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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 1.427 by root, Sun May 6 19:29:59 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>
…		…
210	#define _DARWIN_UNLIMITED_SELECT 1	219	#define _DARWIN_UNLIMITED_SELECT 1
211		220
212	/* this block tries to deduce configuration from header-defined symbols and defaults */	221	/* this block tries to deduce configuration from header-defined symbols and defaults */
213		222
214	/* try to deduce the maximum number of signals on this platform */	223	/* try to deduce the maximum number of signals on this platform */
215	#if defined (EV_NSIG)	224	#if defined EV_NSIG
216	/* use what's provided */	225	/* use what's provided */
217	#elif defined (NSIG)	226	#elif defined NSIG
218	# define EV_NSIG (NSIG)	227	# define EV_NSIG (NSIG)
219	#elif defined(_NSIG)	228	#elif defined _NSIG
220	# define EV_NSIG (_NSIG)	229	# define EV_NSIG (_NSIG)
221	#elif defined (SIGMAX)	230	#elif defined SIGMAX
222	# define EV_NSIG (SIGMAX+1)	231	# define EV_NSIG (SIGMAX+1)
223	#elif defined (SIG_MAX)	232	#elif defined SIG_MAX
224	# define EV_NSIG (SIG_MAX+1)	233	# define EV_NSIG (SIG_MAX+1)
225	#elif defined (_SIG_MAX)	234	#elif defined _SIG_MAX
226	# define EV_NSIG (_SIG_MAX+1)	235	# define EV_NSIG (_SIG_MAX+1)
227	#elif defined (MAXSIG)	236	#elif defined MAXSIG
228	# define EV_NSIG (MAXSIG+1)	237	# define EV_NSIG (MAXSIG+1)
229	#elif defined (MAX_SIG)	238	#elif defined MAX_SIG
230	# define EV_NSIG (MAX_SIG+1)	239	# define EV_NSIG (MAX_SIG+1)
231	#elif defined (SIGARRAYSIZE)	240	#elif defined SIGARRAYSIZE
232	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	241	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233	#elif defined (_sys_nsig)	242	#elif defined _sys_nsig
234	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	243	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235	#else	244	#else
236	# error "unable to find value for NSIG, please report"	245	# error "unable to find value for NSIG, please report"
237	/* to make it compile regardless, just remove the above line, */	246	/* to make it compile regardless, just remove the above line, */
238	/* but consider reporting it, too! :) */	247	/* but consider reporting it, too! :) */
…		…
250	# define EV_USE_CLOCK_SYSCALL 0	259	# define EV_USE_CLOCK_SYSCALL 0
251	# endif	260	# endif
252	#endif	261	#endif
253		262
254	#ifndef EV_USE_MONOTONIC	263	#ifndef EV_USE_MONOTONIC
255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	264	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256	# define EV_USE_MONOTONIC EV_FEATURE_OS	265	# define EV_USE_MONOTONIC EV_FEATURE_OS
257	# else	266	# else
258	# define EV_USE_MONOTONIC 0	267	# define EV_USE_MONOTONIC 0
259	# endif	268	# endif
260	#endif	269	#endif
…		…
350	#endif	359	#endif
351		360
352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	361	/* 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. */	362	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	363	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	364	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	365	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	366	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	367	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	368	# define EV_USE_MONOTONIC 1
360	# else	369	# else
…		…
386	# define EV_USE_INOTIFY 0	395	# define EV_USE_INOTIFY 0
387	#endif	396	#endif
388		397
389	#if !EV_USE_NANOSLEEP	398	#if !EV_USE_NANOSLEEP
390	/* hp-ux has it in sys/time.h, which we unconditionally include above */	399	/* hp-ux has it in sys/time.h, which we unconditionally include above */
391	# if !defined(_WIN32) && !defined(__hpux)	400	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	401	# include <sys/select.h>
393	# endif	402	# endif
394	#endif	403	#endif
395		404
396	#if EV_USE_INOTIFY	405	#if EV_USE_INOTIFY
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	473	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		474
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	475	#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)	476	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		477
469	/* the following are taken from libecb */	478	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470	/* ecb.h start */	479	/* ECB.H BEGIN */
		480	/*
		481	* libecb - http://software.schmorp.de/pkg/libecb
		482	*
		483	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		484	* Copyright (©) 2011 Emanuele Giaquinta
		485	* All rights reserved.
		486	*
		487	* Redistribution and use in source and binary forms, with or without modifica-
		488	* tion, are permitted provided that the following conditions are met:
		489	*
		490	* 1. Redistributions of source code must retain the above copyright notice,
		491	* this list of conditions and the following disclaimer.
		492	*
		493	* 2. Redistributions in binary form must reproduce the above copyright
		494	* notice, this list of conditions and the following disclaimer in the
		495	* documentation and/or other materials provided with the distribution.
		496	*
		497	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		498	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		499	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		500	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		501	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		502	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		503	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		504	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		505	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		506	* OF THE POSSIBILITY OF SUCH DAMAGE.
		507	*/
		508
		509	#ifndef ECB_H
		510	#define ECB_H
		511
		512	#ifdef _WIN32
		513	typedef signed char int8_t;
		514	typedef unsigned char uint8_t;
		515	typedef signed short int16_t;
		516	typedef unsigned short uint16_t;
		517	typedef signed int int32_t;
		518	typedef unsigned int uint32_t;
		519	#if __GNUC__
		520	typedef signed long long int64_t;
		521	typedef unsigned long long uint64_t;
		522	#else /* _MSC_VER || __BORLANDC__ */
		523	typedef signed __int64 int64_t;
		524	typedef unsigned __int64 uint64_t;
		525	#endif
		526	#else
		527	#include <inttypes.h>
		528	#endif
471		529
472	/* many compilers define _GNUC_ to some versions but then only implement	530	/* many compilers define _GNUC_ to some versions but then only implement
473	* what their idiot authors think are the "more important" extensions,	531	* what their idiot authors think are the "more important" extensions,
474	* causing enourmous grief in return for some better fake benchmark numbers.	532	* causing enormous grief in return for some better fake benchmark numbers.
475	* or so.	533	* or so.
476	* we try to detect these and simply assume they are not gcc - if they have	534	* 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.	535	* an issue with that they should have done it right in the first place.
478	*/	536	*/
479	#ifndef ECB_GCC_VERSION	537	#ifndef ECB_GCC_VERSION
480	#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)	538	#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	539	#define ECB_GCC_VERSION(major,minor) 0
482	#else	540	#else
483	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484	#endif	542	#endif
485	#endif	543	#endif
		544
		545	/*****************************************************************************/
		546
		547	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		548	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		549
		550	#if ECB_NO_THREADS
		551	# define ECB_NO_SMP 1
		552	#endif
		553
		554	#if ECB_NO_THREADS || ECB_NO_SMP
		555	#define ECB_MEMORY_FENCE do { } while (0)
		556	#endif
		557
		558	#ifndef ECB_MEMORY_FENCE
		559	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		560	#if __i386 || __i386__
		561	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		562	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
		563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		564	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		567	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		568	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		570	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		571	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		572	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		573	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		574	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		576	#elif __sparc || __sparc__
		577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
		578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		580	#elif defined __s390__ || defined __s390x__
		581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		582	#elif defined __mips__
		583	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		584	#elif defined __alpha__
		585	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		586	#endif
		587	#endif
		588	#endif
		589
		590	#ifndef ECB_MEMORY_FENCE
		591	#if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		592	#define ECB_MEMORY_FENCE __sync_synchronize ()
		593	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
		594	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
		595	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		596	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		597	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		598	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		599	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		600	#elif defined _WIN32
		601	#include <WinNT.h>
		602	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		603	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		604	#include <mbarrier.h>
		605	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		606	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		607	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		608	#elif __xlC__
		609	#define ECB_MEMORY_FENCE __sync ()
		610	#endif
		611	#endif
		612
		613	#ifndef ECB_MEMORY_FENCE
		614	#if !ECB_AVOID_PTHREADS
		615	/*
		616	* if you get undefined symbol references to pthread_mutex_lock,
		617	* or failure to find pthread.h, then you should implement
		618	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		619	* OR provide pthread.h and link against the posix thread library
		620	* of your system.
		621	*/
		622	#include <pthread.h>
		623	#define ECB_NEEDS_PTHREADS 1
		624	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		625
		626	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		627	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		628	#endif
		629	#endif
		630
		631	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		632	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		633	#endif
		634
		635	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		636	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		637	#endif
		638
		639	/*****************************************************************************/
		640
		641	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
486		642
487	#if __cplusplus	643	#if __cplusplus
488	#define ecb_inline static inline	644	#define ecb_inline static inline
489	#elif ECB_GCC_VERSION(2,5)	645	#elif ECB_GCC_VERSION(2,5)
490	#define ecb_inline static __inline__	646	#define ecb_inline static __inline__
491	#elif ECB_C99	647	#elif ECB_C99
492	#define ecb_inline static inline	648	#define ecb_inline static inline
493	#else	649	#else
494	#define ecb_inline static	650	#define ecb_inline static
495	#endif	651	#endif
		652
		653	#if ECB_GCC_VERSION(3,3)
		654	#define ecb_restrict __restrict__
		655	#elif ECB_C99
		656	#define ecb_restrict restrict
		657	#else
		658	#define ecb_restrict
		659	#endif
		660
		661	typedef int ecb_bool;
		662
		663	#define ECB_CONCAT_(a, b) a ## b
		664	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		665	#define ECB_STRINGIFY_(a) # a
		666	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		667
		668	#define ecb_function_ ecb_inline
496		669
497	#if ECB_GCC_VERSION(3,1)	670	#if ECB_GCC_VERSION(3,1)
498	#define ecb_attribute(attrlist) __attribute__(attrlist)	671	#define ecb_attribute(attrlist) __attribute__(attrlist)
499	#define ecb_is_constant(expr) __builtin_constant_p (expr)	672	#define ecb_is_constant(expr) __builtin_constant_p (expr)
500	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	673	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
…		…
504	#define ecb_is_constant(expr) 0	677	#define ecb_is_constant(expr) 0
505	#define ecb_expect(expr,value) (expr)	678	#define ecb_expect(expr,value) (expr)
506	#define ecb_prefetch(addr,rw,locality)	679	#define ecb_prefetch(addr,rw,locality)
507	#endif	680	#endif
508		681
		682	/* no emulation for ecb_decltype */
		683	#if ECB_GCC_VERSION(4,5)
		684	#define ecb_decltype(x) __decltype(x)
		685	#elif ECB_GCC_VERSION(3,0)
		686	#define ecb_decltype(x) __typeof(x)
		687	#endif
		688
509	#define ecb_noinline ecb_attribute ((__noinline__))	689	#define ecb_noinline ecb_attribute ((__noinline__))
510	#define ecb_noreturn ecb_attribute ((__noreturn__))	690	#define ecb_noreturn ecb_attribute ((__noreturn__))
511	#define ecb_unused ecb_attribute ((__unused__))	691	#define ecb_unused ecb_attribute ((__unused__))
512	#define ecb_const ecb_attribute ((__const__))	692	#define ecb_const ecb_attribute ((__const__))
513	#define ecb_pure ecb_attribute ((__pure__))	693	#define ecb_pure ecb_attribute ((__pure__))
…		…
525	/* put around conditional expressions if you are very sure that the */	705	/* put around conditional expressions if you are very sure that the */
526	/* expression is mostly true or mostly false. note that these return */	706	/* expression is mostly true or mostly false. note that these return */
527	/* booleans, not the expression. */	707	/* booleans, not the expression. */
528	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)	708	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
529	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)	709	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530	/* ecb.h end */	710	/* for compatibility to the rest of the world */
		711	#define ecb_likely(expr) ecb_expect_true (expr)
		712	#define ecb_unlikely(expr) ecb_expect_false (expr)
		713
		714	/* count trailing zero bits and count # of one bits */
		715	#if ECB_GCC_VERSION(3,4)
		716	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		717	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		718	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		719	#define ecb_ctz32(x) __builtin_ctz (x)
		720	#define ecb_ctz64(x) __builtin_ctzll (x)
		721	#define ecb_popcount32(x) __builtin_popcount (x)
		722	/* no popcountll */
		723	#else
		724	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		725	ecb_function_ int
		726	ecb_ctz32 (uint32_t x)
		727	{
		728	int r = 0;
		729
		730	x &= ~x + 1; /* this isolates the lowest bit */
		731
		732	#if ECB_branchless_on_i386
		733	r += !!(x & 0xaaaaaaaa) << 0;
		734	r += !!(x & 0xcccccccc) << 1;
		735	r += !!(x & 0xf0f0f0f0) << 2;
		736	r += !!(x & 0xff00ff00) << 3;
		737	r += !!(x & 0xffff0000) << 4;
		738	#else
		739	if (x & 0xaaaaaaaa) r += 1;
		740	if (x & 0xcccccccc) r += 2;
		741	if (x & 0xf0f0f0f0) r += 4;
		742	if (x & 0xff00ff00) r += 8;
		743	if (x & 0xffff0000) r += 16;
		744	#endif
		745
		746	return r;
		747	}
		748
		749	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		750	ecb_function_ int
		751	ecb_ctz64 (uint64_t x)
		752	{
		753	int shift = x & 0xffffffffU ? 0 : 32;
		754	return ecb_ctz32 (x >> shift) + shift;
		755	}
		756
		757	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		758	ecb_function_ int
		759	ecb_popcount32 (uint32_t x)
		760	{
		761	x -= (x >> 1) & 0x55555555;
		762	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		763	x = ((x >> 4) + x) & 0x0f0f0f0f;
		764	x *= 0x01010101;
		765
		766	return x >> 24;
		767	}
		768
		769	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		770	ecb_function_ int ecb_ld32 (uint32_t x)
		771	{
		772	int r = 0;
		773
		774	if (x >> 16) { x >>= 16; r += 16; }
		775	if (x >> 8) { x >>= 8; r += 8; }
		776	if (x >> 4) { x >>= 4; r += 4; }
		777	if (x >> 2) { x >>= 2; r += 2; }
		778	if (x >> 1) { r += 1; }
		779
		780	return r;
		781	}
		782
		783	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		784	ecb_function_ int ecb_ld64 (uint64_t x)
		785	{
		786	int r = 0;
		787
		788	if (x >> 32) { x >>= 32; r += 32; }
		789
		790	return r + ecb_ld32 (x);
		791	}
		792	#endif
		793
		794	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		795	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		796	{
		797	return ( (x * 0x0802U & 0x22110U)
		798	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		799	}
		800
		801	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		802	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		803	{
		804	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		805	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		806	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		807	x = ( x >> 8 ) | ( x << 8);
		808
		809	return x;
		810	}
		811
		812	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		813	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		814	{
		815	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		816	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		817	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		818	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		819	x = ( x >> 16 ) | ( x << 16);
		820
		821	return x;
		822	}
		823
		824	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		825	/* so for this version we are lazy */
		826	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		827	ecb_function_ int
		828	ecb_popcount64 (uint64_t x)
		829	{
		830	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		831	}
		832
		833	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		834	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		835	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		836	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		837	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		838	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		839	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		840	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		841
		842	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		843	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		844	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		845	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		846	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		847	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		848	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		849	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		850
		851	#if ECB_GCC_VERSION(4,3)
		852	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		853	#define ecb_bswap32(x) __builtin_bswap32 (x)
		854	#define ecb_bswap64(x) __builtin_bswap64 (x)
		855	#else
		856	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		857	ecb_function_ uint16_t
		858	ecb_bswap16 (uint16_t x)
		859	{
		860	return ecb_rotl16 (x, 8);
		861	}
		862
		863	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		864	ecb_function_ uint32_t
		865	ecb_bswap32 (uint32_t x)
		866	{
		867	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		868	}
		869
		870	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		871	ecb_function_ uint64_t
		872	ecb_bswap64 (uint64_t x)
		873	{
		874	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		875	}
		876	#endif
		877
		878	#if ECB_GCC_VERSION(4,5)
		879	#define ecb_unreachable() __builtin_unreachable ()
		880	#else
		881	/* this seems to work fine, but gcc always emits a warning for it :/ */
		882	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		883	ecb_inline void ecb_unreachable (void) { }
		884	#endif
		885
		886	/* try to tell the compiler that some condition is definitely true */
		887	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		888
		889	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		890	ecb_inline unsigned char
		891	ecb_byteorder_helper (void)
		892	{
		893	const uint32_t u = 0x11223344;
		894	return *(unsigned char *)&u;
		895	}
		896
		897	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		898	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		899	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		900	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		901
		902	#if ECB_GCC_VERSION(3,0) || ECB_C99
		903	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		904	#else
		905	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		906	#endif
		907
		908	#if __cplusplus
		909	template<typename T>
		910	static inline T ecb_div_rd (T val, T div)
		911	{
		912	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		913	}
		914	template<typename T>
		915	static inline T ecb_div_ru (T val, T div)
		916	{
		917	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		918	}
		919	#else
		920	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		921	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		922	#endif
		923
		924	#if ecb_cplusplus_does_not_suck
		925	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		926	template<typename T, int N>
		927	static inline int ecb_array_length (const T (&arr)[N])
		928	{
		929	return N;
		930	}
		931	#else
		932	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		933	#endif
		934
		935	#endif
		936
		937	/* ECB.H END */
		938
		939	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		940	/* if your architecture doesn't need memory fences, e.g. because it is
		941	* single-cpu/core, or if you use libev in a project that doesn't use libev
		942	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		943	* libev, in which cases the memory fences become nops.
		944	* alternatively, you can remove this #error and link against libpthread,
		945	* which will then provide the memory fences.
		946	*/
		947	# error "memory fences not defined for your architecture, please report"
		948	#endif
		949
		950	#ifndef ECB_MEMORY_FENCE
		951	# define ECB_MEMORY_FENCE do { } while (0)
		952	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		953	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		954	#endif
531		955
532	#define expect_false(cond) ecb_expect_false (cond)	956	#define expect_false(cond) ecb_expect_false (cond)
533	#define expect_true(cond) ecb_expect_true (cond)	957	#define expect_true(cond) ecb_expect_true (cond)
534	#define noinline ecb_noinline	958	#define noinline ecb_noinline
535		959
…		…
681	{	1105	{
682	write (STDERR_FILENO, msg, strlen (msg));	1106	write (STDERR_FILENO, msg, strlen (msg));
683	}	1107	}
684	#endif	1108	#endif
685		1109
686	static void (*syserr_cb)(const char *msg);	1110	static void (*syserr_cb)(const char *msg) EV_THROW;
687		1111
688	void ecb_cold	1112	void ecb_cold
689	ev_set_syserr_cb (void (*cb)(const char *msg))	1113	ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
690	{	1114	{
691	syserr_cb = cb;	1115	syserr_cb = cb;
692	}	1116	}
693		1117
694	static void noinline ecb_cold	1118	static void noinline ecb_cold
…		…
730	free (ptr);	1154	free (ptr);
731	return 0;	1155	return 0;
732	#endif	1156	#endif
733	}	1157	}
734		1158
735	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1159	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
736		1160
737	void ecb_cold	1161	void ecb_cold
738	ev_set_allocator (void *(*cb)(void *ptr, long size))	1162	ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
739	{	1163	{
740	alloc = cb;	1164	alloc = cb;
741	}	1165	}
742		1166
743	inline_speed void *	1167	inline_speed void *
…		…
831	#undef VAR	1255	#undef VAR
832	};	1256	};
833	#include "ev_wrap.h"	1257	#include "ev_wrap.h"
834		1258
835	static struct ev_loop default_loop_struct;	1259	static struct ev_loop default_loop_struct;
836	struct ev_loop *ev_default_loop_ptr;	1260	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
837		1261
838	#else	1262	#else
839		1263
840	ev_tstamp ev_rt_now;	1264	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;	1265	#define VAR(name,decl) static decl;
842	#include "ev_vars.h"	1266	#include "ev_vars.h"
843	#undef VAR	1267	#undef VAR
844		1268
845	static int ev_default_loop_ptr;	1269	static int ev_default_loop_ptr;
…		…
860		1284
861	/*****************************************************************************/	1285	/*****************************************************************************/
862		1286
863	#ifndef EV_HAVE_EV_TIME	1287	#ifndef EV_HAVE_EV_TIME
864	ev_tstamp	1288	ev_tstamp
865	ev_time (void)	1289	ev_time (void) EV_THROW
866	{	1290	{
867	#if EV_USE_REALTIME	1291	#if EV_USE_REALTIME
868	if (expect_true (have_realtime))	1292	if (expect_true (have_realtime))
869	{	1293	{
870	struct timespec ts;	1294	struct timespec ts;
…		…
894	return ev_time ();	1318	return ev_time ();
895	}	1319	}
896		1320
897	#if EV_MULTIPLICITY	1321	#if EV_MULTIPLICITY
898	ev_tstamp	1322	ev_tstamp
899	ev_now (EV_P)	1323	ev_now (EV_P) EV_THROW
900	{	1324	{
901	return ev_rt_now;	1325	return ev_rt_now;
902	}	1326	}
903	#endif	1327	#endif
904		1328
905	void	1329	void
906	ev_sleep (ev_tstamp delay)	1330	ev_sleep (ev_tstamp delay) EV_THROW
907	{	1331	{
908	if (delay > 0.)	1332	if (delay > 0.)
909	{	1333	{
910	#if EV_USE_NANOSLEEP	1334	#if EV_USE_NANOSLEEP
911	struct timespec ts;	1335	struct timespec ts;
912		1336
913	EV_TS_SET (ts, delay);	1337	EV_TS_SET (ts, delay);
914	nanosleep (&ts, 0);	1338	nanosleep (&ts, 0);
915	#elif defined(_WIN32)	1339	#elif defined _WIN32
916	Sleep ((unsigned long)(delay * 1e3));	1340	Sleep ((unsigned long)(delay * 1e3));
917	#else	1341	#else
918	struct timeval tv;	1342	struct timeval tv;
919		1343
920	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1344	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
939		1363
940	do	1364	do
941	ncur <<= 1;	1365	ncur <<= 1;
942	while (cnt > ncur);	1366	while (cnt > ncur);
943		1367
944	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1368	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
945	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1369	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
946	{	1370	{
947	ncur *= elem;	1371	ncur *= elem;
948	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1372	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
949	ncur = ncur - sizeof (void *) * 4;	1373	ncur = ncur - sizeof (void *) * 4;
…		…
964	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1388	memset ((void *)(base), 0, sizeof (*(base)) * (count))
965		1389
966	#define array_needsize(type,base,cur,cnt,init) \	1390	#define array_needsize(type,base,cur,cnt,init) \
967	if (expect_false ((cnt) > (cur))) \	1391	if (expect_false ((cnt) > (cur))) \
968	{ \	1392	{ \
969	int ocur_ = (cur); \	1393	int ecb_unused ocur_ = (cur); \
970	(base) = (type *)array_realloc \	1394	(base) = (type *)array_realloc \
971	(sizeof (type), (base), &(cur), (cnt)); \	1395	(sizeof (type), (base), &(cur), (cnt)); \
972	init ((base) + (ocur_), (cur) - ocur_); \	1396	init ((base) + (ocur_), (cur) - ocur_); \
973	}	1397	}
974		1398
…		…
992	pendingcb (EV_P_ ev_prepare *w, int revents)	1416	pendingcb (EV_P_ ev_prepare *w, int revents)
993	{	1417	{
994	}	1418	}
995		1419
996	void noinline	1420	void noinline
997	ev_feed_event (EV_P_ void *w, int revents)	1421	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
998	{	1422	{
999	W w_ = (W)w;	1423	W w_ = (W)w;
1000	int pri = ABSPRI (w_);	1424	int pri = ABSPRI (w_);
1001		1425
1002	if (expect_false (w_->pending))	1426	if (expect_false (w_->pending))
…		…
1006	w_->pending = ++pendingcnt [pri];	1430	w_->pending = ++pendingcnt [pri];
1007	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1431	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1008	pendings [pri][w_->pending - 1].w = w_;	1432	pendings [pri][w_->pending - 1].w = w_;
1009	pendings [pri][w_->pending - 1].events = revents;	1433	pendings [pri][w_->pending - 1].events = revents;
1010	}	1434	}
		1435
		1436	pendingpri = NUMPRI - 1;
1011	}	1437	}
1012		1438
1013	inline_speed void	1439	inline_speed void
1014	feed_reverse (EV_P_ W w)	1440	feed_reverse (EV_P_ W w)
1015	{	1441	{
…		…
1061	if (expect_true (!anfd->reify))	1487	if (expect_true (!anfd->reify))
1062	fd_event_nocheck (EV_A_ fd, revents);	1488	fd_event_nocheck (EV_A_ fd, revents);
1063	}	1489	}
1064		1490
1065	void	1491	void
1066	ev_feed_fd_event (EV_P_ int fd, int revents)	1492	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1067	{	1493	{
1068	if (fd >= 0 && fd < anfdmax)	1494	if (fd >= 0 && fd < anfdmax)
1069	fd_event_nocheck (EV_A_ fd, revents);	1495	fd_event_nocheck (EV_A_ fd, revents);
1070	}	1496	}
1071		1497
…		…
1417	ev_io_start (EV_A_ &pipe_w);	1843	ev_io_start (EV_A_ &pipe_w);
1418	ev_unref (EV_A); /* watcher should not keep loop alive */	1844	ev_unref (EV_A); /* watcher should not keep loop alive */
1419	}	1845	}
1420	}	1846	}
1421		1847
1422	inline_size void	1848	inline_speed void
1423	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1849	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1424	{	1850	{
1425	if (!*flag)	1851	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1426	{	1852
		1853	if (expect_true (*flag))
		1854	return;
		1855
1427	*flag = 1;	1856	*flag = 1;
1428		1857
		1858	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1859
1429	pipe_write_skipped = 1;	1860	pipe_write_skipped = 1;
1430		1861
		1862	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1863
1431	if (pipe_write_wanted)	1864	if (pipe_write_wanted)
		1865	{
		1866	int old_errno;
		1867
		1868	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1869
		1870	old_errno = errno; /* save errno because write will clobber it */
		1871
		1872	#if EV_USE_EVENTFD
		1873	if (evfd >= 0)
1432	{	1874	{
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;	1875	uint64_t counter = 1;
1442	write (evfd, &counter, sizeof (uint64_t));	1876	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	}	1877	}
		1878	else
		1879	#endif
		1880	{
		1881	#ifdef _WIN32
		1882	WSABUF buf;
		1883	DWORD sent;
		1884	buf.buf = &buf;
		1885	buf.len = 1;
		1886	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		1887	#else
		1888	write (evpipe [1], &(evpipe [1]), 1);
		1889	#endif
		1890	}
		1891
		1892	errno = old_errno;
1457	}	1893	}
1458	}	1894	}
1459		1895
1460	/* called whenever the libev signal pipe */	1896	/* called whenever the libev signal pipe */
1461	/* got some events (signal, async) */	1897	/* got some events (signal, async) */
…		…
1473	read (evfd, &counter, sizeof (uint64_t));	1909	read (evfd, &counter, sizeof (uint64_t));
1474	}	1910	}
1475	else	1911	else
1476	#endif	1912	#endif
1477	{	1913	{
1478	char dummy;	1914	char dummy[4];
1479	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1915	#ifdef _WIN32
		1916	WSABUF buf;
		1917	DWORD recvd;
		1918	buf.buf = dummy;
		1919	buf.len = sizeof (dummy);
		1920	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
		1921	#else
1480	read (evpipe [0], &dummy, 1);	1922	read (evpipe [0], &dummy, sizeof (dummy));
		1923	#endif
1481	}	1924	}
1482	}	1925	}
1483		1926
1484	pipe_write_skipped = 0;	1927	pipe_write_skipped = 0;
		1928
		1929	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1485		1930
1486	#if EV_SIGNAL_ENABLE	1931	#if EV_SIGNAL_ENABLE
1487	if (sig_pending)	1932	if (sig_pending)
1488	{	1933	{
1489	sig_pending = 0;	1934	sig_pending = 0;
		1935
		1936	ECB_MEMORY_FENCE_RELEASE;
1490		1937
1491	for (i = EV_NSIG - 1; i--; )	1938	for (i = EV_NSIG - 1; i--; )
1492	if (expect_false (signals [i].pending))	1939	if (expect_false (signals [i].pending))
1493	ev_feed_signal_event (EV_A_ i + 1);	1940	ev_feed_signal_event (EV_A_ i + 1);
1494	}	1941	}
…		…
1496		1943
1497	#if EV_ASYNC_ENABLE	1944	#if EV_ASYNC_ENABLE
1498	if (async_pending)	1945	if (async_pending)
1499	{	1946	{
1500	async_pending = 0;	1947	async_pending = 0;
		1948
		1949	ECB_MEMORY_FENCE_RELEASE;
1501		1950
1502	for (i = asynccnt; i--; )	1951	for (i = asynccnt; i--; )
1503	if (asyncs [i]->sent)	1952	if (asyncs [i]->sent)
1504	{	1953	{
1505	asyncs [i]->sent = 0;	1954	asyncs [i]->sent = 0;
…		…
1510	}	1959	}
1511		1960
1512	/*****************************************************************************/	1961	/*****************************************************************************/
1513		1962
1514	void	1963	void
1515	ev_feed_signal (int signum)	1964	ev_feed_signal (int signum) EV_THROW
1516	{	1965	{
1517	#if EV_MULTIPLICITY	1966	#if EV_MULTIPLICITY
1518	EV_P = signals [signum - 1].loop;	1967	EV_P = signals [signum - 1].loop;
1519		1968
1520	if (!EV_A)	1969	if (!EV_A)
1521	return;	1970	return;
1522	#endif	1971	#endif
1523		1972
1524	evpipe_init (EV_A);	1973	if (!ev_active (&pipe_w))
		1974	return;
1525		1975
1526	signals [signum - 1].pending = 1;	1976	signals [signum - 1].pending = 1;
1527	evpipe_write (EV_A_ &sig_pending);	1977	evpipe_write (EV_A_ &sig_pending);
1528	}	1978	}
1529		1979
…		…
1536		1986
1537	ev_feed_signal (signum);	1987	ev_feed_signal (signum);
1538	}	1988	}
1539		1989
1540	void noinline	1990	void noinline
1541	ev_feed_signal_event (EV_P_ int signum)	1991	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1542	{	1992	{
1543	WL w;	1993	WL w;
1544		1994
1545	if (expect_false (signum <= 0 || signum > EV_NSIG))	1995	if (expect_false (signum <= 0 || signum > EV_NSIG))
1546	return;	1996	return;
…		…
1662	#if EV_USE_SELECT	2112	#if EV_USE_SELECT
1663	# include "ev_select.c"	2113	# include "ev_select.c"
1664	#endif	2114	#endif
1665		2115
1666	int ecb_cold	2116	int ecb_cold
1667	ev_version_major (void)	2117	ev_version_major (void) EV_THROW
1668	{	2118	{
1669	return EV_VERSION_MAJOR;	2119	return EV_VERSION_MAJOR;
1670	}	2120	}
1671		2121
1672	int ecb_cold	2122	int ecb_cold
1673	ev_version_minor (void)	2123	ev_version_minor (void) EV_THROW
1674	{	2124	{
1675	return EV_VERSION_MINOR;	2125	return EV_VERSION_MINOR;
1676	}	2126	}
1677		2127
1678	/* 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 */
…		…
1686	|| getgid () != getegid ();	2136	|| getgid () != getegid ();
1687	#endif	2137	#endif
1688	}	2138	}
1689		2139
1690	unsigned int ecb_cold	2140	unsigned int ecb_cold
1691	ev_supported_backends (void)	2141	ev_supported_backends (void) EV_THROW
1692	{	2142	{
1693	unsigned int flags = 0;	2143	unsigned int flags = 0;
1694		2144
1695	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2145	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1696	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2146	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1700		2150
1701	return flags;	2151	return flags;
1702	}	2152	}
1703		2153
1704	unsigned int ecb_cold	2154	unsigned int ecb_cold
1705	ev_recommended_backends (void)	2155	ev_recommended_backends (void) EV_THROW
1706	{	2156	{
1707	unsigned int flags = ev_supported_backends ();	2157	unsigned int flags = ev_supported_backends ();
1708		2158
1709	#ifndef __NetBSD__	2159	#ifndef __NetBSD__
1710	/* kqueue is borked on everything but netbsd apparently */	2160	/* kqueue is borked on everything but netbsd apparently */
…		…
1722		2172
1723	return flags;	2173	return flags;
1724	}	2174	}
1725		2175
1726	unsigned int ecb_cold	2176	unsigned int ecb_cold
1727	ev_embeddable_backends (void)	2177	ev_embeddable_backends (void) EV_THROW
1728	{	2178	{
1729	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2179	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1730		2180
1731	/* 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 */
1732	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 */
…		…
1734		2184
1735	return flags;	2185	return flags;
1736	}	2186	}
1737		2187
1738	unsigned int	2188	unsigned int
1739	ev_backend (EV_P)	2189	ev_backend (EV_P) EV_THROW
1740	{	2190	{
1741	return backend;	2191	return backend;
1742	}	2192	}
1743		2193
1744	#if EV_FEATURE_API	2194	#if EV_FEATURE_API
1745	unsigned int	2195	unsigned int
1746	ev_iteration (EV_P)	2196	ev_iteration (EV_P) EV_THROW
1747	{	2197	{
1748	return loop_count;	2198	return loop_count;
1749	}	2199	}
1750		2200
1751	unsigned int	2201	unsigned int
1752	ev_depth (EV_P)	2202	ev_depth (EV_P) EV_THROW
1753	{	2203	{
1754	return loop_depth;	2204	return loop_depth;
1755	}	2205	}
1756		2206
1757	void	2207	void
1758	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2208	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1759	{	2209	{
1760	io_blocktime = interval;	2210	io_blocktime = interval;
1761	}	2211	}
1762		2212
1763	void	2213	void
1764	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2214	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1765	{	2215	{
1766	timeout_blocktime = interval;	2216	timeout_blocktime = interval;
1767	}	2217	}
1768		2218
1769	void	2219	void
1770	ev_set_userdata (EV_P_ void *data)	2220	ev_set_userdata (EV_P_ void *data) EV_THROW
1771	{	2221	{
1772	userdata = data;	2222	userdata = data;
1773	}	2223	}
1774		2224
1775	void *	2225	void *
1776	ev_userdata (EV_P)	2226	ev_userdata (EV_P) EV_THROW
1777	{	2227	{
1778	return userdata;	2228	return userdata;
1779	}	2229	}
1780		2230
1781	void	2231	void
1782	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
1783	{	2233	{
1784	invoke_cb = invoke_pending_cb;	2234	invoke_cb = invoke_pending_cb;
1785	}	2235	}
1786		2236
1787	void	2237	void
1788	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
1789	{	2239	{
1790	release_cb = release;	2240	release_cb = release;
1791	acquire_cb = acquire;	2241	acquire_cb = acquire;
1792	}	2242	}
1793	#endif	2243	#endif
1794		2244
1795	/* initialise a loop structure, must be zero-initialised */	2245	/* initialise a loop structure, must be zero-initialised */
1796	static void noinline ecb_cold	2246	static void noinline ecb_cold
1797	loop_init (EV_P_ unsigned int flags)	2247	loop_init (EV_P_ unsigned int flags) EV_THROW
1798	{	2248	{
1799	if (!backend)	2249	if (!backend)
1800	{	2250	{
1801	origflags = flags;	2251	origflags = flags;
1802		2252
…		…
2055	}	2505	}
2056		2506
2057	#if EV_MULTIPLICITY	2507	#if EV_MULTIPLICITY
2058		2508
2059	struct ev_loop * ecb_cold	2509	struct ev_loop * ecb_cold
2060	ev_loop_new (unsigned int flags)	2510	ev_loop_new (unsigned int flags) EV_THROW
2061	{	2511	{
2062	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2512	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2063		2513
2064	memset (EV_A, 0, sizeof (struct ev_loop));	2514	memset (EV_A, 0, sizeof (struct ev_loop));
2065	loop_init (EV_A_ flags);	2515	loop_init (EV_A_ flags);
…		…
2109	}	2559	}
2110	#endif	2560	#endif
2111		2561
2112	#if EV_FEATURE_API	2562	#if EV_FEATURE_API
2113	void ecb_cold	2563	void ecb_cold
2114	ev_verify (EV_P)	2564	ev_verify (EV_P) EV_THROW
2115	{	2565	{
2116	#if EV_VERIFY	2566	#if EV_VERIFY
2117	int i;	2567	int i, j;
2118	WL w;	2568	WL w, w2;
2119		2569
2120	assert (activecnt >= -1);	2570	assert (activecnt >= -1);
2121		2571
2122	assert (fdchangemax >= fdchangecnt);	2572	assert (fdchangemax >= fdchangecnt);
2123	for (i = 0; i < fdchangecnt; ++i)	2573	for (i = 0; i < fdchangecnt; ++i)
2124	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2574	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2125		2575
2126	assert (anfdmax >= 0);	2576	assert (anfdmax >= 0);
2127	for (i = 0; i < anfdmax; ++i)	2577	for (i = j = 0; i < anfdmax; ++i)
2128	for (w = anfds [i].head; w; w = w->next)	2578	for (w = w2 = anfds [i].head; w; w = w->next)
2129	{	2579	{
2130	verify_watcher (EV_A_ (W)w);	2580	verify_watcher (EV_A_ (W)w);
		2581
		2582	if (++j & 1)
		2583	w2 = w2->next;
		2584
		2585	assert (("libev: io watcher list contains a loop", w != w2));
2131	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2586	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));	2587	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2133	}	2588	}
2134		2589
2135	assert (timermax >= timercnt);	2590	assert (timermax >= timercnt);
…		…
2188	#if EV_MULTIPLICITY	2643	#if EV_MULTIPLICITY
2189	struct ev_loop * ecb_cold	2644	struct ev_loop * ecb_cold
2190	#else	2645	#else
2191	int	2646	int
2192	#endif	2647	#endif
2193	ev_default_loop (unsigned int flags)	2648	ev_default_loop (unsigned int flags) EV_THROW
2194	{	2649	{
2195	if (!ev_default_loop_ptr)	2650	if (!ev_default_loop_ptr)
2196	{	2651	{
2197	#if EV_MULTIPLICITY	2652	#if EV_MULTIPLICITY
2198	EV_P = ev_default_loop_ptr = &default_loop_struct;	2653	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2217		2672
2218	return ev_default_loop_ptr;	2673	return ev_default_loop_ptr;
2219	}	2674	}
2220		2675
2221	void	2676	void
2222	ev_loop_fork (EV_P)	2677	ev_loop_fork (EV_P) EV_THROW
2223	{	2678	{
2224	postfork = 1; /* must be in line with ev_default_fork */	2679	postfork = 1; /* must be in line with ev_default_fork */
2225	}	2680	}
2226		2681
2227	/*****************************************************************************/	2682	/*****************************************************************************/
…		…
2231	{	2686	{
2232	EV_CB_INVOKE ((W)w, revents);	2687	EV_CB_INVOKE ((W)w, revents);
2233	}	2688	}
2234		2689
2235	unsigned int	2690	unsigned int
2236	ev_pending_count (EV_P)	2691	ev_pending_count (EV_P) EV_THROW
2237	{	2692	{
2238	int pri;	2693	int pri;
2239	unsigned int count = 0;	2694	unsigned int count = 0;
2240		2695
2241	for (pri = NUMPRI; pri--; )	2696	for (pri = NUMPRI; pri--; )
…		…
2245	}	2700	}
2246		2701
2247	void noinline	2702	void noinline
2248	ev_invoke_pending (EV_P)	2703	ev_invoke_pending (EV_P)
2249	{	2704	{
2250	int pri;	2705	for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2251
2252	for (pri = NUMPRI; pri--; )
2253	while (pendingcnt [pri])	2706	while (pendingcnt [pendingpri])
2254	{	2707	{
2255	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2708	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2256		2709
2257	p->w->pending = 0;	2710	p->w->pending = 0;
2258	EV_CB_INVOKE (p->w, p->events);	2711	EV_CB_INVOKE (p->w, p->events);
2259	EV_FREQUENT_CHECK;	2712	EV_FREQUENT_CHECK;
2260	}	2713	}
…		…
2500		2953
2501	mn_now = ev_rt_now;	2954	mn_now = ev_rt_now;
2502	}	2955	}
2503	}	2956	}
2504		2957
2505	void	2958	int
2506	ev_run (EV_P_ int flags)	2959	ev_run (EV_P_ int flags)
2507	{	2960	{
2508	#if EV_FEATURE_API	2961	#if EV_FEATURE_API
2509	++loop_depth;	2962	++loop_depth;
2510	#endif	2963	#endif
…		…
2571	time_update (EV_A_ 1e100);	3024	time_update (EV_A_ 1e100);
2572		3025
2573	/* from now on, we want a pipe-wake-up */	3026	/* from now on, we want a pipe-wake-up */
2574	pipe_write_wanted = 1;	3027	pipe_write_wanted = 1;
2575		3028
		3029	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3030
2576	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))	3031	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2577	{	3032	{
2578	waittime = MAX_BLOCKTIME;	3033	waittime = MAX_BLOCKTIME;
2579		3034
2580	if (timercnt)	3035	if (timercnt)
…		…
2621	#endif	3076	#endif
2622	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3077	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2623	backend_poll (EV_A_ waittime);	3078	backend_poll (EV_A_ waittime);
2624	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3079	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2625		3080
2626	pipe_write_wanted = 0;	3081	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2627		3082
2628	if (pipe_write_skipped)	3083	if (pipe_write_skipped)
2629	{	3084	{
2630	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3085	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);	3086	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
…		…
2665	loop_done = EVBREAK_CANCEL;	3120	loop_done = EVBREAK_CANCEL;
2666		3121
2667	#if EV_FEATURE_API	3122	#if EV_FEATURE_API
2668	--loop_depth;	3123	--loop_depth;
2669	#endif	3124	#endif
		3125
		3126	return activecnt;
2670	}	3127	}
2671		3128
2672	void	3129	void
2673	ev_break (EV_P_ int how)	3130	ev_break (EV_P_ int how) EV_THROW
2674	{	3131	{
2675	loop_done = how;	3132	loop_done = how;
2676	}	3133	}
2677		3134
2678	void	3135	void
2679	ev_ref (EV_P)	3136	ev_ref (EV_P) EV_THROW
2680	{	3137	{
2681	++activecnt;	3138	++activecnt;
2682	}	3139	}
2683		3140
2684	void	3141	void
2685	ev_unref (EV_P)	3142	ev_unref (EV_P) EV_THROW
2686	{	3143	{
2687	--activecnt;	3144	--activecnt;
2688	}	3145	}
2689		3146
2690	void	3147	void
2691	ev_now_update (EV_P)	3148	ev_now_update (EV_P) EV_THROW
2692	{	3149	{
2693	time_update (EV_A_ 1e100);	3150	time_update (EV_A_ 1e100);
2694	}	3151	}
2695		3152
2696	void	3153	void
2697	ev_suspend (EV_P)	3154	ev_suspend (EV_P) EV_THROW
2698	{	3155	{
2699	ev_now_update (EV_A);	3156	ev_now_update (EV_A);
2700	}	3157	}
2701		3158
2702	void	3159	void
2703	ev_resume (EV_P)	3160	ev_resume (EV_P) EV_THROW
2704	{	3161	{
2705	ev_tstamp mn_prev = mn_now;	3162	ev_tstamp mn_prev = mn_now;
2706		3163
2707	ev_now_update (EV_A);	3164	ev_now_update (EV_A);
2708	timers_reschedule (EV_A_ mn_now - mn_prev);	3165	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2747	w->pending = 0;	3204	w->pending = 0;
2748	}	3205	}
2749	}	3206	}
2750		3207
2751	int	3208	int
2752	ev_clear_pending (EV_P_ void *w)	3209	ev_clear_pending (EV_P_ void *w) EV_THROW
2753	{	3210	{
2754	W w_ = (W)w;	3211	W w_ = (W)w;
2755	int pending = w_->pending;	3212	int pending = w_->pending;
2756		3213
2757	if (expect_true (pending))	3214	if (expect_true (pending))
…		…
2790	}	3247	}
2791		3248
2792	/*****************************************************************************/	3249	/*****************************************************************************/
2793		3250
2794	void noinline	3251	void noinline
2795	ev_io_start (EV_P_ ev_io *w)	3252	ev_io_start (EV_P_ ev_io *w) EV_THROW
2796	{	3253	{
2797	int fd = w->fd;	3254	int fd = w->fd;
2798		3255
2799	if (expect_false (ev_is_active (w)))	3256	if (expect_false (ev_is_active (w)))
2800	return;	3257	return;
…		…
2806		3263
2807	ev_start (EV_A_ (W)w, 1);	3264	ev_start (EV_A_ (W)w, 1);
2808	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3265	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2809	wlist_add (&anfds[fd].head, (WL)w);	3266	wlist_add (&anfds[fd].head, (WL)w);
2810		3267
		3268	/* common bug, apparently */
		3269	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3270
2811	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3271	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2812	w->events &= ~EV__IOFDSET;	3272	w->events &= ~EV__IOFDSET;
2813		3273
2814	EV_FREQUENT_CHECK;	3274	EV_FREQUENT_CHECK;
2815	}	3275	}
2816		3276
2817	void noinline	3277	void noinline
2818	ev_io_stop (EV_P_ ev_io *w)	3278	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2819	{	3279	{
2820	clear_pending (EV_A_ (W)w);	3280	clear_pending (EV_A_ (W)w);
2821	if (expect_false (!ev_is_active (w)))	3281	if (expect_false (!ev_is_active (w)))
2822	return;	3282	return;
2823		3283
…		…
2832		3292
2833	EV_FREQUENT_CHECK;	3293	EV_FREQUENT_CHECK;
2834	}	3294	}
2835		3295
2836	void noinline	3296	void noinline
2837	ev_timer_start (EV_P_ ev_timer *w)	3297	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2838	{	3298	{
2839	if (expect_false (ev_is_active (w)))	3299	if (expect_false (ev_is_active (w)))
2840	return;	3300	return;
2841		3301
2842	ev_at (w) += mn_now;	3302	ev_at (w) += mn_now;
…		…
2856		3316
2857	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3317	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2858	}	3318	}
2859		3319
2860	void noinline	3320	void noinline
2861	ev_timer_stop (EV_P_ ev_timer *w)	3321	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2862	{	3322	{
2863	clear_pending (EV_A_ (W)w);	3323	clear_pending (EV_A_ (W)w);
2864	if (expect_false (!ev_is_active (w)))	3324	if (expect_false (!ev_is_active (w)))
2865	return;	3325	return;
2866		3326
…		…
2886		3346
2887	EV_FREQUENT_CHECK;	3347	EV_FREQUENT_CHECK;
2888	}	3348	}
2889		3349
2890	void noinline	3350	void noinline
2891	ev_timer_again (EV_P_ ev_timer *w)	3351	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2892	{	3352	{
2893	EV_FREQUENT_CHECK;	3353	EV_FREQUENT_CHECK;
		3354
		3355	clear_pending (EV_A_ (W)w);
2894		3356
2895	if (ev_is_active (w))	3357	if (ev_is_active (w))
2896	{	3358	{
2897	if (w->repeat)	3359	if (w->repeat)
2898	{	3360	{
…		…
2911		3373
2912	EV_FREQUENT_CHECK;	3374	EV_FREQUENT_CHECK;
2913	}	3375	}
2914		3376
2915	ev_tstamp	3377	ev_tstamp
2916	ev_timer_remaining (EV_P_ ev_timer *w)	3378	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2917	{	3379	{
2918	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3380	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2919	}	3381	}
2920		3382
2921	#if EV_PERIODIC_ENABLE	3383	#if EV_PERIODIC_ENABLE
2922	void noinline	3384	void noinline
2923	ev_periodic_start (EV_P_ ev_periodic *w)	3385	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2924	{	3386	{
2925	if (expect_false (ev_is_active (w)))	3387	if (expect_false (ev_is_active (w)))
2926	return;	3388	return;
2927		3389
2928	if (w->reschedule_cb)	3390	if (w->reschedule_cb)
…		…
2948		3410
2949	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3411	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2950	}	3412	}
2951		3413
2952	void noinline	3414	void noinline
2953	ev_periodic_stop (EV_P_ ev_periodic *w)	3415	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2954	{	3416	{
2955	clear_pending (EV_A_ (W)w);	3417	clear_pending (EV_A_ (W)w);
2956	if (expect_false (!ev_is_active (w)))	3418	if (expect_false (!ev_is_active (w)))
2957	return;	3419	return;
2958		3420
…		…
2976		3438
2977	EV_FREQUENT_CHECK;	3439	EV_FREQUENT_CHECK;
2978	}	3440	}
2979		3441
2980	void noinline	3442	void noinline
2981	ev_periodic_again (EV_P_ ev_periodic *w)	3443	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2982	{	3444	{
2983	/* TODO: use adjustheap and recalculation */	3445	/* TODO: use adjustheap and recalculation */
2984	ev_periodic_stop (EV_A_ w);	3446	ev_periodic_stop (EV_A_ w);
2985	ev_periodic_start (EV_A_ w);	3447	ev_periodic_start (EV_A_ w);
2986	}	3448	}
…		…
2991	#endif	3453	#endif
2992		3454
2993	#if EV_SIGNAL_ENABLE	3455	#if EV_SIGNAL_ENABLE
2994		3456
2995	void noinline	3457	void noinline
2996	ev_signal_start (EV_P_ ev_signal *w)	3458	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2997	{	3459	{
2998	if (expect_false (ev_is_active (w)))	3460	if (expect_false (ev_is_active (w)))
2999	return;	3461	return;
3000		3462
3001	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3463	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3072		3534
3073	EV_FREQUENT_CHECK;	3535	EV_FREQUENT_CHECK;
3074	}	3536	}
3075		3537
3076	void noinline	3538	void noinline
3077	ev_signal_stop (EV_P_ ev_signal *w)	3539	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3078	{	3540	{
3079	clear_pending (EV_A_ (W)w);	3541	clear_pending (EV_A_ (W)w);
3080	if (expect_false (!ev_is_active (w)))	3542	if (expect_false (!ev_is_active (w)))
3081	return;	3543	return;
3082		3544
…		…
3113	#endif	3575	#endif
3114		3576
3115	#if EV_CHILD_ENABLE	3577	#if EV_CHILD_ENABLE
3116		3578
3117	void	3579	void
3118	ev_child_start (EV_P_ ev_child *w)	3580	ev_child_start (EV_P_ ev_child *w) EV_THROW
3119	{	3581	{
3120	#if EV_MULTIPLICITY	3582	#if EV_MULTIPLICITY
3121	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3583	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3122	#endif	3584	#endif
3123	if (expect_false (ev_is_active (w)))	3585	if (expect_false (ev_is_active (w)))
…		…
3130		3592
3131	EV_FREQUENT_CHECK;	3593	EV_FREQUENT_CHECK;
3132	}	3594	}
3133		3595
3134	void	3596	void
3135	ev_child_stop (EV_P_ ev_child *w)	3597	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3136	{	3598	{
3137	clear_pending (EV_A_ (W)w);	3599	clear_pending (EV_A_ (W)w);
3138	if (expect_false (!ev_is_active (w)))	3600	if (expect_false (!ev_is_active (w)))
3139	return;	3601	return;
3140		3602
…		…
3307	}	3769	}
3308		3770
3309	inline_size int	3771	inline_size int
3310	infy_newfd (void)	3772	infy_newfd (void)
3311	{	3773	{
3312	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	3774	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3313	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	3775	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3314	if (fd >= 0)	3776	if (fd >= 0)
3315	return fd;	3777	return fd;
3316	#endif	3778	#endif
3317	return inotify_init ();	3779	return inotify_init ();
…		…
3392	#else	3854	#else
3393	# define EV_LSTAT(p,b) lstat (p, b)	3855	# define EV_LSTAT(p,b) lstat (p, b)
3394	#endif	3856	#endif
3395		3857
3396	void	3858	void
3397	ev_stat_stat (EV_P_ ev_stat *w)	3859	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3398	{	3860	{
3399	if (lstat (w->path, &w->attr) < 0)	3861	if (lstat (w->path, &w->attr) < 0)
3400	w->attr.st_nlink = 0;	3862	w->attr.st_nlink = 0;
3401	else if (!w->attr.st_nlink)	3863	else if (!w->attr.st_nlink)
3402	w->attr.st_nlink = 1;	3864	w->attr.st_nlink = 1;
…		…
3441	ev_feed_event (EV_A_ w, EV_STAT);	3903	ev_feed_event (EV_A_ w, EV_STAT);
3442	}	3904	}
3443	}	3905	}
3444		3906
3445	void	3907	void
3446	ev_stat_start (EV_P_ ev_stat *w)	3908	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3447	{	3909	{
3448	if (expect_false (ev_is_active (w)))	3910	if (expect_false (ev_is_active (w)))
3449	return;	3911	return;
3450		3912
3451	ev_stat_stat (EV_A_ w);	3913	ev_stat_stat (EV_A_ w);
…		…
3472		3934
3473	EV_FREQUENT_CHECK;	3935	EV_FREQUENT_CHECK;
3474	}	3936	}
3475		3937
3476	void	3938	void
3477	ev_stat_stop (EV_P_ ev_stat *w)	3939	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3478	{	3940	{
3479	clear_pending (EV_A_ (W)w);	3941	clear_pending (EV_A_ (W)w);
3480	if (expect_false (!ev_is_active (w)))	3942	if (expect_false (!ev_is_active (w)))
3481	return;	3943	return;
3482		3944
…		…
3498	}	3960	}
3499	#endif	3961	#endif
3500		3962
3501	#if EV_IDLE_ENABLE	3963	#if EV_IDLE_ENABLE
3502	void	3964	void
3503	ev_idle_start (EV_P_ ev_idle *w)	3965	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3504	{	3966	{
3505	if (expect_false (ev_is_active (w)))	3967	if (expect_false (ev_is_active (w)))
3506	return;	3968	return;
3507		3969
3508	pri_adjust (EV_A_ (W)w);	3970	pri_adjust (EV_A_ (W)w);
…		…
3521		3983
3522	EV_FREQUENT_CHECK;	3984	EV_FREQUENT_CHECK;
3523	}	3985	}
3524		3986
3525	void	3987	void
3526	ev_idle_stop (EV_P_ ev_idle *w)	3988	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3527	{	3989	{
3528	clear_pending (EV_A_ (W)w);	3990	clear_pending (EV_A_ (W)w);
3529	if (expect_false (!ev_is_active (w)))	3991	if (expect_false (!ev_is_active (w)))
3530	return;	3992	return;
3531		3993
…		…
3545	}	4007	}
3546	#endif	4008	#endif
3547		4009
3548	#if EV_PREPARE_ENABLE	4010	#if EV_PREPARE_ENABLE
3549	void	4011	void
3550	ev_prepare_start (EV_P_ ev_prepare *w)	4012	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3551	{	4013	{
3552	if (expect_false (ev_is_active (w)))	4014	if (expect_false (ev_is_active (w)))
3553	return;	4015	return;
3554		4016
3555	EV_FREQUENT_CHECK;	4017	EV_FREQUENT_CHECK;
…		…
3560		4022
3561	EV_FREQUENT_CHECK;	4023	EV_FREQUENT_CHECK;
3562	}	4024	}
3563		4025
3564	void	4026	void
3565	ev_prepare_stop (EV_P_ ev_prepare *w)	4027	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3566	{	4028	{
3567	clear_pending (EV_A_ (W)w);	4029	clear_pending (EV_A_ (W)w);
3568	if (expect_false (!ev_is_active (w)))	4030	if (expect_false (!ev_is_active (w)))
3569	return;	4031	return;
3570		4032
…		…
3583	}	4045	}
3584	#endif	4046	#endif
3585		4047
3586	#if EV_CHECK_ENABLE	4048	#if EV_CHECK_ENABLE
3587	void	4049	void
3588	ev_check_start (EV_P_ ev_check *w)	4050	ev_check_start (EV_P_ ev_check *w) EV_THROW
3589	{	4051	{
3590	if (expect_false (ev_is_active (w)))	4052	if (expect_false (ev_is_active (w)))
3591	return;	4053	return;
3592		4054
3593	EV_FREQUENT_CHECK;	4055	EV_FREQUENT_CHECK;
…		…
3598		4060
3599	EV_FREQUENT_CHECK;	4061	EV_FREQUENT_CHECK;
3600	}	4062	}
3601		4063
3602	void	4064	void
3603	ev_check_stop (EV_P_ ev_check *w)	4065	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3604	{	4066	{
3605	clear_pending (EV_A_ (W)w);	4067	clear_pending (EV_A_ (W)w);
3606	if (expect_false (!ev_is_active (w)))	4068	if (expect_false (!ev_is_active (w)))
3607	return;	4069	return;
3608		4070
…		…
3621	}	4083	}
3622	#endif	4084	#endif
3623		4085
3624	#if EV_EMBED_ENABLE	4086	#if EV_EMBED_ENABLE
3625	void noinline	4087	void noinline
3626	ev_embed_sweep (EV_P_ ev_embed *w)	4088	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3627	{	4089	{
3628	ev_run (w->other, EVRUN_NOWAIT);	4090	ev_run (w->other, EVRUN_NOWAIT);
3629	}	4091	}
3630		4092
3631	static void	4093	static void
…		…
3679	ev_idle_stop (EV_A_ idle);	4141	ev_idle_stop (EV_A_ idle);
3680	}	4142	}
3681	#endif	4143	#endif
3682		4144
3683	void	4145	void
3684	ev_embed_start (EV_P_ ev_embed *w)	4146	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3685	{	4147	{
3686	if (expect_false (ev_is_active (w)))	4148	if (expect_false (ev_is_active (w)))
3687	return;	4149	return;
3688		4150
3689	{	4151	{
…		…
3710		4172
3711	EV_FREQUENT_CHECK;	4173	EV_FREQUENT_CHECK;
3712	}	4174	}
3713		4175
3714	void	4176	void
3715	ev_embed_stop (EV_P_ ev_embed *w)	4177	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3716	{	4178	{
3717	clear_pending (EV_A_ (W)w);	4179	clear_pending (EV_A_ (W)w);
3718	if (expect_false (!ev_is_active (w)))	4180	if (expect_false (!ev_is_active (w)))
3719	return;	4181	return;
3720		4182
…		…
3730	}	4192	}
3731	#endif	4193	#endif
3732		4194
3733	#if EV_FORK_ENABLE	4195	#if EV_FORK_ENABLE
3734	void	4196	void
3735	ev_fork_start (EV_P_ ev_fork *w)	4197	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3736	{	4198	{
3737	if (expect_false (ev_is_active (w)))	4199	if (expect_false (ev_is_active (w)))
3738	return;	4200	return;
3739		4201
3740	EV_FREQUENT_CHECK;	4202	EV_FREQUENT_CHECK;
…		…
3745		4207
3746	EV_FREQUENT_CHECK;	4208	EV_FREQUENT_CHECK;
3747	}	4209	}
3748		4210
3749	void	4211	void
3750	ev_fork_stop (EV_P_ ev_fork *w)	4212	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3751	{	4213	{
3752	clear_pending (EV_A_ (W)w);	4214	clear_pending (EV_A_ (W)w);
3753	if (expect_false (!ev_is_active (w)))	4215	if (expect_false (!ev_is_active (w)))
3754	return;	4216	return;
3755		4217
…		…
3768	}	4230	}
3769	#endif	4231	#endif
3770		4232
3771	#if EV_CLEANUP_ENABLE	4233	#if EV_CLEANUP_ENABLE
3772	void	4234	void
3773	ev_cleanup_start (EV_P_ ev_cleanup *w)	4235	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3774	{	4236	{
3775	if (expect_false (ev_is_active (w)))	4237	if (expect_false (ev_is_active (w)))
3776	return;	4238	return;
3777		4239
3778	EV_FREQUENT_CHECK;	4240	EV_FREQUENT_CHECK;
…		…
3785	ev_unref (EV_A);	4247	ev_unref (EV_A);
3786	EV_FREQUENT_CHECK;	4248	EV_FREQUENT_CHECK;
3787	}	4249	}
3788		4250
3789	void	4251	void
3790	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4252	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3791	{	4253	{
3792	clear_pending (EV_A_ (W)w);	4254	clear_pending (EV_A_ (W)w);
3793	if (expect_false (!ev_is_active (w)))	4255	if (expect_false (!ev_is_active (w)))
3794	return;	4256	return;
3795		4257
…		…
3809	}	4271	}
3810	#endif	4272	#endif
3811		4273
3812	#if EV_ASYNC_ENABLE	4274	#if EV_ASYNC_ENABLE
3813	void	4275	void
3814	ev_async_start (EV_P_ ev_async *w)	4276	ev_async_start (EV_P_ ev_async *w) EV_THROW
3815	{	4277	{
3816	if (expect_false (ev_is_active (w)))	4278	if (expect_false (ev_is_active (w)))
3817	return;	4279	return;
3818		4280
3819	w->sent = 0;	4281	w->sent = 0;
…		…
3828		4290
3829	EV_FREQUENT_CHECK;	4291	EV_FREQUENT_CHECK;
3830	}	4292	}
3831		4293
3832	void	4294	void
3833	ev_async_stop (EV_P_ ev_async *w)	4295	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3834	{	4296	{
3835	clear_pending (EV_A_ (W)w);	4297	clear_pending (EV_A_ (W)w);
3836	if (expect_false (!ev_is_active (w)))	4298	if (expect_false (!ev_is_active (w)))
3837	return;	4299	return;
3838		4300
…		…
3849		4311
3850	EV_FREQUENT_CHECK;	4312	EV_FREQUENT_CHECK;
3851	}	4313	}
3852		4314
3853	void	4315	void
3854	ev_async_send (EV_P_ ev_async *w)	4316	ev_async_send (EV_P_ ev_async *w) EV_THROW
3855	{	4317	{
3856	w->sent = 1;	4318	w->sent = 1;
3857	evpipe_write (EV_A_ &async_pending);	4319	evpipe_write (EV_A_ &async_pending);
3858	}	4320	}
3859	#endif	4321	#endif
…		…
3896		4358
3897	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4359	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3898	}	4360	}
3899		4361
3900	void	4362	void
3901	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3902	{	4364	{
3903	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4365	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3904		4366
3905	if (expect_false (!once))	4367	if (expect_false (!once))
3906	{	4368	{
…		…
3928		4390
3929	/*****************************************************************************/	4391	/*****************************************************************************/
3930		4392
3931	#if EV_WALK_ENABLE	4393	#if EV_WALK_ENABLE
3932	void ecb_cold	4394	void ecb_cold
3933	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4395	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3934	{	4396	{
3935	int i, j;	4397	int i, j;
3936	ev_watcher_list *wl, *wn;	4398	ev_watcher_list *wl, *wn;
3937		4399
3938	if (types & (EV_IO | EV_EMBED))	4400	if (types & (EV_IO | EV_EMBED))
…		…
3981	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4443	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3982	#endif	4444	#endif
3983		4445
3984	#if EV_IDLE_ENABLE	4446	#if EV_IDLE_ENABLE
3985	if (types & EV_IDLE)	4447	if (types & EV_IDLE)
3986	for (j = NUMPRI; i--; )	4448	for (j = NUMPRI; j--; )
3987	for (i = idlecnt [j]; i--; )	4449	for (i = idlecnt [j]; i--; )
3988	cb (EV_A_ EV_IDLE, idles [j][i]);	4450	cb (EV_A_ EV_IDLE, idles [j][i]);
3989	#endif	4451	#endif
3990		4452
3991	#if EV_FORK_ENABLE	4453	#if EV_FORK_ENABLE
…		…
4044		4506
4045	#if EV_MULTIPLICITY	4507	#if EV_MULTIPLICITY
4046	#include "ev_wrap.h"	4508	#include "ev_wrap.h"
4047	#endif	4509	#endif
4048		4510
4049	EV_CPP(})
4050

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