[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC vs.
Revision 1.414 by root, Sat Mar 24 19:38:51 2012 UTC

…		…
4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011 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	*
10	* 1. Redistributions of source code must retain the above copyright notice,	10	* 1. Redistributions of source code must retain the above copyright notice,
11	* this list of conditions and the following disclaimer.	11	* this list of conditions and the following disclaimer.
12	*	12	*
13	* 2. Redistributions in binary form must reproduce the above copyright	13	* 2. Redistributions in binary form must reproduce the above copyright
14	* notice, this list of conditions and the following disclaimer in the	14	* notice, this list of conditions and the following disclaimer in the
15	* documentation and/or other materials provided with the distribution.	15	* documentation and/or other materials provided with the distribution.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-	18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO	19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-	20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,	21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
…		…
42	# ifdef EV_CONFIG_H	42	# ifdef EV_CONFIG_H
43	# include EV_CONFIG_H	43	# include EV_CONFIG_H
44	# else	44	# else
45	# include "config.h"	45	# include "config.h"
46	# endif	46	# endif
		47
		48	#if HAVE_FLOOR
		49	# ifndef EV_USE_FLOOR
		50	# define EV_USE_FLOOR 1
		51	# endif
		52	#endif
47		53
48	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
49	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
50	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
51	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
156	# define EV_USE_EVENTFD 0	162	# define EV_USE_EVENTFD 0
157	# endif	163	# endif
158		164
159	#endif	165	#endif
160		166
161	#include <math.h>
162	#include <stdlib.h>	167	#include <stdlib.h>
163	#include <string.h>	168	#include <string.h>
164	#include <fcntl.h>	169	#include <fcntl.h>
165	#include <stddef.h>	170	#include <stddef.h>
166		171
…		…
178	# include EV_H	183	# include EV_H
179	#else	184	#else
180	# include "ev.h"	185	# include "ev.h"
181	#endif	186	#endif
182		187
183	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
184		198
185	#ifndef _WIN32	199	#ifndef _WIN32
186	# include <sys/time.h>	200	# include <sys/time.h>
187	# include <sys/wait.h>	201	# include <sys/wait.h>
188	# include <unistd.h>	202	# include <unistd.h>
…		…
232	/* to make it compile regardless, just remove the above line, */	246	/* to make it compile regardless, just remove the above line, */
233	/* but consider reporting it, too! :) */	247	/* but consider reporting it, too! :) */
234	# define EV_NSIG 65	248	# define EV_NSIG 65
235	#endif	249	#endif
236		250
		251	#ifndef EV_USE_FLOOR
		252	# define EV_USE_FLOOR 0
		253	#endif
		254
237	#ifndef EV_USE_CLOCK_SYSCALL	255	#ifndef EV_USE_CLOCK_SYSCALL
238	# if __linux && __GLIBC__ >= 2	256	# if __linux && __GLIBC__ >= 2
239	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	257	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
240	# else	258	# else
241	# define EV_USE_CLOCK_SYSCALL 0	259	# define EV_USE_CLOCK_SYSCALL 0
…		…
443	#else	461	#else
444	# define EV_FREQUENT_CHECK do { } while (0)	462	# define EV_FREQUENT_CHECK do { } while (0)
445	#endif	463	#endif
446		464
447	/*	465	/*
448	* This is used to avoid floating point rounding problems.	466	* This is used to work around floating point rounding problems.
449	* It is added to ev_rt_now when scheduling periodics
450	* to ensure progress, time-wise, even when rounding
451	* errors are against us.
452	* This value is good at least till the year 4000.	467	* This value is good at least till the year 4000.
453	* Better solutions welcome.
454	*/	468	*/
455	#define TIME_EPSILON 0.0001220703125 /* 1/8192 */	469	#define MIN_INTERVAL 0.0001220703125 /* 1/2*13, good till 4000 /
		470	/#define MIN_INTERVAL 0.00000095367431640625 / 1/2*20, good till 2200 /
456		471
457	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	472	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
458	#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) */
459		474
460	#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)
461	#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)
462		477
		478	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
		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;
463	#if __GNUC__ >= 4	519	#if __GNUC__
464	# define expect(expr,value) __builtin_expect ((expr),(value))	520	typedef signed long long int64_t;
465	# define noinline __attribute__ ((noinline))	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
466	#else	526	#else
467	# define expect(expr,value) (expr)	527	#include <inttypes.h>
468	# define noinline
469	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
470	# define inline
471	# endif	528	#endif
		529
		530	/* many compilers define _GNUC_ to some versions but then only implement
		531	* what their idiot authors think are the "more important" extensions,
		532	* causing enormous grief in return for some better fake benchmark numbers.
		533	* or so.
		534	* we try to detect these and simply assume they are not gcc - if they have
		535	* an issue with that they should have done it right in the first place.
		536	*/
		537	#ifndef ECB_GCC_VERSION
		538	#if !defined(__GNUC_MINOR__) \|\| defined(__INTEL_COMPILER) \|\| defined(__SUNPRO_C) \|\| defined(__SUNPRO_CC) \|\| defined(__llvm__) \|\| defined(__clang__)
		539	#define ECB_GCC_VERSION(major,minor) 0
		540	#else
		541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
472	#endif	542	#endif
		543	#endif
473		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	#endif
		585	#endif
		586	#endif
		587
		588	#ifndef ECB_MEMORY_FENCE
		589	#if ECB_GCC_VERSION(4,4) \|\| defined(__INTEL_COMPILER) \|\| defined(__clang__)
		590	#define ECB_MEMORY_FENCE __sync_synchronize ()
		591	/#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) /
		592	/#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) /
		593	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		594	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		595	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		596	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		597	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		598	#elif defined(_WIN32)
		599	#include <WinNT.h>
		600	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		601	#elif __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		602	#include <mbarrier.h>
		603	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		604	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		605	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		606	#elif __xlC__
		607	#define ECB_MEMORY_FENCE __sync ()
		608	#endif
		609	#endif
		610
		611	#ifndef ECB_MEMORY_FENCE
		612	#if !ECB_AVOID_PTHREADS
		613	/*
		614	* if you get undefined symbol references to pthread_mutex_lock,
		615	* or failure to find pthread.h, then you should implement
		616	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		617	* OR provide pthread.h and link against the posix thread library
		618	* of your system.
		619	*/
		620	#include <pthread.h>
		621	#define ECB_NEEDS_PTHREADS 1
		622	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		623
		624	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		625	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		626	#endif
		627	#endif
		628
		629	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
		630	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		631	#endif
		632
		633	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
		634	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		635	#endif
		636
		637	/*****************************************************************************/
		638
		639	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		640
		641	#if __cplusplus
		642	#define ecb_inline static inline
		643	#elif ECB_GCC_VERSION(2,5)
		644	#define ecb_inline static __inline__
		645	#elif ECB_C99
		646	#define ecb_inline static inline
		647	#else
		648	#define ecb_inline static
		649	#endif
		650
		651	#if ECB_GCC_VERSION(3,3)
		652	#define ecb_restrict __restrict__
		653	#elif ECB_C99
		654	#define ecb_restrict restrict
		655	#else
		656	#define ecb_restrict
		657	#endif
		658
		659	typedef int ecb_bool;
		660
		661	#define ECB_CONCAT_(a, b) a ## b
		662	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		663	#define ECB_STRINGIFY_(a) # a
		664	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		665
		666	#define ecb_function_ ecb_inline
		667
		668	#if ECB_GCC_VERSION(3,1)
		669	#define ecb_attribute(attrlist) __attribute__(attrlist)
		670	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		671	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		672	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		673	#else
		674	#define ecb_attribute(attrlist)
		675	#define ecb_is_constant(expr) 0
		676	#define ecb_expect(expr,value) (expr)
		677	#define ecb_prefetch(addr,rw,locality)
		678	#endif
		679
		680	/* no emulation for ecb_decltype */
		681	#if ECB_GCC_VERSION(4,5)
		682	#define ecb_decltype(x) __decltype(x)
		683	#elif ECB_GCC_VERSION(3,0)
		684	#define ecb_decltype(x) __typeof(x)
		685	#endif
		686
		687	#define ecb_noinline ecb_attribute ((__noinline__))
		688	#define ecb_noreturn ecb_attribute ((__noreturn__))
		689	#define ecb_unused ecb_attribute ((__unused__))
		690	#define ecb_const ecb_attribute ((__const__))
		691	#define ecb_pure ecb_attribute ((__pure__))
		692
		693	#if ECB_GCC_VERSION(4,3)
		694	#define ecb_artificial ecb_attribute ((__artificial__))
		695	#define ecb_hot ecb_attribute ((__hot__))
		696	#define ecb_cold ecb_attribute ((__cold__))
		697	#else
		698	#define ecb_artificial
		699	#define ecb_hot
		700	#define ecb_cold
		701	#endif
		702
		703	/* put around conditional expressions if you are very sure that the */
		704	/* expression is mostly true or mostly false. note that these return */
		705	/* booleans, not the expression. */
474	#define expect_false(expr) expect ((expr) != 0, 0)	706	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
475	#define expect_true(expr) expect ((expr) != 0, 1)	707	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		708	/* for compatibility to the rest of the world */
		709	#define ecb_likely(expr) ecb_expect_true (expr)
		710	#define ecb_unlikely(expr) ecb_expect_false (expr)
		711
		712	/* count trailing zero bits and count # of one bits */
		713	#if ECB_GCC_VERSION(3,4)
		714	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		715	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		716	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		717	#define ecb_ctz32(x) __builtin_ctz (x)
		718	#define ecb_ctz64(x) __builtin_ctzll (x)
		719	#define ecb_popcount32(x) __builtin_popcount (x)
		720	/* no popcountll */
		721	#else
		722	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		723	ecb_function_ int
		724	ecb_ctz32 (uint32_t x)
		725	{
		726	int r = 0;
		727
		728	x &= ~x + 1; /* this isolates the lowest bit */
		729
		730	#if ECB_branchless_on_i386
		731	r += !!(x & 0xaaaaaaaa) << 0;
		732	r += !!(x & 0xcccccccc) << 1;
		733	r += !!(x & 0xf0f0f0f0) << 2;
		734	r += !!(x & 0xff00ff00) << 3;
		735	r += !!(x & 0xffff0000) << 4;
		736	#else
		737	if (x & 0xaaaaaaaa) r += 1;
		738	if (x & 0xcccccccc) r += 2;
		739	if (x & 0xf0f0f0f0) r += 4;
		740	if (x & 0xff00ff00) r += 8;
		741	if (x & 0xffff0000) r += 16;
		742	#endif
		743
		744	return r;
		745	}
		746
		747	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		748	ecb_function_ int
		749	ecb_ctz64 (uint64_t x)
		750	{
		751	int shift = x & 0xffffffffU ? 0 : 32;
		752	return ecb_ctz32 (x >> shift) + shift;
		753	}
		754
		755	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		756	ecb_function_ int
		757	ecb_popcount32 (uint32_t x)
		758	{
		759	x -= (x >> 1) & 0x55555555;
		760	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		761	x = ((x >> 4) + x) & 0x0f0f0f0f;
		762	x *= 0x01010101;
		763
		764	return x >> 24;
		765	}
		766
		767	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		768	ecb_function_ int ecb_ld32 (uint32_t x)
		769	{
		770	int r = 0;
		771
		772	if (x >> 16) { x >>= 16; r += 16; }
		773	if (x >> 8) { x >>= 8; r += 8; }
		774	if (x >> 4) { x >>= 4; r += 4; }
		775	if (x >> 2) { x >>= 2; r += 2; }
		776	if (x >> 1) { r += 1; }
		777
		778	return r;
		779	}
		780
		781	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		782	ecb_function_ int ecb_ld64 (uint64_t x)
		783	{
		784	int r = 0;
		785
		786	if (x >> 32) { x >>= 32; r += 32; }
		787
		788	return r + ecb_ld32 (x);
		789	}
		790	#endif
		791
		792	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		793	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		794	{
		795	return ( (x * 0x0802U & 0x22110U)
		796	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		797	}
		798
		799	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		800	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		801	{
		802	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
		803	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
		804	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
		805	x = ( x >> 8 ) \| ( x << 8);
		806
		807	return x;
		808	}
		809
		810	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		811	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		812	{
		813	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
		814	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
		815	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
		816	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
		817	x = ( x >> 16 ) \| ( x << 16);
		818
		819	return x;
		820	}
		821
		822	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		823	/* so for this version we are lazy */
		824	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		825	ecb_function_ int
		826	ecb_popcount64 (uint64_t x)
		827	{
		828	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		829	}
		830
		831	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		832	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		833	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		834	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		835	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		836	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		837	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		838	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		839
		840	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
		841	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
		842	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
		843	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
		844	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
		845	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
		846	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
		847	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
		848
		849	#if ECB_GCC_VERSION(4,3)
		850	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		851	#define ecb_bswap32(x) __builtin_bswap32 (x)
		852	#define ecb_bswap64(x) __builtin_bswap64 (x)
		853	#else
		854	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		855	ecb_function_ uint16_t
		856	ecb_bswap16 (uint16_t x)
		857	{
		858	return ecb_rotl16 (x, 8);
		859	}
		860
		861	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		862	ecb_function_ uint32_t
		863	ecb_bswap32 (uint32_t x)
		864	{
		865	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
		866	}
		867
		868	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		869	ecb_function_ uint64_t
		870	ecb_bswap64 (uint64_t x)
		871	{
		872	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
		873	}
		874	#endif
		875
		876	#if ECB_GCC_VERSION(4,5)
		877	#define ecb_unreachable() __builtin_unreachable ()
		878	#else
		879	/* this seems to work fine, but gcc always emits a warning for it :/ */
		880	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		881	ecb_inline void ecb_unreachable (void) { }
		882	#endif
		883
		884	/* try to tell the compiler that some condition is definitely true */
		885	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		886
		887	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		888	ecb_inline unsigned char
		889	ecb_byteorder_helper (void)
		890	{
		891	const uint32_t u = 0x11223344;
		892	return (unsigned char )&u;
		893	}
		894
		895	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		896	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		897	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		898	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		899
		900	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
		901	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		902	#else
		903	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		904	#endif
		905
		906	#if __cplusplus
		907	template<typename T>
		908	static inline T ecb_div_rd (T val, T div)
		909	{
		910	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		911	}
		912	template<typename T>
		913	static inline T ecb_div_ru (T val, T div)
		914	{
		915	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		916	}
		917	#else
		918	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		919	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		920	#endif
		921
		922	#if ecb_cplusplus_does_not_suck
		923	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		924	template<typename T, int N>
		925	static inline int ecb_array_length (const T (&arr)[N])
		926	{
		927	return N;
		928	}
		929	#else
		930	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		931	#endif
		932
		933	#endif
		934
		935	/* ECB.H END */
		936
		937	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		938	/* if your architecture doesn't need memory fences, e.g. because it is
		939	* single-cpu/core, or if you use libev in a project that doesn't use libev
		940	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		941	* libev, in which cases the memory fences become nops.
		942	* alternatively, you can remove this #error and link against libpthread,
		943	* which will then provide the memory fences.
		944	*/
		945	# error "memory fences not defined for your architecture, please report"
		946	#endif
		947
		948	#ifndef ECB_MEMORY_FENCE
		949	# define ECB_MEMORY_FENCE do { } while (0)
		950	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		951	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		952	#endif
		953
		954	#define expect_false(cond) ecb_expect_false (cond)
		955	#define expect_true(cond) ecb_expect_true (cond)
		956	#define noinline ecb_noinline
		957
476	#define inline_size static inline	958	#define inline_size ecb_inline
477		959
478	#if EV_FEATURE_CODE	960	#if EV_FEATURE_CODE
479	# define inline_speed static inline	961	# define inline_speed ecb_inline
480	#else	962	#else
481	# define inline_speed static noinline	963	# define inline_speed static noinline
482	#endif	964	#endif
483		965
484	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	966	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
523	# include "ev_win32.c"	1005	# include "ev_win32.c"
524	#endif	1006	#endif
525		1007
526	/*****************************************************************************/	1008	/*****************************************************************************/
527		1009
		1010	/* define a suitable floor function (only used by periodics atm) */
		1011
		1012	#if EV_USE_FLOOR
		1013	# include <math.h>
		1014	# define ev_floor(v) floor (v)
		1015	#else
		1016
		1017	#include <float.h>
		1018
		1019	/* a floor() replacement function, should be independent of ev_tstamp type */
		1020	static ev_tstamp noinline
		1021	ev_floor (ev_tstamp v)
		1022	{
		1023	/* the choice of shift factor is not terribly important */
		1024	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
		1025	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
		1026	#else
		1027	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
		1028	#endif
		1029
		1030	/* argument too large for an unsigned long? */
		1031	if (expect_false (v >= shift))
		1032	{
		1033	ev_tstamp f;
		1034
		1035	if (v == v - 1.)
		1036	return v; /* very large number */
		1037
		1038	f = shift * ev_floor (v * (1. / shift));
		1039	return f + ev_floor (v - f);
		1040	}
		1041
		1042	/* special treatment for negative args? */
		1043	if (expect_false (v < 0.))
		1044	{
		1045	ev_tstamp f = -ev_floor (-v);
		1046
		1047	return f - (f == v ? 0 : 1);
		1048	}
		1049
		1050	/* fits into an unsigned long */
		1051	return (unsigned long)v;
		1052	}
		1053
		1054	#endif
		1055
		1056	/*****************************************************************************/
		1057
528	#ifdef __linux	1058	#ifdef __linux
529	# include <sys/utsname.h>	1059	# include <sys/utsname.h>
530	#endif	1060	#endif
531		1061
532	static unsigned int noinline	1062	static unsigned int noinline ecb_cold
533	ev_linux_version (void)	1063	ev_linux_version (void)
534	{	1064	{
535	#ifdef __linux	1065	#ifdef __linux
536	unsigned int v = 0;	1066	unsigned int v = 0;
537	struct utsname buf;	1067	struct utsname buf;
…		…
566	}	1096	}
567		1097
568	/*****************************************************************************/	1098	/*****************************************************************************/
569		1099
570	#if EV_AVOID_STDIO	1100	#if EV_AVOID_STDIO
571	static void noinline	1101	static void noinline ecb_cold
572	ev_printerr (const char *msg)	1102	ev_printerr (const char *msg)
573	{	1103	{
574	write (STDERR_FILENO, msg, strlen (msg));	1104	write (STDERR_FILENO, msg, strlen (msg));
575	}	1105	}
576	#endif	1106	#endif
577		1107
578	static void (syserr_cb)(const char msg);	1108	static void (syserr_cb)(const char msg);
579		1109
580	void	1110	void ecb_cold
581	ev_set_syserr_cb (void (cb)(const char msg))	1111	ev_set_syserr_cb (void (cb)(const char msg))
582	{	1112	{
583	syserr_cb = cb;	1113	syserr_cb = cb;
584	}	1114	}
585		1115
586	static void noinline	1116	static void noinline ecb_cold
587	ev_syserr (const char *msg)	1117	ev_syserr (const char *msg)
588	{	1118	{
589	if (!msg)	1119	if (!msg)
590	msg = "(libev) system error";	1120	msg = "(libev) system error";
591		1121
…		…
624	#endif	1154	#endif
625	}	1155	}
626		1156
627	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	1157	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
628		1158
629	void	1159	void ecb_cold
630	ev_set_allocator (void (cb)(void *ptr, long size))	1160	ev_set_allocator (void (cb)(void *ptr, long size))
631	{	1161	{
632	alloc = cb;	1162	alloc = cb;
633	}	1163	}
634		1164
…		…
723	#undef VAR	1253	#undef VAR
724	};	1254	};
725	#include "ev_wrap.h"	1255	#include "ev_wrap.h"
726		1256
727	static struct ev_loop default_loop_struct;	1257	static struct ev_loop default_loop_struct;
728	struct ev_loop *ev_default_loop_ptr;	1258	EV_API_DECL struct ev_loop ev_default_loop_ptr = 0; / needs to be initialised to make it a definition despite extern */
729		1259
730	#else	1260	#else
731		1261
732	ev_tstamp ev_rt_now;	1262	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
733	#define VAR(name,decl) static decl;	1263	#define VAR(name,decl) static decl;
734	#include "ev_vars.h"	1264	#include "ev_vars.h"
735	#undef VAR	1265	#undef VAR
736		1266
737	static int ev_default_loop_ptr;	1267	static int ev_default_loop_ptr;
…		…
816	select (0, 0, 0, 0, &tv);	1346	select (0, 0, 0, 0, &tv);
817	#endif	1347	#endif
818	}	1348	}
819	}	1349	}
820		1350
821	inline_speed int
822	ev_timeout_to_ms (ev_tstamp timeout)
823	{
824	int ms = timeout * 1000. + .999999;
825
826	return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
827	}
828
829	/*****************************************************************************/	1351	/*****************************************************************************/
830		1352
831	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /	1353	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2*n and >> 4 longs /
832		1354
833	/* find a suitable new size for the given array, */	1355	/* find a suitable new size for the given array, */
…		…
839		1361
840	do	1362	do
841	ncur <<= 1;	1363	ncur <<= 1;
842	while (cnt > ncur);	1364	while (cnt > ncur);
843		1365
844	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1366	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
845	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)	1367	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)
846	{	1368	{
847	ncur *= elem;	1369	ncur *= elem;
848	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);	1370	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);
849	ncur = ncur - sizeof (void ) 4;	1371	ncur = ncur - sizeof (void ) 4;
…		…
851	}	1373	}
852		1374
853	return ncur;	1375	return ncur;
854	}	1376	}
855		1377
856	static noinline void *	1378	static void * noinline ecb_cold
857	array_realloc (int elem, void base, int cur, int cnt)	1379	array_realloc (int elem, void base, int cur, int cnt)
858	{	1380	{
859	cur = array_nextsize (elem, cur, cnt);	1381	cur = array_nextsize (elem, cur, cnt);
860	return ev_realloc (base, elem * *cur);	1382	return ev_realloc (base, elem * *cur);
861	}	1383	}
…		…
864	memset ((void )(base), 0, sizeof ((base)) * (count))	1386	memset ((void )(base), 0, sizeof ((base)) * (count))
865		1387
866	#define array_needsize(type,base,cur,cnt,init) \	1388	#define array_needsize(type,base,cur,cnt,init) \
867	if (expect_false ((cnt) > (cur))) \	1389	if (expect_false ((cnt) > (cur))) \
868	{ \	1390	{ \
869	int ocur_ = (cur); \	1391	int ecb_unused ocur_ = (cur); \
870	(base) = (type *)array_realloc \	1392	(base) = (type *)array_realloc \
871	(sizeof (type), (base), &(cur), (cnt)); \	1393	(sizeof (type), (base), &(cur), (cnt)); \
872	init ((base) + (ocur_), (cur) - ocur_); \	1394	init ((base) + (ocur_), (cur) - ocur_); \
873	}	1395	}
874		1396
…		…
980	for (i = 0; i < fdchangecnt; ++i)	1502	for (i = 0; i < fdchangecnt; ++i)
981	{	1503	{
982	int fd = fdchanges [i];	1504	int fd = fdchanges [i];
983	ANFD *anfd = anfds + fd;	1505	ANFD *anfd = anfds + fd;
984		1506
985	if (anfd->reify & EV__IOFDSET)	1507	if (anfd->reify & EV__IOFDSET && anfd->head)
986	{	1508	{
987	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);	1509	SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
988		1510
989	if (handle != anfd->handle)	1511	if (handle != anfd->handle)
990	{	1512	{
…		…
1044	fdchanges [fdchangecnt - 1] = fd;	1566	fdchanges [fdchangecnt - 1] = fd;
1045	}	1567	}
1046	}	1568	}
1047		1569
1048	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1570	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1049	inline_speed void	1571	inline_speed void ecb_cold
1050	fd_kill (EV_P_ int fd)	1572	fd_kill (EV_P_ int fd)
1051	{	1573	{
1052	ev_io *w;	1574	ev_io *w;
1053		1575
1054	while ((w = (ev_io *)anfds [fd].head))	1576	while ((w = (ev_io *)anfds [fd].head))
…		…
1057	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	1579	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
1058	}	1580	}
1059	}	1581	}
1060		1582
1061	/* check whether the given fd is actually valid, for error recovery */	1583	/* check whether the given fd is actually valid, for error recovery */
1062	inline_size int	1584	inline_size int ecb_cold
1063	fd_valid (int fd)	1585	fd_valid (int fd)
1064	{	1586	{
1065	#ifdef _WIN32	1587	#ifdef _WIN32
1066	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1588	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1067	#else	1589	#else
1068	return fcntl (fd, F_GETFD) != -1;	1590	return fcntl (fd, F_GETFD) != -1;
1069	#endif	1591	#endif
1070	}	1592	}
1071		1593
1072	/* called on EBADF to verify fds */	1594	/* called on EBADF to verify fds */
1073	static void noinline	1595	static void noinline ecb_cold
1074	fd_ebadf (EV_P)	1596	fd_ebadf (EV_P)
1075	{	1597	{
1076	int fd;	1598	int fd;
1077		1599
1078	for (fd = 0; fd < anfdmax; ++fd)	1600	for (fd = 0; fd < anfdmax; ++fd)
…		…
1080	if (!fd_valid (fd) && errno == EBADF)	1602	if (!fd_valid (fd) && errno == EBADF)
1081	fd_kill (EV_A_ fd);	1603	fd_kill (EV_A_ fd);
1082	}	1604	}
1083		1605
1084	/* called on ENOMEM in select/poll to kill some fds and retry */	1606	/* called on ENOMEM in select/poll to kill some fds and retry */
1085	static void noinline	1607	static void noinline ecb_cold
1086	fd_enomem (EV_P)	1608	fd_enomem (EV_P)
1087	{	1609	{
1088	int fd;	1610	int fd;
1089		1611
1090	for (fd = anfdmax; fd--; )	1612	for (fd = anfdmax; fd--; )
…		…
1285		1807
1286	/*****************************************************************************/	1808	/*****************************************************************************/
1287		1809
1288	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE	1810	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1289		1811
1290	static void noinline	1812	static void noinline ecb_cold
1291	evpipe_init (EV_P)	1813	evpipe_init (EV_P)
1292	{	1814	{
1293	if (!ev_is_active (&pipe_w))	1815	if (!ev_is_active (&pipe_w))
1294	{	1816	{
1295	# if EV_USE_EVENTFD	1817	# if EV_USE_EVENTFD
…		…
1317	ev_io_start (EV_A_ &pipe_w);	1839	ev_io_start (EV_A_ &pipe_w);
1318	ev_unref (EV_A); /* watcher should not keep loop alive */	1840	ev_unref (EV_A); /* watcher should not keep loop alive */
1319	}	1841	}
1320	}	1842	}
1321		1843
1322	inline_size void	1844	inline_speed void
1323	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1845	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1324	{	1846	{
1325	if (!*flag)	1847	if (expect_true (*flag))
		1848	return;
		1849
		1850	*flag = 1;
		1851
		1852	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1853
		1854	pipe_write_skipped = 1;
		1855
		1856	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1857
		1858	if (pipe_write_wanted)
1326	{	1859	{
		1860	int old_errno;
		1861
		1862	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1863
1327	int old_errno = errno; /* save errno because write might clobber it */	1864	old_errno = errno; /* save errno because write will clobber it */
1328	char dummy;
1329
1330	*flag = 1;
1331		1865
1332	#if EV_USE_EVENTFD	1866	#if EV_USE_EVENTFD
1333	if (evfd >= 0)	1867	if (evfd >= 0)
1334	{	1868	{
1335	uint64_t counter = 1;	1869	uint64_t counter = 1;
1336	write (evfd, &counter, sizeof (uint64_t));	1870	write (evfd, &counter, sizeof (uint64_t));
1337	}	1871	}
1338	else	1872	else
1339	#endif	1873	#endif
		1874	{
1340	/* win32 people keep sending patches that change this write() to send() */	1875	/* win32 people keep sending patches that change this write() to send() */
1341	/* and then run away. but send() is wrong, it wants a socket handle on win32 */	1876	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1342	/* so when you think this write should be a send instead, please find out */	1877	/* so when you think this write should be a send instead, please find out */
1343	/* where your send() is from - it's definitely not the microsoft send, and */	1878	/* where your send() is from - it's definitely not the microsoft send, and */
1344	/* tell me. thank you. */	1879	/* tell me. thank you. */
		1880	/* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
		1881	/* check the ev documentation on how to use this flag */
1345	write (evpipe [1], &dummy, 1);	1882	write (evpipe [1], &(evpipe [1]), 1);
		1883	}
1346		1884
1347	errno = old_errno;	1885	errno = old_errno;
1348	}	1886	}
1349	}	1887	}
1350		1888
…		…
1353	static void	1891	static void
1354	pipecb (EV_P_ ev_io *iow, int revents)	1892	pipecb (EV_P_ ev_io *iow, int revents)
1355	{	1893	{
1356	int i;	1894	int i;
1357		1895
		1896	if (revents & EV_READ)
		1897	{
1358	#if EV_USE_EVENTFD	1898	#if EV_USE_EVENTFD
1359	if (evfd >= 0)	1899	if (evfd >= 0)
1360	{	1900	{
1361	uint64_t counter;	1901	uint64_t counter;
1362	read (evfd, &counter, sizeof (uint64_t));	1902	read (evfd, &counter, sizeof (uint64_t));
1363	}	1903	}
1364	else	1904	else
1365	#endif	1905	#endif
1366	{	1906	{
1367	char dummy;	1907	char dummy;
1368	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1908	/* see discussion in evpipe_write when you think this read should be recv in win32 */
1369	read (evpipe [0], &dummy, 1);	1909	read (evpipe [0], &dummy, 1);
		1910	}
1370	}	1911	}
		1912
		1913	pipe_write_skipped = 0;
1371		1914
1372	#if EV_SIGNAL_ENABLE	1915	#if EV_SIGNAL_ENABLE
1373	if (sig_pending)	1916	if (sig_pending)
1374	{	1917	{
1375	sig_pending = 0;	1918	sig_pending = 0;
1376		1919
1377	for (i = EV_NSIG - 1; i--; )	1920	for (i = EV_NSIG - 1; i--; )
1378	if (expect_false (signals [i].pending))	1921	if (expect_false (signals [i].pending))
1379	ev_feed_signal_event (EV_A_ i + 1);	1922	ev_feed_signal_event (EV_A_ i + 1);
…		…
1404	EV_P = signals [signum - 1].loop;	1947	EV_P = signals [signum - 1].loop;
1405		1948
1406	if (!EV_A)	1949	if (!EV_A)
1407	return;	1950	return;
1408	#endif	1951	#endif
		1952
		1953	if (!ev_active (&pipe_w))
		1954	return;
1409		1955
1410	signals [signum - 1].pending = 1;	1956	signals [signum - 1].pending = 1;
1411	evpipe_write (EV_A_ &sig_pending);	1957	evpipe_write (EV_A_ &sig_pending);
1412	}	1958	}
1413		1959
…		…
1545	#endif	2091	#endif
1546	#if EV_USE_SELECT	2092	#if EV_USE_SELECT
1547	# include "ev_select.c"	2093	# include "ev_select.c"
1548	#endif	2094	#endif
1549		2095
1550	int	2096	int ecb_cold
1551	ev_version_major (void)	2097	ev_version_major (void)
1552	{	2098	{
1553	return EV_VERSION_MAJOR;	2099	return EV_VERSION_MAJOR;
1554	}	2100	}
1555		2101
1556	int	2102	int ecb_cold
1557	ev_version_minor (void)	2103	ev_version_minor (void)
1558	{	2104	{
1559	return EV_VERSION_MINOR;	2105	return EV_VERSION_MINOR;
1560	}	2106	}
1561		2107
1562	/* return true if we are running with elevated privileges and should ignore env variables */	2108	/* return true if we are running with elevated privileges and should ignore env variables */
1563	int inline_size	2109	int inline_size ecb_cold
1564	enable_secure (void)	2110	enable_secure (void)
1565	{	2111	{
1566	#ifdef _WIN32	2112	#ifdef _WIN32
1567	return 0;	2113	return 0;
1568	#else	2114	#else
1569	return getuid () != geteuid ()	2115	return getuid () != geteuid ()
1570	\|\| getgid () != getegid ();	2116	\|\| getgid () != getegid ();
1571	#endif	2117	#endif
1572	}	2118	}
1573		2119
1574	unsigned int	2120	unsigned int ecb_cold
1575	ev_supported_backends (void)	2121	ev_supported_backends (void)
1576	{	2122	{
1577	unsigned int flags = 0;	2123	unsigned int flags = 0;
1578		2124
1579	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;	2125	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
…		…
1583	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;	2129	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
1584		2130
1585	return flags;	2131	return flags;
1586	}	2132	}
1587		2133
1588	unsigned int	2134	unsigned int ecb_cold
1589	ev_recommended_backends (void)	2135	ev_recommended_backends (void)
1590	{	2136	{
1591	unsigned int flags = ev_supported_backends ();	2137	unsigned int flags = ev_supported_backends ();
1592		2138
1593	#ifndef __NetBSD__	2139	#ifndef __NetBSD__
…		…
1605	#endif	2151	#endif
1606		2152
1607	return flags;	2153	return flags;
1608	}	2154	}
1609		2155
1610	unsigned int	2156	unsigned int ecb_cold
1611	ev_embeddable_backends (void)	2157	ev_embeddable_backends (void)
1612	{	2158	{
1613	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;	2159	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
1614		2160
1615	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2161	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
…		…
1660	ev_userdata (EV_P)	2206	ev_userdata (EV_P)
1661	{	2207	{
1662	return userdata;	2208	return userdata;
1663	}	2209	}
1664		2210
		2211	void
1665	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2212	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1666	{	2213	{
1667	invoke_cb = invoke_pending_cb;	2214	invoke_cb = invoke_pending_cb;
1668	}	2215	}
1669		2216
		2217	void
1670	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))	2218	ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
1671	{	2219	{
1672	release_cb = release;	2220	release_cb = release;
1673	acquire_cb = acquire;	2221	acquire_cb = acquire;
1674	}	2222	}
1675	#endif	2223	#endif
1676		2224
1677	/* initialise a loop structure, must be zero-initialised */	2225	/* initialise a loop structure, must be zero-initialised */
1678	static void noinline	2226	static void noinline ecb_cold
1679	loop_init (EV_P_ unsigned int flags)	2227	loop_init (EV_P_ unsigned int flags)
1680	{	2228	{
1681	if (!backend)	2229	if (!backend)
1682	{	2230	{
1683	origflags = flags;	2231	origflags = flags;
…		…
1711	if (!(flags & EVFLAG_NOENV)	2259	if (!(flags & EVFLAG_NOENV)
1712	&& !enable_secure ()	2260	&& !enable_secure ()
1713	&& getenv ("LIBEV_FLAGS"))	2261	&& getenv ("LIBEV_FLAGS"))
1714	flags = atoi (getenv ("LIBEV_FLAGS"));	2262	flags = atoi (getenv ("LIBEV_FLAGS"));
1715		2263
1716	ev_rt_now = ev_time ();	2264	ev_rt_now = ev_time ();
1717	mn_now = get_clock ();	2265	mn_now = get_clock ();
1718	now_floor = mn_now;	2266	now_floor = mn_now;
1719	rtmn_diff = ev_rt_now - mn_now;	2267	rtmn_diff = ev_rt_now - mn_now;
1720	#if EV_FEATURE_API	2268	#if EV_FEATURE_API
1721	invoke_cb = ev_invoke_pending;	2269	invoke_cb = ev_invoke_pending;
1722	#endif	2270	#endif
1723		2271
1724	io_blocktime = 0.;	2272	io_blocktime = 0.;
1725	timeout_blocktime = 0.;	2273	timeout_blocktime = 0.;
1726	backend = 0;	2274	backend = 0;
1727	backend_fd = -1;	2275	backend_fd = -1;
1728	sig_pending = 0;	2276	sig_pending = 0;
1729	#if EV_ASYNC_ENABLE	2277	#if EV_ASYNC_ENABLE
1730	async_pending = 0;	2278	async_pending = 0;
1731	#endif	2279	#endif
		2280	pipe_write_skipped = 0;
		2281	pipe_write_wanted = 0;
1732	#if EV_USE_INOTIFY	2282	#if EV_USE_INOTIFY
1733	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2283	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1734	#endif	2284	#endif
1735	#if EV_USE_SIGNALFD	2285	#if EV_USE_SIGNALFD
1736	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2286	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1737	#endif	2287	#endif
1738		2288
1739	if (!(flags & EVBACKEND_MASK))	2289	if (!(flags & EVBACKEND_MASK))
1740	flags \|= ev_recommended_backends ();	2290	flags \|= ev_recommended_backends ();
1741		2291
…		…
1766	#endif	2316	#endif
1767	}	2317	}
1768	}	2318	}
1769		2319
1770	/* free up a loop structure */	2320	/* free up a loop structure */
1771	void	2321	void ecb_cold
1772	ev_loop_destroy (EV_P)	2322	ev_loop_destroy (EV_P)
1773	{	2323	{
1774	int i;	2324	int i;
1775		2325
1776	#if EV_MULTIPLICITY	2326	#if EV_MULTIPLICITY
…		…
1906	infy_fork (EV_A);	2456	infy_fork (EV_A);
1907	#endif	2457	#endif
1908		2458
1909	if (ev_is_active (&pipe_w))	2459	if (ev_is_active (&pipe_w))
1910	{	2460	{
1911	/* this "locks" the handlers against writing to the pipe */	2461	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1912	/* while we modify the fd vars */
1913	sig_pending = 1;
1914	#if EV_ASYNC_ENABLE
1915	async_pending = 1;
1916	#endif
1917		2462
1918	ev_ref (EV_A);	2463	ev_ref (EV_A);
1919	ev_io_stop (EV_A_ &pipe_w);	2464	ev_io_stop (EV_A_ &pipe_w);
1920		2465
1921	#if EV_USE_EVENTFD	2466	#if EV_USE_EVENTFD
…		…
1939	postfork = 0;	2484	postfork = 0;
1940	}	2485	}
1941		2486
1942	#if EV_MULTIPLICITY	2487	#if EV_MULTIPLICITY
1943		2488
1944	struct ev_loop *	2489	struct ev_loop * ecb_cold
1945	ev_loop_new (unsigned int flags)	2490	ev_loop_new (unsigned int flags)
1946	{	2491	{
1947	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2492	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1948		2493
1949	memset (EV_A, 0, sizeof (struct ev_loop));	2494	memset (EV_A, 0, sizeof (struct ev_loop));
…		…
1957	}	2502	}
1958		2503
1959	#endif /* multiplicity */	2504	#endif /* multiplicity */
1960		2505
1961	#if EV_VERIFY	2506	#if EV_VERIFY
1962	static void noinline	2507	static void noinline ecb_cold
1963	verify_watcher (EV_P_ W w)	2508	verify_watcher (EV_P_ W w)
1964	{	2509	{
1965	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2510	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1966		2511
1967	if (w->pending)	2512	if (w->pending)
1968	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2513	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1969	}	2514	}
1970		2515
1971	static void noinline	2516	static void noinline ecb_cold
1972	verify_heap (EV_P_ ANHE *heap, int N)	2517	verify_heap (EV_P_ ANHE *heap, int N)
1973	{	2518	{
1974	int i;	2519	int i;
1975		2520
1976	for (i = HEAP0; i < N + HEAP0; ++i)	2521	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
1981		2526
1982	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2527	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1983	}	2528	}
1984	}	2529	}
1985		2530
1986	static void noinline	2531	static void noinline ecb_cold
1987	array_verify (EV_P_ W *ws, int cnt)	2532	array_verify (EV_P_ W *ws, int cnt)
1988	{	2533	{
1989	while (cnt--)	2534	while (cnt--)
1990	{	2535	{
1991	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2536	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
1993	}	2538	}
1994	}	2539	}
1995	#endif	2540	#endif
1996		2541
1997	#if EV_FEATURE_API	2542	#if EV_FEATURE_API
1998	void	2543	void ecb_cold
1999	ev_verify (EV_P)	2544	ev_verify (EV_P)
2000	{	2545	{
2001	#if EV_VERIFY	2546	#if EV_VERIFY
2002	int i;	2547	int i;
2003	WL w;	2548	WL w;
…		…
2069	#endif	2614	#endif
2070	}	2615	}
2071	#endif	2616	#endif
2072		2617
2073	#if EV_MULTIPLICITY	2618	#if EV_MULTIPLICITY
2074	struct ev_loop *	2619	struct ev_loop * ecb_cold
2075	#else	2620	#else
2076	int	2621	int
2077	#endif	2622	#endif
2078	ev_default_loop (unsigned int flags)	2623	ev_default_loop (unsigned int flags)
2079	{	2624	{
…		…
2208	}	2753	}
2209	}	2754	}
2210		2755
2211	#if EV_PERIODIC_ENABLE	2756	#if EV_PERIODIC_ENABLE
2212		2757
2213	inline_speed void	2758	static void noinline
2214	periodic_recalc (EV_P_ ev_periodic *w)	2759	periodic_recalc (EV_P_ ev_periodic *w)
2215	{	2760	{
2216	/* TODO: use slow but potentially more correct incremental algo, */	2761	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2217	/* also do not rely on ceil */	2762	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2218	ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;	2763
		2764	/* the above almost always errs on the low side */
		2765	while (at <= ev_rt_now)
		2766	{
		2767	ev_tstamp nat = at + w->interval;
		2768
		2769	/* when resolution fails us, we use ev_rt_now */
		2770	if (expect_false (nat == at))
		2771	{
		2772	at = ev_rt_now;
		2773	break;
		2774	}
		2775
		2776	at = nat;
		2777	}
		2778
		2779	ev_at (w) = at;
2219	}	2780	}
2220		2781
2221	/* make periodics pending */	2782	/* make periodics pending */
2222	inline_size void	2783	inline_size void
2223	periodics_reify (EV_P)	2784	periodics_reify (EV_P)
…		…
2245	downheap (periodics, periodiccnt, HEAP0);	2806	downheap (periodics, periodiccnt, HEAP0);
2246	}	2807	}
2247	else if (w->interval)	2808	else if (w->interval)
2248	{	2809	{
2249	periodic_recalc (EV_A_ w);	2810	periodic_recalc (EV_A_ w);
2250
2251	/* if next trigger time is not sufficiently in the future, put it there */
2252	/* this might happen because of floating point inexactness */
2253	if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2254	{
2255	ev_at (w) += w->interval;
2256
2257	/* if interval is unreasonably low we might still have a time in the past */
2258	/* so correct this. this will make the periodic very inexact, but the user */
2259	/* has effectively asked to get triggered more often than possible */
2260	if (ev_at (w) < ev_rt_now)
2261	ev_at (w) = ev_rt_now;
2262	}
2263
2264	ANHE_at_cache (periodics [HEAP0]);	2811	ANHE_at_cache (periodics [HEAP0]);
2265	downheap (periodics, periodiccnt, HEAP0);	2812	downheap (periodics, periodiccnt, HEAP0);
2266	}	2813	}
2267	else	2814	else
2268	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	2815	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
…		…
2276	}	2823	}
2277	}	2824	}
2278		2825
2279	/* simply recalculate all periodics */	2826	/* simply recalculate all periodics */
2280	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2827	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2281	static void noinline	2828	static void noinline ecb_cold
2282	periodics_reschedule (EV_P)	2829	periodics_reschedule (EV_P)
2283	{	2830	{
2284	int i;	2831	int i;
2285		2832
2286	/* adjust periodics after time jump */	2833	/* adjust periodics after time jump */
…		…
2299	reheap (periodics, periodiccnt);	2846	reheap (periodics, periodiccnt);
2300	}	2847	}
2301	#endif	2848	#endif
2302		2849
2303	/* adjust all timers by a given offset */	2850	/* adjust all timers by a given offset */
2304	static void noinline	2851	static void noinline ecb_cold
2305	timers_reschedule (EV_P_ ev_tstamp adjust)	2852	timers_reschedule (EV_P_ ev_tstamp adjust)
2306	{	2853	{
2307	int i;	2854	int i;
2308		2855
2309	for (i = 0; i < timercnt; ++i)	2856	for (i = 0; i < timercnt; ++i)
…		…
2346	* doesn't hurt either as we only do this on time-jumps or	2893	* doesn't hurt either as we only do this on time-jumps or
2347	* in the unlikely event of having been preempted here.	2894	* in the unlikely event of having been preempted here.
2348	*/	2895	*/
2349	for (i = 4; --i; )	2896	for (i = 4; --i; )
2350	{	2897	{
		2898	ev_tstamp diff;
2351	rtmn_diff = ev_rt_now - mn_now;	2899	rtmn_diff = ev_rt_now - mn_now;
2352		2900
		2901	diff = odiff - rtmn_diff;
		2902
2353	if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))	2903	if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2354	return; /* all is well */	2904	return; /* all is well */
2355		2905
2356	ev_rt_now = ev_time ();	2906	ev_rt_now = ev_time ();
2357	mn_now = get_clock ();	2907	mn_now = get_clock ();
2358	now_floor = mn_now;	2908	now_floor = mn_now;
…		…
2448	ev_tstamp prev_mn_now = mn_now;	2998	ev_tstamp prev_mn_now = mn_now;
2449		2999
2450	/* update time to cancel out callback processing overhead */	3000	/* update time to cancel out callback processing overhead */
2451	time_update (EV_A_ 1e100);	3001	time_update (EV_A_ 1e100);
2452		3002
		3003	/* from now on, we want a pipe-wake-up */
		3004	pipe_write_wanted = 1;
		3005
		3006	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3007
2453	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt)))	3008	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt \|\| pipe_write_skipped)))
2454	{	3009	{
2455	waittime = MAX_BLOCKTIME;	3010	waittime = MAX_BLOCKTIME;
2456		3011
2457	if (timercnt)	3012	if (timercnt)
2458	{	3013	{
2459	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	3014	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2460	if (waittime > to) waittime = to;	3015	if (waittime > to) waittime = to;
2461	}	3016	}
2462		3017
2463	#if EV_PERIODIC_ENABLE	3018	#if EV_PERIODIC_ENABLE
2464	if (periodiccnt)	3019	if (periodiccnt)
2465	{	3020	{
2466	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	3021	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2467	if (waittime > to) waittime = to;	3022	if (waittime > to) waittime = to;
2468	}	3023	}
2469	#endif	3024	#endif
2470		3025
2471	/* don't let timeouts decrease the waittime below timeout_blocktime */	3026	/* don't let timeouts decrease the waittime below timeout_blocktime */
2472	if (expect_false (waittime < timeout_blocktime))	3027	if (expect_false (waittime < timeout_blocktime))
2473	waittime = timeout_blocktime;	3028	waittime = timeout_blocktime;
		3029
		3030	/* at this point, we NEED to wait, so we have to ensure */
		3031	/* to pass a minimum nonzero value to the backend */
		3032	if (expect_false (waittime < backend_mintime))
		3033	waittime = backend_mintime;
2474		3034
2475	/* extra check because io_blocktime is commonly 0 */	3035	/* extra check because io_blocktime is commonly 0 */
2476	if (expect_false (io_blocktime))	3036	if (expect_false (io_blocktime))
2477	{	3037	{
2478	sleeptime = io_blocktime - (mn_now - prev_mn_now);	3038	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2479		3039
2480	if (sleeptime > waittime - backend_fudge)	3040	if (sleeptime > waittime - backend_mintime)
2481	sleeptime = waittime - backend_fudge;	3041	sleeptime = waittime - backend_mintime;
2482		3042
2483	if (expect_true (sleeptime > 0.))	3043	if (expect_true (sleeptime > 0.))
2484	{	3044	{
2485	ev_sleep (sleeptime);	3045	ev_sleep (sleeptime);
2486	waittime -= sleeptime;	3046	waittime -= sleeptime;
…		…
2493	#endif	3053	#endif
2494	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3054	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2495	backend_poll (EV_A_ waittime);	3055	backend_poll (EV_A_ waittime);
2496	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3056	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2497		3057
		3058	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
		3059
		3060	if (pipe_write_skipped)
		3061	{
		3062	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		3063	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		3064	}
		3065
		3066
2498	/* update ev_rt_now, do magic */	3067	/* update ev_rt_now, do magic */
2499	time_update (EV_A_ waittime + sleeptime);	3068	time_update (EV_A_ waittime + sleeptime);
2500	}	3069	}
2501		3070
2502	/* queue pending timers and reschedule them */	3071	/* queue pending timers and reschedule them */
…		…
2752		3321
2753	void noinline	3322	void noinline
2754	ev_timer_again (EV_P_ ev_timer *w)	3323	ev_timer_again (EV_P_ ev_timer *w)
2755	{	3324	{
2756	EV_FREQUENT_CHECK;	3325	EV_FREQUENT_CHECK;
		3326
		3327	clear_pending (EV_A_ (W)w);
2757		3328
2758	if (ev_is_active (w))	3329	if (ev_is_active (w))
2759	{	3330	{
2760	if (w->repeat)	3331	if (w->repeat)
2761	{	3332	{
…		…
3078	if (!pend \|\| pend == path)	3649	if (!pend \|\| pend == path)
3079	break;	3650	break;
3080		3651
3081	*pend = 0;	3652	*pend = 0;
3082	w->wd = inotify_add_watch (fs_fd, path, mask);	3653	w->wd = inotify_add_watch (fs_fd, path, mask);
3083	}	3654	}
3084	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));	3655	while (w->wd < 0 && (errno == ENOENT \|\| errno == EACCES));
3085	}	3656	}
3086	}	3657	}
3087		3658
3088	if (w->wd >= 0)	3659	if (w->wd >= 0)
…		…
3155	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3726	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3156	ofs += sizeof (struct inotify_event) + ev->len;	3727	ofs += sizeof (struct inotify_event) + ev->len;
3157	}	3728	}
3158	}	3729	}
3159		3730
3160	inline_size void	3731	inline_size void ecb_cold
3161	ev_check_2625 (EV_P)	3732	ev_check_2625 (EV_P)
3162	{	3733	{
3163	/* kernels < 2.6.25 are borked	3734	/* kernels < 2.6.25 are borked
3164	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3735	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3165	*/	3736	*/
…		…
3790	}	4361	}
3791		4362
3792	/*****************************************************************************/	4363	/*****************************************************************************/
3793		4364
3794	#if EV_WALK_ENABLE	4365	#if EV_WALK_ENABLE
3795	void	4366	void ecb_cold
3796	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))	4367	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))
3797	{	4368	{
3798	int i, j;	4369	int i, j;
3799	ev_watcher_list wl, wn;	4370	ev_watcher_list wl, wn;
3800		4371
…		…
3844	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4415	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3845	#endif	4416	#endif
3846		4417
3847	#if EV_IDLE_ENABLE	4418	#if EV_IDLE_ENABLE
3848	if (types & EV_IDLE)	4419	if (types & EV_IDLE)
3849	for (j = NUMPRI; i--; )	4420	for (j = NUMPRI; j--; )
3850	for (i = idlecnt [j]; i--; )	4421	for (i = idlecnt [j]; i--; )
3851	cb (EV_A_ EV_IDLE, idles [j][i]);	4422	cb (EV_A_ EV_IDLE, idles [j][i]);
3852	#endif	4423	#endif
3853		4424
3854	#if EV_FORK_ENABLE	4425	#if EV_FORK_ENABLE
…		…
3907		4478
3908	#if EV_MULTIPLICITY	4479	#if EV_MULTIPLICITY
3909	#include "ev_wrap.h"	4480	#include "ev_wrap.h"
3910	#endif	4481	#endif
3911		4482
3912	EV_CPP(})
3913

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Comparing libev/ev.c (file contents): Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC vs. Revision 1.414 by root, Sat Mar 24 19:38:51 2012 UTC

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Comparing libev/ev.c (file contents):
Revision 1.371 by root, Mon Feb 7 21:45:32 2011 UTC vs.
Revision 1.414 by root, Sat Mar 24 19:38:51 2012 UTC