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Comparing libev/ev.c (file contents):
Revision 1.462 by root, Sun Jan 5 02:59:36 2014 UTC vs.
Revision 1.508 by root, Thu Jul 11 08:29:08 2019 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011,2012 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
…		…
113	# define EV_USE_EPOLL EV_FEATURE_BACKENDS	113	# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114	# endif	114	# endif
115	# else	115	# else
116	# undef EV_USE_EPOLL	116	# undef EV_USE_EPOLL
117	# define EV_USE_EPOLL 0	117	# define EV_USE_EPOLL 0
		118	# endif
		119
		120	# if HAVE_LINUX_AIO_ABI_H
		121	# ifndef EV_USE_LINUXAIO
		122	# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
		123	# endif
		124	# else
		125	# undef EV_USE_LINUXAIO
		126	# define EV_USE_LINUXAIO 0
118	# endif	127	# endif
119		128
120	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H	129	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121	# ifndef EV_USE_KQUEUE	130	# ifndef EV_USE_KQUEUE
122	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS	131	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
…		…
162	# define EV_USE_EVENTFD 0	171	# define EV_USE_EVENTFD 0
163	# endif	172	# endif
164		173
165	#endif	174	#endif
166		175
		176	/* OS X, in its infinite idiocy, actually HARDCODES
		177	* a limit of 1024 into their select. Where people have brains,
		178	* OS X engineers apparently have a vacuum. Or maybe they were
		179	* ordered to have a vacuum, or they do anything for money.
		180	* This might help. Or not.
		181	* Note that this must be defined early, as other include files
		182	* will rely on this define as well.
		183	*/
		184	#define _DARWIN_UNLIMITED_SELECT 1
		185
167	#include <stdlib.h>	186	#include <stdlib.h>
168	#include <string.h>	187	#include <string.h>
169	#include <fcntl.h>	188	#include <fcntl.h>
170	#include <stddef.h>	189	#include <stddef.h>
171		190
…		…
208	# ifndef EV_SELECT_IS_WINSOCKET	227	# ifndef EV_SELECT_IS_WINSOCKET
209	# define EV_SELECT_IS_WINSOCKET 1	228	# define EV_SELECT_IS_WINSOCKET 1
210	# endif	229	# endif
211	# undef EV_AVOID_STDIO	230	# undef EV_AVOID_STDIO
212	#endif	231	#endif
213
214	/* OS X, in its infinite idiocy, actually HARDCODES
215	* a limit of 1024 into their select. Where people have brains,
216	* OS X engineers apparently have a vacuum. Or maybe they were
217	* ordered to have a vacuum, or they do anything for money.
218	* This might help. Or not.
219	*/
220	#define _DARWIN_UNLIMITED_SELECT 1
221		232
222	/* this block tries to deduce configuration from header-defined symbols and defaults */	233	/* this block tries to deduce configuration from header-defined symbols and defaults */
223		234
224	/* try to deduce the maximum number of signals on this platform */	235	/* try to deduce the maximum number of signals on this platform */
225	#if defined EV_NSIG	236	#if defined EV_NSIG
…		…
256	# else	267	# else
257	# define EV_USE_CLOCK_SYSCALL 0	268	# define EV_USE_CLOCK_SYSCALL 0
258	# endif	269	# endif
259	#endif	270	#endif
260		271
		272	#if !(_POSIX_TIMERS > 0)
		273	# ifndef EV_USE_MONOTONIC
		274	# define EV_USE_MONOTONIC 0
		275	# endif
		276	# ifndef EV_USE_REALTIME
		277	# define EV_USE_REALTIME 0
		278	# endif
		279	#endif
		280
261	#ifndef EV_USE_MONOTONIC	281	#ifndef EV_USE_MONOTONIC
262	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0	282	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263	# define EV_USE_MONOTONIC EV_FEATURE_OS	283	# define EV_USE_MONOTONIC EV_FEATURE_OS
264	# else	284	# else
265	# define EV_USE_MONOTONIC 0	285	# define EV_USE_MONOTONIC 0
…		…
304		324
305	#ifndef EV_USE_PORT	325	#ifndef EV_USE_PORT
306	# define EV_USE_PORT 0	326	# define EV_USE_PORT 0
307	#endif	327	#endif
308		328
		329	#ifndef EV_USE_LINUXAIO
		330	# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
		331	# define EV_USE_LINUXAIO 1
		332	# else
		333	# define EV_USE_LINUXAIO 0
		334	# endif
		335	#endif
		336
		337	#ifndef EV_USE_IOURING
		338	# if __linux
		339	# define EV_USE_IOURING 0
		340	# else
		341	# define EV_USE_IOURING 0
		342	# endif
		343	#endif
		344
309	#ifndef EV_USE_INOTIFY	345	#ifndef EV_USE_INOTIFY
310	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	346	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
311	# define EV_USE_INOTIFY EV_FEATURE_OS	347	# define EV_USE_INOTIFY EV_FEATURE_OS
312	# else	348	# else
313	# define EV_USE_INOTIFY 0	349	# define EV_USE_INOTIFY 0
…		…
354		390
355	#ifndef EV_HEAP_CACHE_AT	391	#ifndef EV_HEAP_CACHE_AT
356	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	392	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357	#endif	393	#endif
358		394
359	#ifdef ANDROID	395	#ifdef __ANDROID__
360	/* supposedly, android doesn't typedef fd_mask */	396	/* supposedly, android doesn't typedef fd_mask */
361	# undef EV_USE_SELECT	397	# undef EV_USE_SELECT
362	# define EV_USE_SELECT 0	398	# define EV_USE_SELECT 0
363	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */	399	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364	# undef EV_USE_CLOCK_SYSCALL	400	# undef EV_USE_CLOCK_SYSCALL
…		…
378	# include <sys/syscall.h>	414	# include <sys/syscall.h>
379	# ifdef SYS_clock_gettime	415	# ifdef SYS_clock_gettime
380	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	416	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
381	# undef EV_USE_MONOTONIC	417	# undef EV_USE_MONOTONIC
382	# define EV_USE_MONOTONIC 1	418	# define EV_USE_MONOTONIC 1
		419	# define EV_NEED_SYSCALL 1
383	# else	420	# else
384	# undef EV_USE_CLOCK_SYSCALL	421	# undef EV_USE_CLOCK_SYSCALL
385	# define EV_USE_CLOCK_SYSCALL 0	422	# define EV_USE_CLOCK_SYSCALL 0
386	# endif	423	# endif
387	#endif	424	#endif
…		…
405		442
406	#if !EV_USE_NANOSLEEP	443	#if !EV_USE_NANOSLEEP
407	/* hp-ux has it in sys/time.h, which we unconditionally include above */	444	/* hp-ux has it in sys/time.h, which we unconditionally include above */
408	# if !defined _WIN32 && !defined __hpux	445	# if !defined _WIN32 && !defined __hpux
409	# include <sys/select.h>	446	# include <sys/select.h>
		447	# endif
		448	#endif
		449
		450	#if EV_USE_LINUXAIO
		451	# include <sys/syscall.h>
		452	# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
		453	# define EV_NEED_SYSCALL 1
		454	# else
		455	# undef EV_USE_LINUXAIO
		456	# define EV_USE_LINUXAIO 0
		457	# endif
		458	#endif
		459
		460	#if EV_USE_IOURING
		461	# include <sys/syscall.h>
		462	# if !SYS_io_uring_setup && __linux && !__alpha
		463	# define SYS_io_uring_setup 425
		464	# define SYS_io_uring_enter 426
		465	# define SYS_io_uring_wregister 427
		466	# endif
		467	# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
		468	# define EV_NEED_SYSCALL 1
		469	# else
		470	# undef EV_USE_IOURING
		471	# define EV_USE_IOURING 0
410	# endif	472	# endif
411	#endif	473	#endif
412		474
413	#if EV_USE_INOTIFY	475	#if EV_USE_INOTIFY
414	# include <sys/statfs.h>	476	# include <sys/statfs.h>
…		…
456	uint32_t ssi_signo;	518	uint32_t ssi_signo;
457	char pad[128 - sizeof (uint32_t)];	519	char pad[128 - sizeof (uint32_t)];
458	};	520	};
459	#endif	521	#endif
460		522
461	/**/	523	/*****************************************************************************/
462		524
463	#if EV_VERIFY >= 3	525	#if EV_VERIFY >= 3
464	# define EV_FREQUENT_CHECK ev_verify (EV_A)	526	# define EV_FREQUENT_CHECK ev_verify (EV_A)
465	#else	527	#else
466	# define EV_FREQUENT_CHECK do { } while (0)	528	# define EV_FREQUENT_CHECK do { } while (0)
…		…
471	* This value is good at least till the year 4000.	533	* This value is good at least till the year 4000.
472	*/	534	*/
473	#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */	535	#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474	/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */	536	/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
475		537
476	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	538	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
477	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	539	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
478		540
		541	/* find a portable timestamp that is "always" in the future but fits into time_t.
		542	* this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
		543	* and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
		544	#define EV_TSTAMP_HUGE \
		545	(sizeof (time_t) >= 8 ? 10000000000000. \
		546	: 0 < (time_t)4294967295 ? 4294967295. \
		547	: 2147483647.) \
		548
		549	#define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
		550	#define EV_TS_FROM_USEC(us) us * 1e-6
479	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	551	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
480	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	552	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
		553	#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
		554	#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
481		555
482	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	556	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483	/* ECB.H BEGIN */	557	/* ECB.H BEGIN */
484	/*	558	/*
485	* libecb - http://software.schmorp.de/pkg/libecb	559	* libecb - http://software.schmorp.de/pkg/libecb
486	*	560	*
487	* Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de>	561	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488	* Copyright (©) 2011 Emanuele Giaquinta	562	* Copyright (©) 2011 Emanuele Giaquinta
489	* All rights reserved.	563	* All rights reserved.
490	*	564	*
491	* Redistribution and use in source and binary forms, with or without modifica-	565	* Redistribution and use in source and binary forms, with or without modifica-
492	* tion, are permitted provided that the following conditions are met:	566	* tion, are permitted provided that the following conditions are met:
…		…
506	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;	580	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	581	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	582	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED	583	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510	* OF THE POSSIBILITY OF SUCH DAMAGE.	584	* OF THE POSSIBILITY OF SUCH DAMAGE.
		585	*
		586	* Alternatively, the contents of this file may be used under the terms of
		587	* the GNU General Public License ("GPL") version 2 or any later version,
		588	* in which case the provisions of the GPL are applicable instead of
		589	* the above. If you wish to allow the use of your version of this file
		590	* only under the terms of the GPL and not to allow others to use your
		591	* version of this file under the BSD license, indicate your decision
		592	* by deleting the provisions above and replace them with the notice
		593	* and other provisions required by the GPL. If you do not delete the
		594	* provisions above, a recipient may use your version of this file under
		595	* either the BSD or the GPL.
511	*/	596	*/
512		597
513	#ifndef ECB_H	598	#ifndef ECB_H
514	#define ECB_H	599	#define ECB_H
515		600
516	/* 16 bits major, 16 bits minor */	601	/* 16 bits major, 16 bits minor */
517	#define ECB_VERSION 0x00010003	602	#define ECB_VERSION 0x00010006
518		603
519	#ifdef _WIN32	604	#ifdef _WIN32
520	typedef signed char int8_t;	605	typedef signed char int8_t;
521	typedef unsigned char uint8_t;	606	typedef unsigned char uint8_t;
522	typedef signed short int16_t;	607	typedef signed short int16_t;
…		…
539	typedef uint32_t uintptr_t;	624	typedef uint32_t uintptr_t;
540	typedef int32_t intptr_t;	625	typedef int32_t intptr_t;
541	#endif	626	#endif
542	#else	627	#else
543	#include <inttypes.h>	628	#include <inttypes.h>
544	#if UINTMAX_MAX > 0xffffffffU	629	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545	#define ECB_PTRSIZE 8	630	#define ECB_PTRSIZE 8
546	#else	631	#else
547	#define ECB_PTRSIZE 4	632	#define ECB_PTRSIZE 4
548	#endif	633	#endif
549	#endif	634	#endif
550		635
		636	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
		637	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
		638
551	/* work around x32 idiocy by defining proper macros */	639	/* work around x32 idiocy by defining proper macros */
552	#if __amd64 || __x86_64 || _M_AMD64 || _M_X64	640	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553	#if _ILP32	641	#if _ILP32
554	#define ECB_AMD64_X32 1	642	#define ECB_AMD64_X32 1
555	#else	643	#else
556	#define ECB_AMD64 1	644	#define ECB_AMD64 1
557	#endif	645	#endif
…		…
562	* causing enormous grief in return for some better fake benchmark numbers.	650	* causing enormous grief in return for some better fake benchmark numbers.
563	* or so.	651	* or so.
564	* we try to detect these and simply assume they are not gcc - if they have	652	* we try to detect these and simply assume they are not gcc - if they have
565	* an issue with that they should have done it right in the first place.	653	* an issue with that they should have done it right in the first place.
566	*/	654	*/
567	#ifndef ECB_GCC_VERSION
568	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__	655	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569	#define ECB_GCC_VERSION(major,minor) 0	656	#define ECB_GCC_VERSION(major,minor) 0
570	#else	657	#else
571	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	658	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572	#endif	659	#endif
573	#endif
574		660
575	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */	661	#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	662
577	#define ECB_C11 (__STDC_VERSION__ >= 201112L)	663	#if __clang__ && defined __has_builtin
		664	#define ECB_CLANG_BUILTIN(x) __has_builtin (x)
		665	#else
		666	#define ECB_CLANG_BUILTIN(x) 0
		667	#endif
		668
		669	#if __clang__ && defined __has_extension
		670	#define ECB_CLANG_EXTENSION(x) __has_extension (x)
		671	#else
		672	#define ECB_CLANG_EXTENSION(x) 0
		673	#endif
		674
578	#define ECB_CPP (__cplusplus+0)	675	#define ECB_CPP (__cplusplus+0)
579	#define ECB_CPP11 (__cplusplus >= 201103L)	676	#define ECB_CPP11 (__cplusplus >= 201103L)
		677	#define ECB_CPP14 (__cplusplus >= 201402L)
		678	#define ECB_CPP17 (__cplusplus >= 201703L)
		679
		680	#if ECB_CPP
		681	#define ECB_C 0
		682	#define ECB_STDC_VERSION 0
		683	#else
		684	#define ECB_C 1
		685	#define ECB_STDC_VERSION __STDC_VERSION__
		686	#endif
		687
		688	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		689	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		690	#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
580		691
581	#if ECB_CPP	692	#if ECB_CPP
582	#define ECB_EXTERN_C extern "C"	693	#define ECB_EXTERN_C extern "C"
583	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	694	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584	#define ECB_EXTERN_C_END }	695	#define ECB_EXTERN_C_END }
…		…
599		710
600	#if ECB_NO_SMP	711	#if ECB_NO_SMP
601	#define ECB_MEMORY_FENCE do { } while (0)	712	#define ECB_MEMORY_FENCE do { } while (0)
602	#endif	713	#endif
603		714
		715	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
		716	#if __xlC__ && ECB_CPP
		717	#include <builtins.h>
		718	#endif
		719
		720	#if 1400 <= _MSC_VER
		721	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
		722	#endif
		723
604	#ifndef ECB_MEMORY_FENCE	724	#ifndef ECB_MEMORY_FENCE
605	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	725	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		726	#define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
606	#if __i386 || __i386__	727	#if __i386 || __i386__
607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	728	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	729	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	730	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
610	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	731	#elif ECB_GCC_AMD64
611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	732	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	733	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	734	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
614	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	735	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	736	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		737	#elif defined __ARM_ARCH_2__ \
		738	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
		739	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
		740	|| defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
		741	|| defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
		742	|| defined __ARM_ARCH_5TEJ__
		743	/* should not need any, unless running old code on newer cpu - arm doesn't support that */
616	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	744	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	745	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		746	|| defined __ARM_ARCH_6T2__
618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	747	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \	748	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	749	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	750	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		751	#elif __aarch64__
		752	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622	#elif (__sparc || __sparc__) && !__sparcv8	753	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")	754	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	755	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	756	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626	#elif defined __s390__ || defined __s390x__	757	#elif defined __s390__ || defined __s390x__
627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	758	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
…		…
648		779
649	#ifndef ECB_MEMORY_FENCE	780	#ifndef ECB_MEMORY_FENCE
650	#if ECB_GCC_VERSION(4,7)	781	#if ECB_GCC_VERSION(4,7)
651	/* see comment below (stdatomic.h) about the C11 memory model. */	782	/* see comment below (stdatomic.h) about the C11 memory model. */
652	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	783	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		784	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		785	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		786	#define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
653		787
654	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	788	#elif ECB_CLANG_EXTENSION(c_atomic)
655	* without risking compile time errors with other compilers. We *could*
656	* define our own ecb_clang_has_feature, but I just can't be bothered to work
657	* around this shit time and again.
658	* #elif defined __clang && __has_feature (cxx_atomic)
659	* // see comment below (stdatomic.h) about the C11 memory model.	789	/* see comment below (stdatomic.h) about the C11 memory model. */
660	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	790	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661	*/	791	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		792	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
		793	#define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
662		794
663	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	795	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664	#define ECB_MEMORY_FENCE __sync_synchronize ()	796	#define ECB_MEMORY_FENCE __sync_synchronize ()
665	#elif _MSC_VER >= 1500 /* VC++ 2008 */	797	#elif _MSC_VER >= 1500 /* VC++ 2008 */
666	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */	798	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
…		…
676	#elif defined _WIN32	808	#elif defined _WIN32
677	#include <WinNT.h>	809	#include <WinNT.h>
678	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	810	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
679	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	811	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
680	#include <mbarrier.h>	812	#include <mbarrier.h>
681	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	813	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
682	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	814	#define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
683	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()	815	#define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
		816	#define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
684	#elif __xlC__	817	#elif __xlC__
685	#define ECB_MEMORY_FENCE __sync ()	818	#define ECB_MEMORY_FENCE __sync ()
686	#endif	819	#endif
687	#endif	820	#endif
688		821
689	#ifndef ECB_MEMORY_FENCE	822	#ifndef ECB_MEMORY_FENCE
690	#if ECB_C11 && !defined __STDC_NO_ATOMICS__	823	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
691	/* we assume that these memory fences work on all variables/all memory accesses, */	824	/* we assume that these memory fences work on all variables/all memory accesses, */
692	/* not just C11 atomics and atomic accesses */	825	/* not just C11 atomics and atomic accesses */
693	#include <stdatomic.h>	826	#include <stdatomic.h>
694	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
695	/* any fence other than seq_cst, which isn't very efficient for us. */
696	/* Why that is, we don't know - either the C11 memory model is quite useless */
697	/* for most usages, or gcc and clang have a bug */
698	/* I *currently* lean towards the latter, and inefficiently implement */
699	/* all three of ecb's fences as a seq_cst fence */
700	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	827	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		828	#define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
		829	#define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
701	#endif	830	#endif
702	#endif	831	#endif
703		832
704	#ifndef ECB_MEMORY_FENCE	833	#ifndef ECB_MEMORY_FENCE
705	#if !ECB_AVOID_PTHREADS	834	#if !ECB_AVOID_PTHREADS
…		…
725		854
726	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE	855	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
727	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	856	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728	#endif	857	#endif
729		858
		859	#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
		860	#define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
		861	#endif
		862
730	/*****************************************************************************/	863	/*****************************************************************************/
731		864
732	#if __cplusplus	865	#if ECB_CPP
733	#define ecb_inline static inline	866	#define ecb_inline static inline
734	#elif ECB_GCC_VERSION(2,5)	867	#elif ECB_GCC_VERSION(2,5)
735	#define ecb_inline static __inline__	868	#define ecb_inline static __inline__
736	#elif ECB_C99	869	#elif ECB_C99
737	#define ecb_inline static inline	870	#define ecb_inline static inline
…		…
751		884
752	#define ECB_CONCAT_(a, b) a ## b	885	#define ECB_CONCAT_(a, b) a ## b
753	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	886	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754	#define ECB_STRINGIFY_(a) # a	887	#define ECB_STRINGIFY_(a) # a
755	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	888	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		889	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
756		890
757	#define ecb_function_ ecb_inline	891	#define ecb_function_ ecb_inline
758		892
759	#if ECB_GCC_VERSION(3,1)	893	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760	#define ecb_attribute(attrlist) __attribute__(attrlist)	894	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		895	#else
		896	#define ecb_attribute(attrlist)
		897	#endif
		898
		899	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
761	#define ecb_is_constant(expr) __builtin_constant_p (expr)	900	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		901	#else
		902	/* possible C11 impl for integral types
		903	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		904	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		905
		906	#define ecb_is_constant(expr) 0
		907	#endif
		908
		909	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
762	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	910	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		911	#else
		912	#define ecb_expect(expr,value) (expr)
		913	#endif
		914
		915	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
763	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	916	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764	#else	917	#else
765	#define ecb_attribute(attrlist)
766	#define ecb_is_constant(expr) 0
767	#define ecb_expect(expr,value) (expr)
768	#define ecb_prefetch(addr,rw,locality)	918	#define ecb_prefetch(addr,rw,locality)
769	#endif	919	#endif
770		920
771	/* no emulation for ecb_decltype */	921	/* no emulation for ecb_decltype */
772	#if ECB_GCC_VERSION(4,5)	922	#if ECB_CPP11
		923	// older implementations might have problems with decltype(x)::type, work around it
		924	template<class T> struct ecb_decltype_t { typedef T type; };
773	#define ecb_decltype(x) __decltype(x)	925	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774	#elif ECB_GCC_VERSION(3,0)	926	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775	#define ecb_decltype(x) __typeof(x)	927	#define ecb_decltype(x) __typeof__ (x)
776	#endif	928	#endif
777		929
		930	#if _MSC_VER >= 1300
		931	#define ecb_deprecated __declspec (deprecated)
		932	#else
		933	#define ecb_deprecated ecb_attribute ((__deprecated__))
		934	#endif
		935
		936	#if _MSC_VER >= 1500
		937	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		938	#elif ECB_GCC_VERSION(4,5)
		939	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		940	#else
		941	#define ecb_deprecated_message(msg) ecb_deprecated
		942	#endif
		943
		944	#if _MSC_VER >= 1400
		945	#define ecb_noinline __declspec (noinline)
		946	#else
778	#define ecb_noinline ecb_attribute ((__noinline__))	947	#define ecb_noinline ecb_attribute ((__noinline__))
		948	#endif
		949
779	#define ecb_unused ecb_attribute ((__unused__))	950	#define ecb_unused ecb_attribute ((__unused__))
780	#define ecb_const ecb_attribute ((__const__))	951	#define ecb_const ecb_attribute ((__const__))
781	#define ecb_pure ecb_attribute ((__pure__))	952	#define ecb_pure ecb_attribute ((__pure__))
782		953
783	#if ECB_C11	954	#if ECB_C11 || __IBMC_NORETURN
		955	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
784	#define ecb_noreturn _Noreturn	956	#define ecb_noreturn _Noreturn
		957	#elif ECB_CPP11
		958	#define ecb_noreturn [[noreturn]]
		959	#elif _MSC_VER >= 1200
		960	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		961	#define ecb_noreturn __declspec (noreturn)
785	#else	962	#else
786	#define ecb_noreturn ecb_attribute ((__noreturn__))	963	#define ecb_noreturn ecb_attribute ((__noreturn__))
787	#endif	964	#endif
788		965
789	#if ECB_GCC_VERSION(4,3)	966	#if ECB_GCC_VERSION(4,3)
…		…
804	/* for compatibility to the rest of the world */	981	/* for compatibility to the rest of the world */
805	#define ecb_likely(expr) ecb_expect_true (expr)	982	#define ecb_likely(expr) ecb_expect_true (expr)
806	#define ecb_unlikely(expr) ecb_expect_false (expr)	983	#define ecb_unlikely(expr) ecb_expect_false (expr)
807		984
808	/* count trailing zero bits and count # of one bits */	985	/* count trailing zero bits and count # of one bits */
809	#if ECB_GCC_VERSION(3,4)	986	#if ECB_GCC_VERSION(3,4) \
		987	|| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		988	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		989	&& ECB_CLANG_BUILTIN(__builtin_popcount))
810	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	990	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
811	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	991	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	992	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813	#define ecb_ctz32(x) __builtin_ctz (x)	993	#define ecb_ctz32(x) __builtin_ctz (x)
814	#define ecb_ctz64(x) __builtin_ctzll (x)	994	#define ecb_ctz64(x) __builtin_ctzll (x)
815	#define ecb_popcount32(x) __builtin_popcount (x)	995	#define ecb_popcount32(x) __builtin_popcount (x)
816	/* no popcountll */	996	/* no popcountll */
817	#else	997	#else
818	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	998	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819	ecb_function_ int	999	ecb_function_ ecb_const int
820	ecb_ctz32 (uint32_t x)	1000	ecb_ctz32 (uint32_t x)
821	{	1001	{
		1002	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		1003	unsigned long r;
		1004	_BitScanForward (&r, x);
		1005	return (int)r;
		1006	#else
822	int r = 0;	1007	int r = 0;
823		1008
824	x &= ~x + 1; /* this isolates the lowest bit */	1009	x &= ~x + 1; /* this isolates the lowest bit */
825		1010
826	#if ECB_branchless_on_i386	1011	#if ECB_branchless_on_i386
…		…
836	if (x & 0xff00ff00) r += 8;	1021	if (x & 0xff00ff00) r += 8;
837	if (x & 0xffff0000) r += 16;	1022	if (x & 0xffff0000) r += 16;
838	#endif	1023	#endif
839		1024
840	return r;	1025	return r;
		1026	#endif
841	}	1027	}
842		1028
843	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	1029	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844	ecb_function_ int	1030	ecb_function_ ecb_const int
845	ecb_ctz64 (uint64_t x)	1031	ecb_ctz64 (uint64_t x)
846	{	1032	{
		1033	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		1034	unsigned long r;
		1035	_BitScanForward64 (&r, x);
		1036	return (int)r;
		1037	#else
847	int shift = x & 0xffffffffU ? 0 : 32;	1038	int shift = x & 0xffffffff ? 0 : 32;
848	return ecb_ctz32 (x >> shift) + shift;	1039	return ecb_ctz32 (x >> shift) + shift;
		1040	#endif
849	}	1041	}
850		1042
851	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	1043	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852	ecb_function_ int	1044	ecb_function_ ecb_const int
853	ecb_popcount32 (uint32_t x)	1045	ecb_popcount32 (uint32_t x)
854	{	1046	{
855	x -= (x >> 1) & 0x55555555;	1047	x -= (x >> 1) & 0x55555555;
856	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	1048	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857	x = ((x >> 4) + x) & 0x0f0f0f0f;	1049	x = ((x >> 4) + x) & 0x0f0f0f0f;
858	x *= 0x01010101;	1050	x *= 0x01010101;
859		1051
860	return x >> 24;	1052	return x >> 24;
861	}	1053	}
862		1054
863	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	1055	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864	ecb_function_ int ecb_ld32 (uint32_t x)	1056	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865	{	1057	{
		1058	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		1059	unsigned long r;
		1060	_BitScanReverse (&r, x);
		1061	return (int)r;
		1062	#else
866	int r = 0;	1063	int r = 0;
867		1064
868	if (x >> 16) { x >>= 16; r += 16; }	1065	if (x >> 16) { x >>= 16; r += 16; }
869	if (x >> 8) { x >>= 8; r += 8; }	1066	if (x >> 8) { x >>= 8; r += 8; }
870	if (x >> 4) { x >>= 4; r += 4; }	1067	if (x >> 4) { x >>= 4; r += 4; }
871	if (x >> 2) { x >>= 2; r += 2; }	1068	if (x >> 2) { x >>= 2; r += 2; }
872	if (x >> 1) { r += 1; }	1069	if (x >> 1) { r += 1; }
873		1070
874	return r;	1071	return r;
		1072	#endif
875	}	1073	}
876		1074
877	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1075	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878	ecb_function_ int ecb_ld64 (uint64_t x)	1076	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879	{	1077	{
		1078	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		1079	unsigned long r;
		1080	_BitScanReverse64 (&r, x);
		1081	return (int)r;
		1082	#else
880	int r = 0;	1083	int r = 0;
881		1084
882	if (x >> 32) { x >>= 32; r += 32; }	1085	if (x >> 32) { x >>= 32; r += 32; }
883		1086
884	return r + ecb_ld32 (x);	1087	return r + ecb_ld32 (x);
		1088	#endif
885	}	1089	}
886	#endif	1090	#endif
887		1091
888	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	1092	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
889	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }	1093	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
890	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;	1094	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
891	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }	1095	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892		1096
893	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	1097	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	1098	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895	{	1099	{
896	return ( (x * 0x0802U & 0x22110U)	1100	return ( (x * 0x0802U & 0x22110U)
897	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	1101	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898	}	1102	}
899		1103
900	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	1104	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	1105	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902	{	1106	{
903	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);	1107	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);	1108	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);	1109	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906	x = ( x >> 8 ) | ( x << 8);	1110	x = ( x >> 8 ) | ( x << 8);
907		1111
908	return x;	1112	return x;
909	}	1113	}
910		1114
911	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1115	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1116	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913	{	1117	{
914	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);	1118	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);	1119	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);	1120	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);	1121	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
…		…
920	return x;	1124	return x;
921	}	1125	}
922		1126
923	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1127	/* popcount64 is only available on 64 bit cpus as gcc builtin */
924	/* so for this version we are lazy */	1128	/* so for this version we are lazy */
925	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1129	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926	ecb_function_ int	1130	ecb_function_ ecb_const int
927	ecb_popcount64 (uint64_t x)	1131	ecb_popcount64 (uint64_t x)
928	{	1132	{
929	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1133	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930	}	1134	}
931		1135
932	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1136	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
933	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1137	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
934	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1138	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
935	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1139	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
936	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1140	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
937	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1141	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
938	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1142	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
939	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1143	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
940		1144
941	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }	1145	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
942	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }	1146	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
943	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }	1147	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
944	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }	1148	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
945	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }	1149	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
946	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }	1150	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
947	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }	1151	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
948	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }	1152	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
949		1153
950	#if ECB_GCC_VERSION(4,3)	1154	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
		1155	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
		1156	#define ecb_bswap16(x) __builtin_bswap16 (x)
		1157	#else
951	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1158	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1159	#endif
952	#define ecb_bswap32(x) __builtin_bswap32 (x)	1160	#define ecb_bswap32(x) __builtin_bswap32 (x)
953	#define ecb_bswap64(x) __builtin_bswap64 (x)	1161	#define ecb_bswap64(x) __builtin_bswap64 (x)
		1162	#elif _MSC_VER
		1163	#include <stdlib.h>
		1164	#define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
		1165	#define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
		1166	#define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
954	#else	1167	#else
955	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1168	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956	ecb_function_ uint16_t	1169	ecb_function_ ecb_const uint16_t
957	ecb_bswap16 (uint16_t x)	1170	ecb_bswap16 (uint16_t x)
958	{	1171	{
959	return ecb_rotl16 (x, 8);	1172	return ecb_rotl16 (x, 8);
960	}	1173	}
961		1174
962	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1175	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963	ecb_function_ uint32_t	1176	ecb_function_ ecb_const uint32_t
964	ecb_bswap32 (uint32_t x)	1177	ecb_bswap32 (uint32_t x)
965	{	1178	{
966	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1179	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967	}	1180	}
968		1181
969	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1182	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970	ecb_function_ uint64_t	1183	ecb_function_ ecb_const uint64_t
971	ecb_bswap64 (uint64_t x)	1184	ecb_bswap64 (uint64_t x)
972	{	1185	{
973	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1186	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974	}	1187	}
975	#endif	1188	#endif
976		1189
977	#if ECB_GCC_VERSION(4,5)	1190	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978	#define ecb_unreachable() __builtin_unreachable ()	1191	#define ecb_unreachable() __builtin_unreachable ()
979	#else	1192	#else
980	/* this seems to work fine, but gcc always emits a warning for it :/ */	1193	/* this seems to work fine, but gcc always emits a warning for it :/ */
981	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1194	ecb_inline ecb_noreturn void ecb_unreachable (void);
982	ecb_inline void ecb_unreachable (void) { }	1195	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983	#endif	1196	#endif
984		1197
985	/* try to tell the compiler that some condition is definitely true */	1198	/* try to tell the compiler that some condition is definitely true */
986	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1199	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987		1200
988	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1201	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989	ecb_inline unsigned char	1202	ecb_inline ecb_const uint32_t
990	ecb_byteorder_helper (void)	1203	ecb_byteorder_helper (void)
991	{	1204	{
992	/* the union code still generates code under pressure in gcc, */	1205	/* the union code still generates code under pressure in gcc, */
993	/* but less than using pointers, and always seems to */	1206	/* but less than using pointers, and always seems to */
994	/* successfully return a constant. */	1207	/* successfully return a constant. */
995	/* the reason why we have this horrible preprocessor mess */	1208	/* the reason why we have this horrible preprocessor mess */
996	/* is to avoid it in all cases, at least on common architectures */	1209	/* is to avoid it in all cases, at least on common architectures */
997	/* or when using a recent enough gcc version (>= 4.6) */	1210	/* or when using a recent enough gcc version (>= 4.6) */
998	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999	return 0x44;
1000	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__	1211	#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
		1212	|| ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
		1213	#define ECB_LITTLE_ENDIAN 1
1001	return 0x44;	1214	return 0x44332211;
1002	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__	1215	#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
		1216	|| ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
		1217	#define ECB_BIG_ENDIAN 1
1003	return 0x11;	1218	return 0x11223344;
1004	#else	1219	#else
1005	union	1220	union
1006	{	1221	{
		1222	uint8_t c[4];
1007	uint32_t i;	1223	uint32_t u;
1008	uint8_t c;
1009	} u = { 0x11223344 };	1224	} u = { 0x11, 0x22, 0x33, 0x44 };
1010	return u.c;	1225	return u.u;
1011	#endif	1226	#endif
1012	}	1227	}
1013		1228
1014	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1229	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1230	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1016	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1231	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1232	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1018		1233
1019	#if ECB_GCC_VERSION(3,0) || ECB_C99	1234	#if ECB_GCC_VERSION(3,0) || ECB_C99
1020	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1235	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1021	#else	1236	#else
1022	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1237	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1023	#endif	1238	#endif
1024		1239
1025	#if __cplusplus	1240	#if ECB_CPP
1026	template<typename T>	1241	template<typename T>
1027	static inline T ecb_div_rd (T val, T div)	1242	static inline T ecb_div_rd (T val, T div)
1028	{	1243	{
1029	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1244	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030	}	1245	}
…		…
1047	}	1262	}
1048	#else	1263	#else
1049	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1264	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050	#endif	1265	#endif
1051		1266
		1267	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
		1268	ecb_function_ ecb_const uint32_t
		1269	ecb_binary16_to_binary32 (uint32_t x)
		1270	{
		1271	unsigned int s = (x & 0x8000) << (31 - 15);
		1272	int e = (x >> 10) & 0x001f;
		1273	unsigned int m = x & 0x03ff;
		1274
		1275	if (ecb_expect_false (e == 31))
		1276	/* infinity or NaN */
		1277	e = 255 - (127 - 15);
		1278	else if (ecb_expect_false (!e))
		1279	{
		1280	if (ecb_expect_true (!m))
		1281	/* zero, handled by code below by forcing e to 0 */
		1282	e = 0 - (127 - 15);
		1283	else
		1284	{
		1285	/* subnormal, renormalise */
		1286	unsigned int s = 10 - ecb_ld32 (m);
		1287
		1288	m = (m << s) & 0x3ff; /* mask implicit bit */
		1289	e -= s - 1;
		1290	}
		1291	}
		1292
		1293	/* e and m now are normalised, or zero, (or inf or nan) */
		1294	e += 127 - 15;
		1295
		1296	return s | (e << 23) | (m << (23 - 10));
		1297	}
		1298
		1299	ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
		1300	ecb_function_ ecb_const uint16_t
		1301	ecb_binary32_to_binary16 (uint32_t x)
		1302	{
		1303	unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
		1304	unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
		1305	unsigned int m = x & 0x007fffff;
		1306
		1307	x &= 0x7fffffff;
		1308
		1309	/* if it's within range of binary16 normals, use fast path */
		1310	if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
		1311	{
		1312	/* mantissa round-to-even */
		1313	m += 0x00000fff + ((m >> (23 - 10)) & 1);
		1314
		1315	/* handle overflow */
		1316	if (ecb_expect_false (m >= 0x00800000))
		1317	{
		1318	m >>= 1;
		1319	e += 1;
		1320	}
		1321
		1322	return s | (e << 10) | (m >> (23 - 10));
		1323	}
		1324
		1325	/* handle large numbers and infinity */
		1326	if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
		1327	return s | 0x7c00;
		1328
		1329	/* handle zero, subnormals and small numbers */
		1330	if (ecb_expect_true (x < 0x38800000))
		1331	{
		1332	/* zero */
		1333	if (ecb_expect_true (!x))
		1334	return s;
		1335
		1336	/* handle subnormals */
		1337
		1338	/* too small, will be zero */
		1339	if (e < (14 - 24)) /* might not be sharp, but is good enough */
		1340	return s;
		1341
		1342	m |= 0x00800000; /* make implicit bit explicit */
		1343
		1344	/* very tricky - we need to round to the nearest e (+10) bit value */
		1345	{
		1346	unsigned int bits = 14 - e;
		1347	unsigned int half = (1 << (bits - 1)) - 1;
		1348	unsigned int even = (m >> bits) & 1;
		1349
		1350	/* if this overflows, we will end up with a normalised number */
		1351	m = (m + half + even) >> bits;
		1352	}
		1353
		1354	return s | m;
		1355	}
		1356
		1357	/* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
		1358	m >>= 13;
		1359
		1360	return s | 0x7c00 | m | !m;
		1361	}
		1362
1052	/*******************************************************************************/	1363	/*******************************************************************************/
1053	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */	1364	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054		1365
1055	/* basically, everything uses "ieee pure-endian" floating point numbers */	1366	/* basically, everything uses "ieee pure-endian" floating point numbers */
1056	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1367	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057	#if 0 \	1368	#if 0 \
1058	|| __i386 || __i386__ \	1369	|| __i386 || __i386__ \
1059	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \	1370	|| ECB_GCC_AMD64 \
1060	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \	1371	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061	|| defined __arm__ && defined __ARM_EABI__ \
1062	|| defined __s390__ || defined __s390x__ \	1372	|| defined __s390__ || defined __s390x__ \
1063	|| defined __mips__ \	1373	|| defined __mips__ \
1064	|| defined __alpha__ \	1374	|| defined __alpha__ \
1065	|| defined __hppa__ \	1375	|| defined __hppa__ \
1066	|| defined __ia64__ \	1376	|| defined __ia64__ \
1067	|| defined __m68k__ \	1377	|| defined __m68k__ \
1068	|| defined __m88k__ \	1378	|| defined __m88k__ \
1069	|| defined __sh__ \	1379	|| defined __sh__ \
1070	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64	1380	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
		1381	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1382	|| defined __aarch64__
1071	#define ECB_STDFP 1	1383	#define ECB_STDFP 1
1072	#include <string.h> /* for memcpy */	1384	#include <string.h> /* for memcpy */
1073	#else	1385	#else
1074	#define ECB_STDFP 0	1386	#define ECB_STDFP 0
1075	#endif	1387	#endif
…		…
1089	#define ECB_NAN NAN	1401	#define ECB_NAN NAN
1090	#else	1402	#else
1091	#define ECB_NAN ECB_INFINITY	1403	#define ECB_NAN ECB_INFINITY
1092	#endif	1404	#endif
1093		1405
1094	/* converts an ieee half/binary16 to a float */	1406	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;	1407	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096	ecb_function_ float	1408	#define ecb_frexpf(x,e) frexpf ((x), (e))
1097	ecb_binary16_to_float (uint16_t x)	1409	#else
1098	{	1410	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099	int e = (x >> 10) & 0x1f;	1411	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100	int m = x & 0x3ff;	1412	#endif
1101	float r;
1102
1103	if (!e ) r = ldexpf (m , -24);
1104	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105	else if (m ) r = ECB_NAN;
1106	else r = ECB_INFINITY;
1107
1108	return x & 0x8000 ? -r : r;
1109	}
1110		1413
1111	/* convert a float to ieee single/binary32 */	1414	/* convert a float to ieee single/binary32 */
1112	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;	1415	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1113	ecb_function_ uint32_t	1416	ecb_function_ ecb_const uint32_t
1114	ecb_float_to_binary32 (float x)	1417	ecb_float_to_binary32 (float x)
1115	{	1418	{
1116	uint32_t r;	1419	uint32_t r;
1117		1420
1118	#if ECB_STDFP	1421	#if ECB_STDFP
…		…
1125	if (x == 0e0f ) return 0x00000000U;	1428	if (x == 0e0f ) return 0x00000000U;
1126	if (x > +3.40282346638528860e+38f) return 0x7f800000U;	1429	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127	if (x < -3.40282346638528860e+38f) return 0xff800000U;	1430	if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128	if (x != x ) return 0x7fbfffffU;	1431	if (x != x ) return 0x7fbfffffU;
1129		1432
1130	m = frexpf (x, &e) * 0x1000000U;	1433	m = ecb_frexpf (x, &e) * 0x1000000U;
1131		1434
1132	r = m & 0x80000000U;	1435	r = m & 0x80000000U;
1133		1436
1134	if (r)	1437	if (r)
1135	m = -m;	1438	m = -m;
…		…
1147		1450
1148	return r;	1451	return r;
1149	}	1452	}
1150		1453
1151	/* converts an ieee single/binary32 to a float */	1454	/* converts an ieee single/binary32 to a float */
1152	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;	1455	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1153	ecb_function_ float	1456	ecb_function_ ecb_const float
1154	ecb_binary32_to_float (uint32_t x)	1457	ecb_binary32_to_float (uint32_t x)
1155	{	1458	{
1156	float r;	1459	float r;
1157		1460
1158	#if ECB_STDFP	1461	#if ECB_STDFP
…		…
1168	x |= 0x800000U;	1471	x |= 0x800000U;
1169	else	1472	else
1170	e = 1;	1473	e = 1;
1171		1474
1172	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */	1475	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1173	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1476	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174		1477
1175	r = neg ? -r : r;	1478	r = neg ? -r : r;
1176	#endif	1479	#endif
1177		1480
1178	return r;	1481	return r;
1179	}	1482	}
1180		1483
1181	/* convert a double to ieee double/binary64 */	1484	/* convert a double to ieee double/binary64 */
1182	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;	1485	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1183	ecb_function_ uint64_t	1486	ecb_function_ ecb_const uint64_t
1184	ecb_double_to_binary64 (double x)	1487	ecb_double_to_binary64 (double x)
1185	{	1488	{
1186	uint64_t r;	1489	uint64_t r;
1187		1490
1188	#if ECB_STDFP	1491	#if ECB_STDFP
…		…
1217		1520
1218	return r;	1521	return r;
1219	}	1522	}
1220		1523
1221	/* converts an ieee double/binary64 to a double */	1524	/* converts an ieee double/binary64 to a double */
1222	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;	1525	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1223	ecb_function_ double	1526	ecb_function_ ecb_const double
1224	ecb_binary64_to_double (uint64_t x)	1527	ecb_binary64_to_double (uint64_t x)
1225	{	1528	{
1226	double r;	1529	double r;
1227		1530
1228	#if ECB_STDFP	1531	#if ECB_STDFP
…		…
1246	#endif	1549	#endif
1247		1550
1248	return r;	1551	return r;
1249	}	1552	}
1250		1553
		1554	/* convert a float to ieee half/binary16 */
		1555	ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
		1556	ecb_function_ ecb_const uint16_t
		1557	ecb_float_to_binary16 (float x)
		1558	{
		1559	return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
		1560	}
		1561
		1562	/* convert an ieee half/binary16 to float */
		1563	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
		1564	ecb_function_ ecb_const float
		1565	ecb_binary16_to_float (uint16_t x)
		1566	{
		1567	return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
		1568	}
		1569
1251	#endif	1570	#endif
1252		1571
1253	#endif	1572	#endif
1254		1573
1255	/* ECB.H END */	1574	/* ECB.H END */
1256		1575
1257	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1576	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1258	/* if your architecture doesn't need memory fences, e.g. because it is	1577	/* if your architecture doesn't need memory fences, e.g. because it is
1259	* single-cpu/core, or if you use libev in a project that doesn't use libev	1578	* single-cpu/core, or if you use libev in a project that doesn't use libev
1260	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling	1579	* from multiple threads, then you can define ECB_NO_THREADS when compiling
1261	* libev, in which cases the memory fences become nops.	1580	* libev, in which cases the memory fences become nops.
1262	* alternatively, you can remove this #error and link against libpthread,	1581	* alternatively, you can remove this #error and link against libpthread,
1263	* which will then provide the memory fences.	1582	* which will then provide the memory fences.
1264	*/	1583	*/
1265	# error "memory fences not defined for your architecture, please report"	1584	# error "memory fences not defined for your architecture, please report"
…		…
1269	# define ECB_MEMORY_FENCE do { } while (0)	1588	# define ECB_MEMORY_FENCE do { } while (0)
1270	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	1589	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1271	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	1590	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1272	#endif	1591	#endif
1273		1592
1274	#define expect_false(cond) ecb_expect_false (cond)
1275	#define expect_true(cond) ecb_expect_true (cond)
1276	#define noinline ecb_noinline
1277
1278	#define inline_size ecb_inline	1593	#define inline_size ecb_inline
1279		1594
1280	#if EV_FEATURE_CODE	1595	#if EV_FEATURE_CODE
1281	# define inline_speed ecb_inline	1596	# define inline_speed ecb_inline
1282	#else	1597	#else
1283	# define inline_speed static noinline	1598	# define inline_speed ecb_noinline static
1284	#endif	1599	#endif
		1600
		1601	/*****************************************************************************/
		1602	/* raw syscall wrappers */
		1603
		1604	#if EV_NEED_SYSCALL
		1605
		1606	#include <sys/syscall.h>
		1607
		1608	/*
		1609	* define some syscall wrappers for common architectures
		1610	* this is mostly for nice looks during debugging, not performance.
		1611	* our syscalls return < 0, not == -1, on error. which is good
		1612	* enough for linux aio.
		1613	* TODO: arm is also common nowadays, maybe even mips and x86
		1614	* TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
		1615	*/
		1616	#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
		1617	/* the costly errno access probably kills this for size optimisation */
		1618
		1619	#define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
		1620	({ \
		1621	long res; \
		1622	register unsigned long r6 __asm__ ("r9" ); \
		1623	register unsigned long r5 __asm__ ("r8" ); \
		1624	register unsigned long r4 __asm__ ("r10"); \
		1625	register unsigned long r3 __asm__ ("rdx"); \
		1626	register unsigned long r2 __asm__ ("rsi"); \
		1627	register unsigned long r1 __asm__ ("rdi"); \
		1628	if (narg >= 6) r6 = (unsigned long)(arg6); \
		1629	if (narg >= 5) r5 = (unsigned long)(arg5); \
		1630	if (narg >= 4) r4 = (unsigned long)(arg4); \
		1631	if (narg >= 3) r3 = (unsigned long)(arg3); \
		1632	if (narg >= 2) r2 = (unsigned long)(arg2); \
		1633	if (narg >= 1) r1 = (unsigned long)(arg1); \
		1634	__asm__ __volatile__ ( \
		1635	"syscall\n\t" \
		1636	: "=a" (res) \
		1637	: "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
		1638	: "cc", "r11", "cx", "memory"); \
		1639	errno = -res; \
		1640	res; \
		1641	})
		1642
		1643	#endif
		1644
		1645	#ifdef ev_syscall
		1646	#define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
		1647	#define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
		1648	#define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
		1649	#define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
		1650	#define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
		1651	#define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
		1652	#define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
		1653	#else
		1654	#define ev_syscall0(nr) syscall (nr)
		1655	#define ev_syscall1(nr,arg1) syscall (nr, arg1)
		1656	#define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
		1657	#define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
		1658	#define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
		1659	#define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
		1660	#define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
		1661	#endif
		1662
		1663	#endif
		1664
		1665	/*****************************************************************************/
1285		1666
1286	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1667	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287		1668
1288	#if EV_MINPRI == EV_MAXPRI	1669	#if EV_MINPRI == EV_MAXPRI
1289	# define ABSPRI(w) (((W)w), 0)	1670	# define ABSPRI(w) (((W)w), 0)
1290	#else	1671	#else
1291	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	1672	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1292	#endif	1673	#endif
1293		1674
1294	#define EMPTY /* required for microsofts broken pseudo-c compiler */	1675	#define EMPTY /* required for microsofts broken pseudo-c compiler */
1295	#define EMPTY2(a,b) /* used to suppress some warnings */
1296		1676
1297	typedef ev_watcher *W;	1677	typedef ev_watcher *W;
1298	typedef ev_watcher_list *WL;	1678	typedef ev_watcher_list *WL;
1299	typedef ev_watcher_time *WT;	1679	typedef ev_watcher_time *WT;
1300		1680
…		…
1325	# include "ev_win32.c"	1705	# include "ev_win32.c"
1326	#endif	1706	#endif
1327		1707
1328	/*****************************************************************************/	1708	/*****************************************************************************/
1329		1709
		1710	#if EV_USE_LINUXAIO
		1711	# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
		1712	#endif
		1713
1330	/* define a suitable floor function (only used by periodics atm) */	1714	/* define a suitable floor function (only used by periodics atm) */
1331		1715
1332	#if EV_USE_FLOOR	1716	#if EV_USE_FLOOR
1333	# include <math.h>	1717	# include <math.h>
1334	# define ev_floor(v) floor (v)	1718	# define ev_floor(v) floor (v)
1335	#else	1719	#else
1336		1720
1337	#include <float.h>	1721	#include <float.h>
1338		1722
1339	/* a floor() replacement function, should be independent of ev_tstamp type */	1723	/* a floor() replacement function, should be independent of ev_tstamp type */
		1724	ecb_noinline
1340	static ev_tstamp noinline	1725	static ev_tstamp
1341	ev_floor (ev_tstamp v)	1726	ev_floor (ev_tstamp v)
1342	{	1727	{
1343	/* the choice of shift factor is not terribly important */	1728	/* the choice of shift factor is not terribly important */
1344	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1729	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1730	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1346	#else	1731	#else
1347	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;	1732	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1348	#endif	1733	#endif
1349		1734
		1735	/* special treatment for negative arguments */
		1736	if (ecb_expect_false (v < 0.))
		1737	{
		1738	ev_tstamp f = -ev_floor (-v);
		1739
		1740	return f - (f == v ? 0 : 1);
		1741	}
		1742
1350	/* argument too large for an unsigned long? */	1743	/* argument too large for an unsigned long? then reduce it */
1351	if (expect_false (v >= shift))	1744	if (ecb_expect_false (v >= shift))
1352	{	1745	{
1353	ev_tstamp f;	1746	ev_tstamp f;
1354		1747
1355	if (v == v - 1.)	1748	if (v == v - 1.)
1356	return v; /* very large number */	1749	return v; /* very large numbers are assumed to be integer */
1357		1750
1358	f = shift * ev_floor (v * (1. / shift));	1751	f = shift * ev_floor (v * (1. / shift));
1359	return f + ev_floor (v - f);	1752	return f + ev_floor (v - f);
1360	}	1753	}
1361		1754
1362	/* special treatment for negative args? */
1363	if (expect_false (v < 0.))
1364	{
1365	ev_tstamp f = -ev_floor (-v);
1366
1367	return f - (f == v ? 0 : 1);
1368	}
1369
1370	/* fits into an unsigned long */	1755	/* fits into an unsigned long */
1371	return (unsigned long)v;	1756	return (unsigned long)v;
1372	}	1757	}
1373		1758
1374	#endif	1759	#endif
…		…
1377		1762
1378	#ifdef __linux	1763	#ifdef __linux
1379	# include <sys/utsname.h>	1764	# include <sys/utsname.h>
1380	#endif	1765	#endif
1381		1766
1382	static unsigned int noinline ecb_cold	1767	ecb_noinline ecb_cold
		1768	static unsigned int
1383	ev_linux_version (void)	1769	ev_linux_version (void)
1384	{	1770	{
1385	#ifdef __linux	1771	#ifdef __linux
1386	unsigned int v = 0;	1772	unsigned int v = 0;
1387	struct utsname buf;	1773	struct utsname buf;
…		…
1416	}	1802	}
1417		1803
1418	/*****************************************************************************/	1804	/*****************************************************************************/
1419		1805
1420	#if EV_AVOID_STDIO	1806	#if EV_AVOID_STDIO
1421	static void noinline ecb_cold	1807	ecb_noinline ecb_cold
		1808	static void
1422	ev_printerr (const char *msg)	1809	ev_printerr (const char *msg)
1423	{	1810	{
1424	write (STDERR_FILENO, msg, strlen (msg));	1811	write (STDERR_FILENO, msg, strlen (msg));
1425	}	1812	}
1426	#endif	1813	#endif
1427		1814
1428	static void (*syserr_cb)(const char *msg) EV_THROW;	1815	static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1429		1816
1430	void ecb_cold	1817	ecb_cold
		1818	void
1431	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW	1819	ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1432	{	1820	{
1433	syserr_cb = cb;	1821	syserr_cb = cb;
1434	}	1822	}
1435		1823
1436	static void noinline ecb_cold	1824	ecb_noinline ecb_cold
		1825	static void
1437	ev_syserr (const char *msg)	1826	ev_syserr (const char *msg)
1438	{	1827	{
1439	if (!msg)	1828	if (!msg)
1440	msg = "(libev) system error";	1829	msg = "(libev) system error";
1441		1830
…		…
1454	abort ();	1843	abort ();
1455	}	1844	}
1456	}	1845	}
1457		1846
1458	static void *	1847	static void *
1459	ev_realloc_emul (void *ptr, long size) EV_THROW	1848	ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1460	{	1849	{
1461	/* some systems, notably openbsd and darwin, fail to properly	1850	/* some systems, notably openbsd and darwin, fail to properly
1462	* implement realloc (x, 0) (as required by both ansi c-89 and	1851	* implement realloc (x, 0) (as required by both ansi c-89 and
1463	* the single unix specification, so work around them here.	1852	* the single unix specification, so work around them here.
1464	* recently, also (at least) fedora and debian started breaking it,	1853	* recently, also (at least) fedora and debian started breaking it,
…		…
1470		1859
1471	free (ptr);	1860	free (ptr);
1472	return 0;	1861	return 0;
1473	}	1862	}
1474		1863
1475	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	1864	static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1476		1865
1477	void ecb_cold	1866	ecb_cold
		1867	void
1478	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW	1868	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1479	{	1869	{
1480	alloc = cb;	1870	alloc = cb;
1481	}	1871	}
1482		1872
1483	inline_speed void *	1873	inline_speed void *
…		…
1510	typedef struct	1900	typedef struct
1511	{	1901	{
1512	WL head;	1902	WL head;
1513	unsigned char events; /* the events watched for */	1903	unsigned char events; /* the events watched for */
1514	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */	1904	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1515	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	1905	unsigned char emask; /* some backends store the actual kernel mask in here */
1516	unsigned char unused;	1906	unsigned char eflags; /* flags field for use by backends */
1517	#if EV_USE_EPOLL	1907	#if EV_USE_EPOLL
1518	unsigned int egen; /* generation counter to counter epoll bugs */	1908	unsigned int egen; /* generation counter to counter epoll bugs */
1519	#endif	1909	#endif
1520	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP	1910	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1521	SOCKET handle;	1911	SOCKET handle;
…		…
1585	static int ev_default_loop_ptr;	1975	static int ev_default_loop_ptr;
1586		1976
1587	#endif	1977	#endif
1588		1978
1589	#if EV_FEATURE_API	1979	#if EV_FEATURE_API
1590	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	1980	# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1591	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	1981	# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1592	# define EV_INVOKE_PENDING invoke_cb (EV_A)	1982	# define EV_INVOKE_PENDING invoke_cb (EV_A)
1593	#else	1983	#else
1594	# define EV_RELEASE_CB (void)0	1984	# define EV_RELEASE_CB (void)0
1595	# define EV_ACQUIRE_CB (void)0	1985	# define EV_ACQUIRE_CB (void)0
1596	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	1986	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
…		…
1600		1990
1601	/*****************************************************************************/	1991	/*****************************************************************************/
1602		1992
1603	#ifndef EV_HAVE_EV_TIME	1993	#ifndef EV_HAVE_EV_TIME
1604	ev_tstamp	1994	ev_tstamp
1605	ev_time (void) EV_THROW	1995	ev_time (void) EV_NOEXCEPT
1606	{	1996	{
1607	#if EV_USE_REALTIME	1997	#if EV_USE_REALTIME
1608	if (expect_true (have_realtime))	1998	if (ecb_expect_true (have_realtime))
1609	{	1999	{
1610	struct timespec ts;	2000	struct timespec ts;
1611	clock_gettime (CLOCK_REALTIME, &ts);	2001	clock_gettime (CLOCK_REALTIME, &ts);
1612	return ts.tv_sec + ts.tv_nsec * 1e-9;	2002	return EV_TS_GET (ts);
1613	}	2003	}
1614	#endif	2004	#endif
1615		2005
1616	struct timeval tv;	2006	struct timeval tv;
1617	gettimeofday (&tv, 0);	2007	gettimeofday (&tv, 0);
1618	return tv.tv_sec + tv.tv_usec * 1e-6;	2008	return EV_TV_GET (tv);
1619	}	2009	}
1620	#endif	2010	#endif
1621		2011
1622	inline_size ev_tstamp	2012	inline_size ev_tstamp
1623	get_clock (void)	2013	get_clock (void)
1624	{	2014	{
1625	#if EV_USE_MONOTONIC	2015	#if EV_USE_MONOTONIC
1626	if (expect_true (have_monotonic))	2016	if (ecb_expect_true (have_monotonic))
1627	{	2017	{
1628	struct timespec ts;	2018	struct timespec ts;
1629	clock_gettime (CLOCK_MONOTONIC, &ts);	2019	clock_gettime (CLOCK_MONOTONIC, &ts);
1630	return ts.tv_sec + ts.tv_nsec * 1e-9;	2020	return EV_TS_GET (ts);
1631	}	2021	}
1632	#endif	2022	#endif
1633		2023
1634	return ev_time ();	2024	return ev_time ();
1635	}	2025	}
1636		2026
1637	#if EV_MULTIPLICITY	2027	#if EV_MULTIPLICITY
1638	ev_tstamp	2028	ev_tstamp
1639	ev_now (EV_P) EV_THROW	2029	ev_now (EV_P) EV_NOEXCEPT
1640	{	2030	{
1641	return ev_rt_now;	2031	return ev_rt_now;
1642	}	2032	}
1643	#endif	2033	#endif
1644		2034
1645	void	2035	void
1646	ev_sleep (ev_tstamp delay) EV_THROW	2036	ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1647	{	2037	{
1648	if (delay > 0.)	2038	if (delay > 0.)
1649	{	2039	{
1650	#if EV_USE_NANOSLEEP	2040	#if EV_USE_NANOSLEEP
1651	struct timespec ts;	2041	struct timespec ts;
1652		2042
1653	EV_TS_SET (ts, delay);	2043	EV_TS_SET (ts, delay);
1654	nanosleep (&ts, 0);	2044	nanosleep (&ts, 0);
1655	#elif defined _WIN32	2045	#elif defined _WIN32
		2046	/* maybe this should round up, as ms is very low resolution */
		2047	/* compared to select (µs) or nanosleep (ns) */
1656	Sleep ((unsigned long)(delay * 1e3));	2048	Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1657	#else	2049	#else
1658	struct timeval tv;	2050	struct timeval tv;
1659		2051
1660	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	2052	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1661	/* something not guaranteed by newer posix versions, but guaranteed */	2053	/* something not guaranteed by newer posix versions, but guaranteed */
…		…
1691	}	2083	}
1692		2084
1693	return ncur;	2085	return ncur;
1694	}	2086	}
1695		2087
1696	static void * noinline ecb_cold	2088	ecb_noinline ecb_cold
		2089	static void *
1697	array_realloc (int elem, void *base, int *cur, int cnt)	2090	array_realloc (int elem, void *base, int *cur, int cnt)
1698	{	2091	{
1699	*cur = array_nextsize (elem, *cur, cnt);	2092	*cur = array_nextsize (elem, *cur, cnt);
1700	return ev_realloc (base, elem * *cur);	2093	return ev_realloc (base, elem * *cur);
1701	}	2094	}
1702		2095
		2096	#define array_needsize_noinit(base,offset,count)
		2097
1703	#define array_init_zero(base,count) \	2098	#define array_needsize_zerofill(base,offset,count) \
1704	memset ((void *)(base), 0, sizeof (*(base)) * (count))	2099	memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1705		2100
1706	#define array_needsize(type,base,cur,cnt,init) \	2101	#define array_needsize(type,base,cur,cnt,init) \
1707	if (expect_false ((cnt) > (cur))) \	2102	if (ecb_expect_false ((cnt) > (cur))) \
1708	{ \	2103	{ \
1709	int ecb_unused ocur_ = (cur); \	2104	ecb_unused int ocur_ = (cur); \
1710	(base) = (type *)array_realloc \	2105	(base) = (type *)array_realloc \
1711	(sizeof (type), (base), &(cur), (cnt)); \	2106	(sizeof (type), (base), &(cur), (cnt)); \
1712	init ((base) + (ocur_), (cur) - ocur_); \	2107	init ((base), ocur_, ((cur) - ocur_)); \
1713	}	2108	}
1714		2109
1715	#if 0	2110	#if 0
1716	#define array_slim(type,stem) \	2111	#define array_slim(type,stem) \
1717	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	2112	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
…		…
1726	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	2121	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1727		2122
1728	/*****************************************************************************/	2123	/*****************************************************************************/
1729		2124
1730	/* dummy callback for pending events */	2125	/* dummy callback for pending events */
1731	static void noinline	2126	ecb_noinline
		2127	static void
1732	pendingcb (EV_P_ ev_prepare *w, int revents)	2128	pendingcb (EV_P_ ev_prepare *w, int revents)
1733	{	2129	{
1734	}	2130	}
1735		2131
1736	void noinline	2132	ecb_noinline
		2133	void
1737	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	2134	ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1738	{	2135	{
1739	W w_ = (W)w;	2136	W w_ = (W)w;
1740	int pri = ABSPRI (w_);	2137	int pri = ABSPRI (w_);
1741		2138
1742	if (expect_false (w_->pending))	2139	if (ecb_expect_false (w_->pending))
1743	pendings [pri][w_->pending - 1].events |= revents;	2140	pendings [pri][w_->pending - 1].events |= revents;
1744	else	2141	else
1745	{	2142	{
1746	w_->pending = ++pendingcnt [pri];	2143	w_->pending = ++pendingcnt [pri];
1747	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	2144	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1748	pendings [pri][w_->pending - 1].w = w_;	2145	pendings [pri][w_->pending - 1].w = w_;
1749	pendings [pri][w_->pending - 1].events = revents;	2146	pendings [pri][w_->pending - 1].events = revents;
1750	}	2147	}
1751		2148
1752	pendingpri = NUMPRI - 1;	2149	pendingpri = NUMPRI - 1;
1753	}	2150	}
1754		2151
1755	inline_speed void	2152	inline_speed void
1756	feed_reverse (EV_P_ W w)	2153	feed_reverse (EV_P_ W w)
1757	{	2154	{
1758	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);	2155	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1759	rfeeds [rfeedcnt++] = w;	2156	rfeeds [rfeedcnt++] = w;
1760	}	2157	}
1761		2158
1762	inline_size void	2159	inline_size void
1763	feed_reverse_done (EV_P_ int revents)	2160	feed_reverse_done (EV_P_ int revents)
…		…
1798	inline_speed void	2195	inline_speed void
1799	fd_event (EV_P_ int fd, int revents)	2196	fd_event (EV_P_ int fd, int revents)
1800	{	2197	{
1801	ANFD *anfd = anfds + fd;	2198	ANFD *anfd = anfds + fd;
1802		2199
1803	if (expect_true (!anfd->reify))	2200	if (ecb_expect_true (!anfd->reify))
1804	fd_event_nocheck (EV_A_ fd, revents);	2201	fd_event_nocheck (EV_A_ fd, revents);
1805	}	2202	}
1806		2203
1807	void	2204	void
1808	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW	2205	ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1809	{	2206	{
1810	if (fd >= 0 && fd < anfdmax)	2207	if (fd >= 0 && fd < anfdmax)
1811	fd_event_nocheck (EV_A_ fd, revents);	2208	fd_event_nocheck (EV_A_ fd, revents);
1812	}	2209	}
1813		2210
…		…
1850	ev_io *w;	2247	ev_io *w;
1851		2248
1852	unsigned char o_events = anfd->events;	2249	unsigned char o_events = anfd->events;
1853	unsigned char o_reify = anfd->reify;	2250	unsigned char o_reify = anfd->reify;
1854		2251
1855	anfd->reify = 0;	2252	anfd->reify = 0;
1856		2253
1857	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */	2254	/*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1858	{	2255	{
1859	anfd->events = 0;	2256	anfd->events = 0;
1860		2257
1861	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	2258	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1862	anfd->events |= (unsigned char)w->events;	2259	anfd->events |= (unsigned char)w->events;
…		…
1871		2268
1872	fdchangecnt = 0;	2269	fdchangecnt = 0;
1873	}	2270	}
1874		2271
1875	/* something about the given fd changed */	2272	/* something about the given fd changed */
1876	inline_size void	2273	inline_size
		2274	void
1877	fd_change (EV_P_ int fd, int flags)	2275	fd_change (EV_P_ int fd, int flags)
1878	{	2276	{
1879	unsigned char reify = anfds [fd].reify;	2277	unsigned char reify = anfds [fd].reify;
1880	anfds [fd].reify |= flags;	2278	anfds [fd].reify |= flags;
1881		2279
1882	if (expect_true (!reify))	2280	if (ecb_expect_true (!reify))
1883	{	2281	{
1884	++fdchangecnt;	2282	++fdchangecnt;
1885	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	2283	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1886	fdchanges [fdchangecnt - 1] = fd;	2284	fdchanges [fdchangecnt - 1] = fd;
1887	}	2285	}
1888	}	2286	}
1889		2287
1890	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	2288	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1891	inline_speed void ecb_cold	2289	inline_speed ecb_cold void
1892	fd_kill (EV_P_ int fd)	2290	fd_kill (EV_P_ int fd)
1893	{	2291	{
1894	ev_io *w;	2292	ev_io *w;
1895		2293
1896	while ((w = (ev_io *)anfds [fd].head))	2294	while ((w = (ev_io *)anfds [fd].head))
…		…
1899	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	2297	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1900	}	2298	}
1901	}	2299	}
1902		2300
1903	/* check whether the given fd is actually valid, for error recovery */	2301	/* check whether the given fd is actually valid, for error recovery */
1904	inline_size int ecb_cold	2302	inline_size ecb_cold int
1905	fd_valid (int fd)	2303	fd_valid (int fd)
1906	{	2304	{
1907	#ifdef _WIN32	2305	#ifdef _WIN32
1908	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2306	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909	#else	2307	#else
1910	return fcntl (fd, F_GETFD) != -1;	2308	return fcntl (fd, F_GETFD) != -1;
1911	#endif	2309	#endif
1912	}	2310	}
1913		2311
1914	/* called on EBADF to verify fds */	2312	/* called on EBADF to verify fds */
1915	static void noinline ecb_cold	2313	ecb_noinline ecb_cold
		2314	static void
1916	fd_ebadf (EV_P)	2315	fd_ebadf (EV_P)
1917	{	2316	{
1918	int fd;	2317	int fd;
1919		2318
1920	for (fd = 0; fd < anfdmax; ++fd)	2319	for (fd = 0; fd < anfdmax; ++fd)
…		…
1922	if (!fd_valid (fd) && errno == EBADF)	2321	if (!fd_valid (fd) && errno == EBADF)
1923	fd_kill (EV_A_ fd);	2322	fd_kill (EV_A_ fd);
1924	}	2323	}
1925		2324
1926	/* called on ENOMEM in select/poll to kill some fds and retry */	2325	/* called on ENOMEM in select/poll to kill some fds and retry */
1927	static void noinline ecb_cold	2326	ecb_noinline ecb_cold
		2327	static void
1928	fd_enomem (EV_P)	2328	fd_enomem (EV_P)
1929	{	2329	{
1930	int fd;	2330	int fd;
1931		2331
1932	for (fd = anfdmax; fd--; )	2332	for (fd = anfdmax; fd--; )
…		…
1936	break;	2336	break;
1937	}	2337	}
1938	}	2338	}
1939		2339
1940	/* usually called after fork if backend needs to re-arm all fds from scratch */	2340	/* usually called after fork if backend needs to re-arm all fds from scratch */
1941	static void noinline	2341	ecb_noinline
		2342	static void
1942	fd_rearm_all (EV_P)	2343	fd_rearm_all (EV_P)
1943	{	2344	{
1944	int fd;	2345	int fd;
1945		2346
1946	for (fd = 0; fd < anfdmax; ++fd)	2347	for (fd = 0; fd < anfdmax; ++fd)
…		…
1999	ev_tstamp minat;	2400	ev_tstamp minat;
2000	ANHE *minpos;	2401	ANHE *minpos;
2001	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;	2402	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2002		2403
2003	/* find minimum child */	2404	/* find minimum child */
2004	if (expect_true (pos + DHEAP - 1 < E))	2405	if (ecb_expect_true (pos + DHEAP - 1 < E))
2005	{	2406	{
2006	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	2407	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2007	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	2408	if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2008	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	2409	if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2009	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	2410	if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2010	}	2411	}
2011	else if (pos < E)	2412	else if (pos < E)
2012	{	2413	{
2013	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	2414	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2014	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	2415	if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2015	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	2416	if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2016	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	2417	if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2017	}	2418	}
2018	else	2419	else
2019	break;	2420	break;
2020		2421
2021	if (ANHE_at (he) <= minat)	2422	if (ANHE_at (he) <= minat)
…		…
2029		2430
2030	heap [k] = he;	2431	heap [k] = he;
2031	ev_active (ANHE_w (he)) = k;	2432	ev_active (ANHE_w (he)) = k;
2032	}	2433	}
2033		2434
2034	#else /* 4HEAP */	2435	#else /* not 4HEAP */
2035		2436
2036	#define HEAP0 1	2437	#define HEAP0 1
2037	#define HPARENT(k) ((k) >> 1)	2438	#define HPARENT(k) ((k) >> 1)
2038	#define UPHEAP_DONE(p,k) (!(p))	2439	#define UPHEAP_DONE(p,k) (!(p))
2039		2440
…		…
2127		2528
2128	/*****************************************************************************/	2529	/*****************************************************************************/
2129		2530
2130	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2531	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131		2532
2132	static void noinline ecb_cold	2533	ecb_noinline ecb_cold
		2534	static void
2133	evpipe_init (EV_P)	2535	evpipe_init (EV_P)
2134	{	2536	{
2135	if (!ev_is_active (&pipe_w))	2537	if (!ev_is_active (&pipe_w))
2136	{	2538	{
2137	int fds [2];	2539	int fds [2];
…		…
2177	inline_speed void	2579	inline_speed void
2178	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	2580	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2179	{	2581	{
2180	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */	2582	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2181		2583
2182	if (expect_true (*flag))	2584	if (ecb_expect_true (*flag))
2183	return;	2585	return;
2184		2586
2185	*flag = 1;	2587	*flag = 1;
2186	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */	2588	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2187		2589
…		…
2208	#endif	2610	#endif
2209	{	2611	{
2210	#ifdef _WIN32	2612	#ifdef _WIN32
2211	WSABUF buf;	2613	WSABUF buf;
2212	DWORD sent;	2614	DWORD sent;
2213	buf.buf = &buf;	2615	buf.buf = (char *)&buf;
2214	buf.len = 1;	2616	buf.len = 1;
2215	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);	2617	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2216	#else	2618	#else
2217	write (evpipe [1], &(evpipe [1]), 1);	2619	write (evpipe [1], &(evpipe [1]), 1);
2218	#endif	2620	#endif
…		…
2264	sig_pending = 0;	2666	sig_pending = 0;
2265		2667
2266	ECB_MEMORY_FENCE;	2668	ECB_MEMORY_FENCE;
2267		2669
2268	for (i = EV_NSIG - 1; i--; )	2670	for (i = EV_NSIG - 1; i--; )
2269	if (expect_false (signals [i].pending))	2671	if (ecb_expect_false (signals [i].pending))
2270	ev_feed_signal_event (EV_A_ i + 1);	2672	ev_feed_signal_event (EV_A_ i + 1);
2271	}	2673	}
2272	#endif	2674	#endif
2273		2675
2274	#if EV_ASYNC_ENABLE	2676	#if EV_ASYNC_ENABLE
…		…
2290	}	2692	}
2291		2693
2292	/*****************************************************************************/	2694	/*****************************************************************************/
2293		2695
2294	void	2696	void
2295	ev_feed_signal (int signum) EV_THROW	2697	ev_feed_signal (int signum) EV_NOEXCEPT
2296	{	2698	{
2297	#if EV_MULTIPLICITY	2699	#if EV_MULTIPLICITY
2298	EV_P;	2700	EV_P;
2299	ECB_MEMORY_FENCE_ACQUIRE;	2701	ECB_MEMORY_FENCE_ACQUIRE;
2300	EV_A = signals [signum - 1].loop;	2702	EV_A = signals [signum - 1].loop;
…		…
2315	#endif	2717	#endif
2316		2718
2317	ev_feed_signal (signum);	2719	ev_feed_signal (signum);
2318	}	2720	}
2319		2721
2320	void noinline	2722	ecb_noinline
		2723	void
2321	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2724	ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2322	{	2725	{
2323	WL w;	2726	WL w;
2324		2727
2325	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2728	if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2326	return;	2729	return;
2327		2730
2328	--signum;	2731	--signum;
2329		2732
2330	#if EV_MULTIPLICITY	2733	#if EV_MULTIPLICITY
2331	/* it is permissible to try to feed a signal to the wrong loop */	2734	/* it is permissible to try to feed a signal to the wrong loop */
2332	/* or, likely more useful, feeding a signal nobody is waiting for */	2735	/* or, likely more useful, feeding a signal nobody is waiting for */
2333		2736
2334	if (expect_false (signals [signum].loop != EV_A))	2737	if (ecb_expect_false (signals [signum].loop != EV_A))
2335	return;	2738	return;
2336	#endif	2739	#endif
2337		2740
2338	signals [signum].pending = 0;	2741	signals [signum].pending = 0;
2339	ECB_MEMORY_FENCE_RELEASE;	2742	ECB_MEMORY_FENCE_RELEASE;
…		…
2435	# include "ev_kqueue.c"	2838	# include "ev_kqueue.c"
2436	#endif	2839	#endif
2437	#if EV_USE_EPOLL	2840	#if EV_USE_EPOLL
2438	# include "ev_epoll.c"	2841	# include "ev_epoll.c"
2439	#endif	2842	#endif
		2843	#if EV_USE_LINUXAIO
		2844	# include "ev_linuxaio.c"
		2845	#endif
		2846	#if EV_USE_IOURING
		2847	# include "ev_iouring.c"
		2848	#endif
2440	#if EV_USE_POLL	2849	#if EV_USE_POLL
2441	# include "ev_poll.c"	2850	# include "ev_poll.c"
2442	#endif	2851	#endif
2443	#if EV_USE_SELECT	2852	#if EV_USE_SELECT
2444	# include "ev_select.c"	2853	# include "ev_select.c"
2445	#endif	2854	#endif
2446		2855
2447	int ecb_cold	2856	ecb_cold int
2448	ev_version_major (void) EV_THROW	2857	ev_version_major (void) EV_NOEXCEPT
2449	{	2858	{
2450	return EV_VERSION_MAJOR;	2859	return EV_VERSION_MAJOR;
2451	}	2860	}
2452		2861
2453	int ecb_cold	2862	ecb_cold int
2454	ev_version_minor (void) EV_THROW	2863	ev_version_minor (void) EV_NOEXCEPT
2455	{	2864	{
2456	return EV_VERSION_MINOR;	2865	return EV_VERSION_MINOR;
2457	}	2866	}
2458		2867
2459	/* return true if we are running with elevated privileges and should ignore env variables */	2868	/* return true if we are running with elevated privileges and should ignore env variables */
2460	int inline_size ecb_cold	2869	inline_size ecb_cold int
2461	enable_secure (void)	2870	enable_secure (void)
2462	{	2871	{
2463	#ifdef _WIN32	2872	#ifdef _WIN32
2464	return 0;	2873	return 0;
2465	#else	2874	#else
2466	return getuid () != geteuid ()	2875	return getuid () != geteuid ()
2467	|| getgid () != getegid ();	2876	|| getgid () != getegid ();
2468	#endif	2877	#endif
2469	}	2878	}
2470		2879
2471	unsigned int ecb_cold	2880	ecb_cold
		2881	unsigned int
2472	ev_supported_backends (void) EV_THROW	2882	ev_supported_backends (void) EV_NOEXCEPT
2473	{	2883	{
2474	unsigned int flags = 0;	2884	unsigned int flags = 0;
2475		2885
2476	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2886	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2477	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2887	if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2478	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;	2888	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		2889	if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
		2890	if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2479	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;	2891	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2480	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2892	if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2481		2893
2482	return flags;	2894	return flags;
2483	}	2895	}
2484		2896
2485	unsigned int ecb_cold	2897	ecb_cold
		2898	unsigned int
2486	ev_recommended_backends (void) EV_THROW	2899	ev_recommended_backends (void) EV_NOEXCEPT
2487	{	2900	{
2488	unsigned int flags = ev_supported_backends ();	2901	unsigned int flags = ev_supported_backends ();
2489		2902
2490	#ifndef __NetBSD__	2903	#ifndef __NetBSD__
2491	/* kqueue is borked on everything but netbsd apparently */	2904	/* kqueue is borked on everything but netbsd apparently */
…		…
2499	#endif	2912	#endif
2500	#ifdef __FreeBSD__	2913	#ifdef __FreeBSD__
2501	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */	2914	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2502	#endif	2915	#endif
2503		2916
		2917	/* TODO: linuxaio is very experimental */
		2918	#if !EV_RECOMMEND_LINUXAIO
		2919	flags &= ~EVBACKEND_LINUXAIO;
		2920	#endif
		2921	/* TODO: linuxaio is super experimental */
		2922	#if !EV_RECOMMEND_IOURING
		2923	flags &= ~EVBACKEND_IOURING;
		2924	#endif
		2925
2504	return flags;	2926	return flags;
2505	}	2927	}
2506		2928
2507	unsigned int ecb_cold	2929	ecb_cold
		2930	unsigned int
2508	ev_embeddable_backends (void) EV_THROW	2931	ev_embeddable_backends (void) EV_NOEXCEPT
2509	{	2932	{
2510	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2933	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511		2934
2512	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2935	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2513	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2936	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2514	flags &= ~EVBACKEND_EPOLL;	2937	flags &= ~EVBACKEND_EPOLL;
2515		2938
		2939	/* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
		2940
		2941	/* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
		2942	* because our backend_fd is the epoll fd we need as fallback.
		2943	* if the kernel ever is fixed, this might change...
		2944	*/
		2945
2516	return flags;	2946	return flags;
2517	}	2947	}
2518		2948
2519	unsigned int	2949	unsigned int
2520	ev_backend (EV_P) EV_THROW	2950	ev_backend (EV_P) EV_NOEXCEPT
2521	{	2951	{
2522	return backend;	2952	return backend;
2523	}	2953	}
2524		2954
2525	#if EV_FEATURE_API	2955	#if EV_FEATURE_API
2526	unsigned int	2956	unsigned int
2527	ev_iteration (EV_P) EV_THROW	2957	ev_iteration (EV_P) EV_NOEXCEPT
2528	{	2958	{
2529	return loop_count;	2959	return loop_count;
2530	}	2960	}
2531		2961
2532	unsigned int	2962	unsigned int
2533	ev_depth (EV_P) EV_THROW	2963	ev_depth (EV_P) EV_NOEXCEPT
2534	{	2964	{
2535	return loop_depth;	2965	return loop_depth;
2536	}	2966	}
2537		2967
2538	void	2968	void
2539	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	2969	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2540	{	2970	{
2541	io_blocktime = interval;	2971	io_blocktime = interval;
2542	}	2972	}
2543		2973
2544	void	2974	void
2545	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	2975	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2546	{	2976	{
2547	timeout_blocktime = interval;	2977	timeout_blocktime = interval;
2548	}	2978	}
2549		2979
2550	void	2980	void
2551	ev_set_userdata (EV_P_ void *data) EV_THROW	2981	ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2552	{	2982	{
2553	userdata = data;	2983	userdata = data;
2554	}	2984	}
2555		2985
2556	void *	2986	void *
2557	ev_userdata (EV_P) EV_THROW	2987	ev_userdata (EV_P) EV_NOEXCEPT
2558	{	2988	{
2559	return userdata;	2989	return userdata;
2560	}	2990	}
2561		2991
2562	void	2992	void
2563	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW	2993	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2564	{	2994	{
2565	invoke_cb = invoke_pending_cb;	2995	invoke_cb = invoke_pending_cb;
2566	}	2996	}
2567		2997
2568	void	2998	void
2569	ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW	2999	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2570	{	3000	{
2571	release_cb = release;	3001	release_cb = release;
2572	acquire_cb = acquire;	3002	acquire_cb = acquire;
2573	}	3003	}
2574	#endif	3004	#endif
2575		3005
2576	/* initialise a loop structure, must be zero-initialised */	3006	/* initialise a loop structure, must be zero-initialised */
2577	static void noinline ecb_cold	3007	ecb_noinline ecb_cold
		3008	static void
2578	loop_init (EV_P_ unsigned int flags) EV_THROW	3009	loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2579	{	3010	{
2580	if (!backend)	3011	if (!backend)
2581	{	3012	{
2582	origflags = flags;	3013	origflags = flags;
2583		3014
…		…
2641		3072
2642	if (!(flags & EVBACKEND_MASK))	3073	if (!(flags & EVBACKEND_MASK))
2643	flags |= ev_recommended_backends ();	3074	flags |= ev_recommended_backends ();
2644		3075
2645	#if EV_USE_IOCP	3076	#if EV_USE_IOCP
2646	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);	3077	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2647	#endif	3078	#endif
2648	#if EV_USE_PORT	3079	#if EV_USE_PORT
2649	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	3080	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2650	#endif	3081	#endif
2651	#if EV_USE_KQUEUE	3082	#if EV_USE_KQUEUE
2652	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	3083	if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
		3084	#endif
		3085	#if EV_USE_IOURING
		3086	if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
		3087	#endif
		3088	#if EV_USE_LINUXAIO
		3089	if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2653	#endif	3090	#endif
2654	#if EV_USE_EPOLL	3091	#if EV_USE_EPOLL
2655	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);	3092	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2656	#endif	3093	#endif
2657	#if EV_USE_POLL	3094	#if EV_USE_POLL
2658	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);	3095	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2659	#endif	3096	#endif
2660	#if EV_USE_SELECT	3097	#if EV_USE_SELECT
2661	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	3098	if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2662	#endif	3099	#endif
2663		3100
2664	ev_prepare_init (&pending_w, pendingcb);	3101	ev_prepare_init (&pending_w, pendingcb);
2665		3102
2666	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3103	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
…		…
2669	#endif	3106	#endif
2670	}	3107	}
2671	}	3108	}
2672		3109
2673	/* free up a loop structure */	3110	/* free up a loop structure */
2674	void ecb_cold	3111	ecb_cold
		3112	void
2675	ev_loop_destroy (EV_P)	3113	ev_loop_destroy (EV_P)
2676	{	3114	{
2677	int i;	3115	int i;
2678		3116
2679	#if EV_MULTIPLICITY	3117	#if EV_MULTIPLICITY
…		…
2682	return;	3120	return;
2683	#endif	3121	#endif
2684		3122
2685	#if EV_CLEANUP_ENABLE	3123	#if EV_CLEANUP_ENABLE
2686	/* queue cleanup watchers (and execute them) */	3124	/* queue cleanup watchers (and execute them) */
2687	if (expect_false (cleanupcnt))	3125	if (ecb_expect_false (cleanupcnt))
2688	{	3126	{
2689	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);	3127	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2690	EV_INVOKE_PENDING;	3128	EV_INVOKE_PENDING;
2691	}	3129	}
2692	#endif	3130	#endif
…		…
2720		3158
2721	if (backend_fd >= 0)	3159	if (backend_fd >= 0)
2722	close (backend_fd);	3160	close (backend_fd);
2723		3161
2724	#if EV_USE_IOCP	3162	#if EV_USE_IOCP
2725	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);	3163	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2726	#endif	3164	#endif
2727	#if EV_USE_PORT	3165	#if EV_USE_PORT
2728	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	3166	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2729	#endif	3167	#endif
2730	#if EV_USE_KQUEUE	3168	#if EV_USE_KQUEUE
2731	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	3169	if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
		3170	#endif
		3171	#if EV_USE_IOURING
		3172	if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
		3173	#endif
		3174	#if EV_USE_LINUXAIO
		3175	if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2732	#endif	3176	#endif
2733	#if EV_USE_EPOLL	3177	#if EV_USE_EPOLL
2734	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);	3178	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2735	#endif	3179	#endif
2736	#if EV_USE_POLL	3180	#if EV_USE_POLL
2737	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);	3181	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2738	#endif	3182	#endif
2739	#if EV_USE_SELECT	3183	#if EV_USE_SELECT
2740	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	3184	if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2741	#endif	3185	#endif
2742		3186
2743	for (i = NUMPRI; i--; )	3187	for (i = NUMPRI; i--; )
2744	{	3188	{
2745	array_free (pending, [i]);	3189	array_free (pending, [i]);
…		…
2787		3231
2788	inline_size void	3232	inline_size void
2789	loop_fork (EV_P)	3233	loop_fork (EV_P)
2790	{	3234	{
2791	#if EV_USE_PORT	3235	#if EV_USE_PORT
2792	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	3236	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2793	#endif	3237	#endif
2794	#if EV_USE_KQUEUE	3238	#if EV_USE_KQUEUE
2795	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	3239	if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
		3240	#endif
		3241	#if EV_USE_IOURING
		3242	if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
		3243	#endif
		3244	#if EV_USE_LINUXAIO
		3245	if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2796	#endif	3246	#endif
2797	#if EV_USE_EPOLL	3247	#if EV_USE_EPOLL
2798	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	3248	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2799	#endif	3249	#endif
2800	#if EV_USE_INOTIFY	3250	#if EV_USE_INOTIFY
2801	infy_fork (EV_A);	3251	infy_fork (EV_A);
2802	#endif	3252	#endif
2803		3253
2804	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3254	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805	if (ev_is_active (&pipe_w))	3255	if (ev_is_active (&pipe_w) && postfork != 2)
2806	{	3256	{
2807	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	3257	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2808		3258
2809	ev_ref (EV_A);	3259	ev_ref (EV_A);
2810	ev_io_stop (EV_A_ &pipe_w);	3260	ev_io_stop (EV_A_ &pipe_w);
…		…
2821	postfork = 0;	3271	postfork = 0;
2822	}	3272	}
2823		3273
2824	#if EV_MULTIPLICITY	3274	#if EV_MULTIPLICITY
2825		3275
		3276	ecb_cold
2826	struct ev_loop * ecb_cold	3277	struct ev_loop *
2827	ev_loop_new (unsigned int flags) EV_THROW	3278	ev_loop_new (unsigned int flags) EV_NOEXCEPT
2828	{	3279	{
2829	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3280	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830		3281
2831	memset (EV_A, 0, sizeof (struct ev_loop));	3282	memset (EV_A, 0, sizeof (struct ev_loop));
2832	loop_init (EV_A_ flags);	3283	loop_init (EV_A_ flags);
…		…
2839	}	3290	}
2840		3291
2841	#endif /* multiplicity */	3292	#endif /* multiplicity */
2842		3293
2843	#if EV_VERIFY	3294	#if EV_VERIFY
2844	static void noinline ecb_cold	3295	ecb_noinline ecb_cold
		3296	static void
2845	verify_watcher (EV_P_ W w)	3297	verify_watcher (EV_P_ W w)
2846	{	3298	{
2847	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	3299	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2848		3300
2849	if (w->pending)	3301	if (w->pending)
2850	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	3302	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2851	}	3303	}
2852		3304
2853	static void noinline ecb_cold	3305	ecb_noinline ecb_cold
		3306	static void
2854	verify_heap (EV_P_ ANHE *heap, int N)	3307	verify_heap (EV_P_ ANHE *heap, int N)
2855	{	3308	{
2856	int i;	3309	int i;
2857		3310
2858	for (i = HEAP0; i < N + HEAP0; ++i)	3311	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2863		3316
2864	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3317	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865	}	3318	}
2866	}	3319	}
2867		3320
2868	static void noinline ecb_cold	3321	ecb_noinline ecb_cold
		3322	static void
2869	array_verify (EV_P_ W *ws, int cnt)	3323	array_verify (EV_P_ W *ws, int cnt)
2870	{	3324	{
2871	while (cnt--)	3325	while (cnt--)
2872	{	3326	{
2873	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3327	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2876	}	3330	}
2877	#endif	3331	#endif
2878		3332
2879	#if EV_FEATURE_API	3333	#if EV_FEATURE_API
2880	void ecb_cold	3334	void ecb_cold
2881	ev_verify (EV_P) EV_THROW	3335	ev_verify (EV_P) EV_NOEXCEPT
2882	{	3336	{
2883	#if EV_VERIFY	3337	#if EV_VERIFY
2884	int i;	3338	int i;
2885	WL w, w2;	3339	WL w, w2;
2886		3340
…		…
2962	#endif	3416	#endif
2963	}	3417	}
2964	#endif	3418	#endif
2965		3419
2966	#if EV_MULTIPLICITY	3420	#if EV_MULTIPLICITY
		3421	ecb_cold
2967	struct ev_loop * ecb_cold	3422	struct ev_loop *
2968	#else	3423	#else
2969	int	3424	int
2970	#endif	3425	#endif
2971	ev_default_loop (unsigned int flags) EV_THROW	3426	ev_default_loop (unsigned int flags) EV_NOEXCEPT
2972	{	3427	{
2973	if (!ev_default_loop_ptr)	3428	if (!ev_default_loop_ptr)
2974	{	3429	{
2975	#if EV_MULTIPLICITY	3430	#if EV_MULTIPLICITY
2976	EV_P = ev_default_loop_ptr = &default_loop_struct;	3431	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2995		3450
2996	return ev_default_loop_ptr;	3451	return ev_default_loop_ptr;
2997	}	3452	}
2998		3453
2999	void	3454	void
3000	ev_loop_fork (EV_P) EV_THROW	3455	ev_loop_fork (EV_P) EV_NOEXCEPT
3001	{	3456	{
3002	postfork = 1;	3457	postfork = 1;
3003	}	3458	}
3004		3459
3005	/*****************************************************************************/	3460	/*****************************************************************************/
…		…
3009	{	3464	{
3010	EV_CB_INVOKE ((W)w, revents);	3465	EV_CB_INVOKE ((W)w, revents);
3011	}	3466	}
3012		3467
3013	unsigned int	3468	unsigned int
3014	ev_pending_count (EV_P) EV_THROW	3469	ev_pending_count (EV_P) EV_NOEXCEPT
3015	{	3470	{
3016	int pri;	3471	int pri;
3017	unsigned int count = 0;	3472	unsigned int count = 0;
3018		3473
3019	for (pri = NUMPRI; pri--; )	3474	for (pri = NUMPRI; pri--; )
3020	count += pendingcnt [pri];	3475	count += pendingcnt [pri];
3021		3476
3022	return count;	3477	return count;
3023	}	3478	}
3024		3479
3025	void noinline	3480	ecb_noinline
		3481	void
3026	ev_invoke_pending (EV_P)	3482	ev_invoke_pending (EV_P)
3027	{	3483	{
3028	pendingpri = NUMPRI;	3484	pendingpri = NUMPRI;
3029		3485
3030	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3486	do
3031	{	3487	{
3032	--pendingpri;	3488	--pendingpri;
3033		3489
		3490	/* pendingpri possibly gets modified in the inner loop */
3034	while (pendingcnt [pendingpri])	3491	while (pendingcnt [pendingpri])
3035	{	3492	{
3036	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];	3493	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3037		3494
3038	p->w->pending = 0;	3495	p->w->pending = 0;
3039	EV_CB_INVOKE (p->w, p->events);	3496	EV_CB_INVOKE (p->w, p->events);
3040	EV_FREQUENT_CHECK;	3497	EV_FREQUENT_CHECK;
3041	}	3498	}
3042	}	3499	}
		3500	while (pendingpri);
3043	}	3501	}
3044		3502
3045	#if EV_IDLE_ENABLE	3503	#if EV_IDLE_ENABLE
3046	/* make idle watchers pending. this handles the "call-idle */	3504	/* make idle watchers pending. this handles the "call-idle */
3047	/* only when higher priorities are idle" logic */	3505	/* only when higher priorities are idle" logic */
3048	inline_size void	3506	inline_size void
3049	idle_reify (EV_P)	3507	idle_reify (EV_P)
3050	{	3508	{
3051	if (expect_false (idleall))	3509	if (ecb_expect_false (idleall))
3052	{	3510	{
3053	int pri;	3511	int pri;
3054		3512
3055	for (pri = NUMPRI; pri--; )	3513	for (pri = NUMPRI; pri--; )
3056	{	3514	{
…		…
3105	}	3563	}
3106	}	3564	}
3107		3565
3108	#if EV_PERIODIC_ENABLE	3566	#if EV_PERIODIC_ENABLE
3109		3567
3110	static void noinline	3568	ecb_noinline
		3569	static void
3111	periodic_recalc (EV_P_ ev_periodic *w)	3570	periodic_recalc (EV_P_ ev_periodic *w)
3112	{	3571	{
3113	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3572	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3114	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);	3573	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3115		3574
…		…
3117	while (at <= ev_rt_now)	3576	while (at <= ev_rt_now)
3118	{	3577	{
3119	ev_tstamp nat = at + w->interval;	3578	ev_tstamp nat = at + w->interval;
3120		3579
3121	/* when resolution fails us, we use ev_rt_now */	3580	/* when resolution fails us, we use ev_rt_now */
3122	if (expect_false (nat == at))	3581	if (ecb_expect_false (nat == at))
3123	{	3582	{
3124	at = ev_rt_now;	3583	at = ev_rt_now;
3125	break;	3584	break;
3126	}	3585	}
3127		3586
…		…
3173	}	3632	}
3174	}	3633	}
3175		3634
3176	/* simply recalculate all periodics */	3635	/* simply recalculate all periodics */
3177	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3636	/* TODO: maybe ensure that at least one event happens when jumping forward? */
3178	static void noinline ecb_cold	3637	ecb_noinline ecb_cold
		3638	static void
3179	periodics_reschedule (EV_P)	3639	periodics_reschedule (EV_P)
3180	{	3640	{
3181	int i;	3641	int i;
3182		3642
3183	/* adjust periodics after time jump */	3643	/* adjust periodics after time jump */
…		…
3196	reheap (periodics, periodiccnt);	3656	reheap (periodics, periodiccnt);
3197	}	3657	}
3198	#endif	3658	#endif
3199		3659
3200	/* adjust all timers by a given offset */	3660	/* adjust all timers by a given offset */
3201	static void noinline ecb_cold	3661	ecb_noinline ecb_cold
		3662	static void
3202	timers_reschedule (EV_P_ ev_tstamp adjust)	3663	timers_reschedule (EV_P_ ev_tstamp adjust)
3203	{	3664	{
3204	int i;	3665	int i;
3205		3666
3206	for (i = 0; i < timercnt; ++i)	3667	for (i = 0; i < timercnt; ++i)
…		…
3215	/* also detect if there was a timejump, and act accordingly */	3676	/* also detect if there was a timejump, and act accordingly */
3216	inline_speed void	3677	inline_speed void
3217	time_update (EV_P_ ev_tstamp max_block)	3678	time_update (EV_P_ ev_tstamp max_block)
3218	{	3679	{
3219	#if EV_USE_MONOTONIC	3680	#if EV_USE_MONOTONIC
3220	if (expect_true (have_monotonic))	3681	if (ecb_expect_true (have_monotonic))
3221	{	3682	{
3222	int i;	3683	int i;
3223	ev_tstamp odiff = rtmn_diff;	3684	ev_tstamp odiff = rtmn_diff;
3224		3685
3225	mn_now = get_clock ();	3686	mn_now = get_clock ();
3226		3687
3227	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	3688	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3228	/* interpolate in the meantime */	3689	/* interpolate in the meantime */
3229	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	3690	if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3230	{	3691	{
3231	ev_rt_now = rtmn_diff + mn_now;	3692	ev_rt_now = rtmn_diff + mn_now;
3232	return;	3693	return;
3233	}	3694	}
3234		3695
…		…
3248	ev_tstamp diff;	3709	ev_tstamp diff;
3249	rtmn_diff = ev_rt_now - mn_now;	3710	rtmn_diff = ev_rt_now - mn_now;
3250		3711
3251	diff = odiff - rtmn_diff;	3712	diff = odiff - rtmn_diff;
3252		3713
3253	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))	3714	if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3254	return; /* all is well */	3715	return; /* all is well */
3255		3716
3256	ev_rt_now = ev_time ();	3717	ev_rt_now = ev_time ();
3257	mn_now = get_clock ();	3718	mn_now = get_clock ();
3258	now_floor = mn_now;	3719	now_floor = mn_now;
…		…
3267	else	3728	else
3268	#endif	3729	#endif
3269	{	3730	{
3270	ev_rt_now = ev_time ();	3731	ev_rt_now = ev_time ();
3271		3732
3272	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	3733	if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3273	{	3734	{
3274	/* adjust timers. this is easy, as the offset is the same for all of them */	3735	/* adjust timers. this is easy, as the offset is the same for all of them */
3275	timers_reschedule (EV_A_ ev_rt_now - mn_now);	3736	timers_reschedule (EV_A_ ev_rt_now - mn_now);
3276	#if EV_PERIODIC_ENABLE	3737	#if EV_PERIODIC_ENABLE
3277	periodics_reschedule (EV_A);	3738	periodics_reschedule (EV_A);
…		…
3300	#if EV_VERIFY >= 2	3761	#if EV_VERIFY >= 2
3301	ev_verify (EV_A);	3762	ev_verify (EV_A);
3302	#endif	3763	#endif
3303		3764
3304	#ifndef _WIN32	3765	#ifndef _WIN32
3305	if (expect_false (curpid)) /* penalise the forking check even more */	3766	if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3306	if (expect_false (getpid () != curpid))	3767	if (ecb_expect_false (getpid () != curpid))
3307	{	3768	{
3308	curpid = getpid ();	3769	curpid = getpid ();
3309	postfork = 1;	3770	postfork = 1;
3310	}	3771	}
3311	#endif	3772	#endif
3312		3773
3313	#if EV_FORK_ENABLE	3774	#if EV_FORK_ENABLE
3314	/* we might have forked, so queue fork handlers */	3775	/* we might have forked, so queue fork handlers */
3315	if (expect_false (postfork))	3776	if (ecb_expect_false (postfork))
3316	if (forkcnt)	3777	if (forkcnt)
3317	{	3778	{
3318	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	3779	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3319	EV_INVOKE_PENDING;	3780	EV_INVOKE_PENDING;
3320	}	3781	}
3321	#endif	3782	#endif
3322		3783
3323	#if EV_PREPARE_ENABLE	3784	#if EV_PREPARE_ENABLE
3324	/* queue prepare watchers (and execute them) */	3785	/* queue prepare watchers (and execute them) */
3325	if (expect_false (preparecnt))	3786	if (ecb_expect_false (preparecnt))
3326	{	3787	{
3327	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	3788	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3328	EV_INVOKE_PENDING;	3789	EV_INVOKE_PENDING;
3329	}	3790	}
3330	#endif	3791	#endif
3331		3792
3332	if (expect_false (loop_done))	3793	if (ecb_expect_false (loop_done))
3333	break;	3794	break;
3334		3795
3335	/* we might have forked, so reify kernel state if necessary */	3796	/* we might have forked, so reify kernel state if necessary */
3336	if (expect_false (postfork))	3797	if (ecb_expect_false (postfork))
3337	loop_fork (EV_A);	3798	loop_fork (EV_A);
3338		3799
3339	/* update fd-related kernel structures */	3800	/* update fd-related kernel structures */
3340	fd_reify (EV_A);	3801	fd_reify (EV_A);
3341		3802
…		…
3353	/* from now on, we want a pipe-wake-up */	3814	/* from now on, we want a pipe-wake-up */
3354	pipe_write_wanted = 1;	3815	pipe_write_wanted = 1;
3355		3816
3356	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */	3817	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3357		3818
3358	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3819	if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3359	{	3820	{
3360	waittime = MAX_BLOCKTIME;	3821	waittime = MAX_BLOCKTIME;
3361		3822
3362	if (timercnt)	3823	if (timercnt)
3363	{	3824	{
…		…
3372	if (waittime > to) waittime = to;	3833	if (waittime > to) waittime = to;
3373	}	3834	}
3374	#endif	3835	#endif
3375		3836
3376	/* don't let timeouts decrease the waittime below timeout_blocktime */	3837	/* don't let timeouts decrease the waittime below timeout_blocktime */
3377	if (expect_false (waittime < timeout_blocktime))	3838	if (ecb_expect_false (waittime < timeout_blocktime))
3378	waittime = timeout_blocktime;	3839	waittime = timeout_blocktime;
3379		3840
3380	/* at this point, we NEED to wait, so we have to ensure */	3841	/* at this point, we NEED to wait, so we have to ensure */
3381	/* to pass a minimum nonzero value to the backend */	3842	/* to pass a minimum nonzero value to the backend */
3382	if (expect_false (waittime < backend_mintime))	3843	if (ecb_expect_false (waittime < backend_mintime))
3383	waittime = backend_mintime;	3844	waittime = backend_mintime;
3384		3845
3385	/* extra check because io_blocktime is commonly 0 */	3846	/* extra check because io_blocktime is commonly 0 */
3386	if (expect_false (io_blocktime))	3847	if (ecb_expect_false (io_blocktime))
3387	{	3848	{
3388	sleeptime = io_blocktime - (mn_now - prev_mn_now);	3849	sleeptime = io_blocktime - (mn_now - prev_mn_now);
3389		3850
3390	if (sleeptime > waittime - backend_mintime)	3851	if (sleeptime > waittime - backend_mintime)
3391	sleeptime = waittime - backend_mintime;	3852	sleeptime = waittime - backend_mintime;
3392		3853
3393	if (expect_true (sleeptime > 0.))	3854	if (ecb_expect_true (sleeptime > 0.))
3394	{	3855	{
3395	ev_sleep (sleeptime);	3856	ev_sleep (sleeptime);
3396	waittime -= sleeptime;	3857	waittime -= sleeptime;
3397	}	3858	}
3398	}	3859	}
…		…
3412	{	3873	{
3413	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3874	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3414	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3875	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3415	}	3876	}
3416		3877
3417
3418	/* update ev_rt_now, do magic */	3878	/* update ev_rt_now, do magic */
3419	time_update (EV_A_ waittime + sleeptime);	3879	time_update (EV_A_ waittime + sleeptime);
3420	}	3880	}
3421		3881
3422	/* queue pending timers and reschedule them */	3882	/* queue pending timers and reschedule them */
…		…
3430	idle_reify (EV_A);	3890	idle_reify (EV_A);
3431	#endif	3891	#endif
3432		3892
3433	#if EV_CHECK_ENABLE	3893	#if EV_CHECK_ENABLE
3434	/* queue check watchers, to be executed first */	3894	/* queue check watchers, to be executed first */
3435	if (expect_false (checkcnt))	3895	if (ecb_expect_false (checkcnt))
3436	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	3896	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3437	#endif	3897	#endif
3438		3898
3439	EV_INVOKE_PENDING;	3899	EV_INVOKE_PENDING;
3440	}	3900	}
3441	while (expect_true (	3901	while (ecb_expect_true (
3442	activecnt	3902	activecnt
3443	&& !loop_done	3903	&& !loop_done
3444	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))	3904	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3445	));	3905	));
3446		3906
…		…
3453		3913
3454	return activecnt;	3914	return activecnt;
3455	}	3915	}
3456		3916
3457	void	3917	void
3458	ev_break (EV_P_ int how) EV_THROW	3918	ev_break (EV_P_ int how) EV_NOEXCEPT
3459	{	3919	{
3460	loop_done = how;	3920	loop_done = how;
3461	}	3921	}
3462		3922
3463	void	3923	void
3464	ev_ref (EV_P) EV_THROW	3924	ev_ref (EV_P) EV_NOEXCEPT
3465	{	3925	{
3466	++activecnt;	3926	++activecnt;
3467	}	3927	}
3468		3928
3469	void	3929	void
3470	ev_unref (EV_P) EV_THROW	3930	ev_unref (EV_P) EV_NOEXCEPT
3471	{	3931	{
3472	--activecnt;	3932	--activecnt;
3473	}	3933	}
3474		3934
3475	void	3935	void
3476	ev_now_update (EV_P) EV_THROW	3936	ev_now_update (EV_P) EV_NOEXCEPT
3477	{	3937	{
3478	time_update (EV_A_ 1e100);	3938	time_update (EV_A_ 1e100);
3479	}	3939	}
3480		3940
3481	void	3941	void
3482	ev_suspend (EV_P) EV_THROW	3942	ev_suspend (EV_P) EV_NOEXCEPT
3483	{	3943	{
3484	ev_now_update (EV_A);	3944	ev_now_update (EV_A);
3485	}	3945	}
3486		3946
3487	void	3947	void
3488	ev_resume (EV_P) EV_THROW	3948	ev_resume (EV_P) EV_NOEXCEPT
3489	{	3949	{
3490	ev_tstamp mn_prev = mn_now;	3950	ev_tstamp mn_prev = mn_now;
3491		3951
3492	ev_now_update (EV_A);	3952	ev_now_update (EV_A);
3493	timers_reschedule (EV_A_ mn_now - mn_prev);	3953	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3510	inline_size void	3970	inline_size void
3511	wlist_del (WL *head, WL elem)	3971	wlist_del (WL *head, WL elem)
3512	{	3972	{
3513	while (*head)	3973	while (*head)
3514	{	3974	{
3515	if (expect_true (*head == elem))	3975	if (ecb_expect_true (*head == elem))
3516	{	3976	{
3517	*head = elem->next;	3977	*head = elem->next;
3518	break;	3978	break;
3519	}	3979	}
3520		3980
…		…
3532	w->pending = 0;	3992	w->pending = 0;
3533	}	3993	}
3534	}	3994	}
3535		3995
3536	int	3996	int
3537	ev_clear_pending (EV_P_ void *w) EV_THROW	3997	ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3538	{	3998	{
3539	W w_ = (W)w;	3999	W w_ = (W)w;
3540	int pending = w_->pending;	4000	int pending = w_->pending;
3541		4001
3542	if (expect_true (pending))	4002	if (ecb_expect_true (pending))
3543	{	4003	{
3544	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	4004	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3545	p->w = (W)&pending_w;	4005	p->w = (W)&pending_w;
3546	w_->pending = 0;	4006	w_->pending = 0;
3547	return p->events;	4007	return p->events;
…		…
3574	w->active = 0;	4034	w->active = 0;
3575	}	4035	}
3576		4036
3577	/*****************************************************************************/	4037	/*****************************************************************************/
3578		4038
3579	void noinline	4039	ecb_noinline
		4040	void
3580	ev_io_start (EV_P_ ev_io *w) EV_THROW	4041	ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3581	{	4042	{
3582	int fd = w->fd;	4043	int fd = w->fd;
3583		4044
3584	if (expect_false (ev_is_active (w)))	4045	if (ecb_expect_false (ev_is_active (w)))
3585	return;	4046	return;
3586		4047
3587	assert (("libev: ev_io_start called with negative fd", fd >= 0));	4048	assert (("libev: ev_io_start called with negative fd", fd >= 0));
3588	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	4049	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3589		4050
		4051	#if EV_VERIFY >= 2
		4052	assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
		4053	#endif
3590	EV_FREQUENT_CHECK;	4054	EV_FREQUENT_CHECK;
3591		4055
3592	ev_start (EV_A_ (W)w, 1);	4056	ev_start (EV_A_ (W)w, 1);
3593	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	4057	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3594	wlist_add (&anfds[fd].head, (WL)w);	4058	wlist_add (&anfds[fd].head, (WL)w);
3595		4059
3596	/* common bug, apparently */	4060	/* common bug, apparently */
3597	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));	4061	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3598		4062
…		…
3600	w->events &= ~EV__IOFDSET;	4064	w->events &= ~EV__IOFDSET;
3601		4065
3602	EV_FREQUENT_CHECK;	4066	EV_FREQUENT_CHECK;
3603	}	4067	}
3604		4068
3605	void noinline	4069	ecb_noinline
		4070	void
3606	ev_io_stop (EV_P_ ev_io *w) EV_THROW	4071	ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3607	{	4072	{
3608	clear_pending (EV_A_ (W)w);	4073	clear_pending (EV_A_ (W)w);
3609	if (expect_false (!ev_is_active (w)))	4074	if (ecb_expect_false (!ev_is_active (w)))
3610	return;	4075	return;
3611		4076
3612	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	4077	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3613		4078
		4079	#if EV_VERIFY >= 2
		4080	assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
		4081	#endif
3614	EV_FREQUENT_CHECK;	4082	EV_FREQUENT_CHECK;
3615		4083
3616	wlist_del (&anfds[w->fd].head, (WL)w);	4084	wlist_del (&anfds[w->fd].head, (WL)w);
3617	ev_stop (EV_A_ (W)w);	4085	ev_stop (EV_A_ (W)w);
3618		4086
3619	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	4087	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620		4088
3621	EV_FREQUENT_CHECK;	4089	EV_FREQUENT_CHECK;
3622	}	4090	}
3623		4091
3624	void noinline	4092	ecb_noinline
		4093	void
3625	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	4094	ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3626	{	4095	{
3627	if (expect_false (ev_is_active (w)))	4096	if (ecb_expect_false (ev_is_active (w)))
3628	return;	4097	return;
3629		4098
3630	ev_at (w) += mn_now;	4099	ev_at (w) += mn_now;
3631		4100
3632	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	4101	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3633		4102
3634	EV_FREQUENT_CHECK;	4103	EV_FREQUENT_CHECK;
3635		4104
3636	++timercnt;	4105	++timercnt;
3637	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	4106	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3638	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	4107	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3639	ANHE_w (timers [ev_active (w)]) = (WT)w;	4108	ANHE_w (timers [ev_active (w)]) = (WT)w;
3640	ANHE_at_cache (timers [ev_active (w)]);	4109	ANHE_at_cache (timers [ev_active (w)]);
3641	upheap (timers, ev_active (w));	4110	upheap (timers, ev_active (w));
3642		4111
3643	EV_FREQUENT_CHECK;	4112	EV_FREQUENT_CHECK;
3644		4113
3645	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	4114	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3646	}	4115	}
3647		4116
3648	void noinline	4117	ecb_noinline
		4118	void
3649	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	4119	ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3650	{	4120	{
3651	clear_pending (EV_A_ (W)w);	4121	clear_pending (EV_A_ (W)w);
3652	if (expect_false (!ev_is_active (w)))	4122	if (ecb_expect_false (!ev_is_active (w)))
3653	return;	4123	return;
3654		4124
3655	EV_FREQUENT_CHECK;	4125	EV_FREQUENT_CHECK;
3656		4126
3657	{	4127	{
…		…
3659		4129
3660	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	4130	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3661		4131
3662	--timercnt;	4132	--timercnt;
3663		4133
3664	if (expect_true (active < timercnt + HEAP0))	4134	if (ecb_expect_true (active < timercnt + HEAP0))
3665	{	4135	{
3666	timers [active] = timers [timercnt + HEAP0];	4136	timers [active] = timers [timercnt + HEAP0];
3667	adjustheap (timers, timercnt, active);	4137	adjustheap (timers, timercnt, active);
3668	}	4138	}
3669	}	4139	}
…		…
3673	ev_stop (EV_A_ (W)w);	4143	ev_stop (EV_A_ (W)w);
3674		4144
3675	EV_FREQUENT_CHECK;	4145	EV_FREQUENT_CHECK;
3676	}	4146	}
3677		4147
3678	void noinline	4148	ecb_noinline
		4149	void
3679	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	4150	ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3680	{	4151	{
3681	EV_FREQUENT_CHECK;	4152	EV_FREQUENT_CHECK;
3682		4153
3683	clear_pending (EV_A_ (W)w);	4154	clear_pending (EV_A_ (W)w);
3684		4155
…		…
3701		4172
3702	EV_FREQUENT_CHECK;	4173	EV_FREQUENT_CHECK;
3703	}	4174	}
3704		4175
3705	ev_tstamp	4176	ev_tstamp
3706	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW	4177	ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3707	{	4178	{
3708	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	4179	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3709	}	4180	}
3710		4181
3711	#if EV_PERIODIC_ENABLE	4182	#if EV_PERIODIC_ENABLE
3712	void noinline	4183	ecb_noinline
		4184	void
3713	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	4185	ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3714	{	4186	{
3715	if (expect_false (ev_is_active (w)))	4187	if (ecb_expect_false (ev_is_active (w)))
3716	return;	4188	return;
3717		4189
3718	if (w->reschedule_cb)	4190	if (w->reschedule_cb)
3719	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	4191	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3720	else if (w->interval)	4192	else if (w->interval)
…		…
3727		4199
3728	EV_FREQUENT_CHECK;	4200	EV_FREQUENT_CHECK;
3729		4201
3730	++periodiccnt;	4202	++periodiccnt;
3731	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);	4203	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3732	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	4204	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3733	ANHE_w (periodics [ev_active (w)]) = (WT)w;	4205	ANHE_w (periodics [ev_active (w)]) = (WT)w;
3734	ANHE_at_cache (periodics [ev_active (w)]);	4206	ANHE_at_cache (periodics [ev_active (w)]);
3735	upheap (periodics, ev_active (w));	4207	upheap (periodics, ev_active (w));
3736		4208
3737	EV_FREQUENT_CHECK;	4209	EV_FREQUENT_CHECK;
3738		4210
3739	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	4211	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3740	}	4212	}
3741		4213
3742	void noinline	4214	ecb_noinline
		4215	void
3743	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4216	ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3744	{	4217	{
3745	clear_pending (EV_A_ (W)w);	4218	clear_pending (EV_A_ (W)w);
3746	if (expect_false (!ev_is_active (w)))	4219	if (ecb_expect_false (!ev_is_active (w)))
3747	return;	4220	return;
3748		4221
3749	EV_FREQUENT_CHECK;	4222	EV_FREQUENT_CHECK;
3750		4223
3751	{	4224	{
…		…
3753		4226
3754	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	4227	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3755		4228
3756	--periodiccnt;	4229	--periodiccnt;
3757		4230
3758	if (expect_true (active < periodiccnt + HEAP0))	4231	if (ecb_expect_true (active < periodiccnt + HEAP0))
3759	{	4232	{
3760	periodics [active] = periodics [periodiccnt + HEAP0];	4233	periodics [active] = periodics [periodiccnt + HEAP0];
3761	adjustheap (periodics, periodiccnt, active);	4234	adjustheap (periodics, periodiccnt, active);
3762	}	4235	}
3763	}	4236	}
…		…
3765	ev_stop (EV_A_ (W)w);	4238	ev_stop (EV_A_ (W)w);
3766		4239
3767	EV_FREQUENT_CHECK;	4240	EV_FREQUENT_CHECK;
3768	}	4241	}
3769		4242
3770	void noinline	4243	ecb_noinline
		4244	void
3771	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4245	ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3772	{	4246	{
3773	/* TODO: use adjustheap and recalculation */	4247	/* TODO: use adjustheap and recalculation */
3774	ev_periodic_stop (EV_A_ w);	4248	ev_periodic_stop (EV_A_ w);
3775	ev_periodic_start (EV_A_ w);	4249	ev_periodic_start (EV_A_ w);
3776	}	4250	}
…		…
3780	# define SA_RESTART 0	4254	# define SA_RESTART 0
3781	#endif	4255	#endif
3782		4256
3783	#if EV_SIGNAL_ENABLE	4257	#if EV_SIGNAL_ENABLE
3784		4258
3785	void noinline	4259	ecb_noinline
		4260	void
3786	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4261	ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3787	{	4262	{
3788	if (expect_false (ev_is_active (w)))	4263	if (ecb_expect_false (ev_is_active (w)))
3789	return;	4264	return;
3790		4265
3791	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	4266	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3792		4267
3793	#if EV_MULTIPLICITY	4268	#if EV_MULTIPLICITY
…		…
3862	}	4337	}
3863		4338
3864	EV_FREQUENT_CHECK;	4339	EV_FREQUENT_CHECK;
3865	}	4340	}
3866		4341
3867	void noinline	4342	ecb_noinline
		4343	void
3868	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4344	ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3869	{	4345	{
3870	clear_pending (EV_A_ (W)w);	4346	clear_pending (EV_A_ (W)w);
3871	if (expect_false (!ev_is_active (w)))	4347	if (ecb_expect_false (!ev_is_active (w)))
3872	return;	4348	return;
3873		4349
3874	EV_FREQUENT_CHECK;	4350	EV_FREQUENT_CHECK;
3875		4351
3876	wlist_del (&signals [w->signum - 1].head, (WL)w);	4352	wlist_del (&signals [w->signum - 1].head, (WL)w);
…		…
3904	#endif	4380	#endif
3905		4381
3906	#if EV_CHILD_ENABLE	4382	#if EV_CHILD_ENABLE
3907		4383
3908	void	4384	void
3909	ev_child_start (EV_P_ ev_child *w) EV_THROW	4385	ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3910	{	4386	{
3911	#if EV_MULTIPLICITY	4387	#if EV_MULTIPLICITY
3912	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	4388	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3913	#endif	4389	#endif
3914	if (expect_false (ev_is_active (w)))	4390	if (ecb_expect_false (ev_is_active (w)))
3915	return;	4391	return;
3916		4392
3917	EV_FREQUENT_CHECK;	4393	EV_FREQUENT_CHECK;
3918		4394
3919	ev_start (EV_A_ (W)w, 1);	4395	ev_start (EV_A_ (W)w, 1);
…		…
3921		4397
3922	EV_FREQUENT_CHECK;	4398	EV_FREQUENT_CHECK;
3923	}	4399	}
3924		4400
3925	void	4401	void
3926	ev_child_stop (EV_P_ ev_child *w) EV_THROW	4402	ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3927	{	4403	{
3928	clear_pending (EV_A_ (W)w);	4404	clear_pending (EV_A_ (W)w);
3929	if (expect_false (!ev_is_active (w)))	4405	if (ecb_expect_false (!ev_is_active (w)))
3930	return;	4406	return;
3931		4407
3932	EV_FREQUENT_CHECK;	4408	EV_FREQUENT_CHECK;
3933		4409
3934	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);	4410	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
…		…
3948		4424
3949	#define DEF_STAT_INTERVAL 5.0074891	4425	#define DEF_STAT_INTERVAL 5.0074891
3950	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4426	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951	#define MIN_STAT_INTERVAL 0.1074891	4427	#define MIN_STAT_INTERVAL 0.1074891
3952		4428
3953	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4429	ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954		4430
3955	#if EV_USE_INOTIFY	4431	#if EV_USE_INOTIFY
3956		4432
3957	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */	4433	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3958	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4434	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959		4435
3960	static void noinline	4436	ecb_noinline
		4437	static void
3961	infy_add (EV_P_ ev_stat *w)	4438	infy_add (EV_P_ ev_stat *w)
3962	{	4439	{
3963	w->wd = inotify_add_watch (fs_fd, w->path,	4440	w->wd = inotify_add_watch (fs_fd, w->path,
3964	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4441	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO	4442	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
…		…
4029	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4506	if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030	ev_timer_again (EV_A_ &w->timer);	4507	ev_timer_again (EV_A_ &w->timer);
4031	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4508	if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032	}	4509	}
4033		4510
4034	static void noinline	4511	ecb_noinline
		4512	static void
4035	infy_del (EV_P_ ev_stat *w)	4513	infy_del (EV_P_ ev_stat *w)
4036	{	4514	{
4037	int slot;	4515	int slot;
4038	int wd = w->wd;	4516	int wd = w->wd;
4039		4517
…		…
4046		4524
4047	/* remove this watcher, if others are watching it, they will rearm */	4525	/* remove this watcher, if others are watching it, they will rearm */
4048	inotify_rm_watch (fs_fd, wd);	4526	inotify_rm_watch (fs_fd, wd);
4049	}	4527	}
4050		4528
4051	static void noinline	4529	ecb_noinline
		4530	static void
4052	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4531	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053	{	4532	{
4054	if (slot < 0)	4533	if (slot < 0)
4055	/* overflow, need to check for all hash slots */	4534	/* overflow, need to check for all hash slots */
4056	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4535	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
4092	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4571	infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093	ofs += sizeof (struct inotify_event) + ev->len;	4572	ofs += sizeof (struct inotify_event) + ev->len;
4094	}	4573	}
4095	}	4574	}
4096		4575
4097	inline_size void ecb_cold	4576	inline_size ecb_cold
		4577	void
4098	ev_check_2625 (EV_P)	4578	ev_check_2625 (EV_P)
4099	{	4579	{
4100	/* kernels < 2.6.25 are borked	4580	/* kernels < 2.6.25 are borked
4101	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4581	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4102	*/	4582	*/
…		…
4192	#else	4672	#else
4193	# define EV_LSTAT(p,b) lstat (p, b)	4673	# define EV_LSTAT(p,b) lstat (p, b)
4194	#endif	4674	#endif
4195		4675
4196	void	4676	void
4197	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW	4677	ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4198	{	4678	{
4199	if (lstat (w->path, &w->attr) < 0)	4679	if (lstat (w->path, &w->attr) < 0)
4200	w->attr.st_nlink = 0;	4680	w->attr.st_nlink = 0;
4201	else if (!w->attr.st_nlink)	4681	else if (!w->attr.st_nlink)
4202	w->attr.st_nlink = 1;	4682	w->attr.st_nlink = 1;
4203	}	4683	}
4204		4684
4205	static void noinline	4685	ecb_noinline
		4686	static void
4206	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4687	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207	{	4688	{
4208	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4689	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209		4690
4210	ev_statdata prev = w->attr;	4691	ev_statdata prev = w->attr;
…		…
4241	ev_feed_event (EV_A_ w, EV_STAT);	4722	ev_feed_event (EV_A_ w, EV_STAT);
4242	}	4723	}
4243	}	4724	}
4244		4725
4245	void	4726	void
4246	ev_stat_start (EV_P_ ev_stat *w) EV_THROW	4727	ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4247	{	4728	{
4248	if (expect_false (ev_is_active (w)))	4729	if (ecb_expect_false (ev_is_active (w)))
4249	return;	4730	return;
4250		4731
4251	ev_stat_stat (EV_A_ w);	4732	ev_stat_stat (EV_A_ w);
4252		4733
4253	if (w->interval < MIN_STAT_INTERVAL && w->interval)	4734	if (w->interval < MIN_STAT_INTERVAL && w->interval)
…		…
4272		4753
4273	EV_FREQUENT_CHECK;	4754	EV_FREQUENT_CHECK;
4274	}	4755	}
4275		4756
4276	void	4757	void
4277	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW	4758	ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4278	{	4759	{
4279	clear_pending (EV_A_ (W)w);	4760	clear_pending (EV_A_ (W)w);
4280	if (expect_false (!ev_is_active (w)))	4761	if (ecb_expect_false (!ev_is_active (w)))
4281	return;	4762	return;
4282		4763
4283	EV_FREQUENT_CHECK;	4764	EV_FREQUENT_CHECK;
4284		4765
4285	#if EV_USE_INOTIFY	4766	#if EV_USE_INOTIFY
…		…
4298	}	4779	}
4299	#endif	4780	#endif
4300		4781
4301	#if EV_IDLE_ENABLE	4782	#if EV_IDLE_ENABLE
4302	void	4783	void
4303	ev_idle_start (EV_P_ ev_idle *w) EV_THROW	4784	ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4304	{	4785	{
4305	if (expect_false (ev_is_active (w)))	4786	if (ecb_expect_false (ev_is_active (w)))
4306	return;	4787	return;
4307		4788
4308	pri_adjust (EV_A_ (W)w);	4789	pri_adjust (EV_A_ (W)w);
4309		4790
4310	EV_FREQUENT_CHECK;	4791	EV_FREQUENT_CHECK;
…		…
4313	int active = ++idlecnt [ABSPRI (w)];	4794	int active = ++idlecnt [ABSPRI (w)];
4314		4795
4315	++idleall;	4796	++idleall;
4316	ev_start (EV_A_ (W)w, active);	4797	ev_start (EV_A_ (W)w, active);
4317		4798
4318	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	4799	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4319	idles [ABSPRI (w)][active - 1] = w;	4800	idles [ABSPRI (w)][active - 1] = w;
4320	}	4801	}
4321		4802
4322	EV_FREQUENT_CHECK;	4803	EV_FREQUENT_CHECK;
4323	}	4804	}
4324		4805
4325	void	4806	void
4326	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW	4807	ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4327	{	4808	{
4328	clear_pending (EV_A_ (W)w);	4809	clear_pending (EV_A_ (W)w);
4329	if (expect_false (!ev_is_active (w)))	4810	if (ecb_expect_false (!ev_is_active (w)))
4330	return;	4811	return;
4331		4812
4332	EV_FREQUENT_CHECK;	4813	EV_FREQUENT_CHECK;
4333		4814
4334	{	4815	{
…		…
4345	}	4826	}
4346	#endif	4827	#endif
4347		4828
4348	#if EV_PREPARE_ENABLE	4829	#if EV_PREPARE_ENABLE
4349	void	4830	void
4350	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW	4831	ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4351	{	4832	{
4352	if (expect_false (ev_is_active (w)))	4833	if (ecb_expect_false (ev_is_active (w)))
4353	return;	4834	return;
4354		4835
4355	EV_FREQUENT_CHECK;	4836	EV_FREQUENT_CHECK;
4356		4837
4357	ev_start (EV_A_ (W)w, ++preparecnt);	4838	ev_start (EV_A_ (W)w, ++preparecnt);
4358	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	4839	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4359	prepares [preparecnt - 1] = w;	4840	prepares [preparecnt - 1] = w;
4360		4841
4361	EV_FREQUENT_CHECK;	4842	EV_FREQUENT_CHECK;
4362	}	4843	}
4363		4844
4364	void	4845	void
4365	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW	4846	ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4366	{	4847	{
4367	clear_pending (EV_A_ (W)w);	4848	clear_pending (EV_A_ (W)w);
4368	if (expect_false (!ev_is_active (w)))	4849	if (ecb_expect_false (!ev_is_active (w)))
4369	return;	4850	return;
4370		4851
4371	EV_FREQUENT_CHECK;	4852	EV_FREQUENT_CHECK;
4372		4853
4373	{	4854	{
…		…
4383	}	4864	}
4384	#endif	4865	#endif
4385		4866
4386	#if EV_CHECK_ENABLE	4867	#if EV_CHECK_ENABLE
4387	void	4868	void
4388	ev_check_start (EV_P_ ev_check *w) EV_THROW	4869	ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4389	{	4870	{
4390	if (expect_false (ev_is_active (w)))	4871	if (ecb_expect_false (ev_is_active (w)))
4391	return;	4872	return;
4392		4873
4393	EV_FREQUENT_CHECK;	4874	EV_FREQUENT_CHECK;
4394		4875
4395	ev_start (EV_A_ (W)w, ++checkcnt);	4876	ev_start (EV_A_ (W)w, ++checkcnt);
4396	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	4877	array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4397	checks [checkcnt - 1] = w;	4878	checks [checkcnt - 1] = w;
4398		4879
4399	EV_FREQUENT_CHECK;	4880	EV_FREQUENT_CHECK;
4400	}	4881	}
4401		4882
4402	void	4883	void
4403	ev_check_stop (EV_P_ ev_check *w) EV_THROW	4884	ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4404	{	4885	{
4405	clear_pending (EV_A_ (W)w);	4886	clear_pending (EV_A_ (W)w);
4406	if (expect_false (!ev_is_active (w)))	4887	if (ecb_expect_false (!ev_is_active (w)))
4407	return;	4888	return;
4408		4889
4409	EV_FREQUENT_CHECK;	4890	EV_FREQUENT_CHECK;
4410		4891
4411	{	4892	{
…		…
4420	EV_FREQUENT_CHECK;	4901	EV_FREQUENT_CHECK;
4421	}	4902	}
4422	#endif	4903	#endif
4423		4904
4424	#if EV_EMBED_ENABLE	4905	#if EV_EMBED_ENABLE
4425	void noinline	4906	ecb_noinline
		4907	void
4426	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	4908	ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4427	{	4909	{
4428	ev_run (w->other, EVRUN_NOWAIT);	4910	ev_run (w->other, EVRUN_NOWAIT);
4429	}	4911	}
4430		4912
4431	static void	4913	static void
…		…
4479	ev_idle_stop (EV_A_ idle);	4961	ev_idle_stop (EV_A_ idle);
4480	}	4962	}
4481	#endif	4963	#endif
4482		4964
4483	void	4965	void
4484	ev_embed_start (EV_P_ ev_embed *w) EV_THROW	4966	ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4485	{	4967	{
4486	if (expect_false (ev_is_active (w)))	4968	if (ecb_expect_false (ev_is_active (w)))
4487	return;	4969	return;
4488		4970
4489	{	4971	{
4490	EV_P = w->other;	4972	EV_P = w->other;
4491	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	4973	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
…		…
4510		4992
4511	EV_FREQUENT_CHECK;	4993	EV_FREQUENT_CHECK;
4512	}	4994	}
4513		4995
4514	void	4996	void
4515	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW	4997	ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4516	{	4998	{
4517	clear_pending (EV_A_ (W)w);	4999	clear_pending (EV_A_ (W)w);
4518	if (expect_false (!ev_is_active (w)))	5000	if (ecb_expect_false (!ev_is_active (w)))
4519	return;	5001	return;
4520		5002
4521	EV_FREQUENT_CHECK;	5003	EV_FREQUENT_CHECK;
4522		5004
4523	ev_io_stop (EV_A_ &w->io);	5005	ev_io_stop (EV_A_ &w->io);
…		…
4530	}	5012	}
4531	#endif	5013	#endif
4532		5014
4533	#if EV_FORK_ENABLE	5015	#if EV_FORK_ENABLE
4534	void	5016	void
4535	ev_fork_start (EV_P_ ev_fork *w) EV_THROW	5017	ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4536	{	5018	{
4537	if (expect_false (ev_is_active (w)))	5019	if (ecb_expect_false (ev_is_active (w)))
4538	return;	5020	return;
4539		5021
4540	EV_FREQUENT_CHECK;	5022	EV_FREQUENT_CHECK;
4541		5023
4542	ev_start (EV_A_ (W)w, ++forkcnt);	5024	ev_start (EV_A_ (W)w, ++forkcnt);
4543	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	5025	array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4544	forks [forkcnt - 1] = w;	5026	forks [forkcnt - 1] = w;
4545		5027
4546	EV_FREQUENT_CHECK;	5028	EV_FREQUENT_CHECK;
4547	}	5029	}
4548		5030
4549	void	5031	void
4550	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW	5032	ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4551	{	5033	{
4552	clear_pending (EV_A_ (W)w);	5034	clear_pending (EV_A_ (W)w);
4553	if (expect_false (!ev_is_active (w)))	5035	if (ecb_expect_false (!ev_is_active (w)))
4554	return;	5036	return;
4555		5037
4556	EV_FREQUENT_CHECK;	5038	EV_FREQUENT_CHECK;
4557		5039
4558	{	5040	{
…		…
4568	}	5050	}
4569	#endif	5051	#endif
4570		5052
4571	#if EV_CLEANUP_ENABLE	5053	#if EV_CLEANUP_ENABLE
4572	void	5054	void
4573	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW	5055	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4574	{	5056	{
4575	if (expect_false (ev_is_active (w)))	5057	if (ecb_expect_false (ev_is_active (w)))
4576	return;	5058	return;
4577		5059
4578	EV_FREQUENT_CHECK;	5060	EV_FREQUENT_CHECK;
4579		5061
4580	ev_start (EV_A_ (W)w, ++cleanupcnt);	5062	ev_start (EV_A_ (W)w, ++cleanupcnt);
4581	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);	5063	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4582	cleanups [cleanupcnt - 1] = w;	5064	cleanups [cleanupcnt - 1] = w;
4583		5065
4584	/* cleanup watchers should never keep a refcount on the loop */	5066	/* cleanup watchers should never keep a refcount on the loop */
4585	ev_unref (EV_A);	5067	ev_unref (EV_A);
4586	EV_FREQUENT_CHECK;	5068	EV_FREQUENT_CHECK;
4587	}	5069	}
4588		5070
4589	void	5071	void
4590	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW	5072	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4591	{	5073	{
4592	clear_pending (EV_A_ (W)w);	5074	clear_pending (EV_A_ (W)w);
4593	if (expect_false (!ev_is_active (w)))	5075	if (ecb_expect_false (!ev_is_active (w)))
4594	return;	5076	return;
4595		5077
4596	EV_FREQUENT_CHECK;	5078	EV_FREQUENT_CHECK;
4597	ev_ref (EV_A);	5079	ev_ref (EV_A);
4598		5080
…		…
4609	}	5091	}
4610	#endif	5092	#endif
4611		5093
4612	#if EV_ASYNC_ENABLE	5094	#if EV_ASYNC_ENABLE
4613	void	5095	void
4614	ev_async_start (EV_P_ ev_async *w) EV_THROW	5096	ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4615	{	5097	{
4616	if (expect_false (ev_is_active (w)))	5098	if (ecb_expect_false (ev_is_active (w)))
4617	return;	5099	return;
4618		5100
4619	w->sent = 0;	5101	w->sent = 0;
4620		5102
4621	evpipe_init (EV_A);	5103	evpipe_init (EV_A);
4622		5104
4623	EV_FREQUENT_CHECK;	5105	EV_FREQUENT_CHECK;
4624		5106
4625	ev_start (EV_A_ (W)w, ++asynccnt);	5107	ev_start (EV_A_ (W)w, ++asynccnt);
4626	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	5108	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4627	asyncs [asynccnt - 1] = w;	5109	asyncs [asynccnt - 1] = w;
4628		5110
4629	EV_FREQUENT_CHECK;	5111	EV_FREQUENT_CHECK;
4630	}	5112	}
4631		5113
4632	void	5114	void
4633	ev_async_stop (EV_P_ ev_async *w) EV_THROW	5115	ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4634	{	5116	{
4635	clear_pending (EV_A_ (W)w);	5117	clear_pending (EV_A_ (W)w);
4636	if (expect_false (!ev_is_active (w)))	5118	if (ecb_expect_false (!ev_is_active (w)))
4637	return;	5119	return;
4638		5120
4639	EV_FREQUENT_CHECK;	5121	EV_FREQUENT_CHECK;
4640		5122
4641	{	5123	{
…		…
4649		5131
4650	EV_FREQUENT_CHECK;	5132	EV_FREQUENT_CHECK;
4651	}	5133	}
4652		5134
4653	void	5135	void
4654	ev_async_send (EV_P_ ev_async *w) EV_THROW	5136	ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4655	{	5137	{
4656	w->sent = 1;	5138	w->sent = 1;
4657	evpipe_write (EV_A_ &async_pending);	5139	evpipe_write (EV_A_ &async_pending);
4658	}	5140	}
4659	#endif	5141	#endif
…		…
4696		5178
4697	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	5179	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4698	}	5180	}
4699		5181
4700	void	5182	void
4701	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW	5183	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4702	{	5184	{
4703	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	5185	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4704
4705	if (expect_false (!once))
4706	{
4707	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4708	return;
4709	}
4710		5186
4711	once->cb = cb;	5187	once->cb = cb;
4712	once->arg = arg;	5188	once->arg = arg;
4713		5189
4714	ev_init (&once->io, once_cb_io);	5190	ev_init (&once->io, once_cb_io);
…		…
4727	}	5203	}
4728		5204
4729	/*****************************************************************************/	5205	/*****************************************************************************/
4730		5206
4731	#if EV_WALK_ENABLE	5207	#if EV_WALK_ENABLE
4732	void ecb_cold	5208	ecb_cold
		5209	void
4733	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW	5210	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4734	{	5211	{
4735	int i, j;	5212	int i, j;
4736	ev_watcher_list *wl, *wn;	5213	ev_watcher_list *wl, *wn;
4737		5214
4738	if (types & (EV_IO | EV_EMBED))	5215	if (types & (EV_IO | EV_EMBED))

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