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Comparing libev/ev.c (file contents):
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC vs.
Revision 1.459 by root, Tue Oct 29 12:13:37 2013 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 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	EV_CPP(extern "C" {)	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
189		198
190	#ifndef _WIN32	199	#ifndef _WIN32
191	# include <sys/time.h>	200	# include <sys/time.h>
192	# include <sys/wait.h>	201	# include <sys/wait.h>
193	# include <unistd.h>	202	# include <unistd.h>
194	#else	203	#else
195	# include <io.h>	204	# include <io.h>
196	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
197	# include <windows.h>	207	# include <windows.h>
198	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
199	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
200	# endif	210	# endif
201	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
210	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
211		221
212	/* 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 */
213		223
214	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
215	#if defined (EV_NSIG)	225	#if defined EV_NSIG
216	/* use what's provided */	226	/* use what's provided */
217	#elif defined (NSIG)	227	#elif defined NSIG
218	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
219	#elif defined(_NSIG)	229	#elif defined _NSIG
220	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
221	#elif defined (SIGMAX)	231	#elif defined SIGMAX
222	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
223	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
224	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
225	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
226	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
227	#elif defined (MAXSIG)	237	#elif defined MAXSIG
228	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
229	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
230	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
231	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
232	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
234	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235	#else	245	#else
236	# error "unable to find value for NSIG, please report"	246	# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237	/* to make it compile regardless, just remove the above line, */
238	/* but consider reporting it, too! :) */
239	# define EV_NSIG 65
240	#endif	247	#endif
241		248
242	#ifndef EV_USE_FLOOR	249	#ifndef EV_USE_FLOOR
243	# define EV_USE_FLOOR 0	250	# define EV_USE_FLOOR 0
244	#endif	251	#endif
…		…
250	# define EV_USE_CLOCK_SYSCALL 0	257	# define EV_USE_CLOCK_SYSCALL 0
251	# endif	258	# endif
252	#endif	259	#endif
253		260
254	#ifndef EV_USE_MONOTONIC	261	#ifndef EV_USE_MONOTONIC
255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	262	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256	# define EV_USE_MONOTONIC EV_FEATURE_OS	263	# define EV_USE_MONOTONIC EV_FEATURE_OS
257	# else	264	# else
258	# define EV_USE_MONOTONIC 0	265	# define EV_USE_MONOTONIC 0
259	# endif	266	# endif
260	#endif	267	#endif
…		…
347		354
348	#ifndef EV_HEAP_CACHE_AT	355	#ifndef EV_HEAP_CACHE_AT
349	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	356	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350	#endif	357	#endif
351		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
352	/* 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, */
353	/* which makes programs even slower. might work on other unices, too. */	376	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	377	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	378	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	379	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	380	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	381	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	382	# define EV_USE_MONOTONIC 1
360	# else	383	# else
…		…
363	# endif	386	# endif
364	#endif	387	#endif
365		388
366	/* 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 */
367		390
368	#ifdef _AIX
369	/* AIX has a completely broken poll.h header */
370	# undef EV_USE_POLL
371	# define EV_USE_POLL 0
372	#endif
373
374	#ifndef CLOCK_MONOTONIC	391	#ifndef CLOCK_MONOTONIC
375	# undef EV_USE_MONOTONIC	392	# undef EV_USE_MONOTONIC
376	# define EV_USE_MONOTONIC 0	393	# define EV_USE_MONOTONIC 0
377	#endif	394	#endif
378		395
…		…
386	# define EV_USE_INOTIFY 0	403	# define EV_USE_INOTIFY 0
387	#endif	404	#endif
388		405
389	#if !EV_USE_NANOSLEEP	406	#if !EV_USE_NANOSLEEP
390	/* 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 */
391	# if !defined(_WIN32) && !defined(__hpux)	408	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	409	# include <sys/select.h>
393	# endif	410	# endif
394	#endif	411	#endif
395		412
396	#if EV_USE_INOTIFY	413	#if EV_USE_INOTIFY
…		…
399	/* 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 */
400	# ifndef IN_DONT_FOLLOW	417	# ifndef IN_DONT_FOLLOW
401	# undef EV_USE_INOTIFY	418	# undef EV_USE_INOTIFY
402	# define EV_USE_INOTIFY 0	419	# define EV_USE_INOTIFY 0
403	# endif	420	# endif
404	#endif
405
406	#if EV_SELECT_IS_WINSOCKET
407	# include <winsock.h>
408	#endif	421	#endif
409		422
410	#if EV_USE_EVENTFD	423	#if EV_USE_EVENTFD
411	/* 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 */
412	# include <stdint.h>	425	# include <stdint.h>
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	477	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		478
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	479	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	480	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		481
		482	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
		483	/* ECB.H BEGIN */
		484	/*
		485	* libecb - http://software.schmorp.de/pkg/libecb
		486	*
		487	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		488	* Copyright (©) 2011 Emanuele Giaquinta
		489	* All rights reserved.
		490	*
		491	* Redistribution and use in source and binary forms, with or without modifica-
		492	* tion, are permitted provided that the following conditions are met:
		493	*
		494	* 1. Redistributions of source code must retain the above copyright notice,
		495	* this list of conditions and the following disclaimer.
		496	*
		497	* 2. Redistributions in binary form must reproduce the above copyright
		498	* notice, this list of conditions and the following disclaimer in the
		499	* documentation and/or other materials provided with the distribution.
		500	*
		501	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		502	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		503	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		504	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		505	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		506	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		507	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		508	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		509	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		510	* OF THE POSSIBILITY OF SUCH DAMAGE.
		511	*/
		512
		513	#ifndef ECB_H
		514	#define ECB_H
		515
		516	/* 16 bits major, 16 bits minor */
		517	#define ECB_VERSION 0x00010003
		518
		519	#ifdef _WIN32
		520	typedef signed char int8_t;
		521	typedef unsigned char uint8_t;
		522	typedef signed short int16_t;
		523	typedef unsigned short uint16_t;
		524	typedef signed int int32_t;
		525	typedef unsigned int uint32_t;
469	#if __GNUC__ >= 4	526	#if __GNUC__
470	# define expect(expr,value) __builtin_expect ((expr),(value))	527	typedef signed long long int64_t;
471	# define noinline __attribute__ ((noinline))	528	typedef unsigned long long uint64_t;
		529	#else /* _MSC_VER || __BORLANDC__ */
		530	typedef signed __int64 int64_t;
		531	typedef unsigned __int64 uint64_t;
		532	#endif
		533	#ifdef _WIN64
		534	#define ECB_PTRSIZE 8
		535	typedef uint64_t uintptr_t;
		536	typedef int64_t intptr_t;
		537	#else
		538	#define ECB_PTRSIZE 4
		539	typedef uint32_t uintptr_t;
		540	typedef int32_t intptr_t;
		541	#endif
472	#else	542	#else
473	# define expect(expr,value) (expr)	543	#include <inttypes.h>
474	# define noinline	544	#if UINTMAX_MAX > 0xffffffffU
475	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2	545	#define ECB_PTRSIZE 8
476	# define inline	546	#else
		547	#define ECB_PTRSIZE 4
		548	#endif
477	# endif	549	#endif
		550
		551	/* work around x32 idiocy by defining proper macros */
		552	#if __x86_64 || _M_AMD64
		553	#if _ILP32
		554	#define ECB_AMD64_X32 1
		555	#else
		556	#define ECB_AMD64 1
478	#endif	557	#endif
		558	#endif
479		559
		560	/* many compilers define _GNUC_ to some versions but then only implement
		561	* what their idiot authors think are the "more important" extensions,
		562	* causing enormous grief in return for some better fake benchmark numbers.
		563	* or so.
		564	* we try to detect these and simply assume they are not gcc - if they have
		565	* an issue with that they should have done it right in the first place.
		566	*/
		567	#ifndef ECB_GCC_VERSION
		568	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
		569	#define ECB_GCC_VERSION(major,minor) 0
		570	#else
		571	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
		572	#endif
		573	#endif
		574
		575	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		576	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		577	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		578	#define ECB_CPP (__cplusplus+0)
		579	#define ECB_CPP11 (__cplusplus >= 201103L)
		580
		581	#if ECB_CPP
		582	#define ECB_EXTERN_C extern "C"
		583	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		584	#define ECB_EXTERN_C_END }
		585	#else
		586	#define ECB_EXTERN_C extern
		587	#define ECB_EXTERN_C_BEG
		588	#define ECB_EXTERN_C_END
		589	#endif
		590
		591	/*****************************************************************************/
		592
		593	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		594	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		595
		596	#if ECB_NO_THREADS
		597	#define ECB_NO_SMP 1
		598	#endif
		599
		600	#if ECB_NO_SMP
		601	#define ECB_MEMORY_FENCE do { } while (0)
		602	#endif
		603
		604	#ifndef ECB_MEMORY_FENCE
		605	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		606	#if __i386 || __i386__
		607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		610	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		612	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		613	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		614	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		616	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		617	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		619	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		620	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		622	#elif __sparc || __sparc__
		623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		624	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		625	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		626	#elif defined __s390__ || defined __s390x__
		627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		628	#elif defined __mips__
		629	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		630	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		631	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		632	#elif defined __alpha__
		633	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		634	#elif defined __hppa__
		635	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		636	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		637	#elif defined __ia64__
		638	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		639	#elif defined __m68k__
		640	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		641	#elif defined __m88k__
		642	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		643	#elif defined __sh__
		644	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		645	#endif
		646	#endif
		647	#endif
		648
		649	#ifndef ECB_MEMORY_FENCE
		650	#if ECB_GCC_VERSION(4,7)
		651	/* see comment below (stdatomic.h) about the C11 memory model. */
		652	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		653
		654	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		655	* without risking compile time errors with other compilers. We *could*
		656	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		657	* around this shit time and again.
		658	* #elif defined __clang && __has_feature (cxx_atomic)
		659	* // see comment below (stdatomic.h) about the C11 memory model.
		660	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		661	*/
		662
		663	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		664	#define ECB_MEMORY_FENCE __sync_synchronize ()
		665	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		666	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		667	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		668	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		669	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		670	#elif defined _WIN32
		671	#include <WinNT.h>
		672	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		673	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		674	#include <mbarrier.h>
		675	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		676	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		677	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		678	#elif __xlC__
		679	#define ECB_MEMORY_FENCE __sync ()
		680	#endif
		681	#endif
		682
		683	#ifndef ECB_MEMORY_FENCE
		684	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		685	/* we assume that these memory fences work on all variables/all memory accesses, */
		686	/* not just C11 atomics and atomic accesses */
		687	#include <stdatomic.h>
		688	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		689	/* any fence other than seq_cst, which isn't very efficient for us. */
		690	/* Why that is, we don't know - either the C11 memory model is quite useless */
		691	/* for most usages, or gcc and clang have a bug */
		692	/* I *currently* lean towards the latter, and inefficiently implement */
		693	/* all three of ecb's fences as a seq_cst fence */
		694	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		695	#endif
		696	#endif
		697
		698	#ifndef ECB_MEMORY_FENCE
		699	#if !ECB_AVOID_PTHREADS
		700	/*
		701	* if you get undefined symbol references to pthread_mutex_lock,
		702	* or failure to find pthread.h, then you should implement
		703	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		704	* OR provide pthread.h and link against the posix thread library
		705	* of your system.
		706	*/
		707	#include <pthread.h>
		708	#define ECB_NEEDS_PTHREADS 1
		709	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		710
		711	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		712	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		713	#endif
		714	#endif
		715
		716	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		717	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		718	#endif
		719
		720	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		721	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		722	#endif
		723
		724	/*****************************************************************************/
		725
		726	#if __cplusplus
		727	#define ecb_inline static inline
		728	#elif ECB_GCC_VERSION(2,5)
		729	#define ecb_inline static __inline__
		730	#elif ECB_C99
		731	#define ecb_inline static inline
		732	#else
		733	#define ecb_inline static
		734	#endif
		735
		736	#if ECB_GCC_VERSION(3,3)
		737	#define ecb_restrict __restrict__
		738	#elif ECB_C99
		739	#define ecb_restrict restrict
		740	#else
		741	#define ecb_restrict
		742	#endif
		743
		744	typedef int ecb_bool;
		745
		746	#define ECB_CONCAT_(a, b) a ## b
		747	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		748	#define ECB_STRINGIFY_(a) # a
		749	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		750
		751	#define ecb_function_ ecb_inline
		752
		753	#if ECB_GCC_VERSION(3,1)
		754	#define ecb_attribute(attrlist) __attribute__(attrlist)
		755	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		756	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		757	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		758	#else
		759	#define ecb_attribute(attrlist)
		760	#define ecb_is_constant(expr) 0
		761	#define ecb_expect(expr,value) (expr)
		762	#define ecb_prefetch(addr,rw,locality)
		763	#endif
		764
		765	/* no emulation for ecb_decltype */
		766	#if ECB_GCC_VERSION(4,5)
		767	#define ecb_decltype(x) __decltype(x)
		768	#elif ECB_GCC_VERSION(3,0)
		769	#define ecb_decltype(x) __typeof(x)
		770	#endif
		771
		772	#define ecb_noinline ecb_attribute ((__noinline__))
		773	#define ecb_unused ecb_attribute ((__unused__))
		774	#define ecb_const ecb_attribute ((__const__))
		775	#define ecb_pure ecb_attribute ((__pure__))
		776
		777	#if ECB_C11
		778	#define ecb_noreturn _Noreturn
		779	#else
		780	#define ecb_noreturn ecb_attribute ((__noreturn__))
		781	#endif
		782
		783	#if ECB_GCC_VERSION(4,3)
		784	#define ecb_artificial ecb_attribute ((__artificial__))
		785	#define ecb_hot ecb_attribute ((__hot__))
		786	#define ecb_cold ecb_attribute ((__cold__))
		787	#else
		788	#define ecb_artificial
		789	#define ecb_hot
		790	#define ecb_cold
		791	#endif
		792
		793	/* put around conditional expressions if you are very sure that the */
		794	/* expression is mostly true or mostly false. note that these return */
		795	/* booleans, not the expression. */
480	#define expect_false(expr) expect ((expr) != 0, 0)	796	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481	#define expect_true(expr) expect ((expr) != 0, 1)	797	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		798	/* for compatibility to the rest of the world */
		799	#define ecb_likely(expr) ecb_expect_true (expr)
		800	#define ecb_unlikely(expr) ecb_expect_false (expr)
		801
		802	/* count trailing zero bits and count # of one bits */
		803	#if ECB_GCC_VERSION(3,4)
		804	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		805	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		806	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		807	#define ecb_ctz32(x) __builtin_ctz (x)
		808	#define ecb_ctz64(x) __builtin_ctzll (x)
		809	#define ecb_popcount32(x) __builtin_popcount (x)
		810	/* no popcountll */
		811	#else
		812	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		813	ecb_function_ int
		814	ecb_ctz32 (uint32_t x)
		815	{
		816	int r = 0;
		817
		818	x &= ~x + 1; /* this isolates the lowest bit */
		819
		820	#if ECB_branchless_on_i386
		821	r += !!(x & 0xaaaaaaaa) << 0;
		822	r += !!(x & 0xcccccccc) << 1;
		823	r += !!(x & 0xf0f0f0f0) << 2;
		824	r += !!(x & 0xff00ff00) << 3;
		825	r += !!(x & 0xffff0000) << 4;
		826	#else
		827	if (x & 0xaaaaaaaa) r += 1;
		828	if (x & 0xcccccccc) r += 2;
		829	if (x & 0xf0f0f0f0) r += 4;
		830	if (x & 0xff00ff00) r += 8;
		831	if (x & 0xffff0000) r += 16;
		832	#endif
		833
		834	return r;
		835	}
		836
		837	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		838	ecb_function_ int
		839	ecb_ctz64 (uint64_t x)
		840	{
		841	int shift = x & 0xffffffffU ? 0 : 32;
		842	return ecb_ctz32 (x >> shift) + shift;
		843	}
		844
		845	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		846	ecb_function_ int
		847	ecb_popcount32 (uint32_t x)
		848	{
		849	x -= (x >> 1) & 0x55555555;
		850	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		851	x = ((x >> 4) + x) & 0x0f0f0f0f;
		852	x *= 0x01010101;
		853
		854	return x >> 24;
		855	}
		856
		857	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		858	ecb_function_ int ecb_ld32 (uint32_t x)
		859	{
		860	int r = 0;
		861
		862	if (x >> 16) { x >>= 16; r += 16; }
		863	if (x >> 8) { x >>= 8; r += 8; }
		864	if (x >> 4) { x >>= 4; r += 4; }
		865	if (x >> 2) { x >>= 2; r += 2; }
		866	if (x >> 1) { r += 1; }
		867
		868	return r;
		869	}
		870
		871	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		872	ecb_function_ int ecb_ld64 (uint64_t x)
		873	{
		874	int r = 0;
		875
		876	if (x >> 32) { x >>= 32; r += 32; }
		877
		878	return r + ecb_ld32 (x);
		879	}
		880	#endif
		881
		882	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		883	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		884	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		885	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		886
		887	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		888	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		889	{
		890	return ( (x * 0x0802U & 0x22110U)
		891	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		892	}
		893
		894	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		895	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		896	{
		897	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		898	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		899	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		900	x = ( x >> 8 ) | ( x << 8);
		901
		902	return x;
		903	}
		904
		905	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		906	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		907	{
		908	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		909	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		910	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		911	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		912	x = ( x >> 16 ) | ( x << 16);
		913
		914	return x;
		915	}
		916
		917	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		918	/* so for this version we are lazy */
		919	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		920	ecb_function_ int
		921	ecb_popcount64 (uint64_t x)
		922	{
		923	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		924	}
		925
		926	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		927	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		928	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		929	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		930	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		931	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		932	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		933	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		934
		935	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		936	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		937	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		938	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		939	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		940	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		941	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		942	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		943
		944	#if ECB_GCC_VERSION(4,3)
		945	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		946	#define ecb_bswap32(x) __builtin_bswap32 (x)
		947	#define ecb_bswap64(x) __builtin_bswap64 (x)
		948	#else
		949	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		950	ecb_function_ uint16_t
		951	ecb_bswap16 (uint16_t x)
		952	{
		953	return ecb_rotl16 (x, 8);
		954	}
		955
		956	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		957	ecb_function_ uint32_t
		958	ecb_bswap32 (uint32_t x)
		959	{
		960	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		961	}
		962
		963	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		964	ecb_function_ uint64_t
		965	ecb_bswap64 (uint64_t x)
		966	{
		967	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		968	}
		969	#endif
		970
		971	#if ECB_GCC_VERSION(4,5)
		972	#define ecb_unreachable() __builtin_unreachable ()
		973	#else
		974	/* this seems to work fine, but gcc always emits a warning for it :/ */
		975	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		976	ecb_inline void ecb_unreachable (void) { }
		977	#endif
		978
		979	/* try to tell the compiler that some condition is definitely true */
		980	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
		981
		982	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		983	ecb_inline unsigned char
		984	ecb_byteorder_helper (void)
		985	{
		986	/* the union code still generates code under pressure in gcc, */
		987	/* but less than using pointers, and always seems to */
		988	/* successfully return a constant. */
		989	/* the reason why we have this horrible preprocessor mess */
		990	/* is to avoid it in all cases, at least on common architectures */
		991	/* or when using a recent enough gcc version (>= 4.6) */
		992	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		993	return 0x44;
		994	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		995	return 0x44;
		996	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		997	return 0x11;
		998	#else
		999	union
		1000	{
		1001	uint32_t i;
		1002	uint8_t c;
		1003	} u = { 0x11223344 };
		1004	return u.c;
		1005	#endif
		1006	}
		1007
		1008	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		1009	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		1010	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		1011	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		1012
		1013	#if ECB_GCC_VERSION(3,0) || ECB_C99
		1014	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		1015	#else
		1016	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		1017	#endif
		1018
		1019	#if __cplusplus
		1020	template<typename T>
		1021	static inline T ecb_div_rd (T val, T div)
		1022	{
		1023	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		1024	}
		1025	template<typename T>
		1026	static inline T ecb_div_ru (T val, T div)
		1027	{
		1028	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		1029	}
		1030	#else
		1031	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		1032	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		1033	#endif
		1034
		1035	#if ecb_cplusplus_does_not_suck
		1036	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		1037	template<typename T, int N>
		1038	static inline int ecb_array_length (const T (&arr)[N])
		1039	{
		1040	return N;
		1041	}
		1042	#else
		1043	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		1044	#endif
		1045
		1046	/*******************************************************************************/
		1047	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1048
		1049	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1050	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1051	#if 0 \
		1052	|| __i386 || __i386__ \
		1053	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1054	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1055	|| defined __arm__ && defined __ARM_EABI__ \
		1056	|| defined __s390__ || defined __s390x__ \
		1057	|| defined __mips__ \
		1058	|| defined __alpha__ \
		1059	|| defined __hppa__ \
		1060	|| defined __ia64__ \
		1061	|| defined __m68k__ \
		1062	|| defined __m88k__ \
		1063	|| defined __sh__ \
		1064	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1065	#define ECB_STDFP 1
		1066	#include <string.h> /* for memcpy */
		1067	#else
		1068	#define ECB_STDFP 0
		1069	#endif
		1070
		1071	#ifndef ECB_NO_LIBM
		1072
		1073	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1074
		1075	#ifdef NEN
		1076	#define ECB_NAN NAN
		1077	#else
		1078	#define ECB_NAN INFINITY
		1079	#endif
		1080
		1081	/* converts an ieee half/binary16 to a float */
		1082	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
		1083	ecb_function_ float
		1084	ecb_binary16_to_float (uint16_t x)
		1085	{
		1086	int e = (x >> 10) & 0x1f;
		1087	int m = x & 0x3ff;
		1088	float r;
		1089
		1090	if (!e ) r = ldexpf (m , -24);
		1091	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
		1092	else if (m ) r = ECB_NAN;
		1093	else r = INFINITY;
		1094
		1095	return x & 0x8000 ? -r : r;
		1096	}
		1097
		1098	/* convert a float to ieee single/binary32 */
		1099	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1100	ecb_function_ uint32_t
		1101	ecb_float_to_binary32 (float x)
		1102	{
		1103	uint32_t r;
		1104
		1105	#if ECB_STDFP
		1106	memcpy (&r, &x, 4);
		1107	#else
		1108	/* slow emulation, works for anything but -0 */
		1109	uint32_t m;
		1110	int e;
		1111
		1112	if (x == 0e0f ) return 0x00000000U;
		1113	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1114	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1115	if (x != x ) return 0x7fbfffffU;
		1116
		1117	m = frexpf (x, &e) * 0x1000000U;
		1118
		1119	r = m & 0x80000000U;
		1120
		1121	if (r)
		1122	m = -m;
		1123
		1124	if (e <= -126)
		1125	{
		1126	m &= 0xffffffU;
		1127	m >>= (-125 - e);
		1128	e = -126;
		1129	}
		1130
		1131	r |= (e + 126) << 23;
		1132	r |= m & 0x7fffffU;
		1133	#endif
		1134
		1135	return r;
		1136	}
		1137
		1138	/* converts an ieee single/binary32 to a float */
		1139	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1140	ecb_function_ float
		1141	ecb_binary32_to_float (uint32_t x)
		1142	{
		1143	float r;
		1144
		1145	#if ECB_STDFP
		1146	memcpy (&r, &x, 4);
		1147	#else
		1148	/* emulation, only works for normals and subnormals and +0 */
		1149	int neg = x >> 31;
		1150	int e = (x >> 23) & 0xffU;
		1151
		1152	x &= 0x7fffffU;
		1153
		1154	if (e)
		1155	x |= 0x800000U;
		1156	else
		1157	e = 1;
		1158
		1159	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1160	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1161
		1162	r = neg ? -r : r;
		1163	#endif
		1164
		1165	return r;
		1166	}
		1167
		1168	/* convert a double to ieee double/binary64 */
		1169	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1170	ecb_function_ uint64_t
		1171	ecb_double_to_binary64 (double x)
		1172	{
		1173	uint64_t r;
		1174
		1175	#if ECB_STDFP
		1176	memcpy (&r, &x, 8);
		1177	#else
		1178	/* slow emulation, works for anything but -0 */
		1179	uint64_t m;
		1180	int e;
		1181
		1182	if (x == 0e0 ) return 0x0000000000000000U;
		1183	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1184	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1185	if (x != x ) return 0X7ff7ffffffffffffU;
		1186
		1187	m = frexp (x, &e) * 0x20000000000000U;
		1188
		1189	r = m & 0x8000000000000000;;
		1190
		1191	if (r)
		1192	m = -m;
		1193
		1194	if (e <= -1022)
		1195	{
		1196	m &= 0x1fffffffffffffU;
		1197	m >>= (-1021 - e);
		1198	e = -1022;
		1199	}
		1200
		1201	r |= ((uint64_t)(e + 1022)) << 52;
		1202	r |= m & 0xfffffffffffffU;
		1203	#endif
		1204
		1205	return r;
		1206	}
		1207
		1208	/* converts an ieee double/binary64 to a double */
		1209	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1210	ecb_function_ double
		1211	ecb_binary64_to_double (uint64_t x)
		1212	{
		1213	double r;
		1214
		1215	#if ECB_STDFP
		1216	memcpy (&r, &x, 8);
		1217	#else
		1218	/* emulation, only works for normals and subnormals and +0 */
		1219	int neg = x >> 63;
		1220	int e = (x >> 52) & 0x7ffU;
		1221
		1222	x &= 0xfffffffffffffU;
		1223
		1224	if (e)
		1225	x |= 0x10000000000000U;
		1226	else
		1227	e = 1;
		1228
		1229	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1230	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1231
		1232	r = neg ? -r : r;
		1233	#endif
		1234
		1235	return r;
		1236	}
		1237
		1238	#endif
		1239
		1240	#endif
		1241
		1242	/* ECB.H END */
		1243
		1244	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		1245	/* if your architecture doesn't need memory fences, e.g. because it is
		1246	* single-cpu/core, or if you use libev in a project that doesn't use libev
		1247	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		1248	* libev, in which cases the memory fences become nops.
		1249	* alternatively, you can remove this #error and link against libpthread,
		1250	* which will then provide the memory fences.
		1251	*/
		1252	# error "memory fences not defined for your architecture, please report"
		1253	#endif
		1254
		1255	#ifndef ECB_MEMORY_FENCE
		1256	# define ECB_MEMORY_FENCE do { } while (0)
		1257	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		1258	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		1259	#endif
		1260
		1261	#define expect_false(cond) ecb_expect_false (cond)
		1262	#define expect_true(cond) ecb_expect_true (cond)
		1263	#define noinline ecb_noinline
		1264
482	#define inline_size static inline	1265	#define inline_size ecb_inline
483		1266
484	#if EV_FEATURE_CODE	1267	#if EV_FEATURE_CODE
485	# define inline_speed static inline	1268	# define inline_speed ecb_inline
486	#else	1269	#else
487	# define inline_speed static noinline	1270	# define inline_speed static noinline
488	#endif	1271	#endif
489		1272
490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1273	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
581		1364
582	#ifdef __linux	1365	#ifdef __linux
583	# include <sys/utsname.h>	1366	# include <sys/utsname.h>
584	#endif	1367	#endif
585		1368
586	static unsigned int noinline	1369	static unsigned int noinline ecb_cold
587	ev_linux_version (void)	1370	ev_linux_version (void)
588	{	1371	{
589	#ifdef __linux	1372	#ifdef __linux
590	unsigned int v = 0;	1373	unsigned int v = 0;
591	struct utsname buf;	1374	struct utsname buf;
…		…
620	}	1403	}
621		1404
622	/*****************************************************************************/	1405	/*****************************************************************************/
623		1406
624	#if EV_AVOID_STDIO	1407	#if EV_AVOID_STDIO
625	static void noinline	1408	static void noinline ecb_cold
626	ev_printerr (const char *msg)	1409	ev_printerr (const char *msg)
627	{	1410	{
628	write (STDERR_FILENO, msg, strlen (msg));	1411	write (STDERR_FILENO, msg, strlen (msg));
629	}	1412	}
630	#endif	1413	#endif
631		1414
632	static void (*syserr_cb)(const char *msg);	1415	static void (*syserr_cb)(const char *msg) EV_THROW;
633		1416
634	void	1417	void ecb_cold
635	ev_set_syserr_cb (void (*cb)(const char *msg))	1418	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636	{	1419	{
637	syserr_cb = cb;	1420	syserr_cb = cb;
638	}	1421	}
639		1422
640	static void noinline	1423	static void noinline ecb_cold
641	ev_syserr (const char *msg)	1424	ev_syserr (const char *msg)
642	{	1425	{
643	if (!msg)	1426	if (!msg)
644	msg = "(libev) system error";	1427	msg = "(libev) system error";
645		1428
…		…
658	abort ();	1441	abort ();
659	}	1442	}
660	}	1443	}
661		1444
662	static void *	1445	static void *
663	ev_realloc_emul (void *ptr, long size)	1446	ev_realloc_emul (void *ptr, long size) EV_THROW
664	{	1447	{
665	#if __GLIBC__
666	return realloc (ptr, size);
667	#else
668	/* some systems, notably openbsd and darwin, fail to properly	1448	/* some systems, notably openbsd and darwin, fail to properly
669	* implement realloc (x, 0) (as required by both ansi c-89 and	1449	* implement realloc (x, 0) (as required by both ansi c-89 and
670	* the single unix specification, so work around them here.	1450	* the single unix specification, so work around them here.
		1451	* recently, also (at least) fedora and debian started breaking it,
		1452	* despite documenting it otherwise.
671	*/	1453	*/
672		1454
673	if (size)	1455	if (size)
674	return realloc (ptr, size);	1456	return realloc (ptr, size);
675		1457
676	free (ptr);	1458	free (ptr);
677	return 0;	1459	return 0;
678	#endif
679	}	1460	}
680		1461
681	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1462	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682		1463
683	void	1464	void ecb_cold
684	ev_set_allocator (void *(*cb)(void *ptr, long size))	1465	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685	{	1466	{
686	alloc = cb;	1467	alloc = cb;
687	}	1468	}
688		1469
689	inline_speed void *	1470	inline_speed void *
…		…
777	#undef VAR	1558	#undef VAR
778	};	1559	};
779	#include "ev_wrap.h"	1560	#include "ev_wrap.h"
780		1561
781	static struct ev_loop default_loop_struct;	1562	static struct ev_loop default_loop_struct;
782	struct ev_loop *ev_default_loop_ptr;	1563	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783		1564
784	#else	1565	#else
785		1566
786	ev_tstamp ev_rt_now;	1567	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
787	#define VAR(name,decl) static decl;	1568	#define VAR(name,decl) static decl;
788	#include "ev_vars.h"	1569	#include "ev_vars.h"
789	#undef VAR	1570	#undef VAR
790		1571
791	static int ev_default_loop_ptr;	1572	static int ev_default_loop_ptr;
…		…
806		1587
807	/*****************************************************************************/	1588	/*****************************************************************************/
808		1589
809	#ifndef EV_HAVE_EV_TIME	1590	#ifndef EV_HAVE_EV_TIME
810	ev_tstamp	1591	ev_tstamp
811	ev_time (void)	1592	ev_time (void) EV_THROW
812	{	1593	{
813	#if EV_USE_REALTIME	1594	#if EV_USE_REALTIME
814	if (expect_true (have_realtime))	1595	if (expect_true (have_realtime))
815	{	1596	{
816	struct timespec ts;	1597	struct timespec ts;
…		…
840	return ev_time ();	1621	return ev_time ();
841	}	1622	}
842		1623
843	#if EV_MULTIPLICITY	1624	#if EV_MULTIPLICITY
844	ev_tstamp	1625	ev_tstamp
845	ev_now (EV_P)	1626	ev_now (EV_P) EV_THROW
846	{	1627	{
847	return ev_rt_now;	1628	return ev_rt_now;
848	}	1629	}
849	#endif	1630	#endif
850		1631
851	void	1632	void
852	ev_sleep (ev_tstamp delay)	1633	ev_sleep (ev_tstamp delay) EV_THROW
853	{	1634	{
854	if (delay > 0.)	1635	if (delay > 0.)
855	{	1636	{
856	#if EV_USE_NANOSLEEP	1637	#if EV_USE_NANOSLEEP
857	struct timespec ts;	1638	struct timespec ts;
858		1639
859	EV_TS_SET (ts, delay);	1640	EV_TS_SET (ts, delay);
860	nanosleep (&ts, 0);	1641	nanosleep (&ts, 0);
861	#elif defined(_WIN32)	1642	#elif defined _WIN32
862	Sleep ((unsigned long)(delay * 1e3));	1643	Sleep ((unsigned long)(delay * 1e3));
863	#else	1644	#else
864	struct timeval tv;	1645	struct timeval tv;
865		1646
866	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1647	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
885		1666
886	do	1667	do
887	ncur <<= 1;	1668	ncur <<= 1;
888	while (cnt > ncur);	1669	while (cnt > ncur);
889		1670
890	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1671	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1672	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892	{	1673	{
893	ncur *= elem;	1674	ncur *= elem;
894	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1675	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895	ncur = ncur - sizeof (void *) * 4;	1676	ncur = ncur - sizeof (void *) * 4;
…		…
897	}	1678	}
898		1679
899	return ncur;	1680	return ncur;
900	}	1681	}
901		1682
902	static noinline void *	1683	static void * noinline ecb_cold
903	array_realloc (int elem, void *base, int *cur, int cnt)	1684	array_realloc (int elem, void *base, int *cur, int cnt)
904	{	1685	{
905	*cur = array_nextsize (elem, *cur, cnt);	1686	*cur = array_nextsize (elem, *cur, cnt);
906	return ev_realloc (base, elem * *cur);	1687	return ev_realloc (base, elem * *cur);
907	}	1688	}
…		…
910	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1691	memset ((void *)(base), 0, sizeof (*(base)) * (count))
911		1692
912	#define array_needsize(type,base,cur,cnt,init) \	1693	#define array_needsize(type,base,cur,cnt,init) \
913	if (expect_false ((cnt) > (cur))) \	1694	if (expect_false ((cnt) > (cur))) \
914	{ \	1695	{ \
915	int ocur_ = (cur); \	1696	int ecb_unused ocur_ = (cur); \
916	(base) = (type *)array_realloc \	1697	(base) = (type *)array_realloc \
917	(sizeof (type), (base), &(cur), (cnt)); \	1698	(sizeof (type), (base), &(cur), (cnt)); \
918	init ((base) + (ocur_), (cur) - ocur_); \	1699	init ((base) + (ocur_), (cur) - ocur_); \
919	}	1700	}
920		1701
…		…
938	pendingcb (EV_P_ ev_prepare *w, int revents)	1719	pendingcb (EV_P_ ev_prepare *w, int revents)
939	{	1720	{
940	}	1721	}
941		1722
942	void noinline	1723	void noinline
943	ev_feed_event (EV_P_ void *w, int revents)	1724	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944	{	1725	{
945	W w_ = (W)w;	1726	W w_ = (W)w;
946	int pri = ABSPRI (w_);	1727	int pri = ABSPRI (w_);
947		1728
948	if (expect_false (w_->pending))	1729	if (expect_false (w_->pending))
…		…
952	w_->pending = ++pendingcnt [pri];	1733	w_->pending = ++pendingcnt [pri];
953	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1734	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954	pendings [pri][w_->pending - 1].w = w_;	1735	pendings [pri][w_->pending - 1].w = w_;
955	pendings [pri][w_->pending - 1].events = revents;	1736	pendings [pri][w_->pending - 1].events = revents;
956	}	1737	}
		1738
		1739	pendingpri = NUMPRI - 1;
957	}	1740	}
958		1741
959	inline_speed void	1742	inline_speed void
960	feed_reverse (EV_P_ W w)	1743	feed_reverse (EV_P_ W w)
961	{	1744	{
…		…
1007	if (expect_true (!anfd->reify))	1790	if (expect_true (!anfd->reify))
1008	fd_event_nocheck (EV_A_ fd, revents);	1791	fd_event_nocheck (EV_A_ fd, revents);
1009	}	1792	}
1010		1793
1011	void	1794	void
1012	ev_feed_fd_event (EV_P_ int fd, int revents)	1795	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013	{	1796	{
1014	if (fd >= 0 && fd < anfdmax)	1797	if (fd >= 0 && fd < anfdmax)
1015	fd_event_nocheck (EV_A_ fd, revents);	1798	fd_event_nocheck (EV_A_ fd, revents);
1016	}	1799	}
1017		1800
…		…
1090	fdchanges [fdchangecnt - 1] = fd;	1873	fdchanges [fdchangecnt - 1] = fd;
1091	}	1874	}
1092	}	1875	}
1093		1876
1094	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1877	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095	inline_speed void	1878	inline_speed void ecb_cold
1096	fd_kill (EV_P_ int fd)	1879	fd_kill (EV_P_ int fd)
1097	{	1880	{
1098	ev_io *w;	1881	ev_io *w;
1099		1882
1100	while ((w = (ev_io *)anfds [fd].head))	1883	while ((w = (ev_io *)anfds [fd].head))
…		…
1103	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1886	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104	}	1887	}
1105	}	1888	}
1106		1889
1107	/* check whether the given fd is actually valid, for error recovery */	1890	/* check whether the given fd is actually valid, for error recovery */
1108	inline_size int	1891	inline_size int ecb_cold
1109	fd_valid (int fd)	1892	fd_valid (int fd)
1110	{	1893	{
1111	#ifdef _WIN32	1894	#ifdef _WIN32
1112	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1895	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113	#else	1896	#else
1114	return fcntl (fd, F_GETFD) != -1;	1897	return fcntl (fd, F_GETFD) != -1;
1115	#endif	1898	#endif
1116	}	1899	}
1117		1900
1118	/* called on EBADF to verify fds */	1901	/* called on EBADF to verify fds */
1119	static void noinline	1902	static void noinline ecb_cold
1120	fd_ebadf (EV_P)	1903	fd_ebadf (EV_P)
1121	{	1904	{
1122	int fd;	1905	int fd;
1123		1906
1124	for (fd = 0; fd < anfdmax; ++fd)	1907	for (fd = 0; fd < anfdmax; ++fd)
…		…
1126	if (!fd_valid (fd) && errno == EBADF)	1909	if (!fd_valid (fd) && errno == EBADF)
1127	fd_kill (EV_A_ fd);	1910	fd_kill (EV_A_ fd);
1128	}	1911	}
1129		1912
1130	/* called on ENOMEM in select/poll to kill some fds and retry */	1913	/* called on ENOMEM in select/poll to kill some fds and retry */
1131	static void noinline	1914	static void noinline ecb_cold
1132	fd_enomem (EV_P)	1915	fd_enomem (EV_P)
1133	{	1916	{
1134	int fd;	1917	int fd;
1135		1918
1136	for (fd = anfdmax; fd--; )	1919	for (fd = anfdmax; fd--; )
…		…
1331		2114
1332	/*****************************************************************************/	2115	/*****************************************************************************/
1333		2116
1334	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2117	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335		2118
1336	static void noinline	2119	static void noinline ecb_cold
1337	evpipe_init (EV_P)	2120	evpipe_init (EV_P)
1338	{	2121	{
1339	if (!ev_is_active (&pipe_w))	2122	if (!ev_is_active (&pipe_w))
1340	{	2123	{
		2124	int fds [2];
		2125
1341	# if EV_USE_EVENTFD	2126	# if EV_USE_EVENTFD
		2127	fds [0] = -1;
1342	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2128	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1343	if (evfd < 0 && errno == EINVAL)	2129	if (fds [1] < 0 && errno == EINVAL)
1344	evfd = eventfd (0, 0);	2130	fds [1] = eventfd (0, 0);
1345		2131
1346	if (evfd >= 0)	2132	if (fds [1] < 0)
		2133	# endif
1347	{	2134	{
		2135	while (pipe (fds))
		2136	ev_syserr ("(libev) error creating signal/async pipe");
		2137
		2138	fd_intern (fds [0]);
		2139	}
		2140
1348	evpipe [0] = -1;	2141	evpipe [0] = fds [0];
1349	fd_intern (evfd); /* doing it twice doesn't hurt */	2142
1350	ev_io_set (&pipe_w, evfd, EV_READ);	2143	if (evpipe [1] < 0)
		2144	evpipe [1] = fds [1]; /* first call, set write fd */
		2145	else
		2146	{
		2147	/* on subsequent calls, do not change evpipe [1] */
		2148	/* so that evpipe_write can always rely on its value. */
		2149	/* this branch does not do anything sensible on windows, */
		2150	/* so must not be executed on windows */
		2151
		2152	dup2 (fds [1], evpipe [1]);
		2153	close (fds [1]);
		2154	}
		2155
		2156	fd_intern (evpipe [1]);
		2157
		2158	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2159	ev_io_start (EV_A_ &pipe_w);
		2160	ev_unref (EV_A); /* watcher should not keep loop alive */
		2161	}
		2162	}
		2163
		2164	inline_speed void
		2165	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2166	{
		2167	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2168
		2169	if (expect_true (*flag))
		2170	return;
		2171
		2172	*flag = 1;
		2173	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2174
		2175	pipe_write_skipped = 1;
		2176
		2177	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2178
		2179	if (pipe_write_wanted)
		2180	{
		2181	int old_errno;
		2182
		2183	pipe_write_skipped = 0;
		2184	ECB_MEMORY_FENCE_RELEASE;
		2185
		2186	old_errno = errno; /* save errno because write will clobber it */
		2187
		2188	#if EV_USE_EVENTFD
		2189	if (evpipe [0] < 0)
		2190	{
		2191	uint64_t counter = 1;
		2192	write (evpipe [1], &counter, sizeof (uint64_t));
1351	}	2193	}
1352	else	2194	else
1353	# endif	2195	#endif
1354	{	2196	{
1355	while (pipe (evpipe))	2197	#ifdef _WIN32
1356	ev_syserr ("(libev) error creating signal/async pipe");	2198	WSABUF buf;
1357		2199	DWORD sent;
1358	fd_intern (evpipe [0]);	2200	buf.buf = &buf;
1359	fd_intern (evpipe [1]);	2201	buf.len = 1;
1360	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2202	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		2203	#else
		2204	write (evpipe [1], &(evpipe [1]), 1);
		2205	#endif
1361	}	2206	}
1362		2207
1363	ev_io_start (EV_A_ &pipe_w);
1364	ev_unref (EV_A); /* watcher should not keep loop alive */
1365	}
1366	}
1367
1368	inline_size void
1369	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370	{
1371	if (!*flag)
1372	{
1373	*flag = 1;
1374
1375	pipe_write_skipped = 1;
1376
1377	if (pipe_write_wanted)
1378	{
1379	int old_errno = errno; /* save errno because write will clobber it */
1380	char dummy;
1381
1382	pipe_write_skipped = 0;
1383
1384	#if EV_USE_EVENTFD
1385	if (evfd >= 0)
1386	{
1387	uint64_t counter = 1;
1388	write (evfd, &counter, sizeof (uint64_t));
1389	}
1390	else
1391	#endif
1392	{
1393	/* win32 people keep sending patches that change this write() to send() */
1394	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1395	/* so when you think this write should be a send instead, please find out */
1396	/* where your send() is from - it's definitely not the microsoft send, and */
1397	/* tell me. thank you. */
1398	write (evpipe [1], &dummy, 1);
1399	}
1400
1401	errno = old_errno;	2208	errno = old_errno;
1402	}
1403	}	2209	}
1404	}	2210	}
1405		2211
1406	/* called whenever the libev signal pipe */	2212	/* called whenever the libev signal pipe */
1407	/* got some events (signal, async) */	2213	/* got some events (signal, async) */
…		…
1411	int i;	2217	int i;
1412		2218
1413	if (revents & EV_READ)	2219	if (revents & EV_READ)
1414	{	2220	{
1415	#if EV_USE_EVENTFD	2221	#if EV_USE_EVENTFD
1416	if (evfd >= 0)	2222	if (evpipe [0] < 0)
1417	{	2223	{
1418	uint64_t counter;	2224	uint64_t counter;
1419	read (evfd, &counter, sizeof (uint64_t));	2225	read (evpipe [1], &counter, sizeof (uint64_t));
1420	}	2226	}
1421	else	2227	else
1422	#endif	2228	#endif
1423	{	2229	{
1424	char dummy;	2230	char dummy[4];
1425	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2231	#ifdef _WIN32
		2232	WSABUF buf;
		2233	DWORD recvd;
		2234	DWORD flags = 0;
		2235	buf.buf = dummy;
		2236	buf.len = sizeof (dummy);
		2237	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2238	#else
1426	read (evpipe [0], &dummy, 1);	2239	read (evpipe [0], &dummy, sizeof (dummy));
		2240	#endif
1427	}	2241	}
1428	}	2242	}
1429		2243
1430	pipe_write_skipped = 0;	2244	pipe_write_skipped = 0;
		2245
		2246	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1431		2247
1432	#if EV_SIGNAL_ENABLE	2248	#if EV_SIGNAL_ENABLE
1433	if (sig_pending)	2249	if (sig_pending)
1434	{	2250	{
1435	sig_pending = 0;	2251	sig_pending = 0;
		2252
		2253	ECB_MEMORY_FENCE;
1436		2254
1437	for (i = EV_NSIG - 1; i--; )	2255	for (i = EV_NSIG - 1; i--; )
1438	if (expect_false (signals [i].pending))	2256	if (expect_false (signals [i].pending))
1439	ev_feed_signal_event (EV_A_ i + 1);	2257	ev_feed_signal_event (EV_A_ i + 1);
1440	}	2258	}
…		…
1442		2260
1443	#if EV_ASYNC_ENABLE	2261	#if EV_ASYNC_ENABLE
1444	if (async_pending)	2262	if (async_pending)
1445	{	2263	{
1446	async_pending = 0;	2264	async_pending = 0;
		2265
		2266	ECB_MEMORY_FENCE;
1447		2267
1448	for (i = asynccnt; i--; )	2268	for (i = asynccnt; i--; )
1449	if (asyncs [i]->sent)	2269	if (asyncs [i]->sent)
1450	{	2270	{
1451	asyncs [i]->sent = 0;	2271	asyncs [i]->sent = 0;
		2272	ECB_MEMORY_FENCE_RELEASE;
1452	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2273	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1453	}	2274	}
1454	}	2275	}
1455	#endif	2276	#endif
1456	}	2277	}
1457		2278
1458	/*****************************************************************************/	2279	/*****************************************************************************/
1459		2280
1460	void	2281	void
1461	ev_feed_signal (int signum)	2282	ev_feed_signal (int signum) EV_THROW
1462	{	2283	{
1463	#if EV_MULTIPLICITY	2284	#if EV_MULTIPLICITY
		2285	EV_P;
		2286	ECB_MEMORY_FENCE_ACQUIRE;
1464	EV_P = signals [signum - 1].loop;	2287	EV_A = signals [signum - 1].loop;
1465		2288
1466	if (!EV_A)	2289	if (!EV_A)
1467	return;	2290	return;
1468	#endif	2291	#endif
1469		2292
1470	evpipe_init (EV_A);
1471
1472	signals [signum - 1].pending = 1;	2293	signals [signum - 1].pending = 1;
1473	evpipe_write (EV_A_ &sig_pending);	2294	evpipe_write (EV_A_ &sig_pending);
1474	}	2295	}
1475		2296
1476	static void	2297	static void
…		…
1482		2303
1483	ev_feed_signal (signum);	2304	ev_feed_signal (signum);
1484	}	2305	}
1485		2306
1486	void noinline	2307	void noinline
1487	ev_feed_signal_event (EV_P_ int signum)	2308	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1488	{	2309	{
1489	WL w;	2310	WL w;
1490		2311
1491	if (expect_false (signum <= 0 || signum > EV_NSIG))	2312	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1492	return;	2313	return;
1493		2314
1494	--signum;	2315	--signum;
1495		2316
1496	#if EV_MULTIPLICITY	2317	#if EV_MULTIPLICITY
…		…
1500	if (expect_false (signals [signum].loop != EV_A))	2321	if (expect_false (signals [signum].loop != EV_A))
1501	return;	2322	return;
1502	#endif	2323	#endif
1503		2324
1504	signals [signum].pending = 0;	2325	signals [signum].pending = 0;
		2326	ECB_MEMORY_FENCE_RELEASE;
1505		2327
1506	for (w = signals [signum].head; w; w = w->next)	2328	for (w = signals [signum].head; w; w = w->next)
1507	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2329	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1508	}	2330	}
1509		2331
…		…
1607	#endif	2429	#endif
1608	#if EV_USE_SELECT	2430	#if EV_USE_SELECT
1609	# include "ev_select.c"	2431	# include "ev_select.c"
1610	#endif	2432	#endif
1611		2433
1612	int	2434	int ecb_cold
1613	ev_version_major (void)	2435	ev_version_major (void) EV_THROW
1614	{	2436	{
1615	return EV_VERSION_MAJOR;	2437	return EV_VERSION_MAJOR;
1616	}	2438	}
1617		2439
1618	int	2440	int ecb_cold
1619	ev_version_minor (void)	2441	ev_version_minor (void) EV_THROW
1620	{	2442	{
1621	return EV_VERSION_MINOR;	2443	return EV_VERSION_MINOR;
1622	}	2444	}
1623		2445
1624	/* return true if we are running with elevated privileges and should ignore env variables */	2446	/* return true if we are running with elevated privileges and should ignore env variables */
1625	int inline_size	2447	int inline_size ecb_cold
1626	enable_secure (void)	2448	enable_secure (void)
1627	{	2449	{
1628	#ifdef _WIN32	2450	#ifdef _WIN32
1629	return 0;	2451	return 0;
1630	#else	2452	#else
1631	return getuid () != geteuid ()	2453	return getuid () != geteuid ()
1632	|| getgid () != getegid ();	2454	|| getgid () != getegid ();
1633	#endif	2455	#endif
1634	}	2456	}
1635		2457
1636	unsigned int	2458	unsigned int ecb_cold
1637	ev_supported_backends (void)	2459	ev_supported_backends (void) EV_THROW
1638	{	2460	{
1639	unsigned int flags = 0;	2461	unsigned int flags = 0;
1640		2462
1641	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2463	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1642	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2464	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1645	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2467	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1646		2468
1647	return flags;	2469	return flags;
1648	}	2470	}
1649		2471
1650	unsigned int	2472	unsigned int ecb_cold
1651	ev_recommended_backends (void)	2473	ev_recommended_backends (void) EV_THROW
1652	{	2474	{
1653	unsigned int flags = ev_supported_backends ();	2475	unsigned int flags = ev_supported_backends ();
1654		2476
1655	#ifndef __NetBSD__	2477	#ifndef __NetBSD__
1656	/* kqueue is borked on everything but netbsd apparently */	2478	/* kqueue is borked on everything but netbsd apparently */
…		…
1667	#endif	2489	#endif
1668		2490
1669	return flags;	2491	return flags;
1670	}	2492	}
1671		2493
1672	unsigned int	2494	unsigned int ecb_cold
1673	ev_embeddable_backends (void)	2495	ev_embeddable_backends (void) EV_THROW
1674	{	2496	{
1675	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2497	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1676		2498
1677	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2499	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1678	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2500	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1680		2502
1681	return flags;	2503	return flags;
1682	}	2504	}
1683		2505
1684	unsigned int	2506	unsigned int
1685	ev_backend (EV_P)	2507	ev_backend (EV_P) EV_THROW
1686	{	2508	{
1687	return backend;	2509	return backend;
1688	}	2510	}
1689		2511
1690	#if EV_FEATURE_API	2512	#if EV_FEATURE_API
1691	unsigned int	2513	unsigned int
1692	ev_iteration (EV_P)	2514	ev_iteration (EV_P) EV_THROW
1693	{	2515	{
1694	return loop_count;	2516	return loop_count;
1695	}	2517	}
1696		2518
1697	unsigned int	2519	unsigned int
1698	ev_depth (EV_P)	2520	ev_depth (EV_P) EV_THROW
1699	{	2521	{
1700	return loop_depth;	2522	return loop_depth;
1701	}	2523	}
1702		2524
1703	void	2525	void
1704	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2526	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1705	{	2527	{
1706	io_blocktime = interval;	2528	io_blocktime = interval;
1707	}	2529	}
1708		2530
1709	void	2531	void
1710	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2532	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1711	{	2533	{
1712	timeout_blocktime = interval;	2534	timeout_blocktime = interval;
1713	}	2535	}
1714		2536
1715	void	2537	void
1716	ev_set_userdata (EV_P_ void *data)	2538	ev_set_userdata (EV_P_ void *data) EV_THROW
1717	{	2539	{
1718	userdata = data;	2540	userdata = data;
1719	}	2541	}
1720		2542
1721	void *	2543	void *
1722	ev_userdata (EV_P)	2544	ev_userdata (EV_P) EV_THROW
1723	{	2545	{
1724	return userdata;	2546	return userdata;
1725	}	2547	}
1726		2548
		2549	void
1727	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2550	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1728	{	2551	{
1729	invoke_cb = invoke_pending_cb;	2552	invoke_cb = invoke_pending_cb;
1730	}	2553	}
1731		2554
		2555	void
1732	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2556	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1733	{	2557	{
1734	release_cb = release;	2558	release_cb = release;
1735	acquire_cb = acquire;	2559	acquire_cb = acquire;
1736	}	2560	}
1737	#endif	2561	#endif
1738		2562
1739	/* initialise a loop structure, must be zero-initialised */	2563	/* initialise a loop structure, must be zero-initialised */
1740	static void noinline	2564	static void noinline ecb_cold
1741	loop_init (EV_P_ unsigned int flags)	2565	loop_init (EV_P_ unsigned int flags) EV_THROW
1742	{	2566	{
1743	if (!backend)	2567	if (!backend)
1744	{	2568	{
1745	origflags = flags;	2569	origflags = flags;
1746		2570
…		…
1791	#if EV_ASYNC_ENABLE	2615	#if EV_ASYNC_ENABLE
1792	async_pending = 0;	2616	async_pending = 0;
1793	#endif	2617	#endif
1794	pipe_write_skipped = 0;	2618	pipe_write_skipped = 0;
1795	pipe_write_wanted = 0;	2619	pipe_write_wanted = 0;
		2620	evpipe [0] = -1;
		2621	evpipe [1] = -1;
1796	#if EV_USE_INOTIFY	2622	#if EV_USE_INOTIFY
1797	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2623	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1798	#endif	2624	#endif
1799	#if EV_USE_SIGNALFD	2625	#if EV_USE_SIGNALFD
1800	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2626	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
1830	#endif	2656	#endif
1831	}	2657	}
1832	}	2658	}
1833		2659
1834	/* free up a loop structure */	2660	/* free up a loop structure */
1835	void	2661	void ecb_cold
1836	ev_loop_destroy (EV_P)	2662	ev_loop_destroy (EV_P)
1837	{	2663	{
1838	int i;	2664	int i;
1839		2665
1840	#if EV_MULTIPLICITY	2666	#if EV_MULTIPLICITY
…		…
1851	EV_INVOKE_PENDING;	2677	EV_INVOKE_PENDING;
1852	}	2678	}
1853	#endif	2679	#endif
1854		2680
1855	#if EV_CHILD_ENABLE	2681	#if EV_CHILD_ENABLE
1856	if (ev_is_active (&childev))	2682	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1857	{	2683	{
1858	ev_ref (EV_A); /* child watcher */	2684	ev_ref (EV_A); /* child watcher */
1859	ev_signal_stop (EV_A_ &childev);	2685	ev_signal_stop (EV_A_ &childev);
1860	}	2686	}
1861	#endif	2687	#endif
…		…
1863	if (ev_is_active (&pipe_w))	2689	if (ev_is_active (&pipe_w))
1864	{	2690	{
1865	/*ev_ref (EV_A);*/	2691	/*ev_ref (EV_A);*/
1866	/*ev_io_stop (EV_A_ &pipe_w);*/	2692	/*ev_io_stop (EV_A_ &pipe_w);*/
1867		2693
1868	#if EV_USE_EVENTFD
1869	if (evfd >= 0)
1870	close (evfd);
1871	#endif
1872
1873	if (evpipe [0] >= 0)
1874	{
1875	EV_WIN32_CLOSE_FD (evpipe [0]);	2694	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1876	EV_WIN32_CLOSE_FD (evpipe [1]);	2695	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1877	}
1878	}	2696	}
1879		2697
1880	#if EV_USE_SIGNALFD	2698	#if EV_USE_SIGNALFD
1881	if (ev_is_active (&sigfd_w))	2699	if (ev_is_active (&sigfd_w))
1882	close (sigfd);	2700	close (sigfd);
…		…
1968	#endif	2786	#endif
1969	#if EV_USE_INOTIFY	2787	#if EV_USE_INOTIFY
1970	infy_fork (EV_A);	2788	infy_fork (EV_A);
1971	#endif	2789	#endif
1972		2790
		2791	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1973	if (ev_is_active (&pipe_w))	2792	if (ev_is_active (&pipe_w))
1974	{	2793	{
1975	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2794	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1976		2795
1977	ev_ref (EV_A);	2796	ev_ref (EV_A);
1978	ev_io_stop (EV_A_ &pipe_w);	2797	ev_io_stop (EV_A_ &pipe_w);
1979		2798
1980	#if EV_USE_EVENTFD
1981	if (evfd >= 0)
1982	close (evfd);
1983	#endif
1984
1985	if (evpipe [0] >= 0)	2799	if (evpipe [0] >= 0)
1986	{
1987	EV_WIN32_CLOSE_FD (evpipe [0]);	2800	EV_WIN32_CLOSE_FD (evpipe [0]);
1988	EV_WIN32_CLOSE_FD (evpipe [1]);
1989	}
1990		2801
1991	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1992	evpipe_init (EV_A);	2802	evpipe_init (EV_A);
1993	/* now iterate over everything, in case we missed something */	2803	/* iterate over everything, in case we missed something before */
1994	pipecb (EV_A_ &pipe_w, EV_READ);	2804	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1995	#endif
1996	}	2805	}
		2806	#endif
1997		2807
1998	postfork = 0;	2808	postfork = 0;
1999	}	2809	}
2000		2810
2001	#if EV_MULTIPLICITY	2811	#if EV_MULTIPLICITY
2002		2812
2003	struct ev_loop *	2813	struct ev_loop * ecb_cold
2004	ev_loop_new (unsigned int flags)	2814	ev_loop_new (unsigned int flags) EV_THROW
2005	{	2815	{
2006	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2816	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2007		2817
2008	memset (EV_A, 0, sizeof (struct ev_loop));	2818	memset (EV_A, 0, sizeof (struct ev_loop));
2009	loop_init (EV_A_ flags);	2819	loop_init (EV_A_ flags);
…		…
2016	}	2826	}
2017		2827
2018	#endif /* multiplicity */	2828	#endif /* multiplicity */
2019		2829
2020	#if EV_VERIFY	2830	#if EV_VERIFY
2021	static void noinline	2831	static void noinline ecb_cold
2022	verify_watcher (EV_P_ W w)	2832	verify_watcher (EV_P_ W w)
2023	{	2833	{
2024	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2834	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2025		2835
2026	if (w->pending)	2836	if (w->pending)
2027	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2837	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2028	}	2838	}
2029		2839
2030	static void noinline	2840	static void noinline ecb_cold
2031	verify_heap (EV_P_ ANHE *heap, int N)	2841	verify_heap (EV_P_ ANHE *heap, int N)
2032	{	2842	{
2033	int i;	2843	int i;
2034		2844
2035	for (i = HEAP0; i < N + HEAP0; ++i)	2845	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2040		2850
2041	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2851	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2042	}	2852	}
2043	}	2853	}
2044		2854
2045	static void noinline	2855	static void noinline ecb_cold
2046	array_verify (EV_P_ W *ws, int cnt)	2856	array_verify (EV_P_ W *ws, int cnt)
2047	{	2857	{
2048	while (cnt--)	2858	while (cnt--)
2049	{	2859	{
2050	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2860	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2052	}	2862	}
2053	}	2863	}
2054	#endif	2864	#endif
2055		2865
2056	#if EV_FEATURE_API	2866	#if EV_FEATURE_API
2057	void	2867	void ecb_cold
2058	ev_verify (EV_P)	2868	ev_verify (EV_P) EV_THROW
2059	{	2869	{
2060	#if EV_VERIFY	2870	#if EV_VERIFY
2061	int i;	2871	int i;
2062	WL w;	2872	WL w, w2;
2063		2873
2064	assert (activecnt >= -1);	2874	assert (activecnt >= -1);
2065		2875
2066	assert (fdchangemax >= fdchangecnt);	2876	assert (fdchangemax >= fdchangecnt);
2067	for (i = 0; i < fdchangecnt; ++i)	2877	for (i = 0; i < fdchangecnt; ++i)
2068	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2878	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2069		2879
2070	assert (anfdmax >= 0);	2880	assert (anfdmax >= 0);
2071	for (i = 0; i < anfdmax; ++i)	2881	for (i = 0; i < anfdmax; ++i)
		2882	{
		2883	int j = 0;
		2884
2072	for (w = anfds [i].head; w; w = w->next)	2885	for (w = w2 = anfds [i].head; w; w = w->next)
2073	{	2886	{
2074	verify_watcher (EV_A_ (W)w);	2887	verify_watcher (EV_A_ (W)w);
		2888
		2889	if (j++ & 1)
		2890	{
		2891	assert (("libev: io watcher list contains a loop", w != w2));
		2892	w2 = w2->next;
		2893	}
		2894
2075	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2895	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2076	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2896	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2077	}	2897	}
		2898	}
2078		2899
2079	assert (timermax >= timercnt);	2900	assert (timermax >= timercnt);
2080	verify_heap (EV_A_ timers, timercnt);	2901	verify_heap (EV_A_ timers, timercnt);
2081		2902
2082	#if EV_PERIODIC_ENABLE	2903	#if EV_PERIODIC_ENABLE
…		…
2128	#endif	2949	#endif
2129	}	2950	}
2130	#endif	2951	#endif
2131		2952
2132	#if EV_MULTIPLICITY	2953	#if EV_MULTIPLICITY
2133	struct ev_loop *	2954	struct ev_loop * ecb_cold
2134	#else	2955	#else
2135	int	2956	int
2136	#endif	2957	#endif
2137	ev_default_loop (unsigned int flags)	2958	ev_default_loop (unsigned int flags) EV_THROW
2138	{	2959	{
2139	if (!ev_default_loop_ptr)	2960	if (!ev_default_loop_ptr)
2140	{	2961	{
2141	#if EV_MULTIPLICITY	2962	#if EV_MULTIPLICITY
2142	EV_P = ev_default_loop_ptr = &default_loop_struct;	2963	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2161		2982
2162	return ev_default_loop_ptr;	2983	return ev_default_loop_ptr;
2163	}	2984	}
2164		2985
2165	void	2986	void
2166	ev_loop_fork (EV_P)	2987	ev_loop_fork (EV_P) EV_THROW
2167	{	2988	{
2168	postfork = 1; /* must be in line with ev_default_fork */	2989	postfork = 1;
2169	}	2990	}
2170		2991
2171	/*****************************************************************************/	2992	/*****************************************************************************/
2172		2993
2173	void	2994	void
…		…
2175	{	2996	{
2176	EV_CB_INVOKE ((W)w, revents);	2997	EV_CB_INVOKE ((W)w, revents);
2177	}	2998	}
2178		2999
2179	unsigned int	3000	unsigned int
2180	ev_pending_count (EV_P)	3001	ev_pending_count (EV_P) EV_THROW
2181	{	3002	{
2182	int pri;	3003	int pri;
2183	unsigned int count = 0;	3004	unsigned int count = 0;
2184		3005
2185	for (pri = NUMPRI; pri--; )	3006	for (pri = NUMPRI; pri--; )
…		…
2189	}	3010	}
2190		3011
2191	void noinline	3012	void noinline
2192	ev_invoke_pending (EV_P)	3013	ev_invoke_pending (EV_P)
2193	{	3014	{
2194	int pri;	3015	pendingpri = NUMPRI;
2195		3016
2196	for (pri = NUMPRI; pri--; )	3017	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		3018	{
		3019	--pendingpri;
		3020
2197	while (pendingcnt [pri])	3021	while (pendingcnt [pendingpri])
2198	{	3022	{
2199	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	3023	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2200		3024
2201	p->w->pending = 0;	3025	p->w->pending = 0;
2202	EV_CB_INVOKE (p->w, p->events);	3026	EV_CB_INVOKE (p->w, p->events);
2203	EV_FREQUENT_CHECK;	3027	EV_FREQUENT_CHECK;
2204	}	3028	}
		3029	}
2205	}	3030	}
2206		3031
2207	#if EV_IDLE_ENABLE	3032	#if EV_IDLE_ENABLE
2208	/* make idle watchers pending. this handles the "call-idle */	3033	/* make idle watchers pending. this handles the "call-idle */
2209	/* only when higher priorities are idle" logic */	3034	/* only when higher priorities are idle" logic */
…		…
2299	{	3124	{
2300	EV_FREQUENT_CHECK;	3125	EV_FREQUENT_CHECK;
2301		3126
2302	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3127	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2303	{	3128	{
2304	int feed_count = 0;
2305
2306	do	3129	do
2307	{	3130	{
2308	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3131	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2309		3132
2310	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3133	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2337	}	3160	}
2338	}	3161	}
2339		3162
2340	/* simply recalculate all periodics */	3163	/* simply recalculate all periodics */
2341	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3164	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2342	static void noinline	3165	static void noinline ecb_cold
2343	periodics_reschedule (EV_P)	3166	periodics_reschedule (EV_P)
2344	{	3167	{
2345	int i;	3168	int i;
2346		3169
2347	/* adjust periodics after time jump */	3170	/* adjust periodics after time jump */
…		…
2360	reheap (periodics, periodiccnt);	3183	reheap (periodics, periodiccnt);
2361	}	3184	}
2362	#endif	3185	#endif
2363		3186
2364	/* adjust all timers by a given offset */	3187	/* adjust all timers by a given offset */
2365	static void noinline	3188	static void noinline ecb_cold
2366	timers_reschedule (EV_P_ ev_tstamp adjust)	3189	timers_reschedule (EV_P_ ev_tstamp adjust)
2367	{	3190	{
2368	int i;	3191	int i;
2369		3192
2370	for (i = 0; i < timercnt; ++i)	3193	for (i = 0; i < timercnt; ++i)
…		…
2444		3267
2445	mn_now = ev_rt_now;	3268	mn_now = ev_rt_now;
2446	}	3269	}
2447	}	3270	}
2448		3271
2449	void	3272	int
2450	ev_run (EV_P_ int flags)	3273	ev_run (EV_P_ int flags)
2451	{	3274	{
2452	#if EV_FEATURE_API	3275	#if EV_FEATURE_API
2453	++loop_depth;	3276	++loop_depth;
2454	#endif	3277	#endif
…		…
2515	time_update (EV_A_ 1e100);	3338	time_update (EV_A_ 1e100);
2516		3339
2517	/* from now on, we want a pipe-wake-up */	3340	/* from now on, we want a pipe-wake-up */
2518	pipe_write_wanted = 1;	3341	pipe_write_wanted = 1;
2519		3342
		3343	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3344
2520	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3345	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2521	{	3346	{
2522	waittime = MAX_BLOCKTIME;	3347	waittime = MAX_BLOCKTIME;
2523		3348
2524	if (timercnt)	3349	if (timercnt)
…		…
2565	#endif	3390	#endif
2566	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3391	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2567	backend_poll (EV_A_ waittime);	3392	backend_poll (EV_A_ waittime);
2568	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3393	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2569		3394
2570	pipe_write_wanted = 0;	3395	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2571		3396
		3397	ECB_MEMORY_FENCE_ACQUIRE;
2572	if (pipe_write_skipped)	3398	if (pipe_write_skipped)
2573	{	3399	{
2574	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3400	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2575	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3401	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2576	}	3402	}
…		…
2609	loop_done = EVBREAK_CANCEL;	3435	loop_done = EVBREAK_CANCEL;
2610		3436
2611	#if EV_FEATURE_API	3437	#if EV_FEATURE_API
2612	--loop_depth;	3438	--loop_depth;
2613	#endif	3439	#endif
		3440
		3441	return activecnt;
2614	}	3442	}
2615		3443
2616	void	3444	void
2617	ev_break (EV_P_ int how)	3445	ev_break (EV_P_ int how) EV_THROW
2618	{	3446	{
2619	loop_done = how;	3447	loop_done = how;
2620	}	3448	}
2621		3449
2622	void	3450	void
2623	ev_ref (EV_P)	3451	ev_ref (EV_P) EV_THROW
2624	{	3452	{
2625	++activecnt;	3453	++activecnt;
2626	}	3454	}
2627		3455
2628	void	3456	void
2629	ev_unref (EV_P)	3457	ev_unref (EV_P) EV_THROW
2630	{	3458	{
2631	--activecnt;	3459	--activecnt;
2632	}	3460	}
2633		3461
2634	void	3462	void
2635	ev_now_update (EV_P)	3463	ev_now_update (EV_P) EV_THROW
2636	{	3464	{
2637	time_update (EV_A_ 1e100);	3465	time_update (EV_A_ 1e100);
2638	}	3466	}
2639		3467
2640	void	3468	void
2641	ev_suspend (EV_P)	3469	ev_suspend (EV_P) EV_THROW
2642	{	3470	{
2643	ev_now_update (EV_A);	3471	ev_now_update (EV_A);
2644	}	3472	}
2645		3473
2646	void	3474	void
2647	ev_resume (EV_P)	3475	ev_resume (EV_P) EV_THROW
2648	{	3476	{
2649	ev_tstamp mn_prev = mn_now;	3477	ev_tstamp mn_prev = mn_now;
2650		3478
2651	ev_now_update (EV_A);	3479	ev_now_update (EV_A);
2652	timers_reschedule (EV_A_ mn_now - mn_prev);	3480	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2691	w->pending = 0;	3519	w->pending = 0;
2692	}	3520	}
2693	}	3521	}
2694		3522
2695	int	3523	int
2696	ev_clear_pending (EV_P_ void *w)	3524	ev_clear_pending (EV_P_ void *w) EV_THROW
2697	{	3525	{
2698	W w_ = (W)w;	3526	W w_ = (W)w;
2699	int pending = w_->pending;	3527	int pending = w_->pending;
2700		3528
2701	if (expect_true (pending))	3529	if (expect_true (pending))
…		…
2734	}	3562	}
2735		3563
2736	/*****************************************************************************/	3564	/*****************************************************************************/
2737		3565
2738	void noinline	3566	void noinline
2739	ev_io_start (EV_P_ ev_io *w)	3567	ev_io_start (EV_P_ ev_io *w) EV_THROW
2740	{	3568	{
2741	int fd = w->fd;	3569	int fd = w->fd;
2742		3570
2743	if (expect_false (ev_is_active (w)))	3571	if (expect_false (ev_is_active (w)))
2744	return;	3572	return;
…		…
2750		3578
2751	ev_start (EV_A_ (W)w, 1);	3579	ev_start (EV_A_ (W)w, 1);
2752	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3580	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2753	wlist_add (&anfds[fd].head, (WL)w);	3581	wlist_add (&anfds[fd].head, (WL)w);
2754		3582
		3583	/* common bug, apparently */
		3584	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3585
2755	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3586	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2756	w->events &= ~EV__IOFDSET;	3587	w->events &= ~EV__IOFDSET;
2757		3588
2758	EV_FREQUENT_CHECK;	3589	EV_FREQUENT_CHECK;
2759	}	3590	}
2760		3591
2761	void noinline	3592	void noinline
2762	ev_io_stop (EV_P_ ev_io *w)	3593	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2763	{	3594	{
2764	clear_pending (EV_A_ (W)w);	3595	clear_pending (EV_A_ (W)w);
2765	if (expect_false (!ev_is_active (w)))	3596	if (expect_false (!ev_is_active (w)))
2766	return;	3597	return;
2767		3598
…		…
2776		3607
2777	EV_FREQUENT_CHECK;	3608	EV_FREQUENT_CHECK;
2778	}	3609	}
2779		3610
2780	void noinline	3611	void noinline
2781	ev_timer_start (EV_P_ ev_timer *w)	3612	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2782	{	3613	{
2783	if (expect_false (ev_is_active (w)))	3614	if (expect_false (ev_is_active (w)))
2784	return;	3615	return;
2785		3616
2786	ev_at (w) += mn_now;	3617	ev_at (w) += mn_now;
…		…
2800		3631
2801	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3632	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2802	}	3633	}
2803		3634
2804	void noinline	3635	void noinline
2805	ev_timer_stop (EV_P_ ev_timer *w)	3636	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2806	{	3637	{
2807	clear_pending (EV_A_ (W)w);	3638	clear_pending (EV_A_ (W)w);
2808	if (expect_false (!ev_is_active (w)))	3639	if (expect_false (!ev_is_active (w)))
2809	return;	3640	return;
2810		3641
…		…
2830		3661
2831	EV_FREQUENT_CHECK;	3662	EV_FREQUENT_CHECK;
2832	}	3663	}
2833		3664
2834	void noinline	3665	void noinline
2835	ev_timer_again (EV_P_ ev_timer *w)	3666	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2836	{	3667	{
2837	EV_FREQUENT_CHECK;	3668	EV_FREQUENT_CHECK;
		3669
		3670	clear_pending (EV_A_ (W)w);
2838		3671
2839	if (ev_is_active (w))	3672	if (ev_is_active (w))
2840	{	3673	{
2841	if (w->repeat)	3674	if (w->repeat)
2842	{	3675	{
…		…
2855		3688
2856	EV_FREQUENT_CHECK;	3689	EV_FREQUENT_CHECK;
2857	}	3690	}
2858		3691
2859	ev_tstamp	3692	ev_tstamp
2860	ev_timer_remaining (EV_P_ ev_timer *w)	3693	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2861	{	3694	{
2862	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3695	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2863	}	3696	}
2864		3697
2865	#if EV_PERIODIC_ENABLE	3698	#if EV_PERIODIC_ENABLE
2866	void noinline	3699	void noinline
2867	ev_periodic_start (EV_P_ ev_periodic *w)	3700	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2868	{	3701	{
2869	if (expect_false (ev_is_active (w)))	3702	if (expect_false (ev_is_active (w)))
2870	return;	3703	return;
2871		3704
2872	if (w->reschedule_cb)	3705	if (w->reschedule_cb)
…		…
2892		3725
2893	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3726	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2894	}	3727	}
2895		3728
2896	void noinline	3729	void noinline
2897	ev_periodic_stop (EV_P_ ev_periodic *w)	3730	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2898	{	3731	{
2899	clear_pending (EV_A_ (W)w);	3732	clear_pending (EV_A_ (W)w);
2900	if (expect_false (!ev_is_active (w)))	3733	if (expect_false (!ev_is_active (w)))
2901	return;	3734	return;
2902		3735
…		…
2920		3753
2921	EV_FREQUENT_CHECK;	3754	EV_FREQUENT_CHECK;
2922	}	3755	}
2923		3756
2924	void noinline	3757	void noinline
2925	ev_periodic_again (EV_P_ ev_periodic *w)	3758	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2926	{	3759	{
2927	/* TODO: use adjustheap and recalculation */	3760	/* TODO: use adjustheap and recalculation */
2928	ev_periodic_stop (EV_A_ w);	3761	ev_periodic_stop (EV_A_ w);
2929	ev_periodic_start (EV_A_ w);	3762	ev_periodic_start (EV_A_ w);
2930	}	3763	}
…		…
2935	#endif	3768	#endif
2936		3769
2937	#if EV_SIGNAL_ENABLE	3770	#if EV_SIGNAL_ENABLE
2938		3771
2939	void noinline	3772	void noinline
2940	ev_signal_start (EV_P_ ev_signal *w)	3773	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2941	{	3774	{
2942	if (expect_false (ev_is_active (w)))	3775	if (expect_false (ev_is_active (w)))
2943	return;	3776	return;
2944		3777
2945	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3778	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
2947	#if EV_MULTIPLICITY	3780	#if EV_MULTIPLICITY
2948	assert (("libev: a signal must not be attached to two different loops",	3781	assert (("libev: a signal must not be attached to two different loops",
2949	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3782	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2950		3783
2951	signals [w->signum - 1].loop = EV_A;	3784	signals [w->signum - 1].loop = EV_A;
		3785	ECB_MEMORY_FENCE_RELEASE;
2952	#endif	3786	#endif
2953		3787
2954	EV_FREQUENT_CHECK;	3788	EV_FREQUENT_CHECK;
2955		3789
2956	#if EV_USE_SIGNALFD	3790	#if EV_USE_SIGNALFD
…		…
3016		3850
3017	EV_FREQUENT_CHECK;	3851	EV_FREQUENT_CHECK;
3018	}	3852	}
3019		3853
3020	void noinline	3854	void noinline
3021	ev_signal_stop (EV_P_ ev_signal *w)	3855	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3022	{	3856	{
3023	clear_pending (EV_A_ (W)w);	3857	clear_pending (EV_A_ (W)w);
3024	if (expect_false (!ev_is_active (w)))	3858	if (expect_false (!ev_is_active (w)))
3025	return;	3859	return;
3026		3860
…		…
3057	#endif	3891	#endif
3058		3892
3059	#if EV_CHILD_ENABLE	3893	#if EV_CHILD_ENABLE
3060		3894
3061	void	3895	void
3062	ev_child_start (EV_P_ ev_child *w)	3896	ev_child_start (EV_P_ ev_child *w) EV_THROW
3063	{	3897	{
3064	#if EV_MULTIPLICITY	3898	#if EV_MULTIPLICITY
3065	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3899	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3066	#endif	3900	#endif
3067	if (expect_false (ev_is_active (w)))	3901	if (expect_false (ev_is_active (w)))
…		…
3074		3908
3075	EV_FREQUENT_CHECK;	3909	EV_FREQUENT_CHECK;
3076	}	3910	}
3077		3911
3078	void	3912	void
3079	ev_child_stop (EV_P_ ev_child *w)	3913	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3080	{	3914	{
3081	clear_pending (EV_A_ (W)w);	3915	clear_pending (EV_A_ (W)w);
3082	if (expect_false (!ev_is_active (w)))	3916	if (expect_false (!ev_is_active (w)))
3083	return;	3917	return;
3084		3918
…		…
3111	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3945	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3112		3946
3113	static void noinline	3947	static void noinline
3114	infy_add (EV_P_ ev_stat *w)	3948	infy_add (EV_P_ ev_stat *w)
3115	{	3949	{
3116	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);	3950	w->wd = inotify_add_watch (fs_fd, w->path,
		3951	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3952	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3953	| IN_DONT_FOLLOW | IN_MASK_ADD);
3117		3954
3118	if (w->wd >= 0)	3955	if (w->wd >= 0)
3119	{	3956	{
3120	struct statfs sfs;	3957	struct statfs sfs;
3121		3958
…		…
3125		3962
3126	if (!fs_2625)	3963	if (!fs_2625)
3127	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3964	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3128	else if (!statfs (w->path, &sfs)	3965	else if (!statfs (w->path, &sfs)
3129	&& (sfs.f_type == 0x1373 /* devfs */	3966	&& (sfs.f_type == 0x1373 /* devfs */
		3967	|| sfs.f_type == 0x4006 /* fat */
		3968	|| sfs.f_type == 0x4d44 /* msdos */
3130	|| sfs.f_type == 0xEF53 /* ext2/3 */	3969	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3970	|| sfs.f_type == 0x72b6 /* jffs2 */
		3971	|| sfs.f_type == 0x858458f6 /* ramfs */
		3972	|| sfs.f_type == 0x5346544e /* ntfs */
3131	|| sfs.f_type == 0x3153464a /* jfs */	3973	|| sfs.f_type == 0x3153464a /* jfs */
		3974	|| sfs.f_type == 0x9123683e /* btrfs */
3132	|| sfs.f_type == 0x52654973 /* reiser3 */	3975	|| sfs.f_type == 0x52654973 /* reiser3 */
3133	|| sfs.f_type == 0x01021994 /* tempfs */	3976	|| sfs.f_type == 0x01021994 /* tmpfs */
3134	|| sfs.f_type == 0x58465342 /* xfs */))	3977	|| sfs.f_type == 0x58465342 /* xfs */))
3135	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3978	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3136	else	3979	else
3137	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3980	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3138	}	3981	}
…		…
3236	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4079	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3237	ofs += sizeof (struct inotify_event) + ev->len;	4080	ofs += sizeof (struct inotify_event) + ev->len;
3238	}	4081	}
3239	}	4082	}
3240		4083
3241	inline_size void	4084	inline_size void ecb_cold
3242	ev_check_2625 (EV_P)	4085	ev_check_2625 (EV_P)
3243	{	4086	{
3244	/* kernels < 2.6.25 are borked	4087	/* kernels < 2.6.25 are borked
3245	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4088	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3246	*/	4089	*/
…		…
3251	}	4094	}
3252		4095
3253	inline_size int	4096	inline_size int
3254	infy_newfd (void)	4097	infy_newfd (void)
3255	{	4098	{
3256	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4099	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3257	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4100	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3258	if (fd >= 0)	4101	if (fd >= 0)
3259	return fd;	4102	return fd;
3260	#endif	4103	#endif
3261	return inotify_init ();	4104	return inotify_init ();
…		…
3336	#else	4179	#else
3337	# define EV_LSTAT(p,b) lstat (p, b)	4180	# define EV_LSTAT(p,b) lstat (p, b)
3338	#endif	4181	#endif
3339		4182
3340	void	4183	void
3341	ev_stat_stat (EV_P_ ev_stat *w)	4184	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3342	{	4185	{
3343	if (lstat (w->path, &w->attr) < 0)	4186	if (lstat (w->path, &w->attr) < 0)
3344	w->attr.st_nlink = 0;	4187	w->attr.st_nlink = 0;
3345	else if (!w->attr.st_nlink)	4188	else if (!w->attr.st_nlink)
3346	w->attr.st_nlink = 1;	4189	w->attr.st_nlink = 1;
…		…
3385	ev_feed_event (EV_A_ w, EV_STAT);	4228	ev_feed_event (EV_A_ w, EV_STAT);
3386	}	4229	}
3387	}	4230	}
3388		4231
3389	void	4232	void
3390	ev_stat_start (EV_P_ ev_stat *w)	4233	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3391	{	4234	{
3392	if (expect_false (ev_is_active (w)))	4235	if (expect_false (ev_is_active (w)))
3393	return;	4236	return;
3394		4237
3395	ev_stat_stat (EV_A_ w);	4238	ev_stat_stat (EV_A_ w);
…		…
3416		4259
3417	EV_FREQUENT_CHECK;	4260	EV_FREQUENT_CHECK;
3418	}	4261	}
3419		4262
3420	void	4263	void
3421	ev_stat_stop (EV_P_ ev_stat *w)	4264	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3422	{	4265	{
3423	clear_pending (EV_A_ (W)w);	4266	clear_pending (EV_A_ (W)w);
3424	if (expect_false (!ev_is_active (w)))	4267	if (expect_false (!ev_is_active (w)))
3425	return;	4268	return;
3426		4269
…		…
3442	}	4285	}
3443	#endif	4286	#endif
3444		4287
3445	#if EV_IDLE_ENABLE	4288	#if EV_IDLE_ENABLE
3446	void	4289	void
3447	ev_idle_start (EV_P_ ev_idle *w)	4290	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3448	{	4291	{
3449	if (expect_false (ev_is_active (w)))	4292	if (expect_false (ev_is_active (w)))
3450	return;	4293	return;
3451		4294
3452	pri_adjust (EV_A_ (W)w);	4295	pri_adjust (EV_A_ (W)w);
…		…
3465		4308
3466	EV_FREQUENT_CHECK;	4309	EV_FREQUENT_CHECK;
3467	}	4310	}
3468		4311
3469	void	4312	void
3470	ev_idle_stop (EV_P_ ev_idle *w)	4313	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3471	{	4314	{
3472	clear_pending (EV_A_ (W)w);	4315	clear_pending (EV_A_ (W)w);
3473	if (expect_false (!ev_is_active (w)))	4316	if (expect_false (!ev_is_active (w)))
3474	return;	4317	return;
3475		4318
…		…
3489	}	4332	}
3490	#endif	4333	#endif
3491		4334
3492	#if EV_PREPARE_ENABLE	4335	#if EV_PREPARE_ENABLE
3493	void	4336	void
3494	ev_prepare_start (EV_P_ ev_prepare *w)	4337	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3495	{	4338	{
3496	if (expect_false (ev_is_active (w)))	4339	if (expect_false (ev_is_active (w)))
3497	return;	4340	return;
3498		4341
3499	EV_FREQUENT_CHECK;	4342	EV_FREQUENT_CHECK;
…		…
3504		4347
3505	EV_FREQUENT_CHECK;	4348	EV_FREQUENT_CHECK;
3506	}	4349	}
3507		4350
3508	void	4351	void
3509	ev_prepare_stop (EV_P_ ev_prepare *w)	4352	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3510	{	4353	{
3511	clear_pending (EV_A_ (W)w);	4354	clear_pending (EV_A_ (W)w);
3512	if (expect_false (!ev_is_active (w)))	4355	if (expect_false (!ev_is_active (w)))
3513	return;	4356	return;
3514		4357
…		…
3527	}	4370	}
3528	#endif	4371	#endif
3529		4372
3530	#if EV_CHECK_ENABLE	4373	#if EV_CHECK_ENABLE
3531	void	4374	void
3532	ev_check_start (EV_P_ ev_check *w)	4375	ev_check_start (EV_P_ ev_check *w) EV_THROW
3533	{	4376	{
3534	if (expect_false (ev_is_active (w)))	4377	if (expect_false (ev_is_active (w)))
3535	return;	4378	return;
3536		4379
3537	EV_FREQUENT_CHECK;	4380	EV_FREQUENT_CHECK;
…		…
3542		4385
3543	EV_FREQUENT_CHECK;	4386	EV_FREQUENT_CHECK;
3544	}	4387	}
3545		4388
3546	void	4389	void
3547	ev_check_stop (EV_P_ ev_check *w)	4390	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3548	{	4391	{
3549	clear_pending (EV_A_ (W)w);	4392	clear_pending (EV_A_ (W)w);
3550	if (expect_false (!ev_is_active (w)))	4393	if (expect_false (!ev_is_active (w)))
3551	return;	4394	return;
3552		4395
…		…
3565	}	4408	}
3566	#endif	4409	#endif
3567		4410
3568	#if EV_EMBED_ENABLE	4411	#if EV_EMBED_ENABLE
3569	void noinline	4412	void noinline
3570	ev_embed_sweep (EV_P_ ev_embed *w)	4413	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3571	{	4414	{
3572	ev_run (w->other, EVRUN_NOWAIT);	4415	ev_run (w->other, EVRUN_NOWAIT);
3573	}	4416	}
3574		4417
3575	static void	4418	static void
…		…
3623	ev_idle_stop (EV_A_ idle);	4466	ev_idle_stop (EV_A_ idle);
3624	}	4467	}
3625	#endif	4468	#endif
3626		4469
3627	void	4470	void
3628	ev_embed_start (EV_P_ ev_embed *w)	4471	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3629	{	4472	{
3630	if (expect_false (ev_is_active (w)))	4473	if (expect_false (ev_is_active (w)))
3631	return;	4474	return;
3632		4475
3633	{	4476	{
…		…
3654		4497
3655	EV_FREQUENT_CHECK;	4498	EV_FREQUENT_CHECK;
3656	}	4499	}
3657		4500
3658	void	4501	void
3659	ev_embed_stop (EV_P_ ev_embed *w)	4502	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3660	{	4503	{
3661	clear_pending (EV_A_ (W)w);	4504	clear_pending (EV_A_ (W)w);
3662	if (expect_false (!ev_is_active (w)))	4505	if (expect_false (!ev_is_active (w)))
3663	return;	4506	return;
3664		4507
…		…
3674	}	4517	}
3675	#endif	4518	#endif
3676		4519
3677	#if EV_FORK_ENABLE	4520	#if EV_FORK_ENABLE
3678	void	4521	void
3679	ev_fork_start (EV_P_ ev_fork *w)	4522	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3680	{	4523	{
3681	if (expect_false (ev_is_active (w)))	4524	if (expect_false (ev_is_active (w)))
3682	return;	4525	return;
3683		4526
3684	EV_FREQUENT_CHECK;	4527	EV_FREQUENT_CHECK;
…		…
3689		4532
3690	EV_FREQUENT_CHECK;	4533	EV_FREQUENT_CHECK;
3691	}	4534	}
3692		4535
3693	void	4536	void
3694	ev_fork_stop (EV_P_ ev_fork *w)	4537	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3695	{	4538	{
3696	clear_pending (EV_A_ (W)w);	4539	clear_pending (EV_A_ (W)w);
3697	if (expect_false (!ev_is_active (w)))	4540	if (expect_false (!ev_is_active (w)))
3698	return;	4541	return;
3699		4542
…		…
3712	}	4555	}
3713	#endif	4556	#endif
3714		4557
3715	#if EV_CLEANUP_ENABLE	4558	#if EV_CLEANUP_ENABLE
3716	void	4559	void
3717	ev_cleanup_start (EV_P_ ev_cleanup *w)	4560	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3718	{	4561	{
3719	if (expect_false (ev_is_active (w)))	4562	if (expect_false (ev_is_active (w)))
3720	return;	4563	return;
3721		4564
3722	EV_FREQUENT_CHECK;	4565	EV_FREQUENT_CHECK;
…		…
3729	ev_unref (EV_A);	4572	ev_unref (EV_A);
3730	EV_FREQUENT_CHECK;	4573	EV_FREQUENT_CHECK;
3731	}	4574	}
3732		4575
3733	void	4576	void
3734	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4577	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3735	{	4578	{
3736	clear_pending (EV_A_ (W)w);	4579	clear_pending (EV_A_ (W)w);
3737	if (expect_false (!ev_is_active (w)))	4580	if (expect_false (!ev_is_active (w)))
3738	return;	4581	return;
3739		4582
…		…
3753	}	4596	}
3754	#endif	4597	#endif
3755		4598
3756	#if EV_ASYNC_ENABLE	4599	#if EV_ASYNC_ENABLE
3757	void	4600	void
3758	ev_async_start (EV_P_ ev_async *w)	4601	ev_async_start (EV_P_ ev_async *w) EV_THROW
3759	{	4602	{
3760	if (expect_false (ev_is_active (w)))	4603	if (expect_false (ev_is_active (w)))
3761	return;	4604	return;
3762		4605
3763	w->sent = 0;	4606	w->sent = 0;
…		…
3772		4615
3773	EV_FREQUENT_CHECK;	4616	EV_FREQUENT_CHECK;
3774	}	4617	}
3775		4618
3776	void	4619	void
3777	ev_async_stop (EV_P_ ev_async *w)	4620	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3778	{	4621	{
3779	clear_pending (EV_A_ (W)w);	4622	clear_pending (EV_A_ (W)w);
3780	if (expect_false (!ev_is_active (w)))	4623	if (expect_false (!ev_is_active (w)))
3781	return;	4624	return;
3782		4625
…		…
3793		4636
3794	EV_FREQUENT_CHECK;	4637	EV_FREQUENT_CHECK;
3795	}	4638	}
3796		4639
3797	void	4640	void
3798	ev_async_send (EV_P_ ev_async *w)	4641	ev_async_send (EV_P_ ev_async *w) EV_THROW
3799	{	4642	{
3800	w->sent = 1;	4643	w->sent = 1;
3801	evpipe_write (EV_A_ &async_pending);	4644	evpipe_write (EV_A_ &async_pending);
3802	}	4645	}
3803	#endif	4646	#endif
…		…
3840		4683
3841	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4684	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3842	}	4685	}
3843		4686
3844	void	4687	void
3845	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4688	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3846	{	4689	{
3847	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4690	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3848		4691
3849	if (expect_false (!once))	4692	if (expect_false (!once))
3850	{	4693	{
…		…
3871	}	4714	}
3872		4715
3873	/*****************************************************************************/	4716	/*****************************************************************************/
3874		4717
3875	#if EV_WALK_ENABLE	4718	#if EV_WALK_ENABLE
3876	void	4719	void ecb_cold
3877	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4720	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3878	{	4721	{
3879	int i, j;	4722	int i, j;
3880	ev_watcher_list *wl, *wn;	4723	ev_watcher_list *wl, *wn;
3881		4724
3882	if (types & (EV_IO | EV_EMBED))	4725	if (types & (EV_IO | EV_EMBED))
…		…
3925	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4768	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3926	#endif	4769	#endif
3927		4770
3928	#if EV_IDLE_ENABLE	4771	#if EV_IDLE_ENABLE
3929	if (types & EV_IDLE)	4772	if (types & EV_IDLE)
3930	for (j = NUMPRI; i--; )	4773	for (j = NUMPRI; j--; )
3931	for (i = idlecnt [j]; i--; )	4774	for (i = idlecnt [j]; i--; )
3932	cb (EV_A_ EV_IDLE, idles [j][i]);	4775	cb (EV_A_ EV_IDLE, idles [j][i]);
3933	#endif	4776	#endif
3934		4777
3935	#if EV_FORK_ENABLE	4778	#if EV_FORK_ENABLE
…		…
3988		4831
3989	#if EV_MULTIPLICITY	4832	#if EV_MULTIPLICITY
3990	#include "ev_wrap.h"	4833	#include "ev_wrap.h"
3991	#endif	4834	#endif
3992		4835
3993	EV_CPP(})
3994

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