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Comparing libev/ev.c (file contents):
Revision 1.374 by root, Sat Feb 26 15:21:01 2011 UTC vs.
Revision 1.448 by root, Tue Jul 24 16:28:08 2012 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
59	# endif	59	# endif
60	# ifndef EV_USE_MONOTONIC	60	# ifndef EV_USE_MONOTONIC
61	# define EV_USE_MONOTONIC 1	61	# define EV_USE_MONOTONIC 1
62	# endif	62	# endif
63	# endif	63	# endif
64	# elif !defined(EV_USE_CLOCK_SYSCALL)	64	# elif !defined EV_USE_CLOCK_SYSCALL
65	# define EV_USE_CLOCK_SYSCALL 0	65	# define EV_USE_CLOCK_SYSCALL 0
66	# endif	66	# endif
67		67
68	# if HAVE_CLOCK_GETTIME	68	# if HAVE_CLOCK_GETTIME
69	# ifndef EV_USE_MONOTONIC	69	# ifndef EV_USE_MONOTONIC
…		…
183	# include EV_H	183	# include EV_H
184	#else	184	#else
185	# include "ev.h"	185	# include "ev.h"
186	#endif	186	#endif
187		187
188	EV_CPP(extern "C" {)	188	#if EV_NO_THREADS
		189	# undef EV_NO_SMP
		190	# define EV_NO_SMP 1
		191	# undef ECB_NO_THREADS
		192	# define ECB_NO_THREADS 1
		193	#endif
		194	#if EV_NO_SMP
		195	# undef EV_NO_SMP
		196	# define ECB_NO_SMP 1
		197	#endif
189		198
190	#ifndef _WIN32	199	#ifndef _WIN32
191	# include <sys/time.h>	200	# include <sys/time.h>
192	# include <sys/wait.h>	201	# include <sys/wait.h>
193	# include <unistd.h>	202	# include <unistd.h>
194	#else	203	#else
195	# include <io.h>	204	# include <io.h>
196	# define WIN32_LEAN_AND_MEAN	205	# define WIN32_LEAN_AND_MEAN
		206	# include <winsock2.h>
197	# include <windows.h>	207	# include <windows.h>
198	# ifndef EV_SELECT_IS_WINSOCKET	208	# ifndef EV_SELECT_IS_WINSOCKET
199	# define EV_SELECT_IS_WINSOCKET 1	209	# define EV_SELECT_IS_WINSOCKET 1
200	# endif	210	# endif
201	# undef EV_AVOID_STDIO	211	# undef EV_AVOID_STDIO
…		…
210	#define _DARWIN_UNLIMITED_SELECT 1	220	#define _DARWIN_UNLIMITED_SELECT 1
211		221
212	/* this block tries to deduce configuration from header-defined symbols and defaults */	222	/* this block tries to deduce configuration from header-defined symbols and defaults */
213		223
214	/* try to deduce the maximum number of signals on this platform */	224	/* try to deduce the maximum number of signals on this platform */
215	#if defined (EV_NSIG)	225	#if defined EV_NSIG
216	/* use what's provided */	226	/* use what's provided */
217	#elif defined (NSIG)	227	#elif defined NSIG
218	# define EV_NSIG (NSIG)	228	# define EV_NSIG (NSIG)
219	#elif defined(_NSIG)	229	#elif defined _NSIG
220	# define EV_NSIG (_NSIG)	230	# define EV_NSIG (_NSIG)
221	#elif defined (SIGMAX)	231	#elif defined SIGMAX
222	# define EV_NSIG (SIGMAX+1)	232	# define EV_NSIG (SIGMAX+1)
223	#elif defined (SIG_MAX)	233	#elif defined SIG_MAX
224	# define EV_NSIG (SIG_MAX+1)	234	# define EV_NSIG (SIG_MAX+1)
225	#elif defined (_SIG_MAX)	235	#elif defined _SIG_MAX
226	# define EV_NSIG (_SIG_MAX+1)	236	# define EV_NSIG (_SIG_MAX+1)
227	#elif defined (MAXSIG)	237	#elif defined MAXSIG
228	# define EV_NSIG (MAXSIG+1)	238	# define EV_NSIG (MAXSIG+1)
229	#elif defined (MAX_SIG)	239	#elif defined MAX_SIG
230	# define EV_NSIG (MAX_SIG+1)	240	# define EV_NSIG (MAX_SIG+1)
231	#elif defined (SIGARRAYSIZE)	241	#elif defined SIGARRAYSIZE
232	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233	#elif defined (_sys_nsig)	243	#elif defined _sys_nsig
234	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235	#else	245	#else
236	# error "unable to find value for NSIG, please report"	246	# error "unable to find value for NSIG, please report"
237	/* to make it compile regardless, just remove the above line, */	247	/* to make it compile regardless, just remove the above line, */
238	/* but consider reporting it, too! :) */	248	/* but consider reporting it, too! :) */
…		…
250	# define EV_USE_CLOCK_SYSCALL 0	260	# define EV_USE_CLOCK_SYSCALL 0
251	# endif	261	# endif
252	#endif	262	#endif
253		263
254	#ifndef EV_USE_MONOTONIC	264	#ifndef EV_USE_MONOTONIC
255	# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0	265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256	# define EV_USE_MONOTONIC EV_FEATURE_OS	266	# define EV_USE_MONOTONIC EV_FEATURE_OS
257	# else	267	# else
258	# define EV_USE_MONOTONIC 0	268	# define EV_USE_MONOTONIC 0
259	# endif	269	# endif
260	#endif	270	#endif
…		…
350	#endif	360	#endif
351		361
352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	362	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353	/* which makes programs even slower. might work on other unices, too. */	363	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	364	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	365	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	366	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	367	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	369	# define EV_USE_MONOTONIC 1
360	# else	370	# else
…		…
386	# define EV_USE_INOTIFY 0	396	# define EV_USE_INOTIFY 0
387	#endif	397	#endif
388		398
389	#if !EV_USE_NANOSLEEP	399	#if !EV_USE_NANOSLEEP
390	/* hp-ux has it in sys/time.h, which we unconditionally include above */	400	/* hp-ux has it in sys/time.h, which we unconditionally include above */
391	# if !defined(_WIN32) && !defined(__hpux)	401	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	402	# include <sys/select.h>
393	# endif	403	# endif
394	#endif	404	#endif
395		405
396	#if EV_USE_INOTIFY	406	#if EV_USE_INOTIFY
…		…
399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	409	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400	# ifndef IN_DONT_FOLLOW	410	# ifndef IN_DONT_FOLLOW
401	# undef EV_USE_INOTIFY	411	# undef EV_USE_INOTIFY
402	# define EV_USE_INOTIFY 0	412	# define EV_USE_INOTIFY 0
403	# endif	413	# endif
404	#endif
405
406	#if EV_SELECT_IS_WINSOCKET
407	# include <winsock.h>
408	#endif	414	#endif
409		415
410	#if EV_USE_EVENTFD	416	#if EV_USE_EVENTFD
411	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412	# include <stdint.h>	418	# include <stdint.h>
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	470	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		471
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	472	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	473	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		474
		475	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
		476	/* ECB.H BEGIN */
		477	/*
		478	* libecb - http://software.schmorp.de/pkg/libecb
		479	*
		480	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		481	* Copyright (©) 2011 Emanuele Giaquinta
		482	* All rights reserved.
		483	*
		484	* Redistribution and use in source and binary forms, with or without modifica-
		485	* tion, are permitted provided that the following conditions are met:
		486	*
		487	* 1. Redistributions of source code must retain the above copyright notice,
		488	* this list of conditions and the following disclaimer.
		489	*
		490	* 2. Redistributions in binary form must reproduce the above copyright
		491	* notice, this list of conditions and the following disclaimer in the
		492	* documentation and/or other materials provided with the distribution.
		493	*
		494	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		495	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		496	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		497	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		498	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		499	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		500	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		501	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		502	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		503	* OF THE POSSIBILITY OF SUCH DAMAGE.
		504	*/
		505
		506	#ifndef ECB_H
		507	#define ECB_H
		508
		509	/* 16 bits major, 16 bits minor */
		510	#define ECB_VERSION 0x00010001
		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;
469	#if __GNUC__ >= 4	519	#if __GNUC__
470	# define expect(expr,value) __builtin_expect ((expr),(value))	520	typedef signed long long int64_t;
471	# 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
		526	#ifdef _WIN64
		527	#define ECB_PTRSIZE 8
		528	typedef uint64_t uintptr_t;
		529	typedef int64_t intptr_t;
		530	#else
		531	#define ECB_PTRSIZE 4
		532	typedef uint32_t uintptr_t;
		533	typedef int32_t intptr_t;
		534	#endif
		535	typedef intptr_t ptrdiff_t;
472	#else	536	#else
473	# define expect(expr,value) (expr)	537	#include <inttypes.h>
474	# define noinline	538	#if UINTMAX_MAX > 0xffffffffU
475	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2	539	#define ECB_PTRSIZE 8
476	# define inline	540	#else
		541	#define ECB_PTRSIZE 4
		542	#endif
477	# endif	543	#endif
		544
		545	/* many compilers define _GNUC_ to some versions but then only implement
		546	* what their idiot authors think are the "more important" extensions,
		547	* causing enormous grief in return for some better fake benchmark numbers.
		548	* or so.
		549	* we try to detect these and simply assume they are not gcc - if they have
		550	* an issue with that they should have done it right in the first place.
		551	*/
		552	#ifndef ECB_GCC_VERSION
		553	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
		554	#define ECB_GCC_VERSION(major,minor) 0
		555	#else
		556	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
478	#endif	557	#endif
		558	#endif
479		559
		560	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		561	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		562	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		563	#define ECB_CPP (__cplusplus+0)
		564	#define ECB_CPP11 (__cplusplus >= 201103L)
		565
		566	/*****************************************************************************/
		567
		568	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		569	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		570
		571	#if ECB_NO_THREADS
		572	#define ECB_NO_SMP 1
		573	#endif
		574
		575	#if ECB_NO_SMP
		576	#define ECB_MEMORY_FENCE do { } while (0)
		577	#endif
		578
		579	#ifndef ECB_MEMORY_FENCE
		580	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		581	#if __i386 || __i386__
		582	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		583	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		584	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		585	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		586	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		587	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		588	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		589	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		590	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		591	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		592	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		593	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		594	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		595	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		596	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		597	#elif __sparc || __sparc__
		598	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		599	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		600	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		601	#elif defined __s390__ || defined __s390x__
		602	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		603	#elif defined __mips__
		604	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		605	#elif defined __alpha__
		606	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		607	#elif defined __hppa__
		608	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		610	#elif defined __ia64__
		611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		612	#endif
		613	#endif
		614	#endif
		615
		616	#ifndef ECB_MEMORY_FENCE
		617	#if ECB_GCC_VERSION(4,7)
		618	/* see comment below (stdatomic.h) about the C11 memory model. */
		619	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		620	#elif defined __clang && __has_feature (cxx_atomic)
		621	/* see comment below (stdatomic.h) about the C11 memory model. */
		622	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		623	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		624	#define ECB_MEMORY_FENCE __sync_synchronize ()
		625	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		626	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		627	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		628	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		629	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		630	#elif defined _WIN32
		631	#include <WinNT.h>
		632	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		633	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		634	#include <mbarrier.h>
		635	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		636	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		637	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		638	#elif __xlC__
		639	#define ECB_MEMORY_FENCE __sync ()
		640	#endif
		641	#endif
		642
		643	#ifndef ECB_MEMORY_FENCE
		644	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		645	/* we assume that these memory fences work on all variables/all memory accesses, */
		646	/* not just C11 atomics and atomic accesses */
		647	#include <stdatomic.h>
		648	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		649	/* any fence other than seq_cst, which isn't very efficient for us. */
		650	/* Why that is, we don't know - either the C11 memory model is quite useless */
		651	/* for most usages, or gcc and clang have a bug */
		652	/* I *currently* lean towards the latter, and inefficiently implement */
		653	/* all three of ecb's fences as a seq_cst fence */
		654	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		655	#endif
		656	#endif
		657
		658	#ifndef ECB_MEMORY_FENCE
		659	#if !ECB_AVOID_PTHREADS
		660	/*
		661	* if you get undefined symbol references to pthread_mutex_lock,
		662	* or failure to find pthread.h, then you should implement
		663	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		664	* OR provide pthread.h and link against the posix thread library
		665	* of your system.
		666	*/
		667	#include <pthread.h>
		668	#define ECB_NEEDS_PTHREADS 1
		669	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		670
		671	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		672	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		673	#endif
		674	#endif
		675
		676	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		677	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		678	#endif
		679
		680	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		681	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		682	#endif
		683
		684	/*****************************************************************************/
		685
		686	#if __cplusplus
		687	#define ecb_inline static inline
		688	#elif ECB_GCC_VERSION(2,5)
		689	#define ecb_inline static __inline__
		690	#elif ECB_C99
		691	#define ecb_inline static inline
		692	#else
		693	#define ecb_inline static
		694	#endif
		695
		696	#if ECB_GCC_VERSION(3,3)
		697	#define ecb_restrict __restrict__
		698	#elif ECB_C99
		699	#define ecb_restrict restrict
		700	#else
		701	#define ecb_restrict
		702	#endif
		703
		704	typedef int ecb_bool;
		705
		706	#define ECB_CONCAT_(a, b) a ## b
		707	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		708	#define ECB_STRINGIFY_(a) # a
		709	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		710
		711	#define ecb_function_ ecb_inline
		712
		713	#if ECB_GCC_VERSION(3,1)
		714	#define ecb_attribute(attrlist) __attribute__(attrlist)
		715	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		716	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		717	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		718	#else
		719	#define ecb_attribute(attrlist)
		720	#define ecb_is_constant(expr) 0
		721	#define ecb_expect(expr,value) (expr)
		722	#define ecb_prefetch(addr,rw,locality)
		723	#endif
		724
		725	/* no emulation for ecb_decltype */
		726	#if ECB_GCC_VERSION(4,5)
		727	#define ecb_decltype(x) __decltype(x)
		728	#elif ECB_GCC_VERSION(3,0)
		729	#define ecb_decltype(x) __typeof(x)
		730	#endif
		731
		732	#define ecb_noinline ecb_attribute ((__noinline__))
		733	#define ecb_unused ecb_attribute ((__unused__))
		734	#define ecb_const ecb_attribute ((__const__))
		735	#define ecb_pure ecb_attribute ((__pure__))
		736
		737	#if ECB_C11
		738	#define ecb_noreturn _Noreturn
		739	#else
		740	#define ecb_noreturn ecb_attribute ((__noreturn__))
		741	#endif
		742
		743	#if ECB_GCC_VERSION(4,3)
		744	#define ecb_artificial ecb_attribute ((__artificial__))
		745	#define ecb_hot ecb_attribute ((__hot__))
		746	#define ecb_cold ecb_attribute ((__cold__))
		747	#else
		748	#define ecb_artificial
		749	#define ecb_hot
		750	#define ecb_cold
		751	#endif
		752
		753	/* put around conditional expressions if you are very sure that the */
		754	/* expression is mostly true or mostly false. note that these return */
		755	/* booleans, not the expression. */
480	#define expect_false(expr) expect ((expr) != 0, 0)	756	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481	#define expect_true(expr) expect ((expr) != 0, 1)	757	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		758	/* for compatibility to the rest of the world */
		759	#define ecb_likely(expr) ecb_expect_true (expr)
		760	#define ecb_unlikely(expr) ecb_expect_false (expr)
		761
		762	/* count trailing zero bits and count # of one bits */
		763	#if ECB_GCC_VERSION(3,4)
		764	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		765	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		766	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		767	#define ecb_ctz32(x) __builtin_ctz (x)
		768	#define ecb_ctz64(x) __builtin_ctzll (x)
		769	#define ecb_popcount32(x) __builtin_popcount (x)
		770	/* no popcountll */
		771	#else
		772	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		773	ecb_function_ int
		774	ecb_ctz32 (uint32_t x)
		775	{
		776	int r = 0;
		777
		778	x &= ~x + 1; /* this isolates the lowest bit */
		779
		780	#if ECB_branchless_on_i386
		781	r += !!(x & 0xaaaaaaaa) << 0;
		782	r += !!(x & 0xcccccccc) << 1;
		783	r += !!(x & 0xf0f0f0f0) << 2;
		784	r += !!(x & 0xff00ff00) << 3;
		785	r += !!(x & 0xffff0000) << 4;
		786	#else
		787	if (x & 0xaaaaaaaa) r += 1;
		788	if (x & 0xcccccccc) r += 2;
		789	if (x & 0xf0f0f0f0) r += 4;
		790	if (x & 0xff00ff00) r += 8;
		791	if (x & 0xffff0000) r += 16;
		792	#endif
		793
		794	return r;
		795	}
		796
		797	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		798	ecb_function_ int
		799	ecb_ctz64 (uint64_t x)
		800	{
		801	int shift = x & 0xffffffffU ? 0 : 32;
		802	return ecb_ctz32 (x >> shift) + shift;
		803	}
		804
		805	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		806	ecb_function_ int
		807	ecb_popcount32 (uint32_t x)
		808	{
		809	x -= (x >> 1) & 0x55555555;
		810	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		811	x = ((x >> 4) + x) & 0x0f0f0f0f;
		812	x *= 0x01010101;
		813
		814	return x >> 24;
		815	}
		816
		817	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		818	ecb_function_ int ecb_ld32 (uint32_t x)
		819	{
		820	int r = 0;
		821
		822	if (x >> 16) { x >>= 16; r += 16; }
		823	if (x >> 8) { x >>= 8; r += 8; }
		824	if (x >> 4) { x >>= 4; r += 4; }
		825	if (x >> 2) { x >>= 2; r += 2; }
		826	if (x >> 1) { r += 1; }
		827
		828	return r;
		829	}
		830
		831	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		832	ecb_function_ int ecb_ld64 (uint64_t x)
		833	{
		834	int r = 0;
		835
		836	if (x >> 32) { x >>= 32; r += 32; }
		837
		838	return r + ecb_ld32 (x);
		839	}
		840	#endif
		841
		842	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		843	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		844	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		845	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		846
		847	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		848	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		849	{
		850	return ( (x * 0x0802U & 0x22110U)
		851	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		852	}
		853
		854	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		855	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		856	{
		857	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		858	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		859	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		860	x = ( x >> 8 ) | ( x << 8);
		861
		862	return x;
		863	}
		864
		865	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		866	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		867	{
		868	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		869	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		870	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		871	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		872	x = ( x >> 16 ) | ( x << 16);
		873
		874	return x;
		875	}
		876
		877	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		878	/* so for this version we are lazy */
		879	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		880	ecb_function_ int
		881	ecb_popcount64 (uint64_t x)
		882	{
		883	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		884	}
		885
		886	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		887	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		888	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		889	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		890	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		891	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		892	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		893	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		894
		895	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		896	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		897	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		898	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		899	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		900	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		901	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		902	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		903
		904	#if ECB_GCC_VERSION(4,3)
		905	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		906	#define ecb_bswap32(x) __builtin_bswap32 (x)
		907	#define ecb_bswap64(x) __builtin_bswap64 (x)
		908	#else
		909	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		910	ecb_function_ uint16_t
		911	ecb_bswap16 (uint16_t x)
		912	{
		913	return ecb_rotl16 (x, 8);
		914	}
		915
		916	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		917	ecb_function_ uint32_t
		918	ecb_bswap32 (uint32_t x)
		919	{
		920	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		921	}
		922
		923	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		924	ecb_function_ uint64_t
		925	ecb_bswap64 (uint64_t x)
		926	{
		927	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		928	}
		929	#endif
		930
		931	#if ECB_GCC_VERSION(4,5)
		932	#define ecb_unreachable() __builtin_unreachable ()
		933	#else
		934	/* this seems to work fine, but gcc always emits a warning for it :/ */
		935	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		936	ecb_inline void ecb_unreachable (void) { }
		937	#endif
		938
		939	/* try to tell the compiler that some condition is definitely true */
		940	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		941
		942	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		943	ecb_inline unsigned char
		944	ecb_byteorder_helper (void)
		945	{
		946	const uint32_t u = 0x11223344;
		947	return *(unsigned char *)&u;
		948	}
		949
		950	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		951	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		952	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		953	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		954
		955	#if ECB_GCC_VERSION(3,0) || ECB_C99
		956	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		957	#else
		958	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		959	#endif
		960
		961	#if __cplusplus
		962	template<typename T>
		963	static inline T ecb_div_rd (T val, T div)
		964	{
		965	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		966	}
		967	template<typename T>
		968	static inline T ecb_div_ru (T val, T div)
		969	{
		970	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		971	}
		972	#else
		973	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		974	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		975	#endif
		976
		977	#if ecb_cplusplus_does_not_suck
		978	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		979	template<typename T, int N>
		980	static inline int ecb_array_length (const T (&arr)[N])
		981	{
		982	return N;
		983	}
		984	#else
		985	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		986	#endif
		987
		988	#endif
		989
		990	/* ECB.H END */
		991
		992	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		993	/* if your architecture doesn't need memory fences, e.g. because it is
		994	* single-cpu/core, or if you use libev in a project that doesn't use libev
		995	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		996	* libev, in which cases the memory fences become nops.
		997	* alternatively, you can remove this #error and link against libpthread,
		998	* which will then provide the memory fences.
		999	*/
		1000	# error "memory fences not defined for your architecture, please report"
		1001	#endif
		1002
		1003	#ifndef ECB_MEMORY_FENCE
		1004	# define ECB_MEMORY_FENCE do { } while (0)
		1005	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		1006	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		1007	#endif
		1008
		1009	#define expect_false(cond) ecb_expect_false (cond)
		1010	#define expect_true(cond) ecb_expect_true (cond)
		1011	#define noinline ecb_noinline
		1012
482	#define inline_size static inline	1013	#define inline_size ecb_inline
483		1014
484	#if EV_FEATURE_CODE	1015	#if EV_FEATURE_CODE
485	# define inline_speed static inline	1016	# define inline_speed ecb_inline
486	#else	1017	#else
487	# define inline_speed static noinline	1018	# define inline_speed static noinline
488	#endif	1019	#endif
489		1020
490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1021	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
581		1112
582	#ifdef __linux	1113	#ifdef __linux
583	# include <sys/utsname.h>	1114	# include <sys/utsname.h>
584	#endif	1115	#endif
585		1116
586	static unsigned int noinline	1117	static unsigned int noinline ecb_cold
587	ev_linux_version (void)	1118	ev_linux_version (void)
588	{	1119	{
589	#ifdef __linux	1120	#ifdef __linux
590	unsigned int v = 0;	1121	unsigned int v = 0;
591	struct utsname buf;	1122	struct utsname buf;
…		…
620	}	1151	}
621		1152
622	/*****************************************************************************/	1153	/*****************************************************************************/
623		1154
624	#if EV_AVOID_STDIO	1155	#if EV_AVOID_STDIO
625	static void noinline	1156	static void noinline ecb_cold
626	ev_printerr (const char *msg)	1157	ev_printerr (const char *msg)
627	{	1158	{
628	write (STDERR_FILENO, msg, strlen (msg));	1159	write (STDERR_FILENO, msg, strlen (msg));
629	}	1160	}
630	#endif	1161	#endif
631		1162
632	static void (*syserr_cb)(const char *msg);	1163	static void (*syserr_cb)(const char *msg) EV_THROW;
633		1164
634	void	1165	void ecb_cold
635	ev_set_syserr_cb (void (*cb)(const char *msg))	1166	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636	{	1167	{
637	syserr_cb = cb;	1168	syserr_cb = cb;
638	}	1169	}
639		1170
640	static void noinline	1171	static void noinline ecb_cold
641	ev_syserr (const char *msg)	1172	ev_syserr (const char *msg)
642	{	1173	{
643	if (!msg)	1174	if (!msg)
644	msg = "(libev) system error";	1175	msg = "(libev) system error";
645		1176
…		…
658	abort ();	1189	abort ();
659	}	1190	}
660	}	1191	}
661		1192
662	static void *	1193	static void *
663	ev_realloc_emul (void *ptr, long size)	1194	ev_realloc_emul (void *ptr, long size) EV_THROW
664	{	1195	{
665	#if __GLIBC__
666	return realloc (ptr, size);
667	#else
668	/* some systems, notably openbsd and darwin, fail to properly	1196	/* some systems, notably openbsd and darwin, fail to properly
669	* implement realloc (x, 0) (as required by both ansi c-89 and	1197	* implement realloc (x, 0) (as required by both ansi c-89 and
670	* the single unix specification, so work around them here.	1198	* the single unix specification, so work around them here.
		1199	* recently, also (at least) fedora and debian started breaking it,
		1200	* despite documenting it otherwise.
671	*/	1201	*/
672		1202
673	if (size)	1203	if (size)
674	return realloc (ptr, size);	1204	return realloc (ptr, size);
675		1205
676	free (ptr);	1206	free (ptr);
677	return 0;	1207	return 0;
678	#endif
679	}	1208	}
680		1209
681	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1210	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682		1211
683	void	1212	void ecb_cold
684	ev_set_allocator (void *(*cb)(void *ptr, long size))	1213	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685	{	1214	{
686	alloc = cb;	1215	alloc = cb;
687	}	1216	}
688		1217
689	inline_speed void *	1218	inline_speed void *
…		…
777	#undef VAR	1306	#undef VAR
778	};	1307	};
779	#include "ev_wrap.h"	1308	#include "ev_wrap.h"
780		1309
781	static struct ev_loop default_loop_struct;	1310	static struct ev_loop default_loop_struct;
782	struct ev_loop *ev_default_loop_ptr;	1311	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783		1312
784	#else	1313	#else
785		1314
786	ev_tstamp ev_rt_now;	1315	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
787	#define VAR(name,decl) static decl;	1316	#define VAR(name,decl) static decl;
788	#include "ev_vars.h"	1317	#include "ev_vars.h"
789	#undef VAR	1318	#undef VAR
790		1319
791	static int ev_default_loop_ptr;	1320	static int ev_default_loop_ptr;
…		…
806		1335
807	/*****************************************************************************/	1336	/*****************************************************************************/
808		1337
809	#ifndef EV_HAVE_EV_TIME	1338	#ifndef EV_HAVE_EV_TIME
810	ev_tstamp	1339	ev_tstamp
811	ev_time (void)	1340	ev_time (void) EV_THROW
812	{	1341	{
813	#if EV_USE_REALTIME	1342	#if EV_USE_REALTIME
814	if (expect_true (have_realtime))	1343	if (expect_true (have_realtime))
815	{	1344	{
816	struct timespec ts;	1345	struct timespec ts;
…		…
840	return ev_time ();	1369	return ev_time ();
841	}	1370	}
842		1371
843	#if EV_MULTIPLICITY	1372	#if EV_MULTIPLICITY
844	ev_tstamp	1373	ev_tstamp
845	ev_now (EV_P)	1374	ev_now (EV_P) EV_THROW
846	{	1375	{
847	return ev_rt_now;	1376	return ev_rt_now;
848	}	1377	}
849	#endif	1378	#endif
850		1379
851	void	1380	void
852	ev_sleep (ev_tstamp delay)	1381	ev_sleep (ev_tstamp delay) EV_THROW
853	{	1382	{
854	if (delay > 0.)	1383	if (delay > 0.)
855	{	1384	{
856	#if EV_USE_NANOSLEEP	1385	#if EV_USE_NANOSLEEP
857	struct timespec ts;	1386	struct timespec ts;
858		1387
859	EV_TS_SET (ts, delay);	1388	EV_TS_SET (ts, delay);
860	nanosleep (&ts, 0);	1389	nanosleep (&ts, 0);
861	#elif defined(_WIN32)	1390	#elif defined _WIN32
862	Sleep ((unsigned long)(delay * 1e3));	1391	Sleep ((unsigned long)(delay * 1e3));
863	#else	1392	#else
864	struct timeval tv;	1393	struct timeval tv;
865		1394
866	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1395	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
870	select (0, 0, 0, 0, &tv);	1399	select (0, 0, 0, 0, &tv);
871	#endif	1400	#endif
872	}	1401	}
873	}	1402	}
874		1403
875	inline_speed int
876	ev_timeout_to_ms (ev_tstamp timeout)
877	{
878	int ms = timeout * 1000. + .999999;
879
880	return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
881	}
882
883	/*****************************************************************************/	1404	/*****************************************************************************/
884		1405
885	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */	1406	#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
886		1407
887	/* find a suitable new size for the given array, */	1408	/* find a suitable new size for the given array, */
…		…
893		1414
894	do	1415	do
895	ncur <<= 1;	1416	ncur <<= 1;
896	while (cnt > ncur);	1417	while (cnt > ncur);
897		1418
898	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1419	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
899	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1420	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
900	{	1421	{
901	ncur *= elem;	1422	ncur *= elem;
902	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1423	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
903	ncur = ncur - sizeof (void *) * 4;	1424	ncur = ncur - sizeof (void *) * 4;
…		…
905	}	1426	}
906		1427
907	return ncur;	1428	return ncur;
908	}	1429	}
909		1430
910	static noinline void *	1431	static void * noinline ecb_cold
911	array_realloc (int elem, void *base, int *cur, int cnt)	1432	array_realloc (int elem, void *base, int *cur, int cnt)
912	{	1433	{
913	*cur = array_nextsize (elem, *cur, cnt);	1434	*cur = array_nextsize (elem, *cur, cnt);
914	return ev_realloc (base, elem * *cur);	1435	return ev_realloc (base, elem * *cur);
915	}	1436	}
…		…
918	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1439	memset ((void *)(base), 0, sizeof (*(base)) * (count))
919		1440
920	#define array_needsize(type,base,cur,cnt,init) \	1441	#define array_needsize(type,base,cur,cnt,init) \
921	if (expect_false ((cnt) > (cur))) \	1442	if (expect_false ((cnt) > (cur))) \
922	{ \	1443	{ \
923	int ocur_ = (cur); \	1444	int ecb_unused ocur_ = (cur); \
924	(base) = (type *)array_realloc \	1445	(base) = (type *)array_realloc \
925	(sizeof (type), (base), &(cur), (cnt)); \	1446	(sizeof (type), (base), &(cur), (cnt)); \
926	init ((base) + (ocur_), (cur) - ocur_); \	1447	init ((base) + (ocur_), (cur) - ocur_); \
927	}	1448	}
928		1449
…		…
946	pendingcb (EV_P_ ev_prepare *w, int revents)	1467	pendingcb (EV_P_ ev_prepare *w, int revents)
947	{	1468	{
948	}	1469	}
949		1470
950	void noinline	1471	void noinline
951	ev_feed_event (EV_P_ void *w, int revents)	1472	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
952	{	1473	{
953	W w_ = (W)w;	1474	W w_ = (W)w;
954	int pri = ABSPRI (w_);	1475	int pri = ABSPRI (w_);
955		1476
956	if (expect_false (w_->pending))	1477	if (expect_false (w_->pending))
…		…
960	w_->pending = ++pendingcnt [pri];	1481	w_->pending = ++pendingcnt [pri];
961	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1482	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
962	pendings [pri][w_->pending - 1].w = w_;	1483	pendings [pri][w_->pending - 1].w = w_;
963	pendings [pri][w_->pending - 1].events = revents;	1484	pendings [pri][w_->pending - 1].events = revents;
964	}	1485	}
		1486
		1487	pendingpri = NUMPRI - 1;
965	}	1488	}
966		1489
967	inline_speed void	1490	inline_speed void
968	feed_reverse (EV_P_ W w)	1491	feed_reverse (EV_P_ W w)
969	{	1492	{
…		…
1015	if (expect_true (!anfd->reify))	1538	if (expect_true (!anfd->reify))
1016	fd_event_nocheck (EV_A_ fd, revents);	1539	fd_event_nocheck (EV_A_ fd, revents);
1017	}	1540	}
1018		1541
1019	void	1542	void
1020	ev_feed_fd_event (EV_P_ int fd, int revents)	1543	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1021	{	1544	{
1022	if (fd >= 0 && fd < anfdmax)	1545	if (fd >= 0 && fd < anfdmax)
1023	fd_event_nocheck (EV_A_ fd, revents);	1546	fd_event_nocheck (EV_A_ fd, revents);
1024	}	1547	}
1025		1548
…		…
1098	fdchanges [fdchangecnt - 1] = fd;	1621	fdchanges [fdchangecnt - 1] = fd;
1099	}	1622	}
1100	}	1623	}
1101		1624
1102	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1625	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1103	inline_speed void	1626	inline_speed void ecb_cold
1104	fd_kill (EV_P_ int fd)	1627	fd_kill (EV_P_ int fd)
1105	{	1628	{
1106	ev_io *w;	1629	ev_io *w;
1107		1630
1108	while ((w = (ev_io *)anfds [fd].head))	1631	while ((w = (ev_io *)anfds [fd].head))
…		…
1111	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1634	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1112	}	1635	}
1113	}	1636	}
1114		1637
1115	/* check whether the given fd is actually valid, for error recovery */	1638	/* check whether the given fd is actually valid, for error recovery */
1116	inline_size int	1639	inline_size int ecb_cold
1117	fd_valid (int fd)	1640	fd_valid (int fd)
1118	{	1641	{
1119	#ifdef _WIN32	1642	#ifdef _WIN32
1120	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1643	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1121	#else	1644	#else
1122	return fcntl (fd, F_GETFD) != -1;	1645	return fcntl (fd, F_GETFD) != -1;
1123	#endif	1646	#endif
1124	}	1647	}
1125		1648
1126	/* called on EBADF to verify fds */	1649	/* called on EBADF to verify fds */
1127	static void noinline	1650	static void noinline ecb_cold
1128	fd_ebadf (EV_P)	1651	fd_ebadf (EV_P)
1129	{	1652	{
1130	int fd;	1653	int fd;
1131		1654
1132	for (fd = 0; fd < anfdmax; ++fd)	1655	for (fd = 0; fd < anfdmax; ++fd)
…		…
1134	if (!fd_valid (fd) && errno == EBADF)	1657	if (!fd_valid (fd) && errno == EBADF)
1135	fd_kill (EV_A_ fd);	1658	fd_kill (EV_A_ fd);
1136	}	1659	}
1137		1660
1138	/* called on ENOMEM in select/poll to kill some fds and retry */	1661	/* called on ENOMEM in select/poll to kill some fds and retry */
1139	static void noinline	1662	static void noinline ecb_cold
1140	fd_enomem (EV_P)	1663	fd_enomem (EV_P)
1141	{	1664	{
1142	int fd;	1665	int fd;
1143		1666
1144	for (fd = anfdmax; fd--; )	1667	for (fd = anfdmax; fd--; )
…		…
1339		1862
1340	/*****************************************************************************/	1863	/*****************************************************************************/
1341		1864
1342	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	1865	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1343		1866
1344	static void noinline	1867	static void noinline ecb_cold
1345	evpipe_init (EV_P)	1868	evpipe_init (EV_P)
1346	{	1869	{
1347	if (!ev_is_active (&pipe_w))	1870	if (!ev_is_active (&pipe_w))
1348	{	1871	{
		1872	int fds [2];
		1873
1349	# if EV_USE_EVENTFD	1874	# if EV_USE_EVENTFD
		1875	fds [0] = -1;
1350	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	1876	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1351	if (evfd < 0 && errno == EINVAL)	1877	if (fds [1] < 0 && errno == EINVAL)
1352	evfd = eventfd (0, 0);	1878	fds [1] = eventfd (0, 0);
1353		1879
1354	if (evfd >= 0)	1880	if (fds [1] < 0)
		1881	# endif
1355	{	1882	{
		1883	while (pipe (fds))
		1884	ev_syserr ("(libev) error creating signal/async pipe");
		1885
		1886	fd_intern (fds [0]);
		1887	}
		1888
		1889	fd_intern (fds [1]);
		1890
1356	evpipe [0] = -1;	1891	evpipe [0] = fds [0];
1357	fd_intern (evfd); /* doing it twice doesn't hurt */	1892
1358	ev_io_set (&pipe_w, evfd, EV_READ);	1893	if (evpipe [1] < 0)
		1894	evpipe [1] = fds [1]; /* first call, set write fd */
		1895	else
		1896	{
		1897	/* on subsequent calls, do not change evpipe [1] */
		1898	/* so that evpipe_write can always rely on its value. */
		1899	/* this branch does not do anything sensible on windows, */
		1900	/* so must not be executed on windows */
		1901
		1902	dup2 (fds [1], evpipe [1]);
		1903	close (fds [1]);
		1904	}
		1905
		1906	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		1907	ev_io_start (EV_A_ &pipe_w);
		1908	ev_unref (EV_A); /* watcher should not keep loop alive */
		1909	}
		1910	}
		1911
		1912	inline_speed void
		1913	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		1914	{
		1915	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		1916
		1917	if (expect_true (*flag))
		1918	return;
		1919
		1920	*flag = 1;
		1921	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1922
		1923	pipe_write_skipped = 1;
		1924
		1925	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1926
		1927	if (pipe_write_wanted)
		1928	{
		1929	int old_errno;
		1930
		1931	pipe_write_skipped = 0;
		1932	ECB_MEMORY_FENCE_RELEASE;
		1933
		1934	old_errno = errno; /* save errno because write will clobber it */
		1935
		1936	#if EV_USE_EVENTFD
		1937	if (evpipe [0] < 0)
		1938	{
		1939	uint64_t counter = 1;
		1940	write (evpipe [1], &counter, sizeof (uint64_t));
1359	}	1941	}
1360	else	1942	else
1361	# endif	1943	#endif
1362	{	1944	{
1363	while (pipe (evpipe))	1945	#ifdef _WIN32
1364	ev_syserr ("(libev) error creating signal/async pipe");	1946	WSABUF buf;
1365		1947	DWORD sent;
1366	fd_intern (evpipe [0]);	1948	buf.buf = &buf;
1367	fd_intern (evpipe [1]);	1949	buf.len = 1;
1368	ev_io_set (&pipe_w, evpipe [0], EV_READ);	1950	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		1951	#else
		1952	write (evpipe [1], &(evpipe [1]), 1);
		1953	#endif
1369	}	1954	}
1370
1371	ev_io_start (EV_A_ &pipe_w);
1372	ev_unref (EV_A); /* watcher should not keep loop alive */
1373	}
1374	}
1375
1376	inline_size void
1377	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1378	{
1379	if (!*flag)
1380	{
1381	int old_errno = errno; /* save errno because write might clobber it */
1382	char dummy;
1383
1384	*flag = 1;
1385
1386	#if EV_USE_EVENTFD
1387	if (evfd >= 0)
1388	{
1389	uint64_t counter = 1;
1390	write (evfd, &counter, sizeof (uint64_t));
1391	}
1392	else
1393	#endif
1394	/* win32 people keep sending patches that change this write() to send() */
1395	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1396	/* so when you think this write should be a send instead, please find out */
1397	/* where your send() is from - it's definitely not the microsoft send, and */
1398	/* tell me. thank you. */
1399	write (evpipe [1], &dummy, 1);
1400		1955
1401	errno = old_errno;	1956	errno = old_errno;
1402	}	1957	}
1403	}	1958	}
1404		1959
…		…
1407	static void	1962	static void
1408	pipecb (EV_P_ ev_io *iow, int revents)	1963	pipecb (EV_P_ ev_io *iow, int revents)
1409	{	1964	{
1410	int i;	1965	int i;
1411		1966
		1967	if (revents & EV_READ)
		1968	{
1412	#if EV_USE_EVENTFD	1969	#if EV_USE_EVENTFD
1413	if (evfd >= 0)	1970	if (evpipe [0] < 0)
1414	{	1971	{
1415	uint64_t counter;	1972	uint64_t counter;
1416	read (evfd, &counter, sizeof (uint64_t));	1973	read (evpipe [1], &counter, sizeof (uint64_t));
1417	}	1974	}
1418	else	1975	else
1419	#endif	1976	#endif
1420	{	1977	{
1421	char dummy;	1978	char dummy[4];
1422	/* see discussion in evpipe_write when you think this read should be recv in win32 */	1979	#ifdef _WIN32
		1980	WSABUF buf;
		1981	DWORD recvd;
		1982	DWORD flags = 0;
		1983	buf.buf = dummy;
		1984	buf.len = sizeof (dummy);
		1985	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		1986	#else
1423	read (evpipe [0], &dummy, 1);	1987	read (evpipe [0], &dummy, sizeof (dummy));
		1988	#endif
		1989	}
1424	}	1990	}
		1991
		1992	pipe_write_skipped = 0;
		1993
		1994	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1425		1995
1426	#if EV_SIGNAL_ENABLE	1996	#if EV_SIGNAL_ENABLE
1427	if (sig_pending)	1997	if (sig_pending)
1428	{	1998	{
1429	sig_pending = 0;	1999	sig_pending = 0;
		2000
		2001	ECB_MEMORY_FENCE;
1430		2002
1431	for (i = EV_NSIG - 1; i--; )	2003	for (i = EV_NSIG - 1; i--; )
1432	if (expect_false (signals [i].pending))	2004	if (expect_false (signals [i].pending))
1433	ev_feed_signal_event (EV_A_ i + 1);	2005	ev_feed_signal_event (EV_A_ i + 1);
1434	}	2006	}
…		…
1436		2008
1437	#if EV_ASYNC_ENABLE	2009	#if EV_ASYNC_ENABLE
1438	if (async_pending)	2010	if (async_pending)
1439	{	2011	{
1440	async_pending = 0;	2012	async_pending = 0;
		2013
		2014	ECB_MEMORY_FENCE;
1441		2015
1442	for (i = asynccnt; i--; )	2016	for (i = asynccnt; i--; )
1443	if (asyncs [i]->sent)	2017	if (asyncs [i]->sent)
1444	{	2018	{
1445	asyncs [i]->sent = 0;	2019	asyncs [i]->sent = 0;
		2020	ECB_MEMORY_FENCE_RELEASE;
1446	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2021	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1447	}	2022	}
1448	}	2023	}
1449	#endif	2024	#endif
1450	}	2025	}
1451		2026
1452	/*****************************************************************************/	2027	/*****************************************************************************/
1453		2028
1454	void	2029	void
1455	ev_feed_signal (int signum)	2030	ev_feed_signal (int signum) EV_THROW
1456	{	2031	{
1457	#if EV_MULTIPLICITY	2032	#if EV_MULTIPLICITY
1458	EV_P = signals [signum - 1].loop;	2033	EV_P = signals [signum - 1].loop;
1459		2034
1460	if (!EV_A)	2035	if (!EV_A)
…		…
1474		2049
1475	ev_feed_signal (signum);	2050	ev_feed_signal (signum);
1476	}	2051	}
1477		2052
1478	void noinline	2053	void noinline
1479	ev_feed_signal_event (EV_P_ int signum)	2054	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1480	{	2055	{
1481	WL w;	2056	WL w;
1482		2057
1483	if (expect_false (signum <= 0 || signum > EV_NSIG))	2058	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1484	return;	2059	return;
1485		2060
1486	--signum;	2061	--signum;
1487		2062
1488	#if EV_MULTIPLICITY	2063	#if EV_MULTIPLICITY
…		…
1492	if (expect_false (signals [signum].loop != EV_A))	2067	if (expect_false (signals [signum].loop != EV_A))
1493	return;	2068	return;
1494	#endif	2069	#endif
1495		2070
1496	signals [signum].pending = 0;	2071	signals [signum].pending = 0;
		2072	ECB_MEMORY_FENCE_RELEASE;
1497		2073
1498	for (w = signals [signum].head; w; w = w->next)	2074	for (w = signals [signum].head; w; w = w->next)
1499	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2075	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1500	}	2076	}
1501		2077
…		…
1599	#endif	2175	#endif
1600	#if EV_USE_SELECT	2176	#if EV_USE_SELECT
1601	# include "ev_select.c"	2177	# include "ev_select.c"
1602	#endif	2178	#endif
1603		2179
1604	int	2180	int ecb_cold
1605	ev_version_major (void)	2181	ev_version_major (void) EV_THROW
1606	{	2182	{
1607	return EV_VERSION_MAJOR;	2183	return EV_VERSION_MAJOR;
1608	}	2184	}
1609		2185
1610	int	2186	int ecb_cold
1611	ev_version_minor (void)	2187	ev_version_minor (void) EV_THROW
1612	{	2188	{
1613	return EV_VERSION_MINOR;	2189	return EV_VERSION_MINOR;
1614	}	2190	}
1615		2191
1616	/* return true if we are running with elevated privileges and should ignore env variables */	2192	/* return true if we are running with elevated privileges and should ignore env variables */
1617	int inline_size	2193	int inline_size ecb_cold
1618	enable_secure (void)	2194	enable_secure (void)
1619	{	2195	{
1620	#ifdef _WIN32	2196	#ifdef _WIN32
1621	return 0;	2197	return 0;
1622	#else	2198	#else
1623	return getuid () != geteuid ()	2199	return getuid () != geteuid ()
1624	|| getgid () != getegid ();	2200	|| getgid () != getegid ();
1625	#endif	2201	#endif
1626	}	2202	}
1627		2203
1628	unsigned int	2204	unsigned int ecb_cold
1629	ev_supported_backends (void)	2205	ev_supported_backends (void) EV_THROW
1630	{	2206	{
1631	unsigned int flags = 0;	2207	unsigned int flags = 0;
1632		2208
1633	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2209	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1634	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2210	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1637	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2213	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1638		2214
1639	return flags;	2215	return flags;
1640	}	2216	}
1641		2217
1642	unsigned int	2218	unsigned int ecb_cold
1643	ev_recommended_backends (void)	2219	ev_recommended_backends (void) EV_THROW
1644	{	2220	{
1645	unsigned int flags = ev_supported_backends ();	2221	unsigned int flags = ev_supported_backends ();
1646		2222
1647	#ifndef __NetBSD__	2223	#ifndef __NetBSD__
1648	/* kqueue is borked on everything but netbsd apparently */	2224	/* kqueue is borked on everything but netbsd apparently */
…		…
1659	#endif	2235	#endif
1660		2236
1661	return flags;	2237	return flags;
1662	}	2238	}
1663		2239
1664	unsigned int	2240	unsigned int ecb_cold
1665	ev_embeddable_backends (void)	2241	ev_embeddable_backends (void) EV_THROW
1666	{	2242	{
1667	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2243	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1668		2244
1669	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2245	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1670	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2246	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1672		2248
1673	return flags;	2249	return flags;
1674	}	2250	}
1675		2251
1676	unsigned int	2252	unsigned int
1677	ev_backend (EV_P)	2253	ev_backend (EV_P) EV_THROW
1678	{	2254	{
1679	return backend;	2255	return backend;
1680	}	2256	}
1681		2257
1682	#if EV_FEATURE_API	2258	#if EV_FEATURE_API
1683	unsigned int	2259	unsigned int
1684	ev_iteration (EV_P)	2260	ev_iteration (EV_P) EV_THROW
1685	{	2261	{
1686	return loop_count;	2262	return loop_count;
1687	}	2263	}
1688		2264
1689	unsigned int	2265	unsigned int
1690	ev_depth (EV_P)	2266	ev_depth (EV_P) EV_THROW
1691	{	2267	{
1692	return loop_depth;	2268	return loop_depth;
1693	}	2269	}
1694		2270
1695	void	2271	void
1696	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2272	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1697	{	2273	{
1698	io_blocktime = interval;	2274	io_blocktime = interval;
1699	}	2275	}
1700		2276
1701	void	2277	void
1702	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2278	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1703	{	2279	{
1704	timeout_blocktime = interval;	2280	timeout_blocktime = interval;
1705	}	2281	}
1706		2282
1707	void	2283	void
1708	ev_set_userdata (EV_P_ void *data)	2284	ev_set_userdata (EV_P_ void *data) EV_THROW
1709	{	2285	{
1710	userdata = data;	2286	userdata = data;
1711	}	2287	}
1712		2288
1713	void *	2289	void *
1714	ev_userdata (EV_P)	2290	ev_userdata (EV_P) EV_THROW
1715	{	2291	{
1716	return userdata;	2292	return userdata;
1717	}	2293	}
1718		2294
		2295	void
1719	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2296	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1720	{	2297	{
1721	invoke_cb = invoke_pending_cb;	2298	invoke_cb = invoke_pending_cb;
1722	}	2299	}
1723		2300
		2301	void
1724	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2302	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1725	{	2303	{
1726	release_cb = release;	2304	release_cb = release;
1727	acquire_cb = acquire;	2305	acquire_cb = acquire;
1728	}	2306	}
1729	#endif	2307	#endif
1730		2308
1731	/* initialise a loop structure, must be zero-initialised */	2309	/* initialise a loop structure, must be zero-initialised */
1732	static void noinline	2310	static void noinline ecb_cold
1733	loop_init (EV_P_ unsigned int flags)	2311	loop_init (EV_P_ unsigned int flags) EV_THROW
1734	{	2312	{
1735	if (!backend)	2313	if (!backend)
1736	{	2314	{
1737	origflags = flags;	2315	origflags = flags;
1738		2316
…		…
1765	if (!(flags & EVFLAG_NOENV)	2343	if (!(flags & EVFLAG_NOENV)
1766	&& !enable_secure ()	2344	&& !enable_secure ()
1767	&& getenv ("LIBEV_FLAGS"))	2345	&& getenv ("LIBEV_FLAGS"))
1768	flags = atoi (getenv ("LIBEV_FLAGS"));	2346	flags = atoi (getenv ("LIBEV_FLAGS"));
1769		2347
1770	ev_rt_now = ev_time ();	2348	ev_rt_now = ev_time ();
1771	mn_now = get_clock ();	2349	mn_now = get_clock ();
1772	now_floor = mn_now;	2350	now_floor = mn_now;
1773	rtmn_diff = ev_rt_now - mn_now;	2351	rtmn_diff = ev_rt_now - mn_now;
1774	#if EV_FEATURE_API	2352	#if EV_FEATURE_API
1775	invoke_cb = ev_invoke_pending;	2353	invoke_cb = ev_invoke_pending;
1776	#endif	2354	#endif
1777		2355
1778	io_blocktime = 0.;	2356	io_blocktime = 0.;
1779	timeout_blocktime = 0.;	2357	timeout_blocktime = 0.;
1780	backend = 0;	2358	backend = 0;
1781	backend_fd = -1;	2359	backend_fd = -1;
1782	sig_pending = 0;	2360	sig_pending = 0;
1783	#if EV_ASYNC_ENABLE	2361	#if EV_ASYNC_ENABLE
1784	async_pending = 0;	2362	async_pending = 0;
1785	#endif	2363	#endif
		2364	pipe_write_skipped = 0;
		2365	pipe_write_wanted = 0;
		2366	evpipe [0] = -1;
		2367	evpipe [1] = -1;
1786	#if EV_USE_INOTIFY	2368	#if EV_USE_INOTIFY
1787	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2369	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1788	#endif	2370	#endif
1789	#if EV_USE_SIGNALFD	2371	#if EV_USE_SIGNALFD
1790	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2372	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1791	#endif	2373	#endif
1792		2374
1793	if (!(flags & EVBACKEND_MASK))	2375	if (!(flags & EVBACKEND_MASK))
1794	flags |= ev_recommended_backends ();	2376	flags |= ev_recommended_backends ();
1795		2377
…		…
1820	#endif	2402	#endif
1821	}	2403	}
1822	}	2404	}
1823		2405
1824	/* free up a loop structure */	2406	/* free up a loop structure */
1825	void	2407	void ecb_cold
1826	ev_loop_destroy (EV_P)	2408	ev_loop_destroy (EV_P)
1827	{	2409	{
1828	int i;	2410	int i;
1829		2411
1830	#if EV_MULTIPLICITY	2412	#if EV_MULTIPLICITY
…		…
1841	EV_INVOKE_PENDING;	2423	EV_INVOKE_PENDING;
1842	}	2424	}
1843	#endif	2425	#endif
1844		2426
1845	#if EV_CHILD_ENABLE	2427	#if EV_CHILD_ENABLE
1846	if (ev_is_active (&childev))	2428	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1847	{	2429	{
1848	ev_ref (EV_A); /* child watcher */	2430	ev_ref (EV_A); /* child watcher */
1849	ev_signal_stop (EV_A_ &childev);	2431	ev_signal_stop (EV_A_ &childev);
1850	}	2432	}
1851	#endif	2433	#endif
…		…
1853	if (ev_is_active (&pipe_w))	2435	if (ev_is_active (&pipe_w))
1854	{	2436	{
1855	/*ev_ref (EV_A);*/	2437	/*ev_ref (EV_A);*/
1856	/*ev_io_stop (EV_A_ &pipe_w);*/	2438	/*ev_io_stop (EV_A_ &pipe_w);*/
1857		2439
1858	#if EV_USE_EVENTFD
1859	if (evfd >= 0)
1860	close (evfd);
1861	#endif
1862
1863	if (evpipe [0] >= 0)
1864	{
1865	EV_WIN32_CLOSE_FD (evpipe [0]);	2440	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1866	EV_WIN32_CLOSE_FD (evpipe [1]);	2441	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1867	}
1868	}	2442	}
1869		2443
1870	#if EV_USE_SIGNALFD	2444	#if EV_USE_SIGNALFD
1871	if (ev_is_active (&sigfd_w))	2445	if (ev_is_active (&sigfd_w))
1872	close (sigfd);	2446	close (sigfd);
…		…
1958	#endif	2532	#endif
1959	#if EV_USE_INOTIFY	2533	#if EV_USE_INOTIFY
1960	infy_fork (EV_A);	2534	infy_fork (EV_A);
1961	#endif	2535	#endif
1962		2536
		2537	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1963	if (ev_is_active (&pipe_w))	2538	if (ev_is_active (&pipe_w))
1964	{	2539	{
1965	/* this "locks" the handlers against writing to the pipe */	2540	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1966	/* while we modify the fd vars */
1967	sig_pending = 1;
1968	#if EV_ASYNC_ENABLE
1969	async_pending = 1;
1970	#endif
1971		2541
1972	ev_ref (EV_A);	2542	ev_ref (EV_A);
1973	ev_io_stop (EV_A_ &pipe_w);	2543	ev_io_stop (EV_A_ &pipe_w);
1974		2544
1975	#if EV_USE_EVENTFD
1976	if (evfd >= 0)
1977	close (evfd);
1978	#endif
1979
1980	if (evpipe [0] >= 0)	2545	if (evpipe [0] >= 0)
1981	{
1982	EV_WIN32_CLOSE_FD (evpipe [0]);	2546	EV_WIN32_CLOSE_FD (evpipe [0]);
1983	EV_WIN32_CLOSE_FD (evpipe [1]);
1984	}
1985		2547
1986	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1987	evpipe_init (EV_A);	2548	evpipe_init (EV_A);
1988	/* now iterate over everything, in case we missed something */	2549	/* iterate over everything, in case we missed something before */
1989	pipecb (EV_A_ &pipe_w, EV_READ);	2550	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1990	#endif
1991	}	2551	}
		2552	#endif
1992		2553
1993	postfork = 0;	2554	postfork = 0;
1994	}	2555	}
1995		2556
1996	#if EV_MULTIPLICITY	2557	#if EV_MULTIPLICITY
1997		2558
1998	struct ev_loop *	2559	struct ev_loop * ecb_cold
1999	ev_loop_new (unsigned int flags)	2560	ev_loop_new (unsigned int flags) EV_THROW
2000	{	2561	{
2001	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2562	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2002		2563
2003	memset (EV_A, 0, sizeof (struct ev_loop));	2564	memset (EV_A, 0, sizeof (struct ev_loop));
2004	loop_init (EV_A_ flags);	2565	loop_init (EV_A_ flags);
…		…
2011	}	2572	}
2012		2573
2013	#endif /* multiplicity */	2574	#endif /* multiplicity */
2014		2575
2015	#if EV_VERIFY	2576	#if EV_VERIFY
2016	static void noinline	2577	static void noinline ecb_cold
2017	verify_watcher (EV_P_ W w)	2578	verify_watcher (EV_P_ W w)
2018	{	2579	{
2019	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2580	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2020		2581
2021	if (w->pending)	2582	if (w->pending)
2022	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2583	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2023	}	2584	}
2024		2585
2025	static void noinline	2586	static void noinline ecb_cold
2026	verify_heap (EV_P_ ANHE *heap, int N)	2587	verify_heap (EV_P_ ANHE *heap, int N)
2027	{	2588	{
2028	int i;	2589	int i;
2029		2590
2030	for (i = HEAP0; i < N + HEAP0; ++i)	2591	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2035		2596
2036	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2597	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2037	}	2598	}
2038	}	2599	}
2039		2600
2040	static void noinline	2601	static void noinline ecb_cold
2041	array_verify (EV_P_ W *ws, int cnt)	2602	array_verify (EV_P_ W *ws, int cnt)
2042	{	2603	{
2043	while (cnt--)	2604	while (cnt--)
2044	{	2605	{
2045	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2606	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2047	}	2608	}
2048	}	2609	}
2049	#endif	2610	#endif
2050		2611
2051	#if EV_FEATURE_API	2612	#if EV_FEATURE_API
2052	void	2613	void ecb_cold
2053	ev_verify (EV_P)	2614	ev_verify (EV_P) EV_THROW
2054	{	2615	{
2055	#if EV_VERIFY	2616	#if EV_VERIFY
2056	int i;	2617	int i;
2057	WL w;	2618	WL w, w2;
2058		2619
2059	assert (activecnt >= -1);	2620	assert (activecnt >= -1);
2060		2621
2061	assert (fdchangemax >= fdchangecnt);	2622	assert (fdchangemax >= fdchangecnt);
2062	for (i = 0; i < fdchangecnt; ++i)	2623	for (i = 0; i < fdchangecnt; ++i)
2063	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2624	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2064		2625
2065	assert (anfdmax >= 0);	2626	assert (anfdmax >= 0);
2066	for (i = 0; i < anfdmax; ++i)	2627	for (i = 0; i < anfdmax; ++i)
		2628	{
		2629	int j = 0;
		2630
2067	for (w = anfds [i].head; w; w = w->next)	2631	for (w = w2 = anfds [i].head; w; w = w->next)
2068	{	2632	{
2069	verify_watcher (EV_A_ (W)w);	2633	verify_watcher (EV_A_ (W)w);
		2634
		2635	if (j++ & 1)
		2636	{
		2637	assert (("libev: io watcher list contains a loop", w != w2));
		2638	w2 = w2->next;
		2639	}
		2640
2070	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2641	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2071	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2642	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2072	}	2643	}
		2644	}
2073		2645
2074	assert (timermax >= timercnt);	2646	assert (timermax >= timercnt);
2075	verify_heap (EV_A_ timers, timercnt);	2647	verify_heap (EV_A_ timers, timercnt);
2076		2648
2077	#if EV_PERIODIC_ENABLE	2649	#if EV_PERIODIC_ENABLE
…		…
2123	#endif	2695	#endif
2124	}	2696	}
2125	#endif	2697	#endif
2126		2698
2127	#if EV_MULTIPLICITY	2699	#if EV_MULTIPLICITY
2128	struct ev_loop *	2700	struct ev_loop * ecb_cold
2129	#else	2701	#else
2130	int	2702	int
2131	#endif	2703	#endif
2132	ev_default_loop (unsigned int flags)	2704	ev_default_loop (unsigned int flags) EV_THROW
2133	{	2705	{
2134	if (!ev_default_loop_ptr)	2706	if (!ev_default_loop_ptr)
2135	{	2707	{
2136	#if EV_MULTIPLICITY	2708	#if EV_MULTIPLICITY
2137	EV_P = ev_default_loop_ptr = &default_loop_struct;	2709	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2156		2728
2157	return ev_default_loop_ptr;	2729	return ev_default_loop_ptr;
2158	}	2730	}
2159		2731
2160	void	2732	void
2161	ev_loop_fork (EV_P)	2733	ev_loop_fork (EV_P) EV_THROW
2162	{	2734	{
2163	postfork = 1; /* must be in line with ev_default_fork */	2735	postfork = 1;
2164	}	2736	}
2165		2737
2166	/*****************************************************************************/	2738	/*****************************************************************************/
2167		2739
2168	void	2740	void
…		…
2170	{	2742	{
2171	EV_CB_INVOKE ((W)w, revents);	2743	EV_CB_INVOKE ((W)w, revents);
2172	}	2744	}
2173		2745
2174	unsigned int	2746	unsigned int
2175	ev_pending_count (EV_P)	2747	ev_pending_count (EV_P) EV_THROW
2176	{	2748	{
2177	int pri;	2749	int pri;
2178	unsigned int count = 0;	2750	unsigned int count = 0;
2179		2751
2180	for (pri = NUMPRI; pri--; )	2752	for (pri = NUMPRI; pri--; )
…		…
2184	}	2756	}
2185		2757
2186	void noinline	2758	void noinline
2187	ev_invoke_pending (EV_P)	2759	ev_invoke_pending (EV_P)
2188	{	2760	{
2189	int pri;	2761	pendingpri = NUMPRI;
2190		2762
2191	for (pri = NUMPRI; pri--; )	2763	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2764	{
		2765	--pendingpri;
		2766
2192	while (pendingcnt [pri])	2767	while (pendingcnt [pendingpri])
2193	{	2768	{
2194	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2769	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2195		2770
2196	p->w->pending = 0;	2771	p->w->pending = 0;
2197	EV_CB_INVOKE (p->w, p->events);	2772	EV_CB_INVOKE (p->w, p->events);
2198	EV_FREQUENT_CHECK;	2773	EV_FREQUENT_CHECK;
2199	}	2774	}
		2775	}
2200	}	2776	}
2201		2777
2202	#if EV_IDLE_ENABLE	2778	#if EV_IDLE_ENABLE
2203	/* make idle watchers pending. this handles the "call-idle */	2779	/* make idle watchers pending. this handles the "call-idle */
2204	/* only when higher priorities are idle" logic */	2780	/* only when higher priorities are idle" logic */
…		…
2294	{	2870	{
2295	EV_FREQUENT_CHECK;	2871	EV_FREQUENT_CHECK;
2296		2872
2297	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	2873	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2298	{	2874	{
2299	int feed_count = 0;
2300
2301	do	2875	do
2302	{	2876	{
2303	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	2877	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2304		2878
2305	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	2879	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2332	}	2906	}
2333	}	2907	}
2334		2908
2335	/* simply recalculate all periodics */	2909	/* simply recalculate all periodics */
2336	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2910	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2337	static void noinline	2911	static void noinline ecb_cold
2338	periodics_reschedule (EV_P)	2912	periodics_reschedule (EV_P)
2339	{	2913	{
2340	int i;	2914	int i;
2341		2915
2342	/* adjust periodics after time jump */	2916	/* adjust periodics after time jump */
…		…
2355	reheap (periodics, periodiccnt);	2929	reheap (periodics, periodiccnt);
2356	}	2930	}
2357	#endif	2931	#endif
2358		2932
2359	/* adjust all timers by a given offset */	2933	/* adjust all timers by a given offset */
2360	static void noinline	2934	static void noinline ecb_cold
2361	timers_reschedule (EV_P_ ev_tstamp adjust)	2935	timers_reschedule (EV_P_ ev_tstamp adjust)
2362	{	2936	{
2363	int i;	2937	int i;
2364		2938
2365	for (i = 0; i < timercnt; ++i)	2939	for (i = 0; i < timercnt; ++i)
…		…
2439		3013
2440	mn_now = ev_rt_now;	3014	mn_now = ev_rt_now;
2441	}	3015	}
2442	}	3016	}
2443		3017
2444	void	3018	int
2445	ev_run (EV_P_ int flags)	3019	ev_run (EV_P_ int flags)
2446	{	3020	{
2447	#if EV_FEATURE_API	3021	#if EV_FEATURE_API
2448	++loop_depth;	3022	++loop_depth;
2449	#endif	3023	#endif
…		…
2507	ev_tstamp prev_mn_now = mn_now;	3081	ev_tstamp prev_mn_now = mn_now;
2508		3082
2509	/* update time to cancel out callback processing overhead */	3083	/* update time to cancel out callback processing overhead */
2510	time_update (EV_A_ 1e100);	3084	time_update (EV_A_ 1e100);
2511		3085
		3086	/* from now on, we want a pipe-wake-up */
		3087	pipe_write_wanted = 1;
		3088
		3089	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3090
2512	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))	3091	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2513	{	3092	{
2514	waittime = MAX_BLOCKTIME;	3093	waittime = MAX_BLOCKTIME;
2515		3094
2516	if (timercnt)	3095	if (timercnt)
2517	{	3096	{
2518	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;	3097	ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2519	if (waittime > to) waittime = to;	3098	if (waittime > to) waittime = to;
2520	}	3099	}
2521		3100
2522	#if EV_PERIODIC_ENABLE	3101	#if EV_PERIODIC_ENABLE
2523	if (periodiccnt)	3102	if (periodiccnt)
2524	{	3103	{
2525	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;	3104	ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2526	if (waittime > to) waittime = to;	3105	if (waittime > to) waittime = to;
2527	}	3106	}
2528	#endif	3107	#endif
2529		3108
2530	/* don't let timeouts decrease the waittime below timeout_blocktime */	3109	/* don't let timeouts decrease the waittime below timeout_blocktime */
2531	if (expect_false (waittime < timeout_blocktime))	3110	if (expect_false (waittime < timeout_blocktime))
2532	waittime = timeout_blocktime;	3111	waittime = timeout_blocktime;
		3112
		3113	/* at this point, we NEED to wait, so we have to ensure */
		3114	/* to pass a minimum nonzero value to the backend */
		3115	if (expect_false (waittime < backend_mintime))
		3116	waittime = backend_mintime;
2533		3117
2534	/* extra check because io_blocktime is commonly 0 */	3118	/* extra check because io_blocktime is commonly 0 */
2535	if (expect_false (io_blocktime))	3119	if (expect_false (io_blocktime))
2536	{	3120	{
2537	sleeptime = io_blocktime - (mn_now - prev_mn_now);	3121	sleeptime = io_blocktime - (mn_now - prev_mn_now);
2538		3122
2539	if (sleeptime > waittime - backend_fudge)	3123	if (sleeptime > waittime - backend_mintime)
2540	sleeptime = waittime - backend_fudge;	3124	sleeptime = waittime - backend_mintime;
2541		3125
2542	if (expect_true (sleeptime > 0.))	3126	if (expect_true (sleeptime > 0.))
2543	{	3127	{
2544	ev_sleep (sleeptime);	3128	ev_sleep (sleeptime);
2545	waittime -= sleeptime;	3129	waittime -= sleeptime;
…		…
2552	#endif	3136	#endif
2553	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3137	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2554	backend_poll (EV_A_ waittime);	3138	backend_poll (EV_A_ waittime);
2555	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3139	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2556		3140
		3141	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
		3142
		3143	ECB_MEMORY_FENCE_ACQUIRE;
		3144	if (pipe_write_skipped)
		3145	{
		3146	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		3147	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		3148	}
		3149
		3150
2557	/* update ev_rt_now, do magic */	3151	/* update ev_rt_now, do magic */
2558	time_update (EV_A_ waittime + sleeptime);	3152	time_update (EV_A_ waittime + sleeptime);
2559	}	3153	}
2560		3154
2561	/* queue pending timers and reschedule them */	3155	/* queue pending timers and reschedule them */
…		…
2587	loop_done = EVBREAK_CANCEL;	3181	loop_done = EVBREAK_CANCEL;
2588		3182
2589	#if EV_FEATURE_API	3183	#if EV_FEATURE_API
2590	--loop_depth;	3184	--loop_depth;
2591	#endif	3185	#endif
		3186
		3187	return activecnt;
2592	}	3188	}
2593		3189
2594	void	3190	void
2595	ev_break (EV_P_ int how)	3191	ev_break (EV_P_ int how) EV_THROW
2596	{	3192	{
2597	loop_done = how;	3193	loop_done = how;
2598	}	3194	}
2599		3195
2600	void	3196	void
2601	ev_ref (EV_P)	3197	ev_ref (EV_P) EV_THROW
2602	{	3198	{
2603	++activecnt;	3199	++activecnt;
2604	}	3200	}
2605		3201
2606	void	3202	void
2607	ev_unref (EV_P)	3203	ev_unref (EV_P) EV_THROW
2608	{	3204	{
2609	--activecnt;	3205	--activecnt;
2610	}	3206	}
2611		3207
2612	void	3208	void
2613	ev_now_update (EV_P)	3209	ev_now_update (EV_P) EV_THROW
2614	{	3210	{
2615	time_update (EV_A_ 1e100);	3211	time_update (EV_A_ 1e100);
2616	}	3212	}
2617		3213
2618	void	3214	void
2619	ev_suspend (EV_P)	3215	ev_suspend (EV_P) EV_THROW
2620	{	3216	{
2621	ev_now_update (EV_A);	3217	ev_now_update (EV_A);
2622	}	3218	}
2623		3219
2624	void	3220	void
2625	ev_resume (EV_P)	3221	ev_resume (EV_P) EV_THROW
2626	{	3222	{
2627	ev_tstamp mn_prev = mn_now;	3223	ev_tstamp mn_prev = mn_now;
2628		3224
2629	ev_now_update (EV_A);	3225	ev_now_update (EV_A);
2630	timers_reschedule (EV_A_ mn_now - mn_prev);	3226	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2669	w->pending = 0;	3265	w->pending = 0;
2670	}	3266	}
2671	}	3267	}
2672		3268
2673	int	3269	int
2674	ev_clear_pending (EV_P_ void *w)	3270	ev_clear_pending (EV_P_ void *w) EV_THROW
2675	{	3271	{
2676	W w_ = (W)w;	3272	W w_ = (W)w;
2677	int pending = w_->pending;	3273	int pending = w_->pending;
2678		3274
2679	if (expect_true (pending))	3275	if (expect_true (pending))
…		…
2712	}	3308	}
2713		3309
2714	/*****************************************************************************/	3310	/*****************************************************************************/
2715		3311
2716	void noinline	3312	void noinline
2717	ev_io_start (EV_P_ ev_io *w)	3313	ev_io_start (EV_P_ ev_io *w) EV_THROW
2718	{	3314	{
2719	int fd = w->fd;	3315	int fd = w->fd;
2720		3316
2721	if (expect_false (ev_is_active (w)))	3317	if (expect_false (ev_is_active (w)))
2722	return;	3318	return;
…		…
2728		3324
2729	ev_start (EV_A_ (W)w, 1);	3325	ev_start (EV_A_ (W)w, 1);
2730	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3326	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2731	wlist_add (&anfds[fd].head, (WL)w);	3327	wlist_add (&anfds[fd].head, (WL)w);
2732		3328
		3329	/* common bug, apparently */
		3330	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3331
2733	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3332	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2734	w->events &= ~EV__IOFDSET;	3333	w->events &= ~EV__IOFDSET;
2735		3334
2736	EV_FREQUENT_CHECK;	3335	EV_FREQUENT_CHECK;
2737	}	3336	}
2738		3337
2739	void noinline	3338	void noinline
2740	ev_io_stop (EV_P_ ev_io *w)	3339	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2741	{	3340	{
2742	clear_pending (EV_A_ (W)w);	3341	clear_pending (EV_A_ (W)w);
2743	if (expect_false (!ev_is_active (w)))	3342	if (expect_false (!ev_is_active (w)))
2744	return;	3343	return;
2745		3344
…		…
2754		3353
2755	EV_FREQUENT_CHECK;	3354	EV_FREQUENT_CHECK;
2756	}	3355	}
2757		3356
2758	void noinline	3357	void noinline
2759	ev_timer_start (EV_P_ ev_timer *w)	3358	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2760	{	3359	{
2761	if (expect_false (ev_is_active (w)))	3360	if (expect_false (ev_is_active (w)))
2762	return;	3361	return;
2763		3362
2764	ev_at (w) += mn_now;	3363	ev_at (w) += mn_now;
…		…
2778		3377
2779	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3378	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2780	}	3379	}
2781		3380
2782	void noinline	3381	void noinline
2783	ev_timer_stop (EV_P_ ev_timer *w)	3382	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2784	{	3383	{
2785	clear_pending (EV_A_ (W)w);	3384	clear_pending (EV_A_ (W)w);
2786	if (expect_false (!ev_is_active (w)))	3385	if (expect_false (!ev_is_active (w)))
2787	return;	3386	return;
2788		3387
…		…
2808		3407
2809	EV_FREQUENT_CHECK;	3408	EV_FREQUENT_CHECK;
2810	}	3409	}
2811		3410
2812	void noinline	3411	void noinline
2813	ev_timer_again (EV_P_ ev_timer *w)	3412	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2814	{	3413	{
2815	EV_FREQUENT_CHECK;	3414	EV_FREQUENT_CHECK;
		3415
		3416	clear_pending (EV_A_ (W)w);
2816		3417
2817	if (ev_is_active (w))	3418	if (ev_is_active (w))
2818	{	3419	{
2819	if (w->repeat)	3420	if (w->repeat)
2820	{	3421	{
…		…
2833		3434
2834	EV_FREQUENT_CHECK;	3435	EV_FREQUENT_CHECK;
2835	}	3436	}
2836		3437
2837	ev_tstamp	3438	ev_tstamp
2838	ev_timer_remaining (EV_P_ ev_timer *w)	3439	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2839	{	3440	{
2840	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3441	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2841	}	3442	}
2842		3443
2843	#if EV_PERIODIC_ENABLE	3444	#if EV_PERIODIC_ENABLE
2844	void noinline	3445	void noinline
2845	ev_periodic_start (EV_P_ ev_periodic *w)	3446	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2846	{	3447	{
2847	if (expect_false (ev_is_active (w)))	3448	if (expect_false (ev_is_active (w)))
2848	return;	3449	return;
2849		3450
2850	if (w->reschedule_cb)	3451	if (w->reschedule_cb)
…		…
2870		3471
2871	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3472	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2872	}	3473	}
2873		3474
2874	void noinline	3475	void noinline
2875	ev_periodic_stop (EV_P_ ev_periodic *w)	3476	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2876	{	3477	{
2877	clear_pending (EV_A_ (W)w);	3478	clear_pending (EV_A_ (W)w);
2878	if (expect_false (!ev_is_active (w)))	3479	if (expect_false (!ev_is_active (w)))
2879	return;	3480	return;
2880		3481
…		…
2898		3499
2899	EV_FREQUENT_CHECK;	3500	EV_FREQUENT_CHECK;
2900	}	3501	}
2901		3502
2902	void noinline	3503	void noinline
2903	ev_periodic_again (EV_P_ ev_periodic *w)	3504	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2904	{	3505	{
2905	/* TODO: use adjustheap and recalculation */	3506	/* TODO: use adjustheap and recalculation */
2906	ev_periodic_stop (EV_A_ w);	3507	ev_periodic_stop (EV_A_ w);
2907	ev_periodic_start (EV_A_ w);	3508	ev_periodic_start (EV_A_ w);
2908	}	3509	}
…		…
2913	#endif	3514	#endif
2914		3515
2915	#if EV_SIGNAL_ENABLE	3516	#if EV_SIGNAL_ENABLE
2916		3517
2917	void noinline	3518	void noinline
2918	ev_signal_start (EV_P_ ev_signal *w)	3519	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2919	{	3520	{
2920	if (expect_false (ev_is_active (w)))	3521	if (expect_false (ev_is_active (w)))
2921	return;	3522	return;
2922		3523
2923	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3524	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
2994		3595
2995	EV_FREQUENT_CHECK;	3596	EV_FREQUENT_CHECK;
2996	}	3597	}
2997		3598
2998	void noinline	3599	void noinline
2999	ev_signal_stop (EV_P_ ev_signal *w)	3600	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3000	{	3601	{
3001	clear_pending (EV_A_ (W)w);	3602	clear_pending (EV_A_ (W)w);
3002	if (expect_false (!ev_is_active (w)))	3603	if (expect_false (!ev_is_active (w)))
3003	return;	3604	return;
3004		3605
…		…
3035	#endif	3636	#endif
3036		3637
3037	#if EV_CHILD_ENABLE	3638	#if EV_CHILD_ENABLE
3038		3639
3039	void	3640	void
3040	ev_child_start (EV_P_ ev_child *w)	3641	ev_child_start (EV_P_ ev_child *w) EV_THROW
3041	{	3642	{
3042	#if EV_MULTIPLICITY	3643	#if EV_MULTIPLICITY
3043	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3644	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3044	#endif	3645	#endif
3045	if (expect_false (ev_is_active (w)))	3646	if (expect_false (ev_is_active (w)))
…		…
3052		3653
3053	EV_FREQUENT_CHECK;	3654	EV_FREQUENT_CHECK;
3054	}	3655	}
3055		3656
3056	void	3657	void
3057	ev_child_stop (EV_P_ ev_child *w)	3658	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3058	{	3659	{
3059	clear_pending (EV_A_ (W)w);	3660	clear_pending (EV_A_ (W)w);
3060	if (expect_false (!ev_is_active (w)))	3661	if (expect_false (!ev_is_active (w)))
3061	return;	3662	return;
3062		3663
…		…
3214	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3815	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3215	ofs += sizeof (struct inotify_event) + ev->len;	3816	ofs += sizeof (struct inotify_event) + ev->len;
3216	}	3817	}
3217	}	3818	}
3218		3819
3219	inline_size void	3820	inline_size void ecb_cold
3220	ev_check_2625 (EV_P)	3821	ev_check_2625 (EV_P)
3221	{	3822	{
3222	/* kernels < 2.6.25 are borked	3823	/* kernels < 2.6.25 are borked
3223	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3824	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3224	*/	3825	*/
…		…
3229	}	3830	}
3230		3831
3231	inline_size int	3832	inline_size int
3232	infy_newfd (void)	3833	infy_newfd (void)
3233	{	3834	{
3234	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	3835	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3235	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	3836	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3236	if (fd >= 0)	3837	if (fd >= 0)
3237	return fd;	3838	return fd;
3238	#endif	3839	#endif
3239	return inotify_init ();	3840	return inotify_init ();
…		…
3314	#else	3915	#else
3315	# define EV_LSTAT(p,b) lstat (p, b)	3916	# define EV_LSTAT(p,b) lstat (p, b)
3316	#endif	3917	#endif
3317		3918
3318	void	3919	void
3319	ev_stat_stat (EV_P_ ev_stat *w)	3920	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3320	{	3921	{
3321	if (lstat (w->path, &w->attr) < 0)	3922	if (lstat (w->path, &w->attr) < 0)
3322	w->attr.st_nlink = 0;	3923	w->attr.st_nlink = 0;
3323	else if (!w->attr.st_nlink)	3924	else if (!w->attr.st_nlink)
3324	w->attr.st_nlink = 1;	3925	w->attr.st_nlink = 1;
…		…
3363	ev_feed_event (EV_A_ w, EV_STAT);	3964	ev_feed_event (EV_A_ w, EV_STAT);
3364	}	3965	}
3365	}	3966	}
3366		3967
3367	void	3968	void
3368	ev_stat_start (EV_P_ ev_stat *w)	3969	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3369	{	3970	{
3370	if (expect_false (ev_is_active (w)))	3971	if (expect_false (ev_is_active (w)))
3371	return;	3972	return;
3372		3973
3373	ev_stat_stat (EV_A_ w);	3974	ev_stat_stat (EV_A_ w);
…		…
3394		3995
3395	EV_FREQUENT_CHECK;	3996	EV_FREQUENT_CHECK;
3396	}	3997	}
3397		3998
3398	void	3999	void
3399	ev_stat_stop (EV_P_ ev_stat *w)	4000	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3400	{	4001	{
3401	clear_pending (EV_A_ (W)w);	4002	clear_pending (EV_A_ (W)w);
3402	if (expect_false (!ev_is_active (w)))	4003	if (expect_false (!ev_is_active (w)))
3403	return;	4004	return;
3404		4005
…		…
3420	}	4021	}
3421	#endif	4022	#endif
3422		4023
3423	#if EV_IDLE_ENABLE	4024	#if EV_IDLE_ENABLE
3424	void	4025	void
3425	ev_idle_start (EV_P_ ev_idle *w)	4026	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3426	{	4027	{
3427	if (expect_false (ev_is_active (w)))	4028	if (expect_false (ev_is_active (w)))
3428	return;	4029	return;
3429		4030
3430	pri_adjust (EV_A_ (W)w);	4031	pri_adjust (EV_A_ (W)w);
…		…
3443		4044
3444	EV_FREQUENT_CHECK;	4045	EV_FREQUENT_CHECK;
3445	}	4046	}
3446		4047
3447	void	4048	void
3448	ev_idle_stop (EV_P_ ev_idle *w)	4049	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3449	{	4050	{
3450	clear_pending (EV_A_ (W)w);	4051	clear_pending (EV_A_ (W)w);
3451	if (expect_false (!ev_is_active (w)))	4052	if (expect_false (!ev_is_active (w)))
3452	return;	4053	return;
3453		4054
…		…
3467	}	4068	}
3468	#endif	4069	#endif
3469		4070
3470	#if EV_PREPARE_ENABLE	4071	#if EV_PREPARE_ENABLE
3471	void	4072	void
3472	ev_prepare_start (EV_P_ ev_prepare *w)	4073	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3473	{	4074	{
3474	if (expect_false (ev_is_active (w)))	4075	if (expect_false (ev_is_active (w)))
3475	return;	4076	return;
3476		4077
3477	EV_FREQUENT_CHECK;	4078	EV_FREQUENT_CHECK;
…		…
3482		4083
3483	EV_FREQUENT_CHECK;	4084	EV_FREQUENT_CHECK;
3484	}	4085	}
3485		4086
3486	void	4087	void
3487	ev_prepare_stop (EV_P_ ev_prepare *w)	4088	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3488	{	4089	{
3489	clear_pending (EV_A_ (W)w);	4090	clear_pending (EV_A_ (W)w);
3490	if (expect_false (!ev_is_active (w)))	4091	if (expect_false (!ev_is_active (w)))
3491	return;	4092	return;
3492		4093
…		…
3505	}	4106	}
3506	#endif	4107	#endif
3507		4108
3508	#if EV_CHECK_ENABLE	4109	#if EV_CHECK_ENABLE
3509	void	4110	void
3510	ev_check_start (EV_P_ ev_check *w)	4111	ev_check_start (EV_P_ ev_check *w) EV_THROW
3511	{	4112	{
3512	if (expect_false (ev_is_active (w)))	4113	if (expect_false (ev_is_active (w)))
3513	return;	4114	return;
3514		4115
3515	EV_FREQUENT_CHECK;	4116	EV_FREQUENT_CHECK;
…		…
3520		4121
3521	EV_FREQUENT_CHECK;	4122	EV_FREQUENT_CHECK;
3522	}	4123	}
3523		4124
3524	void	4125	void
3525	ev_check_stop (EV_P_ ev_check *w)	4126	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3526	{	4127	{
3527	clear_pending (EV_A_ (W)w);	4128	clear_pending (EV_A_ (W)w);
3528	if (expect_false (!ev_is_active (w)))	4129	if (expect_false (!ev_is_active (w)))
3529	return;	4130	return;
3530		4131
…		…
3543	}	4144	}
3544	#endif	4145	#endif
3545		4146
3546	#if EV_EMBED_ENABLE	4147	#if EV_EMBED_ENABLE
3547	void noinline	4148	void noinline
3548	ev_embed_sweep (EV_P_ ev_embed *w)	4149	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3549	{	4150	{
3550	ev_run (w->other, EVRUN_NOWAIT);	4151	ev_run (w->other, EVRUN_NOWAIT);
3551	}	4152	}
3552		4153
3553	static void	4154	static void
…		…
3601	ev_idle_stop (EV_A_ idle);	4202	ev_idle_stop (EV_A_ idle);
3602	}	4203	}
3603	#endif	4204	#endif
3604		4205
3605	void	4206	void
3606	ev_embed_start (EV_P_ ev_embed *w)	4207	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3607	{	4208	{
3608	if (expect_false (ev_is_active (w)))	4209	if (expect_false (ev_is_active (w)))
3609	return;	4210	return;
3610		4211
3611	{	4212	{
…		…
3632		4233
3633	EV_FREQUENT_CHECK;	4234	EV_FREQUENT_CHECK;
3634	}	4235	}
3635		4236
3636	void	4237	void
3637	ev_embed_stop (EV_P_ ev_embed *w)	4238	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3638	{	4239	{
3639	clear_pending (EV_A_ (W)w);	4240	clear_pending (EV_A_ (W)w);
3640	if (expect_false (!ev_is_active (w)))	4241	if (expect_false (!ev_is_active (w)))
3641	return;	4242	return;
3642		4243
…		…
3652	}	4253	}
3653	#endif	4254	#endif
3654		4255
3655	#if EV_FORK_ENABLE	4256	#if EV_FORK_ENABLE
3656	void	4257	void
3657	ev_fork_start (EV_P_ ev_fork *w)	4258	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3658	{	4259	{
3659	if (expect_false (ev_is_active (w)))	4260	if (expect_false (ev_is_active (w)))
3660	return;	4261	return;
3661		4262
3662	EV_FREQUENT_CHECK;	4263	EV_FREQUENT_CHECK;
…		…
3667		4268
3668	EV_FREQUENT_CHECK;	4269	EV_FREQUENT_CHECK;
3669	}	4270	}
3670		4271
3671	void	4272	void
3672	ev_fork_stop (EV_P_ ev_fork *w)	4273	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3673	{	4274	{
3674	clear_pending (EV_A_ (W)w);	4275	clear_pending (EV_A_ (W)w);
3675	if (expect_false (!ev_is_active (w)))	4276	if (expect_false (!ev_is_active (w)))
3676	return;	4277	return;
3677		4278
…		…
3690	}	4291	}
3691	#endif	4292	#endif
3692		4293
3693	#if EV_CLEANUP_ENABLE	4294	#if EV_CLEANUP_ENABLE
3694	void	4295	void
3695	ev_cleanup_start (EV_P_ ev_cleanup *w)	4296	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3696	{	4297	{
3697	if (expect_false (ev_is_active (w)))	4298	if (expect_false (ev_is_active (w)))
3698	return;	4299	return;
3699		4300
3700	EV_FREQUENT_CHECK;	4301	EV_FREQUENT_CHECK;
…		…
3707	ev_unref (EV_A);	4308	ev_unref (EV_A);
3708	EV_FREQUENT_CHECK;	4309	EV_FREQUENT_CHECK;
3709	}	4310	}
3710		4311
3711	void	4312	void
3712	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4313	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3713	{	4314	{
3714	clear_pending (EV_A_ (W)w);	4315	clear_pending (EV_A_ (W)w);
3715	if (expect_false (!ev_is_active (w)))	4316	if (expect_false (!ev_is_active (w)))
3716	return;	4317	return;
3717		4318
…		…
3731	}	4332	}
3732	#endif	4333	#endif
3733		4334
3734	#if EV_ASYNC_ENABLE	4335	#if EV_ASYNC_ENABLE
3735	void	4336	void
3736	ev_async_start (EV_P_ ev_async *w)	4337	ev_async_start (EV_P_ ev_async *w) EV_THROW
3737	{	4338	{
3738	if (expect_false (ev_is_active (w)))	4339	if (expect_false (ev_is_active (w)))
3739	return;	4340	return;
3740		4341
3741	w->sent = 0;	4342	w->sent = 0;
…		…
3750		4351
3751	EV_FREQUENT_CHECK;	4352	EV_FREQUENT_CHECK;
3752	}	4353	}
3753		4354
3754	void	4355	void
3755	ev_async_stop (EV_P_ ev_async *w)	4356	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3756	{	4357	{
3757	clear_pending (EV_A_ (W)w);	4358	clear_pending (EV_A_ (W)w);
3758	if (expect_false (!ev_is_active (w)))	4359	if (expect_false (!ev_is_active (w)))
3759	return;	4360	return;
3760		4361
…		…
3771		4372
3772	EV_FREQUENT_CHECK;	4373	EV_FREQUENT_CHECK;
3773	}	4374	}
3774		4375
3775	void	4376	void
3776	ev_async_send (EV_P_ ev_async *w)	4377	ev_async_send (EV_P_ ev_async *w) EV_THROW
3777	{	4378	{
3778	w->sent = 1;	4379	w->sent = 1;
3779	evpipe_write (EV_A_ &async_pending);	4380	evpipe_write (EV_A_ &async_pending);
3780	}	4381	}
3781	#endif	4382	#endif
…		…
3818		4419
3819	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4420	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3820	}	4421	}
3821		4422
3822	void	4423	void
3823	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4424	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3824	{	4425	{
3825	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4426	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3826		4427
3827	if (expect_false (!once))	4428	if (expect_false (!once))
3828	{	4429	{
…		…
3849	}	4450	}
3850		4451
3851	/*****************************************************************************/	4452	/*****************************************************************************/
3852		4453
3853	#if EV_WALK_ENABLE	4454	#if EV_WALK_ENABLE
3854	void	4455	void ecb_cold
3855	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4456	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3856	{	4457	{
3857	int i, j;	4458	int i, j;
3858	ev_watcher_list *wl, *wn;	4459	ev_watcher_list *wl, *wn;
3859		4460
3860	if (types & (EV_IO | EV_EMBED))	4461	if (types & (EV_IO | EV_EMBED))
…		…
3903	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4504	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3904	#endif	4505	#endif
3905		4506
3906	#if EV_IDLE_ENABLE	4507	#if EV_IDLE_ENABLE
3907	if (types & EV_IDLE)	4508	if (types & EV_IDLE)
3908	for (j = NUMPRI; i--; )	4509	for (j = NUMPRI; j--; )
3909	for (i = idlecnt [j]; i--; )	4510	for (i = idlecnt [j]; i--; )
3910	cb (EV_A_ EV_IDLE, idles [j][i]);	4511	cb (EV_A_ EV_IDLE, idles [j][i]);
3911	#endif	4512	#endif
3912		4513
3913	#if EV_FORK_ENABLE	4514	#if EV_FORK_ENABLE
…		…
3966		4567
3967	#if EV_MULTIPLICITY	4568	#if EV_MULTIPLICITY
3968	#include "ev_wrap.h"	4569	#include "ev_wrap.h"
3969	#endif	4570	#endif
3970		4571
3971	EV_CPP(})
3972

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