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Comparing libev/ev.c (file contents):
Revision 1.468 by root, Fri Sep 5 16:00:17 2014 UTC vs.
Revision 1.506 by root, Thu Jul 11 05:41:39 2019 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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_MS(a) a * 1e3 + 0.9999
		550	#define EV_TS_FROM_US(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 (©) 2009-2014 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:
…		…
523		597
524	#ifndef ECB_H	598	#ifndef ECB_H
525	#define ECB_H	599	#define ECB_H
526		600
527	/* 16 bits major, 16 bits minor */	601	/* 16 bits major, 16 bits minor */
528	#define ECB_VERSION 0x00010003	602	#define ECB_VERSION 0x00010006
529		603
530	#ifdef _WIN32	604	#ifdef _WIN32
531	typedef signed char int8_t;	605	typedef signed char int8_t;
532	typedef unsigned char uint8_t;	606	typedef unsigned char uint8_t;
533	typedef signed short int16_t;	607	typedef signed short int16_t;
…		…
550	typedef uint32_t uintptr_t;	624	typedef uint32_t uintptr_t;
551	typedef int32_t intptr_t;	625	typedef int32_t intptr_t;
552	#endif	626	#endif
553	#else	627	#else
554	#include <inttypes.h>	628	#include <inttypes.h>
555	#if UINTMAX_MAX > 0xffffffffU	629	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
556	#define ECB_PTRSIZE 8	630	#define ECB_PTRSIZE 8
557	#else	631	#else
558	#define ECB_PTRSIZE 4	632	#define ECB_PTRSIZE 4
559	#endif	633	#endif
560	#endif	634	#endif
561		635
		636	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
		637	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
		638
562	/* work around x32 idiocy by defining proper macros */	639	/* work around x32 idiocy by defining proper macros */
563	#if __amd64 || __x86_64 || _M_AMD64 || _M_X64	640	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
564	#if _ILP32	641	#if _ILP32
565	#define ECB_AMD64_X32 1	642	#define ECB_AMD64_X32 1
566	#else	643	#else
567	#define ECB_AMD64 1	644	#define ECB_AMD64 1
568	#endif	645	#endif
…		…
573	* causing enormous grief in return for some better fake benchmark numbers.	650	* causing enormous grief in return for some better fake benchmark numbers.
574	* or so.	651	* or so.
575	* 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
576	* 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.
577	*/	654	*/
578	#ifndef ECB_GCC_VERSION
579	#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__
580	#define ECB_GCC_VERSION(major,minor) 0	656	#define ECB_GCC_VERSION(major,minor) 0
581	#else	657	#else
582	#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)))
583	#endif	659	#endif
		660
		661	#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
		662
		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
584	#endif	673	#endif
585		674
586	#define ECB_CPP (__cplusplus+0)	675	#define ECB_CPP (__cplusplus+0)
587	#define ECB_CPP11 (__cplusplus >= 201103L)	676	#define ECB_CPP11 (__cplusplus >= 201103L)
		677	#define ECB_CPP14 (__cplusplus >= 201402L)
		678	#define ECB_CPP17 (__cplusplus >= 201703L)
588		679
589	#if ECB_CPP	680	#if ECB_CPP
590	#define ECB_C 0	681	#define ECB_C 0
591	#define ECB_STDC_VERSION 0	682	#define ECB_STDC_VERSION 0
592	#else	683	#else
…		…
594	#define ECB_STDC_VERSION __STDC_VERSION__	685	#define ECB_STDC_VERSION __STDC_VERSION__
595	#endif	686	#endif
596		687
597	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)	688	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
598	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)	689	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		690	#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
599		691
600	#if ECB_CPP	692	#if ECB_CPP
601	#define ECB_EXTERN_C extern "C"	693	#define ECB_EXTERN_C extern "C"
602	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	694	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
603	#define ECB_EXTERN_C_END }	695	#define ECB_EXTERN_C_END }
…		…
618		710
619	#if ECB_NO_SMP	711	#if ECB_NO_SMP
620	#define ECB_MEMORY_FENCE do { } while (0)	712	#define ECB_MEMORY_FENCE do { } while (0)
621	#endif	713	#endif
622		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
623	#ifndef ECB_MEMORY_FENCE	724	#ifndef ECB_MEMORY_FENCE
624	#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")
625	#if __i386 || __i386__	727	#if __i386 || __i386__
626	#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")
627	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	729	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	730	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
629	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	731	#elif ECB_GCC_AMD64
630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	732	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	733	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	734	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
633	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	735	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634	#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 */
635	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	744	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
636	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	745	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		746	|| defined __ARM_ARCH_6T2__
637	#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")
638	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \	748	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	749	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
640	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	750	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641	#elif __aarch64__	751	#elif __aarch64__
642	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")	752	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643	#elif (__sparc || __sparc__) && !__sparcv8	753	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
644	#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")
645	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	755	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	756	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647	#elif defined __s390__ || defined __s390x__	757	#elif defined __s390__ || defined __s390x__
648	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	758	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
…		…
671	#if ECB_GCC_VERSION(4,7)	781	#if ECB_GCC_VERSION(4,7)
672	/* see comment below (stdatomic.h) about the C11 memory model. */	782	/* see comment below (stdatomic.h) about the C11 memory model. */
673	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	783	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)	784	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)	785	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		786	#define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
676		787
677	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	788	#elif ECB_CLANG_EXTENSION(c_atomic)
678	* without risking compile time errors with other compilers. We *could*
679	* define our own ecb_clang_has_feature, but I just can't be bothered to work
680	* around this shit time and again.
681	* #elif defined __clang && __has_feature (cxx_atomic)
682	* // see comment below (stdatomic.h) about the C11 memory model.	789	/* see comment below (stdatomic.h) about the C11 memory model. */
683	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	790	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684	* #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)	791	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685	* #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)	792	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686	*/	793	#define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
687		794
688	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	795	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689	#define ECB_MEMORY_FENCE __sync_synchronize ()	796	#define ECB_MEMORY_FENCE __sync_synchronize ()
690	#elif _MSC_VER >= 1500 /* VC++ 2008 */	797	#elif _MSC_VER >= 1500 /* VC++ 2008 */
691	/* 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... */
…		…
701	#elif defined _WIN32	808	#elif defined _WIN32
702	#include <WinNT.h>	809	#include <WinNT.h>
703	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	810	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
704	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	811	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
705	#include <mbarrier.h>	812	#include <mbarrier.h>
706	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	813	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
707	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	814	#define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
708	#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 ()
709	#elif __xlC__	817	#elif __xlC__
710	#define ECB_MEMORY_FENCE __sync ()	818	#define ECB_MEMORY_FENCE __sync ()
711	#endif	819	#endif
712	#endif	820	#endif
713		821
714	#ifndef ECB_MEMORY_FENCE	822	#ifndef ECB_MEMORY_FENCE
715	#if ECB_C11 && !defined __STDC_NO_ATOMICS__	823	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
716	/* 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, */
717	/* not just C11 atomics and atomic accesses */	825	/* not just C11 atomics and atomic accesses */
718	#include <stdatomic.h>	826	#include <stdatomic.h>
719	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
720	/* any fence other than seq_cst, which isn't very efficient for us. */
721	/* Why that is, we don't know - either the C11 memory model is quite useless */
722	/* for most usages, or gcc and clang have a bug */
723	/* I *currently* lean towards the latter, and inefficiently implement */
724	/* all three of ecb's fences as a seq_cst fence */
725	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
726	/* for all __atomic_thread_fence's except seq_cst */
727	#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)
728	#endif	830	#endif
729	#endif	831	#endif
730		832
731	#ifndef ECB_MEMORY_FENCE	833	#ifndef ECB_MEMORY_FENCE
732	#if !ECB_AVOID_PTHREADS	834	#if !ECB_AVOID_PTHREADS
…		…
752		854
753	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE	855	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
754	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	856	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755	#endif	857	#endif
756		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
757	/*****************************************************************************/	863	/*****************************************************************************/
758		864
759	#if __cplusplus	865	#if ECB_CPP
760	#define ecb_inline static inline	866	#define ecb_inline static inline
761	#elif ECB_GCC_VERSION(2,5)	867	#elif ECB_GCC_VERSION(2,5)
762	#define ecb_inline static __inline__	868	#define ecb_inline static __inline__
763	#elif ECB_C99	869	#elif ECB_C99
764	#define ecb_inline static inline	870	#define ecb_inline static inline
…		…
778		884
779	#define ECB_CONCAT_(a, b) a ## b	885	#define ECB_CONCAT_(a, b) a ## b
780	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	886	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781	#define ECB_STRINGIFY_(a) # a	887	#define ECB_STRINGIFY_(a) # a
782	#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))
783		890
784	#define ecb_function_ ecb_inline	891	#define ecb_function_ ecb_inline
785		892
786	#if ECB_GCC_VERSION(3,1)	893	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
787	#define ecb_attribute(attrlist) __attribute__(attrlist)	894	#define ecb_attribute(attrlist) __attribute__ (attrlist)
788	#define ecb_is_constant(expr) __builtin_constant_p (expr)
789	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
790	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
791	#else	895	#else
792	#define ecb_attribute(attrlist)	896	#define ecb_attribute(attrlist)
		897	#endif
793		898
		899	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
		900	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		901	#else
794	/* possible C11 impl for integral types	902	/* possible C11 impl for integral types
795	typedef struct ecb_is_constant_struct ecb_is_constant_struct;	903	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */	904	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797		905
798	#define ecb_is_constant(expr) 0	906	#define ecb_is_constant(expr) 0
		907	#endif
		908
		909	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
		910	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		911	#else
799	#define ecb_expect(expr,value) (expr)	912	#define ecb_expect(expr,value) (expr)
		913	#endif
		914
		915	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
		916	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		917	#else
800	#define ecb_prefetch(addr,rw,locality)	918	#define ecb_prefetch(addr,rw,locality)
801	#endif	919	#endif
802		920
803	/* no emulation for ecb_decltype */	921	/* no emulation for ecb_decltype */
804	#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; };
805	#define ecb_decltype(x) __decltype(x)	925	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
806	#elif ECB_GCC_VERSION(3,0)	926	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
807	#define ecb_decltype(x) __typeof(x)	927	#define ecb_decltype(x) __typeof__ (x)
808	#endif	928	#endif
809		929
810	#if _MSC_VER >= 1300	930	#if _MSC_VER >= 1300
811	#define ecb_deprecated __declspec(deprecated)	931	#define ecb_deprecated __declspec (deprecated)
812	#else	932	#else
813	#define ecb_deprecated ecb_attribute ((__deprecated__))	933	#define ecb_deprecated ecb_attribute ((__deprecated__))
814	#endif	934	#endif
815		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
816	#define ecb_noinline ecb_attribute ((__noinline__))	947	#define ecb_noinline ecb_attribute ((__noinline__))
		948	#endif
		949
817	#define ecb_unused ecb_attribute ((__unused__))	950	#define ecb_unused ecb_attribute ((__unused__))
818	#define ecb_const ecb_attribute ((__const__))	951	#define ecb_const ecb_attribute ((__const__))
819	#define ecb_pure ecb_attribute ((__pure__))	952	#define ecb_pure ecb_attribute ((__pure__))
820		953
821	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */	954	#if ECB_C11 || __IBMC_NORETURN
822	#if ECB_C11	955	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
823	#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)
824	#else	962	#else
825	#define ecb_noreturn ecb_attribute ((__noreturn__))	963	#define ecb_noreturn ecb_attribute ((__noreturn__))
826	#endif	964	#endif
827		965
828	#if ECB_GCC_VERSION(4,3)	966	#if ECB_GCC_VERSION(4,3)
…		…
843	/* for compatibility to the rest of the world */	981	/* for compatibility to the rest of the world */
844	#define ecb_likely(expr) ecb_expect_true (expr)	982	#define ecb_likely(expr) ecb_expect_true (expr)
845	#define ecb_unlikely(expr) ecb_expect_false (expr)	983	#define ecb_unlikely(expr) ecb_expect_false (expr)
846		984
847	/* count trailing zero bits and count # of one bits */	985	/* count trailing zero bits and count # of one bits */
848	#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))
849	/* 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 */
850	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	991	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
851	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	992	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
852	#define ecb_ctz32(x) __builtin_ctz (x)	993	#define ecb_ctz32(x) __builtin_ctz (x)
853	#define ecb_ctz64(x) __builtin_ctzll (x)	994	#define ecb_ctz64(x) __builtin_ctzll (x)
854	#define ecb_popcount32(x) __builtin_popcount (x)	995	#define ecb_popcount32(x) __builtin_popcount (x)
855	/* no popcountll */	996	/* no popcountll */
856	#else	997	#else
857	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	998	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
858	ecb_function_ int	999	ecb_function_ ecb_const int
859	ecb_ctz32 (uint32_t x)	1000	ecb_ctz32 (uint32_t x)
860	{	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
861	int r = 0;	1007	int r = 0;
862		1008
863	x &= ~x + 1; /* this isolates the lowest bit */	1009	x &= ~x + 1; /* this isolates the lowest bit */
864		1010
865	#if ECB_branchless_on_i386	1011	#if ECB_branchless_on_i386
…		…
875	if (x & 0xff00ff00) r += 8;	1021	if (x & 0xff00ff00) r += 8;
876	if (x & 0xffff0000) r += 16;	1022	if (x & 0xffff0000) r += 16;
877	#endif	1023	#endif
878		1024
879	return r;	1025	return r;
		1026	#endif
880	}	1027	}
881		1028
882	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	1029	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
883	ecb_function_ int	1030	ecb_function_ ecb_const int
884	ecb_ctz64 (uint64_t x)	1031	ecb_ctz64 (uint64_t x)
885	{	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
886	int shift = x & 0xffffffffU ? 0 : 32;	1038	int shift = x & 0xffffffff ? 0 : 32;
887	return ecb_ctz32 (x >> shift) + shift;	1039	return ecb_ctz32 (x >> shift) + shift;
		1040	#endif
888	}	1041	}
889		1042
890	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	1043	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
891	ecb_function_ int	1044	ecb_function_ ecb_const int
892	ecb_popcount32 (uint32_t x)	1045	ecb_popcount32 (uint32_t x)
893	{	1046	{
894	x -= (x >> 1) & 0x55555555;	1047	x -= (x >> 1) & 0x55555555;
895	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	1048	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
896	x = ((x >> 4) + x) & 0x0f0f0f0f;	1049	x = ((x >> 4) + x) & 0x0f0f0f0f;
897	x *= 0x01010101;	1050	x *= 0x01010101;
898		1051
899	return x >> 24;	1052	return x >> 24;
900	}	1053	}
901		1054
902	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	1055	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
903	ecb_function_ int ecb_ld32 (uint32_t x)	1056	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
904	{	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
905	int r = 0;	1063	int r = 0;
906		1064
907	if (x >> 16) { x >>= 16; r += 16; }	1065	if (x >> 16) { x >>= 16; r += 16; }
908	if (x >> 8) { x >>= 8; r += 8; }	1066	if (x >> 8) { x >>= 8; r += 8; }
909	if (x >> 4) { x >>= 4; r += 4; }	1067	if (x >> 4) { x >>= 4; r += 4; }
910	if (x >> 2) { x >>= 2; r += 2; }	1068	if (x >> 2) { x >>= 2; r += 2; }
911	if (x >> 1) { r += 1; }	1069	if (x >> 1) { r += 1; }
912		1070
913	return r;	1071	return r;
		1072	#endif
914	}	1073	}
915		1074
916	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1075	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
917	ecb_function_ int ecb_ld64 (uint64_t x)	1076	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
918	{	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
919	int r = 0;	1083	int r = 0;
920		1084
921	if (x >> 32) { x >>= 32; r += 32; }	1085	if (x >> 32) { x >>= 32; r += 32; }
922		1086
923	return r + ecb_ld32 (x);	1087	return r + ecb_ld32 (x);
		1088	#endif
924	}	1089	}
925	#endif	1090	#endif
926		1091
927	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);
928	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)); }
929	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);
930	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)); }
931		1096
932	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	1097	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
933	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	1098	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
934	{	1099	{
935	return ( (x * 0x0802U & 0x22110U)	1100	return ( (x * 0x0802U & 0x22110U)
936	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	1101	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
937	}	1102	}
938		1103
939	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	1104	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
940	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	1105	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
941	{	1106	{
942	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);	1107	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
943	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);	1108	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
944	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);	1109	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
945	x = ( x >> 8 ) | ( x << 8);	1110	x = ( x >> 8 ) | ( x << 8);
946		1111
947	return x;	1112	return x;
948	}	1113	}
949		1114
950	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1115	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
951	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1116	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
952	{	1117	{
953	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);	1118	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
954	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);	1119	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
955	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);	1120	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
956	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);	1121	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
…		…
959	return x;	1124	return x;
960	}	1125	}
961		1126
962	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1127	/* popcount64 is only available on 64 bit cpus as gcc builtin */
963	/* so for this version we are lazy */	1128	/* so for this version we are lazy */
964	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1129	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
965	ecb_function_ int	1130	ecb_function_ ecb_const int
966	ecb_popcount64 (uint64_t x)	1131	ecb_popcount64 (uint64_t x)
967	{	1132	{
968	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1133	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
969	}	1134	}
970		1135
971	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);
972	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);
973	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);
974	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);
975	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);
976	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);
977	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);
978	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);
979		1144
980	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); }
981	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); }
982	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); }
983	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); }
984	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); }
985	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); }
986	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); }
987	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); }
988		1153
989	#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
990	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1158	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1159	#endif
991	#define ecb_bswap32(x) __builtin_bswap32 (x)	1160	#define ecb_bswap32(x) __builtin_bswap32 (x)
992	#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)))
993	#else	1167	#else
994	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1168	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
995	ecb_function_ uint16_t	1169	ecb_function_ ecb_const uint16_t
996	ecb_bswap16 (uint16_t x)	1170	ecb_bswap16 (uint16_t x)
997	{	1171	{
998	return ecb_rotl16 (x, 8);	1172	return ecb_rotl16 (x, 8);
999	}	1173	}
1000		1174
1001	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1175	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1002	ecb_function_ uint32_t	1176	ecb_function_ ecb_const uint32_t
1003	ecb_bswap32 (uint32_t x)	1177	ecb_bswap32 (uint32_t x)
1004	{	1178	{
1005	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1179	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1006	}	1180	}
1007		1181
1008	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1182	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1009	ecb_function_ uint64_t	1183	ecb_function_ ecb_const uint64_t
1010	ecb_bswap64 (uint64_t x)	1184	ecb_bswap64 (uint64_t x)
1011	{	1185	{
1012	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1186	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1013	}	1187	}
1014	#endif	1188	#endif
1015		1189
1016	#if ECB_GCC_VERSION(4,5)	1190	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1017	#define ecb_unreachable() __builtin_unreachable ()	1191	#define ecb_unreachable() __builtin_unreachable ()
1018	#else	1192	#else
1019	/* 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 :/ */
1020	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1194	ecb_inline ecb_noreturn void ecb_unreachable (void);
1021	ecb_inline void ecb_unreachable (void) { }	1195	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1022	#endif	1196	#endif
1023		1197
1024	/* try to tell the compiler that some condition is definitely true */	1198	/* try to tell the compiler that some condition is definitely true */
1025	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1199	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1026		1200
1027	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1201	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1028	ecb_inline unsigned char	1202	ecb_inline ecb_const uint32_t
1029	ecb_byteorder_helper (void)	1203	ecb_byteorder_helper (void)
1030	{	1204	{
1031	/* the union code still generates code under pressure in gcc, */	1205	/* the union code still generates code under pressure in gcc, */
1032	/* but less than using pointers, and always seems to */	1206	/* but less than using pointers, and always seems to */
1033	/* successfully return a constant. */	1207	/* successfully return a constant. */
1034	/* the reason why we have this horrible preprocessor mess */	1208	/* the reason why we have this horrible preprocessor mess */
1035	/* 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 */
1036	/* or when using a recent enough gcc version (>= 4.6) */	1210	/* or when using a recent enough gcc version (>= 4.6) */
1037	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1038	return 0x44;
1039	#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
1040	return 0x44;	1214	return 0x44332211;
1041	#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
1042	return 0x11;	1218	return 0x11223344;
1043	#else	1219	#else
1044	union	1220	union
1045	{	1221	{
		1222	uint8_t c[4];
1046	uint32_t i;	1223	uint32_t u;
1047	uint8_t c;
1048	} u = { 0x11223344 };	1224	} u = { 0x11, 0x22, 0x33, 0x44 };
1049	return u.c;	1225	return u.u;
1050	#endif	1226	#endif
1051	}	1227	}
1052		1228
1053	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1229	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1054	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; }
1055	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1231	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1056	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; }
1057		1233
1058	#if ECB_GCC_VERSION(3,0) || ECB_C99	1234	#if ECB_GCC_VERSION(3,0) || ECB_C99
1059	#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))
1060	#else	1236	#else
1061	#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)))
1062	#endif	1238	#endif
1063		1239
1064	#if __cplusplus	1240	#if ECB_CPP
1065	template<typename T>	1241	template<typename T>
1066	static inline T ecb_div_rd (T val, T div)	1242	static inline T ecb_div_rd (T val, T div)
1067	{	1243	{
1068	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1244	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1069	}	1245	}
…		…
1086	}	1262	}
1087	#else	1263	#else
1088	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1264	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1089	#endif	1265	#endif
1090		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
1091	/*******************************************************************************/	1363	/*******************************************************************************/
1092	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */	1364	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1093		1365
1094	/* basically, everything uses "ieee pure-endian" floating point numbers */	1366	/* basically, everything uses "ieee pure-endian" floating point numbers */
1095	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1367	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1096	#if 0 \	1368	#if 0 \
1097	|| __i386 || __i386__ \	1369	|| __i386 || __i386__ \
1098	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \	1370	|| ECB_GCC_AMD64 \
1099	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \	1371	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1100	|| defined __s390__ || defined __s390x__ \	1372	|| defined __s390__ || defined __s390x__ \
1101	|| defined __mips__ \	1373	|| defined __mips__ \
1102	|| defined __alpha__ \	1374	|| defined __alpha__ \
1103	|| defined __hppa__ \	1375	|| defined __hppa__ \
1104	|| defined __ia64__ \	1376	|| defined __ia64__ \
1105	|| defined __m68k__ \	1377	|| defined __m68k__ \
1106	|| defined __m88k__ \	1378	|| defined __m88k__ \
1107	|| defined __sh__ \	1379	|| defined __sh__ \
1108	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \	1380	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1109	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \	1381	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1110	|| defined __aarch64__	1382	|| defined __aarch64__
1111	#define ECB_STDFP 1	1383	#define ECB_STDFP 1
1112	#include <string.h> /* for memcpy */	1384	#include <string.h> /* for memcpy */
1113	#else	1385	#else
…		…
1129	#define ECB_NAN NAN	1401	#define ECB_NAN NAN
1130	#else	1402	#else
1131	#define ECB_NAN ECB_INFINITY	1403	#define ECB_NAN ECB_INFINITY
1132	#endif	1404	#endif
1133		1405
1134	/* converts an ieee half/binary16 to a float */	1406	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1135	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;	1407	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
1136	ecb_function_ float	1408	#define ecb_frexpf(x,e) frexpf ((x), (e))
1137	ecb_binary16_to_float (uint16_t x)	1409	#else
1138	{	1410	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1139	int e = (x >> 10) & 0x1f;	1411	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1140	int m = x & 0x3ff;	1412	#endif
1141	float r;
1142
1143	if (!e ) r = ldexpf (m , -24);
1144	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1145	else if (m ) r = ECB_NAN;
1146	else r = ECB_INFINITY;
1147
1148	return x & 0x8000 ? -r : r;
1149	}
1150		1413
1151	/* convert a float to ieee single/binary32 */	1414	/* convert a float to ieee single/binary32 */
1152	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);
1153	ecb_function_ uint32_t	1416	ecb_function_ ecb_const uint32_t
1154	ecb_float_to_binary32 (float x)	1417	ecb_float_to_binary32 (float x)
1155	{	1418	{
1156	uint32_t r;	1419	uint32_t r;
1157		1420
1158	#if ECB_STDFP	1421	#if ECB_STDFP
…		…
1165	if (x == 0e0f ) return 0x00000000U;	1428	if (x == 0e0f ) return 0x00000000U;
1166	if (x > +3.40282346638528860e+38f) return 0x7f800000U;	1429	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1167	if (x < -3.40282346638528860e+38f) return 0xff800000U;	1430	if (x < -3.40282346638528860e+38f) return 0xff800000U;
1168	if (x != x ) return 0x7fbfffffU;	1431	if (x != x ) return 0x7fbfffffU;
1169		1432
1170	m = frexpf (x, &e) * 0x1000000U;	1433	m = ecb_frexpf (x, &e) * 0x1000000U;
1171		1434
1172	r = m & 0x80000000U;	1435	r = m & 0x80000000U;
1173		1436
1174	if (r)	1437	if (r)
1175	m = -m;	1438	m = -m;
…		…
1187		1450
1188	return r;	1451	return r;
1189	}	1452	}
1190		1453
1191	/* converts an ieee single/binary32 to a float */	1454	/* converts an ieee single/binary32 to a float */
1192	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);
1193	ecb_function_ float	1456	ecb_function_ ecb_const float
1194	ecb_binary32_to_float (uint32_t x)	1457	ecb_binary32_to_float (uint32_t x)
1195	{	1458	{
1196	float r;	1459	float r;
1197		1460
1198	#if ECB_STDFP	1461	#if ECB_STDFP
…		…
1208	x |= 0x800000U;	1471	x |= 0x800000U;
1209	else	1472	else
1210	e = 1;	1473	e = 1;
1211		1474
1212	/* 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 */
1213	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1476	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1214		1477
1215	r = neg ? -r : r;	1478	r = neg ? -r : r;
1216	#endif	1479	#endif
1217		1480
1218	return r;	1481	return r;
1219	}	1482	}
1220		1483
1221	/* convert a double to ieee double/binary64 */	1484	/* convert a double to ieee double/binary64 */
1222	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);
1223	ecb_function_ uint64_t	1486	ecb_function_ ecb_const uint64_t
1224	ecb_double_to_binary64 (double x)	1487	ecb_double_to_binary64 (double x)
1225	{	1488	{
1226	uint64_t r;	1489	uint64_t r;
1227		1490
1228	#if ECB_STDFP	1491	#if ECB_STDFP
…		…
1257		1520
1258	return r;	1521	return r;
1259	}	1522	}
1260		1523
1261	/* converts an ieee double/binary64 to a double */	1524	/* converts an ieee double/binary64 to a double */
1262	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);
1263	ecb_function_ double	1526	ecb_function_ ecb_const double
1264	ecb_binary64_to_double (uint64_t x)	1527	ecb_binary64_to_double (uint64_t x)
1265	{	1528	{
1266	double r;	1529	double r;
1267		1530
1268	#if ECB_STDFP	1531	#if ECB_STDFP
…		…
1286	#endif	1549	#endif
1287		1550
1288	return r;	1551	return r;
1289	}	1552	}
1290		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
1291	#endif	1570	#endif
1292		1571
1293	#endif	1572	#endif
1294		1573
1295	/* ECB.H END */	1574	/* ECB.H END */
1296		1575
1297	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1576	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1298	/* 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
1299	* 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
1300	* 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
1301	* libev, in which cases the memory fences become nops.	1580	* libev, in which cases the memory fences become nops.
1302	* alternatively, you can remove this #error and link against libpthread,	1581	* alternatively, you can remove this #error and link against libpthread,
1303	* which will then provide the memory fences.	1582	* which will then provide the memory fences.
1304	*/	1583	*/
1305	# error "memory fences not defined for your architecture, please report"	1584	# error "memory fences not defined for your architecture, please report"
…		…
1309	# define ECB_MEMORY_FENCE do { } while (0)	1588	# define ECB_MEMORY_FENCE do { } while (0)
1310	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	1589	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1311	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	1590	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1312	#endif	1591	#endif
1313		1592
1314	#define expect_false(cond) ecb_expect_false (cond)
1315	#define expect_true(cond) ecb_expect_true (cond)
1316	#define noinline ecb_noinline
1317
1318	#define inline_size ecb_inline	1593	#define inline_size ecb_inline
1319		1594
1320	#if EV_FEATURE_CODE	1595	#if EV_FEATURE_CODE
1321	# define inline_speed ecb_inline	1596	# define inline_speed ecb_inline
1322	#else	1597	#else
1323	# define inline_speed static noinline	1598	# define inline_speed ecb_noinline static
1324	#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	/*****************************************************************************/
1325		1666
1326	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1667	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1327		1668
1328	#if EV_MINPRI == EV_MAXPRI	1669	#if EV_MINPRI == EV_MAXPRI
1329	# define ABSPRI(w) (((W)w), 0)	1670	# define ABSPRI(w) (((W)w), 0)
1330	#else	1671	#else
1331	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	1672	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1332	#endif	1673	#endif
1333		1674
1334	#define EMPTY /* required for microsofts broken pseudo-c compiler */	1675	#define EMPTY /* required for microsofts broken pseudo-c compiler */
1335	#define EMPTY2(a,b) /* used to suppress some warnings */
1336		1676
1337	typedef ev_watcher *W;	1677	typedef ev_watcher *W;
1338	typedef ev_watcher_list *WL;	1678	typedef ev_watcher_list *WL;
1339	typedef ev_watcher_time *WT;	1679	typedef ev_watcher_time *WT;
1340		1680
…		…
1365	# include "ev_win32.c"	1705	# include "ev_win32.c"
1366	#endif	1706	#endif
1367		1707
1368	/*****************************************************************************/	1708	/*****************************************************************************/
1369		1709
		1710	#if EV_USE_LINUXAIO
		1711	# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
		1712	#endif
		1713
1370	/* define a suitable floor function (only used by periodics atm) */	1714	/* define a suitable floor function (only used by periodics atm) */
1371		1715
1372	#if EV_USE_FLOOR	1716	#if EV_USE_FLOOR
1373	# include <math.h>	1717	# include <math.h>
1374	# define ev_floor(v) floor (v)	1718	# define ev_floor(v) floor (v)
1375	#else	1719	#else
1376		1720
1377	#include <float.h>	1721	#include <float.h>
1378		1722
1379	/* 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
1380	static ev_tstamp noinline	1725	static ev_tstamp
1381	ev_floor (ev_tstamp v)	1726	ev_floor (ev_tstamp v)
1382	{	1727	{
1383	/* the choice of shift factor is not terribly important */	1728	/* the choice of shift factor is not terribly important */
1384	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1729	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1385	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1730	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1386	#else	1731	#else
1387	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;	1732	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1388	#endif	1733	#endif
1389		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
1390	/* argument too large for an unsigned long? */	1743	/* argument too large for an unsigned long? then reduce it */
1391	if (expect_false (v >= shift))	1744	if (ecb_expect_false (v >= shift))
1392	{	1745	{
1393	ev_tstamp f;	1746	ev_tstamp f;
1394		1747
1395	if (v == v - 1.)	1748	if (v == v - 1.)
1396	return v; /* very large number */	1749	return v; /* very large numbers are assumed to be integer */
1397		1750
1398	f = shift * ev_floor (v * (1. / shift));	1751	f = shift * ev_floor (v * (1. / shift));
1399	return f + ev_floor (v - f);	1752	return f + ev_floor (v - f);
1400	}	1753	}
1401		1754
1402	/* special treatment for negative args? */
1403	if (expect_false (v < 0.))
1404	{
1405	ev_tstamp f = -ev_floor (-v);
1406
1407	return f - (f == v ? 0 : 1);
1408	}
1409
1410	/* fits into an unsigned long */	1755	/* fits into an unsigned long */
1411	return (unsigned long)v;	1756	return (unsigned long)v;
1412	}	1757	}
1413		1758
1414	#endif	1759	#endif
…		…
1417		1762
1418	#ifdef __linux	1763	#ifdef __linux
1419	# include <sys/utsname.h>	1764	# include <sys/utsname.h>
1420	#endif	1765	#endif
1421		1766
1422	static unsigned int noinline ecb_cold	1767	ecb_noinline ecb_cold
		1768	static unsigned int
1423	ev_linux_version (void)	1769	ev_linux_version (void)
1424	{	1770	{
1425	#ifdef __linux	1771	#ifdef __linux
1426	unsigned int v = 0;	1772	unsigned int v = 0;
1427	struct utsname buf;	1773	struct utsname buf;
…		…
1456	}	1802	}
1457		1803
1458	/*****************************************************************************/	1804	/*****************************************************************************/
1459		1805
1460	#if EV_AVOID_STDIO	1806	#if EV_AVOID_STDIO
1461	static void noinline ecb_cold	1807	ecb_noinline ecb_cold
		1808	static void
1462	ev_printerr (const char *msg)	1809	ev_printerr (const char *msg)
1463	{	1810	{
1464	write (STDERR_FILENO, msg, strlen (msg));	1811	write (STDERR_FILENO, msg, strlen (msg));
1465	}	1812	}
1466	#endif	1813	#endif
1467		1814
1468	static void (*syserr_cb)(const char *msg) EV_THROW;	1815	static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1469		1816
1470	void ecb_cold	1817	ecb_cold
		1818	void
1471	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
1472	{	1820	{
1473	syserr_cb = cb;	1821	syserr_cb = cb;
1474	}	1822	}
1475		1823
1476	static void noinline ecb_cold	1824	ecb_noinline ecb_cold
		1825	static void
1477	ev_syserr (const char *msg)	1826	ev_syserr (const char *msg)
1478	{	1827	{
1479	if (!msg)	1828	if (!msg)
1480	msg = "(libev) system error";	1829	msg = "(libev) system error";
1481		1830
…		…
1494	abort ();	1843	abort ();
1495	}	1844	}
1496	}	1845	}
1497		1846
1498	static void *	1847	static void *
1499	ev_realloc_emul (void *ptr, long size) EV_THROW	1848	ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1500	{	1849	{
1501	/* some systems, notably openbsd and darwin, fail to properly	1850	/* some systems, notably openbsd and darwin, fail to properly
1502	* 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
1503	* the single unix specification, so work around them here.	1852	* the single unix specification, so work around them here.
1504	* recently, also (at least) fedora and debian started breaking it,	1853	* recently, also (at least) fedora and debian started breaking it,
…		…
1510		1859
1511	free (ptr);	1860	free (ptr);
1512	return 0;	1861	return 0;
1513	}	1862	}
1514		1863
1515	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;
1516		1865
1517	void ecb_cold	1866	ecb_cold
		1867	void
1518	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
1519	{	1869	{
1520	alloc = cb;	1870	alloc = cb;
1521	}	1871	}
1522		1872
1523	inline_speed void *	1873	inline_speed void *
…		…
1550	typedef struct	1900	typedef struct
1551	{	1901	{
1552	WL head;	1902	WL head;
1553	unsigned char events; /* the events watched for */	1903	unsigned char events; /* the events watched for */
1554	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) */
1555	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 */
1556	unsigned char unused;	1906	unsigned char eflags; /* flags field for use by backends */
1557	#if EV_USE_EPOLL	1907	#if EV_USE_EPOLL
1558	unsigned int egen; /* generation counter to counter epoll bugs */	1908	unsigned int egen; /* generation counter to counter epoll bugs */
1559	#endif	1909	#endif
1560	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP	1910	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1561	SOCKET handle;	1911	SOCKET handle;
…		…
1625	static int ev_default_loop_ptr;	1975	static int ev_default_loop_ptr;
1626		1976
1627	#endif	1977	#endif
1628		1978
1629	#if EV_FEATURE_API	1979	#if EV_FEATURE_API
1630	# 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)
1631	# 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)
1632	# define EV_INVOKE_PENDING invoke_cb (EV_A)	1982	# define EV_INVOKE_PENDING invoke_cb (EV_A)
1633	#else	1983	#else
1634	# define EV_RELEASE_CB (void)0	1984	# define EV_RELEASE_CB (void)0
1635	# define EV_ACQUIRE_CB (void)0	1985	# define EV_ACQUIRE_CB (void)0
1636	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	1986	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
…		…
1640		1990
1641	/*****************************************************************************/	1991	/*****************************************************************************/
1642		1992
1643	#ifndef EV_HAVE_EV_TIME	1993	#ifndef EV_HAVE_EV_TIME
1644	ev_tstamp	1994	ev_tstamp
1645	ev_time (void) EV_THROW	1995	ev_time (void) EV_NOEXCEPT
1646	{	1996	{
1647	#if EV_USE_REALTIME	1997	#if EV_USE_REALTIME
1648	if (expect_true (have_realtime))	1998	if (ecb_expect_true (have_realtime))
1649	{	1999	{
1650	struct timespec ts;	2000	struct timespec ts;
1651	clock_gettime (CLOCK_REALTIME, &ts);	2001	clock_gettime (CLOCK_REALTIME, &ts);
1652	return ts.tv_sec + ts.tv_nsec * 1e-9;	2002	return EV_TS_GET (ts);
1653	}	2003	}
1654	#endif	2004	#endif
1655		2005
1656	struct timeval tv;	2006	struct timeval tv;
1657	gettimeofday (&tv, 0);	2007	gettimeofday (&tv, 0);
1658	return tv.tv_sec + tv.tv_usec * 1e-6;	2008	return EV_TV_GET (tv);
1659	}	2009	}
1660	#endif	2010	#endif
1661		2011
1662	inline_size ev_tstamp	2012	inline_size ev_tstamp
1663	get_clock (void)	2013	get_clock (void)
1664	{	2014	{
1665	#if EV_USE_MONOTONIC	2015	#if EV_USE_MONOTONIC
1666	if (expect_true (have_monotonic))	2016	if (ecb_expect_true (have_monotonic))
1667	{	2017	{
1668	struct timespec ts;	2018	struct timespec ts;
1669	clock_gettime (CLOCK_MONOTONIC, &ts);	2019	clock_gettime (CLOCK_MONOTONIC, &ts);
1670	return ts.tv_sec + ts.tv_nsec * 1e-9;	2020	return EV_TS_GET (ts);
1671	}	2021	}
1672	#endif	2022	#endif
1673		2023
1674	return ev_time ();	2024	return ev_time ();
1675	}	2025	}
1676		2026
1677	#if EV_MULTIPLICITY	2027	#if EV_MULTIPLICITY
1678	ev_tstamp	2028	ev_tstamp
1679	ev_now (EV_P) EV_THROW	2029	ev_now (EV_P) EV_NOEXCEPT
1680	{	2030	{
1681	return ev_rt_now;	2031	return ev_rt_now;
1682	}	2032	}
1683	#endif	2033	#endif
1684		2034
1685	void	2035	void
1686	ev_sleep (ev_tstamp delay) EV_THROW	2036	ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1687	{	2037	{
1688	if (delay > 0.)	2038	if (delay > 0.)
1689	{	2039	{
1690	#if EV_USE_NANOSLEEP	2040	#if EV_USE_NANOSLEEP
1691	struct timespec ts;	2041	struct timespec ts;
1692		2042
1693	EV_TS_SET (ts, delay);	2043	EV_TS_SET (ts, delay);
1694	nanosleep (&ts, 0);	2044	nanosleep (&ts, 0);
1695	#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) */
1696	Sleep ((unsigned long)(delay * 1e3));	2048	Sleep ((unsigned long)(EV_TS_TO_MS (delay)));
1697	#else	2049	#else
1698	struct timeval tv;	2050	struct timeval tv;
1699		2051
1700	/* 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 */
1701	/* something not guaranteed by newer posix versions, but guaranteed */	2053	/* something not guaranteed by newer posix versions, but guaranteed */
…		…
1731	}	2083	}
1732		2084
1733	return ncur;	2085	return ncur;
1734	}	2086	}
1735		2087
1736	static void * noinline ecb_cold	2088	ecb_noinline ecb_cold
		2089	static void *
1737	array_realloc (int elem, void *base, int *cur, int cnt)	2090	array_realloc (int elem, void *base, int *cur, int cnt)
1738	{	2091	{
1739	*cur = array_nextsize (elem, *cur, cnt);	2092	*cur = array_nextsize (elem, *cur, cnt);
1740	return ev_realloc (base, elem * *cur);	2093	return ev_realloc (base, elem * *cur);
1741	}	2094	}
1742		2095
		2096	#define array_needsize_noinit(base,offset,count)
		2097
1743	#define array_init_zero(base,count) \	2098	#define array_needsize_zerofill(base,offset,count) \
1744	memset ((void *)(base), 0, sizeof (*(base)) * (count))	2099	memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1745		2100
1746	#define array_needsize(type,base,cur,cnt,init) \	2101	#define array_needsize(type,base,cur,cnt,init) \
1747	if (expect_false ((cnt) > (cur))) \	2102	if (ecb_expect_false ((cnt) > (cur))) \
1748	{ \	2103	{ \
1749	int ecb_unused ocur_ = (cur); \	2104	ecb_unused int ocur_ = (cur); \
1750	(base) = (type *)array_realloc \	2105	(base) = (type *)array_realloc \
1751	(sizeof (type), (base), &(cur), (cnt)); \	2106	(sizeof (type), (base), &(cur), (cnt)); \
1752	init ((base) + (ocur_), (cur) - ocur_); \	2107	init ((base), ocur_, ((cur) - ocur_)); \
1753	}	2108	}
1754		2109
1755	#if 0	2110	#if 0
1756	#define array_slim(type,stem) \	2111	#define array_slim(type,stem) \
1757	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	2112	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
…		…
1766	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
1767		2122
1768	/*****************************************************************************/	2123	/*****************************************************************************/
1769		2124
1770	/* dummy callback for pending events */	2125	/* dummy callback for pending events */
1771	static void noinline	2126	ecb_noinline
		2127	static void
1772	pendingcb (EV_P_ ev_prepare *w, int revents)	2128	pendingcb (EV_P_ ev_prepare *w, int revents)
1773	{	2129	{
1774	}	2130	}
1775		2131
1776	void noinline	2132	ecb_noinline
		2133	void
1777	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	2134	ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1778	{	2135	{
1779	W w_ = (W)w;	2136	W w_ = (W)w;
1780	int pri = ABSPRI (w_);	2137	int pri = ABSPRI (w_);
1781		2138
1782	if (expect_false (w_->pending))	2139	if (ecb_expect_false (w_->pending))
1783	pendings [pri][w_->pending - 1].events |= revents;	2140	pendings [pri][w_->pending - 1].events |= revents;
1784	else	2141	else
1785	{	2142	{
1786	w_->pending = ++pendingcnt [pri];	2143	w_->pending = ++pendingcnt [pri];
1787	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	2144	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1788	pendings [pri][w_->pending - 1].w = w_;	2145	pendings [pri][w_->pending - 1].w = w_;
1789	pendings [pri][w_->pending - 1].events = revents;	2146	pendings [pri][w_->pending - 1].events = revents;
1790	}	2147	}
1791		2148
1792	pendingpri = NUMPRI - 1;	2149	pendingpri = NUMPRI - 1;
1793	}	2150	}
1794		2151
1795	inline_speed void	2152	inline_speed void
1796	feed_reverse (EV_P_ W w)	2153	feed_reverse (EV_P_ W w)
1797	{	2154	{
1798	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);	2155	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1799	rfeeds [rfeedcnt++] = w;	2156	rfeeds [rfeedcnt++] = w;
1800	}	2157	}
1801		2158
1802	inline_size void	2159	inline_size void
1803	feed_reverse_done (EV_P_ int revents)	2160	feed_reverse_done (EV_P_ int revents)
…		…
1838	inline_speed void	2195	inline_speed void
1839	fd_event (EV_P_ int fd, int revents)	2196	fd_event (EV_P_ int fd, int revents)
1840	{	2197	{
1841	ANFD *anfd = anfds + fd;	2198	ANFD *anfd = anfds + fd;
1842		2199
1843	if (expect_true (!anfd->reify))	2200	if (ecb_expect_true (!anfd->reify))
1844	fd_event_nocheck (EV_A_ fd, revents);	2201	fd_event_nocheck (EV_A_ fd, revents);
1845	}	2202	}
1846		2203
1847	void	2204	void
1848	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
1849	{	2206	{
1850	if (fd >= 0 && fd < anfdmax)	2207	if (fd >= 0 && fd < anfdmax)
1851	fd_event_nocheck (EV_A_ fd, revents);	2208	fd_event_nocheck (EV_A_ fd, revents);
1852	}	2209	}
1853		2210
…		…
1890	ev_io *w;	2247	ev_io *w;
1891		2248
1892	unsigned char o_events = anfd->events;	2249	unsigned char o_events = anfd->events;
1893	unsigned char o_reify = anfd->reify;	2250	unsigned char o_reify = anfd->reify;
1894		2251
1895	anfd->reify = 0;	2252	anfd->reify = 0;
1896		2253
1897	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */	2254	/*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1898	{	2255	{
1899	anfd->events = 0;	2256	anfd->events = 0;
1900		2257
1901	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)
1902	anfd->events |= (unsigned char)w->events;	2259	anfd->events |= (unsigned char)w->events;
…		…
1911		2268
1912	fdchangecnt = 0;	2269	fdchangecnt = 0;
1913	}	2270	}
1914		2271
1915	/* something about the given fd changed */	2272	/* something about the given fd changed */
1916	inline_size void	2273	inline_size
		2274	void
1917	fd_change (EV_P_ int fd, int flags)	2275	fd_change (EV_P_ int fd, int flags)
1918	{	2276	{
1919	unsigned char reify = anfds [fd].reify;	2277	unsigned char reify = anfds [fd].reify;
1920	anfds [fd].reify |= flags;	2278	anfds [fd].reify |= flags;
1921		2279
1922	if (expect_true (!reify))	2280	if (ecb_expect_true (!reify))
1923	{	2281	{
1924	++fdchangecnt;	2282	++fdchangecnt;
1925	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	2283	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1926	fdchanges [fdchangecnt - 1] = fd;	2284	fdchanges [fdchangecnt - 1] = fd;
1927	}	2285	}
1928	}	2286	}
1929		2287
1930	/* 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 */
1931	inline_speed void ecb_cold	2289	inline_speed ecb_cold void
1932	fd_kill (EV_P_ int fd)	2290	fd_kill (EV_P_ int fd)
1933	{	2291	{
1934	ev_io *w;	2292	ev_io *w;
1935		2293
1936	while ((w = (ev_io *)anfds [fd].head))	2294	while ((w = (ev_io *)anfds [fd].head))
…		…
1939	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);
1940	}	2298	}
1941	}	2299	}
1942		2300
1943	/* check whether the given fd is actually valid, for error recovery */	2301	/* check whether the given fd is actually valid, for error recovery */
1944	inline_size int ecb_cold	2302	inline_size ecb_cold int
1945	fd_valid (int fd)	2303	fd_valid (int fd)
1946	{	2304	{
1947	#ifdef _WIN32	2305	#ifdef _WIN32
1948	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2306	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1949	#else	2307	#else
1950	return fcntl (fd, F_GETFD) != -1;	2308	return fcntl (fd, F_GETFD) != -1;
1951	#endif	2309	#endif
1952	}	2310	}
1953		2311
1954	/* called on EBADF to verify fds */	2312	/* called on EBADF to verify fds */
1955	static void noinline ecb_cold	2313	ecb_noinline ecb_cold
		2314	static void
1956	fd_ebadf (EV_P)	2315	fd_ebadf (EV_P)
1957	{	2316	{
1958	int fd;	2317	int fd;
1959		2318
1960	for (fd = 0; fd < anfdmax; ++fd)	2319	for (fd = 0; fd < anfdmax; ++fd)
…		…
1962	if (!fd_valid (fd) && errno == EBADF)	2321	if (!fd_valid (fd) && errno == EBADF)
1963	fd_kill (EV_A_ fd);	2322	fd_kill (EV_A_ fd);
1964	}	2323	}
1965		2324
1966	/* 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 */
1967	static void noinline ecb_cold	2326	ecb_noinline ecb_cold
		2327	static void
1968	fd_enomem (EV_P)	2328	fd_enomem (EV_P)
1969	{	2329	{
1970	int fd;	2330	int fd;
1971		2331
1972	for (fd = anfdmax; fd--; )	2332	for (fd = anfdmax; fd--; )
…		…
1976	break;	2336	break;
1977	}	2337	}
1978	}	2338	}
1979		2339
1980	/* 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 */
1981	static void noinline	2341	ecb_noinline
		2342	static void
1982	fd_rearm_all (EV_P)	2343	fd_rearm_all (EV_P)
1983	{	2344	{
1984	int fd;	2345	int fd;
1985		2346
1986	for (fd = 0; fd < anfdmax; ++fd)	2347	for (fd = 0; fd < anfdmax; ++fd)
…		…
2039	ev_tstamp minat;	2400	ev_tstamp minat;
2040	ANHE *minpos;	2401	ANHE *minpos;
2041	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;	2402	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2042		2403
2043	/* find minimum child */	2404	/* find minimum child */
2044	if (expect_true (pos + DHEAP - 1 < E))	2405	if (ecb_expect_true (pos + DHEAP - 1 < E))
2045	{	2406	{
2046	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	2407	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2047	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));
2048	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));
2049	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));
2050	}	2411	}
2051	else if (pos < E)	2412	else if (pos < E)
2052	{	2413	{
2053	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	2414	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2054	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));
2055	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));
2056	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));
2057	}	2418	}
2058	else	2419	else
2059	break;	2420	break;
2060		2421
2061	if (ANHE_at (he) <= minat)	2422	if (ANHE_at (he) <= minat)
…		…
2069		2430
2070	heap [k] = he;	2431	heap [k] = he;
2071	ev_active (ANHE_w (he)) = k;	2432	ev_active (ANHE_w (he)) = k;
2072	}	2433	}
2073		2434
2074	#else /* 4HEAP */	2435	#else /* not 4HEAP */
2075		2436
2076	#define HEAP0 1	2437	#define HEAP0 1
2077	#define HPARENT(k) ((k) >> 1)	2438	#define HPARENT(k) ((k) >> 1)
2078	#define UPHEAP_DONE(p,k) (!(p))	2439	#define UPHEAP_DONE(p,k) (!(p))
2079		2440
…		…
2167		2528
2168	/*****************************************************************************/	2529	/*****************************************************************************/
2169		2530
2170	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2531	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2171		2532
2172	static void noinline ecb_cold	2533	ecb_noinline ecb_cold
		2534	static void
2173	evpipe_init (EV_P)	2535	evpipe_init (EV_P)
2174	{	2536	{
2175	if (!ev_is_active (&pipe_w))	2537	if (!ev_is_active (&pipe_w))
2176	{	2538	{
2177	int fds [2];	2539	int fds [2];
…		…
2217	inline_speed void	2579	inline_speed void
2218	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	2580	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2219	{	2581	{
2220	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 */
2221		2583
2222	if (expect_true (*flag))	2584	if (ecb_expect_true (*flag))
2223	return;	2585	return;
2224		2586
2225	*flag = 1;	2587	*flag = 1;
2226	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 */
2227		2589
…		…
2248	#endif	2610	#endif
2249	{	2611	{
2250	#ifdef _WIN32	2612	#ifdef _WIN32
2251	WSABUF buf;	2613	WSABUF buf;
2252	DWORD sent;	2614	DWORD sent;
2253	buf.buf = &buf;	2615	buf.buf = (char *)&buf;
2254	buf.len = 1;	2616	buf.len = 1;
2255	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);
2256	#else	2618	#else
2257	write (evpipe [1], &(evpipe [1]), 1);	2619	write (evpipe [1], &(evpipe [1]), 1);
2258	#endif	2620	#endif
…		…
2304	sig_pending = 0;	2666	sig_pending = 0;
2305		2667
2306	ECB_MEMORY_FENCE;	2668	ECB_MEMORY_FENCE;
2307		2669
2308	for (i = EV_NSIG - 1; i--; )	2670	for (i = EV_NSIG - 1; i--; )
2309	if (expect_false (signals [i].pending))	2671	if (ecb_expect_false (signals [i].pending))
2310	ev_feed_signal_event (EV_A_ i + 1);	2672	ev_feed_signal_event (EV_A_ i + 1);
2311	}	2673	}
2312	#endif	2674	#endif
2313		2675
2314	#if EV_ASYNC_ENABLE	2676	#if EV_ASYNC_ENABLE
…		…
2330	}	2692	}
2331		2693
2332	/*****************************************************************************/	2694	/*****************************************************************************/
2333		2695
2334	void	2696	void
2335	ev_feed_signal (int signum) EV_THROW	2697	ev_feed_signal (int signum) EV_NOEXCEPT
2336	{	2698	{
2337	#if EV_MULTIPLICITY	2699	#if EV_MULTIPLICITY
2338	EV_P;	2700	EV_P;
2339	ECB_MEMORY_FENCE_ACQUIRE;	2701	ECB_MEMORY_FENCE_ACQUIRE;
2340	EV_A = signals [signum - 1].loop;	2702	EV_A = signals [signum - 1].loop;
…		…
2355	#endif	2717	#endif
2356		2718
2357	ev_feed_signal (signum);	2719	ev_feed_signal (signum);
2358	}	2720	}
2359		2721
2360	void noinline	2722	ecb_noinline
		2723	void
2361	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2724	ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2362	{	2725	{
2363	WL w;	2726	WL w;
2364		2727
2365	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2728	if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2366	return;	2729	return;
2367		2730
2368	--signum;	2731	--signum;
2369		2732
2370	#if EV_MULTIPLICITY	2733	#if EV_MULTIPLICITY
2371	/* 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 */
2372	/* or, likely more useful, feeding a signal nobody is waiting for */	2735	/* or, likely more useful, feeding a signal nobody is waiting for */
2373		2736
2374	if (expect_false (signals [signum].loop != EV_A))	2737	if (ecb_expect_false (signals [signum].loop != EV_A))
2375	return;	2738	return;
2376	#endif	2739	#endif
2377		2740
2378	signals [signum].pending = 0;	2741	signals [signum].pending = 0;
2379	ECB_MEMORY_FENCE_RELEASE;	2742	ECB_MEMORY_FENCE_RELEASE;
…		…
2475	# include "ev_kqueue.c"	2838	# include "ev_kqueue.c"
2476	#endif	2839	#endif
2477	#if EV_USE_EPOLL	2840	#if EV_USE_EPOLL
2478	# include "ev_epoll.c"	2841	# include "ev_epoll.c"
2479	#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
2480	#if EV_USE_POLL	2849	#if EV_USE_POLL
2481	# include "ev_poll.c"	2850	# include "ev_poll.c"
2482	#endif	2851	#endif
2483	#if EV_USE_SELECT	2852	#if EV_USE_SELECT
2484	# include "ev_select.c"	2853	# include "ev_select.c"
2485	#endif	2854	#endif
2486		2855
2487	int ecb_cold	2856	ecb_cold int
2488	ev_version_major (void) EV_THROW	2857	ev_version_major (void) EV_NOEXCEPT
2489	{	2858	{
2490	return EV_VERSION_MAJOR;	2859	return EV_VERSION_MAJOR;
2491	}	2860	}
2492		2861
2493	int ecb_cold	2862	ecb_cold int
2494	ev_version_minor (void) EV_THROW	2863	ev_version_minor (void) EV_NOEXCEPT
2495	{	2864	{
2496	return EV_VERSION_MINOR;	2865	return EV_VERSION_MINOR;
2497	}	2866	}
2498		2867
2499	/* 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 */
2500	int inline_size ecb_cold	2869	inline_size ecb_cold int
2501	enable_secure (void)	2870	enable_secure (void)
2502	{	2871	{
2503	#ifdef _WIN32	2872	#ifdef _WIN32
2504	return 0;	2873	return 0;
2505	#else	2874	#else
2506	return getuid () != geteuid ()	2875	return getuid () != geteuid ()
2507	|| getgid () != getegid ();	2876	|| getgid () != getegid ();
2508	#endif	2877	#endif
2509	}	2878	}
2510		2879
2511	unsigned int ecb_cold	2880	ecb_cold
		2881	unsigned int
2512	ev_supported_backends (void) EV_THROW	2882	ev_supported_backends (void) EV_NOEXCEPT
2513	{	2883	{
2514	unsigned int flags = 0;	2884	unsigned int flags = 0;
2515		2885
2516	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2886	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2517	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2887	if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2518	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;
2519	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;	2891	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2520	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2892	if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2521		2893
2522	return flags;	2894	return flags;
2523	}	2895	}
2524		2896
2525	unsigned int ecb_cold	2897	ecb_cold
		2898	unsigned int
2526	ev_recommended_backends (void) EV_THROW	2899	ev_recommended_backends (void) EV_NOEXCEPT
2527	{	2900	{
2528	unsigned int flags = ev_supported_backends ();	2901	unsigned int flags = ev_supported_backends ();
2529		2902
2530	#ifndef __NetBSD__	2903	#ifndef __NetBSD__
2531	/* kqueue is borked on everything but netbsd apparently */	2904	/* kqueue is borked on everything but netbsd apparently */
…		…
2539	#endif	2912	#endif
2540	#ifdef __FreeBSD__	2913	#ifdef __FreeBSD__
2541	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) */
2542	#endif	2915	#endif
2543		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
2544	return flags;	2926	return flags;
2545	}	2927	}
2546		2928
2547	unsigned int ecb_cold	2929	ecb_cold
		2930	unsigned int
2548	ev_embeddable_backends (void) EV_THROW	2931	ev_embeddable_backends (void) EV_NOEXCEPT
2549	{	2932	{
2550	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2933	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2551		2934
2552	/* 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 */
2553	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 */
2554	flags &= ~EVBACKEND_EPOLL;	2937	flags &= ~EVBACKEND_EPOLL;
2555		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
2556	return flags;	2946	return flags;
2557	}	2947	}
2558		2948
2559	unsigned int	2949	unsigned int
2560	ev_backend (EV_P) EV_THROW	2950	ev_backend (EV_P) EV_NOEXCEPT
2561	{	2951	{
2562	return backend;	2952	return backend;
2563	}	2953	}
2564		2954
2565	#if EV_FEATURE_API	2955	#if EV_FEATURE_API
2566	unsigned int	2956	unsigned int
2567	ev_iteration (EV_P) EV_THROW	2957	ev_iteration (EV_P) EV_NOEXCEPT
2568	{	2958	{
2569	return loop_count;	2959	return loop_count;
2570	}	2960	}
2571		2961
2572	unsigned int	2962	unsigned int
2573	ev_depth (EV_P) EV_THROW	2963	ev_depth (EV_P) EV_NOEXCEPT
2574	{	2964	{
2575	return loop_depth;	2965	return loop_depth;
2576	}	2966	}
2577		2967
2578	void	2968	void
2579	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
2580	{	2970	{
2581	io_blocktime = interval;	2971	io_blocktime = interval;
2582	}	2972	}
2583		2973
2584	void	2974	void
2585	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
2586	{	2976	{
2587	timeout_blocktime = interval;	2977	timeout_blocktime = interval;
2588	}	2978	}
2589		2979
2590	void	2980	void
2591	ev_set_userdata (EV_P_ void *data) EV_THROW	2981	ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2592	{	2982	{
2593	userdata = data;	2983	userdata = data;
2594	}	2984	}
2595		2985
2596	void *	2986	void *
2597	ev_userdata (EV_P) EV_THROW	2987	ev_userdata (EV_P) EV_NOEXCEPT
2598	{	2988	{
2599	return userdata;	2989	return userdata;
2600	}	2990	}
2601		2991
2602	void	2992	void
2603	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
2604	{	2994	{
2605	invoke_cb = invoke_pending_cb;	2995	invoke_cb = invoke_pending_cb;
2606	}	2996	}
2607		2997
2608	void	2998	void
2609	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
2610	{	3000	{
2611	release_cb = release;	3001	release_cb = release;
2612	acquire_cb = acquire;	3002	acquire_cb = acquire;
2613	}	3003	}
2614	#endif	3004	#endif
2615		3005
2616	/* initialise a loop structure, must be zero-initialised */	3006	/* initialise a loop structure, must be zero-initialised */
2617	static void noinline ecb_cold	3007	ecb_noinline ecb_cold
		3008	static void
2618	loop_init (EV_P_ unsigned int flags) EV_THROW	3009	loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2619	{	3010	{
2620	if (!backend)	3011	if (!backend)
2621	{	3012	{
2622	origflags = flags;	3013	origflags = flags;
2623		3014
…		…
2681		3072
2682	if (!(flags & EVBACKEND_MASK))	3073	if (!(flags & EVBACKEND_MASK))
2683	flags |= ev_recommended_backends ();	3074	flags |= ev_recommended_backends ();
2684		3075
2685	#if EV_USE_IOCP	3076	#if EV_USE_IOCP
2686	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);	3077	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2687	#endif	3078	#endif
2688	#if EV_USE_PORT	3079	#if EV_USE_PORT
2689	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	3080	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2690	#endif	3081	#endif
2691	#if EV_USE_KQUEUE	3082	#if EV_USE_KQUEUE
2692	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);
2693	#endif	3090	#endif
2694	#if EV_USE_EPOLL	3091	#if EV_USE_EPOLL
2695	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);	3092	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2696	#endif	3093	#endif
2697	#if EV_USE_POLL	3094	#if EV_USE_POLL
2698	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);	3095	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2699	#endif	3096	#endif
2700	#if EV_USE_SELECT	3097	#if EV_USE_SELECT
2701	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	3098	if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2702	#endif	3099	#endif
2703		3100
2704	ev_prepare_init (&pending_w, pendingcb);	3101	ev_prepare_init (&pending_w, pendingcb);
2705		3102
2706	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3103	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
…		…
2709	#endif	3106	#endif
2710	}	3107	}
2711	}	3108	}
2712		3109
2713	/* free up a loop structure */	3110	/* free up a loop structure */
2714	void ecb_cold	3111	ecb_cold
		3112	void
2715	ev_loop_destroy (EV_P)	3113	ev_loop_destroy (EV_P)
2716	{	3114	{
2717	int i;	3115	int i;
2718		3116
2719	#if EV_MULTIPLICITY	3117	#if EV_MULTIPLICITY
…		…
2722	return;	3120	return;
2723	#endif	3121	#endif
2724		3122
2725	#if EV_CLEANUP_ENABLE	3123	#if EV_CLEANUP_ENABLE
2726	/* queue cleanup watchers (and execute them) */	3124	/* queue cleanup watchers (and execute them) */
2727	if (expect_false (cleanupcnt))	3125	if (ecb_expect_false (cleanupcnt))
2728	{	3126	{
2729	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);	3127	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2730	EV_INVOKE_PENDING;	3128	EV_INVOKE_PENDING;
2731	}	3129	}
2732	#endif	3130	#endif
…		…
2760		3158
2761	if (backend_fd >= 0)	3159	if (backend_fd >= 0)
2762	close (backend_fd);	3160	close (backend_fd);
2763		3161
2764	#if EV_USE_IOCP	3162	#if EV_USE_IOCP
2765	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);	3163	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2766	#endif	3164	#endif
2767	#if EV_USE_PORT	3165	#if EV_USE_PORT
2768	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	3166	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2769	#endif	3167	#endif
2770	#if EV_USE_KQUEUE	3168	#if EV_USE_KQUEUE
2771	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);
2772	#endif	3176	#endif
2773	#if EV_USE_EPOLL	3177	#if EV_USE_EPOLL
2774	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);	3178	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2775	#endif	3179	#endif
2776	#if EV_USE_POLL	3180	#if EV_USE_POLL
2777	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);	3181	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2778	#endif	3182	#endif
2779	#if EV_USE_SELECT	3183	#if EV_USE_SELECT
2780	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	3184	if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2781	#endif	3185	#endif
2782		3186
2783	for (i = NUMPRI; i--; )	3187	for (i = NUMPRI; i--; )
2784	{	3188	{
2785	array_free (pending, [i]);	3189	array_free (pending, [i]);
…		…
2827		3231
2828	inline_size void	3232	inline_size void
2829	loop_fork (EV_P)	3233	loop_fork (EV_P)
2830	{	3234	{
2831	#if EV_USE_PORT	3235	#if EV_USE_PORT
2832	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	3236	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2833	#endif	3237	#endif
2834	#if EV_USE_KQUEUE	3238	#if EV_USE_KQUEUE
2835	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);
2836	#endif	3246	#endif
2837	#if EV_USE_EPOLL	3247	#if EV_USE_EPOLL
2838	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	3248	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2839	#endif	3249	#endif
2840	#if EV_USE_INOTIFY	3250	#if EV_USE_INOTIFY
2841	infy_fork (EV_A);	3251	infy_fork (EV_A);
2842	#endif	3252	#endif
2843		3253
2844	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3254	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2845	if (ev_is_active (&pipe_w))	3255	if (ev_is_active (&pipe_w) && postfork != 2)
2846	{	3256	{
2847	/* 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 */
2848		3258
2849	ev_ref (EV_A);	3259	ev_ref (EV_A);
2850	ev_io_stop (EV_A_ &pipe_w);	3260	ev_io_stop (EV_A_ &pipe_w);
…		…
2861	postfork = 0;	3271	postfork = 0;
2862	}	3272	}
2863		3273
2864	#if EV_MULTIPLICITY	3274	#if EV_MULTIPLICITY
2865		3275
		3276	ecb_cold
2866	struct ev_loop * ecb_cold	3277	struct ev_loop *
2867	ev_loop_new (unsigned int flags) EV_THROW	3278	ev_loop_new (unsigned int flags) EV_NOEXCEPT
2868	{	3279	{
2869	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3280	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2870		3281
2871	memset (EV_A, 0, sizeof (struct ev_loop));	3282	memset (EV_A, 0, sizeof (struct ev_loop));
2872	loop_init (EV_A_ flags);	3283	loop_init (EV_A_ flags);
…		…
2879	}	3290	}
2880		3291
2881	#endif /* multiplicity */	3292	#endif /* multiplicity */
2882		3293
2883	#if EV_VERIFY	3294	#if EV_VERIFY
2884	static void noinline ecb_cold	3295	ecb_noinline ecb_cold
		3296	static void
2885	verify_watcher (EV_P_ W w)	3297	verify_watcher (EV_P_ W w)
2886	{	3298	{
2887	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));
2888		3300
2889	if (w->pending)	3301	if (w->pending)
2890	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));
2891	}	3303	}
2892		3304
2893	static void noinline ecb_cold	3305	ecb_noinline ecb_cold
		3306	static void
2894	verify_heap (EV_P_ ANHE *heap, int N)	3307	verify_heap (EV_P_ ANHE *heap, int N)
2895	{	3308	{
2896	int i;	3309	int i;
2897		3310
2898	for (i = HEAP0; i < N + HEAP0; ++i)	3311	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2903		3316
2904	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3317	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2905	}	3318	}
2906	}	3319	}
2907		3320
2908	static void noinline ecb_cold	3321	ecb_noinline ecb_cold
		3322	static void
2909	array_verify (EV_P_ W *ws, int cnt)	3323	array_verify (EV_P_ W *ws, int cnt)
2910	{	3324	{
2911	while (cnt--)	3325	while (cnt--)
2912	{	3326	{
2913	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3327	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2916	}	3330	}
2917	#endif	3331	#endif
2918		3332
2919	#if EV_FEATURE_API	3333	#if EV_FEATURE_API
2920	void ecb_cold	3334	void ecb_cold
2921	ev_verify (EV_P) EV_THROW	3335	ev_verify (EV_P) EV_NOEXCEPT
2922	{	3336	{
2923	#if EV_VERIFY	3337	#if EV_VERIFY
2924	int i;	3338	int i;
2925	WL w, w2;	3339	WL w, w2;
2926		3340
…		…
3002	#endif	3416	#endif
3003	}	3417	}
3004	#endif	3418	#endif
3005		3419
3006	#if EV_MULTIPLICITY	3420	#if EV_MULTIPLICITY
		3421	ecb_cold
3007	struct ev_loop * ecb_cold	3422	struct ev_loop *
3008	#else	3423	#else
3009	int	3424	int
3010	#endif	3425	#endif
3011	ev_default_loop (unsigned int flags) EV_THROW	3426	ev_default_loop (unsigned int flags) EV_NOEXCEPT
3012	{	3427	{
3013	if (!ev_default_loop_ptr)	3428	if (!ev_default_loop_ptr)
3014	{	3429	{
3015	#if EV_MULTIPLICITY	3430	#if EV_MULTIPLICITY
3016	EV_P = ev_default_loop_ptr = &default_loop_struct;	3431	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
3035		3450
3036	return ev_default_loop_ptr;	3451	return ev_default_loop_ptr;
3037	}	3452	}
3038		3453
3039	void	3454	void
3040	ev_loop_fork (EV_P) EV_THROW	3455	ev_loop_fork (EV_P) EV_NOEXCEPT
3041	{	3456	{
3042	postfork = 1;	3457	postfork = 1;
3043	}	3458	}
3044		3459
3045	/*****************************************************************************/	3460	/*****************************************************************************/
…		…
3049	{	3464	{
3050	EV_CB_INVOKE ((W)w, revents);	3465	EV_CB_INVOKE ((W)w, revents);
3051	}	3466	}
3052		3467
3053	unsigned int	3468	unsigned int
3054	ev_pending_count (EV_P) EV_THROW	3469	ev_pending_count (EV_P) EV_NOEXCEPT
3055	{	3470	{
3056	int pri;	3471	int pri;
3057	unsigned int count = 0;	3472	unsigned int count = 0;
3058		3473
3059	for (pri = NUMPRI; pri--; )	3474	for (pri = NUMPRI; pri--; )
3060	count += pendingcnt [pri];	3475	count += pendingcnt [pri];
3061		3476
3062	return count;	3477	return count;
3063	}	3478	}
3064		3479
3065	void noinline	3480	ecb_noinline
		3481	void
3066	ev_invoke_pending (EV_P)	3482	ev_invoke_pending (EV_P)
3067	{	3483	{
3068	pendingpri = NUMPRI;	3484	pendingpri = NUMPRI;
3069		3485
3070	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3486	do
3071	{	3487	{
3072	--pendingpri;	3488	--pendingpri;
3073		3489
		3490	/* pendingpri possibly gets modified in the inner loop */
3074	while (pendingcnt [pendingpri])	3491	while (pendingcnt [pendingpri])
3075	{	3492	{
3076	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];	3493	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3077		3494
3078	p->w->pending = 0;	3495	p->w->pending = 0;
3079	EV_CB_INVOKE (p->w, p->events);	3496	EV_CB_INVOKE (p->w, p->events);
3080	EV_FREQUENT_CHECK;	3497	EV_FREQUENT_CHECK;
3081	}	3498	}
3082	}	3499	}
		3500	while (pendingpri);
3083	}	3501	}
3084		3502
3085	#if EV_IDLE_ENABLE	3503	#if EV_IDLE_ENABLE
3086	/* make idle watchers pending. this handles the "call-idle */	3504	/* make idle watchers pending. this handles the "call-idle */
3087	/* only when higher priorities are idle" logic */	3505	/* only when higher priorities are idle" logic */
3088	inline_size void	3506	inline_size void
3089	idle_reify (EV_P)	3507	idle_reify (EV_P)
3090	{	3508	{
3091	if (expect_false (idleall))	3509	if (ecb_expect_false (idleall))
3092	{	3510	{
3093	int pri;	3511	int pri;
3094		3512
3095	for (pri = NUMPRI; pri--; )	3513	for (pri = NUMPRI; pri--; )
3096	{	3514	{
…		…
3145	}	3563	}
3146	}	3564	}
3147		3565
3148	#if EV_PERIODIC_ENABLE	3566	#if EV_PERIODIC_ENABLE
3149		3567
3150	static void noinline	3568	ecb_noinline
		3569	static void
3151	periodic_recalc (EV_P_ ev_periodic *w)	3570	periodic_recalc (EV_P_ ev_periodic *w)
3152	{	3571	{
3153	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3572	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3154	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);
3155		3574
…		…
3157	while (at <= ev_rt_now)	3576	while (at <= ev_rt_now)
3158	{	3577	{
3159	ev_tstamp nat = at + w->interval;	3578	ev_tstamp nat = at + w->interval;
3160		3579
3161	/* when resolution fails us, we use ev_rt_now */	3580	/* when resolution fails us, we use ev_rt_now */
3162	if (expect_false (nat == at))	3581	if (ecb_expect_false (nat == at))
3163	{	3582	{
3164	at = ev_rt_now;	3583	at = ev_rt_now;
3165	break;	3584	break;
3166	}	3585	}
3167		3586
…		…
3213	}	3632	}
3214	}	3633	}
3215		3634
3216	/* simply recalculate all periodics */	3635	/* simply recalculate all periodics */
3217	/* 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? */
3218	static void noinline ecb_cold	3637	ecb_noinline ecb_cold
		3638	static void
3219	periodics_reschedule (EV_P)	3639	periodics_reschedule (EV_P)
3220	{	3640	{
3221	int i;	3641	int i;
3222		3642
3223	/* adjust periodics after time jump */	3643	/* adjust periodics after time jump */
…		…
3236	reheap (periodics, periodiccnt);	3656	reheap (periodics, periodiccnt);
3237	}	3657	}
3238	#endif	3658	#endif
3239		3659
3240	/* adjust all timers by a given offset */	3660	/* adjust all timers by a given offset */
3241	static void noinline ecb_cold	3661	ecb_noinline ecb_cold
		3662	static void
3242	timers_reschedule (EV_P_ ev_tstamp adjust)	3663	timers_reschedule (EV_P_ ev_tstamp adjust)
3243	{	3664	{
3244	int i;	3665	int i;
3245		3666
3246	for (i = 0; i < timercnt; ++i)	3667	for (i = 0; i < timercnt; ++i)
…		…
3255	/* also detect if there was a timejump, and act accordingly */	3676	/* also detect if there was a timejump, and act accordingly */
3256	inline_speed void	3677	inline_speed void
3257	time_update (EV_P_ ev_tstamp max_block)	3678	time_update (EV_P_ ev_tstamp max_block)
3258	{	3679	{
3259	#if EV_USE_MONOTONIC	3680	#if EV_USE_MONOTONIC
3260	if (expect_true (have_monotonic))	3681	if (ecb_expect_true (have_monotonic))
3261	{	3682	{
3262	int i;	3683	int i;
3263	ev_tstamp odiff = rtmn_diff;	3684	ev_tstamp odiff = rtmn_diff;
3264		3685
3265	mn_now = get_clock ();	3686	mn_now = get_clock ();
3266		3687
3267	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	3688	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3268	/* interpolate in the meantime */	3689	/* interpolate in the meantime */
3269	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	3690	if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3270	{	3691	{
3271	ev_rt_now = rtmn_diff + mn_now;	3692	ev_rt_now = rtmn_diff + mn_now;
3272	return;	3693	return;
3273	}	3694	}
3274		3695
…		…
3288	ev_tstamp diff;	3709	ev_tstamp diff;
3289	rtmn_diff = ev_rt_now - mn_now;	3710	rtmn_diff = ev_rt_now - mn_now;
3290		3711
3291	diff = odiff - rtmn_diff;	3712	diff = odiff - rtmn_diff;
3292		3713
3293	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))	3714	if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3294	return; /* all is well */	3715	return; /* all is well */
3295		3716
3296	ev_rt_now = ev_time ();	3717	ev_rt_now = ev_time ();
3297	mn_now = get_clock ();	3718	mn_now = get_clock ();
3298	now_floor = mn_now;	3719	now_floor = mn_now;
…		…
3307	else	3728	else
3308	#endif	3729	#endif
3309	{	3730	{
3310	ev_rt_now = ev_time ();	3731	ev_rt_now = ev_time ();
3311		3732
3312	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))
3313	{	3734	{
3314	/* 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 */
3315	timers_reschedule (EV_A_ ev_rt_now - mn_now);	3736	timers_reschedule (EV_A_ ev_rt_now - mn_now);
3316	#if EV_PERIODIC_ENABLE	3737	#if EV_PERIODIC_ENABLE
3317	periodics_reschedule (EV_A);	3738	periodics_reschedule (EV_A);
…		…
3340	#if EV_VERIFY >= 2	3761	#if EV_VERIFY >= 2
3341	ev_verify (EV_A);	3762	ev_verify (EV_A);
3342	#endif	3763	#endif
3343		3764
3344	#ifndef _WIN32	3765	#ifndef _WIN32
3345	if (expect_false (curpid)) /* penalise the forking check even more */	3766	if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3346	if (expect_false (getpid () != curpid))	3767	if (ecb_expect_false (getpid () != curpid))
3347	{	3768	{
3348	curpid = getpid ();	3769	curpid = getpid ();
3349	postfork = 1;	3770	postfork = 1;
3350	}	3771	}
3351	#endif	3772	#endif
3352		3773
3353	#if EV_FORK_ENABLE	3774	#if EV_FORK_ENABLE
3354	/* we might have forked, so queue fork handlers */	3775	/* we might have forked, so queue fork handlers */
3355	if (expect_false (postfork))	3776	if (ecb_expect_false (postfork))
3356	if (forkcnt)	3777	if (forkcnt)
3357	{	3778	{
3358	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	3779	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3359	EV_INVOKE_PENDING;	3780	EV_INVOKE_PENDING;
3360	}	3781	}
3361	#endif	3782	#endif
3362		3783
3363	#if EV_PREPARE_ENABLE	3784	#if EV_PREPARE_ENABLE
3364	/* queue prepare watchers (and execute them) */	3785	/* queue prepare watchers (and execute them) */
3365	if (expect_false (preparecnt))	3786	if (ecb_expect_false (preparecnt))
3366	{	3787	{
3367	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	3788	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3368	EV_INVOKE_PENDING;	3789	EV_INVOKE_PENDING;
3369	}	3790	}
3370	#endif	3791	#endif
3371		3792
3372	if (expect_false (loop_done))	3793	if (ecb_expect_false (loop_done))
3373	break;	3794	break;
3374		3795
3375	/* we might have forked, so reify kernel state if necessary */	3796	/* we might have forked, so reify kernel state if necessary */
3376	if (expect_false (postfork))	3797	if (ecb_expect_false (postfork))
3377	loop_fork (EV_A);	3798	loop_fork (EV_A);
3378		3799
3379	/* update fd-related kernel structures */	3800	/* update fd-related kernel structures */
3380	fd_reify (EV_A);	3801	fd_reify (EV_A);
3381		3802
…		…
3393	/* from now on, we want a pipe-wake-up */	3814	/* from now on, we want a pipe-wake-up */
3394	pipe_write_wanted = 1;	3815	pipe_write_wanted = 1;
3395		3816
3396	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 */
3397		3818
3398	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3819	if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3399	{	3820	{
3400	waittime = MAX_BLOCKTIME;	3821	waittime = MAX_BLOCKTIME;
3401		3822
3402	if (timercnt)	3823	if (timercnt)
3403	{	3824	{
…		…
3412	if (waittime > to) waittime = to;	3833	if (waittime > to) waittime = to;
3413	}	3834	}
3414	#endif	3835	#endif
3415		3836
3416	/* don't let timeouts decrease the waittime below timeout_blocktime */	3837	/* don't let timeouts decrease the waittime below timeout_blocktime */
3417	if (expect_false (waittime < timeout_blocktime))	3838	if (ecb_expect_false (waittime < timeout_blocktime))
3418	waittime = timeout_blocktime;	3839	waittime = timeout_blocktime;
3419		3840
3420	/* 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 */
3421	/* to pass a minimum nonzero value to the backend */	3842	/* to pass a minimum nonzero value to the backend */
3422	if (expect_false (waittime < backend_mintime))	3843	if (ecb_expect_false (waittime < backend_mintime))
3423	waittime = backend_mintime;	3844	waittime = backend_mintime;
3424		3845
3425	/* extra check because io_blocktime is commonly 0 */	3846	/* extra check because io_blocktime is commonly 0 */
3426	if (expect_false (io_blocktime))	3847	if (ecb_expect_false (io_blocktime))
3427	{	3848	{
3428	sleeptime = io_blocktime - (mn_now - prev_mn_now);	3849	sleeptime = io_blocktime - (mn_now - prev_mn_now);
3429		3850
3430	if (sleeptime > waittime - backend_mintime)	3851	if (sleeptime > waittime - backend_mintime)
3431	sleeptime = waittime - backend_mintime;	3852	sleeptime = waittime - backend_mintime;
3432		3853
3433	if (expect_true (sleeptime > 0.))	3854	if (ecb_expect_true (sleeptime > 0.))
3434	{	3855	{
3435	ev_sleep (sleeptime);	3856	ev_sleep (sleeptime);
3436	waittime -= sleeptime;	3857	waittime -= sleeptime;
3437	}	3858	}
3438	}	3859	}
…		…
3452	{	3873	{
3453	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)));
3454	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3875	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3455	}	3876	}
3456		3877
3457
3458	/* update ev_rt_now, do magic */	3878	/* update ev_rt_now, do magic */
3459	time_update (EV_A_ waittime + sleeptime);	3879	time_update (EV_A_ waittime + sleeptime);
3460	}	3880	}
3461		3881
3462	/* queue pending timers and reschedule them */	3882	/* queue pending timers and reschedule them */
…		…
3470	idle_reify (EV_A);	3890	idle_reify (EV_A);
3471	#endif	3891	#endif
3472		3892
3473	#if EV_CHECK_ENABLE	3893	#if EV_CHECK_ENABLE
3474	/* queue check watchers, to be executed first */	3894	/* queue check watchers, to be executed first */
3475	if (expect_false (checkcnt))	3895	if (ecb_expect_false (checkcnt))
3476	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	3896	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3477	#endif	3897	#endif
3478		3898
3479	EV_INVOKE_PENDING;	3899	EV_INVOKE_PENDING;
3480	}	3900	}
3481	while (expect_true (	3901	while (ecb_expect_true (
3482	activecnt	3902	activecnt
3483	&& !loop_done	3903	&& !loop_done
3484	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))	3904	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3485	));	3905	));
3486		3906
…		…
3493		3913
3494	return activecnt;	3914	return activecnt;
3495	}	3915	}
3496		3916
3497	void	3917	void
3498	ev_break (EV_P_ int how) EV_THROW	3918	ev_break (EV_P_ int how) EV_NOEXCEPT
3499	{	3919	{
3500	loop_done = how;	3920	loop_done = how;
3501	}	3921	}
3502		3922
3503	void	3923	void
3504	ev_ref (EV_P) EV_THROW	3924	ev_ref (EV_P) EV_NOEXCEPT
3505	{	3925	{
3506	++activecnt;	3926	++activecnt;
3507	}	3927	}
3508		3928
3509	void	3929	void
3510	ev_unref (EV_P) EV_THROW	3930	ev_unref (EV_P) EV_NOEXCEPT
3511	{	3931	{
3512	--activecnt;	3932	--activecnt;
3513	}	3933	}
3514		3934
3515	void	3935	void
3516	ev_now_update (EV_P) EV_THROW	3936	ev_now_update (EV_P) EV_NOEXCEPT
3517	{	3937	{
3518	time_update (EV_A_ 1e100);	3938	time_update (EV_A_ 1e100);
3519	}	3939	}
3520		3940
3521	void	3941	void
3522	ev_suspend (EV_P) EV_THROW	3942	ev_suspend (EV_P) EV_NOEXCEPT
3523	{	3943	{
3524	ev_now_update (EV_A);	3944	ev_now_update (EV_A);
3525	}	3945	}
3526		3946
3527	void	3947	void
3528	ev_resume (EV_P) EV_THROW	3948	ev_resume (EV_P) EV_NOEXCEPT
3529	{	3949	{
3530	ev_tstamp mn_prev = mn_now;	3950	ev_tstamp mn_prev = mn_now;
3531		3951
3532	ev_now_update (EV_A);	3952	ev_now_update (EV_A);
3533	timers_reschedule (EV_A_ mn_now - mn_prev);	3953	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3550	inline_size void	3970	inline_size void
3551	wlist_del (WL *head, WL elem)	3971	wlist_del (WL *head, WL elem)
3552	{	3972	{
3553	while (*head)	3973	while (*head)
3554	{	3974	{
3555	if (expect_true (*head == elem))	3975	if (ecb_expect_true (*head == elem))
3556	{	3976	{
3557	*head = elem->next;	3977	*head = elem->next;
3558	break;	3978	break;
3559	}	3979	}
3560		3980
…		…
3572	w->pending = 0;	3992	w->pending = 0;
3573	}	3993	}
3574	}	3994	}
3575		3995
3576	int	3996	int
3577	ev_clear_pending (EV_P_ void *w) EV_THROW	3997	ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3578	{	3998	{
3579	W w_ = (W)w;	3999	W w_ = (W)w;
3580	int pending = w_->pending;	4000	int pending = w_->pending;
3581		4001
3582	if (expect_true (pending))	4002	if (ecb_expect_true (pending))
3583	{	4003	{
3584	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	4004	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3585	p->w = (W)&pending_w;	4005	p->w = (W)&pending_w;
3586	w_->pending = 0;	4006	w_->pending = 0;
3587	return p->events;	4007	return p->events;
…		…
3614	w->active = 0;	4034	w->active = 0;
3615	}	4035	}
3616		4036
3617	/*****************************************************************************/	4037	/*****************************************************************************/
3618		4038
3619	void noinline	4039	ecb_noinline
		4040	void
3620	ev_io_start (EV_P_ ev_io *w) EV_THROW	4041	ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3621	{	4042	{
3622	int fd = w->fd;	4043	int fd = w->fd;
3623		4044
3624	if (expect_false (ev_is_active (w)))	4045	if (ecb_expect_false (ev_is_active (w)))
3625	return;	4046	return;
3626		4047
3627	assert (("libev: ev_io_start called with negative fd", fd >= 0));	4048	assert (("libev: ev_io_start called with negative fd", fd >= 0));
3628	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))));
3629		4050
		4051	#if EV_VERIFY >= 2
		4052	assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
		4053	#endif
3630	EV_FREQUENT_CHECK;	4054	EV_FREQUENT_CHECK;
3631		4055
3632	ev_start (EV_A_ (W)w, 1);	4056	ev_start (EV_A_ (W)w, 1);
3633	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	4057	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3634	wlist_add (&anfds[fd].head, (WL)w);	4058	wlist_add (&anfds[fd].head, (WL)w);
3635		4059
3636	/* common bug, apparently */	4060	/* common bug, apparently */
3637	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));
3638		4062
…		…
3640	w->events &= ~EV__IOFDSET;	4064	w->events &= ~EV__IOFDSET;
3641		4065
3642	EV_FREQUENT_CHECK;	4066	EV_FREQUENT_CHECK;
3643	}	4067	}
3644		4068
3645	void noinline	4069	ecb_noinline
		4070	void
3646	ev_io_stop (EV_P_ ev_io *w) EV_THROW	4071	ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3647	{	4072	{
3648	clear_pending (EV_A_ (W)w);	4073	clear_pending (EV_A_ (W)w);
3649	if (expect_false (!ev_is_active (w)))	4074	if (ecb_expect_false (!ev_is_active (w)))
3650	return;	4075	return;
3651		4076
3652	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));
3653		4078
		4079	#if EV_VERIFY >= 2
		4080	assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
		4081	#endif
3654	EV_FREQUENT_CHECK;	4082	EV_FREQUENT_CHECK;
3655		4083
3656	wlist_del (&anfds[w->fd].head, (WL)w);	4084	wlist_del (&anfds[w->fd].head, (WL)w);
3657	ev_stop (EV_A_ (W)w);	4085	ev_stop (EV_A_ (W)w);
3658		4086
3659	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	4087	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3660		4088
3661	EV_FREQUENT_CHECK;	4089	EV_FREQUENT_CHECK;
3662	}	4090	}
3663		4091
3664	void noinline	4092	ecb_noinline
		4093	void
3665	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	4094	ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3666	{	4095	{
3667	if (expect_false (ev_is_active (w)))	4096	if (ecb_expect_false (ev_is_active (w)))
3668	return;	4097	return;
3669		4098
3670	ev_at (w) += mn_now;	4099	ev_at (w) += mn_now;
3671		4100
3672	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.));
3673		4102
3674	EV_FREQUENT_CHECK;	4103	EV_FREQUENT_CHECK;
3675		4104
3676	++timercnt;	4105	++timercnt;
3677	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	4106	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3678	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	4107	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3679	ANHE_w (timers [ev_active (w)]) = (WT)w;	4108	ANHE_w (timers [ev_active (w)]) = (WT)w;
3680	ANHE_at_cache (timers [ev_active (w)]);	4109	ANHE_at_cache (timers [ev_active (w)]);
3681	upheap (timers, ev_active (w));	4110	upheap (timers, ev_active (w));
3682		4111
3683	EV_FREQUENT_CHECK;	4112	EV_FREQUENT_CHECK;
3684		4113
3685	/*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));*/
3686	}	4115	}
3687		4116
3688	void noinline	4117	ecb_noinline
		4118	void
3689	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	4119	ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3690	{	4120	{
3691	clear_pending (EV_A_ (W)w);	4121	clear_pending (EV_A_ (W)w);
3692	if (expect_false (!ev_is_active (w)))	4122	if (ecb_expect_false (!ev_is_active (w)))
3693	return;	4123	return;
3694		4124
3695	EV_FREQUENT_CHECK;	4125	EV_FREQUENT_CHECK;
3696		4126
3697	{	4127	{
…		…
3699		4129
3700	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));
3701		4131
3702	--timercnt;	4132	--timercnt;
3703		4133
3704	if (expect_true (active < timercnt + HEAP0))	4134	if (ecb_expect_true (active < timercnt + HEAP0))
3705	{	4135	{
3706	timers [active] = timers [timercnt + HEAP0];	4136	timers [active] = timers [timercnt + HEAP0];
3707	adjustheap (timers, timercnt, active);	4137	adjustheap (timers, timercnt, active);
3708	}	4138	}
3709	}	4139	}
…		…
3713	ev_stop (EV_A_ (W)w);	4143	ev_stop (EV_A_ (W)w);
3714		4144
3715	EV_FREQUENT_CHECK;	4145	EV_FREQUENT_CHECK;
3716	}	4146	}
3717		4147
3718	void noinline	4148	ecb_noinline
		4149	void
3719	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	4150	ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3720	{	4151	{
3721	EV_FREQUENT_CHECK;	4152	EV_FREQUENT_CHECK;
3722		4153
3723	clear_pending (EV_A_ (W)w);	4154	clear_pending (EV_A_ (W)w);
3724		4155
…		…
3741		4172
3742	EV_FREQUENT_CHECK;	4173	EV_FREQUENT_CHECK;
3743	}	4174	}
3744		4175
3745	ev_tstamp	4176	ev_tstamp
3746	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW	4177	ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3747	{	4178	{
3748	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	4179	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3749	}	4180	}
3750		4181
3751	#if EV_PERIODIC_ENABLE	4182	#if EV_PERIODIC_ENABLE
3752	void noinline	4183	ecb_noinline
		4184	void
3753	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	4185	ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3754	{	4186	{
3755	if (expect_false (ev_is_active (w)))	4187	if (ecb_expect_false (ev_is_active (w)))
3756	return;	4188	return;
3757		4189
3758	if (w->reschedule_cb)	4190	if (w->reschedule_cb)
3759	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	4191	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3760	else if (w->interval)	4192	else if (w->interval)
…		…
3767		4199
3768	EV_FREQUENT_CHECK;	4200	EV_FREQUENT_CHECK;
3769		4201
3770	++periodiccnt;	4202	++periodiccnt;
3771	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);	4203	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3772	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	4204	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3773	ANHE_w (periodics [ev_active (w)]) = (WT)w;	4205	ANHE_w (periodics [ev_active (w)]) = (WT)w;
3774	ANHE_at_cache (periodics [ev_active (w)]);	4206	ANHE_at_cache (periodics [ev_active (w)]);
3775	upheap (periodics, ev_active (w));	4207	upheap (periodics, ev_active (w));
3776		4208
3777	EV_FREQUENT_CHECK;	4209	EV_FREQUENT_CHECK;
3778		4210
3779	/*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));*/
3780	}	4212	}
3781		4213
3782	void noinline	4214	ecb_noinline
		4215	void
3783	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4216	ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3784	{	4217	{
3785	clear_pending (EV_A_ (W)w);	4218	clear_pending (EV_A_ (W)w);
3786	if (expect_false (!ev_is_active (w)))	4219	if (ecb_expect_false (!ev_is_active (w)))
3787	return;	4220	return;
3788		4221
3789	EV_FREQUENT_CHECK;	4222	EV_FREQUENT_CHECK;
3790		4223
3791	{	4224	{
…		…
3793		4226
3794	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));
3795		4228
3796	--periodiccnt;	4229	--periodiccnt;
3797		4230
3798	if (expect_true (active < periodiccnt + HEAP0))	4231	if (ecb_expect_true (active < periodiccnt + HEAP0))
3799	{	4232	{
3800	periodics [active] = periodics [periodiccnt + HEAP0];	4233	periodics [active] = periodics [periodiccnt + HEAP0];
3801	adjustheap (periodics, periodiccnt, active);	4234	adjustheap (periodics, periodiccnt, active);
3802	}	4235	}
3803	}	4236	}
…		…
3805	ev_stop (EV_A_ (W)w);	4238	ev_stop (EV_A_ (W)w);
3806		4239
3807	EV_FREQUENT_CHECK;	4240	EV_FREQUENT_CHECK;
3808	}	4241	}
3809		4242
3810	void noinline	4243	ecb_noinline
		4244	void
3811	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4245	ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3812	{	4246	{
3813	/* TODO: use adjustheap and recalculation */	4247	/* TODO: use adjustheap and recalculation */
3814	ev_periodic_stop (EV_A_ w);	4248	ev_periodic_stop (EV_A_ w);
3815	ev_periodic_start (EV_A_ w);	4249	ev_periodic_start (EV_A_ w);
3816	}	4250	}
…		…
3820	# define SA_RESTART 0	4254	# define SA_RESTART 0
3821	#endif	4255	#endif
3822		4256
3823	#if EV_SIGNAL_ENABLE	4257	#if EV_SIGNAL_ENABLE
3824		4258
3825	void noinline	4259	ecb_noinline
		4260	void
3826	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4261	ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3827	{	4262	{
3828	if (expect_false (ev_is_active (w)))	4263	if (ecb_expect_false (ev_is_active (w)))
3829	return;	4264	return;
3830		4265
3831	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));
3832		4267
3833	#if EV_MULTIPLICITY	4268	#if EV_MULTIPLICITY
…		…
3902	}	4337	}
3903		4338
3904	EV_FREQUENT_CHECK;	4339	EV_FREQUENT_CHECK;
3905	}	4340	}
3906		4341
3907	void noinline	4342	ecb_noinline
		4343	void
3908	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4344	ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3909	{	4345	{
3910	clear_pending (EV_A_ (W)w);	4346	clear_pending (EV_A_ (W)w);
3911	if (expect_false (!ev_is_active (w)))	4347	if (ecb_expect_false (!ev_is_active (w)))
3912	return;	4348	return;
3913		4349
3914	EV_FREQUENT_CHECK;	4350	EV_FREQUENT_CHECK;
3915		4351
3916	wlist_del (&signals [w->signum - 1].head, (WL)w);	4352	wlist_del (&signals [w->signum - 1].head, (WL)w);
…		…
3944	#endif	4380	#endif
3945		4381
3946	#if EV_CHILD_ENABLE	4382	#if EV_CHILD_ENABLE
3947		4383
3948	void	4384	void
3949	ev_child_start (EV_P_ ev_child *w) EV_THROW	4385	ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3950	{	4386	{
3951	#if EV_MULTIPLICITY	4387	#if EV_MULTIPLICITY
3952	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));
3953	#endif	4389	#endif
3954	if (expect_false (ev_is_active (w)))	4390	if (ecb_expect_false (ev_is_active (w)))
3955	return;	4391	return;
3956		4392
3957	EV_FREQUENT_CHECK;	4393	EV_FREQUENT_CHECK;
3958		4394
3959	ev_start (EV_A_ (W)w, 1);	4395	ev_start (EV_A_ (W)w, 1);
…		…
3961		4397
3962	EV_FREQUENT_CHECK;	4398	EV_FREQUENT_CHECK;
3963	}	4399	}
3964		4400
3965	void	4401	void
3966	ev_child_stop (EV_P_ ev_child *w) EV_THROW	4402	ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3967	{	4403	{
3968	clear_pending (EV_A_ (W)w);	4404	clear_pending (EV_A_ (W)w);
3969	if (expect_false (!ev_is_active (w)))	4405	if (ecb_expect_false (!ev_is_active (w)))
3970	return;	4406	return;
3971		4407
3972	EV_FREQUENT_CHECK;	4408	EV_FREQUENT_CHECK;
3973		4409
3974	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);	4410	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
…		…
3988		4424
3989	#define DEF_STAT_INTERVAL 5.0074891	4425	#define DEF_STAT_INTERVAL 5.0074891
3990	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4426	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3991	#define MIN_STAT_INTERVAL 0.1074891	4427	#define MIN_STAT_INTERVAL 0.1074891
3992		4428
3993	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);
3994		4430
3995	#if EV_USE_INOTIFY	4431	#if EV_USE_INOTIFY
3996		4432
3997	/* 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 */
3998	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4434	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3999		4435
4000	static void noinline	4436	ecb_noinline
		4437	static void
4001	infy_add (EV_P_ ev_stat *w)	4438	infy_add (EV_P_ ev_stat *w)
4002	{	4439	{
4003	w->wd = inotify_add_watch (fs_fd, w->path,	4440	w->wd = inotify_add_watch (fs_fd, w->path,
4004	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4441	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4005	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO	4442	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
…		…
4069	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4506	if (ev_is_active (&w->timer)) ev_ref (EV_A);
4070	ev_timer_again (EV_A_ &w->timer);	4507	ev_timer_again (EV_A_ &w->timer);
4071	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4508	if (ev_is_active (&w->timer)) ev_unref (EV_A);
4072	}	4509	}
4073		4510
4074	static void noinline	4511	ecb_noinline
		4512	static void
4075	infy_del (EV_P_ ev_stat *w)	4513	infy_del (EV_P_ ev_stat *w)
4076	{	4514	{
4077	int slot;	4515	int slot;
4078	int wd = w->wd;	4516	int wd = w->wd;
4079		4517
…		…
4086		4524
4087	/* remove this watcher, if others are watching it, they will rearm */	4525	/* remove this watcher, if others are watching it, they will rearm */
4088	inotify_rm_watch (fs_fd, wd);	4526	inotify_rm_watch (fs_fd, wd);
4089	}	4527	}
4090		4528
4091	static void noinline	4529	ecb_noinline
		4530	static void
4092	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)
4093	{	4532	{
4094	if (slot < 0)	4533	if (slot < 0)
4095	/* overflow, need to check for all hash slots */	4534	/* overflow, need to check for all hash slots */
4096	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4535	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
4132	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4571	infy_wd (EV_A_ ev->wd, ev->wd, ev);
4133	ofs += sizeof (struct inotify_event) + ev->len;	4572	ofs += sizeof (struct inotify_event) + ev->len;
4134	}	4573	}
4135	}	4574	}
4136		4575
4137	inline_size void ecb_cold	4576	inline_size ecb_cold
		4577	void
4138	ev_check_2625 (EV_P)	4578	ev_check_2625 (EV_P)
4139	{	4579	{
4140	/* kernels < 2.6.25 are borked	4580	/* kernels < 2.6.25 are borked
4141	* 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
4142	*/	4582	*/
…		…
4232	#else	4672	#else
4233	# define EV_LSTAT(p,b) lstat (p, b)	4673	# define EV_LSTAT(p,b) lstat (p, b)
4234	#endif	4674	#endif
4235		4675
4236	void	4676	void
4237	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW	4677	ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4238	{	4678	{
4239	if (lstat (w->path, &w->attr) < 0)	4679	if (lstat (w->path, &w->attr) < 0)
4240	w->attr.st_nlink = 0;	4680	w->attr.st_nlink = 0;
4241	else if (!w->attr.st_nlink)	4681	else if (!w->attr.st_nlink)
4242	w->attr.st_nlink = 1;	4682	w->attr.st_nlink = 1;
4243	}	4683	}
4244		4684
4245	static void noinline	4685	ecb_noinline
		4686	static void
4246	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4687	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4247	{	4688	{
4248	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4689	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4249		4690
4250	ev_statdata prev = w->attr;	4691	ev_statdata prev = w->attr;
…		…
4281	ev_feed_event (EV_A_ w, EV_STAT);	4722	ev_feed_event (EV_A_ w, EV_STAT);
4282	}	4723	}
4283	}	4724	}
4284		4725
4285	void	4726	void
4286	ev_stat_start (EV_P_ ev_stat *w) EV_THROW	4727	ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4287	{	4728	{
4288	if (expect_false (ev_is_active (w)))	4729	if (ecb_expect_false (ev_is_active (w)))
4289	return;	4730	return;
4290		4731
4291	ev_stat_stat (EV_A_ w);	4732	ev_stat_stat (EV_A_ w);
4292		4733
4293	if (w->interval < MIN_STAT_INTERVAL && w->interval)	4734	if (w->interval < MIN_STAT_INTERVAL && w->interval)
…		…
4312		4753
4313	EV_FREQUENT_CHECK;	4754	EV_FREQUENT_CHECK;
4314	}	4755	}
4315		4756
4316	void	4757	void
4317	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW	4758	ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4318	{	4759	{
4319	clear_pending (EV_A_ (W)w);	4760	clear_pending (EV_A_ (W)w);
4320	if (expect_false (!ev_is_active (w)))	4761	if (ecb_expect_false (!ev_is_active (w)))
4321	return;	4762	return;
4322		4763
4323	EV_FREQUENT_CHECK;	4764	EV_FREQUENT_CHECK;
4324		4765
4325	#if EV_USE_INOTIFY	4766	#if EV_USE_INOTIFY
…		…
4338	}	4779	}
4339	#endif	4780	#endif
4340		4781
4341	#if EV_IDLE_ENABLE	4782	#if EV_IDLE_ENABLE
4342	void	4783	void
4343	ev_idle_start (EV_P_ ev_idle *w) EV_THROW	4784	ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4344	{	4785	{
4345	if (expect_false (ev_is_active (w)))	4786	if (ecb_expect_false (ev_is_active (w)))
4346	return;	4787	return;
4347		4788
4348	pri_adjust (EV_A_ (W)w);	4789	pri_adjust (EV_A_ (W)w);
4349		4790
4350	EV_FREQUENT_CHECK;	4791	EV_FREQUENT_CHECK;
…		…
4353	int active = ++idlecnt [ABSPRI (w)];	4794	int active = ++idlecnt [ABSPRI (w)];
4354		4795
4355	++idleall;	4796	++idleall;
4356	ev_start (EV_A_ (W)w, active);	4797	ev_start (EV_A_ (W)w, active);
4357		4798
4358	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);
4359	idles [ABSPRI (w)][active - 1] = w;	4800	idles [ABSPRI (w)][active - 1] = w;
4360	}	4801	}
4361		4802
4362	EV_FREQUENT_CHECK;	4803	EV_FREQUENT_CHECK;
4363	}	4804	}
4364		4805
4365	void	4806	void
4366	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW	4807	ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4367	{	4808	{
4368	clear_pending (EV_A_ (W)w);	4809	clear_pending (EV_A_ (W)w);
4369	if (expect_false (!ev_is_active (w)))	4810	if (ecb_expect_false (!ev_is_active (w)))
4370	return;	4811	return;
4371		4812
4372	EV_FREQUENT_CHECK;	4813	EV_FREQUENT_CHECK;
4373		4814
4374	{	4815	{
…		…
4385	}	4826	}
4386	#endif	4827	#endif
4387		4828
4388	#if EV_PREPARE_ENABLE	4829	#if EV_PREPARE_ENABLE
4389	void	4830	void
4390	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW	4831	ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4391	{	4832	{
4392	if (expect_false (ev_is_active (w)))	4833	if (ecb_expect_false (ev_is_active (w)))
4393	return;	4834	return;
4394		4835
4395	EV_FREQUENT_CHECK;	4836	EV_FREQUENT_CHECK;
4396		4837
4397	ev_start (EV_A_ (W)w, ++preparecnt);	4838	ev_start (EV_A_ (W)w, ++preparecnt);
4398	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	4839	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4399	prepares [preparecnt - 1] = w;	4840	prepares [preparecnt - 1] = w;
4400		4841
4401	EV_FREQUENT_CHECK;	4842	EV_FREQUENT_CHECK;
4402	}	4843	}
4403		4844
4404	void	4845	void
4405	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW	4846	ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4406	{	4847	{
4407	clear_pending (EV_A_ (W)w);	4848	clear_pending (EV_A_ (W)w);
4408	if (expect_false (!ev_is_active (w)))	4849	if (ecb_expect_false (!ev_is_active (w)))
4409	return;	4850	return;
4410		4851
4411	EV_FREQUENT_CHECK;	4852	EV_FREQUENT_CHECK;
4412		4853
4413	{	4854	{
…		…
4423	}	4864	}
4424	#endif	4865	#endif
4425		4866
4426	#if EV_CHECK_ENABLE	4867	#if EV_CHECK_ENABLE
4427	void	4868	void
4428	ev_check_start (EV_P_ ev_check *w) EV_THROW	4869	ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4429	{	4870	{
4430	if (expect_false (ev_is_active (w)))	4871	if (ecb_expect_false (ev_is_active (w)))
4431	return;	4872	return;
4432		4873
4433	EV_FREQUENT_CHECK;	4874	EV_FREQUENT_CHECK;
4434		4875
4435	ev_start (EV_A_ (W)w, ++checkcnt);	4876	ev_start (EV_A_ (W)w, ++checkcnt);
4436	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	4877	array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4437	checks [checkcnt - 1] = w;	4878	checks [checkcnt - 1] = w;
4438		4879
4439	EV_FREQUENT_CHECK;	4880	EV_FREQUENT_CHECK;
4440	}	4881	}
4441		4882
4442	void	4883	void
4443	ev_check_stop (EV_P_ ev_check *w) EV_THROW	4884	ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4444	{	4885	{
4445	clear_pending (EV_A_ (W)w);	4886	clear_pending (EV_A_ (W)w);
4446	if (expect_false (!ev_is_active (w)))	4887	if (ecb_expect_false (!ev_is_active (w)))
4447	return;	4888	return;
4448		4889
4449	EV_FREQUENT_CHECK;	4890	EV_FREQUENT_CHECK;
4450		4891
4451	{	4892	{
…		…
4460	EV_FREQUENT_CHECK;	4901	EV_FREQUENT_CHECK;
4461	}	4902	}
4462	#endif	4903	#endif
4463		4904
4464	#if EV_EMBED_ENABLE	4905	#if EV_EMBED_ENABLE
4465	void noinline	4906	ecb_noinline
		4907	void
4466	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	4908	ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4467	{	4909	{
4468	ev_run (w->other, EVRUN_NOWAIT);	4910	ev_run (w->other, EVRUN_NOWAIT);
4469	}	4911	}
4470		4912
4471	static void	4913	static void
…		…
4519	ev_idle_stop (EV_A_ idle);	4961	ev_idle_stop (EV_A_ idle);
4520	}	4962	}
4521	#endif	4963	#endif
4522		4964
4523	void	4965	void
4524	ev_embed_start (EV_P_ ev_embed *w) EV_THROW	4966	ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4525	{	4967	{
4526	if (expect_false (ev_is_active (w)))	4968	if (ecb_expect_false (ev_is_active (w)))
4527	return;	4969	return;
4528		4970
4529	{	4971	{
4530	EV_P = w->other;	4972	EV_P = w->other;
4531	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 ()));
…		…
4550		4992
4551	EV_FREQUENT_CHECK;	4993	EV_FREQUENT_CHECK;
4552	}	4994	}
4553		4995
4554	void	4996	void
4555	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW	4997	ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4556	{	4998	{
4557	clear_pending (EV_A_ (W)w);	4999	clear_pending (EV_A_ (W)w);
4558	if (expect_false (!ev_is_active (w)))	5000	if (ecb_expect_false (!ev_is_active (w)))
4559	return;	5001	return;
4560		5002
4561	EV_FREQUENT_CHECK;	5003	EV_FREQUENT_CHECK;
4562		5004
4563	ev_io_stop (EV_A_ &w->io);	5005	ev_io_stop (EV_A_ &w->io);
…		…
4570	}	5012	}
4571	#endif	5013	#endif
4572		5014
4573	#if EV_FORK_ENABLE	5015	#if EV_FORK_ENABLE
4574	void	5016	void
4575	ev_fork_start (EV_P_ ev_fork *w) EV_THROW	5017	ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4576	{	5018	{
4577	if (expect_false (ev_is_active (w)))	5019	if (ecb_expect_false (ev_is_active (w)))
4578	return;	5020	return;
4579		5021
4580	EV_FREQUENT_CHECK;	5022	EV_FREQUENT_CHECK;
4581		5023
4582	ev_start (EV_A_ (W)w, ++forkcnt);	5024	ev_start (EV_A_ (W)w, ++forkcnt);
4583	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	5025	array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4584	forks [forkcnt - 1] = w;	5026	forks [forkcnt - 1] = w;
4585		5027
4586	EV_FREQUENT_CHECK;	5028	EV_FREQUENT_CHECK;
4587	}	5029	}
4588		5030
4589	void	5031	void
4590	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW	5032	ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4591	{	5033	{
4592	clear_pending (EV_A_ (W)w);	5034	clear_pending (EV_A_ (W)w);
4593	if (expect_false (!ev_is_active (w)))	5035	if (ecb_expect_false (!ev_is_active (w)))
4594	return;	5036	return;
4595		5037
4596	EV_FREQUENT_CHECK;	5038	EV_FREQUENT_CHECK;
4597		5039
4598	{	5040	{
…		…
4608	}	5050	}
4609	#endif	5051	#endif
4610		5052
4611	#if EV_CLEANUP_ENABLE	5053	#if EV_CLEANUP_ENABLE
4612	void	5054	void
4613	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW	5055	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4614	{	5056	{
4615	if (expect_false (ev_is_active (w)))	5057	if (ecb_expect_false (ev_is_active (w)))
4616	return;	5058	return;
4617		5059
4618	EV_FREQUENT_CHECK;	5060	EV_FREQUENT_CHECK;
4619		5061
4620	ev_start (EV_A_ (W)w, ++cleanupcnt);	5062	ev_start (EV_A_ (W)w, ++cleanupcnt);
4621	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);	5063	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4622	cleanups [cleanupcnt - 1] = w;	5064	cleanups [cleanupcnt - 1] = w;
4623		5065
4624	/* cleanup watchers should never keep a refcount on the loop */	5066	/* cleanup watchers should never keep a refcount on the loop */
4625	ev_unref (EV_A);	5067	ev_unref (EV_A);
4626	EV_FREQUENT_CHECK;	5068	EV_FREQUENT_CHECK;
4627	}	5069	}
4628		5070
4629	void	5071	void
4630	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW	5072	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4631	{	5073	{
4632	clear_pending (EV_A_ (W)w);	5074	clear_pending (EV_A_ (W)w);
4633	if (expect_false (!ev_is_active (w)))	5075	if (ecb_expect_false (!ev_is_active (w)))
4634	return;	5076	return;
4635		5077
4636	EV_FREQUENT_CHECK;	5078	EV_FREQUENT_CHECK;
4637	ev_ref (EV_A);	5079	ev_ref (EV_A);
4638		5080
…		…
4649	}	5091	}
4650	#endif	5092	#endif
4651		5093
4652	#if EV_ASYNC_ENABLE	5094	#if EV_ASYNC_ENABLE
4653	void	5095	void
4654	ev_async_start (EV_P_ ev_async *w) EV_THROW	5096	ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4655	{	5097	{
4656	if (expect_false (ev_is_active (w)))	5098	if (ecb_expect_false (ev_is_active (w)))
4657	return;	5099	return;
4658		5100
4659	w->sent = 0;	5101	w->sent = 0;
4660		5102
4661	evpipe_init (EV_A);	5103	evpipe_init (EV_A);
4662		5104
4663	EV_FREQUENT_CHECK;	5105	EV_FREQUENT_CHECK;
4664		5106
4665	ev_start (EV_A_ (W)w, ++asynccnt);	5107	ev_start (EV_A_ (W)w, ++asynccnt);
4666	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	5108	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4667	asyncs [asynccnt - 1] = w;	5109	asyncs [asynccnt - 1] = w;
4668		5110
4669	EV_FREQUENT_CHECK;	5111	EV_FREQUENT_CHECK;
4670	}	5112	}
4671		5113
4672	void	5114	void
4673	ev_async_stop (EV_P_ ev_async *w) EV_THROW	5115	ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4674	{	5116	{
4675	clear_pending (EV_A_ (W)w);	5117	clear_pending (EV_A_ (W)w);
4676	if (expect_false (!ev_is_active (w)))	5118	if (ecb_expect_false (!ev_is_active (w)))
4677	return;	5119	return;
4678		5120
4679	EV_FREQUENT_CHECK;	5121	EV_FREQUENT_CHECK;
4680		5122
4681	{	5123	{
…		…
4689		5131
4690	EV_FREQUENT_CHECK;	5132	EV_FREQUENT_CHECK;
4691	}	5133	}
4692		5134
4693	void	5135	void
4694	ev_async_send (EV_P_ ev_async *w) EV_THROW	5136	ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4695	{	5137	{
4696	w->sent = 1;	5138	w->sent = 1;
4697	evpipe_write (EV_A_ &async_pending);	5139	evpipe_write (EV_A_ &async_pending);
4698	}	5140	}
4699	#endif	5141	#endif
…		…
4736		5178
4737	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));
4738	}	5180	}
4739		5181
4740	void	5182	void
4741	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
4742	{	5184	{
4743	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));
4744
4745	if (expect_false (!once))
4746	{
4747	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4748	return;
4749	}
4750		5186
4751	once->cb = cb;	5187	once->cb = cb;
4752	once->arg = arg;	5188	once->arg = arg;
4753		5189
4754	ev_init (&once->io, once_cb_io);	5190	ev_init (&once->io, once_cb_io);
…		…
4767	}	5203	}
4768		5204
4769	/*****************************************************************************/	5205	/*****************************************************************************/
4770		5206
4771	#if EV_WALK_ENABLE	5207	#if EV_WALK_ENABLE
4772	void ecb_cold	5208	ecb_cold
		5209	void
4773	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
4774	{	5211	{
4775	int i, j;	5212	int i, j;
4776	ev_watcher_list *wl, *wn;	5213	ev_watcher_list *wl, *wn;
4777		5214
4778	if (types & (EV_IO | EV_EMBED))	5215	if (types & (EV_IO | EV_EMBED))

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