ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.406 by root, Tue Jan 24 16:37:12 2012 UTC vs.
Revision 1.467 by root, Fri May 16 15:15:39 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	*
…		…
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
…		…
183	# include EV_H	183	# include EV_H
184	#else	184	#else
185	# include "ev.h"	185	# include "ev.h"
186	#endif	186	#endif
187		187
		188	#if EV_NO_THREADS
		189	# undef EV_NO_SMP
		190	# define EV_NO_SMP 1
		191	# undef ECB_NO_THREADS
		192	# define ECB_NO_THREADS 1
		193	#endif
		194	#if EV_NO_SMP
		195	# undef EV_NO_SMP
		196	# define ECB_NO_SMP 1
		197	#endif
		198
188	#ifndef _WIN32	199	#ifndef _WIN32
189	# include <sys/time.h>	200	# include <sys/time.h>
190	# include <sys/wait.h>	201	# include <sys/wait.h>
191	# include <unistd.h>	202	# include <unistd.h>
192	#else	203	#else
193	# include <io.h>	204	# include <io.h>
194	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
195	# include <windows.h>	207	# include <windows.h>
196	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
197	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
198	# endif	210	# endif
199	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
208	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
209		221
210	/* 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 */
211		223
212	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
213	#if defined (EV_NSIG)	225	#if defined EV_NSIG
214	/* use what's provided */	226	/* use what's provided */
215	#elif defined (NSIG)	227	#elif defined NSIG
216	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
217	#elif defined(_NSIG)	229	#elif defined _NSIG
218	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
219	#elif defined (SIGMAX)	231	#elif defined SIGMAX
220	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
221	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
222	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
223	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
224	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
225	#elif defined (MAXSIG)	237	#elif defined MAXSIG
226	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
227	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
228	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
229	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
230	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
232	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233	#else	245	#else
234	# error "unable to find value for NSIG, please report"	246	# define EV_NSIG (8 * sizeof (sigset_t) + 1)
235	/* to make it compile regardless, just remove the above line, */
236	/* but consider reporting it, too! :) */
237	# define EV_NSIG 65
238	#endif	247	#endif
239		248
240	#ifndef EV_USE_FLOOR	249	#ifndef EV_USE_FLOOR
241	# define EV_USE_FLOOR 0	250	# define EV_USE_FLOOR 0
242	#endif	251	#endif
243		252
244	#ifndef EV_USE_CLOCK_SYSCALL	253	#ifndef EV_USE_CLOCK_SYSCALL
245	# if __linux && __GLIBC__ >= 2	254	# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
246	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	255	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
247	# else	256	# else
248	# define EV_USE_CLOCK_SYSCALL 0	257	# define EV_USE_CLOCK_SYSCALL 0
249	# endif	258	# endif
250	#endif	259	#endif
251		260
252	#ifndef EV_USE_MONOTONIC	261	#ifndef EV_USE_MONOTONIC
253	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	262	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254	# define EV_USE_MONOTONIC EV_FEATURE_OS	263	# define EV_USE_MONOTONIC EV_FEATURE_OS
255	# else	264	# else
256	# define EV_USE_MONOTONIC 0	265	# define EV_USE_MONOTONIC 0
257	# endif	266	# endif
258	#endif	267	#endif
…		…
345		354
346	#ifndef EV_HEAP_CACHE_AT	355	#ifndef EV_HEAP_CACHE_AT
347	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	356	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
348	#endif	357	#endif
349		358
		359	#ifdef ANDROID
		360	/* supposedly, android doesn't typedef fd_mask */
		361	# undef EV_USE_SELECT
		362	# define EV_USE_SELECT 0
		363	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		364	# undef EV_USE_CLOCK_SYSCALL
		365	# define EV_USE_CLOCK_SYSCALL 0
		366	#endif
		367
		368	/* aix's poll.h seems to cause lots of trouble */
		369	#ifdef _AIX
		370	/* AIX has a completely broken poll.h header */
		371	# undef EV_USE_POLL
		372	# define EV_USE_POLL 0
		373	#endif
		374
350	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	375	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
351	/* which makes programs even slower. might work on other unices, too. */	376	/* which makes programs even slower. might work on other unices, too. */
352	#if EV_USE_CLOCK_SYSCALL	377	#if EV_USE_CLOCK_SYSCALL
353	# include <syscall.h>	378	# include <sys/syscall.h>
354	# ifdef SYS_clock_gettime	379	# ifdef SYS_clock_gettime
355	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	380	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356	# undef EV_USE_MONOTONIC	381	# undef EV_USE_MONOTONIC
357	# define EV_USE_MONOTONIC 1	382	# define EV_USE_MONOTONIC 1
358	# else	383	# else
…		…
361	# endif	386	# endif
362	#endif	387	#endif
363		388
364	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	389	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
365		390
366	#ifdef _AIX
367	/* AIX has a completely broken poll.h header */
368	# undef EV_USE_POLL
369	# define EV_USE_POLL 0
370	#endif
371
372	#ifndef CLOCK_MONOTONIC	391	#ifndef CLOCK_MONOTONIC
373	# undef EV_USE_MONOTONIC	392	# undef EV_USE_MONOTONIC
374	# define EV_USE_MONOTONIC 0	393	# define EV_USE_MONOTONIC 0
375	#endif	394	#endif
376		395
…		…
384	# define EV_USE_INOTIFY 0	403	# define EV_USE_INOTIFY 0
385	#endif	404	#endif
386		405
387	#if !EV_USE_NANOSLEEP	406	#if !EV_USE_NANOSLEEP
388	/* hp-ux has it in sys/time.h, which we unconditionally include above */	407	/* hp-ux has it in sys/time.h, which we unconditionally include above */
389	# if !defined(_WIN32) && !defined(__hpux)	408	# if !defined _WIN32 && !defined __hpux
390	# include <sys/select.h>	409	# include <sys/select.h>
391	# endif	410	# endif
392	#endif	411	#endif
393		412
394	#if EV_USE_INOTIFY	413	#if EV_USE_INOTIFY
…		…
397	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	416	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
398	# ifndef IN_DONT_FOLLOW	417	# ifndef IN_DONT_FOLLOW
399	# undef EV_USE_INOTIFY	418	# undef EV_USE_INOTIFY
400	# define EV_USE_INOTIFY 0	419	# define EV_USE_INOTIFY 0
401	# endif	420	# endif
402	#endif
403
404	#if EV_SELECT_IS_WINSOCKET
405	# include <winsock.h>
406	#endif	421	#endif
407		422
408	#if EV_USE_EVENTFD	423	#if EV_USE_EVENTFD
409	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	424	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410	# include <stdint.h>	425	# include <stdint.h>
…		…
467	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	482	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468	/* ECB.H BEGIN */	483	/* ECB.H BEGIN */
469	/*	484	/*
470	* libecb - http://software.schmorp.de/pkg/libecb	485	* libecb - http://software.schmorp.de/pkg/libecb
471	*	486	*
472	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	487	* Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
473	* Copyright (©) 2011 Emanuele Giaquinta	488	* Copyright (©) 2011 Emanuele Giaquinta
474	* All rights reserved.	489	* All rights reserved.
475	*	490	*
476	* Redistribution and use in source and binary forms, with or without modifica-	491	* Redistribution and use in source and binary forms, with or without modifica-
477	* tion, are permitted provided that the following conditions are met:	492	* tion, are permitted provided that the following conditions are met:
…		…
491	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;	506	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
492	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	507	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
493	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	508	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
494	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED	509	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
495	* OF THE POSSIBILITY OF SUCH DAMAGE.	510	* OF THE POSSIBILITY OF SUCH DAMAGE.
		511	*
		512	* Alternatively, the contents of this file may be used under the terms of
		513	* the GNU General Public License ("GPL") version 2 or any later version,
		514	* in which case the provisions of the GPL are applicable instead of
		515	* the above. If you wish to allow the use of your version of this file
		516	* only under the terms of the GPL and not to allow others to use your
		517	* version of this file under the BSD license, indicate your decision
		518	* by deleting the provisions above and replace them with the notice
		519	* and other provisions required by the GPL. If you do not delete the
		520	* provisions above, a recipient may use your version of this file under
		521	* either the BSD or the GPL.
496	*/	522	*/
497		523
498	#ifndef ECB_H	524	#ifndef ECB_H
499	#define ECB_H	525	#define ECB_H
		526
		527	/* 16 bits major, 16 bits minor */
		528	#define ECB_VERSION 0x00010003
500		529
501	#ifdef _WIN32	530	#ifdef _WIN32
502	typedef signed char int8_t;	531	typedef signed char int8_t;
503	typedef unsigned char uint8_t;	532	typedef unsigned char uint8_t;
504	typedef signed short int16_t;	533	typedef signed short int16_t;
…		…
510	typedef unsigned long long uint64_t;	539	typedef unsigned long long uint64_t;
511	#else /* _MSC_VER || __BORLANDC__ */	540	#else /* _MSC_VER || __BORLANDC__ */
512	typedef signed __int64 int64_t;	541	typedef signed __int64 int64_t;
513	typedef unsigned __int64 uint64_t;	542	typedef unsigned __int64 uint64_t;
514	#endif	543	#endif
		544	#ifdef _WIN64
		545	#define ECB_PTRSIZE 8
		546	typedef uint64_t uintptr_t;
		547	typedef int64_t intptr_t;
		548	#else
		549	#define ECB_PTRSIZE 4
		550	typedef uint32_t uintptr_t;
		551	typedef int32_t intptr_t;
		552	#endif
515	#else	553	#else
516	#include <inttypes.h>	554	#include <inttypes.h>
		555	#if UINTMAX_MAX > 0xffffffffU
		556	#define ECB_PTRSIZE 8
		557	#else
		558	#define ECB_PTRSIZE 4
		559	#endif
		560	#endif
		561
		562	/* work around x32 idiocy by defining proper macros */
		563	#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
		564	#if _ILP32
		565	#define ECB_AMD64_X32 1
		566	#else
		567	#define ECB_AMD64 1
		568	#endif
517	#endif	569	#endif
518		570
519	/* many compilers define _GNUC_ to some versions but then only implement	571	/* many compilers define _GNUC_ to some versions but then only implement
520	* what their idiot authors think are the "more important" extensions,	572	* what their idiot authors think are the "more important" extensions,
521	* causing enormous grief in return for some better fake benchmark numbers.	573	* causing enormous grief in return for some better fake benchmark numbers.
522	* or so.	574	* or so.
523	* we try to detect these and simply assume they are not gcc - if they have	575	* we try to detect these and simply assume they are not gcc - if they have
524	* an issue with that they should have done it right in the first place.	576	* an issue with that they should have done it right in the first place.
525	*/	577	*/
526	#ifndef ECB_GCC_VERSION	578	#ifndef ECB_GCC_VERSION
527	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	579	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
528	#define ECB_GCC_VERSION(major,minor) 0	580	#define ECB_GCC_VERSION(major,minor) 0
529	#else	581	#else
530	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	582	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
531	#endif	583	#endif
532	#endif	584	#endif
533		585
		586	#define ECB_CPP (__cplusplus+0)
		587	#define ECB_CPP11 (__cplusplus >= 201103L)
		588
		589	#if ECB_CPP
		590	#define ECB_C 0
		591	#define ECB_STDC_VERSION 0
		592	#else
		593	#define ECB_C 1
		594	#define ECB_STDC_VERSION __STDC_VERSION__
		595	#endif
		596
		597	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		598	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		599
		600	#if ECB_CPP
		601	#define ECB_EXTERN_C extern "C"
		602	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		603	#define ECB_EXTERN_C_END }
		604	#else
		605	#define ECB_EXTERN_C extern
		606	#define ECB_EXTERN_C_BEG
		607	#define ECB_EXTERN_C_END
		608	#endif
		609
534	/*****************************************************************************/	610	/*****************************************************************************/
535		611
536	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	612	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */	613	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538		614
539	#if ECB_NO_THREADS || ECB_NO_SMP	615	#if ECB_NO_THREADS
		616	#define ECB_NO_SMP 1
		617	#endif
		618
		619	#if ECB_NO_SMP
540	#define ECB_MEMORY_FENCE do { } while (0)	620	#define ECB_MEMORY_FENCE do { } while (0)
541	#endif	621	#endif
542		622
543	#ifndef ECB_MEMORY_FENCE	623	#ifndef ECB_MEMORY_FENCE
544	#if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	624	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545	#if __i386 || __i386__	625	#if __i386 || __i386__
546	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	626	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */	627	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
549	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	629	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	631	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */	632	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	633	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	634	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555	#elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \	635	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556	|| defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)	636	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
557	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	637	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558	#elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \	638	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559	|| defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )	639	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
560	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	640	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		641	#elif __aarch64__
		642	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
561	#elif __sparc || __sparc__	643	#elif (__sparc || __sparc__) && !__sparcv8
562	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")	644	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
563	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	645	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
564	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	646	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		647	#elif defined __s390__ || defined __s390x__
		648	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		649	#elif defined __mips__
		650	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		651	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		652	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		653	#elif defined __alpha__
		654	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		655	#elif defined __hppa__
		656	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		657	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		658	#elif defined __ia64__
		659	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		660	#elif defined __m68k__
		661	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		662	#elif defined __m88k__
		663	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		664	#elif defined __sh__
		665	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
565	#endif	666	#endif
566	#endif	667	#endif
567	#endif	668	#endif
568		669
569	#ifndef ECB_MEMORY_FENCE	670	#ifndef ECB_MEMORY_FENCE
		671	#if ECB_GCC_VERSION(4,7)
		672	/* see comment below (stdatomic.h) about the C11 memory model. */
		673	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		674	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		675	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		676
		677	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		678	* without risking compile time errors with other compilers. We *could*
		679	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		680	* around this shit time and again.
		681	* #elif defined __clang && __has_feature (cxx_atomic)
		682	* // see comment below (stdatomic.h) about the C11 memory model.
		683	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		684	* #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		685	* #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
		686	*/
		687
570	#if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__)	688	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
571	#define ECB_MEMORY_FENCE __sync_synchronize ()	689	#define ECB_MEMORY_FENCE __sync_synchronize ()
572	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */	690	#elif _MSC_VER >= 1500 /* VC++ 2008 */
573	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */	691	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		692	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		693	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		694	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		695	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
574	#elif _MSC_VER >= 1400 /* VC++ 2005 */	696	#elif _MSC_VER >= 1400 /* VC++ 2005 */
575	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	697	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
576	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	698	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
577	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	699	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
578	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	700	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
579	#elif defined(_WIN32)	701	#elif defined _WIN32
580	#include <WinNT.h>	702	#include <WinNT.h>
581	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */	703	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
582	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	704	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
583	#include <mbarrier.h>	705	#include <mbarrier.h>
584	#define ECB_MEMORY_FENCE __machine_rw_barrier ()	706	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
585	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()	707	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
586	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()	708	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		709	#elif __xlC__
		710	#define ECB_MEMORY_FENCE __sync ()
		711	#endif
		712	#endif
		713
		714	#ifndef ECB_MEMORY_FENCE
		715	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		716	/* we assume that these memory fences work on all variables/all memory accesses, */
		717	/* not just C11 atomics and atomic accesses */
		718	#include <stdatomic.h>
		719	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		720	/* any fence other than seq_cst, which isn't very efficient for us. */
		721	/* Why that is, we don't know - either the C11 memory model is quite useless */
		722	/* for most usages, or gcc and clang have a bug */
		723	/* I *currently* lean towards the latter, and inefficiently implement */
		724	/* all three of ecb's fences as a seq_cst fence */
		725	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		726	/* for all __atomic_thread_fence's except seq_cst */
		727	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
587	#endif	728	#endif
588	#endif	729	#endif
589		730
590	#ifndef ECB_MEMORY_FENCE	731	#ifndef ECB_MEMORY_FENCE
591	#if !ECB_AVOID_PTHREADS	732	#if !ECB_AVOID_PTHREADS
…		…
603	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;	744	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
604	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)	745	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
605	#endif	746	#endif
606	#endif	747	#endif
607		748
608	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)	749	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
609	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE	750	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
610	#endif	751	#endif
611		752
612	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)	753	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
613	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	754	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
614	#endif	755	#endif
615		756
616	/*****************************************************************************/	757	/*****************************************************************************/
617
618	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
619		758
620	#if __cplusplus	759	#if __cplusplus
621	#define ecb_inline static inline	760	#define ecb_inline static inline
622	#elif ECB_GCC_VERSION(2,5)	761	#elif ECB_GCC_VERSION(2,5)
623	#define ecb_inline static __inline__	762	#define ecb_inline static __inline__
…		…
649	#define ecb_is_constant(expr) __builtin_constant_p (expr)	788	#define ecb_is_constant(expr) __builtin_constant_p (expr)
650	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	789	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
651	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	790	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
652	#else	791	#else
653	#define ecb_attribute(attrlist)	792	#define ecb_attribute(attrlist)
		793
		794	/* possible C11 impl for integral types
		795	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		796	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		797
654	#define ecb_is_constant(expr) 0	798	#define ecb_is_constant(expr) 0
655	#define ecb_expect(expr,value) (expr)	799	#define ecb_expect(expr,value) (expr)
656	#define ecb_prefetch(addr,rw,locality)	800	#define ecb_prefetch(addr,rw,locality)
657	#endif	801	#endif
658		802
…		…
662	#elif ECB_GCC_VERSION(3,0)	806	#elif ECB_GCC_VERSION(3,0)
663	#define ecb_decltype(x) __typeof(x)	807	#define ecb_decltype(x) __typeof(x)
664	#endif	808	#endif
665		809
666	#define ecb_noinline ecb_attribute ((__noinline__))	810	#define ecb_noinline ecb_attribute ((__noinline__))
667	#define ecb_noreturn ecb_attribute ((__noreturn__))
668	#define ecb_unused ecb_attribute ((__unused__))	811	#define ecb_unused ecb_attribute ((__unused__))
669	#define ecb_const ecb_attribute ((__const__))	812	#define ecb_const ecb_attribute ((__const__))
670	#define ecb_pure ecb_attribute ((__pure__))	813	#define ecb_pure ecb_attribute ((__pure__))
		814
		815	#if ECB_C11
		816	#define ecb_noreturn _Noreturn
		817	#else
		818	#define ecb_noreturn ecb_attribute ((__noreturn__))
		819	#endif
671		820
672	#if ECB_GCC_VERSION(4,3)	821	#if ECB_GCC_VERSION(4,3)
673	#define ecb_artificial ecb_attribute ((__artificial__))	822	#define ecb_artificial ecb_attribute ((__artificial__))
674	#define ecb_hot ecb_attribute ((__hot__))	823	#define ecb_hot ecb_attribute ((__hot__))
675	#define ecb_cold ecb_attribute ((__cold__))	824	#define ecb_cold ecb_attribute ((__cold__))
…		…
766		915
767	return r + ecb_ld32 (x);	916	return r + ecb_ld32 (x);
768	}	917	}
769	#endif	918	#endif
770		919
		920	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		921	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		922	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		923	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		924
771	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	925	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
772	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	926	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
773	{	927	{
774	return ( (x * 0x0802U & 0x22110U)	928	return ( (x * 0x0802U & 0x22110U)
775	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	929	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
854		1008
855	#if ECB_GCC_VERSION(4,5)	1009	#if ECB_GCC_VERSION(4,5)
856	#define ecb_unreachable() __builtin_unreachable ()	1010	#define ecb_unreachable() __builtin_unreachable ()
857	#else	1011	#else
858	/* this seems to work fine, but gcc always emits a warning for it :/ */	1012	/* this seems to work fine, but gcc always emits a warning for it :/ */
859	ecb_function_ void ecb_unreachable (void) ecb_noreturn;	1013	ecb_inline void ecb_unreachable (void) ecb_noreturn;
860	ecb_function_ void ecb_unreachable (void) { }	1014	ecb_inline void ecb_unreachable (void) { }
861	#endif	1015	#endif
862		1016
863	/* try to tell the compiler that some condition is definitely true */	1017	/* try to tell the compiler that some condition is definitely true */
864	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	1018	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
865		1019
866	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;	1020	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
867	ecb_function_ unsigned char	1021	ecb_inline unsigned char
868	ecb_byteorder_helper (void)	1022	ecb_byteorder_helper (void)
869	{	1023	{
870	const uint32_t u = 0x11223344;	1024	/* the union code still generates code under pressure in gcc, */
871	return *(unsigned char *)&u;	1025	/* but less than using pointers, and always seems to */
		1026	/* successfully return a constant. */
		1027	/* the reason why we have this horrible preprocessor mess */
		1028	/* is to avoid it in all cases, at least on common architectures */
		1029	/* or when using a recent enough gcc version (>= 4.6) */
		1030	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		1031	return 0x44;
		1032	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		1033	return 0x44;
		1034	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		1035	return 0x11;
		1036	#else
		1037	union
		1038	{
		1039	uint32_t i;
		1040	uint8_t c;
		1041	} u = { 0x11223344 };
		1042	return u.c;
		1043	#endif
872	}	1044	}
873		1045
874	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;	1046	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
875	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1047	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
876	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;	1048	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
877	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1049	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
878		1050
879	#if ECB_GCC_VERSION(3,0) || ECB_C99	1051	#if ECB_GCC_VERSION(3,0) || ECB_C99
880	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1052	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
881	#else	1053	#else
882	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1054	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
…		…
907	}	1079	}
908	#else	1080	#else
909	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1081	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
910	#endif	1082	#endif
911		1083
		1084	/*******************************************************************************/
		1085	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1086
		1087	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1088	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1089	#if 0 \
		1090	|| __i386 || __i386__ \
		1091	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1092	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1093	|| defined __s390__ || defined __s390x__ \
		1094	|| defined __mips__ \
		1095	|| defined __alpha__ \
		1096	|| defined __hppa__ \
		1097	|| defined __ia64__ \
		1098	|| defined __m68k__ \
		1099	|| defined __m88k__ \
		1100	|| defined __sh__ \
		1101	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
		1102	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1103	|| defined __aarch64__
		1104	#define ECB_STDFP 1
		1105	#include <string.h> /* for memcpy */
		1106	#else
		1107	#define ECB_STDFP 0
		1108	#endif
		1109
		1110	#ifndef ECB_NO_LIBM
		1111
		1112	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1113
		1114	/* only the oldest of old doesn't have this one. solaris. */
		1115	#ifdef INFINITY
		1116	#define ECB_INFINITY INFINITY
		1117	#else
		1118	#define ECB_INFINITY HUGE_VAL
		1119	#endif
		1120
		1121	#ifdef NAN
		1122	#define ECB_NAN NAN
		1123	#else
		1124	#define ECB_NAN ECB_INFINITY
		1125	#endif
		1126
		1127	/* converts an ieee half/binary16 to a float */
		1128	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
		1129	ecb_function_ float
		1130	ecb_binary16_to_float (uint16_t x)
		1131	{
		1132	int e = (x >> 10) & 0x1f;
		1133	int m = x & 0x3ff;
		1134	float r;
		1135
		1136	if (!e ) r = ldexpf (m , -24);
		1137	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
		1138	else if (m ) r = ECB_NAN;
		1139	else r = ECB_INFINITY;
		1140
		1141	return x & 0x8000 ? -r : r;
		1142	}
		1143
		1144	/* convert a float to ieee single/binary32 */
		1145	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1146	ecb_function_ uint32_t
		1147	ecb_float_to_binary32 (float x)
		1148	{
		1149	uint32_t r;
		1150
		1151	#if ECB_STDFP
		1152	memcpy (&r, &x, 4);
		1153	#else
		1154	/* slow emulation, works for anything but -0 */
		1155	uint32_t m;
		1156	int e;
		1157
		1158	if (x == 0e0f ) return 0x00000000U;
		1159	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1160	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1161	if (x != x ) return 0x7fbfffffU;
		1162
		1163	m = frexpf (x, &e) * 0x1000000U;
		1164
		1165	r = m & 0x80000000U;
		1166
		1167	if (r)
		1168	m = -m;
		1169
		1170	if (e <= -126)
		1171	{
		1172	m &= 0xffffffU;
		1173	m >>= (-125 - e);
		1174	e = -126;
		1175	}
		1176
		1177	r |= (e + 126) << 23;
		1178	r |= m & 0x7fffffU;
		1179	#endif
		1180
		1181	return r;
		1182	}
		1183
		1184	/* converts an ieee single/binary32 to a float */
		1185	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1186	ecb_function_ float
		1187	ecb_binary32_to_float (uint32_t x)
		1188	{
		1189	float r;
		1190
		1191	#if ECB_STDFP
		1192	memcpy (&r, &x, 4);
		1193	#else
		1194	/* emulation, only works for normals and subnormals and +0 */
		1195	int neg = x >> 31;
		1196	int e = (x >> 23) & 0xffU;
		1197
		1198	x &= 0x7fffffU;
		1199
		1200	if (e)
		1201	x |= 0x800000U;
		1202	else
		1203	e = 1;
		1204
		1205	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1206	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1207
		1208	r = neg ? -r : r;
		1209	#endif
		1210
		1211	return r;
		1212	}
		1213
		1214	/* convert a double to ieee double/binary64 */
		1215	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1216	ecb_function_ uint64_t
		1217	ecb_double_to_binary64 (double x)
		1218	{
		1219	uint64_t r;
		1220
		1221	#if ECB_STDFP
		1222	memcpy (&r, &x, 8);
		1223	#else
		1224	/* slow emulation, works for anything but -0 */
		1225	uint64_t m;
		1226	int e;
		1227
		1228	if (x == 0e0 ) return 0x0000000000000000U;
		1229	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1230	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1231	if (x != x ) return 0X7ff7ffffffffffffU;
		1232
		1233	m = frexp (x, &e) * 0x20000000000000U;
		1234
		1235	r = m & 0x8000000000000000;;
		1236
		1237	if (r)
		1238	m = -m;
		1239
		1240	if (e <= -1022)
		1241	{
		1242	m &= 0x1fffffffffffffU;
		1243	m >>= (-1021 - e);
		1244	e = -1022;
		1245	}
		1246
		1247	r |= ((uint64_t)(e + 1022)) << 52;
		1248	r |= m & 0xfffffffffffffU;
		1249	#endif
		1250
		1251	return r;
		1252	}
		1253
		1254	/* converts an ieee double/binary64 to a double */
		1255	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1256	ecb_function_ double
		1257	ecb_binary64_to_double (uint64_t x)
		1258	{
		1259	double r;
		1260
		1261	#if ECB_STDFP
		1262	memcpy (&r, &x, 8);
		1263	#else
		1264	/* emulation, only works for normals and subnormals and +0 */
		1265	int neg = x >> 63;
		1266	int e = (x >> 52) & 0x7ffU;
		1267
		1268	x &= 0xfffffffffffffU;
		1269
		1270	if (e)
		1271	x |= 0x10000000000000U;
		1272	else
		1273	e = 1;
		1274
		1275	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1276	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1277
		1278	r = neg ? -r : r;
		1279	#endif
		1280
		1281	return r;
		1282	}
		1283
		1284	#endif
		1285
912	#endif	1286	#endif
913		1287
914	/* ECB.H END */	1288	/* ECB.H END */
915		1289
916	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1290	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1082	{	1456	{
1083	write (STDERR_FILENO, msg, strlen (msg));	1457	write (STDERR_FILENO, msg, strlen (msg));
1084	}	1458	}
1085	#endif	1459	#endif
1086		1460
1087	static void (*syserr_cb)(const char *msg);	1461	static void (*syserr_cb)(const char *msg) EV_THROW;
1088		1462
1089	void ecb_cold	1463	void ecb_cold
1090	ev_set_syserr_cb (void (*cb)(const char *msg))	1464	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1091	{	1465	{
1092	syserr_cb = cb;	1466	syserr_cb = cb;
1093	}	1467	}
1094		1468
1095	static void noinline ecb_cold	1469	static void noinline ecb_cold
…		…
1113	abort ();	1487	abort ();
1114	}	1488	}
1115	}	1489	}
1116		1490
1117	static void *	1491	static void *
1118	ev_realloc_emul (void *ptr, long size)	1492	ev_realloc_emul (void *ptr, long size) EV_THROW
1119	{	1493	{
1120	#if __GLIBC__
1121	return realloc (ptr, size);
1122	#else
1123	/* some systems, notably openbsd and darwin, fail to properly	1494	/* some systems, notably openbsd and darwin, fail to properly
1124	* implement realloc (x, 0) (as required by both ansi c-89 and	1495	* implement realloc (x, 0) (as required by both ansi c-89 and
1125	* the single unix specification, so work around them here.	1496	* the single unix specification, so work around them here.
		1497	* recently, also (at least) fedora and debian started breaking it,
		1498	* despite documenting it otherwise.
1126	*/	1499	*/
1127		1500
1128	if (size)	1501	if (size)
1129	return realloc (ptr, size);	1502	return realloc (ptr, size);
1130		1503
1131	free (ptr);	1504	free (ptr);
1132	return 0;	1505	return 0;
1133	#endif
1134	}	1506	}
1135		1507
1136	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1508	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1137		1509
1138	void ecb_cold	1510	void ecb_cold
1139	ev_set_allocator (void *(*cb)(void *ptr, long size))	1511	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1140	{	1512	{
1141	alloc = cb;	1513	alloc = cb;
1142	}	1514	}
1143		1515
1144	inline_speed void *	1516	inline_speed void *
…		…
1261		1633
1262	/*****************************************************************************/	1634	/*****************************************************************************/
1263		1635
1264	#ifndef EV_HAVE_EV_TIME	1636	#ifndef EV_HAVE_EV_TIME
1265	ev_tstamp	1637	ev_tstamp
1266	ev_time (void)	1638	ev_time (void) EV_THROW
1267	{	1639	{
1268	#if EV_USE_REALTIME	1640	#if EV_USE_REALTIME
1269	if (expect_true (have_realtime))	1641	if (expect_true (have_realtime))
1270	{	1642	{
1271	struct timespec ts;	1643	struct timespec ts;
…		…
1295	return ev_time ();	1667	return ev_time ();
1296	}	1668	}
1297		1669
1298	#if EV_MULTIPLICITY	1670	#if EV_MULTIPLICITY
1299	ev_tstamp	1671	ev_tstamp
1300	ev_now (EV_P)	1672	ev_now (EV_P) EV_THROW
1301	{	1673	{
1302	return ev_rt_now;	1674	return ev_rt_now;
1303	}	1675	}
1304	#endif	1676	#endif
1305		1677
1306	void	1678	void
1307	ev_sleep (ev_tstamp delay)	1679	ev_sleep (ev_tstamp delay) EV_THROW
1308	{	1680	{
1309	if (delay > 0.)	1681	if (delay > 0.)
1310	{	1682	{
1311	#if EV_USE_NANOSLEEP	1683	#if EV_USE_NANOSLEEP
1312	struct timespec ts;	1684	struct timespec ts;
1313		1685
1314	EV_TS_SET (ts, delay);	1686	EV_TS_SET (ts, delay);
1315	nanosleep (&ts, 0);	1687	nanosleep (&ts, 0);
1316	#elif defined(_WIN32)	1688	#elif defined _WIN32
1317	Sleep ((unsigned long)(delay * 1e3));	1689	Sleep ((unsigned long)(delay * 1e3));
1318	#else	1690	#else
1319	struct timeval tv;	1691	struct timeval tv;
1320		1692
1321	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1693	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1393	pendingcb (EV_P_ ev_prepare *w, int revents)	1765	pendingcb (EV_P_ ev_prepare *w, int revents)
1394	{	1766	{
1395	}	1767	}
1396		1768
1397	void noinline	1769	void noinline
1398	ev_feed_event (EV_P_ void *w, int revents)	1770	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1399	{	1771	{
1400	W w_ = (W)w;	1772	W w_ = (W)w;
1401	int pri = ABSPRI (w_);	1773	int pri = ABSPRI (w_);
1402		1774
1403	if (expect_false (w_->pending))	1775	if (expect_false (w_->pending))
…		…
1407	w_->pending = ++pendingcnt [pri];	1779	w_->pending = ++pendingcnt [pri];
1408	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1780	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1409	pendings [pri][w_->pending - 1].w = w_;	1781	pendings [pri][w_->pending - 1].w = w_;
1410	pendings [pri][w_->pending - 1].events = revents;	1782	pendings [pri][w_->pending - 1].events = revents;
1411	}	1783	}
		1784
		1785	pendingpri = NUMPRI - 1;
1412	}	1786	}
1413		1787
1414	inline_speed void	1788	inline_speed void
1415	feed_reverse (EV_P_ W w)	1789	feed_reverse (EV_P_ W w)
1416	{	1790	{
…		…
1462	if (expect_true (!anfd->reify))	1836	if (expect_true (!anfd->reify))
1463	fd_event_nocheck (EV_A_ fd, revents);	1837	fd_event_nocheck (EV_A_ fd, revents);
1464	}	1838	}
1465		1839
1466	void	1840	void
1467	ev_feed_fd_event (EV_P_ int fd, int revents)	1841	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1468	{	1842	{
1469	if (fd >= 0 && fd < anfdmax)	1843	if (fd >= 0 && fd < anfdmax)
1470	fd_event_nocheck (EV_A_ fd, revents);	1844	fd_event_nocheck (EV_A_ fd, revents);
1471	}	1845	}
1472		1846
…		…
1791	static void noinline ecb_cold	2165	static void noinline ecb_cold
1792	evpipe_init (EV_P)	2166	evpipe_init (EV_P)
1793	{	2167	{
1794	if (!ev_is_active (&pipe_w))	2168	if (!ev_is_active (&pipe_w))
1795	{	2169	{
		2170	int fds [2];
		2171
1796	# if EV_USE_EVENTFD	2172	# if EV_USE_EVENTFD
		2173	fds [0] = -1;
1797	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2174	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1798	if (evfd < 0 && errno == EINVAL)	2175	if (fds [1] < 0 && errno == EINVAL)
1799	evfd = eventfd (0, 0);	2176	fds [1] = eventfd (0, 0);
1800		2177
1801	if (evfd >= 0)	2178	if (fds [1] < 0)
		2179	# endif
1802	{	2180	{
		2181	while (pipe (fds))
		2182	ev_syserr ("(libev) error creating signal/async pipe");
		2183
		2184	fd_intern (fds [0]);
		2185	}
		2186
1803	evpipe [0] = -1;	2187	evpipe [0] = fds [0];
1804	fd_intern (evfd); /* doing it twice doesn't hurt */	2188
1805	ev_io_set (&pipe_w, evfd, EV_READ);	2189	if (evpipe [1] < 0)
		2190	evpipe [1] = fds [1]; /* first call, set write fd */
		2191	else
		2192	{
		2193	/* on subsequent calls, do not change evpipe [1] */
		2194	/* so that evpipe_write can always rely on its value. */
		2195	/* this branch does not do anything sensible on windows, */
		2196	/* so must not be executed on windows */
		2197
		2198	dup2 (fds [1], evpipe [1]);
		2199	close (fds [1]);
		2200	}
		2201
		2202	fd_intern (evpipe [1]);
		2203
		2204	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2205	ev_io_start (EV_A_ &pipe_w);
		2206	ev_unref (EV_A); /* watcher should not keep loop alive */
		2207	}
		2208	}
		2209
		2210	inline_speed void
		2211	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2212	{
		2213	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2214
		2215	if (expect_true (*flag))
		2216	return;
		2217
		2218	*flag = 1;
		2219	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2220
		2221	pipe_write_skipped = 1;
		2222
		2223	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2224
		2225	if (pipe_write_wanted)
		2226	{
		2227	int old_errno;
		2228
		2229	pipe_write_skipped = 0;
		2230	ECB_MEMORY_FENCE_RELEASE;
		2231
		2232	old_errno = errno; /* save errno because write will clobber it */
		2233
		2234	#if EV_USE_EVENTFD
		2235	if (evpipe [0] < 0)
		2236	{
		2237	uint64_t counter = 1;
		2238	write (evpipe [1], &counter, sizeof (uint64_t));
1806	}	2239	}
1807	else	2240	else
1808	# endif	2241	#endif
1809	{	2242	{
1810	while (pipe (evpipe))	2243	#ifdef _WIN32
1811	ev_syserr ("(libev) error creating signal/async pipe");	2244	WSABUF buf;
1812		2245	DWORD sent;
1813	fd_intern (evpipe [0]);	2246	buf.buf = &buf;
1814	fd_intern (evpipe [1]);	2247	buf.len = 1;
1815	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2248	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1816	}	2249	#else
1817
1818	ev_io_start (EV_A_ &pipe_w);
1819	ev_unref (EV_A); /* watcher should not keep loop alive */
1820	}
1821	}
1822
1823	inline_speed void
1824	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1825	{
1826	if (expect_true (*flag))
1827	return;
1828
1829	*flag = 1;
1830
1831	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1832
1833	pipe_write_skipped = 1;
1834
1835	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1836
1837	if (pipe_write_wanted)
1838	{
1839	int old_errno;
1840
1841	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1842
1843	old_errno = errno; /* save errno because write will clobber it */
1844
1845	#if EV_USE_EVENTFD
1846	if (evfd >= 0)
1847	{
1848	uint64_t counter = 1;
1849	write (evfd, &counter, sizeof (uint64_t));
1850	}
1851	else
1852	#endif
1853	{
1854	/* win32 people keep sending patches that change this write() to send() */
1855	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1856	/* so when you think this write should be a send instead, please find out */
1857	/* where your send() is from - it's definitely not the microsoft send, and */
1858	/* tell me. thank you. */
1859	write (evpipe [1], &(evpipe [1]), 1);	2250	write (evpipe [1], &(evpipe [1]), 1);
		2251	#endif
1860	}	2252	}
1861		2253
1862	errno = old_errno;	2254	errno = old_errno;
1863	}	2255	}
1864	}	2256	}
…		…
1871	int i;	2263	int i;
1872		2264
1873	if (revents & EV_READ)	2265	if (revents & EV_READ)
1874	{	2266	{
1875	#if EV_USE_EVENTFD	2267	#if EV_USE_EVENTFD
1876	if (evfd >= 0)	2268	if (evpipe [0] < 0)
1877	{	2269	{
1878	uint64_t counter;	2270	uint64_t counter;
1879	read (evfd, &counter, sizeof (uint64_t));	2271	read (evpipe [1], &counter, sizeof (uint64_t));
1880	}	2272	}
1881	else	2273	else
1882	#endif	2274	#endif
1883	{	2275	{
1884	char dummy;	2276	char dummy[4];
1885	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2277	#ifdef _WIN32
		2278	WSABUF buf;
		2279	DWORD recvd;
		2280	DWORD flags = 0;
		2281	buf.buf = dummy;
		2282	buf.len = sizeof (dummy);
		2283	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2284	#else
1886	read (evpipe [0], &dummy, 1);	2285	read (evpipe [0], &dummy, sizeof (dummy));
		2286	#endif
1887	}	2287	}
1888	}	2288	}
1889		2289
1890	pipe_write_skipped = 0;	2290	pipe_write_skipped = 0;
		2291
		2292	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1891		2293
1892	#if EV_SIGNAL_ENABLE	2294	#if EV_SIGNAL_ENABLE
1893	if (sig_pending)	2295	if (sig_pending)
1894	{	2296	{
1895	sig_pending = 0;	2297	sig_pending = 0;
		2298
		2299	ECB_MEMORY_FENCE;
1896		2300
1897	for (i = EV_NSIG - 1; i--; )	2301	for (i = EV_NSIG - 1; i--; )
1898	if (expect_false (signals [i].pending))	2302	if (expect_false (signals [i].pending))
1899	ev_feed_signal_event (EV_A_ i + 1);	2303	ev_feed_signal_event (EV_A_ i + 1);
1900	}	2304	}
…		…
1902		2306
1903	#if EV_ASYNC_ENABLE	2307	#if EV_ASYNC_ENABLE
1904	if (async_pending)	2308	if (async_pending)
1905	{	2309	{
1906	async_pending = 0;	2310	async_pending = 0;
		2311
		2312	ECB_MEMORY_FENCE;
1907		2313
1908	for (i = asynccnt; i--; )	2314	for (i = asynccnt; i--; )
1909	if (asyncs [i]->sent)	2315	if (asyncs [i]->sent)
1910	{	2316	{
1911	asyncs [i]->sent = 0;	2317	asyncs [i]->sent = 0;
		2318	ECB_MEMORY_FENCE_RELEASE;
1912	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2319	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1913	}	2320	}
1914	}	2321	}
1915	#endif	2322	#endif
1916	}	2323	}
1917		2324
1918	/*****************************************************************************/	2325	/*****************************************************************************/
1919		2326
1920	void	2327	void
1921	ev_feed_signal (int signum)	2328	ev_feed_signal (int signum) EV_THROW
1922	{	2329	{
1923	#if EV_MULTIPLICITY	2330	#if EV_MULTIPLICITY
		2331	EV_P;
		2332	ECB_MEMORY_FENCE_ACQUIRE;
1924	EV_P = signals [signum - 1].loop;	2333	EV_A = signals [signum - 1].loop;
1925		2334
1926	if (!EV_A)	2335	if (!EV_A)
1927	return;	2336	return;
1928	#endif	2337	#endif
1929		2338
1930	if (!ev_active (&pipe_w))
1931	return;
1932
1933	signals [signum - 1].pending = 1;	2339	signals [signum - 1].pending = 1;
1934	evpipe_write (EV_A_ &sig_pending);	2340	evpipe_write (EV_A_ &sig_pending);
1935	}	2341	}
1936		2342
1937	static void	2343	static void
…		…
1943		2349
1944	ev_feed_signal (signum);	2350	ev_feed_signal (signum);
1945	}	2351	}
1946		2352
1947	void noinline	2353	void noinline
1948	ev_feed_signal_event (EV_P_ int signum)	2354	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1949	{	2355	{
1950	WL w;	2356	WL w;
1951		2357
1952	if (expect_false (signum <= 0 || signum > EV_NSIG))	2358	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1953	return;	2359	return;
1954		2360
1955	--signum;	2361	--signum;
1956		2362
1957	#if EV_MULTIPLICITY	2363	#if EV_MULTIPLICITY
…		…
1961	if (expect_false (signals [signum].loop != EV_A))	2367	if (expect_false (signals [signum].loop != EV_A))
1962	return;	2368	return;
1963	#endif	2369	#endif
1964		2370
1965	signals [signum].pending = 0;	2371	signals [signum].pending = 0;
		2372	ECB_MEMORY_FENCE_RELEASE;
1966		2373
1967	for (w = signals [signum].head; w; w = w->next)	2374	for (w = signals [signum].head; w; w = w->next)
1968	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2375	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1969	}	2376	}
1970		2377
…		…
2069	#if EV_USE_SELECT	2476	#if EV_USE_SELECT
2070	# include "ev_select.c"	2477	# include "ev_select.c"
2071	#endif	2478	#endif
2072		2479
2073	int ecb_cold	2480	int ecb_cold
2074	ev_version_major (void)	2481	ev_version_major (void) EV_THROW
2075	{	2482	{
2076	return EV_VERSION_MAJOR;	2483	return EV_VERSION_MAJOR;
2077	}	2484	}
2078		2485
2079	int ecb_cold	2486	int ecb_cold
2080	ev_version_minor (void)	2487	ev_version_minor (void) EV_THROW
2081	{	2488	{
2082	return EV_VERSION_MINOR;	2489	return EV_VERSION_MINOR;
2083	}	2490	}
2084		2491
2085	/* return true if we are running with elevated privileges and should ignore env variables */	2492	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2093	|| getgid () != getegid ();	2500	|| getgid () != getegid ();
2094	#endif	2501	#endif
2095	}	2502	}
2096		2503
2097	unsigned int ecb_cold	2504	unsigned int ecb_cold
2098	ev_supported_backends (void)	2505	ev_supported_backends (void) EV_THROW
2099	{	2506	{
2100	unsigned int flags = 0;	2507	unsigned int flags = 0;
2101		2508
2102	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2509	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2103	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2510	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2107		2514
2108	return flags;	2515	return flags;
2109	}	2516	}
2110		2517
2111	unsigned int ecb_cold	2518	unsigned int ecb_cold
2112	ev_recommended_backends (void)	2519	ev_recommended_backends (void) EV_THROW
2113	{	2520	{
2114	unsigned int flags = ev_supported_backends ();	2521	unsigned int flags = ev_supported_backends ();
2115		2522
2116	#ifndef __NetBSD__	2523	#ifndef __NetBSD__
2117	/* kqueue is borked on everything but netbsd apparently */	2524	/* kqueue is borked on everything but netbsd apparently */
…		…
2129		2536
2130	return flags;	2537	return flags;
2131	}	2538	}
2132		2539
2133	unsigned int ecb_cold	2540	unsigned int ecb_cold
2134	ev_embeddable_backends (void)	2541	ev_embeddable_backends (void) EV_THROW
2135	{	2542	{
2136	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2543	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2137		2544
2138	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2545	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2139	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2546	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2141		2548
2142	return flags;	2549	return flags;
2143	}	2550	}
2144		2551
2145	unsigned int	2552	unsigned int
2146	ev_backend (EV_P)	2553	ev_backend (EV_P) EV_THROW
2147	{	2554	{
2148	return backend;	2555	return backend;
2149	}	2556	}
2150		2557
2151	#if EV_FEATURE_API	2558	#if EV_FEATURE_API
2152	unsigned int	2559	unsigned int
2153	ev_iteration (EV_P)	2560	ev_iteration (EV_P) EV_THROW
2154	{	2561	{
2155	return loop_count;	2562	return loop_count;
2156	}	2563	}
2157		2564
2158	unsigned int	2565	unsigned int
2159	ev_depth (EV_P)	2566	ev_depth (EV_P) EV_THROW
2160	{	2567	{
2161	return loop_depth;	2568	return loop_depth;
2162	}	2569	}
2163		2570
2164	void	2571	void
2165	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2572	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2166	{	2573	{
2167	io_blocktime = interval;	2574	io_blocktime = interval;
2168	}	2575	}
2169		2576
2170	void	2577	void
2171	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2578	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2172	{	2579	{
2173	timeout_blocktime = interval;	2580	timeout_blocktime = interval;
2174	}	2581	}
2175		2582
2176	void	2583	void
2177	ev_set_userdata (EV_P_ void *data)	2584	ev_set_userdata (EV_P_ void *data) EV_THROW
2178	{	2585	{
2179	userdata = data;	2586	userdata = data;
2180	}	2587	}
2181		2588
2182	void *	2589	void *
2183	ev_userdata (EV_P)	2590	ev_userdata (EV_P) EV_THROW
2184	{	2591	{
2185	return userdata;	2592	return userdata;
2186	}	2593	}
2187		2594
2188	void	2595	void
2189	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2596	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2190	{	2597	{
2191	invoke_cb = invoke_pending_cb;	2598	invoke_cb = invoke_pending_cb;
2192	}	2599	}
2193		2600
2194	void	2601	void
2195	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2602	ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2196	{	2603	{
2197	release_cb = release;	2604	release_cb = release;
2198	acquire_cb = acquire;	2605	acquire_cb = acquire;
2199	}	2606	}
2200	#endif	2607	#endif
2201		2608
2202	/* initialise a loop structure, must be zero-initialised */	2609	/* initialise a loop structure, must be zero-initialised */
2203	static void noinline ecb_cold	2610	static void noinline ecb_cold
2204	loop_init (EV_P_ unsigned int flags)	2611	loop_init (EV_P_ unsigned int flags) EV_THROW
2205	{	2612	{
2206	if (!backend)	2613	if (!backend)
2207	{	2614	{
2208	origflags = flags;	2615	origflags = flags;
2209		2616
…		…
2254	#if EV_ASYNC_ENABLE	2661	#if EV_ASYNC_ENABLE
2255	async_pending = 0;	2662	async_pending = 0;
2256	#endif	2663	#endif
2257	pipe_write_skipped = 0;	2664	pipe_write_skipped = 0;
2258	pipe_write_wanted = 0;	2665	pipe_write_wanted = 0;
		2666	evpipe [0] = -1;
		2667	evpipe [1] = -1;
2259	#if EV_USE_INOTIFY	2668	#if EV_USE_INOTIFY
2260	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2669	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2261	#endif	2670	#endif
2262	#if EV_USE_SIGNALFD	2671	#if EV_USE_SIGNALFD
2263	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2672	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2314	EV_INVOKE_PENDING;	2723	EV_INVOKE_PENDING;
2315	}	2724	}
2316	#endif	2725	#endif
2317		2726
2318	#if EV_CHILD_ENABLE	2727	#if EV_CHILD_ENABLE
2319	if (ev_is_active (&childev))	2728	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2320	{	2729	{
2321	ev_ref (EV_A); /* child watcher */	2730	ev_ref (EV_A); /* child watcher */
2322	ev_signal_stop (EV_A_ &childev);	2731	ev_signal_stop (EV_A_ &childev);
2323	}	2732	}
2324	#endif	2733	#endif
…		…
2326	if (ev_is_active (&pipe_w))	2735	if (ev_is_active (&pipe_w))
2327	{	2736	{
2328	/*ev_ref (EV_A);*/	2737	/*ev_ref (EV_A);*/
2329	/*ev_io_stop (EV_A_ &pipe_w);*/	2738	/*ev_io_stop (EV_A_ &pipe_w);*/
2330		2739
2331	#if EV_USE_EVENTFD
2332	if (evfd >= 0)
2333	close (evfd);
2334	#endif
2335
2336	if (evpipe [0] >= 0)
2337	{
2338	EV_WIN32_CLOSE_FD (evpipe [0]);	2740	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2339	EV_WIN32_CLOSE_FD (evpipe [1]);	2741	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2340	}
2341	}	2742	}
2342		2743
2343	#if EV_USE_SIGNALFD	2744	#if EV_USE_SIGNALFD
2344	if (ev_is_active (&sigfd_w))	2745	if (ev_is_active (&sigfd_w))
2345	close (sigfd);	2746	close (sigfd);
…		…
2431	#endif	2832	#endif
2432	#if EV_USE_INOTIFY	2833	#if EV_USE_INOTIFY
2433	infy_fork (EV_A);	2834	infy_fork (EV_A);
2434	#endif	2835	#endif
2435		2836
		2837	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2436	if (ev_is_active (&pipe_w))	2838	if (ev_is_active (&pipe_w))
2437	{	2839	{
2438	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2840	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2439		2841
2440	ev_ref (EV_A);	2842	ev_ref (EV_A);
2441	ev_io_stop (EV_A_ &pipe_w);	2843	ev_io_stop (EV_A_ &pipe_w);
2442		2844
2443	#if EV_USE_EVENTFD
2444	if (evfd >= 0)
2445	close (evfd);
2446	#endif
2447
2448	if (evpipe [0] >= 0)	2845	if (evpipe [0] >= 0)
2449	{
2450	EV_WIN32_CLOSE_FD (evpipe [0]);	2846	EV_WIN32_CLOSE_FD (evpipe [0]);
2451	EV_WIN32_CLOSE_FD (evpipe [1]);
2452	}
2453		2847
2454	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2455	evpipe_init (EV_A);	2848	evpipe_init (EV_A);
2456	/* now iterate over everything, in case we missed something */	2849	/* iterate over everything, in case we missed something before */
2457	pipecb (EV_A_ &pipe_w, EV_READ);	2850	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2458	#endif
2459	}	2851	}
		2852	#endif
2460		2853
2461	postfork = 0;	2854	postfork = 0;
2462	}	2855	}
2463		2856
2464	#if EV_MULTIPLICITY	2857	#if EV_MULTIPLICITY
2465		2858
2466	struct ev_loop * ecb_cold	2859	struct ev_loop * ecb_cold
2467	ev_loop_new (unsigned int flags)	2860	ev_loop_new (unsigned int flags) EV_THROW
2468	{	2861	{
2469	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2862	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2470		2863
2471	memset (EV_A, 0, sizeof (struct ev_loop));	2864	memset (EV_A, 0, sizeof (struct ev_loop));
2472	loop_init (EV_A_ flags);	2865	loop_init (EV_A_ flags);
…		…
2516	}	2909	}
2517	#endif	2910	#endif
2518		2911
2519	#if EV_FEATURE_API	2912	#if EV_FEATURE_API
2520	void ecb_cold	2913	void ecb_cold
2521	ev_verify (EV_P)	2914	ev_verify (EV_P) EV_THROW
2522	{	2915	{
2523	#if EV_VERIFY	2916	#if EV_VERIFY
2524	int i;	2917	int i;
2525	WL w;	2918	WL w, w2;
2526		2919
2527	assert (activecnt >= -1);	2920	assert (activecnt >= -1);
2528		2921
2529	assert (fdchangemax >= fdchangecnt);	2922	assert (fdchangemax >= fdchangecnt);
2530	for (i = 0; i < fdchangecnt; ++i)	2923	for (i = 0; i < fdchangecnt; ++i)
2531	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2924	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2532		2925
2533	assert (anfdmax >= 0);	2926	assert (anfdmax >= 0);
2534	for (i = 0; i < anfdmax; ++i)	2927	for (i = 0; i < anfdmax; ++i)
		2928	{
		2929	int j = 0;
		2930
2535	for (w = anfds [i].head; w; w = w->next)	2931	for (w = w2 = anfds [i].head; w; w = w->next)
2536	{	2932	{
2537	verify_watcher (EV_A_ (W)w);	2933	verify_watcher (EV_A_ (W)w);
		2934
		2935	if (j++ & 1)
		2936	{
		2937	assert (("libev: io watcher list contains a loop", w != w2));
		2938	w2 = w2->next;
		2939	}
		2940
2538	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2941	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2539	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2942	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2540	}	2943	}
		2944	}
2541		2945
2542	assert (timermax >= timercnt);	2946	assert (timermax >= timercnt);
2543	verify_heap (EV_A_ timers, timercnt);	2947	verify_heap (EV_A_ timers, timercnt);
2544		2948
2545	#if EV_PERIODIC_ENABLE	2949	#if EV_PERIODIC_ENABLE
…		…
2595	#if EV_MULTIPLICITY	2999	#if EV_MULTIPLICITY
2596	struct ev_loop * ecb_cold	3000	struct ev_loop * ecb_cold
2597	#else	3001	#else
2598	int	3002	int
2599	#endif	3003	#endif
2600	ev_default_loop (unsigned int flags)	3004	ev_default_loop (unsigned int flags) EV_THROW
2601	{	3005	{
2602	if (!ev_default_loop_ptr)	3006	if (!ev_default_loop_ptr)
2603	{	3007	{
2604	#if EV_MULTIPLICITY	3008	#if EV_MULTIPLICITY
2605	EV_P = ev_default_loop_ptr = &default_loop_struct;	3009	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2624		3028
2625	return ev_default_loop_ptr;	3029	return ev_default_loop_ptr;
2626	}	3030	}
2627		3031
2628	void	3032	void
2629	ev_loop_fork (EV_P)	3033	ev_loop_fork (EV_P) EV_THROW
2630	{	3034	{
2631	postfork = 1; /* must be in line with ev_default_fork */	3035	postfork = 1;
2632	}	3036	}
2633		3037
2634	/*****************************************************************************/	3038	/*****************************************************************************/
2635		3039
2636	void	3040	void
…		…
2638	{	3042	{
2639	EV_CB_INVOKE ((W)w, revents);	3043	EV_CB_INVOKE ((W)w, revents);
2640	}	3044	}
2641		3045
2642	unsigned int	3046	unsigned int
2643	ev_pending_count (EV_P)	3047	ev_pending_count (EV_P) EV_THROW
2644	{	3048	{
2645	int pri;	3049	int pri;
2646	unsigned int count = 0;	3050	unsigned int count = 0;
2647		3051
2648	for (pri = NUMPRI; pri--; )	3052	for (pri = NUMPRI; pri--; )
…		…
2652	}	3056	}
2653		3057
2654	void noinline	3058	void noinline
2655	ev_invoke_pending (EV_P)	3059	ev_invoke_pending (EV_P)
2656	{	3060	{
2657	int pri;	3061	pendingpri = NUMPRI;
2658		3062
2659	for (pri = NUMPRI; pri--; )	3063	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		3064	{
		3065	--pendingpri;
		3066
2660	while (pendingcnt [pri])	3067	while (pendingcnt [pendingpri])
2661	{	3068	{
2662	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	3069	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2663		3070
2664	p->w->pending = 0;	3071	p->w->pending = 0;
2665	EV_CB_INVOKE (p->w, p->events);	3072	EV_CB_INVOKE (p->w, p->events);
2666	EV_FREQUENT_CHECK;	3073	EV_FREQUENT_CHECK;
2667	}	3074	}
		3075	}
2668	}	3076	}
2669		3077
2670	#if EV_IDLE_ENABLE	3078	#if EV_IDLE_ENABLE
2671	/* make idle watchers pending. this handles the "call-idle */	3079	/* make idle watchers pending. this handles the "call-idle */
2672	/* only when higher priorities are idle" logic */	3080	/* only when higher priorities are idle" logic */
…		…
2762	{	3170	{
2763	EV_FREQUENT_CHECK;	3171	EV_FREQUENT_CHECK;
2764		3172
2765	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3173	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2766	{	3174	{
2767	int feed_count = 0;
2768
2769	do	3175	do
2770	{	3176	{
2771	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3177	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2772		3178
2773	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3179	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2907		3313
2908	mn_now = ev_rt_now;	3314	mn_now = ev_rt_now;
2909	}	3315	}
2910	}	3316	}
2911		3317
2912	void	3318	int
2913	ev_run (EV_P_ int flags)	3319	ev_run (EV_P_ int flags)
2914	{	3320	{
2915	#if EV_FEATURE_API	3321	#if EV_FEATURE_API
2916	++loop_depth;	3322	++loop_depth;
2917	#endif	3323	#endif
…		…
3032	backend_poll (EV_A_ waittime);	3438	backend_poll (EV_A_ waittime);
3033	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3439	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3034		3440
3035	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3441	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3036		3442
		3443	ECB_MEMORY_FENCE_ACQUIRE;
3037	if (pipe_write_skipped)	3444	if (pipe_write_skipped)
3038	{	3445	{
3039	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3446	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3040	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3447	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3041	}	3448	}
…		…
3074	loop_done = EVBREAK_CANCEL;	3481	loop_done = EVBREAK_CANCEL;
3075		3482
3076	#if EV_FEATURE_API	3483	#if EV_FEATURE_API
3077	--loop_depth;	3484	--loop_depth;
3078	#endif	3485	#endif
		3486
		3487	return activecnt;
3079	}	3488	}
3080		3489
3081	void	3490	void
3082	ev_break (EV_P_ int how)	3491	ev_break (EV_P_ int how) EV_THROW
3083	{	3492	{
3084	loop_done = how;	3493	loop_done = how;
3085	}	3494	}
3086		3495
3087	void	3496	void
3088	ev_ref (EV_P)	3497	ev_ref (EV_P) EV_THROW
3089	{	3498	{
3090	++activecnt;	3499	++activecnt;
3091	}	3500	}
3092		3501
3093	void	3502	void
3094	ev_unref (EV_P)	3503	ev_unref (EV_P) EV_THROW
3095	{	3504	{
3096	--activecnt;	3505	--activecnt;
3097	}	3506	}
3098		3507
3099	void	3508	void
3100	ev_now_update (EV_P)	3509	ev_now_update (EV_P) EV_THROW
3101	{	3510	{
3102	time_update (EV_A_ 1e100);	3511	time_update (EV_A_ 1e100);
3103	}	3512	}
3104		3513
3105	void	3514	void
3106	ev_suspend (EV_P)	3515	ev_suspend (EV_P) EV_THROW
3107	{	3516	{
3108	ev_now_update (EV_A);	3517	ev_now_update (EV_A);
3109	}	3518	}
3110		3519
3111	void	3520	void
3112	ev_resume (EV_P)	3521	ev_resume (EV_P) EV_THROW
3113	{	3522	{
3114	ev_tstamp mn_prev = mn_now;	3523	ev_tstamp mn_prev = mn_now;
3115		3524
3116	ev_now_update (EV_A);	3525	ev_now_update (EV_A);
3117	timers_reschedule (EV_A_ mn_now - mn_prev);	3526	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3156	w->pending = 0;	3565	w->pending = 0;
3157	}	3566	}
3158	}	3567	}
3159		3568
3160	int	3569	int
3161	ev_clear_pending (EV_P_ void *w)	3570	ev_clear_pending (EV_P_ void *w) EV_THROW
3162	{	3571	{
3163	W w_ = (W)w;	3572	W w_ = (W)w;
3164	int pending = w_->pending;	3573	int pending = w_->pending;
3165		3574
3166	if (expect_true (pending))	3575	if (expect_true (pending))
…		…
3199	}	3608	}
3200		3609
3201	/*****************************************************************************/	3610	/*****************************************************************************/
3202		3611
3203	void noinline	3612	void noinline
3204	ev_io_start (EV_P_ ev_io *w)	3613	ev_io_start (EV_P_ ev_io *w) EV_THROW
3205	{	3614	{
3206	int fd = w->fd;	3615	int fd = w->fd;
3207		3616
3208	if (expect_false (ev_is_active (w)))	3617	if (expect_false (ev_is_active (w)))
3209	return;	3618	return;
…		…
3215		3624
3216	ev_start (EV_A_ (W)w, 1);	3625	ev_start (EV_A_ (W)w, 1);
3217	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3626	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3218	wlist_add (&anfds[fd].head, (WL)w);	3627	wlist_add (&anfds[fd].head, (WL)w);
3219		3628
		3629	/* common bug, apparently */
		3630	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3631
3220	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3632	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3221	w->events &= ~EV__IOFDSET;	3633	w->events &= ~EV__IOFDSET;
3222		3634
3223	EV_FREQUENT_CHECK;	3635	EV_FREQUENT_CHECK;
3224	}	3636	}
3225		3637
3226	void noinline	3638	void noinline
3227	ev_io_stop (EV_P_ ev_io *w)	3639	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3228	{	3640	{
3229	clear_pending (EV_A_ (W)w);	3641	clear_pending (EV_A_ (W)w);
3230	if (expect_false (!ev_is_active (w)))	3642	if (expect_false (!ev_is_active (w)))
3231	return;	3643	return;
3232		3644
…		…
3241		3653
3242	EV_FREQUENT_CHECK;	3654	EV_FREQUENT_CHECK;
3243	}	3655	}
3244		3656
3245	void noinline	3657	void noinline
3246	ev_timer_start (EV_P_ ev_timer *w)	3658	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3247	{	3659	{
3248	if (expect_false (ev_is_active (w)))	3660	if (expect_false (ev_is_active (w)))
3249	return;	3661	return;
3250		3662
3251	ev_at (w) += mn_now;	3663	ev_at (w) += mn_now;
…		…
3265		3677
3266	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3678	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3267	}	3679	}
3268		3680
3269	void noinline	3681	void noinline
3270	ev_timer_stop (EV_P_ ev_timer *w)	3682	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3271	{	3683	{
3272	clear_pending (EV_A_ (W)w);	3684	clear_pending (EV_A_ (W)w);
3273	if (expect_false (!ev_is_active (w)))	3685	if (expect_false (!ev_is_active (w)))
3274	return;	3686	return;
3275		3687
…		…
3295		3707
3296	EV_FREQUENT_CHECK;	3708	EV_FREQUENT_CHECK;
3297	}	3709	}
3298		3710
3299	void noinline	3711	void noinline
3300	ev_timer_again (EV_P_ ev_timer *w)	3712	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3301	{	3713	{
3302	EV_FREQUENT_CHECK;	3714	EV_FREQUENT_CHECK;
3303		3715
3304	clear_pending (EV_A_ w);	3716	clear_pending (EV_A_ (W)w);
3305		3717
3306	if (ev_is_active (w))	3718	if (ev_is_active (w))
3307	{	3719	{
3308	if (w->repeat)	3720	if (w->repeat)
3309	{	3721	{
…		…
3322		3734
3323	EV_FREQUENT_CHECK;	3735	EV_FREQUENT_CHECK;
3324	}	3736	}
3325		3737
3326	ev_tstamp	3738	ev_tstamp
3327	ev_timer_remaining (EV_P_ ev_timer *w)	3739	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3328	{	3740	{
3329	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3741	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3330	}	3742	}
3331		3743
3332	#if EV_PERIODIC_ENABLE	3744	#if EV_PERIODIC_ENABLE
3333	void noinline	3745	void noinline
3334	ev_periodic_start (EV_P_ ev_periodic *w)	3746	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3335	{	3747	{
3336	if (expect_false (ev_is_active (w)))	3748	if (expect_false (ev_is_active (w)))
3337	return;	3749	return;
3338		3750
3339	if (w->reschedule_cb)	3751	if (w->reschedule_cb)
…		…
3359		3771
3360	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3772	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3361	}	3773	}
3362		3774
3363	void noinline	3775	void noinline
3364	ev_periodic_stop (EV_P_ ev_periodic *w)	3776	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3365	{	3777	{
3366	clear_pending (EV_A_ (W)w);	3778	clear_pending (EV_A_ (W)w);
3367	if (expect_false (!ev_is_active (w)))	3779	if (expect_false (!ev_is_active (w)))
3368	return;	3780	return;
3369		3781
…		…
3387		3799
3388	EV_FREQUENT_CHECK;	3800	EV_FREQUENT_CHECK;
3389	}	3801	}
3390		3802
3391	void noinline	3803	void noinline
3392	ev_periodic_again (EV_P_ ev_periodic *w)	3804	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3393	{	3805	{
3394	/* TODO: use adjustheap and recalculation */	3806	/* TODO: use adjustheap and recalculation */
3395	ev_periodic_stop (EV_A_ w);	3807	ev_periodic_stop (EV_A_ w);
3396	ev_periodic_start (EV_A_ w);	3808	ev_periodic_start (EV_A_ w);
3397	}	3809	}
…		…
3402	#endif	3814	#endif
3403		3815
3404	#if EV_SIGNAL_ENABLE	3816	#if EV_SIGNAL_ENABLE
3405		3817
3406	void noinline	3818	void noinline
3407	ev_signal_start (EV_P_ ev_signal *w)	3819	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3408	{	3820	{
3409	if (expect_false (ev_is_active (w)))	3821	if (expect_false (ev_is_active (w)))
3410	return;	3822	return;
3411		3823
3412	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3824	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3414	#if EV_MULTIPLICITY	3826	#if EV_MULTIPLICITY
3415	assert (("libev: a signal must not be attached to two different loops",	3827	assert (("libev: a signal must not be attached to two different loops",
3416	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3828	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3417		3829
3418	signals [w->signum - 1].loop = EV_A;	3830	signals [w->signum - 1].loop = EV_A;
		3831	ECB_MEMORY_FENCE_RELEASE;
3419	#endif	3832	#endif
3420		3833
3421	EV_FREQUENT_CHECK;	3834	EV_FREQUENT_CHECK;
3422		3835
3423	#if EV_USE_SIGNALFD	3836	#if EV_USE_SIGNALFD
…		…
3483		3896
3484	EV_FREQUENT_CHECK;	3897	EV_FREQUENT_CHECK;
3485	}	3898	}
3486		3899
3487	void noinline	3900	void noinline
3488	ev_signal_stop (EV_P_ ev_signal *w)	3901	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3489	{	3902	{
3490	clear_pending (EV_A_ (W)w);	3903	clear_pending (EV_A_ (W)w);
3491	if (expect_false (!ev_is_active (w)))	3904	if (expect_false (!ev_is_active (w)))
3492	return;	3905	return;
3493		3906
…		…
3524	#endif	3937	#endif
3525		3938
3526	#if EV_CHILD_ENABLE	3939	#if EV_CHILD_ENABLE
3527		3940
3528	void	3941	void
3529	ev_child_start (EV_P_ ev_child *w)	3942	ev_child_start (EV_P_ ev_child *w) EV_THROW
3530	{	3943	{
3531	#if EV_MULTIPLICITY	3944	#if EV_MULTIPLICITY
3532	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3945	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3533	#endif	3946	#endif
3534	if (expect_false (ev_is_active (w)))	3947	if (expect_false (ev_is_active (w)))
…		…
3541		3954
3542	EV_FREQUENT_CHECK;	3955	EV_FREQUENT_CHECK;
3543	}	3956	}
3544		3957
3545	void	3958	void
3546	ev_child_stop (EV_P_ ev_child *w)	3959	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3547	{	3960	{
3548	clear_pending (EV_A_ (W)w);	3961	clear_pending (EV_A_ (W)w);
3549	if (expect_false (!ev_is_active (w)))	3962	if (expect_false (!ev_is_active (w)))
3550	return;	3963	return;
3551		3964
…		…
3578	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3991	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3579		3992
3580	static void noinline	3993	static void noinline
3581	infy_add (EV_P_ ev_stat *w)	3994	infy_add (EV_P_ ev_stat *w)
3582	{	3995	{
3583	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);	3996	w->wd = inotify_add_watch (fs_fd, w->path,
		3997	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3998	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3999	| IN_DONT_FOLLOW | IN_MASK_ADD);
3584		4000
3585	if (w->wd >= 0)	4001	if (w->wd >= 0)
3586	{	4002	{
3587	struct statfs sfs;	4003	struct statfs sfs;
3588		4004
…		…
3592		4008
3593	if (!fs_2625)	4009	if (!fs_2625)
3594	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	4010	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3595	else if (!statfs (w->path, &sfs)	4011	else if (!statfs (w->path, &sfs)
3596	&& (sfs.f_type == 0x1373 /* devfs */	4012	&& (sfs.f_type == 0x1373 /* devfs */
		4013	|| sfs.f_type == 0x4006 /* fat */
		4014	|| sfs.f_type == 0x4d44 /* msdos */
3597	|| sfs.f_type == 0xEF53 /* ext2/3 */	4015	|| sfs.f_type == 0xEF53 /* ext2/3 */
		4016	|| sfs.f_type == 0x72b6 /* jffs2 */
		4017	|| sfs.f_type == 0x858458f6 /* ramfs */
		4018	|| sfs.f_type == 0x5346544e /* ntfs */
3598	|| sfs.f_type == 0x3153464a /* jfs */	4019	|| sfs.f_type == 0x3153464a /* jfs */
		4020	|| sfs.f_type == 0x9123683e /* btrfs */
3599	|| sfs.f_type == 0x52654973 /* reiser3 */	4021	|| sfs.f_type == 0x52654973 /* reiser3 */
3600	|| sfs.f_type == 0x01021994 /* tempfs */	4022	|| sfs.f_type == 0x01021994 /* tmpfs */
3601	|| sfs.f_type == 0x58465342 /* xfs */))	4023	|| sfs.f_type == 0x58465342 /* xfs */))
3602	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	4024	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3603	else	4025	else
3604	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	4026	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3605	}	4027	}
…		…
3718	}	4140	}
3719		4141
3720	inline_size int	4142	inline_size int
3721	infy_newfd (void)	4143	infy_newfd (void)
3722	{	4144	{
3723	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4145	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3724	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4146	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3725	if (fd >= 0)	4147	if (fd >= 0)
3726	return fd;	4148	return fd;
3727	#endif	4149	#endif
3728	return inotify_init ();	4150	return inotify_init ();
…		…
3803	#else	4225	#else
3804	# define EV_LSTAT(p,b) lstat (p, b)	4226	# define EV_LSTAT(p,b) lstat (p, b)
3805	#endif	4227	#endif
3806		4228
3807	void	4229	void
3808	ev_stat_stat (EV_P_ ev_stat *w)	4230	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3809	{	4231	{
3810	if (lstat (w->path, &w->attr) < 0)	4232	if (lstat (w->path, &w->attr) < 0)
3811	w->attr.st_nlink = 0;	4233	w->attr.st_nlink = 0;
3812	else if (!w->attr.st_nlink)	4234	else if (!w->attr.st_nlink)
3813	w->attr.st_nlink = 1;	4235	w->attr.st_nlink = 1;
…		…
3852	ev_feed_event (EV_A_ w, EV_STAT);	4274	ev_feed_event (EV_A_ w, EV_STAT);
3853	}	4275	}
3854	}	4276	}
3855		4277
3856	void	4278	void
3857	ev_stat_start (EV_P_ ev_stat *w)	4279	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3858	{	4280	{
3859	if (expect_false (ev_is_active (w)))	4281	if (expect_false (ev_is_active (w)))
3860	return;	4282	return;
3861		4283
3862	ev_stat_stat (EV_A_ w);	4284	ev_stat_stat (EV_A_ w);
…		…
3883		4305
3884	EV_FREQUENT_CHECK;	4306	EV_FREQUENT_CHECK;
3885	}	4307	}
3886		4308
3887	void	4309	void
3888	ev_stat_stop (EV_P_ ev_stat *w)	4310	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3889	{	4311	{
3890	clear_pending (EV_A_ (W)w);	4312	clear_pending (EV_A_ (W)w);
3891	if (expect_false (!ev_is_active (w)))	4313	if (expect_false (!ev_is_active (w)))
3892	return;	4314	return;
3893		4315
…		…
3909	}	4331	}
3910	#endif	4332	#endif
3911		4333
3912	#if EV_IDLE_ENABLE	4334	#if EV_IDLE_ENABLE
3913	void	4335	void
3914	ev_idle_start (EV_P_ ev_idle *w)	4336	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3915	{	4337	{
3916	if (expect_false (ev_is_active (w)))	4338	if (expect_false (ev_is_active (w)))
3917	return;	4339	return;
3918		4340
3919	pri_adjust (EV_A_ (W)w);	4341	pri_adjust (EV_A_ (W)w);
…		…
3932		4354
3933	EV_FREQUENT_CHECK;	4355	EV_FREQUENT_CHECK;
3934	}	4356	}
3935		4357
3936	void	4358	void
3937	ev_idle_stop (EV_P_ ev_idle *w)	4359	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3938	{	4360	{
3939	clear_pending (EV_A_ (W)w);	4361	clear_pending (EV_A_ (W)w);
3940	if (expect_false (!ev_is_active (w)))	4362	if (expect_false (!ev_is_active (w)))
3941	return;	4363	return;
3942		4364
…		…
3956	}	4378	}
3957	#endif	4379	#endif
3958		4380
3959	#if EV_PREPARE_ENABLE	4381	#if EV_PREPARE_ENABLE
3960	void	4382	void
3961	ev_prepare_start (EV_P_ ev_prepare *w)	4383	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3962	{	4384	{
3963	if (expect_false (ev_is_active (w)))	4385	if (expect_false (ev_is_active (w)))
3964	return;	4386	return;
3965		4387
3966	EV_FREQUENT_CHECK;	4388	EV_FREQUENT_CHECK;
…		…
3971		4393
3972	EV_FREQUENT_CHECK;	4394	EV_FREQUENT_CHECK;
3973	}	4395	}
3974		4396
3975	void	4397	void
3976	ev_prepare_stop (EV_P_ ev_prepare *w)	4398	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3977	{	4399	{
3978	clear_pending (EV_A_ (W)w);	4400	clear_pending (EV_A_ (W)w);
3979	if (expect_false (!ev_is_active (w)))	4401	if (expect_false (!ev_is_active (w)))
3980	return;	4402	return;
3981		4403
…		…
3994	}	4416	}
3995	#endif	4417	#endif
3996		4418
3997	#if EV_CHECK_ENABLE	4419	#if EV_CHECK_ENABLE
3998	void	4420	void
3999	ev_check_start (EV_P_ ev_check *w)	4421	ev_check_start (EV_P_ ev_check *w) EV_THROW
4000	{	4422	{
4001	if (expect_false (ev_is_active (w)))	4423	if (expect_false (ev_is_active (w)))
4002	return;	4424	return;
4003		4425
4004	EV_FREQUENT_CHECK;	4426	EV_FREQUENT_CHECK;
…		…
4009		4431
4010	EV_FREQUENT_CHECK;	4432	EV_FREQUENT_CHECK;
4011	}	4433	}
4012		4434
4013	void	4435	void
4014	ev_check_stop (EV_P_ ev_check *w)	4436	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4015	{	4437	{
4016	clear_pending (EV_A_ (W)w);	4438	clear_pending (EV_A_ (W)w);
4017	if (expect_false (!ev_is_active (w)))	4439	if (expect_false (!ev_is_active (w)))
4018	return;	4440	return;
4019		4441
…		…
4032	}	4454	}
4033	#endif	4455	#endif
4034		4456
4035	#if EV_EMBED_ENABLE	4457	#if EV_EMBED_ENABLE
4036	void noinline	4458	void noinline
4037	ev_embed_sweep (EV_P_ ev_embed *w)	4459	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4038	{	4460	{
4039	ev_run (w->other, EVRUN_NOWAIT);	4461	ev_run (w->other, EVRUN_NOWAIT);
4040	}	4462	}
4041		4463
4042	static void	4464	static void
…		…
4090	ev_idle_stop (EV_A_ idle);	4512	ev_idle_stop (EV_A_ idle);
4091	}	4513	}
4092	#endif	4514	#endif
4093		4515
4094	void	4516	void
4095	ev_embed_start (EV_P_ ev_embed *w)	4517	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4096	{	4518	{
4097	if (expect_false (ev_is_active (w)))	4519	if (expect_false (ev_is_active (w)))
4098	return;	4520	return;
4099		4521
4100	{	4522	{
…		…
4121		4543
4122	EV_FREQUENT_CHECK;	4544	EV_FREQUENT_CHECK;
4123	}	4545	}
4124		4546
4125	void	4547	void
4126	ev_embed_stop (EV_P_ ev_embed *w)	4548	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4127	{	4549	{
4128	clear_pending (EV_A_ (W)w);	4550	clear_pending (EV_A_ (W)w);
4129	if (expect_false (!ev_is_active (w)))	4551	if (expect_false (!ev_is_active (w)))
4130	return;	4552	return;
4131		4553
…		…
4141	}	4563	}
4142	#endif	4564	#endif
4143		4565
4144	#if EV_FORK_ENABLE	4566	#if EV_FORK_ENABLE
4145	void	4567	void
4146	ev_fork_start (EV_P_ ev_fork *w)	4568	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4147	{	4569	{
4148	if (expect_false (ev_is_active (w)))	4570	if (expect_false (ev_is_active (w)))
4149	return;	4571	return;
4150		4572
4151	EV_FREQUENT_CHECK;	4573	EV_FREQUENT_CHECK;
…		…
4156		4578
4157	EV_FREQUENT_CHECK;	4579	EV_FREQUENT_CHECK;
4158	}	4580	}
4159		4581
4160	void	4582	void
4161	ev_fork_stop (EV_P_ ev_fork *w)	4583	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4162	{	4584	{
4163	clear_pending (EV_A_ (W)w);	4585	clear_pending (EV_A_ (W)w);
4164	if (expect_false (!ev_is_active (w)))	4586	if (expect_false (!ev_is_active (w)))
4165	return;	4587	return;
4166		4588
…		…
4179	}	4601	}
4180	#endif	4602	#endif
4181		4603
4182	#if EV_CLEANUP_ENABLE	4604	#if EV_CLEANUP_ENABLE
4183	void	4605	void
4184	ev_cleanup_start (EV_P_ ev_cleanup *w)	4606	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4185	{	4607	{
4186	if (expect_false (ev_is_active (w)))	4608	if (expect_false (ev_is_active (w)))
4187	return;	4609	return;
4188		4610
4189	EV_FREQUENT_CHECK;	4611	EV_FREQUENT_CHECK;
…		…
4196	ev_unref (EV_A);	4618	ev_unref (EV_A);
4197	EV_FREQUENT_CHECK;	4619	EV_FREQUENT_CHECK;
4198	}	4620	}
4199		4621
4200	void	4622	void
4201	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4623	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4202	{	4624	{
4203	clear_pending (EV_A_ (W)w);	4625	clear_pending (EV_A_ (W)w);
4204	if (expect_false (!ev_is_active (w)))	4626	if (expect_false (!ev_is_active (w)))
4205	return;	4627	return;
4206		4628
…		…
4220	}	4642	}
4221	#endif	4643	#endif
4222		4644
4223	#if EV_ASYNC_ENABLE	4645	#if EV_ASYNC_ENABLE
4224	void	4646	void
4225	ev_async_start (EV_P_ ev_async *w)	4647	ev_async_start (EV_P_ ev_async *w) EV_THROW
4226	{	4648	{
4227	if (expect_false (ev_is_active (w)))	4649	if (expect_false (ev_is_active (w)))
4228	return;	4650	return;
4229		4651
4230	w->sent = 0;	4652	w->sent = 0;
…		…
4239		4661
4240	EV_FREQUENT_CHECK;	4662	EV_FREQUENT_CHECK;
4241	}	4663	}
4242		4664
4243	void	4665	void
4244	ev_async_stop (EV_P_ ev_async *w)	4666	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4245	{	4667	{
4246	clear_pending (EV_A_ (W)w);	4668	clear_pending (EV_A_ (W)w);
4247	if (expect_false (!ev_is_active (w)))	4669	if (expect_false (!ev_is_active (w)))
4248	return;	4670	return;
4249		4671
…		…
4260		4682
4261	EV_FREQUENT_CHECK;	4683	EV_FREQUENT_CHECK;
4262	}	4684	}
4263		4685
4264	void	4686	void
4265	ev_async_send (EV_P_ ev_async *w)	4687	ev_async_send (EV_P_ ev_async *w) EV_THROW
4266	{	4688	{
4267	w->sent = 1;	4689	w->sent = 1;
4268	evpipe_write (EV_A_ &async_pending);	4690	evpipe_write (EV_A_ &async_pending);
4269	}	4691	}
4270	#endif	4692	#endif
…		…
4307		4729
4308	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4730	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4309	}	4731	}
4310		4732
4311	void	4733	void
4312	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4734	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4313	{	4735	{
4314	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4736	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4315		4737
4316	if (expect_false (!once))	4738	if (expect_false (!once))
4317	{	4739	{
…		…
4339		4761
4340	/*****************************************************************************/	4762	/*****************************************************************************/
4341		4763
4342	#if EV_WALK_ENABLE	4764	#if EV_WALK_ENABLE
4343	void ecb_cold	4765	void ecb_cold
4344	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4766	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4345	{	4767	{
4346	int i, j;	4768	int i, j;
4347	ev_watcher_list *wl, *wn;	4769	ev_watcher_list *wl, *wn;
4348		4770
4349	if (types & (EV_IO | EV_EMBED))	4771	if (types & (EV_IO | EV_EMBED))

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines