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Comparing libev/ev.c (file contents):
Revision 1.399 by root, Mon Sep 26 12:32:21 2011 UTC vs.
Revision 1.490 by root, Thu Jun 20 22:44:59 2019 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) 2007-2019 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	*
…		…
43	# include EV_CONFIG_H	43	# include EV_CONFIG_H
44	# else	44	# else
45	# include "config.h"	45	# include "config.h"
46	# endif	46	# endif
47		47
48	#if HAVE_FLOOR	48	# if HAVE_FLOOR
49	# ifndef EV_USE_FLOOR	49	# ifndef EV_USE_FLOOR
50	# define EV_USE_FLOOR 1	50	# define EV_USE_FLOOR 1
		51	# endif
51	# endif	52	# endif
52	#endif
53		53
54	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
55	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
56	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
57	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
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
…		…
162	# define EV_USE_EVENTFD 0	162	# define EV_USE_EVENTFD 0
163	# endif	163	# endif
164		164
165	#endif	165	#endif
166		166
		167	/* OS X, in its infinite idiocy, actually HARDCODES
		168	* a limit of 1024 into their select. Where people have brains,
		169	* OS X engineers apparently have a vacuum. Or maybe they were
		170	* ordered to have a vacuum, or they do anything for money.
		171	* This might help. Or not.
		172	* Note that this must be defined early, as other include files
		173	* will rely on this define as well.
		174	*/
		175	#define _DARWIN_UNLIMITED_SELECT 1
		176
167	#include <stdlib.h>	177	#include <stdlib.h>
168	#include <string.h>	178	#include <string.h>
169	#include <fcntl.h>	179	#include <fcntl.h>
170	#include <stddef.h>	180	#include <stddef.h>
171		181
…		…
183	# include EV_H	193	# include EV_H
184	#else	194	#else
185	# include "ev.h"	195	# include "ev.h"
186	#endif	196	#endif
187		197
		198	#if EV_NO_THREADS
		199	# undef EV_NO_SMP
		200	# define EV_NO_SMP 1
		201	# undef ECB_NO_THREADS
		202	# define ECB_NO_THREADS 1
		203	#endif
		204	#if EV_NO_SMP
		205	# undef EV_NO_SMP
		206	# define ECB_NO_SMP 1
		207	#endif
		208
188	#ifndef _WIN32	209	#ifndef _WIN32
189	# include <sys/time.h>	210	# include <sys/time.h>
190	# include <sys/wait.h>	211	# include <sys/wait.h>
191	# include <unistd.h>	212	# include <unistd.h>
192	#else	213	#else
193	# include <io.h>	214	# include <io.h>
194	# define WIN32_LEAN_AND_MEAN	215	# define WIN32_LEAN_AND_MEAN
		216	# include <winsock2.h>
195	# include <windows.h>	217	# include <windows.h>
196	# ifndef EV_SELECT_IS_WINSOCKET	218	# ifndef EV_SELECT_IS_WINSOCKET
197	# define EV_SELECT_IS_WINSOCKET 1	219	# define EV_SELECT_IS_WINSOCKET 1
198	# endif	220	# endif
199	# undef EV_AVOID_STDIO	221	# undef EV_AVOID_STDIO
200	#endif	222	#endif
201		223
202	/* OS X, in its infinite idiocy, actually HARDCODES
203	* a limit of 1024 into their select. Where people have brains,
204	* OS X engineers apparently have a vacuum. Or maybe they were
205	* ordered to have a vacuum, or they do anything for money.
206	* This might help. Or not.
207	*/
208	#define _DARWIN_UNLIMITED_SELECT 1
209
210	/* this block tries to deduce configuration from header-defined symbols and defaults */	224	/* this block tries to deduce configuration from header-defined symbols and defaults */
211		225
212	/* try to deduce the maximum number of signals on this platform */	226	/* try to deduce the maximum number of signals on this platform */
213	#if defined (EV_NSIG)	227	#if defined EV_NSIG
214	/* use what's provided */	228	/* use what's provided */
215	#elif defined (NSIG)	229	#elif defined NSIG
216	# define EV_NSIG (NSIG)	230	# define EV_NSIG (NSIG)
217	#elif defined(_NSIG)	231	#elif defined _NSIG
218	# define EV_NSIG (_NSIG)	232	# define EV_NSIG (_NSIG)
219	#elif defined (SIGMAX)	233	#elif defined SIGMAX
220	# define EV_NSIG (SIGMAX+1)	234	# define EV_NSIG (SIGMAX+1)
221	#elif defined (SIG_MAX)	235	#elif defined SIG_MAX
222	# define EV_NSIG (SIG_MAX+1)	236	# define EV_NSIG (SIG_MAX+1)
223	#elif defined (_SIG_MAX)	237	#elif defined _SIG_MAX
224	# define EV_NSIG (_SIG_MAX+1)	238	# define EV_NSIG (_SIG_MAX+1)
225	#elif defined (MAXSIG)	239	#elif defined MAXSIG
226	# define EV_NSIG (MAXSIG+1)	240	# define EV_NSIG (MAXSIG+1)
227	#elif defined (MAX_SIG)	241	#elif defined MAX_SIG
228	# define EV_NSIG (MAX_SIG+1)	242	# define EV_NSIG (MAX_SIG+1)
229	#elif defined (SIGARRAYSIZE)	243	#elif defined SIGARRAYSIZE
230	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	244	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231	#elif defined (_sys_nsig)	245	#elif defined _sys_nsig
232	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	246	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233	#else	247	#else
234	# error "unable to find value for NSIG, please report"	248	# define EV_NSIG (8 * sizeof (sigset_t) + 1)
235	/* to make it compile regardless, just remove the above line, */
236	/* but consider reporting it, too! :) */
237	# define EV_NSIG 65
238	#endif	249	#endif
239		250
240	#ifndef EV_USE_FLOOR	251	#ifndef EV_USE_FLOOR
241	# define EV_USE_FLOOR 0	252	# define EV_USE_FLOOR 0
242	#endif	253	#endif
243		254
244	#ifndef EV_USE_CLOCK_SYSCALL	255	#ifndef EV_USE_CLOCK_SYSCALL
245	# if __linux && __GLIBC__ >= 2	256	# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
246	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	257	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
247	# else	258	# else
248	# define EV_USE_CLOCK_SYSCALL 0	259	# define EV_USE_CLOCK_SYSCALL 0
249	# endif	260	# endif
250	#endif	261	#endif
251		262
		263	#if !(_POSIX_TIMERS > 0)
		264	# ifndef EV_USE_MONOTONIC
		265	# define EV_USE_MONOTONIC 0
		266	# endif
		267	# ifndef EV_USE_REALTIME
		268	# define EV_USE_REALTIME 0
		269	# endif
		270	#endif
		271
252	#ifndef EV_USE_MONOTONIC	272	#ifndef EV_USE_MONOTONIC
253	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	273	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254	# define EV_USE_MONOTONIC EV_FEATURE_OS	274	# define EV_USE_MONOTONIC EV_FEATURE_OS
255	# else	275	# else
256	# define EV_USE_MONOTONIC 0	276	# define EV_USE_MONOTONIC 0
257	# endif	277	# endif
258	#endif	278	#endif
…		…
295		315
296	#ifndef EV_USE_PORT	316	#ifndef EV_USE_PORT
297	# define EV_USE_PORT 0	317	# define EV_USE_PORT 0
298	#endif	318	#endif
299		319
		320	#ifndef EV_USE_LINUXAIO
		321	# define EV_USE_LINUXAIO 0
		322	#endif
		323
300	#ifndef EV_USE_INOTIFY	324	#ifndef EV_USE_INOTIFY
301	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	325	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
302	# define EV_USE_INOTIFY EV_FEATURE_OS	326	# define EV_USE_INOTIFY EV_FEATURE_OS
303	# else	327	# else
304	# define EV_USE_INOTIFY 0	328	# define EV_USE_INOTIFY 0
…		…
345		369
346	#ifndef EV_HEAP_CACHE_AT	370	#ifndef EV_HEAP_CACHE_AT
347	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	371	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
348	#endif	372	#endif
349		373
		374	#ifdef __ANDROID__
		375	/* supposedly, android doesn't typedef fd_mask */
		376	# undef EV_USE_SELECT
		377	# define EV_USE_SELECT 0
		378	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		379	# undef EV_USE_CLOCK_SYSCALL
		380	# define EV_USE_CLOCK_SYSCALL 0
		381	#endif
		382
		383	/* aix's poll.h seems to cause lots of trouble */
		384	#ifdef _AIX
		385	/* AIX has a completely broken poll.h header */
		386	# undef EV_USE_POLL
		387	# define EV_USE_POLL 0
		388	#endif
		389
		390	#if EV_USE_LINUXAIO
		391	# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
		392	#endif
		393
350	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	394	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
351	/* which makes programs even slower. might work on other unices, too. */	395	/* which makes programs even slower. might work on other unices, too. */
352	#if EV_USE_CLOCK_SYSCALL	396	#if EV_USE_CLOCK_SYSCALL
353	# include <syscall.h>	397	# include <sys/syscall.h>
354	# ifdef SYS_clock_gettime	398	# ifdef SYS_clock_gettime
355	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	399	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356	# undef EV_USE_MONOTONIC	400	# undef EV_USE_MONOTONIC
357	# define EV_USE_MONOTONIC 1	401	# define EV_USE_MONOTONIC 1
358	# else	402	# else
…		…
361	# endif	405	# endif
362	#endif	406	#endif
363		407
364	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	408	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
365		409
366	#ifdef _AIX
367	/* AIX has a completely broken poll.h header */
368	# undef EV_USE_POLL
369	# define EV_USE_POLL 0
370	#endif
371
372	#ifndef CLOCK_MONOTONIC	410	#ifndef CLOCK_MONOTONIC
373	# undef EV_USE_MONOTONIC	411	# undef EV_USE_MONOTONIC
374	# define EV_USE_MONOTONIC 0	412	# define EV_USE_MONOTONIC 0
375	#endif	413	#endif
376		414
…		…
384	# define EV_USE_INOTIFY 0	422	# define EV_USE_INOTIFY 0
385	#endif	423	#endif
386		424
387	#if !EV_USE_NANOSLEEP	425	#if !EV_USE_NANOSLEEP
388	/* hp-ux has it in sys/time.h, which we unconditionally include above */	426	/* hp-ux has it in sys/time.h, which we unconditionally include above */
389	# if !defined(_WIN32) && !defined(__hpux)	427	# if !defined _WIN32 && !defined __hpux
390	# include <sys/select.h>	428	# include <sys/select.h>
391	# endif	429	# endif
392	#endif	430	#endif
393		431
394	#if EV_USE_INOTIFY	432	#if EV_USE_INOTIFY
…		…
397	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	435	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
398	# ifndef IN_DONT_FOLLOW	436	# ifndef IN_DONT_FOLLOW
399	# undef EV_USE_INOTIFY	437	# undef EV_USE_INOTIFY
400	# define EV_USE_INOTIFY 0	438	# define EV_USE_INOTIFY 0
401	# endif	439	# endif
402	#endif
403
404	#if EV_SELECT_IS_WINSOCKET
405	# include <winsock.h>
406	#endif	440	#endif
407		441
408	#if EV_USE_EVENTFD	442	#if EV_USE_EVENTFD
409	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	443	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410	# include <stdint.h>	444	# include <stdint.h>
…		…
467	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	501	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468	/* ECB.H BEGIN */	502	/* ECB.H BEGIN */
469	/*	503	/*
470	* libecb - http://software.schmorp.de/pkg/libecb	504	* libecb - http://software.schmorp.de/pkg/libecb
471	*	505	*
472	* Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>	506	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
473	* Copyright (©) 2011 Emanuele Giaquinta	507	* Copyright (©) 2011 Emanuele Giaquinta
474	* All rights reserved.	508	* All rights reserved.
475	*	509	*
476	* Redistribution and use in source and binary forms, with or without modifica-	510	* Redistribution and use in source and binary forms, with or without modifica-
477	* tion, are permitted provided that the following conditions are met:	511	* tion, are permitted provided that the following conditions are met:
…		…
491	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;	525	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
492	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	526	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
493	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	527	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
494	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED	528	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
495	* OF THE POSSIBILITY OF SUCH DAMAGE.	529	* OF THE POSSIBILITY OF SUCH DAMAGE.
		530	*
		531	* Alternatively, the contents of this file may be used under the terms of
		532	* the GNU General Public License ("GPL") version 2 or any later version,
		533	* in which case the provisions of the GPL are applicable instead of
		534	* the above. If you wish to allow the use of your version of this file
		535	* only under the terms of the GPL and not to allow others to use your
		536	* version of this file under the BSD license, indicate your decision
		537	* by deleting the provisions above and replace them with the notice
		538	* and other provisions required by the GPL. If you do not delete the
		539	* provisions above, a recipient may use your version of this file under
		540	* either the BSD or the GPL.
496	*/	541	*/
497		542
498	#ifndef ECB_H	543	#ifndef ECB_H
499	#define ECB_H	544	#define ECB_H
		545
		546	/* 16 bits major, 16 bits minor */
		547	#define ECB_VERSION 0x00010005
500		548
501	#ifdef _WIN32	549	#ifdef _WIN32
502	typedef signed char int8_t;	550	typedef signed char int8_t;
503	typedef unsigned char uint8_t;	551	typedef unsigned char uint8_t;
504	typedef signed short int16_t;	552	typedef signed short int16_t;
…		…
510	typedef unsigned long long uint64_t;	558	typedef unsigned long long uint64_t;
511	#else /* _MSC_VER || __BORLANDC__ */	559	#else /* _MSC_VER || __BORLANDC__ */
512	typedef signed __int64 int64_t;	560	typedef signed __int64 int64_t;
513	typedef unsigned __int64 uint64_t;	561	typedef unsigned __int64 uint64_t;
514	#endif	562	#endif
		563	#ifdef _WIN64
		564	#define ECB_PTRSIZE 8
		565	typedef uint64_t uintptr_t;
		566	typedef int64_t intptr_t;
		567	#else
		568	#define ECB_PTRSIZE 4
		569	typedef uint32_t uintptr_t;
		570	typedef int32_t intptr_t;
		571	#endif
515	#else	572	#else
516	#include <inttypes.h>	573	#include <inttypes.h>
		574	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
		575	#define ECB_PTRSIZE 8
		576	#else
		577	#define ECB_PTRSIZE 4
		578	#endif
		579	#endif
		580
		581	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
		582	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
		583
		584	/* work around x32 idiocy by defining proper macros */
		585	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
		586	#if _ILP32
		587	#define ECB_AMD64_X32 1
		588	#else
		589	#define ECB_AMD64 1
		590	#endif
517	#endif	591	#endif
518		592
519	/* many compilers define _GNUC_ to some versions but then only implement	593	/* many compilers define _GNUC_ to some versions but then only implement
520	* what their idiot authors think are the "more important" extensions,	594	* what their idiot authors think are the "more important" extensions,
521	* causing enormous grief in return for some better fake benchmark numbers.	595	* causing enormous grief in return for some better fake benchmark numbers.
522	* or so.	596	* or so.
523	* we try to detect these and simply assume they are not gcc - if they have	597	* we try to detect these and simply assume they are not gcc - if they have
524	* an issue with that they should have done it right in the first place.	598	* an issue with that they should have done it right in the first place.
525	*/	599	*/
526	#ifndef ECB_GCC_VERSION
527	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	600	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
528	#define ECB_GCC_VERSION(major,minor) 0	601	#define ECB_GCC_VERSION(major,minor) 0
529	#else	602	#else
530	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	603	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
531	#endif	604	#endif
		605
		606	#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
		607
		608	#if __clang__ && defined __has_builtin
		609	#define ECB_CLANG_BUILTIN(x) __has_builtin (x)
		610	#else
		611	#define ECB_CLANG_BUILTIN(x) 0
		612	#endif
		613
		614	#if __clang__ && defined __has_extension
		615	#define ECB_CLANG_EXTENSION(x) __has_extension (x)
		616	#else
		617	#define ECB_CLANG_EXTENSION(x) 0
		618	#endif
		619
		620	#define ECB_CPP (__cplusplus+0)
		621	#define ECB_CPP11 (__cplusplus >= 201103L)
		622	#define ECB_CPP14 (__cplusplus >= 201402L)
		623	#define ECB_CPP17 (__cplusplus >= 201703L)
		624
		625	#if ECB_CPP
		626	#define ECB_C 0
		627	#define ECB_STDC_VERSION 0
		628	#else
		629	#define ECB_C 1
		630	#define ECB_STDC_VERSION __STDC_VERSION__
		631	#endif
		632
		633	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		634	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		635	#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
		636
		637	#if ECB_CPP
		638	#define ECB_EXTERN_C extern "C"
		639	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		640	#define ECB_EXTERN_C_END }
		641	#else
		642	#define ECB_EXTERN_C extern
		643	#define ECB_EXTERN_C_BEG
		644	#define ECB_EXTERN_C_END
532	#endif	645	#endif
533		646
534	/*****************************************************************************/	647	/*****************************************************************************/
535		648
536	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	649	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */	650	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538		651
539	#if ECB_NO_THREADS || ECB_NO_SMP	652	#if ECB_NO_THREADS
		653	#define ECB_NO_SMP 1
		654	#endif
		655
		656	#if ECB_NO_SMP
540	#define ECB_MEMORY_FENCE do { } while (0)	657	#define ECB_MEMORY_FENCE do { } while (0)
541	#endif	658	#endif
542		659
		660	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
		661	#if __xlC__ && ECB_CPP
		662	#include <builtins.h>
		663	#endif
		664
		665	#if 1400 <= _MSC_VER
		666	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
		667	#endif
		668
543	#ifndef ECB_MEMORY_FENCE	669	#ifndef ECB_MEMORY_FENCE
544	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__)	670	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545	#if __i386__	671	#if __i386 || __i386__
546	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	672	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */	673	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	674	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
549	#elif __amd64	675	#elif ECB_GCC_AMD64
550	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	676	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	677	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */	678	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
553	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	679	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	680	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		681	#elif defined __ARM_ARCH_2__ \
		682	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
		683	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
		684	|| defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
		685	|| defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
		686	|| defined __ARM_ARCH_5TEJ__
		687	/* should not need any, unless running old code on newer cpu - arm doesn't support that */
555	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	688	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	689	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		690	|| defined __ARM_ARCH_6T2__
557	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	691	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \	692	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	693	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
560	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	694	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		695	#elif __aarch64__
		696	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
		697	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
		698	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		699	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		700	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		701	#elif defined __s390__ || defined __s390x__
		702	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		703	#elif defined __mips__
		704	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		705	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		706	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		707	#elif defined __alpha__
		708	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		709	#elif defined __hppa__
		710	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		711	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		712	#elif defined __ia64__
		713	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		714	#elif defined __m68k__
		715	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		716	#elif defined __m88k__
		717	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		718	#elif defined __sh__
		719	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
561	#endif	720	#endif
562	#endif	721	#endif
563	#endif	722	#endif
564		723
565	#ifndef ECB_MEMORY_FENCE	724	#ifndef ECB_MEMORY_FENCE
		725	#if ECB_GCC_VERSION(4,7)
		726	/* see comment below (stdatomic.h) about the C11 memory model. */
		727	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		728	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		729	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		730
		731	#elif ECB_CLANG_EXTENSION(c_atomic)
		732	/* see comment below (stdatomic.h) about the C11 memory model. */
		733	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		734	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		735	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
		736
566	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	737	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
567	#define ECB_MEMORY_FENCE __sync_synchronize ()	738	#define ECB_MEMORY_FENCE __sync_synchronize ()
568	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */	739	#elif _MSC_VER >= 1500 /* VC++ 2008 */
569	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */	740	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		741	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		742	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		743	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		744	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
570	#elif _MSC_VER >= 1400 /* VC++ 2005 */	745	#elif _MSC_VER >= 1400 /* VC++ 2005 */
571	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	746	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
572	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	747	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
573	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	748	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
574	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	749	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
575	#elif defined(_WIN32)	750	#elif defined _WIN32
576	#include <WinNT.h>	751	#include <WinNT.h>
577	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	752	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		753	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		754	#include <mbarrier.h>
		755	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		756	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		757	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		758	#elif __xlC__
		759	#define ECB_MEMORY_FENCE __sync ()
		760	#endif
		761	#endif
		762
		763	#ifndef ECB_MEMORY_FENCE
		764	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		765	/* we assume that these memory fences work on all variables/all memory accesses, */
		766	/* not just C11 atomics and atomic accesses */
		767	#include <stdatomic.h>
		768	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		769	/* any fence other than seq_cst, which isn't very efficient for us. */
		770	/* Why that is, we don't know - either the C11 memory model is quite useless */
		771	/* for most usages, or gcc and clang have a bug */
		772	/* I *currently* lean towards the latter, and inefficiently implement */
		773	/* all three of ecb's fences as a seq_cst fence */
		774	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		775	/* for all __atomic_thread_fence's except seq_cst */
		776	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
578	#endif	777	#endif
579	#endif	778	#endif
580		779
581	#ifndef ECB_MEMORY_FENCE	780	#ifndef ECB_MEMORY_FENCE
582	#if !ECB_AVOID_PTHREADS	781	#if !ECB_AVOID_PTHREADS
…		…
594	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	793	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
595	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)	794	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
596	#endif	795	#endif
597	#endif	796	#endif
598		797
599	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	798	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
600	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	799	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
601	#endif	800	#endif
602		801
603	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	802	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
604	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	803	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
605	#endif	804	#endif
606		805
607	/*****************************************************************************/	806	/*****************************************************************************/
608		807
609	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	808	#if ECB_CPP
610
611	#if __cplusplus
612	#define ecb_inline static inline	809	#define ecb_inline static inline
613	#elif ECB_GCC_VERSION(2,5)	810	#elif ECB_GCC_VERSION(2,5)
614	#define ecb_inline static __inline__	811	#define ecb_inline static __inline__
615	#elif ECB_C99	812	#elif ECB_C99
616	#define ecb_inline static inline	813	#define ecb_inline static inline
…		…
630		827
631	#define ECB_CONCAT_(a, b) a ## b	828	#define ECB_CONCAT_(a, b) a ## b
632	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	829	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
633	#define ECB_STRINGIFY_(a) # a	830	#define ECB_STRINGIFY_(a) # a
634	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	831	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		832	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
635		833
636	#define ecb_function_ ecb_inline	834	#define ecb_function_ ecb_inline
637		835
638	#if ECB_GCC_VERSION(3,1)	836	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
639	#define ecb_attribute(attrlist) __attribute__(attrlist)	837	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		838	#else
		839	#define ecb_attribute(attrlist)
		840	#endif
		841
		842	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
640	#define ecb_is_constant(expr) __builtin_constant_p (expr)	843	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		844	#else
		845	/* possible C11 impl for integral types
		846	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		847	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		848
		849	#define ecb_is_constant(expr) 0
		850	#endif
		851
		852	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
641	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	853	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		854	#else
		855	#define ecb_expect(expr,value) (expr)
		856	#endif
		857
		858	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
642	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	859	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
643	#else	860	#else
644	#define ecb_attribute(attrlist)
645	#define ecb_is_constant(expr) 0
646	#define ecb_expect(expr,value) (expr)
647	#define ecb_prefetch(addr,rw,locality)	861	#define ecb_prefetch(addr,rw,locality)
648	#endif	862	#endif
649		863
650	/* no emulation for ecb_decltype */	864	/* no emulation for ecb_decltype */
651	#if ECB_GCC_VERSION(4,5)	865	#if ECB_CPP11
		866	// older implementations might have problems with decltype(x)::type, work around it
		867	template<class T> struct ecb_decltype_t { typedef T type; };
652	#define ecb_decltype(x) __decltype(x)	868	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
653	#elif ECB_GCC_VERSION(3,0)	869	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
654	#define ecb_decltype(x) __typeof(x)	870	#define ecb_decltype(x) __typeof__ (x)
655	#endif	871	#endif
656		872
		873	#if _MSC_VER >= 1300
		874	#define ecb_deprecated __declspec (deprecated)
		875	#else
		876	#define ecb_deprecated ecb_attribute ((__deprecated__))
		877	#endif
		878
		879	#if _MSC_VER >= 1500
		880	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		881	#elif ECB_GCC_VERSION(4,5)
		882	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		883	#else
		884	#define ecb_deprecated_message(msg) ecb_deprecated
		885	#endif
		886
		887	#if _MSC_VER >= 1400
		888	#define ecb_noinline __declspec (noinline)
		889	#else
657	#define ecb_noinline ecb_attribute ((__noinline__))	890	#define ecb_noinline ecb_attribute ((__noinline__))
658	#define ecb_noreturn ecb_attribute ((__noreturn__))	891	#endif
		892
659	#define ecb_unused ecb_attribute ((__unused__))	893	#define ecb_unused ecb_attribute ((__unused__))
660	#define ecb_const ecb_attribute ((__const__))	894	#define ecb_const ecb_attribute ((__const__))
661	#define ecb_pure ecb_attribute ((__pure__))	895	#define ecb_pure ecb_attribute ((__pure__))
		896
		897	#if ECB_C11 || __IBMC_NORETURN
		898	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
		899	#define ecb_noreturn _Noreturn
		900	#elif ECB_CPP11
		901	#define ecb_noreturn [[noreturn]]
		902	#elif _MSC_VER >= 1200
		903	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		904	#define ecb_noreturn __declspec (noreturn)
		905	#else
		906	#define ecb_noreturn ecb_attribute ((__noreturn__))
		907	#endif
662		908
663	#if ECB_GCC_VERSION(4,3)	909	#if ECB_GCC_VERSION(4,3)
664	#define ecb_artificial ecb_attribute ((__artificial__))	910	#define ecb_artificial ecb_attribute ((__artificial__))
665	#define ecb_hot ecb_attribute ((__hot__))	911	#define ecb_hot ecb_attribute ((__hot__))
666	#define ecb_cold ecb_attribute ((__cold__))	912	#define ecb_cold ecb_attribute ((__cold__))
…		…
678	/* for compatibility to the rest of the world */	924	/* for compatibility to the rest of the world */
679	#define ecb_likely(expr) ecb_expect_true (expr)	925	#define ecb_likely(expr) ecb_expect_true (expr)
680	#define ecb_unlikely(expr) ecb_expect_false (expr)	926	#define ecb_unlikely(expr) ecb_expect_false (expr)
681		927
682	/* count trailing zero bits and count # of one bits */	928	/* count trailing zero bits and count # of one bits */
683	#if ECB_GCC_VERSION(3,4)	929	#if ECB_GCC_VERSION(3,4) \
		930	|| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		931	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		932	&& ECB_CLANG_BUILTIN(__builtin_popcount))
684	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	933	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
685	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	934	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
686	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	935	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
687	#define ecb_ctz32(x) __builtin_ctz (x)	936	#define ecb_ctz32(x) __builtin_ctz (x)
688	#define ecb_ctz64(x) __builtin_ctzll (x)	937	#define ecb_ctz64(x) __builtin_ctzll (x)
689	#define ecb_popcount32(x) __builtin_popcount (x)	938	#define ecb_popcount32(x) __builtin_popcount (x)
690	/* no popcountll */	939	/* no popcountll */
691	#else	940	#else
692	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	941	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
693	ecb_function_ int	942	ecb_function_ ecb_const int
694	ecb_ctz32 (uint32_t x)	943	ecb_ctz32 (uint32_t x)
695	{	944	{
		945	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		946	unsigned long r;
		947	_BitScanForward (&r, x);
		948	return (int)r;
		949	#else
696	int r = 0;	950	int r = 0;
697		951
698	x &= ~x + 1; /* this isolates the lowest bit */	952	x &= ~x + 1; /* this isolates the lowest bit */
699		953
700	#if ECB_branchless_on_i386	954	#if ECB_branchless_on_i386
…		…
710	if (x & 0xff00ff00) r += 8;	964	if (x & 0xff00ff00) r += 8;
711	if (x & 0xffff0000) r += 16;	965	if (x & 0xffff0000) r += 16;
712	#endif	966	#endif
713		967
714	return r;	968	return r;
		969	#endif
715	}	970	}
716		971
717	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	972	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
718	ecb_function_ int	973	ecb_function_ ecb_const int
719	ecb_ctz64 (uint64_t x)	974	ecb_ctz64 (uint64_t x)
720	{	975	{
		976	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		977	unsigned long r;
		978	_BitScanForward64 (&r, x);
		979	return (int)r;
		980	#else
721	int shift = x & 0xffffffffU ? 0 : 32;	981	int shift = x & 0xffffffff ? 0 : 32;
722	return ecb_ctz32 (x >> shift) + shift;	982	return ecb_ctz32 (x >> shift) + shift;
		983	#endif
723	}	984	}
724		985
725	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	986	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
726	ecb_function_ int	987	ecb_function_ ecb_const int
727	ecb_popcount32 (uint32_t x)	988	ecb_popcount32 (uint32_t x)
728	{	989	{
729	x -= (x >> 1) & 0x55555555;	990	x -= (x >> 1) & 0x55555555;
730	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	991	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
731	x = ((x >> 4) + x) & 0x0f0f0f0f;	992	x = ((x >> 4) + x) & 0x0f0f0f0f;
732	x *= 0x01010101;	993	x *= 0x01010101;
733		994
734	return x >> 24;	995	return x >> 24;
735	}	996	}
736		997
737	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	998	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
738	ecb_function_ int ecb_ld32 (uint32_t x)	999	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
739	{	1000	{
		1001	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		1002	unsigned long r;
		1003	_BitScanReverse (&r, x);
		1004	return (int)r;
		1005	#else
740	int r = 0;	1006	int r = 0;
741		1007
742	if (x >> 16) { x >>= 16; r += 16; }	1008	if (x >> 16) { x >>= 16; r += 16; }
743	if (x >> 8) { x >>= 8; r += 8; }	1009	if (x >> 8) { x >>= 8; r += 8; }
744	if (x >> 4) { x >>= 4; r += 4; }	1010	if (x >> 4) { x >>= 4; r += 4; }
745	if (x >> 2) { x >>= 2; r += 2; }	1011	if (x >> 2) { x >>= 2; r += 2; }
746	if (x >> 1) { r += 1; }	1012	if (x >> 1) { r += 1; }
747		1013
748	return r;	1014	return r;
		1015	#endif
749	}	1016	}
750		1017
751	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1018	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
752	ecb_function_ int ecb_ld64 (uint64_t x)	1019	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
753	{	1020	{
		1021	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		1022	unsigned long r;
		1023	_BitScanReverse64 (&r, x);
		1024	return (int)r;
		1025	#else
754	int r = 0;	1026	int r = 0;
755		1027
756	if (x >> 32) { x >>= 32; r += 32; }	1028	if (x >> 32) { x >>= 32; r += 32; }
757		1029
758	return r + ecb_ld32 (x);	1030	return r + ecb_ld32 (x);
		1031	#endif
759	}	1032	}
760	#endif	1033	#endif
		1034
		1035	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
		1036	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		1037	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
		1038	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		1039
		1040	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
		1041	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
		1042	{
		1043	return ( (x * 0x0802U & 0x22110U)
		1044	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		1045	}
		1046
		1047	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
		1048	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
		1049	{
		1050	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		1051	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		1052	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		1053	x = ( x >> 8 ) | ( x << 8);
		1054
		1055	return x;
		1056	}
		1057
		1058	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
		1059	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
		1060	{
		1061	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		1062	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		1063	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		1064	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		1065	x = ( x >> 16 ) | ( x << 16);
		1066
		1067	return x;
		1068	}
761		1069
762	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1070	/* popcount64 is only available on 64 bit cpus as gcc builtin */
763	/* so for this version we are lazy */	1071	/* so for this version we are lazy */
764	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1072	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
765	ecb_function_ int	1073	ecb_function_ ecb_const int
766	ecb_popcount64 (uint64_t x)	1074	ecb_popcount64 (uint64_t x)
767	{	1075	{
768	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1076	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
769	}	1077	}
770		1078
771	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1079	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
772	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1080	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
773	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1081	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
774	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1082	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
775	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1083	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
776	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1084	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
777	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1085	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
778	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1086	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
779		1087
780	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }	1088	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
781	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }	1089	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
782	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }	1090	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
783	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }	1091	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
784	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }	1092	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
785	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }	1093	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
786	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }	1094	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
787	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }	1095	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
788		1096
789	#if ECB_GCC_VERSION(4,3)	1097	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
		1098	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
		1099	#define ecb_bswap16(x) __builtin_bswap16 (x)
		1100	#else
790	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1101	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1102	#endif
791	#define ecb_bswap32(x) __builtin_bswap32 (x)	1103	#define ecb_bswap32(x) __builtin_bswap32 (x)
792	#define ecb_bswap64(x) __builtin_bswap64 (x)	1104	#define ecb_bswap64(x) __builtin_bswap64 (x)
		1105	#elif _MSC_VER
		1106	#include <stdlib.h>
		1107	#define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
		1108	#define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
		1109	#define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
793	#else	1110	#else
794	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1111	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
795	ecb_function_ uint16_t	1112	ecb_function_ ecb_const uint16_t
796	ecb_bswap16 (uint16_t x)	1113	ecb_bswap16 (uint16_t x)
797	{	1114	{
798	return ecb_rotl16 (x, 8);	1115	return ecb_rotl16 (x, 8);
799	}	1116	}
800		1117
801	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1118	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
802	ecb_function_ uint32_t	1119	ecb_function_ ecb_const uint32_t
803	ecb_bswap32 (uint32_t x)	1120	ecb_bswap32 (uint32_t x)
804	{	1121	{
805	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1122	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
806	}	1123	}
807		1124
808	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1125	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
809	ecb_function_ uint64_t	1126	ecb_function_ ecb_const uint64_t
810	ecb_bswap64 (uint64_t x)	1127	ecb_bswap64 (uint64_t x)
811	{	1128	{
812	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1129	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
813	}	1130	}
814	#endif	1131	#endif
815		1132
816	#if ECB_GCC_VERSION(4,5)	1133	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
817	#define ecb_unreachable() __builtin_unreachable ()	1134	#define ecb_unreachable() __builtin_unreachable ()
818	#else	1135	#else
819	/* this seems to work fine, but gcc always emits a warning for it :/ */	1136	/* this seems to work fine, but gcc always emits a warning for it :/ */
820	ecb_function_ void ecb_unreachable (void) ecb_noreturn;	1137	ecb_inline ecb_noreturn void ecb_unreachable (void);
821	ecb_function_ void ecb_unreachable (void) { }	1138	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
822	#endif	1139	#endif
823		1140
824	/* try to tell the compiler that some condition is definitely true */	1141	/* try to tell the compiler that some condition is definitely true */
825	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	1142	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
826		1143
827	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;	1144	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
828	ecb_function_ unsigned char	1145	ecb_inline ecb_const uint32_t
829	ecb_byteorder_helper (void)	1146	ecb_byteorder_helper (void)
830	{	1147	{
831	const uint32_t u = 0x11223344;	1148	/* the union code still generates code under pressure in gcc, */
832	return *(unsigned char *)&u;	1149	/* but less than using pointers, and always seems to */
		1150	/* successfully return a constant. */
		1151	/* the reason why we have this horrible preprocessor mess */
		1152	/* is to avoid it in all cases, at least on common architectures */
		1153	/* or when using a recent enough gcc version (>= 4.6) */
		1154	#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
		1155	|| ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
		1156	#define ECB_LITTLE_ENDIAN 1
		1157	return 0x44332211;
		1158	#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
		1159	|| ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
		1160	#define ECB_BIG_ENDIAN 1
		1161	return 0x11223344;
		1162	#else
		1163	union
		1164	{
		1165	uint8_t c[4];
		1166	uint32_t u;
		1167	} u = { 0x11, 0x22, 0x33, 0x44 };
		1168	return u.u;
		1169	#endif
833	}	1170	}
834		1171
835	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;	1172	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
836	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1173	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
837	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;	1174	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
838	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1175	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
839		1176
840	#if ECB_GCC_VERSION(3,0) || ECB_C99	1177	#if ECB_GCC_VERSION(3,0) || ECB_C99
841	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1178	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
842	#else	1179	#else
843	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1180	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
844	#endif	1181	#endif
845		1182
846	#if __cplusplus	1183	#if ECB_CPP
847	template<typename T>	1184	template<typename T>
848	static inline T ecb_div_rd (T val, T div)	1185	static inline T ecb_div_rd (T val, T div)
849	{	1186	{
850	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1187	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
851	}	1188	}
…		…
868	}	1205	}
869	#else	1206	#else
870	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1207	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
871	#endif	1208	#endif
872		1209
		1210	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
		1211	ecb_function_ ecb_const uint32_t
		1212	ecb_binary16_to_binary32 (uint32_t x)
		1213	{
		1214	unsigned int s = (x & 0x8000) << (31 - 15);
		1215	int e = (x >> 10) & 0x001f;
		1216	unsigned int m = x & 0x03ff;
		1217
		1218	if (ecb_expect_false (e == 31))
		1219	/* infinity or NaN */
		1220	e = 255 - (127 - 15);
		1221	else if (ecb_expect_false (!e))
		1222	{
		1223	if (ecb_expect_true (!m))
		1224	/* zero, handled by code below by forcing e to 0 */
		1225	e = 0 - (127 - 15);
		1226	else
		1227	{
		1228	/* subnormal, renormalise */
		1229	unsigned int s = 10 - ecb_ld32 (m);
		1230
		1231	m = (m << s) & 0x3ff; /* mask implicit bit */
		1232	e -= s - 1;
		1233	}
		1234	}
		1235
		1236	/* e and m now are normalised, or zero, (or inf or nan) */
		1237	e += 127 - 15;
		1238
		1239	return s | (e << 23) | (m << (23 - 10));
		1240	}
		1241
		1242	ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
		1243	ecb_function_ ecb_const uint16_t
		1244	ecb_binary32_to_binary16 (uint32_t x)
		1245	{
		1246	unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
		1247	unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
		1248	unsigned int m = x & 0x007fffff;
		1249
		1250	x &= 0x7fffffff;
		1251
		1252	/* if it's within range of binary16 normals, use fast path */
		1253	if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
		1254	{
		1255	/* mantissa round-to-even */
		1256	m += 0x00000fff + ((m >> (23 - 10)) & 1);
		1257
		1258	/* handle overflow */
		1259	if (ecb_expect_false (m >= 0x00800000))
		1260	{
		1261	m >>= 1;
		1262	e += 1;
		1263	}
		1264
		1265	return s | (e << 10) | (m >> (23 - 10));
		1266	}
		1267
		1268	/* handle large numbers and infinity */
		1269	if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
		1270	return s | 0x7c00;
		1271
		1272	/* handle zero, subnormals and small numbers */
		1273	if (ecb_expect_true (x < 0x38800000))
		1274	{
		1275	/* zero */
		1276	if (ecb_expect_true (!x))
		1277	return s;
		1278
		1279	/* handle subnormals */
		1280
		1281	/* too small, will be zero */
		1282	if (e < (14 - 24)) /* might not be sharp, but is good enough */
		1283	return s;
		1284
		1285	m |= 0x00800000; /* make implicit bit explicit */
		1286
		1287	/* very tricky - we need to round to the nearest e (+10) bit value */
		1288	{
		1289	unsigned int bits = 14 - e;
		1290	unsigned int half = (1 << (bits - 1)) - 1;
		1291	unsigned int even = (m >> bits) & 1;
		1292
		1293	/* if this overflows, we will end up with a normalised number */
		1294	m = (m + half + even) >> bits;
		1295	}
		1296
		1297	return s | m;
		1298	}
		1299
		1300	/* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
		1301	m >>= 13;
		1302
		1303	return s | 0x7c00 | m | !m;
		1304	}
		1305
		1306	/*******************************************************************************/
		1307	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1308
		1309	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1310	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1311	#if 0 \
		1312	|| __i386 || __i386__ \
		1313	|| ECB_GCC_AMD64 \
		1314	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1315	|| defined __s390__ || defined __s390x__ \
		1316	|| defined __mips__ \
		1317	|| defined __alpha__ \
		1318	|| defined __hppa__ \
		1319	|| defined __ia64__ \
		1320	|| defined __m68k__ \
		1321	|| defined __m88k__ \
		1322	|| defined __sh__ \
		1323	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
		1324	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1325	|| defined __aarch64__
		1326	#define ECB_STDFP 1
		1327	#include <string.h> /* for memcpy */
		1328	#else
		1329	#define ECB_STDFP 0
		1330	#endif
		1331
		1332	#ifndef ECB_NO_LIBM
		1333
		1334	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1335
		1336	/* only the oldest of old doesn't have this one. solaris. */
		1337	#ifdef INFINITY
		1338	#define ECB_INFINITY INFINITY
		1339	#else
		1340	#define ECB_INFINITY HUGE_VAL
		1341	#endif
		1342
		1343	#ifdef NAN
		1344	#define ECB_NAN NAN
		1345	#else
		1346	#define ECB_NAN ECB_INFINITY
		1347	#endif
		1348
		1349	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
		1350	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
		1351	#define ecb_frexpf(x,e) frexpf ((x), (e))
		1352	#else
		1353	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
		1354	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
		1355	#endif
		1356
		1357	/* convert a float to ieee single/binary32 */
		1358	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
		1359	ecb_function_ ecb_const uint32_t
		1360	ecb_float_to_binary32 (float x)
		1361	{
		1362	uint32_t r;
		1363
		1364	#if ECB_STDFP
		1365	memcpy (&r, &x, 4);
		1366	#else
		1367	/* slow emulation, works for anything but -0 */
		1368	uint32_t m;
		1369	int e;
		1370
		1371	if (x == 0e0f ) return 0x00000000U;
		1372	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1373	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1374	if (x != x ) return 0x7fbfffffU;
		1375
		1376	m = ecb_frexpf (x, &e) * 0x1000000U;
		1377
		1378	r = m & 0x80000000U;
		1379
		1380	if (r)
		1381	m = -m;
		1382
		1383	if (e <= -126)
		1384	{
		1385	m &= 0xffffffU;
		1386	m >>= (-125 - e);
		1387	e = -126;
		1388	}
		1389
		1390	r |= (e + 126) << 23;
		1391	r |= m & 0x7fffffU;
		1392	#endif
		1393
		1394	return r;
		1395	}
		1396
		1397	/* converts an ieee single/binary32 to a float */
		1398	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
		1399	ecb_function_ ecb_const float
		1400	ecb_binary32_to_float (uint32_t x)
		1401	{
		1402	float r;
		1403
		1404	#if ECB_STDFP
		1405	memcpy (&r, &x, 4);
		1406	#else
		1407	/* emulation, only works for normals and subnormals and +0 */
		1408	int neg = x >> 31;
		1409	int e = (x >> 23) & 0xffU;
		1410
		1411	x &= 0x7fffffU;
		1412
		1413	if (e)
		1414	x |= 0x800000U;
		1415	else
		1416	e = 1;
		1417
		1418	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1419	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
		1420
		1421	r = neg ? -r : r;
		1422	#endif
		1423
		1424	return r;
		1425	}
		1426
		1427	/* convert a double to ieee double/binary64 */
		1428	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
		1429	ecb_function_ ecb_const uint64_t
		1430	ecb_double_to_binary64 (double x)
		1431	{
		1432	uint64_t r;
		1433
		1434	#if ECB_STDFP
		1435	memcpy (&r, &x, 8);
		1436	#else
		1437	/* slow emulation, works for anything but -0 */
		1438	uint64_t m;
		1439	int e;
		1440
		1441	if (x == 0e0 ) return 0x0000000000000000U;
		1442	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1443	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1444	if (x != x ) return 0X7ff7ffffffffffffU;
		1445
		1446	m = frexp (x, &e) * 0x20000000000000U;
		1447
		1448	r = m & 0x8000000000000000;;
		1449
		1450	if (r)
		1451	m = -m;
		1452
		1453	if (e <= -1022)
		1454	{
		1455	m &= 0x1fffffffffffffU;
		1456	m >>= (-1021 - e);
		1457	e = -1022;
		1458	}
		1459
		1460	r |= ((uint64_t)(e + 1022)) << 52;
		1461	r |= m & 0xfffffffffffffU;
		1462	#endif
		1463
		1464	return r;
		1465	}
		1466
		1467	/* converts an ieee double/binary64 to a double */
		1468	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
		1469	ecb_function_ ecb_const double
		1470	ecb_binary64_to_double (uint64_t x)
		1471	{
		1472	double r;
		1473
		1474	#if ECB_STDFP
		1475	memcpy (&r, &x, 8);
		1476	#else
		1477	/* emulation, only works for normals and subnormals and +0 */
		1478	int neg = x >> 63;
		1479	int e = (x >> 52) & 0x7ffU;
		1480
		1481	x &= 0xfffffffffffffU;
		1482
		1483	if (e)
		1484	x |= 0x10000000000000U;
		1485	else
		1486	e = 1;
		1487
		1488	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1489	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1490
		1491	r = neg ? -r : r;
		1492	#endif
		1493
		1494	return r;
		1495	}
		1496
		1497	/* convert a float to ieee half/binary16 */
		1498	ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
		1499	ecb_function_ ecb_const uint16_t
		1500	ecb_float_to_binary16 (float x)
		1501	{
		1502	return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
		1503	}
		1504
		1505	/* convert an ieee half/binary16 to float */
		1506	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
		1507	ecb_function_ ecb_const float
		1508	ecb_binary16_to_float (uint16_t x)
		1509	{
		1510	return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
		1511	}
		1512
		1513	#endif
		1514
873	#endif	1515	#endif
874		1516
875	/* ECB.H END */	1517	/* ECB.H END */
876		1518
877	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1519	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
878	/* if your architecture doesn't need memory fences, e.g. because it is	1520	/* if your architecture doesn't need memory fences, e.g. because it is
879	* single-cpu/core, or if you use libev in a project that doesn't use libev	1521	* single-cpu/core, or if you use libev in a project that doesn't use libev
880	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling	1522	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
881	* libev, in which casess the memory fences become nops.	1523	* libev, in which cases the memory fences become nops.
882	* alternatively, you can remove this #error and link against libpthread,	1524	* alternatively, you can remove this #error and link against libpthread,
883	* which will then provide the memory fences.	1525	* which will then provide the memory fences.
884	*/	1526	*/
885	# error "memory fences not defined for your architecture, please report"	1527	# error "memory fences not defined for your architecture, please report"
886	#endif	1528	#endif
…		…
898	#define inline_size ecb_inline	1540	#define inline_size ecb_inline
899		1541
900	#if EV_FEATURE_CODE	1542	#if EV_FEATURE_CODE
901	# define inline_speed ecb_inline	1543	# define inline_speed ecb_inline
902	#else	1544	#else
903	# define inline_speed static noinline	1545	# define inline_speed noinline static
904	#endif	1546	#endif
905		1547
906	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1548	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
907		1549
908	#if EV_MINPRI == EV_MAXPRI	1550	#if EV_MINPRI == EV_MAXPRI
909	# define ABSPRI(w) (((W)w), 0)	1551	# define ABSPRI(w) (((W)w), 0)
910	#else	1552	#else
911	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	1553	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
912	#endif	1554	#endif
913		1555
914	#define EMPTY /* required for microsofts broken pseudo-c compiler */	1556	#define EMPTY /* required for microsofts broken pseudo-c compiler */
915	#define EMPTY2(a,b) /* used to suppress some warnings */
916		1557
917	typedef ev_watcher *W;	1558	typedef ev_watcher *W;
918	typedef ev_watcher_list *WL;	1559	typedef ev_watcher_list *WL;
919	typedef ev_watcher_time *WT;	1560	typedef ev_watcher_time *WT;
920		1561
…		…
955	#else	1596	#else
956		1597
957	#include <float.h>	1598	#include <float.h>
958		1599
959	/* a floor() replacement function, should be independent of ev_tstamp type */	1600	/* a floor() replacement function, should be independent of ev_tstamp type */
		1601	noinline
960	static ev_tstamp noinline	1602	static ev_tstamp
961	ev_floor (ev_tstamp v)	1603	ev_floor (ev_tstamp v)
962	{	1604	{
963	/* the choice of shift factor is not terribly important */	1605	/* the choice of shift factor is not terribly important */
964	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1606	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
965	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1607	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
…		…
997		1639
998	#ifdef __linux	1640	#ifdef __linux
999	# include <sys/utsname.h>	1641	# include <sys/utsname.h>
1000	#endif	1642	#endif
1001		1643
1002	static unsigned int noinline ecb_cold	1644	noinline ecb_cold
		1645	static unsigned int
1003	ev_linux_version (void)	1646	ev_linux_version (void)
1004	{	1647	{
1005	#ifdef __linux	1648	#ifdef __linux
1006	unsigned int v = 0;	1649	unsigned int v = 0;
1007	struct utsname buf;	1650	struct utsname buf;
…		…
1036	}	1679	}
1037		1680
1038	/*****************************************************************************/	1681	/*****************************************************************************/
1039		1682
1040	#if EV_AVOID_STDIO	1683	#if EV_AVOID_STDIO
1041	static void noinline ecb_cold	1684	noinline ecb_cold
		1685	static void
1042	ev_printerr (const char *msg)	1686	ev_printerr (const char *msg)
1043	{	1687	{
1044	write (STDERR_FILENO, msg, strlen (msg));	1688	write (STDERR_FILENO, msg, strlen (msg));
1045	}	1689	}
1046	#endif	1690	#endif
1047		1691
1048	static void (*syserr_cb)(const char *msg);	1692	static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1049		1693
1050	void ecb_cold	1694	ecb_cold
		1695	void
1051	ev_set_syserr_cb (void (*cb)(const char *msg))	1696	ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1052	{	1697	{
1053	syserr_cb = cb;	1698	syserr_cb = cb;
1054	}	1699	}
1055		1700
1056	static void noinline ecb_cold	1701	noinline ecb_cold
		1702	static void
1057	ev_syserr (const char *msg)	1703	ev_syserr (const char *msg)
1058	{	1704	{
1059	if (!msg)	1705	if (!msg)
1060	msg = "(libev) system error";	1706	msg = "(libev) system error";
1061		1707
…		…
1074	abort ();	1720	abort ();
1075	}	1721	}
1076	}	1722	}
1077		1723
1078	static void *	1724	static void *
1079	ev_realloc_emul (void *ptr, long size)	1725	ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1080	{	1726	{
1081	#if __GLIBC__
1082	return realloc (ptr, size);
1083	#else
1084	/* some systems, notably openbsd and darwin, fail to properly	1727	/* some systems, notably openbsd and darwin, fail to properly
1085	* implement realloc (x, 0) (as required by both ansi c-89 and	1728	* implement realloc (x, 0) (as required by both ansi c-89 and
1086	* the single unix specification, so work around them here.	1729	* the single unix specification, so work around them here.
		1730	* recently, also (at least) fedora and debian started breaking it,
		1731	* despite documenting it otherwise.
1087	*/	1732	*/
1088		1733
1089	if (size)	1734	if (size)
1090	return realloc (ptr, size);	1735	return realloc (ptr, size);
1091		1736
1092	free (ptr);	1737	free (ptr);
1093	return 0;	1738	return 0;
1094	#endif
1095	}	1739	}
1096		1740
1097	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1741	static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1098		1742
1099	void ecb_cold	1743	ecb_cold
		1744	void
1100	ev_set_allocator (void *(*cb)(void *ptr, long size))	1745	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1101	{	1746	{
1102	alloc = cb;	1747	alloc = cb;
1103	}	1748	}
1104		1749
1105	inline_speed void *	1750	inline_speed void *
…		…
1132	typedef struct	1777	typedef struct
1133	{	1778	{
1134	WL head;	1779	WL head;
1135	unsigned char events; /* the events watched for */	1780	unsigned char events; /* the events watched for */
1136	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */	1781	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1137	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	1782	unsigned char emask; /* some backends store the actual kernel mask in here */
1138	unsigned char unused;	1783	unsigned char unused;
1139	#if EV_USE_EPOLL	1784	#if EV_USE_EPOLL
1140	unsigned int egen; /* generation counter to counter epoll bugs */	1785	unsigned int egen; /* generation counter to counter epoll bugs */
1141	#endif	1786	#endif
1142	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP	1787	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
…		…
1193	#undef VAR	1838	#undef VAR
1194	};	1839	};
1195	#include "ev_wrap.h"	1840	#include "ev_wrap.h"
1196		1841
1197	static struct ev_loop default_loop_struct;	1842	static struct ev_loop default_loop_struct;
1198	struct ev_loop *ev_default_loop_ptr;	1843	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1199		1844
1200	#else	1845	#else
1201		1846
1202	ev_tstamp ev_rt_now;	1847	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1203	#define VAR(name,decl) static decl;	1848	#define VAR(name,decl) static decl;
1204	#include "ev_vars.h"	1849	#include "ev_vars.h"
1205	#undef VAR	1850	#undef VAR
1206		1851
1207	static int ev_default_loop_ptr;	1852	static int ev_default_loop_ptr;
…		…
1222		1867
1223	/*****************************************************************************/	1868	/*****************************************************************************/
1224		1869
1225	#ifndef EV_HAVE_EV_TIME	1870	#ifndef EV_HAVE_EV_TIME
1226	ev_tstamp	1871	ev_tstamp
1227	ev_time (void)	1872	ev_time (void) EV_NOEXCEPT
1228	{	1873	{
1229	#if EV_USE_REALTIME	1874	#if EV_USE_REALTIME
1230	if (expect_true (have_realtime))	1875	if (expect_true (have_realtime))
1231	{	1876	{
1232	struct timespec ts;	1877	struct timespec ts;
…		…
1256	return ev_time ();	1901	return ev_time ();
1257	}	1902	}
1258		1903
1259	#if EV_MULTIPLICITY	1904	#if EV_MULTIPLICITY
1260	ev_tstamp	1905	ev_tstamp
1261	ev_now (EV_P)	1906	ev_now (EV_P) EV_NOEXCEPT
1262	{	1907	{
1263	return ev_rt_now;	1908	return ev_rt_now;
1264	}	1909	}
1265	#endif	1910	#endif
1266		1911
1267	void	1912	void
1268	ev_sleep (ev_tstamp delay)	1913	ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1269	{	1914	{
1270	if (delay > 0.)	1915	if (delay > 0.)
1271	{	1916	{
1272	#if EV_USE_NANOSLEEP	1917	#if EV_USE_NANOSLEEP
1273	struct timespec ts;	1918	struct timespec ts;
1274		1919
1275	EV_TS_SET (ts, delay);	1920	EV_TS_SET (ts, delay);
1276	nanosleep (&ts, 0);	1921	nanosleep (&ts, 0);
1277	#elif defined(_WIN32)	1922	#elif defined _WIN32
		1923	/* maybe this should round up, as ms is very low resolution */
		1924	/* compared to select (µs) or nanosleep (ns) */
1278	Sleep ((unsigned long)(delay * 1e3));	1925	Sleep ((unsigned long)(delay * 1e3));
1279	#else	1926	#else
1280	struct timeval tv;	1927	struct timeval tv;
1281		1928
1282	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1929	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1301		1948
1302	do	1949	do
1303	ncur <<= 1;	1950	ncur <<= 1;
1304	while (cnt > ncur);	1951	while (cnt > ncur);
1305		1952
1306	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1953	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1307	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1954	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1308	{	1955	{
1309	ncur *= elem;	1956	ncur *= elem;
1310	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1957	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1311	ncur = ncur - sizeof (void *) * 4;	1958	ncur = ncur - sizeof (void *) * 4;
…		…
1313	}	1960	}
1314		1961
1315	return ncur;	1962	return ncur;
1316	}	1963	}
1317		1964
1318	static void * noinline ecb_cold	1965	noinline ecb_cold
		1966	static void *
1319	array_realloc (int elem, void *base, int *cur, int cnt)	1967	array_realloc (int elem, void *base, int *cur, int cnt)
1320	{	1968	{
1321	*cur = array_nextsize (elem, *cur, cnt);	1969	*cur = array_nextsize (elem, *cur, cnt);
1322	return ev_realloc (base, elem * *cur);	1970	return ev_realloc (base, elem * *cur);
1323	}	1971	}
1324		1972
		1973	#define array_needsize_noinit(base,count)
		1974
1325	#define array_init_zero(base,count) \	1975	#define array_needsize_zerofill(base,count) \
1326	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1976	memset ((void *)(base), 0, sizeof (*(base)) * (count))
1327		1977
1328	#define array_needsize(type,base,cur,cnt,init) \	1978	#define array_needsize(type,base,cur,cnt,init) \
1329	if (expect_false ((cnt) > (cur))) \	1979	if (expect_false ((cnt) > (cur))) \
1330	{ \	1980	{ \
1331	int ecb_unused ocur_ = (cur); \	1981	ecb_unused int ocur_ = (cur); \
1332	(base) = (type *)array_realloc \	1982	(base) = (type *)array_realloc \
1333	(sizeof (type), (base), &(cur), (cnt)); \	1983	(sizeof (type), (base), &(cur), (cnt)); \
1334	init ((base) + (ocur_), (cur) - ocur_); \	1984	init ((base) + (ocur_), (cur) - ocur_); \
1335	}	1985	}
1336		1986
…		…
1348	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	1998	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1349		1999
1350	/*****************************************************************************/	2000	/*****************************************************************************/
1351		2001
1352	/* dummy callback for pending events */	2002	/* dummy callback for pending events */
1353	static void noinline	2003	noinline
		2004	static void
1354	pendingcb (EV_P_ ev_prepare *w, int revents)	2005	pendingcb (EV_P_ ev_prepare *w, int revents)
1355	{	2006	{
1356	}	2007	}
1357		2008
1358	void noinline	2009	noinline
		2010	void
1359	ev_feed_event (EV_P_ void *w, int revents)	2011	ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1360	{	2012	{
1361	W w_ = (W)w;	2013	W w_ = (W)w;
1362	int pri = ABSPRI (w_);	2014	int pri = ABSPRI (w_);
1363		2015
1364	if (expect_false (w_->pending))	2016	if (expect_false (w_->pending))
1365	pendings [pri][w_->pending - 1].events |= revents;	2017	pendings [pri][w_->pending - 1].events |= revents;
1366	else	2018	else
1367	{	2019	{
1368	w_->pending = ++pendingcnt [pri];	2020	w_->pending = ++pendingcnt [pri];
1369	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	2021	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1370	pendings [pri][w_->pending - 1].w = w_;	2022	pendings [pri][w_->pending - 1].w = w_;
1371	pendings [pri][w_->pending - 1].events = revents;	2023	pendings [pri][w_->pending - 1].events = revents;
1372	}	2024	}
		2025
		2026	pendingpri = NUMPRI - 1;
1373	}	2027	}
1374		2028
1375	inline_speed void	2029	inline_speed void
1376	feed_reverse (EV_P_ W w)	2030	feed_reverse (EV_P_ W w)
1377	{	2031	{
1378	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);	2032	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1379	rfeeds [rfeedcnt++] = w;	2033	rfeeds [rfeedcnt++] = w;
1380	}	2034	}
1381		2035
1382	inline_size void	2036	inline_size void
1383	feed_reverse_done (EV_P_ int revents)	2037	feed_reverse_done (EV_P_ int revents)
…		…
1423	if (expect_true (!anfd->reify))	2077	if (expect_true (!anfd->reify))
1424	fd_event_nocheck (EV_A_ fd, revents);	2078	fd_event_nocheck (EV_A_ fd, revents);
1425	}	2079	}
1426		2080
1427	void	2081	void
1428	ev_feed_fd_event (EV_P_ int fd, int revents)	2082	ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1429	{	2083	{
1430	if (fd >= 0 && fd < anfdmax)	2084	if (fd >= 0 && fd < anfdmax)
1431	fd_event_nocheck (EV_A_ fd, revents);	2085	fd_event_nocheck (EV_A_ fd, revents);
1432	}	2086	}
1433		2087
…		…
1491		2145
1492	fdchangecnt = 0;	2146	fdchangecnt = 0;
1493	}	2147	}
1494		2148
1495	/* something about the given fd changed */	2149	/* something about the given fd changed */
1496	inline_size void	2150	inline_size
		2151	void
1497	fd_change (EV_P_ int fd, int flags)	2152	fd_change (EV_P_ int fd, int flags)
1498	{	2153	{
1499	unsigned char reify = anfds [fd].reify;	2154	unsigned char reify = anfds [fd].reify;
1500	anfds [fd].reify |= flags;	2155	anfds [fd].reify |= flags;
1501		2156
1502	if (expect_true (!reify))	2157	if (expect_true (!reify))
1503	{	2158	{
1504	++fdchangecnt;	2159	++fdchangecnt;
1505	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	2160	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1506	fdchanges [fdchangecnt - 1] = fd;	2161	fdchanges [fdchangecnt - 1] = fd;
1507	}	2162	}
1508	}	2163	}
1509		2164
1510	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	2165	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1511	inline_speed void ecb_cold	2166	inline_speed ecb_cold void
1512	fd_kill (EV_P_ int fd)	2167	fd_kill (EV_P_ int fd)
1513	{	2168	{
1514	ev_io *w;	2169	ev_io *w;
1515		2170
1516	while ((w = (ev_io *)anfds [fd].head))	2171	while ((w = (ev_io *)anfds [fd].head))
…		…
1519	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	2174	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1520	}	2175	}
1521	}	2176	}
1522		2177
1523	/* check whether the given fd is actually valid, for error recovery */	2178	/* check whether the given fd is actually valid, for error recovery */
1524	inline_size int ecb_cold	2179	inline_size ecb_cold int
1525	fd_valid (int fd)	2180	fd_valid (int fd)
1526	{	2181	{
1527	#ifdef _WIN32	2182	#ifdef _WIN32
1528	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2183	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1529	#else	2184	#else
1530	return fcntl (fd, F_GETFD) != -1;	2185	return fcntl (fd, F_GETFD) != -1;
1531	#endif	2186	#endif
1532	}	2187	}
1533		2188
1534	/* called on EBADF to verify fds */	2189	/* called on EBADF to verify fds */
1535	static void noinline ecb_cold	2190	noinline ecb_cold
		2191	static void
1536	fd_ebadf (EV_P)	2192	fd_ebadf (EV_P)
1537	{	2193	{
1538	int fd;	2194	int fd;
1539		2195
1540	for (fd = 0; fd < anfdmax; ++fd)	2196	for (fd = 0; fd < anfdmax; ++fd)
…		…
1542	if (!fd_valid (fd) && errno == EBADF)	2198	if (!fd_valid (fd) && errno == EBADF)
1543	fd_kill (EV_A_ fd);	2199	fd_kill (EV_A_ fd);
1544	}	2200	}
1545		2201
1546	/* called on ENOMEM in select/poll to kill some fds and retry */	2202	/* called on ENOMEM in select/poll to kill some fds and retry */
1547	static void noinline ecb_cold	2203	noinline ecb_cold
		2204	static void
1548	fd_enomem (EV_P)	2205	fd_enomem (EV_P)
1549	{	2206	{
1550	int fd;	2207	int fd;
1551		2208
1552	for (fd = anfdmax; fd--; )	2209	for (fd = anfdmax; fd--; )
…		…
1556	break;	2213	break;
1557	}	2214	}
1558	}	2215	}
1559		2216
1560	/* usually called after fork if backend needs to re-arm all fds from scratch */	2217	/* usually called after fork if backend needs to re-arm all fds from scratch */
1561	static void noinline	2218	noinline
		2219	static void
1562	fd_rearm_all (EV_P)	2220	fd_rearm_all (EV_P)
1563	{	2221	{
1564	int fd;	2222	int fd;
1565		2223
1566	for (fd = 0; fd < anfdmax; ++fd)	2224	for (fd = 0; fd < anfdmax; ++fd)
…		…
1747		2405
1748	/*****************************************************************************/	2406	/*****************************************************************************/
1749		2407
1750	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2408	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1751		2409
1752	static void noinline ecb_cold	2410	noinline ecb_cold
		2411	static void
1753	evpipe_init (EV_P)	2412	evpipe_init (EV_P)
1754	{	2413	{
1755	if (!ev_is_active (&pipe_w))	2414	if (!ev_is_active (&pipe_w))
1756	{	2415	{
		2416	int fds [2];
		2417
1757	# if EV_USE_EVENTFD	2418	# if EV_USE_EVENTFD
		2419	fds [0] = -1;
1758	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2420	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1759	if (evfd < 0 && errno == EINVAL)	2421	if (fds [1] < 0 && errno == EINVAL)
1760	evfd = eventfd (0, 0);	2422	fds [1] = eventfd (0, 0);
1761		2423
1762	if (evfd >= 0)	2424	if (fds [1] < 0)
		2425	# endif
1763	{	2426	{
		2427	while (pipe (fds))
		2428	ev_syserr ("(libev) error creating signal/async pipe");
		2429
		2430	fd_intern (fds [0]);
		2431	}
		2432
1764	evpipe [0] = -1;	2433	evpipe [0] = fds [0];
1765	fd_intern (evfd); /* doing it twice doesn't hurt */	2434
1766	ev_io_set (&pipe_w, evfd, EV_READ);	2435	if (evpipe [1] < 0)
		2436	evpipe [1] = fds [1]; /* first call, set write fd */
		2437	else
		2438	{
		2439	/* on subsequent calls, do not change evpipe [1] */
		2440	/* so that evpipe_write can always rely on its value. */
		2441	/* this branch does not do anything sensible on windows, */
		2442	/* so must not be executed on windows */
		2443
		2444	dup2 (fds [1], evpipe [1]);
		2445	close (fds [1]);
		2446	}
		2447
		2448	fd_intern (evpipe [1]);
		2449
		2450	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2451	ev_io_start (EV_A_ &pipe_w);
		2452	ev_unref (EV_A); /* watcher should not keep loop alive */
		2453	}
		2454	}
		2455
		2456	inline_speed void
		2457	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2458	{
		2459	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2460
		2461	if (expect_true (*flag))
		2462	return;
		2463
		2464	*flag = 1;
		2465	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2466
		2467	pipe_write_skipped = 1;
		2468
		2469	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2470
		2471	if (pipe_write_wanted)
		2472	{
		2473	int old_errno;
		2474
		2475	pipe_write_skipped = 0;
		2476	ECB_MEMORY_FENCE_RELEASE;
		2477
		2478	old_errno = errno; /* save errno because write will clobber it */
		2479
		2480	#if EV_USE_EVENTFD
		2481	if (evpipe [0] < 0)
		2482	{
		2483	uint64_t counter = 1;
		2484	write (evpipe [1], &counter, sizeof (uint64_t));
1767	}	2485	}
1768	else	2486	else
1769	# endif	2487	#endif
1770	{	2488	{
1771	while (pipe (evpipe))	2489	#ifdef _WIN32
1772	ev_syserr ("(libev) error creating signal/async pipe");	2490	WSABUF buf;
1773		2491	DWORD sent;
1774	fd_intern (evpipe [0]);	2492	buf.buf = (char *)&buf;
1775	fd_intern (evpipe [1]);	2493	buf.len = 1;
1776	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2494	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1777	}	2495	#else
1778
1779	ev_io_start (EV_A_ &pipe_w);
1780	ev_unref (EV_A); /* watcher should not keep loop alive */
1781	}
1782	}
1783
1784	inline_speed void
1785	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1786	{
1787	if (expect_true (*flag))
1788	return;
1789
1790	*flag = 1;
1791
1792	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1793
1794	pipe_write_skipped = 1;
1795
1796	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1797
1798	if (pipe_write_wanted)
1799	{
1800	int old_errno;
1801
1802	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1803
1804	old_errno = errno; /* save errno because write will clobber it */
1805
1806	#if EV_USE_EVENTFD
1807	if (evfd >= 0)
1808	{
1809	uint64_t counter = 1;
1810	write (evfd, &counter, sizeof (uint64_t));
1811	}
1812	else
1813	#endif
1814	{
1815	/* win32 people keep sending patches that change this write() to send() */
1816	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1817	/* so when you think this write should be a send instead, please find out */
1818	/* where your send() is from - it's definitely not the microsoft send, and */
1819	/* tell me. thank you. */
1820	write (evpipe [1], &(evpipe [1]), 1);	2496	write (evpipe [1], &(evpipe [1]), 1);
		2497	#endif
1821	}	2498	}
1822		2499
1823	errno = old_errno;	2500	errno = old_errno;
1824	}	2501	}
1825	}	2502	}
…		…
1832	int i;	2509	int i;
1833		2510
1834	if (revents & EV_READ)	2511	if (revents & EV_READ)
1835	{	2512	{
1836	#if EV_USE_EVENTFD	2513	#if EV_USE_EVENTFD
1837	if (evfd >= 0)	2514	if (evpipe [0] < 0)
1838	{	2515	{
1839	uint64_t counter;	2516	uint64_t counter;
1840	read (evfd, &counter, sizeof (uint64_t));	2517	read (evpipe [1], &counter, sizeof (uint64_t));
1841	}	2518	}
1842	else	2519	else
1843	#endif	2520	#endif
1844	{	2521	{
1845	char dummy;	2522	char dummy[4];
1846	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2523	#ifdef _WIN32
		2524	WSABUF buf;
		2525	DWORD recvd;
		2526	DWORD flags = 0;
		2527	buf.buf = dummy;
		2528	buf.len = sizeof (dummy);
		2529	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2530	#else
1847	read (evpipe [0], &dummy, 1);	2531	read (evpipe [0], &dummy, sizeof (dummy));
		2532	#endif
1848	}	2533	}
1849	}	2534	}
1850		2535
1851	pipe_write_skipped = 0;	2536	pipe_write_skipped = 0;
		2537
		2538	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1852		2539
1853	#if EV_SIGNAL_ENABLE	2540	#if EV_SIGNAL_ENABLE
1854	if (sig_pending)	2541	if (sig_pending)
1855	{	2542	{
1856	sig_pending = 0;	2543	sig_pending = 0;
		2544
		2545	ECB_MEMORY_FENCE;
1857		2546
1858	for (i = EV_NSIG - 1; i--; )	2547	for (i = EV_NSIG - 1; i--; )
1859	if (expect_false (signals [i].pending))	2548	if (expect_false (signals [i].pending))
1860	ev_feed_signal_event (EV_A_ i + 1);	2549	ev_feed_signal_event (EV_A_ i + 1);
1861	}	2550	}
…		…
1863		2552
1864	#if EV_ASYNC_ENABLE	2553	#if EV_ASYNC_ENABLE
1865	if (async_pending)	2554	if (async_pending)
1866	{	2555	{
1867	async_pending = 0;	2556	async_pending = 0;
		2557
		2558	ECB_MEMORY_FENCE;
1868		2559
1869	for (i = asynccnt; i--; )	2560	for (i = asynccnt; i--; )
1870	if (asyncs [i]->sent)	2561	if (asyncs [i]->sent)
1871	{	2562	{
1872	asyncs [i]->sent = 0;	2563	asyncs [i]->sent = 0;
		2564	ECB_MEMORY_FENCE_RELEASE;
1873	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2565	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1874	}	2566	}
1875	}	2567	}
1876	#endif	2568	#endif
1877	}	2569	}
1878		2570
1879	/*****************************************************************************/	2571	/*****************************************************************************/
1880		2572
1881	void	2573	void
1882	ev_feed_signal (int signum)	2574	ev_feed_signal (int signum) EV_NOEXCEPT
1883	{	2575	{
1884	#if EV_MULTIPLICITY	2576	#if EV_MULTIPLICITY
		2577	EV_P;
		2578	ECB_MEMORY_FENCE_ACQUIRE;
1885	EV_P = signals [signum - 1].loop;	2579	EV_A = signals [signum - 1].loop;
1886		2580
1887	if (!EV_A)	2581	if (!EV_A)
1888	return;	2582	return;
1889	#endif	2583	#endif
1890		2584
1891	if (!ev_active (&pipe_w))
1892	return;
1893
1894	signals [signum - 1].pending = 1;	2585	signals [signum - 1].pending = 1;
1895	evpipe_write (EV_A_ &sig_pending);	2586	evpipe_write (EV_A_ &sig_pending);
1896	}	2587	}
1897		2588
1898	static void	2589	static void
…		…
1903	#endif	2594	#endif
1904		2595
1905	ev_feed_signal (signum);	2596	ev_feed_signal (signum);
1906	}	2597	}
1907		2598
1908	void noinline	2599	noinline
		2600	void
1909	ev_feed_signal_event (EV_P_ int signum)	2601	ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1910	{	2602	{
1911	WL w;	2603	WL w;
1912		2604
1913	if (expect_false (signum <= 0 || signum > EV_NSIG))	2605	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1914	return;	2606	return;
1915		2607
1916	--signum;	2608	--signum;
1917		2609
1918	#if EV_MULTIPLICITY	2610	#if EV_MULTIPLICITY
…		…
1922	if (expect_false (signals [signum].loop != EV_A))	2614	if (expect_false (signals [signum].loop != EV_A))
1923	return;	2615	return;
1924	#endif	2616	#endif
1925		2617
1926	signals [signum].pending = 0;	2618	signals [signum].pending = 0;
		2619	ECB_MEMORY_FENCE_RELEASE;
1927		2620
1928	for (w = signals [signum].head; w; w = w->next)	2621	for (w = signals [signum].head; w; w = w->next)
1929	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2622	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1930	}	2623	}
1931		2624
…		…
2019	# include "ev_port.c"	2712	# include "ev_port.c"
2020	#endif	2713	#endif
2021	#if EV_USE_KQUEUE	2714	#if EV_USE_KQUEUE
2022	# include "ev_kqueue.c"	2715	# include "ev_kqueue.c"
2023	#endif	2716	#endif
		2717	#if EV_USE_LINUXAIO
		2718	# include "ev_linuxaio.c"
		2719	#endif
2024	#if EV_USE_EPOLL	2720	#if EV_USE_EPOLL
2025	# include "ev_epoll.c"	2721	# include "ev_epoll.c"
2026	#endif	2722	#endif
2027	#if EV_USE_POLL	2723	#if EV_USE_POLL
2028	# include "ev_poll.c"	2724	# include "ev_poll.c"
2029	#endif	2725	#endif
2030	#if EV_USE_SELECT	2726	#if EV_USE_SELECT
2031	# include "ev_select.c"	2727	# include "ev_select.c"
2032	#endif	2728	#endif
2033		2729
2034	int ecb_cold	2730	ecb_cold int
2035	ev_version_major (void)	2731	ev_version_major (void) EV_NOEXCEPT
2036	{	2732	{
2037	return EV_VERSION_MAJOR;	2733	return EV_VERSION_MAJOR;
2038	}	2734	}
2039		2735
2040	int ecb_cold	2736	ecb_cold int
2041	ev_version_minor (void)	2737	ev_version_minor (void) EV_NOEXCEPT
2042	{	2738	{
2043	return EV_VERSION_MINOR;	2739	return EV_VERSION_MINOR;
2044	}	2740	}
2045		2741
2046	/* return true if we are running with elevated privileges and should ignore env variables */	2742	/* return true if we are running with elevated privileges and should ignore env variables */
2047	int inline_size ecb_cold	2743	inline_size ecb_cold int
2048	enable_secure (void)	2744	enable_secure (void)
2049	{	2745	{
2050	#ifdef _WIN32	2746	#ifdef _WIN32
2051	return 0;	2747	return 0;
2052	#else	2748	#else
2053	return getuid () != geteuid ()	2749	return getuid () != geteuid ()
2054	|| getgid () != getegid ();	2750	|| getgid () != getegid ();
2055	#endif	2751	#endif
2056	}	2752	}
2057		2753
2058	unsigned int ecb_cold	2754	ecb_cold
		2755	unsigned int
2059	ev_supported_backends (void)	2756	ev_supported_backends (void) EV_NOEXCEPT
2060	{	2757	{
2061	unsigned int flags = 0;	2758	unsigned int flags = 0;
2062		2759
2063	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2760	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2064	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2761	if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2065	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;	2762	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		2763	if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2066	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;	2764	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2067	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2765	if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2068		2766
2069	return flags;	2767	return flags;
2070	}	2768	}
2071		2769
2072	unsigned int ecb_cold	2770	ecb_cold
		2771	unsigned int
2073	ev_recommended_backends (void)	2772	ev_recommended_backends (void) EV_NOEXCEPT
2074	{	2773	{
2075	unsigned int flags = ev_supported_backends ();	2774	unsigned int flags = ev_supported_backends ();
2076		2775
2077	#ifndef __NetBSD__	2776	#ifndef __NetBSD__
2078	/* kqueue is borked on everything but netbsd apparently */	2777	/* kqueue is borked on everything but netbsd apparently */
…		…
2089	#endif	2788	#endif
2090		2789
2091	return flags;	2790	return flags;
2092	}	2791	}
2093		2792
2094	unsigned int ecb_cold	2793	ecb_cold
		2794	unsigned int
2095	ev_embeddable_backends (void)	2795	ev_embeddable_backends (void) EV_NOEXCEPT
2096	{	2796	{
2097	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2797	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2098		2798
2099	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2799	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2100	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2800	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2102		2802
2103	return flags;	2803	return flags;
2104	}	2804	}
2105		2805
2106	unsigned int	2806	unsigned int
2107	ev_backend (EV_P)	2807	ev_backend (EV_P) EV_NOEXCEPT
2108	{	2808	{
2109	return backend;	2809	return backend;
2110	}	2810	}
2111		2811
2112	#if EV_FEATURE_API	2812	#if EV_FEATURE_API
2113	unsigned int	2813	unsigned int
2114	ev_iteration (EV_P)	2814	ev_iteration (EV_P) EV_NOEXCEPT
2115	{	2815	{
2116	return loop_count;	2816	return loop_count;
2117	}	2817	}
2118		2818
2119	unsigned int	2819	unsigned int
2120	ev_depth (EV_P)	2820	ev_depth (EV_P) EV_NOEXCEPT
2121	{	2821	{
2122	return loop_depth;	2822	return loop_depth;
2123	}	2823	}
2124		2824
2125	void	2825	void
2126	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2826	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2127	{	2827	{
2128	io_blocktime = interval;	2828	io_blocktime = interval;
2129	}	2829	}
2130		2830
2131	void	2831	void
2132	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2832	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2133	{	2833	{
2134	timeout_blocktime = interval;	2834	timeout_blocktime = interval;
2135	}	2835	}
2136		2836
2137	void	2837	void
2138	ev_set_userdata (EV_P_ void *data)	2838	ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2139	{	2839	{
2140	userdata = data;	2840	userdata = data;
2141	}	2841	}
2142		2842
2143	void *	2843	void *
2144	ev_userdata (EV_P)	2844	ev_userdata (EV_P) EV_NOEXCEPT
2145	{	2845	{
2146	return userdata;	2846	return userdata;
2147	}	2847	}
2148		2848
2149	void	2849	void
2150	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2850	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2151	{	2851	{
2152	invoke_cb = invoke_pending_cb;	2852	invoke_cb = invoke_pending_cb;
2153	}	2853	}
2154		2854
2155	void	2855	void
2156	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2856	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2157	{	2857	{
2158	release_cb = release;	2858	release_cb = release;
2159	acquire_cb = acquire;	2859	acquire_cb = acquire;
2160	}	2860	}
2161	#endif	2861	#endif
2162		2862
2163	/* initialise a loop structure, must be zero-initialised */	2863	/* initialise a loop structure, must be zero-initialised */
2164	static void noinline ecb_cold	2864	noinline ecb_cold
		2865	static void
2165	loop_init (EV_P_ unsigned int flags)	2866	loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2166	{	2867	{
2167	if (!backend)	2868	if (!backend)
2168	{	2869	{
2169	origflags = flags;	2870	origflags = flags;
2170		2871
…		…
2215	#if EV_ASYNC_ENABLE	2916	#if EV_ASYNC_ENABLE
2216	async_pending = 0;	2917	async_pending = 0;
2217	#endif	2918	#endif
2218	pipe_write_skipped = 0;	2919	pipe_write_skipped = 0;
2219	pipe_write_wanted = 0;	2920	pipe_write_wanted = 0;
		2921	evpipe [0] = -1;
		2922	evpipe [1] = -1;
2220	#if EV_USE_INOTIFY	2923	#if EV_USE_INOTIFY
2221	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2924	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2222	#endif	2925	#endif
2223	#if EV_USE_SIGNALFD	2926	#if EV_USE_SIGNALFD
2224	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2927	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2226		2929
2227	if (!(flags & EVBACKEND_MASK))	2930	if (!(flags & EVBACKEND_MASK))
2228	flags |= ev_recommended_backends ();	2931	flags |= ev_recommended_backends ();
2229		2932
2230	#if EV_USE_IOCP	2933	#if EV_USE_IOCP
2231	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);	2934	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2232	#endif	2935	#endif
2233	#if EV_USE_PORT	2936	#if EV_USE_PORT
2234	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	2937	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2235	#endif	2938	#endif
2236	#if EV_USE_KQUEUE	2939	#if EV_USE_KQUEUE
2237	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	2940	if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
		2941	#endif
		2942	#if EV_USE_LINUXAIO
		2943	if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2238	#endif	2944	#endif
2239	#if EV_USE_EPOLL	2945	#if EV_USE_EPOLL
2240	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);	2946	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2241	#endif	2947	#endif
2242	#if EV_USE_POLL	2948	#if EV_USE_POLL
2243	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);	2949	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2244	#endif	2950	#endif
2245	#if EV_USE_SELECT	2951	#if EV_USE_SELECT
2246	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	2952	if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2247	#endif	2953	#endif
2248		2954
2249	ev_prepare_init (&pending_w, pendingcb);	2955	ev_prepare_init (&pending_w, pendingcb);
2250		2956
2251	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2957	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
…		…
2254	#endif	2960	#endif
2255	}	2961	}
2256	}	2962	}
2257		2963
2258	/* free up a loop structure */	2964	/* free up a loop structure */
2259	void ecb_cold	2965	ecb_cold
		2966	void
2260	ev_loop_destroy (EV_P)	2967	ev_loop_destroy (EV_P)
2261	{	2968	{
2262	int i;	2969	int i;
2263		2970
2264	#if EV_MULTIPLICITY	2971	#if EV_MULTIPLICITY
…		…
2275	EV_INVOKE_PENDING;	2982	EV_INVOKE_PENDING;
2276	}	2983	}
2277	#endif	2984	#endif
2278		2985
2279	#if EV_CHILD_ENABLE	2986	#if EV_CHILD_ENABLE
2280	if (ev_is_active (&childev))	2987	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2281	{	2988	{
2282	ev_ref (EV_A); /* child watcher */	2989	ev_ref (EV_A); /* child watcher */
2283	ev_signal_stop (EV_A_ &childev);	2990	ev_signal_stop (EV_A_ &childev);
2284	}	2991	}
2285	#endif	2992	#endif
…		…
2287	if (ev_is_active (&pipe_w))	2994	if (ev_is_active (&pipe_w))
2288	{	2995	{
2289	/*ev_ref (EV_A);*/	2996	/*ev_ref (EV_A);*/
2290	/*ev_io_stop (EV_A_ &pipe_w);*/	2997	/*ev_io_stop (EV_A_ &pipe_w);*/
2291		2998
2292	#if EV_USE_EVENTFD
2293	if (evfd >= 0)
2294	close (evfd);
2295	#endif
2296
2297	if (evpipe [0] >= 0)
2298	{
2299	EV_WIN32_CLOSE_FD (evpipe [0]);	2999	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2300	EV_WIN32_CLOSE_FD (evpipe [1]);	3000	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2301	}
2302	}	3001	}
2303		3002
2304	#if EV_USE_SIGNALFD	3003	#if EV_USE_SIGNALFD
2305	if (ev_is_active (&sigfd_w))	3004	if (ev_is_active (&sigfd_w))
2306	close (sigfd);	3005	close (sigfd);
…		…
2313		3012
2314	if (backend_fd >= 0)	3013	if (backend_fd >= 0)
2315	close (backend_fd);	3014	close (backend_fd);
2316		3015
2317	#if EV_USE_IOCP	3016	#if EV_USE_IOCP
2318	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);	3017	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2319	#endif	3018	#endif
2320	#if EV_USE_PORT	3019	#if EV_USE_PORT
2321	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	3020	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2322	#endif	3021	#endif
2323	#if EV_USE_KQUEUE	3022	#if EV_USE_KQUEUE
2324	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	3023	if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
		3024	#endif
		3025	#if EV_USE_LINUXAIO
		3026	if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2325	#endif	3027	#endif
2326	#if EV_USE_EPOLL	3028	#if EV_USE_EPOLL
2327	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);	3029	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2328	#endif	3030	#endif
2329	#if EV_USE_POLL	3031	#if EV_USE_POLL
2330	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);	3032	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2331	#endif	3033	#endif
2332	#if EV_USE_SELECT	3034	#if EV_USE_SELECT
2333	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	3035	if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2334	#endif	3036	#endif
2335		3037
2336	for (i = NUMPRI; i--; )	3038	for (i = NUMPRI; i--; )
2337	{	3039	{
2338	array_free (pending, [i]);	3040	array_free (pending, [i]);
…		…
2380		3082
2381	inline_size void	3083	inline_size void
2382	loop_fork (EV_P)	3084	loop_fork (EV_P)
2383	{	3085	{
2384	#if EV_USE_PORT	3086	#if EV_USE_PORT
2385	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	3087	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2386	#endif	3088	#endif
2387	#if EV_USE_KQUEUE	3089	#if EV_USE_KQUEUE
2388	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	3090	if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
		3091	#endif
		3092	#if EV_USE_LINUXAIO
		3093	if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2389	#endif	3094	#endif
2390	#if EV_USE_EPOLL	3095	#if EV_USE_EPOLL
2391	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	3096	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2392	#endif	3097	#endif
2393	#if EV_USE_INOTIFY	3098	#if EV_USE_INOTIFY
2394	infy_fork (EV_A);	3099	infy_fork (EV_A);
2395	#endif	3100	#endif
2396		3101
		3102	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2397	if (ev_is_active (&pipe_w))	3103	if (ev_is_active (&pipe_w) && postfork != 2)
2398	{	3104	{
2399	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	3105	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2400		3106
2401	ev_ref (EV_A);	3107	ev_ref (EV_A);
2402	ev_io_stop (EV_A_ &pipe_w);	3108	ev_io_stop (EV_A_ &pipe_w);
2403		3109
2404	#if EV_USE_EVENTFD
2405	if (evfd >= 0)
2406	close (evfd);
2407	#endif
2408
2409	if (evpipe [0] >= 0)	3110	if (evpipe [0] >= 0)
2410	{
2411	EV_WIN32_CLOSE_FD (evpipe [0]);	3111	EV_WIN32_CLOSE_FD (evpipe [0]);
2412	EV_WIN32_CLOSE_FD (evpipe [1]);
2413	}
2414		3112
2415	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2416	evpipe_init (EV_A);	3113	evpipe_init (EV_A);
2417	/* now iterate over everything, in case we missed something */	3114	/* iterate over everything, in case we missed something before */
2418	pipecb (EV_A_ &pipe_w, EV_READ);	3115	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2419	#endif
2420	}	3116	}
		3117	#endif
2421		3118
2422	postfork = 0;	3119	postfork = 0;
2423	}	3120	}
2424		3121
2425	#if EV_MULTIPLICITY	3122	#if EV_MULTIPLICITY
2426		3123
		3124	ecb_cold
2427	struct ev_loop * ecb_cold	3125	struct ev_loop *
2428	ev_loop_new (unsigned int flags)	3126	ev_loop_new (unsigned int flags) EV_NOEXCEPT
2429	{	3127	{
2430	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3128	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2431		3129
2432	memset (EV_A, 0, sizeof (struct ev_loop));	3130	memset (EV_A, 0, sizeof (struct ev_loop));
2433	loop_init (EV_A_ flags);	3131	loop_init (EV_A_ flags);
…		…
2440	}	3138	}
2441		3139
2442	#endif /* multiplicity */	3140	#endif /* multiplicity */
2443		3141
2444	#if EV_VERIFY	3142	#if EV_VERIFY
2445	static void noinline ecb_cold	3143	noinline ecb_cold
		3144	static void
2446	verify_watcher (EV_P_ W w)	3145	verify_watcher (EV_P_ W w)
2447	{	3146	{
2448	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	3147	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2449		3148
2450	if (w->pending)	3149	if (w->pending)
2451	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	3150	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2452	}	3151	}
2453		3152
2454	static void noinline ecb_cold	3153	noinline ecb_cold
		3154	static void
2455	verify_heap (EV_P_ ANHE *heap, int N)	3155	verify_heap (EV_P_ ANHE *heap, int N)
2456	{	3156	{
2457	int i;	3157	int i;
2458		3158
2459	for (i = HEAP0; i < N + HEAP0; ++i)	3159	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2464		3164
2465	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3165	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2466	}	3166	}
2467	}	3167	}
2468		3168
2469	static void noinline ecb_cold	3169	noinline ecb_cold
		3170	static void
2470	array_verify (EV_P_ W *ws, int cnt)	3171	array_verify (EV_P_ W *ws, int cnt)
2471	{	3172	{
2472	while (cnt--)	3173	while (cnt--)
2473	{	3174	{
2474	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3175	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2477	}	3178	}
2478	#endif	3179	#endif
2479		3180
2480	#if EV_FEATURE_API	3181	#if EV_FEATURE_API
2481	void ecb_cold	3182	void ecb_cold
2482	ev_verify (EV_P)	3183	ev_verify (EV_P) EV_NOEXCEPT
2483	{	3184	{
2484	#if EV_VERIFY	3185	#if EV_VERIFY
2485	int i;	3186	int i;
2486	WL w;	3187	WL w, w2;
2487		3188
2488	assert (activecnt >= -1);	3189	assert (activecnt >= -1);
2489		3190
2490	assert (fdchangemax >= fdchangecnt);	3191	assert (fdchangemax >= fdchangecnt);
2491	for (i = 0; i < fdchangecnt; ++i)	3192	for (i = 0; i < fdchangecnt; ++i)
2492	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	3193	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2493		3194
2494	assert (anfdmax >= 0);	3195	assert (anfdmax >= 0);
2495	for (i = 0; i < anfdmax; ++i)	3196	for (i = 0; i < anfdmax; ++i)
		3197	{
		3198	int j = 0;
		3199
2496	for (w = anfds [i].head; w; w = w->next)	3200	for (w = w2 = anfds [i].head; w; w = w->next)
2497	{	3201	{
2498	verify_watcher (EV_A_ (W)w);	3202	verify_watcher (EV_A_ (W)w);
		3203
		3204	if (j++ & 1)
		3205	{
		3206	assert (("libev: io watcher list contains a loop", w != w2));
		3207	w2 = w2->next;
		3208	}
		3209
2499	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	3210	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2500	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	3211	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2501	}	3212	}
		3213	}
2502		3214
2503	assert (timermax >= timercnt);	3215	assert (timermax >= timercnt);
2504	verify_heap (EV_A_ timers, timercnt);	3216	verify_heap (EV_A_ timers, timercnt);
2505		3217
2506	#if EV_PERIODIC_ENABLE	3218	#if EV_PERIODIC_ENABLE
…		…
2552	#endif	3264	#endif
2553	}	3265	}
2554	#endif	3266	#endif
2555		3267
2556	#if EV_MULTIPLICITY	3268	#if EV_MULTIPLICITY
		3269	ecb_cold
2557	struct ev_loop * ecb_cold	3270	struct ev_loop *
2558	#else	3271	#else
2559	int	3272	int
2560	#endif	3273	#endif
2561	ev_default_loop (unsigned int flags)	3274	ev_default_loop (unsigned int flags) EV_NOEXCEPT
2562	{	3275	{
2563	if (!ev_default_loop_ptr)	3276	if (!ev_default_loop_ptr)
2564	{	3277	{
2565	#if EV_MULTIPLICITY	3278	#if EV_MULTIPLICITY
2566	EV_P = ev_default_loop_ptr = &default_loop_struct;	3279	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2585		3298
2586	return ev_default_loop_ptr;	3299	return ev_default_loop_ptr;
2587	}	3300	}
2588		3301
2589	void	3302	void
2590	ev_loop_fork (EV_P)	3303	ev_loop_fork (EV_P) EV_NOEXCEPT
2591	{	3304	{
2592	postfork = 1; /* must be in line with ev_default_fork */	3305	postfork = 1;
2593	}	3306	}
2594		3307
2595	/*****************************************************************************/	3308	/*****************************************************************************/
2596		3309
2597	void	3310	void
…		…
2599	{	3312	{
2600	EV_CB_INVOKE ((W)w, revents);	3313	EV_CB_INVOKE ((W)w, revents);
2601	}	3314	}
2602		3315
2603	unsigned int	3316	unsigned int
2604	ev_pending_count (EV_P)	3317	ev_pending_count (EV_P) EV_NOEXCEPT
2605	{	3318	{
2606	int pri;	3319	int pri;
2607	unsigned int count = 0;	3320	unsigned int count = 0;
2608		3321
2609	for (pri = NUMPRI; pri--; )	3322	for (pri = NUMPRI; pri--; )
2610	count += pendingcnt [pri];	3323	count += pendingcnt [pri];
2611		3324
2612	return count;	3325	return count;
2613	}	3326	}
2614		3327
2615	void noinline	3328	noinline
		3329	void
2616	ev_invoke_pending (EV_P)	3330	ev_invoke_pending (EV_P)
2617	{	3331	{
2618	int pri;	3332	pendingpri = NUMPRI;
2619		3333
2620	for (pri = NUMPRI; pri--; )	3334	do
		3335	{
		3336	--pendingpri;
		3337
		3338	/* pendingpri possibly gets modified in the inner loop */
2621	while (pendingcnt [pri])	3339	while (pendingcnt [pendingpri])
2622	{	3340	{
2623	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	3341	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2624		3342
2625	p->w->pending = 0;	3343	p->w->pending = 0;
2626	EV_CB_INVOKE (p->w, p->events);	3344	EV_CB_INVOKE (p->w, p->events);
2627	EV_FREQUENT_CHECK;	3345	EV_FREQUENT_CHECK;
2628	}	3346	}
		3347	}
		3348	while (pendingpri);
2629	}	3349	}
2630		3350
2631	#if EV_IDLE_ENABLE	3351	#if EV_IDLE_ENABLE
2632	/* make idle watchers pending. this handles the "call-idle */	3352	/* make idle watchers pending. this handles the "call-idle */
2633	/* only when higher priorities are idle" logic */	3353	/* only when higher priorities are idle" logic */
…		…
2691	}	3411	}
2692	}	3412	}
2693		3413
2694	#if EV_PERIODIC_ENABLE	3414	#if EV_PERIODIC_ENABLE
2695		3415
2696	static void noinline	3416	noinline
		3417	static void
2697	periodic_recalc (EV_P_ ev_periodic *w)	3418	periodic_recalc (EV_P_ ev_periodic *w)
2698	{	3419	{
2699	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3420	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2700	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);	3421	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2701		3422
…		…
2723	{	3444	{
2724	EV_FREQUENT_CHECK;	3445	EV_FREQUENT_CHECK;
2725		3446
2726	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3447	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2727	{	3448	{
2728	int feed_count = 0;
2729
2730	do	3449	do
2731	{	3450	{
2732	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3451	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2733		3452
2734	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3453	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2761	}	3480	}
2762	}	3481	}
2763		3482
2764	/* simply recalculate all periodics */	3483	/* simply recalculate all periodics */
2765	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3484	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2766	static void noinline ecb_cold	3485	noinline ecb_cold
		3486	static void
2767	periodics_reschedule (EV_P)	3487	periodics_reschedule (EV_P)
2768	{	3488	{
2769	int i;	3489	int i;
2770		3490
2771	/* adjust periodics after time jump */	3491	/* adjust periodics after time jump */
…		…
2784	reheap (periodics, periodiccnt);	3504	reheap (periodics, periodiccnt);
2785	}	3505	}
2786	#endif	3506	#endif
2787		3507
2788	/* adjust all timers by a given offset */	3508	/* adjust all timers by a given offset */
2789	static void noinline ecb_cold	3509	noinline ecb_cold
		3510	static void
2790	timers_reschedule (EV_P_ ev_tstamp adjust)	3511	timers_reschedule (EV_P_ ev_tstamp adjust)
2791	{	3512	{
2792	int i;	3513	int i;
2793		3514
2794	for (i = 0; i < timercnt; ++i)	3515	for (i = 0; i < timercnt; ++i)
…		…
2868		3589
2869	mn_now = ev_rt_now;	3590	mn_now = ev_rt_now;
2870	}	3591	}
2871	}	3592	}
2872		3593
2873	void	3594	int
2874	ev_run (EV_P_ int flags)	3595	ev_run (EV_P_ int flags)
2875	{	3596	{
2876	#if EV_FEATURE_API	3597	#if EV_FEATURE_API
2877	++loop_depth;	3598	++loop_depth;
2878	#endif	3599	#endif
…		…
2991	#endif	3712	#endif
2992	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3713	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2993	backend_poll (EV_A_ waittime);	3714	backend_poll (EV_A_ waittime);
2994	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3715	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2995		3716
2996	pipe_write_wanted = 0; /* just an optimsiation, no fence needed */	3717	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2997		3718
		3719	ECB_MEMORY_FENCE_ACQUIRE;
2998	if (pipe_write_skipped)	3720	if (pipe_write_skipped)
2999	{	3721	{
3000	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3722	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3001	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3723	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3002	}	3724	}
…		…
3035	loop_done = EVBREAK_CANCEL;	3757	loop_done = EVBREAK_CANCEL;
3036		3758
3037	#if EV_FEATURE_API	3759	#if EV_FEATURE_API
3038	--loop_depth;	3760	--loop_depth;
3039	#endif	3761	#endif
3040	}
3041		3762
		3763	return activecnt;
		3764	}
		3765
3042	void	3766	void
3043	ev_break (EV_P_ int how)	3767	ev_break (EV_P_ int how) EV_NOEXCEPT
3044	{	3768	{
3045	loop_done = how;	3769	loop_done = how;
3046	}	3770	}
3047		3771
3048	void	3772	void
3049	ev_ref (EV_P)	3773	ev_ref (EV_P) EV_NOEXCEPT
3050	{	3774	{
3051	++activecnt;	3775	++activecnt;
3052	}	3776	}
3053		3777
3054	void	3778	void
3055	ev_unref (EV_P)	3779	ev_unref (EV_P) EV_NOEXCEPT
3056	{	3780	{
3057	--activecnt;	3781	--activecnt;
3058	}	3782	}
3059		3783
3060	void	3784	void
3061	ev_now_update (EV_P)	3785	ev_now_update (EV_P) EV_NOEXCEPT
3062	{	3786	{
3063	time_update (EV_A_ 1e100);	3787	time_update (EV_A_ 1e100);
3064	}	3788	}
3065		3789
3066	void	3790	void
3067	ev_suspend (EV_P)	3791	ev_suspend (EV_P) EV_NOEXCEPT
3068	{	3792	{
3069	ev_now_update (EV_A);	3793	ev_now_update (EV_A);
3070	}	3794	}
3071		3795
3072	void	3796	void
3073	ev_resume (EV_P)	3797	ev_resume (EV_P) EV_NOEXCEPT
3074	{	3798	{
3075	ev_tstamp mn_prev = mn_now;	3799	ev_tstamp mn_prev = mn_now;
3076		3800
3077	ev_now_update (EV_A);	3801	ev_now_update (EV_A);
3078	timers_reschedule (EV_A_ mn_now - mn_prev);	3802	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3117	w->pending = 0;	3841	w->pending = 0;
3118	}	3842	}
3119	}	3843	}
3120		3844
3121	int	3845	int
3122	ev_clear_pending (EV_P_ void *w)	3846	ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3123	{	3847	{
3124	W w_ = (W)w;	3848	W w_ = (W)w;
3125	int pending = w_->pending;	3849	int pending = w_->pending;
3126		3850
3127	if (expect_true (pending))	3851	if (expect_true (pending))
…		…
3159	w->active = 0;	3883	w->active = 0;
3160	}	3884	}
3161		3885
3162	/*****************************************************************************/	3886	/*****************************************************************************/
3163		3887
3164	void noinline	3888	noinline
		3889	void
3165	ev_io_start (EV_P_ ev_io *w)	3890	ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3166	{	3891	{
3167	int fd = w->fd;	3892	int fd = w->fd;
3168		3893
3169	if (expect_false (ev_is_active (w)))	3894	if (expect_false (ev_is_active (w)))
3170	return;	3895	return;
…		…
3173	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	3898	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3174		3899
3175	EV_FREQUENT_CHECK;	3900	EV_FREQUENT_CHECK;
3176		3901
3177	ev_start (EV_A_ (W)w, 1);	3902	ev_start (EV_A_ (W)w, 1);
3178	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3903	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3179	wlist_add (&anfds[fd].head, (WL)w);	3904	wlist_add (&anfds[fd].head, (WL)w);
		3905
		3906	/* common bug, apparently */
		3907	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3180		3908
3181	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3909	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3182	w->events &= ~EV__IOFDSET;	3910	w->events &= ~EV__IOFDSET;
3183		3911
3184	EV_FREQUENT_CHECK;	3912	EV_FREQUENT_CHECK;
3185	}	3913	}
3186		3914
3187	void noinline	3915	noinline
		3916	void
3188	ev_io_stop (EV_P_ ev_io *w)	3917	ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3189	{	3918	{
3190	clear_pending (EV_A_ (W)w);	3919	clear_pending (EV_A_ (W)w);
3191	if (expect_false (!ev_is_active (w)))	3920	if (expect_false (!ev_is_active (w)))
3192	return;	3921	return;
3193		3922
…		…
3201	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	3930	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3202		3931
3203	EV_FREQUENT_CHECK;	3932	EV_FREQUENT_CHECK;
3204	}	3933	}
3205		3934
3206	void noinline	3935	noinline
		3936	void
3207	ev_timer_start (EV_P_ ev_timer *w)	3937	ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3208	{	3938	{
3209	if (expect_false (ev_is_active (w)))	3939	if (expect_false (ev_is_active (w)))
3210	return;	3940	return;
3211		3941
3212	ev_at (w) += mn_now;	3942	ev_at (w) += mn_now;
…		…
3215		3945
3216	EV_FREQUENT_CHECK;	3946	EV_FREQUENT_CHECK;
3217		3947
3218	++timercnt;	3948	++timercnt;
3219	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	3949	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3220	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	3950	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3221	ANHE_w (timers [ev_active (w)]) = (WT)w;	3951	ANHE_w (timers [ev_active (w)]) = (WT)w;
3222	ANHE_at_cache (timers [ev_active (w)]);	3952	ANHE_at_cache (timers [ev_active (w)]);
3223	upheap (timers, ev_active (w));	3953	upheap (timers, ev_active (w));
3224		3954
3225	EV_FREQUENT_CHECK;	3955	EV_FREQUENT_CHECK;
3226		3956
3227	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3957	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3228	}	3958	}
3229		3959
3230	void noinline	3960	noinline
		3961	void
3231	ev_timer_stop (EV_P_ ev_timer *w)	3962	ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3232	{	3963	{
3233	clear_pending (EV_A_ (W)w);	3964	clear_pending (EV_A_ (W)w);
3234	if (expect_false (!ev_is_active (w)))	3965	if (expect_false (!ev_is_active (w)))
3235	return;	3966	return;
3236		3967
…		…
3255	ev_stop (EV_A_ (W)w);	3986	ev_stop (EV_A_ (W)w);
3256		3987
3257	EV_FREQUENT_CHECK;	3988	EV_FREQUENT_CHECK;
3258	}	3989	}
3259		3990
3260	void noinline	3991	noinline
		3992	void
3261	ev_timer_again (EV_P_ ev_timer *w)	3993	ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3262	{	3994	{
3263	EV_FREQUENT_CHECK;	3995	EV_FREQUENT_CHECK;
		3996
		3997	clear_pending (EV_A_ (W)w);
3264		3998
3265	if (ev_is_active (w))	3999	if (ev_is_active (w))
3266	{	4000	{
3267	if (w->repeat)	4001	if (w->repeat)
3268	{	4002	{
…		…
3281		4015
3282	EV_FREQUENT_CHECK;	4016	EV_FREQUENT_CHECK;
3283	}	4017	}
3284		4018
3285	ev_tstamp	4019	ev_tstamp
3286	ev_timer_remaining (EV_P_ ev_timer *w)	4020	ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3287	{	4021	{
3288	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	4022	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3289	}	4023	}
3290		4024
3291	#if EV_PERIODIC_ENABLE	4025	#if EV_PERIODIC_ENABLE
3292	void noinline	4026	noinline
		4027	void
3293	ev_periodic_start (EV_P_ ev_periodic *w)	4028	ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3294	{	4029	{
3295	if (expect_false (ev_is_active (w)))	4030	if (expect_false (ev_is_active (w)))
3296	return;	4031	return;
3297		4032
3298	if (w->reschedule_cb)	4033	if (w->reschedule_cb)
…		…
3307		4042
3308	EV_FREQUENT_CHECK;	4043	EV_FREQUENT_CHECK;
3309		4044
3310	++periodiccnt;	4045	++periodiccnt;
3311	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);	4046	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3312	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	4047	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3313	ANHE_w (periodics [ev_active (w)]) = (WT)w;	4048	ANHE_w (periodics [ev_active (w)]) = (WT)w;
3314	ANHE_at_cache (periodics [ev_active (w)]);	4049	ANHE_at_cache (periodics [ev_active (w)]);
3315	upheap (periodics, ev_active (w));	4050	upheap (periodics, ev_active (w));
3316		4051
3317	EV_FREQUENT_CHECK;	4052	EV_FREQUENT_CHECK;
3318		4053
3319	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	4054	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3320	}	4055	}
3321		4056
3322	void noinline	4057	noinline
		4058	void
3323	ev_periodic_stop (EV_P_ ev_periodic *w)	4059	ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3324	{	4060	{
3325	clear_pending (EV_A_ (W)w);	4061	clear_pending (EV_A_ (W)w);
3326	if (expect_false (!ev_is_active (w)))	4062	if (expect_false (!ev_is_active (w)))
3327	return;	4063	return;
3328		4064
…		…
3345	ev_stop (EV_A_ (W)w);	4081	ev_stop (EV_A_ (W)w);
3346		4082
3347	EV_FREQUENT_CHECK;	4083	EV_FREQUENT_CHECK;
3348	}	4084	}
3349		4085
3350	void noinline	4086	noinline
		4087	void
3351	ev_periodic_again (EV_P_ ev_periodic *w)	4088	ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3352	{	4089	{
3353	/* TODO: use adjustheap and recalculation */	4090	/* TODO: use adjustheap and recalculation */
3354	ev_periodic_stop (EV_A_ w);	4091	ev_periodic_stop (EV_A_ w);
3355	ev_periodic_start (EV_A_ w);	4092	ev_periodic_start (EV_A_ w);
3356	}	4093	}
…		…
3360	# define SA_RESTART 0	4097	# define SA_RESTART 0
3361	#endif	4098	#endif
3362		4099
3363	#if EV_SIGNAL_ENABLE	4100	#if EV_SIGNAL_ENABLE
3364		4101
3365	void noinline	4102	noinline
		4103	void
3366	ev_signal_start (EV_P_ ev_signal *w)	4104	ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3367	{	4105	{
3368	if (expect_false (ev_is_active (w)))	4106	if (expect_false (ev_is_active (w)))
3369	return;	4107	return;
3370		4108
3371	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	4109	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3373	#if EV_MULTIPLICITY	4111	#if EV_MULTIPLICITY
3374	assert (("libev: a signal must not be attached to two different loops",	4112	assert (("libev: a signal must not be attached to two different loops",
3375	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	4113	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3376		4114
3377	signals [w->signum - 1].loop = EV_A;	4115	signals [w->signum - 1].loop = EV_A;
		4116	ECB_MEMORY_FENCE_RELEASE;
3378	#endif	4117	#endif
3379		4118
3380	EV_FREQUENT_CHECK;	4119	EV_FREQUENT_CHECK;
3381		4120
3382	#if EV_USE_SIGNALFD	4121	#if EV_USE_SIGNALFD
…		…
3441	}	4180	}
3442		4181
3443	EV_FREQUENT_CHECK;	4182	EV_FREQUENT_CHECK;
3444	}	4183	}
3445		4184
3446	void noinline	4185	noinline
		4186	void
3447	ev_signal_stop (EV_P_ ev_signal *w)	4187	ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3448	{	4188	{
3449	clear_pending (EV_A_ (W)w);	4189	clear_pending (EV_A_ (W)w);
3450	if (expect_false (!ev_is_active (w)))	4190	if (expect_false (!ev_is_active (w)))
3451	return;	4191	return;
3452		4192
…		…
3483	#endif	4223	#endif
3484		4224
3485	#if EV_CHILD_ENABLE	4225	#if EV_CHILD_ENABLE
3486		4226
3487	void	4227	void
3488	ev_child_start (EV_P_ ev_child *w)	4228	ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3489	{	4229	{
3490	#if EV_MULTIPLICITY	4230	#if EV_MULTIPLICITY
3491	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	4231	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3492	#endif	4232	#endif
3493	if (expect_false (ev_is_active (w)))	4233	if (expect_false (ev_is_active (w)))
…		…
3500		4240
3501	EV_FREQUENT_CHECK;	4241	EV_FREQUENT_CHECK;
3502	}	4242	}
3503		4243
3504	void	4244	void
3505	ev_child_stop (EV_P_ ev_child *w)	4245	ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3506	{	4246	{
3507	clear_pending (EV_A_ (W)w);	4247	clear_pending (EV_A_ (W)w);
3508	if (expect_false (!ev_is_active (w)))	4248	if (expect_false (!ev_is_active (w)))
3509	return;	4249	return;
3510		4250
…		…
3527		4267
3528	#define DEF_STAT_INTERVAL 5.0074891	4268	#define DEF_STAT_INTERVAL 5.0074891
3529	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4269	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3530	#define MIN_STAT_INTERVAL 0.1074891	4270	#define MIN_STAT_INTERVAL 0.1074891
3531		4271
3532	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4272	noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3533		4273
3534	#if EV_USE_INOTIFY	4274	#if EV_USE_INOTIFY
3535		4275
3536	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */	4276	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3537	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4277	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3538		4278
3539	static void noinline	4279	noinline
		4280	static void
3540	infy_add (EV_P_ ev_stat *w)	4281	infy_add (EV_P_ ev_stat *w)
3541	{	4282	{
3542	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);	4283	w->wd = inotify_add_watch (fs_fd, w->path,
		4284	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		4285	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		4286	| IN_DONT_FOLLOW | IN_MASK_ADD);
3543		4287
3544	if (w->wd >= 0)	4288	if (w->wd >= 0)
3545	{	4289	{
3546	struct statfs sfs;	4290	struct statfs sfs;
3547		4291
…		…
3551		4295
3552	if (!fs_2625)	4296	if (!fs_2625)
3553	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	4297	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3554	else if (!statfs (w->path, &sfs)	4298	else if (!statfs (w->path, &sfs)
3555	&& (sfs.f_type == 0x1373 /* devfs */	4299	&& (sfs.f_type == 0x1373 /* devfs */
		4300	|| sfs.f_type == 0x4006 /* fat */
		4301	|| sfs.f_type == 0x4d44 /* msdos */
3556	|| sfs.f_type == 0xEF53 /* ext2/3 */	4302	|| sfs.f_type == 0xEF53 /* ext2/3 */
		4303	|| sfs.f_type == 0x72b6 /* jffs2 */
		4304	|| sfs.f_type == 0x858458f6 /* ramfs */
		4305	|| sfs.f_type == 0x5346544e /* ntfs */
3557	|| sfs.f_type == 0x3153464a /* jfs */	4306	|| sfs.f_type == 0x3153464a /* jfs */
		4307	|| sfs.f_type == 0x9123683e /* btrfs */
3558	|| sfs.f_type == 0x52654973 /* reiser3 */	4308	|| sfs.f_type == 0x52654973 /* reiser3 */
3559	|| sfs.f_type == 0x01021994 /* tempfs */	4309	|| sfs.f_type == 0x01021994 /* tmpfs */
3560	|| sfs.f_type == 0x58465342 /* xfs */))	4310	|| sfs.f_type == 0x58465342 /* xfs */))
3561	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	4311	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3562	else	4312	else
3563	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	4313	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3564	}	4314	}
…		…
3599	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4349	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3600	ev_timer_again (EV_A_ &w->timer);	4350	ev_timer_again (EV_A_ &w->timer);
3601	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4351	if (ev_is_active (&w->timer)) ev_unref (EV_A);
3602	}	4352	}
3603		4353
3604	static void noinline	4354	noinline
		4355	static void
3605	infy_del (EV_P_ ev_stat *w)	4356	infy_del (EV_P_ ev_stat *w)
3606	{	4357	{
3607	int slot;	4358	int slot;
3608	int wd = w->wd;	4359	int wd = w->wd;
3609		4360
…		…
3616		4367
3617	/* remove this watcher, if others are watching it, they will rearm */	4368	/* remove this watcher, if others are watching it, they will rearm */
3618	inotify_rm_watch (fs_fd, wd);	4369	inotify_rm_watch (fs_fd, wd);
3619	}	4370	}
3620		4371
3621	static void noinline	4372	noinline
		4373	static void
3622	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4374	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3623	{	4375	{
3624	if (slot < 0)	4376	if (slot < 0)
3625	/* overflow, need to check for all hash slots */	4377	/* overflow, need to check for all hash slots */
3626	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4378	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
3662	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4414	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3663	ofs += sizeof (struct inotify_event) + ev->len;	4415	ofs += sizeof (struct inotify_event) + ev->len;
3664	}	4416	}
3665	}	4417	}
3666		4418
3667	inline_size void ecb_cold	4419	inline_size ecb_cold
		4420	void
3668	ev_check_2625 (EV_P)	4421	ev_check_2625 (EV_P)
3669	{	4422	{
3670	/* kernels < 2.6.25 are borked	4423	/* kernels < 2.6.25 are borked
3671	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4424	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3672	*/	4425	*/
…		…
3677	}	4430	}
3678		4431
3679	inline_size int	4432	inline_size int
3680	infy_newfd (void)	4433	infy_newfd (void)
3681	{	4434	{
3682	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4435	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3683	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4436	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3684	if (fd >= 0)	4437	if (fd >= 0)
3685	return fd;	4438	return fd;
3686	#endif	4439	#endif
3687	return inotify_init ();	4440	return inotify_init ();
…		…
3762	#else	4515	#else
3763	# define EV_LSTAT(p,b) lstat (p, b)	4516	# define EV_LSTAT(p,b) lstat (p, b)
3764	#endif	4517	#endif
3765		4518
3766	void	4519	void
3767	ev_stat_stat (EV_P_ ev_stat *w)	4520	ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3768	{	4521	{
3769	if (lstat (w->path, &w->attr) < 0)	4522	if (lstat (w->path, &w->attr) < 0)
3770	w->attr.st_nlink = 0;	4523	w->attr.st_nlink = 0;
3771	else if (!w->attr.st_nlink)	4524	else if (!w->attr.st_nlink)
3772	w->attr.st_nlink = 1;	4525	w->attr.st_nlink = 1;
3773	}	4526	}
3774		4527
3775	static void noinline	4528	noinline
		4529	static void
3776	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4530	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3777	{	4531	{
3778	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4532	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3779		4533
3780	ev_statdata prev = w->attr;	4534	ev_statdata prev = w->attr;
…		…
3811	ev_feed_event (EV_A_ w, EV_STAT);	4565	ev_feed_event (EV_A_ w, EV_STAT);
3812	}	4566	}
3813	}	4567	}
3814		4568
3815	void	4569	void
3816	ev_stat_start (EV_P_ ev_stat *w)	4570	ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3817	{	4571	{
3818	if (expect_false (ev_is_active (w)))	4572	if (expect_false (ev_is_active (w)))
3819	return;	4573	return;
3820		4574
3821	ev_stat_stat (EV_A_ w);	4575	ev_stat_stat (EV_A_ w);
…		…
3842		4596
3843	EV_FREQUENT_CHECK;	4597	EV_FREQUENT_CHECK;
3844	}	4598	}
3845		4599
3846	void	4600	void
3847	ev_stat_stop (EV_P_ ev_stat *w)	4601	ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3848	{	4602	{
3849	clear_pending (EV_A_ (W)w);	4603	clear_pending (EV_A_ (W)w);
3850	if (expect_false (!ev_is_active (w)))	4604	if (expect_false (!ev_is_active (w)))
3851	return;	4605	return;
3852		4606
…		…
3868	}	4622	}
3869	#endif	4623	#endif
3870		4624
3871	#if EV_IDLE_ENABLE	4625	#if EV_IDLE_ENABLE
3872	void	4626	void
3873	ev_idle_start (EV_P_ ev_idle *w)	4627	ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3874	{	4628	{
3875	if (expect_false (ev_is_active (w)))	4629	if (expect_false (ev_is_active (w)))
3876	return;	4630	return;
3877		4631
3878	pri_adjust (EV_A_ (W)w);	4632	pri_adjust (EV_A_ (W)w);
…		…
3883	int active = ++idlecnt [ABSPRI (w)];	4637	int active = ++idlecnt [ABSPRI (w)];
3884		4638
3885	++idleall;	4639	++idleall;
3886	ev_start (EV_A_ (W)w, active);	4640	ev_start (EV_A_ (W)w, active);
3887		4641
3888	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	4642	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
3889	idles [ABSPRI (w)][active - 1] = w;	4643	idles [ABSPRI (w)][active - 1] = w;
3890	}	4644	}
3891		4645
3892	EV_FREQUENT_CHECK;	4646	EV_FREQUENT_CHECK;
3893	}	4647	}
3894		4648
3895	void	4649	void
3896	ev_idle_stop (EV_P_ ev_idle *w)	4650	ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3897	{	4651	{
3898	clear_pending (EV_A_ (W)w);	4652	clear_pending (EV_A_ (W)w);
3899	if (expect_false (!ev_is_active (w)))	4653	if (expect_false (!ev_is_active (w)))
3900	return;	4654	return;
3901		4655
…		…
3915	}	4669	}
3916	#endif	4670	#endif
3917		4671
3918	#if EV_PREPARE_ENABLE	4672	#if EV_PREPARE_ENABLE
3919	void	4673	void
3920	ev_prepare_start (EV_P_ ev_prepare *w)	4674	ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
3921	{	4675	{
3922	if (expect_false (ev_is_active (w)))	4676	if (expect_false (ev_is_active (w)))
3923	return;	4677	return;
3924		4678
3925	EV_FREQUENT_CHECK;	4679	EV_FREQUENT_CHECK;
3926		4680
3927	ev_start (EV_A_ (W)w, ++preparecnt);	4681	ev_start (EV_A_ (W)w, ++preparecnt);
3928	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	4682	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
3929	prepares [preparecnt - 1] = w;	4683	prepares [preparecnt - 1] = w;
3930		4684
3931	EV_FREQUENT_CHECK;	4685	EV_FREQUENT_CHECK;
3932	}	4686	}
3933		4687
3934	void	4688	void
3935	ev_prepare_stop (EV_P_ ev_prepare *w)	4689	ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
3936	{	4690	{
3937	clear_pending (EV_A_ (W)w);	4691	clear_pending (EV_A_ (W)w);
3938	if (expect_false (!ev_is_active (w)))	4692	if (expect_false (!ev_is_active (w)))
3939	return;	4693	return;
3940		4694
…		…
3953	}	4707	}
3954	#endif	4708	#endif
3955		4709
3956	#if EV_CHECK_ENABLE	4710	#if EV_CHECK_ENABLE
3957	void	4711	void
3958	ev_check_start (EV_P_ ev_check *w)	4712	ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
3959	{	4713	{
3960	if (expect_false (ev_is_active (w)))	4714	if (expect_false (ev_is_active (w)))
3961	return;	4715	return;
3962		4716
3963	EV_FREQUENT_CHECK;	4717	EV_FREQUENT_CHECK;
3964		4718
3965	ev_start (EV_A_ (W)w, ++checkcnt);	4719	ev_start (EV_A_ (W)w, ++checkcnt);
3966	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	4720	array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
3967	checks [checkcnt - 1] = w;	4721	checks [checkcnt - 1] = w;
3968		4722
3969	EV_FREQUENT_CHECK;	4723	EV_FREQUENT_CHECK;
3970	}	4724	}
3971		4725
3972	void	4726	void
3973	ev_check_stop (EV_P_ ev_check *w)	4727	ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
3974	{	4728	{
3975	clear_pending (EV_A_ (W)w);	4729	clear_pending (EV_A_ (W)w);
3976	if (expect_false (!ev_is_active (w)))	4730	if (expect_false (!ev_is_active (w)))
3977	return;	4731	return;
3978		4732
…		…
3990	EV_FREQUENT_CHECK;	4744	EV_FREQUENT_CHECK;
3991	}	4745	}
3992	#endif	4746	#endif
3993		4747
3994	#if EV_EMBED_ENABLE	4748	#if EV_EMBED_ENABLE
3995	void noinline	4749	noinline
		4750	void
3996	ev_embed_sweep (EV_P_ ev_embed *w)	4751	ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
3997	{	4752	{
3998	ev_run (w->other, EVRUN_NOWAIT);	4753	ev_run (w->other, EVRUN_NOWAIT);
3999	}	4754	}
4000		4755
4001	static void	4756	static void
…		…
4049	ev_idle_stop (EV_A_ idle);	4804	ev_idle_stop (EV_A_ idle);
4050	}	4805	}
4051	#endif	4806	#endif
4052		4807
4053	void	4808	void
4054	ev_embed_start (EV_P_ ev_embed *w)	4809	ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4055	{	4810	{
4056	if (expect_false (ev_is_active (w)))	4811	if (expect_false (ev_is_active (w)))
4057	return;	4812	return;
4058		4813
4059	{	4814	{
…		…
4080		4835
4081	EV_FREQUENT_CHECK;	4836	EV_FREQUENT_CHECK;
4082	}	4837	}
4083		4838
4084	void	4839	void
4085	ev_embed_stop (EV_P_ ev_embed *w)	4840	ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4086	{	4841	{
4087	clear_pending (EV_A_ (W)w);	4842	clear_pending (EV_A_ (W)w);
4088	if (expect_false (!ev_is_active (w)))	4843	if (expect_false (!ev_is_active (w)))
4089	return;	4844	return;
4090		4845
…		…
4100	}	4855	}
4101	#endif	4856	#endif
4102		4857
4103	#if EV_FORK_ENABLE	4858	#if EV_FORK_ENABLE
4104	void	4859	void
4105	ev_fork_start (EV_P_ ev_fork *w)	4860	ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4106	{	4861	{
4107	if (expect_false (ev_is_active (w)))	4862	if (expect_false (ev_is_active (w)))
4108	return;	4863	return;
4109		4864
4110	EV_FREQUENT_CHECK;	4865	EV_FREQUENT_CHECK;
4111		4866
4112	ev_start (EV_A_ (W)w, ++forkcnt);	4867	ev_start (EV_A_ (W)w, ++forkcnt);
4113	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	4868	array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4114	forks [forkcnt - 1] = w;	4869	forks [forkcnt - 1] = w;
4115		4870
4116	EV_FREQUENT_CHECK;	4871	EV_FREQUENT_CHECK;
4117	}	4872	}
4118		4873
4119	void	4874	void
4120	ev_fork_stop (EV_P_ ev_fork *w)	4875	ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4121	{	4876	{
4122	clear_pending (EV_A_ (W)w);	4877	clear_pending (EV_A_ (W)w);
4123	if (expect_false (!ev_is_active (w)))	4878	if (expect_false (!ev_is_active (w)))
4124	return;	4879	return;
4125		4880
…		…
4138	}	4893	}
4139	#endif	4894	#endif
4140		4895
4141	#if EV_CLEANUP_ENABLE	4896	#if EV_CLEANUP_ENABLE
4142	void	4897	void
4143	ev_cleanup_start (EV_P_ ev_cleanup *w)	4898	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4144	{	4899	{
4145	if (expect_false (ev_is_active (w)))	4900	if (expect_false (ev_is_active (w)))
4146	return;	4901	return;
4147		4902
4148	EV_FREQUENT_CHECK;	4903	EV_FREQUENT_CHECK;
4149		4904
4150	ev_start (EV_A_ (W)w, ++cleanupcnt);	4905	ev_start (EV_A_ (W)w, ++cleanupcnt);
4151	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);	4906	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4152	cleanups [cleanupcnt - 1] = w;	4907	cleanups [cleanupcnt - 1] = w;
4153		4908
4154	/* cleanup watchers should never keep a refcount on the loop */	4909	/* cleanup watchers should never keep a refcount on the loop */
4155	ev_unref (EV_A);	4910	ev_unref (EV_A);
4156	EV_FREQUENT_CHECK;	4911	EV_FREQUENT_CHECK;
4157	}	4912	}
4158		4913
4159	void	4914	void
4160	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4915	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4161	{	4916	{
4162	clear_pending (EV_A_ (W)w);	4917	clear_pending (EV_A_ (W)w);
4163	if (expect_false (!ev_is_active (w)))	4918	if (expect_false (!ev_is_active (w)))
4164	return;	4919	return;
4165		4920
…		…
4179	}	4934	}
4180	#endif	4935	#endif
4181		4936
4182	#if EV_ASYNC_ENABLE	4937	#if EV_ASYNC_ENABLE
4183	void	4938	void
4184	ev_async_start (EV_P_ ev_async *w)	4939	ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4185	{	4940	{
4186	if (expect_false (ev_is_active (w)))	4941	if (expect_false (ev_is_active (w)))
4187	return;	4942	return;
4188		4943
4189	w->sent = 0;	4944	w->sent = 0;
…		…
4191	evpipe_init (EV_A);	4946	evpipe_init (EV_A);
4192		4947
4193	EV_FREQUENT_CHECK;	4948	EV_FREQUENT_CHECK;
4194		4949
4195	ev_start (EV_A_ (W)w, ++asynccnt);	4950	ev_start (EV_A_ (W)w, ++asynccnt);
4196	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	4951	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4197	asyncs [asynccnt - 1] = w;	4952	asyncs [asynccnt - 1] = w;
4198		4953
4199	EV_FREQUENT_CHECK;	4954	EV_FREQUENT_CHECK;
4200	}	4955	}
4201		4956
4202	void	4957	void
4203	ev_async_stop (EV_P_ ev_async *w)	4958	ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4204	{	4959	{
4205	clear_pending (EV_A_ (W)w);	4960	clear_pending (EV_A_ (W)w);
4206	if (expect_false (!ev_is_active (w)))	4961	if (expect_false (!ev_is_active (w)))
4207	return;	4962	return;
4208		4963
…		…
4219		4974
4220	EV_FREQUENT_CHECK;	4975	EV_FREQUENT_CHECK;
4221	}	4976	}
4222		4977
4223	void	4978	void
4224	ev_async_send (EV_P_ ev_async *w)	4979	ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4225	{	4980	{
4226	w->sent = 1;	4981	w->sent = 1;
4227	evpipe_write (EV_A_ &async_pending);	4982	evpipe_write (EV_A_ &async_pending);
4228	}	4983	}
4229	#endif	4984	#endif
…		…
4266		5021
4267	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	5022	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4268	}	5023	}
4269		5024
4270	void	5025	void
4271	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	5026	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4272	{	5027	{
4273	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	5028	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4274
4275	if (expect_false (!once))
4276	{
4277	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4278	return;
4279	}
4280		5029
4281	once->cb = cb;	5030	once->cb = cb;
4282	once->arg = arg;	5031	once->arg = arg;
4283		5032
4284	ev_init (&once->io, once_cb_io);	5033	ev_init (&once->io, once_cb_io);
…		…
4297	}	5046	}
4298		5047
4299	/*****************************************************************************/	5048	/*****************************************************************************/
4300		5049
4301	#if EV_WALK_ENABLE	5050	#if EV_WALK_ENABLE
4302	void ecb_cold	5051	ecb_cold
		5052	void
4303	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	5053	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4304	{	5054	{
4305	int i, j;	5055	int i, j;
4306	ev_watcher_list *wl, *wn;	5056	ev_watcher_list *wl, *wn;
4307		5057
4308	if (types & (EV_IO | EV_EMBED))	5058	if (types & (EV_IO | EV_EMBED))

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