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Comparing libev/ev.c (file contents):
Revision 1.377 by root, Wed Jun 8 13:11:55 2011 UTC vs.
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 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
…		…
347		357
348	#ifndef EV_HEAP_CACHE_AT	358	#ifndef EV_HEAP_CACHE_AT
349	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	359	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350	#endif	360	#endif
351		361
		362	#ifdef ANDROID
		363	/* supposedly, android doesn't typedef fd_mask */
		364	# undef EV_USE_SELECT
		365	# define EV_USE_SELECT 0
		366	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		367	# undef EV_USE_CLOCK_SYSCALL
		368	# define EV_USE_CLOCK_SYSCALL 0
		369	#endif
		370
		371	/* aix's poll.h seems to cause lots of trouble */
		372	#ifdef _AIX
		373	/* AIX has a completely broken poll.h header */
		374	# undef EV_USE_POLL
		375	# define EV_USE_POLL 0
		376	#endif
		377
352	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	378	/* 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. */	379	/* which makes programs even slower. might work on other unices, too. */
354	#if EV_USE_CLOCK_SYSCALL	380	#if EV_USE_CLOCK_SYSCALL
355	# include <syscall.h>	381	# include <sys/syscall.h>
356	# ifdef SYS_clock_gettime	382	# ifdef SYS_clock_gettime
357	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	383	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358	# undef EV_USE_MONOTONIC	384	# undef EV_USE_MONOTONIC
359	# define EV_USE_MONOTONIC 1	385	# define EV_USE_MONOTONIC 1
360	# else	386	# else
…		…
363	# endif	389	# endif
364	#endif	390	#endif
365		391
366	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	392	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367		393
368	#ifdef _AIX
369	/* AIX has a completely broken poll.h header */
370	# undef EV_USE_POLL
371	# define EV_USE_POLL 0
372	#endif
373
374	#ifndef CLOCK_MONOTONIC	394	#ifndef CLOCK_MONOTONIC
375	# undef EV_USE_MONOTONIC	395	# undef EV_USE_MONOTONIC
376	# define EV_USE_MONOTONIC 0	396	# define EV_USE_MONOTONIC 0
377	#endif	397	#endif
378		398
…		…
386	# define EV_USE_INOTIFY 0	406	# define EV_USE_INOTIFY 0
387	#endif	407	#endif
388		408
389	#if !EV_USE_NANOSLEEP	409	#if !EV_USE_NANOSLEEP
390	/* hp-ux has it in sys/time.h, which we unconditionally include above */	410	/* hp-ux has it in sys/time.h, which we unconditionally include above */
391	# if !defined(_WIN32) && !defined(__hpux)	411	# if !defined _WIN32 && !defined __hpux
392	# include <sys/select.h>	412	# include <sys/select.h>
393	# endif	413	# endif
394	#endif	414	#endif
395		415
396	#if EV_USE_INOTIFY	416	#if EV_USE_INOTIFY
…		…
399	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	419	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400	# ifndef IN_DONT_FOLLOW	420	# ifndef IN_DONT_FOLLOW
401	# undef EV_USE_INOTIFY	421	# undef EV_USE_INOTIFY
402	# define EV_USE_INOTIFY 0	422	# define EV_USE_INOTIFY 0
403	# endif	423	# endif
404	#endif
405
406	#if EV_SELECT_IS_WINSOCKET
407	# include <winsock.h>
408	#endif	424	#endif
409		425
410	#if EV_USE_EVENTFD	426	#if EV_USE_EVENTFD
411	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	427	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412	# include <stdint.h>	428	# include <stdint.h>
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	480	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		481
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	482	#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)	483	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		484
		485	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
		486	/* ECB.H BEGIN */
		487	/*
		488	* libecb - http://software.schmorp.de/pkg/libecb
		489	*
		490	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		491	* Copyright (©) 2011 Emanuele Giaquinta
		492	* All rights reserved.
		493	*
		494	* Redistribution and use in source and binary forms, with or without modifica-
		495	* tion, are permitted provided that the following conditions are met:
		496	*
		497	* 1. Redistributions of source code must retain the above copyright notice,
		498	* this list of conditions and the following disclaimer.
		499	*
		500	* 2. Redistributions in binary form must reproduce the above copyright
		501	* notice, this list of conditions and the following disclaimer in the
		502	* documentation and/or other materials provided with the distribution.
		503	*
		504	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		505	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		506	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		507	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		508	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		509	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		510	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		511	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		512	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		513	* OF THE POSSIBILITY OF SUCH DAMAGE.
		514	*/
		515
		516	#ifndef ECB_H
		517	#define ECB_H
		518
		519	/* 16 bits major, 16 bits minor */
		520	#define ECB_VERSION 0x00010002
		521
		522	#ifdef _WIN32
		523	typedef signed char int8_t;
		524	typedef unsigned char uint8_t;
		525	typedef signed short int16_t;
		526	typedef unsigned short uint16_t;
		527	typedef signed int int32_t;
		528	typedef unsigned int uint32_t;
469	#if __GNUC__ >= 4	529	#if __GNUC__
470	# define expect(expr,value) __builtin_expect ((expr),(value))	530	typedef signed long long int64_t;
471	# define noinline __attribute__ ((noinline))	531	typedef unsigned long long uint64_t;
		532	#else /* _MSC_VER || __BORLANDC__ */
		533	typedef signed __int64 int64_t;
		534	typedef unsigned __int64 uint64_t;
		535	#endif
		536	#ifdef _WIN64
		537	#define ECB_PTRSIZE 8
		538	typedef uint64_t uintptr_t;
		539	typedef int64_t intptr_t;
		540	#else
		541	#define ECB_PTRSIZE 4
		542	typedef uint32_t uintptr_t;
		543	typedef int32_t intptr_t;
		544	#endif
472	#else	545	#else
473	# define expect(expr,value) (expr)	546	#include <inttypes.h>
474	# define noinline	547	#if UINTMAX_MAX > 0xffffffffU
475	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2	548	#define ECB_PTRSIZE 8
476	# define inline	549	#else
		550	#define ECB_PTRSIZE 4
		551	#endif
477	# endif	552	#endif
		553
		554	/* many compilers define _GNUC_ to some versions but then only implement
		555	* what their idiot authors think are the "more important" extensions,
		556	* causing enormous grief in return for some better fake benchmark numbers.
		557	* or so.
		558	* we try to detect these and simply assume they are not gcc - if they have
		559	* an issue with that they should have done it right in the first place.
		560	*/
		561	#ifndef ECB_GCC_VERSION
		562	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
		563	#define ECB_GCC_VERSION(major,minor) 0
		564	#else
		565	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
478	#endif	566	#endif
		567	#endif
479		568
		569	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		570	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		571	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		572	#define ECB_CPP (__cplusplus+0)
		573	#define ECB_CPP11 (__cplusplus >= 201103L)
		574
		575	#if ECB_CPP
		576	#define ECB_EXTERN_C extern "C"
		577	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		578	#define ECB_EXTERN_C_END }
		579	#else
		580	#define ECB_EXTERN_C extern
		581	#define ECB_EXTERN_C_BEG
		582	#define ECB_EXTERN_C_END
		583	#endif
		584
		585	/*****************************************************************************/
		586
		587	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		588	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		589
		590	#if ECB_NO_THREADS
		591	#define ECB_NO_SMP 1
		592	#endif
		593
		594	#if ECB_NO_SMP
		595	#define ECB_MEMORY_FENCE do { } while (0)
		596	#endif
		597
		598	#ifndef ECB_MEMORY_FENCE
		599	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		600	#if __i386 || __i386__
		601	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		602	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		603	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		604	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		605	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		606	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		607	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		608	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		609	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		610	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		611	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		612	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		613	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		614	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		616	#elif __sparc || __sparc__
		617	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		618	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		619	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		620	#elif defined __s390__ || defined __s390x__
		621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		622	#elif defined __mips__
		623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		624	#elif defined __alpha__
		625	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		626	#elif defined __hppa__
		627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		629	#elif defined __ia64__
		630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		631	#endif
		632	#endif
		633	#endif
		634
		635	#ifndef ECB_MEMORY_FENCE
		636	#if ECB_GCC_VERSION(4,7)
		637	/* see comment below (stdatomic.h) about the C11 memory model. */
		638	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		639
		640	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		641	* without risking compile time errors with other compilers. We *could*
		642	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		643	* around this shit time and again.
		644	* #elif defined __clang && __has_feature (cxx_atomic)
		645	* // see comment below (stdatomic.h) about the C11 memory model.
		646	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		647	*/
		648
		649	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		650	#define ECB_MEMORY_FENCE __sync_synchronize ()
		651	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		652	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		653	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		654	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		655	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		656	#elif defined _WIN32
		657	#include <WinNT.h>
		658	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		659	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		660	#include <mbarrier.h>
		661	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		662	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		663	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		664	#elif __xlC__
		665	#define ECB_MEMORY_FENCE __sync ()
		666	#endif
		667	#endif
		668
		669	#ifndef ECB_MEMORY_FENCE
		670	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		671	/* we assume that these memory fences work on all variables/all memory accesses, */
		672	/* not just C11 atomics and atomic accesses */
		673	#include <stdatomic.h>
		674	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		675	/* any fence other than seq_cst, which isn't very efficient for us. */
		676	/* Why that is, we don't know - either the C11 memory model is quite useless */
		677	/* for most usages, or gcc and clang have a bug */
		678	/* I *currently* lean towards the latter, and inefficiently implement */
		679	/* all three of ecb's fences as a seq_cst fence */
		680	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		681	#endif
		682	#endif
		683
		684	#ifndef ECB_MEMORY_FENCE
		685	#if !ECB_AVOID_PTHREADS
		686	/*
		687	* if you get undefined symbol references to pthread_mutex_lock,
		688	* or failure to find pthread.h, then you should implement
		689	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		690	* OR provide pthread.h and link against the posix thread library
		691	* of your system.
		692	*/
		693	#include <pthread.h>
		694	#define ECB_NEEDS_PTHREADS 1
		695	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		696
		697	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		698	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		699	#endif
		700	#endif
		701
		702	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		703	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		704	#endif
		705
		706	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		707	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		708	#endif
		709
		710	/*****************************************************************************/
		711
		712	#if __cplusplus
		713	#define ecb_inline static inline
		714	#elif ECB_GCC_VERSION(2,5)
		715	#define ecb_inline static __inline__
		716	#elif ECB_C99
		717	#define ecb_inline static inline
		718	#else
		719	#define ecb_inline static
		720	#endif
		721
		722	#if ECB_GCC_VERSION(3,3)
		723	#define ecb_restrict __restrict__
		724	#elif ECB_C99
		725	#define ecb_restrict restrict
		726	#else
		727	#define ecb_restrict
		728	#endif
		729
		730	typedef int ecb_bool;
		731
		732	#define ECB_CONCAT_(a, b) a ## b
		733	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		734	#define ECB_STRINGIFY_(a) # a
		735	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		736
		737	#define ecb_function_ ecb_inline
		738
		739	#if ECB_GCC_VERSION(3,1)
		740	#define ecb_attribute(attrlist) __attribute__(attrlist)
		741	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		742	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		743	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		744	#else
		745	#define ecb_attribute(attrlist)
		746	#define ecb_is_constant(expr) 0
		747	#define ecb_expect(expr,value) (expr)
		748	#define ecb_prefetch(addr,rw,locality)
		749	#endif
		750
		751	/* no emulation for ecb_decltype */
		752	#if ECB_GCC_VERSION(4,5)
		753	#define ecb_decltype(x) __decltype(x)
		754	#elif ECB_GCC_VERSION(3,0)
		755	#define ecb_decltype(x) __typeof(x)
		756	#endif
		757
		758	#define ecb_noinline ecb_attribute ((__noinline__))
		759	#define ecb_unused ecb_attribute ((__unused__))
		760	#define ecb_const ecb_attribute ((__const__))
		761	#define ecb_pure ecb_attribute ((__pure__))
		762
		763	#if ECB_C11
		764	#define ecb_noreturn _Noreturn
		765	#else
		766	#define ecb_noreturn ecb_attribute ((__noreturn__))
		767	#endif
		768
		769	#if ECB_GCC_VERSION(4,3)
		770	#define ecb_artificial ecb_attribute ((__artificial__))
		771	#define ecb_hot ecb_attribute ((__hot__))
		772	#define ecb_cold ecb_attribute ((__cold__))
		773	#else
		774	#define ecb_artificial
		775	#define ecb_hot
		776	#define ecb_cold
		777	#endif
		778
		779	/* put around conditional expressions if you are very sure that the */
		780	/* expression is mostly true or mostly false. note that these return */
		781	/* booleans, not the expression. */
480	#define expect_false(expr) expect ((expr) != 0, 0)	782	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481	#define expect_true(expr) expect ((expr) != 0, 1)	783	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		784	/* for compatibility to the rest of the world */
		785	#define ecb_likely(expr) ecb_expect_true (expr)
		786	#define ecb_unlikely(expr) ecb_expect_false (expr)
		787
		788	/* count trailing zero bits and count # of one bits */
		789	#if ECB_GCC_VERSION(3,4)
		790	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		791	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		792	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		793	#define ecb_ctz32(x) __builtin_ctz (x)
		794	#define ecb_ctz64(x) __builtin_ctzll (x)
		795	#define ecb_popcount32(x) __builtin_popcount (x)
		796	/* no popcountll */
		797	#else
		798	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		799	ecb_function_ int
		800	ecb_ctz32 (uint32_t x)
		801	{
		802	int r = 0;
		803
		804	x &= ~x + 1; /* this isolates the lowest bit */
		805
		806	#if ECB_branchless_on_i386
		807	r += !!(x & 0xaaaaaaaa) << 0;
		808	r += !!(x & 0xcccccccc) << 1;
		809	r += !!(x & 0xf0f0f0f0) << 2;
		810	r += !!(x & 0xff00ff00) << 3;
		811	r += !!(x & 0xffff0000) << 4;
		812	#else
		813	if (x & 0xaaaaaaaa) r += 1;
		814	if (x & 0xcccccccc) r += 2;
		815	if (x & 0xf0f0f0f0) r += 4;
		816	if (x & 0xff00ff00) r += 8;
		817	if (x & 0xffff0000) r += 16;
		818	#endif
		819
		820	return r;
		821	}
		822
		823	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		824	ecb_function_ int
		825	ecb_ctz64 (uint64_t x)
		826	{
		827	int shift = x & 0xffffffffU ? 0 : 32;
		828	return ecb_ctz32 (x >> shift) + shift;
		829	}
		830
		831	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		832	ecb_function_ int
		833	ecb_popcount32 (uint32_t x)
		834	{
		835	x -= (x >> 1) & 0x55555555;
		836	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		837	x = ((x >> 4) + x) & 0x0f0f0f0f;
		838	x *= 0x01010101;
		839
		840	return x >> 24;
		841	}
		842
		843	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		844	ecb_function_ int ecb_ld32 (uint32_t x)
		845	{
		846	int r = 0;
		847
		848	if (x >> 16) { x >>= 16; r += 16; }
		849	if (x >> 8) { x >>= 8; r += 8; }
		850	if (x >> 4) { x >>= 4; r += 4; }
		851	if (x >> 2) { x >>= 2; r += 2; }
		852	if (x >> 1) { r += 1; }
		853
		854	return r;
		855	}
		856
		857	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		858	ecb_function_ int ecb_ld64 (uint64_t x)
		859	{
		860	int r = 0;
		861
		862	if (x >> 32) { x >>= 32; r += 32; }
		863
		864	return r + ecb_ld32 (x);
		865	}
		866	#endif
		867
		868	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		869	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		870	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		871	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		872
		873	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		874	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		875	{
		876	return ( (x * 0x0802U & 0x22110U)
		877	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		878	}
		879
		880	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		881	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		882	{
		883	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		884	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		885	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		886	x = ( x >> 8 ) | ( x << 8);
		887
		888	return x;
		889	}
		890
		891	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		892	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		893	{
		894	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		895	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		896	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		897	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		898	x = ( x >> 16 ) | ( x << 16);
		899
		900	return x;
		901	}
		902
		903	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		904	/* so for this version we are lazy */
		905	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		906	ecb_function_ int
		907	ecb_popcount64 (uint64_t x)
		908	{
		909	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		910	}
		911
		912	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		913	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		914	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		915	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		916	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		917	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		918	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		919	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		920
		921	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		922	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		923	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		924	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		925	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		926	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		927	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		928	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		929
		930	#if ECB_GCC_VERSION(4,3)
		931	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		932	#define ecb_bswap32(x) __builtin_bswap32 (x)
		933	#define ecb_bswap64(x) __builtin_bswap64 (x)
		934	#else
		935	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		936	ecb_function_ uint16_t
		937	ecb_bswap16 (uint16_t x)
		938	{
		939	return ecb_rotl16 (x, 8);
		940	}
		941
		942	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		943	ecb_function_ uint32_t
		944	ecb_bswap32 (uint32_t x)
		945	{
		946	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		947	}
		948
		949	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		950	ecb_function_ uint64_t
		951	ecb_bswap64 (uint64_t x)
		952	{
		953	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		954	}
		955	#endif
		956
		957	#if ECB_GCC_VERSION(4,5)
		958	#define ecb_unreachable() __builtin_unreachable ()
		959	#else
		960	/* this seems to work fine, but gcc always emits a warning for it :/ */
		961	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		962	ecb_inline void ecb_unreachable (void) { }
		963	#endif
		964
		965	/* try to tell the compiler that some condition is definitely true */
		966	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
		967
		968	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		969	ecb_inline unsigned char
		970	ecb_byteorder_helper (void)
		971	{
		972	/* the union code still generates code under pressure in gcc, */
		973	/* but less than using pointers, and always seems to */
		974	/* successfully return a constant. */
		975	/* the reason why we have this horrible preprocessor mess */
		976	/* is to avoid it in all cases, at least on common architectures */
		977	/* or when using a recent enough gcc version (>= 4.6) */
		978	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		979	return 0x44;
		980	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		981	return 0x44;
		982	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		983	return 0x11;
		984	#else
		985	union
		986	{
		987	uint32_t i;
		988	uint8_t c;
		989	} u = { 0x11223344 };
		990	return u.c;
		991	#endif
		992	}
		993
		994	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		995	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		996	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		997	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		998
		999	#if ECB_GCC_VERSION(3,0) || ECB_C99
		1000	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		1001	#else
		1002	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		1003	#endif
		1004
		1005	#if __cplusplus
		1006	template<typename T>
		1007	static inline T ecb_div_rd (T val, T div)
		1008	{
		1009	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		1010	}
		1011	template<typename T>
		1012	static inline T ecb_div_ru (T val, T div)
		1013	{
		1014	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		1015	}
		1016	#else
		1017	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		1018	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		1019	#endif
		1020
		1021	#if ecb_cplusplus_does_not_suck
		1022	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		1023	template<typename T, int N>
		1024	static inline int ecb_array_length (const T (&arr)[N])
		1025	{
		1026	return N;
		1027	}
		1028	#else
		1029	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		1030	#endif
		1031
		1032	/*******************************************************************************/
		1033	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1034
		1035	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1036	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1037	#if 0 \
		1038	|| __i386 || __i386__ \
		1039	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1040	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1041	|| defined __arm__ && defined __ARM_EABI__ \
		1042	|| defined __s390__ || defined __s390x__ \
		1043	|| defined __mips__ \
		1044	|| defined __alpha__ \
		1045	|| defined __hppa__ \
		1046	|| defined __ia64__ \
		1047	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1048	#define ECB_STDFP 1
		1049	#include <string.h> /* for memcpy */
		1050	#else
		1051	#define ECB_STDFP 0
		1052	#include <math.h> /* for frexp*, ldexp* */
		1053	#endif
		1054
		1055	#ifndef ECB_NO_LIBM
		1056
		1057	/* convert a float to ieee single/binary32 */
		1058	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1059	ecb_function_ uint32_t
		1060	ecb_float_to_binary32 (float x)
		1061	{
		1062	uint32_t r;
		1063
		1064	#if ECB_STDFP
		1065	memcpy (&r, &x, 4);
		1066	#else
		1067	/* slow emulation, works for anything but -0 */
		1068	uint32_t m;
		1069	int e;
		1070
		1071	if (x == 0e0f ) return 0x00000000U;
		1072	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1073	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1074	if (x != x ) return 0x7fbfffffU;
		1075
		1076	m = frexpf (x, &e) * 0x1000000U;
		1077
		1078	r = m & 0x80000000U;
		1079
		1080	if (r)
		1081	m = -m;
		1082
		1083	if (e <= -126)
		1084	{
		1085	m &= 0xffffffU;
		1086	m >>= (-125 - e);
		1087	e = -126;
		1088	}
		1089
		1090	r |= (e + 126) << 23;
		1091	r |= m & 0x7fffffU;
		1092	#endif
		1093
		1094	return r;
		1095	}
		1096
		1097	/* converts an ieee single/binary32 to a float */
		1098	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1099	ecb_function_ float
		1100	ecb_binary32_to_float (uint32_t x)
		1101	{
		1102	float r;
		1103
		1104	#if ECB_STDFP
		1105	memcpy (&r, &x, 4);
		1106	#else
		1107	/* emulation, only works for normals and subnormals and +0 */
		1108	int neg = x >> 31;
		1109	int e = (x >> 23) & 0xffU;
		1110
		1111	x &= 0x7fffffU;
		1112
		1113	if (e)
		1114	x |= 0x800000U;
		1115	else
		1116	e = 1;
		1117
		1118	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1119	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1120
		1121	r = neg ? -r : r;
		1122	#endif
		1123
		1124	return r;
		1125	}
		1126
		1127	/* convert a double to ieee double/binary64 */
		1128	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1129	ecb_function_ uint64_t
		1130	ecb_double_to_binary64 (double x)
		1131	{
		1132	uint64_t r;
		1133
		1134	#if ECB_STDFP
		1135	memcpy (&r, &x, 8);
		1136	#else
		1137	/* slow emulation, works for anything but -0 */
		1138	uint64_t m;
		1139	int e;
		1140
		1141	if (x == 0e0 ) return 0x0000000000000000U;
		1142	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1143	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1144	if (x != x ) return 0X7ff7ffffffffffffU;
		1145
		1146	m = frexp (x, &e) * 0x20000000000000U;
		1147
		1148	r = m & 0x8000000000000000;;
		1149
		1150	if (r)
		1151	m = -m;
		1152
		1153	if (e <= -1022)
		1154	{
		1155	m &= 0x1fffffffffffffU;
		1156	m >>= (-1021 - e);
		1157	e = -1022;
		1158	}
		1159
		1160	r |= ((uint64_t)(e + 1022)) << 52;
		1161	r |= m & 0xfffffffffffffU;
		1162	#endif
		1163
		1164	return r;
		1165	}
		1166
		1167	/* converts an ieee double/binary64 to a double */
		1168	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1169	ecb_function_ double
		1170	ecb_binary64_to_double (uint64_t x)
		1171	{
		1172	double r;
		1173
		1174	#if ECB_STDFP
		1175	memcpy (&r, &x, 8);
		1176	#else
		1177	/* emulation, only works for normals and subnormals and +0 */
		1178	int neg = x >> 63;
		1179	int e = (x >> 52) & 0x7ffU;
		1180
		1181	x &= 0xfffffffffffffU;
		1182
		1183	if (e)
		1184	x |= 0x10000000000000U;
		1185	else
		1186	e = 1;
		1187
		1188	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1189	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1190
		1191	r = neg ? -r : r;
		1192	#endif
		1193
		1194	return r;
		1195	}
		1196
		1197	#endif
		1198
		1199	#endif
		1200
		1201	/* ECB.H END */
		1202
		1203	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		1204	/* if your architecture doesn't need memory fences, e.g. because it is
		1205	* single-cpu/core, or if you use libev in a project that doesn't use libev
		1206	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		1207	* libev, in which cases the memory fences become nops.
		1208	* alternatively, you can remove this #error and link against libpthread,
		1209	* which will then provide the memory fences.
		1210	*/
		1211	# error "memory fences not defined for your architecture, please report"
		1212	#endif
		1213
		1214	#ifndef ECB_MEMORY_FENCE
		1215	# define ECB_MEMORY_FENCE do { } while (0)
		1216	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		1217	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		1218	#endif
		1219
		1220	#define expect_false(cond) ecb_expect_false (cond)
		1221	#define expect_true(cond) ecb_expect_true (cond)
		1222	#define noinline ecb_noinline
		1223
482	#define inline_size static inline	1224	#define inline_size ecb_inline
483		1225
484	#if EV_FEATURE_CODE	1226	#if EV_FEATURE_CODE
485	# define inline_speed static inline	1227	# define inline_speed ecb_inline
486	#else	1228	#else
487	# define inline_speed static noinline	1229	# define inline_speed static noinline
488	#endif	1230	#endif
489		1231
490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1232	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
581		1323
582	#ifdef __linux	1324	#ifdef __linux
583	# include <sys/utsname.h>	1325	# include <sys/utsname.h>
584	#endif	1326	#endif
585		1327
586	static unsigned int noinline	1328	static unsigned int noinline ecb_cold
587	ev_linux_version (void)	1329	ev_linux_version (void)
588	{	1330	{
589	#ifdef __linux	1331	#ifdef __linux
590	unsigned int v = 0;	1332	unsigned int v = 0;
591	struct utsname buf;	1333	struct utsname buf;
…		…
620	}	1362	}
621		1363
622	/*****************************************************************************/	1364	/*****************************************************************************/
623		1365
624	#if EV_AVOID_STDIO	1366	#if EV_AVOID_STDIO
625	static void noinline	1367	static void noinline ecb_cold
626	ev_printerr (const char *msg)	1368	ev_printerr (const char *msg)
627	{	1369	{
628	write (STDERR_FILENO, msg, strlen (msg));	1370	write (STDERR_FILENO, msg, strlen (msg));
629	}	1371	}
630	#endif	1372	#endif
631		1373
632	static void (*syserr_cb)(const char *msg);	1374	static void (*syserr_cb)(const char *msg) EV_THROW;
633		1375
634	void	1376	void ecb_cold
635	ev_set_syserr_cb (void (*cb)(const char *msg))	1377	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636	{	1378	{
637	syserr_cb = cb;	1379	syserr_cb = cb;
638	}	1380	}
639		1381
640	static void noinline	1382	static void noinline ecb_cold
641	ev_syserr (const char *msg)	1383	ev_syserr (const char *msg)
642	{	1384	{
643	if (!msg)	1385	if (!msg)
644	msg = "(libev) system error";	1386	msg = "(libev) system error";
645		1387
…		…
658	abort ();	1400	abort ();
659	}	1401	}
660	}	1402	}
661		1403
662	static void *	1404	static void *
663	ev_realloc_emul (void *ptr, long size)	1405	ev_realloc_emul (void *ptr, long size) EV_THROW
664	{	1406	{
665	#if __GLIBC__
666	return realloc (ptr, size);
667	#else
668	/* some systems, notably openbsd and darwin, fail to properly	1407	/* some systems, notably openbsd and darwin, fail to properly
669	* implement realloc (x, 0) (as required by both ansi c-89 and	1408	* implement realloc (x, 0) (as required by both ansi c-89 and
670	* the single unix specification, so work around them here.	1409	* the single unix specification, so work around them here.
		1410	* recently, also (at least) fedora and debian started breaking it,
		1411	* despite documenting it otherwise.
671	*/	1412	*/
672		1413
673	if (size)	1414	if (size)
674	return realloc (ptr, size);	1415	return realloc (ptr, size);
675		1416
676	free (ptr);	1417	free (ptr);
677	return 0;	1418	return 0;
678	#endif
679	}	1419	}
680		1420
681	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1421	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682		1422
683	void	1423	void ecb_cold
684	ev_set_allocator (void *(*cb)(void *ptr, long size))	1424	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685	{	1425	{
686	alloc = cb;	1426	alloc = cb;
687	}	1427	}
688		1428
689	inline_speed void *	1429	inline_speed void *
…		…
777	#undef VAR	1517	#undef VAR
778	};	1518	};
779	#include "ev_wrap.h"	1519	#include "ev_wrap.h"
780		1520
781	static struct ev_loop default_loop_struct;	1521	static struct ev_loop default_loop_struct;
782	struct ev_loop *ev_default_loop_ptr;	1522	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783		1523
784	#else	1524	#else
785		1525
786	ev_tstamp ev_rt_now;	1526	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;	1527	#define VAR(name,decl) static decl;
788	#include "ev_vars.h"	1528	#include "ev_vars.h"
789	#undef VAR	1529	#undef VAR
790		1530
791	static int ev_default_loop_ptr;	1531	static int ev_default_loop_ptr;
…		…
806		1546
807	/*****************************************************************************/	1547	/*****************************************************************************/
808		1548
809	#ifndef EV_HAVE_EV_TIME	1549	#ifndef EV_HAVE_EV_TIME
810	ev_tstamp	1550	ev_tstamp
811	ev_time (void)	1551	ev_time (void) EV_THROW
812	{	1552	{
813	#if EV_USE_REALTIME	1553	#if EV_USE_REALTIME
814	if (expect_true (have_realtime))	1554	if (expect_true (have_realtime))
815	{	1555	{
816	struct timespec ts;	1556	struct timespec ts;
…		…
840	return ev_time ();	1580	return ev_time ();
841	}	1581	}
842		1582
843	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
844	ev_tstamp	1584	ev_tstamp
845	ev_now (EV_P)	1585	ev_now (EV_P) EV_THROW
846	{	1586	{
847	return ev_rt_now;	1587	return ev_rt_now;
848	}	1588	}
849	#endif	1589	#endif
850		1590
851	void	1591	void
852	ev_sleep (ev_tstamp delay)	1592	ev_sleep (ev_tstamp delay) EV_THROW
853	{	1593	{
854	if (delay > 0.)	1594	if (delay > 0.)
855	{	1595	{
856	#if EV_USE_NANOSLEEP	1596	#if EV_USE_NANOSLEEP
857	struct timespec ts;	1597	struct timespec ts;
858		1598
859	EV_TS_SET (ts, delay);	1599	EV_TS_SET (ts, delay);
860	nanosleep (&ts, 0);	1600	nanosleep (&ts, 0);
861	#elif defined(_WIN32)	1601	#elif defined _WIN32
862	Sleep ((unsigned long)(delay * 1e3));	1602	Sleep ((unsigned long)(delay * 1e3));
863	#else	1603	#else
864	struct timeval tv;	1604	struct timeval tv;
865		1605
866	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1606	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
885		1625
886	do	1626	do
887	ncur <<= 1;	1627	ncur <<= 1;
888	while (cnt > ncur);	1628	while (cnt > ncur);
889		1629
890	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1630	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1631	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892	{	1632	{
893	ncur *= elem;	1633	ncur *= elem;
894	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1634	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895	ncur = ncur - sizeof (void *) * 4;	1635	ncur = ncur - sizeof (void *) * 4;
…		…
897	}	1637	}
898		1638
899	return ncur;	1639	return ncur;
900	}	1640	}
901		1641
902	static noinline void *	1642	static void * noinline ecb_cold
903	array_realloc (int elem, void *base, int *cur, int cnt)	1643	array_realloc (int elem, void *base, int *cur, int cnt)
904	{	1644	{
905	*cur = array_nextsize (elem, *cur, cnt);	1645	*cur = array_nextsize (elem, *cur, cnt);
906	return ev_realloc (base, elem * *cur);	1646	return ev_realloc (base, elem * *cur);
907	}	1647	}
…		…
910	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1650	memset ((void *)(base), 0, sizeof (*(base)) * (count))
911		1651
912	#define array_needsize(type,base,cur,cnt,init) \	1652	#define array_needsize(type,base,cur,cnt,init) \
913	if (expect_false ((cnt) > (cur))) \	1653	if (expect_false ((cnt) > (cur))) \
914	{ \	1654	{ \
915	int ocur_ = (cur); \	1655	int ecb_unused ocur_ = (cur); \
916	(base) = (type *)array_realloc \	1656	(base) = (type *)array_realloc \
917	(sizeof (type), (base), &(cur), (cnt)); \	1657	(sizeof (type), (base), &(cur), (cnt)); \
918	init ((base) + (ocur_), (cur) - ocur_); \	1658	init ((base) + (ocur_), (cur) - ocur_); \
919	}	1659	}
920		1660
…		…
938	pendingcb (EV_P_ ev_prepare *w, int revents)	1678	pendingcb (EV_P_ ev_prepare *w, int revents)
939	{	1679	{
940	}	1680	}
941		1681
942	void noinline	1682	void noinline
943	ev_feed_event (EV_P_ void *w, int revents)	1683	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944	{	1684	{
945	W w_ = (W)w;	1685	W w_ = (W)w;
946	int pri = ABSPRI (w_);	1686	int pri = ABSPRI (w_);
947		1687
948	if (expect_false (w_->pending))	1688	if (expect_false (w_->pending))
…		…
952	w_->pending = ++pendingcnt [pri];	1692	w_->pending = ++pendingcnt [pri];
953	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1693	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954	pendings [pri][w_->pending - 1].w = w_;	1694	pendings [pri][w_->pending - 1].w = w_;
955	pendings [pri][w_->pending - 1].events = revents;	1695	pendings [pri][w_->pending - 1].events = revents;
956	}	1696	}
		1697
		1698	pendingpri = NUMPRI - 1;
957	}	1699	}
958		1700
959	inline_speed void	1701	inline_speed void
960	feed_reverse (EV_P_ W w)	1702	feed_reverse (EV_P_ W w)
961	{	1703	{
…		…
1007	if (expect_true (!anfd->reify))	1749	if (expect_true (!anfd->reify))
1008	fd_event_nocheck (EV_A_ fd, revents);	1750	fd_event_nocheck (EV_A_ fd, revents);
1009	}	1751	}
1010		1752
1011	void	1753	void
1012	ev_feed_fd_event (EV_P_ int fd, int revents)	1754	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013	{	1755	{
1014	if (fd >= 0 && fd < anfdmax)	1756	if (fd >= 0 && fd < anfdmax)
1015	fd_event_nocheck (EV_A_ fd, revents);	1757	fd_event_nocheck (EV_A_ fd, revents);
1016	}	1758	}
1017		1759
…		…
1090	fdchanges [fdchangecnt - 1] = fd;	1832	fdchanges [fdchangecnt - 1] = fd;
1091	}	1833	}
1092	}	1834	}
1093		1835
1094	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1836	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095	inline_speed void	1837	inline_speed void ecb_cold
1096	fd_kill (EV_P_ int fd)	1838	fd_kill (EV_P_ int fd)
1097	{	1839	{
1098	ev_io *w;	1840	ev_io *w;
1099		1841
1100	while ((w = (ev_io *)anfds [fd].head))	1842	while ((w = (ev_io *)anfds [fd].head))
…		…
1103	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1845	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104	}	1846	}
1105	}	1847	}
1106		1848
1107	/* check whether the given fd is actually valid, for error recovery */	1849	/* check whether the given fd is actually valid, for error recovery */
1108	inline_size int	1850	inline_size int ecb_cold
1109	fd_valid (int fd)	1851	fd_valid (int fd)
1110	{	1852	{
1111	#ifdef _WIN32	1853	#ifdef _WIN32
1112	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1854	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113	#else	1855	#else
1114	return fcntl (fd, F_GETFD) != -1;	1856	return fcntl (fd, F_GETFD) != -1;
1115	#endif	1857	#endif
1116	}	1858	}
1117		1859
1118	/* called on EBADF to verify fds */	1860	/* called on EBADF to verify fds */
1119	static void noinline	1861	static void noinline ecb_cold
1120	fd_ebadf (EV_P)	1862	fd_ebadf (EV_P)
1121	{	1863	{
1122	int fd;	1864	int fd;
1123		1865
1124	for (fd = 0; fd < anfdmax; ++fd)	1866	for (fd = 0; fd < anfdmax; ++fd)
…		…
1126	if (!fd_valid (fd) && errno == EBADF)	1868	if (!fd_valid (fd) && errno == EBADF)
1127	fd_kill (EV_A_ fd);	1869	fd_kill (EV_A_ fd);
1128	}	1870	}
1129		1871
1130	/* called on ENOMEM in select/poll to kill some fds and retry */	1872	/* called on ENOMEM in select/poll to kill some fds and retry */
1131	static void noinline	1873	static void noinline ecb_cold
1132	fd_enomem (EV_P)	1874	fd_enomem (EV_P)
1133	{	1875	{
1134	int fd;	1876	int fd;
1135		1877
1136	for (fd = anfdmax; fd--; )	1878	for (fd = anfdmax; fd--; )
…		…
1331		2073
1332	/*****************************************************************************/	2074	/*****************************************************************************/
1333		2075
1334	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2076	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335		2077
1336	static void noinline	2078	static void noinline ecb_cold
1337	evpipe_init (EV_P)	2079	evpipe_init (EV_P)
1338	{	2080	{
1339	if (!ev_is_active (&pipe_w))	2081	if (!ev_is_active (&pipe_w))
1340	{	2082	{
		2083	int fds [2];
		2084
1341	# if EV_USE_EVENTFD	2085	# if EV_USE_EVENTFD
		2086	fds [0] = -1;
1342	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2087	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1343	if (evfd < 0 && errno == EINVAL)	2088	if (fds [1] < 0 && errno == EINVAL)
1344	evfd = eventfd (0, 0);	2089	fds [1] = eventfd (0, 0);
1345		2090
1346	if (evfd >= 0)	2091	if (fds [1] < 0)
		2092	# endif
1347	{	2093	{
		2094	while (pipe (fds))
		2095	ev_syserr ("(libev) error creating signal/async pipe");
		2096
		2097	fd_intern (fds [0]);
		2098	}
		2099
		2100	fd_intern (fds [1]);
		2101
1348	evpipe [0] = -1;	2102	evpipe [0] = fds [0];
1349	fd_intern (evfd); /* doing it twice doesn't hurt */	2103
1350	ev_io_set (&pipe_w, evfd, EV_READ);	2104	if (evpipe [1] < 0)
		2105	evpipe [1] = fds [1]; /* first call, set write fd */
		2106	else
		2107	{
		2108	/* on subsequent calls, do not change evpipe [1] */
		2109	/* so that evpipe_write can always rely on its value. */
		2110	/* this branch does not do anything sensible on windows, */
		2111	/* so must not be executed on windows */
		2112
		2113	dup2 (fds [1], evpipe [1]);
		2114	close (fds [1]);
		2115	}
		2116
		2117	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2118	ev_io_start (EV_A_ &pipe_w);
		2119	ev_unref (EV_A); /* watcher should not keep loop alive */
		2120	}
		2121	}
		2122
		2123	inline_speed void
		2124	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2125	{
		2126	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2127
		2128	if (expect_true (*flag))
		2129	return;
		2130
		2131	*flag = 1;
		2132	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2133
		2134	pipe_write_skipped = 1;
		2135
		2136	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2137
		2138	if (pipe_write_wanted)
		2139	{
		2140	int old_errno;
		2141
		2142	pipe_write_skipped = 0;
		2143	ECB_MEMORY_FENCE_RELEASE;
		2144
		2145	old_errno = errno; /* save errno because write will clobber it */
		2146
		2147	#if EV_USE_EVENTFD
		2148	if (evpipe [0] < 0)
		2149	{
		2150	uint64_t counter = 1;
		2151	write (evpipe [1], &counter, sizeof (uint64_t));
1351	}	2152	}
1352	else	2153	else
1353	# endif	2154	#endif
1354	{	2155	{
1355	while (pipe (evpipe))	2156	#ifdef _WIN32
1356	ev_syserr ("(libev) error creating signal/async pipe");	2157	WSABUF buf;
1357		2158	DWORD sent;
1358	fd_intern (evpipe [0]);	2159	buf.buf = &buf;
1359	fd_intern (evpipe [1]);	2160	buf.len = 1;
1360	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2161	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		2162	#else
		2163	write (evpipe [1], &(evpipe [1]), 1);
		2164	#endif
1361	}	2165	}
1362
1363	ev_io_start (EV_A_ &pipe_w);
1364	ev_unref (EV_A); /* watcher should not keep loop alive */
1365	}
1366	}
1367
1368	inline_size void
1369	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370	{
1371	if (!*flag)
1372	{
1373	int old_errno = errno; /* save errno because write might clobber it */
1374	char dummy;
1375
1376	*flag = 1;
1377
1378	#if EV_USE_EVENTFD
1379	if (evfd >= 0)
1380	{
1381	uint64_t counter = 1;
1382	write (evfd, &counter, sizeof (uint64_t));
1383	}
1384	else
1385	#endif
1386	/* win32 people keep sending patches that change this write() to send() */
1387	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1388	/* so when you think this write should be a send instead, please find out */
1389	/* where your send() is from - it's definitely not the microsoft send, and */
1390	/* tell me. thank you. */
1391	write (evpipe [1], &dummy, 1);
1392		2166
1393	errno = old_errno;	2167	errno = old_errno;
1394	}	2168	}
1395	}	2169	}
1396		2170
…		…
1399	static void	2173	static void
1400	pipecb (EV_P_ ev_io *iow, int revents)	2174	pipecb (EV_P_ ev_io *iow, int revents)
1401	{	2175	{
1402	int i;	2176	int i;
1403		2177
		2178	if (revents & EV_READ)
		2179	{
1404	#if EV_USE_EVENTFD	2180	#if EV_USE_EVENTFD
1405	if (evfd >= 0)	2181	if (evpipe [0] < 0)
1406	{	2182	{
1407	uint64_t counter;	2183	uint64_t counter;
1408	read (evfd, &counter, sizeof (uint64_t));	2184	read (evpipe [1], &counter, sizeof (uint64_t));
1409	}	2185	}
1410	else	2186	else
1411	#endif	2187	#endif
1412	{	2188	{
1413	char dummy;	2189	char dummy[4];
1414	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2190	#ifdef _WIN32
		2191	WSABUF buf;
		2192	DWORD recvd;
		2193	DWORD flags = 0;
		2194	buf.buf = dummy;
		2195	buf.len = sizeof (dummy);
		2196	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2197	#else
1415	read (evpipe [0], &dummy, 1);	2198	read (evpipe [0], &dummy, sizeof (dummy));
		2199	#endif
		2200	}
1416	}	2201	}
		2202
		2203	pipe_write_skipped = 0;
		2204
		2205	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1417		2206
1418	#if EV_SIGNAL_ENABLE	2207	#if EV_SIGNAL_ENABLE
1419	if (sig_pending)	2208	if (sig_pending)
1420	{	2209	{
1421	sig_pending = 0;	2210	sig_pending = 0;
		2211
		2212	ECB_MEMORY_FENCE;
1422		2213
1423	for (i = EV_NSIG - 1; i--; )	2214	for (i = EV_NSIG - 1; i--; )
1424	if (expect_false (signals [i].pending))	2215	if (expect_false (signals [i].pending))
1425	ev_feed_signal_event (EV_A_ i + 1);	2216	ev_feed_signal_event (EV_A_ i + 1);
1426	}	2217	}
…		…
1428		2219
1429	#if EV_ASYNC_ENABLE	2220	#if EV_ASYNC_ENABLE
1430	if (async_pending)	2221	if (async_pending)
1431	{	2222	{
1432	async_pending = 0;	2223	async_pending = 0;
		2224
		2225	ECB_MEMORY_FENCE;
1433		2226
1434	for (i = asynccnt; i--; )	2227	for (i = asynccnt; i--; )
1435	if (asyncs [i]->sent)	2228	if (asyncs [i]->sent)
1436	{	2229	{
1437	asyncs [i]->sent = 0;	2230	asyncs [i]->sent = 0;
		2231	ECB_MEMORY_FENCE_RELEASE;
1438	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2232	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1439	}	2233	}
1440	}	2234	}
1441	#endif	2235	#endif
1442	}	2236	}
1443		2237
1444	/*****************************************************************************/	2238	/*****************************************************************************/
1445		2239
1446	void	2240	void
1447	ev_feed_signal (int signum)	2241	ev_feed_signal (int signum) EV_THROW
1448	{	2242	{
1449	#if EV_MULTIPLICITY	2243	#if EV_MULTIPLICITY
		2244	ECB_MEMORY_FENCE_ACQUIRE;
1450	EV_P = signals [signum - 1].loop;	2245	EV_P = signals [signum - 1].loop;
1451		2246
1452	if (!EV_A)	2247	if (!EV_A)
1453	return;	2248	return;
1454	#endif	2249	#endif
…		…
1466		2261
1467	ev_feed_signal (signum);	2262	ev_feed_signal (signum);
1468	}	2263	}
1469		2264
1470	void noinline	2265	void noinline
1471	ev_feed_signal_event (EV_P_ int signum)	2266	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1472	{	2267	{
1473	WL w;	2268	WL w;
1474		2269
1475	if (expect_false (signum <= 0 || signum > EV_NSIG))	2270	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1476	return;	2271	return;
1477		2272
1478	--signum;	2273	--signum;
1479		2274
1480	#if EV_MULTIPLICITY	2275	#if EV_MULTIPLICITY
…		…
1484	if (expect_false (signals [signum].loop != EV_A))	2279	if (expect_false (signals [signum].loop != EV_A))
1485	return;	2280	return;
1486	#endif	2281	#endif
1487		2282
1488	signals [signum].pending = 0;	2283	signals [signum].pending = 0;
		2284	ECB_MEMORY_FENCE_RELEASE;
1489		2285
1490	for (w = signals [signum].head; w; w = w->next)	2286	for (w = signals [signum].head; w; w = w->next)
1491	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2287	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1492	}	2288	}
1493		2289
…		…
1591	#endif	2387	#endif
1592	#if EV_USE_SELECT	2388	#if EV_USE_SELECT
1593	# include "ev_select.c"	2389	# include "ev_select.c"
1594	#endif	2390	#endif
1595		2391
1596	int	2392	int ecb_cold
1597	ev_version_major (void)	2393	ev_version_major (void) EV_THROW
1598	{	2394	{
1599	return EV_VERSION_MAJOR;	2395	return EV_VERSION_MAJOR;
1600	}	2396	}
1601		2397
1602	int	2398	int ecb_cold
1603	ev_version_minor (void)	2399	ev_version_minor (void) EV_THROW
1604	{	2400	{
1605	return EV_VERSION_MINOR;	2401	return EV_VERSION_MINOR;
1606	}	2402	}
1607		2403
1608	/* return true if we are running with elevated privileges and should ignore env variables */	2404	/* return true if we are running with elevated privileges and should ignore env variables */
1609	int inline_size	2405	int inline_size ecb_cold
1610	enable_secure (void)	2406	enable_secure (void)
1611	{	2407	{
1612	#ifdef _WIN32	2408	#ifdef _WIN32
1613	return 0;	2409	return 0;
1614	#else	2410	#else
1615	return getuid () != geteuid ()	2411	return getuid () != geteuid ()
1616	|| getgid () != getegid ();	2412	|| getgid () != getegid ();
1617	#endif	2413	#endif
1618	}	2414	}
1619		2415
1620	unsigned int	2416	unsigned int ecb_cold
1621	ev_supported_backends (void)	2417	ev_supported_backends (void) EV_THROW
1622	{	2418	{
1623	unsigned int flags = 0;	2419	unsigned int flags = 0;
1624		2420
1625	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2421	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1626	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2422	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1629	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2425	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1630		2426
1631	return flags;	2427	return flags;
1632	}	2428	}
1633		2429
1634	unsigned int	2430	unsigned int ecb_cold
1635	ev_recommended_backends (void)	2431	ev_recommended_backends (void) EV_THROW
1636	{	2432	{
1637	unsigned int flags = ev_supported_backends ();	2433	unsigned int flags = ev_supported_backends ();
1638		2434
1639	#ifndef __NetBSD__	2435	#ifndef __NetBSD__
1640	/* kqueue is borked on everything but netbsd apparently */	2436	/* kqueue is borked on everything but netbsd apparently */
…		…
1651	#endif	2447	#endif
1652		2448
1653	return flags;	2449	return flags;
1654	}	2450	}
1655		2451
1656	unsigned int	2452	unsigned int ecb_cold
1657	ev_embeddable_backends (void)	2453	ev_embeddable_backends (void) EV_THROW
1658	{	2454	{
1659	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2455	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1660		2456
1661	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2457	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1662	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2458	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1664		2460
1665	return flags;	2461	return flags;
1666	}	2462	}
1667		2463
1668	unsigned int	2464	unsigned int
1669	ev_backend (EV_P)	2465	ev_backend (EV_P) EV_THROW
1670	{	2466	{
1671	return backend;	2467	return backend;
1672	}	2468	}
1673		2469
1674	#if EV_FEATURE_API	2470	#if EV_FEATURE_API
1675	unsigned int	2471	unsigned int
1676	ev_iteration (EV_P)	2472	ev_iteration (EV_P) EV_THROW
1677	{	2473	{
1678	return loop_count;	2474	return loop_count;
1679	}	2475	}
1680		2476
1681	unsigned int	2477	unsigned int
1682	ev_depth (EV_P)	2478	ev_depth (EV_P) EV_THROW
1683	{	2479	{
1684	return loop_depth;	2480	return loop_depth;
1685	}	2481	}
1686		2482
1687	void	2483	void
1688	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2484	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1689	{	2485	{
1690	io_blocktime = interval;	2486	io_blocktime = interval;
1691	}	2487	}
1692		2488
1693	void	2489	void
1694	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2490	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1695	{	2491	{
1696	timeout_blocktime = interval;	2492	timeout_blocktime = interval;
1697	}	2493	}
1698		2494
1699	void	2495	void
1700	ev_set_userdata (EV_P_ void *data)	2496	ev_set_userdata (EV_P_ void *data) EV_THROW
1701	{	2497	{
1702	userdata = data;	2498	userdata = data;
1703	}	2499	}
1704		2500
1705	void *	2501	void *
1706	ev_userdata (EV_P)	2502	ev_userdata (EV_P) EV_THROW
1707	{	2503	{
1708	return userdata;	2504	return userdata;
1709	}	2505	}
1710		2506
		2507	void
1711	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2508	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1712	{	2509	{
1713	invoke_cb = invoke_pending_cb;	2510	invoke_cb = invoke_pending_cb;
1714	}	2511	}
1715		2512
		2513	void
1716	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2514	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1717	{	2515	{
1718	release_cb = release;	2516	release_cb = release;
1719	acquire_cb = acquire;	2517	acquire_cb = acquire;
1720	}	2518	}
1721	#endif	2519	#endif
1722		2520
1723	/* initialise a loop structure, must be zero-initialised */	2521	/* initialise a loop structure, must be zero-initialised */
1724	static void noinline	2522	static void noinline ecb_cold
1725	loop_init (EV_P_ unsigned int flags)	2523	loop_init (EV_P_ unsigned int flags) EV_THROW
1726	{	2524	{
1727	if (!backend)	2525	if (!backend)
1728	{	2526	{
1729	origflags = flags;	2527	origflags = flags;
1730		2528
…		…
1757	if (!(flags & EVFLAG_NOENV)	2555	if (!(flags & EVFLAG_NOENV)
1758	&& !enable_secure ()	2556	&& !enable_secure ()
1759	&& getenv ("LIBEV_FLAGS"))	2557	&& getenv ("LIBEV_FLAGS"))
1760	flags = atoi (getenv ("LIBEV_FLAGS"));	2558	flags = atoi (getenv ("LIBEV_FLAGS"));
1761		2559
1762	ev_rt_now = ev_time ();	2560	ev_rt_now = ev_time ();
1763	mn_now = get_clock ();	2561	mn_now = get_clock ();
1764	now_floor = mn_now;	2562	now_floor = mn_now;
1765	rtmn_diff = ev_rt_now - mn_now;	2563	rtmn_diff = ev_rt_now - mn_now;
1766	#if EV_FEATURE_API	2564	#if EV_FEATURE_API
1767	invoke_cb = ev_invoke_pending;	2565	invoke_cb = ev_invoke_pending;
1768	#endif	2566	#endif
1769		2567
1770	io_blocktime = 0.;	2568	io_blocktime = 0.;
1771	timeout_blocktime = 0.;	2569	timeout_blocktime = 0.;
1772	backend = 0;	2570	backend = 0;
1773	backend_fd = -1;	2571	backend_fd = -1;
1774	sig_pending = 0;	2572	sig_pending = 0;
1775	#if EV_ASYNC_ENABLE	2573	#if EV_ASYNC_ENABLE
1776	async_pending = 0;	2574	async_pending = 0;
1777	#endif	2575	#endif
		2576	pipe_write_skipped = 0;
		2577	pipe_write_wanted = 0;
		2578	evpipe [0] = -1;
		2579	evpipe [1] = -1;
1778	#if EV_USE_INOTIFY	2580	#if EV_USE_INOTIFY
1779	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2581	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1780	#endif	2582	#endif
1781	#if EV_USE_SIGNALFD	2583	#if EV_USE_SIGNALFD
1782	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2584	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1783	#endif	2585	#endif
1784		2586
1785	if (!(flags & EVBACKEND_MASK))	2587	if (!(flags & EVBACKEND_MASK))
1786	flags |= ev_recommended_backends ();	2588	flags |= ev_recommended_backends ();
1787		2589
…		…
1812	#endif	2614	#endif
1813	}	2615	}
1814	}	2616	}
1815		2617
1816	/* free up a loop structure */	2618	/* free up a loop structure */
1817	void	2619	void ecb_cold
1818	ev_loop_destroy (EV_P)	2620	ev_loop_destroy (EV_P)
1819	{	2621	{
1820	int i;	2622	int i;
1821		2623
1822	#if EV_MULTIPLICITY	2624	#if EV_MULTIPLICITY
…		…
1833	EV_INVOKE_PENDING;	2635	EV_INVOKE_PENDING;
1834	}	2636	}
1835	#endif	2637	#endif
1836		2638
1837	#if EV_CHILD_ENABLE	2639	#if EV_CHILD_ENABLE
1838	if (ev_is_active (&childev))	2640	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1839	{	2641	{
1840	ev_ref (EV_A); /* child watcher */	2642	ev_ref (EV_A); /* child watcher */
1841	ev_signal_stop (EV_A_ &childev);	2643	ev_signal_stop (EV_A_ &childev);
1842	}	2644	}
1843	#endif	2645	#endif
…		…
1845	if (ev_is_active (&pipe_w))	2647	if (ev_is_active (&pipe_w))
1846	{	2648	{
1847	/*ev_ref (EV_A);*/	2649	/*ev_ref (EV_A);*/
1848	/*ev_io_stop (EV_A_ &pipe_w);*/	2650	/*ev_io_stop (EV_A_ &pipe_w);*/
1849		2651
1850	#if EV_USE_EVENTFD
1851	if (evfd >= 0)
1852	close (evfd);
1853	#endif
1854
1855	if (evpipe [0] >= 0)
1856	{
1857	EV_WIN32_CLOSE_FD (evpipe [0]);	2652	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1858	EV_WIN32_CLOSE_FD (evpipe [1]);	2653	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1859	}
1860	}	2654	}
1861		2655
1862	#if EV_USE_SIGNALFD	2656	#if EV_USE_SIGNALFD
1863	if (ev_is_active (&sigfd_w))	2657	if (ev_is_active (&sigfd_w))
1864	close (sigfd);	2658	close (sigfd);
…		…
1950	#endif	2744	#endif
1951	#if EV_USE_INOTIFY	2745	#if EV_USE_INOTIFY
1952	infy_fork (EV_A);	2746	infy_fork (EV_A);
1953	#endif	2747	#endif
1954		2748
		2749	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1955	if (ev_is_active (&pipe_w))	2750	if (ev_is_active (&pipe_w))
1956	{	2751	{
1957	/* this "locks" the handlers against writing to the pipe */	2752	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1958	/* while we modify the fd vars */
1959	sig_pending = 1;
1960	#if EV_ASYNC_ENABLE
1961	async_pending = 1;
1962	#endif
1963		2753
1964	ev_ref (EV_A);	2754	ev_ref (EV_A);
1965	ev_io_stop (EV_A_ &pipe_w);	2755	ev_io_stop (EV_A_ &pipe_w);
1966		2756
1967	#if EV_USE_EVENTFD
1968	if (evfd >= 0)
1969	close (evfd);
1970	#endif
1971
1972	if (evpipe [0] >= 0)	2757	if (evpipe [0] >= 0)
1973	{
1974	EV_WIN32_CLOSE_FD (evpipe [0]);	2758	EV_WIN32_CLOSE_FD (evpipe [0]);
1975	EV_WIN32_CLOSE_FD (evpipe [1]);
1976	}
1977		2759
1978	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1979	evpipe_init (EV_A);	2760	evpipe_init (EV_A);
1980	/* now iterate over everything, in case we missed something */	2761	/* iterate over everything, in case we missed something before */
1981	pipecb (EV_A_ &pipe_w, EV_READ);	2762	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1982	#endif
1983	}	2763	}
		2764	#endif
1984		2765
1985	postfork = 0;	2766	postfork = 0;
1986	}	2767	}
1987		2768
1988	#if EV_MULTIPLICITY	2769	#if EV_MULTIPLICITY
1989		2770
1990	struct ev_loop *	2771	struct ev_loop * ecb_cold
1991	ev_loop_new (unsigned int flags)	2772	ev_loop_new (unsigned int flags) EV_THROW
1992	{	2773	{
1993	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2774	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1994		2775
1995	memset (EV_A, 0, sizeof (struct ev_loop));	2776	memset (EV_A, 0, sizeof (struct ev_loop));
1996	loop_init (EV_A_ flags);	2777	loop_init (EV_A_ flags);
…		…
2003	}	2784	}
2004		2785
2005	#endif /* multiplicity */	2786	#endif /* multiplicity */
2006		2787
2007	#if EV_VERIFY	2788	#if EV_VERIFY
2008	static void noinline	2789	static void noinline ecb_cold
2009	verify_watcher (EV_P_ W w)	2790	verify_watcher (EV_P_ W w)
2010	{	2791	{
2011	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2792	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2012		2793
2013	if (w->pending)	2794	if (w->pending)
2014	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2795	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2015	}	2796	}
2016		2797
2017	static void noinline	2798	static void noinline ecb_cold
2018	verify_heap (EV_P_ ANHE *heap, int N)	2799	verify_heap (EV_P_ ANHE *heap, int N)
2019	{	2800	{
2020	int i;	2801	int i;
2021		2802
2022	for (i = HEAP0; i < N + HEAP0; ++i)	2803	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2027		2808
2028	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2809	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2029	}	2810	}
2030	}	2811	}
2031		2812
2032	static void noinline	2813	static void noinline ecb_cold
2033	array_verify (EV_P_ W *ws, int cnt)	2814	array_verify (EV_P_ W *ws, int cnt)
2034	{	2815	{
2035	while (cnt--)	2816	while (cnt--)
2036	{	2817	{
2037	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2818	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2039	}	2820	}
2040	}	2821	}
2041	#endif	2822	#endif
2042		2823
2043	#if EV_FEATURE_API	2824	#if EV_FEATURE_API
2044	void	2825	void ecb_cold
2045	ev_verify (EV_P)	2826	ev_verify (EV_P) EV_THROW
2046	{	2827	{
2047	#if EV_VERIFY	2828	#if EV_VERIFY
2048	int i;	2829	int i;
2049	WL w;	2830	WL w, w2;
2050		2831
2051	assert (activecnt >= -1);	2832	assert (activecnt >= -1);
2052		2833
2053	assert (fdchangemax >= fdchangecnt);	2834	assert (fdchangemax >= fdchangecnt);
2054	for (i = 0; i < fdchangecnt; ++i)	2835	for (i = 0; i < fdchangecnt; ++i)
2055	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2836	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2056		2837
2057	assert (anfdmax >= 0);	2838	assert (anfdmax >= 0);
2058	for (i = 0; i < anfdmax; ++i)	2839	for (i = 0; i < anfdmax; ++i)
		2840	{
		2841	int j = 0;
		2842
2059	for (w = anfds [i].head; w; w = w->next)	2843	for (w = w2 = anfds [i].head; w; w = w->next)
2060	{	2844	{
2061	verify_watcher (EV_A_ (W)w);	2845	verify_watcher (EV_A_ (W)w);
		2846
		2847	if (j++ & 1)
		2848	{
		2849	assert (("libev: io watcher list contains a loop", w != w2));
		2850	w2 = w2->next;
		2851	}
		2852
2062	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2853	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2063	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2854	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2064	}	2855	}
		2856	}
2065		2857
2066	assert (timermax >= timercnt);	2858	assert (timermax >= timercnt);
2067	verify_heap (EV_A_ timers, timercnt);	2859	verify_heap (EV_A_ timers, timercnt);
2068		2860
2069	#if EV_PERIODIC_ENABLE	2861	#if EV_PERIODIC_ENABLE
…		…
2115	#endif	2907	#endif
2116	}	2908	}
2117	#endif	2909	#endif
2118		2910
2119	#if EV_MULTIPLICITY	2911	#if EV_MULTIPLICITY
2120	struct ev_loop *	2912	struct ev_loop * ecb_cold
2121	#else	2913	#else
2122	int	2914	int
2123	#endif	2915	#endif
2124	ev_default_loop (unsigned int flags)	2916	ev_default_loop (unsigned int flags) EV_THROW
2125	{	2917	{
2126	if (!ev_default_loop_ptr)	2918	if (!ev_default_loop_ptr)
2127	{	2919	{
2128	#if EV_MULTIPLICITY	2920	#if EV_MULTIPLICITY
2129	EV_P = ev_default_loop_ptr = &default_loop_struct;	2921	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2148		2940
2149	return ev_default_loop_ptr;	2941	return ev_default_loop_ptr;
2150	}	2942	}
2151		2943
2152	void	2944	void
2153	ev_loop_fork (EV_P)	2945	ev_loop_fork (EV_P) EV_THROW
2154	{	2946	{
2155	postfork = 1; /* must be in line with ev_default_fork */	2947	postfork = 1;
2156	}	2948	}
2157		2949
2158	/*****************************************************************************/	2950	/*****************************************************************************/
2159		2951
2160	void	2952	void
…		…
2162	{	2954	{
2163	EV_CB_INVOKE ((W)w, revents);	2955	EV_CB_INVOKE ((W)w, revents);
2164	}	2956	}
2165		2957
2166	unsigned int	2958	unsigned int
2167	ev_pending_count (EV_P)	2959	ev_pending_count (EV_P) EV_THROW
2168	{	2960	{
2169	int pri;	2961	int pri;
2170	unsigned int count = 0;	2962	unsigned int count = 0;
2171		2963
2172	for (pri = NUMPRI; pri--; )	2964	for (pri = NUMPRI; pri--; )
…		…
2176	}	2968	}
2177		2969
2178	void noinline	2970	void noinline
2179	ev_invoke_pending (EV_P)	2971	ev_invoke_pending (EV_P)
2180	{	2972	{
2181	int pri;	2973	pendingpri = NUMPRI;
2182		2974
2183	for (pri = NUMPRI; pri--; )	2975	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2976	{
		2977	--pendingpri;
		2978
2184	while (pendingcnt [pri])	2979	while (pendingcnt [pendingpri])
2185	{	2980	{
2186	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2981	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2187		2982
2188	p->w->pending = 0;	2983	p->w->pending = 0;
2189	EV_CB_INVOKE (p->w, p->events);	2984	EV_CB_INVOKE (p->w, p->events);
2190	EV_FREQUENT_CHECK;	2985	EV_FREQUENT_CHECK;
2191	}	2986	}
		2987	}
2192	}	2988	}
2193		2989
2194	#if EV_IDLE_ENABLE	2990	#if EV_IDLE_ENABLE
2195	/* make idle watchers pending. this handles the "call-idle */	2991	/* make idle watchers pending. this handles the "call-idle */
2196	/* only when higher priorities are idle" logic */	2992	/* only when higher priorities are idle" logic */
…		…
2286	{	3082	{
2287	EV_FREQUENT_CHECK;	3083	EV_FREQUENT_CHECK;
2288		3084
2289	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3085	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2290	{	3086	{
2291	int feed_count = 0;
2292
2293	do	3087	do
2294	{	3088	{
2295	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3089	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2296		3090
2297	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3091	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2324	}	3118	}
2325	}	3119	}
2326		3120
2327	/* simply recalculate all periodics */	3121	/* simply recalculate all periodics */
2328	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3122	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2329	static void noinline	3123	static void noinline ecb_cold
2330	periodics_reschedule (EV_P)	3124	periodics_reschedule (EV_P)
2331	{	3125	{
2332	int i;	3126	int i;
2333		3127
2334	/* adjust periodics after time jump */	3128	/* adjust periodics after time jump */
…		…
2347	reheap (periodics, periodiccnt);	3141	reheap (periodics, periodiccnt);
2348	}	3142	}
2349	#endif	3143	#endif
2350		3144
2351	/* adjust all timers by a given offset */	3145	/* adjust all timers by a given offset */
2352	static void noinline	3146	static void noinline ecb_cold
2353	timers_reschedule (EV_P_ ev_tstamp adjust)	3147	timers_reschedule (EV_P_ ev_tstamp adjust)
2354	{	3148	{
2355	int i;	3149	int i;
2356		3150
2357	for (i = 0; i < timercnt; ++i)	3151	for (i = 0; i < timercnt; ++i)
…		…
2431		3225
2432	mn_now = ev_rt_now;	3226	mn_now = ev_rt_now;
2433	}	3227	}
2434	}	3228	}
2435		3229
2436	void	3230	int
2437	ev_run (EV_P_ int flags)	3231	ev_run (EV_P_ int flags)
2438	{	3232	{
2439	#if EV_FEATURE_API	3233	#if EV_FEATURE_API
2440	++loop_depth;	3234	++loop_depth;
2441	#endif	3235	#endif
…		…
2499	ev_tstamp prev_mn_now = mn_now;	3293	ev_tstamp prev_mn_now = mn_now;
2500		3294
2501	/* update time to cancel out callback processing overhead */	3295	/* update time to cancel out callback processing overhead */
2502	time_update (EV_A_ 1e100);	3296	time_update (EV_A_ 1e100);
2503		3297
		3298	/* from now on, we want a pipe-wake-up */
		3299	pipe_write_wanted = 1;
		3300
		3301	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3302
2504	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))	3303	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2505	{	3304	{
2506	waittime = MAX_BLOCKTIME;	3305	waittime = MAX_BLOCKTIME;
2507		3306
2508	if (timercnt)	3307	if (timercnt)
2509	{	3308	{
…		…
2549	#endif	3348	#endif
2550	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3349	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2551	backend_poll (EV_A_ waittime);	3350	backend_poll (EV_A_ waittime);
2552	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3351	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2553		3352
		3353	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
		3354
		3355	ECB_MEMORY_FENCE_ACQUIRE;
		3356	if (pipe_write_skipped)
		3357	{
		3358	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		3359	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		3360	}
		3361
		3362
2554	/* update ev_rt_now, do magic */	3363	/* update ev_rt_now, do magic */
2555	time_update (EV_A_ waittime + sleeptime);	3364	time_update (EV_A_ waittime + sleeptime);
2556	}	3365	}
2557		3366
2558	/* queue pending timers and reschedule them */	3367	/* queue pending timers and reschedule them */
…		…
2584	loop_done = EVBREAK_CANCEL;	3393	loop_done = EVBREAK_CANCEL;
2585		3394
2586	#if EV_FEATURE_API	3395	#if EV_FEATURE_API
2587	--loop_depth;	3396	--loop_depth;
2588	#endif	3397	#endif
		3398
		3399	return activecnt;
2589	}	3400	}
2590		3401
2591	void	3402	void
2592	ev_break (EV_P_ int how)	3403	ev_break (EV_P_ int how) EV_THROW
2593	{	3404	{
2594	loop_done = how;	3405	loop_done = how;
2595	}	3406	}
2596		3407
2597	void	3408	void
2598	ev_ref (EV_P)	3409	ev_ref (EV_P) EV_THROW
2599	{	3410	{
2600	++activecnt;	3411	++activecnt;
2601	}	3412	}
2602		3413
2603	void	3414	void
2604	ev_unref (EV_P)	3415	ev_unref (EV_P) EV_THROW
2605	{	3416	{
2606	--activecnt;	3417	--activecnt;
2607	}	3418	}
2608		3419
2609	void	3420	void
2610	ev_now_update (EV_P)	3421	ev_now_update (EV_P) EV_THROW
2611	{	3422	{
2612	time_update (EV_A_ 1e100);	3423	time_update (EV_A_ 1e100);
2613	}	3424	}
2614		3425
2615	void	3426	void
2616	ev_suspend (EV_P)	3427	ev_suspend (EV_P) EV_THROW
2617	{	3428	{
2618	ev_now_update (EV_A);	3429	ev_now_update (EV_A);
2619	}	3430	}
2620		3431
2621	void	3432	void
2622	ev_resume (EV_P)	3433	ev_resume (EV_P) EV_THROW
2623	{	3434	{
2624	ev_tstamp mn_prev = mn_now;	3435	ev_tstamp mn_prev = mn_now;
2625		3436
2626	ev_now_update (EV_A);	3437	ev_now_update (EV_A);
2627	timers_reschedule (EV_A_ mn_now - mn_prev);	3438	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2666	w->pending = 0;	3477	w->pending = 0;
2667	}	3478	}
2668	}	3479	}
2669		3480
2670	int	3481	int
2671	ev_clear_pending (EV_P_ void *w)	3482	ev_clear_pending (EV_P_ void *w) EV_THROW
2672	{	3483	{
2673	W w_ = (W)w;	3484	W w_ = (W)w;
2674	int pending = w_->pending;	3485	int pending = w_->pending;
2675		3486
2676	if (expect_true (pending))	3487	if (expect_true (pending))
…		…
2709	}	3520	}
2710		3521
2711	/*****************************************************************************/	3522	/*****************************************************************************/
2712		3523
2713	void noinline	3524	void noinline
2714	ev_io_start (EV_P_ ev_io *w)	3525	ev_io_start (EV_P_ ev_io *w) EV_THROW
2715	{	3526	{
2716	int fd = w->fd;	3527	int fd = w->fd;
2717		3528
2718	if (expect_false (ev_is_active (w)))	3529	if (expect_false (ev_is_active (w)))
2719	return;	3530	return;
…		…
2725		3536
2726	ev_start (EV_A_ (W)w, 1);	3537	ev_start (EV_A_ (W)w, 1);
2727	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3538	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2728	wlist_add (&anfds[fd].head, (WL)w);	3539	wlist_add (&anfds[fd].head, (WL)w);
2729		3540
		3541	/* common bug, apparently */
		3542	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3543
2730	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3544	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2731	w->events &= ~EV__IOFDSET;	3545	w->events &= ~EV__IOFDSET;
2732		3546
2733	EV_FREQUENT_CHECK;	3547	EV_FREQUENT_CHECK;
2734	}	3548	}
2735		3549
2736	void noinline	3550	void noinline
2737	ev_io_stop (EV_P_ ev_io *w)	3551	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2738	{	3552	{
2739	clear_pending (EV_A_ (W)w);	3553	clear_pending (EV_A_ (W)w);
2740	if (expect_false (!ev_is_active (w)))	3554	if (expect_false (!ev_is_active (w)))
2741	return;	3555	return;
2742		3556
…		…
2751		3565
2752	EV_FREQUENT_CHECK;	3566	EV_FREQUENT_CHECK;
2753	}	3567	}
2754		3568
2755	void noinline	3569	void noinline
2756	ev_timer_start (EV_P_ ev_timer *w)	3570	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2757	{	3571	{
2758	if (expect_false (ev_is_active (w)))	3572	if (expect_false (ev_is_active (w)))
2759	return;	3573	return;
2760		3574
2761	ev_at (w) += mn_now;	3575	ev_at (w) += mn_now;
…		…
2775		3589
2776	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3590	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2777	}	3591	}
2778		3592
2779	void noinline	3593	void noinline
2780	ev_timer_stop (EV_P_ ev_timer *w)	3594	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2781	{	3595	{
2782	clear_pending (EV_A_ (W)w);	3596	clear_pending (EV_A_ (W)w);
2783	if (expect_false (!ev_is_active (w)))	3597	if (expect_false (!ev_is_active (w)))
2784	return;	3598	return;
2785		3599
…		…
2805		3619
2806	EV_FREQUENT_CHECK;	3620	EV_FREQUENT_CHECK;
2807	}	3621	}
2808		3622
2809	void noinline	3623	void noinline
2810	ev_timer_again (EV_P_ ev_timer *w)	3624	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2811	{	3625	{
2812	EV_FREQUENT_CHECK;	3626	EV_FREQUENT_CHECK;
		3627
		3628	clear_pending (EV_A_ (W)w);
2813		3629
2814	if (ev_is_active (w))	3630	if (ev_is_active (w))
2815	{	3631	{
2816	if (w->repeat)	3632	if (w->repeat)
2817	{	3633	{
…		…
2830		3646
2831	EV_FREQUENT_CHECK;	3647	EV_FREQUENT_CHECK;
2832	}	3648	}
2833		3649
2834	ev_tstamp	3650	ev_tstamp
2835	ev_timer_remaining (EV_P_ ev_timer *w)	3651	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2836	{	3652	{
2837	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3653	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2838	}	3654	}
2839		3655
2840	#if EV_PERIODIC_ENABLE	3656	#if EV_PERIODIC_ENABLE
2841	void noinline	3657	void noinline
2842	ev_periodic_start (EV_P_ ev_periodic *w)	3658	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2843	{	3659	{
2844	if (expect_false (ev_is_active (w)))	3660	if (expect_false (ev_is_active (w)))
2845	return;	3661	return;
2846		3662
2847	if (w->reschedule_cb)	3663	if (w->reschedule_cb)
…		…
2867		3683
2868	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3684	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2869	}	3685	}
2870		3686
2871	void noinline	3687	void noinline
2872	ev_periodic_stop (EV_P_ ev_periodic *w)	3688	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2873	{	3689	{
2874	clear_pending (EV_A_ (W)w);	3690	clear_pending (EV_A_ (W)w);
2875	if (expect_false (!ev_is_active (w)))	3691	if (expect_false (!ev_is_active (w)))
2876	return;	3692	return;
2877		3693
…		…
2895		3711
2896	EV_FREQUENT_CHECK;	3712	EV_FREQUENT_CHECK;
2897	}	3713	}
2898		3714
2899	void noinline	3715	void noinline
2900	ev_periodic_again (EV_P_ ev_periodic *w)	3716	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2901	{	3717	{
2902	/* TODO: use adjustheap and recalculation */	3718	/* TODO: use adjustheap and recalculation */
2903	ev_periodic_stop (EV_A_ w);	3719	ev_periodic_stop (EV_A_ w);
2904	ev_periodic_start (EV_A_ w);	3720	ev_periodic_start (EV_A_ w);
2905	}	3721	}
…		…
2910	#endif	3726	#endif
2911		3727
2912	#if EV_SIGNAL_ENABLE	3728	#if EV_SIGNAL_ENABLE
2913		3729
2914	void noinline	3730	void noinline
2915	ev_signal_start (EV_P_ ev_signal *w)	3731	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2916	{	3732	{
2917	if (expect_false (ev_is_active (w)))	3733	if (expect_false (ev_is_active (w)))
2918	return;	3734	return;
2919		3735
2920	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3736	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
2922	#if EV_MULTIPLICITY	3738	#if EV_MULTIPLICITY
2923	assert (("libev: a signal must not be attached to two different loops",	3739	assert (("libev: a signal must not be attached to two different loops",
2924	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3740	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2925		3741
2926	signals [w->signum - 1].loop = EV_A;	3742	signals [w->signum - 1].loop = EV_A;
		3743	ECB_MEMORY_FENCE_RELEASE;
2927	#endif	3744	#endif
2928		3745
2929	EV_FREQUENT_CHECK;	3746	EV_FREQUENT_CHECK;
2930		3747
2931	#if EV_USE_SIGNALFD	3748	#if EV_USE_SIGNALFD
…		…
2991		3808
2992	EV_FREQUENT_CHECK;	3809	EV_FREQUENT_CHECK;
2993	}	3810	}
2994		3811
2995	void noinline	3812	void noinline
2996	ev_signal_stop (EV_P_ ev_signal *w)	3813	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2997	{	3814	{
2998	clear_pending (EV_A_ (W)w);	3815	clear_pending (EV_A_ (W)w);
2999	if (expect_false (!ev_is_active (w)))	3816	if (expect_false (!ev_is_active (w)))
3000	return;	3817	return;
3001		3818
…		…
3032	#endif	3849	#endif
3033		3850
3034	#if EV_CHILD_ENABLE	3851	#if EV_CHILD_ENABLE
3035		3852
3036	void	3853	void
3037	ev_child_start (EV_P_ ev_child *w)	3854	ev_child_start (EV_P_ ev_child *w) EV_THROW
3038	{	3855	{
3039	#if EV_MULTIPLICITY	3856	#if EV_MULTIPLICITY
3040	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3857	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3041	#endif	3858	#endif
3042	if (expect_false (ev_is_active (w)))	3859	if (expect_false (ev_is_active (w)))
…		…
3049		3866
3050	EV_FREQUENT_CHECK;	3867	EV_FREQUENT_CHECK;
3051	}	3868	}
3052		3869
3053	void	3870	void
3054	ev_child_stop (EV_P_ ev_child *w)	3871	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3055	{	3872	{
3056	clear_pending (EV_A_ (W)w);	3873	clear_pending (EV_A_ (W)w);
3057	if (expect_false (!ev_is_active (w)))	3874	if (expect_false (!ev_is_active (w)))
3058	return;	3875	return;
3059		3876
…		…
3086	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3903	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3087		3904
3088	static void noinline	3905	static void noinline
3089	infy_add (EV_P_ ev_stat *w)	3906	infy_add (EV_P_ ev_stat *w)
3090	{	3907	{
3091	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);	3908	w->wd = inotify_add_watch (fs_fd, w->path,
		3909	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3910	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3911	| IN_DONT_FOLLOW | IN_MASK_ADD);
3092		3912
3093	if (w->wd >= 0)	3913	if (w->wd >= 0)
3094	{	3914	{
3095	struct statfs sfs;	3915	struct statfs sfs;
3096		3916
…		…
3100		3920
3101	if (!fs_2625)	3921	if (!fs_2625)
3102	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3922	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3103	else if (!statfs (w->path, &sfs)	3923	else if (!statfs (w->path, &sfs)
3104	&& (sfs.f_type == 0x1373 /* devfs */	3924	&& (sfs.f_type == 0x1373 /* devfs */
		3925	|| sfs.f_type == 0x4006 /* fat */
		3926	|| sfs.f_type == 0x4d44 /* msdos */
3105	|| sfs.f_type == 0xEF53 /* ext2/3 */	3927	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3928	|| sfs.f_type == 0x72b6 /* jffs2 */
		3929	|| sfs.f_type == 0x858458f6 /* ramfs */
		3930	|| sfs.f_type == 0x5346544e /* ntfs */
3106	|| sfs.f_type == 0x3153464a /* jfs */	3931	|| sfs.f_type == 0x3153464a /* jfs */
		3932	|| sfs.f_type == 0x9123683e /* btrfs */
3107	|| sfs.f_type == 0x52654973 /* reiser3 */	3933	|| sfs.f_type == 0x52654973 /* reiser3 */
3108	|| sfs.f_type == 0x01021994 /* tempfs */	3934	|| sfs.f_type == 0x01021994 /* tmpfs */
3109	|| sfs.f_type == 0x58465342 /* xfs */))	3935	|| sfs.f_type == 0x58465342 /* xfs */))
3110	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3936	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3111	else	3937	else
3112	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3938	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3113	}	3939	}
…		…
3211	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4037	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3212	ofs += sizeof (struct inotify_event) + ev->len;	4038	ofs += sizeof (struct inotify_event) + ev->len;
3213	}	4039	}
3214	}	4040	}
3215		4041
3216	inline_size void	4042	inline_size void ecb_cold
3217	ev_check_2625 (EV_P)	4043	ev_check_2625 (EV_P)
3218	{	4044	{
3219	/* kernels < 2.6.25 are borked	4045	/* kernels < 2.6.25 are borked
3220	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4046	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3221	*/	4047	*/
…		…
3226	}	4052	}
3227		4053
3228	inline_size int	4054	inline_size int
3229	infy_newfd (void)	4055	infy_newfd (void)
3230	{	4056	{
3231	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4057	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3232	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4058	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3233	if (fd >= 0)	4059	if (fd >= 0)
3234	return fd;	4060	return fd;
3235	#endif	4061	#endif
3236	return inotify_init ();	4062	return inotify_init ();
…		…
3311	#else	4137	#else
3312	# define EV_LSTAT(p,b) lstat (p, b)	4138	# define EV_LSTAT(p,b) lstat (p, b)
3313	#endif	4139	#endif
3314		4140
3315	void	4141	void
3316	ev_stat_stat (EV_P_ ev_stat *w)	4142	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3317	{	4143	{
3318	if (lstat (w->path, &w->attr) < 0)	4144	if (lstat (w->path, &w->attr) < 0)
3319	w->attr.st_nlink = 0;	4145	w->attr.st_nlink = 0;
3320	else if (!w->attr.st_nlink)	4146	else if (!w->attr.st_nlink)
3321	w->attr.st_nlink = 1;	4147	w->attr.st_nlink = 1;
…		…
3360	ev_feed_event (EV_A_ w, EV_STAT);	4186	ev_feed_event (EV_A_ w, EV_STAT);
3361	}	4187	}
3362	}	4188	}
3363		4189
3364	void	4190	void
3365	ev_stat_start (EV_P_ ev_stat *w)	4191	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3366	{	4192	{
3367	if (expect_false (ev_is_active (w)))	4193	if (expect_false (ev_is_active (w)))
3368	return;	4194	return;
3369		4195
3370	ev_stat_stat (EV_A_ w);	4196	ev_stat_stat (EV_A_ w);
…		…
3391		4217
3392	EV_FREQUENT_CHECK;	4218	EV_FREQUENT_CHECK;
3393	}	4219	}
3394		4220
3395	void	4221	void
3396	ev_stat_stop (EV_P_ ev_stat *w)	4222	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3397	{	4223	{
3398	clear_pending (EV_A_ (W)w);	4224	clear_pending (EV_A_ (W)w);
3399	if (expect_false (!ev_is_active (w)))	4225	if (expect_false (!ev_is_active (w)))
3400	return;	4226	return;
3401		4227
…		…
3417	}	4243	}
3418	#endif	4244	#endif
3419		4245
3420	#if EV_IDLE_ENABLE	4246	#if EV_IDLE_ENABLE
3421	void	4247	void
3422	ev_idle_start (EV_P_ ev_idle *w)	4248	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3423	{	4249	{
3424	if (expect_false (ev_is_active (w)))	4250	if (expect_false (ev_is_active (w)))
3425	return;	4251	return;
3426		4252
3427	pri_adjust (EV_A_ (W)w);	4253	pri_adjust (EV_A_ (W)w);
…		…
3440		4266
3441	EV_FREQUENT_CHECK;	4267	EV_FREQUENT_CHECK;
3442	}	4268	}
3443		4269
3444	void	4270	void
3445	ev_idle_stop (EV_P_ ev_idle *w)	4271	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3446	{	4272	{
3447	clear_pending (EV_A_ (W)w);	4273	clear_pending (EV_A_ (W)w);
3448	if (expect_false (!ev_is_active (w)))	4274	if (expect_false (!ev_is_active (w)))
3449	return;	4275	return;
3450		4276
…		…
3464	}	4290	}
3465	#endif	4291	#endif
3466		4292
3467	#if EV_PREPARE_ENABLE	4293	#if EV_PREPARE_ENABLE
3468	void	4294	void
3469	ev_prepare_start (EV_P_ ev_prepare *w)	4295	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3470	{	4296	{
3471	if (expect_false (ev_is_active (w)))	4297	if (expect_false (ev_is_active (w)))
3472	return;	4298	return;
3473		4299
3474	EV_FREQUENT_CHECK;	4300	EV_FREQUENT_CHECK;
…		…
3479		4305
3480	EV_FREQUENT_CHECK;	4306	EV_FREQUENT_CHECK;
3481	}	4307	}
3482		4308
3483	void	4309	void
3484	ev_prepare_stop (EV_P_ ev_prepare *w)	4310	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3485	{	4311	{
3486	clear_pending (EV_A_ (W)w);	4312	clear_pending (EV_A_ (W)w);
3487	if (expect_false (!ev_is_active (w)))	4313	if (expect_false (!ev_is_active (w)))
3488	return;	4314	return;
3489		4315
…		…
3502	}	4328	}
3503	#endif	4329	#endif
3504		4330
3505	#if EV_CHECK_ENABLE	4331	#if EV_CHECK_ENABLE
3506	void	4332	void
3507	ev_check_start (EV_P_ ev_check *w)	4333	ev_check_start (EV_P_ ev_check *w) EV_THROW
3508	{	4334	{
3509	if (expect_false (ev_is_active (w)))	4335	if (expect_false (ev_is_active (w)))
3510	return;	4336	return;
3511		4337
3512	EV_FREQUENT_CHECK;	4338	EV_FREQUENT_CHECK;
…		…
3517		4343
3518	EV_FREQUENT_CHECK;	4344	EV_FREQUENT_CHECK;
3519	}	4345	}
3520		4346
3521	void	4347	void
3522	ev_check_stop (EV_P_ ev_check *w)	4348	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3523	{	4349	{
3524	clear_pending (EV_A_ (W)w);	4350	clear_pending (EV_A_ (W)w);
3525	if (expect_false (!ev_is_active (w)))	4351	if (expect_false (!ev_is_active (w)))
3526	return;	4352	return;
3527		4353
…		…
3540	}	4366	}
3541	#endif	4367	#endif
3542		4368
3543	#if EV_EMBED_ENABLE	4369	#if EV_EMBED_ENABLE
3544	void noinline	4370	void noinline
3545	ev_embed_sweep (EV_P_ ev_embed *w)	4371	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3546	{	4372	{
3547	ev_run (w->other, EVRUN_NOWAIT);	4373	ev_run (w->other, EVRUN_NOWAIT);
3548	}	4374	}
3549		4375
3550	static void	4376	static void
…		…
3598	ev_idle_stop (EV_A_ idle);	4424	ev_idle_stop (EV_A_ idle);
3599	}	4425	}
3600	#endif	4426	#endif
3601		4427
3602	void	4428	void
3603	ev_embed_start (EV_P_ ev_embed *w)	4429	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3604	{	4430	{
3605	if (expect_false (ev_is_active (w)))	4431	if (expect_false (ev_is_active (w)))
3606	return;	4432	return;
3607		4433
3608	{	4434	{
…		…
3629		4455
3630	EV_FREQUENT_CHECK;	4456	EV_FREQUENT_CHECK;
3631	}	4457	}
3632		4458
3633	void	4459	void
3634	ev_embed_stop (EV_P_ ev_embed *w)	4460	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3635	{	4461	{
3636	clear_pending (EV_A_ (W)w);	4462	clear_pending (EV_A_ (W)w);
3637	if (expect_false (!ev_is_active (w)))	4463	if (expect_false (!ev_is_active (w)))
3638	return;	4464	return;
3639		4465
…		…
3649	}	4475	}
3650	#endif	4476	#endif
3651		4477
3652	#if EV_FORK_ENABLE	4478	#if EV_FORK_ENABLE
3653	void	4479	void
3654	ev_fork_start (EV_P_ ev_fork *w)	4480	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3655	{	4481	{
3656	if (expect_false (ev_is_active (w)))	4482	if (expect_false (ev_is_active (w)))
3657	return;	4483	return;
3658		4484
3659	EV_FREQUENT_CHECK;	4485	EV_FREQUENT_CHECK;
…		…
3664		4490
3665	EV_FREQUENT_CHECK;	4491	EV_FREQUENT_CHECK;
3666	}	4492	}
3667		4493
3668	void	4494	void
3669	ev_fork_stop (EV_P_ ev_fork *w)	4495	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3670	{	4496	{
3671	clear_pending (EV_A_ (W)w);	4497	clear_pending (EV_A_ (W)w);
3672	if (expect_false (!ev_is_active (w)))	4498	if (expect_false (!ev_is_active (w)))
3673	return;	4499	return;
3674		4500
…		…
3687	}	4513	}
3688	#endif	4514	#endif
3689		4515
3690	#if EV_CLEANUP_ENABLE	4516	#if EV_CLEANUP_ENABLE
3691	void	4517	void
3692	ev_cleanup_start (EV_P_ ev_cleanup *w)	4518	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3693	{	4519	{
3694	if (expect_false (ev_is_active (w)))	4520	if (expect_false (ev_is_active (w)))
3695	return;	4521	return;
3696		4522
3697	EV_FREQUENT_CHECK;	4523	EV_FREQUENT_CHECK;
…		…
3704	ev_unref (EV_A);	4530	ev_unref (EV_A);
3705	EV_FREQUENT_CHECK;	4531	EV_FREQUENT_CHECK;
3706	}	4532	}
3707		4533
3708	void	4534	void
3709	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4535	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3710	{	4536	{
3711	clear_pending (EV_A_ (W)w);	4537	clear_pending (EV_A_ (W)w);
3712	if (expect_false (!ev_is_active (w)))	4538	if (expect_false (!ev_is_active (w)))
3713	return;	4539	return;
3714		4540
…		…
3728	}	4554	}
3729	#endif	4555	#endif
3730		4556
3731	#if EV_ASYNC_ENABLE	4557	#if EV_ASYNC_ENABLE
3732	void	4558	void
3733	ev_async_start (EV_P_ ev_async *w)	4559	ev_async_start (EV_P_ ev_async *w) EV_THROW
3734	{	4560	{
3735	if (expect_false (ev_is_active (w)))	4561	if (expect_false (ev_is_active (w)))
3736	return;	4562	return;
3737		4563
3738	w->sent = 0;	4564	w->sent = 0;
…		…
3747		4573
3748	EV_FREQUENT_CHECK;	4574	EV_FREQUENT_CHECK;
3749	}	4575	}
3750		4576
3751	void	4577	void
3752	ev_async_stop (EV_P_ ev_async *w)	4578	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3753	{	4579	{
3754	clear_pending (EV_A_ (W)w);	4580	clear_pending (EV_A_ (W)w);
3755	if (expect_false (!ev_is_active (w)))	4581	if (expect_false (!ev_is_active (w)))
3756	return;	4582	return;
3757		4583
…		…
3768		4594
3769	EV_FREQUENT_CHECK;	4595	EV_FREQUENT_CHECK;
3770	}	4596	}
3771		4597
3772	void	4598	void
3773	ev_async_send (EV_P_ ev_async *w)	4599	ev_async_send (EV_P_ ev_async *w) EV_THROW
3774	{	4600	{
3775	w->sent = 1;	4601	w->sent = 1;
3776	evpipe_write (EV_A_ &async_pending);	4602	evpipe_write (EV_A_ &async_pending);
3777	}	4603	}
3778	#endif	4604	#endif
…		…
3815		4641
3816	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4642	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3817	}	4643	}
3818		4644
3819	void	4645	void
3820	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4646	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3821	{	4647	{
3822	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4648	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3823		4649
3824	if (expect_false (!once))	4650	if (expect_false (!once))
3825	{	4651	{
…		…
3846	}	4672	}
3847		4673
3848	/*****************************************************************************/	4674	/*****************************************************************************/
3849		4675
3850	#if EV_WALK_ENABLE	4676	#if EV_WALK_ENABLE
3851	void	4677	void ecb_cold
3852	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4678	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3853	{	4679	{
3854	int i, j;	4680	int i, j;
3855	ev_watcher_list *wl, *wn;	4681	ev_watcher_list *wl, *wn;
3856		4682
3857	if (types & (EV_IO | EV_EMBED))	4683	if (types & (EV_IO | EV_EMBED))
…		…
3900	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4726	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3901	#endif	4727	#endif
3902		4728
3903	#if EV_IDLE_ENABLE	4729	#if EV_IDLE_ENABLE
3904	if (types & EV_IDLE)	4730	if (types & EV_IDLE)
3905	for (j = NUMPRI; i--; )	4731	for (j = NUMPRI; j--; )
3906	for (i = idlecnt [j]; i--; )	4732	for (i = idlecnt [j]; i--; )
3907	cb (EV_A_ EV_IDLE, idles [j][i]);	4733	cb (EV_A_ EV_IDLE, idles [j][i]);
3908	#endif	4734	#endif
3909		4735
3910	#if EV_FORK_ENABLE	4736	#if EV_FORK_ENABLE
…		…
3963		4789
3964	#if EV_MULTIPLICITY	4790	#if EV_MULTIPLICITY
3965	#include "ev_wrap.h"	4791	#include "ev_wrap.h"
3966	#endif	4792	#endif
3967		4793
3968	EV_CPP(})
3969

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