ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.377 by root, Wed Jun 8 13:11:55 2011 UTC vs.
Revision 1.457 by root, Thu Sep 5 18:45:29 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 0x00010003
		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	/* work around x32 idiocy by defining proper macros */
		555	#if __x86_64 || _M_AMD64
		556	#if __ILP32
		557	#define ECB_AMD64_X32 1
		558	#else
		559	#define ECB_AMD64 1
478	#endif	560	#endif
		561	#endif
479		562
		563	/* many compilers define _GNUC_ to some versions but then only implement
		564	* what their idiot authors think are the "more important" extensions,
		565	* causing enormous grief in return for some better fake benchmark numbers.
		566	* or so.
		567	* we try to detect these and simply assume they are not gcc - if they have
		568	* an issue with that they should have done it right in the first place.
		569	*/
		570	#ifndef ECB_GCC_VERSION
		571	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
		572	#define ECB_GCC_VERSION(major,minor) 0
		573	#else
		574	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
		575	#endif
		576	#endif
		577
		578	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		579	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		580	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		581	#define ECB_CPP (__cplusplus+0)
		582	#define ECB_CPP11 (__cplusplus >= 201103L)
		583
		584	#if ECB_CPP
		585	#define ECB_EXTERN_C extern "C"
		586	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		587	#define ECB_EXTERN_C_END }
		588	#else
		589	#define ECB_EXTERN_C extern
		590	#define ECB_EXTERN_C_BEG
		591	#define ECB_EXTERN_C_END
		592	#endif
		593
		594	/*****************************************************************************/
		595
		596	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		597	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		598
		599	#if ECB_NO_THREADS
		600	#define ECB_NO_SMP 1
		601	#endif
		602
		603	#if ECB_NO_SMP
		604	#define ECB_MEMORY_FENCE do { } while (0)
		605	#endif
		606
		607	#ifndef ECB_MEMORY_FENCE
		608	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		609	#if __i386 || __i386__
		610	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		611	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		612	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		613	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
		614	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		615	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
		616	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		617	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
		618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		619	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
		620	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
		621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		622	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
		623	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
		624	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		625	#elif __sparc || __sparc__
		626	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
		627	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
		628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
		629	#elif defined __s390__ || defined __s390x__
		630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		631	#elif defined __mips__
		632	/* GNU/Linux emulates sync on mips1 architectures, so we force it's use */
		633	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		634	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		635	#elif defined __alpha__
		636	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		637	#elif defined __hppa__
		638	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		639	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		640	#elif defined __ia64__
		641	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		642	#elif defined __m68k__
		643	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		644	#elif defined __m88k__
		645	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		646	#elif defined __sh__
		647	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		648	#endif
		649	#endif
		650	#endif
		651
		652	#ifndef ECB_MEMORY_FENCE
		653	#if ECB_GCC_VERSION(4,7)
		654	/* see comment below (stdatomic.h) about the C11 memory model. */
		655	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		656
		657	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		658	* without risking compile time errors with other compilers. We *could*
		659	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		660	* around this shit time and again.
		661	* #elif defined __clang && __has_feature (cxx_atomic)
		662	* // see comment below (stdatomic.h) about the C11 memory model.
		663	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		664	*/
		665
		666	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
		667	#define ECB_MEMORY_FENCE __sync_synchronize ()
		668	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		669	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		670	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		671	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		672	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		673	#elif defined _WIN32
		674	#include <WinNT.h>
		675	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		676	#elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
		677	#include <mbarrier.h>
		678	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		679	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		680	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		681	#elif __xlC__
		682	#define ECB_MEMORY_FENCE __sync ()
		683	#endif
		684	#endif
		685
		686	#ifndef ECB_MEMORY_FENCE
		687	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		688	/* we assume that these memory fences work on all variables/all memory accesses, */
		689	/* not just C11 atomics and atomic accesses */
		690	#include <stdatomic.h>
		691	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		692	/* any fence other than seq_cst, which isn't very efficient for us. */
		693	/* Why that is, we don't know - either the C11 memory model is quite useless */
		694	/* for most usages, or gcc and clang have a bug */
		695	/* I *currently* lean towards the latter, and inefficiently implement */
		696	/* all three of ecb's fences as a seq_cst fence */
		697	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		698	#endif
		699	#endif
		700
		701	#ifndef ECB_MEMORY_FENCE
		702	#if !ECB_AVOID_PTHREADS
		703	/*
		704	* if you get undefined symbol references to pthread_mutex_lock,
		705	* or failure to find pthread.h, then you should implement
		706	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		707	* OR provide pthread.h and link against the posix thread library
		708	* of your system.
		709	*/
		710	#include <pthread.h>
		711	#define ECB_NEEDS_PTHREADS 1
		712	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		713
		714	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		715	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		716	#endif
		717	#endif
		718
		719	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		720	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		721	#endif
		722
		723	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		724	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		725	#endif
		726
		727	/*****************************************************************************/
		728
		729	#if __cplusplus
		730	#define ecb_inline static inline
		731	#elif ECB_GCC_VERSION(2,5)
		732	#define ecb_inline static __inline__
		733	#elif ECB_C99
		734	#define ecb_inline static inline
		735	#else
		736	#define ecb_inline static
		737	#endif
		738
		739	#if ECB_GCC_VERSION(3,3)
		740	#define ecb_restrict __restrict__
		741	#elif ECB_C99
		742	#define ecb_restrict restrict
		743	#else
		744	#define ecb_restrict
		745	#endif
		746
		747	typedef int ecb_bool;
		748
		749	#define ECB_CONCAT_(a, b) a ## b
		750	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		751	#define ECB_STRINGIFY_(a) # a
		752	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		753
		754	#define ecb_function_ ecb_inline
		755
		756	#if ECB_GCC_VERSION(3,1)
		757	#define ecb_attribute(attrlist) __attribute__(attrlist)
		758	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		759	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		760	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		761	#else
		762	#define ecb_attribute(attrlist)
		763	#define ecb_is_constant(expr) 0
		764	#define ecb_expect(expr,value) (expr)
		765	#define ecb_prefetch(addr,rw,locality)
		766	#endif
		767
		768	/* no emulation for ecb_decltype */
		769	#if ECB_GCC_VERSION(4,5)
		770	#define ecb_decltype(x) __decltype(x)
		771	#elif ECB_GCC_VERSION(3,0)
		772	#define ecb_decltype(x) __typeof(x)
		773	#endif
		774
		775	#define ecb_noinline ecb_attribute ((__noinline__))
		776	#define ecb_unused ecb_attribute ((__unused__))
		777	#define ecb_const ecb_attribute ((__const__))
		778	#define ecb_pure ecb_attribute ((__pure__))
		779
		780	#if ECB_C11
		781	#define ecb_noreturn _Noreturn
		782	#else
		783	#define ecb_noreturn ecb_attribute ((__noreturn__))
		784	#endif
		785
		786	#if ECB_GCC_VERSION(4,3)
		787	#define ecb_artificial ecb_attribute ((__artificial__))
		788	#define ecb_hot ecb_attribute ((__hot__))
		789	#define ecb_cold ecb_attribute ((__cold__))
		790	#else
		791	#define ecb_artificial
		792	#define ecb_hot
		793	#define ecb_cold
		794	#endif
		795
		796	/* put around conditional expressions if you are very sure that the */
		797	/* expression is mostly true or mostly false. note that these return */
		798	/* booleans, not the expression. */
480	#define expect_false(expr) expect ((expr) != 0, 0)	799	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481	#define expect_true(expr) expect ((expr) != 0, 1)	800	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		801	/* for compatibility to the rest of the world */
		802	#define ecb_likely(expr) ecb_expect_true (expr)
		803	#define ecb_unlikely(expr) ecb_expect_false (expr)
		804
		805	/* count trailing zero bits and count # of one bits */
		806	#if ECB_GCC_VERSION(3,4)
		807	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		808	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		809	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		810	#define ecb_ctz32(x) __builtin_ctz (x)
		811	#define ecb_ctz64(x) __builtin_ctzll (x)
		812	#define ecb_popcount32(x) __builtin_popcount (x)
		813	/* no popcountll */
		814	#else
		815	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		816	ecb_function_ int
		817	ecb_ctz32 (uint32_t x)
		818	{
		819	int r = 0;
		820
		821	x &= ~x + 1; /* this isolates the lowest bit */
		822
		823	#if ECB_branchless_on_i386
		824	r += !!(x & 0xaaaaaaaa) << 0;
		825	r += !!(x & 0xcccccccc) << 1;
		826	r += !!(x & 0xf0f0f0f0) << 2;
		827	r += !!(x & 0xff00ff00) << 3;
		828	r += !!(x & 0xffff0000) << 4;
		829	#else
		830	if (x & 0xaaaaaaaa) r += 1;
		831	if (x & 0xcccccccc) r += 2;
		832	if (x & 0xf0f0f0f0) r += 4;
		833	if (x & 0xff00ff00) r += 8;
		834	if (x & 0xffff0000) r += 16;
		835	#endif
		836
		837	return r;
		838	}
		839
		840	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		841	ecb_function_ int
		842	ecb_ctz64 (uint64_t x)
		843	{
		844	int shift = x & 0xffffffffU ? 0 : 32;
		845	return ecb_ctz32 (x >> shift) + shift;
		846	}
		847
		848	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		849	ecb_function_ int
		850	ecb_popcount32 (uint32_t x)
		851	{
		852	x -= (x >> 1) & 0x55555555;
		853	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		854	x = ((x >> 4) + x) & 0x0f0f0f0f;
		855	x *= 0x01010101;
		856
		857	return x >> 24;
		858	}
		859
		860	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		861	ecb_function_ int ecb_ld32 (uint32_t x)
		862	{
		863	int r = 0;
		864
		865	if (x >> 16) { x >>= 16; r += 16; }
		866	if (x >> 8) { x >>= 8; r += 8; }
		867	if (x >> 4) { x >>= 4; r += 4; }
		868	if (x >> 2) { x >>= 2; r += 2; }
		869	if (x >> 1) { r += 1; }
		870
		871	return r;
		872	}
		873
		874	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		875	ecb_function_ int ecb_ld64 (uint64_t x)
		876	{
		877	int r = 0;
		878
		879	if (x >> 32) { x >>= 32; r += 32; }
		880
		881	return r + ecb_ld32 (x);
		882	}
		883	#endif
		884
		885	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		886	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		887	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		888	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		889
		890	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		891	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		892	{
		893	return ( (x * 0x0802U & 0x22110U)
		894	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		895	}
		896
		897	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		898	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		899	{
		900	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
		901	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
		902	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
		903	x = ( x >> 8 ) | ( x << 8);
		904
		905	return x;
		906	}
		907
		908	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		909	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		910	{
		911	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
		912	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
		913	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
		914	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
		915	x = ( x >> 16 ) | ( x << 16);
		916
		917	return x;
		918	}
		919
		920	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		921	/* so for this version we are lazy */
		922	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		923	ecb_function_ int
		924	ecb_popcount64 (uint64_t x)
		925	{
		926	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		927	}
		928
		929	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		930	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		931	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		932	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		933	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		934	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		935	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		936	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		937
		938	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
		939	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
		940	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
		941	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
		942	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
		943	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
		944	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
		945	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
		946
		947	#if ECB_GCC_VERSION(4,3)
		948	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		949	#define ecb_bswap32(x) __builtin_bswap32 (x)
		950	#define ecb_bswap64(x) __builtin_bswap64 (x)
		951	#else
		952	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		953	ecb_function_ uint16_t
		954	ecb_bswap16 (uint16_t x)
		955	{
		956	return ecb_rotl16 (x, 8);
		957	}
		958
		959	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		960	ecb_function_ uint32_t
		961	ecb_bswap32 (uint32_t x)
		962	{
		963	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
		964	}
		965
		966	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		967	ecb_function_ uint64_t
		968	ecb_bswap64 (uint64_t x)
		969	{
		970	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
		971	}
		972	#endif
		973
		974	#if ECB_GCC_VERSION(4,5)
		975	#define ecb_unreachable() __builtin_unreachable ()
		976	#else
		977	/* this seems to work fine, but gcc always emits a warning for it :/ */
		978	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		979	ecb_inline void ecb_unreachable (void) { }
		980	#endif
		981
		982	/* try to tell the compiler that some condition is definitely true */
		983	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
		984
		985	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		986	ecb_inline unsigned char
		987	ecb_byteorder_helper (void)
		988	{
		989	/* the union code still generates code under pressure in gcc, */
		990	/* but less than using pointers, and always seems to */
		991	/* successfully return a constant. */
		992	/* the reason why we have this horrible preprocessor mess */
		993	/* is to avoid it in all cases, at least on common architectures */
		994	/* or when using a recent enough gcc version (>= 4.6) */
		995	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		996	return 0x44;
		997	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		998	return 0x44;
		999	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		1000	return 0x11;
		1001	#else
		1002	union
		1003	{
		1004	uint32_t i;
		1005	uint8_t c;
		1006	} u = { 0x11223344 };
		1007	return u.c;
		1008	#endif
		1009	}
		1010
		1011	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		1012	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		1013	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		1014	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		1015
		1016	#if ECB_GCC_VERSION(3,0) || ECB_C99
		1017	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		1018	#else
		1019	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		1020	#endif
		1021
		1022	#if __cplusplus
		1023	template<typename T>
		1024	static inline T ecb_div_rd (T val, T div)
		1025	{
		1026	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		1027	}
		1028	template<typename T>
		1029	static inline T ecb_div_ru (T val, T div)
		1030	{
		1031	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		1032	}
		1033	#else
		1034	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		1035	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		1036	#endif
		1037
		1038	#if ecb_cplusplus_does_not_suck
		1039	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		1040	template<typename T, int N>
		1041	static inline int ecb_array_length (const T (&arr)[N])
		1042	{
		1043	return N;
		1044	}
		1045	#else
		1046	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		1047	#endif
		1048
		1049	/*******************************************************************************/
		1050	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1051
		1052	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1053	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1054	#if 0 \
		1055	|| __i386 || __i386__ \
		1056	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1057	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1058	|| defined __arm__ && defined __ARM_EABI__ \
		1059	|| defined __s390__ || defined __s390x__ \
		1060	|| defined __mips__ \
		1061	|| defined __alpha__ \
		1062	|| defined __hppa__ \
		1063	|| defined __ia64__ \
		1064	|| defined __m68k__ \
		1065	|| defined __m88k__ \
		1066	|| defined __sh__ \
		1067	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1068	#define ECB_STDFP 1
		1069	#include <string.h> /* for memcpy */
		1070	#else
		1071	#define ECB_STDFP 0
		1072	#include <math.h> /* for frexp*, ldexp* */
		1073	#endif
		1074
		1075	#ifndef ECB_NO_LIBM
		1076
		1077	/* convert a float to ieee single/binary32 */
		1078	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1079	ecb_function_ uint32_t
		1080	ecb_float_to_binary32 (float x)
		1081	{
		1082	uint32_t r;
		1083
		1084	#if ECB_STDFP
		1085	memcpy (&r, &x, 4);
		1086	#else
		1087	/* slow emulation, works for anything but -0 */
		1088	uint32_t m;
		1089	int e;
		1090
		1091	if (x == 0e0f ) return 0x00000000U;
		1092	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1093	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1094	if (x != x ) return 0x7fbfffffU;
		1095
		1096	m = frexpf (x, &e) * 0x1000000U;
		1097
		1098	r = m & 0x80000000U;
		1099
		1100	if (r)
		1101	m = -m;
		1102
		1103	if (e <= -126)
		1104	{
		1105	m &= 0xffffffU;
		1106	m >>= (-125 - e);
		1107	e = -126;
		1108	}
		1109
		1110	r |= (e + 126) << 23;
		1111	r |= m & 0x7fffffU;
		1112	#endif
		1113
		1114	return r;
		1115	}
		1116
		1117	/* converts an ieee single/binary32 to a float */
		1118	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1119	ecb_function_ float
		1120	ecb_binary32_to_float (uint32_t x)
		1121	{
		1122	float r;
		1123
		1124	#if ECB_STDFP
		1125	memcpy (&r, &x, 4);
		1126	#else
		1127	/* emulation, only works for normals and subnormals and +0 */
		1128	int neg = x >> 31;
		1129	int e = (x >> 23) & 0xffU;
		1130
		1131	x &= 0x7fffffU;
		1132
		1133	if (e)
		1134	x |= 0x800000U;
		1135	else
		1136	e = 1;
		1137
		1138	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1139	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1140
		1141	r = neg ? -r : r;
		1142	#endif
		1143
		1144	return r;
		1145	}
		1146
		1147	/* convert a double to ieee double/binary64 */
		1148	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1149	ecb_function_ uint64_t
		1150	ecb_double_to_binary64 (double x)
		1151	{
		1152	uint64_t r;
		1153
		1154	#if ECB_STDFP
		1155	memcpy (&r, &x, 8);
		1156	#else
		1157	/* slow emulation, works for anything but -0 */
		1158	uint64_t m;
		1159	int e;
		1160
		1161	if (x == 0e0 ) return 0x0000000000000000U;
		1162	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1163	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1164	if (x != x ) return 0X7ff7ffffffffffffU;
		1165
		1166	m = frexp (x, &e) * 0x20000000000000U;
		1167
		1168	r = m & 0x8000000000000000;;
		1169
		1170	if (r)
		1171	m = -m;
		1172
		1173	if (e <= -1022)
		1174	{
		1175	m &= 0x1fffffffffffffU;
		1176	m >>= (-1021 - e);
		1177	e = -1022;
		1178	}
		1179
		1180	r |= ((uint64_t)(e + 1022)) << 52;
		1181	r |= m & 0xfffffffffffffU;
		1182	#endif
		1183
		1184	return r;
		1185	}
		1186
		1187	/* converts an ieee double/binary64 to a double */
		1188	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1189	ecb_function_ double
		1190	ecb_binary64_to_double (uint64_t x)
		1191	{
		1192	double r;
		1193
		1194	#if ECB_STDFP
		1195	memcpy (&r, &x, 8);
		1196	#else
		1197	/* emulation, only works for normals and subnormals and +0 */
		1198	int neg = x >> 63;
		1199	int e = (x >> 52) & 0x7ffU;
		1200
		1201	x &= 0xfffffffffffffU;
		1202
		1203	if (e)
		1204	x |= 0x10000000000000U;
		1205	else
		1206	e = 1;
		1207
		1208	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1209	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1210
		1211	r = neg ? -r : r;
		1212	#endif
		1213
		1214	return r;
		1215	}
		1216
		1217	#endif
		1218
		1219	#endif
		1220
		1221	/* ECB.H END */
		1222
		1223	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		1224	/* if your architecture doesn't need memory fences, e.g. because it is
		1225	* single-cpu/core, or if you use libev in a project that doesn't use libev
		1226	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		1227	* libev, in which cases the memory fences become nops.
		1228	* alternatively, you can remove this #error and link against libpthread,
		1229	* which will then provide the memory fences.
		1230	*/
		1231	# error "memory fences not defined for your architecture, please report"
		1232	#endif
		1233
		1234	#ifndef ECB_MEMORY_FENCE
		1235	# define ECB_MEMORY_FENCE do { } while (0)
		1236	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		1237	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		1238	#endif
		1239
		1240	#define expect_false(cond) ecb_expect_false (cond)
		1241	#define expect_true(cond) ecb_expect_true (cond)
		1242	#define noinline ecb_noinline
		1243
482	#define inline_size static inline	1244	#define inline_size ecb_inline
483		1245
484	#if EV_FEATURE_CODE	1246	#if EV_FEATURE_CODE
485	# define inline_speed static inline	1247	# define inline_speed ecb_inline
486	#else	1248	#else
487	# define inline_speed static noinline	1249	# define inline_speed static noinline
488	#endif	1250	#endif
489		1251
490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1252	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
581		1343
582	#ifdef __linux	1344	#ifdef __linux
583	# include <sys/utsname.h>	1345	# include <sys/utsname.h>
584	#endif	1346	#endif
585		1347
586	static unsigned int noinline	1348	static unsigned int noinline ecb_cold
587	ev_linux_version (void)	1349	ev_linux_version (void)
588	{	1350	{
589	#ifdef __linux	1351	#ifdef __linux
590	unsigned int v = 0;	1352	unsigned int v = 0;
591	struct utsname buf;	1353	struct utsname buf;
…		…
620	}	1382	}
621		1383
622	/*****************************************************************************/	1384	/*****************************************************************************/
623		1385
624	#if EV_AVOID_STDIO	1386	#if EV_AVOID_STDIO
625	static void noinline	1387	static void noinline ecb_cold
626	ev_printerr (const char *msg)	1388	ev_printerr (const char *msg)
627	{	1389	{
628	write (STDERR_FILENO, msg, strlen (msg));	1390	write (STDERR_FILENO, msg, strlen (msg));
629	}	1391	}
630	#endif	1392	#endif
631		1393
632	static void (*syserr_cb)(const char *msg);	1394	static void (*syserr_cb)(const char *msg) EV_THROW;
633		1395
634	void	1396	void ecb_cold
635	ev_set_syserr_cb (void (*cb)(const char *msg))	1397	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636	{	1398	{
637	syserr_cb = cb;	1399	syserr_cb = cb;
638	}	1400	}
639		1401
640	static void noinline	1402	static void noinline ecb_cold
641	ev_syserr (const char *msg)	1403	ev_syserr (const char *msg)
642	{	1404	{
643	if (!msg)	1405	if (!msg)
644	msg = "(libev) system error";	1406	msg = "(libev) system error";
645		1407
…		…
658	abort ();	1420	abort ();
659	}	1421	}
660	}	1422	}
661		1423
662	static void *	1424	static void *
663	ev_realloc_emul (void *ptr, long size)	1425	ev_realloc_emul (void *ptr, long size) EV_THROW
664	{	1426	{
665	#if __GLIBC__
666	return realloc (ptr, size);
667	#else
668	/* some systems, notably openbsd and darwin, fail to properly	1427	/* some systems, notably openbsd and darwin, fail to properly
669	* implement realloc (x, 0) (as required by both ansi c-89 and	1428	* implement realloc (x, 0) (as required by both ansi c-89 and
670	* the single unix specification, so work around them here.	1429	* the single unix specification, so work around them here.
		1430	* recently, also (at least) fedora and debian started breaking it,
		1431	* despite documenting it otherwise.
671	*/	1432	*/
672		1433
673	if (size)	1434	if (size)
674	return realloc (ptr, size);	1435	return realloc (ptr, size);
675		1436
676	free (ptr);	1437	free (ptr);
677	return 0;	1438	return 0;
678	#endif
679	}	1439	}
680		1440
681	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1441	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682		1442
683	void	1443	void ecb_cold
684	ev_set_allocator (void *(*cb)(void *ptr, long size))	1444	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685	{	1445	{
686	alloc = cb;	1446	alloc = cb;
687	}	1447	}
688		1448
689	inline_speed void *	1449	inline_speed void *
…		…
777	#undef VAR	1537	#undef VAR
778	};	1538	};
779	#include "ev_wrap.h"	1539	#include "ev_wrap.h"
780		1540
781	static struct ev_loop default_loop_struct;	1541	static struct ev_loop default_loop_struct;
782	struct ev_loop *ev_default_loop_ptr;	1542	EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783		1543
784	#else	1544	#else
785		1545
786	ev_tstamp ev_rt_now;	1546	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;	1547	#define VAR(name,decl) static decl;
788	#include "ev_vars.h"	1548	#include "ev_vars.h"
789	#undef VAR	1549	#undef VAR
790		1550
791	static int ev_default_loop_ptr;	1551	static int ev_default_loop_ptr;
…		…
806		1566
807	/*****************************************************************************/	1567	/*****************************************************************************/
808		1568
809	#ifndef EV_HAVE_EV_TIME	1569	#ifndef EV_HAVE_EV_TIME
810	ev_tstamp	1570	ev_tstamp
811	ev_time (void)	1571	ev_time (void) EV_THROW
812	{	1572	{
813	#if EV_USE_REALTIME	1573	#if EV_USE_REALTIME
814	if (expect_true (have_realtime))	1574	if (expect_true (have_realtime))
815	{	1575	{
816	struct timespec ts;	1576	struct timespec ts;
…		…
840	return ev_time ();	1600	return ev_time ();
841	}	1601	}
842		1602
843	#if EV_MULTIPLICITY	1603	#if EV_MULTIPLICITY
844	ev_tstamp	1604	ev_tstamp
845	ev_now (EV_P)	1605	ev_now (EV_P) EV_THROW
846	{	1606	{
847	return ev_rt_now;	1607	return ev_rt_now;
848	}	1608	}
849	#endif	1609	#endif
850		1610
851	void	1611	void
852	ev_sleep (ev_tstamp delay)	1612	ev_sleep (ev_tstamp delay) EV_THROW
853	{	1613	{
854	if (delay > 0.)	1614	if (delay > 0.)
855	{	1615	{
856	#if EV_USE_NANOSLEEP	1616	#if EV_USE_NANOSLEEP
857	struct timespec ts;	1617	struct timespec ts;
858		1618
859	EV_TS_SET (ts, delay);	1619	EV_TS_SET (ts, delay);
860	nanosleep (&ts, 0);	1620	nanosleep (&ts, 0);
861	#elif defined(_WIN32)	1621	#elif defined _WIN32
862	Sleep ((unsigned long)(delay * 1e3));	1622	Sleep ((unsigned long)(delay * 1e3));
863	#else	1623	#else
864	struct timeval tv;	1624	struct timeval tv;
865		1625
866	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1626	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
885		1645
886	do	1646	do
887	ncur <<= 1;	1647	ncur <<= 1;
888	while (cnt > ncur);	1648	while (cnt > ncur);
889		1649
890	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1650	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)	1651	if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892	{	1652	{
893	ncur *= elem;	1653	ncur *= elem;
894	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);	1654	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895	ncur = ncur - sizeof (void *) * 4;	1655	ncur = ncur - sizeof (void *) * 4;
…		…
897	}	1657	}
898		1658
899	return ncur;	1659	return ncur;
900	}	1660	}
901		1661
902	static noinline void *	1662	static void * noinline ecb_cold
903	array_realloc (int elem, void *base, int *cur, int cnt)	1663	array_realloc (int elem, void *base, int *cur, int cnt)
904	{	1664	{
905	*cur = array_nextsize (elem, *cur, cnt);	1665	*cur = array_nextsize (elem, *cur, cnt);
906	return ev_realloc (base, elem * *cur);	1666	return ev_realloc (base, elem * *cur);
907	}	1667	}
…		…
910	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1670	memset ((void *)(base), 0, sizeof (*(base)) * (count))
911		1671
912	#define array_needsize(type,base,cur,cnt,init) \	1672	#define array_needsize(type,base,cur,cnt,init) \
913	if (expect_false ((cnt) > (cur))) \	1673	if (expect_false ((cnt) > (cur))) \
914	{ \	1674	{ \
915	int ocur_ = (cur); \	1675	int ecb_unused ocur_ = (cur); \
916	(base) = (type *)array_realloc \	1676	(base) = (type *)array_realloc \
917	(sizeof (type), (base), &(cur), (cnt)); \	1677	(sizeof (type), (base), &(cur), (cnt)); \
918	init ((base) + (ocur_), (cur) - ocur_); \	1678	init ((base) + (ocur_), (cur) - ocur_); \
919	}	1679	}
920		1680
…		…
938	pendingcb (EV_P_ ev_prepare *w, int revents)	1698	pendingcb (EV_P_ ev_prepare *w, int revents)
939	{	1699	{
940	}	1700	}
941		1701
942	void noinline	1702	void noinline
943	ev_feed_event (EV_P_ void *w, int revents)	1703	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944	{	1704	{
945	W w_ = (W)w;	1705	W w_ = (W)w;
946	int pri = ABSPRI (w_);	1706	int pri = ABSPRI (w_);
947		1707
948	if (expect_false (w_->pending))	1708	if (expect_false (w_->pending))
…		…
952	w_->pending = ++pendingcnt [pri];	1712	w_->pending = ++pendingcnt [pri];
953	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1713	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954	pendings [pri][w_->pending - 1].w = w_;	1714	pendings [pri][w_->pending - 1].w = w_;
955	pendings [pri][w_->pending - 1].events = revents;	1715	pendings [pri][w_->pending - 1].events = revents;
956	}	1716	}
		1717
		1718	pendingpri = NUMPRI - 1;
957	}	1719	}
958		1720
959	inline_speed void	1721	inline_speed void
960	feed_reverse (EV_P_ W w)	1722	feed_reverse (EV_P_ W w)
961	{	1723	{
…		…
1007	if (expect_true (!anfd->reify))	1769	if (expect_true (!anfd->reify))
1008	fd_event_nocheck (EV_A_ fd, revents);	1770	fd_event_nocheck (EV_A_ fd, revents);
1009	}	1771	}
1010		1772
1011	void	1773	void
1012	ev_feed_fd_event (EV_P_ int fd, int revents)	1774	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013	{	1775	{
1014	if (fd >= 0 && fd < anfdmax)	1776	if (fd >= 0 && fd < anfdmax)
1015	fd_event_nocheck (EV_A_ fd, revents);	1777	fd_event_nocheck (EV_A_ fd, revents);
1016	}	1778	}
1017		1779
…		…
1090	fdchanges [fdchangecnt - 1] = fd;	1852	fdchanges [fdchangecnt - 1] = fd;
1091	}	1853	}
1092	}	1854	}
1093		1855
1094	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1856	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095	inline_speed void	1857	inline_speed void ecb_cold
1096	fd_kill (EV_P_ int fd)	1858	fd_kill (EV_P_ int fd)
1097	{	1859	{
1098	ev_io *w;	1860	ev_io *w;
1099		1861
1100	while ((w = (ev_io *)anfds [fd].head))	1862	while ((w = (ev_io *)anfds [fd].head))
…		…
1103	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	1865	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104	}	1866	}
1105	}	1867	}
1106		1868
1107	/* check whether the given fd is actually valid, for error recovery */	1869	/* check whether the given fd is actually valid, for error recovery */
1108	inline_size int	1870	inline_size int ecb_cold
1109	fd_valid (int fd)	1871	fd_valid (int fd)
1110	{	1872	{
1111	#ifdef _WIN32	1873	#ifdef _WIN32
1112	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1874	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113	#else	1875	#else
1114	return fcntl (fd, F_GETFD) != -1;	1876	return fcntl (fd, F_GETFD) != -1;
1115	#endif	1877	#endif
1116	}	1878	}
1117		1879
1118	/* called on EBADF to verify fds */	1880	/* called on EBADF to verify fds */
1119	static void noinline	1881	static void noinline ecb_cold
1120	fd_ebadf (EV_P)	1882	fd_ebadf (EV_P)
1121	{	1883	{
1122	int fd;	1884	int fd;
1123		1885
1124	for (fd = 0; fd < anfdmax; ++fd)	1886	for (fd = 0; fd < anfdmax; ++fd)
…		…
1126	if (!fd_valid (fd) && errno == EBADF)	1888	if (!fd_valid (fd) && errno == EBADF)
1127	fd_kill (EV_A_ fd);	1889	fd_kill (EV_A_ fd);
1128	}	1890	}
1129		1891
1130	/* called on ENOMEM in select/poll to kill some fds and retry */	1892	/* called on ENOMEM in select/poll to kill some fds and retry */
1131	static void noinline	1893	static void noinline ecb_cold
1132	fd_enomem (EV_P)	1894	fd_enomem (EV_P)
1133	{	1895	{
1134	int fd;	1896	int fd;
1135		1897
1136	for (fd = anfdmax; fd--; )	1898	for (fd = anfdmax; fd--; )
…		…
1331		2093
1332	/*****************************************************************************/	2094	/*****************************************************************************/
1333		2095
1334	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2096	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335		2097
1336	static void noinline	2098	static void noinline ecb_cold
1337	evpipe_init (EV_P)	2099	evpipe_init (EV_P)
1338	{	2100	{
1339	if (!ev_is_active (&pipe_w))	2101	if (!ev_is_active (&pipe_w))
1340	{	2102	{
		2103	int fds [2];
		2104
1341	# if EV_USE_EVENTFD	2105	# if EV_USE_EVENTFD
		2106	fds [0] = -1;
1342	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2107	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1343	if (evfd < 0 && errno == EINVAL)	2108	if (fds [1] < 0 && errno == EINVAL)
1344	evfd = eventfd (0, 0);	2109	fds [1] = eventfd (0, 0);
1345		2110
1346	if (evfd >= 0)	2111	if (fds [1] < 0)
		2112	# endif
1347	{	2113	{
		2114	while (pipe (fds))
		2115	ev_syserr ("(libev) error creating signal/async pipe");
		2116
		2117	fd_intern (fds [0]);
		2118	}
		2119
1348	evpipe [0] = -1;	2120	evpipe [0] = fds [0];
1349	fd_intern (evfd); /* doing it twice doesn't hurt */	2121
1350	ev_io_set (&pipe_w, evfd, EV_READ);	2122	if (evpipe [1] < 0)
		2123	evpipe [1] = fds [1]; /* first call, set write fd */
		2124	else
		2125	{
		2126	/* on subsequent calls, do not change evpipe [1] */
		2127	/* so that evpipe_write can always rely on its value. */
		2128	/* this branch does not do anything sensible on windows, */
		2129	/* so must not be executed on windows */
		2130
		2131	dup2 (fds [1], evpipe [1]);
		2132	close (fds [1]);
		2133	}
		2134
		2135	fd_intern (evpipe [1]);
		2136
		2137	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2138	ev_io_start (EV_A_ &pipe_w);
		2139	ev_unref (EV_A); /* watcher should not keep loop alive */
		2140	}
		2141	}
		2142
		2143	inline_speed void
		2144	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2145	{
		2146	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2147
		2148	if (expect_true (*flag))
		2149	return;
		2150
		2151	*flag = 1;
		2152	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2153
		2154	pipe_write_skipped = 1;
		2155
		2156	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2157
		2158	if (pipe_write_wanted)
		2159	{
		2160	int old_errno;
		2161
		2162	pipe_write_skipped = 0;
		2163	ECB_MEMORY_FENCE_RELEASE;
		2164
		2165	old_errno = errno; /* save errno because write will clobber it */
		2166
		2167	#if EV_USE_EVENTFD
		2168	if (evpipe [0] < 0)
		2169	{
		2170	uint64_t counter = 1;
		2171	write (evpipe [1], &counter, sizeof (uint64_t));
1351	}	2172	}
1352	else	2173	else
1353	# endif	2174	#endif
1354	{	2175	{
1355	while (pipe (evpipe))	2176	#ifdef _WIN32
1356	ev_syserr ("(libev) error creating signal/async pipe");	2177	WSABUF buf;
1357		2178	DWORD sent;
1358	fd_intern (evpipe [0]);	2179	buf.buf = &buf;
1359	fd_intern (evpipe [1]);	2180	buf.len = 1;
1360	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2181	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
		2182	#else
		2183	write (evpipe [1], &(evpipe [1]), 1);
		2184	#endif
1361	}	2185	}
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		2186
1393	errno = old_errno;	2187	errno = old_errno;
1394	}	2188	}
1395	}	2189	}
1396		2190
…		…
1399	static void	2193	static void
1400	pipecb (EV_P_ ev_io *iow, int revents)	2194	pipecb (EV_P_ ev_io *iow, int revents)
1401	{	2195	{
1402	int i;	2196	int i;
1403		2197
		2198	if (revents & EV_READ)
		2199	{
1404	#if EV_USE_EVENTFD	2200	#if EV_USE_EVENTFD
1405	if (evfd >= 0)	2201	if (evpipe [0] < 0)
1406	{	2202	{
1407	uint64_t counter;	2203	uint64_t counter;
1408	read (evfd, &counter, sizeof (uint64_t));	2204	read (evpipe [1], &counter, sizeof (uint64_t));
1409	}	2205	}
1410	else	2206	else
1411	#endif	2207	#endif
1412	{	2208	{
1413	char dummy;	2209	char dummy[4];
1414	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2210	#ifdef _WIN32
		2211	WSABUF buf;
		2212	DWORD recvd;
		2213	DWORD flags = 0;
		2214	buf.buf = dummy;
		2215	buf.len = sizeof (dummy);
		2216	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2217	#else
1415	read (evpipe [0], &dummy, 1);	2218	read (evpipe [0], &dummy, sizeof (dummy));
		2219	#endif
		2220	}
1416	}	2221	}
		2222
		2223	pipe_write_skipped = 0;
		2224
		2225	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1417		2226
1418	#if EV_SIGNAL_ENABLE	2227	#if EV_SIGNAL_ENABLE
1419	if (sig_pending)	2228	if (sig_pending)
1420	{	2229	{
1421	sig_pending = 0;	2230	sig_pending = 0;
		2231
		2232	ECB_MEMORY_FENCE;
1422		2233
1423	for (i = EV_NSIG - 1; i--; )	2234	for (i = EV_NSIG - 1; i--; )
1424	if (expect_false (signals [i].pending))	2235	if (expect_false (signals [i].pending))
1425	ev_feed_signal_event (EV_A_ i + 1);	2236	ev_feed_signal_event (EV_A_ i + 1);
1426	}	2237	}
…		…
1428		2239
1429	#if EV_ASYNC_ENABLE	2240	#if EV_ASYNC_ENABLE
1430	if (async_pending)	2241	if (async_pending)
1431	{	2242	{
1432	async_pending = 0;	2243	async_pending = 0;
		2244
		2245	ECB_MEMORY_FENCE;
1433		2246
1434	for (i = asynccnt; i--; )	2247	for (i = asynccnt; i--; )
1435	if (asyncs [i]->sent)	2248	if (asyncs [i]->sent)
1436	{	2249	{
1437	asyncs [i]->sent = 0;	2250	asyncs [i]->sent = 0;
		2251	ECB_MEMORY_FENCE_RELEASE;
1438	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2252	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1439	}	2253	}
1440	}	2254	}
1441	#endif	2255	#endif
1442	}	2256	}
1443		2257
1444	/*****************************************************************************/	2258	/*****************************************************************************/
1445		2259
1446	void	2260	void
1447	ev_feed_signal (int signum)	2261	ev_feed_signal (int signum) EV_THROW
1448	{	2262	{
1449	#if EV_MULTIPLICITY	2263	#if EV_MULTIPLICITY
		2264	EV_P;
		2265	ECB_MEMORY_FENCE_ACQUIRE;
1450	EV_P = signals [signum - 1].loop;	2266	EV_A = signals [signum - 1].loop;
1451		2267
1452	if (!EV_A)	2268	if (!EV_A)
1453	return;	2269	return;
1454	#endif	2270	#endif
1455		2271
…		…
1466		2282
1467	ev_feed_signal (signum);	2283	ev_feed_signal (signum);
1468	}	2284	}
1469		2285
1470	void noinline	2286	void noinline
1471	ev_feed_signal_event (EV_P_ int signum)	2287	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1472	{	2288	{
1473	WL w;	2289	WL w;
1474		2290
1475	if (expect_false (signum <= 0 || signum > EV_NSIG))	2291	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1476	return;	2292	return;
1477		2293
1478	--signum;	2294	--signum;
1479		2295
1480	#if EV_MULTIPLICITY	2296	#if EV_MULTIPLICITY
…		…
1484	if (expect_false (signals [signum].loop != EV_A))	2300	if (expect_false (signals [signum].loop != EV_A))
1485	return;	2301	return;
1486	#endif	2302	#endif
1487		2303
1488	signals [signum].pending = 0;	2304	signals [signum].pending = 0;
		2305	ECB_MEMORY_FENCE_RELEASE;
1489		2306
1490	for (w = signals [signum].head; w; w = w->next)	2307	for (w = signals [signum].head; w; w = w->next)
1491	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2308	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1492	}	2309	}
1493		2310
…		…
1591	#endif	2408	#endif
1592	#if EV_USE_SELECT	2409	#if EV_USE_SELECT
1593	# include "ev_select.c"	2410	# include "ev_select.c"
1594	#endif	2411	#endif
1595		2412
1596	int	2413	int ecb_cold
1597	ev_version_major (void)	2414	ev_version_major (void) EV_THROW
1598	{	2415	{
1599	return EV_VERSION_MAJOR;	2416	return EV_VERSION_MAJOR;
1600	}	2417	}
1601		2418
1602	int	2419	int ecb_cold
1603	ev_version_minor (void)	2420	ev_version_minor (void) EV_THROW
1604	{	2421	{
1605	return EV_VERSION_MINOR;	2422	return EV_VERSION_MINOR;
1606	}	2423	}
1607		2424
1608	/* return true if we are running with elevated privileges and should ignore env variables */	2425	/* return true if we are running with elevated privileges and should ignore env variables */
1609	int inline_size	2426	int inline_size ecb_cold
1610	enable_secure (void)	2427	enable_secure (void)
1611	{	2428	{
1612	#ifdef _WIN32	2429	#ifdef _WIN32
1613	return 0;	2430	return 0;
1614	#else	2431	#else
1615	return getuid () != geteuid ()	2432	return getuid () != geteuid ()
1616	|| getgid () != getegid ();	2433	|| getgid () != getegid ();
1617	#endif	2434	#endif
1618	}	2435	}
1619		2436
1620	unsigned int	2437	unsigned int ecb_cold
1621	ev_supported_backends (void)	2438	ev_supported_backends (void) EV_THROW
1622	{	2439	{
1623	unsigned int flags = 0;	2440	unsigned int flags = 0;
1624		2441
1625	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2442	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1626	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2443	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
1629	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2446	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1630		2447
1631	return flags;	2448	return flags;
1632	}	2449	}
1633		2450
1634	unsigned int	2451	unsigned int ecb_cold
1635	ev_recommended_backends (void)	2452	ev_recommended_backends (void) EV_THROW
1636	{	2453	{
1637	unsigned int flags = ev_supported_backends ();	2454	unsigned int flags = ev_supported_backends ();
1638		2455
1639	#ifndef __NetBSD__	2456	#ifndef __NetBSD__
1640	/* kqueue is borked on everything but netbsd apparently */	2457	/* kqueue is borked on everything but netbsd apparently */
…		…
1651	#endif	2468	#endif
1652		2469
1653	return flags;	2470	return flags;
1654	}	2471	}
1655		2472
1656	unsigned int	2473	unsigned int ecb_cold
1657	ev_embeddable_backends (void)	2474	ev_embeddable_backends (void) EV_THROW
1658	{	2475	{
1659	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2476	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1660		2477
1661	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2478	/* 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 */	2479	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
1664		2481
1665	return flags;	2482	return flags;
1666	}	2483	}
1667		2484
1668	unsigned int	2485	unsigned int
1669	ev_backend (EV_P)	2486	ev_backend (EV_P) EV_THROW
1670	{	2487	{
1671	return backend;	2488	return backend;
1672	}	2489	}
1673		2490
1674	#if EV_FEATURE_API	2491	#if EV_FEATURE_API
1675	unsigned int	2492	unsigned int
1676	ev_iteration (EV_P)	2493	ev_iteration (EV_P) EV_THROW
1677	{	2494	{
1678	return loop_count;	2495	return loop_count;
1679	}	2496	}
1680		2497
1681	unsigned int	2498	unsigned int
1682	ev_depth (EV_P)	2499	ev_depth (EV_P) EV_THROW
1683	{	2500	{
1684	return loop_depth;	2501	return loop_depth;
1685	}	2502	}
1686		2503
1687	void	2504	void
1688	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2505	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1689	{	2506	{
1690	io_blocktime = interval;	2507	io_blocktime = interval;
1691	}	2508	}
1692		2509
1693	void	2510	void
1694	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2511	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1695	{	2512	{
1696	timeout_blocktime = interval;	2513	timeout_blocktime = interval;
1697	}	2514	}
1698		2515
1699	void	2516	void
1700	ev_set_userdata (EV_P_ void *data)	2517	ev_set_userdata (EV_P_ void *data) EV_THROW
1701	{	2518	{
1702	userdata = data;	2519	userdata = data;
1703	}	2520	}
1704		2521
1705	void *	2522	void *
1706	ev_userdata (EV_P)	2523	ev_userdata (EV_P) EV_THROW
1707	{	2524	{
1708	return userdata;	2525	return userdata;
1709	}	2526	}
1710		2527
		2528	void
1711	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2529	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1712	{	2530	{
1713	invoke_cb = invoke_pending_cb;	2531	invoke_cb = invoke_pending_cb;
1714	}	2532	}
1715		2533
		2534	void
1716	void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2535	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1717	{	2536	{
1718	release_cb = release;	2537	release_cb = release;
1719	acquire_cb = acquire;	2538	acquire_cb = acquire;
1720	}	2539	}
1721	#endif	2540	#endif
1722		2541
1723	/* initialise a loop structure, must be zero-initialised */	2542	/* initialise a loop structure, must be zero-initialised */
1724	static void noinline	2543	static void noinline ecb_cold
1725	loop_init (EV_P_ unsigned int flags)	2544	loop_init (EV_P_ unsigned int flags) EV_THROW
1726	{	2545	{
1727	if (!backend)	2546	if (!backend)
1728	{	2547	{
1729	origflags = flags;	2548	origflags = flags;
1730		2549
…		…
1757	if (!(flags & EVFLAG_NOENV)	2576	if (!(flags & EVFLAG_NOENV)
1758	&& !enable_secure ()	2577	&& !enable_secure ()
1759	&& getenv ("LIBEV_FLAGS"))	2578	&& getenv ("LIBEV_FLAGS"))
1760	flags = atoi (getenv ("LIBEV_FLAGS"));	2579	flags = atoi (getenv ("LIBEV_FLAGS"));
1761		2580
1762	ev_rt_now = ev_time ();	2581	ev_rt_now = ev_time ();
1763	mn_now = get_clock ();	2582	mn_now = get_clock ();
1764	now_floor = mn_now;	2583	now_floor = mn_now;
1765	rtmn_diff = ev_rt_now - mn_now;	2584	rtmn_diff = ev_rt_now - mn_now;
1766	#if EV_FEATURE_API	2585	#if EV_FEATURE_API
1767	invoke_cb = ev_invoke_pending;	2586	invoke_cb = ev_invoke_pending;
1768	#endif	2587	#endif
1769		2588
1770	io_blocktime = 0.;	2589	io_blocktime = 0.;
1771	timeout_blocktime = 0.;	2590	timeout_blocktime = 0.;
1772	backend = 0;	2591	backend = 0;
1773	backend_fd = -1;	2592	backend_fd = -1;
1774	sig_pending = 0;	2593	sig_pending = 0;
1775	#if EV_ASYNC_ENABLE	2594	#if EV_ASYNC_ENABLE
1776	async_pending = 0;	2595	async_pending = 0;
1777	#endif	2596	#endif
		2597	pipe_write_skipped = 0;
		2598	pipe_write_wanted = 0;
		2599	evpipe [0] = -1;
		2600	evpipe [1] = -1;
1778	#if EV_USE_INOTIFY	2601	#if EV_USE_INOTIFY
1779	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2602	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1780	#endif	2603	#endif
1781	#if EV_USE_SIGNALFD	2604	#if EV_USE_SIGNALFD
1782	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2605	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1783	#endif	2606	#endif
1784		2607
1785	if (!(flags & EVBACKEND_MASK))	2608	if (!(flags & EVBACKEND_MASK))
1786	flags |= ev_recommended_backends ();	2609	flags |= ev_recommended_backends ();
1787		2610
…		…
1812	#endif	2635	#endif
1813	}	2636	}
1814	}	2637	}
1815		2638
1816	/* free up a loop structure */	2639	/* free up a loop structure */
1817	void	2640	void ecb_cold
1818	ev_loop_destroy (EV_P)	2641	ev_loop_destroy (EV_P)
1819	{	2642	{
1820	int i;	2643	int i;
1821		2644
1822	#if EV_MULTIPLICITY	2645	#if EV_MULTIPLICITY
…		…
1833	EV_INVOKE_PENDING;	2656	EV_INVOKE_PENDING;
1834	}	2657	}
1835	#endif	2658	#endif
1836		2659
1837	#if EV_CHILD_ENABLE	2660	#if EV_CHILD_ENABLE
1838	if (ev_is_active (&childev))	2661	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1839	{	2662	{
1840	ev_ref (EV_A); /* child watcher */	2663	ev_ref (EV_A); /* child watcher */
1841	ev_signal_stop (EV_A_ &childev);	2664	ev_signal_stop (EV_A_ &childev);
1842	}	2665	}
1843	#endif	2666	#endif
…		…
1845	if (ev_is_active (&pipe_w))	2668	if (ev_is_active (&pipe_w))
1846	{	2669	{
1847	/*ev_ref (EV_A);*/	2670	/*ev_ref (EV_A);*/
1848	/*ev_io_stop (EV_A_ &pipe_w);*/	2671	/*ev_io_stop (EV_A_ &pipe_w);*/
1849		2672
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]);	2673	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1858	EV_WIN32_CLOSE_FD (evpipe [1]);	2674	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1859	}
1860	}	2675	}
1861		2676
1862	#if EV_USE_SIGNALFD	2677	#if EV_USE_SIGNALFD
1863	if (ev_is_active (&sigfd_w))	2678	if (ev_is_active (&sigfd_w))
1864	close (sigfd);	2679	close (sigfd);
…		…
1950	#endif	2765	#endif
1951	#if EV_USE_INOTIFY	2766	#if EV_USE_INOTIFY
1952	infy_fork (EV_A);	2767	infy_fork (EV_A);
1953	#endif	2768	#endif
1954		2769
		2770	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1955	if (ev_is_active (&pipe_w))	2771	if (ev_is_active (&pipe_w))
1956	{	2772	{
1957	/* this "locks" the handlers against writing to the pipe */	2773	/* 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		2774
1964	ev_ref (EV_A);	2775	ev_ref (EV_A);
1965	ev_io_stop (EV_A_ &pipe_w);	2776	ev_io_stop (EV_A_ &pipe_w);
1966		2777
1967	#if EV_USE_EVENTFD
1968	if (evfd >= 0)
1969	close (evfd);
1970	#endif
1971
1972	if (evpipe [0] >= 0)	2778	if (evpipe [0] >= 0)
1973	{
1974	EV_WIN32_CLOSE_FD (evpipe [0]);	2779	EV_WIN32_CLOSE_FD (evpipe [0]);
1975	EV_WIN32_CLOSE_FD (evpipe [1]);
1976	}
1977		2780
1978	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1979	evpipe_init (EV_A);	2781	evpipe_init (EV_A);
1980	/* now iterate over everything, in case we missed something */	2782	/* iterate over everything, in case we missed something before */
1981	pipecb (EV_A_ &pipe_w, EV_READ);	2783	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1982	#endif
1983	}	2784	}
		2785	#endif
1984		2786
1985	postfork = 0;	2787	postfork = 0;
1986	}	2788	}
1987		2789
1988	#if EV_MULTIPLICITY	2790	#if EV_MULTIPLICITY
1989		2791
1990	struct ev_loop *	2792	struct ev_loop * ecb_cold
1991	ev_loop_new (unsigned int flags)	2793	ev_loop_new (unsigned int flags) EV_THROW
1992	{	2794	{
1993	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2795	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1994		2796
1995	memset (EV_A, 0, sizeof (struct ev_loop));	2797	memset (EV_A, 0, sizeof (struct ev_loop));
1996	loop_init (EV_A_ flags);	2798	loop_init (EV_A_ flags);
…		…
2003	}	2805	}
2004		2806
2005	#endif /* multiplicity */	2807	#endif /* multiplicity */
2006		2808
2007	#if EV_VERIFY	2809	#if EV_VERIFY
2008	static void noinline	2810	static void noinline ecb_cold
2009	verify_watcher (EV_P_ W w)	2811	verify_watcher (EV_P_ W w)
2010	{	2812	{
2011	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2813	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2012		2814
2013	if (w->pending)	2815	if (w->pending)
2014	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2816	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2015	}	2817	}
2016		2818
2017	static void noinline	2819	static void noinline ecb_cold
2018	verify_heap (EV_P_ ANHE *heap, int N)	2820	verify_heap (EV_P_ ANHE *heap, int N)
2019	{	2821	{
2020	int i;	2822	int i;
2021		2823
2022	for (i = HEAP0; i < N + HEAP0; ++i)	2824	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2027		2829
2028	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2830	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2029	}	2831	}
2030	}	2832	}
2031		2833
2032	static void noinline	2834	static void noinline ecb_cold
2033	array_verify (EV_P_ W *ws, int cnt)	2835	array_verify (EV_P_ W *ws, int cnt)
2034	{	2836	{
2035	while (cnt--)	2837	while (cnt--)
2036	{	2838	{
2037	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2839	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2039	}	2841	}
2040	}	2842	}
2041	#endif	2843	#endif
2042		2844
2043	#if EV_FEATURE_API	2845	#if EV_FEATURE_API
2044	void	2846	void ecb_cold
2045	ev_verify (EV_P)	2847	ev_verify (EV_P) EV_THROW
2046	{	2848	{
2047	#if EV_VERIFY	2849	#if EV_VERIFY
2048	int i;	2850	int i;
2049	WL w;	2851	WL w, w2;
2050		2852
2051	assert (activecnt >= -1);	2853	assert (activecnt >= -1);
2052		2854
2053	assert (fdchangemax >= fdchangecnt);	2855	assert (fdchangemax >= fdchangecnt);
2054	for (i = 0; i < fdchangecnt; ++i)	2856	for (i = 0; i < fdchangecnt; ++i)
2055	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2857	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2056		2858
2057	assert (anfdmax >= 0);	2859	assert (anfdmax >= 0);
2058	for (i = 0; i < anfdmax; ++i)	2860	for (i = 0; i < anfdmax; ++i)
		2861	{
		2862	int j = 0;
		2863
2059	for (w = anfds [i].head; w; w = w->next)	2864	for (w = w2 = anfds [i].head; w; w = w->next)
2060	{	2865	{
2061	verify_watcher (EV_A_ (W)w);	2866	verify_watcher (EV_A_ (W)w);
		2867
		2868	if (j++ & 1)
		2869	{
		2870	assert (("libev: io watcher list contains a loop", w != w2));
		2871	w2 = w2->next;
		2872	}
		2873
2062	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2874	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));	2875	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2064	}	2876	}
		2877	}
2065		2878
2066	assert (timermax >= timercnt);	2879	assert (timermax >= timercnt);
2067	verify_heap (EV_A_ timers, timercnt);	2880	verify_heap (EV_A_ timers, timercnt);
2068		2881
2069	#if EV_PERIODIC_ENABLE	2882	#if EV_PERIODIC_ENABLE
…		…
2115	#endif	2928	#endif
2116	}	2929	}
2117	#endif	2930	#endif
2118		2931
2119	#if EV_MULTIPLICITY	2932	#if EV_MULTIPLICITY
2120	struct ev_loop *	2933	struct ev_loop * ecb_cold
2121	#else	2934	#else
2122	int	2935	int
2123	#endif	2936	#endif
2124	ev_default_loop (unsigned int flags)	2937	ev_default_loop (unsigned int flags) EV_THROW
2125	{	2938	{
2126	if (!ev_default_loop_ptr)	2939	if (!ev_default_loop_ptr)
2127	{	2940	{
2128	#if EV_MULTIPLICITY	2941	#if EV_MULTIPLICITY
2129	EV_P = ev_default_loop_ptr = &default_loop_struct;	2942	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2148		2961
2149	return ev_default_loop_ptr;	2962	return ev_default_loop_ptr;
2150	}	2963	}
2151		2964
2152	void	2965	void
2153	ev_loop_fork (EV_P)	2966	ev_loop_fork (EV_P) EV_THROW
2154	{	2967	{
2155	postfork = 1; /* must be in line with ev_default_fork */	2968	postfork = 1;
2156	}	2969	}
2157		2970
2158	/*****************************************************************************/	2971	/*****************************************************************************/
2159		2972
2160	void	2973	void
…		…
2162	{	2975	{
2163	EV_CB_INVOKE ((W)w, revents);	2976	EV_CB_INVOKE ((W)w, revents);
2164	}	2977	}
2165		2978
2166	unsigned int	2979	unsigned int
2167	ev_pending_count (EV_P)	2980	ev_pending_count (EV_P) EV_THROW
2168	{	2981	{
2169	int pri;	2982	int pri;
2170	unsigned int count = 0;	2983	unsigned int count = 0;
2171		2984
2172	for (pri = NUMPRI; pri--; )	2985	for (pri = NUMPRI; pri--; )
…		…
2176	}	2989	}
2177		2990
2178	void noinline	2991	void noinline
2179	ev_invoke_pending (EV_P)	2992	ev_invoke_pending (EV_P)
2180	{	2993	{
2181	int pri;	2994	pendingpri = NUMPRI;
2182		2995
2183	for (pri = NUMPRI; pri--; )	2996	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2997	{
		2998	--pendingpri;
		2999
2184	while (pendingcnt [pri])	3000	while (pendingcnt [pendingpri])
2185	{	3001	{
2186	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	3002	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2187		3003
2188	p->w->pending = 0;	3004	p->w->pending = 0;
2189	EV_CB_INVOKE (p->w, p->events);	3005	EV_CB_INVOKE (p->w, p->events);
2190	EV_FREQUENT_CHECK;	3006	EV_FREQUENT_CHECK;
2191	}	3007	}
		3008	}
2192	}	3009	}
2193		3010
2194	#if EV_IDLE_ENABLE	3011	#if EV_IDLE_ENABLE
2195	/* make idle watchers pending. this handles the "call-idle */	3012	/* make idle watchers pending. this handles the "call-idle */
2196	/* only when higher priorities are idle" logic */	3013	/* only when higher priorities are idle" logic */
…		…
2286	{	3103	{
2287	EV_FREQUENT_CHECK;	3104	EV_FREQUENT_CHECK;
2288		3105
2289	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3106	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2290	{	3107	{
2291	int feed_count = 0;
2292
2293	do	3108	do
2294	{	3109	{
2295	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3110	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2296		3111
2297	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3112	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
2324	}	3139	}
2325	}	3140	}
2326		3141
2327	/* simply recalculate all periodics */	3142	/* simply recalculate all periodics */
2328	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3143	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2329	static void noinline	3144	static void noinline ecb_cold
2330	periodics_reschedule (EV_P)	3145	periodics_reschedule (EV_P)
2331	{	3146	{
2332	int i;	3147	int i;
2333		3148
2334	/* adjust periodics after time jump */	3149	/* adjust periodics after time jump */
…		…
2347	reheap (periodics, periodiccnt);	3162	reheap (periodics, periodiccnt);
2348	}	3163	}
2349	#endif	3164	#endif
2350		3165
2351	/* adjust all timers by a given offset */	3166	/* adjust all timers by a given offset */
2352	static void noinline	3167	static void noinline ecb_cold
2353	timers_reschedule (EV_P_ ev_tstamp adjust)	3168	timers_reschedule (EV_P_ ev_tstamp adjust)
2354	{	3169	{
2355	int i;	3170	int i;
2356		3171
2357	for (i = 0; i < timercnt; ++i)	3172	for (i = 0; i < timercnt; ++i)
…		…
2431		3246
2432	mn_now = ev_rt_now;	3247	mn_now = ev_rt_now;
2433	}	3248	}
2434	}	3249	}
2435		3250
2436	void	3251	int
2437	ev_run (EV_P_ int flags)	3252	ev_run (EV_P_ int flags)
2438	{	3253	{
2439	#if EV_FEATURE_API	3254	#if EV_FEATURE_API
2440	++loop_depth;	3255	++loop_depth;
2441	#endif	3256	#endif
…		…
2499	ev_tstamp prev_mn_now = mn_now;	3314	ev_tstamp prev_mn_now = mn_now;
2500		3315
2501	/* update time to cancel out callback processing overhead */	3316	/* update time to cancel out callback processing overhead */
2502	time_update (EV_A_ 1e100);	3317	time_update (EV_A_ 1e100);
2503		3318
		3319	/* from now on, we want a pipe-wake-up */
		3320	pipe_write_wanted = 1;
		3321
		3322	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3323
2504	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))	3324	if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2505	{	3325	{
2506	waittime = MAX_BLOCKTIME;	3326	waittime = MAX_BLOCKTIME;
2507		3327
2508	if (timercnt)	3328	if (timercnt)
2509	{	3329	{
…		…
2549	#endif	3369	#endif
2550	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3370	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2551	backend_poll (EV_A_ waittime);	3371	backend_poll (EV_A_ waittime);
2552	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3372	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2553		3373
		3374	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
		3375
		3376	ECB_MEMORY_FENCE_ACQUIRE;
		3377	if (pipe_write_skipped)
		3378	{
		3379	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
		3380	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
		3381	}
		3382
		3383
2554	/* update ev_rt_now, do magic */	3384	/* update ev_rt_now, do magic */
2555	time_update (EV_A_ waittime + sleeptime);	3385	time_update (EV_A_ waittime + sleeptime);
2556	}	3386	}
2557		3387
2558	/* queue pending timers and reschedule them */	3388	/* queue pending timers and reschedule them */
…		…
2584	loop_done = EVBREAK_CANCEL;	3414	loop_done = EVBREAK_CANCEL;
2585		3415
2586	#if EV_FEATURE_API	3416	#if EV_FEATURE_API
2587	--loop_depth;	3417	--loop_depth;
2588	#endif	3418	#endif
		3419
		3420	return activecnt;
2589	}	3421	}
2590		3422
2591	void	3423	void
2592	ev_break (EV_P_ int how)	3424	ev_break (EV_P_ int how) EV_THROW
2593	{	3425	{
2594	loop_done = how;	3426	loop_done = how;
2595	}	3427	}
2596		3428
2597	void	3429	void
2598	ev_ref (EV_P)	3430	ev_ref (EV_P) EV_THROW
2599	{	3431	{
2600	++activecnt;	3432	++activecnt;
2601	}	3433	}
2602		3434
2603	void	3435	void
2604	ev_unref (EV_P)	3436	ev_unref (EV_P) EV_THROW
2605	{	3437	{
2606	--activecnt;	3438	--activecnt;
2607	}	3439	}
2608		3440
2609	void	3441	void
2610	ev_now_update (EV_P)	3442	ev_now_update (EV_P) EV_THROW
2611	{	3443	{
2612	time_update (EV_A_ 1e100);	3444	time_update (EV_A_ 1e100);
2613	}	3445	}
2614		3446
2615	void	3447	void
2616	ev_suspend (EV_P)	3448	ev_suspend (EV_P) EV_THROW
2617	{	3449	{
2618	ev_now_update (EV_A);	3450	ev_now_update (EV_A);
2619	}	3451	}
2620		3452
2621	void	3453	void
2622	ev_resume (EV_P)	3454	ev_resume (EV_P) EV_THROW
2623	{	3455	{
2624	ev_tstamp mn_prev = mn_now;	3456	ev_tstamp mn_prev = mn_now;
2625		3457
2626	ev_now_update (EV_A);	3458	ev_now_update (EV_A);
2627	timers_reschedule (EV_A_ mn_now - mn_prev);	3459	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
2666	w->pending = 0;	3498	w->pending = 0;
2667	}	3499	}
2668	}	3500	}
2669		3501
2670	int	3502	int
2671	ev_clear_pending (EV_P_ void *w)	3503	ev_clear_pending (EV_P_ void *w) EV_THROW
2672	{	3504	{
2673	W w_ = (W)w;	3505	W w_ = (W)w;
2674	int pending = w_->pending;	3506	int pending = w_->pending;
2675		3507
2676	if (expect_true (pending))	3508	if (expect_true (pending))
…		…
2709	}	3541	}
2710		3542
2711	/*****************************************************************************/	3543	/*****************************************************************************/
2712		3544
2713	void noinline	3545	void noinline
2714	ev_io_start (EV_P_ ev_io *w)	3546	ev_io_start (EV_P_ ev_io *w) EV_THROW
2715	{	3547	{
2716	int fd = w->fd;	3548	int fd = w->fd;
2717		3549
2718	if (expect_false (ev_is_active (w)))	3550	if (expect_false (ev_is_active (w)))
2719	return;	3551	return;
…		…
2725		3557
2726	ev_start (EV_A_ (W)w, 1);	3558	ev_start (EV_A_ (W)w, 1);
2727	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3559	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2728	wlist_add (&anfds[fd].head, (WL)w);	3560	wlist_add (&anfds[fd].head, (WL)w);
2729		3561
		3562	/* common bug, apparently */
		3563	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3564
2730	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3565	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2731	w->events &= ~EV__IOFDSET;	3566	w->events &= ~EV__IOFDSET;
2732		3567
2733	EV_FREQUENT_CHECK;	3568	EV_FREQUENT_CHECK;
2734	}	3569	}
2735		3570
2736	void noinline	3571	void noinline
2737	ev_io_stop (EV_P_ ev_io *w)	3572	ev_io_stop (EV_P_ ev_io *w) EV_THROW
2738	{	3573	{
2739	clear_pending (EV_A_ (W)w);	3574	clear_pending (EV_A_ (W)w);
2740	if (expect_false (!ev_is_active (w)))	3575	if (expect_false (!ev_is_active (w)))
2741	return;	3576	return;
2742		3577
…		…
2751		3586
2752	EV_FREQUENT_CHECK;	3587	EV_FREQUENT_CHECK;
2753	}	3588	}
2754		3589
2755	void noinline	3590	void noinline
2756	ev_timer_start (EV_P_ ev_timer *w)	3591	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2757	{	3592	{
2758	if (expect_false (ev_is_active (w)))	3593	if (expect_false (ev_is_active (w)))
2759	return;	3594	return;
2760		3595
2761	ev_at (w) += mn_now;	3596	ev_at (w) += mn_now;
…		…
2775		3610
2776	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3611	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2777	}	3612	}
2778		3613
2779	void noinline	3614	void noinline
2780	ev_timer_stop (EV_P_ ev_timer *w)	3615	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2781	{	3616	{
2782	clear_pending (EV_A_ (W)w);	3617	clear_pending (EV_A_ (W)w);
2783	if (expect_false (!ev_is_active (w)))	3618	if (expect_false (!ev_is_active (w)))
2784	return;	3619	return;
2785		3620
…		…
2805		3640
2806	EV_FREQUENT_CHECK;	3641	EV_FREQUENT_CHECK;
2807	}	3642	}
2808		3643
2809	void noinline	3644	void noinline
2810	ev_timer_again (EV_P_ ev_timer *w)	3645	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2811	{	3646	{
2812	EV_FREQUENT_CHECK;	3647	EV_FREQUENT_CHECK;
		3648
		3649	clear_pending (EV_A_ (W)w);
2813		3650
2814	if (ev_is_active (w))	3651	if (ev_is_active (w))
2815	{	3652	{
2816	if (w->repeat)	3653	if (w->repeat)
2817	{	3654	{
…		…
2830		3667
2831	EV_FREQUENT_CHECK;	3668	EV_FREQUENT_CHECK;
2832	}	3669	}
2833		3670
2834	ev_tstamp	3671	ev_tstamp
2835	ev_timer_remaining (EV_P_ ev_timer *w)	3672	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2836	{	3673	{
2837	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3674	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2838	}	3675	}
2839		3676
2840	#if EV_PERIODIC_ENABLE	3677	#if EV_PERIODIC_ENABLE
2841	void noinline	3678	void noinline
2842	ev_periodic_start (EV_P_ ev_periodic *w)	3679	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2843	{	3680	{
2844	if (expect_false (ev_is_active (w)))	3681	if (expect_false (ev_is_active (w)))
2845	return;	3682	return;
2846		3683
2847	if (w->reschedule_cb)	3684	if (w->reschedule_cb)
…		…
2867		3704
2868	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3705	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2869	}	3706	}
2870		3707
2871	void noinline	3708	void noinline
2872	ev_periodic_stop (EV_P_ ev_periodic *w)	3709	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2873	{	3710	{
2874	clear_pending (EV_A_ (W)w);	3711	clear_pending (EV_A_ (W)w);
2875	if (expect_false (!ev_is_active (w)))	3712	if (expect_false (!ev_is_active (w)))
2876	return;	3713	return;
2877		3714
…		…
2895		3732
2896	EV_FREQUENT_CHECK;	3733	EV_FREQUENT_CHECK;
2897	}	3734	}
2898		3735
2899	void noinline	3736	void noinline
2900	ev_periodic_again (EV_P_ ev_periodic *w)	3737	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2901	{	3738	{
2902	/* TODO: use adjustheap and recalculation */	3739	/* TODO: use adjustheap and recalculation */
2903	ev_periodic_stop (EV_A_ w);	3740	ev_periodic_stop (EV_A_ w);
2904	ev_periodic_start (EV_A_ w);	3741	ev_periodic_start (EV_A_ w);
2905	}	3742	}
…		…
2910	#endif	3747	#endif
2911		3748
2912	#if EV_SIGNAL_ENABLE	3749	#if EV_SIGNAL_ENABLE
2913		3750
2914	void noinline	3751	void noinline
2915	ev_signal_start (EV_P_ ev_signal *w)	3752	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2916	{	3753	{
2917	if (expect_false (ev_is_active (w)))	3754	if (expect_false (ev_is_active (w)))
2918	return;	3755	return;
2919		3756
2920	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3757	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
2922	#if EV_MULTIPLICITY	3759	#if EV_MULTIPLICITY
2923	assert (("libev: a signal must not be attached to two different loops",	3760	assert (("libev: a signal must not be attached to two different loops",
2924	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3761	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2925		3762
2926	signals [w->signum - 1].loop = EV_A;	3763	signals [w->signum - 1].loop = EV_A;
		3764	ECB_MEMORY_FENCE_RELEASE;
2927	#endif	3765	#endif
2928		3766
2929	EV_FREQUENT_CHECK;	3767	EV_FREQUENT_CHECK;
2930		3768
2931	#if EV_USE_SIGNALFD	3769	#if EV_USE_SIGNALFD
…		…
2991		3829
2992	EV_FREQUENT_CHECK;	3830	EV_FREQUENT_CHECK;
2993	}	3831	}
2994		3832
2995	void noinline	3833	void noinline
2996	ev_signal_stop (EV_P_ ev_signal *w)	3834	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2997	{	3835	{
2998	clear_pending (EV_A_ (W)w);	3836	clear_pending (EV_A_ (W)w);
2999	if (expect_false (!ev_is_active (w)))	3837	if (expect_false (!ev_is_active (w)))
3000	return;	3838	return;
3001		3839
…		…
3032	#endif	3870	#endif
3033		3871
3034	#if EV_CHILD_ENABLE	3872	#if EV_CHILD_ENABLE
3035		3873
3036	void	3874	void
3037	ev_child_start (EV_P_ ev_child *w)	3875	ev_child_start (EV_P_ ev_child *w) EV_THROW
3038	{	3876	{
3039	#if EV_MULTIPLICITY	3877	#if EV_MULTIPLICITY
3040	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3878	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3041	#endif	3879	#endif
3042	if (expect_false (ev_is_active (w)))	3880	if (expect_false (ev_is_active (w)))
…		…
3049		3887
3050	EV_FREQUENT_CHECK;	3888	EV_FREQUENT_CHECK;
3051	}	3889	}
3052		3890
3053	void	3891	void
3054	ev_child_stop (EV_P_ ev_child *w)	3892	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3055	{	3893	{
3056	clear_pending (EV_A_ (W)w);	3894	clear_pending (EV_A_ (W)w);
3057	if (expect_false (!ev_is_active (w)))	3895	if (expect_false (!ev_is_active (w)))
3058	return;	3896	return;
3059		3897
…		…
3086	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3924	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3087		3925
3088	static void noinline	3926	static void noinline
3089	infy_add (EV_P_ ev_stat *w)	3927	infy_add (EV_P_ ev_stat *w)
3090	{	3928	{
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);	3929	w->wd = inotify_add_watch (fs_fd, w->path,
		3930	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3931	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3932	| IN_DONT_FOLLOW | IN_MASK_ADD);
3092		3933
3093	if (w->wd >= 0)	3934	if (w->wd >= 0)
3094	{	3935	{
3095	struct statfs sfs;	3936	struct statfs sfs;
3096		3937
…		…
3100		3941
3101	if (!fs_2625)	3942	if (!fs_2625)
3102	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3943	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3103	else if (!statfs (w->path, &sfs)	3944	else if (!statfs (w->path, &sfs)
3104	&& (sfs.f_type == 0x1373 /* devfs */	3945	&& (sfs.f_type == 0x1373 /* devfs */
		3946	|| sfs.f_type == 0x4006 /* fat */
		3947	|| sfs.f_type == 0x4d44 /* msdos */
3105	|| sfs.f_type == 0xEF53 /* ext2/3 */	3948	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3949	|| sfs.f_type == 0x72b6 /* jffs2 */
		3950	|| sfs.f_type == 0x858458f6 /* ramfs */
		3951	|| sfs.f_type == 0x5346544e /* ntfs */
3106	|| sfs.f_type == 0x3153464a /* jfs */	3952	|| sfs.f_type == 0x3153464a /* jfs */
		3953	|| sfs.f_type == 0x9123683e /* btrfs */
3107	|| sfs.f_type == 0x52654973 /* reiser3 */	3954	|| sfs.f_type == 0x52654973 /* reiser3 */
3108	|| sfs.f_type == 0x01021994 /* tempfs */	3955	|| sfs.f_type == 0x01021994 /* tmpfs */
3109	|| sfs.f_type == 0x58465342 /* xfs */))	3956	|| sfs.f_type == 0x58465342 /* xfs */))
3110	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3957	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3111	else	3958	else
3112	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3959	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3113	}	3960	}
…		…
3211	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4058	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3212	ofs += sizeof (struct inotify_event) + ev->len;	4059	ofs += sizeof (struct inotify_event) + ev->len;
3213	}	4060	}
3214	}	4061	}
3215		4062
3216	inline_size void	4063	inline_size void ecb_cold
3217	ev_check_2625 (EV_P)	4064	ev_check_2625 (EV_P)
3218	{	4065	{
3219	/* kernels < 2.6.25 are borked	4066	/* kernels < 2.6.25 are borked
3220	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4067	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3221	*/	4068	*/
…		…
3226	}	4073	}
3227		4074
3228	inline_size int	4075	inline_size int
3229	infy_newfd (void)	4076	infy_newfd (void)
3230	{	4077	{
3231	#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)	4078	#if defined IN_CLOEXEC && defined IN_NONBLOCK
3232	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);	4079	int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3233	if (fd >= 0)	4080	if (fd >= 0)
3234	return fd;	4081	return fd;
3235	#endif	4082	#endif
3236	return inotify_init ();	4083	return inotify_init ();
…		…
3311	#else	4158	#else
3312	# define EV_LSTAT(p,b) lstat (p, b)	4159	# define EV_LSTAT(p,b) lstat (p, b)
3313	#endif	4160	#endif
3314		4161
3315	void	4162	void
3316	ev_stat_stat (EV_P_ ev_stat *w)	4163	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3317	{	4164	{
3318	if (lstat (w->path, &w->attr) < 0)	4165	if (lstat (w->path, &w->attr) < 0)
3319	w->attr.st_nlink = 0;	4166	w->attr.st_nlink = 0;
3320	else if (!w->attr.st_nlink)	4167	else if (!w->attr.st_nlink)
3321	w->attr.st_nlink = 1;	4168	w->attr.st_nlink = 1;
…		…
3360	ev_feed_event (EV_A_ w, EV_STAT);	4207	ev_feed_event (EV_A_ w, EV_STAT);
3361	}	4208	}
3362	}	4209	}
3363		4210
3364	void	4211	void
3365	ev_stat_start (EV_P_ ev_stat *w)	4212	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3366	{	4213	{
3367	if (expect_false (ev_is_active (w)))	4214	if (expect_false (ev_is_active (w)))
3368	return;	4215	return;
3369		4216
3370	ev_stat_stat (EV_A_ w);	4217	ev_stat_stat (EV_A_ w);
…		…
3391		4238
3392	EV_FREQUENT_CHECK;	4239	EV_FREQUENT_CHECK;
3393	}	4240	}
3394		4241
3395	void	4242	void
3396	ev_stat_stop (EV_P_ ev_stat *w)	4243	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3397	{	4244	{
3398	clear_pending (EV_A_ (W)w);	4245	clear_pending (EV_A_ (W)w);
3399	if (expect_false (!ev_is_active (w)))	4246	if (expect_false (!ev_is_active (w)))
3400	return;	4247	return;
3401		4248
…		…
3417	}	4264	}
3418	#endif	4265	#endif
3419		4266
3420	#if EV_IDLE_ENABLE	4267	#if EV_IDLE_ENABLE
3421	void	4268	void
3422	ev_idle_start (EV_P_ ev_idle *w)	4269	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3423	{	4270	{
3424	if (expect_false (ev_is_active (w)))	4271	if (expect_false (ev_is_active (w)))
3425	return;	4272	return;
3426		4273
3427	pri_adjust (EV_A_ (W)w);	4274	pri_adjust (EV_A_ (W)w);
…		…
3440		4287
3441	EV_FREQUENT_CHECK;	4288	EV_FREQUENT_CHECK;
3442	}	4289	}
3443		4290
3444	void	4291	void
3445	ev_idle_stop (EV_P_ ev_idle *w)	4292	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3446	{	4293	{
3447	clear_pending (EV_A_ (W)w);	4294	clear_pending (EV_A_ (W)w);
3448	if (expect_false (!ev_is_active (w)))	4295	if (expect_false (!ev_is_active (w)))
3449	return;	4296	return;
3450		4297
…		…
3464	}	4311	}
3465	#endif	4312	#endif
3466		4313
3467	#if EV_PREPARE_ENABLE	4314	#if EV_PREPARE_ENABLE
3468	void	4315	void
3469	ev_prepare_start (EV_P_ ev_prepare *w)	4316	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3470	{	4317	{
3471	if (expect_false (ev_is_active (w)))	4318	if (expect_false (ev_is_active (w)))
3472	return;	4319	return;
3473		4320
3474	EV_FREQUENT_CHECK;	4321	EV_FREQUENT_CHECK;
…		…
3479		4326
3480	EV_FREQUENT_CHECK;	4327	EV_FREQUENT_CHECK;
3481	}	4328	}
3482		4329
3483	void	4330	void
3484	ev_prepare_stop (EV_P_ ev_prepare *w)	4331	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3485	{	4332	{
3486	clear_pending (EV_A_ (W)w);	4333	clear_pending (EV_A_ (W)w);
3487	if (expect_false (!ev_is_active (w)))	4334	if (expect_false (!ev_is_active (w)))
3488	return;	4335	return;
3489		4336
…		…
3502	}	4349	}
3503	#endif	4350	#endif
3504		4351
3505	#if EV_CHECK_ENABLE	4352	#if EV_CHECK_ENABLE
3506	void	4353	void
3507	ev_check_start (EV_P_ ev_check *w)	4354	ev_check_start (EV_P_ ev_check *w) EV_THROW
3508	{	4355	{
3509	if (expect_false (ev_is_active (w)))	4356	if (expect_false (ev_is_active (w)))
3510	return;	4357	return;
3511		4358
3512	EV_FREQUENT_CHECK;	4359	EV_FREQUENT_CHECK;
…		…
3517		4364
3518	EV_FREQUENT_CHECK;	4365	EV_FREQUENT_CHECK;
3519	}	4366	}
3520		4367
3521	void	4368	void
3522	ev_check_stop (EV_P_ ev_check *w)	4369	ev_check_stop (EV_P_ ev_check *w) EV_THROW
3523	{	4370	{
3524	clear_pending (EV_A_ (W)w);	4371	clear_pending (EV_A_ (W)w);
3525	if (expect_false (!ev_is_active (w)))	4372	if (expect_false (!ev_is_active (w)))
3526	return;	4373	return;
3527		4374
…		…
3540	}	4387	}
3541	#endif	4388	#endif
3542		4389
3543	#if EV_EMBED_ENABLE	4390	#if EV_EMBED_ENABLE
3544	void noinline	4391	void noinline
3545	ev_embed_sweep (EV_P_ ev_embed *w)	4392	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3546	{	4393	{
3547	ev_run (w->other, EVRUN_NOWAIT);	4394	ev_run (w->other, EVRUN_NOWAIT);
3548	}	4395	}
3549		4396
3550	static void	4397	static void
…		…
3598	ev_idle_stop (EV_A_ idle);	4445	ev_idle_stop (EV_A_ idle);
3599	}	4446	}
3600	#endif	4447	#endif
3601		4448
3602	void	4449	void
3603	ev_embed_start (EV_P_ ev_embed *w)	4450	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3604	{	4451	{
3605	if (expect_false (ev_is_active (w)))	4452	if (expect_false (ev_is_active (w)))
3606	return;	4453	return;
3607		4454
3608	{	4455	{
…		…
3629		4476
3630	EV_FREQUENT_CHECK;	4477	EV_FREQUENT_CHECK;
3631	}	4478	}
3632		4479
3633	void	4480	void
3634	ev_embed_stop (EV_P_ ev_embed *w)	4481	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3635	{	4482	{
3636	clear_pending (EV_A_ (W)w);	4483	clear_pending (EV_A_ (W)w);
3637	if (expect_false (!ev_is_active (w)))	4484	if (expect_false (!ev_is_active (w)))
3638	return;	4485	return;
3639		4486
…		…
3649	}	4496	}
3650	#endif	4497	#endif
3651		4498
3652	#if EV_FORK_ENABLE	4499	#if EV_FORK_ENABLE
3653	void	4500	void
3654	ev_fork_start (EV_P_ ev_fork *w)	4501	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3655	{	4502	{
3656	if (expect_false (ev_is_active (w)))	4503	if (expect_false (ev_is_active (w)))
3657	return;	4504	return;
3658		4505
3659	EV_FREQUENT_CHECK;	4506	EV_FREQUENT_CHECK;
…		…
3664		4511
3665	EV_FREQUENT_CHECK;	4512	EV_FREQUENT_CHECK;
3666	}	4513	}
3667		4514
3668	void	4515	void
3669	ev_fork_stop (EV_P_ ev_fork *w)	4516	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3670	{	4517	{
3671	clear_pending (EV_A_ (W)w);	4518	clear_pending (EV_A_ (W)w);
3672	if (expect_false (!ev_is_active (w)))	4519	if (expect_false (!ev_is_active (w)))
3673	return;	4520	return;
3674		4521
…		…
3687	}	4534	}
3688	#endif	4535	#endif
3689		4536
3690	#if EV_CLEANUP_ENABLE	4537	#if EV_CLEANUP_ENABLE
3691	void	4538	void
3692	ev_cleanup_start (EV_P_ ev_cleanup *w)	4539	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3693	{	4540	{
3694	if (expect_false (ev_is_active (w)))	4541	if (expect_false (ev_is_active (w)))
3695	return;	4542	return;
3696		4543
3697	EV_FREQUENT_CHECK;	4544	EV_FREQUENT_CHECK;
…		…
3704	ev_unref (EV_A);	4551	ev_unref (EV_A);
3705	EV_FREQUENT_CHECK;	4552	EV_FREQUENT_CHECK;
3706	}	4553	}
3707		4554
3708	void	4555	void
3709	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4556	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3710	{	4557	{
3711	clear_pending (EV_A_ (W)w);	4558	clear_pending (EV_A_ (W)w);
3712	if (expect_false (!ev_is_active (w)))	4559	if (expect_false (!ev_is_active (w)))
3713	return;	4560	return;
3714		4561
…		…
3728	}	4575	}
3729	#endif	4576	#endif
3730		4577
3731	#if EV_ASYNC_ENABLE	4578	#if EV_ASYNC_ENABLE
3732	void	4579	void
3733	ev_async_start (EV_P_ ev_async *w)	4580	ev_async_start (EV_P_ ev_async *w) EV_THROW
3734	{	4581	{
3735	if (expect_false (ev_is_active (w)))	4582	if (expect_false (ev_is_active (w)))
3736	return;	4583	return;
3737		4584
3738	w->sent = 0;	4585	w->sent = 0;
…		…
3747		4594
3748	EV_FREQUENT_CHECK;	4595	EV_FREQUENT_CHECK;
3749	}	4596	}
3750		4597
3751	void	4598	void
3752	ev_async_stop (EV_P_ ev_async *w)	4599	ev_async_stop (EV_P_ ev_async *w) EV_THROW
3753	{	4600	{
3754	clear_pending (EV_A_ (W)w);	4601	clear_pending (EV_A_ (W)w);
3755	if (expect_false (!ev_is_active (w)))	4602	if (expect_false (!ev_is_active (w)))
3756	return;	4603	return;
3757		4604
…		…
3768		4615
3769	EV_FREQUENT_CHECK;	4616	EV_FREQUENT_CHECK;
3770	}	4617	}
3771		4618
3772	void	4619	void
3773	ev_async_send (EV_P_ ev_async *w)	4620	ev_async_send (EV_P_ ev_async *w) EV_THROW
3774	{	4621	{
3775	w->sent = 1;	4622	w->sent = 1;
3776	evpipe_write (EV_A_ &async_pending);	4623	evpipe_write (EV_A_ &async_pending);
3777	}	4624	}
3778	#endif	4625	#endif
…		…
3815		4662
3816	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4663	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3817	}	4664	}
3818		4665
3819	void	4666	void
3820	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4667	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3821	{	4668	{
3822	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4669	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3823		4670
3824	if (expect_false (!once))	4671	if (expect_false (!once))
3825	{	4672	{
…		…
3846	}	4693	}
3847		4694
3848	/*****************************************************************************/	4695	/*****************************************************************************/
3849		4696
3850	#if EV_WALK_ENABLE	4697	#if EV_WALK_ENABLE
3851	void	4698	void ecb_cold
3852	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4699	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3853	{	4700	{
3854	int i, j;	4701	int i, j;
3855	ev_watcher_list *wl, *wn;	4702	ev_watcher_list *wl, *wn;
3856		4703
3857	if (types & (EV_IO | EV_EMBED))	4704	if (types & (EV_IO | EV_EMBED))
…		…
3900	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4747	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3901	#endif	4748	#endif
3902		4749
3903	#if EV_IDLE_ENABLE	4750	#if EV_IDLE_ENABLE
3904	if (types & EV_IDLE)	4751	if (types & EV_IDLE)
3905	for (j = NUMPRI; i--; )	4752	for (j = NUMPRI; j--; )
3906	for (i = idlecnt [j]; i--; )	4753	for (i = idlecnt [j]; i--; )
3907	cb (EV_A_ EV_IDLE, idles [j][i]);	4754	cb (EV_A_ EV_IDLE, idles [j][i]);
3908	#endif	4755	#endif
3909		4756
3910	#if EV_FORK_ENABLE	4757	#if EV_FORK_ENABLE
…		…
3963		4810
3964	#if EV_MULTIPLICITY	4811	#if EV_MULTIPLICITY
3965	#include "ev_wrap.h"	4812	#include "ev_wrap.h"
3966	#endif	4813	#endif
3967		4814
3968	EV_CPP(})
3969

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines