent of ev_tstamp type */
		940	static ev_tstamp noinline
		941	ev_floor (ev_tstamp v)
		942	{
		943	/* the choice of shift factor is not terribly important */
		944	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
		945	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
		946	#else
		947	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
		948	#endif
		949
		950	/* argument too large for an unsigned long? */
		951	if (expect_false (v >= shift))
		952	{
		953	ev_tstamp f;
		954
		955	if (v == v - 1.)
		956	return v; /* very large number */
		957
		958	f = shift * ev_floor (v * (1. / shift));
		959	return f + ev_floor (v - f);
		960	}
		961
		962	/* special treatment for negative args? */
		963	if (expect_false (v < 0.))
		964	{
		965	ev_tstamp f = -ev_floor (-v);
		966
		967	return f - (f == v ? 0 : 1);
		968	}
		969
		970	/* fits into an unsigned long */
		971	return (unsigned long)v;
		972	}
		973
		974	#endif
		975
		976	/*****************************************************************************/
		977
		978	#ifdef __linux
		979	# include <sys/utsname.h>
		980	#endif
		981
		982	static unsigned int noinline ecb_cold
		983	ev_linux_version (void)
		984	{
		985	#ifdef __linux
		986	unsigned int v = 0;
		987	struct utsname buf;
		988	int i;
		989	char *p = buf.release;
		990
		991	if (uname (&buf))
		992	return 0;
		993
		994	for (i = 3+1; --i; )
		995	{
		996	unsigned int c = 0;
		997
		998	for (;;)
		999	{
		1000	if (*p >= '0' && *p <= '9')
		1001	c = c * 10 + *p++ - '0';
		1002	else
		1003	{
		1004	p += *p == '.';
		1005	break;
		1006	}
		1007	}
		1008
		1009	v = (v << 8) | c;
		1010	}
		1011
		1012	return v;
		1013	#else
		1014	return 0;
		1015	#endif
		1016	}
		1017
		1018	/*****************************************************************************/
		1019
540	#if EV_AVOID_STDIO	1020	#if EV_AVOID_STDIO
541	static void noinline	1021	static void noinline ecb_cold
542	ev_printerr (const char *msg)	1022	ev_printerr (const char *msg)
543	{	1023	{
544	write (STDERR_FILENO, msg, strlen (msg));	1024	write (STDERR_FILENO, msg, strlen (msg));
545	}	1025	}
546	#endif	1026	#endif
547		1027
548	static void (*syserr_cb)(const char *msg);	1028	static void (*syserr_cb)(const char *msg);
549		1029
550	void	1030	void ecb_cold
551	ev_set_syserr_cb (void (*cb)(const char *msg))	1031	ev_set_syserr_cb (void (*cb)(const char *msg))
552	{	1032	{
553	syserr_cb = cb;	1033	syserr_cb = cb;
554	}	1034	}
555		1035
556	static void noinline	1036	static void noinline ecb_cold
557	ev_syserr (const char *msg)	1037	ev_syserr (const char *msg)
558	{	1038	{
559	if (!msg)	1039	if (!msg)
560	msg = "(libev) system error";	1040	msg = "(libev) system error";
561		1041
562	if (syserr_cb)	1042	if (syserr_cb)
563	syserr_cb (msg);	1043	syserr_cb (msg);
564	else	1044	else
565	{	1045	{
566	#if EV_AVOID_STDIO	1046	#if EV_AVOID_STDIO
567	const char *err = strerror (errno);
568
569	ev_printerr (msg);	1047	ev_printerr (msg);
570	ev_printerr (": ");	1048	ev_printerr (": ");
571	ev_printerr (err);	1049	ev_printerr (strerror (errno));
572	ev_printerr ("\n");	1050	ev_printerr ("\n");
573	#else	1051	#else
574	perror (msg);	1052	perror (msg);
575	#endif	1053	#endif
576	abort ();	1054	abort ();
…		…
596	#endif	1074	#endif
597	}	1075	}
598		1076
599	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1077	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
600		1078
601	void	1079	void ecb_cold
602	ev_set_allocator (void *(*cb)(void *ptr, long size))	1080	ev_set_allocator (void *(*cb)(void *ptr, long size))
603	{	1081	{
604	alloc = cb;	1082	alloc = cb;
605	}	1083	}
606		1084
…		…
610	ptr = alloc (ptr, size);	1088	ptr = alloc (ptr, size);
611		1089
612	if (!ptr && size)	1090	if (!ptr && size)
613	{	1091	{
614	#if EV_AVOID_STDIO	1092	#if EV_AVOID_STDIO
615	ev_printerr ("libev: memory allocation failed, aborting.\n");	1093	ev_printerr ("(libev) memory allocation failed, aborting.\n");
616	#else	1094	#else
617	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);	1095	fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
618	#endif	1096	#endif
619	abort ();	1097	abort ();
620	}	1098	}
621		1099
622	return ptr;	1100	return ptr;
…		…
639	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	1117	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
640	unsigned char unused;	1118	unsigned char unused;
641	#if EV_USE_EPOLL	1119	#if EV_USE_EPOLL
642	unsigned int egen; /* generation counter to counter epoll bugs */	1120	unsigned int egen; /* generation counter to counter epoll bugs */
643	#endif	1121	#endif
644	#if EV_SELECT_IS_WINSOCKET	1122	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
645	SOCKET handle;	1123	SOCKET handle;
		1124	#endif
		1125	#if EV_USE_IOCP
		1126	OVERLAPPED or, ow;
646	#endif	1127	#endif
647	} ANFD;	1128	} ANFD;
648		1129
649	/* stores the pending event set for a given watcher */	1130	/* stores the pending event set for a given watcher */
650	typedef struct	1131	typedef struct
…		…
715	# define EV_RELEASE_CB (void)0	1196	# define EV_RELEASE_CB (void)0
716	# define EV_ACQUIRE_CB (void)0	1197	# define EV_ACQUIRE_CB (void)0
717	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	1198	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
718	#endif	1199	#endif
719		1200
720	#define EVUNLOOP_RECURSE 0x80	1201	#define EVBREAK_RECURSE 0x80
721		1202
722	/*****************************************************************************/	1203	/*****************************************************************************/
723		1204
724	#ifndef EV_HAVE_EV_TIME	1205	#ifndef EV_HAVE_EV_TIME
725	ev_tstamp	1206	ev_tstamp
…		…
769	if (delay > 0.)	1250	if (delay > 0.)
770	{	1251	{
771	#if EV_USE_NANOSLEEP	1252	#if EV_USE_NANOSLEEP
772	struct timespec ts;	1253	struct timespec ts;
773		1254
774	ts.tv_sec = (time_t)delay;	1255	EV_TS_SET (ts, delay);
775	ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
776
777	nanosleep (&ts, 0);	1256	nanosleep (&ts, 0);
778	#elif defined(_WIN32)	1257	#elif defined(_WIN32)
779	Sleep ((unsigned long)(delay * 1e3));	1258	Sleep ((unsigned long)(delay * 1e3));
780	#else	1259	#else
781	struct timeval tv;	1260	struct timeval tv;
782		1261
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 */	1262	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
787	/* something not guaranteed by newer posix versions, but guaranteed */	1263	/* something not guaranteed by newer posix versions, but guaranteed */
788	/* by older ones */	1264	/* by older ones */
		1265	EV_TV_SET (tv, delay);
789	select (0, 0, 0, 0, &tv);	1266	select (0, 0, 0, 0, &tv);
790	#endif	1267	#endif
791	}	1268	}
792	}	1269	}
793		1270
…		…
816	}	1293	}
817		1294
818	return ncur;	1295	return ncur;
819	}	1296	}
820		1297
821	static noinline void *	1298	static void * noinline ecb_cold
822	array_realloc (int elem, void *base, int *cur, int cnt)	1299	array_realloc (int elem, void *base, int *cur, int cnt)
823	{	1300	{
824	*cur = array_nextsize (elem, *cur, cnt);	1301	*cur = array_nextsize (elem, *cur, cnt);
825	return ev_realloc (base, elem * *cur);	1302	return ev_realloc (base, elem * *cur);
826	}	1303	}
…		…
829	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1306	memset ((void *)(base), 0, sizeof (*(base)) * (count))
830		1307
831	#define array_needsize(type,base,cur,cnt,init) \	1308	#define array_needsize(type,base,cur,cnt,init) \
832	if (expect_false ((cnt) > (cur))) \	1309	if (expect_false ((cnt) > (cur))) \
833	{ \	1310	{ \
834	int ocur_ = (cur); \	1311	int ecb_unused ocur_ = (cur); \
835	(base) = (type *)array_realloc \	1312	(base) = (type *)array_realloc \
836	(sizeof (type), (base), &(cur), (cnt)); \	1313	(sizeof (type), (base), &(cur), (cnt)); \
837	init ((base) + (ocur_), (cur) - ocur_); \	1314	init ((base) + (ocur_), (cur) - ocur_); \
838	}	1315	}
839		1316
…		…
939	inline_size void	1416	inline_size void
940	fd_reify (EV_P)	1417	fd_reify (EV_P)
941	{	1418	{
942	int i;	1419	int i;
943		1420
		1421	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
		1422	for (i = 0; i < fdchangecnt; ++i)
		1423	{
		1424	int fd = fdchanges [i];
		1425	ANFD *anfd = anfds + fd;
		1426
		1427	if (anfd->reify & EV__IOFDSET && anfd->head)
		1428	{
		1429	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
		1430
		1431	if (handle != anfd->handle)
		1432	{
		1433	unsigned long arg;
		1434
		1435	assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
		1436
		1437	/* handle changed, but fd didn't - we need to do it in two steps */
		1438	backend_modify (EV_A_ fd, anfd->events, 0);
		1439	anfd->events = 0;
		1440	anfd->handle = handle;
		1441	}
		1442	}
		1443	}
		1444	#endif
		1445
944	for (i = 0; i < fdchangecnt; ++i)	1446	for (i = 0; i < fdchangecnt; ++i)
945	{	1447	{
946	int fd = fdchanges [i];	1448	int fd = fdchanges [i];
947	ANFD *anfd = anfds + fd;	1449	ANFD *anfd = anfds + fd;
948	ev_io *w;	1450	ev_io *w;
949		1451
950	unsigned char events = 0;	1452	unsigned char o_events = anfd->events;
		1453	unsigned char o_reify = anfd->reify;
951		1454
952	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	1455	anfd->reify = 0;
953	events |= (unsigned char)w->events;
954		1456
955	#if EV_SELECT_IS_WINSOCKET	1457	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
956	if (events)
957	{	1458	{
958	unsigned long arg;	1459	anfd->events = 0;
959	anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);	1460
960	assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));	1461	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
		1462	anfd->events |= (unsigned char)w->events;
		1463
		1464	if (o_events != anfd->events)
		1465	o_reify = EV__IOFDSET; /* actually |= */
961	}	1466	}
962	#endif
963		1467
964	{	1468	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);	1469	backend_modify (EV_A_ fd, o_events, anfd->events);
973	}
974	}	1470	}
975		1471
976	fdchangecnt = 0;	1472	fdchangecnt = 0;
977	}	1473	}
978		1474
…		…
990	fdchanges [fdchangecnt - 1] = fd;	1486	fdchanges [fdchangecnt - 1] = fd;
991	}	1487	}
992	}	1488	}
993		1489
994	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1490	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
995	inline_speed void	1491	inline_speed void ecb_cold
996	fd_kill (EV_P_ int fd)	1492	fd_kill (EV_P_ int fd)
997	{	1493	{
998	ev_io *w;	1494	ev_io *w;
999		1495
1000	while ((w = (ev_io *)anfds [fd].head))	1496	while ((w = (ev_io *)anfds [fd].head))
…		…
1003	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1499	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1004	}	1500	}
1005	}	1501	}
1006		1502
1007	/* check whether the given fd is actually valid, for error recovery */	1503	/* check whether the given fd is actually valid, for error recovery */
1008	inline_size int	1504	inline_size int ecb_cold
1009	fd_valid (int fd)	1505	fd_valid (int fd)
1010	{	1506	{
1011	#ifdef _WIN32	1507	#ifdef _WIN32
1012	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1508	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1013	#else	1509	#else
1014	return fcntl (fd, F_GETFD) != -1;	1510	return fcntl (fd, F_GETFD) != -1;
1015	#endif	1511	#endif
1016	}	1512	}
1017		1513
1018	/* called on EBADF to verify fds */	1514	/* called on EBADF to verify fds */
1019	static void noinline	1515	static void noinline ecb_cold
1020	fd_ebadf (EV_P)	1516	fd_ebadf (EV_P)
1021	{	1517	{
1022	int fd;	1518	int fd;
1023		1519
1024	for (fd = 0; fd < anfdmax; ++fd)	1520	for (fd = 0; fd < anfdmax; ++fd)
…		…
1026	if (!fd_valid (fd) && errno == EBADF)	1522	if (!fd_valid (fd) && errno == EBADF)
1027	fd_kill (EV_A_ fd);	1523	fd_kill (EV_A_ fd);
1028	}	1524	}
1029		1525
1030	/* called on ENOMEM in select/poll to kill some fds and retry */	1526	/* called on ENOMEM in select/poll to kill some fds and retry */
1031	static void noinline	1527	static void noinline ecb_cold
1032	fd_enomem (EV_P)	1528	fd_enomem (EV_P)
1033	{	1529	{
1034	int fd;	1530	int fd;
1035		1531
1036	for (fd = anfdmax; fd--; )	1532	for (fd = anfdmax; fd--; )
…		…
1231		1727
1232	/*****************************************************************************/	1728	/*****************************************************************************/
1233		1729
1234	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	1730	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1235		1731
1236	static void noinline	1732	static void noinline ecb_cold
1237	evpipe_init (EV_P)	1733	evpipe_init (EV_P)
1238	{	1734	{
1239	if (!ev_is_active (&pipe_w))	1735	if (!ev_is_active (&pipe_w))
1240	{	1736	{
1241	# if EV_USE_EVENTFD	1737	# if EV_USE_EVENTFD
…		…
1263	ev_io_start (EV_A_ &pipe_w);	1759	ev_io_start (EV_A_ &pipe_w);
1264	ev_unref (EV_A); /* watcher should not keep loop alive */	1760	ev_unref (EV_A); /* watcher should not keep loop alive */
1265	}	1761	}
1266	}	1762	}
1267		1763
1268	inline_size void	1764	inline_speed void
1269	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1765	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1270	{	1766	{
1271	if (!*flag)	1767	if (expect_true (*flag))
		1768	return;
		1769
		1770	*flag = 1;
		1771
		1772	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1773
		1774	pipe_write_skipped = 1;
		1775
		1776	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1777
		1778	if (pipe_write_wanted)
1272	{	1779	{
		1780	int old_errno;
		1781
		1782	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1783
1273	int old_errno = errno; /* save errno because write might clobber it */	1784	old_errno = errno; /* save errno because write will clobber it */
1274	char dummy;
1275
1276	*flag = 1;
1277		1785
1278	#if EV_USE_EVENTFD	1786	#if EV_USE_EVENTFD
1279	if (evfd >= 0)	1787	if (evfd >= 0)
1280	{	1788	{
1281	uint64_t counter = 1;	1789	uint64_t counter = 1;
1282	write (evfd, &counter, sizeof (uint64_t));	1790	write (evfd, &counter, sizeof (uint64_t));
1283	}	1791	}
1284	else	1792	else
1285	#endif	1793	#endif
		1794	{
		1795	/* win32 people keep sending patches that change this write() to send() */
		1796	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1797	/* so when you think this write should be a send instead, please find out */
		1798	/* where your send() is from - it's definitely not the microsoft send, and */
		1799	/* tell me. thank you. */
1286	write (evpipe [1], &dummy, 1);	1800	write (evpipe [1], &(evpipe [1]), 1);
		1801	}
1287		1802
1288	errno = old_errno;	1803	errno = old_errno;
1289	}	1804	}
1290	}	1805	}
1291		1806
…		…
1294	static void	1809	static void
1295	pipecb (EV_P_ ev_io *iow, int revents)	1810	pipecb (EV_P_ ev_io *iow, int revents)
1296	{	1811	{
1297	int i;	1812	int i;
1298		1813
		1814	if (revents & EV_READ)
		1815	{
1299	#if EV_USE_EVENTFD	1816	#if EV_USE_EVENTFD
1300	if (evfd >= 0)	1817	if (evfd >= 0)
1301	{	1818	{
1302	uint64_t counter;	1819	uint64_t counter;
1303	read (evfd, &counter, sizeof (uint64_t));	1820	read (evfd, &counter, sizeof (uint64_t));
1304	}	1821	}
1305	else	1822	else
1306	#endif	1823	#endif
1307	{	1824	{
1308	char dummy;	1825	char dummy;
		1826	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1309	read (evpipe [0], &dummy, 1);	1827	read (evpipe [0], &dummy, 1);
		1828	}
1310	}	1829	}
1311		1830
		1831	pipe_write_skipped = 0;
		1832
		1833	#if EV_SIGNAL_ENABLE
1312	if (sig_pending)	1834	if (sig_pending)
1313	{	1835	{
1314	sig_pending = 0;	1836	sig_pending = 0;
1315		1837
1316	for (i = EV_NSIG - 1; i--; )	1838	for (i = EV_NSIG - 1; i--; )
1317	if (expect_false (signals [i].pending))	1839	if (expect_false (signals [i].pending))
1318	ev_feed_signal_event (EV_A_ i + 1);	1840	ev_feed_signal_event (EV_A_ i + 1);
1319	}	1841	}
		1842	#endif
1320		1843
1321	#if EV_ASYNC_ENABLE	1844	#if EV_ASYNC_ENABLE
1322	if (async_pending)	1845	if (async_pending)
1323	{	1846	{
1324	async_pending = 0;	1847	async_pending = 0;
…		…
1333	#endif	1856	#endif
1334	}	1857	}
1335		1858
1336	/*****************************************************************************/	1859	/*****************************************************************************/
1337		1860
		1861	void
		1862	ev_feed_signal (int signum)
		1863	{
		1864	#if EV_MULTIPLICITY
		1865	EV_P = signals [signum - 1].loop;
		1866
		1867	if (!EV_A)
		1868	return;
		1869	#endif
		1870
		1871	if (!ev_active (&pipe_w))
		1872	return;
		1873
		1874	signals [signum - 1].pending = 1;
		1875	evpipe_write (EV_A_ &sig_pending);
		1876	}
		1877
1338	static void	1878	static void
1339	ev_sighandler (int signum)	1879	ev_sighandler (int signum)
1340	{	1880	{
1341	#if EV_MULTIPLICITY
1342	EV_P = signals [signum - 1].loop;
1343	#endif
1344
1345	#ifdef _WIN32	1881	#ifdef _WIN32
1346	signal (signum, ev_sighandler);	1882	signal (signum, ev_sighandler);
1347	#endif	1883	#endif
1348		1884
1349	signals [signum - 1].pending = 1;	1885	ev_feed_signal (signum);
1350	evpipe_write (EV_A_ &sig_pending);
1351	}	1886	}
1352		1887
1353	void noinline	1888	void noinline
1354	ev_feed_signal_event (EV_P_ int signum)	1889	ev_feed_signal_event (EV_P_ int signum)
1355	{	1890	{
…		…
1455		1990
1456	#endif	1991	#endif
1457		1992
1458	/*****************************************************************************/	1993	/*****************************************************************************/
1459		1994
		1995	#if EV_USE_IOCP
		1996	# include "ev_iocp.c"
		1997	#endif
1460	#if EV_USE_PORT	1998	#if EV_USE_PORT
1461	# include "ev_port.c"	1999	# include "ev_port.c"
1462	#endif	2000	#endif
1463	#if EV_USE_KQUEUE	2001	#if EV_USE_KQUEUE
1464	# include "ev_kqueue.c"	2002	# include "ev_kqueue.c"
…		…
1471	#endif	2009	#endif
1472	#if EV_USE_SELECT	2010	#if EV_USE_SELECT
1473	# include "ev_select.c"	2011	# include "ev_select.c"
1474	#endif	2012	#endif
1475		2013
1476	int	2014	int ecb_cold
1477	ev_version_major (void)	2015	ev_version_major (void)
1478	{	2016	{
1479	return EV_VERSION_MAJOR;	2017	return EV_VERSION_MAJOR;
1480	}	2018	}
1481		2019
1482	int	2020	int ecb_cold
1483	ev_version_minor (void)	2021	ev_version_minor (void)
1484	{	2022	{
1485	return EV_VERSION_MINOR;	2023	return EV_VERSION_MINOR;
1486	}	2024	}
1487		2025
1488	/* return true if we are running with elevated privileges and should ignore env variables */	2026	/* return true if we are running with elevated privileges and should ignore env variables */
1489	int inline_size	2027	int inline_size ecb_cold
1490	enable_secure (void)	2028	enable_secure (void)
1491	{	2029	{
1492	#ifdef _WIN32	2030	#ifdef _WIN32
1493	return 0;	2031	return 0;
1494	#else	2032	#else
1495	return getuid () != geteuid ()	2033	return getuid () != geteuid ()
1496	|| getgid () != getegid ();	2034	|| getgid () != getegid ();
1497	#endif	2035	#endif
1498	}	2036	}
1499		2037
1500	unsigned int	2038	unsigned int ecb_cold
1501	ev_supported_backends (void)	2039	ev_supported_backends (void)
1502	{	2040	{
1503	unsigned int flags = 0;	2041	unsigned int flags = 0;
1504		2042
1505	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2043	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
…		…
1509	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2047	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1510		2048
1511	return flags;	2049	return flags;
1512	}	2050	}
1513		2051
1514	unsigned int	2052	unsigned int ecb_cold
1515	ev_recommended_backends (void)	2053	ev_recommended_backends (void)
1516	{	2054	{
1517	unsigned int flags = ev_supported_backends ();	2055	unsigned int flags = ev_supported_backends ();
1518		2056
1519	#ifndef __NetBSD__	2057	#ifndef __NetBSD__
…		…
1531	#endif	2069	#endif
1532		2070
1533	return flags;	2071	return flags;
1534	}	2072	}
1535		2073
1536	unsigned int	2074	unsigned int ecb_cold
1537	ev_embeddable_backends (void)	2075	ev_embeddable_backends (void)
1538	{	2076	{
1539	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2077	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1540		2078
1541	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2079	/* 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 */	2080	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1543	flags &= ~EVBACKEND_EPOLL;	2081	flags &= ~EVBACKEND_EPOLL;
1544		2082
1545	return flags;	2083	return flags;
1546	}	2084	}
1547		2085
1548	unsigned int	2086	unsigned int
…		…
1586	ev_userdata (EV_P)	2124	ev_userdata (EV_P)
1587	{	2125	{
1588	return userdata;	2126	return userdata;
1589	}	2127	}
1590		2128
		2129	void
1591	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2130	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1592	{	2131	{
1593	invoke_cb = invoke_pending_cb;	2132	invoke_cb = invoke_pending_cb;
1594	}	2133	}
1595		2134
		2135	void
1596	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2136	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1597	{	2137	{
1598	release_cb = release;	2138	release_cb = release;
1599	acquire_cb = acquire;	2139	acquire_cb = acquire;
1600	}	2140	}
1601	#endif	2141	#endif
1602		2142
1603	/* initialise a loop structure, must be zero-initialised */	2143	/* initialise a loop structure, must be zero-initialised */
1604	static void noinline	2144	static void noinline ecb_cold
1605	loop_init (EV_P_ unsigned int flags)	2145	loop_init (EV_P_ unsigned int flags)
1606	{	2146	{
1607	if (!backend)	2147	if (!backend)
1608	{	2148	{
		2149	origflags = flags;
		2150
1609	#if EV_USE_REALTIME	2151	#if EV_USE_REALTIME
1610	if (!have_realtime)	2152	if (!have_realtime)
1611	{	2153	{
1612	struct timespec ts;	2154	struct timespec ts;
1613		2155
…		…
1635	if (!(flags & EVFLAG_NOENV)	2177	if (!(flags & EVFLAG_NOENV)
1636	&& !enable_secure ()	2178	&& !enable_secure ()
1637	&& getenv ("LIBEV_FLAGS"))	2179	&& getenv ("LIBEV_FLAGS"))
1638	flags = atoi (getenv ("LIBEV_FLAGS"));	2180	flags = atoi (getenv ("LIBEV_FLAGS"));
1639		2181
1640	ev_rt_now = ev_time ();	2182	ev_rt_now = ev_time ();
1641	mn_now = get_clock ();	2183	mn_now = get_clock ();
1642	now_floor = mn_now;	2184	now_floor = mn_now;
1643	rtmn_diff = ev_rt_now - mn_now;	2185	rtmn_diff = ev_rt_now - mn_now;
1644	#if EV_FEATURE_API	2186	#if EV_FEATURE_API
1645	invoke_cb = ev_invoke_pending;	2187	invoke_cb = ev_invoke_pending;
1646	#endif	2188	#endif
1647		2189
1648	io_blocktime = 0.;	2190	io_blocktime = 0.;
1649	timeout_blocktime = 0.;	2191	timeout_blocktime = 0.;
1650	backend = 0;	2192	backend = 0;
1651	backend_fd = -1;	2193	backend_fd = -1;
1652	sig_pending = 0;	2194	sig_pending = 0;
1653	#if EV_ASYNC_ENABLE	2195	#if EV_ASYNC_ENABLE
1654	async_pending = 0;	2196	async_pending = 0;
1655	#endif	2197	#endif
		2198	pipe_write_skipped = 0;
		2199	pipe_write_wanted = 0;
1656	#if EV_USE_INOTIFY	2200	#if EV_USE_INOTIFY
1657	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2201	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1658	#endif	2202	#endif
1659	#if EV_USE_SIGNALFD	2203	#if EV_USE_SIGNALFD
1660	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2204	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1661	#endif	2205	#endif
1662		2206
1663	if (!(flags & 0x0000ffffU))	2207	if (!(flags & EVBACKEND_MASK))
1664	flags |= ev_recommended_backends ();	2208	flags |= ev_recommended_backends ();
1665		2209
		2210	#if EV_USE_IOCP
		2211	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
		2212	#endif
1666	#if EV_USE_PORT	2213	#if EV_USE_PORT
1667	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	2214	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1668	#endif	2215	#endif
1669	#if EV_USE_KQUEUE	2216	#if EV_USE_KQUEUE
1670	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	2217	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
…		…
1687	#endif	2234	#endif
1688	}	2235	}
1689	}	2236	}
1690		2237
1691	/* free up a loop structure */	2238	/* free up a loop structure */
1692	static void noinline	2239	void ecb_cold
1693	loop_destroy (EV_P)	2240	ev_loop_destroy (EV_P)
1694	{	2241	{
1695	int i;	2242	int i;
		2243
		2244	#if EV_MULTIPLICITY
		2245	/* mimic free (0) */
		2246	if (!EV_A)
		2247	return;
		2248	#endif
		2249
		2250	#if EV_CLEANUP_ENABLE
		2251	/* queue cleanup watchers (and execute them) */
		2252	if (expect_false (cleanupcnt))
		2253	{
		2254	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
		2255	EV_INVOKE_PENDING;
		2256	}
		2257	#endif
		2258
		2259	#if EV_CHILD_ENABLE
		2260	if (ev_is_active (&childev))
		2261	{
		2262	ev_ref (EV_A); /* child watcher */
		2263	ev_signal_stop (EV_A_ &childev);
		2264	}
		2265	#endif
1696		2266
1697	if (ev_is_active (&pipe_w))	2267	if (ev_is_active (&pipe_w))
1698	{	2268	{
1699	/*ev_ref (EV_A);*/	2269	/*ev_ref (EV_A);*/
1700	/*ev_io_stop (EV_A_ &pipe_w);*/	2270	/*ev_io_stop (EV_A_ &pipe_w);*/
…		…
1722	#endif	2292	#endif
1723		2293
1724	if (backend_fd >= 0)	2294	if (backend_fd >= 0)
1725	close (backend_fd);	2295	close (backend_fd);
1726		2296
		2297	#if EV_USE_IOCP
		2298	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
		2299	#endif
1727	#if EV_USE_PORT	2300	#if EV_USE_PORT
1728	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	2301	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1729	#endif	2302	#endif
1730	#if EV_USE_KQUEUE	2303	#if EV_USE_KQUEUE
1731	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	2304	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
…		…
1758	array_free (periodic, EMPTY);	2331	array_free (periodic, EMPTY);
1759	#endif	2332	#endif
1760	#if EV_FORK_ENABLE	2333	#if EV_FORK_ENABLE
1761	array_free (fork, EMPTY);	2334	array_free (fork, EMPTY);
1762	#endif	2335	#endif
		2336	#if EV_CLEANUP_ENABLE
		2337	array_free (cleanup, EMPTY);
		2338	#endif
1763	array_free (prepare, EMPTY);	2339	array_free (prepare, EMPTY);
1764	array_free (check, EMPTY);	2340	array_free (check, EMPTY);
1765	#if EV_ASYNC_ENABLE	2341	#if EV_ASYNC_ENABLE
1766	array_free (async, EMPTY);	2342	array_free (async, EMPTY);
1767	#endif	2343	#endif
1768		2344
1769	backend = 0;	2345	backend = 0;
		2346
		2347	#if EV_MULTIPLICITY
		2348	if (ev_is_default_loop (EV_A))
		2349	#endif
		2350	ev_default_loop_ptr = 0;
		2351	#if EV_MULTIPLICITY
		2352	else
		2353	ev_free (EV_A);
		2354	#endif
1770	}	2355	}
1771		2356
1772	#if EV_USE_INOTIFY	2357	#if EV_USE_INOTIFY
1773	inline_size void infy_fork (EV_P);	2358	inline_size void infy_fork (EV_P);
1774	#endif	2359	#endif
…		…
1789	infy_fork (EV_A);	2374	infy_fork (EV_A);
1790	#endif	2375	#endif
1791		2376
1792	if (ev_is_active (&pipe_w))	2377	if (ev_is_active (&pipe_w))
1793	{	2378	{
1794	/* this "locks" the handlers against writing to the pipe */	2379	/* 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		2380
1801	ev_ref (EV_A);	2381	ev_ref (EV_A);
1802	ev_io_stop (EV_A_ &pipe_w);	2382	ev_io_stop (EV_A_ &pipe_w);
1803		2383
1804	#if EV_USE_EVENTFD	2384	#if EV_USE_EVENTFD
…		…
1822	postfork = 0;	2402	postfork = 0;
1823	}	2403	}
1824		2404
1825	#if EV_MULTIPLICITY	2405	#if EV_MULTIPLICITY
1826		2406
1827	struct ev_loop *	2407	struct ev_loop * ecb_cold
1828	ev_loop_new (unsigned int flags)	2408	ev_loop_new (unsigned int flags)
1829	{	2409	{
1830	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2410	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1831		2411
1832	memset (EV_A, 0, sizeof (struct ev_loop));	2412	memset (EV_A, 0, sizeof (struct ev_loop));
1833	loop_init (EV_A_ flags);	2413	loop_init (EV_A_ flags);
1834		2414
1835	if (ev_backend (EV_A))	2415	if (ev_backend (EV_A))
1836	return EV_A;	2416	return EV_A;
1837		2417
		2418	ev_free (EV_A);
1838	return 0;	2419	return 0;
1839	}	2420	}
1840		2421
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 */	2422	#endif /* multiplicity */
1854		2423
1855	#if EV_VERIFY	2424	#if EV_VERIFY
1856	static void noinline	2425	static void noinline ecb_cold
1857	verify_watcher (EV_P_ W w)	2426	verify_watcher (EV_P_ W w)
1858	{	2427	{
1859	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2428	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1860		2429
1861	if (w->pending)	2430	if (w->pending)
1862	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2431	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1863	}	2432	}
1864		2433
1865	static void noinline	2434	static void noinline ecb_cold
1866	verify_heap (EV_P_ ANHE *heap, int N)	2435	verify_heap (EV_P_ ANHE *heap, int N)
1867	{	2436	{
1868	int i;	2437	int i;
1869		2438
1870	for (i = HEAP0; i < N + HEAP0; ++i)	2439	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
1875		2444
1876	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2445	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1877	}	2446	}
1878	}	2447	}
1879		2448
1880	static void noinline	2449	static void noinline ecb_cold
1881	array_verify (EV_P_ W *ws, int cnt)	2450	array_verify (EV_P_ W *ws, int cnt)
1882	{	2451	{
1883	while (cnt--)	2452	while (cnt--)
1884	{	2453	{
1885	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2454	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
1887	}	2456	}
1888	}	2457	}
1889	#endif	2458	#endif
1890		2459
1891	#if EV_FEATURE_API	2460	#if EV_FEATURE_API
1892	void	2461	void ecb_cold
1893	ev_verify (EV_P)	2462	ev_verify (EV_P)
1894	{	2463	{
1895	#if EV_VERIFY	2464	#if EV_VERIFY
1896	int i;	2465	int i;
1897	WL w;	2466	WL w;
…		…
1932	#if EV_FORK_ENABLE	2501	#if EV_FORK_ENABLE
1933	assert (forkmax >= forkcnt);	2502	assert (forkmax >= forkcnt);
1934	array_verify (EV_A_ (W *)forks, forkcnt);	2503	array_verify (EV_A_ (W *)forks, forkcnt);
1935	#endif	2504	#endif
1936		2505
		2506	#if EV_CLEANUP_ENABLE
		2507	assert (cleanupmax >= cleanupcnt);
		2508	array_verify (EV_A_ (W *)cleanups, cleanupcnt);
		2509	#endif
		2510
1937	#if EV_ASYNC_ENABLE	2511	#if EV_ASYNC_ENABLE
1938	assert (asyncmax >= asynccnt);	2512	assert (asyncmax >= asynccnt);
1939	array_verify (EV_A_ (W *)asyncs, asynccnt);	2513	array_verify (EV_A_ (W *)asyncs, asynccnt);
1940	#endif	2514	#endif
1941		2515
…		…
1958	#endif	2532	#endif
1959	}	2533	}
1960	#endif	2534	#endif
1961		2535
1962	#if EV_MULTIPLICITY	2536	#if EV_MULTIPLICITY
1963	struct ev_loop *	2537	struct ev_loop * ecb_cold
1964	ev_default_loop_init (unsigned int flags)
1965	#else	2538	#else
1966	int	2539	int
		2540	#endif
1967	ev_default_loop (unsigned int flags)	2541	ev_default_loop (unsigned int flags)
1968	#endif
1969	{	2542	{
1970	if (!ev_default_loop_ptr)	2543	if (!ev_default_loop_ptr)
1971	{	2544	{
1972	#if EV_MULTIPLICITY	2545	#if EV_MULTIPLICITY
1973	EV_P = ev_default_loop_ptr = &default_loop_struct;	2546	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
1992		2565
1993	return ev_default_loop_ptr;	2566	return ev_default_loop_ptr;
1994	}	2567	}
1995		2568
1996	void	2569	void
1997	ev_default_destroy (void)	2570	ev_loop_fork (EV_P)
1998	{	2571	{
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 */	2572	postfork = 1; /* must be in line with ev_default_fork */
2021	}	2573	}
2022		2574
2023	/*****************************************************************************/	2575	/*****************************************************************************/
2024		2576
2025	void	2577	void
…		…
2047		2599
2048	for (pri = NUMPRI; pri--; )	2600	for (pri = NUMPRI; pri--; )
2049	while (pendingcnt [pri])	2601	while (pendingcnt [pri])
2050	{	2602	{
2051	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2603	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		2604
2056	p->w->pending = 0;	2605	p->w->pending = 0;
2057	EV_CB_INVOKE (p->w, p->events);	2606	EV_CB_INVOKE (p->w, p->events);
2058	EV_FREQUENT_CHECK;	2607	EV_FREQUENT_CHECK;
2059	}	2608	}
…		…
2121	feed_reverse_done (EV_A_ EV_TIMER);	2670	feed_reverse_done (EV_A_ EV_TIMER);
2122	}	2671	}
2123	}	2672	}
2124		2673
2125	#if EV_PERIODIC_ENABLE	2674	#if EV_PERIODIC_ENABLE
		2675
		2676	static void noinline
		2677	periodic_recalc (EV_P_ ev_periodic *w)
		2678	{
		2679	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
		2680	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
		2681
		2682	/* the above almost always errs on the low side */
		2683	while (at <= ev_rt_now)
		2684	{
		2685	ev_tstamp nat = at + w->interval;
		2686
		2687	/* when resolution fails us, we use ev_rt_now */
		2688	if (expect_false (nat == at))
		2689	{
		2690	at = ev_rt_now;
		2691	break;
		2692	}
		2693
		2694	at = nat;
		2695	}
		2696
		2697	ev_at (w) = at;
		2698	}
		2699
2126	/* make periodics pending */	2700	/* make periodics pending */
2127	inline_size void	2701	inline_size void
2128	periodics_reify (EV_P)	2702	periodics_reify (EV_P)
2129	{	2703	{
2130	EV_FREQUENT_CHECK;	2704	EV_FREQUENT_CHECK;
…		…
2149	ANHE_at_cache (periodics [HEAP0]);	2723	ANHE_at_cache (periodics [HEAP0]);
2150	downheap (periodics, periodiccnt, HEAP0);	2724	downheap (periodics, periodiccnt, HEAP0);
2151	}	2725	}
2152	else if (w->interval)	2726	else if (w->interval)
2153	{	2727	{
2154	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2728	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]);	2729	ANHE_at_cache (periodics [HEAP0]);
2169	downheap (periodics, periodiccnt, HEAP0);	2730	downheap (periodics, periodiccnt, HEAP0);
2170	}	2731	}
2171	else	2732	else
2172	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2733	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2180	}	2741	}
2181	}	2742	}
2182		2743
2183	/* simply recalculate all periodics */	2744	/* simply recalculate all periodics */
2184	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2745	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2185	static void noinline	2746	static void noinline ecb_cold
2186	periodics_reschedule (EV_P)	2747	periodics_reschedule (EV_P)
2187	{	2748	{
2188	int i;	2749	int i;
2189		2750
2190	/* adjust periodics after time jump */	2751	/* adjust periodics after time jump */
…		…
2193	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);	2754	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2194		2755
2195	if (w->reschedule_cb)	2756	if (w->reschedule_cb)
2196	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	2757	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2197	else if (w->interval)	2758	else if (w->interval)
2198	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2759	periodic_recalc (EV_A_ w);
2199		2760
2200	ANHE_at_cache (periodics [i]);	2761	ANHE_at_cache (periodics [i]);
2201	}	2762	}
2202		2763
2203	reheap (periodics, periodiccnt);	2764	reheap (periodics, periodiccnt);
2204	}	2765	}
2205	#endif	2766	#endif
2206		2767
2207	/* adjust all timers by a given offset */	2768	/* adjust all timers by a given offset */
2208	static void noinline	2769	static void noinline ecb_cold
2209	timers_reschedule (EV_P_ ev_tstamp adjust)	2770	timers_reschedule (EV_P_ ev_tstamp adjust)
2210	{	2771	{
2211	int i;	2772	int i;
2212		2773
2213	for (i = 0; i < timercnt; ++i)	2774	for (i = 0; i < timercnt; ++i)
…		…
2250	* doesn't hurt either as we only do this on time-jumps or	2811	* doesn't hurt either as we only do this on time-jumps or
2251	* in the unlikely event of having been preempted here.	2812	* in the unlikely event of having been preempted here.
2252	*/	2813	*/
2253	for (i = 4; --i; )	2814	for (i = 4; --i; )
2254	{	2815	{
		2816	ev_tstamp diff;
2255	rtmn_diff = ev_rt_now - mn_now;	2817	rtmn_diff = ev_rt_now - mn_now;
2256		2818
		2819	diff = odiff - rtmn_diff;
		2820
2257	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2821	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2258	return; /* all is well */	2822	return; /* all is well */
2259		2823
2260	ev_rt_now = ev_time ();	2824	ev_rt_now = ev_time ();
2261	mn_now = get_clock ();	2825	mn_now = get_clock ();
2262	now_floor = mn_now;	2826	now_floor = mn_now;
…		…
2285	mn_now = ev_rt_now;	2849	mn_now = ev_rt_now;
2286	}	2850	}
2287	}	2851	}
2288		2852
2289	void	2853	void
2290	ev_loop (EV_P_ int flags)	2854	ev_run (EV_P_ int flags)
2291	{	2855	{
2292	#if EV_FEATURE_API	2856	#if EV_FEATURE_API
2293	++loop_depth;	2857	++loop_depth;
2294	#endif	2858	#endif
2295		2859
2296	assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));	2860	assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2297		2861
2298	loop_done = EVUNLOOP_CANCEL;	2862	loop_done = EVBREAK_CANCEL;
2299		2863
2300	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */	2864	EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2301		2865
2302	do	2866	do
2303	{	2867	{
…		…
2346	/* calculate blocking time */	2910	/* calculate blocking time */
2347	{	2911	{
2348	ev_tstamp waittime = 0.;	2912	ev_tstamp waittime = 0.;
2349	ev_tstamp sleeptime = 0.;	2913	ev_tstamp sleeptime = 0.;
2350		2914
		2915	/* remember old timestamp for io_blocktime calculation */
		2916	ev_tstamp prev_mn_now = mn_now;
		2917
		2918	/* update time to cancel out callback processing overhead */
		2919	time_update (EV_A_ 1e100);
		2920
		2921	/* from now on, we want a pipe-wake-up */
		2922	pipe_write_wanted = 1;
		2923
		2924	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		2925
2351	if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))	2926	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2352	{	2927	{
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;	2928	waittime = MAX_BLOCKTIME;
2360		2929
2361	if (timercnt)	2930	if (timercnt)
2362	{	2931	{
2363	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	2932	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2364	if (waittime > to) waittime = to;	2933	if (waittime > to) waittime = to;
2365	}	2934	}
2366		2935
2367	#if EV_PERIODIC_ENABLE	2936	#if EV_PERIODIC_ENABLE
2368	if (periodiccnt)	2937	if (periodiccnt)
2369	{	2938	{
2370	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	2939	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2371	if (waittime > to) waittime = to;	2940	if (waittime > to) waittime = to;
2372	}	2941	}
2373	#endif	2942	#endif
2374		2943
2375	/* don't let timeouts decrease the waittime below timeout_blocktime */	2944	/* don't let timeouts decrease the waittime below timeout_blocktime */
2376	if (expect_false (waittime < timeout_blocktime))	2945	if (expect_false (waittime < timeout_blocktime))
2377	waittime = timeout_blocktime;	2946	waittime = timeout_blocktime;
		2947
		2948	/* at this point, we NEED to wait, so we have to ensure */
		2949	/* to pass a minimum nonzero value to the backend */
		2950	if (expect_false (waittime < backend_mintime))
		2951	waittime = backend_mintime;
2378		2952
2379	/* extra check because io_blocktime is commonly 0 */	2953	/* extra check because io_blocktime is commonly 0 */
2380	if (expect_false (io_blocktime))	2954	if (expect_false (io_blocktime))
2381	{	2955	{
2382	sleeptime = io_blocktime - (mn_now - prev_mn_now);	2956	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2383		2957
2384	if (sleeptime > waittime - backend_fudge)	2958	if (sleeptime > waittime - backend_mintime)
2385	sleeptime = waittime - backend_fudge;	2959	sleeptime = waittime - backend_mintime;
2386		2960
2387	if (expect_true (sleeptime > 0.))	2961	if (expect_true (sleeptime > 0.))
2388	{	2962	{
2389	ev_sleep (sleeptime);	2963	ev_sleep (sleeptime);
2390	waittime -= sleeptime;	2964	waittime -= sleeptime;
…		…
2393	}	2967	}
2394		2968
2395	#if EV_FEATURE_API	2969	#if EV_FEATURE_API
2396	++loop_count;	2970	++loop_count;
2397	#endif	2971	#endif
2398	assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */	2972	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2399	backend_poll (EV_A_ waittime);	2973	backend_poll (EV_A_ waittime);
2400	assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */	2974	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
		2975
		2976	pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
		2977
		2978	if (pipe_write_skipped)
		2979	{
		2980	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		2981	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		2982	}
		2983
2401		2984
2402	/* update ev_rt_now, do magic */	2985	/* update ev_rt_now, do magic */
2403	time_update (EV_A_ waittime + sleeptime);	2986	time_update (EV_A_ waittime + sleeptime);
2404	}	2987	}
2405		2988
…		…
2423	EV_INVOKE_PENDING;	3006	EV_INVOKE_PENDING;
2424	}	3007	}
2425	while (expect_true (	3008	while (expect_true (
2426	activecnt	3009	activecnt
2427	&& !loop_done	3010	&& !loop_done
2428	&& !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))	3011	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2429	));	3012	));
2430		3013
2431	if (loop_done == EVUNLOOP_ONE)	3014	if (loop_done == EVBREAK_ONE)
2432	loop_done = EVUNLOOP_CANCEL;	3015	loop_done = EVBREAK_CANCEL;
2433		3016
2434	#if EV_FEATURE_API	3017	#if EV_FEATURE_API
2435	--loop_depth;	3018	--loop_depth;
2436	#endif	3019	#endif
2437	}	3020	}
2438		3021
2439	void	3022	void
2440	ev_unloop (EV_P_ int how)	3023	ev_break (EV_P_ int how)
2441	{	3024	{
2442	loop_done = how;	3025	loop_done = how;
2443	}	3026	}
2444		3027
2445	void	3028	void
…		…
2593	EV_FREQUENT_CHECK;	3176	EV_FREQUENT_CHECK;
2594		3177
2595	wlist_del (&anfds[w->fd].head, (WL)w);	3178	wlist_del (&anfds[w->fd].head, (WL)w);
2596	ev_stop (EV_A_ (W)w);	3179	ev_stop (EV_A_ (W)w);
2597		3180
2598	fd_change (EV_A_ w->fd, 1);	3181	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2599		3182
2600	EV_FREQUENT_CHECK;	3183	EV_FREQUENT_CHECK;
2601	}	3184	}
2602		3185
2603	void noinline	3186	void noinline
…		…
2695	if (w->reschedule_cb)	3278	if (w->reschedule_cb)
2696	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	3279	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2697	else if (w->interval)	3280	else if (w->interval)
2698	{	3281	{
2699	assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));	3282	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 */	3283	periodic_recalc (EV_A_ w);
2701	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2702	}	3284	}
2703	else	3285	else
2704	ev_at (w) = w->offset;	3286	ev_at (w) = w->offset;
2705		3287
2706	EV_FREQUENT_CHECK;	3288	EV_FREQUENT_CHECK;
…		…
2827	sa.sa_handler = ev_sighandler;	3409	sa.sa_handler = ev_sighandler;
2828	sigfillset (&sa.sa_mask);	3410	sigfillset (&sa.sa_mask);
2829	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	3411	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2830	sigaction (w->signum, &sa, 0);	3412	sigaction (w->signum, &sa, 0);
2831		3413
		3414	if (origflags & EVFLAG_NOSIGMASK)
		3415	{
2832	sigemptyset (&sa.sa_mask);	3416	sigemptyset (&sa.sa_mask);
2833	sigaddset (&sa.sa_mask, w->signum);	3417	sigaddset (&sa.sa_mask, w->signum);
2834	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);	3418	sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
		3419	}
2835	#endif	3420	#endif
2836	}	3421	}
2837		3422
2838	EV_FREQUENT_CHECK;	3423	EV_FREQUENT_CHECK;
2839	}	3424	}
…		…
2980	if (!pend || pend == path)	3565	if (!pend || pend == path)
2981	break;	3566	break;
2982		3567
2983	*pend = 0;	3568	*pend = 0;
2984	w->wd = inotify_add_watch (fs_fd, path, mask);	3569	w->wd = inotify_add_watch (fs_fd, path, mask);
2985	}	3570	}
2986	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));	3571	while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2987	}	3572	}
2988	}	3573	}
2989		3574
2990	if (w->wd >= 0)	3575	if (w->wd >= 0)
…		…
3057	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3642	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3058	ofs += sizeof (struct inotify_event) + ev->len;	3643	ofs += sizeof (struct inotify_event) + ev->len;
3059	}	3644	}
3060	}	3645	}
3061		3646
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	3647	inline_size void ecb_cold
3095	ev_check_2625 (EV_P)	3648	ev_check_2625 (EV_P)
3096	{	3649	{
3097	/* kernels < 2.6.25 are borked	3650	/* kernels < 2.6.25 are borked
3098	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3651	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3099	*/	3652	*/
…		…
3420		3973
3421	#if EV_EMBED_ENABLE	3974	#if EV_EMBED_ENABLE
3422	void noinline	3975	void noinline
3423	ev_embed_sweep (EV_P_ ev_embed *w)	3976	ev_embed_sweep (EV_P_ ev_embed *w)
3424	{	3977	{
3425	ev_loop (w->other, EVLOOP_NONBLOCK);	3978	ev_run (w->other, EVRUN_NOWAIT);
3426	}	3979	}
3427		3980
3428	static void	3981	static void
3429	embed_io_cb (EV_P_ ev_io *io, int revents)	3982	embed_io_cb (EV_P_ ev_io *io, int revents)
3430	{	3983	{
3431	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));	3984	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3432		3985
3433	if (ev_cb (w))	3986	if (ev_cb (w))
3434	ev_feed_event (EV_A_ (W)w, EV_EMBED);	3987	ev_feed_event (EV_A_ (W)w, EV_EMBED);
3435	else	3988	else
3436	ev_loop (w->other, EVLOOP_NONBLOCK);	3989	ev_run (w->other, EVRUN_NOWAIT);
3437	}	3990	}
3438		3991
3439	static void	3992	static void
3440	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)	3993	embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3441	{	3994	{
…		…
3445	EV_P = w->other;	3998	EV_P = w->other;
3446		3999
3447	while (fdchangecnt)	4000	while (fdchangecnt)
3448	{	4001	{
3449	fd_reify (EV_A);	4002	fd_reify (EV_A);
3450	ev_loop (EV_A_ EVLOOP_NONBLOCK);	4003	ev_run (EV_A_ EVRUN_NOWAIT);
3451	}	4004	}
3452	}	4005	}
3453	}	4006	}
3454		4007
3455	static void	4008	static void
…		…
3461		4014
3462	{	4015	{
3463	EV_P = w->other;	4016	EV_P = w->other;
3464		4017
3465	ev_loop_fork (EV_A);	4018	ev_loop_fork (EV_A);
3466	ev_loop (EV_A_ EVLOOP_NONBLOCK);	4019	ev_run (EV_A_ EVRUN_NOWAIT);
3467	}	4020	}
3468		4021
3469	ev_embed_start (EV_A_ w);	4022	ev_embed_start (EV_A_ w);
3470	}	4023	}
3471		4024
…		…
3563		4116
3564	EV_FREQUENT_CHECK;	4117	EV_FREQUENT_CHECK;
3565	}	4118	}
3566	#endif	4119	#endif
3567		4120
		4121	#if EV_CLEANUP_ENABLE
		4122	void
		4123	ev_cleanup_start (EV_P_ ev_cleanup *w)
		4124	{
		4125	if (expect_false (ev_is_active (w)))
		4126	return;
		4127
		4128	EV_FREQUENT_CHECK;
		4129
		4130	ev_start (EV_A_ (W)w, ++cleanupcnt);
		4131	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
		4132	cleanups [cleanupcnt - 1] = w;
		4133
		4134	/* cleanup watchers should never keep a refcount on the loop */
		4135	ev_unref (EV_A);
		4136	EV_FREQUENT_CHECK;
		4137	}
		4138
		4139	void
		4140	ev_cleanup_stop (EV_P_ ev_cleanup *w)
		4141	{
		4142	clear_pending (EV_A_ (W)w);
		4143	if (expect_false (!ev_is_active (w)))
		4144	return;
		4145
		4146	EV_FREQUENT_CHECK;
		4147	ev_ref (EV_A);
		4148
		4149	{
		4150	int active = ev_active (w);
		4151
		4152	cleanups [active - 1] = cleanups [--cleanupcnt];
		4153	ev_active (cleanups [active - 1]) = active;
		4154	}
		4155
		4156	ev_stop (EV_A_ (W)w);
		4157
		4158	EV_FREQUENT_CHECK;
		4159	}
		4160	#endif
		4161
3568	#if EV_ASYNC_ENABLE	4162	#if EV_ASYNC_ENABLE
3569	void	4163	void
3570	ev_async_start (EV_P_ ev_async *w)	4164	ev_async_start (EV_P_ ev_async *w)
3571	{	4165	{
3572	if (expect_false (ev_is_active (w)))	4166	if (expect_false (ev_is_active (w)))
3573	return;	4167	return;
		4168
		4169	w->sent = 0;
3574		4170
3575	evpipe_init (EV_A);	4171	evpipe_init (EV_A);
3576		4172
3577	EV_FREQUENT_CHECK;	4173	EV_FREQUENT_CHECK;
3578		4174
…		…
3681	}	4277	}
3682		4278
3683	/*****************************************************************************/	4279	/*****************************************************************************/
3684		4280
3685	#if EV_WALK_ENABLE	4281	#if EV_WALK_ENABLE
3686	void	4282	void ecb_cold
3687	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4283	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3688	{	4284	{
3689	int i, j;	4285	int i, j;
3690	ev_watcher_list *wl, *wn;	4286	ev_watcher_list *wl, *wn;
3691		4287
…		…
3735	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4331	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3736	#endif	4332	#endif
3737		4333
3738	#if EV_IDLE_ENABLE	4334	#if EV_IDLE_ENABLE
3739	if (types & EV_IDLE)	4335	if (types & EV_IDLE)
3740	for (j = NUMPRI; i--; )	4336	for (j = NUMPRI; j--; )
3741	for (i = idlecnt [j]; i--; )	4337	for (i = idlecnt [j]; i--; )
3742	cb (EV_A_ EV_IDLE, idles [j][i]);	4338	cb (EV_A_ EV_IDLE, idles [j][i]);
3743	#endif	4339	#endif
3744		4340
3745	#if EV_FORK_ENABLE	4341	#if EV_FORK_ENABLE
…		…
3798		4394
3799	#if EV_MULTIPLICITY	4395	#if EV_MULTIPLICITY
3800	#include "ev_wrap.h"	4396	#include "ev_wrap.h"
3801	#endif	4397	#endif
3802		4398
3803	#ifdef __cplusplus	4399	EV_CPP(})
3804	}
3805	#endif
3806		4400

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