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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 1.449 by root, Sun Sep 23 21:21:58 2012 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
…		…
359	#endif	360	#endif
360		361
361	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	362	/* 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. */	363	/* which makes programs even slower. might work on other unices, too. */
363	#if EV_USE_CLOCK_SYSCALL	364	#if EV_USE_CLOCK_SYSCALL
364	# include <syscall.h>	365	# include <sys/syscall.h>
365	# ifdef SYS_clock_gettime	366	# ifdef SYS_clock_gettime
366	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	367	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
368	# define EV_USE_MONOTONIC 1	369	# define EV_USE_MONOTONIC 1
369	# else	370	# else
…		…
395	# define EV_USE_INOTIFY 0	396	# define EV_USE_INOTIFY 0
396	#endif	397	#endif
397		398
398	#if !EV_USE_NANOSLEEP	399	#if !EV_USE_NANOSLEEP
399	/* hp-ux has it in sys/time.h, which we unconditionally include above */	400	/* hp-ux has it in sys/time.h, which we unconditionally include above */
400	# if !defined(_WIN32) && !defined(__hpux)	401	# if !defined _WIN32 && !defined __hpux
401	# include <sys/select.h>	402	# include <sys/select.h>
402	# endif	403	# endif
403	#endif	404	#endif
404		405
405	#if EV_USE_INOTIFY	406	#if EV_USE_INOTIFY
…		…
408	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	409	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409	# ifndef IN_DONT_FOLLOW	410	# ifndef IN_DONT_FOLLOW
410	# undef EV_USE_INOTIFY	411	# undef EV_USE_INOTIFY
411	# define EV_USE_INOTIFY 0	412	# define EV_USE_INOTIFY 0
412	# endif	413	# endif
413	#endif
414
415	#if EV_SELECT_IS_WINSOCKET
416	# include <winsock.h>
417	#endif	414	#endif
418		415
419	#if EV_USE_EVENTFD	416	#if EV_USE_EVENTFD
420	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421	# include <stdint.h>	418	# include <stdint.h>
…		…
507	*/	504	*/
508		505
509	#ifndef ECB_H	506	#ifndef ECB_H
510	#define ECB_H	507	#define ECB_H
511		508
		509	/* 16 bits major, 16 bits minor */
		510	#define ECB_VERSION 0x00010001
		511
512	#ifdef _WIN32	512	#ifdef _WIN32
513	typedef signed char int8_t;	513	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	514	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	515	typedef signed short int16_t;
516	typedef unsigned short uint16_t;	516	typedef unsigned short uint16_t;
…		…
521	typedef unsigned long long uint64_t;	521	typedef unsigned long long uint64_t;
522	#else /* _MSC_VER || __BORLANDC__ */	522	#else /* _MSC_VER || __BORLANDC__ */
523	typedef signed __int64 int64_t;	523	typedef signed __int64 int64_t;
524	typedef unsigned __int64 uint64_t;	524	typedef unsigned __int64 uint64_t;
525	#endif	525	#endif
		526	#ifdef _WIN64
		527	#define ECB_PTRSIZE 8
		528	typedef uint64_t uintptr_t;
		529	typedef int64_t intptr_t;
		530	#else
		531	#define ECB_PTRSIZE 4
		532	typedef uint32_t uintptr_t;
		533	typedef int32_t intptr_t;
		534	#endif
		535	typedef intptr_t ptrdiff_t;
526	#else	536	#else
527	#include <inttypes.h>	537	#include <inttypes.h>
		538	#if UINTMAX_MAX > 0xffffffffU
		539	#define ECB_PTRSIZE 8
		540	#else
		541	#define ECB_PTRSIZE 4
		542	#endif
528	#endif	543	#endif
529		544
530	/* many compilers define _GNUC_ to some versions but then only implement	545	/* many compilers define _GNUC_ to some versions but then only implement
531	* what their idiot authors think are the "more important" extensions,	546	* what their idiot authors think are the "more important" extensions,
532	* causing enormous grief in return for some better fake benchmark numbers.	547	* causing enormous grief in return for some better fake benchmark numbers.
533	* or so.	548	* or so.
534	* we try to detect these and simply assume they are not gcc - if they have	549	* 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.	550	* an issue with that they should have done it right in the first place.
536	*/	551	*/
537	#ifndef ECB_GCC_VERSION	552	#ifndef ECB_GCC_VERSION
538	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	553	#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	554	#define ECB_GCC_VERSION(major,minor) 0
540	#else	555	#else
541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	556	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542	#endif	557	#endif
543	#endif	558	#endif
544		559
		560	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		561	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		562	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		563	#define ECB_CPP (__cplusplus+0)
		564	#define ECB_CPP11 (__cplusplus >= 201103L)
		565
545	/*****************************************************************************/	566	/*****************************************************************************/
546		567
547	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	568	/* 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 */	569	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549		570
550	#if ECB_NO_THREADS	571	#if ECB_NO_THREADS
551	# define ECB_NO_SMP 1	572	#define ECB_NO_SMP 1
552	#endif	573	#endif
553		574
554	#if ECB_NO_THREADS || ECB_NO_SMP	575	#if ECB_NO_SMP
555	#define ECB_MEMORY_FENCE do { } while (0)	576	#define ECB_MEMORY_FENCE do { } while (0)
556	#endif	577	#endif
557		578
558	#ifndef ECB_MEMORY_FENCE	579	#ifndef ECB_MEMORY_FENCE
559	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	580	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560	#if __i386 || __i386__	581	#if __i386 || __i386__
561	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	582	#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 */	583	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	584	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	585	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	586	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	587	#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 */	588	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	589	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	590	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	591	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	592	|| 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")	593	#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__ ) \	594	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	595	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	596	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576	#elif __sparc || __sparc__	597	#elif __sparc || __sparc__
577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")	598	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	599	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	600	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580	#elif defined(__s390__) || defined(__s390x__)	601	#elif defined __s390__ || defined __s390x__
581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	602	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		603	#elif defined __mips__
		604	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		605	#elif defined __alpha__
		606	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		607	#elif defined __hppa__
		608	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		610	#elif defined __ia64__
		611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
582	#endif	612	#endif
583	#endif	613	#endif
584	#endif	614	#endif
585		615
586	#ifndef ECB_MEMORY_FENCE	616	#ifndef ECB_MEMORY_FENCE
		617	#if ECB_GCC_VERSION(4,7)
		618	/* see comment below (stdatomic.h) about the C11 memory model. */
		619	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		620	#elif defined __clang && __has_feature (cxx_atomic)
		621	/* see comment below (stdatomic.h) about the C11 memory model. */
		622	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
587	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	623	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
588	#define ECB_MEMORY_FENCE __sync_synchronize ()	624	#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 */	625	#elif _MSC_VER >= 1400 /* VC++ 2005 */
592	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	626	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	627	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	628	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
595	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	629	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596	#elif defined(_WIN32)	630	#elif defined _WIN32
597	#include <WinNT.h>	631	#include <WinNT.h>
598	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	632	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	633	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600	#include <mbarrier.h>	634	#include <mbarrier.h>
601	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	635	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
602	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	636	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()	637	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		638	#elif __xlC__
		639	#define ECB_MEMORY_FENCE __sync ()
		640	#endif
		641	#endif
		642
		643	#ifndef ECB_MEMORY_FENCE
		644	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		645	/* we assume that these memory fences work on all variables/all memory accesses, */
		646	/* not just C11 atomics and atomic accesses */
		647	#include <stdatomic.h>
		648	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		649	/* any fence other than seq_cst, which isn't very efficient for us. */
		650	/* Why that is, we don't know - either the C11 memory model is quite useless */
		651	/* for most usages, or gcc and clang have a bug */
		652	/* I *currently* lean towards the latter, and inefficiently implement */
		653	/* all three of ecb's fences as a seq_cst fence */
		654	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
604	#endif	655	#endif
605	#endif	656	#endif
606		657
607	#ifndef ECB_MEMORY_FENCE	658	#ifndef ECB_MEMORY_FENCE
608	#if !ECB_AVOID_PTHREADS	659	#if !ECB_AVOID_PTHREADS
…		…
620	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	671	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)	672	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
622	#endif	673	#endif
623	#endif	674	#endif
624		675
625	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	676	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
626	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	677	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627	#endif	678	#endif
628		679
629	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	680	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
630	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	681	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631	#endif	682	#endif
632		683
633	/*****************************************************************************/	684	/*****************************************************************************/
634
635	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
636		685
637	#if __cplusplus	686	#if __cplusplus
638	#define ecb_inline static inline	687	#define ecb_inline static inline
639	#elif ECB_GCC_VERSION(2,5)	688	#elif ECB_GCC_VERSION(2,5)
640	#define ecb_inline static __inline__	689	#define ecb_inline static __inline__
…		…
679	#elif ECB_GCC_VERSION(3,0)	728	#elif ECB_GCC_VERSION(3,0)
680	#define ecb_decltype(x) __typeof(x)	729	#define ecb_decltype(x) __typeof(x)
681	#endif	730	#endif
682		731
683	#define ecb_noinline ecb_attribute ((__noinline__))	732	#define ecb_noinline ecb_attribute ((__noinline__))
684	#define ecb_noreturn ecb_attribute ((__noreturn__))
685	#define ecb_unused ecb_attribute ((__unused__))	733	#define ecb_unused ecb_attribute ((__unused__))
686	#define ecb_const ecb_attribute ((__const__))	734	#define ecb_const ecb_attribute ((__const__))
687	#define ecb_pure ecb_attribute ((__pure__))	735	#define ecb_pure ecb_attribute ((__pure__))
		736
		737	#if ECB_C11
		738	#define ecb_noreturn _Noreturn
		739	#else
		740	#define ecb_noreturn ecb_attribute ((__noreturn__))
		741	#endif
688		742
689	#if ECB_GCC_VERSION(4,3)	743	#if ECB_GCC_VERSION(4,3)
690	#define ecb_artificial ecb_attribute ((__artificial__))	744	#define ecb_artificial ecb_attribute ((__artificial__))
691	#define ecb_hot ecb_attribute ((__hot__))	745	#define ecb_hot ecb_attribute ((__hot__))
692	#define ecb_cold ecb_attribute ((__cold__))	746	#define ecb_cold ecb_attribute ((__cold__))
…		…
783		837
784	return r + ecb_ld32 (x);	838	return r + ecb_ld32 (x);
785	}	839	}
786	#endif	840	#endif
787		841
		842	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		843	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		844	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		845	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		846
788	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	847	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
789	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	848	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
790	{	849	{
791	return ( (x * 0x0802U & 0x22110U)	850	return ( (x * 0x0802U & 0x22110U)
792	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	851	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
1099	{	1158	{
1100	write (STDERR_FILENO, msg, strlen (msg));	1159	write (STDERR_FILENO, msg, strlen (msg));
1101	}	1160	}
1102	#endif	1161	#endif
1103		1162
1104	static void (*syserr_cb)(const char *msg);	1163	static void (*syserr_cb)(const char *msg) EV_THROW;
1105		1164
1106	void ecb_cold	1165	void ecb_cold
1107	ev_set_syserr_cb (void (*cb)(const char *msg))	1166	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1108	{	1167	{
1109	syserr_cb = cb;	1168	syserr_cb = cb;
1110	}	1169	}
1111		1170
1112	static void noinline ecb_cold	1171	static void noinline ecb_cold
…		…
1130	abort ();	1189	abort ();
1131	}	1190	}
1132	}	1191	}
1133		1192
1134	static void *	1193	static void *
1135	ev_realloc_emul (void *ptr, long size)	1194	ev_realloc_emul (void *ptr, long size) EV_THROW
1136	{	1195	{
1137	#if __GLIBC__
1138	return realloc (ptr, size);
1139	#else
1140	/* some systems, notably openbsd and darwin, fail to properly	1196	/* some systems, notably openbsd and darwin, fail to properly
1141	* implement realloc (x, 0) (as required by both ansi c-89 and	1197	* implement realloc (x, 0) (as required by both ansi c-89 and
1142	* the single unix specification, so work around them here.	1198	* the single unix specification, so work around them here.
		1199	* recently, also (at least) fedora and debian started breaking it,
		1200	* despite documenting it otherwise.
1143	*/	1201	*/
1144		1202
1145	if (size)	1203	if (size)
1146	return realloc (ptr, size);	1204	return realloc (ptr, size);
1147		1205
1148	free (ptr);	1206	free (ptr);
1149	return 0;	1207	return 0;
1150	#endif
1151	}	1208	}
1152		1209
1153	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1210	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1154		1211
1155	void ecb_cold	1212	void ecb_cold
1156	ev_set_allocator (void *(*cb)(void *ptr, long size))	1213	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1157	{	1214	{
1158	alloc = cb;	1215	alloc = cb;
1159	}	1216	}
1160		1217
1161	inline_speed void *	1218	inline_speed void *
…		…
1278		1335
1279	/*****************************************************************************/	1336	/*****************************************************************************/
1280		1337
1281	#ifndef EV_HAVE_EV_TIME	1338	#ifndef EV_HAVE_EV_TIME
1282	ev_tstamp	1339	ev_tstamp
1283	ev_time (void)	1340	ev_time (void) EV_THROW
1284	{	1341	{
1285	#if EV_USE_REALTIME	1342	#if EV_USE_REALTIME
1286	if (expect_true (have_realtime))	1343	if (expect_true (have_realtime))
1287	{	1344	{
1288	struct timespec ts;	1345	struct timespec ts;
…		…
1312	return ev_time ();	1369	return ev_time ();
1313	}	1370	}
1314		1371
1315	#if EV_MULTIPLICITY	1372	#if EV_MULTIPLICITY
1316	ev_tstamp	1373	ev_tstamp
1317	ev_now (EV_P)	1374	ev_now (EV_P) EV_THROW
1318	{	1375	{
1319	return ev_rt_now;	1376	return ev_rt_now;
1320	}	1377	}
1321	#endif	1378	#endif
1322		1379
1323	void	1380	void
1324	ev_sleep (ev_tstamp delay)	1381	ev_sleep (ev_tstamp delay) EV_THROW
1325	{	1382	{
1326	if (delay > 0.)	1383	if (delay > 0.)
1327	{	1384	{
1328	#if EV_USE_NANOSLEEP	1385	#if EV_USE_NANOSLEEP
1329	struct timespec ts;	1386	struct timespec ts;
1330		1387
1331	EV_TS_SET (ts, delay);	1388	EV_TS_SET (ts, delay);
1332	nanosleep (&ts, 0);	1389	nanosleep (&ts, 0);
1333	#elif defined(_WIN32)	1390	#elif defined _WIN32
1334	Sleep ((unsigned long)(delay * 1e3));	1391	Sleep ((unsigned long)(delay * 1e3));
1335	#else	1392	#else
1336	struct timeval tv;	1393	struct timeval tv;
1337		1394
1338	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1395	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1410	pendingcb (EV_P_ ev_prepare *w, int revents)	1467	pendingcb (EV_P_ ev_prepare *w, int revents)
1411	{	1468	{
1412	}	1469	}
1413		1470
1414	void noinline	1471	void noinline
1415	ev_feed_event (EV_P_ void *w, int revents)	1472	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1416	{	1473	{
1417	W w_ = (W)w;	1474	W w_ = (W)w;
1418	int pri = ABSPRI (w_);	1475	int pri = ABSPRI (w_);
1419		1476
1420	if (expect_false (w_->pending))	1477	if (expect_false (w_->pending))
…		…
1424	w_->pending = ++pendingcnt [pri];	1481	w_->pending = ++pendingcnt [pri];
1425	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1482	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1426	pendings [pri][w_->pending - 1].w = w_;	1483	pendings [pri][w_->pending - 1].w = w_;
1427	pendings [pri][w_->pending - 1].events = revents;	1484	pendings [pri][w_->pending - 1].events = revents;
1428	}	1485	}
		1486
		1487	pendingpri = NUMPRI - 1;
1429	}	1488	}
1430		1489
1431	inline_speed void	1490	inline_speed void
1432	feed_reverse (EV_P_ W w)	1491	feed_reverse (EV_P_ W w)
1433	{	1492	{
…		…
1479	if (expect_true (!anfd->reify))	1538	if (expect_true (!anfd->reify))
1480	fd_event_nocheck (EV_A_ fd, revents);	1539	fd_event_nocheck (EV_A_ fd, revents);
1481	}	1540	}
1482		1541
1483	void	1542	void
1484	ev_feed_fd_event (EV_P_ int fd, int revents)	1543	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1485	{	1544	{
1486	if (fd >= 0 && fd < anfdmax)	1545	if (fd >= 0 && fd < anfdmax)
1487	fd_event_nocheck (EV_A_ fd, revents);	1546	fd_event_nocheck (EV_A_ fd, revents);
1488	}	1547	}
1489		1548
…		…
1808	static void noinline ecb_cold	1867	static void noinline ecb_cold
1809	evpipe_init (EV_P)	1868	evpipe_init (EV_P)
1810	{	1869	{
1811	if (!ev_is_active (&pipe_w))	1870	if (!ev_is_active (&pipe_w))
1812	{	1871	{
		1872	int fds [2];
		1873
1813	# if EV_USE_EVENTFD	1874	# if EV_USE_EVENTFD
		1875	fds [0] = -1;
1814	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1876	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1815	if (evfd < 0 && errno == EINVAL)	1877	if (fds [1] < 0 && errno == EINVAL)
1816	evfd = eventfd (0, 0);	1878	fds [1] = eventfd (0, 0);
1817		1879
1818	if (evfd >= 0)	1880	if (fds [1] < 0)
		1881	# endif
1819	{	1882	{
		1883	while (pipe (fds))
		1884	ev_syserr ("(libev) error creating signal/async pipe");
		1885
		1886	fd_intern (fds [0]);
		1887	}
		1888
		1889	fd_intern (fds [1]);
		1890
1820	evpipe [0] = -1;	1891	evpipe [0] = fds [0];
1821	fd_intern (evfd); /* doing it twice doesn't hurt */	1892
1822	ev_io_set (&pipe_w, evfd, EV_READ);	1893	if (evpipe [1] < 0)
		1894	evpipe [1] = fds [1]; /* first call, set write fd */
		1895	else
		1896	{
		1897	/* on subsequent calls, do not change evpipe [1] */
		1898	/* so that evpipe_write can always rely on its value. */
		1899	/* this branch does not do anything sensible on windows, */
		1900	/* so must not be executed on windows */
		1901
		1902	dup2 (fds [1], evpipe [1]);
		1903	close (fds [1]);
		1904	}
		1905
		1906	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		1907	ev_io_start (EV_A_ &pipe_w);
		1908	ev_unref (EV_A); /* watcher should not keep loop alive */
		1909	}
		1910	}
		1911
		1912	inline_speed void
		1913	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1914	{
		1915	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		1916
		1917	if (expect_true (*flag))
		1918	return;
		1919
		1920	*flag = 1;
		1921	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1922
		1923	pipe_write_skipped = 1;
		1924
		1925	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1926
		1927	if (pipe_write_wanted)
		1928	{
		1929	int old_errno;
		1930
		1931	pipe_write_skipped = 0;
		1932	ECB_MEMORY_FENCE_RELEASE;
		1933
		1934	old_errno = errno; /* save errno because write will clobber it */
		1935
		1936	#if EV_USE_EVENTFD
		1937	if (evpipe [0] < 0)
		1938	{
		1939	uint64_t counter = 1;
		1940	write (evpipe [1], &counter, sizeof (uint64_t));
1823	}	1941	}
1824	else	1942	else
1825	# endif	1943	#endif
1826	{	1944	{
1827	while (pipe (evpipe))	1945	#ifdef _WIN32
1828	ev_syserr ("(libev) error creating signal/async pipe");	1946	WSABUF buf;
1829		1947	DWORD sent;
1830	fd_intern (evpipe [0]);	1948	buf.buf = &buf;
1831	fd_intern (evpipe [1]);	1949	buf.len = 1;
1832	ev_io_set (&pipe_w, evpipe [0], EV_READ);	1950	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1833	}	1951	#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);	1952	write (evpipe [1], &(evpipe [1]), 1);
		1953	#endif
1877	}	1954	}
1878		1955
1879	errno = old_errno;	1956	errno = old_errno;
1880	}	1957	}
1881	}	1958	}
…		…
1888	int i;	1965	int i;
1889		1966
1890	if (revents & EV_READ)	1967	if (revents & EV_READ)
1891	{	1968	{
1892	#if EV_USE_EVENTFD	1969	#if EV_USE_EVENTFD
1893	if (evfd >= 0)	1970	if (evpipe [0] < 0)
1894	{	1971	{
1895	uint64_t counter;	1972	uint64_t counter;
1896	read (evfd, &counter, sizeof (uint64_t));	1973	read (evpipe [1], &counter, sizeof (uint64_t));
1897	}	1974	}
1898	else	1975	else
1899	#endif	1976	#endif
1900	{	1977	{
1901	char dummy;	1978	char dummy[4];
1902	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1979	#ifdef _WIN32
		1980	WSABUF buf;
		1981	DWORD recvd;
		1982	DWORD flags = 0;
		1983	buf.buf = dummy;
		1984	buf.len = sizeof (dummy);
		1985	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		1986	#else
1903	read (evpipe [0], &dummy, 1);	1987	read (evpipe [0], &dummy, sizeof (dummy));
		1988	#endif
1904	}	1989	}
1905	}	1990	}
1906		1991
1907	pipe_write_skipped = 0;	1992	pipe_write_skipped = 0;
		1993
		1994	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1908		1995
1909	#if EV_SIGNAL_ENABLE	1996	#if EV_SIGNAL_ENABLE
1910	if (sig_pending)	1997	if (sig_pending)
1911	{	1998	{
1912	sig_pending = 0;	1999	sig_pending = 0;
		2000
		2001	ECB_MEMORY_FENCE;
1913		2002
1914	for (i = EV_NSIG - 1; i--; )	2003	for (i = EV_NSIG - 1; i--; )
1915	if (expect_false (signals [i].pending))	2004	if (expect_false (signals [i].pending))
1916	ev_feed_signal_event (EV_A_ i + 1);	2005	ev_feed_signal_event (EV_A_ i + 1);
1917	}	2006	}
…		…
1919		2008
1920	#if EV_ASYNC_ENABLE	2009	#if EV_ASYNC_ENABLE
1921	if (async_pending)	2010	if (async_pending)
1922	{	2011	{
1923	async_pending = 0;	2012	async_pending = 0;
		2013
		2014	ECB_MEMORY_FENCE;
1924		2015
1925	for (i = asynccnt; i--; )	2016	for (i = asynccnt; i--; )
1926	if (asyncs [i]->sent)	2017	if (asyncs [i]->sent)
1927	{	2018	{
1928	asyncs [i]->sent = 0;	2019	asyncs [i]->sent = 0;
		2020	ECB_MEMORY_FENCE_RELEASE;
1929	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2021	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1930	}	2022	}
1931	}	2023	}
1932	#endif	2024	#endif
1933	}	2025	}
1934		2026
1935	/*****************************************************************************/	2027	/*****************************************************************************/
1936		2028
1937	void	2029	void
1938	ev_feed_signal (int signum)	2030	ev_feed_signal (int signum) EV_THROW
1939	{	2031	{
1940	#if EV_MULTIPLICITY	2032	#if EV_MULTIPLICITY
		2033	ECB_MEMORY_FENCE_ACQUIRE;
1941	EV_P = signals [signum - 1].loop;	2034	EV_P = signals [signum - 1].loop;
1942		2035
1943	if (!EV_A)	2036	if (!EV_A)
1944	return;	2037	return;
1945	#endif	2038	#endif
1946		2039
1947	if (!ev_active (&pipe_w))
1948	return;
1949
1950	signals [signum - 1].pending = 1;	2040	signals [signum - 1].pending = 1;
1951	evpipe_write (EV_A_ &sig_pending);	2041	evpipe_write (EV_A_ &sig_pending);
1952	}	2042	}
1953		2043
1954	static void	2044	static void
…		…
1960		2050
1961	ev_feed_signal (signum);	2051	ev_feed_signal (signum);
1962	}	2052	}
1963		2053
1964	void noinline	2054	void noinline
1965	ev_feed_signal_event (EV_P_ int signum)	2055	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1966	{	2056	{
1967	WL w;	2057	WL w;
1968		2058
1969	if (expect_false (signum <= 0 || signum > EV_NSIG))	2059	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1970	return;	2060	return;
1971		2061
1972	--signum;	2062	--signum;
1973		2063
1974	#if EV_MULTIPLICITY	2064	#if EV_MULTIPLICITY
…		…
1978	if (expect_false (signals [signum].loop != EV_A))	2068	if (expect_false (signals [signum].loop != EV_A))
1979	return;	2069	return;
1980	#endif	2070	#endif
1981		2071
1982	signals [signum].pending = 0;	2072	signals [signum].pending = 0;
		2073	ECB_MEMORY_FENCE_RELEASE;
1983		2074
1984	for (w = signals [signum].head; w; w = w->next)	2075	for (w = signals [signum].head; w; w = w->next)
1985	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2076	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1986	}	2077	}
1987		2078
…		…
2086	#if EV_USE_SELECT	2177	#if EV_USE_SELECT
2087	# include "ev_select.c"	2178	# include "ev_select.c"
2088	#endif	2179	#endif
2089		2180
2090	int ecb_cold	2181	int ecb_cold
2091	ev_version_major (void)	2182	ev_version_major (void) EV_THROW
2092	{	2183	{
2093	return EV_VERSION_MAJOR;	2184	return EV_VERSION_MAJOR;
2094	}	2185	}
2095		2186
2096	int ecb_cold	2187	int ecb_cold
2097	ev_version_minor (void)	2188	ev_version_minor (void) EV_THROW
2098	{	2189	{
2099	return EV_VERSION_MINOR;	2190	return EV_VERSION_MINOR;
2100	}	2191	}
2101		2192
2102	/* return true if we are running with elevated privileges and should ignore env variables */	2193	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2110	|| getgid () != getegid ();	2201	|| getgid () != getegid ();
2111	#endif	2202	#endif
2112	}	2203	}
2113		2204
2114	unsigned int ecb_cold	2205	unsigned int ecb_cold
2115	ev_supported_backends (void)	2206	ev_supported_backends (void) EV_THROW
2116	{	2207	{
2117	unsigned int flags = 0;	2208	unsigned int flags = 0;
2118		2209
2119	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2210	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2120	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2211	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2124		2215
2125	return flags;	2216	return flags;
2126	}	2217	}
2127		2218
2128	unsigned int ecb_cold	2219	unsigned int ecb_cold
2129	ev_recommended_backends (void)	2220	ev_recommended_backends (void) EV_THROW
2130	{	2221	{
2131	unsigned int flags = ev_supported_backends ();	2222	unsigned int flags = ev_supported_backends ();
2132		2223
2133	#ifndef __NetBSD__	2224	#ifndef __NetBSD__
2134	/* kqueue is borked on everything but netbsd apparently */	2225	/* kqueue is borked on everything but netbsd apparently */
…		…
2146		2237
2147	return flags;	2238	return flags;
2148	}	2239	}
2149		2240
2150	unsigned int ecb_cold	2241	unsigned int ecb_cold
2151	ev_embeddable_backends (void)	2242	ev_embeddable_backends (void) EV_THROW
2152	{	2243	{
2153	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2244	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2154		2245
2155	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2246	/* 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 */	2247	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2158		2249
2159	return flags;	2250	return flags;
2160	}	2251	}
2161		2252
2162	unsigned int	2253	unsigned int
2163	ev_backend (EV_P)	2254	ev_backend (EV_P) EV_THROW
2164	{	2255	{
2165	return backend;	2256	return backend;
2166	}	2257	}
2167		2258
2168	#if EV_FEATURE_API	2259	#if EV_FEATURE_API
2169	unsigned int	2260	unsigned int
2170	ev_iteration (EV_P)	2261	ev_iteration (EV_P) EV_THROW
2171	{	2262	{
2172	return loop_count;	2263	return loop_count;
2173	}	2264	}
2174		2265
2175	unsigned int	2266	unsigned int
2176	ev_depth (EV_P)	2267	ev_depth (EV_P) EV_THROW
2177	{	2268	{
2178	return loop_depth;	2269	return loop_depth;
2179	}	2270	}
2180		2271
2181	void	2272	void
2182	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2273	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2183	{	2274	{
2184	io_blocktime = interval;	2275	io_blocktime = interval;
2185	}	2276	}
2186		2277
2187	void	2278	void
2188	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2279	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189	{	2280	{
2190	timeout_blocktime = interval;	2281	timeout_blocktime = interval;
2191	}	2282	}
2192		2283
2193	void	2284	void
2194	ev_set_userdata (EV_P_ void *data)	2285	ev_set_userdata (EV_P_ void *data) EV_THROW
2195	{	2286	{
2196	userdata = data;	2287	userdata = data;
2197	}	2288	}
2198		2289
2199	void *	2290	void *
2200	ev_userdata (EV_P)	2291	ev_userdata (EV_P) EV_THROW
2201	{	2292	{
2202	return userdata;	2293	return userdata;
2203	}	2294	}
2204		2295
2205	void	2296	void
2206	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2297	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2207	{	2298	{
2208	invoke_cb = invoke_pending_cb;	2299	invoke_cb = invoke_pending_cb;
2209	}	2300	}
2210		2301
2211	void	2302	void
2212	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2303	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2213	{	2304	{
2214	release_cb = release;	2305	release_cb = release;
2215	acquire_cb = acquire;	2306	acquire_cb = acquire;
2216	}	2307	}
2217	#endif	2308	#endif
2218		2309
2219	/* initialise a loop structure, must be zero-initialised */	2310	/* initialise a loop structure, must be zero-initialised */
2220	static void noinline ecb_cold	2311	static void noinline ecb_cold
2221	loop_init (EV_P_ unsigned int flags)	2312	loop_init (EV_P_ unsigned int flags) EV_THROW
2222	{	2313	{
2223	if (!backend)	2314	if (!backend)
2224	{	2315	{
2225	origflags = flags;	2316	origflags = flags;
2226		2317
…		…
2271	#if EV_ASYNC_ENABLE	2362	#if EV_ASYNC_ENABLE
2272	async_pending = 0;	2363	async_pending = 0;
2273	#endif	2364	#endif
2274	pipe_write_skipped = 0;	2365	pipe_write_skipped = 0;
2275	pipe_write_wanted = 0;	2366	pipe_write_wanted = 0;
		2367	evpipe [0] = -1;
		2368	evpipe [1] = -1;
2276	#if EV_USE_INOTIFY	2369	#if EV_USE_INOTIFY
2277	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2370	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2278	#endif	2371	#endif
2279	#if EV_USE_SIGNALFD	2372	#if EV_USE_SIGNALFD
2280	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2373	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2331	EV_INVOKE_PENDING;	2424	EV_INVOKE_PENDING;
2332	}	2425	}
2333	#endif	2426	#endif
2334		2427
2335	#if EV_CHILD_ENABLE	2428	#if EV_CHILD_ENABLE
2336	if (ev_is_active (&childev))	2429	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2337	{	2430	{
2338	ev_ref (EV_A); /* child watcher */	2431	ev_ref (EV_A); /* child watcher */
2339	ev_signal_stop (EV_A_ &childev);	2432	ev_signal_stop (EV_A_ &childev);
2340	}	2433	}
2341	#endif	2434	#endif
…		…
2343	if (ev_is_active (&pipe_w))	2436	if (ev_is_active (&pipe_w))
2344	{	2437	{
2345	/*ev_ref (EV_A);*/	2438	/*ev_ref (EV_A);*/
2346	/*ev_io_stop (EV_A_ &pipe_w);*/	2439	/*ev_io_stop (EV_A_ &pipe_w);*/
2347		2440
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]);	2441	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2356	EV_WIN32_CLOSE_FD (evpipe [1]);	2442	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2357	}
2358	}	2443	}
2359		2444
2360	#if EV_USE_SIGNALFD	2445	#if EV_USE_SIGNALFD
2361	if (ev_is_active (&sigfd_w))	2446	if (ev_is_active (&sigfd_w))
2362	close (sigfd);	2447	close (sigfd);
…		…
2448	#endif	2533	#endif
2449	#if EV_USE_INOTIFY	2534	#if EV_USE_INOTIFY
2450	infy_fork (EV_A);	2535	infy_fork (EV_A);
2451	#endif	2536	#endif
2452		2537
		2538	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2453	if (ev_is_active (&pipe_w))	2539	if (ev_is_active (&pipe_w))
2454	{	2540	{
2455	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2541	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2456		2542
2457	ev_ref (EV_A);	2543	ev_ref (EV_A);
2458	ev_io_stop (EV_A_ &pipe_w);	2544	ev_io_stop (EV_A_ &pipe_w);
2459		2545
2460	#if EV_USE_EVENTFD
2461	if (evfd >= 0)
2462	close (evfd);
2463	#endif
2464
2465	if (evpipe [0] >= 0)	2546	if (evpipe [0] >= 0)
2466	{
2467	EV_WIN32_CLOSE_FD (evpipe [0]);	2547	EV_WIN32_CLOSE_FD (evpipe [0]);
2468	EV_WIN32_CLOSE_FD (evpipe [1]);
2469	}
2470		2548
2471	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2472	evpipe_init (EV_A);	2549	evpipe_init (EV_A);
2473	/* now iterate over everything, in case we missed something */	2550	/* iterate over everything, in case we missed something before */
2474	pipecb (EV_A_ &pipe_w, EV_READ);	2551	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2475	#endif
2476	}	2552	}
		2553	#endif
2477		2554
2478	postfork = 0;	2555	postfork = 0;
2479	}	2556	}
2480		2557
2481	#if EV_MULTIPLICITY	2558	#if EV_MULTIPLICITY
2482		2559
2483	struct ev_loop * ecb_cold	2560	struct ev_loop * ecb_cold
2484	ev_loop_new (unsigned int flags)	2561	ev_loop_new (unsigned int flags) EV_THROW
2485	{	2562	{
2486	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2563	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2487		2564
2488	memset (EV_A, 0, sizeof (struct ev_loop));	2565	memset (EV_A, 0, sizeof (struct ev_loop));
2489	loop_init (EV_A_ flags);	2566	loop_init (EV_A_ flags);
…		…
2533	}	2610	}
2534	#endif	2611	#endif
2535		2612
2536	#if EV_FEATURE_API	2613	#if EV_FEATURE_API
2537	void ecb_cold	2614	void ecb_cold
2538	ev_verify (EV_P)	2615	ev_verify (EV_P) EV_THROW
2539	{	2616	{
2540	#if EV_VERIFY	2617	#if EV_VERIFY
2541	int i;	2618	int i;
2542	WL w;	2619	WL w, w2;
2543		2620
2544	assert (activecnt >= -1);	2621	assert (activecnt >= -1);
2545		2622
2546	assert (fdchangemax >= fdchangecnt);	2623	assert (fdchangemax >= fdchangecnt);
2547	for (i = 0; i < fdchangecnt; ++i)	2624	for (i = 0; i < fdchangecnt; ++i)
2548	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2625	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2549		2626
2550	assert (anfdmax >= 0);	2627	assert (anfdmax >= 0);
2551	for (i = 0; i < anfdmax; ++i)	2628	for (i = 0; i < anfdmax; ++i)
		2629	{
		2630	int j = 0;
		2631
2552	for (w = anfds [i].head; w; w = w->next)	2632	for (w = w2 = anfds [i].head; w; w = w->next)
2553	{	2633	{
2554	verify_watcher (EV_A_ (W)w);	2634	verify_watcher (EV_A_ (W)w);
		2635
		2636	if (j++ & 1)
		2637	{
		2638	assert (("libev: io watcher list contains a loop", w != w2));
		2639	w2 = w2->next;
		2640	}
		2641
2555	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2642	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));	2643	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2557	}	2644	}
		2645	}
2558		2646
2559	assert (timermax >= timercnt);	2647	assert (timermax >= timercnt);
2560	verify_heap (EV_A_ timers, timercnt);	2648	verify_heap (EV_A_ timers, timercnt);
2561		2649
2562	#if EV_PERIODIC_ENABLE	2650	#if EV_PERIODIC_ENABLE
…		…
2612	#if EV_MULTIPLICITY	2700	#if EV_MULTIPLICITY
2613	struct ev_loop * ecb_cold	2701	struct ev_loop * ecb_cold
2614	#else	2702	#else
2615	int	2703	int
2616	#endif	2704	#endif
2617	ev_default_loop (unsigned int flags)	2705	ev_default_loop (unsigned int flags) EV_THROW
2618	{	2706	{
2619	if (!ev_default_loop_ptr)	2707	if (!ev_default_loop_ptr)
2620	{	2708	{
2621	#if EV_MULTIPLICITY	2709	#if EV_MULTIPLICITY
2622	EV_P = ev_default_loop_ptr = &default_loop_struct;	2710	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2641		2729
2642	return ev_default_loop_ptr;	2730	return ev_default_loop_ptr;
2643	}	2731	}
2644		2732
2645	void	2733	void
2646	ev_loop_fork (EV_P)	2734	ev_loop_fork (EV_P) EV_THROW
2647	{	2735	{
2648	postfork = 1; /* must be in line with ev_default_fork */	2736	postfork = 1;
2649	}	2737	}
2650		2738
2651	/*****************************************************************************/	2739	/*****************************************************************************/
2652		2740
2653	void	2741	void
…		…
2655	{	2743	{
2656	EV_CB_INVOKE ((W)w, revents);	2744	EV_CB_INVOKE ((W)w, revents);
2657	}	2745	}
2658		2746
2659	unsigned int	2747	unsigned int
2660	ev_pending_count (EV_P)	2748	ev_pending_count (EV_P) EV_THROW
2661	{	2749	{
2662	int pri;	2750	int pri;
2663	unsigned int count = 0;	2751	unsigned int count = 0;
2664		2752
2665	for (pri = NUMPRI; pri--; )	2753	for (pri = NUMPRI; pri--; )
…		…
2669	}	2757	}
2670		2758
2671	void noinline	2759	void noinline
2672	ev_invoke_pending (EV_P)	2760	ev_invoke_pending (EV_P)
2673	{	2761	{
2674	int pri;	2762	pendingpri = NUMPRI;
2675		2763
2676	for (pri = NUMPRI; pri--; )	2764	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2765	{
		2766	--pendingpri;
		2767
2677	while (pendingcnt [pri])	2768	while (pendingcnt [pendingpri])
2678	{	2769	{
2679	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2770	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2680		2771
2681	p->w->pending = 0;	2772	p->w->pending = 0;
2682	EV_CB_INVOKE (p->w, p->events);	2773	EV_CB_INVOKE (p->w, p->events);
2683	EV_FREQUENT_CHECK;	2774	EV_FREQUENT_CHECK;
2684	}	2775	}
		2776	}
2685	}	2777	}
2686		2778
2687	#if EV_IDLE_ENABLE	2779	#if EV_IDLE_ENABLE
2688	/* make idle watchers pending. this handles the "call-idle */	2780	/* make idle watchers pending. this handles the "call-idle */
2689	/* only when higher priorities are idle" logic */	2781	/* only when higher priorities are idle" logic */
…		…
2779	{	2871	{
2780	EV_FREQUENT_CHECK;	2872	EV_FREQUENT_CHECK;
2781		2873
2782	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2874	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2783	{	2875	{
2784	int feed_count = 0;
2785
2786	do	2876	do
2787	{	2877	{
2788	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2878	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2789		2879
2790	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2880	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2924		3014
2925	mn_now = ev_rt_now;	3015	mn_now = ev_rt_now;
2926	}	3016	}
2927	}	3017	}
2928		3018
2929	void	3019	int
2930	ev_run (EV_P_ int flags)	3020	ev_run (EV_P_ int flags)
2931	{	3021	{
2932	#if EV_FEATURE_API	3022	#if EV_FEATURE_API
2933	++loop_depth;	3023	++loop_depth;
2934	#endif	3024	#endif
…		…
3049	backend_poll (EV_A_ waittime);	3139	backend_poll (EV_A_ waittime);
3050	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3140	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3051		3141
3052	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3142	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3053		3143
		3144	ECB_MEMORY_FENCE_ACQUIRE;
3054	if (pipe_write_skipped)	3145	if (pipe_write_skipped)
3055	{	3146	{
3056	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3147	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);	3148	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3058	}	3149	}
…		…
3091	loop_done = EVBREAK_CANCEL;	3182	loop_done = EVBREAK_CANCEL;
3092		3183
3093	#if EV_FEATURE_API	3184	#if EV_FEATURE_API
3094	--loop_depth;	3185	--loop_depth;
3095	#endif	3186	#endif
		3187
		3188	return activecnt;
3096	}	3189	}
3097		3190
3098	void	3191	void
3099	ev_break (EV_P_ int how)	3192	ev_break (EV_P_ int how) EV_THROW
3100	{	3193	{
3101	loop_done = how;	3194	loop_done = how;
3102	}	3195	}
3103		3196
3104	void	3197	void
3105	ev_ref (EV_P)	3198	ev_ref (EV_P) EV_THROW
3106	{	3199	{
3107	++activecnt;	3200	++activecnt;
3108	}	3201	}
3109		3202
3110	void	3203	void
3111	ev_unref (EV_P)	3204	ev_unref (EV_P) EV_THROW
3112	{	3205	{
3113	--activecnt;	3206	--activecnt;
3114	}	3207	}
3115		3208
3116	void	3209	void
3117	ev_now_update (EV_P)	3210	ev_now_update (EV_P) EV_THROW
3118	{	3211	{
3119	time_update (EV_A_ 1e100);	3212	time_update (EV_A_ 1e100);
3120	}	3213	}
3121		3214
3122	void	3215	void
3123	ev_suspend (EV_P)	3216	ev_suspend (EV_P) EV_THROW
3124	{	3217	{
3125	ev_now_update (EV_A);	3218	ev_now_update (EV_A);
3126	}	3219	}
3127		3220
3128	void	3221	void
3129	ev_resume (EV_P)	3222	ev_resume (EV_P) EV_THROW
3130	{	3223	{
3131	ev_tstamp mn_prev = mn_now;	3224	ev_tstamp mn_prev = mn_now;
3132		3225
3133	ev_now_update (EV_A);	3226	ev_now_update (EV_A);
3134	timers_reschedule (EV_A_ mn_now - mn_prev);	3227	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3173	w->pending = 0;	3266	w->pending = 0;
3174	}	3267	}
3175	}	3268	}
3176		3269
3177	int	3270	int
3178	ev_clear_pending (EV_P_ void *w)	3271	ev_clear_pending (EV_P_ void *w) EV_THROW
3179	{	3272	{
3180	W w_ = (W)w;	3273	W w_ = (W)w;
3181	int pending = w_->pending;	3274	int pending = w_->pending;
3182		3275
3183	if (expect_true (pending))	3276	if (expect_true (pending))
…		…
3216	}	3309	}
3217		3310
3218	/*****************************************************************************/	3311	/*****************************************************************************/
3219		3312
3220	void noinline	3313	void noinline
3221	ev_io_start (EV_P_ ev_io *w)	3314	ev_io_start (EV_P_ ev_io *w) EV_THROW
3222	{	3315	{
3223	int fd = w->fd;	3316	int fd = w->fd;
3224		3317
3225	if (expect_false (ev_is_active (w)))	3318	if (expect_false (ev_is_active (w)))
3226	return;	3319	return;
…		…
3232		3325
3233	ev_start (EV_A_ (W)w, 1);	3326	ev_start (EV_A_ (W)w, 1);
3234	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3327	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3235	wlist_add (&anfds[fd].head, (WL)w);	3328	wlist_add (&anfds[fd].head, (WL)w);
3236		3329
		3330	/* common bug, apparently */
		3331	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3332
3237	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3333	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3238	w->events &= ~EV__IOFDSET;	3334	w->events &= ~EV__IOFDSET;
3239		3335
3240	EV_FREQUENT_CHECK;	3336	EV_FREQUENT_CHECK;
3241	}	3337	}
3242		3338
3243	void noinline	3339	void noinline
3244	ev_io_stop (EV_P_ ev_io *w)	3340	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3245	{	3341	{
3246	clear_pending (EV_A_ (W)w);	3342	clear_pending (EV_A_ (W)w);
3247	if (expect_false (!ev_is_active (w)))	3343	if (expect_false (!ev_is_active (w)))
3248	return;	3344	return;
3249		3345
…		…
3258		3354
3259	EV_FREQUENT_CHECK;	3355	EV_FREQUENT_CHECK;
3260	}	3356	}
3261		3357
3262	void noinline	3358	void noinline
3263	ev_timer_start (EV_P_ ev_timer *w)	3359	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3264	{	3360	{
3265	if (expect_false (ev_is_active (w)))	3361	if (expect_false (ev_is_active (w)))
3266	return;	3362	return;
3267		3363
3268	ev_at (w) += mn_now;	3364	ev_at (w) += mn_now;
…		…
3282		3378
3283	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3379	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3284	}	3380	}
3285		3381
3286	void noinline	3382	void noinline
3287	ev_timer_stop (EV_P_ ev_timer *w)	3383	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3288	{	3384	{
3289	clear_pending (EV_A_ (W)w);	3385	clear_pending (EV_A_ (W)w);
3290	if (expect_false (!ev_is_active (w)))	3386	if (expect_false (!ev_is_active (w)))
3291	return;	3387	return;
3292		3388
…		…
3312		3408
3313	EV_FREQUENT_CHECK;	3409	EV_FREQUENT_CHECK;
3314	}	3410	}
3315		3411
3316	void noinline	3412	void noinline
3317	ev_timer_again (EV_P_ ev_timer *w)	3413	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3318	{	3414	{
3319	EV_FREQUENT_CHECK;	3415	EV_FREQUENT_CHECK;
3320		3416
3321	clear_pending (EV_A_ (W)w);	3417	clear_pending (EV_A_ (W)w);
3322		3418
…		…
3339		3435
3340	EV_FREQUENT_CHECK;	3436	EV_FREQUENT_CHECK;
3341	}	3437	}
3342		3438
3343	ev_tstamp	3439	ev_tstamp
3344	ev_timer_remaining (EV_P_ ev_timer *w)	3440	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3345	{	3441	{
3346	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3442	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3347	}	3443	}
3348		3444
3349	#if EV_PERIODIC_ENABLE	3445	#if EV_PERIODIC_ENABLE
3350	void noinline	3446	void noinline
3351	ev_periodic_start (EV_P_ ev_periodic *w)	3447	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3352	{	3448	{
3353	if (expect_false (ev_is_active (w)))	3449	if (expect_false (ev_is_active (w)))
3354	return;	3450	return;
3355		3451
3356	if (w->reschedule_cb)	3452	if (w->reschedule_cb)
…		…
3376		3472
3377	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3473	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3378	}	3474	}
3379		3475
3380	void noinline	3476	void noinline
3381	ev_periodic_stop (EV_P_ ev_periodic *w)	3477	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3382	{	3478	{
3383	clear_pending (EV_A_ (W)w);	3479	clear_pending (EV_A_ (W)w);
3384	if (expect_false (!ev_is_active (w)))	3480	if (expect_false (!ev_is_active (w)))
3385	return;	3481	return;
3386		3482
…		…
3404		3500
3405	EV_FREQUENT_CHECK;	3501	EV_FREQUENT_CHECK;
3406	}	3502	}
3407		3503
3408	void noinline	3504	void noinline
3409	ev_periodic_again (EV_P_ ev_periodic *w)	3505	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3410	{	3506	{
3411	/* TODO: use adjustheap and recalculation */	3507	/* TODO: use adjustheap and recalculation */
3412	ev_periodic_stop (EV_A_ w);	3508	ev_periodic_stop (EV_A_ w);
3413	ev_periodic_start (EV_A_ w);	3509	ev_periodic_start (EV_A_ w);
3414	}	3510	}
…		…
3419	#endif	3515	#endif
3420		3516
3421	#if EV_SIGNAL_ENABLE	3517	#if EV_SIGNAL_ENABLE
3422		3518
3423	void noinline	3519	void noinline
3424	ev_signal_start (EV_P_ ev_signal *w)	3520	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3425	{	3521	{
3426	if (expect_false (ev_is_active (w)))	3522	if (expect_false (ev_is_active (w)))
3427	return;	3523	return;
3428		3524
3429	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3525	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3431	#if EV_MULTIPLICITY	3527	#if EV_MULTIPLICITY
3432	assert (("libev: a signal must not be attached to two different loops",	3528	assert (("libev: a signal must not be attached to two different loops",
3433	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3529	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3434		3530
3435	signals [w->signum - 1].loop = EV_A;	3531	signals [w->signum - 1].loop = EV_A;
		3532	ECB_MEMORY_FENCE_RELEASE;
3436	#endif	3533	#endif
3437		3534
3438	EV_FREQUENT_CHECK;	3535	EV_FREQUENT_CHECK;
3439		3536
3440	#if EV_USE_SIGNALFD	3537	#if EV_USE_SIGNALFD
…		…
3500		3597
3501	EV_FREQUENT_CHECK;	3598	EV_FREQUENT_CHECK;
3502	}	3599	}
3503		3600
3504	void noinline	3601	void noinline
3505	ev_signal_stop (EV_P_ ev_signal *w)	3602	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3506	{	3603	{
3507	clear_pending (EV_A_ (W)w);	3604	clear_pending (EV_A_ (W)w);
3508	if (expect_false (!ev_is_active (w)))	3605	if (expect_false (!ev_is_active (w)))
3509	return;	3606	return;
3510		3607
…		…
3541	#endif	3638	#endif
3542		3639
3543	#if EV_CHILD_ENABLE	3640	#if EV_CHILD_ENABLE
3544		3641
3545	void	3642	void
3546	ev_child_start (EV_P_ ev_child *w)	3643	ev_child_start (EV_P_ ev_child *w) EV_THROW
3547	{	3644	{
3548	#if EV_MULTIPLICITY	3645	#if EV_MULTIPLICITY
3549	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3646	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3550	#endif	3647	#endif
3551	if (expect_false (ev_is_active (w)))	3648	if (expect_false (ev_is_active (w)))
…		…
3558		3655
3559	EV_FREQUENT_CHECK;	3656	EV_FREQUENT_CHECK;
3560	}	3657	}
3561		3658
3562	void	3659	void
3563	ev_child_stop (EV_P_ ev_child *w)	3660	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3564	{	3661	{
3565	clear_pending (EV_A_ (W)w);	3662	clear_pending (EV_A_ (W)w);
3566	if (expect_false (!ev_is_active (w)))	3663	if (expect_false (!ev_is_active (w)))
3567	return;	3664	return;
3568		3665
…		…
3735	}	3832	}
3736		3833
3737	inline_size int	3834	inline_size int
3738	infy_newfd (void)	3835	infy_newfd (void)
3739	{	3836	{
3740	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	3837	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3741	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	3838	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3742	if (fd >= 0)	3839	if (fd >= 0)
3743	return fd;	3840	return fd;
3744	#endif	3841	#endif
3745	return inotify_init ();	3842	return inotify_init ();
…		…
3820	#else	3917	#else
3821	# define EV_LSTAT(p,b) lstat (p, b)	3918	# define EV_LSTAT(p,b) lstat (p, b)
3822	#endif	3919	#endif
3823		3920
3824	void	3921	void
3825	ev_stat_stat (EV_P_ ev_stat *w)	3922	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3826	{	3923	{
3827	if (lstat (w->path, &w->attr) < 0)	3924	if (lstat (w->path, &w->attr) < 0)
3828	w->attr.st_nlink = 0;	3925	w->attr.st_nlink = 0;
3829	else if (!w->attr.st_nlink)	3926	else if (!w->attr.st_nlink)
3830	w->attr.st_nlink = 1;	3927	w->attr.st_nlink = 1;
…		…
3869	ev_feed_event (EV_A_ w, EV_STAT);	3966	ev_feed_event (EV_A_ w, EV_STAT);
3870	}	3967	}
3871	}	3968	}
3872		3969
3873	void	3970	void
3874	ev_stat_start (EV_P_ ev_stat *w)	3971	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3875	{	3972	{
3876	if (expect_false (ev_is_active (w)))	3973	if (expect_false (ev_is_active (w)))
3877	return;	3974	return;
3878		3975
3879	ev_stat_stat (EV_A_ w);	3976	ev_stat_stat (EV_A_ w);
…		…
3900		3997
3901	EV_FREQUENT_CHECK;	3998	EV_FREQUENT_CHECK;
3902	}	3999	}
3903		4000
3904	void	4001	void
3905	ev_stat_stop (EV_P_ ev_stat *w)	4002	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3906	{	4003	{
3907	clear_pending (EV_A_ (W)w);	4004	clear_pending (EV_A_ (W)w);
3908	if (expect_false (!ev_is_active (w)))	4005	if (expect_false (!ev_is_active (w)))
3909	return;	4006	return;
3910		4007
…		…
3926	}	4023	}
3927	#endif	4024	#endif
3928		4025
3929	#if EV_IDLE_ENABLE	4026	#if EV_IDLE_ENABLE
3930	void	4027	void
3931	ev_idle_start (EV_P_ ev_idle *w)	4028	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3932	{	4029	{
3933	if (expect_false (ev_is_active (w)))	4030	if (expect_false (ev_is_active (w)))
3934	return;	4031	return;
3935		4032
3936	pri_adjust (EV_A_ (W)w);	4033	pri_adjust (EV_A_ (W)w);
…		…
3949		4046
3950	EV_FREQUENT_CHECK;	4047	EV_FREQUENT_CHECK;
3951	}	4048	}
3952		4049
3953	void	4050	void
3954	ev_idle_stop (EV_P_ ev_idle *w)	4051	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3955	{	4052	{
3956	clear_pending (EV_A_ (W)w);	4053	clear_pending (EV_A_ (W)w);
3957	if (expect_false (!ev_is_active (w)))	4054	if (expect_false (!ev_is_active (w)))
3958	return;	4055	return;
3959		4056
…		…
3973	}	4070	}
3974	#endif	4071	#endif
3975		4072
3976	#if EV_PREPARE_ENABLE	4073	#if EV_PREPARE_ENABLE
3977	void	4074	void
3978	ev_prepare_start (EV_P_ ev_prepare *w)	4075	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3979	{	4076	{
3980	if (expect_false (ev_is_active (w)))	4077	if (expect_false (ev_is_active (w)))
3981	return;	4078	return;
3982		4079
3983	EV_FREQUENT_CHECK;	4080	EV_FREQUENT_CHECK;
…		…
3988		4085
3989	EV_FREQUENT_CHECK;	4086	EV_FREQUENT_CHECK;
3990	}	4087	}
3991		4088
3992	void	4089	void
3993	ev_prepare_stop (EV_P_ ev_prepare *w)	4090	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3994	{	4091	{
3995	clear_pending (EV_A_ (W)w);	4092	clear_pending (EV_A_ (W)w);
3996	if (expect_false (!ev_is_active (w)))	4093	if (expect_false (!ev_is_active (w)))
3997	return;	4094	return;
3998		4095
…		…
4011	}	4108	}
4012	#endif	4109	#endif
4013		4110
4014	#if EV_CHECK_ENABLE	4111	#if EV_CHECK_ENABLE
4015	void	4112	void
4016	ev_check_start (EV_P_ ev_check *w)	4113	ev_check_start (EV_P_ ev_check *w) EV_THROW
4017	{	4114	{
4018	if (expect_false (ev_is_active (w)))	4115	if (expect_false (ev_is_active (w)))
4019	return;	4116	return;
4020		4117
4021	EV_FREQUENT_CHECK;	4118	EV_FREQUENT_CHECK;
…		…
4026		4123
4027	EV_FREQUENT_CHECK;	4124	EV_FREQUENT_CHECK;
4028	}	4125	}
4029		4126
4030	void	4127	void
4031	ev_check_stop (EV_P_ ev_check *w)	4128	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4032	{	4129	{
4033	clear_pending (EV_A_ (W)w);	4130	clear_pending (EV_A_ (W)w);
4034	if (expect_false (!ev_is_active (w)))	4131	if (expect_false (!ev_is_active (w)))
4035	return;	4132	return;
4036		4133
…		…
4049	}	4146	}
4050	#endif	4147	#endif
4051		4148
4052	#if EV_EMBED_ENABLE	4149	#if EV_EMBED_ENABLE
4053	void noinline	4150	void noinline
4054	ev_embed_sweep (EV_P_ ev_embed *w)	4151	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4055	{	4152	{
4056	ev_run (w->other, EVRUN_NOWAIT);	4153	ev_run (w->other, EVRUN_NOWAIT);
4057	}	4154	}
4058		4155
4059	static void	4156	static void
…		…
4107	ev_idle_stop (EV_A_ idle);	4204	ev_idle_stop (EV_A_ idle);
4108	}	4205	}
4109	#endif	4206	#endif
4110		4207
4111	void	4208	void
4112	ev_embed_start (EV_P_ ev_embed *w)	4209	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4113	{	4210	{
4114	if (expect_false (ev_is_active (w)))	4211	if (expect_false (ev_is_active (w)))
4115	return;	4212	return;
4116		4213
4117	{	4214	{
…		…
4138		4235
4139	EV_FREQUENT_CHECK;	4236	EV_FREQUENT_CHECK;
4140	}	4237	}
4141		4238
4142	void	4239	void
4143	ev_embed_stop (EV_P_ ev_embed *w)	4240	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4144	{	4241	{
4145	clear_pending (EV_A_ (W)w);	4242	clear_pending (EV_A_ (W)w);
4146	if (expect_false (!ev_is_active (w)))	4243	if (expect_false (!ev_is_active (w)))
4147	return;	4244	return;
4148		4245
…		…
4158	}	4255	}
4159	#endif	4256	#endif
4160		4257
4161	#if EV_FORK_ENABLE	4258	#if EV_FORK_ENABLE
4162	void	4259	void
4163	ev_fork_start (EV_P_ ev_fork *w)	4260	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4164	{	4261	{
4165	if (expect_false (ev_is_active (w)))	4262	if (expect_false (ev_is_active (w)))
4166	return;	4263	return;
4167		4264
4168	EV_FREQUENT_CHECK;	4265	EV_FREQUENT_CHECK;
…		…
4173		4270
4174	EV_FREQUENT_CHECK;	4271	EV_FREQUENT_CHECK;
4175	}	4272	}
4176		4273
4177	void	4274	void
4178	ev_fork_stop (EV_P_ ev_fork *w)	4275	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4179	{	4276	{
4180	clear_pending (EV_A_ (W)w);	4277	clear_pending (EV_A_ (W)w);
4181	if (expect_false (!ev_is_active (w)))	4278	if (expect_false (!ev_is_active (w)))
4182	return;	4279	return;
4183		4280
…		…
4196	}	4293	}
4197	#endif	4294	#endif
4198		4295
4199	#if EV_CLEANUP_ENABLE	4296	#if EV_CLEANUP_ENABLE
4200	void	4297	void
4201	ev_cleanup_start (EV_P_ ev_cleanup *w)	4298	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4202	{	4299	{
4203	if (expect_false (ev_is_active (w)))	4300	if (expect_false (ev_is_active (w)))
4204	return;	4301	return;
4205		4302
4206	EV_FREQUENT_CHECK;	4303	EV_FREQUENT_CHECK;
…		…
4213	ev_unref (EV_A);	4310	ev_unref (EV_A);
4214	EV_FREQUENT_CHECK;	4311	EV_FREQUENT_CHECK;
4215	}	4312	}
4216		4313
4217	void	4314	void
4218	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4315	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4219	{	4316	{
4220	clear_pending (EV_A_ (W)w);	4317	clear_pending (EV_A_ (W)w);
4221	if (expect_false (!ev_is_active (w)))	4318	if (expect_false (!ev_is_active (w)))
4222	return;	4319	return;
4223		4320
…		…
4237	}	4334	}
4238	#endif	4335	#endif
4239		4336
4240	#if EV_ASYNC_ENABLE	4337	#if EV_ASYNC_ENABLE
4241	void	4338	void
4242	ev_async_start (EV_P_ ev_async *w)	4339	ev_async_start (EV_P_ ev_async *w) EV_THROW
4243	{	4340	{
4244	if (expect_false (ev_is_active (w)))	4341	if (expect_false (ev_is_active (w)))
4245	return;	4342	return;
4246		4343
4247	w->sent = 0;	4344	w->sent = 0;
…		…
4256		4353
4257	EV_FREQUENT_CHECK;	4354	EV_FREQUENT_CHECK;
4258	}	4355	}
4259		4356
4260	void	4357	void
4261	ev_async_stop (EV_P_ ev_async *w)	4358	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4262	{	4359	{
4263	clear_pending (EV_A_ (W)w);	4360	clear_pending (EV_A_ (W)w);
4264	if (expect_false (!ev_is_active (w)))	4361	if (expect_false (!ev_is_active (w)))
4265	return;	4362	return;
4266		4363
…		…
4277		4374
4278	EV_FREQUENT_CHECK;	4375	EV_FREQUENT_CHECK;
4279	}	4376	}
4280		4377
4281	void	4378	void
4282	ev_async_send (EV_P_ ev_async *w)	4379	ev_async_send (EV_P_ ev_async *w) EV_THROW
4283	{	4380	{
4284	w->sent = 1;	4381	w->sent = 1;
4285	evpipe_write (EV_A_ &async_pending);	4382	evpipe_write (EV_A_ &async_pending);
4286	}	4383	}
4287	#endif	4384	#endif
…		…
4324		4421
4325	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4422	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4326	}	4423	}
4327		4424
4328	void	4425	void
4329	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4426	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4330	{	4427	{
4331	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4428	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4332		4429
4333	if (expect_false (!once))	4430	if (expect_false (!once))
4334	{	4431	{
…		…
4356		4453
4357	/*****************************************************************************/	4454	/*****************************************************************************/
4358		4455
4359	#if EV_WALK_ENABLE	4456	#if EV_WALK_ENABLE
4360	void ecb_cold	4457	void ecb_cold
4361	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4458	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4362	{	4459	{
4363	int i, j;	4460	int i, j;
4364	ev_watcher_list *wl, *wn;	4461	ev_watcher_list *wl, *wn;
4365		4462
4366	if (types & (EV_IO | EV_EMBED))	4463	if (types & (EV_IO | EV_EMBED))

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