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Comparing libev/ev.c (file contents):
Revision 1.483 by root, Tue Jul 31 04:45:58 2018 UTC vs.
Revision 1.525 by root, Wed Jan 22 14:09:07 2020 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	*
…		…
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	118	# endif
119		119
		120	# if HAVE_LINUX_AIO_ABI_H
		121	# ifndef EV_USE_LINUXAIO
		122	# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
		123	# endif
		124	# else
		125	# undef EV_USE_LINUXAIO
		126	# define EV_USE_LINUXAIO 0
		127	# endif
		128
		129	# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
		130	# ifndef EV_USE_IOURING
		131	# define EV_USE_IOURING EV_FEATURE_BACKENDS
		132	# endif
		133	# else
		134	# undef EV_USE_IOURING
		135	# define EV_USE_IOURING 0
		136	# endif
		137
120	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H	138	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121	# ifndef EV_USE_KQUEUE	139	# ifndef EV_USE_KQUEUE
122	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS	140	# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123	# endif	141	# endif
124	# else	142	# else
…		…
159	# endif	177	# endif
160	# else	178	# else
161	# undef EV_USE_EVENTFD	179	# undef EV_USE_EVENTFD
162	# define EV_USE_EVENTFD 0	180	# define EV_USE_EVENTFD 0
163	# endif	181	# endif
164		182
		183	# if HAVE_SYS_TIMERFD_H
		184	# ifndef EV_USE_TIMERFD
		185	# define EV_USE_TIMERFD EV_FEATURE_OS
		186	# endif
		187	# else
		188	# undef EV_USE_TIMERFD
		189	# define EV_USE_TIMERFD 0
		190	# endif
		191
165	#endif	192	#endif
166		193
167	/* OS X, in its infinite idiocy, actually HARDCODES	194	/* OS X, in its infinite idiocy, actually HARDCODES
168	* a limit of 1024 into their select. Where people have brains,	195	* a limit of 1024 into their select. Where people have brains,
169	* OS X engineers apparently have a vacuum. Or maybe they were	196	* OS X engineers apparently have a vacuum. Or maybe they were
…		…
315		342
316	#ifndef EV_USE_PORT	343	#ifndef EV_USE_PORT
317	# define EV_USE_PORT 0	344	# define EV_USE_PORT 0
318	#endif	345	#endif
319		346
		347	#ifndef EV_USE_LINUXAIO
		348	# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
		349	# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
		350	# else
		351	# define EV_USE_LINUXAIO 0
		352	# endif
		353	#endif
		354
		355	#ifndef EV_USE_IOURING
		356	# if __linux /* later checks might disable again */
		357	# define EV_USE_IOURING 1
		358	# else
		359	# define EV_USE_IOURING 0
		360	# endif
		361	#endif
		362
320	#ifndef EV_USE_INOTIFY	363	#ifndef EV_USE_INOTIFY
321	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))	364	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
322	# define EV_USE_INOTIFY EV_FEATURE_OS	365	# define EV_USE_INOTIFY EV_FEATURE_OS
323	# else	366	# else
324	# define EV_USE_INOTIFY 0	367	# define EV_USE_INOTIFY 0
…		…
344	#ifndef EV_USE_SIGNALFD	387	#ifndef EV_USE_SIGNALFD
345	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))	388	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
346	# define EV_USE_SIGNALFD EV_FEATURE_OS	389	# define EV_USE_SIGNALFD EV_FEATURE_OS
347	# else	390	# else
348	# define EV_USE_SIGNALFD 0	391	# define EV_USE_SIGNALFD 0
		392	# endif
		393	#endif
		394
		395	#ifndef EV_USE_TIMERFD
		396	# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
		397	# define EV_USE_TIMERFD EV_FEATURE_OS
		398	# else
		399	# define EV_USE_TIMERFD 0
349	# endif	400	# endif
350	#endif	401	#endif
351		402
352	#if 0 /* debugging */	403	#if 0 /* debugging */
353	# define EV_VERIFY 3	404	# define EV_VERIFY 3
…		…
389	# include <sys/syscall.h>	440	# include <sys/syscall.h>
390	# ifdef SYS_clock_gettime	441	# ifdef SYS_clock_gettime
391	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	442	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
392	# undef EV_USE_MONOTONIC	443	# undef EV_USE_MONOTONIC
393	# define EV_USE_MONOTONIC 1	444	# define EV_USE_MONOTONIC 1
		445	# define EV_NEED_SYSCALL 1
394	# else	446	# else
395	# undef EV_USE_CLOCK_SYSCALL	447	# undef EV_USE_CLOCK_SYSCALL
396	# define EV_USE_CLOCK_SYSCALL 0	448	# define EV_USE_CLOCK_SYSCALL 0
397	# endif	449	# endif
398	#endif	450	#endif
…		…
412	#if !EV_STAT_ENABLE	464	#if !EV_STAT_ENABLE
413	# undef EV_USE_INOTIFY	465	# undef EV_USE_INOTIFY
414	# define EV_USE_INOTIFY 0	466	# define EV_USE_INOTIFY 0
415	#endif	467	#endif
416		468
		469	#if __linux && EV_USE_IOURING
		470	# include <linux/version.h>
		471	# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
		472	# undef EV_USE_IOURING
		473	# define EV_USE_IOURING 0
		474	# endif
		475	#endif
		476
417	#if !EV_USE_NANOSLEEP	477	#if !EV_USE_NANOSLEEP
418	/* hp-ux has it in sys/time.h, which we unconditionally include above */	478	/* hp-ux has it in sys/time.h, which we unconditionally include above */
419	# if !defined _WIN32 && !defined __hpux	479	# if !defined _WIN32 && !defined __hpux
420	# include <sys/select.h>	480	# include <sys/select.h>
		481	# endif
		482	#endif
		483
		484	#if EV_USE_LINUXAIO
		485	# include <sys/syscall.h>
		486	# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
		487	# define EV_NEED_SYSCALL 1
		488	# else
		489	# undef EV_USE_LINUXAIO
		490	# define EV_USE_LINUXAIO 0
		491	# endif
		492	#endif
		493
		494	#if EV_USE_IOURING
		495	# include <sys/syscall.h>
		496	# if !SYS_io_uring_setup && __linux && !__alpha
		497	# define SYS_io_uring_setup 425
		498	# define SYS_io_uring_enter 426
		499	# define SYS_io_uring_wregister 427
		500	# endif
		501	# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
		502	# define EV_NEED_SYSCALL 1
		503	# else
		504	# undef EV_USE_IOURING
		505	# define EV_USE_IOURING 0
421	# endif	506	# endif
422	#endif	507	#endif
423		508
424	#if EV_USE_INOTIFY	509	#if EV_USE_INOTIFY
425	# include <sys/statfs.h>	510	# include <sys/statfs.h>
…		…
430	# define EV_USE_INOTIFY 0	515	# define EV_USE_INOTIFY 0
431	# endif	516	# endif
432	#endif	517	#endif
433		518
434	#if EV_USE_EVENTFD	519	#if EV_USE_EVENTFD
435	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	520	/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
436	# include <stdint.h>	521	# include <stdint.h>
437	# ifndef EFD_NONBLOCK	522	# ifndef EFD_NONBLOCK
438	# define EFD_NONBLOCK O_NONBLOCK	523	# define EFD_NONBLOCK O_NONBLOCK
439	# endif	524	# endif
440	# ifndef EFD_CLOEXEC	525	# ifndef EFD_CLOEXEC
…		…
446	# endif	531	# endif
447	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);	532	EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
448	#endif	533	#endif
449		534
450	#if EV_USE_SIGNALFD	535	#if EV_USE_SIGNALFD
451	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	536	/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
452	# include <stdint.h>	537	# include <stdint.h>
453	# ifndef SFD_NONBLOCK	538	# ifndef SFD_NONBLOCK
454	# define SFD_NONBLOCK O_NONBLOCK	539	# define SFD_NONBLOCK O_NONBLOCK
455	# endif	540	# endif
456	# ifndef SFD_CLOEXEC	541	# ifndef SFD_CLOEXEC
…		…
458	# define SFD_CLOEXEC O_CLOEXEC	543	# define SFD_CLOEXEC O_CLOEXEC
459	# else	544	# else
460	# define SFD_CLOEXEC 02000000	545	# define SFD_CLOEXEC 02000000
461	# endif	546	# endif
462	# endif	547	# endif
463	EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);	548	EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
464		549
465	struct signalfd_siginfo	550	struct signalfd_siginfo
466	{	551	{
467	uint32_t ssi_signo;	552	uint32_t ssi_signo;
468	char pad[128 - sizeof (uint32_t)];	553	char pad[128 - sizeof (uint32_t)];
469	};	554	};
470	#endif	555	#endif
471		556
472	/**/	557	/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
		558	#if EV_USE_TIMERFD
		559	# include <sys/timerfd.h>
		560	/* timerfd is only used for periodics */
		561	# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
		562	# undef EV_USE_TIMERFD
		563	# define EV_USE_TIMERFD 0
		564	# endif
		565	#endif
		566
		567	/*****************************************************************************/
473		568
474	#if EV_VERIFY >= 3	569	#if EV_VERIFY >= 3
475	# define EV_FREQUENT_CHECK ev_verify (EV_A)	570	# define EV_FREQUENT_CHECK ev_verify (EV_A)
476	#else	571	#else
477	# define EV_FREQUENT_CHECK do { } while (0)	572	# define EV_FREQUENT_CHECK do { } while (0)
…		…
482	* This value is good at least till the year 4000.	577	* This value is good at least till the year 4000.
483	*/	578	*/
484	#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */	579	#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
485	/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */	580	/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
486		581
487	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	582	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
488	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	583	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
		584	#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
489		585
		586	/* find a portable timestamp that is "always" in the future but fits into time_t.
		587	* this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
		588	* and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
		589	#define EV_TSTAMP_HUGE \
		590	(sizeof (time_t) >= 8 ? 10000000000000. \
		591	: 0 < (time_t)4294967295 ? 4294967295. \
		592	: 2147483647.) \
		593
		594	#ifndef EV_TS_CONST
		595	# define EV_TS_CONST(nv) nv
		596	# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
		597	# define EV_TS_FROM_USEC(us) us * 1e-6
490	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	598	# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
491	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	599	# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
		600	# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
		601	# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
		602	#endif
492		603
493	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	604	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
494	/* ECB.H BEGIN */	605	/* ECB.H BEGIN */
495	/*	606	/*
496	* libecb - http://software.schmorp.de/pkg/libecb	607	* libecb - http://software.schmorp.de/pkg/libecb
…		…
534		645
535	#ifndef ECB_H	646	#ifndef ECB_H
536	#define ECB_H	647	#define ECB_H
537		648
538	/* 16 bits major, 16 bits minor */	649	/* 16 bits major, 16 bits minor */
539	#define ECB_VERSION 0x00010005	650	#define ECB_VERSION 0x00010008
		651
		652	#include <string.h> /* for memcpy */
540		653
541	#ifdef _WIN32	654	#ifdef _WIN32
542	typedef signed char int8_t;	655	typedef signed char int8_t;
543	typedef unsigned char uint8_t;	656	typedef unsigned char uint8_t;
		657	typedef signed char int_fast8_t;
		658	typedef unsigned char uint_fast8_t;
544	typedef signed short int16_t;	659	typedef signed short int16_t;
545	typedef unsigned short uint16_t;	660	typedef unsigned short uint16_t;
		661	typedef signed int int_fast16_t;
		662	typedef unsigned int uint_fast16_t;
546	typedef signed int int32_t;	663	typedef signed int int32_t;
547	typedef unsigned int uint32_t;	664	typedef unsigned int uint32_t;
		665	typedef signed int int_fast32_t;
		666	typedef unsigned int uint_fast32_t;
548	#if __GNUC__	667	#if __GNUC__
549	typedef signed long long int64_t;	668	typedef signed long long int64_t;
550	typedef unsigned long long uint64_t;	669	typedef unsigned long long uint64_t;
551	#else /* _MSC_VER || __BORLANDC__ */	670	#else /* _MSC_VER || __BORLANDC__ */
552	typedef signed __int64 int64_t;	671	typedef signed __int64 int64_t;
553	typedef unsigned __int64 uint64_t;	672	typedef unsigned __int64 uint64_t;
554	#endif	673	#endif
		674	typedef int64_t int_fast64_t;
		675	typedef uint64_t uint_fast64_t;
555	#ifdef _WIN64	676	#ifdef _WIN64
556	#define ECB_PTRSIZE 8	677	#define ECB_PTRSIZE 8
557	typedef uint64_t uintptr_t;	678	typedef uint64_t uintptr_t;
558	typedef int64_t intptr_t;	679	typedef int64_t intptr_t;
559	#else	680	#else
…		…
571	#endif	692	#endif
572		693
573	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)	694	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)	695	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575		696
		697	#ifndef ECB_OPTIMIZE_SIZE
		698	#if __OPTIMIZE_SIZE__
		699	#define ECB_OPTIMIZE_SIZE 1
		700	#else
		701	#define ECB_OPTIMIZE_SIZE 0
		702	#endif
		703	#endif
		704
576	/* work around x32 idiocy by defining proper macros */	705	/* work around x32 idiocy by defining proper macros */
577	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64	706	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
578	#if _ILP32	707	#if _ILP32
579	#define ECB_AMD64_X32 1	708	#define ECB_AMD64_X32 1
580	#else	709	#else
…		…
609	#define ECB_CLANG_EXTENSION(x) 0	738	#define ECB_CLANG_EXTENSION(x) 0
610	#endif	739	#endif
611		740
612	#define ECB_CPP (__cplusplus+0)	741	#define ECB_CPP (__cplusplus+0)
613	#define ECB_CPP11 (__cplusplus >= 201103L)	742	#define ECB_CPP11 (__cplusplus >= 201103L)
		743	#define ECB_CPP14 (__cplusplus >= 201402L)
		744	#define ECB_CPP17 (__cplusplus >= 201703L)
614		745
615	#if ECB_CPP	746	#if ECB_CPP
616	#define ECB_C 0	747	#define ECB_C 0
617	#define ECB_STDC_VERSION 0	748	#define ECB_STDC_VERSION 0
618	#else	749	#else
…		…
620	#define ECB_STDC_VERSION __STDC_VERSION__	751	#define ECB_STDC_VERSION __STDC_VERSION__
621	#endif	752	#endif
622		753
623	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)	754	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
624	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)	755	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		756	#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
625		757
626	#if ECB_CPP	758	#if ECB_CPP
627	#define ECB_EXTERN_C extern "C"	759	#define ECB_EXTERN_C extern "C"
628	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	760	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
629	#define ECB_EXTERN_C_END }	761	#define ECB_EXTERN_C_END }
…		…
655	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */	787	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
656	#endif	788	#endif
657		789
658	#ifndef ECB_MEMORY_FENCE	790	#ifndef ECB_MEMORY_FENCE
659	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	791	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		792	#define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
660	#if __i386 || __i386__	793	#if __i386 || __i386__
661	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	794	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
662	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	795	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
663	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	796	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
664	#elif ECB_GCC_AMD64	797	#elif ECB_GCC_AMD64
665	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	798	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
666	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	799	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
667	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	800	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
668	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	801	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
669	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	802	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670	#elif defined __ARM_ARCH_2__ \	803	#elif defined __ARM_ARCH_2__ \
671	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \	804	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \	805	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
…		…
714	#if ECB_GCC_VERSION(4,7)	847	#if ECB_GCC_VERSION(4,7)
715	/* see comment below (stdatomic.h) about the C11 memory model. */	848	/* see comment below (stdatomic.h) about the C11 memory model. */
716	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	849	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
717	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)	850	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
718	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)	851	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		852	#define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
719		853
720	#elif ECB_CLANG_EXTENSION(c_atomic)	854	#elif ECB_CLANG_EXTENSION(c_atomic)
721	/* see comment below (stdatomic.h) about the C11 memory model. */	855	/* see comment below (stdatomic.h) about the C11 memory model. */
722	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	856	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
723	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)	857	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
724	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)	858	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
		859	#define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
725		860
726	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	861	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
727	#define ECB_MEMORY_FENCE __sync_synchronize ()	862	#define ECB_MEMORY_FENCE __sync_synchronize ()
728	#elif _MSC_VER >= 1500 /* VC++ 2008 */	863	#elif _MSC_VER >= 1500 /* VC++ 2008 */
729	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */	864	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
…		…
739	#elif defined _WIN32	874	#elif defined _WIN32
740	#include <WinNT.h>	875	#include <WinNT.h>
741	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	876	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
742	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	877	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
743	#include <mbarrier.h>	878	#include <mbarrier.h>
744	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	879	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
745	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	880	#define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
746	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()	881	#define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
		882	#define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
747	#elif __xlC__	883	#elif __xlC__
748	#define ECB_MEMORY_FENCE __sync ()	884	#define ECB_MEMORY_FENCE __sync ()
749	#endif	885	#endif
750	#endif	886	#endif
751		887
752	#ifndef ECB_MEMORY_FENCE	888	#ifndef ECB_MEMORY_FENCE
753	#if ECB_C11 && !defined __STDC_NO_ATOMICS__	889	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
754	/* we assume that these memory fences work on all variables/all memory accesses, */	890	/* we assume that these memory fences work on all variables/all memory accesses, */
755	/* not just C11 atomics and atomic accesses */	891	/* not just C11 atomics and atomic accesses */
756	#include <stdatomic.h>	892	#include <stdatomic.h>
757	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
758	/* any fence other than seq_cst, which isn't very efficient for us. */
759	/* Why that is, we don't know - either the C11 memory model is quite useless */
760	/* for most usages, or gcc and clang have a bug */
761	/* I *currently* lean towards the latter, and inefficiently implement */
762	/* all three of ecb's fences as a seq_cst fence */
763	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
764	/* for all __atomic_thread_fence's except seq_cst */
765	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	893	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		894	#define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
		895	#define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
766	#endif	896	#endif
767	#endif	897	#endif
768		898
769	#ifndef ECB_MEMORY_FENCE	899	#ifndef ECB_MEMORY_FENCE
770	#if !ECB_AVOID_PTHREADS	900	#if !ECB_AVOID_PTHREADS
…		…
788	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	918	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
789	#endif	919	#endif
790		920
791	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE	921	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
792	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	922	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		923	#endif
		924
		925	#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
		926	#define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
793	#endif	927	#endif
794		928
795	/*****************************************************************************/	929	/*****************************************************************************/
796		930
797	#if ECB_CPP	931	#if ECB_CPP
…		…
1081	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }	1215	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1082	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }	1216	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1083	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }	1217	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1084	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }	1218	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1085		1219
		1220	#if ECB_CPP
		1221
		1222	inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
		1223	inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
		1224	inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
		1225	inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
		1226
		1227	inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
		1228	inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
		1229	inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
		1230	inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
		1231
		1232	inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
		1233	inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
		1234	inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
		1235	inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
		1236
		1237	inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
		1238	inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
		1239	inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
		1240	inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
		1241
		1242	inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
		1243	inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
		1244	inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
		1245
		1246	inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
		1247	inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
		1248	inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
		1249	inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
		1250
		1251	inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
		1252	inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
		1253	inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
		1254	inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
		1255
		1256	#endif
		1257
1086	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))	1258	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1087	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)	1259	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1088	#define ecb_bswap16(x) __builtin_bswap16 (x)	1260	#define ecb_bswap16(x) __builtin_bswap16 (x)
1089	#else	1261	#else
1090	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1262	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
…		…
1161	ecb_inline ecb_const ecb_bool ecb_big_endian (void);	1333	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1162	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }	1334	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1163	ecb_inline ecb_const ecb_bool ecb_little_endian (void);	1335	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1164	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }	1336	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1165		1337
		1338	/*****************************************************************************/
		1339	/* unaligned load/store */
		1340
		1341	ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
		1342	ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
		1343	ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
		1344
		1345	ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
		1346	ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
		1347	ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
		1348
		1349	ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
		1350	ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
		1351	ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
		1352
		1353	ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
		1354	ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
		1355	ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
		1356
		1357	ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
		1358	ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
		1359	ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
		1360
		1361	ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
		1362	ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
		1363	ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
		1364
		1365	ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
		1366	ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
		1367	ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
		1368
		1369	ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
		1370	ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
		1371	ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
		1372
		1373	ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
		1374	ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
		1375	ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
		1376
		1377	ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
		1378	ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
		1379	ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
		1380
		1381	#if ECB_CPP
		1382
		1383	inline uint8_t ecb_bswap (uint8_t v) { return v; }
		1384	inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
		1385	inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
		1386	inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
		1387
		1388	template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
		1389	template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
		1390	template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
		1391	template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
		1392	template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
		1393	template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
		1394	template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
		1395	template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
		1396
		1397	template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
		1398	template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
		1399	template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
		1400	template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
		1401	template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
		1402	template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
		1403	template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
		1404	template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
		1405
		1406	#endif
		1407
		1408	/*****************************************************************************/
		1409
1166	#if ECB_GCC_VERSION(3,0) || ECB_C99	1410	#if ECB_GCC_VERSION(3,0) || ECB_C99
1167	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1411	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1168	#else	1412	#else
1169	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1413	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1170	#endif	1414	#endif
…		…
1193	return N;	1437	return N;
1194	}	1438	}
1195	#else	1439	#else
1196	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1440	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1197	#endif	1441	#endif
		1442
		1443	/*****************************************************************************/
1198		1444
1199	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);	1445	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200	ecb_function_ ecb_const uint32_t	1446	ecb_function_ ecb_const uint32_t
1201	ecb_binary16_to_binary32 (uint32_t x)	1447	ecb_binary16_to_binary32 (uint32_t x)
1202	{	1448	{
…		…
1311	|| defined __sh__ \	1557	|| defined __sh__ \
1312	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \	1558	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1313	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \	1559	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1314	|| defined __aarch64__	1560	|| defined __aarch64__
1315	#define ECB_STDFP 1	1561	#define ECB_STDFP 1
1316	#include <string.h> /* for memcpy */
1317	#else	1562	#else
1318	#define ECB_STDFP 0	1563	#define ECB_STDFP 0
1319	#endif	1564	#endif
1320		1565
1321	#ifndef ECB_NO_LIBM	1566	#ifndef ECB_NO_LIBM
…		…
1506	/* ECB.H END */	1751	/* ECB.H END */
1507		1752
1508	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1753	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1509	/* if your architecture doesn't need memory fences, e.g. because it is	1754	/* if your architecture doesn't need memory fences, e.g. because it is
1510	* single-cpu/core, or if you use libev in a project that doesn't use libev	1755	* single-cpu/core, or if you use libev in a project that doesn't use libev
1511	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling	1756	* from multiple threads, then you can define ECB_NO_THREADS when compiling
1512	* libev, in which cases the memory fences become nops.	1757	* libev, in which cases the memory fences become nops.
1513	* alternatively, you can remove this #error and link against libpthread,	1758	* alternatively, you can remove this #error and link against libpthread,
1514	* which will then provide the memory fences.	1759	* which will then provide the memory fences.
1515	*/	1760	*/
1516	# error "memory fences not defined for your architecture, please report"	1761	# error "memory fences not defined for your architecture, please report"
…		…
1520	# define ECB_MEMORY_FENCE do { } while (0)	1765	# define ECB_MEMORY_FENCE do { } while (0)
1521	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	1766	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1522	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	1767	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1523	#endif	1768	#endif
1524		1769
1525	#define expect_false(cond) ecb_expect_false (cond)
1526	#define expect_true(cond) ecb_expect_true (cond)
1527	#define noinline ecb_noinline
1528
1529	#define inline_size ecb_inline	1770	#define inline_size ecb_inline
1530		1771
1531	#if EV_FEATURE_CODE	1772	#if EV_FEATURE_CODE
1532	# define inline_speed ecb_inline	1773	# define inline_speed ecb_inline
1533	#else	1774	#else
1534	# define inline_speed noinline static	1775	# define inline_speed ecb_noinline static
1535	#endif	1776	#endif
		1777
		1778	/*****************************************************************************/
		1779	/* raw syscall wrappers */
		1780
		1781	#if EV_NEED_SYSCALL
		1782
		1783	#include <sys/syscall.h>
		1784
		1785	/*
		1786	* define some syscall wrappers for common architectures
		1787	* this is mostly for nice looks during debugging, not performance.
		1788	* our syscalls return < 0, not == -1, on error. which is good
		1789	* enough for linux aio.
		1790	* TODO: arm is also common nowadays, maybe even mips and x86
		1791	* TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
		1792	*/
		1793	#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
		1794	/* the costly errno access probably kills this for size optimisation */
		1795
		1796	#define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
		1797	({ \
		1798	long res; \
		1799	register unsigned long r6 __asm__ ("r9" ); \
		1800	register unsigned long r5 __asm__ ("r8" ); \
		1801	register unsigned long r4 __asm__ ("r10"); \
		1802	register unsigned long r3 __asm__ ("rdx"); \
		1803	register unsigned long r2 __asm__ ("rsi"); \
		1804	register unsigned long r1 __asm__ ("rdi"); \
		1805	if (narg >= 6) r6 = (unsigned long)(arg6); \
		1806	if (narg >= 5) r5 = (unsigned long)(arg5); \
		1807	if (narg >= 4) r4 = (unsigned long)(arg4); \
		1808	if (narg >= 3) r3 = (unsigned long)(arg3); \
		1809	if (narg >= 2) r2 = (unsigned long)(arg2); \
		1810	if (narg >= 1) r1 = (unsigned long)(arg1); \
		1811	__asm__ __volatile__ ( \
		1812	"syscall\n\t" \
		1813	: "=a" (res) \
		1814	: "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
		1815	: "cc", "r11", "cx", "memory"); \
		1816	errno = -res; \
		1817	res; \
		1818	})
		1819
		1820	#endif
		1821
		1822	#ifdef ev_syscall
		1823	#define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
		1824	#define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
		1825	#define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
		1826	#define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
		1827	#define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
		1828	#define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
		1829	#define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
		1830	#else
		1831	#define ev_syscall0(nr) syscall (nr)
		1832	#define ev_syscall1(nr,arg1) syscall (nr, arg1)
		1833	#define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
		1834	#define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
		1835	#define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
		1836	#define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
		1837	#define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
		1838	#endif
		1839
		1840	#endif
		1841
		1842	/*****************************************************************************/
1536		1843
1537	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1844	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1538		1845
1539	#if EV_MINPRI == EV_MAXPRI	1846	#if EV_MINPRI == EV_MAXPRI
1540	# define ABSPRI(w) (((W)w), 0)	1847	# define ABSPRI(w) (((W)w), 0)
1541	#else	1848	#else
1542	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)	1849	# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1543	#endif	1850	#endif
1544		1851
1545	#define EMPTY /* required for microsofts broken pseudo-c compiler */	1852	#define EMPTY /* required for microsofts broken pseudo-c compiler */
1546	#define EMPTY2(a,b) /* used to suppress some warnings */
1547		1853
1548	typedef ev_watcher *W;	1854	typedef ev_watcher *W;
1549	typedef ev_watcher_list *WL;	1855	typedef ev_watcher_list *WL;
1550	typedef ev_watcher_time *WT;	1856	typedef ev_watcher_time *WT;
1551		1857
…		…
1576	# include "ev_win32.c"	1882	# include "ev_win32.c"
1577	#endif	1883	#endif
1578		1884
1579	/*****************************************************************************/	1885	/*****************************************************************************/
1580		1886
		1887	#if EV_USE_LINUXAIO
		1888	# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
		1889	#endif
		1890
1581	/* define a suitable floor function (only used by periodics atm) */	1891	/* define a suitable floor function (only used by periodics atm) */
1582		1892
1583	#if EV_USE_FLOOR	1893	#if EV_USE_FLOOR
1584	# include <math.h>	1894	# include <math.h>
1585	# define ev_floor(v) floor (v)	1895	# define ev_floor(v) floor (v)
1586	#else	1896	#else
1587		1897
1588	#include <float.h>	1898	#include <float.h>
1589		1899
1590	/* a floor() replacement function, should be independent of ev_tstamp type */	1900	/* a floor() replacement function, should be independent of ev_tstamp type */
1591	noinline	1901	ecb_noinline
1592	static ev_tstamp	1902	static ev_tstamp
1593	ev_floor (ev_tstamp v)	1903	ev_floor (ev_tstamp v)
1594	{	1904	{
1595	/* the choice of shift factor is not terribly important */	1905	/* the choice of shift factor is not terribly important */
1596	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1906	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1597	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1907	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1598	#else	1908	#else
1599	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;	1909	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1600	#endif	1910	#endif
1601		1911
		1912	/* special treatment for negative arguments */
		1913	if (ecb_expect_false (v < 0.))
		1914	{
		1915	ev_tstamp f = -ev_floor (-v);
		1916
		1917	return f - (f == v ? 0 : 1);
		1918	}
		1919
1602	/* argument too large for an unsigned long? */	1920	/* argument too large for an unsigned long? then reduce it */
1603	if (expect_false (v >= shift))	1921	if (ecb_expect_false (v >= shift))
1604	{	1922	{
1605	ev_tstamp f;	1923	ev_tstamp f;
1606		1924
1607	if (v == v - 1.)	1925	if (v == v - 1.)
1608	return v; /* very large number */	1926	return v; /* very large numbers are assumed to be integer */
1609		1927
1610	f = shift * ev_floor (v * (1. / shift));	1928	f = shift * ev_floor (v * (1. / shift));
1611	return f + ev_floor (v - f);	1929	return f + ev_floor (v - f);
1612	}	1930	}
1613		1931
1614	/* special treatment for negative args? */
1615	if (expect_false (v < 0.))
1616	{
1617	ev_tstamp f = -ev_floor (-v);
1618
1619	return f - (f == v ? 0 : 1);
1620	}
1621
1622	/* fits into an unsigned long */	1932	/* fits into an unsigned long */
1623	return (unsigned long)v;	1933	return (unsigned long)v;
1624	}	1934	}
1625		1935
1626	#endif	1936	#endif
…		…
1629		1939
1630	#ifdef __linux	1940	#ifdef __linux
1631	# include <sys/utsname.h>	1941	# include <sys/utsname.h>
1632	#endif	1942	#endif
1633		1943
1634	noinline ecb_cold	1944	ecb_noinline ecb_cold
1635	static unsigned int	1945	static unsigned int
1636	ev_linux_version (void)	1946	ev_linux_version (void)
1637	{	1947	{
1638	#ifdef __linux	1948	#ifdef __linux
1639	unsigned int v = 0;	1949	unsigned int v = 0;
…		…
1669	}	1979	}
1670		1980
1671	/*****************************************************************************/	1981	/*****************************************************************************/
1672		1982
1673	#if EV_AVOID_STDIO	1983	#if EV_AVOID_STDIO
1674	noinline ecb_cold	1984	ecb_noinline ecb_cold
1675	static void	1985	static void
1676	ev_printerr (const char *msg)	1986	ev_printerr (const char *msg)
1677	{	1987	{
1678	write (STDERR_FILENO, msg, strlen (msg));	1988	write (STDERR_FILENO, msg, strlen (msg));
1679	}	1989	}
1680	#endif	1990	#endif
1681		1991
1682	static void (*syserr_cb)(const char *msg) EV_THROW;	1992	static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1683		1993
1684	ecb_cold	1994	ecb_cold
1685	void	1995	void
1686	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW	1996	ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1687	{	1997	{
1688	syserr_cb = cb;	1998	syserr_cb = cb;
1689	}	1999	}
1690		2000
1691	noinline ecb_cold	2001	ecb_noinline ecb_cold
1692	static void	2002	static void
1693	ev_syserr (const char *msg)	2003	ev_syserr (const char *msg)
1694	{	2004	{
1695	if (!msg)	2005	if (!msg)
1696	msg = "(libev) system error";	2006	msg = "(libev) system error";
…		…
1710	abort ();	2020	abort ();
1711	}	2021	}
1712	}	2022	}
1713		2023
1714	static void *	2024	static void *
1715	ev_realloc_emul (void *ptr, long size) EV_THROW	2025	ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1716	{	2026	{
1717	/* some systems, notably openbsd and darwin, fail to properly	2027	/* some systems, notably openbsd and darwin, fail to properly
1718	* implement realloc (x, 0) (as required by both ansi c-89 and	2028	* implement realloc (x, 0) (as required by both ansi c-89 and
1719	* the single unix specification, so work around them here.	2029	* the single unix specification, so work around them here.
1720	* recently, also (at least) fedora and debian started breaking it,	2030	* recently, also (at least) fedora and debian started breaking it,
…		…
1726		2036
1727	free (ptr);	2037	free (ptr);
1728	return 0;	2038	return 0;
1729	}	2039	}
1730		2040
1731	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	2041	static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1732		2042
1733	ecb_cold	2043	ecb_cold
1734	void	2044	void
1735	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW	2045	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1736	{	2046	{
1737	alloc = cb;	2047	alloc = cb;
1738	}	2048	}
1739		2049
1740	inline_speed void *	2050	inline_speed void *
…		…
1767	typedef struct	2077	typedef struct
1768	{	2078	{
1769	WL head;	2079	WL head;
1770	unsigned char events; /* the events watched for */	2080	unsigned char events; /* the events watched for */
1771	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */	2081	unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1772	unsigned char emask; /* the epoll backend stores the actual kernel mask in here */	2082	unsigned char emask; /* some backends store the actual kernel mask in here */
1773	unsigned char unused;	2083	unsigned char eflags; /* flags field for use by backends */
1774	#if EV_USE_EPOLL	2084	#if EV_USE_EPOLL
1775	unsigned int egen; /* generation counter to counter epoll bugs */	2085	unsigned int egen; /* generation counter to counter epoll bugs */
1776	#endif	2086	#endif
1777	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP	2087	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1778	SOCKET handle;	2088	SOCKET handle;
…		…
1832	static struct ev_loop default_loop_struct;	2142	static struct ev_loop default_loop_struct;
1833	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */	2143	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1834		2144
1835	#else	2145	#else
1836		2146
1837	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */	2147	EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1838	#define VAR(name,decl) static decl;	2148	#define VAR(name,decl) static decl;
1839	#include "ev_vars.h"	2149	#include "ev_vars.h"
1840	#undef VAR	2150	#undef VAR
1841		2151
1842	static int ev_default_loop_ptr;	2152	static int ev_default_loop_ptr;
1843		2153
1844	#endif	2154	#endif
1845		2155
1846	#if EV_FEATURE_API	2156	#if EV_FEATURE_API
1847	# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)	2157	# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1848	# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)	2158	# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1849	# define EV_INVOKE_PENDING invoke_cb (EV_A)	2159	# define EV_INVOKE_PENDING invoke_cb (EV_A)
1850	#else	2160	#else
1851	# define EV_RELEASE_CB (void)0	2161	# define EV_RELEASE_CB (void)0
1852	# define EV_ACQUIRE_CB (void)0	2162	# define EV_ACQUIRE_CB (void)0
1853	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)	2163	# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
…		…
1857		2167
1858	/*****************************************************************************/	2168	/*****************************************************************************/
1859		2169
1860	#ifndef EV_HAVE_EV_TIME	2170	#ifndef EV_HAVE_EV_TIME
1861	ev_tstamp	2171	ev_tstamp
1862	ev_time (void) EV_THROW	2172	ev_time (void) EV_NOEXCEPT
1863	{	2173	{
1864	#if EV_USE_REALTIME	2174	#if EV_USE_REALTIME
1865	if (expect_true (have_realtime))	2175	if (ecb_expect_true (have_realtime))
1866	{	2176	{
1867	struct timespec ts;	2177	struct timespec ts;
1868	clock_gettime (CLOCK_REALTIME, &ts);	2178	clock_gettime (CLOCK_REALTIME, &ts);
1869	return ts.tv_sec + ts.tv_nsec * 1e-9;	2179	return EV_TS_GET (ts);
1870	}	2180	}
1871	#endif	2181	#endif
1872		2182
		2183	{
1873	struct timeval tv;	2184	struct timeval tv;
1874	gettimeofday (&tv, 0);	2185	gettimeofday (&tv, 0);
1875	return tv.tv_sec + tv.tv_usec * 1e-6;	2186	return EV_TV_GET (tv);
		2187	}
1876	}	2188	}
1877	#endif	2189	#endif
1878		2190
1879	inline_size ev_tstamp	2191	inline_size ev_tstamp
1880	get_clock (void)	2192	get_clock (void)
1881	{	2193	{
1882	#if EV_USE_MONOTONIC	2194	#if EV_USE_MONOTONIC
1883	if (expect_true (have_monotonic))	2195	if (ecb_expect_true (have_monotonic))
1884	{	2196	{
1885	struct timespec ts;	2197	struct timespec ts;
1886	clock_gettime (CLOCK_MONOTONIC, &ts);	2198	clock_gettime (CLOCK_MONOTONIC, &ts);
1887	return ts.tv_sec + ts.tv_nsec * 1e-9;	2199	return EV_TS_GET (ts);
1888	}	2200	}
1889	#endif	2201	#endif
1890		2202
1891	return ev_time ();	2203	return ev_time ();
1892	}	2204	}
1893		2205
1894	#if EV_MULTIPLICITY	2206	#if EV_MULTIPLICITY
1895	ev_tstamp	2207	ev_tstamp
1896	ev_now (EV_P) EV_THROW	2208	ev_now (EV_P) EV_NOEXCEPT
1897	{	2209	{
1898	return ev_rt_now;	2210	return ev_rt_now;
1899	}	2211	}
1900	#endif	2212	#endif
1901		2213
1902	void	2214	void
1903	ev_sleep (ev_tstamp delay) EV_THROW	2215	ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1904	{	2216	{
1905	if (delay > 0.)	2217	if (delay > EV_TS_CONST (0.))
1906	{	2218	{
1907	#if EV_USE_NANOSLEEP	2219	#if EV_USE_NANOSLEEP
1908	struct timespec ts;	2220	struct timespec ts;
1909		2221
1910	EV_TS_SET (ts, delay);	2222	EV_TS_SET (ts, delay);
1911	nanosleep (&ts, 0);	2223	nanosleep (&ts, 0);
1912	#elif defined _WIN32	2224	#elif defined _WIN32
1913	/* maybe this should round up, as ms is very low resolution */	2225	/* maybe this should round up, as ms is very low resolution */
1914	/* compared to select (µs) or nanosleep (ns) */	2226	/* compared to select (µs) or nanosleep (ns) */
1915	Sleep ((unsigned long)(delay * 1e3));	2227	Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1916	#else	2228	#else
1917	struct timeval tv;	2229	struct timeval tv;
1918		2230
1919	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	2231	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1920	/* something not guaranteed by newer posix versions, but guaranteed */	2232	/* something not guaranteed by newer posix versions, but guaranteed */
…		…
1950	}	2262	}
1951		2263
1952	return ncur;	2264	return ncur;
1953	}	2265	}
1954		2266
1955	noinline ecb_cold	2267	ecb_noinline ecb_cold
1956	static void *	2268	static void *
1957	array_realloc (int elem, void *base, int *cur, int cnt)	2269	array_realloc (int elem, void *base, int *cur, int cnt)
1958	{	2270	{
1959	*cur = array_nextsize (elem, *cur, cnt);	2271	*cur = array_nextsize (elem, *cur, cnt);
1960	return ev_realloc (base, elem * *cur);	2272	return ev_realloc (base, elem * *cur);
1961	}	2273	}
1962		2274
		2275	#define array_needsize_noinit(base,offset,count)
		2276
1963	#define array_init_zero(base,count) \	2277	#define array_needsize_zerofill(base,offset,count) \
1964	memset ((void *)(base), 0, sizeof (*(base)) * (count))	2278	memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1965		2279
1966	#define array_needsize(type,base,cur,cnt,init) \	2280	#define array_needsize(type,base,cur,cnt,init) \
1967	if (expect_false ((cnt) > (cur))) \	2281	if (ecb_expect_false ((cnt) > (cur))) \
1968	{ \	2282	{ \
1969	ecb_unused int ocur_ = (cur); \	2283	ecb_unused int ocur_ = (cur); \
1970	(base) = (type *)array_realloc \	2284	(base) = (type *)array_realloc \
1971	(sizeof (type), (base), &(cur), (cnt)); \	2285	(sizeof (type), (base), &(cur), (cnt)); \
1972	init ((base) + (ocur_), (cur) - ocur_); \	2286	init ((base), ocur_, ((cur) - ocur_)); \
1973	}	2287	}
1974		2288
1975	#if 0	2289	#if 0
1976	#define array_slim(type,stem) \	2290	#define array_slim(type,stem) \
1977	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	2291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
…		…
1986	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	2300	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1987		2301
1988	/*****************************************************************************/	2302	/*****************************************************************************/
1989		2303
1990	/* dummy callback for pending events */	2304	/* dummy callback for pending events */
1991	noinline	2305	ecb_noinline
1992	static void	2306	static void
1993	pendingcb (EV_P_ ev_prepare *w, int revents)	2307	pendingcb (EV_P_ ev_prepare *w, int revents)
1994	{	2308	{
1995	}	2309	}
1996		2310
1997	noinline	2311	ecb_noinline
1998	void	2312	void
1999	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	2313	ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2000	{	2314	{
2001	W w_ = (W)w;	2315	W w_ = (W)w;
2002	int pri = ABSPRI (w_);	2316	int pri = ABSPRI (w_);
2003		2317
2004	if (expect_false (w_->pending))	2318	if (ecb_expect_false (w_->pending))
2005	pendings [pri][w_->pending - 1].events |= revents;	2319	pendings [pri][w_->pending - 1].events |= revents;
2006	else	2320	else
2007	{	2321	{
2008	w_->pending = ++pendingcnt [pri];	2322	w_->pending = ++pendingcnt [pri];
2009	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	2323	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2010	pendings [pri][w_->pending - 1].w = w_;	2324	pendings [pri][w_->pending - 1].w = w_;
2011	pendings [pri][w_->pending - 1].events = revents;	2325	pendings [pri][w_->pending - 1].events = revents;
2012	}	2326	}
2013		2327
2014	pendingpri = NUMPRI - 1;	2328	pendingpri = NUMPRI - 1;
2015	}	2329	}
2016		2330
2017	inline_speed void	2331	inline_speed void
2018	feed_reverse (EV_P_ W w)	2332	feed_reverse (EV_P_ W w)
2019	{	2333	{
2020	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);	2334	array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2021	rfeeds [rfeedcnt++] = w;	2335	rfeeds [rfeedcnt++] = w;
2022	}	2336	}
2023		2337
2024	inline_size void	2338	inline_size void
2025	feed_reverse_done (EV_P_ int revents)	2339	feed_reverse_done (EV_P_ int revents)
…		…
2060	inline_speed void	2374	inline_speed void
2061	fd_event (EV_P_ int fd, int revents)	2375	fd_event (EV_P_ int fd, int revents)
2062	{	2376	{
2063	ANFD *anfd = anfds + fd;	2377	ANFD *anfd = anfds + fd;
2064		2378
2065	if (expect_true (!anfd->reify))	2379	if (ecb_expect_true (!anfd->reify))
2066	fd_event_nocheck (EV_A_ fd, revents);	2380	fd_event_nocheck (EV_A_ fd, revents);
2067	}	2381	}
2068		2382
2069	void	2383	void
2070	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW	2384	ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2071	{	2385	{
2072	if (fd >= 0 && fd < anfdmax)	2386	if (fd >= 0 && fd < anfdmax)
2073	fd_event_nocheck (EV_A_ fd, revents);	2387	fd_event_nocheck (EV_A_ fd, revents);
2074	}	2388	}
2075		2389
…		…
2078	inline_size void	2392	inline_size void
2079	fd_reify (EV_P)	2393	fd_reify (EV_P)
2080	{	2394	{
2081	int i;	2395	int i;
2082		2396
		2397	/* most backends do not modify the fdchanges list in backend_modfiy.
		2398	* except io_uring, which has fixed-size buffers which might force us
		2399	* to handle events in backend_modify, causing fdchanges to be amended,
		2400	* which could result in an endless loop.
		2401	* to avoid this, we do not dynamically handle fds that were added
		2402	* during fd_reify. that means that for those backends, fdchangecnt
		2403	* might be non-zero during poll, which must cause them to not block.
		2404	* to not put too much of a burden on other backends, this detail
		2405	* needs to be handled in the backend.
		2406	*/
		2407	int changecnt = fdchangecnt;
		2408
2083	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP	2409	#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2084	for (i = 0; i < fdchangecnt; ++i)	2410	for (i = 0; i < changecnt; ++i)
2085	{	2411	{
2086	int fd = fdchanges [i];	2412	int fd = fdchanges [i];
2087	ANFD *anfd = anfds + fd;	2413	ANFD *anfd = anfds + fd;
2088		2414
2089	if (anfd->reify & EV__IOFDSET && anfd->head)	2415	if (anfd->reify & EV__IOFDSET && anfd->head)
…		…
2103	}	2429	}
2104	}	2430	}
2105	}	2431	}
2106	#endif	2432	#endif
2107		2433
2108	for (i = 0; i < fdchangecnt; ++i)	2434	for (i = 0; i < changecnt; ++i)
2109	{	2435	{
2110	int fd = fdchanges [i];	2436	int fd = fdchanges [i];
2111	ANFD *anfd = anfds + fd;	2437	ANFD *anfd = anfds + fd;
2112	ev_io *w;	2438	ev_io *w;
2113		2439
2114	unsigned char o_events = anfd->events;	2440	unsigned char o_events = anfd->events;
2115	unsigned char o_reify = anfd->reify;	2441	unsigned char o_reify = anfd->reify;
2116		2442
2117	anfd->reify = 0;	2443	anfd->reify = 0;
2118		2444
2119	/*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */	2445	/*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2120	{	2446	{
2121	anfd->events = 0;	2447	anfd->events = 0;
2122		2448
2123	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)	2449	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2124	anfd->events |= (unsigned char)w->events;	2450	anfd->events |= (unsigned char)w->events;
…		…
2129		2455
2130	if (o_reify & EV__IOFDSET)	2456	if (o_reify & EV__IOFDSET)
2131	backend_modify (EV_A_ fd, o_events, anfd->events);	2457	backend_modify (EV_A_ fd, o_events, anfd->events);
2132	}	2458	}
2133		2459
		2460	/* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
		2461	* this is a rare case (see beginning comment in this function), so we copy them to the
		2462	* front and hope the backend handles this case.
		2463	*/
		2464	if (ecb_expect_false (fdchangecnt != changecnt))
		2465	memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
		2466
2134	fdchangecnt = 0;	2467	fdchangecnt -= changecnt;
2135	}	2468	}
2136		2469
2137	/* something about the given fd changed */	2470	/* something about the given fd changed */
2138	inline_size	2471	inline_size
2139	void	2472	void
2140	fd_change (EV_P_ int fd, int flags)	2473	fd_change (EV_P_ int fd, int flags)
2141	{	2474	{
2142	unsigned char reify = anfds [fd].reify;	2475	unsigned char reify = anfds [fd].reify;
2143	anfds [fd].reify |= flags;	2476	anfds [fd].reify |= flags;
2144		2477
2145	if (expect_true (!reify))	2478	if (ecb_expect_true (!reify))
2146	{	2479	{
2147	++fdchangecnt;	2480	++fdchangecnt;
2148	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);	2481	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2149	fdchanges [fdchangecnt - 1] = fd;	2482	fdchanges [fdchangecnt - 1] = fd;
2150	}	2483	}
2151	}	2484	}
2152		2485
2153	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	2486	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
…		…
2173	return fcntl (fd, F_GETFD) != -1;	2506	return fcntl (fd, F_GETFD) != -1;
2174	#endif	2507	#endif
2175	}	2508	}
2176		2509
2177	/* called on EBADF to verify fds */	2510	/* called on EBADF to verify fds */
2178	noinline ecb_cold	2511	ecb_noinline ecb_cold
2179	static void	2512	static void
2180	fd_ebadf (EV_P)	2513	fd_ebadf (EV_P)
2181	{	2514	{
2182	int fd;	2515	int fd;
2183		2516
…		…
2186	if (!fd_valid (fd) && errno == EBADF)	2519	if (!fd_valid (fd) && errno == EBADF)
2187	fd_kill (EV_A_ fd);	2520	fd_kill (EV_A_ fd);
2188	}	2521	}
2189		2522
2190	/* called on ENOMEM in select/poll to kill some fds and retry */	2523	/* called on ENOMEM in select/poll to kill some fds and retry */
2191	noinline ecb_cold	2524	ecb_noinline ecb_cold
2192	static void	2525	static void
2193	fd_enomem (EV_P)	2526	fd_enomem (EV_P)
2194	{	2527	{
2195	int fd;	2528	int fd;
2196		2529
…		…
2201	break;	2534	break;
2202	}	2535	}
2203	}	2536	}
2204		2537
2205	/* usually called after fork if backend needs to re-arm all fds from scratch */	2538	/* usually called after fork if backend needs to re-arm all fds from scratch */
2206	noinline	2539	ecb_noinline
2207	static void	2540	static void
2208	fd_rearm_all (EV_P)	2541	fd_rearm_all (EV_P)
2209	{	2542	{
2210	int fd;	2543	int fd;
2211		2544
…		…
2265	ev_tstamp minat;	2598	ev_tstamp minat;
2266	ANHE *minpos;	2599	ANHE *minpos;
2267	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;	2600	ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2268		2601
2269	/* find minimum child */	2602	/* find minimum child */
2270	if (expect_true (pos + DHEAP - 1 < E))	2603	if (ecb_expect_true (pos + DHEAP - 1 < E))
2271	{	2604	{
2272	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	2605	/* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2273	if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	2606	if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2274	if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	2607	if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2275	if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	2608	if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2276	}	2609	}
2277	else if (pos < E)	2610	else if (pos < E)
2278	{	2611	{
2279	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));	2612	/* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2280	if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));	2613	if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2281	if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));	2614	if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2282	if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));	2615	if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2283	}	2616	}
2284	else	2617	else
2285	break;	2618	break;
2286		2619
2287	if (ANHE_at (he) <= minat)	2620	if (ANHE_at (he) <= minat)
…		…
2295		2628
2296	heap [k] = he;	2629	heap [k] = he;
2297	ev_active (ANHE_w (he)) = k;	2630	ev_active (ANHE_w (he)) = k;
2298	}	2631	}
2299		2632
2300	#else /* 4HEAP */	2633	#else /* not 4HEAP */
2301		2634
2302	#define HEAP0 1	2635	#define HEAP0 1
2303	#define HPARENT(k) ((k) >> 1)	2636	#define HPARENT(k) ((k) >> 1)
2304	#define UPHEAP_DONE(p,k) (!(p))	2637	#define UPHEAP_DONE(p,k) (!(p))
2305		2638
…		…
2377	upheap (heap, i + HEAP0);	2710	upheap (heap, i + HEAP0);
2378	}	2711	}
2379		2712
2380	/*****************************************************************************/	2713	/*****************************************************************************/
2381		2714
2382	/* associate signal watchers to a signal signal */	2715	/* associate signal watchers to a signal */
2383	typedef struct	2716	typedef struct
2384	{	2717	{
2385	EV_ATOMIC_T pending;	2718	EV_ATOMIC_T pending;
2386	#if EV_MULTIPLICITY	2719	#if EV_MULTIPLICITY
2387	EV_P;	2720	EV_P;
…		…
2393		2726
2394	/*****************************************************************************/	2727	/*****************************************************************************/
2395		2728
2396	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2729	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2397		2730
2398	noinline ecb_cold	2731	ecb_noinline ecb_cold
2399	static void	2732	static void
2400	evpipe_init (EV_P)	2733	evpipe_init (EV_P)
2401	{	2734	{
2402	if (!ev_is_active (&pipe_w))	2735	if (!ev_is_active (&pipe_w))
2403	{	2736	{
…		…
2444	inline_speed void	2777	inline_speed void
2445	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	2778	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2446	{	2779	{
2447	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */	2780	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2448		2781
2449	if (expect_true (*flag))	2782	if (ecb_expect_true (*flag))
2450	return;	2783	return;
2451		2784
2452	*flag = 1;	2785	*flag = 1;
2453	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */	2786	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2454		2787
…		…
2475	#endif	2808	#endif
2476	{	2809	{
2477	#ifdef _WIN32	2810	#ifdef _WIN32
2478	WSABUF buf;	2811	WSABUF buf;
2479	DWORD sent;	2812	DWORD sent;
2480	buf.buf = &buf;	2813	buf.buf = (char *)&buf;
2481	buf.len = 1;	2814	buf.len = 1;
2482	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);	2815	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2483	#else	2816	#else
2484	write (evpipe [1], &(evpipe [1]), 1);	2817	write (evpipe [1], &(evpipe [1]), 1);
2485	#endif	2818	#endif
…		…
2531	sig_pending = 0;	2864	sig_pending = 0;
2532		2865
2533	ECB_MEMORY_FENCE;	2866	ECB_MEMORY_FENCE;
2534		2867
2535	for (i = EV_NSIG - 1; i--; )	2868	for (i = EV_NSIG - 1; i--; )
2536	if (expect_false (signals [i].pending))	2869	if (ecb_expect_false (signals [i].pending))
2537	ev_feed_signal_event (EV_A_ i + 1);	2870	ev_feed_signal_event (EV_A_ i + 1);
2538	}	2871	}
2539	#endif	2872	#endif
2540		2873
2541	#if EV_ASYNC_ENABLE	2874	#if EV_ASYNC_ENABLE
…		…
2557	}	2890	}
2558		2891
2559	/*****************************************************************************/	2892	/*****************************************************************************/
2560		2893
2561	void	2894	void
2562	ev_feed_signal (int signum) EV_THROW	2895	ev_feed_signal (int signum) EV_NOEXCEPT
2563	{	2896	{
2564	#if EV_MULTIPLICITY	2897	#if EV_MULTIPLICITY
2565	EV_P;	2898	EV_P;
2566	ECB_MEMORY_FENCE_ACQUIRE;	2899	ECB_MEMORY_FENCE_ACQUIRE;
2567	EV_A = signals [signum - 1].loop;	2900	EV_A = signals [signum - 1].loop;
…		…
2582	#endif	2915	#endif
2583		2916
2584	ev_feed_signal (signum);	2917	ev_feed_signal (signum);
2585	}	2918	}
2586		2919
2587	noinline	2920	ecb_noinline
2588	void	2921	void
2589	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2922	ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2590	{	2923	{
2591	WL w;	2924	WL w;
2592		2925
2593	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2926	if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2594	return;	2927	return;
2595		2928
2596	--signum;	2929	--signum;
2597		2930
2598	#if EV_MULTIPLICITY	2931	#if EV_MULTIPLICITY
2599	/* it is permissible to try to feed a signal to the wrong loop */	2932	/* it is permissible to try to feed a signal to the wrong loop */
2600	/* or, likely more useful, feeding a signal nobody is waiting for */	2933	/* or, likely more useful, feeding a signal nobody is waiting for */
2601		2934
2602	if (expect_false (signals [signum].loop != EV_A))	2935	if (ecb_expect_false (signals [signum].loop != EV_A))
2603	return;	2936	return;
2604	#endif	2937	#endif
2605		2938
2606	signals [signum].pending = 0;	2939	signals [signum].pending = 0;
2607	ECB_MEMORY_FENCE_RELEASE;	2940	ECB_MEMORY_FENCE_RELEASE;
…		…
2691		3024
2692	#endif	3025	#endif
2693		3026
2694	/*****************************************************************************/	3027	/*****************************************************************************/
2695		3028
		3029	#if EV_USE_TIMERFD
		3030
		3031	static void periodics_reschedule (EV_P);
		3032
		3033	static void
		3034	timerfdcb (EV_P_ ev_io *iow, int revents)
		3035	{
		3036	struct itimerspec its = { 0 };
		3037
		3038	its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
		3039	timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
		3040
		3041	ev_rt_now = ev_time ();
		3042	/* periodics_reschedule only needs ev_rt_now */
		3043	/* but maybe in the future we want the full treatment. */
		3044	/*
		3045	now_floor = EV_TS_CONST (0.);
		3046	time_update (EV_A_ EV_TSTAMP_HUGE);
		3047	*/
		3048	#if EV_PERIODIC_ENABLE
		3049	periodics_reschedule (EV_A);
		3050	#endif
		3051	}
		3052
		3053	ecb_noinline ecb_cold
		3054	static void
		3055	evtimerfd_init (EV_P)
		3056	{
		3057	if (!ev_is_active (&timerfd_w))
		3058	{
		3059	timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
		3060
		3061	if (timerfd >= 0)
		3062	{
		3063	fd_intern (timerfd); /* just to be sure */
		3064
		3065	ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
		3066	ev_set_priority (&timerfd_w, EV_MINPRI);
		3067	ev_io_start (EV_A_ &timerfd_w);
		3068	ev_unref (EV_A); /* watcher should not keep loop alive */
		3069
		3070	/* (re-) arm timer */
		3071	timerfdcb (EV_A_ 0, 0);
		3072	}
		3073	}
		3074	}
		3075
		3076	#endif
		3077
		3078	/*****************************************************************************/
		3079
2696	#if EV_USE_IOCP	3080	#if EV_USE_IOCP
2697	# include "ev_iocp.c"	3081	# include "ev_iocp.c"
2698	#endif	3082	#endif
2699	#if EV_USE_PORT	3083	#if EV_USE_PORT
2700	# include "ev_port.c"	3084	# include "ev_port.c"
…		…
2703	# include "ev_kqueue.c"	3087	# include "ev_kqueue.c"
2704	#endif	3088	#endif
2705	#if EV_USE_EPOLL	3089	#if EV_USE_EPOLL
2706	# include "ev_epoll.c"	3090	# include "ev_epoll.c"
2707	#endif	3091	#endif
		3092	#if EV_USE_LINUXAIO
		3093	# include "ev_linuxaio.c"
		3094	#endif
		3095	#if EV_USE_IOURING
		3096	# include "ev_iouring.c"
		3097	#endif
2708	#if EV_USE_POLL	3098	#if EV_USE_POLL
2709	# include "ev_poll.c"	3099	# include "ev_poll.c"
2710	#endif	3100	#endif
2711	#if EV_USE_SELECT	3101	#if EV_USE_SELECT
2712	# include "ev_select.c"	3102	# include "ev_select.c"
2713	#endif	3103	#endif
2714		3104
2715	ecb_cold int	3105	ecb_cold int
2716	ev_version_major (void) EV_THROW	3106	ev_version_major (void) EV_NOEXCEPT
2717	{	3107	{
2718	return EV_VERSION_MAJOR;	3108	return EV_VERSION_MAJOR;
2719	}	3109	}
2720		3110
2721	ecb_cold int	3111	ecb_cold int
2722	ev_version_minor (void) EV_THROW	3112	ev_version_minor (void) EV_NOEXCEPT
2723	{	3113	{
2724	return EV_VERSION_MINOR;	3114	return EV_VERSION_MINOR;
2725	}	3115	}
2726		3116
2727	/* return true if we are running with elevated privileges and should ignore env variables */	3117	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2736	#endif	3126	#endif
2737	}	3127	}
2738		3128
2739	ecb_cold	3129	ecb_cold
2740	unsigned int	3130	unsigned int
2741	ev_supported_backends (void) EV_THROW	3131	ev_supported_backends (void) EV_NOEXCEPT
2742	{	3132	{
2743	unsigned int flags = 0;	3133	unsigned int flags = 0;
2744		3134
2745	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	3135	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2746	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	3136	if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2747	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;	3137	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2748	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;	3138	if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2749	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	3139	if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2750		3140	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		3141	if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
		3142
2751	return flags;	3143	return flags;
2752	}	3144	}
2753		3145
2754	ecb_cold	3146	ecb_cold
2755	unsigned int	3147	unsigned int
2756	ev_recommended_backends (void) EV_THROW	3148	ev_recommended_backends (void) EV_NOEXCEPT
2757	{	3149	{
2758	unsigned int flags = ev_supported_backends ();	3150	unsigned int flags = ev_supported_backends ();
2759		3151
2760	#ifndef __NetBSD__	3152	#ifndef __NetBSD__
2761	/* kqueue is borked on everything but netbsd apparently */	3153	/* kqueue is borked on everything but netbsd apparently */
…		…
2769	#endif	3161	#endif
2770	#ifdef __FreeBSD__	3162	#ifdef __FreeBSD__
2771	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */	3163	flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2772	#endif	3164	#endif
2773		3165
		3166	/* TODO: linuxaio is very experimental */
		3167	#if !EV_RECOMMEND_LINUXAIO
		3168	flags &= ~EVBACKEND_LINUXAIO;
		3169	#endif
		3170	/* TODO: linuxaio is super experimental */
		3171	#if !EV_RECOMMEND_IOURING
		3172	flags &= ~EVBACKEND_IOURING;
		3173	#endif
		3174
2774	return flags;	3175	return flags;
2775	}	3176	}
2776		3177
2777	ecb_cold	3178	ecb_cold
2778	unsigned int	3179	unsigned int
2779	ev_embeddable_backends (void) EV_THROW	3180	ev_embeddable_backends (void) EV_NOEXCEPT
2780	{	3181	{
2781	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	3182	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2782		3183
2783	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	3184	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2784	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	3185	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2785	flags &= ~EVBACKEND_EPOLL;	3186	flags &= ~EVBACKEND_EPOLL;
2786		3187
		3188	/* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
		3189
2787	return flags;	3190	return flags;
2788	}	3191	}
2789		3192
2790	unsigned int	3193	unsigned int
2791	ev_backend (EV_P) EV_THROW	3194	ev_backend (EV_P) EV_NOEXCEPT
2792	{	3195	{
2793	return backend;	3196	return backend;
2794	}	3197	}
2795		3198
2796	#if EV_FEATURE_API	3199	#if EV_FEATURE_API
2797	unsigned int	3200	unsigned int
2798	ev_iteration (EV_P) EV_THROW	3201	ev_iteration (EV_P) EV_NOEXCEPT
2799	{	3202	{
2800	return loop_count;	3203	return loop_count;
2801	}	3204	}
2802		3205
2803	unsigned int	3206	unsigned int
2804	ev_depth (EV_P) EV_THROW	3207	ev_depth (EV_P) EV_NOEXCEPT
2805	{	3208	{
2806	return loop_depth;	3209	return loop_depth;
2807	}	3210	}
2808		3211
2809	void	3212	void
2810	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	3213	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2811	{	3214	{
2812	io_blocktime = interval;	3215	io_blocktime = interval;
2813	}	3216	}
2814		3217
2815	void	3218	void
2816	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	3219	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2817	{	3220	{
2818	timeout_blocktime = interval;	3221	timeout_blocktime = interval;
2819	}	3222	}
2820		3223
2821	void	3224	void
2822	ev_set_userdata (EV_P_ void *data) EV_THROW	3225	ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2823	{	3226	{
2824	userdata = data;	3227	userdata = data;
2825	}	3228	}
2826		3229
2827	void *	3230	void *
2828	ev_userdata (EV_P) EV_THROW	3231	ev_userdata (EV_P) EV_NOEXCEPT
2829	{	3232	{
2830	return userdata;	3233	return userdata;
2831	}	3234	}
2832		3235
2833	void	3236	void
2834	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW	3237	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2835	{	3238	{
2836	invoke_cb = invoke_pending_cb;	3239	invoke_cb = invoke_pending_cb;
2837	}	3240	}
2838		3241
2839	void	3242	void
2840	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW	3243	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2841	{	3244	{
2842	release_cb = release;	3245	release_cb = release;
2843	acquire_cb = acquire;	3246	acquire_cb = acquire;
2844	}	3247	}
2845	#endif	3248	#endif
2846		3249
2847	/* initialise a loop structure, must be zero-initialised */	3250	/* initialise a loop structure, must be zero-initialised */
2848	noinline ecb_cold	3251	ecb_noinline ecb_cold
2849	static void	3252	static void
2850	loop_init (EV_P_ unsigned int flags) EV_THROW	3253	loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2851	{	3254	{
2852	if (!backend)	3255	if (!backend)
2853	{	3256	{
2854	origflags = flags;	3257	origflags = flags;
2855		3258
…		…
2908	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	3311	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2909	#endif	3312	#endif
2910	#if EV_USE_SIGNALFD	3313	#if EV_USE_SIGNALFD
2911	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	3314	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2912	#endif	3315	#endif
		3316	#if EV_USE_TIMERFD
		3317	timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
		3318	#endif
2913		3319
2914	if (!(flags & EVBACKEND_MASK))	3320	if (!(flags & EVBACKEND_MASK))
2915	flags |= ev_recommended_backends ();	3321	flags |= ev_recommended_backends ();
2916		3322
2917	#if EV_USE_IOCP	3323	#if EV_USE_IOCP
2918	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);	3324	if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2919	#endif	3325	#endif
2920	#if EV_USE_PORT	3326	#if EV_USE_PORT
2921	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);	3327	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2922	#endif	3328	#endif
2923	#if EV_USE_KQUEUE	3329	#if EV_USE_KQUEUE
2924	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);	3330	if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
		3331	#endif
		3332	#if EV_USE_IOURING
		3333	if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
		3334	#endif
		3335	#if EV_USE_LINUXAIO
		3336	if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2925	#endif	3337	#endif
2926	#if EV_USE_EPOLL	3338	#if EV_USE_EPOLL
2927	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);	3339	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2928	#endif	3340	#endif
2929	#if EV_USE_POLL	3341	#if EV_USE_POLL
2930	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);	3342	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2931	#endif	3343	#endif
2932	#if EV_USE_SELECT	3344	#if EV_USE_SELECT
2933	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);	3345	if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2934	#endif	3346	#endif
2935		3347
2936	ev_prepare_init (&pending_w, pendingcb);	3348	ev_prepare_init (&pending_w, pendingcb);
2937		3349
2938	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3350	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
…		…
2955	return;	3367	return;
2956	#endif	3368	#endif
2957		3369
2958	#if EV_CLEANUP_ENABLE	3370	#if EV_CLEANUP_ENABLE
2959	/* queue cleanup watchers (and execute them) */	3371	/* queue cleanup watchers (and execute them) */
2960	if (expect_false (cleanupcnt))	3372	if (ecb_expect_false (cleanupcnt))
2961	{	3373	{
2962	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);	3374	queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2963	EV_INVOKE_PENDING;	3375	EV_INVOKE_PENDING;
2964	}	3376	}
2965	#endif	3377	#endif
…		…
2984	#if EV_USE_SIGNALFD	3396	#if EV_USE_SIGNALFD
2985	if (ev_is_active (&sigfd_w))	3397	if (ev_is_active (&sigfd_w))
2986	close (sigfd);	3398	close (sigfd);
2987	#endif	3399	#endif
2988		3400
		3401	#if EV_USE_TIMERFD
		3402	if (ev_is_active (&timerfd_w))
		3403	close (timerfd);
		3404	#endif
		3405
2989	#if EV_USE_INOTIFY	3406	#if EV_USE_INOTIFY
2990	if (fs_fd >= 0)	3407	if (fs_fd >= 0)
2991	close (fs_fd);	3408	close (fs_fd);
2992	#endif	3409	#endif
2993		3410
2994	if (backend_fd >= 0)	3411	if (backend_fd >= 0)
2995	close (backend_fd);	3412	close (backend_fd);
2996		3413
2997	#if EV_USE_IOCP	3414	#if EV_USE_IOCP
2998	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);	3415	if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2999	#endif	3416	#endif
3000	#if EV_USE_PORT	3417	#if EV_USE_PORT
3001	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);	3418	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3002	#endif	3419	#endif
3003	#if EV_USE_KQUEUE	3420	#if EV_USE_KQUEUE
3004	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);	3421	if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
		3422	#endif
		3423	#if EV_USE_IOURING
		3424	if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
		3425	#endif
		3426	#if EV_USE_LINUXAIO
		3427	if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3005	#endif	3428	#endif
3006	#if EV_USE_EPOLL	3429	#if EV_USE_EPOLL
3007	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);	3430	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3008	#endif	3431	#endif
3009	#if EV_USE_POLL	3432	#if EV_USE_POLL
3010	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);	3433	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3011	#endif	3434	#endif
3012	#if EV_USE_SELECT	3435	#if EV_USE_SELECT
3013	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);	3436	if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3014	#endif	3437	#endif
3015		3438
3016	for (i = NUMPRI; i--; )	3439	for (i = NUMPRI; i--; )
3017	{	3440	{
3018	array_free (pending, [i]);	3441	array_free (pending, [i]);
…		…
3060		3483
3061	inline_size void	3484	inline_size void
3062	loop_fork (EV_P)	3485	loop_fork (EV_P)
3063	{	3486	{
3064	#if EV_USE_PORT	3487	#if EV_USE_PORT
3065	if (backend == EVBACKEND_PORT ) port_fork (EV_A);	3488	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3066	#endif	3489	#endif
3067	#if EV_USE_KQUEUE	3490	#if EV_USE_KQUEUE
3068	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);	3491	if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
		3492	#endif
		3493	#if EV_USE_IOURING
		3494	if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
		3495	#endif
		3496	#if EV_USE_LINUXAIO
		3497	if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3069	#endif	3498	#endif
3070	#if EV_USE_EPOLL	3499	#if EV_USE_EPOLL
3071	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);	3500	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3072	#endif	3501	#endif
3073	#if EV_USE_INOTIFY	3502	#if EV_USE_INOTIFY
3074	infy_fork (EV_A);	3503	infy_fork (EV_A);
3075	#endif	3504	#endif
3076		3505
		3506	if (postfork != 2)
		3507	{
		3508	#if EV_USE_SIGNALFD
		3509	/* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
		3510	#endif
		3511
		3512	#if EV_USE_TIMERFD
		3513	if (ev_is_active (&timerfd_w))
		3514	{
		3515	ev_ref (EV_A);
		3516	ev_io_stop (EV_A_ &timerfd_w);
		3517
		3518	close (timerfd);
		3519	timerfd = -2;
		3520
		3521	evtimerfd_init (EV_A);
		3522	/* reschedule periodics, in case we missed something */
		3523	ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
		3524	}
		3525	#endif
		3526
3077	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3527	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3078	if (ev_is_active (&pipe_w) && postfork != 2)	3528	if (ev_is_active (&pipe_w))
3079	{	3529	{
3080	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	3530	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3081		3531
3082	ev_ref (EV_A);	3532	ev_ref (EV_A);
3083	ev_io_stop (EV_A_ &pipe_w);	3533	ev_io_stop (EV_A_ &pipe_w);
3084		3534
3085	if (evpipe [0] >= 0)	3535	if (evpipe [0] >= 0)
3086	EV_WIN32_CLOSE_FD (evpipe [0]);	3536	EV_WIN32_CLOSE_FD (evpipe [0]);
3087		3537
3088	evpipe_init (EV_A);	3538	evpipe_init (EV_A);
3089	/* iterate over everything, in case we missed something before */	3539	/* iterate over everything, in case we missed something before */
3090	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3540	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		3541	}
		3542	#endif
3091	}	3543	}
3092	#endif
3093		3544
3094	postfork = 0;	3545	postfork = 0;
3095	}	3546	}
3096		3547
3097	#if EV_MULTIPLICITY	3548	#if EV_MULTIPLICITY
3098		3549
3099	ecb_cold	3550	ecb_cold
3100	struct ev_loop *	3551	struct ev_loop *
3101	ev_loop_new (unsigned int flags) EV_THROW	3552	ev_loop_new (unsigned int flags) EV_NOEXCEPT
3102	{	3553	{
3103	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3554	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3104		3555
3105	memset (EV_A, 0, sizeof (struct ev_loop));	3556	memset (EV_A, 0, sizeof (struct ev_loop));
3106	loop_init (EV_A_ flags);	3557	loop_init (EV_A_ flags);
…		…
3113	}	3564	}
3114		3565
3115	#endif /* multiplicity */	3566	#endif /* multiplicity */
3116		3567
3117	#if EV_VERIFY	3568	#if EV_VERIFY
3118	noinline ecb_cold	3569	ecb_noinline ecb_cold
3119	static void	3570	static void
3120	verify_watcher (EV_P_ W w)	3571	verify_watcher (EV_P_ W w)
3121	{	3572	{
3122	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	3573	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3123		3574
3124	if (w->pending)	3575	if (w->pending)
3125	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	3576	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3126	}	3577	}
3127		3578
3128	noinline ecb_cold	3579	ecb_noinline ecb_cold
3129	static void	3580	static void
3130	verify_heap (EV_P_ ANHE *heap, int N)	3581	verify_heap (EV_P_ ANHE *heap, int N)
3131	{	3582	{
3132	int i;	3583	int i;
3133		3584
…		…
3139		3590
3140	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3591	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3141	}	3592	}
3142	}	3593	}
3143		3594
3144	noinline ecb_cold	3595	ecb_noinline ecb_cold
3145	static void	3596	static void
3146	array_verify (EV_P_ W *ws, int cnt)	3597	array_verify (EV_P_ W *ws, int cnt)
3147	{	3598	{
3148	while (cnt--)	3599	while (cnt--)
3149	{	3600	{
…		…
3153	}	3604	}
3154	#endif	3605	#endif
3155		3606
3156	#if EV_FEATURE_API	3607	#if EV_FEATURE_API
3157	void ecb_cold	3608	void ecb_cold
3158	ev_verify (EV_P) EV_THROW	3609	ev_verify (EV_P) EV_NOEXCEPT
3159	{	3610	{
3160	#if EV_VERIFY	3611	#if EV_VERIFY
3161	int i;	3612	int i;
3162	WL w, w2;	3613	WL w, w2;
3163		3614
…		…
3244	ecb_cold	3695	ecb_cold
3245	struct ev_loop *	3696	struct ev_loop *
3246	#else	3697	#else
3247	int	3698	int
3248	#endif	3699	#endif
3249	ev_default_loop (unsigned int flags) EV_THROW	3700	ev_default_loop (unsigned int flags) EV_NOEXCEPT
3250	{	3701	{
3251	if (!ev_default_loop_ptr)	3702	if (!ev_default_loop_ptr)
3252	{	3703	{
3253	#if EV_MULTIPLICITY	3704	#if EV_MULTIPLICITY
3254	EV_P = ev_default_loop_ptr = &default_loop_struct;	3705	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
3273		3724
3274	return ev_default_loop_ptr;	3725	return ev_default_loop_ptr;
3275	}	3726	}
3276		3727
3277	void	3728	void
3278	ev_loop_fork (EV_P) EV_THROW	3729	ev_loop_fork (EV_P) EV_NOEXCEPT
3279	{	3730	{
3280	postfork = 1;	3731	postfork = 1;
3281	}	3732	}
3282		3733
3283	/*****************************************************************************/	3734	/*****************************************************************************/
…		…
3287	{	3738	{
3288	EV_CB_INVOKE ((W)w, revents);	3739	EV_CB_INVOKE ((W)w, revents);
3289	}	3740	}
3290		3741
3291	unsigned int	3742	unsigned int
3292	ev_pending_count (EV_P) EV_THROW	3743	ev_pending_count (EV_P) EV_NOEXCEPT
3293	{	3744	{
3294	int pri;	3745	int pri;
3295	unsigned int count = 0;	3746	unsigned int count = 0;
3296		3747
3297	for (pri = NUMPRI; pri--; )	3748	for (pri = NUMPRI; pri--; )
3298	count += pendingcnt [pri];	3749	count += pendingcnt [pri];
3299		3750
3300	return count;	3751	return count;
3301	}	3752	}
3302		3753
3303	noinline	3754	ecb_noinline
3304	void	3755	void
3305	ev_invoke_pending (EV_P)	3756	ev_invoke_pending (EV_P)
3306	{	3757	{
3307	pendingpri = NUMPRI;	3758	pendingpri = NUMPRI;
3308		3759
3309	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3760	do
3310	{	3761	{
3311	--pendingpri;	3762	--pendingpri;
3312		3763
		3764	/* pendingpri possibly gets modified in the inner loop */
3313	while (pendingcnt [pendingpri])	3765	while (pendingcnt [pendingpri])
3314	{	3766	{
3315	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];	3767	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3316		3768
3317	p->w->pending = 0;	3769	p->w->pending = 0;
3318	EV_CB_INVOKE (p->w, p->events);	3770	EV_CB_INVOKE (p->w, p->events);
3319	EV_FREQUENT_CHECK;	3771	EV_FREQUENT_CHECK;
3320	}	3772	}
3321	}	3773	}
		3774	while (pendingpri);
3322	}	3775	}
3323		3776
3324	#if EV_IDLE_ENABLE	3777	#if EV_IDLE_ENABLE
3325	/* make idle watchers pending. this handles the "call-idle */	3778	/* make idle watchers pending. this handles the "call-idle */
3326	/* only when higher priorities are idle" logic */	3779	/* only when higher priorities are idle" logic */
3327	inline_size void	3780	inline_size void
3328	idle_reify (EV_P)	3781	idle_reify (EV_P)
3329	{	3782	{
3330	if (expect_false (idleall))	3783	if (ecb_expect_false (idleall))
3331	{	3784	{
3332	int pri;	3785	int pri;
3333		3786
3334	for (pri = NUMPRI; pri--; )	3787	for (pri = NUMPRI; pri--; )
3335	{	3788	{
…		…
3365	{	3818	{
3366	ev_at (w) += w->repeat;	3819	ev_at (w) += w->repeat;
3367	if (ev_at (w) < mn_now)	3820	if (ev_at (w) < mn_now)
3368	ev_at (w) = mn_now;	3821	ev_at (w) = mn_now;
3369		3822
3370	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));	3823	assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3371		3824
3372	ANHE_at_cache (timers [HEAP0]);	3825	ANHE_at_cache (timers [HEAP0]);
3373	downheap (timers, timercnt, HEAP0);	3826	downheap (timers, timercnt, HEAP0);
3374	}	3827	}
3375	else	3828	else
…		…
3384	}	3837	}
3385	}	3838	}
3386		3839
3387	#if EV_PERIODIC_ENABLE	3840	#if EV_PERIODIC_ENABLE
3388		3841
3389	noinline	3842	ecb_noinline
3390	static void	3843	static void
3391	periodic_recalc (EV_P_ ev_periodic *w)	3844	periodic_recalc (EV_P_ ev_periodic *w)
3392	{	3845	{
3393	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3846	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3394	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);	3847	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
…		…
3397	while (at <= ev_rt_now)	3850	while (at <= ev_rt_now)
3398	{	3851	{
3399	ev_tstamp nat = at + w->interval;	3852	ev_tstamp nat = at + w->interval;
3400		3853
3401	/* when resolution fails us, we use ev_rt_now */	3854	/* when resolution fails us, we use ev_rt_now */
3402	if (expect_false (nat == at))	3855	if (ecb_expect_false (nat == at))
3403	{	3856	{
3404	at = ev_rt_now;	3857	at = ev_rt_now;
3405	break;	3858	break;
3406	}	3859	}
3407		3860
…		…
3453	}	3906	}
3454	}	3907	}
3455		3908
3456	/* simply recalculate all periodics */	3909	/* simply recalculate all periodics */
3457	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3910	/* TODO: maybe ensure that at least one event happens when jumping forward? */
3458	noinline ecb_cold	3911	ecb_noinline ecb_cold
3459	static void	3912	static void
3460	periodics_reschedule (EV_P)	3913	periodics_reschedule (EV_P)
3461	{	3914	{
3462	int i;	3915	int i;
3463		3916
…		…
3477	reheap (periodics, periodiccnt);	3930	reheap (periodics, periodiccnt);
3478	}	3931	}
3479	#endif	3932	#endif
3480		3933
3481	/* adjust all timers by a given offset */	3934	/* adjust all timers by a given offset */
3482	noinline ecb_cold	3935	ecb_noinline ecb_cold
3483	static void	3936	static void
3484	timers_reschedule (EV_P_ ev_tstamp adjust)	3937	timers_reschedule (EV_P_ ev_tstamp adjust)
3485	{	3938	{
3486	int i;	3939	int i;
3487		3940
…		…
3497	/* also detect if there was a timejump, and act accordingly */	3950	/* also detect if there was a timejump, and act accordingly */
3498	inline_speed void	3951	inline_speed void
3499	time_update (EV_P_ ev_tstamp max_block)	3952	time_update (EV_P_ ev_tstamp max_block)
3500	{	3953	{
3501	#if EV_USE_MONOTONIC	3954	#if EV_USE_MONOTONIC
3502	if (expect_true (have_monotonic))	3955	if (ecb_expect_true (have_monotonic))
3503	{	3956	{
3504	int i;	3957	int i;
3505	ev_tstamp odiff = rtmn_diff;	3958	ev_tstamp odiff = rtmn_diff;
3506		3959
3507	mn_now = get_clock ();	3960	mn_now = get_clock ();
3508		3961
3509	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */	3962	/* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3510	/* interpolate in the meantime */	3963	/* interpolate in the meantime */
3511	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	3964	if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3512	{	3965	{
3513	ev_rt_now = rtmn_diff + mn_now;	3966	ev_rt_now = rtmn_diff + mn_now;
3514	return;	3967	return;
3515	}	3968	}
3516		3969
…		…
3530	ev_tstamp diff;	3983	ev_tstamp diff;
3531	rtmn_diff = ev_rt_now - mn_now;	3984	rtmn_diff = ev_rt_now - mn_now;
3532		3985
3533	diff = odiff - rtmn_diff;	3986	diff = odiff - rtmn_diff;
3534		3987
3535	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))	3988	if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3536	return; /* all is well */	3989	return; /* all is well */
3537		3990
3538	ev_rt_now = ev_time ();	3991	ev_rt_now = ev_time ();
3539	mn_now = get_clock ();	3992	mn_now = get_clock ();
3540	now_floor = mn_now;	3993	now_floor = mn_now;
…		…
3549	else	4002	else
3550	#endif	4003	#endif
3551	{	4004	{
3552	ev_rt_now = ev_time ();	4005	ev_rt_now = ev_time ();
3553		4006
3554	if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))	4007	if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3555	{	4008	{
3556	/* adjust timers. this is easy, as the offset is the same for all of them */	4009	/* adjust timers. this is easy, as the offset is the same for all of them */
3557	timers_reschedule (EV_A_ ev_rt_now - mn_now);	4010	timers_reschedule (EV_A_ ev_rt_now - mn_now);
3558	#if EV_PERIODIC_ENABLE	4011	#if EV_PERIODIC_ENABLE
3559	periodics_reschedule (EV_A);	4012	periodics_reschedule (EV_A);
…		…
3582	#if EV_VERIFY >= 2	4035	#if EV_VERIFY >= 2
3583	ev_verify (EV_A);	4036	ev_verify (EV_A);
3584	#endif	4037	#endif
3585		4038
3586	#ifndef _WIN32	4039	#ifndef _WIN32
3587	if (expect_false (curpid)) /* penalise the forking check even more */	4040	if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3588	if (expect_false (getpid () != curpid))	4041	if (ecb_expect_false (getpid () != curpid))
3589	{	4042	{
3590	curpid = getpid ();	4043	curpid = getpid ();
3591	postfork = 1;	4044	postfork = 1;
3592	}	4045	}
3593	#endif	4046	#endif
3594		4047
3595	#if EV_FORK_ENABLE	4048	#if EV_FORK_ENABLE
3596	/* we might have forked, so queue fork handlers */	4049	/* we might have forked, so queue fork handlers */
3597	if (expect_false (postfork))	4050	if (ecb_expect_false (postfork))
3598	if (forkcnt)	4051	if (forkcnt)
3599	{	4052	{
3600	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);	4053	queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3601	EV_INVOKE_PENDING;	4054	EV_INVOKE_PENDING;
3602	}	4055	}
3603	#endif	4056	#endif
3604		4057
3605	#if EV_PREPARE_ENABLE	4058	#if EV_PREPARE_ENABLE
3606	/* queue prepare watchers (and execute them) */	4059	/* queue prepare watchers (and execute them) */
3607	if (expect_false (preparecnt))	4060	if (ecb_expect_false (preparecnt))
3608	{	4061	{
3609	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	4062	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3610	EV_INVOKE_PENDING;	4063	EV_INVOKE_PENDING;
3611	}	4064	}
3612	#endif	4065	#endif
3613		4066
3614	if (expect_false (loop_done))	4067	if (ecb_expect_false (loop_done))
3615	break;	4068	break;
3616		4069
3617	/* we might have forked, so reify kernel state if necessary */	4070	/* we might have forked, so reify kernel state if necessary */
3618	if (expect_false (postfork))	4071	if (ecb_expect_false (postfork))
3619	loop_fork (EV_A);	4072	loop_fork (EV_A);
3620		4073
3621	/* update fd-related kernel structures */	4074	/* update fd-related kernel structures */
3622	fd_reify (EV_A);	4075	fd_reify (EV_A);
3623		4076
…		…
3628		4081
3629	/* remember old timestamp for io_blocktime calculation */	4082	/* remember old timestamp for io_blocktime calculation */
3630	ev_tstamp prev_mn_now = mn_now;	4083	ev_tstamp prev_mn_now = mn_now;
3631		4084
3632	/* update time to cancel out callback processing overhead */	4085	/* update time to cancel out callback processing overhead */
3633	time_update (EV_A_ 1e100);	4086	time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3634		4087
3635	/* from now on, we want a pipe-wake-up */	4088	/* from now on, we want a pipe-wake-up */
3636	pipe_write_wanted = 1;	4089	pipe_write_wanted = 1;
3637		4090
3638	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */	4091	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3639		4092
3640	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	4093	if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3641	{	4094	{
3642	waittime = MAX_BLOCKTIME;	4095	waittime = EV_TS_CONST (MAX_BLOCKTIME);
		4096
		4097	#if EV_USE_TIMERFD
		4098	/* sleep a lot longer when we can reliably detect timejumps */
		4099	if (ecb_expect_true (timerfd >= 0))
		4100	waittime = EV_TS_CONST (MAX_BLOCKTIME2);
		4101	#endif
		4102	#if !EV_PERIODIC_ENABLE
		4103	/* without periodics but with monotonic clock there is no need */
		4104	/* for any time jump detection, so sleep longer */
		4105	if (ecb_expect_true (have_monotonic))
		4106	waittime = EV_TS_CONST (MAX_BLOCKTIME2);
		4107	#endif
3643		4108
3644	if (timercnt)	4109	if (timercnt)
3645	{	4110	{
3646	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;	4111	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3647	if (waittime > to) waittime = to;	4112	if (waittime > to) waittime = to;
…		…
3654	if (waittime > to) waittime = to;	4119	if (waittime > to) waittime = to;
3655	}	4120	}
3656	#endif	4121	#endif
3657		4122
3658	/* don't let timeouts decrease the waittime below timeout_blocktime */	4123	/* don't let timeouts decrease the waittime below timeout_blocktime */
3659	if (expect_false (waittime < timeout_blocktime))	4124	if (ecb_expect_false (waittime < timeout_blocktime))
3660	waittime = timeout_blocktime;	4125	waittime = timeout_blocktime;
3661		4126
3662	/* at this point, we NEED to wait, so we have to ensure */	4127	/* now there are two more special cases left, either we have
3663	/* to pass a minimum nonzero value to the backend */	4128	* already-expired timers, so we should not sleep, or we have timers
		4129	* that expire very soon, in which case we need to wait for a minimum
		4130	* amount of time for some event loop backends.
		4131	*/
3664	if (expect_false (waittime < backend_mintime))	4132	if (ecb_expect_false (waittime < backend_mintime))
		4133	waittime = waittime <= EV_TS_CONST (0.)
		4134	? EV_TS_CONST (0.)
3665	waittime = backend_mintime;	4135	: backend_mintime;
3666		4136
3667	/* extra check because io_blocktime is commonly 0 */	4137	/* extra check because io_blocktime is commonly 0 */
3668	if (expect_false (io_blocktime))	4138	if (ecb_expect_false (io_blocktime))
3669	{	4139	{
3670	sleeptime = io_blocktime - (mn_now - prev_mn_now);	4140	sleeptime = io_blocktime - (mn_now - prev_mn_now);
3671		4141
3672	if (sleeptime > waittime - backend_mintime)	4142	if (sleeptime > waittime - backend_mintime)
3673	sleeptime = waittime - backend_mintime;	4143	sleeptime = waittime - backend_mintime;
3674		4144
3675	if (expect_true (sleeptime > 0.))	4145	if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3676	{	4146	{
3677	ev_sleep (sleeptime);	4147	ev_sleep (sleeptime);
3678	waittime -= sleeptime;	4148	waittime -= sleeptime;
3679	}	4149	}
3680	}	4150	}
…		…
3694	{	4164	{
3695	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	4165	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3696	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	4166	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3697	}	4167	}
3698		4168
3699
3700	/* update ev_rt_now, do magic */	4169	/* update ev_rt_now, do magic */
3701	time_update (EV_A_ waittime + sleeptime);	4170	time_update (EV_A_ waittime + sleeptime);
3702	}	4171	}
3703		4172
3704	/* queue pending timers and reschedule them */	4173	/* queue pending timers and reschedule them */
…		…
3712	idle_reify (EV_A);	4181	idle_reify (EV_A);
3713	#endif	4182	#endif
3714		4183
3715	#if EV_CHECK_ENABLE	4184	#if EV_CHECK_ENABLE
3716	/* queue check watchers, to be executed first */	4185	/* queue check watchers, to be executed first */
3717	if (expect_false (checkcnt))	4186	if (ecb_expect_false (checkcnt))
3718	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	4187	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3719	#endif	4188	#endif
3720		4189
3721	EV_INVOKE_PENDING;	4190	EV_INVOKE_PENDING;
3722	}	4191	}
3723	while (expect_true (	4192	while (ecb_expect_true (
3724	activecnt	4193	activecnt
3725	&& !loop_done	4194	&& !loop_done
3726	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))	4195	&& !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3727	));	4196	));
3728		4197
…		…
3735		4204
3736	return activecnt;	4205	return activecnt;
3737	}	4206	}
3738		4207
3739	void	4208	void
3740	ev_break (EV_P_ int how) EV_THROW	4209	ev_break (EV_P_ int how) EV_NOEXCEPT
3741	{	4210	{
3742	loop_done = how;	4211	loop_done = how;
3743	}	4212	}
3744		4213
3745	void	4214	void
3746	ev_ref (EV_P) EV_THROW	4215	ev_ref (EV_P) EV_NOEXCEPT
3747	{	4216	{
3748	++activecnt;	4217	++activecnt;
3749	}	4218	}
3750		4219
3751	void	4220	void
3752	ev_unref (EV_P) EV_THROW	4221	ev_unref (EV_P) EV_NOEXCEPT
3753	{	4222	{
3754	--activecnt;	4223	--activecnt;
3755	}	4224	}
3756		4225
3757	void	4226	void
3758	ev_now_update (EV_P) EV_THROW	4227	ev_now_update (EV_P) EV_NOEXCEPT
3759	{	4228	{
3760	time_update (EV_A_ 1e100);	4229	time_update (EV_A_ EV_TSTAMP_HUGE);
3761	}	4230	}
3762		4231
3763	void	4232	void
3764	ev_suspend (EV_P) EV_THROW	4233	ev_suspend (EV_P) EV_NOEXCEPT
3765	{	4234	{
3766	ev_now_update (EV_A);	4235	ev_now_update (EV_A);
3767	}	4236	}
3768		4237
3769	void	4238	void
3770	ev_resume (EV_P) EV_THROW	4239	ev_resume (EV_P) EV_NOEXCEPT
3771	{	4240	{
3772	ev_tstamp mn_prev = mn_now;	4241	ev_tstamp mn_prev = mn_now;
3773		4242
3774	ev_now_update (EV_A);	4243	ev_now_update (EV_A);
3775	timers_reschedule (EV_A_ mn_now - mn_prev);	4244	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3792	inline_size void	4261	inline_size void
3793	wlist_del (WL *head, WL elem)	4262	wlist_del (WL *head, WL elem)
3794	{	4263	{
3795	while (*head)	4264	while (*head)
3796	{	4265	{
3797	if (expect_true (*head == elem))	4266	if (ecb_expect_true (*head == elem))
3798	{	4267	{
3799	*head = elem->next;	4268	*head = elem->next;
3800	break;	4269	break;
3801	}	4270	}
3802		4271
…		…
3814	w->pending = 0;	4283	w->pending = 0;
3815	}	4284	}
3816	}	4285	}
3817		4286
3818	int	4287	int
3819	ev_clear_pending (EV_P_ void *w) EV_THROW	4288	ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3820	{	4289	{
3821	W w_ = (W)w;	4290	W w_ = (W)w;
3822	int pending = w_->pending;	4291	int pending = w_->pending;
3823		4292
3824	if (expect_true (pending))	4293	if (ecb_expect_true (pending))
3825	{	4294	{
3826	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;	4295	ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3827	p->w = (W)&pending_w;	4296	p->w = (W)&pending_w;
3828	w_->pending = 0;	4297	w_->pending = 0;
3829	return p->events;	4298	return p->events;
…		…
3856	w->active = 0;	4325	w->active = 0;
3857	}	4326	}
3858		4327
3859	/*****************************************************************************/	4328	/*****************************************************************************/
3860		4329
3861	noinline	4330	ecb_noinline
3862	void	4331	void
3863	ev_io_start (EV_P_ ev_io *w) EV_THROW	4332	ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3864	{	4333	{
3865	int fd = w->fd;	4334	int fd = w->fd;
3866		4335
3867	if (expect_false (ev_is_active (w)))	4336	if (ecb_expect_false (ev_is_active (w)))
3868	return;	4337	return;
3869		4338
3870	assert (("libev: ev_io_start called with negative fd", fd >= 0));	4339	assert (("libev: ev_io_start called with negative fd", fd >= 0));
3871	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));	4340	assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3872		4341
		4342	#if EV_VERIFY >= 2
		4343	assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
		4344	#endif
3873	EV_FREQUENT_CHECK;	4345	EV_FREQUENT_CHECK;
3874		4346
3875	ev_start (EV_A_ (W)w, 1);	4347	ev_start (EV_A_ (W)w, 1);
3876	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	4348	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3877	wlist_add (&anfds[fd].head, (WL)w);	4349	wlist_add (&anfds[fd].head, (WL)w);
3878		4350
3879	/* common bug, apparently */	4351	/* common bug, apparently */
3880	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));	4352	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3881		4353
…		…
3883	w->events &= ~EV__IOFDSET;	4355	w->events &= ~EV__IOFDSET;
3884		4356
3885	EV_FREQUENT_CHECK;	4357	EV_FREQUENT_CHECK;
3886	}	4358	}
3887		4359
3888	noinline	4360	ecb_noinline
3889	void	4361	void
3890	ev_io_stop (EV_P_ ev_io *w) EV_THROW	4362	ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3891	{	4363	{
3892	clear_pending (EV_A_ (W)w);	4364	clear_pending (EV_A_ (W)w);
3893	if (expect_false (!ev_is_active (w)))	4365	if (ecb_expect_false (!ev_is_active (w)))
3894	return;	4366	return;
3895		4367
3896	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	4368	assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3897		4369
		4370	#if EV_VERIFY >= 2
		4371	assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
		4372	#endif
3898	EV_FREQUENT_CHECK;	4373	EV_FREQUENT_CHECK;
3899		4374
3900	wlist_del (&anfds[w->fd].head, (WL)w);	4375	wlist_del (&anfds[w->fd].head, (WL)w);
3901	ev_stop (EV_A_ (W)w);	4376	ev_stop (EV_A_ (W)w);
3902		4377
3903	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	4378	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3904		4379
3905	EV_FREQUENT_CHECK;	4380	EV_FREQUENT_CHECK;
3906	}	4381	}
3907		4382
3908	noinline	4383	ecb_noinline
3909	void	4384	void
3910	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	4385	ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3911	{	4386	{
3912	if (expect_false (ev_is_active (w)))	4387	if (ecb_expect_false (ev_is_active (w)))
3913	return;	4388	return;
3914		4389
3915	ev_at (w) += mn_now;	4390	ev_at (w) += mn_now;
3916		4391
3917	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	4392	assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3918		4393
3919	EV_FREQUENT_CHECK;	4394	EV_FREQUENT_CHECK;
3920		4395
3921	++timercnt;	4396	++timercnt;
3922	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);	4397	ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3923	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);	4398	array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3924	ANHE_w (timers [ev_active (w)]) = (WT)w;	4399	ANHE_w (timers [ev_active (w)]) = (WT)w;
3925	ANHE_at_cache (timers [ev_active (w)]);	4400	ANHE_at_cache (timers [ev_active (w)]);
3926	upheap (timers, ev_active (w));	4401	upheap (timers, ev_active (w));
3927		4402
3928	EV_FREQUENT_CHECK;	4403	EV_FREQUENT_CHECK;
3929		4404
3930	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	4405	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3931	}	4406	}
3932		4407
3933	noinline	4408	ecb_noinline
3934	void	4409	void
3935	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	4410	ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3936	{	4411	{
3937	clear_pending (EV_A_ (W)w);	4412	clear_pending (EV_A_ (W)w);
3938	if (expect_false (!ev_is_active (w)))	4413	if (ecb_expect_false (!ev_is_active (w)))
3939	return;	4414	return;
3940		4415
3941	EV_FREQUENT_CHECK;	4416	EV_FREQUENT_CHECK;
3942		4417
3943	{	4418	{
…		…
3945		4420
3946	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));	4421	assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3947		4422
3948	--timercnt;	4423	--timercnt;
3949		4424
3950	if (expect_true (active < timercnt + HEAP0))	4425	if (ecb_expect_true (active < timercnt + HEAP0))
3951	{	4426	{
3952	timers [active] = timers [timercnt + HEAP0];	4427	timers [active] = timers [timercnt + HEAP0];
3953	adjustheap (timers, timercnt, active);	4428	adjustheap (timers, timercnt, active);
3954	}	4429	}
3955	}	4430	}
…		…
3959	ev_stop (EV_A_ (W)w);	4434	ev_stop (EV_A_ (W)w);
3960		4435
3961	EV_FREQUENT_CHECK;	4436	EV_FREQUENT_CHECK;
3962	}	4437	}
3963		4438
3964	noinline	4439	ecb_noinline
3965	void	4440	void
3966	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	4441	ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3967	{	4442	{
3968	EV_FREQUENT_CHECK;	4443	EV_FREQUENT_CHECK;
3969		4444
3970	clear_pending (EV_A_ (W)w);	4445	clear_pending (EV_A_ (W)w);
3971		4446
…		…
3988		4463
3989	EV_FREQUENT_CHECK;	4464	EV_FREQUENT_CHECK;
3990	}	4465	}
3991		4466
3992	ev_tstamp	4467	ev_tstamp
3993	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW	4468	ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3994	{	4469	{
3995	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	4470	return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3996	}	4471	}
3997		4472
3998	#if EV_PERIODIC_ENABLE	4473	#if EV_PERIODIC_ENABLE
3999	noinline	4474	ecb_noinline
4000	void	4475	void
4001	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	4476	ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4002	{	4477	{
4003	if (expect_false (ev_is_active (w)))	4478	if (ecb_expect_false (ev_is_active (w)))
4004	return;	4479	return;
		4480
		4481	#if EV_USE_TIMERFD
		4482	if (timerfd == -2)
		4483	evtimerfd_init (EV_A);
		4484	#endif
4005		4485
4006	if (w->reschedule_cb)	4486	if (w->reschedule_cb)
4007	ev_at (w) = w->reschedule_cb (w, ev_rt_now);	4487	ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4008	else if (w->interval)	4488	else if (w->interval)
4009	{	4489	{
…		…
4015		4495
4016	EV_FREQUENT_CHECK;	4496	EV_FREQUENT_CHECK;
4017		4497
4018	++periodiccnt;	4498	++periodiccnt;
4019	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);	4499	ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4020	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);	4500	array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4021	ANHE_w (periodics [ev_active (w)]) = (WT)w;	4501	ANHE_w (periodics [ev_active (w)]) = (WT)w;
4022	ANHE_at_cache (periodics [ev_active (w)]);	4502	ANHE_at_cache (periodics [ev_active (w)]);
4023	upheap (periodics, ev_active (w));	4503	upheap (periodics, ev_active (w));
4024		4504
4025	EV_FREQUENT_CHECK;	4505	EV_FREQUENT_CHECK;
4026		4506
4027	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	4507	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4028	}	4508	}
4029		4509
4030	noinline	4510	ecb_noinline
4031	void	4511	void
4032	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4512	ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4033	{	4513	{
4034	clear_pending (EV_A_ (W)w);	4514	clear_pending (EV_A_ (W)w);
4035	if (expect_false (!ev_is_active (w)))	4515	if (ecb_expect_false (!ev_is_active (w)))
4036	return;	4516	return;
4037		4517
4038	EV_FREQUENT_CHECK;	4518	EV_FREQUENT_CHECK;
4039		4519
4040	{	4520	{
…		…
4042		4522
4043	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));	4523	assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4044		4524
4045	--periodiccnt;	4525	--periodiccnt;
4046		4526
4047	if (expect_true (active < periodiccnt + HEAP0))	4527	if (ecb_expect_true (active < periodiccnt + HEAP0))
4048	{	4528	{
4049	periodics [active] = periodics [periodiccnt + HEAP0];	4529	periodics [active] = periodics [periodiccnt + HEAP0];
4050	adjustheap (periodics, periodiccnt, active);	4530	adjustheap (periodics, periodiccnt, active);
4051	}	4531	}
4052	}	4532	}
…		…
4054	ev_stop (EV_A_ (W)w);	4534	ev_stop (EV_A_ (W)w);
4055		4535
4056	EV_FREQUENT_CHECK;	4536	EV_FREQUENT_CHECK;
4057	}	4537	}
4058		4538
4059	noinline	4539	ecb_noinline
4060	void	4540	void
4061	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4541	ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4062	{	4542	{
4063	/* TODO: use adjustheap and recalculation */	4543	/* TODO: use adjustheap and recalculation */
4064	ev_periodic_stop (EV_A_ w);	4544	ev_periodic_stop (EV_A_ w);
4065	ev_periodic_start (EV_A_ w);	4545	ev_periodic_start (EV_A_ w);
4066	}	4546	}
…		…
4070	# define SA_RESTART 0	4550	# define SA_RESTART 0
4071	#endif	4551	#endif
4072		4552
4073	#if EV_SIGNAL_ENABLE	4553	#if EV_SIGNAL_ENABLE
4074		4554
4075	noinline	4555	ecb_noinline
4076	void	4556	void
4077	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4557	ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4078	{	4558	{
4079	if (expect_false (ev_is_active (w)))	4559	if (ecb_expect_false (ev_is_active (w)))
4080	return;	4560	return;
4081		4561
4082	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	4562	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4083		4563
4084	#if EV_MULTIPLICITY	4564	#if EV_MULTIPLICITY
…		…
4153	}	4633	}
4154		4634
4155	EV_FREQUENT_CHECK;	4635	EV_FREQUENT_CHECK;
4156	}	4636	}
4157		4637
4158	noinline	4638	ecb_noinline
4159	void	4639	void
4160	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4640	ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4161	{	4641	{
4162	clear_pending (EV_A_ (W)w);	4642	clear_pending (EV_A_ (W)w);
4163	if (expect_false (!ev_is_active (w)))	4643	if (ecb_expect_false (!ev_is_active (w)))
4164	return;	4644	return;
4165		4645
4166	EV_FREQUENT_CHECK;	4646	EV_FREQUENT_CHECK;
4167		4647
4168	wlist_del (&signals [w->signum - 1].head, (WL)w);	4648	wlist_del (&signals [w->signum - 1].head, (WL)w);
…		…
4196	#endif	4676	#endif
4197		4677
4198	#if EV_CHILD_ENABLE	4678	#if EV_CHILD_ENABLE
4199		4679
4200	void	4680	void
4201	ev_child_start (EV_P_ ev_child *w) EV_THROW	4681	ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4202	{	4682	{
4203	#if EV_MULTIPLICITY	4683	#if EV_MULTIPLICITY
4204	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	4684	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4205	#endif	4685	#endif
4206	if (expect_false (ev_is_active (w)))	4686	if (ecb_expect_false (ev_is_active (w)))
4207	return;	4687	return;
4208		4688
4209	EV_FREQUENT_CHECK;	4689	EV_FREQUENT_CHECK;
4210		4690
4211	ev_start (EV_A_ (W)w, 1);	4691	ev_start (EV_A_ (W)w, 1);
…		…
4213		4693
4214	EV_FREQUENT_CHECK;	4694	EV_FREQUENT_CHECK;
4215	}	4695	}
4216		4696
4217	void	4697	void
4218	ev_child_stop (EV_P_ ev_child *w) EV_THROW	4698	ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4219	{	4699	{
4220	clear_pending (EV_A_ (W)w);	4700	clear_pending (EV_A_ (W)w);
4221	if (expect_false (!ev_is_active (w)))	4701	if (ecb_expect_false (!ev_is_active (w)))
4222	return;	4702	return;
4223		4703
4224	EV_FREQUENT_CHECK;	4704	EV_FREQUENT_CHECK;
4225		4705
4226	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);	4706	wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
…		…
4240		4720
4241	#define DEF_STAT_INTERVAL 5.0074891	4721	#define DEF_STAT_INTERVAL 5.0074891
4242	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4722	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4243	#define MIN_STAT_INTERVAL 0.1074891	4723	#define MIN_STAT_INTERVAL 0.1074891
4244		4724
4245	noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4725	ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4246		4726
4247	#if EV_USE_INOTIFY	4727	#if EV_USE_INOTIFY
4248		4728
4249	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */	4729	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4250	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4730	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4251		4731
4252	noinline	4732	ecb_noinline
4253	static void	4733	static void
4254	infy_add (EV_P_ ev_stat *w)	4734	infy_add (EV_P_ ev_stat *w)
4255	{	4735	{
4256	w->wd = inotify_add_watch (fs_fd, w->path,	4736	w->wd = inotify_add_watch (fs_fd, w->path,
4257	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4737	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
…		…
4322	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4802	if (ev_is_active (&w->timer)) ev_ref (EV_A);
4323	ev_timer_again (EV_A_ &w->timer);	4803	ev_timer_again (EV_A_ &w->timer);
4324	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4804	if (ev_is_active (&w->timer)) ev_unref (EV_A);
4325	}	4805	}
4326		4806
4327	noinline	4807	ecb_noinline
4328	static void	4808	static void
4329	infy_del (EV_P_ ev_stat *w)	4809	infy_del (EV_P_ ev_stat *w)
4330	{	4810	{
4331	int slot;	4811	int slot;
4332	int wd = w->wd;	4812	int wd = w->wd;
…		…
4340		4820
4341	/* remove this watcher, if others are watching it, they will rearm */	4821	/* remove this watcher, if others are watching it, they will rearm */
4342	inotify_rm_watch (fs_fd, wd);	4822	inotify_rm_watch (fs_fd, wd);
4343	}	4823	}
4344		4824
4345	noinline	4825	ecb_noinline
4346	static void	4826	static void
4347	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4827	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4348	{	4828	{
4349	if (slot < 0)	4829	if (slot < 0)
4350	/* overflow, need to check for all hash slots */	4830	/* overflow, need to check for all hash slots */
…		…
4488	#else	4968	#else
4489	# define EV_LSTAT(p,b) lstat (p, b)	4969	# define EV_LSTAT(p,b) lstat (p, b)
4490	#endif	4970	#endif
4491		4971
4492	void	4972	void
4493	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW	4973	ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4494	{	4974	{
4495	if (lstat (w->path, &w->attr) < 0)	4975	if (lstat (w->path, &w->attr) < 0)
4496	w->attr.st_nlink = 0;	4976	w->attr.st_nlink = 0;
4497	else if (!w->attr.st_nlink)	4977	else if (!w->attr.st_nlink)
4498	w->attr.st_nlink = 1;	4978	w->attr.st_nlink = 1;
4499	}	4979	}
4500		4980
4501	noinline	4981	ecb_noinline
4502	static void	4982	static void
4503	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4983	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4504	{	4984	{
4505	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4985	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4506		4986
…		…
4538	ev_feed_event (EV_A_ w, EV_STAT);	5018	ev_feed_event (EV_A_ w, EV_STAT);
4539	}	5019	}
4540	}	5020	}
4541		5021
4542	void	5022	void
4543	ev_stat_start (EV_P_ ev_stat *w) EV_THROW	5023	ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4544	{	5024	{
4545	if (expect_false (ev_is_active (w)))	5025	if (ecb_expect_false (ev_is_active (w)))
4546	return;	5026	return;
4547		5027
4548	ev_stat_stat (EV_A_ w);	5028	ev_stat_stat (EV_A_ w);
4549		5029
4550	if (w->interval < MIN_STAT_INTERVAL && w->interval)	5030	if (w->interval < MIN_STAT_INTERVAL && w->interval)
…		…
4569		5049
4570	EV_FREQUENT_CHECK;	5050	EV_FREQUENT_CHECK;
4571	}	5051	}
4572		5052
4573	void	5053	void
4574	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW	5054	ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4575	{	5055	{
4576	clear_pending (EV_A_ (W)w);	5056	clear_pending (EV_A_ (W)w);
4577	if (expect_false (!ev_is_active (w)))	5057	if (ecb_expect_false (!ev_is_active (w)))
4578	return;	5058	return;
4579		5059
4580	EV_FREQUENT_CHECK;	5060	EV_FREQUENT_CHECK;
4581		5061
4582	#if EV_USE_INOTIFY	5062	#if EV_USE_INOTIFY
…		…
4595	}	5075	}
4596	#endif	5076	#endif
4597		5077
4598	#if EV_IDLE_ENABLE	5078	#if EV_IDLE_ENABLE
4599	void	5079	void
4600	ev_idle_start (EV_P_ ev_idle *w) EV_THROW	5080	ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4601	{	5081	{
4602	if (expect_false (ev_is_active (w)))	5082	if (ecb_expect_false (ev_is_active (w)))
4603	return;	5083	return;
4604		5084
4605	pri_adjust (EV_A_ (W)w);	5085	pri_adjust (EV_A_ (W)w);
4606		5086
4607	EV_FREQUENT_CHECK;	5087	EV_FREQUENT_CHECK;
…		…
4610	int active = ++idlecnt [ABSPRI (w)];	5090	int active = ++idlecnt [ABSPRI (w)];
4611		5091
4612	++idleall;	5092	++idleall;
4613	ev_start (EV_A_ (W)w, active);	5093	ev_start (EV_A_ (W)w, active);
4614		5094
4615	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);	5095	array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4616	idles [ABSPRI (w)][active - 1] = w;	5096	idles [ABSPRI (w)][active - 1] = w;
4617	}	5097	}
4618		5098
4619	EV_FREQUENT_CHECK;	5099	EV_FREQUENT_CHECK;
4620	}	5100	}
4621		5101
4622	void	5102	void
4623	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW	5103	ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4624	{	5104	{
4625	clear_pending (EV_A_ (W)w);	5105	clear_pending (EV_A_ (W)w);
4626	if (expect_false (!ev_is_active (w)))	5106	if (ecb_expect_false (!ev_is_active (w)))
4627	return;	5107	return;
4628		5108
4629	EV_FREQUENT_CHECK;	5109	EV_FREQUENT_CHECK;
4630		5110
4631	{	5111	{
…		…
4642	}	5122	}
4643	#endif	5123	#endif
4644		5124
4645	#if EV_PREPARE_ENABLE	5125	#if EV_PREPARE_ENABLE
4646	void	5126	void
4647	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW	5127	ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4648	{	5128	{
4649	if (expect_false (ev_is_active (w)))	5129	if (ecb_expect_false (ev_is_active (w)))
4650	return;	5130	return;
4651		5131
4652	EV_FREQUENT_CHECK;	5132	EV_FREQUENT_CHECK;
4653		5133
4654	ev_start (EV_A_ (W)w, ++preparecnt);	5134	ev_start (EV_A_ (W)w, ++preparecnt);
4655	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);	5135	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4656	prepares [preparecnt - 1] = w;	5136	prepares [preparecnt - 1] = w;
4657		5137
4658	EV_FREQUENT_CHECK;	5138	EV_FREQUENT_CHECK;
4659	}	5139	}
4660		5140
4661	void	5141	void
4662	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW	5142	ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4663	{	5143	{
4664	clear_pending (EV_A_ (W)w);	5144	clear_pending (EV_A_ (W)w);
4665	if (expect_false (!ev_is_active (w)))	5145	if (ecb_expect_false (!ev_is_active (w)))
4666	return;	5146	return;
4667		5147
4668	EV_FREQUENT_CHECK;	5148	EV_FREQUENT_CHECK;
4669		5149
4670	{	5150	{
…		…
4680	}	5160	}
4681	#endif	5161	#endif
4682		5162
4683	#if EV_CHECK_ENABLE	5163	#if EV_CHECK_ENABLE
4684	void	5164	void
4685	ev_check_start (EV_P_ ev_check *w) EV_THROW	5165	ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4686	{	5166	{
4687	if (expect_false (ev_is_active (w)))	5167	if (ecb_expect_false (ev_is_active (w)))
4688	return;	5168	return;
4689		5169
4690	EV_FREQUENT_CHECK;	5170	EV_FREQUENT_CHECK;
4691		5171
4692	ev_start (EV_A_ (W)w, ++checkcnt);	5172	ev_start (EV_A_ (W)w, ++checkcnt);
4693	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);	5173	array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4694	checks [checkcnt - 1] = w;	5174	checks [checkcnt - 1] = w;
4695		5175
4696	EV_FREQUENT_CHECK;	5176	EV_FREQUENT_CHECK;
4697	}	5177	}
4698		5178
4699	void	5179	void
4700	ev_check_stop (EV_P_ ev_check *w) EV_THROW	5180	ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4701	{	5181	{
4702	clear_pending (EV_A_ (W)w);	5182	clear_pending (EV_A_ (W)w);
4703	if (expect_false (!ev_is_active (w)))	5183	if (ecb_expect_false (!ev_is_active (w)))
4704	return;	5184	return;
4705		5185
4706	EV_FREQUENT_CHECK;	5186	EV_FREQUENT_CHECK;
4707		5187
4708	{	5188	{
…		…
4717	EV_FREQUENT_CHECK;	5197	EV_FREQUENT_CHECK;
4718	}	5198	}
4719	#endif	5199	#endif
4720		5200
4721	#if EV_EMBED_ENABLE	5201	#if EV_EMBED_ENABLE
4722	noinline	5202	ecb_noinline
4723	void	5203	void
4724	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	5204	ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4725	{	5205	{
4726	ev_run (w->other, EVRUN_NOWAIT);	5206	ev_run (w->other, EVRUN_NOWAIT);
4727	}	5207	}
4728		5208
4729	static void	5209	static void
…		…
4751	ev_run (EV_A_ EVRUN_NOWAIT);	5231	ev_run (EV_A_ EVRUN_NOWAIT);
4752	}	5232	}
4753	}	5233	}
4754	}	5234	}
4755		5235
		5236	#if EV_FORK_ENABLE
4756	static void	5237	static void
4757	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)	5238	embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4758	{	5239	{
4759	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));	5240	ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4760		5241
…		…
4767	ev_run (EV_A_ EVRUN_NOWAIT);	5248	ev_run (EV_A_ EVRUN_NOWAIT);
4768	}	5249	}
4769		5250
4770	ev_embed_start (EV_A_ w);	5251	ev_embed_start (EV_A_ w);
4771	}	5252	}
		5253	#endif
4772		5254
4773	#if 0	5255	#if 0
4774	static void	5256	static void
4775	embed_idle_cb (EV_P_ ev_idle *idle, int revents)	5257	embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4776	{	5258	{
4777	ev_idle_stop (EV_A_ idle);	5259	ev_idle_stop (EV_A_ idle);
4778	}	5260	}
4779	#endif	5261	#endif
4780		5262
4781	void	5263	void
4782	ev_embed_start (EV_P_ ev_embed *w) EV_THROW	5264	ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4783	{	5265	{
4784	if (expect_false (ev_is_active (w)))	5266	if (ecb_expect_false (ev_is_active (w)))
4785	return;	5267	return;
4786		5268
4787	{	5269	{
4788	EV_P = w->other;	5270	EV_P = w->other;
4789	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));	5271	assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
…		…
4797		5279
4798	ev_prepare_init (&w->prepare, embed_prepare_cb);	5280	ev_prepare_init (&w->prepare, embed_prepare_cb);
4799	ev_set_priority (&w->prepare, EV_MINPRI);	5281	ev_set_priority (&w->prepare, EV_MINPRI);
4800	ev_prepare_start (EV_A_ &w->prepare);	5282	ev_prepare_start (EV_A_ &w->prepare);
4801		5283
		5284	#if EV_FORK_ENABLE
4802	ev_fork_init (&w->fork, embed_fork_cb);	5285	ev_fork_init (&w->fork, embed_fork_cb);
4803	ev_fork_start (EV_A_ &w->fork);	5286	ev_fork_start (EV_A_ &w->fork);
		5287	#endif
4804		5288
4805	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/	5289	/*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4806		5290
4807	ev_start (EV_A_ (W)w, 1);	5291	ev_start (EV_A_ (W)w, 1);
4808		5292
4809	EV_FREQUENT_CHECK;	5293	EV_FREQUENT_CHECK;
4810	}	5294	}
4811		5295
4812	void	5296	void
4813	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW	5297	ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4814	{	5298	{
4815	clear_pending (EV_A_ (W)w);	5299	clear_pending (EV_A_ (W)w);
4816	if (expect_false (!ev_is_active (w)))	5300	if (ecb_expect_false (!ev_is_active (w)))
4817	return;	5301	return;
4818		5302
4819	EV_FREQUENT_CHECK;	5303	EV_FREQUENT_CHECK;
4820		5304
4821	ev_io_stop (EV_A_ &w->io);	5305	ev_io_stop (EV_A_ &w->io);
4822	ev_prepare_stop (EV_A_ &w->prepare);	5306	ev_prepare_stop (EV_A_ &w->prepare);
		5307	#if EV_FORK_ENABLE
4823	ev_fork_stop (EV_A_ &w->fork);	5308	ev_fork_stop (EV_A_ &w->fork);
		5309	#endif
4824		5310
4825	ev_stop (EV_A_ (W)w);	5311	ev_stop (EV_A_ (W)w);
4826		5312
4827	EV_FREQUENT_CHECK;	5313	EV_FREQUENT_CHECK;
4828	}	5314	}
4829	#endif	5315	#endif
4830		5316
4831	#if EV_FORK_ENABLE	5317	#if EV_FORK_ENABLE
4832	void	5318	void
4833	ev_fork_start (EV_P_ ev_fork *w) EV_THROW	5319	ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4834	{	5320	{
4835	if (expect_false (ev_is_active (w)))	5321	if (ecb_expect_false (ev_is_active (w)))
4836	return;	5322	return;
4837		5323
4838	EV_FREQUENT_CHECK;	5324	EV_FREQUENT_CHECK;
4839		5325
4840	ev_start (EV_A_ (W)w, ++forkcnt);	5326	ev_start (EV_A_ (W)w, ++forkcnt);
4841	array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);	5327	array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4842	forks [forkcnt - 1] = w;	5328	forks [forkcnt - 1] = w;
4843		5329
4844	EV_FREQUENT_CHECK;	5330	EV_FREQUENT_CHECK;
4845	}	5331	}
4846		5332
4847	void	5333	void
4848	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW	5334	ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4849	{	5335	{
4850	clear_pending (EV_A_ (W)w);	5336	clear_pending (EV_A_ (W)w);
4851	if (expect_false (!ev_is_active (w)))	5337	if (ecb_expect_false (!ev_is_active (w)))
4852	return;	5338	return;
4853		5339
4854	EV_FREQUENT_CHECK;	5340	EV_FREQUENT_CHECK;
4855		5341
4856	{	5342	{
…		…
4866	}	5352	}
4867	#endif	5353	#endif
4868		5354
4869	#if EV_CLEANUP_ENABLE	5355	#if EV_CLEANUP_ENABLE
4870	void	5356	void
4871	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW	5357	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4872	{	5358	{
4873	if (expect_false (ev_is_active (w)))	5359	if (ecb_expect_false (ev_is_active (w)))
4874	return;	5360	return;
4875		5361
4876	EV_FREQUENT_CHECK;	5362	EV_FREQUENT_CHECK;
4877		5363
4878	ev_start (EV_A_ (W)w, ++cleanupcnt);	5364	ev_start (EV_A_ (W)w, ++cleanupcnt);
4879	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);	5365	array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4880	cleanups [cleanupcnt - 1] = w;	5366	cleanups [cleanupcnt - 1] = w;
4881		5367
4882	/* cleanup watchers should never keep a refcount on the loop */	5368	/* cleanup watchers should never keep a refcount on the loop */
4883	ev_unref (EV_A);	5369	ev_unref (EV_A);
4884	EV_FREQUENT_CHECK;	5370	EV_FREQUENT_CHECK;
4885	}	5371	}
4886		5372
4887	void	5373	void
4888	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW	5374	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4889	{	5375	{
4890	clear_pending (EV_A_ (W)w);	5376	clear_pending (EV_A_ (W)w);
4891	if (expect_false (!ev_is_active (w)))	5377	if (ecb_expect_false (!ev_is_active (w)))
4892	return;	5378	return;
4893		5379
4894	EV_FREQUENT_CHECK;	5380	EV_FREQUENT_CHECK;
4895	ev_ref (EV_A);	5381	ev_ref (EV_A);
4896		5382
…		…
4907	}	5393	}
4908	#endif	5394	#endif
4909		5395
4910	#if EV_ASYNC_ENABLE	5396	#if EV_ASYNC_ENABLE
4911	void	5397	void
4912	ev_async_start (EV_P_ ev_async *w) EV_THROW	5398	ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4913	{	5399	{
4914	if (expect_false (ev_is_active (w)))	5400	if (ecb_expect_false (ev_is_active (w)))
4915	return;	5401	return;
4916		5402
4917	w->sent = 0;	5403	w->sent = 0;
4918		5404
4919	evpipe_init (EV_A);	5405	evpipe_init (EV_A);
4920		5406
4921	EV_FREQUENT_CHECK;	5407	EV_FREQUENT_CHECK;
4922		5408
4923	ev_start (EV_A_ (W)w, ++asynccnt);	5409	ev_start (EV_A_ (W)w, ++asynccnt);
4924	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);	5410	array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4925	asyncs [asynccnt - 1] = w;	5411	asyncs [asynccnt - 1] = w;
4926		5412
4927	EV_FREQUENT_CHECK;	5413	EV_FREQUENT_CHECK;
4928	}	5414	}
4929		5415
4930	void	5416	void
4931	ev_async_stop (EV_P_ ev_async *w) EV_THROW	5417	ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4932	{	5418	{
4933	clear_pending (EV_A_ (W)w);	5419	clear_pending (EV_A_ (W)w);
4934	if (expect_false (!ev_is_active (w)))	5420	if (ecb_expect_false (!ev_is_active (w)))
4935	return;	5421	return;
4936		5422
4937	EV_FREQUENT_CHECK;	5423	EV_FREQUENT_CHECK;
4938		5424
4939	{	5425	{
…		…
4947		5433
4948	EV_FREQUENT_CHECK;	5434	EV_FREQUENT_CHECK;
4949	}	5435	}
4950		5436
4951	void	5437	void
4952	ev_async_send (EV_P_ ev_async *w) EV_THROW	5438	ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4953	{	5439	{
4954	w->sent = 1;	5440	w->sent = 1;
4955	evpipe_write (EV_A_ &async_pending);	5441	evpipe_write (EV_A_ &async_pending);
4956	}	5442	}
4957	#endif	5443	#endif
…		…
4994		5480
4995	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	5481	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4996	}	5482	}
4997		5483
4998	void	5484	void
4999	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW	5485	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
5000	{	5486	{
5001	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	5487	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
5002
5003	if (expect_false (!once))
5004	{
5005	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
5006	return;
5007	}
5008		5488
5009	once->cb = cb;	5489	once->cb = cb;
5010	once->arg = arg;	5490	once->arg = arg;
5011		5491
5012	ev_init (&once->io, once_cb_io);	5492	ev_init (&once->io, once_cb_io);
…		…
5027	/*****************************************************************************/	5507	/*****************************************************************************/
5028		5508
5029	#if EV_WALK_ENABLE	5509	#if EV_WALK_ENABLE
5030	ecb_cold	5510	ecb_cold
5031	void	5511	void
5032	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW	5512	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
5033	{	5513	{
5034	int i, j;	5514	int i, j;
5035	ev_watcher_list *wl, *wn;	5515	ev_watcher_list *wl, *wn;
5036		5516
5037	if (types & (EV_IO | EV_EMBED))	5517	if (types & (EV_IO | EV_EMBED))

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