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Comparing libev/ev.c (file contents):
Revision 1.410 by root, Sat Feb 4 17:57:55 2012 UTC vs.
Revision 1.453 by root, Thu Feb 28 00:33:25 2013 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012 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	*
…		…
59	# endif	59	# endif
60	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 1	61	# define EV_USE_MONOTONIC 1
62	# endif	62	# endif
63	# endif	63	# endif
64	# elif !defined(EV_USE_CLOCK_SYSCALL)	64	# elif !defined EV_USE_CLOCK_SYSCALL
65	# define EV_USE_CLOCK_SYSCALL 0	65	# define EV_USE_CLOCK_SYSCALL 0
66	# endif	66	# endif
67		67
68	# if HAVE_CLOCK_GETTIME	68	# if HAVE_CLOCK_GETTIME
69	# ifndef EV_USE_MONOTONIC	69	# ifndef EV_USE_MONOTONIC
…		…
201	# include <sys/wait.h>	201	# include <sys/wait.h>
202	# include <unistd.h>	202	# include <unistd.h>
203	#else	203	#else
204	# include <io.h>	204	# include <io.h>
205	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
206	# include <windows.h>	207	# include <windows.h>
207	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
208	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
209	# endif	210	# endif
210	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
219	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
220		221
221	/* this block tries to deduce configuration from header-defined symbols and defaults */	222	/* this block tries to deduce configuration from header-defined symbols and defaults */
222		223
223	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
224	#if defined (EV_NSIG)	225	#if defined EV_NSIG
225	/* use what's provided */	226	/* use what's provided */
226	#elif defined (NSIG)	227	#elif defined NSIG
227	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
228	#elif defined(_NSIG)	229	#elif defined _NSIG
229	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
230	#elif defined (SIGMAX)	231	#elif defined SIGMAX
231	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
232	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
233	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
234	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
235	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
236	#elif defined (MAXSIG)	237	#elif defined MAXSIG
237	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
238	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
239	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
240	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
241	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
243	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244	#else	245	#else
245	# error "unable to find value for NSIG, please report"	246	# error "unable to find value for NSIG, please report"
246	/* to make it compile regardless, just remove the above line, */	247	/* to make it compile regardless, just remove the above line, */
247	/* but consider reporting it, too! :) */	248	/* but consider reporting it, too! :) */
…		…
259	# define EV_USE_CLOCK_SYSCALL 0	260	# define EV_USE_CLOCK_SYSCALL 0
260	# endif	261	# endif
261	#endif	262	#endif
262		263
263	#ifndef EV_USE_MONOTONIC	264	#ifndef EV_USE_MONOTONIC
264	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265	# define EV_USE_MONOTONIC EV_FEATURE_OS	266	# define EV_USE_MONOTONIC EV_FEATURE_OS
266	# else	267	# else
267	# define EV_USE_MONOTONIC 0	268	# define EV_USE_MONOTONIC 0
268	# endif	269	# endif
269	#endif	270	#endif
…		…
356		357
357	#ifndef EV_HEAP_CACHE_AT	358	#ifndef EV_HEAP_CACHE_AT
358	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	359	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359	#endif	360	#endif
360		361
		362	#ifdef ANDROID
		363	/* supposedly, android doesn't typedef fd_mask */
		364	# undef EV_USE_SELECT
		365	# define EV_USE_SELECT 0
		366	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		367	# undef EV_USE_CLOCK_SYSCALL
		368	# define EV_USE_CLOCK_SYSCALL 0
		369	#endif
		370
		371	/* aix's poll.h seems to cause lots of trouble */
		372	#ifdef _AIX
		373	/* AIX has a completely broken poll.h header */
		374	# undef EV_USE_POLL
		375	# define EV_USE_POLL 0
		376	#endif
		377
361	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	378	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
362	/* which makes programs even slower. might work on other unices, too. */	379	/* which makes programs even slower. might work on other unices, too. */
363	#if EV_USE_CLOCK_SYSCALL	380	#if EV_USE_CLOCK_SYSCALL
364	# include <syscall.h>	381	# include <sys/syscall.h>
365	# ifdef SYS_clock_gettime	382	# ifdef SYS_clock_gettime
366	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	383	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367	# undef EV_USE_MONOTONIC	384	# undef EV_USE_MONOTONIC
368	# define EV_USE_MONOTONIC 1	385	# define EV_USE_MONOTONIC 1
369	# else	386	# else
…		…
372	# endif	389	# endif
373	#endif	390	#endif
374		391
375	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	392	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376		393
377	#ifdef _AIX
378	/* AIX has a completely broken poll.h header */
379	# undef EV_USE_POLL
380	# define EV_USE_POLL 0
381	#endif
382
383	#ifndef CLOCK_MONOTONIC	394	#ifndef CLOCK_MONOTONIC
384	# undef EV_USE_MONOTONIC	395	# undef EV_USE_MONOTONIC
385	# define EV_USE_MONOTONIC 0	396	# define EV_USE_MONOTONIC 0
386	#endif	397	#endif
387		398
…		…
395	# define EV_USE_INOTIFY 0	406	# define EV_USE_INOTIFY 0
396	#endif	407	#endif
397		408
398	#if !EV_USE_NANOSLEEP	409	#if !EV_USE_NANOSLEEP
399	/* hp-ux has it in sys/time.h, which we unconditionally include above */	410	/* hp-ux has it in sys/time.h, which we unconditionally include above */
400	# if !defined(_WIN32) && !defined(__hpux)	411	# if !defined _WIN32 && !defined __hpux
401	# include <sys/select.h>	412	# include <sys/select.h>
402	# endif	413	# endif
403	#endif	414	#endif
404		415
405	#if EV_USE_INOTIFY	416	#if EV_USE_INOTIFY
…		…
408	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	419	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409	# ifndef IN_DONT_FOLLOW	420	# ifndef IN_DONT_FOLLOW
410	# undef EV_USE_INOTIFY	421	# undef EV_USE_INOTIFY
411	# define EV_USE_INOTIFY 0	422	# define EV_USE_INOTIFY 0
412	# endif	423	# endif
413	#endif
414
415	#if EV_SELECT_IS_WINSOCKET
416	# include <winsock.h>
417	#endif	424	#endif
418		425
419	#if EV_USE_EVENTFD	426	#if EV_USE_EVENTFD
420	/* 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 */
421	# include <stdint.h>	428	# include <stdint.h>
…		…
507	*/	514	*/
508		515
509	#ifndef ECB_H	516	#ifndef ECB_H
510	#define ECB_H	517	#define ECB_H
511		518
		519	/* 16 bits major, 16 bits minor */
		520	#define ECB_VERSION 0x00010002
		521
512	#ifdef _WIN32	522	#ifdef _WIN32
513	typedef signed char int8_t;	523	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	524	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	525	typedef signed short int16_t;
516	typedef unsigned short uint16_t;	526	typedef unsigned short uint16_t;
…		…
521	typedef unsigned long long uint64_t;	531	typedef unsigned long long uint64_t;
522	#else /* _MSC_VER || __BORLANDC__ */	532	#else /* _MSC_VER || __BORLANDC__ */
523	typedef signed __int64 int64_t;	533	typedef signed __int64 int64_t;
524	typedef unsigned __int64 uint64_t;	534	typedef unsigned __int64 uint64_t;
525	#endif	535	#endif
		536	#ifdef _WIN64
		537	#define ECB_PTRSIZE 8
		538	typedef uint64_t uintptr_t;
		539	typedef int64_t intptr_t;
		540	#else
		541	#define ECB_PTRSIZE 4
		542	typedef uint32_t uintptr_t;
		543	typedef int32_t intptr_t;
		544	#endif
526	#else	545	#else
527	#include <inttypes.h>	546	#include <inttypes.h>
		547	#if UINTMAX_MAX > 0xffffffffU
		548	#define ECB_PTRSIZE 8
		549	#else
		550	#define ECB_PTRSIZE 4
		551	#endif
528	#endif	552	#endif
529		553
530	/* many compilers define _GNUC_ to some versions but then only implement	554	/* many compilers define _GNUC_ to some versions but then only implement
531	* what their idiot authors think are the "more important" extensions,	555	* what their idiot authors think are the "more important" extensions,
532	* causing enormous grief in return for some better fake benchmark numbers.	556	* causing enormous grief in return for some better fake benchmark numbers.
533	* or so.	557	* or so.
534	* we try to detect these and simply assume they are not gcc - if they have	558	* we try to detect these and simply assume they are not gcc - if they have
535	* an issue with that they should have done it right in the first place.	559	* an issue with that they should have done it right in the first place.
536	*/	560	*/
537	#ifndef ECB_GCC_VERSION	561	#ifndef ECB_GCC_VERSION
538	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	562	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539	#define ECB_GCC_VERSION(major,minor) 0	563	#define ECB_GCC_VERSION(major,minor) 0
540	#else	564	#else
541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	565	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542	#endif	566	#endif
543	#endif	567	#endif
544		568
		569	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		570	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		571	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		572	#define ECB_CPP (__cplusplus+0)
		573	#define ECB_CPP11 (__cplusplus >= 201103L)
		574
		575	#if ECB_CPP
		576	#define ECB_EXTERN_C extern "C"
		577	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		578	#define ECB_EXTERN_C_END }
		579	#else
		580	#define ECB_EXTERN_C extern
		581	#define ECB_EXTERN_C_BEG
		582	#define ECB_EXTERN_C_END
		583	#endif
		584
545	/*****************************************************************************/	585	/*****************************************************************************/
546		586
547	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	587	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */	588	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549		589
550	#if ECB_NO_THREADS	590	#if ECB_NO_THREADS
551	# define ECB_NO_SMP 1	591	#define ECB_NO_SMP 1
552	#endif	592	#endif
553		593
554	#if ECB_NO_THREADS || ECB_NO_SMP	594	#if ECB_NO_SMP
555	#define ECB_MEMORY_FENCE do { } while (0)	595	#define ECB_MEMORY_FENCE do { } while (0)
556	#endif	596	#endif
557		597
558	#ifndef ECB_MEMORY_FENCE	598	#ifndef ECB_MEMORY_FENCE
559	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	599	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560	#if __i386 || __i386__	600	#if __i386 || __i386__
561	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	601	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */	602	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	603	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	604	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	605	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	606	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */	607	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	608	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	609	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	610	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	611	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	612	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \	613	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	614	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576	#elif __sparc || __sparc__	616	#elif __sparc || __sparc__
577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")	617	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	618	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	619	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580	#elif defined(__s390__) || defined(__s390x__)	620	#elif defined __s390__ || defined __s390x__
581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		622	#elif defined __mips__
		623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		624	#elif defined __alpha__
		625	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		626	#elif defined __hppa__
		627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		629	#elif defined __ia64__
		630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
582	#endif	631	#endif
583	#endif	632	#endif
584	#endif	633	#endif
585		634
586	#ifndef ECB_MEMORY_FENCE	635	#ifndef ECB_MEMORY_FENCE
		636	#if ECB_GCC_VERSION(4,7)
		637	/* see comment below (stdatomic.h) about the C11 memory model. */
		638	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		639
		640	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		641	* without risking compile time errors with other compilers. We *could*
		642	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		643	* around this shit time and again.
		644	* #elif defined __clang && __has_feature (cxx_atomic)
		645	* // see comment below (stdatomic.h) about the C11 memory model.
		646	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		647	*/
		648
587	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	649	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
588	#define ECB_MEMORY_FENCE __sync_synchronize ()	650	#define ECB_MEMORY_FENCE __sync_synchronize ()
589	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
590	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
591	#elif _MSC_VER >= 1400 /* VC++ 2005 */	651	#elif _MSC_VER >= 1400 /* VC++ 2005 */
592	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	652	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	653	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	654	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
595	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	655	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596	#elif defined(_WIN32)	656	#elif defined _WIN32
597	#include <WinNT.h>	657	#include <WinNT.h>
598	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	658	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	659	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600	#include <mbarrier.h>	660	#include <mbarrier.h>
601	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	661	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
602	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	662	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()	663	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		664	#elif __xlC__
		665	#define ECB_MEMORY_FENCE __sync ()
		666	#endif
		667	#endif
		668
		669	#ifndef ECB_MEMORY_FENCE
		670	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		671	/* we assume that these memory fences work on all variables/all memory accesses, */
		672	/* not just C11 atomics and atomic accesses */
		673	#include <stdatomic.h>
		674	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		675	/* any fence other than seq_cst, which isn't very efficient for us. */
		676	/* Why that is, we don't know - either the C11 memory model is quite useless */
		677	/* for most usages, or gcc and clang have a bug */
		678	/* I *currently* lean towards the latter, and inefficiently implement */
		679	/* all three of ecb's fences as a seq_cst fence */
		680	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
604	#endif	681	#endif
605	#endif	682	#endif
606		683
607	#ifndef ECB_MEMORY_FENCE	684	#ifndef ECB_MEMORY_FENCE
608	#if !ECB_AVOID_PTHREADS	685	#if !ECB_AVOID_PTHREADS
…		…
620	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	697	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
621	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)	698	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
622	#endif	699	#endif
623	#endif	700	#endif
624		701
625	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	702	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
626	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	703	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627	#endif	704	#endif
628		705
629	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	706	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
630	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	707	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631	#endif	708	#endif
632		709
633	/*****************************************************************************/	710	/*****************************************************************************/
634
635	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
636		711
637	#if __cplusplus	712	#if __cplusplus
638	#define ecb_inline static inline	713	#define ecb_inline static inline
639	#elif ECB_GCC_VERSION(2,5)	714	#elif ECB_GCC_VERSION(2,5)
640	#define ecb_inline static __inline__	715	#define ecb_inline static __inline__
…		…
679	#elif ECB_GCC_VERSION(3,0)	754	#elif ECB_GCC_VERSION(3,0)
680	#define ecb_decltype(x) __typeof(x)	755	#define ecb_decltype(x) __typeof(x)
681	#endif	756	#endif
682		757
683	#define ecb_noinline ecb_attribute ((__noinline__))	758	#define ecb_noinline ecb_attribute ((__noinline__))
684	#define ecb_noreturn ecb_attribute ((__noreturn__))
685	#define ecb_unused ecb_attribute ((__unused__))	759	#define ecb_unused ecb_attribute ((__unused__))
686	#define ecb_const ecb_attribute ((__const__))	760	#define ecb_const ecb_attribute ((__const__))
687	#define ecb_pure ecb_attribute ((__pure__))	761	#define ecb_pure ecb_attribute ((__pure__))
		762
		763	#if ECB_C11
		764	#define ecb_noreturn _Noreturn
		765	#else
		766	#define ecb_noreturn ecb_attribute ((__noreturn__))
		767	#endif
688		768
689	#if ECB_GCC_VERSION(4,3)	769	#if ECB_GCC_VERSION(4,3)
690	#define ecb_artificial ecb_attribute ((__artificial__))	770	#define ecb_artificial ecb_attribute ((__artificial__))
691	#define ecb_hot ecb_attribute ((__hot__))	771	#define ecb_hot ecb_attribute ((__hot__))
692	#define ecb_cold ecb_attribute ((__cold__))	772	#define ecb_cold ecb_attribute ((__cold__))
…		…
783		863
784	return r + ecb_ld32 (x);	864	return r + ecb_ld32 (x);
785	}	865	}
786	#endif	866	#endif
787		867
		868	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		869	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		870	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		871	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		872
788	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	873	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
789	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	874	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
790	{	875	{
791	return ( (x * 0x0802U & 0x22110U)	876	return ( (x * 0x0802U & 0x22110U)
792	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	877	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
876	ecb_inline void ecb_unreachable (void) ecb_noreturn;	961	ecb_inline void ecb_unreachable (void) ecb_noreturn;
877	ecb_inline void ecb_unreachable (void) { }	962	ecb_inline void ecb_unreachable (void) { }
878	#endif	963	#endif
879		964
880	/* try to tell the compiler that some condition is definitely true */	965	/* try to tell the compiler that some condition is definitely true */
881	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	966	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
882		967
883	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	968	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
884	ecb_inline unsigned char	969	ecb_inline unsigned char
885	ecb_byteorder_helper (void)	970	ecb_byteorder_helper (void)
886	{	971	{
887	const uint32_t u = 0x11223344;	972	/* the union code still generates code under pressure in gcc, */
888	return *(unsigned char *)&u;	973	/* but less than using pointers, and always seems to */
		974	/* successfully return a constant. */
		975	/* the reason why we have this horrible preprocessor mess */
		976	/* is to avoid it in all cases, at least on common architectures */
		977	/* or when using a recent enough gcc version (>= 4.6) */
		978	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		979	return 0x44;
		980	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		981	return 0x44;
		982	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		983	return 0x11;
		984	#else
		985	union
		986	{
		987	uint32_t i;
		988	uint8_t c;
		989	} u = { 0x11223344 };
		990	return u.c;
		991	#endif
889	}	992	}
890		993
891	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	994	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
892	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	995	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
893	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	996	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
…		…
924	}	1027	}
925	#else	1028	#else
926	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1029	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
927	#endif	1030	#endif
928		1031
		1032	/*******************************************************************************/
		1033	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1034
		1035	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1036	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1037	#if 0 \
		1038	|| __i386 || __i386__ \
		1039	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1040	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1041	|| defined __arm__ && defined __ARM_EABI__ \
		1042	|| defined __s390__ || defined __s390x__ \
		1043	|| defined __mips__ \
		1044	|| defined __alpha__ \
		1045	|| defined __hppa__ \
		1046	|| defined __ia64__ \
		1047	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1048	#define ECB_STDFP 1
		1049	#include <string.h> /* for memcpy */
		1050	#else
		1051	#define ECB_STDFP 0
		1052	#include <math.h> /* for frexp*, ldexp* */
		1053	#endif
		1054
		1055	#ifndef ECB_NO_LIBM
		1056
		1057	/* convert a float to ieee single/binary32 */
		1058	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1059	ecb_function_ uint32_t
		1060	ecb_float_to_binary32 (float x)
		1061	{
		1062	uint32_t r;
		1063
		1064	#if ECB_STDFP
		1065	memcpy (&r, &x, 4);
		1066	#else
		1067	/* slow emulation, works for anything but -0 */
		1068	uint32_t m;
		1069	int e;
		1070
		1071	if (x == 0e0f ) return 0x00000000U;
		1072	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1073	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1074	if (x != x ) return 0x7fbfffffU;
		1075
		1076	m = frexpf (x, &e) * 0x1000000U;
		1077
		1078	r = m & 0x80000000U;
		1079
		1080	if (r)
		1081	m = -m;
		1082
		1083	if (e <= -126)
		1084	{
		1085	m &= 0xffffffU;
		1086	m >>= (-125 - e);
		1087	e = -126;
		1088	}
		1089
		1090	r |= (e + 126) << 23;
		1091	r |= m & 0x7fffffU;
		1092	#endif
		1093
		1094	return r;
		1095	}
		1096
		1097	/* converts an ieee single/binary32 to a float */
		1098	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1099	ecb_function_ float
		1100	ecb_binary32_to_float (uint32_t x)
		1101	{
		1102	float r;
		1103
		1104	#if ECB_STDFP
		1105	memcpy (&r, &x, 4);
		1106	#else
		1107	/* emulation, only works for normals and subnormals and +0 */
		1108	int neg = x >> 31;
		1109	int e = (x >> 23) & 0xffU;
		1110
		1111	x &= 0x7fffffU;
		1112
		1113	if (e)
		1114	x |= 0x800000U;
		1115	else
		1116	e = 1;
		1117
		1118	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1119	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1120
		1121	r = neg ? -r : r;
		1122	#endif
		1123
		1124	return r;
		1125	}
		1126
		1127	/* convert a double to ieee double/binary64 */
		1128	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1129	ecb_function_ uint64_t
		1130	ecb_double_to_binary64 (double x)
		1131	{
		1132	uint64_t r;
		1133
		1134	#if ECB_STDFP
		1135	memcpy (&r, &x, 8);
		1136	#else
		1137	/* slow emulation, works for anything but -0 */
		1138	uint64_t m;
		1139	int e;
		1140
		1141	if (x == 0e0 ) return 0x0000000000000000U;
		1142	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1143	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1144	if (x != x ) return 0X7ff7ffffffffffffU;
		1145
		1146	m = frexp (x, &e) * 0x20000000000000U;
		1147
		1148	r = m & 0x8000000000000000;;
		1149
		1150	if (r)
		1151	m = -m;
		1152
		1153	if (e <= -1022)
		1154	{
		1155	m &= 0x1fffffffffffffU;
		1156	m >>= (-1021 - e);
		1157	e = -1022;
		1158	}
		1159
		1160	r |= ((uint64_t)(e + 1022)) << 52;
		1161	r |= m & 0xfffffffffffffU;
		1162	#endif
		1163
		1164	return r;
		1165	}
		1166
		1167	/* converts an ieee double/binary64 to a double */
		1168	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1169	ecb_function_ double
		1170	ecb_binary64_to_double (uint64_t x)
		1171	{
		1172	double r;
		1173
		1174	#if ECB_STDFP
		1175	memcpy (&r, &x, 8);
		1176	#else
		1177	/* emulation, only works for normals and subnormals and +0 */
		1178	int neg = x >> 63;
		1179	int e = (x >> 52) & 0x7ffU;
		1180
		1181	x &= 0xfffffffffffffU;
		1182
		1183	if (e)
		1184	x |= 0x10000000000000U;
		1185	else
		1186	e = 1;
		1187
		1188	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1189	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1190
		1191	r = neg ? -r : r;
		1192	#endif
		1193
		1194	return r;
		1195	}
		1196
		1197	#endif
		1198
929	#endif	1199	#endif
930		1200
931	/* ECB.H END */	1201	/* ECB.H END */
932		1202
933	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1203	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1099	{	1369	{
1100	write (STDERR_FILENO, msg, strlen (msg));	1370	write (STDERR_FILENO, msg, strlen (msg));
1101	}	1371	}
1102	#endif	1372	#endif
1103		1373
1104	static void (*syserr_cb)(const char *msg);	1374	static void (*syserr_cb)(const char *msg) EV_THROW;
1105		1375
1106	void ecb_cold	1376	void ecb_cold
1107	ev_set_syserr_cb (void (*cb)(const char *msg))	1377	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1108	{	1378	{
1109	syserr_cb = cb;	1379	syserr_cb = cb;
1110	}	1380	}
1111		1381
1112	static void noinline ecb_cold	1382	static void noinline ecb_cold
…		…
1130	abort ();	1400	abort ();
1131	}	1401	}
1132	}	1402	}
1133		1403
1134	static void *	1404	static void *
1135	ev_realloc_emul (void *ptr, long size)	1405	ev_realloc_emul (void *ptr, long size) EV_THROW
1136	{	1406	{
1137	#if __GLIBC__
1138	return realloc (ptr, size);
1139	#else
1140	/* some systems, notably openbsd and darwin, fail to properly	1407	/* some systems, notably openbsd and darwin, fail to properly
1141	* implement realloc (x, 0) (as required by both ansi c-89 and	1408	* implement realloc (x, 0) (as required by both ansi c-89 and
1142	* the single unix specification, so work around them here.	1409	* the single unix specification, so work around them here.
		1410	* recently, also (at least) fedora and debian started breaking it,
		1411	* despite documenting it otherwise.
1143	*/	1412	*/
1144		1413
1145	if (size)	1414	if (size)
1146	return realloc (ptr, size);	1415	return realloc (ptr, size);
1147		1416
1148	free (ptr);	1417	free (ptr);
1149	return 0;	1418	return 0;
1150	#endif
1151	}	1419	}
1152		1420
1153	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1421	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1154		1422
1155	void ecb_cold	1423	void ecb_cold
1156	ev_set_allocator (void *(*cb)(void *ptr, long size))	1424	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1157	{	1425	{
1158	alloc = cb;	1426	alloc = cb;
1159	}	1427	}
1160		1428
1161	inline_speed void *	1429	inline_speed void *
…		…
1278		1546
1279	/*****************************************************************************/	1547	/*****************************************************************************/
1280		1548
1281	#ifndef EV_HAVE_EV_TIME	1549	#ifndef EV_HAVE_EV_TIME
1282	ev_tstamp	1550	ev_tstamp
1283	ev_time (void)	1551	ev_time (void) EV_THROW
1284	{	1552	{
1285	#if EV_USE_REALTIME	1553	#if EV_USE_REALTIME
1286	if (expect_true (have_realtime))	1554	if (expect_true (have_realtime))
1287	{	1555	{
1288	struct timespec ts;	1556	struct timespec ts;
…		…
1312	return ev_time ();	1580	return ev_time ();
1313	}	1581	}
1314		1582
1315	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1316	ev_tstamp	1584	ev_tstamp
1317	ev_now (EV_P)	1585	ev_now (EV_P) EV_THROW
1318	{	1586	{
1319	return ev_rt_now;	1587	return ev_rt_now;
1320	}	1588	}
1321	#endif	1589	#endif
1322		1590
1323	void	1591	void
1324	ev_sleep (ev_tstamp delay)	1592	ev_sleep (ev_tstamp delay) EV_THROW
1325	{	1593	{
1326	if (delay > 0.)	1594	if (delay > 0.)
1327	{	1595	{
1328	#if EV_USE_NANOSLEEP	1596	#if EV_USE_NANOSLEEP
1329	struct timespec ts;	1597	struct timespec ts;
1330		1598
1331	EV_TS_SET (ts, delay);	1599	EV_TS_SET (ts, delay);
1332	nanosleep (&ts, 0);	1600	nanosleep (&ts, 0);
1333	#elif defined(_WIN32)	1601	#elif defined _WIN32
1334	Sleep ((unsigned long)(delay * 1e3));	1602	Sleep ((unsigned long)(delay * 1e3));
1335	#else	1603	#else
1336	struct timeval tv;	1604	struct timeval tv;
1337		1605
1338	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1606	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1410	pendingcb (EV_P_ ev_prepare *w, int revents)	1678	pendingcb (EV_P_ ev_prepare *w, int revents)
1411	{	1679	{
1412	}	1680	}
1413		1681
1414	void noinline	1682	void noinline
1415	ev_feed_event (EV_P_ void *w, int revents)	1683	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1416	{	1684	{
1417	W w_ = (W)w;	1685	W w_ = (W)w;
1418	int pri = ABSPRI (w_);	1686	int pri = ABSPRI (w_);
1419		1687
1420	if (expect_false (w_->pending))	1688	if (expect_false (w_->pending))
…		…
1424	w_->pending = ++pendingcnt [pri];	1692	w_->pending = ++pendingcnt [pri];
1425	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1693	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1426	pendings [pri][w_->pending - 1].w = w_;	1694	pendings [pri][w_->pending - 1].w = w_;
1427	pendings [pri][w_->pending - 1].events = revents;	1695	pendings [pri][w_->pending - 1].events = revents;
1428	}	1696	}
		1697
		1698	pendingpri = NUMPRI - 1;
1429	}	1699	}
1430		1700
1431	inline_speed void	1701	inline_speed void
1432	feed_reverse (EV_P_ W w)	1702	feed_reverse (EV_P_ W w)
1433	{	1703	{
…		…
1479	if (expect_true (!anfd->reify))	1749	if (expect_true (!anfd->reify))
1480	fd_event_nocheck (EV_A_ fd, revents);	1750	fd_event_nocheck (EV_A_ fd, revents);
1481	}	1751	}
1482		1752
1483	void	1753	void
1484	ev_feed_fd_event (EV_P_ int fd, int revents)	1754	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1485	{	1755	{
1486	if (fd >= 0 && fd < anfdmax)	1756	if (fd >= 0 && fd < anfdmax)
1487	fd_event_nocheck (EV_A_ fd, revents);	1757	fd_event_nocheck (EV_A_ fd, revents);
1488	}	1758	}
1489		1759
…		…
1808	static void noinline ecb_cold	2078	static void noinline ecb_cold
1809	evpipe_init (EV_P)	2079	evpipe_init (EV_P)
1810	{	2080	{
1811	if (!ev_is_active (&pipe_w))	2081	if (!ev_is_active (&pipe_w))
1812	{	2082	{
		2083	int fds [2];
		2084
1813	# if EV_USE_EVENTFD	2085	# if EV_USE_EVENTFD
		2086	fds [0] = -1;
1814	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2087	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1815	if (evfd < 0 && errno == EINVAL)	2088	if (fds [1] < 0 && errno == EINVAL)
1816	evfd = eventfd (0, 0);	2089	fds [1] = eventfd (0, 0);
1817		2090
1818	if (evfd >= 0)	2091	if (fds [1] < 0)
		2092	# endif
1819	{	2093	{
		2094	while (pipe (fds))
		2095	ev_syserr ("(libev) error creating signal/async pipe");
		2096
		2097	fd_intern (fds [0]);
		2098	}
		2099
		2100	fd_intern (fds [1]);
		2101
1820	evpipe [0] = -1;	2102	evpipe [0] = fds [0];
1821	fd_intern (evfd); /* doing it twice doesn't hurt */	2103
1822	ev_io_set (&pipe_w, evfd, EV_READ);	2104	if (evpipe [1] < 0)
		2105	evpipe [1] = fds [1]; /* first call, set write fd */
		2106	else
		2107	{
		2108	/* on subsequent calls, do not change evpipe [1] */
		2109	/* so that evpipe_write can always rely on its value. */
		2110	/* this branch does not do anything sensible on windows, */
		2111	/* so must not be executed on windows */
		2112
		2113	dup2 (fds [1], evpipe [1]);
		2114	close (fds [1]);
		2115	}
		2116
		2117	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2118	ev_io_start (EV_A_ &pipe_w);
		2119	ev_unref (EV_A); /* watcher should not keep loop alive */
		2120	}
		2121	}
		2122
		2123	inline_speed void
		2124	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2125	{
		2126	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2127
		2128	if (expect_true (*flag))
		2129	return;
		2130
		2131	*flag = 1;
		2132	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2133
		2134	pipe_write_skipped = 1;
		2135
		2136	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2137
		2138	if (pipe_write_wanted)
		2139	{
		2140	int old_errno;
		2141
		2142	pipe_write_skipped = 0;
		2143	ECB_MEMORY_FENCE_RELEASE;
		2144
		2145	old_errno = errno; /* save errno because write will clobber it */
		2146
		2147	#if EV_USE_EVENTFD
		2148	if (evpipe [0] < 0)
		2149	{
		2150	uint64_t counter = 1;
		2151	write (evpipe [1], &counter, sizeof (uint64_t));
1823	}	2152	}
1824	else	2153	else
1825	# endif	2154	#endif
1826	{	2155	{
1827	while (pipe (evpipe))	2156	#ifdef _WIN32
1828	ev_syserr ("(libev) error creating signal/async pipe");	2157	WSABUF buf;
1829		2158	DWORD sent;
1830	fd_intern (evpipe [0]);	2159	buf.buf = &buf;
1831	fd_intern (evpipe [1]);	2160	buf.len = 1;
1832	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2161	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1833	}	2162	#else
1834
1835	ev_io_start (EV_A_ &pipe_w);
1836	ev_unref (EV_A); /* watcher should not keep loop alive */
1837	}
1838	}
1839
1840	inline_speed void
1841	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1842	{
1843	if (expect_true (*flag))
1844	return;
1845
1846	*flag = 1;
1847
1848	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1849
1850	pipe_write_skipped = 1;
1851
1852	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1853
1854	if (pipe_write_wanted)
1855	{
1856	int old_errno;
1857
1858	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1859
1860	old_errno = errno; /* save errno because write will clobber it */
1861
1862	#if EV_USE_EVENTFD
1863	if (evfd >= 0)
1864	{
1865	uint64_t counter = 1;
1866	write (evfd, &counter, sizeof (uint64_t));
1867	}
1868	else
1869	#endif
1870	{
1871	/* win32 people keep sending patches that change this write() to send() */
1872	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1873	/* so when you think this write should be a send instead, please find out */
1874	/* where your send() is from - it's definitely not the microsoft send, and */
1875	/* tell me. thank you. */
1876	write (evpipe [1], &(evpipe [1]), 1);	2163	write (evpipe [1], &(evpipe [1]), 1);
		2164	#endif
1877	}	2165	}
1878		2166
1879	errno = old_errno;	2167	errno = old_errno;
1880	}	2168	}
1881	}	2169	}
…		…
1888	int i;	2176	int i;
1889		2177
1890	if (revents & EV_READ)	2178	if (revents & EV_READ)
1891	{	2179	{
1892	#if EV_USE_EVENTFD	2180	#if EV_USE_EVENTFD
1893	if (evfd >= 0)	2181	if (evpipe [0] < 0)
1894	{	2182	{
1895	uint64_t counter;	2183	uint64_t counter;
1896	read (evfd, &counter, sizeof (uint64_t));	2184	read (evpipe [1], &counter, sizeof (uint64_t));
1897	}	2185	}
1898	else	2186	else
1899	#endif	2187	#endif
1900	{	2188	{
1901	char dummy;	2189	char dummy[4];
1902	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2190	#ifdef _WIN32
		2191	WSABUF buf;
		2192	DWORD recvd;
		2193	DWORD flags = 0;
		2194	buf.buf = dummy;
		2195	buf.len = sizeof (dummy);
		2196	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2197	#else
1903	read (evpipe [0], &dummy, 1);	2198	read (evpipe [0], &dummy, sizeof (dummy));
		2199	#endif
1904	}	2200	}
1905	}	2201	}
1906		2202
1907	pipe_write_skipped = 0;	2203	pipe_write_skipped = 0;
		2204
		2205	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1908		2206
1909	#if EV_SIGNAL_ENABLE	2207	#if EV_SIGNAL_ENABLE
1910	if (sig_pending)	2208	if (sig_pending)
1911	{	2209	{
1912	sig_pending = 0;	2210	sig_pending = 0;
		2211
		2212	ECB_MEMORY_FENCE;
1913		2213
1914	for (i = EV_NSIG - 1; i--; )	2214	for (i = EV_NSIG - 1; i--; )
1915	if (expect_false (signals [i].pending))	2215	if (expect_false (signals [i].pending))
1916	ev_feed_signal_event (EV_A_ i + 1);	2216	ev_feed_signal_event (EV_A_ i + 1);
1917	}	2217	}
…		…
1919		2219
1920	#if EV_ASYNC_ENABLE	2220	#if EV_ASYNC_ENABLE
1921	if (async_pending)	2221	if (async_pending)
1922	{	2222	{
1923	async_pending = 0;	2223	async_pending = 0;
		2224
		2225	ECB_MEMORY_FENCE;
1924		2226
1925	for (i = asynccnt; i--; )	2227	for (i = asynccnt; i--; )
1926	if (asyncs [i]->sent)	2228	if (asyncs [i]->sent)
1927	{	2229	{
1928	asyncs [i]->sent = 0;	2230	asyncs [i]->sent = 0;
		2231	ECB_MEMORY_FENCE_RELEASE;
1929	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2232	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1930	}	2233	}
1931	}	2234	}
1932	#endif	2235	#endif
1933	}	2236	}
1934		2237
1935	/*****************************************************************************/	2238	/*****************************************************************************/
1936		2239
1937	void	2240	void
1938	ev_feed_signal (int signum)	2241	ev_feed_signal (int signum) EV_THROW
1939	{	2242	{
1940	#if EV_MULTIPLICITY	2243	#if EV_MULTIPLICITY
		2244	EV_P;
		2245	ECB_MEMORY_FENCE_ACQUIRE;
1941	EV_P = signals [signum - 1].loop;	2246	EV_A = signals [signum - 1].loop;
1942		2247
1943	if (!EV_A)	2248	if (!EV_A)
1944	return;	2249	return;
1945	#endif	2250	#endif
1946		2251
1947	if (!ev_active (&pipe_w))
1948	return;
1949
1950	signals [signum - 1].pending = 1;	2252	signals [signum - 1].pending = 1;
1951	evpipe_write (EV_A_ &sig_pending);	2253	evpipe_write (EV_A_ &sig_pending);
1952	}	2254	}
1953		2255
1954	static void	2256	static void
…		…
1960		2262
1961	ev_feed_signal (signum);	2263	ev_feed_signal (signum);
1962	}	2264	}
1963		2265
1964	void noinline	2266	void noinline
1965	ev_feed_signal_event (EV_P_ int signum)	2267	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1966	{	2268	{
1967	WL w;	2269	WL w;
1968		2270
1969	if (expect_false (signum <= 0 || signum > EV_NSIG))	2271	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1970	return;	2272	return;
1971		2273
1972	--signum;	2274	--signum;
1973		2275
1974	#if EV_MULTIPLICITY	2276	#if EV_MULTIPLICITY
…		…
1978	if (expect_false (signals [signum].loop != EV_A))	2280	if (expect_false (signals [signum].loop != EV_A))
1979	return;	2281	return;
1980	#endif	2282	#endif
1981		2283
1982	signals [signum].pending = 0;	2284	signals [signum].pending = 0;
		2285	ECB_MEMORY_FENCE_RELEASE;
1983		2286
1984	for (w = signals [signum].head; w; w = w->next)	2287	for (w = signals [signum].head; w; w = w->next)
1985	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2288	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1986	}	2289	}
1987		2290
…		…
2086	#if EV_USE_SELECT	2389	#if EV_USE_SELECT
2087	# include "ev_select.c"	2390	# include "ev_select.c"
2088	#endif	2391	#endif
2089		2392
2090	int ecb_cold	2393	int ecb_cold
2091	ev_version_major (void)	2394	ev_version_major (void) EV_THROW
2092	{	2395	{
2093	return EV_VERSION_MAJOR;	2396	return EV_VERSION_MAJOR;
2094	}	2397	}
2095		2398
2096	int ecb_cold	2399	int ecb_cold
2097	ev_version_minor (void)	2400	ev_version_minor (void) EV_THROW
2098	{	2401	{
2099	return EV_VERSION_MINOR;	2402	return EV_VERSION_MINOR;
2100	}	2403	}
2101		2404
2102	/* return true if we are running with elevated privileges and should ignore env variables */	2405	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2110	|| getgid () != getegid ();	2413	|| getgid () != getegid ();
2111	#endif	2414	#endif
2112	}	2415	}
2113		2416
2114	unsigned int ecb_cold	2417	unsigned int ecb_cold
2115	ev_supported_backends (void)	2418	ev_supported_backends (void) EV_THROW
2116	{	2419	{
2117	unsigned int flags = 0;	2420	unsigned int flags = 0;
2118		2421
2119	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2422	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2120	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2423	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2124		2427
2125	return flags;	2428	return flags;
2126	}	2429	}
2127		2430
2128	unsigned int ecb_cold	2431	unsigned int ecb_cold
2129	ev_recommended_backends (void)	2432	ev_recommended_backends (void) EV_THROW
2130	{	2433	{
2131	unsigned int flags = ev_supported_backends ();	2434	unsigned int flags = ev_supported_backends ();
2132		2435
2133	#ifndef __NetBSD__	2436	#ifndef __NetBSD__
2134	/* kqueue is borked on everything but netbsd apparently */	2437	/* kqueue is borked on everything but netbsd apparently */
…		…
2146		2449
2147	return flags;	2450	return flags;
2148	}	2451	}
2149		2452
2150	unsigned int ecb_cold	2453	unsigned int ecb_cold
2151	ev_embeddable_backends (void)	2454	ev_embeddable_backends (void) EV_THROW
2152	{	2455	{
2153	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2456	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2154		2457
2155	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2458	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2156	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2459	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2158		2461
2159	return flags;	2462	return flags;
2160	}	2463	}
2161		2464
2162	unsigned int	2465	unsigned int
2163	ev_backend (EV_P)	2466	ev_backend (EV_P) EV_THROW
2164	{	2467	{
2165	return backend;	2468	return backend;
2166	}	2469	}
2167		2470
2168	#if EV_FEATURE_API	2471	#if EV_FEATURE_API
2169	unsigned int	2472	unsigned int
2170	ev_iteration (EV_P)	2473	ev_iteration (EV_P) EV_THROW
2171	{	2474	{
2172	return loop_count;	2475	return loop_count;
2173	}	2476	}
2174		2477
2175	unsigned int	2478	unsigned int
2176	ev_depth (EV_P)	2479	ev_depth (EV_P) EV_THROW
2177	{	2480	{
2178	return loop_depth;	2481	return loop_depth;
2179	}	2482	}
2180		2483
2181	void	2484	void
2182	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2485	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2183	{	2486	{
2184	io_blocktime = interval;	2487	io_blocktime = interval;
2185	}	2488	}
2186		2489
2187	void	2490	void
2188	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2491	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189	{	2492	{
2190	timeout_blocktime = interval;	2493	timeout_blocktime = interval;
2191	}	2494	}
2192		2495
2193	void	2496	void
2194	ev_set_userdata (EV_P_ void *data)	2497	ev_set_userdata (EV_P_ void *data) EV_THROW
2195	{	2498	{
2196	userdata = data;	2499	userdata = data;
2197	}	2500	}
2198		2501
2199	void *	2502	void *
2200	ev_userdata (EV_P)	2503	ev_userdata (EV_P) EV_THROW
2201	{	2504	{
2202	return userdata;	2505	return userdata;
2203	}	2506	}
2204		2507
2205	void	2508	void
2206	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2509	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2207	{	2510	{
2208	invoke_cb = invoke_pending_cb;	2511	invoke_cb = invoke_pending_cb;
2209	}	2512	}
2210		2513
2211	void	2514	void
2212	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2515	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2213	{	2516	{
2214	release_cb = release;	2517	release_cb = release;
2215	acquire_cb = acquire;	2518	acquire_cb = acquire;
2216	}	2519	}
2217	#endif	2520	#endif
2218		2521
2219	/* initialise a loop structure, must be zero-initialised */	2522	/* initialise a loop structure, must be zero-initialised */
2220	static void noinline ecb_cold	2523	static void noinline ecb_cold
2221	loop_init (EV_P_ unsigned int flags)	2524	loop_init (EV_P_ unsigned int flags) EV_THROW
2222	{	2525	{
2223	if (!backend)	2526	if (!backend)
2224	{	2527	{
2225	origflags = flags;	2528	origflags = flags;
2226		2529
…		…
2271	#if EV_ASYNC_ENABLE	2574	#if EV_ASYNC_ENABLE
2272	async_pending = 0;	2575	async_pending = 0;
2273	#endif	2576	#endif
2274	pipe_write_skipped = 0;	2577	pipe_write_skipped = 0;
2275	pipe_write_wanted = 0;	2578	pipe_write_wanted = 0;
		2579	evpipe [0] = -1;
		2580	evpipe [1] = -1;
2276	#if EV_USE_INOTIFY	2581	#if EV_USE_INOTIFY
2277	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2582	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2278	#endif	2583	#endif
2279	#if EV_USE_SIGNALFD	2584	#if EV_USE_SIGNALFD
2280	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2585	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2331	EV_INVOKE_PENDING;	2636	EV_INVOKE_PENDING;
2332	}	2637	}
2333	#endif	2638	#endif
2334		2639
2335	#if EV_CHILD_ENABLE	2640	#if EV_CHILD_ENABLE
2336	if (ev_is_active (&childev))	2641	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2337	{	2642	{
2338	ev_ref (EV_A); /* child watcher */	2643	ev_ref (EV_A); /* child watcher */
2339	ev_signal_stop (EV_A_ &childev);	2644	ev_signal_stop (EV_A_ &childev);
2340	}	2645	}
2341	#endif	2646	#endif
…		…
2343	if (ev_is_active (&pipe_w))	2648	if (ev_is_active (&pipe_w))
2344	{	2649	{
2345	/*ev_ref (EV_A);*/	2650	/*ev_ref (EV_A);*/
2346	/*ev_io_stop (EV_A_ &pipe_w);*/	2651	/*ev_io_stop (EV_A_ &pipe_w);*/
2347		2652
2348	#if EV_USE_EVENTFD
2349	if (evfd >= 0)
2350	close (evfd);
2351	#endif
2352
2353	if (evpipe [0] >= 0)
2354	{
2355	EV_WIN32_CLOSE_FD (evpipe [0]);	2653	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2356	EV_WIN32_CLOSE_FD (evpipe [1]);	2654	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2357	}
2358	}	2655	}
2359		2656
2360	#if EV_USE_SIGNALFD	2657	#if EV_USE_SIGNALFD
2361	if (ev_is_active (&sigfd_w))	2658	if (ev_is_active (&sigfd_w))
2362	close (sigfd);	2659	close (sigfd);
…		…
2448	#endif	2745	#endif
2449	#if EV_USE_INOTIFY	2746	#if EV_USE_INOTIFY
2450	infy_fork (EV_A);	2747	infy_fork (EV_A);
2451	#endif	2748	#endif
2452		2749
		2750	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2453	if (ev_is_active (&pipe_w))	2751	if (ev_is_active (&pipe_w))
2454	{	2752	{
2455	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2753	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2456		2754
2457	ev_ref (EV_A);	2755	ev_ref (EV_A);
2458	ev_io_stop (EV_A_ &pipe_w);	2756	ev_io_stop (EV_A_ &pipe_w);
2459		2757
2460	#if EV_USE_EVENTFD
2461	if (evfd >= 0)
2462	close (evfd);
2463	#endif
2464
2465	if (evpipe [0] >= 0)	2758	if (evpipe [0] >= 0)
2466	{
2467	EV_WIN32_CLOSE_FD (evpipe [0]);	2759	EV_WIN32_CLOSE_FD (evpipe [0]);
2468	EV_WIN32_CLOSE_FD (evpipe [1]);
2469	}
2470		2760
2471	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2472	evpipe_init (EV_A);	2761	evpipe_init (EV_A);
2473	/* now iterate over everything, in case we missed something */	2762	/* iterate over everything, in case we missed something before */
2474	pipecb (EV_A_ &pipe_w, EV_READ);	2763	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2475	#endif
2476	}	2764	}
		2765	#endif
2477		2766
2478	postfork = 0;	2767	postfork = 0;
2479	}	2768	}
2480		2769
2481	#if EV_MULTIPLICITY	2770	#if EV_MULTIPLICITY
2482		2771
2483	struct ev_loop * ecb_cold	2772	struct ev_loop * ecb_cold
2484	ev_loop_new (unsigned int flags)	2773	ev_loop_new (unsigned int flags) EV_THROW
2485	{	2774	{
2486	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2775	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2487		2776
2488	memset (EV_A, 0, sizeof (struct ev_loop));	2777	memset (EV_A, 0, sizeof (struct ev_loop));
2489	loop_init (EV_A_ flags);	2778	loop_init (EV_A_ flags);
…		…
2533	}	2822	}
2534	#endif	2823	#endif
2535		2824
2536	#if EV_FEATURE_API	2825	#if EV_FEATURE_API
2537	void ecb_cold	2826	void ecb_cold
2538	ev_verify (EV_P)	2827	ev_verify (EV_P) EV_THROW
2539	{	2828	{
2540	#if EV_VERIFY	2829	#if EV_VERIFY
2541	int i;	2830	int i;
2542	WL w;	2831	WL w, w2;
2543		2832
2544	assert (activecnt >= -1);	2833	assert (activecnt >= -1);
2545		2834
2546	assert (fdchangemax >= fdchangecnt);	2835	assert (fdchangemax >= fdchangecnt);
2547	for (i = 0; i < fdchangecnt; ++i)	2836	for (i = 0; i < fdchangecnt; ++i)
2548	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2837	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2549		2838
2550	assert (anfdmax >= 0);	2839	assert (anfdmax >= 0);
2551	for (i = 0; i < anfdmax; ++i)	2840	for (i = 0; i < anfdmax; ++i)
		2841	{
		2842	int j = 0;
		2843
2552	for (w = anfds [i].head; w; w = w->next)	2844	for (w = w2 = anfds [i].head; w; w = w->next)
2553	{	2845	{
2554	verify_watcher (EV_A_ (W)w);	2846	verify_watcher (EV_A_ (W)w);
		2847
		2848	if (j++ & 1)
		2849	{
		2850	assert (("libev: io watcher list contains a loop", w != w2));
		2851	w2 = w2->next;
		2852	}
		2853
2555	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2854	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2556	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2855	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2557	}	2856	}
		2857	}
2558		2858
2559	assert (timermax >= timercnt);	2859	assert (timermax >= timercnt);
2560	verify_heap (EV_A_ timers, timercnt);	2860	verify_heap (EV_A_ timers, timercnt);
2561		2861
2562	#if EV_PERIODIC_ENABLE	2862	#if EV_PERIODIC_ENABLE
…		…
2612	#if EV_MULTIPLICITY	2912	#if EV_MULTIPLICITY
2613	struct ev_loop * ecb_cold	2913	struct ev_loop * ecb_cold
2614	#else	2914	#else
2615	int	2915	int
2616	#endif	2916	#endif
2617	ev_default_loop (unsigned int flags)	2917	ev_default_loop (unsigned int flags) EV_THROW
2618	{	2918	{
2619	if (!ev_default_loop_ptr)	2919	if (!ev_default_loop_ptr)
2620	{	2920	{
2621	#if EV_MULTIPLICITY	2921	#if EV_MULTIPLICITY
2622	EV_P = ev_default_loop_ptr = &default_loop_struct;	2922	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2641		2941
2642	return ev_default_loop_ptr;	2942	return ev_default_loop_ptr;
2643	}	2943	}
2644		2944
2645	void	2945	void
2646	ev_loop_fork (EV_P)	2946	ev_loop_fork (EV_P) EV_THROW
2647	{	2947	{
2648	postfork = 1; /* must be in line with ev_default_fork */	2948	postfork = 1;
2649	}	2949	}
2650		2950
2651	/*****************************************************************************/	2951	/*****************************************************************************/
2652		2952
2653	void	2953	void
…		…
2655	{	2955	{
2656	EV_CB_INVOKE ((W)w, revents);	2956	EV_CB_INVOKE ((W)w, revents);
2657	}	2957	}
2658		2958
2659	unsigned int	2959	unsigned int
2660	ev_pending_count (EV_P)	2960	ev_pending_count (EV_P) EV_THROW
2661	{	2961	{
2662	int pri;	2962	int pri;
2663	unsigned int count = 0;	2963	unsigned int count = 0;
2664		2964
2665	for (pri = NUMPRI; pri--; )	2965	for (pri = NUMPRI; pri--; )
…		…
2669	}	2969	}
2670		2970
2671	void noinline	2971	void noinline
2672	ev_invoke_pending (EV_P)	2972	ev_invoke_pending (EV_P)
2673	{	2973	{
2674	int pri;	2974	pendingpri = NUMPRI;
2675		2975
2676	for (pri = NUMPRI; pri--; )	2976	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2977	{
		2978	--pendingpri;
		2979
2677	while (pendingcnt [pri])	2980	while (pendingcnt [pendingpri])
2678	{	2981	{
2679	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2982	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2680		2983
2681	p->w->pending = 0;	2984	p->w->pending = 0;
2682	EV_CB_INVOKE (p->w, p->events);	2985	EV_CB_INVOKE (p->w, p->events);
2683	EV_FREQUENT_CHECK;	2986	EV_FREQUENT_CHECK;
2684	}	2987	}
		2988	}
2685	}	2989	}
2686		2990
2687	#if EV_IDLE_ENABLE	2991	#if EV_IDLE_ENABLE
2688	/* make idle watchers pending. this handles the "call-idle */	2992	/* make idle watchers pending. this handles the "call-idle */
2689	/* only when higher priorities are idle" logic */	2993	/* only when higher priorities are idle" logic */
…		…
2779	{	3083	{
2780	EV_FREQUENT_CHECK;	3084	EV_FREQUENT_CHECK;
2781		3085
2782	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3086	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2783	{	3087	{
2784	int feed_count = 0;
2785
2786	do	3088	do
2787	{	3089	{
2788	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3090	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2789		3091
2790	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3092	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2924		3226
2925	mn_now = ev_rt_now;	3227	mn_now = ev_rt_now;
2926	}	3228	}
2927	}	3229	}
2928		3230
2929	void	3231	int
2930	ev_run (EV_P_ int flags)	3232	ev_run (EV_P_ int flags)
2931	{	3233	{
2932	#if EV_FEATURE_API	3234	#if EV_FEATURE_API
2933	++loop_depth;	3235	++loop_depth;
2934	#endif	3236	#endif
…		…
3049	backend_poll (EV_A_ waittime);	3351	backend_poll (EV_A_ waittime);
3050	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3352	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3051		3353
3052	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3354	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3053		3355
		3356	ECB_MEMORY_FENCE_ACQUIRE;
3054	if (pipe_write_skipped)	3357	if (pipe_write_skipped)
3055	{	3358	{
3056	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3359	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3057	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3360	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3058	}	3361	}
…		…
3091	loop_done = EVBREAK_CANCEL;	3394	loop_done = EVBREAK_CANCEL;
3092		3395
3093	#if EV_FEATURE_API	3396	#if EV_FEATURE_API
3094	--loop_depth;	3397	--loop_depth;
3095	#endif	3398	#endif
		3399
		3400	return activecnt;
3096	}	3401	}
3097		3402
3098	void	3403	void
3099	ev_break (EV_P_ int how)	3404	ev_break (EV_P_ int how) EV_THROW
3100	{	3405	{
3101	loop_done = how;	3406	loop_done = how;
3102	}	3407	}
3103		3408
3104	void	3409	void
3105	ev_ref (EV_P)	3410	ev_ref (EV_P) EV_THROW
3106	{	3411	{
3107	++activecnt;	3412	++activecnt;
3108	}	3413	}
3109		3414
3110	void	3415	void
3111	ev_unref (EV_P)	3416	ev_unref (EV_P) EV_THROW
3112	{	3417	{
3113	--activecnt;	3418	--activecnt;
3114	}	3419	}
3115		3420
3116	void	3421	void
3117	ev_now_update (EV_P)	3422	ev_now_update (EV_P) EV_THROW
3118	{	3423	{
3119	time_update (EV_A_ 1e100);	3424	time_update (EV_A_ 1e100);
3120	}	3425	}
3121		3426
3122	void	3427	void
3123	ev_suspend (EV_P)	3428	ev_suspend (EV_P) EV_THROW
3124	{	3429	{
3125	ev_now_update (EV_A);	3430	ev_now_update (EV_A);
3126	}	3431	}
3127		3432
3128	void	3433	void
3129	ev_resume (EV_P)	3434	ev_resume (EV_P) EV_THROW
3130	{	3435	{
3131	ev_tstamp mn_prev = mn_now;	3436	ev_tstamp mn_prev = mn_now;
3132		3437
3133	ev_now_update (EV_A);	3438	ev_now_update (EV_A);
3134	timers_reschedule (EV_A_ mn_now - mn_prev);	3439	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3173	w->pending = 0;	3478	w->pending = 0;
3174	}	3479	}
3175	}	3480	}
3176		3481
3177	int	3482	int
3178	ev_clear_pending (EV_P_ void *w)	3483	ev_clear_pending (EV_P_ void *w) EV_THROW
3179	{	3484	{
3180	W w_ = (W)w;	3485	W w_ = (W)w;
3181	int pending = w_->pending;	3486	int pending = w_->pending;
3182		3487
3183	if (expect_true (pending))	3488	if (expect_true (pending))
…		…
3216	}	3521	}
3217		3522
3218	/*****************************************************************************/	3523	/*****************************************************************************/
3219		3524
3220	void noinline	3525	void noinline
3221	ev_io_start (EV_P_ ev_io *w)	3526	ev_io_start (EV_P_ ev_io *w) EV_THROW
3222	{	3527	{
3223	int fd = w->fd;	3528	int fd = w->fd;
3224		3529
3225	if (expect_false (ev_is_active (w)))	3530	if (expect_false (ev_is_active (w)))
3226	return;	3531	return;
…		…
3232		3537
3233	ev_start (EV_A_ (W)w, 1);	3538	ev_start (EV_A_ (W)w, 1);
3234	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3539	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3235	wlist_add (&anfds[fd].head, (WL)w);	3540	wlist_add (&anfds[fd].head, (WL)w);
3236		3541
		3542	/* common bug, apparently */
		3543	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3544
3237	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3545	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3238	w->events &= ~EV__IOFDSET;	3546	w->events &= ~EV__IOFDSET;
3239		3547
3240	EV_FREQUENT_CHECK;	3548	EV_FREQUENT_CHECK;
3241	}	3549	}
3242		3550
3243	void noinline	3551	void noinline
3244	ev_io_stop (EV_P_ ev_io *w)	3552	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3245	{	3553	{
3246	clear_pending (EV_A_ (W)w);	3554	clear_pending (EV_A_ (W)w);
3247	if (expect_false (!ev_is_active (w)))	3555	if (expect_false (!ev_is_active (w)))
3248	return;	3556	return;
3249		3557
…		…
3258		3566
3259	EV_FREQUENT_CHECK;	3567	EV_FREQUENT_CHECK;
3260	}	3568	}
3261		3569
3262	void noinline	3570	void noinline
3263	ev_timer_start (EV_P_ ev_timer *w)	3571	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3264	{	3572	{
3265	if (expect_false (ev_is_active (w)))	3573	if (expect_false (ev_is_active (w)))
3266	return;	3574	return;
3267		3575
3268	ev_at (w) += mn_now;	3576	ev_at (w) += mn_now;
…		…
3282		3590
3283	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3591	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3284	}	3592	}
3285		3593
3286	void noinline	3594	void noinline
3287	ev_timer_stop (EV_P_ ev_timer *w)	3595	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3288	{	3596	{
3289	clear_pending (EV_A_ (W)w);	3597	clear_pending (EV_A_ (W)w);
3290	if (expect_false (!ev_is_active (w)))	3598	if (expect_false (!ev_is_active (w)))
3291	return;	3599	return;
3292		3600
…		…
3312		3620
3313	EV_FREQUENT_CHECK;	3621	EV_FREQUENT_CHECK;
3314	}	3622	}
3315		3623
3316	void noinline	3624	void noinline
3317	ev_timer_again (EV_P_ ev_timer *w)	3625	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3318	{	3626	{
3319	EV_FREQUENT_CHECK;	3627	EV_FREQUENT_CHECK;
3320		3628
3321	clear_pending (EV_A_ (W)w);	3629	clear_pending (EV_A_ (W)w);
3322		3630
…		…
3339		3647
3340	EV_FREQUENT_CHECK;	3648	EV_FREQUENT_CHECK;
3341	}	3649	}
3342		3650
3343	ev_tstamp	3651	ev_tstamp
3344	ev_timer_remaining (EV_P_ ev_timer *w)	3652	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3345	{	3653	{
3346	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3654	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3347	}	3655	}
3348		3656
3349	#if EV_PERIODIC_ENABLE	3657	#if EV_PERIODIC_ENABLE
3350	void noinline	3658	void noinline
3351	ev_periodic_start (EV_P_ ev_periodic *w)	3659	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3352	{	3660	{
3353	if (expect_false (ev_is_active (w)))	3661	if (expect_false (ev_is_active (w)))
3354	return;	3662	return;
3355		3663
3356	if (w->reschedule_cb)	3664	if (w->reschedule_cb)
…		…
3376		3684
3377	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3685	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3378	}	3686	}
3379		3687
3380	void noinline	3688	void noinline
3381	ev_periodic_stop (EV_P_ ev_periodic *w)	3689	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3382	{	3690	{
3383	clear_pending (EV_A_ (W)w);	3691	clear_pending (EV_A_ (W)w);
3384	if (expect_false (!ev_is_active (w)))	3692	if (expect_false (!ev_is_active (w)))
3385	return;	3693	return;
3386		3694
…		…
3404		3712
3405	EV_FREQUENT_CHECK;	3713	EV_FREQUENT_CHECK;
3406	}	3714	}
3407		3715
3408	void noinline	3716	void noinline
3409	ev_periodic_again (EV_P_ ev_periodic *w)	3717	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3410	{	3718	{
3411	/* TODO: use adjustheap and recalculation */	3719	/* TODO: use adjustheap and recalculation */
3412	ev_periodic_stop (EV_A_ w);	3720	ev_periodic_stop (EV_A_ w);
3413	ev_periodic_start (EV_A_ w);	3721	ev_periodic_start (EV_A_ w);
3414	}	3722	}
…		…
3419	#endif	3727	#endif
3420		3728
3421	#if EV_SIGNAL_ENABLE	3729	#if EV_SIGNAL_ENABLE
3422		3730
3423	void noinline	3731	void noinline
3424	ev_signal_start (EV_P_ ev_signal *w)	3732	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3425	{	3733	{
3426	if (expect_false (ev_is_active (w)))	3734	if (expect_false (ev_is_active (w)))
3427	return;	3735	return;
3428		3736
3429	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3737	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3431	#if EV_MULTIPLICITY	3739	#if EV_MULTIPLICITY
3432	assert (("libev: a signal must not be attached to two different loops",	3740	assert (("libev: a signal must not be attached to two different loops",
3433	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3741	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3434		3742
3435	signals [w->signum - 1].loop = EV_A;	3743	signals [w->signum - 1].loop = EV_A;
		3744	ECB_MEMORY_FENCE_RELEASE;
3436	#endif	3745	#endif
3437		3746
3438	EV_FREQUENT_CHECK;	3747	EV_FREQUENT_CHECK;
3439		3748
3440	#if EV_USE_SIGNALFD	3749	#if EV_USE_SIGNALFD
…		…
3500		3809
3501	EV_FREQUENT_CHECK;	3810	EV_FREQUENT_CHECK;
3502	}	3811	}
3503		3812
3504	void noinline	3813	void noinline
3505	ev_signal_stop (EV_P_ ev_signal *w)	3814	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3506	{	3815	{
3507	clear_pending (EV_A_ (W)w);	3816	clear_pending (EV_A_ (W)w);
3508	if (expect_false (!ev_is_active (w)))	3817	if (expect_false (!ev_is_active (w)))
3509	return;	3818	return;
3510		3819
…		…
3541	#endif	3850	#endif
3542		3851
3543	#if EV_CHILD_ENABLE	3852	#if EV_CHILD_ENABLE
3544		3853
3545	void	3854	void
3546	ev_child_start (EV_P_ ev_child *w)	3855	ev_child_start (EV_P_ ev_child *w) EV_THROW
3547	{	3856	{
3548	#if EV_MULTIPLICITY	3857	#if EV_MULTIPLICITY
3549	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3858	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3550	#endif	3859	#endif
3551	if (expect_false (ev_is_active (w)))	3860	if (expect_false (ev_is_active (w)))
…		…
3558		3867
3559	EV_FREQUENT_CHECK;	3868	EV_FREQUENT_CHECK;
3560	}	3869	}
3561		3870
3562	void	3871	void
3563	ev_child_stop (EV_P_ ev_child *w)	3872	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3564	{	3873	{
3565	clear_pending (EV_A_ (W)w);	3874	clear_pending (EV_A_ (W)w);
3566	if (expect_false (!ev_is_active (w)))	3875	if (expect_false (!ev_is_active (w)))
3567	return;	3876	return;
3568		3877
…		…
3595	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3904	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3596		3905
3597	static void noinline	3906	static void noinline
3598	infy_add (EV_P_ ev_stat *w)	3907	infy_add (EV_P_ ev_stat *w)
3599	{	3908	{
3600	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	3909	w->wd = inotify_add_watch (fs_fd, w->path,
		3910	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3911	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3912	| IN_DONT_FOLLOW | IN_MASK_ADD);
3601		3913
3602	if (w->wd >= 0)	3914	if (w->wd >= 0)
3603	{	3915	{
3604	struct statfs sfs;	3916	struct statfs sfs;
3605		3917
…		…
3609		3921
3610	if (!fs_2625)	3922	if (!fs_2625)
3611	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3923	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3612	else if (!statfs (w->path, &sfs)	3924	else if (!statfs (w->path, &sfs)
3613	&& (sfs.f_type == 0x1373 /* devfs */	3925	&& (sfs.f_type == 0x1373 /* devfs */
		3926	|| sfs.f_type == 0x4006 /* fat */
		3927	|| sfs.f_type == 0x4d44 /* msdos */
3614	|| sfs.f_type == 0xEF53 /* ext2/3 */	3928	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3929	|| sfs.f_type == 0x72b6 /* jffs2 */
		3930	|| sfs.f_type == 0x858458f6 /* ramfs */
		3931	|| sfs.f_type == 0x5346544e /* ntfs */
3615	|| sfs.f_type == 0x3153464a /* jfs */	3932	|| sfs.f_type == 0x3153464a /* jfs */
		3933	|| sfs.f_type == 0x9123683e /* btrfs */
3616	|| sfs.f_type == 0x52654973 /* reiser3 */	3934	|| sfs.f_type == 0x52654973 /* reiser3 */
3617	|| sfs.f_type == 0x01021994 /* tempfs */	3935	|| sfs.f_type == 0x01021994 /* tmpfs */
3618	|| sfs.f_type == 0x58465342 /* xfs */))	3936	|| sfs.f_type == 0x58465342 /* xfs */))
3619	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3937	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3620	else	3938	else
3621	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3939	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3622	}	3940	}
…		…
3735	}	4053	}
3736		4054
3737	inline_size int	4055	inline_size int
3738	infy_newfd (void)	4056	infy_newfd (void)
3739	{	4057	{
3740	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4058	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3741	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4059	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3742	if (fd >= 0)	4060	if (fd >= 0)
3743	return fd;	4061	return fd;
3744	#endif	4062	#endif
3745	return inotify_init ();	4063	return inotify_init ();
…		…
3820	#else	4138	#else
3821	# define EV_LSTAT(p,b) lstat (p, b)	4139	# define EV_LSTAT(p,b) lstat (p, b)
3822	#endif	4140	#endif
3823		4141
3824	void	4142	void
3825	ev_stat_stat (EV_P_ ev_stat *w)	4143	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3826	{	4144	{
3827	if (lstat (w->path, &w->attr) < 0)	4145	if (lstat (w->path, &w->attr) < 0)
3828	w->attr.st_nlink = 0;	4146	w->attr.st_nlink = 0;
3829	else if (!w->attr.st_nlink)	4147	else if (!w->attr.st_nlink)
3830	w->attr.st_nlink = 1;	4148	w->attr.st_nlink = 1;
…		…
3869	ev_feed_event (EV_A_ w, EV_STAT);	4187	ev_feed_event (EV_A_ w, EV_STAT);
3870	}	4188	}
3871	}	4189	}
3872		4190
3873	void	4191	void
3874	ev_stat_start (EV_P_ ev_stat *w)	4192	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3875	{	4193	{
3876	if (expect_false (ev_is_active (w)))	4194	if (expect_false (ev_is_active (w)))
3877	return;	4195	return;
3878		4196
3879	ev_stat_stat (EV_A_ w);	4197	ev_stat_stat (EV_A_ w);
…		…
3900		4218
3901	EV_FREQUENT_CHECK;	4219	EV_FREQUENT_CHECK;
3902	}	4220	}
3903		4221
3904	void	4222	void
3905	ev_stat_stop (EV_P_ ev_stat *w)	4223	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3906	{	4224	{
3907	clear_pending (EV_A_ (W)w);	4225	clear_pending (EV_A_ (W)w);
3908	if (expect_false (!ev_is_active (w)))	4226	if (expect_false (!ev_is_active (w)))
3909	return;	4227	return;
3910		4228
…		…
3926	}	4244	}
3927	#endif	4245	#endif
3928		4246
3929	#if EV_IDLE_ENABLE	4247	#if EV_IDLE_ENABLE
3930	void	4248	void
3931	ev_idle_start (EV_P_ ev_idle *w)	4249	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3932	{	4250	{
3933	if (expect_false (ev_is_active (w)))	4251	if (expect_false (ev_is_active (w)))
3934	return;	4252	return;
3935		4253
3936	pri_adjust (EV_A_ (W)w);	4254	pri_adjust (EV_A_ (W)w);
…		…
3949		4267
3950	EV_FREQUENT_CHECK;	4268	EV_FREQUENT_CHECK;
3951	}	4269	}
3952		4270
3953	void	4271	void
3954	ev_idle_stop (EV_P_ ev_idle *w)	4272	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3955	{	4273	{
3956	clear_pending (EV_A_ (W)w);	4274	clear_pending (EV_A_ (W)w);
3957	if (expect_false (!ev_is_active (w)))	4275	if (expect_false (!ev_is_active (w)))
3958	return;	4276	return;
3959		4277
…		…
3973	}	4291	}
3974	#endif	4292	#endif
3975		4293
3976	#if EV_PREPARE_ENABLE	4294	#if EV_PREPARE_ENABLE
3977	void	4295	void
3978	ev_prepare_start (EV_P_ ev_prepare *w)	4296	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3979	{	4297	{
3980	if (expect_false (ev_is_active (w)))	4298	if (expect_false (ev_is_active (w)))
3981	return;	4299	return;
3982		4300
3983	EV_FREQUENT_CHECK;	4301	EV_FREQUENT_CHECK;
…		…
3988		4306
3989	EV_FREQUENT_CHECK;	4307	EV_FREQUENT_CHECK;
3990	}	4308	}
3991		4309
3992	void	4310	void
3993	ev_prepare_stop (EV_P_ ev_prepare *w)	4311	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3994	{	4312	{
3995	clear_pending (EV_A_ (W)w);	4313	clear_pending (EV_A_ (W)w);
3996	if (expect_false (!ev_is_active (w)))	4314	if (expect_false (!ev_is_active (w)))
3997	return;	4315	return;
3998		4316
…		…
4011	}	4329	}
4012	#endif	4330	#endif
4013		4331
4014	#if EV_CHECK_ENABLE	4332	#if EV_CHECK_ENABLE
4015	void	4333	void
4016	ev_check_start (EV_P_ ev_check *w)	4334	ev_check_start (EV_P_ ev_check *w) EV_THROW
4017	{	4335	{
4018	if (expect_false (ev_is_active (w)))	4336	if (expect_false (ev_is_active (w)))
4019	return;	4337	return;
4020		4338
4021	EV_FREQUENT_CHECK;	4339	EV_FREQUENT_CHECK;
…		…
4026		4344
4027	EV_FREQUENT_CHECK;	4345	EV_FREQUENT_CHECK;
4028	}	4346	}
4029		4347
4030	void	4348	void
4031	ev_check_stop (EV_P_ ev_check *w)	4349	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4032	{	4350	{
4033	clear_pending (EV_A_ (W)w);	4351	clear_pending (EV_A_ (W)w);
4034	if (expect_false (!ev_is_active (w)))	4352	if (expect_false (!ev_is_active (w)))
4035	return;	4353	return;
4036		4354
…		…
4049	}	4367	}
4050	#endif	4368	#endif
4051		4369
4052	#if EV_EMBED_ENABLE	4370	#if EV_EMBED_ENABLE
4053	void noinline	4371	void noinline
4054	ev_embed_sweep (EV_P_ ev_embed *w)	4372	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4055	{	4373	{
4056	ev_run (w->other, EVRUN_NOWAIT);	4374	ev_run (w->other, EVRUN_NOWAIT);
4057	}	4375	}
4058		4376
4059	static void	4377	static void
…		…
4107	ev_idle_stop (EV_A_ idle);	4425	ev_idle_stop (EV_A_ idle);
4108	}	4426	}
4109	#endif	4427	#endif
4110		4428
4111	void	4429	void
4112	ev_embed_start (EV_P_ ev_embed *w)	4430	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4113	{	4431	{
4114	if (expect_false (ev_is_active (w)))	4432	if (expect_false (ev_is_active (w)))
4115	return;	4433	return;
4116		4434
4117	{	4435	{
…		…
4138		4456
4139	EV_FREQUENT_CHECK;	4457	EV_FREQUENT_CHECK;
4140	}	4458	}
4141		4459
4142	void	4460	void
4143	ev_embed_stop (EV_P_ ev_embed *w)	4461	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4144	{	4462	{
4145	clear_pending (EV_A_ (W)w);	4463	clear_pending (EV_A_ (W)w);
4146	if (expect_false (!ev_is_active (w)))	4464	if (expect_false (!ev_is_active (w)))
4147	return;	4465	return;
4148		4466
…		…
4158	}	4476	}
4159	#endif	4477	#endif
4160		4478
4161	#if EV_FORK_ENABLE	4479	#if EV_FORK_ENABLE
4162	void	4480	void
4163	ev_fork_start (EV_P_ ev_fork *w)	4481	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4164	{	4482	{
4165	if (expect_false (ev_is_active (w)))	4483	if (expect_false (ev_is_active (w)))
4166	return;	4484	return;
4167		4485
4168	EV_FREQUENT_CHECK;	4486	EV_FREQUENT_CHECK;
…		…
4173		4491
4174	EV_FREQUENT_CHECK;	4492	EV_FREQUENT_CHECK;
4175	}	4493	}
4176		4494
4177	void	4495	void
4178	ev_fork_stop (EV_P_ ev_fork *w)	4496	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4179	{	4497	{
4180	clear_pending (EV_A_ (W)w);	4498	clear_pending (EV_A_ (W)w);
4181	if (expect_false (!ev_is_active (w)))	4499	if (expect_false (!ev_is_active (w)))
4182	return;	4500	return;
4183		4501
…		…
4196	}	4514	}
4197	#endif	4515	#endif
4198		4516
4199	#if EV_CLEANUP_ENABLE	4517	#if EV_CLEANUP_ENABLE
4200	void	4518	void
4201	ev_cleanup_start (EV_P_ ev_cleanup *w)	4519	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4202	{	4520	{
4203	if (expect_false (ev_is_active (w)))	4521	if (expect_false (ev_is_active (w)))
4204	return;	4522	return;
4205		4523
4206	EV_FREQUENT_CHECK;	4524	EV_FREQUENT_CHECK;
…		…
4213	ev_unref (EV_A);	4531	ev_unref (EV_A);
4214	EV_FREQUENT_CHECK;	4532	EV_FREQUENT_CHECK;
4215	}	4533	}
4216		4534
4217	void	4535	void
4218	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4536	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4219	{	4537	{
4220	clear_pending (EV_A_ (W)w);	4538	clear_pending (EV_A_ (W)w);
4221	if (expect_false (!ev_is_active (w)))	4539	if (expect_false (!ev_is_active (w)))
4222	return;	4540	return;
4223		4541
…		…
4237	}	4555	}
4238	#endif	4556	#endif
4239		4557
4240	#if EV_ASYNC_ENABLE	4558	#if EV_ASYNC_ENABLE
4241	void	4559	void
4242	ev_async_start (EV_P_ ev_async *w)	4560	ev_async_start (EV_P_ ev_async *w) EV_THROW
4243	{	4561	{
4244	if (expect_false (ev_is_active (w)))	4562	if (expect_false (ev_is_active (w)))
4245	return;	4563	return;
4246		4564
4247	w->sent = 0;	4565	w->sent = 0;
…		…
4256		4574
4257	EV_FREQUENT_CHECK;	4575	EV_FREQUENT_CHECK;
4258	}	4576	}
4259		4577
4260	void	4578	void
4261	ev_async_stop (EV_P_ ev_async *w)	4579	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4262	{	4580	{
4263	clear_pending (EV_A_ (W)w);	4581	clear_pending (EV_A_ (W)w);
4264	if (expect_false (!ev_is_active (w)))	4582	if (expect_false (!ev_is_active (w)))
4265	return;	4583	return;
4266		4584
…		…
4277		4595
4278	EV_FREQUENT_CHECK;	4596	EV_FREQUENT_CHECK;
4279	}	4597	}
4280		4598
4281	void	4599	void
4282	ev_async_send (EV_P_ ev_async *w)	4600	ev_async_send (EV_P_ ev_async *w) EV_THROW
4283	{	4601	{
4284	w->sent = 1;	4602	w->sent = 1;
4285	evpipe_write (EV_A_ &async_pending);	4603	evpipe_write (EV_A_ &async_pending);
4286	}	4604	}
4287	#endif	4605	#endif
…		…
4324		4642
4325	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4643	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4326	}	4644	}
4327		4645
4328	void	4646	void
4329	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4647	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4330	{	4648	{
4331	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4649	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4332		4650
4333	if (expect_false (!once))	4651	if (expect_false (!once))
4334	{	4652	{
…		…
4356		4674
4357	/*****************************************************************************/	4675	/*****************************************************************************/
4358		4676
4359	#if EV_WALK_ENABLE	4677	#if EV_WALK_ENABLE
4360	void ecb_cold	4678	void ecb_cold
4361	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4679	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4362	{	4680	{
4363	int i, j;	4681	int i, j;
4364	ev_watcher_list *wl, *wn;	4682	ev_watcher_list *wl, *wn;
4365		4683
4366	if (types & (EV_IO | EV_EMBED))	4684	if (types & (EV_IO | EV_EMBED))

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