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Comparing libev/ev.c (file contents):
Revision 1.381 by root, Mon Jun 27 21:29:35 2011 UTC vs.
Revision 1.454 by root, Fri Mar 1 11:13:22 2013 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
59	# endif	59	# endif
60	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 1	61	# define EV_USE_MONOTONIC 1
62	# endif	62	# endif
63	# endif	63	# endif
64	# elif !defined(EV_USE_CLOCK_SYSCALL)	64	# elif !defined EV_USE_CLOCK_SYSCALL
65	# define EV_USE_CLOCK_SYSCALL 0	65	# define EV_USE_CLOCK_SYSCALL 0
66	# endif	66	# endif
67		67
68	# if HAVE_CLOCK_GETTIME	68	# if HAVE_CLOCK_GETTIME
69	# ifndef EV_USE_MONOTONIC	69	# ifndef EV_USE_MONOTONIC
…		…
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	# error "unable to find value for NSIG, please report"
237	/* to make it compile regardless, just remove the above line, */	247	/* to make it compile regardless, just remove the above line, */
238	/* but consider reporting it, too! :) */	248	/* but consider reporting it, too! :) */
…		…
250	# define EV_USE_CLOCK_SYSCALL 0	260	# define EV_USE_CLOCK_SYSCALL 0
251	# endif	261	# endif
252	#endif	262	#endif
253		263
254	#ifndef EV_USE_MONOTONIC	264	#ifndef EV_USE_MONOTONIC
255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256	# define EV_USE_MONOTONIC EV_FEATURE_OS	266	# define EV_USE_MONOTONIC EV_FEATURE_OS
257	# else	267	# else
258	# define EV_USE_MONOTONIC 0	268	# define EV_USE_MONOTONIC 0
259	# endif	269	# endif
260	#endif	270	#endif
…		…
347		357
348	#ifndef EV_HEAP_CACHE_AT	358	#ifndef EV_HEAP_CACHE_AT
349	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	359	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350	#endif	360	#endif
351		361
		362	#ifdef ANDROID
		363	/* supposedly, android doesn't typedef fd_mask */
		364	# undef EV_USE_SELECT
		365	# define EV_USE_SELECT 0
		366	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		367	# undef EV_USE_CLOCK_SYSCALL
		368	# define EV_USE_CLOCK_SYSCALL 0
		369	#endif
		370
		371	/* aix's poll.h seems to cause lots of trouble */
		372	#ifdef _AIX
		373	/* AIX has a completely broken poll.h header */
		374	# undef EV_USE_POLL
		375	# define EV_USE_POLL 0
		376	#endif
		377
352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	378	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353	/* which makes programs even slower. might work on other unices, too. */	379	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	380	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	381	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	382	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	383	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	384	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	385	# define EV_USE_MONOTONIC 1
360	# else	386	# else
…		…
363	# endif	389	# endif
364	#endif	390	#endif
365		391
366	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	392	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367		393
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	394	#ifndef CLOCK_MONOTONIC
375	# undef EV_USE_MONOTONIC	395	# undef EV_USE_MONOTONIC
376	# define EV_USE_MONOTONIC 0	396	# define EV_USE_MONOTONIC 0
377	#endif	397	#endif
378		398
…		…
386	# define EV_USE_INOTIFY 0	406	# define EV_USE_INOTIFY 0
387	#endif	407	#endif
388		408
389	#if !EV_USE_NANOSLEEP	409	#if !EV_USE_NANOSLEEP
390	/* hp-ux has it in sys/time.h, which we unconditionally include above */	410	/* hp-ux has it in sys/time.h, which we unconditionally include above */
391	# if !defined(_WIN32) && !defined(__hpux)	411	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	412	# include <sys/select.h>
393	# endif	413	# endif
394	#endif	414	#endif
395		415
396	#if EV_USE_INOTIFY	416	#if EV_USE_INOTIFY
…		…
399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	419	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400	# ifndef IN_DONT_FOLLOW	420	# ifndef IN_DONT_FOLLOW
401	# undef EV_USE_INOTIFY	421	# undef EV_USE_INOTIFY
402	# define EV_USE_INOTIFY 0	422	# define EV_USE_INOTIFY 0
403	# endif	423	# endif
404	#endif
405
406	#if EV_SELECT_IS_WINSOCKET
407	# include <winsock.h>
408	#endif	424	#endif
409		425
410	#if EV_USE_EVENTFD	426	#if EV_USE_EVENTFD
411	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	427	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412	# include <stdint.h>	428	# include <stdint.h>
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	480	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		481
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	482	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	483	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		484
469	/* the following are taken from libecb */	485	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470	/* ecb.h start */	486	/* ECB.H BEGIN */
		487	/*
		488	* libecb - http://software.schmorp.de/pkg/libecb
		489	*
		490	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		491	* Copyright (©) 2011 Emanuele Giaquinta
		492	* All rights reserved.
		493	*
		494	* Redistribution and use in source and binary forms, with or without modifica-
		495	* tion, are permitted provided that the following conditions are met:
		496	*
		497	* 1. Redistributions of source code must retain the above copyright notice,
		498	* this list of conditions and the following disclaimer.
		499	*
		500	* 2. Redistributions in binary form must reproduce the above copyright
		501	* notice, this list of conditions and the following disclaimer in the
		502	* documentation and/or other materials provided with the distribution.
		503	*
		504	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		505	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		506	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		507	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		508	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		509	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		510	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		511	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		512	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		513	* OF THE POSSIBILITY OF SUCH DAMAGE.
		514	*/
		515
		516	#ifndef ECB_H
		517	#define ECB_H
		518
		519	/* 16 bits major, 16 bits minor */
		520	#define ECB_VERSION 0x00010003
		521
		522	#ifdef _WIN32
		523	typedef signed char int8_t;
		524	typedef unsigned char uint8_t;
		525	typedef signed short int16_t;
		526	typedef unsigned short uint16_t;
		527	typedef signed int int32_t;
		528	typedef unsigned int uint32_t;
		529	#if __GNUC__
		530	typedef signed long long int64_t;
		531	typedef unsigned long long uint64_t;
		532	#else /* _MSC_VER || __BORLANDC__ */
		533	typedef signed __int64 int64_t;
		534	typedef unsigned __int64 uint64_t;
		535	#endif
		536	#ifdef _WIN64
		537	#define ECB_PTRSIZE 8
		538	typedef uint64_t uintptr_t;
		539	typedef int64_t intptr_t;
		540	#else
		541	#define ECB_PTRSIZE 4
		542	typedef uint32_t uintptr_t;
		543	typedef int32_t intptr_t;
		544	#endif
		545	#else
		546	#include <inttypes.h>
		547	#if UINTMAX_MAX > 0xffffffffU
		548	#define ECB_PTRSIZE 8
		549	#else
		550	#define ECB_PTRSIZE 4
		551	#endif
		552	#endif
		553
		554	/* work around x32 idiocy by defining proper macros */
		555	#if __x86_64 || _M_AMD64
		556	#if __ILP32
		557	#define ECB_AMD64_X32 1
		558	#else
		559	#define ECB_AMD64 1
		560	#endif
		561	#endif
471		562
472	/* many compilers define _GNUC_ to some versions but then only implement	563	/* many compilers define _GNUC_ to some versions but then only implement
473	* what their idiot authors think are the "more important" extensions,	564	* what their idiot authors think are the "more important" extensions,
474	* causing enourmous grief in return for some better fake benchmark numbers.	565	* causing enormous grief in return for some better fake benchmark numbers.
475	* or so.	566	* or so.
476	* we try to detect these and simply assume they are not gcc - if they have	567	* we try to detect these and simply assume they are not gcc - if they have
477	* an issue with that they should have done it right in the first place.	568	* an issue with that they should have done it right in the first place.
478	*/	569	*/
479	#ifndef ECB_GCC_VERSION	570	#ifndef ECB_GCC_VERSION
480	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	571	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481	#define ECB_GCC_VERSION(major,minor) 0	572	#define ECB_GCC_VERSION(major,minor) 0
482	#else	573	#else
483	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	574	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484	#endif	575	#endif
485	#endif	576	#endif
		577
		578	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		579	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		580	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		581	#define ECB_CPP (__cplusplus+0)
		582	#define ECB_CPP11 (__cplusplus >= 201103L)
		583
		584	#if ECB_CPP
		585	#define ECB_EXTERN_C extern "C"
		586	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		587	#define ECB_EXTERN_C_END }
		588	#else
		589	#define ECB_EXTERN_C extern
		590	#define ECB_EXTERN_C_BEG
		591	#define ECB_EXTERN_C_END
		592	#endif
		593
		594	/*****************************************************************************/
		595
		596	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		597	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		598
		599	#if ECB_NO_THREADS
		600	#define ECB_NO_SMP 1
		601	#endif
		602
		603	#if ECB_NO_SMP
		604	#define ECB_MEMORY_FENCE do { } while (0)
		605	#endif
		606
		607	#ifndef ECB_MEMORY_FENCE
		608	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		609	#if __i386 || __i386__
		610	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		611	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		612	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		613	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		614	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		615	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		616	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		617	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		619	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		620	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		622	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		623	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		624	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		625	#elif __sparc || __sparc__
		626	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		627	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		629	#elif defined __s390__ || defined __s390x__
		630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		631	#elif defined __mips__
		632	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		633	#elif defined __alpha__
		634	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		635	#elif defined __hppa__
		636	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		637	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		638	#elif defined __ia64__
		639	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		640	#endif
		641	#endif
		642	#endif
		643
		644	#ifndef ECB_MEMORY_FENCE
		645	#if ECB_GCC_VERSION(4,7)
		646	/* see comment below (stdatomic.h) about the C11 memory model. */
		647	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		648
		649	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		650	* without risking compile time errors with other compilers. We *could*
		651	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		652	* around this shit time and again.
		653	* #elif defined __clang && __has_feature (cxx_atomic)
		654	* // see comment below (stdatomic.h) about the C11 memory model.
		655	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		656	*/
		657
		658	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		659	#define ECB_MEMORY_FENCE __sync_synchronize ()
		660	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		661	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		662	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		663	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		664	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		665	#elif defined _WIN32
		666	#include <WinNT.h>
		667	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		668	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		669	#include <mbarrier.h>
		670	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		671	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		672	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		673	#elif __xlC__
		674	#define ECB_MEMORY_FENCE __sync ()
		675	#endif
		676	#endif
		677
		678	#ifndef ECB_MEMORY_FENCE
		679	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		680	/* we assume that these memory fences work on all variables/all memory accesses, */
		681	/* not just C11 atomics and atomic accesses */
		682	#include <stdatomic.h>
		683	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		684	/* any fence other than seq_cst, which isn't very efficient for us. */
		685	/* Why that is, we don't know - either the C11 memory model is quite useless */
		686	/* for most usages, or gcc and clang have a bug */
		687	/* I *currently* lean towards the latter, and inefficiently implement */
		688	/* all three of ecb's fences as a seq_cst fence */
		689	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		690	#endif
		691	#endif
		692
		693	#ifndef ECB_MEMORY_FENCE
		694	#if !ECB_AVOID_PTHREADS
		695	/*
		696	* if you get undefined symbol references to pthread_mutex_lock,
		697	* or failure to find pthread.h, then you should implement
		698	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		699	* OR provide pthread.h and link against the posix thread library
		700	* of your system.
		701	*/
		702	#include <pthread.h>
		703	#define ECB_NEEDS_PTHREADS 1
		704	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		705
		706	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		707	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		708	#endif
		709	#endif
		710
		711	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		712	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		713	#endif
		714
		715	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		716	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		717	#endif
		718
		719	/*****************************************************************************/
486		720
487	#if __cplusplus	721	#if __cplusplus
488	#define ecb_inline static inline	722	#define ecb_inline static inline
489	#elif ECB_GCC_VERSION(2,5)	723	#elif ECB_GCC_VERSION(2,5)
490	#define ecb_inline static __inline__	724	#define ecb_inline static __inline__
491	#elif ECB_C99	725	#elif ECB_C99
492	#define ecb_inline static inline	726	#define ecb_inline static inline
493	#else	727	#else
494	#define ecb_inline static	728	#define ecb_inline static
495	#endif	729	#endif
		730
		731	#if ECB_GCC_VERSION(3,3)
		732	#define ecb_restrict __restrict__
		733	#elif ECB_C99
		734	#define ecb_restrict restrict
		735	#else
		736	#define ecb_restrict
		737	#endif
		738
		739	typedef int ecb_bool;
		740
		741	#define ECB_CONCAT_(a, b) a ## b
		742	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		743	#define ECB_STRINGIFY_(a) # a
		744	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		745
		746	#define ecb_function_ ecb_inline
496		747
497	#if ECB_GCC_VERSION(3,1)	748	#if ECB_GCC_VERSION(3,1)
498	#define ecb_attribute(attrlist) __attribute__(attrlist)	749	#define ecb_attribute(attrlist) __attribute__(attrlist)
499	#define ecb_is_constant(expr) __builtin_constant_p (expr)	750	#define ecb_is_constant(expr) __builtin_constant_p (expr)
500	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	751	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
…		…
504	#define ecb_is_constant(expr) 0	755	#define ecb_is_constant(expr) 0
505	#define ecb_expect(expr,value) (expr)	756	#define ecb_expect(expr,value) (expr)
506	#define ecb_prefetch(addr,rw,locality)	757	#define ecb_prefetch(addr,rw,locality)
507	#endif	758	#endif
508		759
		760	/* no emulation for ecb_decltype */
		761	#if ECB_GCC_VERSION(4,5)
		762	#define ecb_decltype(x) __decltype(x)
		763	#elif ECB_GCC_VERSION(3,0)
		764	#define ecb_decltype(x) __typeof(x)
		765	#endif
		766
509	#define ecb_noinline ecb_attribute ((__noinline__))	767	#define ecb_noinline ecb_attribute ((__noinline__))
510	#define ecb_noreturn ecb_attribute ((__noreturn__))
511	#define ecb_unused ecb_attribute ((__unused__))	768	#define ecb_unused ecb_attribute ((__unused__))
512	#define ecb_const ecb_attribute ((__const__))	769	#define ecb_const ecb_attribute ((__const__))
513	#define ecb_pure ecb_attribute ((__pure__))	770	#define ecb_pure ecb_attribute ((__pure__))
		771
		772	#if ECB_C11
		773	#define ecb_noreturn _Noreturn
		774	#else
		775	#define ecb_noreturn ecb_attribute ((__noreturn__))
		776	#endif
514		777
515	#if ECB_GCC_VERSION(4,3)	778	#if ECB_GCC_VERSION(4,3)
516	#define ecb_artificial ecb_attribute ((__artificial__))	779	#define ecb_artificial ecb_attribute ((__artificial__))
517	#define ecb_hot ecb_attribute ((__hot__))	780	#define ecb_hot ecb_attribute ((__hot__))
518	#define ecb_cold ecb_attribute ((__cold__))	781	#define ecb_cold ecb_attribute ((__cold__))
…		…
525	/* put around conditional expressions if you are very sure that the */	788	/* put around conditional expressions if you are very sure that the */
526	/* expression is mostly true or mostly false. note that these return */	789	/* expression is mostly true or mostly false. note that these return */
527	/* booleans, not the expression. */	790	/* booleans, not the expression. */
528	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)	791	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
529	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)	792	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530	/* ecb.h end */	793	/* for compatibility to the rest of the world */
		794	#define ecb_likely(expr) ecb_expect_true (expr)
		795	#define ecb_unlikely(expr) ecb_expect_false (expr)
		796
		797	/* count trailing zero bits and count # of one bits */
		798	#if ECB_GCC_VERSION(3,4)
		799	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		800	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		801	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		802	#define ecb_ctz32(x) __builtin_ctz (x)
		803	#define ecb_ctz64(x) __builtin_ctzll (x)
		804	#define ecb_popcount32(x) __builtin_popcount (x)
		805	/* no popcountll */
		806	#else
		807	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		808	ecb_function_ int
		809	ecb_ctz32 (uint32_t x)
		810	{
		811	int r = 0;
		812
		813	x &= ~x + 1; /* this isolates the lowest bit */
		814
		815	#if ECB_branchless_on_i386
		816	r += !!(x & 0xaaaaaaaa) << 0;
		817	r += !!(x & 0xcccccccc) << 1;
		818	r += !!(x & 0xf0f0f0f0) << 2;
		819	r += !!(x & 0xff00ff00) << 3;
		820	r += !!(x & 0xffff0000) << 4;
		821	#else
		822	if (x & 0xaaaaaaaa) r += 1;
		823	if (x & 0xcccccccc) r += 2;
		824	if (x & 0xf0f0f0f0) r += 4;
		825	if (x & 0xff00ff00) r += 8;
		826	if (x & 0xffff0000) r += 16;
		827	#endif
		828
		829	return r;
		830	}
		831
		832	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		833	ecb_function_ int
		834	ecb_ctz64 (uint64_t x)
		835	{
		836	int shift = x & 0xffffffffU ? 0 : 32;
		837	return ecb_ctz32 (x >> shift) + shift;
		838	}
		839
		840	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		841	ecb_function_ int
		842	ecb_popcount32 (uint32_t x)
		843	{
		844	x -= (x >> 1) & 0x55555555;
		845	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		846	x = ((x >> 4) + x) & 0x0f0f0f0f;
		847	x *= 0x01010101;
		848
		849	return x >> 24;
		850	}
		851
		852	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		853	ecb_function_ int ecb_ld32 (uint32_t x)
		854	{
		855	int r = 0;
		856
		857	if (x >> 16) { x >>= 16; r += 16; }
		858	if (x >> 8) { x >>= 8; r += 8; }
		859	if (x >> 4) { x >>= 4; r += 4; }
		860	if (x >> 2) { x >>= 2; r += 2; }
		861	if (x >> 1) { r += 1; }
		862
		863	return r;
		864	}
		865
		866	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		867	ecb_function_ int ecb_ld64 (uint64_t x)
		868	{
		869	int r = 0;
		870
		871	if (x >> 32) { x >>= 32; r += 32; }
		872
		873	return r + ecb_ld32 (x);
		874	}
		875	#endif
		876
		877	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		878	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		879	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		880	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		881
		882	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		883	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		884	{
		885	return ( (x * 0x0802U & 0x22110U)
		886	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		887	}
		888
		889	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		890	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		891	{
		892	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		893	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		894	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		895	x = ( x >> 8 ) | ( x << 8);
		896
		897	return x;
		898	}
		899
		900	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		901	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		902	{
		903	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		904	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		905	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		906	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		907	x = ( x >> 16 ) | ( x << 16);
		908
		909	return x;
		910	}
		911
		912	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		913	/* so for this version we are lazy */
		914	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		915	ecb_function_ int
		916	ecb_popcount64 (uint64_t x)
		917	{
		918	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		919	}
		920
		921	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		922	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		923	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		924	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		925	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		926	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		927	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		928	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		929
		930	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		931	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		932	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		933	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		934	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		935	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		936	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		937	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		938
		939	#if ECB_GCC_VERSION(4,3)
		940	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		941	#define ecb_bswap32(x) __builtin_bswap32 (x)
		942	#define ecb_bswap64(x) __builtin_bswap64 (x)
		943	#else
		944	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		945	ecb_function_ uint16_t
		946	ecb_bswap16 (uint16_t x)
		947	{
		948	return ecb_rotl16 (x, 8);
		949	}
		950
		951	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		952	ecb_function_ uint32_t
		953	ecb_bswap32 (uint32_t x)
		954	{
		955	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		956	}
		957
		958	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		959	ecb_function_ uint64_t
		960	ecb_bswap64 (uint64_t x)
		961	{
		962	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		963	}
		964	#endif
		965
		966	#if ECB_GCC_VERSION(4,5)
		967	#define ecb_unreachable() __builtin_unreachable ()
		968	#else
		969	/* this seems to work fine, but gcc always emits a warning for it :/ */
		970	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		971	ecb_inline void ecb_unreachable (void) { }
		972	#endif
		973
		974	/* try to tell the compiler that some condition is definitely true */
		975	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
		976
		977	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		978	ecb_inline unsigned char
		979	ecb_byteorder_helper (void)
		980	{
		981	/* the union code still generates code under pressure in gcc, */
		982	/* but less than using pointers, and always seems to */
		983	/* successfully return a constant. */
		984	/* the reason why we have this horrible preprocessor mess */
		985	/* is to avoid it in all cases, at least on common architectures */
		986	/* or when using a recent enough gcc version (>= 4.6) */
		987	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		988	return 0x44;
		989	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		990	return 0x44;
		991	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		992	return 0x11;
		993	#else
		994	union
		995	{
		996	uint32_t i;
		997	uint8_t c;
		998	} u = { 0x11223344 };
		999	return u.c;
		1000	#endif
		1001	}
		1002
		1003	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		1004	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		1005	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		1006	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		1007
		1008	#if ECB_GCC_VERSION(3,0) || ECB_C99
		1009	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		1010	#else
		1011	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		1012	#endif
		1013
		1014	#if __cplusplus
		1015	template<typename T>
		1016	static inline T ecb_div_rd (T val, T div)
		1017	{
		1018	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		1019	}
		1020	template<typename T>
		1021	static inline T ecb_div_ru (T val, T div)
		1022	{
		1023	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		1024	}
		1025	#else
		1026	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		1027	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		1028	#endif
		1029
		1030	#if ecb_cplusplus_does_not_suck
		1031	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		1032	template<typename T, int N>
		1033	static inline int ecb_array_length (const T (&arr)[N])
		1034	{
		1035	return N;
		1036	}
		1037	#else
		1038	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		1039	#endif
		1040
		1041	/*******************************************************************************/
		1042	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1043
		1044	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1045	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1046	#if 0 \
		1047	|| __i386 || __i386__ \
		1048	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1049	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1050	|| defined __arm__ && defined __ARM_EABI__ \
		1051	|| defined __s390__ || defined __s390x__ \
		1052	|| defined __mips__ \
		1053	|| defined __alpha__ \
		1054	|| defined __hppa__ \
		1055	|| defined __ia64__ \
		1056	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1057	#define ECB_STDFP 1
		1058	#include <string.h> /* for memcpy */
		1059	#else
		1060	#define ECB_STDFP 0
		1061	#include <math.h> /* for frexp*, ldexp* */
		1062	#endif
		1063
		1064	#ifndef ECB_NO_LIBM
		1065
		1066	/* convert a float to ieee single/binary32 */
		1067	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1068	ecb_function_ uint32_t
		1069	ecb_float_to_binary32 (float x)
		1070	{
		1071	uint32_t r;
		1072
		1073	#if ECB_STDFP
		1074	memcpy (&r, &x, 4);
		1075	#else
		1076	/* slow emulation, works for anything but -0 */
		1077	uint32_t m;
		1078	int e;
		1079
		1080	if (x == 0e0f ) return 0x00000000U;
		1081	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1082	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1083	if (x != x ) return 0x7fbfffffU;
		1084
		1085	m = frexpf (x, &e) * 0x1000000U;
		1086
		1087	r = m & 0x80000000U;
		1088
		1089	if (r)
		1090	m = -m;
		1091
		1092	if (e <= -126)
		1093	{
		1094	m &= 0xffffffU;
		1095	m >>= (-125 - e);
		1096	e = -126;
		1097	}
		1098
		1099	r |= (e + 126) << 23;
		1100	r |= m & 0x7fffffU;
		1101	#endif
		1102
		1103	return r;
		1104	}
		1105
		1106	/* converts an ieee single/binary32 to a float */
		1107	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1108	ecb_function_ float
		1109	ecb_binary32_to_float (uint32_t x)
		1110	{
		1111	float r;
		1112
		1113	#if ECB_STDFP
		1114	memcpy (&r, &x, 4);
		1115	#else
		1116	/* emulation, only works for normals and subnormals and +0 */
		1117	int neg = x >> 31;
		1118	int e = (x >> 23) & 0xffU;
		1119
		1120	x &= 0x7fffffU;
		1121
		1122	if (e)
		1123	x |= 0x800000U;
		1124	else
		1125	e = 1;
		1126
		1127	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1128	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1129
		1130	r = neg ? -r : r;
		1131	#endif
		1132
		1133	return r;
		1134	}
		1135
		1136	/* convert a double to ieee double/binary64 */
		1137	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1138	ecb_function_ uint64_t
		1139	ecb_double_to_binary64 (double x)
		1140	{
		1141	uint64_t r;
		1142
		1143	#if ECB_STDFP
		1144	memcpy (&r, &x, 8);
		1145	#else
		1146	/* slow emulation, works for anything but -0 */
		1147	uint64_t m;
		1148	int e;
		1149
		1150	if (x == 0e0 ) return 0x0000000000000000U;
		1151	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1152	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1153	if (x != x ) return 0X7ff7ffffffffffffU;
		1154
		1155	m = frexp (x, &e) * 0x20000000000000U;
		1156
		1157	r = m & 0x8000000000000000;;
		1158
		1159	if (r)
		1160	m = -m;
		1161
		1162	if (e <= -1022)
		1163	{
		1164	m &= 0x1fffffffffffffU;
		1165	m >>= (-1021 - e);
		1166	e = -1022;
		1167	}
		1168
		1169	r |= ((uint64_t)(e + 1022)) << 52;
		1170	r |= m & 0xfffffffffffffU;
		1171	#endif
		1172
		1173	return r;
		1174	}
		1175
		1176	/* converts an ieee double/binary64 to a double */
		1177	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1178	ecb_function_ double
		1179	ecb_binary64_to_double (uint64_t x)
		1180	{
		1181	double r;
		1182
		1183	#if ECB_STDFP
		1184	memcpy (&r, &x, 8);
		1185	#else
		1186	/* emulation, only works for normals and subnormals and +0 */
		1187	int neg = x >> 63;
		1188	int e = (x >> 52) & 0x7ffU;
		1189
		1190	x &= 0xfffffffffffffU;
		1191
		1192	if (e)
		1193	x |= 0x10000000000000U;
		1194	else
		1195	e = 1;
		1196
		1197	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1198	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1199
		1200	r = neg ? -r : r;
		1201	#endif
		1202
		1203	return r;
		1204	}
		1205
		1206	#endif
		1207
		1208	#endif
		1209
		1210	/* ECB.H END */
		1211
		1212	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		1213	/* if your architecture doesn't need memory fences, e.g. because it is
		1214	* single-cpu/core, or if you use libev in a project that doesn't use libev
		1215	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		1216	* libev, in which cases the memory fences become nops.
		1217	* alternatively, you can remove this #error and link against libpthread,
		1218	* which will then provide the memory fences.
		1219	*/
		1220	# error "memory fences not defined for your architecture, please report"
		1221	#endif
		1222
		1223	#ifndef ECB_MEMORY_FENCE
		1224	# define ECB_MEMORY_FENCE do { } while (0)
		1225	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		1226	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		1227	#endif
531		1228
532	#define expect_false(cond) ecb_expect_false (cond)	1229	#define expect_false(cond) ecb_expect_false (cond)
533	#define expect_true(cond) ecb_expect_true (cond)	1230	#define expect_true(cond) ecb_expect_true (cond)
534	#define noinline ecb_noinline	1231	#define noinline ecb_noinline
535		1232
…		…
681	{	1378	{
682	write (STDERR_FILENO, msg, strlen (msg));	1379	write (STDERR_FILENO, msg, strlen (msg));
683	}	1380	}
684	#endif	1381	#endif
685		1382
686	static void (*syserr_cb)(const char *msg);	1383	static void (*syserr_cb)(const char *msg) EV_THROW;
687		1384
688	void ecb_cold	1385	void ecb_cold
689	ev_set_syserr_cb (void (*cb)(const char *msg))	1386	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
690	{	1387	{
691	syserr_cb = cb;	1388	syserr_cb = cb;
692	}	1389	}
693		1390
694	static void noinline ecb_cold	1391	static void noinline ecb_cold
…		…
712	abort ();	1409	abort ();
713	}	1410	}
714	}	1411	}
715		1412
716	static void *	1413	static void *
717	ev_realloc_emul (void *ptr, long size)	1414	ev_realloc_emul (void *ptr, long size) EV_THROW
718	{	1415	{
719	#if __GLIBC__
720	return realloc (ptr, size);
721	#else
722	/* some systems, notably openbsd and darwin, fail to properly	1416	/* some systems, notably openbsd and darwin, fail to properly
723	* implement realloc (x, 0) (as required by both ansi c-89 and	1417	* implement realloc (x, 0) (as required by both ansi c-89 and
724	* the single unix specification, so work around them here.	1418	* the single unix specification, so work around them here.
		1419	* recently, also (at least) fedora and debian started breaking it,
		1420	* despite documenting it otherwise.
725	*/	1421	*/
726		1422
727	if (size)	1423	if (size)
728	return realloc (ptr, size);	1424	return realloc (ptr, size);
729		1425
730	free (ptr);	1426	free (ptr);
731	return 0;	1427	return 0;
732	#endif
733	}	1428	}
734		1429
735	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1430	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
736		1431
737	void ecb_cold	1432	void ecb_cold
738	ev_set_allocator (void *(*cb)(void *ptr, long size))	1433	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
739	{	1434	{
740	alloc = cb;	1435	alloc = cb;
741	}	1436	}
742		1437
743	inline_speed void *	1438	inline_speed void *
…		…
831	#undef VAR	1526	#undef VAR
832	};	1527	};
833	#include "ev_wrap.h"	1528	#include "ev_wrap.h"
834		1529
835	static struct ev_loop default_loop_struct;	1530	static struct ev_loop default_loop_struct;
836	struct ev_loop *ev_default_loop_ptr;	1531	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
837		1532
838	#else	1533	#else
839		1534
840	ev_tstamp ev_rt_now;	1535	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
841	#define VAR(name,decl) static decl;	1536	#define VAR(name,decl) static decl;
842	#include "ev_vars.h"	1537	#include "ev_vars.h"
843	#undef VAR	1538	#undef VAR
844		1539
845	static int ev_default_loop_ptr;	1540	static int ev_default_loop_ptr;
…		…
860		1555
861	/*****************************************************************************/	1556	/*****************************************************************************/
862		1557
863	#ifndef EV_HAVE_EV_TIME	1558	#ifndef EV_HAVE_EV_TIME
864	ev_tstamp	1559	ev_tstamp
865	ev_time (void)	1560	ev_time (void) EV_THROW
866	{	1561	{
867	#if EV_USE_REALTIME	1562	#if EV_USE_REALTIME
868	if (expect_true (have_realtime))	1563	if (expect_true (have_realtime))
869	{	1564	{
870	struct timespec ts;	1565	struct timespec ts;
…		…
894	return ev_time ();	1589	return ev_time ();
895	}	1590	}
896		1591
897	#if EV_MULTIPLICITY	1592	#if EV_MULTIPLICITY
898	ev_tstamp	1593	ev_tstamp
899	ev_now (EV_P)	1594	ev_now (EV_P) EV_THROW
900	{	1595	{
901	return ev_rt_now;	1596	return ev_rt_now;
902	}	1597	}
903	#endif	1598	#endif
904		1599
905	void	1600	void
906	ev_sleep (ev_tstamp delay)	1601	ev_sleep (ev_tstamp delay) EV_THROW
907	{	1602	{
908	if (delay > 0.)	1603	if (delay > 0.)
909	{	1604	{
910	#if EV_USE_NANOSLEEP	1605	#if EV_USE_NANOSLEEP
911	struct timespec ts;	1606	struct timespec ts;
912		1607
913	EV_TS_SET (ts, delay);	1608	EV_TS_SET (ts, delay);
914	nanosleep (&ts, 0);	1609	nanosleep (&ts, 0);
915	#elif defined(_WIN32)	1610	#elif defined _WIN32
916	Sleep ((unsigned long)(delay * 1e3));	1611	Sleep ((unsigned long)(delay * 1e3));
917	#else	1612	#else
918	struct timeval tv;	1613	struct timeval tv;
919		1614
920	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1615	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
939		1634
940	do	1635	do
941	ncur <<= 1;	1636	ncur <<= 1;
942	while (cnt > ncur);	1637	while (cnt > ncur);
943		1638
944	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1639	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
945	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1640	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
946	{	1641	{
947	ncur *= elem;	1642	ncur *= elem;
948	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1643	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
949	ncur = ncur - sizeof (void *) * 4;	1644	ncur = ncur - sizeof (void *) * 4;
…		…
964	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1659	memset ((void *)(base), 0, sizeof (*(base)) * (count))
965		1660
966	#define array_needsize(type,base,cur,cnt,init) \	1661	#define array_needsize(type,base,cur,cnt,init) \
967	if (expect_false ((cnt) > (cur))) \	1662	if (expect_false ((cnt) > (cur))) \
968	{ \	1663	{ \
969	int ocur_ = (cur); \	1664	int ecb_unused ocur_ = (cur); \
970	(base) = (type *)array_realloc \	1665	(base) = (type *)array_realloc \
971	(sizeof (type), (base), &(cur), (cnt)); \	1666	(sizeof (type), (base), &(cur), (cnt)); \
972	init ((base) + (ocur_), (cur) - ocur_); \	1667	init ((base) + (ocur_), (cur) - ocur_); \
973	}	1668	}
974		1669
…		…
992	pendingcb (EV_P_ ev_prepare *w, int revents)	1687	pendingcb (EV_P_ ev_prepare *w, int revents)
993	{	1688	{
994	}	1689	}
995		1690
996	void noinline	1691	void noinline
997	ev_feed_event (EV_P_ void *w, int revents)	1692	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
998	{	1693	{
999	W w_ = (W)w;	1694	W w_ = (W)w;
1000	int pri = ABSPRI (w_);	1695	int pri = ABSPRI (w_);
1001		1696
1002	if (expect_false (w_->pending))	1697	if (expect_false (w_->pending))
…		…
1006	w_->pending = ++pendingcnt [pri];	1701	w_->pending = ++pendingcnt [pri];
1007	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1702	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1008	pendings [pri][w_->pending - 1].w = w_;	1703	pendings [pri][w_->pending - 1].w = w_;
1009	pendings [pri][w_->pending - 1].events = revents;	1704	pendings [pri][w_->pending - 1].events = revents;
1010	}	1705	}
		1706
		1707	pendingpri = NUMPRI - 1;
1011	}	1708	}
1012		1709
1013	inline_speed void	1710	inline_speed void
1014	feed_reverse (EV_P_ W w)	1711	feed_reverse (EV_P_ W w)
1015	{	1712	{
…		…
1061	if (expect_true (!anfd->reify))	1758	if (expect_true (!anfd->reify))
1062	fd_event_nocheck (EV_A_ fd, revents);	1759	fd_event_nocheck (EV_A_ fd, revents);
1063	}	1760	}
1064		1761
1065	void	1762	void
1066	ev_feed_fd_event (EV_P_ int fd, int revents)	1763	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1067	{	1764	{
1068	if (fd >= 0 && fd < anfdmax)	1765	if (fd >= 0 && fd < anfdmax)
1069	fd_event_nocheck (EV_A_ fd, revents);	1766	fd_event_nocheck (EV_A_ fd, revents);
1070	}	1767	}
1071		1768
…		…
1390	static void noinline ecb_cold	2087	static void noinline ecb_cold
1391	evpipe_init (EV_P)	2088	evpipe_init (EV_P)
1392	{	2089	{
1393	if (!ev_is_active (&pipe_w))	2090	if (!ev_is_active (&pipe_w))
1394	{	2091	{
		2092	int fds [2];
		2093
1395	# if EV_USE_EVENTFD	2094	# if EV_USE_EVENTFD
		2095	fds [0] = -1;
1396	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2096	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1397	if (evfd < 0 && errno == EINVAL)	2097	if (fds [1] < 0 && errno == EINVAL)
1398	evfd = eventfd (0, 0);	2098	fds [1] = eventfd (0, 0);
1399		2099
1400	if (evfd >= 0)	2100	if (fds [1] < 0)
		2101	# endif
1401	{	2102	{
		2103	while (pipe (fds))
		2104	ev_syserr ("(libev) error creating signal/async pipe");
		2105
		2106	fd_intern (fds [0]);
		2107	}
		2108
		2109	fd_intern (fds [1]);
		2110
1402	evpipe [0] = -1;	2111	evpipe [0] = fds [0];
1403	fd_intern (evfd); /* doing it twice doesn't hurt */	2112
1404	ev_io_set (&pipe_w, evfd, EV_READ);	2113	if (evpipe [1] < 0)
		2114	evpipe [1] = fds [1]; /* first call, set write fd */
		2115	else
		2116	{
		2117	/* on subsequent calls, do not change evpipe [1] */
		2118	/* so that evpipe_write can always rely on its value. */
		2119	/* this branch does not do anything sensible on windows, */
		2120	/* so must not be executed on windows */
		2121
		2122	dup2 (fds [1], evpipe [1]);
		2123	close (fds [1]);
		2124	}
		2125
		2126	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2127	ev_io_start (EV_A_ &pipe_w);
		2128	ev_unref (EV_A); /* watcher should not keep loop alive */
		2129	}
		2130	}
		2131
		2132	inline_speed void
		2133	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2134	{
		2135	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2136
		2137	if (expect_true (*flag))
		2138	return;
		2139
		2140	*flag = 1;
		2141	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2142
		2143	pipe_write_skipped = 1;
		2144
		2145	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2146
		2147	if (pipe_write_wanted)
		2148	{
		2149	int old_errno;
		2150
		2151	pipe_write_skipped = 0;
		2152	ECB_MEMORY_FENCE_RELEASE;
		2153
		2154	old_errno = errno; /* save errno because write will clobber it */
		2155
		2156	#if EV_USE_EVENTFD
		2157	if (evpipe [0] < 0)
		2158	{
		2159	uint64_t counter = 1;
		2160	write (evpipe [1], &counter, sizeof (uint64_t));
1405	}	2161	}
1406	else	2162	else
1407	# endif	2163	#endif
1408	{	2164	{
1409	while (pipe (evpipe))	2165	#ifdef _WIN32
1410	ev_syserr ("(libev) error creating signal/async pipe");	2166	WSABUF buf;
1411		2167	DWORD sent;
1412	fd_intern (evpipe [0]);	2168	buf.buf = &buf;
1413	fd_intern (evpipe [1]);	2169	buf.len = 1;
1414	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2170	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		2171	#else
		2172	write (evpipe [1], &(evpipe [1]), 1);
		2173	#endif
1415	}	2174	}
1416		2175
1417	ev_io_start (EV_A_ &pipe_w);
1418	ev_unref (EV_A); /* watcher should not keep loop alive */
1419	}
1420	}
1421
1422	inline_speed void
1423	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1424	{
1425	if (!*flag)
1426	{
1427	*flag = 1;
1428
1429	pipe_write_skipped = 1;
1430
1431	if (pipe_write_wanted)
1432	{
1433	int old_errno;
1434
1435	pipe_write_skipped = 0;
1436
1437	old_errno = errno; /* save errno because write will clobber it */
1438
1439	#if EV_USE_EVENTFD
1440	if (evfd >= 0)
1441	{
1442	uint64_t counter = 1;
1443	write (evfd, &counter, sizeof (uint64_t));
1444	}
1445	else
1446	#endif
1447	{
1448	/* win32 people keep sending patches that change this write() to send() */
1449	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1450	/* so when you think this write should be a send instead, please find out */
1451	/* where your send() is from - it's definitely not the microsoft send, and */
1452	/* tell me. thank you. */
1453	write (evpipe [1], &(evpipe [1]), 1);
1454	}
1455
1456	errno = old_errno;	2176	errno = old_errno;
1457	}
1458	}	2177	}
1459	}	2178	}
1460		2179
1461	/* called whenever the libev signal pipe */	2180	/* called whenever the libev signal pipe */
1462	/* got some events (signal, async) */	2181	/* got some events (signal, async) */
…		…
1466	int i;	2185	int i;
1467		2186
1468	if (revents & EV_READ)	2187	if (revents & EV_READ)
1469	{	2188	{
1470	#if EV_USE_EVENTFD	2189	#if EV_USE_EVENTFD
1471	if (evfd >= 0)	2190	if (evpipe [0] < 0)
1472	{	2191	{
1473	uint64_t counter;	2192	uint64_t counter;
1474	read (evfd, &counter, sizeof (uint64_t));	2193	read (evpipe [1], &counter, sizeof (uint64_t));
1475	}	2194	}
1476	else	2195	else
1477	#endif	2196	#endif
1478	{	2197	{
1479	char dummy;	2198	char dummy[4];
1480	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2199	#ifdef _WIN32
		2200	WSABUF buf;
		2201	DWORD recvd;
		2202	DWORD flags = 0;
		2203	buf.buf = dummy;
		2204	buf.len = sizeof (dummy);
		2205	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2206	#else
1481	read (evpipe [0], &dummy, 1);	2207	read (evpipe [0], &dummy, sizeof (dummy));
		2208	#endif
1482	}	2209	}
1483	}	2210	}
1484		2211
1485	pipe_write_skipped = 0;	2212	pipe_write_skipped = 0;
		2213
		2214	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1486		2215
1487	#if EV_SIGNAL_ENABLE	2216	#if EV_SIGNAL_ENABLE
1488	if (sig_pending)	2217	if (sig_pending)
1489	{	2218	{
1490	sig_pending = 0;	2219	sig_pending = 0;
		2220
		2221	ECB_MEMORY_FENCE;
1491		2222
1492	for (i = EV_NSIG - 1; i--; )	2223	for (i = EV_NSIG - 1; i--; )
1493	if (expect_false (signals [i].pending))	2224	if (expect_false (signals [i].pending))
1494	ev_feed_signal_event (EV_A_ i + 1);	2225	ev_feed_signal_event (EV_A_ i + 1);
1495	}	2226	}
…		…
1497		2228
1498	#if EV_ASYNC_ENABLE	2229	#if EV_ASYNC_ENABLE
1499	if (async_pending)	2230	if (async_pending)
1500	{	2231	{
1501	async_pending = 0;	2232	async_pending = 0;
		2233
		2234	ECB_MEMORY_FENCE;
1502		2235
1503	for (i = asynccnt; i--; )	2236	for (i = asynccnt; i--; )
1504	if (asyncs [i]->sent)	2237	if (asyncs [i]->sent)
1505	{	2238	{
1506	asyncs [i]->sent = 0;	2239	asyncs [i]->sent = 0;
		2240	ECB_MEMORY_FENCE_RELEASE;
1507	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2241	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1508	}	2242	}
1509	}	2243	}
1510	#endif	2244	#endif
1511	}	2245	}
1512		2246
1513	/*****************************************************************************/	2247	/*****************************************************************************/
1514		2248
1515	void	2249	void
1516	ev_feed_signal (int signum)	2250	ev_feed_signal (int signum) EV_THROW
1517	{	2251	{
1518	#if EV_MULTIPLICITY	2252	#if EV_MULTIPLICITY
		2253	EV_P;
		2254	ECB_MEMORY_FENCE_ACQUIRE;
1519	EV_P = signals [signum - 1].loop;	2255	EV_A = signals [signum - 1].loop;
1520		2256
1521	if (!EV_A)	2257	if (!EV_A)
1522	return;	2258	return;
1523	#endif	2259	#endif
1524		2260
1525	if (!ev_active (&pipe_w))
1526	return;
1527
1528	signals [signum - 1].pending = 1;	2261	signals [signum - 1].pending = 1;
1529	evpipe_write (EV_A_ &sig_pending);	2262	evpipe_write (EV_A_ &sig_pending);
1530	}	2263	}
1531		2264
1532	static void	2265	static void
…		…
1538		2271
1539	ev_feed_signal (signum);	2272	ev_feed_signal (signum);
1540	}	2273	}
1541		2274
1542	void noinline	2275	void noinline
1543	ev_feed_signal_event (EV_P_ int signum)	2276	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1544	{	2277	{
1545	WL w;	2278	WL w;
1546		2279
1547	if (expect_false (signum <= 0 || signum > EV_NSIG))	2280	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1548	return;	2281	return;
1549		2282
1550	--signum;	2283	--signum;
1551		2284
1552	#if EV_MULTIPLICITY	2285	#if EV_MULTIPLICITY
…		…
1556	if (expect_false (signals [signum].loop != EV_A))	2289	if (expect_false (signals [signum].loop != EV_A))
1557	return;	2290	return;
1558	#endif	2291	#endif
1559		2292
1560	signals [signum].pending = 0;	2293	signals [signum].pending = 0;
		2294	ECB_MEMORY_FENCE_RELEASE;
1561		2295
1562	for (w = signals [signum].head; w; w = w->next)	2296	for (w = signals [signum].head; w; w = w->next)
1563	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2297	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1564	}	2298	}
1565		2299
…		…
1664	#if EV_USE_SELECT	2398	#if EV_USE_SELECT
1665	# include "ev_select.c"	2399	# include "ev_select.c"
1666	#endif	2400	#endif
1667		2401
1668	int ecb_cold	2402	int ecb_cold
1669	ev_version_major (void)	2403	ev_version_major (void) EV_THROW
1670	{	2404	{
1671	return EV_VERSION_MAJOR;	2405	return EV_VERSION_MAJOR;
1672	}	2406	}
1673		2407
1674	int ecb_cold	2408	int ecb_cold
1675	ev_version_minor (void)	2409	ev_version_minor (void) EV_THROW
1676	{	2410	{
1677	return EV_VERSION_MINOR;	2411	return EV_VERSION_MINOR;
1678	}	2412	}
1679		2413
1680	/* return true if we are running with elevated privileges and should ignore env variables */	2414	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
1688	|| getgid () != getegid ();	2422	|| getgid () != getegid ();
1689	#endif	2423	#endif
1690	}	2424	}
1691		2425
1692	unsigned int ecb_cold	2426	unsigned int ecb_cold
1693	ev_supported_backends (void)	2427	ev_supported_backends (void) EV_THROW
1694	{	2428	{
1695	unsigned int flags = 0;	2429	unsigned int flags = 0;
1696		2430
1697	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2431	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1698	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2432	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1702		2436
1703	return flags;	2437	return flags;
1704	}	2438	}
1705		2439
1706	unsigned int ecb_cold	2440	unsigned int ecb_cold
1707	ev_recommended_backends (void)	2441	ev_recommended_backends (void) EV_THROW
1708	{	2442	{
1709	unsigned int flags = ev_supported_backends ();	2443	unsigned int flags = ev_supported_backends ();
1710		2444
1711	#ifndef __NetBSD__	2445	#ifndef __NetBSD__
1712	/* kqueue is borked on everything but netbsd apparently */	2446	/* kqueue is borked on everything but netbsd apparently */
…		…
1724		2458
1725	return flags;	2459	return flags;
1726	}	2460	}
1727		2461
1728	unsigned int ecb_cold	2462	unsigned int ecb_cold
1729	ev_embeddable_backends (void)	2463	ev_embeddable_backends (void) EV_THROW
1730	{	2464	{
1731	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2465	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1732		2466
1733	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2467	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1734	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2468	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1736		2470
1737	return flags;	2471	return flags;
1738	}	2472	}
1739		2473
1740	unsigned int	2474	unsigned int
1741	ev_backend (EV_P)	2475	ev_backend (EV_P) EV_THROW
1742	{	2476	{
1743	return backend;	2477	return backend;
1744	}	2478	}
1745		2479
1746	#if EV_FEATURE_API	2480	#if EV_FEATURE_API
1747	unsigned int	2481	unsigned int
1748	ev_iteration (EV_P)	2482	ev_iteration (EV_P) EV_THROW
1749	{	2483	{
1750	return loop_count;	2484	return loop_count;
1751	}	2485	}
1752		2486
1753	unsigned int	2487	unsigned int
1754	ev_depth (EV_P)	2488	ev_depth (EV_P) EV_THROW
1755	{	2489	{
1756	return loop_depth;	2490	return loop_depth;
1757	}	2491	}
1758		2492
1759	void	2493	void
1760	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2494	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1761	{	2495	{
1762	io_blocktime = interval;	2496	io_blocktime = interval;
1763	}	2497	}
1764		2498
1765	void	2499	void
1766	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2500	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1767	{	2501	{
1768	timeout_blocktime = interval;	2502	timeout_blocktime = interval;
1769	}	2503	}
1770		2504
1771	void	2505	void
1772	ev_set_userdata (EV_P_ void *data)	2506	ev_set_userdata (EV_P_ void *data) EV_THROW
1773	{	2507	{
1774	userdata = data;	2508	userdata = data;
1775	}	2509	}
1776		2510
1777	void *	2511	void *
1778	ev_userdata (EV_P)	2512	ev_userdata (EV_P) EV_THROW
1779	{	2513	{
1780	return userdata;	2514	return userdata;
1781	}	2515	}
1782		2516
1783	void	2517	void
1784	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2518	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1785	{	2519	{
1786	invoke_cb = invoke_pending_cb;	2520	invoke_cb = invoke_pending_cb;
1787	}	2521	}
1788		2522
1789	void	2523	void
1790	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2524	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1791	{	2525	{
1792	release_cb = release;	2526	release_cb = release;
1793	acquire_cb = acquire;	2527	acquire_cb = acquire;
1794	}	2528	}
1795	#endif	2529	#endif
1796		2530
1797	/* initialise a loop structure, must be zero-initialised */	2531	/* initialise a loop structure, must be zero-initialised */
1798	static void noinline ecb_cold	2532	static void noinline ecb_cold
1799	loop_init (EV_P_ unsigned int flags)	2533	loop_init (EV_P_ unsigned int flags) EV_THROW
1800	{	2534	{
1801	if (!backend)	2535	if (!backend)
1802	{	2536	{
1803	origflags = flags;	2537	origflags = flags;
1804		2538
…		…
1849	#if EV_ASYNC_ENABLE	2583	#if EV_ASYNC_ENABLE
1850	async_pending = 0;	2584	async_pending = 0;
1851	#endif	2585	#endif
1852	pipe_write_skipped = 0;	2586	pipe_write_skipped = 0;
1853	pipe_write_wanted = 0;	2587	pipe_write_wanted = 0;
		2588	evpipe [0] = -1;
		2589	evpipe [1] = -1;
1854	#if EV_USE_INOTIFY	2590	#if EV_USE_INOTIFY
1855	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2591	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1856	#endif	2592	#endif
1857	#if EV_USE_SIGNALFD	2593	#if EV_USE_SIGNALFD
1858	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2594	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
1909	EV_INVOKE_PENDING;	2645	EV_INVOKE_PENDING;
1910	}	2646	}
1911	#endif	2647	#endif
1912		2648
1913	#if EV_CHILD_ENABLE	2649	#if EV_CHILD_ENABLE
1914	if (ev_is_active (&childev))	2650	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1915	{	2651	{
1916	ev_ref (EV_A); /* child watcher */	2652	ev_ref (EV_A); /* child watcher */
1917	ev_signal_stop (EV_A_ &childev);	2653	ev_signal_stop (EV_A_ &childev);
1918	}	2654	}
1919	#endif	2655	#endif
…		…
1921	if (ev_is_active (&pipe_w))	2657	if (ev_is_active (&pipe_w))
1922	{	2658	{
1923	/*ev_ref (EV_A);*/	2659	/*ev_ref (EV_A);*/
1924	/*ev_io_stop (EV_A_ &pipe_w);*/	2660	/*ev_io_stop (EV_A_ &pipe_w);*/
1925		2661
1926	#if EV_USE_EVENTFD
1927	if (evfd >= 0)
1928	close (evfd);
1929	#endif
1930
1931	if (evpipe [0] >= 0)
1932	{
1933	EV_WIN32_CLOSE_FD (evpipe [0]);	2662	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1934	EV_WIN32_CLOSE_FD (evpipe [1]);	2663	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1935	}
1936	}	2664	}
1937		2665
1938	#if EV_USE_SIGNALFD	2666	#if EV_USE_SIGNALFD
1939	if (ev_is_active (&sigfd_w))	2667	if (ev_is_active (&sigfd_w))
1940	close (sigfd);	2668	close (sigfd);
…		…
2026	#endif	2754	#endif
2027	#if EV_USE_INOTIFY	2755	#if EV_USE_INOTIFY
2028	infy_fork (EV_A);	2756	infy_fork (EV_A);
2029	#endif	2757	#endif
2030		2758
		2759	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2031	if (ev_is_active (&pipe_w))	2760	if (ev_is_active (&pipe_w))
2032	{	2761	{
2033	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2762	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2034		2763
2035	ev_ref (EV_A);	2764	ev_ref (EV_A);
2036	ev_io_stop (EV_A_ &pipe_w);	2765	ev_io_stop (EV_A_ &pipe_w);
2037		2766
2038	#if EV_USE_EVENTFD
2039	if (evfd >= 0)
2040	close (evfd);
2041	#endif
2042
2043	if (evpipe [0] >= 0)	2767	if (evpipe [0] >= 0)
2044	{
2045	EV_WIN32_CLOSE_FD (evpipe [0]);	2768	EV_WIN32_CLOSE_FD (evpipe [0]);
2046	EV_WIN32_CLOSE_FD (evpipe [1]);
2047	}
2048		2769
2049	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2050	evpipe_init (EV_A);	2770	evpipe_init (EV_A);
2051	/* now iterate over everything, in case we missed something */	2771	/* iterate over everything, in case we missed something before */
2052	pipecb (EV_A_ &pipe_w, EV_READ);	2772	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2053	#endif
2054	}	2773	}
		2774	#endif
2055		2775
2056	postfork = 0;	2776	postfork = 0;
2057	}	2777	}
2058		2778
2059	#if EV_MULTIPLICITY	2779	#if EV_MULTIPLICITY
2060		2780
2061	struct ev_loop * ecb_cold	2781	struct ev_loop * ecb_cold
2062	ev_loop_new (unsigned int flags)	2782	ev_loop_new (unsigned int flags) EV_THROW
2063	{	2783	{
2064	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2784	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2065		2785
2066	memset (EV_A, 0, sizeof (struct ev_loop));	2786	memset (EV_A, 0, sizeof (struct ev_loop));
2067	loop_init (EV_A_ flags);	2787	loop_init (EV_A_ flags);
…		…
2111	}	2831	}
2112	#endif	2832	#endif
2113		2833
2114	#if EV_FEATURE_API	2834	#if EV_FEATURE_API
2115	void ecb_cold	2835	void ecb_cold
2116	ev_verify (EV_P)	2836	ev_verify (EV_P) EV_THROW
2117	{	2837	{
2118	#if EV_VERIFY	2838	#if EV_VERIFY
2119	int i;	2839	int i;
2120	WL w;	2840	WL w, w2;
2121		2841
2122	assert (activecnt >= -1);	2842	assert (activecnt >= -1);
2123		2843
2124	assert (fdchangemax >= fdchangecnt);	2844	assert (fdchangemax >= fdchangecnt);
2125	for (i = 0; i < fdchangecnt; ++i)	2845	for (i = 0; i < fdchangecnt; ++i)
2126	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2846	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2127		2847
2128	assert (anfdmax >= 0);	2848	assert (anfdmax >= 0);
2129	for (i = 0; i < anfdmax; ++i)	2849	for (i = 0; i < anfdmax; ++i)
		2850	{
		2851	int j = 0;
		2852
2130	for (w = anfds [i].head; w; w = w->next)	2853	for (w = w2 = anfds [i].head; w; w = w->next)
2131	{	2854	{
2132	verify_watcher (EV_A_ (W)w);	2855	verify_watcher (EV_A_ (W)w);
		2856
		2857	if (j++ & 1)
		2858	{
		2859	assert (("libev: io watcher list contains a loop", w != w2));
		2860	w2 = w2->next;
		2861	}
		2862
2133	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2863	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2134	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2864	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2135	}	2865	}
		2866	}
2136		2867
2137	assert (timermax >= timercnt);	2868	assert (timermax >= timercnt);
2138	verify_heap (EV_A_ timers, timercnt);	2869	verify_heap (EV_A_ timers, timercnt);
2139		2870
2140	#if EV_PERIODIC_ENABLE	2871	#if EV_PERIODIC_ENABLE
…		…
2190	#if EV_MULTIPLICITY	2921	#if EV_MULTIPLICITY
2191	struct ev_loop * ecb_cold	2922	struct ev_loop * ecb_cold
2192	#else	2923	#else
2193	int	2924	int
2194	#endif	2925	#endif
2195	ev_default_loop (unsigned int flags)	2926	ev_default_loop (unsigned int flags) EV_THROW
2196	{	2927	{
2197	if (!ev_default_loop_ptr)	2928	if (!ev_default_loop_ptr)
2198	{	2929	{
2199	#if EV_MULTIPLICITY	2930	#if EV_MULTIPLICITY
2200	EV_P = ev_default_loop_ptr = &default_loop_struct;	2931	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2219		2950
2220	return ev_default_loop_ptr;	2951	return ev_default_loop_ptr;
2221	}	2952	}
2222		2953
2223	void	2954	void
2224	ev_loop_fork (EV_P)	2955	ev_loop_fork (EV_P) EV_THROW
2225	{	2956	{
2226	postfork = 1; /* must be in line with ev_default_fork */	2957	postfork = 1;
2227	}	2958	}
2228		2959
2229	/*****************************************************************************/	2960	/*****************************************************************************/
2230		2961
2231	void	2962	void
…		…
2233	{	2964	{
2234	EV_CB_INVOKE ((W)w, revents);	2965	EV_CB_INVOKE ((W)w, revents);
2235	}	2966	}
2236		2967
2237	unsigned int	2968	unsigned int
2238	ev_pending_count (EV_P)	2969	ev_pending_count (EV_P) EV_THROW
2239	{	2970	{
2240	int pri;	2971	int pri;
2241	unsigned int count = 0;	2972	unsigned int count = 0;
2242		2973
2243	for (pri = NUMPRI; pri--; )	2974	for (pri = NUMPRI; pri--; )
…		…
2247	}	2978	}
2248		2979
2249	void noinline	2980	void noinline
2250	ev_invoke_pending (EV_P)	2981	ev_invoke_pending (EV_P)
2251	{	2982	{
2252	int pri;	2983	pendingpri = NUMPRI;
2253		2984
2254	for (pri = NUMPRI; pri--; )	2985	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2986	{
		2987	--pendingpri;
		2988
2255	while (pendingcnt [pri])	2989	while (pendingcnt [pendingpri])
2256	{	2990	{
2257	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2991	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2258		2992
2259	p->w->pending = 0;	2993	p->w->pending = 0;
2260	EV_CB_INVOKE (p->w, p->events);	2994	EV_CB_INVOKE (p->w, p->events);
2261	EV_FREQUENT_CHECK;	2995	EV_FREQUENT_CHECK;
2262	}	2996	}
		2997	}
2263	}	2998	}
2264		2999
2265	#if EV_IDLE_ENABLE	3000	#if EV_IDLE_ENABLE
2266	/* make idle watchers pending. this handles the "call-idle */	3001	/* make idle watchers pending. this handles the "call-idle */
2267	/* only when higher priorities are idle" logic */	3002	/* only when higher priorities are idle" logic */
…		…
2357	{	3092	{
2358	EV_FREQUENT_CHECK;	3093	EV_FREQUENT_CHECK;
2359		3094
2360	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3095	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2361	{	3096	{
2362	int feed_count = 0;
2363
2364	do	3097	do
2365	{	3098	{
2366	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3099	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2367		3100
2368	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3101	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2502		3235
2503	mn_now = ev_rt_now;	3236	mn_now = ev_rt_now;
2504	}	3237	}
2505	}	3238	}
2506		3239
2507	void	3240	int
2508	ev_run (EV_P_ int flags)	3241	ev_run (EV_P_ int flags)
2509	{	3242	{
2510	#if EV_FEATURE_API	3243	#if EV_FEATURE_API
2511	++loop_depth;	3244	++loop_depth;
2512	#endif	3245	#endif
…		…
2573	time_update (EV_A_ 1e100);	3306	time_update (EV_A_ 1e100);
2574		3307
2575	/* from now on, we want a pipe-wake-up */	3308	/* from now on, we want a pipe-wake-up */
2576	pipe_write_wanted = 1;	3309	pipe_write_wanted = 1;
2577		3310
		3311	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3312
2578	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3313	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2579	{	3314	{
2580	waittime = MAX_BLOCKTIME;	3315	waittime = MAX_BLOCKTIME;
2581		3316
2582	if (timercnt)	3317	if (timercnt)
…		…
2623	#endif	3358	#endif
2624	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3359	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2625	backend_poll (EV_A_ waittime);	3360	backend_poll (EV_A_ waittime);
2626	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3361	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2627		3362
2628	pipe_write_wanted = 0;	3363	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2629		3364
		3365	ECB_MEMORY_FENCE_ACQUIRE;
2630	if (pipe_write_skipped)	3366	if (pipe_write_skipped)
2631	{	3367	{
2632	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3368	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2633	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3369	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2634	}	3370	}
…		…
2667	loop_done = EVBREAK_CANCEL;	3403	loop_done = EVBREAK_CANCEL;
2668		3404
2669	#if EV_FEATURE_API	3405	#if EV_FEATURE_API
2670	--loop_depth;	3406	--loop_depth;
2671	#endif	3407	#endif
		3408
		3409	return activecnt;
2672	}	3410	}
2673		3411
2674	void	3412	void
2675	ev_break (EV_P_ int how)	3413	ev_break (EV_P_ int how) EV_THROW
2676	{	3414	{
2677	loop_done = how;	3415	loop_done = how;
2678	}	3416	}
2679		3417
2680	void	3418	void
2681	ev_ref (EV_P)	3419	ev_ref (EV_P) EV_THROW
2682	{	3420	{
2683	++activecnt;	3421	++activecnt;
2684	}	3422	}
2685		3423
2686	void	3424	void
2687	ev_unref (EV_P)	3425	ev_unref (EV_P) EV_THROW
2688	{	3426	{
2689	--activecnt;	3427	--activecnt;
2690	}	3428	}
2691		3429
2692	void	3430	void
2693	ev_now_update (EV_P)	3431	ev_now_update (EV_P) EV_THROW
2694	{	3432	{
2695	time_update (EV_A_ 1e100);	3433	time_update (EV_A_ 1e100);
2696	}	3434	}
2697		3435
2698	void	3436	void
2699	ev_suspend (EV_P)	3437	ev_suspend (EV_P) EV_THROW
2700	{	3438	{
2701	ev_now_update (EV_A);	3439	ev_now_update (EV_A);
2702	}	3440	}
2703		3441
2704	void	3442	void
2705	ev_resume (EV_P)	3443	ev_resume (EV_P) EV_THROW
2706	{	3444	{
2707	ev_tstamp mn_prev = mn_now;	3445	ev_tstamp mn_prev = mn_now;
2708		3446
2709	ev_now_update (EV_A);	3447	ev_now_update (EV_A);
2710	timers_reschedule (EV_A_ mn_now - mn_prev);	3448	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2749	w->pending = 0;	3487	w->pending = 0;
2750	}	3488	}
2751	}	3489	}
2752		3490
2753	int	3491	int
2754	ev_clear_pending (EV_P_ void *w)	3492	ev_clear_pending (EV_P_ void *w) EV_THROW
2755	{	3493	{
2756	W w_ = (W)w;	3494	W w_ = (W)w;
2757	int pending = w_->pending;	3495	int pending = w_->pending;
2758		3496
2759	if (expect_true (pending))	3497	if (expect_true (pending))
…		…
2792	}	3530	}
2793		3531
2794	/*****************************************************************************/	3532	/*****************************************************************************/
2795		3533
2796	void noinline	3534	void noinline
2797	ev_io_start (EV_P_ ev_io *w)	3535	ev_io_start (EV_P_ ev_io *w) EV_THROW
2798	{	3536	{
2799	int fd = w->fd;	3537	int fd = w->fd;
2800		3538
2801	if (expect_false (ev_is_active (w)))	3539	if (expect_false (ev_is_active (w)))
2802	return;	3540	return;
…		…
2808		3546
2809	ev_start (EV_A_ (W)w, 1);	3547	ev_start (EV_A_ (W)w, 1);
2810	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3548	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2811	wlist_add (&anfds[fd].head, (WL)w);	3549	wlist_add (&anfds[fd].head, (WL)w);
2812		3550
		3551	/* common bug, apparently */
		3552	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3553
2813	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3554	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2814	w->events &= ~EV__IOFDSET;	3555	w->events &= ~EV__IOFDSET;
2815		3556
2816	EV_FREQUENT_CHECK;	3557	EV_FREQUENT_CHECK;
2817	}	3558	}
2818		3559
2819	void noinline	3560	void noinline
2820	ev_io_stop (EV_P_ ev_io *w)	3561	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2821	{	3562	{
2822	clear_pending (EV_A_ (W)w);	3563	clear_pending (EV_A_ (W)w);
2823	if (expect_false (!ev_is_active (w)))	3564	if (expect_false (!ev_is_active (w)))
2824	return;	3565	return;
2825		3566
…		…
2834		3575
2835	EV_FREQUENT_CHECK;	3576	EV_FREQUENT_CHECK;
2836	}	3577	}
2837		3578
2838	void noinline	3579	void noinline
2839	ev_timer_start (EV_P_ ev_timer *w)	3580	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2840	{	3581	{
2841	if (expect_false (ev_is_active (w)))	3582	if (expect_false (ev_is_active (w)))
2842	return;	3583	return;
2843		3584
2844	ev_at (w) += mn_now;	3585	ev_at (w) += mn_now;
…		…
2858		3599
2859	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3600	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2860	}	3601	}
2861		3602
2862	void noinline	3603	void noinline
2863	ev_timer_stop (EV_P_ ev_timer *w)	3604	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2864	{	3605	{
2865	clear_pending (EV_A_ (W)w);	3606	clear_pending (EV_A_ (W)w);
2866	if (expect_false (!ev_is_active (w)))	3607	if (expect_false (!ev_is_active (w)))
2867	return;	3608	return;
2868		3609
…		…
2888		3629
2889	EV_FREQUENT_CHECK;	3630	EV_FREQUENT_CHECK;
2890	}	3631	}
2891		3632
2892	void noinline	3633	void noinline
2893	ev_timer_again (EV_P_ ev_timer *w)	3634	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2894	{	3635	{
2895	EV_FREQUENT_CHECK;	3636	EV_FREQUENT_CHECK;
		3637
		3638	clear_pending (EV_A_ (W)w);
2896		3639
2897	if (ev_is_active (w))	3640	if (ev_is_active (w))
2898	{	3641	{
2899	if (w->repeat)	3642	if (w->repeat)
2900	{	3643	{
…		…
2913		3656
2914	EV_FREQUENT_CHECK;	3657	EV_FREQUENT_CHECK;
2915	}	3658	}
2916		3659
2917	ev_tstamp	3660	ev_tstamp
2918	ev_timer_remaining (EV_P_ ev_timer *w)	3661	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2919	{	3662	{
2920	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3663	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2921	}	3664	}
2922		3665
2923	#if EV_PERIODIC_ENABLE	3666	#if EV_PERIODIC_ENABLE
2924	void noinline	3667	void noinline
2925	ev_periodic_start (EV_P_ ev_periodic *w)	3668	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2926	{	3669	{
2927	if (expect_false (ev_is_active (w)))	3670	if (expect_false (ev_is_active (w)))
2928	return;	3671	return;
2929		3672
2930	if (w->reschedule_cb)	3673	if (w->reschedule_cb)
…		…
2950		3693
2951	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3694	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2952	}	3695	}
2953		3696
2954	void noinline	3697	void noinline
2955	ev_periodic_stop (EV_P_ ev_periodic *w)	3698	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2956	{	3699	{
2957	clear_pending (EV_A_ (W)w);	3700	clear_pending (EV_A_ (W)w);
2958	if (expect_false (!ev_is_active (w)))	3701	if (expect_false (!ev_is_active (w)))
2959	return;	3702	return;
2960		3703
…		…
2978		3721
2979	EV_FREQUENT_CHECK;	3722	EV_FREQUENT_CHECK;
2980	}	3723	}
2981		3724
2982	void noinline	3725	void noinline
2983	ev_periodic_again (EV_P_ ev_periodic *w)	3726	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2984	{	3727	{
2985	/* TODO: use adjustheap and recalculation */	3728	/* TODO: use adjustheap and recalculation */
2986	ev_periodic_stop (EV_A_ w);	3729	ev_periodic_stop (EV_A_ w);
2987	ev_periodic_start (EV_A_ w);	3730	ev_periodic_start (EV_A_ w);
2988	}	3731	}
…		…
2993	#endif	3736	#endif
2994		3737
2995	#if EV_SIGNAL_ENABLE	3738	#if EV_SIGNAL_ENABLE
2996		3739
2997	void noinline	3740	void noinline
2998	ev_signal_start (EV_P_ ev_signal *w)	3741	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2999	{	3742	{
3000	if (expect_false (ev_is_active (w)))	3743	if (expect_false (ev_is_active (w)))
3001	return;	3744	return;
3002		3745
3003	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3746	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3005	#if EV_MULTIPLICITY	3748	#if EV_MULTIPLICITY
3006	assert (("libev: a signal must not be attached to two different loops",	3749	assert (("libev: a signal must not be attached to two different loops",
3007	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3750	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3008		3751
3009	signals [w->signum - 1].loop = EV_A;	3752	signals [w->signum - 1].loop = EV_A;
		3753	ECB_MEMORY_FENCE_RELEASE;
3010	#endif	3754	#endif
3011		3755
3012	EV_FREQUENT_CHECK;	3756	EV_FREQUENT_CHECK;
3013		3757
3014	#if EV_USE_SIGNALFD	3758	#if EV_USE_SIGNALFD
…		…
3074		3818
3075	EV_FREQUENT_CHECK;	3819	EV_FREQUENT_CHECK;
3076	}	3820	}
3077		3821
3078	void noinline	3822	void noinline
3079	ev_signal_stop (EV_P_ ev_signal *w)	3823	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3080	{	3824	{
3081	clear_pending (EV_A_ (W)w);	3825	clear_pending (EV_A_ (W)w);
3082	if (expect_false (!ev_is_active (w)))	3826	if (expect_false (!ev_is_active (w)))
3083	return;	3827	return;
3084		3828
…		…
3115	#endif	3859	#endif
3116		3860
3117	#if EV_CHILD_ENABLE	3861	#if EV_CHILD_ENABLE
3118		3862
3119	void	3863	void
3120	ev_child_start (EV_P_ ev_child *w)	3864	ev_child_start (EV_P_ ev_child *w) EV_THROW
3121	{	3865	{
3122	#if EV_MULTIPLICITY	3866	#if EV_MULTIPLICITY
3123	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3867	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3124	#endif	3868	#endif
3125	if (expect_false (ev_is_active (w)))	3869	if (expect_false (ev_is_active (w)))
…		…
3132		3876
3133	EV_FREQUENT_CHECK;	3877	EV_FREQUENT_CHECK;
3134	}	3878	}
3135		3879
3136	void	3880	void
3137	ev_child_stop (EV_P_ ev_child *w)	3881	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3138	{	3882	{
3139	clear_pending (EV_A_ (W)w);	3883	clear_pending (EV_A_ (W)w);
3140	if (expect_false (!ev_is_active (w)))	3884	if (expect_false (!ev_is_active (w)))
3141	return;	3885	return;
3142		3886
…		…
3169	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3913	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3170		3914
3171	static void noinline	3915	static void noinline
3172	infy_add (EV_P_ ev_stat *w)	3916	infy_add (EV_P_ ev_stat *w)
3173	{	3917	{
3174	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);	3918	w->wd = inotify_add_watch (fs_fd, w->path,
		3919	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3920	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3921	| IN_DONT_FOLLOW | IN_MASK_ADD);
3175		3922
3176	if (w->wd >= 0)	3923	if (w->wd >= 0)
3177	{	3924	{
3178	struct statfs sfs;	3925	struct statfs sfs;
3179		3926
…		…
3183		3930
3184	if (!fs_2625)	3931	if (!fs_2625)
3185	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3932	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3186	else if (!statfs (w->path, &sfs)	3933	else if (!statfs (w->path, &sfs)
3187	&& (sfs.f_type == 0x1373 /* devfs */	3934	&& (sfs.f_type == 0x1373 /* devfs */
		3935	|| sfs.f_type == 0x4006 /* fat */
		3936	|| sfs.f_type == 0x4d44 /* msdos */
3188	|| sfs.f_type == 0xEF53 /* ext2/3 */	3937	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3938	|| sfs.f_type == 0x72b6 /* jffs2 */
		3939	|| sfs.f_type == 0x858458f6 /* ramfs */
		3940	|| sfs.f_type == 0x5346544e /* ntfs */
3189	|| sfs.f_type == 0x3153464a /* jfs */	3941	|| sfs.f_type == 0x3153464a /* jfs */
		3942	|| sfs.f_type == 0x9123683e /* btrfs */
3190	|| sfs.f_type == 0x52654973 /* reiser3 */	3943	|| sfs.f_type == 0x52654973 /* reiser3 */
3191	|| sfs.f_type == 0x01021994 /* tempfs */	3944	|| sfs.f_type == 0x01021994 /* tmpfs */
3192	|| sfs.f_type == 0x58465342 /* xfs */))	3945	|| sfs.f_type == 0x58465342 /* xfs */))
3193	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3946	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3194	else	3947	else
3195	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3948	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3196	}	3949	}
…		…
3309	}	4062	}
3310		4063
3311	inline_size int	4064	inline_size int
3312	infy_newfd (void)	4065	infy_newfd (void)
3313	{	4066	{
3314	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4067	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3315	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4068	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3316	if (fd >= 0)	4069	if (fd >= 0)
3317	return fd;	4070	return fd;
3318	#endif	4071	#endif
3319	return inotify_init ();	4072	return inotify_init ();
…		…
3394	#else	4147	#else
3395	# define EV_LSTAT(p,b) lstat (p, b)	4148	# define EV_LSTAT(p,b) lstat (p, b)
3396	#endif	4149	#endif
3397		4150
3398	void	4151	void
3399	ev_stat_stat (EV_P_ ev_stat *w)	4152	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3400	{	4153	{
3401	if (lstat (w->path, &w->attr) < 0)	4154	if (lstat (w->path, &w->attr) < 0)
3402	w->attr.st_nlink = 0;	4155	w->attr.st_nlink = 0;
3403	else if (!w->attr.st_nlink)	4156	else if (!w->attr.st_nlink)
3404	w->attr.st_nlink = 1;	4157	w->attr.st_nlink = 1;
…		…
3443	ev_feed_event (EV_A_ w, EV_STAT);	4196	ev_feed_event (EV_A_ w, EV_STAT);
3444	}	4197	}
3445	}	4198	}
3446		4199
3447	void	4200	void
3448	ev_stat_start (EV_P_ ev_stat *w)	4201	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3449	{	4202	{
3450	if (expect_false (ev_is_active (w)))	4203	if (expect_false (ev_is_active (w)))
3451	return;	4204	return;
3452		4205
3453	ev_stat_stat (EV_A_ w);	4206	ev_stat_stat (EV_A_ w);
…		…
3474		4227
3475	EV_FREQUENT_CHECK;	4228	EV_FREQUENT_CHECK;
3476	}	4229	}
3477		4230
3478	void	4231	void
3479	ev_stat_stop (EV_P_ ev_stat *w)	4232	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3480	{	4233	{
3481	clear_pending (EV_A_ (W)w);	4234	clear_pending (EV_A_ (W)w);
3482	if (expect_false (!ev_is_active (w)))	4235	if (expect_false (!ev_is_active (w)))
3483	return;	4236	return;
3484		4237
…		…
3500	}	4253	}
3501	#endif	4254	#endif
3502		4255
3503	#if EV_IDLE_ENABLE	4256	#if EV_IDLE_ENABLE
3504	void	4257	void
3505	ev_idle_start (EV_P_ ev_idle *w)	4258	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3506	{	4259	{
3507	if (expect_false (ev_is_active (w)))	4260	if (expect_false (ev_is_active (w)))
3508	return;	4261	return;
3509		4262
3510	pri_adjust (EV_A_ (W)w);	4263	pri_adjust (EV_A_ (W)w);
…		…
3523		4276
3524	EV_FREQUENT_CHECK;	4277	EV_FREQUENT_CHECK;
3525	}	4278	}
3526		4279
3527	void	4280	void
3528	ev_idle_stop (EV_P_ ev_idle *w)	4281	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3529	{	4282	{
3530	clear_pending (EV_A_ (W)w);	4283	clear_pending (EV_A_ (W)w);
3531	if (expect_false (!ev_is_active (w)))	4284	if (expect_false (!ev_is_active (w)))
3532	return;	4285	return;
3533		4286
…		…
3547	}	4300	}
3548	#endif	4301	#endif
3549		4302
3550	#if EV_PREPARE_ENABLE	4303	#if EV_PREPARE_ENABLE
3551	void	4304	void
3552	ev_prepare_start (EV_P_ ev_prepare *w)	4305	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3553	{	4306	{
3554	if (expect_false (ev_is_active (w)))	4307	if (expect_false (ev_is_active (w)))
3555	return;	4308	return;
3556		4309
3557	EV_FREQUENT_CHECK;	4310	EV_FREQUENT_CHECK;
…		…
3562		4315
3563	EV_FREQUENT_CHECK;	4316	EV_FREQUENT_CHECK;
3564	}	4317	}
3565		4318
3566	void	4319	void
3567	ev_prepare_stop (EV_P_ ev_prepare *w)	4320	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3568	{	4321	{
3569	clear_pending (EV_A_ (W)w);	4322	clear_pending (EV_A_ (W)w);
3570	if (expect_false (!ev_is_active (w)))	4323	if (expect_false (!ev_is_active (w)))
3571	return;	4324	return;
3572		4325
…		…
3585	}	4338	}
3586	#endif	4339	#endif
3587		4340
3588	#if EV_CHECK_ENABLE	4341	#if EV_CHECK_ENABLE
3589	void	4342	void
3590	ev_check_start (EV_P_ ev_check *w)	4343	ev_check_start (EV_P_ ev_check *w) EV_THROW
3591	{	4344	{
3592	if (expect_false (ev_is_active (w)))	4345	if (expect_false (ev_is_active (w)))
3593	return;	4346	return;
3594		4347
3595	EV_FREQUENT_CHECK;	4348	EV_FREQUENT_CHECK;
…		…
3600		4353
3601	EV_FREQUENT_CHECK;	4354	EV_FREQUENT_CHECK;
3602	}	4355	}
3603		4356
3604	void	4357	void
3605	ev_check_stop (EV_P_ ev_check *w)	4358	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3606	{	4359	{
3607	clear_pending (EV_A_ (W)w);	4360	clear_pending (EV_A_ (W)w);
3608	if (expect_false (!ev_is_active (w)))	4361	if (expect_false (!ev_is_active (w)))
3609	return;	4362	return;
3610		4363
…		…
3623	}	4376	}
3624	#endif	4377	#endif
3625		4378
3626	#if EV_EMBED_ENABLE	4379	#if EV_EMBED_ENABLE
3627	void noinline	4380	void noinline
3628	ev_embed_sweep (EV_P_ ev_embed *w)	4381	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3629	{	4382	{
3630	ev_run (w->other, EVRUN_NOWAIT);	4383	ev_run (w->other, EVRUN_NOWAIT);
3631	}	4384	}
3632		4385
3633	static void	4386	static void
…		…
3681	ev_idle_stop (EV_A_ idle);	4434	ev_idle_stop (EV_A_ idle);
3682	}	4435	}
3683	#endif	4436	#endif
3684		4437
3685	void	4438	void
3686	ev_embed_start (EV_P_ ev_embed *w)	4439	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3687	{	4440	{
3688	if (expect_false (ev_is_active (w)))	4441	if (expect_false (ev_is_active (w)))
3689	return;	4442	return;
3690		4443
3691	{	4444	{
…		…
3712		4465
3713	EV_FREQUENT_CHECK;	4466	EV_FREQUENT_CHECK;
3714	}	4467	}
3715		4468
3716	void	4469	void
3717	ev_embed_stop (EV_P_ ev_embed *w)	4470	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3718	{	4471	{
3719	clear_pending (EV_A_ (W)w);	4472	clear_pending (EV_A_ (W)w);
3720	if (expect_false (!ev_is_active (w)))	4473	if (expect_false (!ev_is_active (w)))
3721	return;	4474	return;
3722		4475
…		…
3732	}	4485	}
3733	#endif	4486	#endif
3734		4487
3735	#if EV_FORK_ENABLE	4488	#if EV_FORK_ENABLE
3736	void	4489	void
3737	ev_fork_start (EV_P_ ev_fork *w)	4490	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3738	{	4491	{
3739	if (expect_false (ev_is_active (w)))	4492	if (expect_false (ev_is_active (w)))
3740	return;	4493	return;
3741		4494
3742	EV_FREQUENT_CHECK;	4495	EV_FREQUENT_CHECK;
…		…
3747		4500
3748	EV_FREQUENT_CHECK;	4501	EV_FREQUENT_CHECK;
3749	}	4502	}
3750		4503
3751	void	4504	void
3752	ev_fork_stop (EV_P_ ev_fork *w)	4505	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3753	{	4506	{
3754	clear_pending (EV_A_ (W)w);	4507	clear_pending (EV_A_ (W)w);
3755	if (expect_false (!ev_is_active (w)))	4508	if (expect_false (!ev_is_active (w)))
3756	return;	4509	return;
3757		4510
…		…
3770	}	4523	}
3771	#endif	4524	#endif
3772		4525
3773	#if EV_CLEANUP_ENABLE	4526	#if EV_CLEANUP_ENABLE
3774	void	4527	void
3775	ev_cleanup_start (EV_P_ ev_cleanup *w)	4528	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3776	{	4529	{
3777	if (expect_false (ev_is_active (w)))	4530	if (expect_false (ev_is_active (w)))
3778	return;	4531	return;
3779		4532
3780	EV_FREQUENT_CHECK;	4533	EV_FREQUENT_CHECK;
…		…
3787	ev_unref (EV_A);	4540	ev_unref (EV_A);
3788	EV_FREQUENT_CHECK;	4541	EV_FREQUENT_CHECK;
3789	}	4542	}
3790		4543
3791	void	4544	void
3792	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4545	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3793	{	4546	{
3794	clear_pending (EV_A_ (W)w);	4547	clear_pending (EV_A_ (W)w);
3795	if (expect_false (!ev_is_active (w)))	4548	if (expect_false (!ev_is_active (w)))
3796	return;	4549	return;
3797		4550
…		…
3811	}	4564	}
3812	#endif	4565	#endif
3813		4566
3814	#if EV_ASYNC_ENABLE	4567	#if EV_ASYNC_ENABLE
3815	void	4568	void
3816	ev_async_start (EV_P_ ev_async *w)	4569	ev_async_start (EV_P_ ev_async *w) EV_THROW
3817	{	4570	{
3818	if (expect_false (ev_is_active (w)))	4571	if (expect_false (ev_is_active (w)))
3819	return;	4572	return;
3820		4573
3821	w->sent = 0;	4574	w->sent = 0;
…		…
3830		4583
3831	EV_FREQUENT_CHECK;	4584	EV_FREQUENT_CHECK;
3832	}	4585	}
3833		4586
3834	void	4587	void
3835	ev_async_stop (EV_P_ ev_async *w)	4588	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3836	{	4589	{
3837	clear_pending (EV_A_ (W)w);	4590	clear_pending (EV_A_ (W)w);
3838	if (expect_false (!ev_is_active (w)))	4591	if (expect_false (!ev_is_active (w)))
3839	return;	4592	return;
3840		4593
…		…
3851		4604
3852	EV_FREQUENT_CHECK;	4605	EV_FREQUENT_CHECK;
3853	}	4606	}
3854		4607
3855	void	4608	void
3856	ev_async_send (EV_P_ ev_async *w)	4609	ev_async_send (EV_P_ ev_async *w) EV_THROW
3857	{	4610	{
3858	w->sent = 1;	4611	w->sent = 1;
3859	evpipe_write (EV_A_ &async_pending);	4612	evpipe_write (EV_A_ &async_pending);
3860	}	4613	}
3861	#endif	4614	#endif
…		…
3898		4651
3899	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4652	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3900	}	4653	}
3901		4654
3902	void	4655	void
3903	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4656	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3904	{	4657	{
3905	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4658	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3906		4659
3907	if (expect_false (!once))	4660	if (expect_false (!once))
3908	{	4661	{
…		…
3930		4683
3931	/*****************************************************************************/	4684	/*****************************************************************************/
3932		4685
3933	#if EV_WALK_ENABLE	4686	#if EV_WALK_ENABLE
3934	void ecb_cold	4687	void ecb_cold
3935	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4688	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3936	{	4689	{
3937	int i, j;	4690	int i, j;
3938	ev_watcher_list *wl, *wn;	4691	ev_watcher_list *wl, *wn;
3939		4692
3940	if (types & (EV_IO | EV_EMBED))	4693	if (types & (EV_IO | EV_EMBED))
…		…
3983	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4736	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3984	#endif	4737	#endif
3985		4738
3986	#if EV_IDLE_ENABLE	4739	#if EV_IDLE_ENABLE
3987	if (types & EV_IDLE)	4740	if (types & EV_IDLE)
3988	for (j = NUMPRI; i--; )	4741	for (j = NUMPRI; j--; )
3989	for (i = idlecnt [j]; i--; )	4742	for (i = idlecnt [j]; i--; )
3990	cb (EV_A_ EV_IDLE, idles [j][i]);	4743	cb (EV_A_ EV_IDLE, idles [j][i]);
3991	#endif	4744	#endif
3992		4745
3993	#if EV_FORK_ENABLE	4746	#if EV_FORK_ENABLE
…		…
4046		4799
4047	#if EV_MULTIPLICITY	4800	#if EV_MULTIPLICITY
4048	#include "ev_wrap.h"	4801	#include "ev_wrap.h"
4049	#endif	4802	#endif
4050		4803
4051	EV_CPP(})
4052

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