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Comparing libev/ev.c (file contents):
Revision 1.379 by root, Sun Jun 19 17:55:13 2011 UTC vs.
Revision 1.435 by root, Sat May 26 08:52:09 2012 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	# error "unable to find value for NSIG, please report"
237	/* to make it compile regardless, just remove the above line, */	247	/* to make it compile regardless, just remove the above line, */
238	/* but consider reporting it, too! :) */	248	/* but consider reporting it, too! :) */
…		…
250	# define EV_USE_CLOCK_SYSCALL 0	260	# define EV_USE_CLOCK_SYSCALL 0
251	# endif	261	# endif
252	#endif	262	#endif
253		263
254	#ifndef EV_USE_MONOTONIC	264	#ifndef EV_USE_MONOTONIC
255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256	# define EV_USE_MONOTONIC EV_FEATURE_OS	266	# define EV_USE_MONOTONIC EV_FEATURE_OS
257	# else	267	# else
258	# define EV_USE_MONOTONIC 0	268	# define EV_USE_MONOTONIC 0
259	# endif	269	# endif
260	#endif	270	#endif
…		…
350	#endif	360	#endif
351		361
352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	362	/* 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. */	363	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	364	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	365	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	366	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	367	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	369	# define EV_USE_MONOTONIC 1
360	# else	370	# else
…		…
386	# define EV_USE_INOTIFY 0	396	# define EV_USE_INOTIFY 0
387	#endif	397	#endif
388		398
389	#if !EV_USE_NANOSLEEP	399	#if !EV_USE_NANOSLEEP
390	/* hp-ux has it in sys/time.h, which we unconditionally include above */	400	/* hp-ux has it in sys/time.h, which we unconditionally include above */
391	# if !defined(_WIN32) && !defined(__hpux)	401	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	402	# include <sys/select.h>
393	# endif	403	# endif
394	#endif	404	#endif
395		405
396	#if EV_USE_INOTIFY	406	#if EV_USE_INOTIFY
…		…
399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	409	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400	# ifndef IN_DONT_FOLLOW	410	# ifndef IN_DONT_FOLLOW
401	# undef EV_USE_INOTIFY	411	# undef EV_USE_INOTIFY
402	# define EV_USE_INOTIFY 0	412	# define EV_USE_INOTIFY 0
403	# endif	413	# endif
404	#endif
405
406	#if EV_SELECT_IS_WINSOCKET
407	# include <winsock.h>
408	#endif	414	#endif
409		415
410	#if EV_USE_EVENTFD	416	#if EV_USE_EVENTFD
411	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412	# include <stdint.h>	418	# include <stdint.h>
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	470	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		471
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	472	#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)	473	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		474
469	/* the following are taken from libecb */	475	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470	/* ecb.h start */	476	/* ECB.H BEGIN */
		477	/*
		478	* libecb - http://software.schmorp.de/pkg/libecb
		479	*
		480	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		481	* Copyright (©) 2011 Emanuele Giaquinta
		482	* All rights reserved.
		483	*
		484	* Redistribution and use in source and binary forms, with or without modifica-
		485	* tion, are permitted provided that the following conditions are met:
		486	*
		487	* 1. Redistributions of source code must retain the above copyright notice,
		488	* this list of conditions and the following disclaimer.
		489	*
		490	* 2. Redistributions in binary form must reproduce the above copyright
		491	* notice, this list of conditions and the following disclaimer in the
		492	* documentation and/or other materials provided with the distribution.
		493	*
		494	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		495	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		496	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		497	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		498	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		499	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		500	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		501	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		502	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		503	* OF THE POSSIBILITY OF SUCH DAMAGE.
		504	*/
		505
		506	#ifndef ECB_H
		507	#define ECB_H
		508
		509	#ifdef _WIN32
		510	typedef signed char int8_t;
		511	typedef unsigned char uint8_t;
		512	typedef signed short int16_t;
		513	typedef unsigned short uint16_t;
		514	typedef signed int int32_t;
		515	typedef unsigned int uint32_t;
		516	#if __GNUC__
		517	typedef signed long long int64_t;
		518	typedef unsigned long long uint64_t;
		519	#else /* _MSC_VER || __BORLANDC__ */
		520	typedef signed __int64 int64_t;
		521	typedef unsigned __int64 uint64_t;
		522	#endif
		523	#else
		524	#include <inttypes.h>
		525	#endif
471		526
472	/* many compilers define _GNUC_ to some versions but then only implement	527	/* many compilers define _GNUC_ to some versions but then only implement
473	* what their idiot authors think are the "more important" extensions,	528	* what their idiot authors think are the "more important" extensions,
474	* causing enourmous grief in return for some better fake benchmark numbers.	529	* causing enormous grief in return for some better fake benchmark numbers.
475	* or so.	530	* or so.
476	* we try to detect these and simply assume they are not gcc - if they have	531	* we try to detect these and simply assume they are not gcc - if they have
477	* an issue with that they should have done it right in the first place.	532	* an issue with that they should have done it right in the first place.
478	*/	533	*/
479	#ifndef ECB_GCC_VERSION	534	#ifndef ECB_GCC_VERSION
480	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	535	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481	#define ECB_GCC_VERSION(major,minor) 0	536	#define ECB_GCC_VERSION(major,minor) 0
482	#else	537	#else
483	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	538	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484	#endif	539	#endif
485	#endif	540	#endif
		541
		542	/*****************************************************************************/
		543
		544	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		545	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		546
		547	#if ECB_NO_THREADS
		548	# define ECB_NO_SMP 1
		549	#endif
		550
		551	#if ECB_NO_THREADS || ECB_NO_SMP
		552	#define ECB_MEMORY_FENCE do { } while (0)
		553	#endif
		554
		555	#ifndef ECB_MEMORY_FENCE
		556	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		557	#if __i386 || __i386__
		558	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		559	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
		560	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		561	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		562	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		563	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		564	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		565	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		566	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		567	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		568	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		570	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		571	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		572	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		573	#elif __sparc || __sparc__
		574	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
		575	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		576	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		577	#elif defined __s390__ || defined __s390x__
		578	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		579	#elif defined __mips__
		580	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		581	#elif defined __alpha__
		582	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		583	#endif
		584	#endif
		585	#endif
		586
		587	#ifndef ECB_MEMORY_FENCE
		588	#if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		589	#define ECB_MEMORY_FENCE __sync_synchronize ()
		590	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
		591	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
		592	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		593	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		594	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		595	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		596	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		597	#elif defined _WIN32
		598	#include <WinNT.h>
		599	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		600	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		601	#include <mbarrier.h>
		602	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		603	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		604	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		605	#elif __xlC__
		606	#define ECB_MEMORY_FENCE __sync ()
		607	#endif
		608	#endif
		609
		610	#ifndef ECB_MEMORY_FENCE
		611	#if !ECB_AVOID_PTHREADS
		612	/*
		613	* if you get undefined symbol references to pthread_mutex_lock,
		614	* or failure to find pthread.h, then you should implement
		615	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		616	* OR provide pthread.h and link against the posix thread library
		617	* of your system.
		618	*/
		619	#include <pthread.h>
		620	#define ECB_NEEDS_PTHREADS 1
		621	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		622
		623	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		624	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		625	#endif
		626	#endif
		627
		628	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		629	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		630	#endif
		631
		632	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		633	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		634	#endif
		635
		636	/*****************************************************************************/
		637
		638	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
486		639
487	#if __cplusplus	640	#if __cplusplus
488	#define ecb_inline static inline	641	#define ecb_inline static inline
489	#elif ECB_GCC_VERSION(2,5)	642	#elif ECB_GCC_VERSION(2,5)
490	#define ecb_inline static __inline__	643	#define ecb_inline static __inline__
491	#elif ECB_C99	644	#elif ECB_C99
492	#define ecb_inline static inline	645	#define ecb_inline static inline
493	#else	646	#else
494	#define ecb_inline static	647	#define ecb_inline static
495	#endif	648	#endif
		649
		650	#if ECB_GCC_VERSION(3,3)
		651	#define ecb_restrict __restrict__
		652	#elif ECB_C99
		653	#define ecb_restrict restrict
		654	#else
		655	#define ecb_restrict
		656	#endif
		657
		658	typedef int ecb_bool;
		659
		660	#define ECB_CONCAT_(a, b) a ## b
		661	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		662	#define ECB_STRINGIFY_(a) # a
		663	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		664
		665	#define ecb_function_ ecb_inline
496		666
497	#if ECB_GCC_VERSION(3,1)	667	#if ECB_GCC_VERSION(3,1)
498	#define ecb_attribute(attrlist) __attribute__(attrlist)	668	#define ecb_attribute(attrlist) __attribute__(attrlist)
499	#define ecb_is_constant(expr) __builtin_constant_p (expr)	669	#define ecb_is_constant(expr) __builtin_constant_p (expr)
500	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	670	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
…		…
504	#define ecb_is_constant(expr) 0	674	#define ecb_is_constant(expr) 0
505	#define ecb_expect(expr,value) (expr)	675	#define ecb_expect(expr,value) (expr)
506	#define ecb_prefetch(addr,rw,locality)	676	#define ecb_prefetch(addr,rw,locality)
507	#endif	677	#endif
508		678
		679	/* no emulation for ecb_decltype */
		680	#if ECB_GCC_VERSION(4,5)
		681	#define ecb_decltype(x) __decltype(x)
		682	#elif ECB_GCC_VERSION(3,0)
		683	#define ecb_decltype(x) __typeof(x)
		684	#endif
		685
509	#define ecb_noinline ecb_attribute ((__noinline__))	686	#define ecb_noinline ecb_attribute ((__noinline__))
510	#define ecb_noreturn ecb_attribute ((__noreturn__))	687	#define ecb_noreturn ecb_attribute ((__noreturn__))
511	#define ecb_unused ecb_attribute ((__unused__))	688	#define ecb_unused ecb_attribute ((__unused__))
512	#define ecb_const ecb_attribute ((__const__))	689	#define ecb_const ecb_attribute ((__const__))
513	#define ecb_pure ecb_attribute ((__pure__))	690	#define ecb_pure ecb_attribute ((__pure__))
…		…
525	/* put around conditional expressions if you are very sure that the */	702	/* put around conditional expressions if you are very sure that the */
526	/* expression is mostly true or mostly false. note that these return */	703	/* expression is mostly true or mostly false. note that these return */
527	/* booleans, not the expression. */	704	/* booleans, not the expression. */
528	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)	705	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
529	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)	706	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530	/* ecb.h end */	707	/* for compatibility to the rest of the world */
		708	#define ecb_likely(expr) ecb_expect_true (expr)
		709	#define ecb_unlikely(expr) ecb_expect_false (expr)
		710
		711	/* count trailing zero bits and count # of one bits */
		712	#if ECB_GCC_VERSION(3,4)
		713	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		714	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		715	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		716	#define ecb_ctz32(x) __builtin_ctz (x)
		717	#define ecb_ctz64(x) __builtin_ctzll (x)
		718	#define ecb_popcount32(x) __builtin_popcount (x)
		719	/* no popcountll */
		720	#else
		721	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		722	ecb_function_ int
		723	ecb_ctz32 (uint32_t x)
		724	{
		725	int r = 0;
		726
		727	x &= ~x + 1; /* this isolates the lowest bit */
		728
		729	#if ECB_branchless_on_i386
		730	r += !!(x & 0xaaaaaaaa) << 0;
		731	r += !!(x & 0xcccccccc) << 1;
		732	r += !!(x & 0xf0f0f0f0) << 2;
		733	r += !!(x & 0xff00ff00) << 3;
		734	r += !!(x & 0xffff0000) << 4;
		735	#else
		736	if (x & 0xaaaaaaaa) r += 1;
		737	if (x & 0xcccccccc) r += 2;
		738	if (x & 0xf0f0f0f0) r += 4;
		739	if (x & 0xff00ff00) r += 8;
		740	if (x & 0xffff0000) r += 16;
		741	#endif
		742
		743	return r;
		744	}
		745
		746	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		747	ecb_function_ int
		748	ecb_ctz64 (uint64_t x)
		749	{
		750	int shift = x & 0xffffffffU ? 0 : 32;
		751	return ecb_ctz32 (x >> shift) + shift;
		752	}
		753
		754	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		755	ecb_function_ int
		756	ecb_popcount32 (uint32_t x)
		757	{
		758	x -= (x >> 1) & 0x55555555;
		759	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		760	x = ((x >> 4) + x) & 0x0f0f0f0f;
		761	x *= 0x01010101;
		762
		763	return x >> 24;
		764	}
		765
		766	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		767	ecb_function_ int ecb_ld32 (uint32_t x)
		768	{
		769	int r = 0;
		770
		771	if (x >> 16) { x >>= 16; r += 16; }
		772	if (x >> 8) { x >>= 8; r += 8; }
		773	if (x >> 4) { x >>= 4; r += 4; }
		774	if (x >> 2) { x >>= 2; r += 2; }
		775	if (x >> 1) { r += 1; }
		776
		777	return r;
		778	}
		779
		780	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		781	ecb_function_ int ecb_ld64 (uint64_t x)
		782	{
		783	int r = 0;
		784
		785	if (x >> 32) { x >>= 32; r += 32; }
		786
		787	return r + ecb_ld32 (x);
		788	}
		789	#endif
		790
		791	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		792	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		793	{
		794	return ( (x * 0x0802U & 0x22110U)
		795	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		796	}
		797
		798	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		799	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		800	{
		801	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		802	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		803	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		804	x = ( x >> 8 ) | ( x << 8);
		805
		806	return x;
		807	}
		808
		809	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		810	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		811	{
		812	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		813	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		814	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		815	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		816	x = ( x >> 16 ) | ( x << 16);
		817
		818	return x;
		819	}
		820
		821	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		822	/* so for this version we are lazy */
		823	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		824	ecb_function_ int
		825	ecb_popcount64 (uint64_t x)
		826	{
		827	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		828	}
		829
		830	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		831	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		832	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		833	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		834	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		835	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		836	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		837	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		838
		839	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		840	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		841	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		842	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		843	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		844	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		845	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		846	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		847
		848	#if ECB_GCC_VERSION(4,3)
		849	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		850	#define ecb_bswap32(x) __builtin_bswap32 (x)
		851	#define ecb_bswap64(x) __builtin_bswap64 (x)
		852	#else
		853	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		854	ecb_function_ uint16_t
		855	ecb_bswap16 (uint16_t x)
		856	{
		857	return ecb_rotl16 (x, 8);
		858	}
		859
		860	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		861	ecb_function_ uint32_t
		862	ecb_bswap32 (uint32_t x)
		863	{
		864	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		865	}
		866
		867	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		868	ecb_function_ uint64_t
		869	ecb_bswap64 (uint64_t x)
		870	{
		871	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		872	}
		873	#endif
		874
		875	#if ECB_GCC_VERSION(4,5)
		876	#define ecb_unreachable() __builtin_unreachable ()
		877	#else
		878	/* this seems to work fine, but gcc always emits a warning for it :/ */
		879	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		880	ecb_inline void ecb_unreachable (void) { }
		881	#endif
		882
		883	/* try to tell the compiler that some condition is definitely true */
		884	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		885
		886	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		887	ecb_inline unsigned char
		888	ecb_byteorder_helper (void)
		889	{
		890	const uint32_t u = 0x11223344;
		891	return *(unsigned char *)&u;
		892	}
		893
		894	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		895	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		896	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		897	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		898
		899	#if ECB_GCC_VERSION(3,0) || ECB_C99
		900	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		901	#else
		902	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		903	#endif
		904
		905	#if __cplusplus
		906	template<typename T>
		907	static inline T ecb_div_rd (T val, T div)
		908	{
		909	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		910	}
		911	template<typename T>
		912	static inline T ecb_div_ru (T val, T div)
		913	{
		914	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		915	}
		916	#else
		917	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		918	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		919	#endif
		920
		921	#if ecb_cplusplus_does_not_suck
		922	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		923	template<typename T, int N>
		924	static inline int ecb_array_length (const T (&arr)[N])
		925	{
		926	return N;
		927	}
		928	#else
		929	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		930	#endif
		931
		932	#endif
		933
		934	/* ECB.H END */
		935
		936	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		937	/* if your architecture doesn't need memory fences, e.g. because it is
		938	* single-cpu/core, or if you use libev in a project that doesn't use libev
		939	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		940	* libev, in which cases the memory fences become nops.
		941	* alternatively, you can remove this #error and link against libpthread,
		942	* which will then provide the memory fences.
		943	*/
		944	# error "memory fences not defined for your architecture, please report"
		945	#endif
		946
		947	#ifndef ECB_MEMORY_FENCE
		948	# define ECB_MEMORY_FENCE do { } while (0)
		949	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		950	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		951	#endif
531		952
532	#define expect_false(cond) ecb_expect_false (cond)	953	#define expect_false(cond) ecb_expect_false (cond)
533	#define expect_true(cond) ecb_expect_true (cond)	954	#define expect_true(cond) ecb_expect_true (cond)
534	#define noinline ecb_noinline	955	#define noinline ecb_noinline
535		956
…		…
681	{	1102	{
682	write (STDERR_FILENO, msg, strlen (msg));	1103	write (STDERR_FILENO, msg, strlen (msg));
683	}	1104	}
684	#endif	1105	#endif
685		1106
686	static void (*syserr_cb)(const char *msg);	1107	static void (*syserr_cb)(const char *msg) EV_THROW;
687		1108
688	void ecb_cold	1109	void ecb_cold
689	ev_set_syserr_cb (void (*cb)(const char *msg))	1110	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
690	{	1111	{
691	syserr_cb = cb;	1112	syserr_cb = cb;
692	}	1113	}
693		1114
694	static void noinline ecb_cold	1115	static void noinline ecb_cold
…		…
712	abort ();	1133	abort ();
713	}	1134	}
714	}	1135	}
715		1136
716	static void *	1137	static void *
717	ev_realloc_emul (void *ptr, long size)	1138	ev_realloc_emul (void *ptr, long size) EV_THROW
718	{	1139	{
719	#if __GLIBC__	1140	#if __GLIBC__
720	return realloc (ptr, size);	1141	return realloc (ptr, size);
721	#else	1142	#else
722	/* some systems, notably openbsd and darwin, fail to properly	1143	/* some systems, notably openbsd and darwin, fail to properly
…		…
730	free (ptr);	1151	free (ptr);
731	return 0;	1152	return 0;
732	#endif	1153	#endif
733	}	1154	}
734		1155
735	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1156	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
736		1157
737	void ecb_cold	1158	void ecb_cold
738	ev_set_allocator (void *(*cb)(void *ptr, long size))	1159	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
739	{	1160	{
740	alloc = cb;	1161	alloc = cb;
741	}	1162	}
742		1163
743	inline_speed void *	1164	inline_speed void *
…		…
831	#undef VAR	1252	#undef VAR
832	};	1253	};
833	#include "ev_wrap.h"	1254	#include "ev_wrap.h"
834		1255
835	static struct ev_loop default_loop_struct;	1256	static struct ev_loop default_loop_struct;
836	struct ev_loop *ev_default_loop_ptr;	1257	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
837		1258
838	#else	1259	#else
839		1260
840	ev_tstamp ev_rt_now;	1261	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
841	#define VAR(name,decl) static decl;	1262	#define VAR(name,decl) static decl;
842	#include "ev_vars.h"	1263	#include "ev_vars.h"
843	#undef VAR	1264	#undef VAR
844		1265
845	static int ev_default_loop_ptr;	1266	static int ev_default_loop_ptr;
…		…
860		1281
861	/*****************************************************************************/	1282	/*****************************************************************************/
862		1283
863	#ifndef EV_HAVE_EV_TIME	1284	#ifndef EV_HAVE_EV_TIME
864	ev_tstamp	1285	ev_tstamp
865	ev_time (void)	1286	ev_time (void) EV_THROW
866	{	1287	{
867	#if EV_USE_REALTIME	1288	#if EV_USE_REALTIME
868	if (expect_true (have_realtime))	1289	if (expect_true (have_realtime))
869	{	1290	{
870	struct timespec ts;	1291	struct timespec ts;
…		…
894	return ev_time ();	1315	return ev_time ();
895	}	1316	}
896		1317
897	#if EV_MULTIPLICITY	1318	#if EV_MULTIPLICITY
898	ev_tstamp	1319	ev_tstamp
899	ev_now (EV_P)	1320	ev_now (EV_P) EV_THROW
900	{	1321	{
901	return ev_rt_now;	1322	return ev_rt_now;
902	}	1323	}
903	#endif	1324	#endif
904		1325
905	void	1326	void
906	ev_sleep (ev_tstamp delay)	1327	ev_sleep (ev_tstamp delay) EV_THROW
907	{	1328	{
908	if (delay > 0.)	1329	if (delay > 0.)
909	{	1330	{
910	#if EV_USE_NANOSLEEP	1331	#if EV_USE_NANOSLEEP
911	struct timespec ts;	1332	struct timespec ts;
912		1333
913	EV_TS_SET (ts, delay);	1334	EV_TS_SET (ts, delay);
914	nanosleep (&ts, 0);	1335	nanosleep (&ts, 0);
915	#elif defined(_WIN32)	1336	#elif defined _WIN32
916	Sleep ((unsigned long)(delay * 1e3));	1337	Sleep ((unsigned long)(delay * 1e3));
917	#else	1338	#else
918	struct timeval tv;	1339	struct timeval tv;
919		1340
920	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1341	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
939		1360
940	do	1361	do
941	ncur <<= 1;	1362	ncur <<= 1;
942	while (cnt > ncur);	1363	while (cnt > ncur);
943		1364
944	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1365	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
945	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1366	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
946	{	1367	{
947	ncur *= elem;	1368	ncur *= elem;
948	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1369	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
949	ncur = ncur - sizeof (void *) * 4;	1370	ncur = ncur - sizeof (void *) * 4;
…		…
964	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1385	memset ((void *)(base), 0, sizeof (*(base)) * (count))
965		1386
966	#define array_needsize(type,base,cur,cnt,init) \	1387	#define array_needsize(type,base,cur,cnt,init) \
967	if (expect_false ((cnt) > (cur))) \	1388	if (expect_false ((cnt) > (cur))) \
968	{ \	1389	{ \
969	int ocur_ = (cur); \	1390	int ecb_unused ocur_ = (cur); \
970	(base) = (type *)array_realloc \	1391	(base) = (type *)array_realloc \
971	(sizeof (type), (base), &(cur), (cnt)); \	1392	(sizeof (type), (base), &(cur), (cnt)); \
972	init ((base) + (ocur_), (cur) - ocur_); \	1393	init ((base) + (ocur_), (cur) - ocur_); \
973	}	1394	}
974		1395
…		…
992	pendingcb (EV_P_ ev_prepare *w, int revents)	1413	pendingcb (EV_P_ ev_prepare *w, int revents)
993	{	1414	{
994	}	1415	}
995		1416
996	void noinline	1417	void noinline
997	ev_feed_event (EV_P_ void *w, int revents)	1418	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
998	{	1419	{
999	W w_ = (W)w;	1420	W w_ = (W)w;
1000	int pri = ABSPRI (w_);	1421	int pri = ABSPRI (w_);
1001		1422
1002	if (expect_false (w_->pending))	1423	if (expect_false (w_->pending))
…		…
1006	w_->pending = ++pendingcnt [pri];	1427	w_->pending = ++pendingcnt [pri];
1007	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1428	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1008	pendings [pri][w_->pending - 1].w = w_;	1429	pendings [pri][w_->pending - 1].w = w_;
1009	pendings [pri][w_->pending - 1].events = revents;	1430	pendings [pri][w_->pending - 1].events = revents;
1010	}	1431	}
		1432
		1433	pendingpri = NUMPRI - 1;
1011	}	1434	}
1012		1435
1013	inline_speed void	1436	inline_speed void
1014	feed_reverse (EV_P_ W w)	1437	feed_reverse (EV_P_ W w)
1015	{	1438	{
…		…
1061	if (expect_true (!anfd->reify))	1484	if (expect_true (!anfd->reify))
1062	fd_event_nocheck (EV_A_ fd, revents);	1485	fd_event_nocheck (EV_A_ fd, revents);
1063	}	1486	}
1064		1487
1065	void	1488	void
1066	ev_feed_fd_event (EV_P_ int fd, int revents)	1489	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1067	{	1490	{
1068	if (fd >= 0 && fd < anfdmax)	1491	if (fd >= 0 && fd < anfdmax)
1069	fd_event_nocheck (EV_A_ fd, revents);	1492	fd_event_nocheck (EV_A_ fd, revents);
1070	}	1493	}
1071		1494
…		…
1417	ev_io_start (EV_A_ &pipe_w);	1840	ev_io_start (EV_A_ &pipe_w);
1418	ev_unref (EV_A); /* watcher should not keep loop alive */	1841	ev_unref (EV_A); /* watcher should not keep loop alive */
1419	}	1842	}
1420	}	1843	}
1421		1844
1422	inline_size void	1845	inline_speed void
1423	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1846	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1424	{	1847	{
1425	if (!*flag)	1848	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1426	{	1849
		1850	if (expect_true (*flag))
		1851	return;
		1852
1427	*flag = 1;	1853	*flag = 1;
1428		1854
		1855	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1856
1429	pipe_write_skipped = 1;	1857	pipe_write_skipped = 1;
1430		1858
		1859	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1860
1431	if (pipe_write_wanted)	1861	if (pipe_write_wanted)
		1862	{
		1863	int old_errno;
		1864
		1865	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1866
		1867	old_errno = errno; /* save errno because write will clobber it */
		1868
		1869	#if EV_USE_EVENTFD
		1870	if (evfd >= 0)
1432	{	1871	{
1433	int old_errno = errno; /* save errno because write will clobber it */
1434	char dummy;
1435
1436	pipe_write_skipped = 0;
1437
1438	#if EV_USE_EVENTFD
1439	if (evfd >= 0)
1440	{
1441	uint64_t counter = 1;	1872	uint64_t counter = 1;
1442	write (evfd, &counter, sizeof (uint64_t));	1873	write (evfd, &counter, sizeof (uint64_t));
1443	}
1444	else
1445	#endif
1446	{
1447	/* win32 people keep sending patches that change this write() to send() */
1448	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1449	/* so when you think this write should be a send instead, please find out */
1450	/* where your send() is from - it's definitely not the microsoft send, and */
1451	/* tell me. thank you. */
1452	write (evpipe [1], &dummy, 1);
1453	}
1454
1455	errno = old_errno;
1456	}	1874	}
		1875	else
		1876	#endif
		1877	{
		1878	#ifdef _WIN32
		1879	WSABUF buf;
		1880	DWORD sent;
		1881	buf.buf = &buf;
		1882	buf.len = 1;
		1883	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		1884	#else
		1885	write (evpipe [1], &(evpipe [1]), 1);
		1886	#endif
		1887	}
		1888
		1889	errno = old_errno;
1457	}	1890	}
1458	}	1891	}
1459		1892
1460	/* called whenever the libev signal pipe */	1893	/* called whenever the libev signal pipe */
1461	/* got some events (signal, async) */	1894	/* got some events (signal, async) */
…		…
1473	read (evfd, &counter, sizeof (uint64_t));	1906	read (evfd, &counter, sizeof (uint64_t));
1474	}	1907	}
1475	else	1908	else
1476	#endif	1909	#endif
1477	{	1910	{
1478	char dummy;	1911	char dummy[4];
1479	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1912	#ifdef _WIN32
		1913	WSABUF buf;
		1914	DWORD recvd;
		1915	DWORD flags = 0;
		1916	buf.buf = dummy;
		1917	buf.len = sizeof (dummy);
		1918	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		1919	#else
1480	read (evpipe [0], &dummy, 1);	1920	read (evpipe [0], &dummy, sizeof (dummy));
		1921	#endif
1481	}	1922	}
1482	}	1923	}
1483		1924
1484	pipe_write_skipped = 0;	1925	pipe_write_skipped = 0;
		1926
		1927	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1485		1928
1486	#if EV_SIGNAL_ENABLE	1929	#if EV_SIGNAL_ENABLE
1487	if (sig_pending)	1930	if (sig_pending)
1488	{	1931	{
1489	sig_pending = 0;	1932	sig_pending = 0;
		1933
		1934	ECB_MEMORY_FENCE_RELEASE;
1490		1935
1491	for (i = EV_NSIG - 1; i--; )	1936	for (i = EV_NSIG - 1; i--; )
1492	if (expect_false (signals [i].pending))	1937	if (expect_false (signals [i].pending))
1493	ev_feed_signal_event (EV_A_ i + 1);	1938	ev_feed_signal_event (EV_A_ i + 1);
1494	}	1939	}
…		…
1496		1941
1497	#if EV_ASYNC_ENABLE	1942	#if EV_ASYNC_ENABLE
1498	if (async_pending)	1943	if (async_pending)
1499	{	1944	{
1500	async_pending = 0;	1945	async_pending = 0;
		1946
		1947	ECB_MEMORY_FENCE_RELEASE;
1501		1948
1502	for (i = asynccnt; i--; )	1949	for (i = asynccnt; i--; )
1503	if (asyncs [i]->sent)	1950	if (asyncs [i]->sent)
1504	{	1951	{
1505	asyncs [i]->sent = 0;	1952	asyncs [i]->sent = 0;
…		…
1510	}	1957	}
1511		1958
1512	/*****************************************************************************/	1959	/*****************************************************************************/
1513		1960
1514	void	1961	void
1515	ev_feed_signal (int signum)	1962	ev_feed_signal (int signum) EV_THROW
1516	{	1963	{
1517	#if EV_MULTIPLICITY	1964	#if EV_MULTIPLICITY
1518	EV_P = signals [signum - 1].loop;	1965	EV_P = signals [signum - 1].loop;
1519		1966
1520	if (!EV_A)	1967	if (!EV_A)
1521	return;	1968	return;
1522	#endif	1969	#endif
1523		1970
1524	evpipe_init (EV_A);	1971	if (!ev_active (&pipe_w))
		1972	return;
1525		1973
1526	signals [signum - 1].pending = 1;	1974	signals [signum - 1].pending = 1;
1527	evpipe_write (EV_A_ &sig_pending);	1975	evpipe_write (EV_A_ &sig_pending);
1528	}	1976	}
1529		1977
…		…
1536		1984
1537	ev_feed_signal (signum);	1985	ev_feed_signal (signum);
1538	}	1986	}
1539		1987
1540	void noinline	1988	void noinline
1541	ev_feed_signal_event (EV_P_ int signum)	1989	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1542	{	1990	{
1543	WL w;	1991	WL w;
1544		1992
1545	if (expect_false (signum <= 0 || signum > EV_NSIG))	1993	if (expect_false (signum <= 0 || signum > EV_NSIG))
1546	return;	1994	return;
…		…
1662	#if EV_USE_SELECT	2110	#if EV_USE_SELECT
1663	# include "ev_select.c"	2111	# include "ev_select.c"
1664	#endif	2112	#endif
1665		2113
1666	int ecb_cold	2114	int ecb_cold
1667	ev_version_major (void)	2115	ev_version_major (void) EV_THROW
1668	{	2116	{
1669	return EV_VERSION_MAJOR;	2117	return EV_VERSION_MAJOR;
1670	}	2118	}
1671		2119
1672	int ecb_cold	2120	int ecb_cold
1673	ev_version_minor (void)	2121	ev_version_minor (void) EV_THROW
1674	{	2122	{
1675	return EV_VERSION_MINOR;	2123	return EV_VERSION_MINOR;
1676	}	2124	}
1677		2125
1678	/* return true if we are running with elevated privileges and should ignore env variables */	2126	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
1686	|| getgid () != getegid ();	2134	|| getgid () != getegid ();
1687	#endif	2135	#endif
1688	}	2136	}
1689		2137
1690	unsigned int ecb_cold	2138	unsigned int ecb_cold
1691	ev_supported_backends (void)	2139	ev_supported_backends (void) EV_THROW
1692	{	2140	{
1693	unsigned int flags = 0;	2141	unsigned int flags = 0;
1694		2142
1695	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2143	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1696	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2144	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1700		2148
1701	return flags;	2149	return flags;
1702	}	2150	}
1703		2151
1704	unsigned int ecb_cold	2152	unsigned int ecb_cold
1705	ev_recommended_backends (void)	2153	ev_recommended_backends (void) EV_THROW
1706	{	2154	{
1707	unsigned int flags = ev_supported_backends ();	2155	unsigned int flags = ev_supported_backends ();
1708		2156
1709	#ifndef __NetBSD__	2157	#ifndef __NetBSD__
1710	/* kqueue is borked on everything but netbsd apparently */	2158	/* kqueue is borked on everything but netbsd apparently */
…		…
1722		2170
1723	return flags;	2171	return flags;
1724	}	2172	}
1725		2173
1726	unsigned int ecb_cold	2174	unsigned int ecb_cold
1727	ev_embeddable_backends (void)	2175	ev_embeddable_backends (void) EV_THROW
1728	{	2176	{
1729	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2177	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1730		2178
1731	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2179	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1732	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2180	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1734		2182
1735	return flags;	2183	return flags;
1736	}	2184	}
1737		2185
1738	unsigned int	2186	unsigned int
1739	ev_backend (EV_P)	2187	ev_backend (EV_P) EV_THROW
1740	{	2188	{
1741	return backend;	2189	return backend;
1742	}	2190	}
1743		2191
1744	#if EV_FEATURE_API	2192	#if EV_FEATURE_API
1745	unsigned int	2193	unsigned int
1746	ev_iteration (EV_P)	2194	ev_iteration (EV_P) EV_THROW
1747	{	2195	{
1748	return loop_count;	2196	return loop_count;
1749	}	2197	}
1750		2198
1751	unsigned int	2199	unsigned int
1752	ev_depth (EV_P)	2200	ev_depth (EV_P) EV_THROW
1753	{	2201	{
1754	return loop_depth;	2202	return loop_depth;
1755	}	2203	}
1756		2204
1757	void	2205	void
1758	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2206	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1759	{	2207	{
1760	io_blocktime = interval;	2208	io_blocktime = interval;
1761	}	2209	}
1762		2210
1763	void	2211	void
1764	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2212	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1765	{	2213	{
1766	timeout_blocktime = interval;	2214	timeout_blocktime = interval;
1767	}	2215	}
1768		2216
1769	void	2217	void
1770	ev_set_userdata (EV_P_ void *data)	2218	ev_set_userdata (EV_P_ void *data) EV_THROW
1771	{	2219	{
1772	userdata = data;	2220	userdata = data;
1773	}	2221	}
1774		2222
1775	void *	2223	void *
1776	ev_userdata (EV_P)	2224	ev_userdata (EV_P) EV_THROW
1777	{	2225	{
1778	return userdata;	2226	return userdata;
1779	}	2227	}
1780		2228
1781	void	2229	void
1782	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2230	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1783	{	2231	{
1784	invoke_cb = invoke_pending_cb;	2232	invoke_cb = invoke_pending_cb;
1785	}	2233	}
1786		2234
1787	void	2235	void
1788	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2236	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1789	{	2237	{
1790	release_cb = release;	2238	release_cb = release;
1791	acquire_cb = acquire;	2239	acquire_cb = acquire;
1792	}	2240	}
1793	#endif	2241	#endif
1794		2242
1795	/* initialise a loop structure, must be zero-initialised */	2243	/* initialise a loop structure, must be zero-initialised */
1796	static void noinline ecb_cold	2244	static void noinline ecb_cold
1797	loop_init (EV_P_ unsigned int flags)	2245	loop_init (EV_P_ unsigned int flags) EV_THROW
1798	{	2246	{
1799	if (!backend)	2247	if (!backend)
1800	{	2248	{
1801	origflags = flags;	2249	origflags = flags;
1802		2250
…		…
1907	EV_INVOKE_PENDING;	2355	EV_INVOKE_PENDING;
1908	}	2356	}
1909	#endif	2357	#endif
1910		2358
1911	#if EV_CHILD_ENABLE	2359	#if EV_CHILD_ENABLE
1912	if (ev_is_active (&childev))	2360	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1913	{	2361	{
1914	ev_ref (EV_A); /* child watcher */	2362	ev_ref (EV_A); /* child watcher */
1915	ev_signal_stop (EV_A_ &childev);	2363	ev_signal_stop (EV_A_ &childev);
1916	}	2364	}
1917	#endif	2365	#endif
…		…
2055	}	2503	}
2056		2504
2057	#if EV_MULTIPLICITY	2505	#if EV_MULTIPLICITY
2058		2506
2059	struct ev_loop * ecb_cold	2507	struct ev_loop * ecb_cold
2060	ev_loop_new (unsigned int flags)	2508	ev_loop_new (unsigned int flags) EV_THROW
2061	{	2509	{
2062	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2510	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2063		2511
2064	memset (EV_A, 0, sizeof (struct ev_loop));	2512	memset (EV_A, 0, sizeof (struct ev_loop));
2065	loop_init (EV_A_ flags);	2513	loop_init (EV_A_ flags);
…		…
2109	}	2557	}
2110	#endif	2558	#endif
2111		2559
2112	#if EV_FEATURE_API	2560	#if EV_FEATURE_API
2113	void ecb_cold	2561	void ecb_cold
2114	ev_verify (EV_P)	2562	ev_verify (EV_P) EV_THROW
2115	{	2563	{
2116	#if EV_VERIFY	2564	#if EV_VERIFY
2117	int i;	2565	int i;
2118	WL w;	2566	WL w, w2;
2119		2567
2120	assert (activecnt >= -1);	2568	assert (activecnt >= -1);
2121		2569
2122	assert (fdchangemax >= fdchangecnt);	2570	assert (fdchangemax >= fdchangecnt);
2123	for (i = 0; i < fdchangecnt; ++i)	2571	for (i = 0; i < fdchangecnt; ++i)
2124	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2572	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2125		2573
2126	assert (anfdmax >= 0);	2574	assert (anfdmax >= 0);
2127	for (i = 0; i < anfdmax; ++i)	2575	for (i = 0; i < anfdmax; ++i)
		2576	{
		2577	int j = 0;
		2578
2128	for (w = anfds [i].head; w; w = w->next)	2579	for (w = w2 = anfds [i].head; w; w = w->next)
2129	{	2580	{
2130	verify_watcher (EV_A_ (W)w);	2581	verify_watcher (EV_A_ (W)w);
		2582
		2583	if (j++ & 1)
		2584	{
		2585	assert (("libev: io watcher list contains a loop", w != w2));
		2586	w2 = w2->next;
		2587	}
		2588
2131	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2589	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2132	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2590	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2133	}	2591	}
		2592	}
2134		2593
2135	assert (timermax >= timercnt);	2594	assert (timermax >= timercnt);
2136	verify_heap (EV_A_ timers, timercnt);	2595	verify_heap (EV_A_ timers, timercnt);
2137		2596
2138	#if EV_PERIODIC_ENABLE	2597	#if EV_PERIODIC_ENABLE
…		…
2188	#if EV_MULTIPLICITY	2647	#if EV_MULTIPLICITY
2189	struct ev_loop * ecb_cold	2648	struct ev_loop * ecb_cold
2190	#else	2649	#else
2191	int	2650	int
2192	#endif	2651	#endif
2193	ev_default_loop (unsigned int flags)	2652	ev_default_loop (unsigned int flags) EV_THROW
2194	{	2653	{
2195	if (!ev_default_loop_ptr)	2654	if (!ev_default_loop_ptr)
2196	{	2655	{
2197	#if EV_MULTIPLICITY	2656	#if EV_MULTIPLICITY
2198	EV_P = ev_default_loop_ptr = &default_loop_struct;	2657	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2217		2676
2218	return ev_default_loop_ptr;	2677	return ev_default_loop_ptr;
2219	}	2678	}
2220		2679
2221	void	2680	void
2222	ev_loop_fork (EV_P)	2681	ev_loop_fork (EV_P) EV_THROW
2223	{	2682	{
2224	postfork = 1; /* must be in line with ev_default_fork */	2683	postfork = 1; /* must be in line with ev_default_fork */
2225	}	2684	}
2226		2685
2227	/*****************************************************************************/	2686	/*****************************************************************************/
…		…
2231	{	2690	{
2232	EV_CB_INVOKE ((W)w, revents);	2691	EV_CB_INVOKE ((W)w, revents);
2233	}	2692	}
2234		2693
2235	unsigned int	2694	unsigned int
2236	ev_pending_count (EV_P)	2695	ev_pending_count (EV_P) EV_THROW
2237	{	2696	{
2238	int pri;	2697	int pri;
2239	unsigned int count = 0;	2698	unsigned int count = 0;
2240		2699
2241	for (pri = NUMPRI; pri--; )	2700	for (pri = NUMPRI; pri--; )
…		…
2245	}	2704	}
2246		2705
2247	void noinline	2706	void noinline
2248	ev_invoke_pending (EV_P)	2707	ev_invoke_pending (EV_P)
2249	{	2708	{
2250	int pri;	2709	for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2251
2252	for (pri = NUMPRI; pri--; )
2253	while (pendingcnt [pri])	2710	while (pendingcnt [pendingpri])
2254	{	2711	{
2255	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2712	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2256		2713
2257	p->w->pending = 0;	2714	p->w->pending = 0;
2258	EV_CB_INVOKE (p->w, p->events);	2715	EV_CB_INVOKE (p->w, p->events);
2259	EV_FREQUENT_CHECK;	2716	EV_FREQUENT_CHECK;
2260	}	2717	}
…		…
2355	{	2812	{
2356	EV_FREQUENT_CHECK;	2813	EV_FREQUENT_CHECK;
2357		2814
2358	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2815	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2359	{	2816	{
2360	int feed_count = 0;
2361
2362	do	2817	do
2363	{	2818	{
2364	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2819	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2365		2820
2366	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2821	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2500		2955
2501	mn_now = ev_rt_now;	2956	mn_now = ev_rt_now;
2502	}	2957	}
2503	}	2958	}
2504		2959
2505	void	2960	int
2506	ev_run (EV_P_ int flags)	2961	ev_run (EV_P_ int flags)
2507	{	2962	{
2508	#if EV_FEATURE_API	2963	#if EV_FEATURE_API
2509	++loop_depth;	2964	++loop_depth;
2510	#endif	2965	#endif
…		…
2571	time_update (EV_A_ 1e100);	3026	time_update (EV_A_ 1e100);
2572		3027
2573	/* from now on, we want a pipe-wake-up */	3028	/* from now on, we want a pipe-wake-up */
2574	pipe_write_wanted = 1;	3029	pipe_write_wanted = 1;
2575		3030
		3031	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3032
2576	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3033	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2577	{	3034	{
2578	waittime = MAX_BLOCKTIME;	3035	waittime = MAX_BLOCKTIME;
2579		3036
2580	if (timercnt)	3037	if (timercnt)
…		…
2621	#endif	3078	#endif
2622	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3079	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2623	backend_poll (EV_A_ waittime);	3080	backend_poll (EV_A_ waittime);
2624	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3081	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2625		3082
2626	pipe_write_wanted = 0;	3083	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2627		3084
2628	if (pipe_write_skipped)	3085	if (pipe_write_skipped)
2629	{	3086	{
2630	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3087	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2631	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3088	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
…		…
2665	loop_done = EVBREAK_CANCEL;	3122	loop_done = EVBREAK_CANCEL;
2666		3123
2667	#if EV_FEATURE_API	3124	#if EV_FEATURE_API
2668	--loop_depth;	3125	--loop_depth;
2669	#endif	3126	#endif
		3127
		3128	return activecnt;
2670	}	3129	}
2671		3130
2672	void	3131	void
2673	ev_break (EV_P_ int how)	3132	ev_break (EV_P_ int how) EV_THROW
2674	{	3133	{
2675	loop_done = how;	3134	loop_done = how;
2676	}	3135	}
2677		3136
2678	void	3137	void
2679	ev_ref (EV_P)	3138	ev_ref (EV_P) EV_THROW
2680	{	3139	{
2681	++activecnt;	3140	++activecnt;
2682	}	3141	}
2683		3142
2684	void	3143	void
2685	ev_unref (EV_P)	3144	ev_unref (EV_P) EV_THROW
2686	{	3145	{
2687	--activecnt;	3146	--activecnt;
2688	}	3147	}
2689		3148
2690	void	3149	void
2691	ev_now_update (EV_P)	3150	ev_now_update (EV_P) EV_THROW
2692	{	3151	{
2693	time_update (EV_A_ 1e100);	3152	time_update (EV_A_ 1e100);
2694	}	3153	}
2695		3154
2696	void	3155	void
2697	ev_suspend (EV_P)	3156	ev_suspend (EV_P) EV_THROW
2698	{	3157	{
2699	ev_now_update (EV_A);	3158	ev_now_update (EV_A);
2700	}	3159	}
2701		3160
2702	void	3161	void
2703	ev_resume (EV_P)	3162	ev_resume (EV_P) EV_THROW
2704	{	3163	{
2705	ev_tstamp mn_prev = mn_now;	3164	ev_tstamp mn_prev = mn_now;
2706		3165
2707	ev_now_update (EV_A);	3166	ev_now_update (EV_A);
2708	timers_reschedule (EV_A_ mn_now - mn_prev);	3167	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2747	w->pending = 0;	3206	w->pending = 0;
2748	}	3207	}
2749	}	3208	}
2750		3209
2751	int	3210	int
2752	ev_clear_pending (EV_P_ void *w)	3211	ev_clear_pending (EV_P_ void *w) EV_THROW
2753	{	3212	{
2754	W w_ = (W)w;	3213	W w_ = (W)w;
2755	int pending = w_->pending;	3214	int pending = w_->pending;
2756		3215
2757	if (expect_true (pending))	3216	if (expect_true (pending))
…		…
2790	}	3249	}
2791		3250
2792	/*****************************************************************************/	3251	/*****************************************************************************/
2793		3252
2794	void noinline	3253	void noinline
2795	ev_io_start (EV_P_ ev_io *w)	3254	ev_io_start (EV_P_ ev_io *w) EV_THROW
2796	{	3255	{
2797	int fd = w->fd;	3256	int fd = w->fd;
2798		3257
2799	if (expect_false (ev_is_active (w)))	3258	if (expect_false (ev_is_active (w)))
2800	return;	3259	return;
…		…
2806		3265
2807	ev_start (EV_A_ (W)w, 1);	3266	ev_start (EV_A_ (W)w, 1);
2808	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3267	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2809	wlist_add (&anfds[fd].head, (WL)w);	3268	wlist_add (&anfds[fd].head, (WL)w);
2810		3269
		3270	/* common bug, apparently */
		3271	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3272
2811	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3273	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2812	w->events &= ~EV__IOFDSET;	3274	w->events &= ~EV__IOFDSET;
2813		3275
2814	EV_FREQUENT_CHECK;	3276	EV_FREQUENT_CHECK;
2815	}	3277	}
2816		3278
2817	void noinline	3279	void noinline
2818	ev_io_stop (EV_P_ ev_io *w)	3280	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2819	{	3281	{
2820	clear_pending (EV_A_ (W)w);	3282	clear_pending (EV_A_ (W)w);
2821	if (expect_false (!ev_is_active (w)))	3283	if (expect_false (!ev_is_active (w)))
2822	return;	3284	return;
2823		3285
…		…
2832		3294
2833	EV_FREQUENT_CHECK;	3295	EV_FREQUENT_CHECK;
2834	}	3296	}
2835		3297
2836	void noinline	3298	void noinline
2837	ev_timer_start (EV_P_ ev_timer *w)	3299	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2838	{	3300	{
2839	if (expect_false (ev_is_active (w)))	3301	if (expect_false (ev_is_active (w)))
2840	return;	3302	return;
2841		3303
2842	ev_at (w) += mn_now;	3304	ev_at (w) += mn_now;
…		…
2856		3318
2857	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3319	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2858	}	3320	}
2859		3321
2860	void noinline	3322	void noinline
2861	ev_timer_stop (EV_P_ ev_timer *w)	3323	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2862	{	3324	{
2863	clear_pending (EV_A_ (W)w);	3325	clear_pending (EV_A_ (W)w);
2864	if (expect_false (!ev_is_active (w)))	3326	if (expect_false (!ev_is_active (w)))
2865	return;	3327	return;
2866		3328
…		…
2886		3348
2887	EV_FREQUENT_CHECK;	3349	EV_FREQUENT_CHECK;
2888	}	3350	}
2889		3351
2890	void noinline	3352	void noinline
2891	ev_timer_again (EV_P_ ev_timer *w)	3353	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2892	{	3354	{
2893	EV_FREQUENT_CHECK;	3355	EV_FREQUENT_CHECK;
		3356
		3357	clear_pending (EV_A_ (W)w);
2894		3358
2895	if (ev_is_active (w))	3359	if (ev_is_active (w))
2896	{	3360	{
2897	if (w->repeat)	3361	if (w->repeat)
2898	{	3362	{
…		…
2911		3375
2912	EV_FREQUENT_CHECK;	3376	EV_FREQUENT_CHECK;
2913	}	3377	}
2914		3378
2915	ev_tstamp	3379	ev_tstamp
2916	ev_timer_remaining (EV_P_ ev_timer *w)	3380	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2917	{	3381	{
2918	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3382	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2919	}	3383	}
2920		3384
2921	#if EV_PERIODIC_ENABLE	3385	#if EV_PERIODIC_ENABLE
2922	void noinline	3386	void noinline
2923	ev_periodic_start (EV_P_ ev_periodic *w)	3387	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2924	{	3388	{
2925	if (expect_false (ev_is_active (w)))	3389	if (expect_false (ev_is_active (w)))
2926	return;	3390	return;
2927		3391
2928	if (w->reschedule_cb)	3392	if (w->reschedule_cb)
…		…
2948		3412
2949	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3413	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2950	}	3414	}
2951		3415
2952	void noinline	3416	void noinline
2953	ev_periodic_stop (EV_P_ ev_periodic *w)	3417	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2954	{	3418	{
2955	clear_pending (EV_A_ (W)w);	3419	clear_pending (EV_A_ (W)w);
2956	if (expect_false (!ev_is_active (w)))	3420	if (expect_false (!ev_is_active (w)))
2957	return;	3421	return;
2958		3422
…		…
2976		3440
2977	EV_FREQUENT_CHECK;	3441	EV_FREQUENT_CHECK;
2978	}	3442	}
2979		3443
2980	void noinline	3444	void noinline
2981	ev_periodic_again (EV_P_ ev_periodic *w)	3445	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2982	{	3446	{
2983	/* TODO: use adjustheap and recalculation */	3447	/* TODO: use adjustheap and recalculation */
2984	ev_periodic_stop (EV_A_ w);	3448	ev_periodic_stop (EV_A_ w);
2985	ev_periodic_start (EV_A_ w);	3449	ev_periodic_start (EV_A_ w);
2986	}	3450	}
…		…
2991	#endif	3455	#endif
2992		3456
2993	#if EV_SIGNAL_ENABLE	3457	#if EV_SIGNAL_ENABLE
2994		3458
2995	void noinline	3459	void noinline
2996	ev_signal_start (EV_P_ ev_signal *w)	3460	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2997	{	3461	{
2998	if (expect_false (ev_is_active (w)))	3462	if (expect_false (ev_is_active (w)))
2999	return;	3463	return;
3000		3464
3001	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3465	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3072		3536
3073	EV_FREQUENT_CHECK;	3537	EV_FREQUENT_CHECK;
3074	}	3538	}
3075		3539
3076	void noinline	3540	void noinline
3077	ev_signal_stop (EV_P_ ev_signal *w)	3541	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3078	{	3542	{
3079	clear_pending (EV_A_ (W)w);	3543	clear_pending (EV_A_ (W)w);
3080	if (expect_false (!ev_is_active (w)))	3544	if (expect_false (!ev_is_active (w)))
3081	return;	3545	return;
3082		3546
…		…
3113	#endif	3577	#endif
3114		3578
3115	#if EV_CHILD_ENABLE	3579	#if EV_CHILD_ENABLE
3116		3580
3117	void	3581	void
3118	ev_child_start (EV_P_ ev_child *w)	3582	ev_child_start (EV_P_ ev_child *w) EV_THROW
3119	{	3583	{
3120	#if EV_MULTIPLICITY	3584	#if EV_MULTIPLICITY
3121	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3585	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3122	#endif	3586	#endif
3123	if (expect_false (ev_is_active (w)))	3587	if (expect_false (ev_is_active (w)))
…		…
3130		3594
3131	EV_FREQUENT_CHECK;	3595	EV_FREQUENT_CHECK;
3132	}	3596	}
3133		3597
3134	void	3598	void
3135	ev_child_stop (EV_P_ ev_child *w)	3599	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3136	{	3600	{
3137	clear_pending (EV_A_ (W)w);	3601	clear_pending (EV_A_ (W)w);
3138	if (expect_false (!ev_is_active (w)))	3602	if (expect_false (!ev_is_active (w)))
3139	return;	3603	return;
3140		3604
…		…
3307	}	3771	}
3308		3772
3309	inline_size int	3773	inline_size int
3310	infy_newfd (void)	3774	infy_newfd (void)
3311	{	3775	{
3312	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	3776	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3313	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	3777	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3314	if (fd >= 0)	3778	if (fd >= 0)
3315	return fd;	3779	return fd;
3316	#endif	3780	#endif
3317	return inotify_init ();	3781	return inotify_init ();
…		…
3392	#else	3856	#else
3393	# define EV_LSTAT(p,b) lstat (p, b)	3857	# define EV_LSTAT(p,b) lstat (p, b)
3394	#endif	3858	#endif
3395		3859
3396	void	3860	void
3397	ev_stat_stat (EV_P_ ev_stat *w)	3861	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3398	{	3862	{
3399	if (lstat (w->path, &w->attr) < 0)	3863	if (lstat (w->path, &w->attr) < 0)
3400	w->attr.st_nlink = 0;	3864	w->attr.st_nlink = 0;
3401	else if (!w->attr.st_nlink)	3865	else if (!w->attr.st_nlink)
3402	w->attr.st_nlink = 1;	3866	w->attr.st_nlink = 1;
…		…
3441	ev_feed_event (EV_A_ w, EV_STAT);	3905	ev_feed_event (EV_A_ w, EV_STAT);
3442	}	3906	}
3443	}	3907	}
3444		3908
3445	void	3909	void
3446	ev_stat_start (EV_P_ ev_stat *w)	3910	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3447	{	3911	{
3448	if (expect_false (ev_is_active (w)))	3912	if (expect_false (ev_is_active (w)))
3449	return;	3913	return;
3450		3914
3451	ev_stat_stat (EV_A_ w);	3915	ev_stat_stat (EV_A_ w);
…		…
3472		3936
3473	EV_FREQUENT_CHECK;	3937	EV_FREQUENT_CHECK;
3474	}	3938	}
3475		3939
3476	void	3940	void
3477	ev_stat_stop (EV_P_ ev_stat *w)	3941	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3478	{	3942	{
3479	clear_pending (EV_A_ (W)w);	3943	clear_pending (EV_A_ (W)w);
3480	if (expect_false (!ev_is_active (w)))	3944	if (expect_false (!ev_is_active (w)))
3481	return;	3945	return;
3482		3946
…		…
3498	}	3962	}
3499	#endif	3963	#endif
3500		3964
3501	#if EV_IDLE_ENABLE	3965	#if EV_IDLE_ENABLE
3502	void	3966	void
3503	ev_idle_start (EV_P_ ev_idle *w)	3967	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3504	{	3968	{
3505	if (expect_false (ev_is_active (w)))	3969	if (expect_false (ev_is_active (w)))
3506	return;	3970	return;
3507		3971
3508	pri_adjust (EV_A_ (W)w);	3972	pri_adjust (EV_A_ (W)w);
…		…
3521		3985
3522	EV_FREQUENT_CHECK;	3986	EV_FREQUENT_CHECK;
3523	}	3987	}
3524		3988
3525	void	3989	void
3526	ev_idle_stop (EV_P_ ev_idle *w)	3990	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3527	{	3991	{
3528	clear_pending (EV_A_ (W)w);	3992	clear_pending (EV_A_ (W)w);
3529	if (expect_false (!ev_is_active (w)))	3993	if (expect_false (!ev_is_active (w)))
3530	return;	3994	return;
3531		3995
…		…
3545	}	4009	}
3546	#endif	4010	#endif
3547		4011
3548	#if EV_PREPARE_ENABLE	4012	#if EV_PREPARE_ENABLE
3549	void	4013	void
3550	ev_prepare_start (EV_P_ ev_prepare *w)	4014	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3551	{	4015	{
3552	if (expect_false (ev_is_active (w)))	4016	if (expect_false (ev_is_active (w)))
3553	return;	4017	return;
3554		4018
3555	EV_FREQUENT_CHECK;	4019	EV_FREQUENT_CHECK;
…		…
3560		4024
3561	EV_FREQUENT_CHECK;	4025	EV_FREQUENT_CHECK;
3562	}	4026	}
3563		4027
3564	void	4028	void
3565	ev_prepare_stop (EV_P_ ev_prepare *w)	4029	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3566	{	4030	{
3567	clear_pending (EV_A_ (W)w);	4031	clear_pending (EV_A_ (W)w);
3568	if (expect_false (!ev_is_active (w)))	4032	if (expect_false (!ev_is_active (w)))
3569	return;	4033	return;
3570		4034
…		…
3583	}	4047	}
3584	#endif	4048	#endif
3585		4049
3586	#if EV_CHECK_ENABLE	4050	#if EV_CHECK_ENABLE
3587	void	4051	void
3588	ev_check_start (EV_P_ ev_check *w)	4052	ev_check_start (EV_P_ ev_check *w) EV_THROW
3589	{	4053	{
3590	if (expect_false (ev_is_active (w)))	4054	if (expect_false (ev_is_active (w)))
3591	return;	4055	return;
3592		4056
3593	EV_FREQUENT_CHECK;	4057	EV_FREQUENT_CHECK;
…		…
3598		4062
3599	EV_FREQUENT_CHECK;	4063	EV_FREQUENT_CHECK;
3600	}	4064	}
3601		4065
3602	void	4066	void
3603	ev_check_stop (EV_P_ ev_check *w)	4067	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3604	{	4068	{
3605	clear_pending (EV_A_ (W)w);	4069	clear_pending (EV_A_ (W)w);
3606	if (expect_false (!ev_is_active (w)))	4070	if (expect_false (!ev_is_active (w)))
3607	return;	4071	return;
3608		4072
…		…
3621	}	4085	}
3622	#endif	4086	#endif
3623		4087
3624	#if EV_EMBED_ENABLE	4088	#if EV_EMBED_ENABLE
3625	void noinline	4089	void noinline
3626	ev_embed_sweep (EV_P_ ev_embed *w)	4090	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3627	{	4091	{
3628	ev_run (w->other, EVRUN_NOWAIT);	4092	ev_run (w->other, EVRUN_NOWAIT);
3629	}	4093	}
3630		4094
3631	static void	4095	static void
…		…
3679	ev_idle_stop (EV_A_ idle);	4143	ev_idle_stop (EV_A_ idle);
3680	}	4144	}
3681	#endif	4145	#endif
3682		4146
3683	void	4147	void
3684	ev_embed_start (EV_P_ ev_embed *w)	4148	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3685	{	4149	{
3686	if (expect_false (ev_is_active (w)))	4150	if (expect_false (ev_is_active (w)))
3687	return;	4151	return;
3688		4152
3689	{	4153	{
…		…
3710		4174
3711	EV_FREQUENT_CHECK;	4175	EV_FREQUENT_CHECK;
3712	}	4176	}
3713		4177
3714	void	4178	void
3715	ev_embed_stop (EV_P_ ev_embed *w)	4179	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3716	{	4180	{
3717	clear_pending (EV_A_ (W)w);	4181	clear_pending (EV_A_ (W)w);
3718	if (expect_false (!ev_is_active (w)))	4182	if (expect_false (!ev_is_active (w)))
3719	return;	4183	return;
3720		4184
…		…
3730	}	4194	}
3731	#endif	4195	#endif
3732		4196
3733	#if EV_FORK_ENABLE	4197	#if EV_FORK_ENABLE
3734	void	4198	void
3735	ev_fork_start (EV_P_ ev_fork *w)	4199	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3736	{	4200	{
3737	if (expect_false (ev_is_active (w)))	4201	if (expect_false (ev_is_active (w)))
3738	return;	4202	return;
3739		4203
3740	EV_FREQUENT_CHECK;	4204	EV_FREQUENT_CHECK;
…		…
3745		4209
3746	EV_FREQUENT_CHECK;	4210	EV_FREQUENT_CHECK;
3747	}	4211	}
3748		4212
3749	void	4213	void
3750	ev_fork_stop (EV_P_ ev_fork *w)	4214	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3751	{	4215	{
3752	clear_pending (EV_A_ (W)w);	4216	clear_pending (EV_A_ (W)w);
3753	if (expect_false (!ev_is_active (w)))	4217	if (expect_false (!ev_is_active (w)))
3754	return;	4218	return;
3755		4219
…		…
3768	}	4232	}
3769	#endif	4233	#endif
3770		4234
3771	#if EV_CLEANUP_ENABLE	4235	#if EV_CLEANUP_ENABLE
3772	void	4236	void
3773	ev_cleanup_start (EV_P_ ev_cleanup *w)	4237	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3774	{	4238	{
3775	if (expect_false (ev_is_active (w)))	4239	if (expect_false (ev_is_active (w)))
3776	return;	4240	return;
3777		4241
3778	EV_FREQUENT_CHECK;	4242	EV_FREQUENT_CHECK;
…		…
3785	ev_unref (EV_A);	4249	ev_unref (EV_A);
3786	EV_FREQUENT_CHECK;	4250	EV_FREQUENT_CHECK;
3787	}	4251	}
3788		4252
3789	void	4253	void
3790	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4254	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3791	{	4255	{
3792	clear_pending (EV_A_ (W)w);	4256	clear_pending (EV_A_ (W)w);
3793	if (expect_false (!ev_is_active (w)))	4257	if (expect_false (!ev_is_active (w)))
3794	return;	4258	return;
3795		4259
…		…
3809	}	4273	}
3810	#endif	4274	#endif
3811		4275
3812	#if EV_ASYNC_ENABLE	4276	#if EV_ASYNC_ENABLE
3813	void	4277	void
3814	ev_async_start (EV_P_ ev_async *w)	4278	ev_async_start (EV_P_ ev_async *w) EV_THROW
3815	{	4279	{
3816	if (expect_false (ev_is_active (w)))	4280	if (expect_false (ev_is_active (w)))
3817	return;	4281	return;
3818		4282
3819	w->sent = 0;	4283	w->sent = 0;
…		…
3828		4292
3829	EV_FREQUENT_CHECK;	4293	EV_FREQUENT_CHECK;
3830	}	4294	}
3831		4295
3832	void	4296	void
3833	ev_async_stop (EV_P_ ev_async *w)	4297	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3834	{	4298	{
3835	clear_pending (EV_A_ (W)w);	4299	clear_pending (EV_A_ (W)w);
3836	if (expect_false (!ev_is_active (w)))	4300	if (expect_false (!ev_is_active (w)))
3837	return;	4301	return;
3838		4302
…		…
3849		4313
3850	EV_FREQUENT_CHECK;	4314	EV_FREQUENT_CHECK;
3851	}	4315	}
3852		4316
3853	void	4317	void
3854	ev_async_send (EV_P_ ev_async *w)	4318	ev_async_send (EV_P_ ev_async *w) EV_THROW
3855	{	4319	{
3856	w->sent = 1;	4320	w->sent = 1;
3857	evpipe_write (EV_A_ &async_pending);	4321	evpipe_write (EV_A_ &async_pending);
3858	}	4322	}
3859	#endif	4323	#endif
…		…
3896		4360
3897	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4361	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3898	}	4362	}
3899		4363
3900	void	4364	void
3901	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4365	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3902	{	4366	{
3903	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4367	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3904		4368
3905	if (expect_false (!once))	4369	if (expect_false (!once))
3906	{	4370	{
…		…
3928		4392
3929	/*****************************************************************************/	4393	/*****************************************************************************/
3930		4394
3931	#if EV_WALK_ENABLE	4395	#if EV_WALK_ENABLE
3932	void ecb_cold	4396	void ecb_cold
3933	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4397	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3934	{	4398	{
3935	int i, j;	4399	int i, j;
3936	ev_watcher_list *wl, *wn;	4400	ev_watcher_list *wl, *wn;
3937		4401
3938	if (types & (EV_IO | EV_EMBED))	4402	if (types & (EV_IO | EV_EMBED))
…		…
3981	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4445	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3982	#endif	4446	#endif
3983		4447
3984	#if EV_IDLE_ENABLE	4448	#if EV_IDLE_ENABLE
3985	if (types & EV_IDLE)	4449	if (types & EV_IDLE)
3986	for (j = NUMPRI; i--; )	4450	for (j = NUMPRI; j--; )
3987	for (i = idlecnt [j]; i--; )	4451	for (i = idlecnt [j]; i--; )
3988	cb (EV_A_ EV_IDLE, idles [j][i]);	4452	cb (EV_A_ EV_IDLE, idles [j][i]);
3989	#endif	4453	#endif
3990		4454
3991	#if EV_FORK_ENABLE	4455	#if EV_FORK_ENABLE
…		…
4044		4508
4045	#if EV_MULTIPLICITY	4509	#if EV_MULTIPLICITY
4046	#include "ev_wrap.h"	4510	#include "ev_wrap.h"
4047	#endif	4511	#endif
4048		4512
4049	EV_CPP(})
4050

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