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Comparing libev/ev.c (file contents):
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC vs.
Revision 1.472 by root, Tue Sep 9 13:24:13 2014 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
43	# include EV_CONFIG_H	43	# include EV_CONFIG_H
44	# else	44	# else
45	# include "config.h"	45	# include "config.h"
46	# endif	46	# endif
47		47
48	#if HAVE_FLOOR	48	# if HAVE_FLOOR
49	# ifndef EV_USE_FLOOR	49	# ifndef EV_USE_FLOOR
50	# define EV_USE_FLOOR 1	50	# define EV_USE_FLOOR 1
		51	# endif
51	# endif	52	# endif
52	#endif
53		53
54	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
55	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
56	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
57	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
59	# endif	59	# endif
60	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 1	61	# define EV_USE_MONOTONIC 1
62	# endif	62	# endif
63	# endif	63	# endif
64	# elif !defined(EV_USE_CLOCK_SYSCALL)	64	# elif !defined EV_USE_CLOCK_SYSCALL
65	# define EV_USE_CLOCK_SYSCALL 0	65	# define EV_USE_CLOCK_SYSCALL 0
66	# endif	66	# endif
67		67
68	# if HAVE_CLOCK_GETTIME	68	# if HAVE_CLOCK_GETTIME
69	# ifndef EV_USE_MONOTONIC	69	# ifndef EV_USE_MONOTONIC
…		…
201	# include <sys/wait.h>	201	# include <sys/wait.h>
202	# include <unistd.h>	202	# include <unistd.h>
203	#else	203	#else
204	# include <io.h>	204	# include <io.h>
205	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
206	# include <windows.h>	207	# include <windows.h>
207	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
208	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
209	# endif	210	# endif
210	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
219	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
220		221
221	/* this block tries to deduce configuration from header-defined symbols and defaults */	222	/* this block tries to deduce configuration from header-defined symbols and defaults */
222		223
223	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
224	#if defined (EV_NSIG)	225	#if defined EV_NSIG
225	/* use what's provided */	226	/* use what's provided */
226	#elif defined (NSIG)	227	#elif defined NSIG
227	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
228	#elif defined(_NSIG)	229	#elif defined _NSIG
229	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
230	#elif defined (SIGMAX)	231	#elif defined SIGMAX
231	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
232	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
233	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
234	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
235	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
236	#elif defined (MAXSIG)	237	#elif defined MAXSIG
237	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
238	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
239	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
240	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
241	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
243	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244	#else	245	#else
245	# error "unable to find value for NSIG, please report"	246	# define EV_NSIG (8 * sizeof (sigset_t) + 1)
246	/* to make it compile regardless, just remove the above line, */
247	/* but consider reporting it, too! :) */
248	# define EV_NSIG 65
249	#endif	247	#endif
250		248
251	#ifndef EV_USE_FLOOR	249	#ifndef EV_USE_FLOOR
252	# define EV_USE_FLOOR 0	250	# define EV_USE_FLOOR 0
253	#endif	251	#endif
254		252
255	#ifndef EV_USE_CLOCK_SYSCALL	253	#ifndef EV_USE_CLOCK_SYSCALL
256	# if __linux && __GLIBC__ >= 2	254	# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	255	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258	# else	256	# else
259	# define EV_USE_CLOCK_SYSCALL 0	257	# define EV_USE_CLOCK_SYSCALL 0
260	# endif	258	# endif
261	#endif	259	#endif
262		260
		261	#if !(_POSIX_TIMERS > 0)
		262	# ifndef EV_USE_MONOTONIC
		263	# define EV_USE_MONOTONIC 0
		264	# endif
		265	# ifndef EV_USE_REALTIME
		266	# define EV_USE_REALTIME 0
		267	# endif
		268	#endif
		269
263	#ifndef EV_USE_MONOTONIC	270	#ifndef EV_USE_MONOTONIC
264	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	271	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265	# define EV_USE_MONOTONIC EV_FEATURE_OS	272	# define EV_USE_MONOTONIC EV_FEATURE_OS
266	# else	273	# else
267	# define EV_USE_MONOTONIC 0	274	# define EV_USE_MONOTONIC 0
268	# endif	275	# endif
269	#endif	276	#endif
…		…
356		363
357	#ifndef EV_HEAP_CACHE_AT	364	#ifndef EV_HEAP_CACHE_AT
358	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	365	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359	#endif	366	#endif
360		367
		368	#ifdef ANDROID
		369	/* supposedly, android doesn't typedef fd_mask */
		370	# undef EV_USE_SELECT
		371	# define EV_USE_SELECT 0
		372	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		373	# undef EV_USE_CLOCK_SYSCALL
		374	# define EV_USE_CLOCK_SYSCALL 0
		375	#endif
		376
		377	/* aix's poll.h seems to cause lots of trouble */
		378	#ifdef _AIX
		379	/* AIX has a completely broken poll.h header */
		380	# undef EV_USE_POLL
		381	# define EV_USE_POLL 0
		382	#endif
		383
361	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	384	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
362	/* which makes programs even slower. might work on other unices, too. */	385	/* which makes programs even slower. might work on other unices, too. */
363	#if EV_USE_CLOCK_SYSCALL	386	#if EV_USE_CLOCK_SYSCALL
364	# include <syscall.h>	387	# include <sys/syscall.h>
365	# ifdef SYS_clock_gettime	388	# ifdef SYS_clock_gettime
366	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	389	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367	# undef EV_USE_MONOTONIC	390	# undef EV_USE_MONOTONIC
368	# define EV_USE_MONOTONIC 1	391	# define EV_USE_MONOTONIC 1
369	# else	392	# else
…		…
372	# endif	395	# endif
373	#endif	396	#endif
374		397
375	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	398	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376		399
377	#ifdef _AIX
378	/* AIX has a completely broken poll.h header */
379	# undef EV_USE_POLL
380	# define EV_USE_POLL 0
381	#endif
382
383	#ifndef CLOCK_MONOTONIC	400	#ifndef CLOCK_MONOTONIC
384	# undef EV_USE_MONOTONIC	401	# undef EV_USE_MONOTONIC
385	# define EV_USE_MONOTONIC 0	402	# define EV_USE_MONOTONIC 0
386	#endif	403	#endif
387		404
…		…
395	# define EV_USE_INOTIFY 0	412	# define EV_USE_INOTIFY 0
396	#endif	413	#endif
397		414
398	#if !EV_USE_NANOSLEEP	415	#if !EV_USE_NANOSLEEP
399	/* hp-ux has it in sys/time.h, which we unconditionally include above */	416	/* hp-ux has it in sys/time.h, which we unconditionally include above */
400	# if !defined(_WIN32) && !defined(__hpux)	417	# if !defined _WIN32 && !defined __hpux
401	# include <sys/select.h>	418	# include <sys/select.h>
402	# endif	419	# endif
403	#endif	420	#endif
404		421
405	#if EV_USE_INOTIFY	422	#if EV_USE_INOTIFY
…		…
408	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	425	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409	# ifndef IN_DONT_FOLLOW	426	# ifndef IN_DONT_FOLLOW
410	# undef EV_USE_INOTIFY	427	# undef EV_USE_INOTIFY
411	# define EV_USE_INOTIFY 0	428	# define EV_USE_INOTIFY 0
412	# endif	429	# endif
413	#endif
414
415	#if EV_SELECT_IS_WINSOCKET
416	# include <winsock.h>
417	#endif	430	#endif
418		431
419	#if EV_USE_EVENTFD	432	#if EV_USE_EVENTFD
420	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	433	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421	# include <stdint.h>	434	# include <stdint.h>
…		…
478	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	491	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479	/* ECB.H BEGIN */	492	/* ECB.H BEGIN */
480	/*	493	/*
481	* libecb - http://software.schmorp.de/pkg/libecb	494	* libecb - http://software.schmorp.de/pkg/libecb
482	*	495	*
483	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	496	* Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
484	* Copyright (©) 2011 Emanuele Giaquinta	497	* Copyright (©) 2011 Emanuele Giaquinta
485	* All rights reserved.	498	* All rights reserved.
486	*	499	*
487	* Redistribution and use in source and binary forms, with or without modifica-	500	* Redistribution and use in source and binary forms, with or without modifica-
488	* tion, are permitted provided that the following conditions are met:	501	* tion, are permitted provided that the following conditions are met:
…		…
502	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;	515	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	516	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	517	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED	518	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506	* OF THE POSSIBILITY OF SUCH DAMAGE.	519	* OF THE POSSIBILITY OF SUCH DAMAGE.
		520	*
		521	* Alternatively, the contents of this file may be used under the terms of
		522	* the GNU General Public License ("GPL") version 2 or any later version,
		523	* in which case the provisions of the GPL are applicable instead of
		524	* the above. If you wish to allow the use of your version of this file
		525	* only under the terms of the GPL and not to allow others to use your
		526	* version of this file under the BSD license, indicate your decision
		527	* by deleting the provisions above and replace them with the notice
		528	* and other provisions required by the GPL. If you do not delete the
		529	* provisions above, a recipient may use your version of this file under
		530	* either the BSD or the GPL.
507	*/	531	*/
508		532
509	#ifndef ECB_H	533	#ifndef ECB_H
510	#define ECB_H	534	#define ECB_H
		535
		536	/* 16 bits major, 16 bits minor */
		537	#define ECB_VERSION 0x00010003
511		538
512	#ifdef _WIN32	539	#ifdef _WIN32
513	typedef signed char int8_t;	540	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	541	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	542	typedef signed short int16_t;
…		…
521	typedef unsigned long long uint64_t;	548	typedef unsigned long long uint64_t;
522	#else /* _MSC_VER || __BORLANDC__ */	549	#else /* _MSC_VER || __BORLANDC__ */
523	typedef signed __int64 int64_t;	550	typedef signed __int64 int64_t;
524	typedef unsigned __int64 uint64_t;	551	typedef unsigned __int64 uint64_t;
525	#endif	552	#endif
		553	#ifdef _WIN64
		554	#define ECB_PTRSIZE 8
		555	typedef uint64_t uintptr_t;
		556	typedef int64_t intptr_t;
		557	#else
		558	#define ECB_PTRSIZE 4
		559	typedef uint32_t uintptr_t;
		560	typedef int32_t intptr_t;
		561	#endif
526	#else	562	#else
527	#include <inttypes.h>	563	#include <inttypes.h>
		564	#if UINTMAX_MAX > 0xffffffffU
		565	#define ECB_PTRSIZE 8
		566	#else
		567	#define ECB_PTRSIZE 4
		568	#endif
		569	#endif
		570
		571	/* work around x32 idiocy by defining proper macros */
		572	#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
		573	#if _ILP32
		574	#define ECB_AMD64_X32 1
		575	#else
		576	#define ECB_AMD64 1
		577	#endif
528	#endif	578	#endif
529		579
530	/* many compilers define _GNUC_ to some versions but then only implement	580	/* many compilers define _GNUC_ to some versions but then only implement
531	* what their idiot authors think are the "more important" extensions,	581	* what their idiot authors think are the "more important" extensions,
532	* causing enormous grief in return for some better fake benchmark numbers.	582	* causing enormous grief in return for some better fake benchmark numbers.
533	* or so.	583	* or so.
534	* we try to detect these and simply assume they are not gcc - if they have	584	* we try to detect these and simply assume they are not gcc - if they have
535	* an issue with that they should have done it right in the first place.	585	* an issue with that they should have done it right in the first place.
536	*/	586	*/
537	#ifndef ECB_GCC_VERSION	587	#ifndef ECB_GCC_VERSION
538	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	588	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539	#define ECB_GCC_VERSION(major,minor) 0	589	#define ECB_GCC_VERSION(major,minor) 0
540	#else	590	#else
541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	591	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542	#endif	592	#endif
543	#endif	593	#endif
544		594
		595	#define ECB_CPP (__cplusplus+0)
		596	#define ECB_CPP11 (__cplusplus >= 201103L)
		597
		598	#if ECB_CPP
		599	#define ECB_C 0
		600	#define ECB_STDC_VERSION 0
		601	#else
		602	#define ECB_C 1
		603	#define ECB_STDC_VERSION __STDC_VERSION__
		604	#endif
		605
		606	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		607	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		608
		609	#if ECB_CPP
		610	#define ECB_EXTERN_C extern "C"
		611	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		612	#define ECB_EXTERN_C_END }
		613	#else
		614	#define ECB_EXTERN_C extern
		615	#define ECB_EXTERN_C_BEG
		616	#define ECB_EXTERN_C_END
		617	#endif
		618
545	/*****************************************************************************/	619	/*****************************************************************************/
546		620
547	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	621	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */	622	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549		623
550	#if ECB_NO_THREADS	624	#if ECB_NO_THREADS
551	# define ECB_NO_SMP 1	625	#define ECB_NO_SMP 1
552	#endif	626	#endif
553		627
554	#if ECB_NO_THREADS || ECB_NO_SMP	628	#if ECB_NO_SMP
555	#define ECB_MEMORY_FENCE do { } while (0)	629	#define ECB_MEMORY_FENCE do { } while (0)
556	#endif	630	#endif
557		631
558	#ifndef ECB_MEMORY_FENCE	632	#ifndef ECB_MEMORY_FENCE
559	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	633	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560	#if __i386 || __i386__	634	#if __i386 || __i386__
561	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	635	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */	636	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	637	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	638	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	639	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	640	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */	641	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	642	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	643	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	644	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	645	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	646	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \	647	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	648	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	649	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		650	#elif __aarch64__
		651	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
576	#elif __sparc || __sparc__	652	#elif (__sparc || __sparc__) && !__sparcv8
577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")	653	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	654	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	655	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580	#elif defined(__s390__) || defined(__s390x__)	656	#elif defined __s390__ || defined __s390x__
581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	657	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582	#elif defined(__mips__)	658	#elif defined __mips__
		659	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		660	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		661	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		662	#elif defined __alpha__
583	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	663	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		664	#elif defined __hppa__
		665	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		666	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		667	#elif defined __ia64__
		668	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		669	#elif defined __m68k__
		670	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		671	#elif defined __m88k__
		672	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		673	#elif defined __sh__
		674	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584	#endif	675	#endif
585	#endif	676	#endif
586	#endif	677	#endif
587		678
588	#ifndef ECB_MEMORY_FENCE	679	#ifndef ECB_MEMORY_FENCE
		680	#if ECB_GCC_VERSION(4,7)
		681	/* see comment below (stdatomic.h) about the C11 memory model. */
		682	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		683	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		684	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		685
		686	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		687	* without risking compile time errors with other compilers. We *could*
		688	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		689	* around this shit time and again.
		690	* #elif defined __clang && __has_feature (cxx_atomic)
		691	* // see comment below (stdatomic.h) about the C11 memory model.
		692	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		693	* #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		694	* #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
		695	*/
		696
589	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	697	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590	#define ECB_MEMORY_FENCE __sync_synchronize ()	698	#define ECB_MEMORY_FENCE __sync_synchronize ()
591	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */	699	#elif _MSC_VER >= 1500 /* VC++ 2008 */
592	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */	700	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		701	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		702	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		703	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		704	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
593	#elif _MSC_VER >= 1400 /* VC++ 2005 */	705	#elif _MSC_VER >= 1400 /* VC++ 2005 */
594	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	706	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	707	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	708	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	709	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598	#elif defined(_WIN32)	710	#elif defined _WIN32
599	#include <WinNT.h>	711	#include <WinNT.h>
600	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	712	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	713	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602	#include <mbarrier.h>	714	#include <mbarrier.h>
603	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	715	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
604	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	716	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()	717	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		718	#elif __xlC__
		719	#define ECB_MEMORY_FENCE __sync ()
		720	#endif
		721	#endif
		722
		723	#ifndef ECB_MEMORY_FENCE
		724	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		725	/* we assume that these memory fences work on all variables/all memory accesses, */
		726	/* not just C11 atomics and atomic accesses */
		727	#include <stdatomic.h>
		728	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		729	/* any fence other than seq_cst, which isn't very efficient for us. */
		730	/* Why that is, we don't know - either the C11 memory model is quite useless */
		731	/* for most usages, or gcc and clang have a bug */
		732	/* I *currently* lean towards the latter, and inefficiently implement */
		733	/* all three of ecb's fences as a seq_cst fence */
		734	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		735	/* for all __atomic_thread_fence's except seq_cst */
		736	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
606	#endif	737	#endif
607	#endif	738	#endif
608		739
609	#ifndef ECB_MEMORY_FENCE	740	#ifndef ECB_MEMORY_FENCE
610	#if !ECB_AVOID_PTHREADS	741	#if !ECB_AVOID_PTHREADS
…		…
622	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	753	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
623	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)	754	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
624	#endif	755	#endif
625	#endif	756	#endif
626		757
627	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	758	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
628	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	759	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
629	#endif	760	#endif
630		761
631	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	762	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
632	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	763	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
633	#endif	764	#endif
634		765
635	/*****************************************************************************/	766	/*****************************************************************************/
636
637	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
638		767
639	#if __cplusplus	768	#if __cplusplus
640	#define ecb_inline static inline	769	#define ecb_inline static inline
641	#elif ECB_GCC_VERSION(2,5)	770	#elif ECB_GCC_VERSION(2,5)
642	#define ecb_inline static __inline__	771	#define ecb_inline static __inline__
…		…
668	#define ecb_is_constant(expr) __builtin_constant_p (expr)	797	#define ecb_is_constant(expr) __builtin_constant_p (expr)
669	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	798	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
670	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	799	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
671	#else	800	#else
672	#define ecb_attribute(attrlist)	801	#define ecb_attribute(attrlist)
		802
		803	/* possible C11 impl for integral types
		804	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		805	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		806
673	#define ecb_is_constant(expr) 0	807	#define ecb_is_constant(expr) 0
674	#define ecb_expect(expr,value) (expr)	808	#define ecb_expect(expr,value) (expr)
675	#define ecb_prefetch(addr,rw,locality)	809	#define ecb_prefetch(addr,rw,locality)
676	#endif	810	#endif
677		811
…		…
680	#define ecb_decltype(x) __decltype(x)	814	#define ecb_decltype(x) __decltype(x)
681	#elif ECB_GCC_VERSION(3,0)	815	#elif ECB_GCC_VERSION(3,0)
682	#define ecb_decltype(x) __typeof(x)	816	#define ecb_decltype(x) __typeof(x)
683	#endif	817	#endif
684		818
		819	#if _MSC_VER >= 1300
		820	#define ecb_deprecated __declspec(deprecated)
		821	#else
		822	#define ecb_deprecated ecb_attribute ((__deprecated__))
		823	#endif
		824
685	#define ecb_noinline ecb_attribute ((__noinline__))	825	#define ecb_noinline ecb_attribute ((__noinline__))
686	#define ecb_noreturn ecb_attribute ((__noreturn__))
687	#define ecb_unused ecb_attribute ((__unused__))	826	#define ecb_unused ecb_attribute ((__unused__))
688	#define ecb_const ecb_attribute ((__const__))	827	#define ecb_const ecb_attribute ((__const__))
689	#define ecb_pure ecb_attribute ((__pure__))	828	#define ecb_pure ecb_attribute ((__pure__))
		829
		830	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
		831	#if ECB_C11
		832	#define ecb_noreturn _Noreturn
		833	#else
		834	#define ecb_noreturn ecb_attribute ((__noreturn__))
		835	#endif
690		836
691	#if ECB_GCC_VERSION(4,3)	837	#if ECB_GCC_VERSION(4,3)
692	#define ecb_artificial ecb_attribute ((__artificial__))	838	#define ecb_artificial ecb_attribute ((__artificial__))
693	#define ecb_hot ecb_attribute ((__hot__))	839	#define ecb_hot ecb_attribute ((__hot__))
694	#define ecb_cold ecb_attribute ((__cold__))	840	#define ecb_cold ecb_attribute ((__cold__))
…		…
785		931
786	return r + ecb_ld32 (x);	932	return r + ecb_ld32 (x);
787	}	933	}
788	#endif	934	#endif
789		935
		936	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		937	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		938	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		939	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		940
790	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	941	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
791	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	942	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
792	{	943	{
793	return ( (x * 0x0802U & 0x22110U)	944	return ( (x * 0x0802U & 0x22110U)
794	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	945	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
878	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1029	ecb_inline void ecb_unreachable (void) ecb_noreturn;
879	ecb_inline void ecb_unreachable (void) { }	1030	ecb_inline void ecb_unreachable (void) { }
880	#endif	1031	#endif
881		1032
882	/* try to tell the compiler that some condition is definitely true */	1033	/* try to tell the compiler that some condition is definitely true */
883	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	1034	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
884		1035
885	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1036	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
886	ecb_inline unsigned char	1037	ecb_inline unsigned char
887	ecb_byteorder_helper (void)	1038	ecb_byteorder_helper (void)
888	{	1039	{
889	const uint32_t u = 0x11223344;	1040	/* the union code still generates code under pressure in gcc, */
890	return *(unsigned char *)&u;	1041	/* but less than using pointers, and always seems to */
		1042	/* successfully return a constant. */
		1043	/* the reason why we have this horrible preprocessor mess */
		1044	/* is to avoid it in all cases, at least on common architectures */
		1045	/* or when using a recent enough gcc version (>= 4.6) */
		1046	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		1047	return 0x44;
		1048	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		1049	return 0x44;
		1050	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		1051	return 0x11;
		1052	#else
		1053	union
		1054	{
		1055	uint32_t i;
		1056	uint8_t c;
		1057	} u = { 0x11223344 };
		1058	return u.c;
		1059	#endif
891	}	1060	}
892		1061
893	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1062	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
894	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1063	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
895	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1064	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
…		…
926	}	1095	}
927	#else	1096	#else
928	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1097	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
929	#endif	1098	#endif
930		1099
		1100	/*******************************************************************************/
		1101	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1102
		1103	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1104	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1105	#if 0 \
		1106	|| __i386 || __i386__ \
		1107	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1108	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1109	|| defined __s390__ || defined __s390x__ \
		1110	|| defined __mips__ \
		1111	|| defined __alpha__ \
		1112	|| defined __hppa__ \
		1113	|| defined __ia64__ \
		1114	|| defined __m68k__ \
		1115	|| defined __m88k__ \
		1116	|| defined __sh__ \
		1117	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
		1118	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1119	|| defined __aarch64__
		1120	#define ECB_STDFP 1
		1121	#include <string.h> /* for memcpy */
		1122	#else
		1123	#define ECB_STDFP 0
		1124	#endif
		1125
		1126	#ifndef ECB_NO_LIBM
		1127
		1128	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1129
		1130	/* only the oldest of old doesn't have this one. solaris. */
		1131	#ifdef INFINITY
		1132	#define ECB_INFINITY INFINITY
		1133	#else
		1134	#define ECB_INFINITY HUGE_VAL
		1135	#endif
		1136
		1137	#ifdef NAN
		1138	#define ECB_NAN NAN
		1139	#else
		1140	#define ECB_NAN ECB_INFINITY
		1141	#endif
		1142
		1143	/* converts an ieee half/binary16 to a float */
		1144	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
		1145	ecb_function_ float
		1146	ecb_binary16_to_float (uint16_t x)
		1147	{
		1148	int e = (x >> 10) & 0x1f;
		1149	int m = x & 0x3ff;
		1150	float r;
		1151
		1152	if (!e ) r = ldexpf (m , -24);
		1153	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
		1154	else if (m ) r = ECB_NAN;
		1155	else r = ECB_INFINITY;
		1156
		1157	return x & 0x8000 ? -r : r;
		1158	}
		1159
		1160	/* convert a float to ieee single/binary32 */
		1161	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1162	ecb_function_ uint32_t
		1163	ecb_float_to_binary32 (float x)
		1164	{
		1165	uint32_t r;
		1166
		1167	#if ECB_STDFP
		1168	memcpy (&r, &x, 4);
		1169	#else
		1170	/* slow emulation, works for anything but -0 */
		1171	uint32_t m;
		1172	int e;
		1173
		1174	if (x == 0e0f ) return 0x00000000U;
		1175	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1176	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1177	if (x != x ) return 0x7fbfffffU;
		1178
		1179	m = frexpf (x, &e) * 0x1000000U;
		1180
		1181	r = m & 0x80000000U;
		1182
		1183	if (r)
		1184	m = -m;
		1185
		1186	if (e <= -126)
		1187	{
		1188	m &= 0xffffffU;
		1189	m >>= (-125 - e);
		1190	e = -126;
		1191	}
		1192
		1193	r |= (e + 126) << 23;
		1194	r |= m & 0x7fffffU;
		1195	#endif
		1196
		1197	return r;
		1198	}
		1199
		1200	/* converts an ieee single/binary32 to a float */
		1201	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1202	ecb_function_ float
		1203	ecb_binary32_to_float (uint32_t x)
		1204	{
		1205	float r;
		1206
		1207	#if ECB_STDFP
		1208	memcpy (&r, &x, 4);
		1209	#else
		1210	/* emulation, only works for normals and subnormals and +0 */
		1211	int neg = x >> 31;
		1212	int e = (x >> 23) & 0xffU;
		1213
		1214	x &= 0x7fffffU;
		1215
		1216	if (e)
		1217	x |= 0x800000U;
		1218	else
		1219	e = 1;
		1220
		1221	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1222	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1223
		1224	r = neg ? -r : r;
		1225	#endif
		1226
		1227	return r;
		1228	}
		1229
		1230	/* convert a double to ieee double/binary64 */
		1231	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1232	ecb_function_ uint64_t
		1233	ecb_double_to_binary64 (double x)
		1234	{
		1235	uint64_t r;
		1236
		1237	#if ECB_STDFP
		1238	memcpy (&r, &x, 8);
		1239	#else
		1240	/* slow emulation, works for anything but -0 */
		1241	uint64_t m;
		1242	int e;
		1243
		1244	if (x == 0e0 ) return 0x0000000000000000U;
		1245	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1246	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1247	if (x != x ) return 0X7ff7ffffffffffffU;
		1248
		1249	m = frexp (x, &e) * 0x20000000000000U;
		1250
		1251	r = m & 0x8000000000000000;;
		1252
		1253	if (r)
		1254	m = -m;
		1255
		1256	if (e <= -1022)
		1257	{
		1258	m &= 0x1fffffffffffffU;
		1259	m >>= (-1021 - e);
		1260	e = -1022;
		1261	}
		1262
		1263	r |= ((uint64_t)(e + 1022)) << 52;
		1264	r |= m & 0xfffffffffffffU;
		1265	#endif
		1266
		1267	return r;
		1268	}
		1269
		1270	/* converts an ieee double/binary64 to a double */
		1271	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1272	ecb_function_ double
		1273	ecb_binary64_to_double (uint64_t x)
		1274	{
		1275	double r;
		1276
		1277	#if ECB_STDFP
		1278	memcpy (&r, &x, 8);
		1279	#else
		1280	/* emulation, only works for normals and subnormals and +0 */
		1281	int neg = x >> 63;
		1282	int e = (x >> 52) & 0x7ffU;
		1283
		1284	x &= 0xfffffffffffffU;
		1285
		1286	if (e)
		1287	x |= 0x10000000000000U;
		1288	else
		1289	e = 1;
		1290
		1291	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1292	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1293
		1294	r = neg ? -r : r;
		1295	#endif
		1296
		1297	return r;
		1298	}
		1299
		1300	#endif
		1301
931	#endif	1302	#endif
932		1303
933	/* ECB.H END */	1304	/* ECB.H END */
934		1305
935	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1306	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1101	{	1472	{
1102	write (STDERR_FILENO, msg, strlen (msg));	1473	write (STDERR_FILENO, msg, strlen (msg));
1103	}	1474	}
1104	#endif	1475	#endif
1105		1476
1106	static void (*syserr_cb)(const char *msg);	1477	static void (*syserr_cb)(const char *msg) EV_THROW;
1107		1478
1108	void ecb_cold	1479	void ecb_cold
1109	ev_set_syserr_cb (void (*cb)(const char *msg))	1480	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1110	{	1481	{
1111	syserr_cb = cb;	1482	syserr_cb = cb;
1112	}	1483	}
1113		1484
1114	static void noinline ecb_cold	1485	static void noinline ecb_cold
…		…
1132	abort ();	1503	abort ();
1133	}	1504	}
1134	}	1505	}
1135		1506
1136	static void *	1507	static void *
1137	ev_realloc_emul (void *ptr, long size)	1508	ev_realloc_emul (void *ptr, long size) EV_THROW
1138	{	1509	{
1139	#if __GLIBC__
1140	return realloc (ptr, size);
1141	#else
1142	/* some systems, notably openbsd and darwin, fail to properly	1510	/* some systems, notably openbsd and darwin, fail to properly
1143	* implement realloc (x, 0) (as required by both ansi c-89 and	1511	* implement realloc (x, 0) (as required by both ansi c-89 and
1144	* the single unix specification, so work around them here.	1512	* the single unix specification, so work around them here.
		1513	* recently, also (at least) fedora and debian started breaking it,
		1514	* despite documenting it otherwise.
1145	*/	1515	*/
1146		1516
1147	if (size)	1517	if (size)
1148	return realloc (ptr, size);	1518	return realloc (ptr, size);
1149		1519
1150	free (ptr);	1520	free (ptr);
1151	return 0;	1521	return 0;
1152	#endif
1153	}	1522	}
1154		1523
1155	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1524	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1156		1525
1157	void ecb_cold	1526	void ecb_cold
1158	ev_set_allocator (void *(*cb)(void *ptr, long size))	1527	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1159	{	1528	{
1160	alloc = cb;	1529	alloc = cb;
1161	}	1530	}
1162		1531
1163	inline_speed void *	1532	inline_speed void *
…		…
1280		1649
1281	/*****************************************************************************/	1650	/*****************************************************************************/
1282		1651
1283	#ifndef EV_HAVE_EV_TIME	1652	#ifndef EV_HAVE_EV_TIME
1284	ev_tstamp	1653	ev_tstamp
1285	ev_time (void)	1654	ev_time (void) EV_THROW
1286	{	1655	{
1287	#if EV_USE_REALTIME	1656	#if EV_USE_REALTIME
1288	if (expect_true (have_realtime))	1657	if (expect_true (have_realtime))
1289	{	1658	{
1290	struct timespec ts;	1659	struct timespec ts;
…		…
1314	return ev_time ();	1683	return ev_time ();
1315	}	1684	}
1316		1685
1317	#if EV_MULTIPLICITY	1686	#if EV_MULTIPLICITY
1318	ev_tstamp	1687	ev_tstamp
1319	ev_now (EV_P)	1688	ev_now (EV_P) EV_THROW
1320	{	1689	{
1321	return ev_rt_now;	1690	return ev_rt_now;
1322	}	1691	}
1323	#endif	1692	#endif
1324		1693
1325	void	1694	void
1326	ev_sleep (ev_tstamp delay)	1695	ev_sleep (ev_tstamp delay) EV_THROW
1327	{	1696	{
1328	if (delay > 0.)	1697	if (delay > 0.)
1329	{	1698	{
1330	#if EV_USE_NANOSLEEP	1699	#if EV_USE_NANOSLEEP
1331	struct timespec ts;	1700	struct timespec ts;
1332		1701
1333	EV_TS_SET (ts, delay);	1702	EV_TS_SET (ts, delay);
1334	nanosleep (&ts, 0);	1703	nanosleep (&ts, 0);
1335	#elif defined(_WIN32)	1704	#elif defined _WIN32
1336	Sleep ((unsigned long)(delay * 1e3));	1705	Sleep ((unsigned long)(delay * 1e3));
1337	#else	1706	#else
1338	struct timeval tv;	1707	struct timeval tv;
1339		1708
1340	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1709	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1412	pendingcb (EV_P_ ev_prepare *w, int revents)	1781	pendingcb (EV_P_ ev_prepare *w, int revents)
1413	{	1782	{
1414	}	1783	}
1415		1784
1416	void noinline	1785	void noinline
1417	ev_feed_event (EV_P_ void *w, int revents)	1786	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1418	{	1787	{
1419	W w_ = (W)w;	1788	W w_ = (W)w;
1420	int pri = ABSPRI (w_);	1789	int pri = ABSPRI (w_);
1421		1790
1422	if (expect_false (w_->pending))	1791	if (expect_false (w_->pending))
…		…
1426	w_->pending = ++pendingcnt [pri];	1795	w_->pending = ++pendingcnt [pri];
1427	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1796	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1428	pendings [pri][w_->pending - 1].w = w_;	1797	pendings [pri][w_->pending - 1].w = w_;
1429	pendings [pri][w_->pending - 1].events = revents;	1798	pendings [pri][w_->pending - 1].events = revents;
1430	}	1799	}
		1800
		1801	pendingpri = NUMPRI - 1;
1431	}	1802	}
1432		1803
1433	inline_speed void	1804	inline_speed void
1434	feed_reverse (EV_P_ W w)	1805	feed_reverse (EV_P_ W w)
1435	{	1806	{
…		…
1481	if (expect_true (!anfd->reify))	1852	if (expect_true (!anfd->reify))
1482	fd_event_nocheck (EV_A_ fd, revents);	1853	fd_event_nocheck (EV_A_ fd, revents);
1483	}	1854	}
1484		1855
1485	void	1856	void
1486	ev_feed_fd_event (EV_P_ int fd, int revents)	1857	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1487	{	1858	{
1488	if (fd >= 0 && fd < anfdmax)	1859	if (fd >= 0 && fd < anfdmax)
1489	fd_event_nocheck (EV_A_ fd, revents);	1860	fd_event_nocheck (EV_A_ fd, revents);
1490	}	1861	}
1491		1862
…		…
1810	static void noinline ecb_cold	2181	static void noinline ecb_cold
1811	evpipe_init (EV_P)	2182	evpipe_init (EV_P)
1812	{	2183	{
1813	if (!ev_is_active (&pipe_w))	2184	if (!ev_is_active (&pipe_w))
1814	{	2185	{
		2186	int fds [2];
		2187
1815	# if EV_USE_EVENTFD	2188	# if EV_USE_EVENTFD
		2189	fds [0] = -1;
1816	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2190	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1817	if (evfd < 0 && errno == EINVAL)	2191	if (fds [1] < 0 && errno == EINVAL)
1818	evfd = eventfd (0, 0);	2192	fds [1] = eventfd (0, 0);
1819		2193
1820	if (evfd >= 0)	2194	if (fds [1] < 0)
		2195	# endif
1821	{	2196	{
		2197	while (pipe (fds))
		2198	ev_syserr ("(libev) error creating signal/async pipe");
		2199
		2200	fd_intern (fds [0]);
		2201	}
		2202
1822	evpipe [0] = -1;	2203	evpipe [0] = fds [0];
1823	fd_intern (evfd); /* doing it twice doesn't hurt */	2204
1824	ev_io_set (&pipe_w, evfd, EV_READ);	2205	if (evpipe [1] < 0)
		2206	evpipe [1] = fds [1]; /* first call, set write fd */
		2207	else
		2208	{
		2209	/* on subsequent calls, do not change evpipe [1] */
		2210	/* so that evpipe_write can always rely on its value. */
		2211	/* this branch does not do anything sensible on windows, */
		2212	/* so must not be executed on windows */
		2213
		2214	dup2 (fds [1], evpipe [1]);
		2215	close (fds [1]);
		2216	}
		2217
		2218	fd_intern (evpipe [1]);
		2219
		2220	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2221	ev_io_start (EV_A_ &pipe_w);
		2222	ev_unref (EV_A); /* watcher should not keep loop alive */
		2223	}
		2224	}
		2225
		2226	inline_speed void
		2227	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2228	{
		2229	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2230
		2231	if (expect_true (*flag))
		2232	return;
		2233
		2234	*flag = 1;
		2235	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2236
		2237	pipe_write_skipped = 1;
		2238
		2239	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2240
		2241	if (pipe_write_wanted)
		2242	{
		2243	int old_errno;
		2244
		2245	pipe_write_skipped = 0;
		2246	ECB_MEMORY_FENCE_RELEASE;
		2247
		2248	old_errno = errno; /* save errno because write will clobber it */
		2249
		2250	#if EV_USE_EVENTFD
		2251	if (evpipe [0] < 0)
		2252	{
		2253	uint64_t counter = 1;
		2254	write (evpipe [1], &counter, sizeof (uint64_t));
1825	}	2255	}
1826	else	2256	else
1827	# endif	2257	#endif
1828	{	2258	{
1829	while (pipe (evpipe))	2259	#ifdef _WIN32
1830	ev_syserr ("(libev) error creating signal/async pipe");	2260	WSABUF buf;
1831		2261	DWORD sent;
1832	fd_intern (evpipe [0]);	2262	buf.buf = &buf;
1833	fd_intern (evpipe [1]);	2263	buf.len = 1;
1834	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2264	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1835	}	2265	#else
1836
1837	ev_io_start (EV_A_ &pipe_w);
1838	ev_unref (EV_A); /* watcher should not keep loop alive */
1839	}
1840	}
1841
1842	inline_speed void
1843	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1844	{
1845	if (expect_true (*flag))
1846	return;
1847
1848	*flag = 1;
1849
1850	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1851
1852	pipe_write_skipped = 1;
1853
1854	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1855
1856	if (pipe_write_wanted)
1857	{
1858	int old_errno;
1859
1860	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1861
1862	old_errno = errno; /* save errno because write will clobber it */
1863
1864	#if EV_USE_EVENTFD
1865	if (evfd >= 0)
1866	{
1867	uint64_t counter = 1;
1868	write (evfd, &counter, sizeof (uint64_t));
1869	}
1870	else
1871	#endif
1872	{
1873	/* win32 people keep sending patches that change this write() to send() */
1874	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1875	/* so when you think this write should be a send instead, please find out */
1876	/* where your send() is from - it's definitely not the microsoft send, and */
1877	/* tell me. thank you. */
1878	/* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1879	/* check the ev documentation on how to use this flag */
1880	write (evpipe [1], &(evpipe [1]), 1);	2266	write (evpipe [1], &(evpipe [1]), 1);
		2267	#endif
1881	}	2268	}
1882		2269
1883	errno = old_errno;	2270	errno = old_errno;
1884	}	2271	}
1885	}	2272	}
…		…
1892	int i;	2279	int i;
1893		2280
1894	if (revents & EV_READ)	2281	if (revents & EV_READ)
1895	{	2282	{
1896	#if EV_USE_EVENTFD	2283	#if EV_USE_EVENTFD
1897	if (evfd >= 0)	2284	if (evpipe [0] < 0)
1898	{	2285	{
1899	uint64_t counter;	2286	uint64_t counter;
1900	read (evfd, &counter, sizeof (uint64_t));	2287	read (evpipe [1], &counter, sizeof (uint64_t));
1901	}	2288	}
1902	else	2289	else
1903	#endif	2290	#endif
1904	{	2291	{
1905	char dummy;	2292	char dummy[4];
1906	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2293	#ifdef _WIN32
		2294	WSABUF buf;
		2295	DWORD recvd;
		2296	DWORD flags = 0;
		2297	buf.buf = dummy;
		2298	buf.len = sizeof (dummy);
		2299	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2300	#else
1907	read (evpipe [0], &dummy, 1);	2301	read (evpipe [0], &dummy, sizeof (dummy));
		2302	#endif
1908	}	2303	}
1909	}	2304	}
1910		2305
1911	pipe_write_skipped = 0;	2306	pipe_write_skipped = 0;
		2307
		2308	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1912		2309
1913	#if EV_SIGNAL_ENABLE	2310	#if EV_SIGNAL_ENABLE
1914	if (sig_pending)	2311	if (sig_pending)
1915	{	2312	{
1916	sig_pending = 0;	2313	sig_pending = 0;
		2314
		2315	ECB_MEMORY_FENCE;
1917		2316
1918	for (i = EV_NSIG - 1; i--; )	2317	for (i = EV_NSIG - 1; i--; )
1919	if (expect_false (signals [i].pending))	2318	if (expect_false (signals [i].pending))
1920	ev_feed_signal_event (EV_A_ i + 1);	2319	ev_feed_signal_event (EV_A_ i + 1);
1921	}	2320	}
…		…
1923		2322
1924	#if EV_ASYNC_ENABLE	2323	#if EV_ASYNC_ENABLE
1925	if (async_pending)	2324	if (async_pending)
1926	{	2325	{
1927	async_pending = 0;	2326	async_pending = 0;
		2327
		2328	ECB_MEMORY_FENCE;
1928		2329
1929	for (i = asynccnt; i--; )	2330	for (i = asynccnt; i--; )
1930	if (asyncs [i]->sent)	2331	if (asyncs [i]->sent)
1931	{	2332	{
1932	asyncs [i]->sent = 0;	2333	asyncs [i]->sent = 0;
		2334	ECB_MEMORY_FENCE_RELEASE;
1933	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2335	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1934	}	2336	}
1935	}	2337	}
1936	#endif	2338	#endif
1937	}	2339	}
1938		2340
1939	/*****************************************************************************/	2341	/*****************************************************************************/
1940		2342
1941	void	2343	void
1942	ev_feed_signal (int signum)	2344	ev_feed_signal (int signum) EV_THROW
1943	{	2345	{
1944	#if EV_MULTIPLICITY	2346	#if EV_MULTIPLICITY
		2347	EV_P;
		2348	ECB_MEMORY_FENCE_ACQUIRE;
1945	EV_P = signals [signum - 1].loop;	2349	EV_A = signals [signum - 1].loop;
1946		2350
1947	if (!EV_A)	2351	if (!EV_A)
1948	return;	2352	return;
1949	#endif	2353	#endif
1950		2354
1951	if (!ev_active (&pipe_w))
1952	return;
1953
1954	signals [signum - 1].pending = 1;	2355	signals [signum - 1].pending = 1;
1955	evpipe_write (EV_A_ &sig_pending);	2356	evpipe_write (EV_A_ &sig_pending);
1956	}	2357	}
1957		2358
1958	static void	2359	static void
…		…
1964		2365
1965	ev_feed_signal (signum);	2366	ev_feed_signal (signum);
1966	}	2367	}
1967		2368
1968	void noinline	2369	void noinline
1969	ev_feed_signal_event (EV_P_ int signum)	2370	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1970	{	2371	{
1971	WL w;	2372	WL w;
1972		2373
1973	if (expect_false (signum <= 0 || signum > EV_NSIG))	2374	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1974	return;	2375	return;
1975		2376
1976	--signum;	2377	--signum;
1977		2378
1978	#if EV_MULTIPLICITY	2379	#if EV_MULTIPLICITY
…		…
1982	if (expect_false (signals [signum].loop != EV_A))	2383	if (expect_false (signals [signum].loop != EV_A))
1983	return;	2384	return;
1984	#endif	2385	#endif
1985		2386
1986	signals [signum].pending = 0;	2387	signals [signum].pending = 0;
		2388	ECB_MEMORY_FENCE_RELEASE;
1987		2389
1988	for (w = signals [signum].head; w; w = w->next)	2390	for (w = signals [signum].head; w; w = w->next)
1989	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2391	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1990	}	2392	}
1991		2393
…		…
2090	#if EV_USE_SELECT	2492	#if EV_USE_SELECT
2091	# include "ev_select.c"	2493	# include "ev_select.c"
2092	#endif	2494	#endif
2093		2495
2094	int ecb_cold	2496	int ecb_cold
2095	ev_version_major (void)	2497	ev_version_major (void) EV_THROW
2096	{	2498	{
2097	return EV_VERSION_MAJOR;	2499	return EV_VERSION_MAJOR;
2098	}	2500	}
2099		2501
2100	int ecb_cold	2502	int ecb_cold
2101	ev_version_minor (void)	2503	ev_version_minor (void) EV_THROW
2102	{	2504	{
2103	return EV_VERSION_MINOR;	2505	return EV_VERSION_MINOR;
2104	}	2506	}
2105		2507
2106	/* return true if we are running with elevated privileges and should ignore env variables */	2508	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2114	|| getgid () != getegid ();	2516	|| getgid () != getegid ();
2115	#endif	2517	#endif
2116	}	2518	}
2117		2519
2118	unsigned int ecb_cold	2520	unsigned int ecb_cold
2119	ev_supported_backends (void)	2521	ev_supported_backends (void) EV_THROW
2120	{	2522	{
2121	unsigned int flags = 0;	2523	unsigned int flags = 0;
2122		2524
2123	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2525	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2124	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2526	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2128		2530
2129	return flags;	2531	return flags;
2130	}	2532	}
2131		2533
2132	unsigned int ecb_cold	2534	unsigned int ecb_cold
2133	ev_recommended_backends (void)	2535	ev_recommended_backends (void) EV_THROW
2134	{	2536	{
2135	unsigned int flags = ev_supported_backends ();	2537	unsigned int flags = ev_supported_backends ();
2136		2538
2137	#ifndef __NetBSD__	2539	#ifndef __NetBSD__
2138	/* kqueue is borked on everything but netbsd apparently */	2540	/* kqueue is borked on everything but netbsd apparently */
…		…
2150		2552
2151	return flags;	2553	return flags;
2152	}	2554	}
2153		2555
2154	unsigned int ecb_cold	2556	unsigned int ecb_cold
2155	ev_embeddable_backends (void)	2557	ev_embeddable_backends (void) EV_THROW
2156	{	2558	{
2157	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2559	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2158		2560
2159	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2561	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2160	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2562	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2162		2564
2163	return flags;	2565	return flags;
2164	}	2566	}
2165		2567
2166	unsigned int	2568	unsigned int
2167	ev_backend (EV_P)	2569	ev_backend (EV_P) EV_THROW
2168	{	2570	{
2169	return backend;	2571	return backend;
2170	}	2572	}
2171		2573
2172	#if EV_FEATURE_API	2574	#if EV_FEATURE_API
2173	unsigned int	2575	unsigned int
2174	ev_iteration (EV_P)	2576	ev_iteration (EV_P) EV_THROW
2175	{	2577	{
2176	return loop_count;	2578	return loop_count;
2177	}	2579	}
2178		2580
2179	unsigned int	2581	unsigned int
2180	ev_depth (EV_P)	2582	ev_depth (EV_P) EV_THROW
2181	{	2583	{
2182	return loop_depth;	2584	return loop_depth;
2183	}	2585	}
2184		2586
2185	void	2587	void
2186	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2588	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2187	{	2589	{
2188	io_blocktime = interval;	2590	io_blocktime = interval;
2189	}	2591	}
2190		2592
2191	void	2593	void
2192	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2594	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2193	{	2595	{
2194	timeout_blocktime = interval;	2596	timeout_blocktime = interval;
2195	}	2597	}
2196		2598
2197	void	2599	void
2198	ev_set_userdata (EV_P_ void *data)	2600	ev_set_userdata (EV_P_ void *data) EV_THROW
2199	{	2601	{
2200	userdata = data;	2602	userdata = data;
2201	}	2603	}
2202		2604
2203	void *	2605	void *
2204	ev_userdata (EV_P)	2606	ev_userdata (EV_P) EV_THROW
2205	{	2607	{
2206	return userdata;	2608	return userdata;
2207	}	2609	}
2208		2610
2209	void	2611	void
2210	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2612	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2211	{	2613	{
2212	invoke_cb = invoke_pending_cb;	2614	invoke_cb = invoke_pending_cb;
2213	}	2615	}
2214		2616
2215	void	2617	void
2216	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2618	ev_set_loop_release_cb (EV_P_ ev_loop_callback EV_THROW release, ev_loop_callback EV_THROW acquire) EV_THROW
2217	{	2619	{
2218	release_cb = release;	2620	release_cb = release;
2219	acquire_cb = acquire;	2621	acquire_cb = acquire;
2220	}	2622	}
2221	#endif	2623	#endif
2222		2624
2223	/* initialise a loop structure, must be zero-initialised */	2625	/* initialise a loop structure, must be zero-initialised */
2224	static void noinline ecb_cold	2626	static void noinline ecb_cold
2225	loop_init (EV_P_ unsigned int flags)	2627	loop_init (EV_P_ unsigned int flags) EV_THROW
2226	{	2628	{
2227	if (!backend)	2629	if (!backend)
2228	{	2630	{
2229	origflags = flags;	2631	origflags = flags;
2230		2632
…		…
2275	#if EV_ASYNC_ENABLE	2677	#if EV_ASYNC_ENABLE
2276	async_pending = 0;	2678	async_pending = 0;
2277	#endif	2679	#endif
2278	pipe_write_skipped = 0;	2680	pipe_write_skipped = 0;
2279	pipe_write_wanted = 0;	2681	pipe_write_wanted = 0;
		2682	evpipe [0] = -1;
		2683	evpipe [1] = -1;
2280	#if EV_USE_INOTIFY	2684	#if EV_USE_INOTIFY
2281	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2685	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2282	#endif	2686	#endif
2283	#if EV_USE_SIGNALFD	2687	#if EV_USE_SIGNALFD
2284	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2688	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2335	EV_INVOKE_PENDING;	2739	EV_INVOKE_PENDING;
2336	}	2740	}
2337	#endif	2741	#endif
2338		2742
2339	#if EV_CHILD_ENABLE	2743	#if EV_CHILD_ENABLE
2340	if (ev_is_active (&childev))	2744	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2341	{	2745	{
2342	ev_ref (EV_A); /* child watcher */	2746	ev_ref (EV_A); /* child watcher */
2343	ev_signal_stop (EV_A_ &childev);	2747	ev_signal_stop (EV_A_ &childev);
2344	}	2748	}
2345	#endif	2749	#endif
…		…
2347	if (ev_is_active (&pipe_w))	2751	if (ev_is_active (&pipe_w))
2348	{	2752	{
2349	/*ev_ref (EV_A);*/	2753	/*ev_ref (EV_A);*/
2350	/*ev_io_stop (EV_A_ &pipe_w);*/	2754	/*ev_io_stop (EV_A_ &pipe_w);*/
2351		2755
2352	#if EV_USE_EVENTFD
2353	if (evfd >= 0)
2354	close (evfd);
2355	#endif
2356
2357	if (evpipe [0] >= 0)
2358	{
2359	EV_WIN32_CLOSE_FD (evpipe [0]);	2756	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2360	EV_WIN32_CLOSE_FD (evpipe [1]);	2757	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2361	}
2362	}	2758	}
2363		2759
2364	#if EV_USE_SIGNALFD	2760	#if EV_USE_SIGNALFD
2365	if (ev_is_active (&sigfd_w))	2761	if (ev_is_active (&sigfd_w))
2366	close (sigfd);	2762	close (sigfd);
…		…
2452	#endif	2848	#endif
2453	#if EV_USE_INOTIFY	2849	#if EV_USE_INOTIFY
2454	infy_fork (EV_A);	2850	infy_fork (EV_A);
2455	#endif	2851	#endif
2456		2852
		2853	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2457	if (ev_is_active (&pipe_w))	2854	if (ev_is_active (&pipe_w))
2458	{	2855	{
2459	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2856	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2460		2857
2461	ev_ref (EV_A);	2858	ev_ref (EV_A);
2462	ev_io_stop (EV_A_ &pipe_w);	2859	ev_io_stop (EV_A_ &pipe_w);
2463		2860
2464	#if EV_USE_EVENTFD
2465	if (evfd >= 0)
2466	close (evfd);
2467	#endif
2468
2469	if (evpipe [0] >= 0)	2861	if (evpipe [0] >= 0)
2470	{
2471	EV_WIN32_CLOSE_FD (evpipe [0]);	2862	EV_WIN32_CLOSE_FD (evpipe [0]);
2472	EV_WIN32_CLOSE_FD (evpipe [1]);
2473	}
2474		2863
2475	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476	evpipe_init (EV_A);	2864	evpipe_init (EV_A);
2477	/* now iterate over everything, in case we missed something */	2865	/* iterate over everything, in case we missed something before */
2478	pipecb (EV_A_ &pipe_w, EV_READ);	2866	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2479	#endif
2480	}	2867	}
		2868	#endif
2481		2869
2482	postfork = 0;	2870	postfork = 0;
2483	}	2871	}
2484		2872
2485	#if EV_MULTIPLICITY	2873	#if EV_MULTIPLICITY
2486		2874
2487	struct ev_loop * ecb_cold	2875	struct ev_loop * ecb_cold
2488	ev_loop_new (unsigned int flags)	2876	ev_loop_new (unsigned int flags) EV_THROW
2489	{	2877	{
2490	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2878	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2491		2879
2492	memset (EV_A, 0, sizeof (struct ev_loop));	2880	memset (EV_A, 0, sizeof (struct ev_loop));
2493	loop_init (EV_A_ flags);	2881	loop_init (EV_A_ flags);
…		…
2537	}	2925	}
2538	#endif	2926	#endif
2539		2927
2540	#if EV_FEATURE_API	2928	#if EV_FEATURE_API
2541	void ecb_cold	2929	void ecb_cold
2542	ev_verify (EV_P)	2930	ev_verify (EV_P) EV_THROW
2543	{	2931	{
2544	#if EV_VERIFY	2932	#if EV_VERIFY
2545	int i;	2933	int i;
2546	WL w;	2934	WL w, w2;
2547		2935
2548	assert (activecnt >= -1);	2936	assert (activecnt >= -1);
2549		2937
2550	assert (fdchangemax >= fdchangecnt);	2938	assert (fdchangemax >= fdchangecnt);
2551	for (i = 0; i < fdchangecnt; ++i)	2939	for (i = 0; i < fdchangecnt; ++i)
2552	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2940	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2553		2941
2554	assert (anfdmax >= 0);	2942	assert (anfdmax >= 0);
2555	for (i = 0; i < anfdmax; ++i)	2943	for (i = 0; i < anfdmax; ++i)
		2944	{
		2945	int j = 0;
		2946
2556	for (w = anfds [i].head; w; w = w->next)	2947	for (w = w2 = anfds [i].head; w; w = w->next)
2557	{	2948	{
2558	verify_watcher (EV_A_ (W)w);	2949	verify_watcher (EV_A_ (W)w);
		2950
		2951	if (j++ & 1)
		2952	{
		2953	assert (("libev: io watcher list contains a loop", w != w2));
		2954	w2 = w2->next;
		2955	}
		2956
2559	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2957	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2560	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2958	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2561	}	2959	}
		2960	}
2562		2961
2563	assert (timermax >= timercnt);	2962	assert (timermax >= timercnt);
2564	verify_heap (EV_A_ timers, timercnt);	2963	verify_heap (EV_A_ timers, timercnt);
2565		2964
2566	#if EV_PERIODIC_ENABLE	2965	#if EV_PERIODIC_ENABLE
…		…
2616	#if EV_MULTIPLICITY	3015	#if EV_MULTIPLICITY
2617	struct ev_loop * ecb_cold	3016	struct ev_loop * ecb_cold
2618	#else	3017	#else
2619	int	3018	int
2620	#endif	3019	#endif
2621	ev_default_loop (unsigned int flags)	3020	ev_default_loop (unsigned int flags) EV_THROW
2622	{	3021	{
2623	if (!ev_default_loop_ptr)	3022	if (!ev_default_loop_ptr)
2624	{	3023	{
2625	#if EV_MULTIPLICITY	3024	#if EV_MULTIPLICITY
2626	EV_P = ev_default_loop_ptr = &default_loop_struct;	3025	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2645		3044
2646	return ev_default_loop_ptr;	3045	return ev_default_loop_ptr;
2647	}	3046	}
2648		3047
2649	void	3048	void
2650	ev_loop_fork (EV_P)	3049	ev_loop_fork (EV_P) EV_THROW
2651	{	3050	{
2652	postfork = 1; /* must be in line with ev_default_fork */	3051	postfork = 1;
2653	}	3052	}
2654		3053
2655	/*****************************************************************************/	3054	/*****************************************************************************/
2656		3055
2657	void	3056	void
…		…
2659	{	3058	{
2660	EV_CB_INVOKE ((W)w, revents);	3059	EV_CB_INVOKE ((W)w, revents);
2661	}	3060	}
2662		3061
2663	unsigned int	3062	unsigned int
2664	ev_pending_count (EV_P)	3063	ev_pending_count (EV_P) EV_THROW
2665	{	3064	{
2666	int pri;	3065	int pri;
2667	unsigned int count = 0;	3066	unsigned int count = 0;
2668		3067
2669	for (pri = NUMPRI; pri--; )	3068	for (pri = NUMPRI; pri--; )
…		…
2673	}	3072	}
2674		3073
2675	void noinline	3074	void noinline
2676	ev_invoke_pending (EV_P)	3075	ev_invoke_pending (EV_P)
2677	{	3076	{
2678	int pri;	3077	pendingpri = NUMPRI;
2679		3078
2680	for (pri = NUMPRI; pri--; )	3079	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		3080	{
		3081	--pendingpri;
		3082
2681	while (pendingcnt [pri])	3083	while (pendingcnt [pendingpri])
2682	{	3084	{
2683	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	3085	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2684		3086
2685	p->w->pending = 0;	3087	p->w->pending = 0;
2686	EV_CB_INVOKE (p->w, p->events);	3088	EV_CB_INVOKE (p->w, p->events);
2687	EV_FREQUENT_CHECK;	3089	EV_FREQUENT_CHECK;
2688	}	3090	}
		3091	}
2689	}	3092	}
2690		3093
2691	#if EV_IDLE_ENABLE	3094	#if EV_IDLE_ENABLE
2692	/* make idle watchers pending. this handles the "call-idle */	3095	/* make idle watchers pending. this handles the "call-idle */
2693	/* only when higher priorities are idle" logic */	3096	/* only when higher priorities are idle" logic */
…		…
2783	{	3186	{
2784	EV_FREQUENT_CHECK;	3187	EV_FREQUENT_CHECK;
2785		3188
2786	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3189	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2787	{	3190	{
2788	int feed_count = 0;
2789
2790	do	3191	do
2791	{	3192	{
2792	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3193	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2793		3194
2794	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3195	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2928		3329
2929	mn_now = ev_rt_now;	3330	mn_now = ev_rt_now;
2930	}	3331	}
2931	}	3332	}
2932		3333
2933	void	3334	int
2934	ev_run (EV_P_ int flags)	3335	ev_run (EV_P_ int flags)
2935	{	3336	{
2936	#if EV_FEATURE_API	3337	#if EV_FEATURE_API
2937	++loop_depth;	3338	++loop_depth;
2938	#endif	3339	#endif
…		…
3053	backend_poll (EV_A_ waittime);	3454	backend_poll (EV_A_ waittime);
3054	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3455	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3055		3456
3056	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3457	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3057		3458
		3459	ECB_MEMORY_FENCE_ACQUIRE;
3058	if (pipe_write_skipped)	3460	if (pipe_write_skipped)
3059	{	3461	{
3060	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3462	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3061	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3463	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3062	}	3464	}
…		…
3095	loop_done = EVBREAK_CANCEL;	3497	loop_done = EVBREAK_CANCEL;
3096		3498
3097	#if EV_FEATURE_API	3499	#if EV_FEATURE_API
3098	--loop_depth;	3500	--loop_depth;
3099	#endif	3501	#endif
		3502
		3503	return activecnt;
3100	}	3504	}
3101		3505
3102	void	3506	void
3103	ev_break (EV_P_ int how)	3507	ev_break (EV_P_ int how) EV_THROW
3104	{	3508	{
3105	loop_done = how;	3509	loop_done = how;
3106	}	3510	}
3107		3511
3108	void	3512	void
3109	ev_ref (EV_P)	3513	ev_ref (EV_P) EV_THROW
3110	{	3514	{
3111	++activecnt;	3515	++activecnt;
3112	}	3516	}
3113		3517
3114	void	3518	void
3115	ev_unref (EV_P)	3519	ev_unref (EV_P) EV_THROW
3116	{	3520	{
3117	--activecnt;	3521	--activecnt;
3118	}	3522	}
3119		3523
3120	void	3524	void
3121	ev_now_update (EV_P)	3525	ev_now_update (EV_P) EV_THROW
3122	{	3526	{
3123	time_update (EV_A_ 1e100);	3527	time_update (EV_A_ 1e100);
3124	}	3528	}
3125		3529
3126	void	3530	void
3127	ev_suspend (EV_P)	3531	ev_suspend (EV_P) EV_THROW
3128	{	3532	{
3129	ev_now_update (EV_A);	3533	ev_now_update (EV_A);
3130	}	3534	}
3131		3535
3132	void	3536	void
3133	ev_resume (EV_P)	3537	ev_resume (EV_P) EV_THROW
3134	{	3538	{
3135	ev_tstamp mn_prev = mn_now;	3539	ev_tstamp mn_prev = mn_now;
3136		3540
3137	ev_now_update (EV_A);	3541	ev_now_update (EV_A);
3138	timers_reschedule (EV_A_ mn_now - mn_prev);	3542	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3177	w->pending = 0;	3581	w->pending = 0;
3178	}	3582	}
3179	}	3583	}
3180		3584
3181	int	3585	int
3182	ev_clear_pending (EV_P_ void *w)	3586	ev_clear_pending (EV_P_ void *w) EV_THROW
3183	{	3587	{
3184	W w_ = (W)w;	3588	W w_ = (W)w;
3185	int pending = w_->pending;	3589	int pending = w_->pending;
3186		3590
3187	if (expect_true (pending))	3591	if (expect_true (pending))
…		…
3220	}	3624	}
3221		3625
3222	/*****************************************************************************/	3626	/*****************************************************************************/
3223		3627
3224	void noinline	3628	void noinline
3225	ev_io_start (EV_P_ ev_io *w)	3629	ev_io_start (EV_P_ ev_io *w) EV_THROW
3226	{	3630	{
3227	int fd = w->fd;	3631	int fd = w->fd;
3228		3632
3229	if (expect_false (ev_is_active (w)))	3633	if (expect_false (ev_is_active (w)))
3230	return;	3634	return;
…		…
3236		3640
3237	ev_start (EV_A_ (W)w, 1);	3641	ev_start (EV_A_ (W)w, 1);
3238	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3642	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3239	wlist_add (&anfds[fd].head, (WL)w);	3643	wlist_add (&anfds[fd].head, (WL)w);
3240		3644
		3645	/* common bug, apparently */
		3646	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3647
3241	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3648	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3242	w->events &= ~EV__IOFDSET;	3649	w->events &= ~EV__IOFDSET;
3243		3650
3244	EV_FREQUENT_CHECK;	3651	EV_FREQUENT_CHECK;
3245	}	3652	}
3246		3653
3247	void noinline	3654	void noinline
3248	ev_io_stop (EV_P_ ev_io *w)	3655	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3249	{	3656	{
3250	clear_pending (EV_A_ (W)w);	3657	clear_pending (EV_A_ (W)w);
3251	if (expect_false (!ev_is_active (w)))	3658	if (expect_false (!ev_is_active (w)))
3252	return;	3659	return;
3253		3660
…		…
3262		3669
3263	EV_FREQUENT_CHECK;	3670	EV_FREQUENT_CHECK;
3264	}	3671	}
3265		3672
3266	void noinline	3673	void noinline
3267	ev_timer_start (EV_P_ ev_timer *w)	3674	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3268	{	3675	{
3269	if (expect_false (ev_is_active (w)))	3676	if (expect_false (ev_is_active (w)))
3270	return;	3677	return;
3271		3678
3272	ev_at (w) += mn_now;	3679	ev_at (w) += mn_now;
…		…
3286		3693
3287	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3694	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3288	}	3695	}
3289		3696
3290	void noinline	3697	void noinline
3291	ev_timer_stop (EV_P_ ev_timer *w)	3698	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3292	{	3699	{
3293	clear_pending (EV_A_ (W)w);	3700	clear_pending (EV_A_ (W)w);
3294	if (expect_false (!ev_is_active (w)))	3701	if (expect_false (!ev_is_active (w)))
3295	return;	3702	return;
3296		3703
…		…
3316		3723
3317	EV_FREQUENT_CHECK;	3724	EV_FREQUENT_CHECK;
3318	}	3725	}
3319		3726
3320	void noinline	3727	void noinline
3321	ev_timer_again (EV_P_ ev_timer *w)	3728	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3322	{	3729	{
3323	EV_FREQUENT_CHECK;	3730	EV_FREQUENT_CHECK;
3324		3731
3325	clear_pending (EV_A_ (W)w);	3732	clear_pending (EV_A_ (W)w);
3326		3733
…		…
3343		3750
3344	EV_FREQUENT_CHECK;	3751	EV_FREQUENT_CHECK;
3345	}	3752	}
3346		3753
3347	ev_tstamp	3754	ev_tstamp
3348	ev_timer_remaining (EV_P_ ev_timer *w)	3755	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3349	{	3756	{
3350	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3757	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3351	}	3758	}
3352		3759
3353	#if EV_PERIODIC_ENABLE	3760	#if EV_PERIODIC_ENABLE
3354	void noinline	3761	void noinline
3355	ev_periodic_start (EV_P_ ev_periodic *w)	3762	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3356	{	3763	{
3357	if (expect_false (ev_is_active (w)))	3764	if (expect_false (ev_is_active (w)))
3358	return;	3765	return;
3359		3766
3360	if (w->reschedule_cb)	3767	if (w->reschedule_cb)
…		…
3380		3787
3381	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3788	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3382	}	3789	}
3383		3790
3384	void noinline	3791	void noinline
3385	ev_periodic_stop (EV_P_ ev_periodic *w)	3792	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3386	{	3793	{
3387	clear_pending (EV_A_ (W)w);	3794	clear_pending (EV_A_ (W)w);
3388	if (expect_false (!ev_is_active (w)))	3795	if (expect_false (!ev_is_active (w)))
3389	return;	3796	return;
3390		3797
…		…
3408		3815
3409	EV_FREQUENT_CHECK;	3816	EV_FREQUENT_CHECK;
3410	}	3817	}
3411		3818
3412	void noinline	3819	void noinline
3413	ev_periodic_again (EV_P_ ev_periodic *w)	3820	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3414	{	3821	{
3415	/* TODO: use adjustheap and recalculation */	3822	/* TODO: use adjustheap and recalculation */
3416	ev_periodic_stop (EV_A_ w);	3823	ev_periodic_stop (EV_A_ w);
3417	ev_periodic_start (EV_A_ w);	3824	ev_periodic_start (EV_A_ w);
3418	}	3825	}
…		…
3423	#endif	3830	#endif
3424		3831
3425	#if EV_SIGNAL_ENABLE	3832	#if EV_SIGNAL_ENABLE
3426		3833
3427	void noinline	3834	void noinline
3428	ev_signal_start (EV_P_ ev_signal *w)	3835	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3429	{	3836	{
3430	if (expect_false (ev_is_active (w)))	3837	if (expect_false (ev_is_active (w)))
3431	return;	3838	return;
3432		3839
3433	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3840	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3435	#if EV_MULTIPLICITY	3842	#if EV_MULTIPLICITY
3436	assert (("libev: a signal must not be attached to two different loops",	3843	assert (("libev: a signal must not be attached to two different loops",
3437	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3844	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3438		3845
3439	signals [w->signum - 1].loop = EV_A;	3846	signals [w->signum - 1].loop = EV_A;
		3847	ECB_MEMORY_FENCE_RELEASE;
3440	#endif	3848	#endif
3441		3849
3442	EV_FREQUENT_CHECK;	3850	EV_FREQUENT_CHECK;
3443		3851
3444	#if EV_USE_SIGNALFD	3852	#if EV_USE_SIGNALFD
…		…
3504		3912
3505	EV_FREQUENT_CHECK;	3913	EV_FREQUENT_CHECK;
3506	}	3914	}
3507		3915
3508	void noinline	3916	void noinline
3509	ev_signal_stop (EV_P_ ev_signal *w)	3917	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3510	{	3918	{
3511	clear_pending (EV_A_ (W)w);	3919	clear_pending (EV_A_ (W)w);
3512	if (expect_false (!ev_is_active (w)))	3920	if (expect_false (!ev_is_active (w)))
3513	return;	3921	return;
3514		3922
…		…
3545	#endif	3953	#endif
3546		3954
3547	#if EV_CHILD_ENABLE	3955	#if EV_CHILD_ENABLE
3548		3956
3549	void	3957	void
3550	ev_child_start (EV_P_ ev_child *w)	3958	ev_child_start (EV_P_ ev_child *w) EV_THROW
3551	{	3959	{
3552	#if EV_MULTIPLICITY	3960	#if EV_MULTIPLICITY
3553	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3961	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3554	#endif	3962	#endif
3555	if (expect_false (ev_is_active (w)))	3963	if (expect_false (ev_is_active (w)))
…		…
3562		3970
3563	EV_FREQUENT_CHECK;	3971	EV_FREQUENT_CHECK;
3564	}	3972	}
3565		3973
3566	void	3974	void
3567	ev_child_stop (EV_P_ ev_child *w)	3975	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3568	{	3976	{
3569	clear_pending (EV_A_ (W)w);	3977	clear_pending (EV_A_ (W)w);
3570	if (expect_false (!ev_is_active (w)))	3978	if (expect_false (!ev_is_active (w)))
3571	return;	3979	return;
3572		3980
…		…
3599	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4007	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3600		4008
3601	static void noinline	4009	static void noinline
3602	infy_add (EV_P_ ev_stat *w)	4010	infy_add (EV_P_ ev_stat *w)
3603	{	4011	{
3604	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	4012	w->wd = inotify_add_watch (fs_fd, w->path,
		4013	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		4014	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		4015	| IN_DONT_FOLLOW | IN_MASK_ADD);
3605		4016
3606	if (w->wd >= 0)	4017	if (w->wd >= 0)
3607	{	4018	{
3608	struct statfs sfs;	4019	struct statfs sfs;
3609		4020
…		…
3613		4024
3614	if (!fs_2625)	4025	if (!fs_2625)
3615	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	4026	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3616	else if (!statfs (w->path, &sfs)	4027	else if (!statfs (w->path, &sfs)
3617	&& (sfs.f_type == 0x1373 /* devfs */	4028	&& (sfs.f_type == 0x1373 /* devfs */
		4029	|| sfs.f_type == 0x4006 /* fat */
		4030	|| sfs.f_type == 0x4d44 /* msdos */
3618	|| sfs.f_type == 0xEF53 /* ext2/3 */	4031	|| sfs.f_type == 0xEF53 /* ext2/3 */
		4032	|| sfs.f_type == 0x72b6 /* jffs2 */
		4033	|| sfs.f_type == 0x858458f6 /* ramfs */
		4034	|| sfs.f_type == 0x5346544e /* ntfs */
3619	|| sfs.f_type == 0x3153464a /* jfs */	4035	|| sfs.f_type == 0x3153464a /* jfs */
		4036	|| sfs.f_type == 0x9123683e /* btrfs */
3620	|| sfs.f_type == 0x52654973 /* reiser3 */	4037	|| sfs.f_type == 0x52654973 /* reiser3 */
3621	|| sfs.f_type == 0x01021994 /* tempfs */	4038	|| sfs.f_type == 0x01021994 /* tmpfs */
3622	|| sfs.f_type == 0x58465342 /* xfs */))	4039	|| sfs.f_type == 0x58465342 /* xfs */))
3623	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	4040	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3624	else	4041	else
3625	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	4042	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3626	}	4043	}
…		…
3739	}	4156	}
3740		4157
3741	inline_size int	4158	inline_size int
3742	infy_newfd (void)	4159	infy_newfd (void)
3743	{	4160	{
3744	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4161	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3745	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4162	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3746	if (fd >= 0)	4163	if (fd >= 0)
3747	return fd;	4164	return fd;
3748	#endif	4165	#endif
3749	return inotify_init ();	4166	return inotify_init ();
…		…
3824	#else	4241	#else
3825	# define EV_LSTAT(p,b) lstat (p, b)	4242	# define EV_LSTAT(p,b) lstat (p, b)
3826	#endif	4243	#endif
3827		4244
3828	void	4245	void
3829	ev_stat_stat (EV_P_ ev_stat *w)	4246	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3830	{	4247	{
3831	if (lstat (w->path, &w->attr) < 0)	4248	if (lstat (w->path, &w->attr) < 0)
3832	w->attr.st_nlink = 0;	4249	w->attr.st_nlink = 0;
3833	else if (!w->attr.st_nlink)	4250	else if (!w->attr.st_nlink)
3834	w->attr.st_nlink = 1;	4251	w->attr.st_nlink = 1;
…		…
3873	ev_feed_event (EV_A_ w, EV_STAT);	4290	ev_feed_event (EV_A_ w, EV_STAT);
3874	}	4291	}
3875	}	4292	}
3876		4293
3877	void	4294	void
3878	ev_stat_start (EV_P_ ev_stat *w)	4295	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3879	{	4296	{
3880	if (expect_false (ev_is_active (w)))	4297	if (expect_false (ev_is_active (w)))
3881	return;	4298	return;
3882		4299
3883	ev_stat_stat (EV_A_ w);	4300	ev_stat_stat (EV_A_ w);
…		…
3904		4321
3905	EV_FREQUENT_CHECK;	4322	EV_FREQUENT_CHECK;
3906	}	4323	}
3907		4324
3908	void	4325	void
3909	ev_stat_stop (EV_P_ ev_stat *w)	4326	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3910	{	4327	{
3911	clear_pending (EV_A_ (W)w);	4328	clear_pending (EV_A_ (W)w);
3912	if (expect_false (!ev_is_active (w)))	4329	if (expect_false (!ev_is_active (w)))
3913	return;	4330	return;
3914		4331
…		…
3930	}	4347	}
3931	#endif	4348	#endif
3932		4349
3933	#if EV_IDLE_ENABLE	4350	#if EV_IDLE_ENABLE
3934	void	4351	void
3935	ev_idle_start (EV_P_ ev_idle *w)	4352	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3936	{	4353	{
3937	if (expect_false (ev_is_active (w)))	4354	if (expect_false (ev_is_active (w)))
3938	return;	4355	return;
3939		4356
3940	pri_adjust (EV_A_ (W)w);	4357	pri_adjust (EV_A_ (W)w);
…		…
3953		4370
3954	EV_FREQUENT_CHECK;	4371	EV_FREQUENT_CHECK;
3955	}	4372	}
3956		4373
3957	void	4374	void
3958	ev_idle_stop (EV_P_ ev_idle *w)	4375	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3959	{	4376	{
3960	clear_pending (EV_A_ (W)w);	4377	clear_pending (EV_A_ (W)w);
3961	if (expect_false (!ev_is_active (w)))	4378	if (expect_false (!ev_is_active (w)))
3962	return;	4379	return;
3963		4380
…		…
3977	}	4394	}
3978	#endif	4395	#endif
3979		4396
3980	#if EV_PREPARE_ENABLE	4397	#if EV_PREPARE_ENABLE
3981	void	4398	void
3982	ev_prepare_start (EV_P_ ev_prepare *w)	4399	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3983	{	4400	{
3984	if (expect_false (ev_is_active (w)))	4401	if (expect_false (ev_is_active (w)))
3985	return;	4402	return;
3986		4403
3987	EV_FREQUENT_CHECK;	4404	EV_FREQUENT_CHECK;
…		…
3992		4409
3993	EV_FREQUENT_CHECK;	4410	EV_FREQUENT_CHECK;
3994	}	4411	}
3995		4412
3996	void	4413	void
3997	ev_prepare_stop (EV_P_ ev_prepare *w)	4414	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3998	{	4415	{
3999	clear_pending (EV_A_ (W)w);	4416	clear_pending (EV_A_ (W)w);
4000	if (expect_false (!ev_is_active (w)))	4417	if (expect_false (!ev_is_active (w)))
4001	return;	4418	return;
4002		4419
…		…
4015	}	4432	}
4016	#endif	4433	#endif
4017		4434
4018	#if EV_CHECK_ENABLE	4435	#if EV_CHECK_ENABLE
4019	void	4436	void
4020	ev_check_start (EV_P_ ev_check *w)	4437	ev_check_start (EV_P_ ev_check *w) EV_THROW
4021	{	4438	{
4022	if (expect_false (ev_is_active (w)))	4439	if (expect_false (ev_is_active (w)))
4023	return;	4440	return;
4024		4441
4025	EV_FREQUENT_CHECK;	4442	EV_FREQUENT_CHECK;
…		…
4030		4447
4031	EV_FREQUENT_CHECK;	4448	EV_FREQUENT_CHECK;
4032	}	4449	}
4033		4450
4034	void	4451	void
4035	ev_check_stop (EV_P_ ev_check *w)	4452	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4036	{	4453	{
4037	clear_pending (EV_A_ (W)w);	4454	clear_pending (EV_A_ (W)w);
4038	if (expect_false (!ev_is_active (w)))	4455	if (expect_false (!ev_is_active (w)))
4039	return;	4456	return;
4040		4457
…		…
4053	}	4470	}
4054	#endif	4471	#endif
4055		4472
4056	#if EV_EMBED_ENABLE	4473	#if EV_EMBED_ENABLE
4057	void noinline	4474	void noinline
4058	ev_embed_sweep (EV_P_ ev_embed *w)	4475	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4059	{	4476	{
4060	ev_run (w->other, EVRUN_NOWAIT);	4477	ev_run (w->other, EVRUN_NOWAIT);
4061	}	4478	}
4062		4479
4063	static void	4480	static void
…		…
4111	ev_idle_stop (EV_A_ idle);	4528	ev_idle_stop (EV_A_ idle);
4112	}	4529	}
4113	#endif	4530	#endif
4114		4531
4115	void	4532	void
4116	ev_embed_start (EV_P_ ev_embed *w)	4533	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4117	{	4534	{
4118	if (expect_false (ev_is_active (w)))	4535	if (expect_false (ev_is_active (w)))
4119	return;	4536	return;
4120		4537
4121	{	4538	{
…		…
4142		4559
4143	EV_FREQUENT_CHECK;	4560	EV_FREQUENT_CHECK;
4144	}	4561	}
4145		4562
4146	void	4563	void
4147	ev_embed_stop (EV_P_ ev_embed *w)	4564	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4148	{	4565	{
4149	clear_pending (EV_A_ (W)w);	4566	clear_pending (EV_A_ (W)w);
4150	if (expect_false (!ev_is_active (w)))	4567	if (expect_false (!ev_is_active (w)))
4151	return;	4568	return;
4152		4569
…		…
4162	}	4579	}
4163	#endif	4580	#endif
4164		4581
4165	#if EV_FORK_ENABLE	4582	#if EV_FORK_ENABLE
4166	void	4583	void
4167	ev_fork_start (EV_P_ ev_fork *w)	4584	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4168	{	4585	{
4169	if (expect_false (ev_is_active (w)))	4586	if (expect_false (ev_is_active (w)))
4170	return;	4587	return;
4171		4588
4172	EV_FREQUENT_CHECK;	4589	EV_FREQUENT_CHECK;
…		…
4177		4594
4178	EV_FREQUENT_CHECK;	4595	EV_FREQUENT_CHECK;
4179	}	4596	}
4180		4597
4181	void	4598	void
4182	ev_fork_stop (EV_P_ ev_fork *w)	4599	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4183	{	4600	{
4184	clear_pending (EV_A_ (W)w);	4601	clear_pending (EV_A_ (W)w);
4185	if (expect_false (!ev_is_active (w)))	4602	if (expect_false (!ev_is_active (w)))
4186	return;	4603	return;
4187		4604
…		…
4200	}	4617	}
4201	#endif	4618	#endif
4202		4619
4203	#if EV_CLEANUP_ENABLE	4620	#if EV_CLEANUP_ENABLE
4204	void	4621	void
4205	ev_cleanup_start (EV_P_ ev_cleanup *w)	4622	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4206	{	4623	{
4207	if (expect_false (ev_is_active (w)))	4624	if (expect_false (ev_is_active (w)))
4208	return;	4625	return;
4209		4626
4210	EV_FREQUENT_CHECK;	4627	EV_FREQUENT_CHECK;
…		…
4217	ev_unref (EV_A);	4634	ev_unref (EV_A);
4218	EV_FREQUENT_CHECK;	4635	EV_FREQUENT_CHECK;
4219	}	4636	}
4220		4637
4221	void	4638	void
4222	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4639	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4223	{	4640	{
4224	clear_pending (EV_A_ (W)w);	4641	clear_pending (EV_A_ (W)w);
4225	if (expect_false (!ev_is_active (w)))	4642	if (expect_false (!ev_is_active (w)))
4226	return;	4643	return;
4227		4644
…		…
4241	}	4658	}
4242	#endif	4659	#endif
4243		4660
4244	#if EV_ASYNC_ENABLE	4661	#if EV_ASYNC_ENABLE
4245	void	4662	void
4246	ev_async_start (EV_P_ ev_async *w)	4663	ev_async_start (EV_P_ ev_async *w) EV_THROW
4247	{	4664	{
4248	if (expect_false (ev_is_active (w)))	4665	if (expect_false (ev_is_active (w)))
4249	return;	4666	return;
4250		4667
4251	w->sent = 0;	4668	w->sent = 0;
…		…
4260		4677
4261	EV_FREQUENT_CHECK;	4678	EV_FREQUENT_CHECK;
4262	}	4679	}
4263		4680
4264	void	4681	void
4265	ev_async_stop (EV_P_ ev_async *w)	4682	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4266	{	4683	{
4267	clear_pending (EV_A_ (W)w);	4684	clear_pending (EV_A_ (W)w);
4268	if (expect_false (!ev_is_active (w)))	4685	if (expect_false (!ev_is_active (w)))
4269	return;	4686	return;
4270		4687
…		…
4281		4698
4282	EV_FREQUENT_CHECK;	4699	EV_FREQUENT_CHECK;
4283	}	4700	}
4284		4701
4285	void	4702	void
4286	ev_async_send (EV_P_ ev_async *w)	4703	ev_async_send (EV_P_ ev_async *w) EV_THROW
4287	{	4704	{
4288	w->sent = 1;	4705	w->sent = 1;
4289	evpipe_write (EV_A_ &async_pending);	4706	evpipe_write (EV_A_ &async_pending);
4290	}	4707	}
4291	#endif	4708	#endif
…		…
4328		4745
4329	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4746	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4330	}	4747	}
4331		4748
4332	void	4749	void
4333	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4750	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4334	{	4751	{
4335	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4752	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4336		4753
4337	if (expect_false (!once))	4754	if (expect_false (!once))
4338	{	4755	{
…		…
4360		4777
4361	/*****************************************************************************/	4778	/*****************************************************************************/
4362		4779
4363	#if EV_WALK_ENABLE	4780	#if EV_WALK_ENABLE
4364	void ecb_cold	4781	void ecb_cold
4365	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4782	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4366	{	4783	{
4367	int i, j;	4784	int i, j;
4368	ev_watcher_list *wl, *wn;	4785	ev_watcher_list *wl, *wn;
4369		4786
4370	if (types & (EV_IO | EV_EMBED))	4787	if (types & (EV_IO | EV_EMBED))

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