ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.398 by root, Sun Sep 25 21:27:35 2011 UTC vs.
Revision 1.463 by root, Thu Jan 16 11:51:05 2014 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) 2007,2008,2009,2010,2011,2012,2013 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	EV_CPP(extern "C" {)	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
189		198
190	#ifndef _WIN32	199	#ifndef _WIN32
191	# include <sys/time.h>	200	# include <sys/time.h>
192	# include <sys/wait.h>	201	# include <sys/wait.h>
193	# include <unistd.h>	202	# include <unistd.h>
194	#else	203	#else
195	# include <io.h>	204	# include <io.h>
196	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
197	# include <windows.h>	207	# include <windows.h>
198	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
199	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
200	# endif	210	# endif
201	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
210	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
211		221
212	/* 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 */
213		223
214	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
215	#if defined (EV_NSIG)	225	#if defined EV_NSIG
216	/* use what's provided */	226	/* use what's provided */
217	#elif defined (NSIG)	227	#elif defined NSIG
218	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
219	#elif defined(_NSIG)	229	#elif defined _NSIG
220	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
221	#elif defined (SIGMAX)	231	#elif defined SIGMAX
222	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
223	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
224	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
225	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
226	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
227	#elif defined (MAXSIG)	237	#elif defined MAXSIG
228	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
229	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
230	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
231	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
232	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
234	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235	#else	245	#else
236	# error "unable to find value for NSIG, please report"	246	# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237	/* to make it compile regardless, just remove the above line, */
238	/* but consider reporting it, too! :) */
239	# define EV_NSIG 65
240	#endif	247	#endif
241		248
242	#ifndef EV_USE_FLOOR	249	#ifndef EV_USE_FLOOR
243	# define EV_USE_FLOOR 0	250	# define EV_USE_FLOOR 0
244	#endif	251	#endif
245		252
246	#ifndef EV_USE_CLOCK_SYSCALL	253	#ifndef EV_USE_CLOCK_SYSCALL
247	# if __linux && __GLIBC__ >= 2	254	# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	255	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249	# else	256	# else
250	# define EV_USE_CLOCK_SYSCALL 0	257	# define EV_USE_CLOCK_SYSCALL 0
251	# endif	258	# endif
252	#endif	259	#endif
253		260
254	#ifndef EV_USE_MONOTONIC	261	#ifndef EV_USE_MONOTONIC
255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	262	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256	# define EV_USE_MONOTONIC EV_FEATURE_OS	263	# define EV_USE_MONOTONIC EV_FEATURE_OS
257	# else	264	# else
258	# define EV_USE_MONOTONIC 0	265	# define EV_USE_MONOTONIC 0
259	# endif	266	# endif
260	#endif	267	#endif
…		…
347		354
348	#ifndef EV_HEAP_CACHE_AT	355	#ifndef EV_HEAP_CACHE_AT
349	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	356	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350	#endif	357	#endif
351		358
		359	#ifdef ANDROID
		360	/* supposedly, android doesn't typedef fd_mask */
		361	# undef EV_USE_SELECT
		362	# define EV_USE_SELECT 0
		363	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		364	# undef EV_USE_CLOCK_SYSCALL
		365	# define EV_USE_CLOCK_SYSCALL 0
		366	#endif
		367
		368	/* aix's poll.h seems to cause lots of trouble */
		369	#ifdef _AIX
		370	/* AIX has a completely broken poll.h header */
		371	# undef EV_USE_POLL
		372	# define EV_USE_POLL 0
		373	#endif
		374
352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	375	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353	/* which makes programs even slower. might work on other unices, too. */	376	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	377	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	378	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	379	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	380	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	381	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	382	# define EV_USE_MONOTONIC 1
360	# else	383	# else
…		…
363	# endif	386	# endif
364	#endif	387	#endif
365		388
366	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	389	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367		390
368	#ifdef _AIX
369	/* AIX has a completely broken poll.h header */
370	# undef EV_USE_POLL
371	# define EV_USE_POLL 0
372	#endif
373
374	#ifndef CLOCK_MONOTONIC	391	#ifndef CLOCK_MONOTONIC
375	# undef EV_USE_MONOTONIC	392	# undef EV_USE_MONOTONIC
376	# define EV_USE_MONOTONIC 0	393	# define EV_USE_MONOTONIC 0
377	#endif	394	#endif
378		395
…		…
386	# define EV_USE_INOTIFY 0	403	# define EV_USE_INOTIFY 0
387	#endif	404	#endif
388		405
389	#if !EV_USE_NANOSLEEP	406	#if !EV_USE_NANOSLEEP
390	/* hp-ux has it in sys/time.h, which we unconditionally include above */	407	/* hp-ux has it in sys/time.h, which we unconditionally include above */
391	# if !defined(_WIN32) && !defined(__hpux)	408	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	409	# include <sys/select.h>
393	# endif	410	# endif
394	#endif	411	#endif
395		412
396	#if EV_USE_INOTIFY	413	#if EV_USE_INOTIFY
…		…
399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	416	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400	# ifndef IN_DONT_FOLLOW	417	# ifndef IN_DONT_FOLLOW
401	# undef EV_USE_INOTIFY	418	# undef EV_USE_INOTIFY
402	# define EV_USE_INOTIFY 0	419	# define EV_USE_INOTIFY 0
403	# endif	420	# endif
404	#endif
405
406	#if EV_SELECT_IS_WINSOCKET
407	# include <winsock.h>
408	#endif	421	#endif
409		422
410	#if EV_USE_EVENTFD	423	#if EV_USE_EVENTFD
411	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	424	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412	# include <stdint.h>	425	# include <stdint.h>
…		…
469	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	482	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470	/* ECB.H BEGIN */	483	/* ECB.H BEGIN */
471	/*	484	/*
472	* libecb - http://software.schmorp.de/pkg/libecb	485	* libecb - http://software.schmorp.de/pkg/libecb
473	*	486	*
474	* Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>	487	* Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de>
475	* Copyright (©) 2011 Emanuele Giaquinta	488	* Copyright (©) 2011 Emanuele Giaquinta
476	* All rights reserved.	489	* All rights reserved.
477	*	490	*
478	* Redistribution and use in source and binary forms, with or without modifica-	491	* Redistribution and use in source and binary forms, with or without modifica-
479	* tion, are permitted provided that the following conditions are met:	492	* tion, are permitted provided that the following conditions are met:
…		…
498	*/	511	*/
499		512
500	#ifndef ECB_H	513	#ifndef ECB_H
501	#define ECB_H	514	#define ECB_H
502		515
		516	/* 16 bits major, 16 bits minor */
		517	#define ECB_VERSION 0x00010003
		518
503	#ifdef _WIN32	519	#ifdef _WIN32
504	typedef signed char int8_t;	520	typedef signed char int8_t;
505	typedef unsigned char uint8_t;	521	typedef unsigned char uint8_t;
506	typedef signed short int16_t;	522	typedef signed short int16_t;
507	typedef unsigned short uint16_t;	523	typedef unsigned short uint16_t;
…		…
512	typedef unsigned long long uint64_t;	528	typedef unsigned long long uint64_t;
513	#else /* _MSC_VER || __BORLANDC__ */	529	#else /* _MSC_VER || __BORLANDC__ */
514	typedef signed __int64 int64_t;	530	typedef signed __int64 int64_t;
515	typedef unsigned __int64 uint64_t;	531	typedef unsigned __int64 uint64_t;
516	#endif	532	#endif
		533	#ifdef _WIN64
		534	#define ECB_PTRSIZE 8
		535	typedef uint64_t uintptr_t;
		536	typedef int64_t intptr_t;
		537	#else
		538	#define ECB_PTRSIZE 4
		539	typedef uint32_t uintptr_t;
		540	typedef int32_t intptr_t;
		541	#endif
517	#else	542	#else
518	#include <inttypes.h>	543	#include <inttypes.h>
		544	#if UINTMAX_MAX > 0xffffffffU
		545	#define ECB_PTRSIZE 8
		546	#else
		547	#define ECB_PTRSIZE 4
		548	#endif
		549	#endif
		550
		551	/* work around x32 idiocy by defining proper macros */
		552	#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
		553	#if _ILP32
		554	#define ECB_AMD64_X32 1
		555	#else
		556	#define ECB_AMD64 1
		557	#endif
519	#endif	558	#endif
520		559
521	/* many compilers define _GNUC_ to some versions but then only implement	560	/* many compilers define _GNUC_ to some versions but then only implement
522	* what their idiot authors think are the "more important" extensions,	561	* what their idiot authors think are the "more important" extensions,
523	* causing enormous grief in return for some better fake benchmark numbers.	562	* causing enormous grief in return for some better fake benchmark numbers.
524	* or so.	563	* or so.
525	* we try to detect these and simply assume they are not gcc - if they have	564	* we try to detect these and simply assume they are not gcc - if they have
526	* an issue with that they should have done it right in the first place.	565	* an issue with that they should have done it right in the first place.
527	*/	566	*/
528	#ifndef ECB_GCC_VERSION	567	#ifndef ECB_GCC_VERSION
529	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	568	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530	#define ECB_GCC_VERSION(major,minor) 0	569	#define ECB_GCC_VERSION(major,minor) 0
531	#else	570	#else
532	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	571	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533	#endif	572	#endif
534	#endif	573	#endif
535		574
		575	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		576	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		577	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		578	#define ECB_CPP (__cplusplus+0)
		579	#define ECB_CPP11 (__cplusplus >= 201103L)
		580
		581	#if ECB_CPP
		582	#define ECB_EXTERN_C extern "C"
		583	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		584	#define ECB_EXTERN_C_END }
		585	#else
		586	#define ECB_EXTERN_C extern
		587	#define ECB_EXTERN_C_BEG
		588	#define ECB_EXTERN_C_END
		589	#endif
		590
536	/*****************************************************************************/	591	/*****************************************************************************/
537		592
538	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	593	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */	594	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540		595
541	#if ECB_NO_THREADS || ECB_NO_SMP	596	#if ECB_NO_THREADS
		597	#define ECB_NO_SMP 1
		598	#endif
		599
		600	#if ECB_NO_SMP
542	#define ECB_MEMORY_FENCE do { } while (0)	601	#define ECB_MEMORY_FENCE do { } while (0)
543	#endif	602	#endif
544		603
545	#ifndef ECB_MEMORY_FENCE	604	#ifndef ECB_MEMORY_FENCE
546	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__)	605	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547	#if __i386__	606	#if __i386 || __i386__
548	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */	608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551	#elif __amd64	610	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	612	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
554	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */	613	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	614	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	616	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	617	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \	619	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	620	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		622	#elif (__sparc || __sparc__) && !__sparcv8
		623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		624	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		625	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		626	#elif defined __s390__ || defined __s390x__
		627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		628	#elif defined __mips__
		629	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		630	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		631	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		632	#elif defined __alpha__
		633	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		634	#elif defined __hppa__
		635	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		636	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		637	#elif defined __ia64__
		638	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		639	#elif defined __m68k__
		640	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		641	#elif defined __m88k__
		642	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		643	#elif defined __sh__
		644	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
563	#endif	645	#endif
564	#endif	646	#endif
565	#endif	647	#endif
566		648
567	#ifndef ECB_MEMORY_FENCE	649	#ifndef ECB_MEMORY_FENCE
		650	#if ECB_GCC_VERSION(4,7)
		651	/* see comment below (stdatomic.h) about the C11 memory model. */
		652	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		653
		654	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		655	* without risking compile time errors with other compilers. We *could*
		656	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		657	* around this shit time and again.
		658	* #elif defined __clang && __has_feature (cxx_atomic)
		659	* // see comment below (stdatomic.h) about the C11 memory model.
		660	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		661	*/
		662
568	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	663	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569	#define ECB_MEMORY_FENCE __sync_synchronize ()	664	#define ECB_MEMORY_FENCE __sync_synchronize ()
570	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */	665	#elif _MSC_VER >= 1500 /* VC++ 2008 */
571	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */	666	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		667	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		668	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		669	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		670	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
572	#elif _MSC_VER >= 1400 /* VC++ 2005 */	671	#elif _MSC_VER >= 1400 /* VC++ 2005 */
573	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	672	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	673	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	674	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	675	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577	#elif defined(_WIN32)	676	#elif defined _WIN32
578	#include <WinNT.h>	677	#include <WinNT.h>
579	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	678	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		679	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		680	#include <mbarrier.h>
		681	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		682	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		683	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		684	#elif __xlC__
		685	#define ECB_MEMORY_FENCE __sync ()
		686	#endif
		687	#endif
		688
		689	#ifndef ECB_MEMORY_FENCE
		690	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		691	/* we assume that these memory fences work on all variables/all memory accesses, */
		692	/* not just C11 atomics and atomic accesses */
		693	#include <stdatomic.h>
		694	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		695	/* any fence other than seq_cst, which isn't very efficient for us. */
		696	/* Why that is, we don't know - either the C11 memory model is quite useless */
		697	/* for most usages, or gcc and clang have a bug */
		698	/* I *currently* lean towards the latter, and inefficiently implement */
		699	/* all three of ecb's fences as a seq_cst fence */
		700	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580	#endif	701	#endif
581	#endif	702	#endif
582		703
583	#ifndef ECB_MEMORY_FENCE	704	#ifndef ECB_MEMORY_FENCE
584	#if !ECB_AVOID_PTHREADS	705	#if !ECB_AVOID_PTHREADS
…		…
596	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	717	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)	718	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598	#endif	719	#endif
599	#endif	720	#endif
600		721
601	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	722	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	723	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603	#endif	724	#endif
604		725
605	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	726	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	727	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607	#endif	728	#endif
608		729
609	/*****************************************************************************/	730	/*****************************************************************************/
610
611	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612		731
613	#if __cplusplus	732	#if __cplusplus
614	#define ecb_inline static inline	733	#define ecb_inline static inline
615	#elif ECB_GCC_VERSION(2,5)	734	#elif ECB_GCC_VERSION(2,5)
616	#define ecb_inline static __inline__	735	#define ecb_inline static __inline__
…		…
655	#elif ECB_GCC_VERSION(3,0)	774	#elif ECB_GCC_VERSION(3,0)
656	#define ecb_decltype(x) __typeof(x)	775	#define ecb_decltype(x) __typeof(x)
657	#endif	776	#endif
658		777
659	#define ecb_noinline ecb_attribute ((__noinline__))	778	#define ecb_noinline ecb_attribute ((__noinline__))
660	#define ecb_noreturn ecb_attribute ((__noreturn__))
661	#define ecb_unused ecb_attribute ((__unused__))	779	#define ecb_unused ecb_attribute ((__unused__))
662	#define ecb_const ecb_attribute ((__const__))	780	#define ecb_const ecb_attribute ((__const__))
663	#define ecb_pure ecb_attribute ((__pure__))	781	#define ecb_pure ecb_attribute ((__pure__))
		782
		783	#if ECB_C11
		784	#define ecb_noreturn _Noreturn
		785	#else
		786	#define ecb_noreturn ecb_attribute ((__noreturn__))
		787	#endif
664		788
665	#if ECB_GCC_VERSION(4,3)	789	#if ECB_GCC_VERSION(4,3)
666	#define ecb_artificial ecb_attribute ((__artificial__))	790	#define ecb_artificial ecb_attribute ((__artificial__))
667	#define ecb_hot ecb_attribute ((__hot__))	791	#define ecb_hot ecb_attribute ((__hot__))
668	#define ecb_cold ecb_attribute ((__cold__))	792	#define ecb_cold ecb_attribute ((__cold__))
…		…
759		883
760	return r + ecb_ld32 (x);	884	return r + ecb_ld32 (x);
761	}	885	}
762	#endif	886	#endif
763		887
		888	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		889	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		890	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		891	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		892
		893	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		894	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		895	{
		896	return ( (x * 0x0802U & 0x22110U)
		897	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		898	}
		899
		900	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		901	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		902	{
		903	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		904	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		905	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		906	x = ( x >> 8 ) | ( x << 8);
		907
		908	return x;
		909	}
		910
		911	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		912	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		913	{
		914	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		915	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		916	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		917	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		918	x = ( x >> 16 ) | ( x << 16);
		919
		920	return x;
		921	}
		922
764	/* popcount64 is only available on 64 bit cpus as gcc builtin */	923	/* popcount64 is only available on 64 bit cpus as gcc builtin */
765	/* so for this version we are lazy */	924	/* so for this version we are lazy */
766	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	925	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767	ecb_function_ int	926	ecb_function_ int
768	ecb_popcount64 (uint64_t x)	927	ecb_popcount64 (uint64_t x)
…		…
817		976
818	#if ECB_GCC_VERSION(4,5)	977	#if ECB_GCC_VERSION(4,5)
819	#define ecb_unreachable() __builtin_unreachable ()	978	#define ecb_unreachable() __builtin_unreachable ()
820	#else	979	#else
821	/* this seems to work fine, but gcc always emits a warning for it :/ */	980	/* this seems to work fine, but gcc always emits a warning for it :/ */
822	ecb_function_ void ecb_unreachable (void) ecb_noreturn;	981	ecb_inline void ecb_unreachable (void) ecb_noreturn;
823	ecb_function_ void ecb_unreachable (void) { }	982	ecb_inline void ecb_unreachable (void) { }
824	#endif	983	#endif
825		984
826	/* try to tell the compiler that some condition is definitely true */	985	/* try to tell the compiler that some condition is definitely true */
827	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	986	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828		987
829	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;	988	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830	ecb_function_ unsigned char	989	ecb_inline unsigned char
831	ecb_byteorder_helper (void)	990	ecb_byteorder_helper (void)
832	{	991	{
833	const uint32_t u = 0x11223344;	992	/* the union code still generates code under pressure in gcc, */
834	return *(unsigned char *)&u;	993	/* but less than using pointers, and always seems to */
		994	/* successfully return a constant. */
		995	/* the reason why we have this horrible preprocessor mess */
		996	/* is to avoid it in all cases, at least on common architectures */
		997	/* or when using a recent enough gcc version (>= 4.6) */
		998	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		999	return 0x44;
		1000	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		1001	return 0x44;
		1002	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		1003	return 0x11;
		1004	#else
		1005	union
		1006	{
		1007	uint32_t i;
		1008	uint8_t c;
		1009	} u = { 0x11223344 };
		1010	return u.c;
		1011	#endif
835	}	1012	}
836		1013
837	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;	1014	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1015	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;	1016	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1017	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841		1018
842	#if ECB_GCC_VERSION(3,0) || ECB_C99	1019	#if ECB_GCC_VERSION(3,0) || ECB_C99
843	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1020	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844	#else	1021	#else
845	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1022	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
…		…
870	}	1047	}
871	#else	1048	#else
872	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1049	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
873	#endif	1050	#endif
874		1051
		1052	/*******************************************************************************/
		1053	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1054
		1055	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1056	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1057	#if 0 \
		1058	|| __i386 || __i386__ \
		1059	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1060	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1061	|| defined __arm__ && defined __ARM_EABI__ \
		1062	|| defined __s390__ || defined __s390x__ \
		1063	|| defined __mips__ \
		1064	|| defined __alpha__ \
		1065	|| defined __hppa__ \
		1066	|| defined __ia64__ \
		1067	|| defined __m68k__ \
		1068	|| defined __m88k__ \
		1069	|| defined __sh__ \
		1070	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1071	#define ECB_STDFP 1
		1072	#include <string.h> /* for memcpy */
		1073	#else
		1074	#define ECB_STDFP 0
		1075	#endif
		1076
		1077	#ifndef ECB_NO_LIBM
		1078
		1079	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1080
		1081	/* only the oldest of old doesn't have this one. solaris. */
		1082	#ifdef INFINITY
		1083	#define ECB_INFINITY INFINITY
		1084	#else
		1085	#define ECB_INFINITY HUGE_VAL
		1086	#endif
		1087
		1088	#ifdef NAN
		1089	#define ECB_NAN NAN
		1090	#else
		1091	#define ECB_NAN ECB_INFINITY
		1092	#endif
		1093
		1094	/* converts an ieee half/binary16 to a float */
		1095	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
		1096	ecb_function_ float
		1097	ecb_binary16_to_float (uint16_t x)
		1098	{
		1099	int e = (x >> 10) & 0x1f;
		1100	int m = x & 0x3ff;
		1101	float r;
		1102
		1103	if (!e ) r = ldexpf (m , -24);
		1104	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
		1105	else if (m ) r = ECB_NAN;
		1106	else r = ECB_INFINITY;
		1107
		1108	return x & 0x8000 ? -r : r;
		1109	}
		1110
		1111	/* convert a float to ieee single/binary32 */
		1112	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1113	ecb_function_ uint32_t
		1114	ecb_float_to_binary32 (float x)
		1115	{
		1116	uint32_t r;
		1117
		1118	#if ECB_STDFP
		1119	memcpy (&r, &x, 4);
		1120	#else
		1121	/* slow emulation, works for anything but -0 */
		1122	uint32_t m;
		1123	int e;
		1124
		1125	if (x == 0e0f ) return 0x00000000U;
		1126	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1127	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1128	if (x != x ) return 0x7fbfffffU;
		1129
		1130	m = frexpf (x, &e) * 0x1000000U;
		1131
		1132	r = m & 0x80000000U;
		1133
		1134	if (r)
		1135	m = -m;
		1136
		1137	if (e <= -126)
		1138	{
		1139	m &= 0xffffffU;
		1140	m >>= (-125 - e);
		1141	e = -126;
		1142	}
		1143
		1144	r |= (e + 126) << 23;
		1145	r |= m & 0x7fffffU;
		1146	#endif
		1147
		1148	return r;
		1149	}
		1150
		1151	/* converts an ieee single/binary32 to a float */
		1152	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1153	ecb_function_ float
		1154	ecb_binary32_to_float (uint32_t x)
		1155	{
		1156	float r;
		1157
		1158	#if ECB_STDFP
		1159	memcpy (&r, &x, 4);
		1160	#else
		1161	/* emulation, only works for normals and subnormals and +0 */
		1162	int neg = x >> 31;
		1163	int e = (x >> 23) & 0xffU;
		1164
		1165	x &= 0x7fffffU;
		1166
		1167	if (e)
		1168	x |= 0x800000U;
		1169	else
		1170	e = 1;
		1171
		1172	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1173	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1174
		1175	r = neg ? -r : r;
		1176	#endif
		1177
		1178	return r;
		1179	}
		1180
		1181	/* convert a double to ieee double/binary64 */
		1182	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1183	ecb_function_ uint64_t
		1184	ecb_double_to_binary64 (double x)
		1185	{
		1186	uint64_t r;
		1187
		1188	#if ECB_STDFP
		1189	memcpy (&r, &x, 8);
		1190	#else
		1191	/* slow emulation, works for anything but -0 */
		1192	uint64_t m;
		1193	int e;
		1194
		1195	if (x == 0e0 ) return 0x0000000000000000U;
		1196	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1197	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1198	if (x != x ) return 0X7ff7ffffffffffffU;
		1199
		1200	m = frexp (x, &e) * 0x20000000000000U;
		1201
		1202	r = m & 0x8000000000000000;;
		1203
		1204	if (r)
		1205	m = -m;
		1206
		1207	if (e <= -1022)
		1208	{
		1209	m &= 0x1fffffffffffffU;
		1210	m >>= (-1021 - e);
		1211	e = -1022;
		1212	}
		1213
		1214	r |= ((uint64_t)(e + 1022)) << 52;
		1215	r |= m & 0xfffffffffffffU;
		1216	#endif
		1217
		1218	return r;
		1219	}
		1220
		1221	/* converts an ieee double/binary64 to a double */
		1222	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1223	ecb_function_ double
		1224	ecb_binary64_to_double (uint64_t x)
		1225	{
		1226	double r;
		1227
		1228	#if ECB_STDFP
		1229	memcpy (&r, &x, 8);
		1230	#else
		1231	/* emulation, only works for normals and subnormals and +0 */
		1232	int neg = x >> 63;
		1233	int e = (x >> 52) & 0x7ffU;
		1234
		1235	x &= 0xfffffffffffffU;
		1236
		1237	if (e)
		1238	x |= 0x10000000000000U;
		1239	else
		1240	e = 1;
		1241
		1242	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1243	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1244
		1245	r = neg ? -r : r;
		1246	#endif
		1247
		1248	return r;
		1249	}
		1250
		1251	#endif
		1252
875	#endif	1253	#endif
876		1254
877	/* ECB.H END */	1255	/* ECB.H END */
878		1256
879	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1257	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
880	/* if your architecture doesn't need memory fences, e.g. because it is	1258	/* if your architecture doesn't need memory fences, e.g. because it is
881	* single-cpu/core, or if you use libev in a project that doesn't use libev	1259	* single-cpu/core, or if you use libev in a project that doesn't use libev
882	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling	1260	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
883	* libev, in which casess the memory fences become nops.	1261	* libev, in which cases the memory fences become nops.
884	* alternatively, you can remove this #error and link against libpthread,	1262	* alternatively, you can remove this #error and link against libpthread,
885	* which will then provide the memory fences.	1263	* which will then provide the memory fences.
886	*/	1264	*/
887	# error "memory fences not defined for your architecture, please report"	1265	# error "memory fences not defined for your architecture, please report"
888	#endif	1266	#endif
…		…
1045	{	1423	{
1046	write (STDERR_FILENO, msg, strlen (msg));	1424	write (STDERR_FILENO, msg, strlen (msg));
1047	}	1425	}
1048	#endif	1426	#endif
1049		1427
1050	static void (*syserr_cb)(const char *msg);	1428	static void (*syserr_cb)(const char *msg) EV_THROW;
1051		1429
1052	void ecb_cold	1430	void ecb_cold
1053	ev_set_syserr_cb (void (*cb)(const char *msg))	1431	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1054	{	1432	{
1055	syserr_cb = cb;	1433	syserr_cb = cb;
1056	}	1434	}
1057		1435
1058	static void noinline ecb_cold	1436	static void noinline ecb_cold
…		…
1076	abort ();	1454	abort ();
1077	}	1455	}
1078	}	1456	}
1079		1457
1080	static void *	1458	static void *
1081	ev_realloc_emul (void *ptr, long size)	1459	ev_realloc_emul (void *ptr, long size) EV_THROW
1082	{	1460	{
1083	#if __GLIBC__
1084	return realloc (ptr, size);
1085	#else
1086	/* some systems, notably openbsd and darwin, fail to properly	1461	/* some systems, notably openbsd and darwin, fail to properly
1087	* implement realloc (x, 0) (as required by both ansi c-89 and	1462	* implement realloc (x, 0) (as required by both ansi c-89 and
1088	* the single unix specification, so work around them here.	1463	* the single unix specification, so work around them here.
		1464	* recently, also (at least) fedora and debian started breaking it,
		1465	* despite documenting it otherwise.
1089	*/	1466	*/
1090		1467
1091	if (size)	1468	if (size)
1092	return realloc (ptr, size);	1469	return realloc (ptr, size);
1093		1470
1094	free (ptr);	1471	free (ptr);
1095	return 0;	1472	return 0;
1096	#endif
1097	}	1473	}
1098		1474
1099	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1475	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1100		1476
1101	void ecb_cold	1477	void ecb_cold
1102	ev_set_allocator (void *(*cb)(void *ptr, long size))	1478	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1103	{	1479	{
1104	alloc = cb;	1480	alloc = cb;
1105	}	1481	}
1106		1482
1107	inline_speed void *	1483	inline_speed void *
…		…
1195	#undef VAR	1571	#undef VAR
1196	};	1572	};
1197	#include "ev_wrap.h"	1573	#include "ev_wrap.h"
1198		1574
1199	static struct ev_loop default_loop_struct;	1575	static struct ev_loop default_loop_struct;
1200	struct ev_loop *ev_default_loop_ptr;	1576	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1201		1577
1202	#else	1578	#else
1203		1579
1204	ev_tstamp ev_rt_now;	1580	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1205	#define VAR(name,decl) static decl;	1581	#define VAR(name,decl) static decl;
1206	#include "ev_vars.h"	1582	#include "ev_vars.h"
1207	#undef VAR	1583	#undef VAR
1208		1584
1209	static int ev_default_loop_ptr;	1585	static int ev_default_loop_ptr;
…		…
1224		1600
1225	/*****************************************************************************/	1601	/*****************************************************************************/
1226		1602
1227	#ifndef EV_HAVE_EV_TIME	1603	#ifndef EV_HAVE_EV_TIME
1228	ev_tstamp	1604	ev_tstamp
1229	ev_time (void)	1605	ev_time (void) EV_THROW
1230	{	1606	{
1231	#if EV_USE_REALTIME	1607	#if EV_USE_REALTIME
1232	if (expect_true (have_realtime))	1608	if (expect_true (have_realtime))
1233	{	1609	{
1234	struct timespec ts;	1610	struct timespec ts;
…		…
1258	return ev_time ();	1634	return ev_time ();
1259	}	1635	}
1260		1636
1261	#if EV_MULTIPLICITY	1637	#if EV_MULTIPLICITY
1262	ev_tstamp	1638	ev_tstamp
1263	ev_now (EV_P)	1639	ev_now (EV_P) EV_THROW
1264	{	1640	{
1265	return ev_rt_now;	1641	return ev_rt_now;
1266	}	1642	}
1267	#endif	1643	#endif
1268		1644
1269	void	1645	void
1270	ev_sleep (ev_tstamp delay)	1646	ev_sleep (ev_tstamp delay) EV_THROW
1271	{	1647	{
1272	if (delay > 0.)	1648	if (delay > 0.)
1273	{	1649	{
1274	#if EV_USE_NANOSLEEP	1650	#if EV_USE_NANOSLEEP
1275	struct timespec ts;	1651	struct timespec ts;
1276		1652
1277	EV_TS_SET (ts, delay);	1653	EV_TS_SET (ts, delay);
1278	nanosleep (&ts, 0);	1654	nanosleep (&ts, 0);
1279	#elif defined(_WIN32)	1655	#elif defined _WIN32
1280	Sleep ((unsigned long)(delay * 1e3));	1656	Sleep ((unsigned long)(delay * 1e3));
1281	#else	1657	#else
1282	struct timeval tv;	1658	struct timeval tv;
1283		1659
1284	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1660	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1303		1679
1304	do	1680	do
1305	ncur <<= 1;	1681	ncur <<= 1;
1306	while (cnt > ncur);	1682	while (cnt > ncur);
1307		1683
1308	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1684	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1309	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1685	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1310	{	1686	{
1311	ncur *= elem;	1687	ncur *= elem;
1312	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1688	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1313	ncur = ncur - sizeof (void *) * 4;	1689	ncur = ncur - sizeof (void *) * 4;
…		…
1356	pendingcb (EV_P_ ev_prepare *w, int revents)	1732	pendingcb (EV_P_ ev_prepare *w, int revents)
1357	{	1733	{
1358	}	1734	}
1359		1735
1360	void noinline	1736	void noinline
1361	ev_feed_event (EV_P_ void *w, int revents)	1737	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1362	{	1738	{
1363	W w_ = (W)w;	1739	W w_ = (W)w;
1364	int pri = ABSPRI (w_);	1740	int pri = ABSPRI (w_);
1365		1741
1366	if (expect_false (w_->pending))	1742	if (expect_false (w_->pending))
…		…
1370	w_->pending = ++pendingcnt [pri];	1746	w_->pending = ++pendingcnt [pri];
1371	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1747	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1372	pendings [pri][w_->pending - 1].w = w_;	1748	pendings [pri][w_->pending - 1].w = w_;
1373	pendings [pri][w_->pending - 1].events = revents;	1749	pendings [pri][w_->pending - 1].events = revents;
1374	}	1750	}
		1751
		1752	pendingpri = NUMPRI - 1;
1375	}	1753	}
1376		1754
1377	inline_speed void	1755	inline_speed void
1378	feed_reverse (EV_P_ W w)	1756	feed_reverse (EV_P_ W w)
1379	{	1757	{
…		…
1425	if (expect_true (!anfd->reify))	1803	if (expect_true (!anfd->reify))
1426	fd_event_nocheck (EV_A_ fd, revents);	1804	fd_event_nocheck (EV_A_ fd, revents);
1427	}	1805	}
1428		1806
1429	void	1807	void
1430	ev_feed_fd_event (EV_P_ int fd, int revents)	1808	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1431	{	1809	{
1432	if (fd >= 0 && fd < anfdmax)	1810	if (fd >= 0 && fd < anfdmax)
1433	fd_event_nocheck (EV_A_ fd, revents);	1811	fd_event_nocheck (EV_A_ fd, revents);
1434	}	1812	}
1435		1813
…		…
1754	static void noinline ecb_cold	2132	static void noinline ecb_cold
1755	evpipe_init (EV_P)	2133	evpipe_init (EV_P)
1756	{	2134	{
1757	if (!ev_is_active (&pipe_w))	2135	if (!ev_is_active (&pipe_w))
1758	{	2136	{
		2137	int fds [2];
		2138
1759	# if EV_USE_EVENTFD	2139	# if EV_USE_EVENTFD
		2140	fds [0] = -1;
1760	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2141	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1761	if (evfd < 0 && errno == EINVAL)	2142	if (fds [1] < 0 && errno == EINVAL)
1762	evfd = eventfd (0, 0);	2143	fds [1] = eventfd (0, 0);
1763		2144
1764	if (evfd >= 0)	2145	if (fds [1] < 0)
		2146	# endif
1765	{	2147	{
		2148	while (pipe (fds))
		2149	ev_syserr ("(libev) error creating signal/async pipe");
		2150
		2151	fd_intern (fds [0]);
		2152	}
		2153
1766	evpipe [0] = -1;	2154	evpipe [0] = fds [0];
1767	fd_intern (evfd); /* doing it twice doesn't hurt */	2155
1768	ev_io_set (&pipe_w, evfd, EV_READ);	2156	if (evpipe [1] < 0)
		2157	evpipe [1] = fds [1]; /* first call, set write fd */
		2158	else
		2159	{
		2160	/* on subsequent calls, do not change evpipe [1] */
		2161	/* so that evpipe_write can always rely on its value. */
		2162	/* this branch does not do anything sensible on windows, */
		2163	/* so must not be executed on windows */
		2164
		2165	dup2 (fds [1], evpipe [1]);
		2166	close (fds [1]);
		2167	}
		2168
		2169	fd_intern (evpipe [1]);
		2170
		2171	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2172	ev_io_start (EV_A_ &pipe_w);
		2173	ev_unref (EV_A); /* watcher should not keep loop alive */
		2174	}
		2175	}
		2176
		2177	inline_speed void
		2178	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2179	{
		2180	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2181
		2182	if (expect_true (*flag))
		2183	return;
		2184
		2185	*flag = 1;
		2186	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2187
		2188	pipe_write_skipped = 1;
		2189
		2190	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2191
		2192	if (pipe_write_wanted)
		2193	{
		2194	int old_errno;
		2195
		2196	pipe_write_skipped = 0;
		2197	ECB_MEMORY_FENCE_RELEASE;
		2198
		2199	old_errno = errno; /* save errno because write will clobber it */
		2200
		2201	#if EV_USE_EVENTFD
		2202	if (evpipe [0] < 0)
		2203	{
		2204	uint64_t counter = 1;
		2205	write (evpipe [1], &counter, sizeof (uint64_t));
1769	}	2206	}
1770	else	2207	else
1771	# endif	2208	#endif
1772	{	2209	{
1773	while (pipe (evpipe))	2210	#ifdef _WIN32
1774	ev_syserr ("(libev) error creating signal/async pipe");	2211	WSABUF buf;
1775		2212	DWORD sent;
1776	fd_intern (evpipe [0]);	2213	buf.buf = &buf;
1777	fd_intern (evpipe [1]);	2214	buf.len = 1;
1778	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2215	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1779	}	2216	#else
1780
1781	ev_io_start (EV_A_ &pipe_w);
1782	ev_unref (EV_A); /* watcher should not keep loop alive */
1783	}
1784	}
1785
1786	inline_speed void
1787	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1788	{
1789	if (expect_true (*flag))
1790	return;
1791
1792	*flag = 1;
1793
1794	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1795
1796	pipe_write_skipped = 1;
1797
1798	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1799
1800	if (pipe_write_wanted)
1801	{
1802	int old_errno;
1803
1804	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1805
1806	old_errno = errno; /* save errno because write will clobber it */
1807
1808	#if EV_USE_EVENTFD
1809	if (evfd >= 0)
1810	{
1811	uint64_t counter = 1;
1812	write (evfd, &counter, sizeof (uint64_t));
1813	}
1814	else
1815	#endif
1816	{
1817	/* win32 people keep sending patches that change this write() to send() */
1818	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1819	/* so when you think this write should be a send instead, please find out */
1820	/* where your send() is from - it's definitely not the microsoft send, and */
1821	/* tell me. thank you. */
1822	write (evpipe [1], &(evpipe [1]), 1);	2217	write (evpipe [1], &(evpipe [1]), 1);
		2218	#endif
1823	}	2219	}
1824		2220
1825	errno = old_errno;	2221	errno = old_errno;
1826	}	2222	}
1827	}	2223	}
…		…
1834	int i;	2230	int i;
1835		2231
1836	if (revents & EV_READ)	2232	if (revents & EV_READ)
1837	{	2233	{
1838	#if EV_USE_EVENTFD	2234	#if EV_USE_EVENTFD
1839	if (evfd >= 0)	2235	if (evpipe [0] < 0)
1840	{	2236	{
1841	uint64_t counter;	2237	uint64_t counter;
1842	read (evfd, &counter, sizeof (uint64_t));	2238	read (evpipe [1], &counter, sizeof (uint64_t));
1843	}	2239	}
1844	else	2240	else
1845	#endif	2241	#endif
1846	{	2242	{
1847	char dummy;	2243	char dummy[4];
1848	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2244	#ifdef _WIN32
		2245	WSABUF buf;
		2246	DWORD recvd;
		2247	DWORD flags = 0;
		2248	buf.buf = dummy;
		2249	buf.len = sizeof (dummy);
		2250	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2251	#else
1849	read (evpipe [0], &dummy, 1);	2252	read (evpipe [0], &dummy, sizeof (dummy));
		2253	#endif
1850	}	2254	}
1851	}	2255	}
1852		2256
1853	pipe_write_skipped = 0;	2257	pipe_write_skipped = 0;
		2258
		2259	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1854		2260
1855	#if EV_SIGNAL_ENABLE	2261	#if EV_SIGNAL_ENABLE
1856	if (sig_pending)	2262	if (sig_pending)
1857	{	2263	{
1858	sig_pending = 0;	2264	sig_pending = 0;
		2265
		2266	ECB_MEMORY_FENCE;
1859		2267
1860	for (i = EV_NSIG - 1; i--; )	2268	for (i = EV_NSIG - 1; i--; )
1861	if (expect_false (signals [i].pending))	2269	if (expect_false (signals [i].pending))
1862	ev_feed_signal_event (EV_A_ i + 1);	2270	ev_feed_signal_event (EV_A_ i + 1);
1863	}	2271	}
…		…
1865		2273
1866	#if EV_ASYNC_ENABLE	2274	#if EV_ASYNC_ENABLE
1867	if (async_pending)	2275	if (async_pending)
1868	{	2276	{
1869	async_pending = 0;	2277	async_pending = 0;
		2278
		2279	ECB_MEMORY_FENCE;
1870		2280
1871	for (i = asynccnt; i--; )	2281	for (i = asynccnt; i--; )
1872	if (asyncs [i]->sent)	2282	if (asyncs [i]->sent)
1873	{	2283	{
1874	asyncs [i]->sent = 0;	2284	asyncs [i]->sent = 0;
		2285	ECB_MEMORY_FENCE_RELEASE;
1875	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2286	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1876	}	2287	}
1877	}	2288	}
1878	#endif	2289	#endif
1879	}	2290	}
1880		2291
1881	/*****************************************************************************/	2292	/*****************************************************************************/
1882		2293
1883	void	2294	void
1884	ev_feed_signal (int signum)	2295	ev_feed_signal (int signum) EV_THROW
1885	{	2296	{
1886	#if EV_MULTIPLICITY	2297	#if EV_MULTIPLICITY
		2298	EV_P;
		2299	ECB_MEMORY_FENCE_ACQUIRE;
1887	EV_P = signals [signum - 1].loop;	2300	EV_A = signals [signum - 1].loop;
1888		2301
1889	if (!EV_A)	2302	if (!EV_A)
1890	return;	2303	return;
1891	#endif	2304	#endif
1892		2305
1893	if (!ev_active (&pipe_w))
1894	return;
1895
1896	signals [signum - 1].pending = 1;	2306	signals [signum - 1].pending = 1;
1897	evpipe_write (EV_A_ &sig_pending);	2307	evpipe_write (EV_A_ &sig_pending);
1898	}	2308	}
1899		2309
1900	static void	2310	static void
…		…
1906		2316
1907	ev_feed_signal (signum);	2317	ev_feed_signal (signum);
1908	}	2318	}
1909		2319
1910	void noinline	2320	void noinline
1911	ev_feed_signal_event (EV_P_ int signum)	2321	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1912	{	2322	{
1913	WL w;	2323	WL w;
1914		2324
1915	if (expect_false (signum <= 0 || signum > EV_NSIG))	2325	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1916	return;	2326	return;
1917		2327
1918	--signum;	2328	--signum;
1919		2329
1920	#if EV_MULTIPLICITY	2330	#if EV_MULTIPLICITY
…		…
1924	if (expect_false (signals [signum].loop != EV_A))	2334	if (expect_false (signals [signum].loop != EV_A))
1925	return;	2335	return;
1926	#endif	2336	#endif
1927		2337
1928	signals [signum].pending = 0;	2338	signals [signum].pending = 0;
		2339	ECB_MEMORY_FENCE_RELEASE;
1929		2340
1930	for (w = signals [signum].head; w; w = w->next)	2341	for (w = signals [signum].head; w; w = w->next)
1931	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2342	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1932	}	2343	}
1933		2344
…		…
2032	#if EV_USE_SELECT	2443	#if EV_USE_SELECT
2033	# include "ev_select.c"	2444	# include "ev_select.c"
2034	#endif	2445	#endif
2035		2446
2036	int ecb_cold	2447	int ecb_cold
2037	ev_version_major (void)	2448	ev_version_major (void) EV_THROW
2038	{	2449	{
2039	return EV_VERSION_MAJOR;	2450	return EV_VERSION_MAJOR;
2040	}	2451	}
2041		2452
2042	int ecb_cold	2453	int ecb_cold
2043	ev_version_minor (void)	2454	ev_version_minor (void) EV_THROW
2044	{	2455	{
2045	return EV_VERSION_MINOR;	2456	return EV_VERSION_MINOR;
2046	}	2457	}
2047		2458
2048	/* return true if we are running with elevated privileges and should ignore env variables */	2459	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2056	|| getgid () != getegid ();	2467	|| getgid () != getegid ();
2057	#endif	2468	#endif
2058	}	2469	}
2059		2470
2060	unsigned int ecb_cold	2471	unsigned int ecb_cold
2061	ev_supported_backends (void)	2472	ev_supported_backends (void) EV_THROW
2062	{	2473	{
2063	unsigned int flags = 0;	2474	unsigned int flags = 0;
2064		2475
2065	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2476	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2066	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2477	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2070		2481
2071	return flags;	2482	return flags;
2072	}	2483	}
2073		2484
2074	unsigned int ecb_cold	2485	unsigned int ecb_cold
2075	ev_recommended_backends (void)	2486	ev_recommended_backends (void) EV_THROW
2076	{	2487	{
2077	unsigned int flags = ev_supported_backends ();	2488	unsigned int flags = ev_supported_backends ();
2078		2489
2079	#ifndef __NetBSD__	2490	#ifndef __NetBSD__
2080	/* kqueue is borked on everything but netbsd apparently */	2491	/* kqueue is borked on everything but netbsd apparently */
…		…
2092		2503
2093	return flags;	2504	return flags;
2094	}	2505	}
2095		2506
2096	unsigned int ecb_cold	2507	unsigned int ecb_cold
2097	ev_embeddable_backends (void)	2508	ev_embeddable_backends (void) EV_THROW
2098	{	2509	{
2099	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2510	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2100		2511
2101	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2512	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2102	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2513	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2104		2515
2105	return flags;	2516	return flags;
2106	}	2517	}
2107		2518
2108	unsigned int	2519	unsigned int
2109	ev_backend (EV_P)	2520	ev_backend (EV_P) EV_THROW
2110	{	2521	{
2111	return backend;	2522	return backend;
2112	}	2523	}
2113		2524
2114	#if EV_FEATURE_API	2525	#if EV_FEATURE_API
2115	unsigned int	2526	unsigned int
2116	ev_iteration (EV_P)	2527	ev_iteration (EV_P) EV_THROW
2117	{	2528	{
2118	return loop_count;	2529	return loop_count;
2119	}	2530	}
2120		2531
2121	unsigned int	2532	unsigned int
2122	ev_depth (EV_P)	2533	ev_depth (EV_P) EV_THROW
2123	{	2534	{
2124	return loop_depth;	2535	return loop_depth;
2125	}	2536	}
2126		2537
2127	void	2538	void
2128	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2539	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2129	{	2540	{
2130	io_blocktime = interval;	2541	io_blocktime = interval;
2131	}	2542	}
2132		2543
2133	void	2544	void
2134	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2545	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2135	{	2546	{
2136	timeout_blocktime = interval;	2547	timeout_blocktime = interval;
2137	}	2548	}
2138		2549
2139	void	2550	void
2140	ev_set_userdata (EV_P_ void *data)	2551	ev_set_userdata (EV_P_ void *data) EV_THROW
2141	{	2552	{
2142	userdata = data;	2553	userdata = data;
2143	}	2554	}
2144		2555
2145	void *	2556	void *
2146	ev_userdata (EV_P)	2557	ev_userdata (EV_P) EV_THROW
2147	{	2558	{
2148	return userdata;	2559	return userdata;
2149	}	2560	}
2150		2561
2151	void	2562	void
2152	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2563	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2153	{	2564	{
2154	invoke_cb = invoke_pending_cb;	2565	invoke_cb = invoke_pending_cb;
2155	}	2566	}
2156		2567
2157	void	2568	void
2158	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2569	ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2159	{	2570	{
2160	release_cb = release;	2571	release_cb = release;
2161	acquire_cb = acquire;	2572	acquire_cb = acquire;
2162	}	2573	}
2163	#endif	2574	#endif
2164		2575
2165	/* initialise a loop structure, must be zero-initialised */	2576	/* initialise a loop structure, must be zero-initialised */
2166	static void noinline ecb_cold	2577	static void noinline ecb_cold
2167	loop_init (EV_P_ unsigned int flags)	2578	loop_init (EV_P_ unsigned int flags) EV_THROW
2168	{	2579	{
2169	if (!backend)	2580	if (!backend)
2170	{	2581	{
2171	origflags = flags;	2582	origflags = flags;
2172		2583
…		…
2217	#if EV_ASYNC_ENABLE	2628	#if EV_ASYNC_ENABLE
2218	async_pending = 0;	2629	async_pending = 0;
2219	#endif	2630	#endif
2220	pipe_write_skipped = 0;	2631	pipe_write_skipped = 0;
2221	pipe_write_wanted = 0;	2632	pipe_write_wanted = 0;
		2633	evpipe [0] = -1;
		2634	evpipe [1] = -1;
2222	#if EV_USE_INOTIFY	2635	#if EV_USE_INOTIFY
2223	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2636	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2224	#endif	2637	#endif
2225	#if EV_USE_SIGNALFD	2638	#if EV_USE_SIGNALFD
2226	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2639	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2277	EV_INVOKE_PENDING;	2690	EV_INVOKE_PENDING;
2278	}	2691	}
2279	#endif	2692	#endif
2280		2693
2281	#if EV_CHILD_ENABLE	2694	#if EV_CHILD_ENABLE
2282	if (ev_is_active (&childev))	2695	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2283	{	2696	{
2284	ev_ref (EV_A); /* child watcher */	2697	ev_ref (EV_A); /* child watcher */
2285	ev_signal_stop (EV_A_ &childev);	2698	ev_signal_stop (EV_A_ &childev);
2286	}	2699	}
2287	#endif	2700	#endif
…		…
2289	if (ev_is_active (&pipe_w))	2702	if (ev_is_active (&pipe_w))
2290	{	2703	{
2291	/*ev_ref (EV_A);*/	2704	/*ev_ref (EV_A);*/
2292	/*ev_io_stop (EV_A_ &pipe_w);*/	2705	/*ev_io_stop (EV_A_ &pipe_w);*/
2293		2706
2294	#if EV_USE_EVENTFD
2295	if (evfd >= 0)
2296	close (evfd);
2297	#endif
2298
2299	if (evpipe [0] >= 0)
2300	{
2301	EV_WIN32_CLOSE_FD (evpipe [0]);	2707	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2302	EV_WIN32_CLOSE_FD (evpipe [1]);	2708	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2303	}
2304	}	2709	}
2305		2710
2306	#if EV_USE_SIGNALFD	2711	#if EV_USE_SIGNALFD
2307	if (ev_is_active (&sigfd_w))	2712	if (ev_is_active (&sigfd_w))
2308	close (sigfd);	2713	close (sigfd);
…		…
2394	#endif	2799	#endif
2395	#if EV_USE_INOTIFY	2800	#if EV_USE_INOTIFY
2396	infy_fork (EV_A);	2801	infy_fork (EV_A);
2397	#endif	2802	#endif
2398		2803
		2804	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2399	if (ev_is_active (&pipe_w))	2805	if (ev_is_active (&pipe_w))
2400	{	2806	{
2401	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2807	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2402		2808
2403	ev_ref (EV_A);	2809	ev_ref (EV_A);
2404	ev_io_stop (EV_A_ &pipe_w);	2810	ev_io_stop (EV_A_ &pipe_w);
2405		2811
2406	#if EV_USE_EVENTFD
2407	if (evfd >= 0)
2408	close (evfd);
2409	#endif
2410
2411	if (evpipe [0] >= 0)	2812	if (evpipe [0] >= 0)
2412	{
2413	EV_WIN32_CLOSE_FD (evpipe [0]);	2813	EV_WIN32_CLOSE_FD (evpipe [0]);
2414	EV_WIN32_CLOSE_FD (evpipe [1]);
2415	}
2416		2814
2417	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2418	evpipe_init (EV_A);	2815	evpipe_init (EV_A);
2419	/* now iterate over everything, in case we missed something */	2816	/* iterate over everything, in case we missed something before */
2420	pipecb (EV_A_ &pipe_w, EV_READ);	2817	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2421	#endif
2422	}	2818	}
		2819	#endif
2423		2820
2424	postfork = 0;	2821	postfork = 0;
2425	}	2822	}
2426		2823
2427	#if EV_MULTIPLICITY	2824	#if EV_MULTIPLICITY
2428		2825
2429	struct ev_loop * ecb_cold	2826	struct ev_loop * ecb_cold
2430	ev_loop_new (unsigned int flags)	2827	ev_loop_new (unsigned int flags) EV_THROW
2431	{	2828	{
2432	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2829	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2433		2830
2434	memset (EV_A, 0, sizeof (struct ev_loop));	2831	memset (EV_A, 0, sizeof (struct ev_loop));
2435	loop_init (EV_A_ flags);	2832	loop_init (EV_A_ flags);
…		…
2479	}	2876	}
2480	#endif	2877	#endif
2481		2878
2482	#if EV_FEATURE_API	2879	#if EV_FEATURE_API
2483	void ecb_cold	2880	void ecb_cold
2484	ev_verify (EV_P)	2881	ev_verify (EV_P) EV_THROW
2485	{	2882	{
2486	#if EV_VERIFY	2883	#if EV_VERIFY
2487	int i;	2884	int i;
2488	WL w;	2885	WL w, w2;
2489		2886
2490	assert (activecnt >= -1);	2887	assert (activecnt >= -1);
2491		2888
2492	assert (fdchangemax >= fdchangecnt);	2889	assert (fdchangemax >= fdchangecnt);
2493	for (i = 0; i < fdchangecnt; ++i)	2890	for (i = 0; i < fdchangecnt; ++i)
2494	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2891	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2495		2892
2496	assert (anfdmax >= 0);	2893	assert (anfdmax >= 0);
2497	for (i = 0; i < anfdmax; ++i)	2894	for (i = 0; i < anfdmax; ++i)
		2895	{
		2896	int j = 0;
		2897
2498	for (w = anfds [i].head; w; w = w->next)	2898	for (w = w2 = anfds [i].head; w; w = w->next)
2499	{	2899	{
2500	verify_watcher (EV_A_ (W)w);	2900	verify_watcher (EV_A_ (W)w);
		2901
		2902	if (j++ & 1)
		2903	{
		2904	assert (("libev: io watcher list contains a loop", w != w2));
		2905	w2 = w2->next;
		2906	}
		2907
2501	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2908	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2502	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2909	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2503	}	2910	}
		2911	}
2504		2912
2505	assert (timermax >= timercnt);	2913	assert (timermax >= timercnt);
2506	verify_heap (EV_A_ timers, timercnt);	2914	verify_heap (EV_A_ timers, timercnt);
2507		2915
2508	#if EV_PERIODIC_ENABLE	2916	#if EV_PERIODIC_ENABLE
…		…
2558	#if EV_MULTIPLICITY	2966	#if EV_MULTIPLICITY
2559	struct ev_loop * ecb_cold	2967	struct ev_loop * ecb_cold
2560	#else	2968	#else
2561	int	2969	int
2562	#endif	2970	#endif
2563	ev_default_loop (unsigned int flags)	2971	ev_default_loop (unsigned int flags) EV_THROW
2564	{	2972	{
2565	if (!ev_default_loop_ptr)	2973	if (!ev_default_loop_ptr)
2566	{	2974	{
2567	#if EV_MULTIPLICITY	2975	#if EV_MULTIPLICITY
2568	EV_P = ev_default_loop_ptr = &default_loop_struct;	2976	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2587		2995
2588	return ev_default_loop_ptr;	2996	return ev_default_loop_ptr;
2589	}	2997	}
2590		2998
2591	void	2999	void
2592	ev_loop_fork (EV_P)	3000	ev_loop_fork (EV_P) EV_THROW
2593	{	3001	{
2594	postfork = 1; /* must be in line with ev_default_fork */	3002	postfork = 1;
2595	}	3003	}
2596		3004
2597	/*****************************************************************************/	3005	/*****************************************************************************/
2598		3006
2599	void	3007	void
…		…
2601	{	3009	{
2602	EV_CB_INVOKE ((W)w, revents);	3010	EV_CB_INVOKE ((W)w, revents);
2603	}	3011	}
2604		3012
2605	unsigned int	3013	unsigned int
2606	ev_pending_count (EV_P)	3014	ev_pending_count (EV_P) EV_THROW
2607	{	3015	{
2608	int pri;	3016	int pri;
2609	unsigned int count = 0;	3017	unsigned int count = 0;
2610		3018
2611	for (pri = NUMPRI; pri--; )	3019	for (pri = NUMPRI; pri--; )
…		…
2615	}	3023	}
2616		3024
2617	void noinline	3025	void noinline
2618	ev_invoke_pending (EV_P)	3026	ev_invoke_pending (EV_P)
2619	{	3027	{
2620	int pri;	3028	pendingpri = NUMPRI;
2621		3029
2622	for (pri = NUMPRI; pri--; )	3030	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		3031	{
		3032	--pendingpri;
		3033
2623	while (pendingcnt [pri])	3034	while (pendingcnt [pendingpri])
2624	{	3035	{
2625	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	3036	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2626		3037
2627	p->w->pending = 0;	3038	p->w->pending = 0;
2628	EV_CB_INVOKE (p->w, p->events);	3039	EV_CB_INVOKE (p->w, p->events);
2629	EV_FREQUENT_CHECK;	3040	EV_FREQUENT_CHECK;
2630	}	3041	}
		3042	}
2631	}	3043	}
2632		3044
2633	#if EV_IDLE_ENABLE	3045	#if EV_IDLE_ENABLE
2634	/* make idle watchers pending. this handles the "call-idle */	3046	/* make idle watchers pending. this handles the "call-idle */
2635	/* only when higher priorities are idle" logic */	3047	/* only when higher priorities are idle" logic */
…		…
2725	{	3137	{
2726	EV_FREQUENT_CHECK;	3138	EV_FREQUENT_CHECK;
2727		3139
2728	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3140	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2729	{	3141	{
2730	int feed_count = 0;
2731
2732	do	3142	do
2733	{	3143	{
2734	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3144	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2735		3145
2736	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3146	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2870		3280
2871	mn_now = ev_rt_now;	3281	mn_now = ev_rt_now;
2872	}	3282	}
2873	}	3283	}
2874		3284
2875	void	3285	int
2876	ev_run (EV_P_ int flags)	3286	ev_run (EV_P_ int flags)
2877	{	3287	{
2878	#if EV_FEATURE_API	3288	#if EV_FEATURE_API
2879	++loop_depth;	3289	++loop_depth;
2880	#endif	3290	#endif
…		…
2993	#endif	3403	#endif
2994	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3404	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2995	backend_poll (EV_A_ waittime);	3405	backend_poll (EV_A_ waittime);
2996	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3406	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2997		3407
2998	pipe_write_wanted = 0; /* just an optimsiation, no fence needed */	3408	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2999		3409
		3410	ECB_MEMORY_FENCE_ACQUIRE;
3000	if (pipe_write_skipped)	3411	if (pipe_write_skipped)
3001	{	3412	{
3002	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3413	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3003	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3414	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3004	}	3415	}
…		…
3037	loop_done = EVBREAK_CANCEL;	3448	loop_done = EVBREAK_CANCEL;
3038		3449
3039	#if EV_FEATURE_API	3450	#if EV_FEATURE_API
3040	--loop_depth;	3451	--loop_depth;
3041	#endif	3452	#endif
		3453
		3454	return activecnt;
3042	}	3455	}
3043		3456
3044	void	3457	void
3045	ev_break (EV_P_ int how)	3458	ev_break (EV_P_ int how) EV_THROW
3046	{	3459	{
3047	loop_done = how;	3460	loop_done = how;
3048	}	3461	}
3049		3462
3050	void	3463	void
3051	ev_ref (EV_P)	3464	ev_ref (EV_P) EV_THROW
3052	{	3465	{
3053	++activecnt;	3466	++activecnt;
3054	}	3467	}
3055		3468
3056	void	3469	void
3057	ev_unref (EV_P)	3470	ev_unref (EV_P) EV_THROW
3058	{	3471	{
3059	--activecnt;	3472	--activecnt;
3060	}	3473	}
3061		3474
3062	void	3475	void
3063	ev_now_update (EV_P)	3476	ev_now_update (EV_P) EV_THROW
3064	{	3477	{
3065	time_update (EV_A_ 1e100);	3478	time_update (EV_A_ 1e100);
3066	}	3479	}
3067		3480
3068	void	3481	void
3069	ev_suspend (EV_P)	3482	ev_suspend (EV_P) EV_THROW
3070	{	3483	{
3071	ev_now_update (EV_A);	3484	ev_now_update (EV_A);
3072	}	3485	}
3073		3486
3074	void	3487	void
3075	ev_resume (EV_P)	3488	ev_resume (EV_P) EV_THROW
3076	{	3489	{
3077	ev_tstamp mn_prev = mn_now;	3490	ev_tstamp mn_prev = mn_now;
3078		3491
3079	ev_now_update (EV_A);	3492	ev_now_update (EV_A);
3080	timers_reschedule (EV_A_ mn_now - mn_prev);	3493	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3119	w->pending = 0;	3532	w->pending = 0;
3120	}	3533	}
3121	}	3534	}
3122		3535
3123	int	3536	int
3124	ev_clear_pending (EV_P_ void *w)	3537	ev_clear_pending (EV_P_ void *w) EV_THROW
3125	{	3538	{
3126	W w_ = (W)w;	3539	W w_ = (W)w;
3127	int pending = w_->pending;	3540	int pending = w_->pending;
3128		3541
3129	if (expect_true (pending))	3542	if (expect_true (pending))
…		…
3162	}	3575	}
3163		3576
3164	/*****************************************************************************/	3577	/*****************************************************************************/
3165		3578
3166	void noinline	3579	void noinline
3167	ev_io_start (EV_P_ ev_io *w)	3580	ev_io_start (EV_P_ ev_io *w) EV_THROW
3168	{	3581	{
3169	int fd = w->fd;	3582	int fd = w->fd;
3170		3583
3171	if (expect_false (ev_is_active (w)))	3584	if (expect_false (ev_is_active (w)))
3172	return;	3585	return;
…		…
3178		3591
3179	ev_start (EV_A_ (W)w, 1);	3592	ev_start (EV_A_ (W)w, 1);
3180	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3593	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3181	wlist_add (&anfds[fd].head, (WL)w);	3594	wlist_add (&anfds[fd].head, (WL)w);
3182		3595
		3596	/* common bug, apparently */
		3597	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3598
3183	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3599	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3184	w->events &= ~EV__IOFDSET;	3600	w->events &= ~EV__IOFDSET;
3185		3601
3186	EV_FREQUENT_CHECK;	3602	EV_FREQUENT_CHECK;
3187	}	3603	}
3188		3604
3189	void noinline	3605	void noinline
3190	ev_io_stop (EV_P_ ev_io *w)	3606	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3191	{	3607	{
3192	clear_pending (EV_A_ (W)w);	3608	clear_pending (EV_A_ (W)w);
3193	if (expect_false (!ev_is_active (w)))	3609	if (expect_false (!ev_is_active (w)))
3194	return;	3610	return;
3195		3611
…		…
3204		3620
3205	EV_FREQUENT_CHECK;	3621	EV_FREQUENT_CHECK;
3206	}	3622	}
3207		3623
3208	void noinline	3624	void noinline
3209	ev_timer_start (EV_P_ ev_timer *w)	3625	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3210	{	3626	{
3211	if (expect_false (ev_is_active (w)))	3627	if (expect_false (ev_is_active (w)))
3212	return;	3628	return;
3213		3629
3214	ev_at (w) += mn_now;	3630	ev_at (w) += mn_now;
…		…
3228		3644
3229	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3645	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3230	}	3646	}
3231		3647
3232	void noinline	3648	void noinline
3233	ev_timer_stop (EV_P_ ev_timer *w)	3649	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3234	{	3650	{
3235	clear_pending (EV_A_ (W)w);	3651	clear_pending (EV_A_ (W)w);
3236	if (expect_false (!ev_is_active (w)))	3652	if (expect_false (!ev_is_active (w)))
3237	return;	3653	return;
3238		3654
…		…
3258		3674
3259	EV_FREQUENT_CHECK;	3675	EV_FREQUENT_CHECK;
3260	}	3676	}
3261		3677
3262	void noinline	3678	void noinline
3263	ev_timer_again (EV_P_ ev_timer *w)	3679	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3264	{	3680	{
3265	EV_FREQUENT_CHECK;	3681	EV_FREQUENT_CHECK;
		3682
		3683	clear_pending (EV_A_ (W)w);
3266		3684
3267	if (ev_is_active (w))	3685	if (ev_is_active (w))
3268	{	3686	{
3269	if (w->repeat)	3687	if (w->repeat)
3270	{	3688	{
…		…
3283		3701
3284	EV_FREQUENT_CHECK;	3702	EV_FREQUENT_CHECK;
3285	}	3703	}
3286		3704
3287	ev_tstamp	3705	ev_tstamp
3288	ev_timer_remaining (EV_P_ ev_timer *w)	3706	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3289	{	3707	{
3290	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3708	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3291	}	3709	}
3292		3710
3293	#if EV_PERIODIC_ENABLE	3711	#if EV_PERIODIC_ENABLE
3294	void noinline	3712	void noinline
3295	ev_periodic_start (EV_P_ ev_periodic *w)	3713	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3296	{	3714	{
3297	if (expect_false (ev_is_active (w)))	3715	if (expect_false (ev_is_active (w)))
3298	return;	3716	return;
3299		3717
3300	if (w->reschedule_cb)	3718	if (w->reschedule_cb)
…		…
3320		3738
3321	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3739	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3322	}	3740	}
3323		3741
3324	void noinline	3742	void noinline
3325	ev_periodic_stop (EV_P_ ev_periodic *w)	3743	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3326	{	3744	{
3327	clear_pending (EV_A_ (W)w);	3745	clear_pending (EV_A_ (W)w);
3328	if (expect_false (!ev_is_active (w)))	3746	if (expect_false (!ev_is_active (w)))
3329	return;	3747	return;
3330		3748
…		…
3348		3766
3349	EV_FREQUENT_CHECK;	3767	EV_FREQUENT_CHECK;
3350	}	3768	}
3351		3769
3352	void noinline	3770	void noinline
3353	ev_periodic_again (EV_P_ ev_periodic *w)	3771	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3354	{	3772	{
3355	/* TODO: use adjustheap and recalculation */	3773	/* TODO: use adjustheap and recalculation */
3356	ev_periodic_stop (EV_A_ w);	3774	ev_periodic_stop (EV_A_ w);
3357	ev_periodic_start (EV_A_ w);	3775	ev_periodic_start (EV_A_ w);
3358	}	3776	}
…		…
3363	#endif	3781	#endif
3364		3782
3365	#if EV_SIGNAL_ENABLE	3783	#if EV_SIGNAL_ENABLE
3366		3784
3367	void noinline	3785	void noinline
3368	ev_signal_start (EV_P_ ev_signal *w)	3786	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3369	{	3787	{
3370	if (expect_false (ev_is_active (w)))	3788	if (expect_false (ev_is_active (w)))
3371	return;	3789	return;
3372		3790
3373	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3791	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3375	#if EV_MULTIPLICITY	3793	#if EV_MULTIPLICITY
3376	assert (("libev: a signal must not be attached to two different loops",	3794	assert (("libev: a signal must not be attached to two different loops",
3377	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3795	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3378		3796
3379	signals [w->signum - 1].loop = EV_A;	3797	signals [w->signum - 1].loop = EV_A;
		3798	ECB_MEMORY_FENCE_RELEASE;
3380	#endif	3799	#endif
3381		3800
3382	EV_FREQUENT_CHECK;	3801	EV_FREQUENT_CHECK;
3383		3802
3384	#if EV_USE_SIGNALFD	3803	#if EV_USE_SIGNALFD
…		…
3444		3863
3445	EV_FREQUENT_CHECK;	3864	EV_FREQUENT_CHECK;
3446	}	3865	}
3447		3866
3448	void noinline	3867	void noinline
3449	ev_signal_stop (EV_P_ ev_signal *w)	3868	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3450	{	3869	{
3451	clear_pending (EV_A_ (W)w);	3870	clear_pending (EV_A_ (W)w);
3452	if (expect_false (!ev_is_active (w)))	3871	if (expect_false (!ev_is_active (w)))
3453	return;	3872	return;
3454		3873
…		…
3485	#endif	3904	#endif
3486		3905
3487	#if EV_CHILD_ENABLE	3906	#if EV_CHILD_ENABLE
3488		3907
3489	void	3908	void
3490	ev_child_start (EV_P_ ev_child *w)	3909	ev_child_start (EV_P_ ev_child *w) EV_THROW
3491	{	3910	{
3492	#if EV_MULTIPLICITY	3911	#if EV_MULTIPLICITY
3493	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3912	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3494	#endif	3913	#endif
3495	if (expect_false (ev_is_active (w)))	3914	if (expect_false (ev_is_active (w)))
…		…
3502		3921
3503	EV_FREQUENT_CHECK;	3922	EV_FREQUENT_CHECK;
3504	}	3923	}
3505		3924
3506	void	3925	void
3507	ev_child_stop (EV_P_ ev_child *w)	3926	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3508	{	3927	{
3509	clear_pending (EV_A_ (W)w);	3928	clear_pending (EV_A_ (W)w);
3510	if (expect_false (!ev_is_active (w)))	3929	if (expect_false (!ev_is_active (w)))
3511	return;	3930	return;
3512		3931
…		…
3539	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3958	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3540		3959
3541	static void noinline	3960	static void noinline
3542	infy_add (EV_P_ ev_stat *w)	3961	infy_add (EV_P_ ev_stat *w)
3543	{	3962	{
3544	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	3963	w->wd = inotify_add_watch (fs_fd, w->path,
		3964	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3965	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3966	| IN_DONT_FOLLOW | IN_MASK_ADD);
3545		3967
3546	if (w->wd >= 0)	3968	if (w->wd >= 0)
3547	{	3969	{
3548	struct statfs sfs;	3970	struct statfs sfs;
3549		3971
…		…
3553		3975
3554	if (!fs_2625)	3976	if (!fs_2625)
3555	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3977	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3556	else if (!statfs (w->path, &sfs)	3978	else if (!statfs (w->path, &sfs)
3557	&& (sfs.f_type == 0x1373 /* devfs */	3979	&& (sfs.f_type == 0x1373 /* devfs */
		3980	|| sfs.f_type == 0x4006 /* fat */
		3981	|| sfs.f_type == 0x4d44 /* msdos */
3558	|| sfs.f_type == 0xEF53 /* ext2/3 */	3982	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3983	|| sfs.f_type == 0x72b6 /* jffs2 */
		3984	|| sfs.f_type == 0x858458f6 /* ramfs */
		3985	|| sfs.f_type == 0x5346544e /* ntfs */
3559	|| sfs.f_type == 0x3153464a /* jfs */	3986	|| sfs.f_type == 0x3153464a /* jfs */
		3987	|| sfs.f_type == 0x9123683e /* btrfs */
3560	|| sfs.f_type == 0x52654973 /* reiser3 */	3988	|| sfs.f_type == 0x52654973 /* reiser3 */
3561	|| sfs.f_type == 0x01021994 /* tempfs */	3989	|| sfs.f_type == 0x01021994 /* tmpfs */
3562	|| sfs.f_type == 0x58465342 /* xfs */))	3990	|| sfs.f_type == 0x58465342 /* xfs */))
3563	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3991	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3564	else	3992	else
3565	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3993	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3566	}	3994	}
…		…
3679	}	4107	}
3680		4108
3681	inline_size int	4109	inline_size int
3682	infy_newfd (void)	4110	infy_newfd (void)
3683	{	4111	{
3684	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4112	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3685	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4113	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3686	if (fd >= 0)	4114	if (fd >= 0)
3687	return fd;	4115	return fd;
3688	#endif	4116	#endif
3689	return inotify_init ();	4117	return inotify_init ();
…		…
3764	#else	4192	#else
3765	# define EV_LSTAT(p,b) lstat (p, b)	4193	# define EV_LSTAT(p,b) lstat (p, b)
3766	#endif	4194	#endif
3767		4195
3768	void	4196	void
3769	ev_stat_stat (EV_P_ ev_stat *w)	4197	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3770	{	4198	{
3771	if (lstat (w->path, &w->attr) < 0)	4199	if (lstat (w->path, &w->attr) < 0)
3772	w->attr.st_nlink = 0;	4200	w->attr.st_nlink = 0;
3773	else if (!w->attr.st_nlink)	4201	else if (!w->attr.st_nlink)
3774	w->attr.st_nlink = 1;	4202	w->attr.st_nlink = 1;
…		…
3813	ev_feed_event (EV_A_ w, EV_STAT);	4241	ev_feed_event (EV_A_ w, EV_STAT);
3814	}	4242	}
3815	}	4243	}
3816		4244
3817	void	4245	void
3818	ev_stat_start (EV_P_ ev_stat *w)	4246	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3819	{	4247	{
3820	if (expect_false (ev_is_active (w)))	4248	if (expect_false (ev_is_active (w)))
3821	return;	4249	return;
3822		4250
3823	ev_stat_stat (EV_A_ w);	4251	ev_stat_stat (EV_A_ w);
…		…
3844		4272
3845	EV_FREQUENT_CHECK;	4273	EV_FREQUENT_CHECK;
3846	}	4274	}
3847		4275
3848	void	4276	void
3849	ev_stat_stop (EV_P_ ev_stat *w)	4277	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3850	{	4278	{
3851	clear_pending (EV_A_ (W)w);	4279	clear_pending (EV_A_ (W)w);
3852	if (expect_false (!ev_is_active (w)))	4280	if (expect_false (!ev_is_active (w)))
3853	return;	4281	return;
3854		4282
…		…
3870	}	4298	}
3871	#endif	4299	#endif
3872		4300
3873	#if EV_IDLE_ENABLE	4301	#if EV_IDLE_ENABLE
3874	void	4302	void
3875	ev_idle_start (EV_P_ ev_idle *w)	4303	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3876	{	4304	{
3877	if (expect_false (ev_is_active (w)))	4305	if (expect_false (ev_is_active (w)))
3878	return;	4306	return;
3879		4307
3880	pri_adjust (EV_A_ (W)w);	4308	pri_adjust (EV_A_ (W)w);
…		…
3893		4321
3894	EV_FREQUENT_CHECK;	4322	EV_FREQUENT_CHECK;
3895	}	4323	}
3896		4324
3897	void	4325	void
3898	ev_idle_stop (EV_P_ ev_idle *w)	4326	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3899	{	4327	{
3900	clear_pending (EV_A_ (W)w);	4328	clear_pending (EV_A_ (W)w);
3901	if (expect_false (!ev_is_active (w)))	4329	if (expect_false (!ev_is_active (w)))
3902	return;	4330	return;
3903		4331
…		…
3917	}	4345	}
3918	#endif	4346	#endif
3919		4347
3920	#if EV_PREPARE_ENABLE	4348	#if EV_PREPARE_ENABLE
3921	void	4349	void
3922	ev_prepare_start (EV_P_ ev_prepare *w)	4350	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3923	{	4351	{
3924	if (expect_false (ev_is_active (w)))	4352	if (expect_false (ev_is_active (w)))
3925	return;	4353	return;
3926		4354
3927	EV_FREQUENT_CHECK;	4355	EV_FREQUENT_CHECK;
…		…
3932		4360
3933	EV_FREQUENT_CHECK;	4361	EV_FREQUENT_CHECK;
3934	}	4362	}
3935		4363
3936	void	4364	void
3937	ev_prepare_stop (EV_P_ ev_prepare *w)	4365	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3938	{	4366	{
3939	clear_pending (EV_A_ (W)w);	4367	clear_pending (EV_A_ (W)w);
3940	if (expect_false (!ev_is_active (w)))	4368	if (expect_false (!ev_is_active (w)))
3941	return;	4369	return;
3942		4370
…		…
3955	}	4383	}
3956	#endif	4384	#endif
3957		4385
3958	#if EV_CHECK_ENABLE	4386	#if EV_CHECK_ENABLE
3959	void	4387	void
3960	ev_check_start (EV_P_ ev_check *w)	4388	ev_check_start (EV_P_ ev_check *w) EV_THROW
3961	{	4389	{
3962	if (expect_false (ev_is_active (w)))	4390	if (expect_false (ev_is_active (w)))
3963	return;	4391	return;
3964		4392
3965	EV_FREQUENT_CHECK;	4393	EV_FREQUENT_CHECK;
…		…
3970		4398
3971	EV_FREQUENT_CHECK;	4399	EV_FREQUENT_CHECK;
3972	}	4400	}
3973		4401
3974	void	4402	void
3975	ev_check_stop (EV_P_ ev_check *w)	4403	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3976	{	4404	{
3977	clear_pending (EV_A_ (W)w);	4405	clear_pending (EV_A_ (W)w);
3978	if (expect_false (!ev_is_active (w)))	4406	if (expect_false (!ev_is_active (w)))
3979	return;	4407	return;
3980		4408
…		…
3993	}	4421	}
3994	#endif	4422	#endif
3995		4423
3996	#if EV_EMBED_ENABLE	4424	#if EV_EMBED_ENABLE
3997	void noinline	4425	void noinline
3998	ev_embed_sweep (EV_P_ ev_embed *w)	4426	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3999	{	4427	{
4000	ev_run (w->other, EVRUN_NOWAIT);	4428	ev_run (w->other, EVRUN_NOWAIT);
4001	}	4429	}
4002		4430
4003	static void	4431	static void
…		…
4051	ev_idle_stop (EV_A_ idle);	4479	ev_idle_stop (EV_A_ idle);
4052	}	4480	}
4053	#endif	4481	#endif
4054		4482
4055	void	4483	void
4056	ev_embed_start (EV_P_ ev_embed *w)	4484	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4057	{	4485	{
4058	if (expect_false (ev_is_active (w)))	4486	if (expect_false (ev_is_active (w)))
4059	return;	4487	return;
4060		4488
4061	{	4489	{
…		…
4082		4510
4083	EV_FREQUENT_CHECK;	4511	EV_FREQUENT_CHECK;
4084	}	4512	}
4085		4513
4086	void	4514	void
4087	ev_embed_stop (EV_P_ ev_embed *w)	4515	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4088	{	4516	{
4089	clear_pending (EV_A_ (W)w);	4517	clear_pending (EV_A_ (W)w);
4090	if (expect_false (!ev_is_active (w)))	4518	if (expect_false (!ev_is_active (w)))
4091	return;	4519	return;
4092		4520
…		…
4102	}	4530	}
4103	#endif	4531	#endif
4104		4532
4105	#if EV_FORK_ENABLE	4533	#if EV_FORK_ENABLE
4106	void	4534	void
4107	ev_fork_start (EV_P_ ev_fork *w)	4535	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4108	{	4536	{
4109	if (expect_false (ev_is_active (w)))	4537	if (expect_false (ev_is_active (w)))
4110	return;	4538	return;
4111		4539
4112	EV_FREQUENT_CHECK;	4540	EV_FREQUENT_CHECK;
…		…
4117		4545
4118	EV_FREQUENT_CHECK;	4546	EV_FREQUENT_CHECK;
4119	}	4547	}
4120		4548
4121	void	4549	void
4122	ev_fork_stop (EV_P_ ev_fork *w)	4550	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4123	{	4551	{
4124	clear_pending (EV_A_ (W)w);	4552	clear_pending (EV_A_ (W)w);
4125	if (expect_false (!ev_is_active (w)))	4553	if (expect_false (!ev_is_active (w)))
4126	return;	4554	return;
4127		4555
…		…
4140	}	4568	}
4141	#endif	4569	#endif
4142		4570
4143	#if EV_CLEANUP_ENABLE	4571	#if EV_CLEANUP_ENABLE
4144	void	4572	void
4145	ev_cleanup_start (EV_P_ ev_cleanup *w)	4573	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4146	{	4574	{
4147	if (expect_false (ev_is_active (w)))	4575	if (expect_false (ev_is_active (w)))
4148	return;	4576	return;
4149		4577
4150	EV_FREQUENT_CHECK;	4578	EV_FREQUENT_CHECK;
…		…
4157	ev_unref (EV_A);	4585	ev_unref (EV_A);
4158	EV_FREQUENT_CHECK;	4586	EV_FREQUENT_CHECK;
4159	}	4587	}
4160		4588
4161	void	4589	void
4162	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4590	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4163	{	4591	{
4164	clear_pending (EV_A_ (W)w);	4592	clear_pending (EV_A_ (W)w);
4165	if (expect_false (!ev_is_active (w)))	4593	if (expect_false (!ev_is_active (w)))
4166	return;	4594	return;
4167		4595
…		…
4181	}	4609	}
4182	#endif	4610	#endif
4183		4611
4184	#if EV_ASYNC_ENABLE	4612	#if EV_ASYNC_ENABLE
4185	void	4613	void
4186	ev_async_start (EV_P_ ev_async *w)	4614	ev_async_start (EV_P_ ev_async *w) EV_THROW
4187	{	4615	{
4188	if (expect_false (ev_is_active (w)))	4616	if (expect_false (ev_is_active (w)))
4189	return;	4617	return;
4190		4618
4191	w->sent = 0;	4619	w->sent = 0;
…		…
4200		4628
4201	EV_FREQUENT_CHECK;	4629	EV_FREQUENT_CHECK;
4202	}	4630	}
4203		4631
4204	void	4632	void
4205	ev_async_stop (EV_P_ ev_async *w)	4633	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4206	{	4634	{
4207	clear_pending (EV_A_ (W)w);	4635	clear_pending (EV_A_ (W)w);
4208	if (expect_false (!ev_is_active (w)))	4636	if (expect_false (!ev_is_active (w)))
4209	return;	4637	return;
4210		4638
…		…
4221		4649
4222	EV_FREQUENT_CHECK;	4650	EV_FREQUENT_CHECK;
4223	}	4651	}
4224		4652
4225	void	4653	void
4226	ev_async_send (EV_P_ ev_async *w)	4654	ev_async_send (EV_P_ ev_async *w) EV_THROW
4227	{	4655	{
4228	w->sent = 1;	4656	w->sent = 1;
4229	evpipe_write (EV_A_ &async_pending);	4657	evpipe_write (EV_A_ &async_pending);
4230	}	4658	}
4231	#endif	4659	#endif
…		…
4268		4696
4269	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4697	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4270	}	4698	}
4271		4699
4272	void	4700	void
4273	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4701	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4274	{	4702	{
4275	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4703	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4276		4704
4277	if (expect_false (!once))	4705	if (expect_false (!once))
4278	{	4706	{
…		…
4300		4728
4301	/*****************************************************************************/	4729	/*****************************************************************************/
4302		4730
4303	#if EV_WALK_ENABLE	4731	#if EV_WALK_ENABLE
4304	void ecb_cold	4732	void ecb_cold
4305	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4733	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4306	{	4734	{
4307	int i, j;	4735	int i, j;
4308	ev_watcher_list *wl, *wn;	4736	ev_watcher_list *wl, *wn;
4309		4737
4310	if (types & (EV_IO | EV_EMBED))	4738	if (types & (EV_IO | EV_EMBED))
…		…
4416		4844
4417	#if EV_MULTIPLICITY	4845	#if EV_MULTIPLICITY
4418	#include "ev_wrap.h"	4846	#include "ev_wrap.h"
4419	#endif	4847	#endif
4420		4848
4421	EV_CPP(})
4422

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines