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Comparing libev/ev.c (file contents):
Revision 1.402 by sf-exg, Tue Dec 20 10:34:10 2011 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
…		…
183	# include EV_H	183	# include EV_H
184	#else	184	#else
185	# include "ev.h"	185	# include "ev.h"
186	#endif	186	#endif
187		187
		188	#if EV_NO_THREADS
		189	# undef EV_NO_SMP
		190	# define EV_NO_SMP 1
		191	# undef ECB_NO_THREADS
		192	# define ECB_NO_THREADS 1
		193	#endif
		194	#if EV_NO_SMP
		195	# undef EV_NO_SMP
		196	# define ECB_NO_SMP 1
		197	#endif
		198
188	#ifndef _WIN32	199	#ifndef _WIN32
189	# include <sys/time.h>	200	# include <sys/time.h>
190	# include <sys/wait.h>	201	# include <sys/wait.h>
191	# include <unistd.h>	202	# include <unistd.h>
192	#else	203	#else
193	# include <io.h>	204	# include <io.h>
194	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
195	# include <windows.h>	207	# include <windows.h>
196	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
197	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
198	# endif	210	# endif
199	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
208	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
209		221
210	/* 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 */
211		223
212	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
213	#if defined (EV_NSIG)	225	#if defined EV_NSIG
214	/* use what's provided */	226	/* use what's provided */
215	#elif defined (NSIG)	227	#elif defined NSIG
216	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
217	#elif defined(_NSIG)	229	#elif defined _NSIG
218	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
219	#elif defined (SIGMAX)	231	#elif defined SIGMAX
220	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
221	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
222	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
223	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
224	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
225	#elif defined (MAXSIG)	237	#elif defined MAXSIG
226	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
227	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
228	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
229	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
230	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
232	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233	#else	245	#else
234	# error "unable to find value for NSIG, please report"	246	# error "unable to find value for NSIG, please report"
235	/* to make it compile regardless, just remove the above line, */	247	/* to make it compile regardless, just remove the above line, */
236	/* but consider reporting it, too! :) */	248	/* but consider reporting it, too! :) */
…		…
248	# define EV_USE_CLOCK_SYSCALL 0	260	# define EV_USE_CLOCK_SYSCALL 0
249	# endif	261	# endif
250	#endif	262	#endif
251		263
252	#ifndef EV_USE_MONOTONIC	264	#ifndef EV_USE_MONOTONIC
253	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254	# define EV_USE_MONOTONIC EV_FEATURE_OS	266	# define EV_USE_MONOTONIC EV_FEATURE_OS
255	# else	267	# else
256	# define EV_USE_MONOTONIC 0	268	# define EV_USE_MONOTONIC 0
257	# endif	269	# endif
258	#endif	270	#endif
…		…
348	#endif	360	#endif
349		361
350	/* 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, */
351	/* which makes programs even slower. might work on other unices, too. */	363	/* which makes programs even slower. might work on other unices, too. */
352	#if EV_USE_CLOCK_SYSCALL	364	#if EV_USE_CLOCK_SYSCALL
353	# include <syscall.h>	365	# include <sys/syscall.h>
354	# ifdef SYS_clock_gettime	366	# ifdef SYS_clock_gettime
355	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	367	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
357	# define EV_USE_MONOTONIC 1	369	# define EV_USE_MONOTONIC 1
358	# else	370	# else
…		…
384	# define EV_USE_INOTIFY 0	396	# define EV_USE_INOTIFY 0
385	#endif	397	#endif
386		398
387	#if !EV_USE_NANOSLEEP	399	#if !EV_USE_NANOSLEEP
388	/* 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 */
389	# if !defined(_WIN32) && !defined(__hpux)	401	# if !defined _WIN32 && !defined __hpux
390	# include <sys/select.h>	402	# include <sys/select.h>
391	# endif	403	# endif
392	#endif	404	#endif
393		405
394	#if EV_USE_INOTIFY	406	#if EV_USE_INOTIFY
…		…
397	/* 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 */
398	# ifndef IN_DONT_FOLLOW	410	# ifndef IN_DONT_FOLLOW
399	# undef EV_USE_INOTIFY	411	# undef EV_USE_INOTIFY
400	# define EV_USE_INOTIFY 0	412	# define EV_USE_INOTIFY 0
401	# endif	413	# endif
402	#endif
403
404	#if EV_SELECT_IS_WINSOCKET
405	# include <winsock.h>
406	#endif	414	#endif
407		415
408	#if EV_USE_EVENTFD	416	#if EV_USE_EVENTFD
409	/* 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 */
410	# include <stdint.h>	418	# include <stdint.h>
…		…
467	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	475	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468	/* ECB.H BEGIN */	476	/* ECB.H BEGIN */
469	/*	477	/*
470	* libecb - http://software.schmorp.de/pkg/libecb	478	* libecb - http://software.schmorp.de/pkg/libecb
471	*	479	*
472	* Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>	480	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
473	* Copyright (©) 2011 Emanuele Giaquinta	481	* Copyright (©) 2011 Emanuele Giaquinta
474	* All rights reserved.	482	* All rights reserved.
475	*	483	*
476	* Redistribution and use in source and binary forms, with or without modifica-	484	* Redistribution and use in source and binary forms, with or without modifica-
477	* tion, are permitted provided that the following conditions are met:	485	* tion, are permitted provided that the following conditions are met:
…		…
496	*/	504	*/
497		505
498	#ifndef ECB_H	506	#ifndef ECB_H
499	#define ECB_H	507	#define ECB_H
500		508
		509	/* 16 bits major, 16 bits minor */
		510	#define ECB_VERSION 0x00010001
		511
501	#ifdef _WIN32	512	#ifdef _WIN32
502	typedef signed char int8_t;	513	typedef signed char int8_t;
503	typedef unsigned char uint8_t;	514	typedef unsigned char uint8_t;
504	typedef signed short int16_t;	515	typedef signed short int16_t;
505	typedef unsigned short uint16_t;	516	typedef unsigned short uint16_t;
…		…
510	typedef unsigned long long uint64_t;	521	typedef unsigned long long uint64_t;
511	#else /* _MSC_VER || __BORLANDC__ */	522	#else /* _MSC_VER || __BORLANDC__ */
512	typedef signed __int64 int64_t;	523	typedef signed __int64 int64_t;
513	typedef unsigned __int64 uint64_t;	524	typedef unsigned __int64 uint64_t;
514	#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;
515	#else	536	#else
516	#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
517	#endif	543	#endif
518		544
519	/* many compilers define _GNUC_ to some versions but then only implement	545	/* many compilers define _GNUC_ to some versions but then only implement
520	* what their idiot authors think are the "more important" extensions,	546	* what their idiot authors think are the "more important" extensions,
521	* causing enormous grief in return for some better fake benchmark numbers.	547	* causing enormous grief in return for some better fake benchmark numbers.
522	* or so.	548	* or so.
523	* 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
524	* 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.
525	*/	551	*/
526	#ifndef ECB_GCC_VERSION	552	#ifndef ECB_GCC_VERSION
527	#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__
528	#define ECB_GCC_VERSION(major,minor) 0	554	#define ECB_GCC_VERSION(major,minor) 0
529	#else	555	#else
530	#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)))
531	#endif	557	#endif
532	#endif	558	#endif
533		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
534	/*****************************************************************************/	566	/*****************************************************************************/
535		567
536	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	568	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537	/* 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 */
538		570
539	#if ECB_NO_THREADS || ECB_NO_SMP	571	#if ECB_NO_THREADS
		572	#define ECB_NO_SMP 1
		573	#endif
		574
		575	#if ECB_NO_SMP
540	#define ECB_MEMORY_FENCE do { } while (0)	576	#define ECB_MEMORY_FENCE do { } while (0)
541	#endif	577	#endif
542		578
543	#ifndef ECB_MEMORY_FENCE	579	#ifndef ECB_MEMORY_FENCE
544	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__)	580	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545	#if __i386__	581	#if __i386 || __i386__
546	#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")
547	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */	583	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	584	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
549	#elif __amd64	585	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	586	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	587	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */	588	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	589	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	590	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	591	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	592	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
557	#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")
558	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \	594	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	595	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
560	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	596	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		597	#elif __sparc || __sparc__
		598	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		599	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		600	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		601	#elif defined __s390__ || defined __s390x__
		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")
561	#endif	612	#endif
562	#endif	613	#endif
563	#endif	614	#endif
564		615
565	#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)
566	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	623	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
567	#define ECB_MEMORY_FENCE __sync_synchronize ()	624	#define ECB_MEMORY_FENCE __sync_synchronize ()
568	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
569	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
570	#elif _MSC_VER >= 1400 /* VC++ 2005 */	625	#elif _MSC_VER >= 1400 /* VC++ 2005 */
571	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	626	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
572	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	627	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
573	#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 */
574	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	629	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
575	#elif defined(_WIN32)	630	#elif defined _WIN32
576	#include <WinNT.h>	631	#include <WinNT.h>
577	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	632	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		633	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		634	#include <mbarrier.h>
		635	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		636	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_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)
578	#endif	655	#endif
579	#endif	656	#endif
580		657
581	#ifndef ECB_MEMORY_FENCE	658	#ifndef ECB_MEMORY_FENCE
582	#if !ECB_AVOID_PTHREADS	659	#if !ECB_AVOID_PTHREADS
…		…
594	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	671	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
595	#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)
596	#endif	673	#endif
597	#endif	674	#endif
598		675
599	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	676	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
600	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	677	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
601	#endif	678	#endif
602		679
603	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	680	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
604	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	681	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
605	#endif	682	#endif
606		683
607	/*****************************************************************************/	684	/*****************************************************************************/
608
609	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
610		685
611	#if __cplusplus	686	#if __cplusplus
612	#define ecb_inline static inline	687	#define ecb_inline static inline
613	#elif ECB_GCC_VERSION(2,5)	688	#elif ECB_GCC_VERSION(2,5)
614	#define ecb_inline static __inline__	689	#define ecb_inline static __inline__
…		…
653	#elif ECB_GCC_VERSION(3,0)	728	#elif ECB_GCC_VERSION(3,0)
654	#define ecb_decltype(x) __typeof(x)	729	#define ecb_decltype(x) __typeof(x)
655	#endif	730	#endif
656		731
657	#define ecb_noinline ecb_attribute ((__noinline__))	732	#define ecb_noinline ecb_attribute ((__noinline__))
658	#define ecb_noreturn ecb_attribute ((__noreturn__))
659	#define ecb_unused ecb_attribute ((__unused__))	733	#define ecb_unused ecb_attribute ((__unused__))
660	#define ecb_const ecb_attribute ((__const__))	734	#define ecb_const ecb_attribute ((__const__))
661	#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
662		742
663	#if ECB_GCC_VERSION(4,3)	743	#if ECB_GCC_VERSION(4,3)
664	#define ecb_artificial ecb_attribute ((__artificial__))	744	#define ecb_artificial ecb_attribute ((__artificial__))
665	#define ecb_hot ecb_attribute ((__hot__))	745	#define ecb_hot ecb_attribute ((__hot__))
666	#define ecb_cold ecb_attribute ((__cold__))	746	#define ecb_cold ecb_attribute ((__cold__))
…		…
757		837
758	return r + ecb_ld32 (x);	838	return r + ecb_ld32 (x);
759	}	839	}
760	#endif	840	#endif
761		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
		847	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		848	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		849	{
		850	return ( (x * 0x0802U & 0x22110U)
		851	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		852	}
		853
		854	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		855	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		856	{
		857	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		858	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		859	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		860	x = ( x >> 8 ) | ( x << 8);
		861
		862	return x;
		863	}
		864
		865	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		866	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		867	{
		868	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		869	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		870	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		871	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		872	x = ( x >> 16 ) | ( x << 16);
		873
		874	return x;
		875	}
		876
762	/* popcount64 is only available on 64 bit cpus as gcc builtin */	877	/* popcount64 is only available on 64 bit cpus as gcc builtin */
763	/* so for this version we are lazy */	878	/* so for this version we are lazy */
764	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	879	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
765	ecb_function_ int	880	ecb_function_ int
766	ecb_popcount64 (uint64_t x)	881	ecb_popcount64 (uint64_t x)
…		…
815		930
816	#if ECB_GCC_VERSION(4,5)	931	#if ECB_GCC_VERSION(4,5)
817	#define ecb_unreachable() __builtin_unreachable ()	932	#define ecb_unreachable() __builtin_unreachable ()
818	#else	933	#else
819	/* this seems to work fine, but gcc always emits a warning for it :/ */	934	/* this seems to work fine, but gcc always emits a warning for it :/ */
820	ecb_function_ void ecb_unreachable (void) ecb_noreturn;	935	ecb_inline void ecb_unreachable (void) ecb_noreturn;
821	ecb_function_ void ecb_unreachable (void) { }	936	ecb_inline void ecb_unreachable (void) { }
822	#endif	937	#endif
823		938
824	/* try to tell the compiler that some condition is definitely true */	939	/* try to tell the compiler that some condition is definitely true */
825	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	940	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
826		941
827	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;	942	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
828	ecb_function_ unsigned char	943	ecb_inline unsigned char
829	ecb_byteorder_helper (void)	944	ecb_byteorder_helper (void)
830	{	945	{
831	const uint32_t u = 0x11223344;	946	const uint32_t u = 0x11223344;
832	return *(unsigned char *)&u;	947	return *(unsigned char *)&u;
833	}	948	}
834		949
835	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;	950	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
836	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	951	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
837	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;	952	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
838	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	953	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
839		954
840	#if ECB_GCC_VERSION(3,0) || ECB_C99	955	#if ECB_GCC_VERSION(3,0) || ECB_C99
841	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	956	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
842	#else	957	#else
843	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	958	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
…		…
1043	{	1158	{
1044	write (STDERR_FILENO, msg, strlen (msg));	1159	write (STDERR_FILENO, msg, strlen (msg));
1045	}	1160	}
1046	#endif	1161	#endif
1047		1162
1048	static void (*syserr_cb)(const char *msg);	1163	static void (*syserr_cb)(const char *msg) EV_THROW;
1049		1164
1050	void ecb_cold	1165	void ecb_cold
1051	ev_set_syserr_cb (void (*cb)(const char *msg))	1166	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1052	{	1167	{
1053	syserr_cb = cb;	1168	syserr_cb = cb;
1054	}	1169	}
1055		1170
1056	static void noinline ecb_cold	1171	static void noinline ecb_cold
…		…
1074	abort ();	1189	abort ();
1075	}	1190	}
1076	}	1191	}
1077		1192
1078	static void *	1193	static void *
1079	ev_realloc_emul (void *ptr, long size)	1194	ev_realloc_emul (void *ptr, long size) EV_THROW
1080	{	1195	{
1081	#if __GLIBC__
1082	return realloc (ptr, size);
1083	#else
1084	/* some systems, notably openbsd and darwin, fail to properly	1196	/* some systems, notably openbsd and darwin, fail to properly
1085	* 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
1086	* 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.
1087	*/	1201	*/
1088		1202
1089	if (size)	1203	if (size)
1090	return realloc (ptr, size);	1204	return realloc (ptr, size);
1091		1205
1092	free (ptr);	1206	free (ptr);
1093	return 0;	1207	return 0;
1094	#endif
1095	}	1208	}
1096		1209
1097	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1210	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1098		1211
1099	void ecb_cold	1212	void ecb_cold
1100	ev_set_allocator (void *(*cb)(void *ptr, long size))	1213	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1101	{	1214	{
1102	alloc = cb;	1215	alloc = cb;
1103	}	1216	}
1104		1217
1105	inline_speed void *	1218	inline_speed void *
…		…
1222		1335
1223	/*****************************************************************************/	1336	/*****************************************************************************/
1224		1337
1225	#ifndef EV_HAVE_EV_TIME	1338	#ifndef EV_HAVE_EV_TIME
1226	ev_tstamp	1339	ev_tstamp
1227	ev_time (void)	1340	ev_time (void) EV_THROW
1228	{	1341	{
1229	#if EV_USE_REALTIME	1342	#if EV_USE_REALTIME
1230	if (expect_true (have_realtime))	1343	if (expect_true (have_realtime))
1231	{	1344	{
1232	struct timespec ts;	1345	struct timespec ts;
…		…
1256	return ev_time ();	1369	return ev_time ();
1257	}	1370	}
1258		1371
1259	#if EV_MULTIPLICITY	1372	#if EV_MULTIPLICITY
1260	ev_tstamp	1373	ev_tstamp
1261	ev_now (EV_P)	1374	ev_now (EV_P) EV_THROW
1262	{	1375	{
1263	return ev_rt_now;	1376	return ev_rt_now;
1264	}	1377	}
1265	#endif	1378	#endif
1266		1379
1267	void	1380	void
1268	ev_sleep (ev_tstamp delay)	1381	ev_sleep (ev_tstamp delay) EV_THROW
1269	{	1382	{
1270	if (delay > 0.)	1383	if (delay > 0.)
1271	{	1384	{
1272	#if EV_USE_NANOSLEEP	1385	#if EV_USE_NANOSLEEP
1273	struct timespec ts;	1386	struct timespec ts;
1274		1387
1275	EV_TS_SET (ts, delay);	1388	EV_TS_SET (ts, delay);
1276	nanosleep (&ts, 0);	1389	nanosleep (&ts, 0);
1277	#elif defined(_WIN32)	1390	#elif defined _WIN32
1278	Sleep ((unsigned long)(delay * 1e3));	1391	Sleep ((unsigned long)(delay * 1e3));
1279	#else	1392	#else
1280	struct timeval tv;	1393	struct timeval tv;
1281		1394
1282	/* 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 */
…		…
1354	pendingcb (EV_P_ ev_prepare *w, int revents)	1467	pendingcb (EV_P_ ev_prepare *w, int revents)
1355	{	1468	{
1356	}	1469	}
1357		1470
1358	void noinline	1471	void noinline
1359	ev_feed_event (EV_P_ void *w, int revents)	1472	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1360	{	1473	{
1361	W w_ = (W)w;	1474	W w_ = (W)w;
1362	int pri = ABSPRI (w_);	1475	int pri = ABSPRI (w_);
1363		1476
1364	if (expect_false (w_->pending))	1477	if (expect_false (w_->pending))
…		…
1368	w_->pending = ++pendingcnt [pri];	1481	w_->pending = ++pendingcnt [pri];
1369	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1482	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1370	pendings [pri][w_->pending - 1].w = w_;	1483	pendings [pri][w_->pending - 1].w = w_;
1371	pendings [pri][w_->pending - 1].events = revents;	1484	pendings [pri][w_->pending - 1].events = revents;
1372	}	1485	}
		1486
		1487	pendingpri = NUMPRI - 1;
1373	}	1488	}
1374		1489
1375	inline_speed void	1490	inline_speed void
1376	feed_reverse (EV_P_ W w)	1491	feed_reverse (EV_P_ W w)
1377	{	1492	{
…		…
1423	if (expect_true (!anfd->reify))	1538	if (expect_true (!anfd->reify))
1424	fd_event_nocheck (EV_A_ fd, revents);	1539	fd_event_nocheck (EV_A_ fd, revents);
1425	}	1540	}
1426		1541
1427	void	1542	void
1428	ev_feed_fd_event (EV_P_ int fd, int revents)	1543	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1429	{	1544	{
1430	if (fd >= 0 && fd < anfdmax)	1545	if (fd >= 0 && fd < anfdmax)
1431	fd_event_nocheck (EV_A_ fd, revents);	1546	fd_event_nocheck (EV_A_ fd, revents);
1432	}	1547	}
1433		1548
…		…
1752	static void noinline ecb_cold	1867	static void noinline ecb_cold
1753	evpipe_init (EV_P)	1868	evpipe_init (EV_P)
1754	{	1869	{
1755	if (!ev_is_active (&pipe_w))	1870	if (!ev_is_active (&pipe_w))
1756	{	1871	{
		1872	int fds [2];
		1873
1757	# if EV_USE_EVENTFD	1874	# if EV_USE_EVENTFD
		1875	fds [0] = -1;
1758	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1876	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1759	if (evfd < 0 && errno == EINVAL)	1877	if (fds [1] < 0 && errno == EINVAL)
1760	evfd = eventfd (0, 0);	1878	fds [1] = eventfd (0, 0);
1761		1879
1762	if (evfd >= 0)	1880	if (fds [1] < 0)
		1881	# endif
1763	{	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
1764	evpipe [0] = -1;	1891	evpipe [0] = fds [0];
1765	fd_intern (evfd); /* doing it twice doesn't hurt */	1892
1766	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));
1767	}	1941	}
1768	else	1942	else
1769	# endif	1943	#endif
1770	{	1944	{
1771	while (pipe (evpipe))	1945	#ifdef _WIN32
1772	ev_syserr ("(libev) error creating signal/async pipe");	1946	WSABUF buf;
1773		1947	DWORD sent;
1774	fd_intern (evpipe [0]);	1948	buf.buf = &buf;
1775	fd_intern (evpipe [1]);	1949	buf.len = 1;
1776	ev_io_set (&pipe_w, evpipe [0], EV_READ);	1950	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1777	}	1951	#else
1778
1779	ev_io_start (EV_A_ &pipe_w);
1780	ev_unref (EV_A); /* watcher should not keep loop alive */
1781	}
1782	}
1783
1784	inline_speed void
1785	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1786	{
1787	if (expect_true (*flag))
1788	return;
1789
1790	*flag = 1;
1791
1792	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1793
1794	pipe_write_skipped = 1;
1795
1796	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1797
1798	if (pipe_write_wanted)
1799	{
1800	int old_errno;
1801
1802	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1803
1804	old_errno = errno; /* save errno because write will clobber it */
1805
1806	#if EV_USE_EVENTFD
1807	if (evfd >= 0)
1808	{
1809	uint64_t counter = 1;
1810	write (evfd, &counter, sizeof (uint64_t));
1811	}
1812	else
1813	#endif
1814	{
1815	/* win32 people keep sending patches that change this write() to send() */
1816	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1817	/* so when you think this write should be a send instead, please find out */
1818	/* where your send() is from - it's definitely not the microsoft send, and */
1819	/* tell me. thank you. */
1820	write (evpipe [1], &(evpipe [1]), 1);	1952	write (evpipe [1], &(evpipe [1]), 1);
		1953	#endif
1821	}	1954	}
1822		1955
1823	errno = old_errno;	1956	errno = old_errno;
1824	}	1957	}
1825	}	1958	}
…		…
1832	int i;	1965	int i;
1833		1966
1834	if (revents & EV_READ)	1967	if (revents & EV_READ)
1835	{	1968	{
1836	#if EV_USE_EVENTFD	1969	#if EV_USE_EVENTFD
1837	if (evfd >= 0)	1970	if (evpipe [0] < 0)
1838	{	1971	{
1839	uint64_t counter;	1972	uint64_t counter;
1840	read (evfd, &counter, sizeof (uint64_t));	1973	read (evpipe [1], &counter, sizeof (uint64_t));
1841	}	1974	}
1842	else	1975	else
1843	#endif	1976	#endif
1844	{	1977	{
1845	char dummy;	1978	char dummy[4];
1846	/* 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
1847	read (evpipe [0], &dummy, 1);	1987	read (evpipe [0], &dummy, sizeof (dummy));
		1988	#endif
1848	}	1989	}
1849	}	1990	}
1850		1991
1851	pipe_write_skipped = 0;	1992	pipe_write_skipped = 0;
		1993
		1994	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1852		1995
1853	#if EV_SIGNAL_ENABLE	1996	#if EV_SIGNAL_ENABLE
1854	if (sig_pending)	1997	if (sig_pending)
1855	{	1998	{
1856	sig_pending = 0;	1999	sig_pending = 0;
		2000
		2001	ECB_MEMORY_FENCE;
1857		2002
1858	for (i = EV_NSIG - 1; i--; )	2003	for (i = EV_NSIG - 1; i--; )
1859	if (expect_false (signals [i].pending))	2004	if (expect_false (signals [i].pending))
1860	ev_feed_signal_event (EV_A_ i + 1);	2005	ev_feed_signal_event (EV_A_ i + 1);
1861	}	2006	}
…		…
1863		2008
1864	#if EV_ASYNC_ENABLE	2009	#if EV_ASYNC_ENABLE
1865	if (async_pending)	2010	if (async_pending)
1866	{	2011	{
1867	async_pending = 0;	2012	async_pending = 0;
		2013
		2014	ECB_MEMORY_FENCE;
1868		2015
1869	for (i = asynccnt; i--; )	2016	for (i = asynccnt; i--; )
1870	if (asyncs [i]->sent)	2017	if (asyncs [i]->sent)
1871	{	2018	{
1872	asyncs [i]->sent = 0;	2019	asyncs [i]->sent = 0;
		2020	ECB_MEMORY_FENCE_RELEASE;
1873	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2021	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1874	}	2022	}
1875	}	2023	}
1876	#endif	2024	#endif
1877	}	2025	}
1878		2026
1879	/*****************************************************************************/	2027	/*****************************************************************************/
1880		2028
1881	void	2029	void
1882	ev_feed_signal (int signum)	2030	ev_feed_signal (int signum) EV_THROW
1883	{	2031	{
1884	#if EV_MULTIPLICITY	2032	#if EV_MULTIPLICITY
		2033	ECB_MEMORY_FENCE_ACQUIRE;
1885	EV_P = signals [signum - 1].loop;	2034	EV_P = signals [signum - 1].loop;
1886		2035
1887	if (!EV_A)	2036	if (!EV_A)
1888	return;	2037	return;
1889	#endif	2038	#endif
1890		2039
1891	if (!ev_active (&pipe_w))
1892	return;
1893
1894	signals [signum - 1].pending = 1;	2040	signals [signum - 1].pending = 1;
1895	evpipe_write (EV_A_ &sig_pending);	2041	evpipe_write (EV_A_ &sig_pending);
1896	}	2042	}
1897		2043
1898	static void	2044	static void
…		…
1904		2050
1905	ev_feed_signal (signum);	2051	ev_feed_signal (signum);
1906	}	2052	}
1907		2053
1908	void noinline	2054	void noinline
1909	ev_feed_signal_event (EV_P_ int signum)	2055	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1910	{	2056	{
1911	WL w;	2057	WL w;
1912		2058
1913	if (expect_false (signum <= 0 || signum > EV_NSIG))	2059	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1914	return;	2060	return;
1915		2061
1916	--signum;	2062	--signum;
1917		2063
1918	#if EV_MULTIPLICITY	2064	#if EV_MULTIPLICITY
…		…
1922	if (expect_false (signals [signum].loop != EV_A))	2068	if (expect_false (signals [signum].loop != EV_A))
1923	return;	2069	return;
1924	#endif	2070	#endif
1925		2071
1926	signals [signum].pending = 0;	2072	signals [signum].pending = 0;
		2073	ECB_MEMORY_FENCE_RELEASE;
1927		2074
1928	for (w = signals [signum].head; w; w = w->next)	2075	for (w = signals [signum].head; w; w = w->next)
1929	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2076	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1930	}	2077	}
1931		2078
…		…
2030	#if EV_USE_SELECT	2177	#if EV_USE_SELECT
2031	# include "ev_select.c"	2178	# include "ev_select.c"
2032	#endif	2179	#endif
2033		2180
2034	int ecb_cold	2181	int ecb_cold
2035	ev_version_major (void)	2182	ev_version_major (void) EV_THROW
2036	{	2183	{
2037	return EV_VERSION_MAJOR;	2184	return EV_VERSION_MAJOR;
2038	}	2185	}
2039		2186
2040	int ecb_cold	2187	int ecb_cold
2041	ev_version_minor (void)	2188	ev_version_minor (void) EV_THROW
2042	{	2189	{
2043	return EV_VERSION_MINOR;	2190	return EV_VERSION_MINOR;
2044	}	2191	}
2045		2192
2046	/* 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 */
…		…
2054	|| getgid () != getegid ();	2201	|| getgid () != getegid ();
2055	#endif	2202	#endif
2056	}	2203	}
2057		2204
2058	unsigned int ecb_cold	2205	unsigned int ecb_cold
2059	ev_supported_backends (void)	2206	ev_supported_backends (void) EV_THROW
2060	{	2207	{
2061	unsigned int flags = 0;	2208	unsigned int flags = 0;
2062		2209
2063	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2210	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2064	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2211	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2068		2215
2069	return flags;	2216	return flags;
2070	}	2217	}
2071		2218
2072	unsigned int ecb_cold	2219	unsigned int ecb_cold
2073	ev_recommended_backends (void)	2220	ev_recommended_backends (void) EV_THROW
2074	{	2221	{
2075	unsigned int flags = ev_supported_backends ();	2222	unsigned int flags = ev_supported_backends ();
2076		2223
2077	#ifndef __NetBSD__	2224	#ifndef __NetBSD__
2078	/* kqueue is borked on everything but netbsd apparently */	2225	/* kqueue is borked on everything but netbsd apparently */
…		…
2090		2237
2091	return flags;	2238	return flags;
2092	}	2239	}
2093		2240
2094	unsigned int ecb_cold	2241	unsigned int ecb_cold
2095	ev_embeddable_backends (void)	2242	ev_embeddable_backends (void) EV_THROW
2096	{	2243	{
2097	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2244	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2098		2245
2099	/* 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 */
2100	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 */
…		…
2102		2249
2103	return flags;	2250	return flags;
2104	}	2251	}
2105		2252
2106	unsigned int	2253	unsigned int
2107	ev_backend (EV_P)	2254	ev_backend (EV_P) EV_THROW
2108	{	2255	{
2109	return backend;	2256	return backend;
2110	}	2257	}
2111		2258
2112	#if EV_FEATURE_API	2259	#if EV_FEATURE_API
2113	unsigned int	2260	unsigned int
2114	ev_iteration (EV_P)	2261	ev_iteration (EV_P) EV_THROW
2115	{	2262	{
2116	return loop_count;	2263	return loop_count;
2117	}	2264	}
2118		2265
2119	unsigned int	2266	unsigned int
2120	ev_depth (EV_P)	2267	ev_depth (EV_P) EV_THROW
2121	{	2268	{
2122	return loop_depth;	2269	return loop_depth;
2123	}	2270	}
2124		2271
2125	void	2272	void
2126	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2273	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2127	{	2274	{
2128	io_blocktime = interval;	2275	io_blocktime = interval;
2129	}	2276	}
2130		2277
2131	void	2278	void
2132	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2279	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2133	{	2280	{
2134	timeout_blocktime = interval;	2281	timeout_blocktime = interval;
2135	}	2282	}
2136		2283
2137	void	2284	void
2138	ev_set_userdata (EV_P_ void *data)	2285	ev_set_userdata (EV_P_ void *data) EV_THROW
2139	{	2286	{
2140	userdata = data;	2287	userdata = data;
2141	}	2288	}
2142		2289
2143	void *	2290	void *
2144	ev_userdata (EV_P)	2291	ev_userdata (EV_P) EV_THROW
2145	{	2292	{
2146	return userdata;	2293	return userdata;
2147	}	2294	}
2148		2295
2149	void	2296	void
2150	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
2151	{	2298	{
2152	invoke_cb = invoke_pending_cb;	2299	invoke_cb = invoke_pending_cb;
2153	}	2300	}
2154		2301
2155	void	2302	void
2156	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
2157	{	2304	{
2158	release_cb = release;	2305	release_cb = release;
2159	acquire_cb = acquire;	2306	acquire_cb = acquire;
2160	}	2307	}
2161	#endif	2308	#endif
2162		2309
2163	/* initialise a loop structure, must be zero-initialised */	2310	/* initialise a loop structure, must be zero-initialised */
2164	static void noinline ecb_cold	2311	static void noinline ecb_cold
2165	loop_init (EV_P_ unsigned int flags)	2312	loop_init (EV_P_ unsigned int flags) EV_THROW
2166	{	2313	{
2167	if (!backend)	2314	if (!backend)
2168	{	2315	{
2169	origflags = flags;	2316	origflags = flags;
2170		2317
…		…
2215	#if EV_ASYNC_ENABLE	2362	#if EV_ASYNC_ENABLE
2216	async_pending = 0;	2363	async_pending = 0;
2217	#endif	2364	#endif
2218	pipe_write_skipped = 0;	2365	pipe_write_skipped = 0;
2219	pipe_write_wanted = 0;	2366	pipe_write_wanted = 0;
		2367	evpipe [0] = -1;
		2368	evpipe [1] = -1;
2220	#if EV_USE_INOTIFY	2369	#if EV_USE_INOTIFY
2221	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2370	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2222	#endif	2371	#endif
2223	#if EV_USE_SIGNALFD	2372	#if EV_USE_SIGNALFD
2224	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2373	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2275	EV_INVOKE_PENDING;	2424	EV_INVOKE_PENDING;
2276	}	2425	}
2277	#endif	2426	#endif
2278		2427
2279	#if EV_CHILD_ENABLE	2428	#if EV_CHILD_ENABLE
2280	if (ev_is_active (&childev))	2429	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2281	{	2430	{
2282	ev_ref (EV_A); /* child watcher */	2431	ev_ref (EV_A); /* child watcher */
2283	ev_signal_stop (EV_A_ &childev);	2432	ev_signal_stop (EV_A_ &childev);
2284	}	2433	}
2285	#endif	2434	#endif
…		…
2287	if (ev_is_active (&pipe_w))	2436	if (ev_is_active (&pipe_w))
2288	{	2437	{
2289	/*ev_ref (EV_A);*/	2438	/*ev_ref (EV_A);*/
2290	/*ev_io_stop (EV_A_ &pipe_w);*/	2439	/*ev_io_stop (EV_A_ &pipe_w);*/
2291		2440
2292	#if EV_USE_EVENTFD
2293	if (evfd >= 0)
2294	close (evfd);
2295	#endif
2296
2297	if (evpipe [0] >= 0)
2298	{
2299	EV_WIN32_CLOSE_FD (evpipe [0]);	2441	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2300	EV_WIN32_CLOSE_FD (evpipe [1]);	2442	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2301	}
2302	}	2443	}
2303		2444
2304	#if EV_USE_SIGNALFD	2445	#if EV_USE_SIGNALFD
2305	if (ev_is_active (&sigfd_w))	2446	if (ev_is_active (&sigfd_w))
2306	close (sigfd);	2447	close (sigfd);
…		…
2392	#endif	2533	#endif
2393	#if EV_USE_INOTIFY	2534	#if EV_USE_INOTIFY
2394	infy_fork (EV_A);	2535	infy_fork (EV_A);
2395	#endif	2536	#endif
2396		2537
		2538	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2397	if (ev_is_active (&pipe_w))	2539	if (ev_is_active (&pipe_w))
2398	{	2540	{
2399	/* 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 */
2400		2542
2401	ev_ref (EV_A);	2543	ev_ref (EV_A);
2402	ev_io_stop (EV_A_ &pipe_w);	2544	ev_io_stop (EV_A_ &pipe_w);
2403		2545
2404	#if EV_USE_EVENTFD
2405	if (evfd >= 0)
2406	close (evfd);
2407	#endif
2408
2409	if (evpipe [0] >= 0)	2546	if (evpipe [0] >= 0)
2410	{
2411	EV_WIN32_CLOSE_FD (evpipe [0]);	2547	EV_WIN32_CLOSE_FD (evpipe [0]);
2412	EV_WIN32_CLOSE_FD (evpipe [1]);
2413	}
2414		2548
2415	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2416	evpipe_init (EV_A);	2549	evpipe_init (EV_A);
2417	/* now iterate over everything, in case we missed something */	2550	/* iterate over everything, in case we missed something before */
2418	pipecb (EV_A_ &pipe_w, EV_READ);	2551	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2419	#endif
2420	}	2552	}
		2553	#endif
2421		2554
2422	postfork = 0;	2555	postfork = 0;
2423	}	2556	}
2424		2557
2425	#if EV_MULTIPLICITY	2558	#if EV_MULTIPLICITY
2426		2559
2427	struct ev_loop * ecb_cold	2560	struct ev_loop * ecb_cold
2428	ev_loop_new (unsigned int flags)	2561	ev_loop_new (unsigned int flags) EV_THROW
2429	{	2562	{
2430	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2563	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2431		2564
2432	memset (EV_A, 0, sizeof (struct ev_loop));	2565	memset (EV_A, 0, sizeof (struct ev_loop));
2433	loop_init (EV_A_ flags);	2566	loop_init (EV_A_ flags);
…		…
2477	}	2610	}
2478	#endif	2611	#endif
2479		2612
2480	#if EV_FEATURE_API	2613	#if EV_FEATURE_API
2481	void ecb_cold	2614	void ecb_cold
2482	ev_verify (EV_P)	2615	ev_verify (EV_P) EV_THROW
2483	{	2616	{
2484	#if EV_VERIFY	2617	#if EV_VERIFY
2485	int i;	2618	int i;
2486	WL w;	2619	WL w, w2;
2487		2620
2488	assert (activecnt >= -1);	2621	assert (activecnt >= -1);
2489		2622
2490	assert (fdchangemax >= fdchangecnt);	2623	assert (fdchangemax >= fdchangecnt);
2491	for (i = 0; i < fdchangecnt; ++i)	2624	for (i = 0; i < fdchangecnt; ++i)
2492	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2625	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2493		2626
2494	assert (anfdmax >= 0);	2627	assert (anfdmax >= 0);
2495	for (i = 0; i < anfdmax; ++i)	2628	for (i = 0; i < anfdmax; ++i)
		2629	{
		2630	int j = 0;
		2631
2496	for (w = anfds [i].head; w; w = w->next)	2632	for (w = w2 = anfds [i].head; w; w = w->next)
2497	{	2633	{
2498	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
2499	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));
2500	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));
2501	}	2644	}
		2645	}
2502		2646
2503	assert (timermax >= timercnt);	2647	assert (timermax >= timercnt);
2504	verify_heap (EV_A_ timers, timercnt);	2648	verify_heap (EV_A_ timers, timercnt);
2505		2649
2506	#if EV_PERIODIC_ENABLE	2650	#if EV_PERIODIC_ENABLE
…		…
2556	#if EV_MULTIPLICITY	2700	#if EV_MULTIPLICITY
2557	struct ev_loop * ecb_cold	2701	struct ev_loop * ecb_cold
2558	#else	2702	#else
2559	int	2703	int
2560	#endif	2704	#endif
2561	ev_default_loop (unsigned int flags)	2705	ev_default_loop (unsigned int flags) EV_THROW
2562	{	2706	{
2563	if (!ev_default_loop_ptr)	2707	if (!ev_default_loop_ptr)
2564	{	2708	{
2565	#if EV_MULTIPLICITY	2709	#if EV_MULTIPLICITY
2566	EV_P = ev_default_loop_ptr = &default_loop_struct;	2710	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2585		2729
2586	return ev_default_loop_ptr;	2730	return ev_default_loop_ptr;
2587	}	2731	}
2588		2732
2589	void	2733	void
2590	ev_loop_fork (EV_P)	2734	ev_loop_fork (EV_P) EV_THROW
2591	{	2735	{
2592	postfork = 1; /* must be in line with ev_default_fork */	2736	postfork = 1;
2593	}	2737	}
2594		2738
2595	/*****************************************************************************/	2739	/*****************************************************************************/
2596		2740
2597	void	2741	void
…		…
2599	{	2743	{
2600	EV_CB_INVOKE ((W)w, revents);	2744	EV_CB_INVOKE ((W)w, revents);
2601	}	2745	}
2602		2746
2603	unsigned int	2747	unsigned int
2604	ev_pending_count (EV_P)	2748	ev_pending_count (EV_P) EV_THROW
2605	{	2749	{
2606	int pri;	2750	int pri;
2607	unsigned int count = 0;	2751	unsigned int count = 0;
2608		2752
2609	for (pri = NUMPRI; pri--; )	2753	for (pri = NUMPRI; pri--; )
…		…
2613	}	2757	}
2614		2758
2615	void noinline	2759	void noinline
2616	ev_invoke_pending (EV_P)	2760	ev_invoke_pending (EV_P)
2617	{	2761	{
2618	int pri;	2762	pendingpri = NUMPRI;
2619		2763
2620	for (pri = NUMPRI; pri--; )	2764	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2765	{
		2766	--pendingpri;
		2767
2621	while (pendingcnt [pri])	2768	while (pendingcnt [pendingpri])
2622	{	2769	{
2623	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2770	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2624		2771
2625	p->w->pending = 0;	2772	p->w->pending = 0;
2626	EV_CB_INVOKE (p->w, p->events);	2773	EV_CB_INVOKE (p->w, p->events);
2627	EV_FREQUENT_CHECK;	2774	EV_FREQUENT_CHECK;
2628	}	2775	}
		2776	}
2629	}	2777	}
2630		2778
2631	#if EV_IDLE_ENABLE	2779	#if EV_IDLE_ENABLE
2632	/* make idle watchers pending. this handles the "call-idle */	2780	/* make idle watchers pending. this handles the "call-idle */
2633	/* only when higher priorities are idle" logic */	2781	/* only when higher priorities are idle" logic */
…		…
2723	{	2871	{
2724	EV_FREQUENT_CHECK;	2872	EV_FREQUENT_CHECK;
2725		2873
2726	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2874	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2727	{	2875	{
2728	int feed_count = 0;
2729
2730	do	2876	do
2731	{	2877	{
2732	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2878	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2733		2879
2734	/*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)));*/
…		…
2868		3014
2869	mn_now = ev_rt_now;	3015	mn_now = ev_rt_now;
2870	}	3016	}
2871	}	3017	}
2872		3018
2873	void	3019	int
2874	ev_run (EV_P_ int flags)	3020	ev_run (EV_P_ int flags)
2875	{	3021	{
2876	#if EV_FEATURE_API	3022	#if EV_FEATURE_API
2877	++loop_depth;	3023	++loop_depth;
2878	#endif	3024	#endif
…		…
2993	backend_poll (EV_A_ waittime);	3139	backend_poll (EV_A_ waittime);
2994	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3140	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2995		3141
2996	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3142	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2997		3143
		3144	ECB_MEMORY_FENCE_ACQUIRE;
2998	if (pipe_write_skipped)	3145	if (pipe_write_skipped)
2999	{	3146	{
3000	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)));
3001	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3148	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3002	}	3149	}
…		…
3035	loop_done = EVBREAK_CANCEL;	3182	loop_done = EVBREAK_CANCEL;
3036		3183
3037	#if EV_FEATURE_API	3184	#if EV_FEATURE_API
3038	--loop_depth;	3185	--loop_depth;
3039	#endif	3186	#endif
		3187
		3188	return activecnt;
3040	}	3189	}
3041		3190
3042	void	3191	void
3043	ev_break (EV_P_ int how)	3192	ev_break (EV_P_ int how) EV_THROW
3044	{	3193	{
3045	loop_done = how;	3194	loop_done = how;
3046	}	3195	}
3047		3196
3048	void	3197	void
3049	ev_ref (EV_P)	3198	ev_ref (EV_P) EV_THROW
3050	{	3199	{
3051	++activecnt;	3200	++activecnt;
3052	}	3201	}
3053		3202
3054	void	3203	void
3055	ev_unref (EV_P)	3204	ev_unref (EV_P) EV_THROW
3056	{	3205	{
3057	--activecnt;	3206	--activecnt;
3058	}	3207	}
3059		3208
3060	void	3209	void
3061	ev_now_update (EV_P)	3210	ev_now_update (EV_P) EV_THROW
3062	{	3211	{
3063	time_update (EV_A_ 1e100);	3212	time_update (EV_A_ 1e100);
3064	}	3213	}
3065		3214
3066	void	3215	void
3067	ev_suspend (EV_P)	3216	ev_suspend (EV_P) EV_THROW
3068	{	3217	{
3069	ev_now_update (EV_A);	3218	ev_now_update (EV_A);
3070	}	3219	}
3071		3220
3072	void	3221	void
3073	ev_resume (EV_P)	3222	ev_resume (EV_P) EV_THROW
3074	{	3223	{
3075	ev_tstamp mn_prev = mn_now;	3224	ev_tstamp mn_prev = mn_now;
3076		3225
3077	ev_now_update (EV_A);	3226	ev_now_update (EV_A);
3078	timers_reschedule (EV_A_ mn_now - mn_prev);	3227	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3117	w->pending = 0;	3266	w->pending = 0;
3118	}	3267	}
3119	}	3268	}
3120		3269
3121	int	3270	int
3122	ev_clear_pending (EV_P_ void *w)	3271	ev_clear_pending (EV_P_ void *w) EV_THROW
3123	{	3272	{
3124	W w_ = (W)w;	3273	W w_ = (W)w;
3125	int pending = w_->pending;	3274	int pending = w_->pending;
3126		3275
3127	if (expect_true (pending))	3276	if (expect_true (pending))
…		…
3160	}	3309	}
3161		3310
3162	/*****************************************************************************/	3311	/*****************************************************************************/
3163		3312
3164	void noinline	3313	void noinline
3165	ev_io_start (EV_P_ ev_io *w)	3314	ev_io_start (EV_P_ ev_io *w) EV_THROW
3166	{	3315	{
3167	int fd = w->fd;	3316	int fd = w->fd;
3168		3317
3169	if (expect_false (ev_is_active (w)))	3318	if (expect_false (ev_is_active (w)))
3170	return;	3319	return;
…		…
3176		3325
3177	ev_start (EV_A_ (W)w, 1);	3326	ev_start (EV_A_ (W)w, 1);
3178	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3327	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3179	wlist_add (&anfds[fd].head, (WL)w);	3328	wlist_add (&anfds[fd].head, (WL)w);
3180		3329
		3330	/* common bug, apparently */
		3331	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3332
3181	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);
3182	w->events &= ~EV__IOFDSET;	3334	w->events &= ~EV__IOFDSET;
3183		3335
3184	EV_FREQUENT_CHECK;	3336	EV_FREQUENT_CHECK;
3185	}	3337	}
3186		3338
3187	void noinline	3339	void noinline
3188	ev_io_stop (EV_P_ ev_io *w)	3340	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3189	{	3341	{
3190	clear_pending (EV_A_ (W)w);	3342	clear_pending (EV_A_ (W)w);
3191	if (expect_false (!ev_is_active (w)))	3343	if (expect_false (!ev_is_active (w)))
3192	return;	3344	return;
3193		3345
…		…
3202		3354
3203	EV_FREQUENT_CHECK;	3355	EV_FREQUENT_CHECK;
3204	}	3356	}
3205		3357
3206	void noinline	3358	void noinline
3207	ev_timer_start (EV_P_ ev_timer *w)	3359	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3208	{	3360	{
3209	if (expect_false (ev_is_active (w)))	3361	if (expect_false (ev_is_active (w)))
3210	return;	3362	return;
3211		3363
3212	ev_at (w) += mn_now;	3364	ev_at (w) += mn_now;
…		…
3226		3378
3227	/*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));*/
3228	}	3380	}
3229		3381
3230	void noinline	3382	void noinline
3231	ev_timer_stop (EV_P_ ev_timer *w)	3383	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3232	{	3384	{
3233	clear_pending (EV_A_ (W)w);	3385	clear_pending (EV_A_ (W)w);
3234	if (expect_false (!ev_is_active (w)))	3386	if (expect_false (!ev_is_active (w)))
3235	return;	3387	return;
3236		3388
…		…
3256		3408
3257	EV_FREQUENT_CHECK;	3409	EV_FREQUENT_CHECK;
3258	}	3410	}
3259		3411
3260	void noinline	3412	void noinline
3261	ev_timer_again (EV_P_ ev_timer *w)	3413	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3262	{	3414	{
3263	EV_FREQUENT_CHECK;	3415	EV_FREQUENT_CHECK;
		3416
		3417	clear_pending (EV_A_ (W)w);
3264		3418
3265	if (ev_is_active (w))	3419	if (ev_is_active (w))
3266	{	3420	{
3267	if (w->repeat)	3421	if (w->repeat)
3268	{	3422	{
…		…
3281		3435
3282	EV_FREQUENT_CHECK;	3436	EV_FREQUENT_CHECK;
3283	}	3437	}
3284		3438
3285	ev_tstamp	3439	ev_tstamp
3286	ev_timer_remaining (EV_P_ ev_timer *w)	3440	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3287	{	3441	{
3288	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3442	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3289	}	3443	}
3290		3444
3291	#if EV_PERIODIC_ENABLE	3445	#if EV_PERIODIC_ENABLE
3292	void noinline	3446	void noinline
3293	ev_periodic_start (EV_P_ ev_periodic *w)	3447	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3294	{	3448	{
3295	if (expect_false (ev_is_active (w)))	3449	if (expect_false (ev_is_active (w)))
3296	return;	3450	return;
3297		3451
3298	if (w->reschedule_cb)	3452	if (w->reschedule_cb)
…		…
3318		3472
3319	/*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));*/
3320	}	3474	}
3321		3475
3322	void noinline	3476	void noinline
3323	ev_periodic_stop (EV_P_ ev_periodic *w)	3477	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3324	{	3478	{
3325	clear_pending (EV_A_ (W)w);	3479	clear_pending (EV_A_ (W)w);
3326	if (expect_false (!ev_is_active (w)))	3480	if (expect_false (!ev_is_active (w)))
3327	return;	3481	return;
3328		3482
…		…
3346		3500
3347	EV_FREQUENT_CHECK;	3501	EV_FREQUENT_CHECK;
3348	}	3502	}
3349		3503
3350	void noinline	3504	void noinline
3351	ev_periodic_again (EV_P_ ev_periodic *w)	3505	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3352	{	3506	{
3353	/* TODO: use adjustheap and recalculation */	3507	/* TODO: use adjustheap and recalculation */
3354	ev_periodic_stop (EV_A_ w);	3508	ev_periodic_stop (EV_A_ w);
3355	ev_periodic_start (EV_A_ w);	3509	ev_periodic_start (EV_A_ w);
3356	}	3510	}
…		…
3361	#endif	3515	#endif
3362		3516
3363	#if EV_SIGNAL_ENABLE	3517	#if EV_SIGNAL_ENABLE
3364		3518
3365	void noinline	3519	void noinline
3366	ev_signal_start (EV_P_ ev_signal *w)	3520	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3367	{	3521	{
3368	if (expect_false (ev_is_active (w)))	3522	if (expect_false (ev_is_active (w)))
3369	return;	3523	return;
3370		3524
3371	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));
…		…
3373	#if EV_MULTIPLICITY	3527	#if EV_MULTIPLICITY
3374	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",
3375	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3529	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3376		3530
3377	signals [w->signum - 1].loop = EV_A;	3531	signals [w->signum - 1].loop = EV_A;
		3532	ECB_MEMORY_FENCE_RELEASE;
3378	#endif	3533	#endif
3379		3534
3380	EV_FREQUENT_CHECK;	3535	EV_FREQUENT_CHECK;
3381		3536
3382	#if EV_USE_SIGNALFD	3537	#if EV_USE_SIGNALFD
…		…
3442		3597
3443	EV_FREQUENT_CHECK;	3598	EV_FREQUENT_CHECK;
3444	}	3599	}
3445		3600
3446	void noinline	3601	void noinline
3447	ev_signal_stop (EV_P_ ev_signal *w)	3602	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3448	{	3603	{
3449	clear_pending (EV_A_ (W)w);	3604	clear_pending (EV_A_ (W)w);
3450	if (expect_false (!ev_is_active (w)))	3605	if (expect_false (!ev_is_active (w)))
3451	return;	3606	return;
3452		3607
…		…
3483	#endif	3638	#endif
3484		3639
3485	#if EV_CHILD_ENABLE	3640	#if EV_CHILD_ENABLE
3486		3641
3487	void	3642	void
3488	ev_child_start (EV_P_ ev_child *w)	3643	ev_child_start (EV_P_ ev_child *w) EV_THROW
3489	{	3644	{
3490	#if EV_MULTIPLICITY	3645	#if EV_MULTIPLICITY
3491	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));
3492	#endif	3647	#endif
3493	if (expect_false (ev_is_active (w)))	3648	if (expect_false (ev_is_active (w)))
…		…
3500		3655
3501	EV_FREQUENT_CHECK;	3656	EV_FREQUENT_CHECK;
3502	}	3657	}
3503		3658
3504	void	3659	void
3505	ev_child_stop (EV_P_ ev_child *w)	3660	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3506	{	3661	{
3507	clear_pending (EV_A_ (W)w);	3662	clear_pending (EV_A_ (W)w);
3508	if (expect_false (!ev_is_active (w)))	3663	if (expect_false (!ev_is_active (w)))
3509	return;	3664	return;
3510		3665
…		…
3677	}	3832	}
3678		3833
3679	inline_size int	3834	inline_size int
3680	infy_newfd (void)	3835	infy_newfd (void)
3681	{	3836	{
3682	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	3837	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3683	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	3838	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3684	if (fd >= 0)	3839	if (fd >= 0)
3685	return fd;	3840	return fd;
3686	#endif	3841	#endif
3687	return inotify_init ();	3842	return inotify_init ();
…		…
3762	#else	3917	#else
3763	# define EV_LSTAT(p,b) lstat (p, b)	3918	# define EV_LSTAT(p,b) lstat (p, b)
3764	#endif	3919	#endif
3765		3920
3766	void	3921	void
3767	ev_stat_stat (EV_P_ ev_stat *w)	3922	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3768	{	3923	{
3769	if (lstat (w->path, &w->attr) < 0)	3924	if (lstat (w->path, &w->attr) < 0)
3770	w->attr.st_nlink = 0;	3925	w->attr.st_nlink = 0;
3771	else if (!w->attr.st_nlink)	3926	else if (!w->attr.st_nlink)
3772	w->attr.st_nlink = 1;	3927	w->attr.st_nlink = 1;
…		…
3811	ev_feed_event (EV_A_ w, EV_STAT);	3966	ev_feed_event (EV_A_ w, EV_STAT);
3812	}	3967	}
3813	}	3968	}
3814		3969
3815	void	3970	void
3816	ev_stat_start (EV_P_ ev_stat *w)	3971	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3817	{	3972	{
3818	if (expect_false (ev_is_active (w)))	3973	if (expect_false (ev_is_active (w)))
3819	return;	3974	return;
3820		3975
3821	ev_stat_stat (EV_A_ w);	3976	ev_stat_stat (EV_A_ w);
…		…
3842		3997
3843	EV_FREQUENT_CHECK;	3998	EV_FREQUENT_CHECK;
3844	}	3999	}
3845		4000
3846	void	4001	void
3847	ev_stat_stop (EV_P_ ev_stat *w)	4002	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3848	{	4003	{
3849	clear_pending (EV_A_ (W)w);	4004	clear_pending (EV_A_ (W)w);
3850	if (expect_false (!ev_is_active (w)))	4005	if (expect_false (!ev_is_active (w)))
3851	return;	4006	return;
3852		4007
…		…
3868	}	4023	}
3869	#endif	4024	#endif
3870		4025
3871	#if EV_IDLE_ENABLE	4026	#if EV_IDLE_ENABLE
3872	void	4027	void
3873	ev_idle_start (EV_P_ ev_idle *w)	4028	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3874	{	4029	{
3875	if (expect_false (ev_is_active (w)))	4030	if (expect_false (ev_is_active (w)))
3876	return;	4031	return;
3877		4032
3878	pri_adjust (EV_A_ (W)w);	4033	pri_adjust (EV_A_ (W)w);
…		…
3891		4046
3892	EV_FREQUENT_CHECK;	4047	EV_FREQUENT_CHECK;
3893	}	4048	}
3894		4049
3895	void	4050	void
3896	ev_idle_stop (EV_P_ ev_idle *w)	4051	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3897	{	4052	{
3898	clear_pending (EV_A_ (W)w);	4053	clear_pending (EV_A_ (W)w);
3899	if (expect_false (!ev_is_active (w)))	4054	if (expect_false (!ev_is_active (w)))
3900	return;	4055	return;
3901		4056
…		…
3915	}	4070	}
3916	#endif	4071	#endif
3917		4072
3918	#if EV_PREPARE_ENABLE	4073	#if EV_PREPARE_ENABLE
3919	void	4074	void
3920	ev_prepare_start (EV_P_ ev_prepare *w)	4075	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3921	{	4076	{
3922	if (expect_false (ev_is_active (w)))	4077	if (expect_false (ev_is_active (w)))
3923	return;	4078	return;
3924		4079
3925	EV_FREQUENT_CHECK;	4080	EV_FREQUENT_CHECK;
…		…
3930		4085
3931	EV_FREQUENT_CHECK;	4086	EV_FREQUENT_CHECK;
3932	}	4087	}
3933		4088
3934	void	4089	void
3935	ev_prepare_stop (EV_P_ ev_prepare *w)	4090	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3936	{	4091	{
3937	clear_pending (EV_A_ (W)w);	4092	clear_pending (EV_A_ (W)w);
3938	if (expect_false (!ev_is_active (w)))	4093	if (expect_false (!ev_is_active (w)))
3939	return;	4094	return;
3940		4095
…		…
3953	}	4108	}
3954	#endif	4109	#endif
3955		4110
3956	#if EV_CHECK_ENABLE	4111	#if EV_CHECK_ENABLE
3957	void	4112	void
3958	ev_check_start (EV_P_ ev_check *w)	4113	ev_check_start (EV_P_ ev_check *w) EV_THROW
3959	{	4114	{
3960	if (expect_false (ev_is_active (w)))	4115	if (expect_false (ev_is_active (w)))
3961	return;	4116	return;
3962		4117
3963	EV_FREQUENT_CHECK;	4118	EV_FREQUENT_CHECK;
…		…
3968		4123
3969	EV_FREQUENT_CHECK;	4124	EV_FREQUENT_CHECK;
3970	}	4125	}
3971		4126
3972	void	4127	void
3973	ev_check_stop (EV_P_ ev_check *w)	4128	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3974	{	4129	{
3975	clear_pending (EV_A_ (W)w);	4130	clear_pending (EV_A_ (W)w);
3976	if (expect_false (!ev_is_active (w)))	4131	if (expect_false (!ev_is_active (w)))
3977	return;	4132	return;
3978		4133
…		…
3991	}	4146	}
3992	#endif	4147	#endif
3993		4148
3994	#if EV_EMBED_ENABLE	4149	#if EV_EMBED_ENABLE
3995	void noinline	4150	void noinline
3996	ev_embed_sweep (EV_P_ ev_embed *w)	4151	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3997	{	4152	{
3998	ev_run (w->other, EVRUN_NOWAIT);	4153	ev_run (w->other, EVRUN_NOWAIT);
3999	}	4154	}
4000		4155
4001	static void	4156	static void
…		…
4049	ev_idle_stop (EV_A_ idle);	4204	ev_idle_stop (EV_A_ idle);
4050	}	4205	}
4051	#endif	4206	#endif
4052		4207
4053	void	4208	void
4054	ev_embed_start (EV_P_ ev_embed *w)	4209	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4055	{	4210	{
4056	if (expect_false (ev_is_active (w)))	4211	if (expect_false (ev_is_active (w)))
4057	return;	4212	return;
4058		4213
4059	{	4214	{
…		…
4080		4235
4081	EV_FREQUENT_CHECK;	4236	EV_FREQUENT_CHECK;
4082	}	4237	}
4083		4238
4084	void	4239	void
4085	ev_embed_stop (EV_P_ ev_embed *w)	4240	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4086	{	4241	{
4087	clear_pending (EV_A_ (W)w);	4242	clear_pending (EV_A_ (W)w);
4088	if (expect_false (!ev_is_active (w)))	4243	if (expect_false (!ev_is_active (w)))
4089	return;	4244	return;
4090		4245
…		…
4100	}	4255	}
4101	#endif	4256	#endif
4102		4257
4103	#if EV_FORK_ENABLE	4258	#if EV_FORK_ENABLE
4104	void	4259	void
4105	ev_fork_start (EV_P_ ev_fork *w)	4260	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4106	{	4261	{
4107	if (expect_false (ev_is_active (w)))	4262	if (expect_false (ev_is_active (w)))
4108	return;	4263	return;
4109		4264
4110	EV_FREQUENT_CHECK;	4265	EV_FREQUENT_CHECK;
…		…
4115		4270
4116	EV_FREQUENT_CHECK;	4271	EV_FREQUENT_CHECK;
4117	}	4272	}
4118		4273
4119	void	4274	void
4120	ev_fork_stop (EV_P_ ev_fork *w)	4275	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4121	{	4276	{
4122	clear_pending (EV_A_ (W)w);	4277	clear_pending (EV_A_ (W)w);
4123	if (expect_false (!ev_is_active (w)))	4278	if (expect_false (!ev_is_active (w)))
4124	return;	4279	return;
4125		4280
…		…
4138	}	4293	}
4139	#endif	4294	#endif
4140		4295
4141	#if EV_CLEANUP_ENABLE	4296	#if EV_CLEANUP_ENABLE
4142	void	4297	void
4143	ev_cleanup_start (EV_P_ ev_cleanup *w)	4298	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4144	{	4299	{
4145	if (expect_false (ev_is_active (w)))	4300	if (expect_false (ev_is_active (w)))
4146	return;	4301	return;
4147		4302
4148	EV_FREQUENT_CHECK;	4303	EV_FREQUENT_CHECK;
…		…
4155	ev_unref (EV_A);	4310	ev_unref (EV_A);
4156	EV_FREQUENT_CHECK;	4311	EV_FREQUENT_CHECK;
4157	}	4312	}
4158		4313
4159	void	4314	void
4160	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4315	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4161	{	4316	{
4162	clear_pending (EV_A_ (W)w);	4317	clear_pending (EV_A_ (W)w);
4163	if (expect_false (!ev_is_active (w)))	4318	if (expect_false (!ev_is_active (w)))
4164	return;	4319	return;
4165		4320
…		…
4179	}	4334	}
4180	#endif	4335	#endif
4181		4336
4182	#if EV_ASYNC_ENABLE	4337	#if EV_ASYNC_ENABLE
4183	void	4338	void
4184	ev_async_start (EV_P_ ev_async *w)	4339	ev_async_start (EV_P_ ev_async *w) EV_THROW
4185	{	4340	{
4186	if (expect_false (ev_is_active (w)))	4341	if (expect_false (ev_is_active (w)))
4187	return;	4342	return;
4188		4343
4189	w->sent = 0;	4344	w->sent = 0;
…		…
4198		4353
4199	EV_FREQUENT_CHECK;	4354	EV_FREQUENT_CHECK;
4200	}	4355	}
4201		4356
4202	void	4357	void
4203	ev_async_stop (EV_P_ ev_async *w)	4358	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4204	{	4359	{
4205	clear_pending (EV_A_ (W)w);	4360	clear_pending (EV_A_ (W)w);
4206	if (expect_false (!ev_is_active (w)))	4361	if (expect_false (!ev_is_active (w)))
4207	return;	4362	return;
4208		4363
…		…
4219		4374
4220	EV_FREQUENT_CHECK;	4375	EV_FREQUENT_CHECK;
4221	}	4376	}
4222		4377
4223	void	4378	void
4224	ev_async_send (EV_P_ ev_async *w)	4379	ev_async_send (EV_P_ ev_async *w) EV_THROW
4225	{	4380	{
4226	w->sent = 1;	4381	w->sent = 1;
4227	evpipe_write (EV_A_ &async_pending);	4382	evpipe_write (EV_A_ &async_pending);
4228	}	4383	}
4229	#endif	4384	#endif
…		…
4266		4421
4267	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));
4268	}	4423	}
4269		4424
4270	void	4425	void
4271	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
4272	{	4427	{
4273	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));
4274		4429
4275	if (expect_false (!once))	4430	if (expect_false (!once))
4276	{	4431	{
…		…
4298		4453
4299	/*****************************************************************************/	4454	/*****************************************************************************/
4300		4455
4301	#if EV_WALK_ENABLE	4456	#if EV_WALK_ENABLE
4302	void ecb_cold	4457	void ecb_cold
4303	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
4304	{	4459	{
4305	int i, j;	4460	int i, j;
4306	ev_watcher_list *wl, *wn;	4461	ev_watcher_list *wl, *wn;
4307		4462
4308	if (types & (EV_IO | EV_EMBED))	4463	if (types & (EV_IO | EV_EMBED))

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