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Comparing libev/ev.c (file contents):
Revision 1.381 by root, Mon Jun 27 21:29:35 2011 UTC vs.
Revision 1.436 by root, Tue May 29 20:44:39 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
…		…
1420	}	1843	}
1421		1844
1422	inline_speed 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;
		1854	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1428		1855
		1856	pipe_write_skipped = 1;
		1857
		1858	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1859
		1860	if (pipe_write_wanted)
		1861	{
		1862	int old_errno;
		1863
1429	pipe_write_skipped = 1;	1864	pipe_write_skipped = 0;
		1865	ECB_MEMORY_FENCE_RELEASE;
1430		1866
1431	if (pipe_write_wanted)	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;
1434
1435	pipe_write_skipped = 0;
1436
1437	old_errno = errno; /* save errno because write will clobber it */
1438
1439	#if EV_USE_EVENTFD
1440	if (evfd >= 0)
1441	{
1442	uint64_t counter = 1;	1872	uint64_t counter = 1;
1443	write (evfd, &counter, sizeof (uint64_t));	1873	write (evfd, &counter, sizeof (uint64_t));
1444	}
1445	else
1446	#endif
1447	{
1448	/* win32 people keep sending patches that change this write() to send() */
1449	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1450	/* so when you think this write should be a send instead, please find out */
1451	/* where your send() is from - it's definitely not the microsoft send, and */
1452	/* tell me. thank you. */
1453	write (evpipe [1], &(evpipe [1]), 1);
1454	}
1455
1456	errno = old_errno;
1457	}	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;
1458	}	1890	}
1459	}	1891	}
1460		1892
1461	/* called whenever the libev signal pipe */	1893	/* called whenever the libev signal pipe */
1462	/* got some events (signal, async) */	1894	/* got some events (signal, async) */
…		…
1474	read (evfd, &counter, sizeof (uint64_t));	1906	read (evfd, &counter, sizeof (uint64_t));
1475	}	1907	}
1476	else	1908	else
1477	#endif	1909	#endif
1478	{	1910	{
1479	char dummy;	1911	char dummy[4];
1480	/* 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
1481	read (evpipe [0], &dummy, 1);	1920	read (evpipe [0], &dummy, sizeof (dummy));
		1921	#endif
1482	}	1922	}
1483	}	1923	}
1484		1924
1485	pipe_write_skipped = 0;	1925	pipe_write_skipped = 0;
		1926
		1927	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1486		1928
1487	#if EV_SIGNAL_ENABLE	1929	#if EV_SIGNAL_ENABLE
1488	if (sig_pending)	1930	if (sig_pending)
1489	{	1931	{
1490	sig_pending = 0;	1932	sig_pending = 0;
		1933
		1934	ECB_MEMORY_FENCE;
1491		1935
1492	for (i = EV_NSIG - 1; i--; )	1936	for (i = EV_NSIG - 1; i--; )
1493	if (expect_false (signals [i].pending))	1937	if (expect_false (signals [i].pending))
1494	ev_feed_signal_event (EV_A_ i + 1);	1938	ev_feed_signal_event (EV_A_ i + 1);
1495	}	1939	}
…		…
1497		1941
1498	#if EV_ASYNC_ENABLE	1942	#if EV_ASYNC_ENABLE
1499	if (async_pending)	1943	if (async_pending)
1500	{	1944	{
1501	async_pending = 0;	1945	async_pending = 0;
		1946
		1947	ECB_MEMORY_FENCE;
1502		1948
1503	for (i = asynccnt; i--; )	1949	for (i = asynccnt; i--; )
1504	if (asyncs [i]->sent)	1950	if (asyncs [i]->sent)
1505	{	1951	{
1506	asyncs [i]->sent = 0;	1952	asyncs [i]->sent = 0;
		1953	ECB_MEMORY_FENCE_RELEASE;
1507	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	1954	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1508	}	1955	}
1509	}	1956	}
1510	#endif	1957	#endif
1511	}	1958	}
1512		1959
1513	/*****************************************************************************/	1960	/*****************************************************************************/
1514		1961
1515	void	1962	void
1516	ev_feed_signal (int signum)	1963	ev_feed_signal (int signum) EV_THROW
1517	{	1964	{
1518	#if EV_MULTIPLICITY	1965	#if EV_MULTIPLICITY
1519	EV_P = signals [signum - 1].loop;	1966	EV_P = signals [signum - 1].loop;
1520		1967
1521	if (!EV_A)	1968	if (!EV_A)
…		…
1538		1985
1539	ev_feed_signal (signum);	1986	ev_feed_signal (signum);
1540	}	1987	}
1541		1988
1542	void noinline	1989	void noinline
1543	ev_feed_signal_event (EV_P_ int signum)	1990	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1544	{	1991	{
1545	WL w;	1992	WL w;
1546		1993
1547	if (expect_false (signum <= 0 || signum > EV_NSIG))	1994	if (expect_false (signum <= 0 || signum > EV_NSIG))
1548	return;	1995	return;
…		…
1556	if (expect_false (signals [signum].loop != EV_A))	2003	if (expect_false (signals [signum].loop != EV_A))
1557	return;	2004	return;
1558	#endif	2005	#endif
1559		2006
1560	signals [signum].pending = 0;	2007	signals [signum].pending = 0;
		2008	MEMORY_FENCE_RELEASE;
1561		2009
1562	for (w = signals [signum].head; w; w = w->next)	2010	for (w = signals [signum].head; w; w = w->next)
1563	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2011	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1564	}	2012	}
1565		2013
…		…
1664	#if EV_USE_SELECT	2112	#if EV_USE_SELECT
1665	# include "ev_select.c"	2113	# include "ev_select.c"
1666	#endif	2114	#endif
1667		2115
1668	int ecb_cold	2116	int ecb_cold
1669	ev_version_major (void)	2117	ev_version_major (void) EV_THROW
1670	{	2118	{
1671	return EV_VERSION_MAJOR;	2119	return EV_VERSION_MAJOR;
1672	}	2120	}
1673		2121
1674	int ecb_cold	2122	int ecb_cold
1675	ev_version_minor (void)	2123	ev_version_minor (void) EV_THROW
1676	{	2124	{
1677	return EV_VERSION_MINOR;	2125	return EV_VERSION_MINOR;
1678	}	2126	}
1679		2127
1680	/* return true if we are running with elevated privileges and should ignore env variables */	2128	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
1688	|| getgid () != getegid ();	2136	|| getgid () != getegid ();
1689	#endif	2137	#endif
1690	}	2138	}
1691		2139
1692	unsigned int ecb_cold	2140	unsigned int ecb_cold
1693	ev_supported_backends (void)	2141	ev_supported_backends (void) EV_THROW
1694	{	2142	{
1695	unsigned int flags = 0;	2143	unsigned int flags = 0;
1696		2144
1697	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2145	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1698	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2146	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1702		2150
1703	return flags;	2151	return flags;
1704	}	2152	}
1705		2153
1706	unsigned int ecb_cold	2154	unsigned int ecb_cold
1707	ev_recommended_backends (void)	2155	ev_recommended_backends (void) EV_THROW
1708	{	2156	{
1709	unsigned int flags = ev_supported_backends ();	2157	unsigned int flags = ev_supported_backends ();
1710		2158
1711	#ifndef __NetBSD__	2159	#ifndef __NetBSD__
1712	/* kqueue is borked on everything but netbsd apparently */	2160	/* kqueue is borked on everything but netbsd apparently */
…		…
1724		2172
1725	return flags;	2173	return flags;
1726	}	2174	}
1727		2175
1728	unsigned int ecb_cold	2176	unsigned int ecb_cold
1729	ev_embeddable_backends (void)	2177	ev_embeddable_backends (void) EV_THROW
1730	{	2178	{
1731	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2179	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1732		2180
1733	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2181	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1734	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2182	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1736		2184
1737	return flags;	2185	return flags;
1738	}	2186	}
1739		2187
1740	unsigned int	2188	unsigned int
1741	ev_backend (EV_P)	2189	ev_backend (EV_P) EV_THROW
1742	{	2190	{
1743	return backend;	2191	return backend;
1744	}	2192	}
1745		2193
1746	#if EV_FEATURE_API	2194	#if EV_FEATURE_API
1747	unsigned int	2195	unsigned int
1748	ev_iteration (EV_P)	2196	ev_iteration (EV_P) EV_THROW
1749	{	2197	{
1750	return loop_count;	2198	return loop_count;
1751	}	2199	}
1752		2200
1753	unsigned int	2201	unsigned int
1754	ev_depth (EV_P)	2202	ev_depth (EV_P) EV_THROW
1755	{	2203	{
1756	return loop_depth;	2204	return loop_depth;
1757	}	2205	}
1758		2206
1759	void	2207	void
1760	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2208	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1761	{	2209	{
1762	io_blocktime = interval;	2210	io_blocktime = interval;
1763	}	2211	}
1764		2212
1765	void	2213	void
1766	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2214	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1767	{	2215	{
1768	timeout_blocktime = interval;	2216	timeout_blocktime = interval;
1769	}	2217	}
1770		2218
1771	void	2219	void
1772	ev_set_userdata (EV_P_ void *data)	2220	ev_set_userdata (EV_P_ void *data) EV_THROW
1773	{	2221	{
1774	userdata = data;	2222	userdata = data;
1775	}	2223	}
1776		2224
1777	void *	2225	void *
1778	ev_userdata (EV_P)	2226	ev_userdata (EV_P) EV_THROW
1779	{	2227	{
1780	return userdata;	2228	return userdata;
1781	}	2229	}
1782		2230
1783	void	2231	void
1784	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2232	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1785	{	2233	{
1786	invoke_cb = invoke_pending_cb;	2234	invoke_cb = invoke_pending_cb;
1787	}	2235	}
1788		2236
1789	void	2237	void
1790	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2238	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1791	{	2239	{
1792	release_cb = release;	2240	release_cb = release;
1793	acquire_cb = acquire;	2241	acquire_cb = acquire;
1794	}	2242	}
1795	#endif	2243	#endif
1796		2244
1797	/* initialise a loop structure, must be zero-initialised */	2245	/* initialise a loop structure, must be zero-initialised */
1798	static void noinline ecb_cold	2246	static void noinline ecb_cold
1799	loop_init (EV_P_ unsigned int flags)	2247	loop_init (EV_P_ unsigned int flags) EV_THROW
1800	{	2248	{
1801	if (!backend)	2249	if (!backend)
1802	{	2250	{
1803	origflags = flags;	2251	origflags = flags;
1804		2252
…		…
1909	EV_INVOKE_PENDING;	2357	EV_INVOKE_PENDING;
1910	}	2358	}
1911	#endif	2359	#endif
1912		2360
1913	#if EV_CHILD_ENABLE	2361	#if EV_CHILD_ENABLE
1914	if (ev_is_active (&childev))	2362	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1915	{	2363	{
1916	ev_ref (EV_A); /* child watcher */	2364	ev_ref (EV_A); /* child watcher */
1917	ev_signal_stop (EV_A_ &childev);	2365	ev_signal_stop (EV_A_ &childev);
1918	}	2366	}
1919	#endif	2367	#endif
…		…
2057	}	2505	}
2058		2506
2059	#if EV_MULTIPLICITY	2507	#if EV_MULTIPLICITY
2060		2508
2061	struct ev_loop * ecb_cold	2509	struct ev_loop * ecb_cold
2062	ev_loop_new (unsigned int flags)	2510	ev_loop_new (unsigned int flags) EV_THROW
2063	{	2511	{
2064	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2512	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2065		2513
2066	memset (EV_A, 0, sizeof (struct ev_loop));	2514	memset (EV_A, 0, sizeof (struct ev_loop));
2067	loop_init (EV_A_ flags);	2515	loop_init (EV_A_ flags);
…		…
2111	}	2559	}
2112	#endif	2560	#endif
2113		2561
2114	#if EV_FEATURE_API	2562	#if EV_FEATURE_API
2115	void ecb_cold	2563	void ecb_cold
2116	ev_verify (EV_P)	2564	ev_verify (EV_P) EV_THROW
2117	{	2565	{
2118	#if EV_VERIFY	2566	#if EV_VERIFY
2119	int i;	2567	int i;
2120	WL w;	2568	WL w, w2;
2121		2569
2122	assert (activecnt >= -1);	2570	assert (activecnt >= -1);
2123		2571
2124	assert (fdchangemax >= fdchangecnt);	2572	assert (fdchangemax >= fdchangecnt);
2125	for (i = 0; i < fdchangecnt; ++i)	2573	for (i = 0; i < fdchangecnt; ++i)
2126	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2574	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2127		2575
2128	assert (anfdmax >= 0);	2576	assert (anfdmax >= 0);
2129	for (i = 0; i < anfdmax; ++i)	2577	for (i = 0; i < anfdmax; ++i)
		2578	{
		2579	int j = 0;
		2580
2130	for (w = anfds [i].head; w; w = w->next)	2581	for (w = w2 = anfds [i].head; w; w = w->next)
2131	{	2582	{
2132	verify_watcher (EV_A_ (W)w);	2583	verify_watcher (EV_A_ (W)w);
		2584
		2585	if (j++ & 1)
		2586	{
		2587	assert (("libev: io watcher list contains a loop", w != w2));
		2588	w2 = w2->next;
		2589	}
		2590
2133	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2591	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2134	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2592	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2135	}	2593	}
		2594	}
2136		2595
2137	assert (timermax >= timercnt);	2596	assert (timermax >= timercnt);
2138	verify_heap (EV_A_ timers, timercnt);	2597	verify_heap (EV_A_ timers, timercnt);
2139		2598
2140	#if EV_PERIODIC_ENABLE	2599	#if EV_PERIODIC_ENABLE
…		…
2190	#if EV_MULTIPLICITY	2649	#if EV_MULTIPLICITY
2191	struct ev_loop * ecb_cold	2650	struct ev_loop * ecb_cold
2192	#else	2651	#else
2193	int	2652	int
2194	#endif	2653	#endif
2195	ev_default_loop (unsigned int flags)	2654	ev_default_loop (unsigned int flags) EV_THROW
2196	{	2655	{
2197	if (!ev_default_loop_ptr)	2656	if (!ev_default_loop_ptr)
2198	{	2657	{
2199	#if EV_MULTIPLICITY	2658	#if EV_MULTIPLICITY
2200	EV_P = ev_default_loop_ptr = &default_loop_struct;	2659	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2219		2678
2220	return ev_default_loop_ptr;	2679	return ev_default_loop_ptr;
2221	}	2680	}
2222		2681
2223	void	2682	void
2224	ev_loop_fork (EV_P)	2683	ev_loop_fork (EV_P) EV_THROW
2225	{	2684	{
2226	postfork = 1; /* must be in line with ev_default_fork */	2685	postfork = 1; /* must be in line with ev_default_fork */
2227	}	2686	}
2228		2687
2229	/*****************************************************************************/	2688	/*****************************************************************************/
…		…
2233	{	2692	{
2234	EV_CB_INVOKE ((W)w, revents);	2693	EV_CB_INVOKE ((W)w, revents);
2235	}	2694	}
2236		2695
2237	unsigned int	2696	unsigned int
2238	ev_pending_count (EV_P)	2697	ev_pending_count (EV_P) EV_THROW
2239	{	2698	{
2240	int pri;	2699	int pri;
2241	unsigned int count = 0;	2700	unsigned int count = 0;
2242		2701
2243	for (pri = NUMPRI; pri--; )	2702	for (pri = NUMPRI; pri--; )
…		…
2247	}	2706	}
2248		2707
2249	void noinline	2708	void noinline
2250	ev_invoke_pending (EV_P)	2709	ev_invoke_pending (EV_P)
2251	{	2710	{
2252	int pri;	2711	for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2253
2254	for (pri = NUMPRI; pri--; )
2255	while (pendingcnt [pri])	2712	while (pendingcnt [pendingpri])
2256	{	2713	{
2257	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2714	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2258		2715
2259	p->w->pending = 0;	2716	p->w->pending = 0;
2260	EV_CB_INVOKE (p->w, p->events);	2717	EV_CB_INVOKE (p->w, p->events);
2261	EV_FREQUENT_CHECK;	2718	EV_FREQUENT_CHECK;
2262	}	2719	}
…		…
2357	{	2814	{
2358	EV_FREQUENT_CHECK;	2815	EV_FREQUENT_CHECK;
2359		2816
2360	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2817	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2361	{	2818	{
2362	int feed_count = 0;
2363
2364	do	2819	do
2365	{	2820	{
2366	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2821	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2367		2822
2368	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2823	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2502		2957
2503	mn_now = ev_rt_now;	2958	mn_now = ev_rt_now;
2504	}	2959	}
2505	}	2960	}
2506		2961
2507	void	2962	int
2508	ev_run (EV_P_ int flags)	2963	ev_run (EV_P_ int flags)
2509	{	2964	{
2510	#if EV_FEATURE_API	2965	#if EV_FEATURE_API
2511	++loop_depth;	2966	++loop_depth;
2512	#endif	2967	#endif
…		…
2573	time_update (EV_A_ 1e100);	3028	time_update (EV_A_ 1e100);
2574		3029
2575	/* from now on, we want a pipe-wake-up */	3030	/* from now on, we want a pipe-wake-up */
2576	pipe_write_wanted = 1;	3031	pipe_write_wanted = 1;
2577		3032
		3033	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3034
2578	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3035	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2579	{	3036	{
2580	waittime = MAX_BLOCKTIME;	3037	waittime = MAX_BLOCKTIME;
2581		3038
2582	if (timercnt)	3039	if (timercnt)
…		…
2623	#endif	3080	#endif
2624	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3081	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2625	backend_poll (EV_A_ waittime);	3082	backend_poll (EV_A_ waittime);
2626	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3083	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2627		3084
2628	pipe_write_wanted = 0;	3085	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2629		3086
2630	if (pipe_write_skipped)	3087	if (pipe_write_skipped)
2631	{	3088	{
2632	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3089	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2633	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3090	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
…		…
2667	loop_done = EVBREAK_CANCEL;	3124	loop_done = EVBREAK_CANCEL;
2668		3125
2669	#if EV_FEATURE_API	3126	#if EV_FEATURE_API
2670	--loop_depth;	3127	--loop_depth;
2671	#endif	3128	#endif
		3129
		3130	return activecnt;
2672	}	3131	}
2673		3132
2674	void	3133	void
2675	ev_break (EV_P_ int how)	3134	ev_break (EV_P_ int how) EV_THROW
2676	{	3135	{
2677	loop_done = how;	3136	loop_done = how;
2678	}	3137	}
2679		3138
2680	void	3139	void
2681	ev_ref (EV_P)	3140	ev_ref (EV_P) EV_THROW
2682	{	3141	{
2683	++activecnt;	3142	++activecnt;
2684	}	3143	}
2685		3144
2686	void	3145	void
2687	ev_unref (EV_P)	3146	ev_unref (EV_P) EV_THROW
2688	{	3147	{
2689	--activecnt;	3148	--activecnt;
2690	}	3149	}
2691		3150
2692	void	3151	void
2693	ev_now_update (EV_P)	3152	ev_now_update (EV_P) EV_THROW
2694	{	3153	{
2695	time_update (EV_A_ 1e100);	3154	time_update (EV_A_ 1e100);
2696	}	3155	}
2697		3156
2698	void	3157	void
2699	ev_suspend (EV_P)	3158	ev_suspend (EV_P) EV_THROW
2700	{	3159	{
2701	ev_now_update (EV_A);	3160	ev_now_update (EV_A);
2702	}	3161	}
2703		3162
2704	void	3163	void
2705	ev_resume (EV_P)	3164	ev_resume (EV_P) EV_THROW
2706	{	3165	{
2707	ev_tstamp mn_prev = mn_now;	3166	ev_tstamp mn_prev = mn_now;
2708		3167
2709	ev_now_update (EV_A);	3168	ev_now_update (EV_A);
2710	timers_reschedule (EV_A_ mn_now - mn_prev);	3169	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2749	w->pending = 0;	3208	w->pending = 0;
2750	}	3209	}
2751	}	3210	}
2752		3211
2753	int	3212	int
2754	ev_clear_pending (EV_P_ void *w)	3213	ev_clear_pending (EV_P_ void *w) EV_THROW
2755	{	3214	{
2756	W w_ = (W)w;	3215	W w_ = (W)w;
2757	int pending = w_->pending;	3216	int pending = w_->pending;
2758		3217
2759	if (expect_true (pending))	3218	if (expect_true (pending))
…		…
2792	}	3251	}
2793		3252
2794	/*****************************************************************************/	3253	/*****************************************************************************/
2795		3254
2796	void noinline	3255	void noinline
2797	ev_io_start (EV_P_ ev_io *w)	3256	ev_io_start (EV_P_ ev_io *w) EV_THROW
2798	{	3257	{
2799	int fd = w->fd;	3258	int fd = w->fd;
2800		3259
2801	if (expect_false (ev_is_active (w)))	3260	if (expect_false (ev_is_active (w)))
2802	return;	3261	return;
…		…
2808		3267
2809	ev_start (EV_A_ (W)w, 1);	3268	ev_start (EV_A_ (W)w, 1);
2810	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3269	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2811	wlist_add (&anfds[fd].head, (WL)w);	3270	wlist_add (&anfds[fd].head, (WL)w);
2812		3271
		3272	/* common bug, apparently */
		3273	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3274
2813	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3275	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2814	w->events &= ~EV__IOFDSET;	3276	w->events &= ~EV__IOFDSET;
2815		3277
2816	EV_FREQUENT_CHECK;	3278	EV_FREQUENT_CHECK;
2817	}	3279	}
2818		3280
2819	void noinline	3281	void noinline
2820	ev_io_stop (EV_P_ ev_io *w)	3282	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2821	{	3283	{
2822	clear_pending (EV_A_ (W)w);	3284	clear_pending (EV_A_ (W)w);
2823	if (expect_false (!ev_is_active (w)))	3285	if (expect_false (!ev_is_active (w)))
2824	return;	3286	return;
2825		3287
…		…
2834		3296
2835	EV_FREQUENT_CHECK;	3297	EV_FREQUENT_CHECK;
2836	}	3298	}
2837		3299
2838	void noinline	3300	void noinline
2839	ev_timer_start (EV_P_ ev_timer *w)	3301	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2840	{	3302	{
2841	if (expect_false (ev_is_active (w)))	3303	if (expect_false (ev_is_active (w)))
2842	return;	3304	return;
2843		3305
2844	ev_at (w) += mn_now;	3306	ev_at (w) += mn_now;
…		…
2858		3320
2859	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3321	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2860	}	3322	}
2861		3323
2862	void noinline	3324	void noinline
2863	ev_timer_stop (EV_P_ ev_timer *w)	3325	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2864	{	3326	{
2865	clear_pending (EV_A_ (W)w);	3327	clear_pending (EV_A_ (W)w);
2866	if (expect_false (!ev_is_active (w)))	3328	if (expect_false (!ev_is_active (w)))
2867	return;	3329	return;
2868		3330
…		…
2888		3350
2889	EV_FREQUENT_CHECK;	3351	EV_FREQUENT_CHECK;
2890	}	3352	}
2891		3353
2892	void noinline	3354	void noinline
2893	ev_timer_again (EV_P_ ev_timer *w)	3355	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2894	{	3356	{
2895	EV_FREQUENT_CHECK;	3357	EV_FREQUENT_CHECK;
		3358
		3359	clear_pending (EV_A_ (W)w);
2896		3360
2897	if (ev_is_active (w))	3361	if (ev_is_active (w))
2898	{	3362	{
2899	if (w->repeat)	3363	if (w->repeat)
2900	{	3364	{
…		…
2913		3377
2914	EV_FREQUENT_CHECK;	3378	EV_FREQUENT_CHECK;
2915	}	3379	}
2916		3380
2917	ev_tstamp	3381	ev_tstamp
2918	ev_timer_remaining (EV_P_ ev_timer *w)	3382	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2919	{	3383	{
2920	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3384	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2921	}	3385	}
2922		3386
2923	#if EV_PERIODIC_ENABLE	3387	#if EV_PERIODIC_ENABLE
2924	void noinline	3388	void noinline
2925	ev_periodic_start (EV_P_ ev_periodic *w)	3389	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2926	{	3390	{
2927	if (expect_false (ev_is_active (w)))	3391	if (expect_false (ev_is_active (w)))
2928	return;	3392	return;
2929		3393
2930	if (w->reschedule_cb)	3394	if (w->reschedule_cb)
…		…
2950		3414
2951	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3415	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2952	}	3416	}
2953		3417
2954	void noinline	3418	void noinline
2955	ev_periodic_stop (EV_P_ ev_periodic *w)	3419	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2956	{	3420	{
2957	clear_pending (EV_A_ (W)w);	3421	clear_pending (EV_A_ (W)w);
2958	if (expect_false (!ev_is_active (w)))	3422	if (expect_false (!ev_is_active (w)))
2959	return;	3423	return;
2960		3424
…		…
2978		3442
2979	EV_FREQUENT_CHECK;	3443	EV_FREQUENT_CHECK;
2980	}	3444	}
2981		3445
2982	void noinline	3446	void noinline
2983	ev_periodic_again (EV_P_ ev_periodic *w)	3447	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2984	{	3448	{
2985	/* TODO: use adjustheap and recalculation */	3449	/* TODO: use adjustheap and recalculation */
2986	ev_periodic_stop (EV_A_ w);	3450	ev_periodic_stop (EV_A_ w);
2987	ev_periodic_start (EV_A_ w);	3451	ev_periodic_start (EV_A_ w);
2988	}	3452	}
…		…
2993	#endif	3457	#endif
2994		3458
2995	#if EV_SIGNAL_ENABLE	3459	#if EV_SIGNAL_ENABLE
2996		3460
2997	void noinline	3461	void noinline
2998	ev_signal_start (EV_P_ ev_signal *w)	3462	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2999	{	3463	{
3000	if (expect_false (ev_is_active (w)))	3464	if (expect_false (ev_is_active (w)))
3001	return;	3465	return;
3002		3466
3003	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3467	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3074		3538
3075	EV_FREQUENT_CHECK;	3539	EV_FREQUENT_CHECK;
3076	}	3540	}
3077		3541
3078	void noinline	3542	void noinline
3079	ev_signal_stop (EV_P_ ev_signal *w)	3543	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3080	{	3544	{
3081	clear_pending (EV_A_ (W)w);	3545	clear_pending (EV_A_ (W)w);
3082	if (expect_false (!ev_is_active (w)))	3546	if (expect_false (!ev_is_active (w)))
3083	return;	3547	return;
3084		3548
…		…
3115	#endif	3579	#endif
3116		3580
3117	#if EV_CHILD_ENABLE	3581	#if EV_CHILD_ENABLE
3118		3582
3119	void	3583	void
3120	ev_child_start (EV_P_ ev_child *w)	3584	ev_child_start (EV_P_ ev_child *w) EV_THROW
3121	{	3585	{
3122	#if EV_MULTIPLICITY	3586	#if EV_MULTIPLICITY
3123	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3587	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3124	#endif	3588	#endif
3125	if (expect_false (ev_is_active (w)))	3589	if (expect_false (ev_is_active (w)))
…		…
3132		3596
3133	EV_FREQUENT_CHECK;	3597	EV_FREQUENT_CHECK;
3134	}	3598	}
3135		3599
3136	void	3600	void
3137	ev_child_stop (EV_P_ ev_child *w)	3601	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3138	{	3602	{
3139	clear_pending (EV_A_ (W)w);	3603	clear_pending (EV_A_ (W)w);
3140	if (expect_false (!ev_is_active (w)))	3604	if (expect_false (!ev_is_active (w)))
3141	return;	3605	return;
3142		3606
…		…
3309	}	3773	}
3310		3774
3311	inline_size int	3775	inline_size int
3312	infy_newfd (void)	3776	infy_newfd (void)
3313	{	3777	{
3314	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	3778	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3315	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	3779	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3316	if (fd >= 0)	3780	if (fd >= 0)
3317	return fd;	3781	return fd;
3318	#endif	3782	#endif
3319	return inotify_init ();	3783	return inotify_init ();
…		…
3394	#else	3858	#else
3395	# define EV_LSTAT(p,b) lstat (p, b)	3859	# define EV_LSTAT(p,b) lstat (p, b)
3396	#endif	3860	#endif
3397		3861
3398	void	3862	void
3399	ev_stat_stat (EV_P_ ev_stat *w)	3863	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3400	{	3864	{
3401	if (lstat (w->path, &w->attr) < 0)	3865	if (lstat (w->path, &w->attr) < 0)
3402	w->attr.st_nlink = 0;	3866	w->attr.st_nlink = 0;
3403	else if (!w->attr.st_nlink)	3867	else if (!w->attr.st_nlink)
3404	w->attr.st_nlink = 1;	3868	w->attr.st_nlink = 1;
…		…
3443	ev_feed_event (EV_A_ w, EV_STAT);	3907	ev_feed_event (EV_A_ w, EV_STAT);
3444	}	3908	}
3445	}	3909	}
3446		3910
3447	void	3911	void
3448	ev_stat_start (EV_P_ ev_stat *w)	3912	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3449	{	3913	{
3450	if (expect_false (ev_is_active (w)))	3914	if (expect_false (ev_is_active (w)))
3451	return;	3915	return;
3452		3916
3453	ev_stat_stat (EV_A_ w);	3917	ev_stat_stat (EV_A_ w);
…		…
3474		3938
3475	EV_FREQUENT_CHECK;	3939	EV_FREQUENT_CHECK;
3476	}	3940	}
3477		3941
3478	void	3942	void
3479	ev_stat_stop (EV_P_ ev_stat *w)	3943	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3480	{	3944	{
3481	clear_pending (EV_A_ (W)w);	3945	clear_pending (EV_A_ (W)w);
3482	if (expect_false (!ev_is_active (w)))	3946	if (expect_false (!ev_is_active (w)))
3483	return;	3947	return;
3484		3948
…		…
3500	}	3964	}
3501	#endif	3965	#endif
3502		3966
3503	#if EV_IDLE_ENABLE	3967	#if EV_IDLE_ENABLE
3504	void	3968	void
3505	ev_idle_start (EV_P_ ev_idle *w)	3969	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3506	{	3970	{
3507	if (expect_false (ev_is_active (w)))	3971	if (expect_false (ev_is_active (w)))
3508	return;	3972	return;
3509		3973
3510	pri_adjust (EV_A_ (W)w);	3974	pri_adjust (EV_A_ (W)w);
…		…
3523		3987
3524	EV_FREQUENT_CHECK;	3988	EV_FREQUENT_CHECK;
3525	}	3989	}
3526		3990
3527	void	3991	void
3528	ev_idle_stop (EV_P_ ev_idle *w)	3992	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3529	{	3993	{
3530	clear_pending (EV_A_ (W)w);	3994	clear_pending (EV_A_ (W)w);
3531	if (expect_false (!ev_is_active (w)))	3995	if (expect_false (!ev_is_active (w)))
3532	return;	3996	return;
3533		3997
…		…
3547	}	4011	}
3548	#endif	4012	#endif
3549		4013
3550	#if EV_PREPARE_ENABLE	4014	#if EV_PREPARE_ENABLE
3551	void	4015	void
3552	ev_prepare_start (EV_P_ ev_prepare *w)	4016	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3553	{	4017	{
3554	if (expect_false (ev_is_active (w)))	4018	if (expect_false (ev_is_active (w)))
3555	return;	4019	return;
3556		4020
3557	EV_FREQUENT_CHECK;	4021	EV_FREQUENT_CHECK;
…		…
3562		4026
3563	EV_FREQUENT_CHECK;	4027	EV_FREQUENT_CHECK;
3564	}	4028	}
3565		4029
3566	void	4030	void
3567	ev_prepare_stop (EV_P_ ev_prepare *w)	4031	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3568	{	4032	{
3569	clear_pending (EV_A_ (W)w);	4033	clear_pending (EV_A_ (W)w);
3570	if (expect_false (!ev_is_active (w)))	4034	if (expect_false (!ev_is_active (w)))
3571	return;	4035	return;
3572		4036
…		…
3585	}	4049	}
3586	#endif	4050	#endif
3587		4051
3588	#if EV_CHECK_ENABLE	4052	#if EV_CHECK_ENABLE
3589	void	4053	void
3590	ev_check_start (EV_P_ ev_check *w)	4054	ev_check_start (EV_P_ ev_check *w) EV_THROW
3591	{	4055	{
3592	if (expect_false (ev_is_active (w)))	4056	if (expect_false (ev_is_active (w)))
3593	return;	4057	return;
3594		4058
3595	EV_FREQUENT_CHECK;	4059	EV_FREQUENT_CHECK;
…		…
3600		4064
3601	EV_FREQUENT_CHECK;	4065	EV_FREQUENT_CHECK;
3602	}	4066	}
3603		4067
3604	void	4068	void
3605	ev_check_stop (EV_P_ ev_check *w)	4069	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3606	{	4070	{
3607	clear_pending (EV_A_ (W)w);	4071	clear_pending (EV_A_ (W)w);
3608	if (expect_false (!ev_is_active (w)))	4072	if (expect_false (!ev_is_active (w)))
3609	return;	4073	return;
3610		4074
…		…
3623	}	4087	}
3624	#endif	4088	#endif
3625		4089
3626	#if EV_EMBED_ENABLE	4090	#if EV_EMBED_ENABLE
3627	void noinline	4091	void noinline
3628	ev_embed_sweep (EV_P_ ev_embed *w)	4092	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3629	{	4093	{
3630	ev_run (w->other, EVRUN_NOWAIT);	4094	ev_run (w->other, EVRUN_NOWAIT);
3631	}	4095	}
3632		4096
3633	static void	4097	static void
…		…
3681	ev_idle_stop (EV_A_ idle);	4145	ev_idle_stop (EV_A_ idle);
3682	}	4146	}
3683	#endif	4147	#endif
3684		4148
3685	void	4149	void
3686	ev_embed_start (EV_P_ ev_embed *w)	4150	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3687	{	4151	{
3688	if (expect_false (ev_is_active (w)))	4152	if (expect_false (ev_is_active (w)))
3689	return;	4153	return;
3690		4154
3691	{	4155	{
…		…
3712		4176
3713	EV_FREQUENT_CHECK;	4177	EV_FREQUENT_CHECK;
3714	}	4178	}
3715		4179
3716	void	4180	void
3717	ev_embed_stop (EV_P_ ev_embed *w)	4181	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3718	{	4182	{
3719	clear_pending (EV_A_ (W)w);	4183	clear_pending (EV_A_ (W)w);
3720	if (expect_false (!ev_is_active (w)))	4184	if (expect_false (!ev_is_active (w)))
3721	return;	4185	return;
3722		4186
…		…
3732	}	4196	}
3733	#endif	4197	#endif
3734		4198
3735	#if EV_FORK_ENABLE	4199	#if EV_FORK_ENABLE
3736	void	4200	void
3737	ev_fork_start (EV_P_ ev_fork *w)	4201	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3738	{	4202	{
3739	if (expect_false (ev_is_active (w)))	4203	if (expect_false (ev_is_active (w)))
3740	return;	4204	return;
3741		4205
3742	EV_FREQUENT_CHECK;	4206	EV_FREQUENT_CHECK;
…		…
3747		4211
3748	EV_FREQUENT_CHECK;	4212	EV_FREQUENT_CHECK;
3749	}	4213	}
3750		4214
3751	void	4215	void
3752	ev_fork_stop (EV_P_ ev_fork *w)	4216	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3753	{	4217	{
3754	clear_pending (EV_A_ (W)w);	4218	clear_pending (EV_A_ (W)w);
3755	if (expect_false (!ev_is_active (w)))	4219	if (expect_false (!ev_is_active (w)))
3756	return;	4220	return;
3757		4221
…		…
3770	}	4234	}
3771	#endif	4235	#endif
3772		4236
3773	#if EV_CLEANUP_ENABLE	4237	#if EV_CLEANUP_ENABLE
3774	void	4238	void
3775	ev_cleanup_start (EV_P_ ev_cleanup *w)	4239	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3776	{	4240	{
3777	if (expect_false (ev_is_active (w)))	4241	if (expect_false (ev_is_active (w)))
3778	return;	4242	return;
3779		4243
3780	EV_FREQUENT_CHECK;	4244	EV_FREQUENT_CHECK;
…		…
3787	ev_unref (EV_A);	4251	ev_unref (EV_A);
3788	EV_FREQUENT_CHECK;	4252	EV_FREQUENT_CHECK;
3789	}	4253	}
3790		4254
3791	void	4255	void
3792	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4256	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3793	{	4257	{
3794	clear_pending (EV_A_ (W)w);	4258	clear_pending (EV_A_ (W)w);
3795	if (expect_false (!ev_is_active (w)))	4259	if (expect_false (!ev_is_active (w)))
3796	return;	4260	return;
3797		4261
…		…
3811	}	4275	}
3812	#endif	4276	#endif
3813		4277
3814	#if EV_ASYNC_ENABLE	4278	#if EV_ASYNC_ENABLE
3815	void	4279	void
3816	ev_async_start (EV_P_ ev_async *w)	4280	ev_async_start (EV_P_ ev_async *w) EV_THROW
3817	{	4281	{
3818	if (expect_false (ev_is_active (w)))	4282	if (expect_false (ev_is_active (w)))
3819	return;	4283	return;
3820		4284
3821	w->sent = 0;	4285	w->sent = 0;
…		…
3830		4294
3831	EV_FREQUENT_CHECK;	4295	EV_FREQUENT_CHECK;
3832	}	4296	}
3833		4297
3834	void	4298	void
3835	ev_async_stop (EV_P_ ev_async *w)	4299	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3836	{	4300	{
3837	clear_pending (EV_A_ (W)w);	4301	clear_pending (EV_A_ (W)w);
3838	if (expect_false (!ev_is_active (w)))	4302	if (expect_false (!ev_is_active (w)))
3839	return;	4303	return;
3840		4304
…		…
3851		4315
3852	EV_FREQUENT_CHECK;	4316	EV_FREQUENT_CHECK;
3853	}	4317	}
3854		4318
3855	void	4319	void
3856	ev_async_send (EV_P_ ev_async *w)	4320	ev_async_send (EV_P_ ev_async *w) EV_THROW
3857	{	4321	{
3858	w->sent = 1;	4322	w->sent = 1;
3859	evpipe_write (EV_A_ &async_pending);	4323	evpipe_write (EV_A_ &async_pending);
3860	}	4324	}
3861	#endif	4325	#endif
…		…
3898		4362
3899	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4363	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3900	}	4364	}
3901		4365
3902	void	4366	void
3903	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4367	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3904	{	4368	{
3905	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4369	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3906		4370
3907	if (expect_false (!once))	4371	if (expect_false (!once))
3908	{	4372	{
…		…
3930		4394
3931	/*****************************************************************************/	4395	/*****************************************************************************/
3932		4396
3933	#if EV_WALK_ENABLE	4397	#if EV_WALK_ENABLE
3934	void ecb_cold	4398	void ecb_cold
3935	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4399	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3936	{	4400	{
3937	int i, j;	4401	int i, j;
3938	ev_watcher_list *wl, *wn;	4402	ev_watcher_list *wl, *wn;
3939		4403
3940	if (types & (EV_IO | EV_EMBED))	4404	if (types & (EV_IO | EV_EMBED))
…		…
3983	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4447	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3984	#endif	4448	#endif
3985		4449
3986	#if EV_IDLE_ENABLE	4450	#if EV_IDLE_ENABLE
3987	if (types & EV_IDLE)	4451	if (types & EV_IDLE)
3988	for (j = NUMPRI; i--; )	4452	for (j = NUMPRI; j--; )
3989	for (i = idlecnt [j]; i--; )	4453	for (i = idlecnt [j]; i--; )
3990	cb (EV_A_ EV_IDLE, idles [j][i]);	4454	cb (EV_A_ EV_IDLE, idles [j][i]);
3991	#endif	4455	#endif
3992		4456
3993	#if EV_FORK_ENABLE	4457	#if EV_FORK_ENABLE
…		…
4046		4510
4047	#if EV_MULTIPLICITY	4511	#if EV_MULTIPLICITY
4048	#include "ev_wrap.h"	4512	#include "ev_wrap.h"
4049	#endif	4513	#endif
4050		4514
4051	EV_CPP(})
4052

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