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Comparing libev/ev.c (file contents):
Revision 1.380 by root, Mon Jun 27 19:20:01 2011 UTC vs.
Revision 1.476 by root, Fri May 1 17:23:34 2015 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) 2007,2008,2009,2010,2011,2012,2013 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 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
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
188EV_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# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif 247#endif
241 248
242#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
244#endif 251#endif
245 252
246#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
247# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249# else 256# else
250# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
251# endif 258# endif
252#endif 259#endif
253 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
254#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 273# else
258# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
259# endif 275# endif
260#endif 276#endif
… …
347 363
348#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 366#endif
351 367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* 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. */ 385/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 387# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
360# else 392# else
… …
363# endif 395# endif
364#endif 396#endif
365 397
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 399
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 400#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
377#endif 403#endif
378 404
… …
386# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
387#endif 413#endif
388 414
389#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 418# include <sys/select.h>
393# endif 419# endif
394#endif 420#endif
395 421
396#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
403# endif 429# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 430#endif
409 431
410#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 434# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 487
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 488#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) 489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 490
469/* the following are taken from libecb */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ecb.h start */ 492/* ECB.H BEGIN */
493/*
494 * libecb - http://software.schmorp.de/pkg/libecb
495 *
496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved.
499 *
500 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met:
502 *
503 * 1. Redistributions of source code must retain the above copyright notice,
504 * this list of conditions and the following disclaimer.
505 *
506 * 2. Redistributions in binary form must reproduce the above copyright
507 * notice, this list of conditions and the following disclaimer in the
508 * documentation and/or other materials provided with the distribution.
509 *
510 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
511 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
512 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
513 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
514 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
531 */
532
533#ifndef ECB_H
534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004
538
539#ifdef _WIN32
540 typedef signed char int8_t;
541 typedef unsigned char uint8_t;
542 typedef signed short int16_t;
543 typedef unsigned short uint16_t;
544 typedef signed int int32_t;
545 typedef unsigned int uint32_t;
546 #if __GNUC__
547 typedef signed long long int64_t;
548 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t;
552 #endif
553 #ifdef _WIN64
554 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t;
557 #else
558 #define ECB_PTRSIZE 4
559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t;
561 #endif
562#else
563 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU
565 #define ECB_PTRSIZE 8
566 #else
567 #define ECB_PTRSIZE 4
568 #endif
569#endif
570
571#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573
574/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32
577 #define ECB_AMD64_X32 1
578 #else
579 #define ECB_AMD64 1
580 #endif
581#endif
471 582
472/* many compilers define _GNUC_ to some versions but then only implement 583/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions, 584 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers. 585 * causing enormous grief in return for some better fake benchmark numbers.
475 * or so. 586 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have 587 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place. 588 * an issue with that they should have done it right in the first place.
478 */ 589 */
479#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 590#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481 #define ECB_GCC_VERSION(major,minor) 0 591 #define ECB_GCC_VERSION(major,minor) 0
482 #else 592#else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 593 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
594#endif
595
596#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
597
598#if __clang__ && defined __has_builtin
599 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
600#else
601 #define ECB_CLANG_BUILTIN(x) 0
602#endif
603
604#if __clang__ && defined __has_extension
605 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
606#else
607 #define ECB_CLANG_EXTENSION(x) 0
608#endif
609
610#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L)
612
613#if ECB_CPP
614 #define ECB_C 0
615 #define ECB_STDC_VERSION 0
616#else
617 #define ECB_C 1
618 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif
620
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
623
624#if ECB_CPP
625 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END }
628#else
629 #define ECB_EXTERN_C extern
630 #define ECB_EXTERN_C_BEG
631 #define ECB_EXTERN_C_END
632#endif
633
634/*****************************************************************************/
635
636/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
637/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
638
639#if ECB_NO_THREADS
640 #define ECB_NO_SMP 1
641#endif
642
643#if ECB_NO_SMP
644 #define ECB_MEMORY_FENCE do { } while (0)
645#endif
646
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP
649 #include <builtins.h>
650#endif
651
652#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
654 #if __i386 || __i386__
655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
656 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
657 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
658 #elif ECB_GCC_AMD64
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
662 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
664 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
665 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
667 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
668 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
670 #elif __aarch64__
671 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
672 #elif (__sparc || __sparc__) && !__sparcv8
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
674 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
675 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
676 #elif defined __s390__ || defined __s390x__
677 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
678 #elif defined __mips__
679 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
680 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
681 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
682 #elif defined __alpha__
683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
684 #elif defined __hppa__
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
686 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
687 #elif defined __ia64__
688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
689 #elif defined __m68k__
690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
691 #elif defined __m88k__
692 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
693 #elif defined __sh__
694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
695 #endif
484 #endif 696 #endif
485#endif 697#endif
486 698
487#if __cplusplus 699#ifndef ECB_MEMORY_FENCE
700 #if ECB_GCC_VERSION(4,7)
701 /* see comment below (stdatomic.h) about the C11 memory model. */
702 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
703 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
704 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
705
706 #elif ECB_CLANG_EXTENSION(c_atomic)
707 /* see comment below (stdatomic.h) about the C11 memory model. */
708 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
709 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
710 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
711
712 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
713 #define ECB_MEMORY_FENCE __sync_synchronize ()
714 #elif _MSC_VER >= 1500 /* VC++ 2008 */
715 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
716 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
717 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
718 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
719 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
720 #elif _MSC_VER >= 1400 /* VC++ 2005 */
721 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
722 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
723 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
724 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
725 #elif defined _WIN32
726 #include <WinNT.h>
727 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
728 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
729 #include <mbarrier.h>
730 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
731 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
732 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
733 #elif __xlC__
734 #define ECB_MEMORY_FENCE __sync ()
735 #endif
736#endif
737
738#ifndef ECB_MEMORY_FENCE
739 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
740 /* we assume that these memory fences work on all variables/all memory accesses, */
741 /* not just C11 atomics and atomic accesses */
742 #include <stdatomic.h>
743 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
744 /* any fence other than seq_cst, which isn't very efficient for us. */
745 /* Why that is, we don't know - either the C11 memory model is quite useless */
746 /* for most usages, or gcc and clang have a bug */
747 /* I *currently* lean towards the latter, and inefficiently implement */
748 /* all three of ecb's fences as a seq_cst fence */
749 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
750 /* for all __atomic_thread_fence's except seq_cst */
751 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
752 #endif
753#endif
754
755#ifndef ECB_MEMORY_FENCE
756 #if !ECB_AVOID_PTHREADS
757 /*
758 * if you get undefined symbol references to pthread_mutex_lock,
759 * or failure to find pthread.h, then you should implement
760 * the ECB_MEMORY_FENCE operations for your cpu/compiler
761 * OR provide pthread.h and link against the posix thread library
762 * of your system.
763 */
764 #include <pthread.h>
765 #define ECB_NEEDS_PTHREADS 1
766 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
767
768 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
769 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
770 #endif
771#endif
772
773#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
774 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
775#endif
776
777#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
778 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
779#endif
780
781/*****************************************************************************/
782
783#if ECB_CPP
488 #define ecb_inline static inline 784 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5) 785#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__ 786 #define ecb_inline static __inline__
491#elif ECB_C99 787#elif ECB_C99
492 #define ecb_inline static inline 788 #define ecb_inline static inline
493#else 789#else
494 #define ecb_inline static 790 #define ecb_inline static
495#endif 791#endif
496 792
497#if ECB_GCC_VERSION(3,1) 793#if ECB_GCC_VERSION(3,3)
794 #define ecb_restrict __restrict__
795#elif ECB_C99
796 #define ecb_restrict restrict
797#else
798 #define ecb_restrict
799#endif
800
801typedef int ecb_bool;
802
803#define ECB_CONCAT_(a, b) a ## b
804#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
805#define ECB_STRINGIFY_(a) # a
806#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
807#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
808
809#define ecb_function_ ecb_inline
810
811#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
498 #define ecb_attribute(attrlist) __attribute__(attrlist) 812 #define ecb_attribute(attrlist) __attribute__ (attrlist)
813#else
814 #define ecb_attribute(attrlist)
815#endif
816
817#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
499 #define ecb_is_constant(expr) __builtin_constant_p (expr) 818 #define ecb_is_constant(expr) __builtin_constant_p (expr)
819#else
820 /* possible C11 impl for integral types
821 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
822 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
823
824 #define ecb_is_constant(expr) 0
825#endif
826
827#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
500 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 828 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
829#else
830 #define ecb_expect(expr,value) (expr)
831#endif
832
833#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
501 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 834 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
502#else 835#else
503 #define ecb_attribute(attrlist)
504 #define ecb_is_constant(expr) 0
505 #define ecb_expect(expr,value) (expr)
506 #define ecb_prefetch(addr,rw,locality) 836 #define ecb_prefetch(addr,rw,locality)
507#endif 837#endif
508 838
839/* no emulation for ecb_decltype */
840#if ECB_CPP11
841 // older implementations might have problems with decltype(x)::type, work around it
842 template<class T> struct ecb_decltype_t { typedef T type; };
843 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
844#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
845 #define ecb_decltype(x) __typeof__ (x)
846#endif
847
848#if _MSC_VER >= 1300
849 #define ecb_deprecated __declspec (deprecated)
850#else
851 #define ecb_deprecated ecb_attribute ((__deprecated__))
852#endif
853
854#if _MSC_VER >= 1500
855 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
856#elif ECB_GCC_VERSION(4,5)
857 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
858#else
859 #define ecb_deprecated_message(msg) ecb_deprecated
860#endif
861
862#if _MSC_VER >= 1400
863 #define ecb_noinline __declspec (noinline)
864#else
509#define ecb_noinline ecb_attribute ((__noinline__)) 865 #define ecb_noinline ecb_attribute ((__noinline__))
510#define ecb_noreturn ecb_attribute ((__noreturn__)) 866#endif
867
511#define ecb_unused ecb_attribute ((__unused__)) 868#define ecb_unused ecb_attribute ((__unused__))
512#define ecb_const ecb_attribute ((__const__)) 869#define ecb_const ecb_attribute ((__const__))
513#define ecb_pure ecb_attribute ((__pure__)) 870#define ecb_pure ecb_attribute ((__pure__))
871
872#if ECB_C11 || __IBMC_NORETURN
873 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
874 #define ecb_noreturn _Noreturn
875#elif ECB_CPP11
876 #define ecb_noreturn [[noreturn]]
877#elif _MSC_VER >= 1200
878 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
879 #define ecb_noreturn __declspec (noreturn)
880#else
881 #define ecb_noreturn ecb_attribute ((__noreturn__))
882#endif
514 883
515#if ECB_GCC_VERSION(4,3) 884#if ECB_GCC_VERSION(4,3)
516 #define ecb_artificial ecb_attribute ((__artificial__)) 885 #define ecb_artificial ecb_attribute ((__artificial__))
517 #define ecb_hot ecb_attribute ((__hot__)) 886 #define ecb_hot ecb_attribute ((__hot__))
518 #define ecb_cold ecb_attribute ((__cold__)) 887 #define ecb_cold ecb_attribute ((__cold__))
… …
525/* put around conditional expressions if you are very sure that the */ 894/* put around conditional expressions if you are very sure that the */
526/* expression is mostly true or mostly false. note that these return */ 895/* expression is mostly true or mostly false. note that these return */
527/* booleans, not the expression. */ 896/* booleans, not the expression. */
528#define ecb_expect_false(expr) ecb_expect (!!(expr), 0) 897#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
529#define ecb_expect_true(expr) ecb_expect (!!(expr), 1) 898#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530/* ecb.h end */ 899/* for compatibility to the rest of the world */
900#define ecb_likely(expr) ecb_expect_true (expr)
901#define ecb_unlikely(expr) ecb_expect_false (expr)
902
903/* count trailing zero bits and count # of one bits */
904#if ECB_GCC_VERSION(3,4) \
905 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
906 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
907 && ECB_CLANG_BUILTIN(__builtin_popcount))
908 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
909 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
910 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
911 #define ecb_ctz32(x) __builtin_ctz (x)
912 #define ecb_ctz64(x) __builtin_ctzll (x)
913 #define ecb_popcount32(x) __builtin_popcount (x)
914 /* no popcountll */
915#else
916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
917 ecb_function_ ecb_const int
918 ecb_ctz32 (uint32_t x)
919 {
920 int r = 0;
921
922 x &= ~x + 1; /* this isolates the lowest bit */
923
924#if ECB_branchless_on_i386
925 r += !!(x & 0xaaaaaaaa) << 0;
926 r += !!(x & 0xcccccccc) << 1;
927 r += !!(x & 0xf0f0f0f0) << 2;
928 r += !!(x & 0xff00ff00) << 3;
929 r += !!(x & 0xffff0000) << 4;
930#else
931 if (x & 0xaaaaaaaa) r += 1;
932 if (x & 0xcccccccc) r += 2;
933 if (x & 0xf0f0f0f0) r += 4;
934 if (x & 0xff00ff00) r += 8;
935 if (x & 0xffff0000) r += 16;
936#endif
937
938 return r;
939 }
940
941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
942 ecb_function_ ecb_const int
943 ecb_ctz64 (uint64_t x)
944 {
945 int shift = x & 0xffffffffU ? 0 : 32;
946 return ecb_ctz32 (x >> shift) + shift;
947 }
948
949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
950 ecb_function_ ecb_const int
951 ecb_popcount32 (uint32_t x)
952 {
953 x -= (x >> 1) & 0x55555555;
954 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
955 x = ((x >> 4) + x) & 0x0f0f0f0f;
956 x *= 0x01010101;
957
958 return x >> 24;
959 }
960
961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
963 {
964 int r = 0;
965
966 if (x >> 16) { x >>= 16; r += 16; }
967 if (x >> 8) { x >>= 8; r += 8; }
968 if (x >> 4) { x >>= 4; r += 4; }
969 if (x >> 2) { x >>= 2; r += 2; }
970 if (x >> 1) { r += 1; }
971
972 return r;
973 }
974
975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
977 {
978 int r = 0;
979
980 if (x >> 32) { x >>= 32; r += 32; }
981
982 return r + ecb_ld32 (x);
983 }
984#endif
985
986ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
987ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
988ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
989ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
990
991ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
992ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
993{
994 return ( (x * 0x0802U & 0x22110U)
995 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
996}
997
998ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
999ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
1000{
1001 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
1002 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
1003 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
1004 x = ( x >> 8 ) | ( x << 8);
1005
1006 return x;
1007}
1008
1009ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
1010ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
1011{
1012 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
1013 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
1014 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
1015 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
1016 x = ( x >> 16 ) | ( x << 16);
1017
1018 return x;
1019}
1020
1021/* popcount64 is only available on 64 bit cpus as gcc builtin */
1022/* so for this version we are lazy */
1023ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
1024ecb_function_ ecb_const int
1025ecb_popcount64 (uint64_t x)
1026{
1027 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
1028}
1029
1030ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
1031ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
1032ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
1033ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
1034ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
1035ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
1036ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
1037ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
1038
1039ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
1040ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
1041ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
1042ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
1043ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1044ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1045ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1046ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1047
1048#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1049 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1050 #define ecb_bswap16(x) __builtin_bswap16 (x)
1051 #else
1052 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1053 #endif
1054 #define ecb_bswap32(x) __builtin_bswap32 (x)
1055 #define ecb_bswap64(x) __builtin_bswap64 (x)
1056#elif _MSC_VER
1057 #include <stdlib.h>
1058 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1059 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1060 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1061#else
1062 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1063 ecb_function_ ecb_const uint16_t
1064 ecb_bswap16 (uint16_t x)
1065 {
1066 return ecb_rotl16 (x, 8);
1067 }
1068
1069 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1070 ecb_function_ ecb_const uint32_t
1071 ecb_bswap32 (uint32_t x)
1072 {
1073 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1074 }
1075
1076 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1077 ecb_function_ ecb_const uint64_t
1078 ecb_bswap64 (uint64_t x)
1079 {
1080 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1081 }
1082#endif
1083
1084#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1085 #define ecb_unreachable() __builtin_unreachable ()
1086#else
1087 /* this seems to work fine, but gcc always emits a warning for it :/ */
1088 ecb_inline ecb_noreturn void ecb_unreachable (void);
1089 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1090#endif
1091
1092/* try to tell the compiler that some condition is definitely true */
1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1094
1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
1096ecb_inline ecb_const unsigned char
1097ecb_byteorder_helper (void)
1098{
1099 /* the union code still generates code under pressure in gcc, */
1100 /* but less than using pointers, and always seems to */
1101 /* successfully return a constant. */
1102 /* the reason why we have this horrible preprocessor mess */
1103 /* is to avoid it in all cases, at least on common architectures */
1104 /* or when using a recent enough gcc version (>= 4.6) */
1105#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1106 return 0x44;
1107#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1108 return 0x44;
1109#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1110 return 0x11;
1111#else
1112 union
1113 {
1114 uint32_t i;
1115 uint8_t c;
1116 } u = { 0x11223344 };
1117 return u.c;
1118#endif
1119}
1120
1121ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1122ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1123ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1124ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1125
1126#if ECB_GCC_VERSION(3,0) || ECB_C99
1127 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1128#else
1129 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1130#endif
1131
1132#if ECB_CPP
1133 template<typename T>
1134 static inline T ecb_div_rd (T val, T div)
1135 {
1136 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1137 }
1138 template<typename T>
1139 static inline T ecb_div_ru (T val, T div)
1140 {
1141 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1142 }
1143#else
1144 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1145 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1146#endif
1147
1148#if ecb_cplusplus_does_not_suck
1149 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1150 template<typename T, int N>
1151 static inline int ecb_array_length (const T (&arr)[N])
1152 {
1153 return N;
1154 }
1155#else
1156 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1157#endif
1158
1159/*******************************************************************************/
1160/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1161
1162/* basically, everything uses "ieee pure-endian" floating point numbers */
1163/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1164#if 0 \
1165 || __i386 || __i386__ \
1166 || ECB_GCC_AMD64 \
1167 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1168 || defined __s390__ || defined __s390x__ \
1169 || defined __mips__ \
1170 || defined __alpha__ \
1171 || defined __hppa__ \
1172 || defined __ia64__ \
1173 || defined __m68k__ \
1174 || defined __m88k__ \
1175 || defined __sh__ \
1176 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1177 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1178 || defined __aarch64__
1179 #define ECB_STDFP 1
1180 #include <string.h> /* for memcpy */
1181#else
1182 #define ECB_STDFP 0
1183#endif
1184
1185#ifndef ECB_NO_LIBM
1186
1187 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1188
1189 /* only the oldest of old doesn't have this one. solaris. */
1190 #ifdef INFINITY
1191 #define ECB_INFINITY INFINITY
1192 #else
1193 #define ECB_INFINITY HUGE_VAL
1194 #endif
1195
1196 #ifdef NAN
1197 #define ECB_NAN NAN
1198 #else
1199 #define ECB_NAN ECB_INFINITY
1200 #endif
1201
1202 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1203 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1204 #define ecb_frexpf(x,e) frexpf ((x), (e))
1205 #else
1206 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1207 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1208 #endif
1209
1210 /* converts an ieee half/binary16 to a float */
1211 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1212 ecb_function_ ecb_const float
1213 ecb_binary16_to_float (uint16_t x)
1214 {
1215 int e = (x >> 10) & 0x1f;
1216 int m = x & 0x3ff;
1217 float r;
1218
1219 if (!e ) r = ecb_ldexpf (m , -24);
1220 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1221 else if (m ) r = ECB_NAN;
1222 else r = ECB_INFINITY;
1223
1224 return x & 0x8000 ? -r : r;
1225 }
1226
1227 /* convert a float to ieee single/binary32 */
1228 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1229 ecb_function_ ecb_const uint32_t
1230 ecb_float_to_binary32 (float x)
1231 {
1232 uint32_t r;
1233
1234 #if ECB_STDFP
1235 memcpy (&r, &x, 4);
1236 #else
1237 /* slow emulation, works for anything but -0 */
1238 uint32_t m;
1239 int e;
1240
1241 if (x == 0e0f ) return 0x00000000U;
1242 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1243 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1244 if (x != x ) return 0x7fbfffffU;
1245
1246 m = ecb_frexpf (x, &e) * 0x1000000U;
1247
1248 r = m & 0x80000000U;
1249
1250 if (r)
1251 m = -m;
1252
1253 if (e <= -126)
1254 {
1255 m &= 0xffffffU;
1256 m >>= (-125 - e);
1257 e = -126;
1258 }
1259
1260 r |= (e + 126) << 23;
1261 r |= m & 0x7fffffU;
1262 #endif
1263
1264 return r;
1265 }
1266
1267 /* converts an ieee single/binary32 to a float */
1268 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1269 ecb_function_ ecb_const float
1270 ecb_binary32_to_float (uint32_t x)
1271 {
1272 float r;
1273
1274 #if ECB_STDFP
1275 memcpy (&r, &x, 4);
1276 #else
1277 /* emulation, only works for normals and subnormals and +0 */
1278 int neg = x >> 31;
1279 int e = (x >> 23) & 0xffU;
1280
1281 x &= 0x7fffffU;
1282
1283 if (e)
1284 x |= 0x800000U;
1285 else
1286 e = 1;
1287
1288 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1289 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1290
1291 r = neg ? -r : r;
1292 #endif
1293
1294 return r;
1295 }
1296
1297 /* convert a double to ieee double/binary64 */
1298 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1299 ecb_function_ ecb_const uint64_t
1300 ecb_double_to_binary64 (double x)
1301 {
1302 uint64_t r;
1303
1304 #if ECB_STDFP
1305 memcpy (&r, &x, 8);
1306 #else
1307 /* slow emulation, works for anything but -0 */
1308 uint64_t m;
1309 int e;
1310
1311 if (x == 0e0 ) return 0x0000000000000000U;
1312 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1313 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1314 if (x != x ) return 0X7ff7ffffffffffffU;
1315
1316 m = frexp (x, &e) * 0x20000000000000U;
1317
1318 r = m & 0x8000000000000000;;
1319
1320 if (r)
1321 m = -m;
1322
1323 if (e <= -1022)
1324 {
1325 m &= 0x1fffffffffffffU;
1326 m >>= (-1021 - e);
1327 e = -1022;
1328 }
1329
1330 r |= ((uint64_t)(e + 1022)) << 52;
1331 r |= m & 0xfffffffffffffU;
1332 #endif
1333
1334 return r;
1335 }
1336
1337 /* converts an ieee double/binary64 to a double */
1338 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1339 ecb_function_ ecb_const double
1340 ecb_binary64_to_double (uint64_t x)
1341 {
1342 double r;
1343
1344 #if ECB_STDFP
1345 memcpy (&r, &x, 8);
1346 #else
1347 /* emulation, only works for normals and subnormals and +0 */
1348 int neg = x >> 63;
1349 int e = (x >> 52) & 0x7ffU;
1350
1351 x &= 0xfffffffffffffU;
1352
1353 if (e)
1354 x |= 0x10000000000000U;
1355 else
1356 e = 1;
1357
1358 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1359 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1360
1361 r = neg ? -r : r;
1362 #endif
1363
1364 return r;
1365 }
1366
1367#endif
1368
1369#endif
1370
1371/* ECB.H END */
1372
1373#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1374/* if your architecture doesn't need memory fences, e.g. because it is
1375 * single-cpu/core, or if you use libev in a project that doesn't use libev
1376 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1377 * libev, in which cases the memory fences become nops.
1378 * alternatively, you can remove this #error and link against libpthread,
1379 * which will then provide the memory fences.
1380 */
1381# error "memory fences not defined for your architecture, please report"
1382#endif
1383
1384#ifndef ECB_MEMORY_FENCE
1385# define ECB_MEMORY_FENCE do { } while (0)
1386# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1387# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1388#endif
531 1389
532#define expect_false(cond) ecb_expect_false (cond) 1390#define expect_false(cond) ecb_expect_false (cond)
533#define expect_true(cond) ecb_expect_true (cond) 1391#define expect_true(cond) ecb_expect_true (cond)
534#define noinline ecb_noinline 1392#define noinline ecb_noinline
535 1393
… …
681{ 1539{
682 write (STDERR_FILENO, msg, strlen (msg)); 1540 write (STDERR_FILENO, msg, strlen (msg));
683} 1541}
684#endif 1542#endif
685 1543
686static void (*syserr_cb)(const char *msg); 1544static void (*syserr_cb)(const char *msg) EV_THROW;
687 1545
688void ecb_cold 1546void ecb_cold
689ev_set_syserr_cb (void (*cb)(const char *msg)) 1547ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
690{ 1548{
691 syserr_cb = cb; 1549 syserr_cb = cb;
692} 1550}
693 1551
694static void noinline ecb_cold 1552static void noinline ecb_cold
… …
712 abort (); 1570 abort ();
713 } 1571 }
714} 1572}
715 1573
716static void * 1574static void *
717ev_realloc_emul (void *ptr, long size) 1575ev_realloc_emul (void *ptr, long size) EV_THROW
718{ 1576{
719#if __GLIBC__
720 return realloc (ptr, size);
721#else
722 /* some systems, notably openbsd and darwin, fail to properly 1577 /* some systems, notably openbsd and darwin, fail to properly
723 * implement realloc (x, 0) (as required by both ansi c-89 and 1578 * implement realloc (x, 0) (as required by both ansi c-89 and
724 * the single unix specification, so work around them here. 1579 * the single unix specification, so work around them here.
1580 * recently, also (at least) fedora and debian started breaking it,
1581 * despite documenting it otherwise.
725 */ 1582 */
726 1583
727 if (size) 1584 if (size)
728 return realloc (ptr, size); 1585 return realloc (ptr, size);
729 1586
730 free (ptr); 1587 free (ptr);
731 return 0; 1588 return 0;
732#endif
733} 1589}
734 1590
735static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1591static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
736 1592
737void ecb_cold 1593void ecb_cold
738ev_set_allocator (void *(*cb)(void *ptr, long size)) 1594ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
739{ 1595{
740 alloc = cb; 1596 alloc = cb;
741} 1597}
742 1598
743inline_speed void * 1599inline_speed void *
… …
831 #undef VAR 1687 #undef VAR
832 }; 1688 };
833 #include "ev_wrap.h" 1689 #include "ev_wrap.h"
834 1690
835 static struct ev_loop default_loop_struct; 1691 static struct ev_loop default_loop_struct;
836 struct ev_loop *ev_default_loop_ptr; 1692 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
837 1693
838#else 1694#else
839 1695
840 ev_tstamp ev_rt_now; 1696 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
841 #define VAR(name,decl) static decl; 1697 #define VAR(name,decl) static decl;
842 #include "ev_vars.h" 1698 #include "ev_vars.h"
843 #undef VAR 1699 #undef VAR
844 1700
845 static int ev_default_loop_ptr; 1701 static int ev_default_loop_ptr;
… …
860 1716
861/*****************************************************************************/ 1717/*****************************************************************************/
862 1718
863#ifndef EV_HAVE_EV_TIME 1719#ifndef EV_HAVE_EV_TIME
864ev_tstamp 1720ev_tstamp
865ev_time (void) 1721ev_time (void) EV_THROW
866{ 1722{
867#if EV_USE_REALTIME 1723#if EV_USE_REALTIME
868 if (expect_true (have_realtime)) 1724 if (expect_true (have_realtime))
869 { 1725 {
870 struct timespec ts; 1726 struct timespec ts;
… …
894 return ev_time (); 1750 return ev_time ();
895} 1751}
896 1752
897#if EV_MULTIPLICITY 1753#if EV_MULTIPLICITY
898ev_tstamp 1754ev_tstamp
899ev_now (EV_P) 1755ev_now (EV_P) EV_THROW
900{ 1756{
901 return ev_rt_now; 1757 return ev_rt_now;
902} 1758}
903#endif 1759#endif
904 1760
905void 1761void
906ev_sleep (ev_tstamp delay) 1762ev_sleep (ev_tstamp delay) EV_THROW
907{ 1763{
908 if (delay > 0.) 1764 if (delay > 0.)
909 { 1765 {
910#if EV_USE_NANOSLEEP 1766#if EV_USE_NANOSLEEP
911 struct timespec ts; 1767 struct timespec ts;
912 1768
913 EV_TS_SET (ts, delay); 1769 EV_TS_SET (ts, delay);
914 nanosleep (&ts, 0); 1770 nanosleep (&ts, 0);
915#elif defined(_WIN32) 1771#elif defined _WIN32
916 Sleep ((unsigned long)(delay * 1e3)); 1772 Sleep ((unsigned long)(delay * 1e3));
917#else 1773#else
918 struct timeval tv; 1774 struct timeval tv;
919 1775
920 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
939 1795
940 do 1796 do
941 ncur <<= 1; 1797 ncur <<= 1;
942 while (cnt > ncur); 1798 while (cnt > ncur);
943 1799
944 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1800 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
945 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1801 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
946 { 1802 {
947 ncur *= elem; 1803 ncur *= elem;
948 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1804 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
949 ncur = ncur - sizeof (void *) * 4; 1805 ncur = ncur - sizeof (void *) * 4;
… …
964 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1820 memset ((void *)(base), 0, sizeof (*(base)) * (count))
965 1821
966#define array_needsize(type,base,cur,cnt,init) \ 1822#define array_needsize(type,base,cur,cnt,init) \
967 if (expect_false ((cnt) > (cur))) \ 1823 if (expect_false ((cnt) > (cur))) \
968 { \ 1824 { \
969 int ocur_ = (cur); \ 1825 int ecb_unused ocur_ = (cur); \
970 (base) = (type *)array_realloc \ 1826 (base) = (type *)array_realloc \
971 (sizeof (type), (base), &(cur), (cnt)); \ 1827 (sizeof (type), (base), &(cur), (cnt)); \
972 init ((base) + (ocur_), (cur) - ocur_); \ 1828 init ((base) + (ocur_), (cur) - ocur_); \
973 } 1829 }
974 1830
… …
992pendingcb (EV_P_ ev_prepare *w, int revents) 1848pendingcb (EV_P_ ev_prepare *w, int revents)
993{ 1849{
994} 1850}
995 1851
996void noinline 1852void noinline
997ev_feed_event (EV_P_ void *w, int revents) 1853ev_feed_event (EV_P_ void *w, int revents) EV_THROW
998{ 1854{
999 W w_ = (W)w; 1855 W w_ = (W)w;
1000 int pri = ABSPRI (w_); 1856 int pri = ABSPRI (w_);
1001 1857
1002 if (expect_false (w_->pending)) 1858 if (expect_false (w_->pending))
… …
1006 w_->pending = ++pendingcnt [pri]; 1862 w_->pending = ++pendingcnt [pri];
1007 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1863 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1008 pendings [pri][w_->pending - 1].w = w_; 1864 pendings [pri][w_->pending - 1].w = w_;
1009 pendings [pri][w_->pending - 1].events = revents; 1865 pendings [pri][w_->pending - 1].events = revents;
1010 } 1866 }
1867
1868 pendingpri = NUMPRI - 1;
1011} 1869}
1012 1870
1013inline_speed void 1871inline_speed void
1014feed_reverse (EV_P_ W w) 1872feed_reverse (EV_P_ W w)
1015{ 1873{
… …
1061 if (expect_true (!anfd->reify)) 1919 if (expect_true (!anfd->reify))
1062 fd_event_nocheck (EV_A_ fd, revents); 1920 fd_event_nocheck (EV_A_ fd, revents);
1063} 1921}
1064 1922
1065void 1923void
1066ev_feed_fd_event (EV_P_ int fd, int revents) 1924ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1067{ 1925{
1068 if (fd >= 0 && fd < anfdmax) 1926 if (fd >= 0 && fd < anfdmax)
1069 fd_event_nocheck (EV_A_ fd, revents); 1927 fd_event_nocheck (EV_A_ fd, revents);
1070} 1928}
1071 1929
… …
1390static void noinline ecb_cold 2248static void noinline ecb_cold
1391evpipe_init (EV_P) 2249evpipe_init (EV_P)
1392{ 2250{
1393 if (!ev_is_active (&pipe_w)) 2251 if (!ev_is_active (&pipe_w))
1394 { 2252 {
2253 int fds [2];
2254
1395# if EV_USE_EVENTFD 2255# if EV_USE_EVENTFD
2256 fds [0] = -1;
1396 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2257 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1397 if (evfd < 0 && errno == EINVAL) 2258 if (fds [1] < 0 && errno == EINVAL)
1398 evfd = eventfd (0, 0); 2259 fds [1] = eventfd (0, 0);
1399 2260
1400 if (evfd >= 0) 2261 if (fds [1] < 0)
2262# endif
1401 { 2263 {
2264 while (pipe (fds))
2265 ev_syserr ("(libev) error creating signal/async pipe");
2266
2267 fd_intern (fds [0]);
2268 }
2269
1402 evpipe [0] = -1; 2270 evpipe [0] = fds [0];
1403 fd_intern (evfd); /* doing it twice doesn't hurt */ 2271
1404 ev_io_set (&pipe_w, evfd, EV_READ); 2272 if (evpipe [1] < 0)
2273 evpipe [1] = fds [1]; /* first call, set write fd */
2274 else
2275 {
2276 /* on subsequent calls, do not change evpipe [1] */
2277 /* so that evpipe_write can always rely on its value. */
2278 /* this branch does not do anything sensible on windows, */
2279 /* so must not be executed on windows */
2280
2281 dup2 (fds [1], evpipe [1]);
2282 close (fds [1]);
2283 }
2284
2285 fd_intern (evpipe [1]);
2286
2287 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2288 ev_io_start (EV_A_ &pipe_w);
2289 ev_unref (EV_A); /* watcher should not keep loop alive */
2290 }
2291}
2292
2293inline_speed void
2294evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2295{
2296 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2297
2298 if (expect_true (*flag))
2299 return;
2300
2301 *flag = 1;
2302 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2303
2304 pipe_write_skipped = 1;
2305
2306 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2307
2308 if (pipe_write_wanted)
2309 {
2310 int old_errno;
2311
2312 pipe_write_skipped = 0;
2313 ECB_MEMORY_FENCE_RELEASE;
2314
2315 old_errno = errno; /* save errno because write will clobber it */
2316
2317#if EV_USE_EVENTFD
2318 if (evpipe [0] < 0)
2319 {
2320 uint64_t counter = 1;
2321 write (evpipe [1], &counter, sizeof (uint64_t));
1405 } 2322 }
1406 else 2323 else
1407# endif 2324#endif
1408 { 2325 {
1409 while (pipe (evpipe)) 2326#ifdef _WIN32
1410 ev_syserr ("(libev) error creating signal/async pipe"); 2327 WSABUF buf;
1411 2328 DWORD sent;
1412 fd_intern (evpipe [0]); 2329 buf.buf = &buf;
1413 fd_intern (evpipe [1]); 2330 buf.len = 1;
1414 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2331 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2332#else
2333 write (evpipe [1], &(evpipe [1]), 1);
2334#endif
1415 } 2335 }
1416 2336
1417 ev_io_start (EV_A_ &pipe_w);
1418 ev_unref (EV_A); /* watcher should not keep loop alive */
1419 }
1420}
1421
1422inline_speed void
1423evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1424{
1425 if (!*flag)
1426 {
1427 *flag = 1;
1428
1429 pipe_write_skipped = 1;
1430
1431 if (pipe_write_wanted)
1432 {
1433 int old_errno;
1434
1435 pipe_write_skipped = 0;
1436
1437 old_errno = errno; /* save errno because write will clobber it */
1438
1439#if EV_USE_EVENTFD
1440 if (evfd >= 0)
1441 {
1442 uint64_t counter = 1;
1443 write (evfd, &counter, sizeof (uint64_t));
1444 }
1445 else
1446#endif
1447 {
1448 /* win32 people keep sending patches that change this write() to send() */
1449 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1450 /* so when you think this write should be a send instead, please find out */
1451 /* where your send() is from - it's definitely not the microsoft send, and */
1452 /* tell me. thank you. */
1453 write (evpipe [1], &(evpipe [1]), 1);
1454 }
1455
1456 errno = old_errno; 2337 errno = old_errno;
1457 }
1458 } 2338 }
1459} 2339}
1460 2340
1461/* called whenever the libev signal pipe */ 2341/* called whenever the libev signal pipe */
1462/* got some events (signal, async) */ 2342/* got some events (signal, async) */
… …
1466 int i; 2346 int i;
1467 2347
1468 if (revents & EV_READ) 2348 if (revents & EV_READ)
1469 { 2349 {
1470#if EV_USE_EVENTFD 2350#if EV_USE_EVENTFD
1471 if (evfd >= 0) 2351 if (evpipe [0] < 0)
1472 { 2352 {
1473 uint64_t counter; 2353 uint64_t counter;
1474 read (evfd, &counter, sizeof (uint64_t)); 2354 read (evpipe [1], &counter, sizeof (uint64_t));
1475 } 2355 }
1476 else 2356 else
1477#endif 2357#endif
1478 { 2358 {
1479 char dummy; 2359 char dummy[4];
1480 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2360#ifdef _WIN32
2361 WSABUF buf;
2362 DWORD recvd;
2363 DWORD flags = 0;
2364 buf.buf = dummy;
2365 buf.len = sizeof (dummy);
2366 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2367#else
1481 read (evpipe [0], &dummy, 1); 2368 read (evpipe [0], &dummy, sizeof (dummy));
2369#endif
1482 } 2370 }
1483 } 2371 }
1484 2372
1485 pipe_write_skipped = 0; 2373 pipe_write_skipped = 0;
2374
2375 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1486 2376
1487#if EV_SIGNAL_ENABLE 2377#if EV_SIGNAL_ENABLE
1488 if (sig_pending) 2378 if (sig_pending)
1489 { 2379 {
1490 sig_pending = 0; 2380 sig_pending = 0;
2381
2382 ECB_MEMORY_FENCE;
1491 2383
1492 for (i = EV_NSIG - 1; i--; ) 2384 for (i = EV_NSIG - 1; i--; )
1493 if (expect_false (signals [i].pending)) 2385 if (expect_false (signals [i].pending))
1494 ev_feed_signal_event (EV_A_ i + 1); 2386 ev_feed_signal_event (EV_A_ i + 1);
1495 } 2387 }
… …
1497 2389
1498#if EV_ASYNC_ENABLE 2390#if EV_ASYNC_ENABLE
1499 if (async_pending) 2391 if (async_pending)
1500 { 2392 {
1501 async_pending = 0; 2393 async_pending = 0;
2394
2395 ECB_MEMORY_FENCE;
1502 2396
1503 for (i = asynccnt; i--; ) 2397 for (i = asynccnt; i--; )
1504 if (asyncs [i]->sent) 2398 if (asyncs [i]->sent)
1505 { 2399 {
1506 asyncs [i]->sent = 0; 2400 asyncs [i]->sent = 0;
2401 ECB_MEMORY_FENCE_RELEASE;
1507 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2402 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1508 } 2403 }
1509 } 2404 }
1510#endif 2405#endif
1511} 2406}
1512 2407
1513/*****************************************************************************/ 2408/*****************************************************************************/
1514 2409
1515void 2410void
1516ev_feed_signal (int signum) 2411ev_feed_signal (int signum) EV_THROW
1517{ 2412{
1518#if EV_MULTIPLICITY 2413#if EV_MULTIPLICITY
2414 EV_P;
2415 ECB_MEMORY_FENCE_ACQUIRE;
1519 EV_P = signals [signum - 1].loop; 2416 EV_A = signals [signum - 1].loop;
1520 2417
1521 if (!EV_A) 2418 if (!EV_A)
1522 return; 2419 return;
1523#endif 2420#endif
1524 2421
1525 evpipe_init (EV_A);
1526
1527 signals [signum - 1].pending = 1; 2422 signals [signum - 1].pending = 1;
1528 evpipe_write (EV_A_ &sig_pending); 2423 evpipe_write (EV_A_ &sig_pending);
1529} 2424}
1530 2425
1531static void 2426static void
… …
1537 2432
1538 ev_feed_signal (signum); 2433 ev_feed_signal (signum);
1539} 2434}
1540 2435
1541void noinline 2436void noinline
1542ev_feed_signal_event (EV_P_ int signum) 2437ev_feed_signal_event (EV_P_ int signum) EV_THROW
1543{ 2438{
1544 WL w; 2439 WL w;
1545 2440
1546 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2441 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1547 return; 2442 return;
1548 2443
1549 --signum; 2444 --signum;
1550 2445
1551#if EV_MULTIPLICITY 2446#if EV_MULTIPLICITY
… …
1555 if (expect_false (signals [signum].loop != EV_A)) 2450 if (expect_false (signals [signum].loop != EV_A))
1556 return; 2451 return;
1557#endif 2452#endif
1558 2453
1559 signals [signum].pending = 0; 2454 signals [signum].pending = 0;
2455 ECB_MEMORY_FENCE_RELEASE;
1560 2456
1561 for (w = signals [signum].head; w; w = w->next) 2457 for (w = signals [signum].head; w; w = w->next)
1562 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2458 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1563} 2459}
1564 2460
… …
1663#if EV_USE_SELECT 2559#if EV_USE_SELECT
1664# include "ev_select.c" 2560# include "ev_select.c"
1665#endif 2561#endif
1666 2562
1667int ecb_cold 2563int ecb_cold
1668ev_version_major (void) 2564ev_version_major (void) EV_THROW
1669{ 2565{
1670 return EV_VERSION_MAJOR; 2566 return EV_VERSION_MAJOR;
1671} 2567}
1672 2568
1673int ecb_cold 2569int ecb_cold
1674ev_version_minor (void) 2570ev_version_minor (void) EV_THROW
1675{ 2571{
1676 return EV_VERSION_MINOR; 2572 return EV_VERSION_MINOR;
1677} 2573}
1678 2574
1679/* return true if we are running with elevated privileges and should ignore env variables */ 2575/* return true if we are running with elevated privileges and should ignore env variables */
… …
1687 || getgid () != getegid (); 2583 || getgid () != getegid ();
1688#endif 2584#endif
1689} 2585}
1690 2586
1691unsigned int ecb_cold 2587unsigned int ecb_cold
1692ev_supported_backends (void) 2588ev_supported_backends (void) EV_THROW
1693{ 2589{
1694 unsigned int flags = 0; 2590 unsigned int flags = 0;
1695 2591
1696 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2592 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1697 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2593 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1701 2597
1702 return flags; 2598 return flags;
1703} 2599}
1704 2600
1705unsigned int ecb_cold 2601unsigned int ecb_cold
1706ev_recommended_backends (void) 2602ev_recommended_backends (void) EV_THROW
1707{ 2603{
1708 unsigned int flags = ev_supported_backends (); 2604 unsigned int flags = ev_supported_backends ();
1709 2605
1710#ifndef __NetBSD__ 2606#ifndef __NetBSD__
1711 /* kqueue is borked on everything but netbsd apparently */ 2607 /* kqueue is borked on everything but netbsd apparently */
… …
1723 2619
1724 return flags; 2620 return flags;
1725} 2621}
1726 2622
1727unsigned int ecb_cold 2623unsigned int ecb_cold
1728ev_embeddable_backends (void) 2624ev_embeddable_backends (void) EV_THROW
1729{ 2625{
1730 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2626 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1731 2627
1732 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2628 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1733 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2629 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1735 2631
1736 return flags; 2632 return flags;
1737} 2633}
1738 2634
1739unsigned int 2635unsigned int
1740ev_backend (EV_P) 2636ev_backend (EV_P) EV_THROW
1741{ 2637{
1742 return backend; 2638 return backend;
1743} 2639}
1744 2640
1745#if EV_FEATURE_API 2641#if EV_FEATURE_API
1746unsigned int 2642unsigned int
1747ev_iteration (EV_P) 2643ev_iteration (EV_P) EV_THROW
1748{ 2644{
1749 return loop_count; 2645 return loop_count;
1750} 2646}
1751 2647
1752unsigned int 2648unsigned int
1753ev_depth (EV_P) 2649ev_depth (EV_P) EV_THROW
1754{ 2650{
1755 return loop_depth; 2651 return loop_depth;
1756} 2652}
1757 2653
1758void 2654void
1759ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2655ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1760{ 2656{
1761 io_blocktime = interval; 2657 io_blocktime = interval;
1762} 2658}
1763 2659
1764void 2660void
1765ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2661ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1766{ 2662{
1767 timeout_blocktime = interval; 2663 timeout_blocktime = interval;
1768} 2664}
1769 2665
1770void 2666void
1771ev_set_userdata (EV_P_ void *data) 2667ev_set_userdata (EV_P_ void *data) EV_THROW
1772{ 2668{
1773 userdata = data; 2669 userdata = data;
1774} 2670}
1775 2671
1776void * 2672void *
1777ev_userdata (EV_P) 2673ev_userdata (EV_P) EV_THROW
1778{ 2674{
1779 return userdata; 2675 return userdata;
1780} 2676}
1781 2677
1782void 2678void
1783ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2679ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1784{ 2680{
1785 invoke_cb = invoke_pending_cb; 2681 invoke_cb = invoke_pending_cb;
1786} 2682}
1787 2683
1788void 2684void
1789ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2685ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1790{ 2686{
1791 release_cb = release; 2687 release_cb = release;
1792 acquire_cb = acquire; 2688 acquire_cb = acquire;
1793} 2689}
1794#endif 2690#endif
1795 2691
1796/* initialise a loop structure, must be zero-initialised */ 2692/* initialise a loop structure, must be zero-initialised */
1797static void noinline ecb_cold 2693static void noinline ecb_cold
1798loop_init (EV_P_ unsigned int flags) 2694loop_init (EV_P_ unsigned int flags) EV_THROW
1799{ 2695{
1800 if (!backend) 2696 if (!backend)
1801 { 2697 {
1802 origflags = flags; 2698 origflags = flags;
1803 2699
… …
1848#if EV_ASYNC_ENABLE 2744#if EV_ASYNC_ENABLE
1849 async_pending = 0; 2745 async_pending = 0;
1850#endif 2746#endif
1851 pipe_write_skipped = 0; 2747 pipe_write_skipped = 0;
1852 pipe_write_wanted = 0; 2748 pipe_write_wanted = 0;
2749 evpipe [0] = -1;
2750 evpipe [1] = -1;
1853#if EV_USE_INOTIFY 2751#if EV_USE_INOTIFY
1854 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2752 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1855#endif 2753#endif
1856#if EV_USE_SIGNALFD 2754#if EV_USE_SIGNALFD
1857 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2755 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
1908 EV_INVOKE_PENDING; 2806 EV_INVOKE_PENDING;
1909 } 2807 }
1910#endif 2808#endif
1911 2809
1912#if EV_CHILD_ENABLE 2810#if EV_CHILD_ENABLE
1913 if (ev_is_active (&childev)) 2811 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1914 { 2812 {
1915 ev_ref (EV_A); /* child watcher */ 2813 ev_ref (EV_A); /* child watcher */
1916 ev_signal_stop (EV_A_ &childev); 2814 ev_signal_stop (EV_A_ &childev);
1917 } 2815 }
1918#endif 2816#endif
… …
1920 if (ev_is_active (&pipe_w)) 2818 if (ev_is_active (&pipe_w))
1921 { 2819 {
1922 /*ev_ref (EV_A);*/ 2820 /*ev_ref (EV_A);*/
1923 /*ev_io_stop (EV_A_ &pipe_w);*/ 2821 /*ev_io_stop (EV_A_ &pipe_w);*/
1924 2822
1925#if EV_USE_EVENTFD
1926 if (evfd >= 0)
1927 close (evfd);
1928#endif
1929
1930 if (evpipe [0] >= 0)
1931 {
1932 EV_WIN32_CLOSE_FD (evpipe [0]); 2823 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1933 EV_WIN32_CLOSE_FD (evpipe [1]); 2824 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1934 }
1935 } 2825 }
1936 2826
1937#if EV_USE_SIGNALFD 2827#if EV_USE_SIGNALFD
1938 if (ev_is_active (&sigfd_w)) 2828 if (ev_is_active (&sigfd_w))
1939 close (sigfd); 2829 close (sigfd);
… …
2025#endif 2915#endif
2026#if EV_USE_INOTIFY 2916#if EV_USE_INOTIFY
2027 infy_fork (EV_A); 2917 infy_fork (EV_A);
2028#endif 2918#endif
2029 2919
2920#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2030 if (ev_is_active (&pipe_w)) 2921 if (ev_is_active (&pipe_w))
2031 { 2922 {
2032 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2923 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2033 2924
2034 ev_ref (EV_A); 2925 ev_ref (EV_A);
2035 ev_io_stop (EV_A_ &pipe_w); 2926 ev_io_stop (EV_A_ &pipe_w);
2036 2927
2037#if EV_USE_EVENTFD
2038 if (evfd >= 0)
2039 close (evfd);
2040#endif
2041
2042 if (evpipe [0] >= 0) 2928 if (evpipe [0] >= 0)
2043 {
2044 EV_WIN32_CLOSE_FD (evpipe [0]); 2929 EV_WIN32_CLOSE_FD (evpipe [0]);
2045 EV_WIN32_CLOSE_FD (evpipe [1]);
2046 }
2047 2930
2048#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2049 evpipe_init (EV_A); 2931 evpipe_init (EV_A);
2050 /* now iterate over everything, in case we missed something */ 2932 /* iterate over everything, in case we missed something before */
2051 pipecb (EV_A_ &pipe_w, EV_READ); 2933 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2052#endif
2053 } 2934 }
2935#endif
2054 2936
2055 postfork = 0; 2937 postfork = 0;
2056} 2938}
2057 2939
2058#if EV_MULTIPLICITY 2940#if EV_MULTIPLICITY
2059 2941
2060struct ev_loop * ecb_cold 2942struct ev_loop * ecb_cold
2061ev_loop_new (unsigned int flags) 2943ev_loop_new (unsigned int flags) EV_THROW
2062{ 2944{
2063 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2945 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2064 2946
2065 memset (EV_A, 0, sizeof (struct ev_loop)); 2947 memset (EV_A, 0, sizeof (struct ev_loop));
2066 loop_init (EV_A_ flags); 2948 loop_init (EV_A_ flags);
… …
2110} 2992}
2111#endif 2993#endif
2112 2994
2113#if EV_FEATURE_API 2995#if EV_FEATURE_API
2114void ecb_cold 2996void ecb_cold
2115ev_verify (EV_P) 2997ev_verify (EV_P) EV_THROW
2116{ 2998{
2117#if EV_VERIFY 2999#if EV_VERIFY
2118 int i; 3000 int i;
2119 WL w; 3001 WL w, w2;
2120 3002
2121 assert (activecnt >= -1); 3003 assert (activecnt >= -1);
2122 3004
2123 assert (fdchangemax >= fdchangecnt); 3005 assert (fdchangemax >= fdchangecnt);
2124 for (i = 0; i < fdchangecnt; ++i) 3006 for (i = 0; i < fdchangecnt; ++i)
2125 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3007 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2126 3008
2127 assert (anfdmax >= 0); 3009 assert (anfdmax >= 0);
2128 for (i = 0; i < anfdmax; ++i) 3010 for (i = 0; i < anfdmax; ++i)
3011 {
3012 int j = 0;
3013
2129 for (w = anfds [i].head; w; w = w->next) 3014 for (w = w2 = anfds [i].head; w; w = w->next)
2130 { 3015 {
2131 verify_watcher (EV_A_ (W)w); 3016 verify_watcher (EV_A_ (W)w);
3017
3018 if (j++ & 1)
3019 {
3020 assert (("libev: io watcher list contains a loop", w != w2));
3021 w2 = w2->next;
3022 }
3023
2132 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3024 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2133 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3025 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2134 } 3026 }
3027 }
2135 3028
2136 assert (timermax >= timercnt); 3029 assert (timermax >= timercnt);
2137 verify_heap (EV_A_ timers, timercnt); 3030 verify_heap (EV_A_ timers, timercnt);
2138 3031
2139#if EV_PERIODIC_ENABLE 3032#if EV_PERIODIC_ENABLE
… …
2189#if EV_MULTIPLICITY 3082#if EV_MULTIPLICITY
2190struct ev_loop * ecb_cold 3083struct ev_loop * ecb_cold
2191#else 3084#else
2192int 3085int
2193#endif 3086#endif
2194ev_default_loop (unsigned int flags) 3087ev_default_loop (unsigned int flags) EV_THROW
2195{ 3088{
2196 if (!ev_default_loop_ptr) 3089 if (!ev_default_loop_ptr)
2197 { 3090 {
2198#if EV_MULTIPLICITY 3091#if EV_MULTIPLICITY
2199 EV_P = ev_default_loop_ptr = &default_loop_struct; 3092 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2218 3111
2219 return ev_default_loop_ptr; 3112 return ev_default_loop_ptr;
2220} 3113}
2221 3114
2222void 3115void
2223ev_loop_fork (EV_P) 3116ev_loop_fork (EV_P) EV_THROW
2224{ 3117{
2225 postfork = 1; /* must be in line with ev_default_fork */ 3118 postfork = 1;
2226} 3119}
2227 3120
2228/*****************************************************************************/ 3121/*****************************************************************************/
2229 3122
2230void 3123void
… …
2232{ 3125{
2233 EV_CB_INVOKE ((W)w, revents); 3126 EV_CB_INVOKE ((W)w, revents);
2234} 3127}
2235 3128
2236unsigned int 3129unsigned int
2237ev_pending_count (EV_P) 3130ev_pending_count (EV_P) EV_THROW
2238{ 3131{
2239 int pri; 3132 int pri;
2240 unsigned int count = 0; 3133 unsigned int count = 0;
2241 3134
2242 for (pri = NUMPRI; pri--; ) 3135 for (pri = NUMPRI; pri--; )
… …
2246} 3139}
2247 3140
2248void noinline 3141void noinline
2249ev_invoke_pending (EV_P) 3142ev_invoke_pending (EV_P)
2250{ 3143{
2251 int pri; 3144 pendingpri = NUMPRI;
2252 3145
2253 for (pri = NUMPRI; pri--; ) 3146 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3147 {
3148 --pendingpri;
3149
2254 while (pendingcnt [pri]) 3150 while (pendingcnt [pendingpri])
2255 { 3151 {
2256 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3152 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2257 3153
2258 p->w->pending = 0; 3154 p->w->pending = 0;
2259 EV_CB_INVOKE (p->w, p->events); 3155 EV_CB_INVOKE (p->w, p->events);
2260 EV_FREQUENT_CHECK; 3156 EV_FREQUENT_CHECK;
2261 } 3157 }
3158 }
2262} 3159}
2263 3160
2264#if EV_IDLE_ENABLE 3161#if EV_IDLE_ENABLE
2265/* make idle watchers pending. this handles the "call-idle */ 3162/* make idle watchers pending. this handles the "call-idle */
2266/* only when higher priorities are idle" logic */ 3163/* only when higher priorities are idle" logic */
… …
2356{ 3253{
2357 EV_FREQUENT_CHECK; 3254 EV_FREQUENT_CHECK;
2358 3255
2359 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3256 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2360 { 3257 {
2361 int feed_count = 0;
2362
2363 do 3258 do
2364 { 3259 {
2365 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3260 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2366 3261
2367 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3262 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2501 3396
2502 mn_now = ev_rt_now; 3397 mn_now = ev_rt_now;
2503 } 3398 }
2504} 3399}
2505 3400
2506void 3401int
2507ev_run (EV_P_ int flags) 3402ev_run (EV_P_ int flags)
2508{ 3403{
2509#if EV_FEATURE_API 3404#if EV_FEATURE_API
2510 ++loop_depth; 3405 ++loop_depth;
2511#endif 3406#endif
… …
2572 time_update (EV_A_ 1e100); 3467 time_update (EV_A_ 1e100);
2573 3468
2574 /* from now on, we want a pipe-wake-up */ 3469 /* from now on, we want a pipe-wake-up */
2575 pipe_write_wanted = 1; 3470 pipe_write_wanted = 1;
2576 3471
3472 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3473
2577 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3474 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2578 { 3475 {
2579 waittime = MAX_BLOCKTIME; 3476 waittime = MAX_BLOCKTIME;
2580 3477
2581 if (timercnt) 3478 if (timercnt)
… …
2622#endif 3519#endif
2623 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3520 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2624 backend_poll (EV_A_ waittime); 3521 backend_poll (EV_A_ waittime);
2625 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3522 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2626 3523
2627 pipe_write_wanted = 0; 3524 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2628 3525
3526 ECB_MEMORY_FENCE_ACQUIRE;
2629 if (pipe_write_skipped) 3527 if (pipe_write_skipped)
2630 { 3528 {
2631 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3529 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2632 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3530 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2633 } 3531 }
… …
2666 loop_done = EVBREAK_CANCEL; 3564 loop_done = EVBREAK_CANCEL;
2667 3565
2668#if EV_FEATURE_API 3566#if EV_FEATURE_API
2669 --loop_depth; 3567 --loop_depth;
2670#endif 3568#endif
3569
3570 return activecnt;
2671} 3571}
2672 3572
2673void 3573void
2674ev_break (EV_P_ int how) 3574ev_break (EV_P_ int how) EV_THROW
2675{ 3575{
2676 loop_done = how; 3576 loop_done = how;
2677} 3577}
2678 3578
2679void 3579void
2680ev_ref (EV_P) 3580ev_ref (EV_P) EV_THROW
2681{ 3581{
2682 ++activecnt; 3582 ++activecnt;
2683} 3583}
2684 3584
2685void 3585void
2686ev_unref (EV_P) 3586ev_unref (EV_P) EV_THROW
2687{ 3587{
2688 --activecnt; 3588 --activecnt;
2689} 3589}
2690 3590
2691void 3591void
2692ev_now_update (EV_P) 3592ev_now_update (EV_P) EV_THROW
2693{ 3593{
2694 time_update (EV_A_ 1e100); 3594 time_update (EV_A_ 1e100);
2695} 3595}
2696 3596
2697void 3597void
2698ev_suspend (EV_P) 3598ev_suspend (EV_P) EV_THROW
2699{ 3599{
2700 ev_now_update (EV_A); 3600 ev_now_update (EV_A);
2701} 3601}
2702 3602
2703void 3603void
2704ev_resume (EV_P) 3604ev_resume (EV_P) EV_THROW
2705{ 3605{
2706 ev_tstamp mn_prev = mn_now; 3606 ev_tstamp mn_prev = mn_now;
2707 3607
2708 ev_now_update (EV_A); 3608 ev_now_update (EV_A);
2709 timers_reschedule (EV_A_ mn_now - mn_prev); 3609 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2748 w->pending = 0; 3648 w->pending = 0;
2749 } 3649 }
2750} 3650}
2751 3651
2752int 3652int
2753ev_clear_pending (EV_P_ void *w) 3653ev_clear_pending (EV_P_ void *w) EV_THROW
2754{ 3654{
2755 W w_ = (W)w; 3655 W w_ = (W)w;
2756 int pending = w_->pending; 3656 int pending = w_->pending;
2757 3657
2758 if (expect_true (pending)) 3658 if (expect_true (pending))
… …
2791} 3691}
2792 3692
2793/*****************************************************************************/ 3693/*****************************************************************************/
2794 3694
2795void noinline 3695void noinline
2796ev_io_start (EV_P_ ev_io *w) 3696ev_io_start (EV_P_ ev_io *w) EV_THROW
2797{ 3697{
2798 int fd = w->fd; 3698 int fd = w->fd;
2799 3699
2800 if (expect_false (ev_is_active (w))) 3700 if (expect_false (ev_is_active (w)))
2801 return; 3701 return;
… …
2807 3707
2808 ev_start (EV_A_ (W)w, 1); 3708 ev_start (EV_A_ (W)w, 1);
2809 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3709 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2810 wlist_add (&anfds[fd].head, (WL)w); 3710 wlist_add (&anfds[fd].head, (WL)w);
2811 3711
3712 /* common bug, apparently */
3713 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3714
2812 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3715 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2813 w->events &= ~EV__IOFDSET; 3716 w->events &= ~EV__IOFDSET;
2814 3717
2815 EV_FREQUENT_CHECK; 3718 EV_FREQUENT_CHECK;
2816} 3719}
2817 3720
2818void noinline 3721void noinline
2819ev_io_stop (EV_P_ ev_io *w) 3722ev_io_stop (EV_P_ ev_io *w) EV_THROW
2820{ 3723{
2821 clear_pending (EV_A_ (W)w); 3724 clear_pending (EV_A_ (W)w);
2822 if (expect_false (!ev_is_active (w))) 3725 if (expect_false (!ev_is_active (w)))
2823 return; 3726 return;
2824 3727
… …
2833 3736
2834 EV_FREQUENT_CHECK; 3737 EV_FREQUENT_CHECK;
2835} 3738}
2836 3739
2837void noinline 3740void noinline
2838ev_timer_start (EV_P_ ev_timer *w) 3741ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2839{ 3742{
2840 if (expect_false (ev_is_active (w))) 3743 if (expect_false (ev_is_active (w)))
2841 return; 3744 return;
2842 3745
2843 ev_at (w) += mn_now; 3746 ev_at (w) += mn_now;
… …
2857 3760
2858 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3761 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2859} 3762}
2860 3763
2861void noinline 3764void noinline
2862ev_timer_stop (EV_P_ ev_timer *w) 3765ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2863{ 3766{
2864 clear_pending (EV_A_ (W)w); 3767 clear_pending (EV_A_ (W)w);
2865 if (expect_false (!ev_is_active (w))) 3768 if (expect_false (!ev_is_active (w)))
2866 return; 3769 return;
2867 3770
… …
2887 3790
2888 EV_FREQUENT_CHECK; 3791 EV_FREQUENT_CHECK;
2889} 3792}
2890 3793
2891void noinline 3794void noinline
2892ev_timer_again (EV_P_ ev_timer *w) 3795ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2893{ 3796{
2894 EV_FREQUENT_CHECK; 3797 EV_FREQUENT_CHECK;
3798
3799 clear_pending (EV_A_ (W)w);
2895 3800
2896 if (ev_is_active (w)) 3801 if (ev_is_active (w))
2897 { 3802 {
2898 if (w->repeat) 3803 if (w->repeat)
2899 { 3804 {
… …
2912 3817
2913 EV_FREQUENT_CHECK; 3818 EV_FREQUENT_CHECK;
2914} 3819}
2915 3820
2916ev_tstamp 3821ev_tstamp
2917ev_timer_remaining (EV_P_ ev_timer *w) 3822ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2918{ 3823{
2919 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3824 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2920} 3825}
2921 3826
2922#if EV_PERIODIC_ENABLE 3827#if EV_PERIODIC_ENABLE
2923void noinline 3828void noinline
2924ev_periodic_start (EV_P_ ev_periodic *w) 3829ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2925{ 3830{
2926 if (expect_false (ev_is_active (w))) 3831 if (expect_false (ev_is_active (w)))
2927 return; 3832 return;
2928 3833
2929 if (w->reschedule_cb) 3834 if (w->reschedule_cb)
… …
2949 3854
2950 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3855 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2951} 3856}
2952 3857
2953void noinline 3858void noinline
2954ev_periodic_stop (EV_P_ ev_periodic *w) 3859ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2955{ 3860{
2956 clear_pending (EV_A_ (W)w); 3861 clear_pending (EV_A_ (W)w);
2957 if (expect_false (!ev_is_active (w))) 3862 if (expect_false (!ev_is_active (w)))
2958 return; 3863 return;
2959 3864
… …
2977 3882
2978 EV_FREQUENT_CHECK; 3883 EV_FREQUENT_CHECK;
2979} 3884}
2980 3885
2981void noinline 3886void noinline
2982ev_periodic_again (EV_P_ ev_periodic *w) 3887ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2983{ 3888{
2984 /* TODO: use adjustheap and recalculation */ 3889 /* TODO: use adjustheap and recalculation */
2985 ev_periodic_stop (EV_A_ w); 3890 ev_periodic_stop (EV_A_ w);
2986 ev_periodic_start (EV_A_ w); 3891 ev_periodic_start (EV_A_ w);
2987} 3892}
… …
2992#endif 3897#endif
2993 3898
2994#if EV_SIGNAL_ENABLE 3899#if EV_SIGNAL_ENABLE
2995 3900
2996void noinline 3901void noinline
2997ev_signal_start (EV_P_ ev_signal *w) 3902ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2998{ 3903{
2999 if (expect_false (ev_is_active (w))) 3904 if (expect_false (ev_is_active (w)))
3000 return; 3905 return;
3001 3906
3002 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3907 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3004#if EV_MULTIPLICITY 3909#if EV_MULTIPLICITY
3005 assert (("libev: a signal must not be attached to two different loops", 3910 assert (("libev: a signal must not be attached to two different loops",
3006 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3911 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3007 3912
3008 signals [w->signum - 1].loop = EV_A; 3913 signals [w->signum - 1].loop = EV_A;
3914 ECB_MEMORY_FENCE_RELEASE;
3009#endif 3915#endif
3010 3916
3011 EV_FREQUENT_CHECK; 3917 EV_FREQUENT_CHECK;
3012 3918
3013#if EV_USE_SIGNALFD 3919#if EV_USE_SIGNALFD
… …
3073 3979
3074 EV_FREQUENT_CHECK; 3980 EV_FREQUENT_CHECK;
3075} 3981}
3076 3982
3077void noinline 3983void noinline
3078ev_signal_stop (EV_P_ ev_signal *w) 3984ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3079{ 3985{
3080 clear_pending (EV_A_ (W)w); 3986 clear_pending (EV_A_ (W)w);
3081 if (expect_false (!ev_is_active (w))) 3987 if (expect_false (!ev_is_active (w)))
3082 return; 3988 return;
3083 3989
… …
3114#endif 4020#endif
3115 4021
3116#if EV_CHILD_ENABLE 4022#if EV_CHILD_ENABLE
3117 4023
3118void 4024void
3119ev_child_start (EV_P_ ev_child *w) 4025ev_child_start (EV_P_ ev_child *w) EV_THROW
3120{ 4026{
3121#if EV_MULTIPLICITY 4027#if EV_MULTIPLICITY
3122 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4028 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3123#endif 4029#endif
3124 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
… …
3131 4037
3132 EV_FREQUENT_CHECK; 4038 EV_FREQUENT_CHECK;
3133} 4039}
3134 4040
3135void 4041void
3136ev_child_stop (EV_P_ ev_child *w) 4042ev_child_stop (EV_P_ ev_child *w) EV_THROW
3137{ 4043{
3138 clear_pending (EV_A_ (W)w); 4044 clear_pending (EV_A_ (W)w);
3139 if (expect_false (!ev_is_active (w))) 4045 if (expect_false (!ev_is_active (w)))
3140 return; 4046 return;
3141 4047
… …
3168# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4074# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3169 4075
3170static void noinline 4076static void noinline
3171infy_add (EV_P_ ev_stat *w) 4077infy_add (EV_P_ ev_stat *w)
3172{ 4078{
3173 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); 4079 w->wd = inotify_add_watch (fs_fd, w->path,
4080 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4081 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4082 | IN_DONT_FOLLOW | IN_MASK_ADD);
3174 4083
3175 if (w->wd >= 0) 4084 if (w->wd >= 0)
3176 { 4085 {
3177 struct statfs sfs; 4086 struct statfs sfs;
3178 4087
… …
3182 4091
3183 if (!fs_2625) 4092 if (!fs_2625)
3184 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4093 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3185 else if (!statfs (w->path, &sfs) 4094 else if (!statfs (w->path, &sfs)
3186 && (sfs.f_type == 0x1373 /* devfs */ 4095 && (sfs.f_type == 0x1373 /* devfs */
4096 || sfs.f_type == 0x4006 /* fat */
4097 || sfs.f_type == 0x4d44 /* msdos */
3187 || sfs.f_type == 0xEF53 /* ext2/3 */ 4098 || sfs.f_type == 0xEF53 /* ext2/3 */
4099 || sfs.f_type == 0x72b6 /* jffs2 */
4100 || sfs.f_type == 0x858458f6 /* ramfs */
4101 || sfs.f_type == 0x5346544e /* ntfs */
3188 || sfs.f_type == 0x3153464a /* jfs */ 4102 || sfs.f_type == 0x3153464a /* jfs */
4103 || sfs.f_type == 0x9123683e /* btrfs */
3189 || sfs.f_type == 0x52654973 /* reiser3 */ 4104 || sfs.f_type == 0x52654973 /* reiser3 */
3190 || sfs.f_type == 0x01021994 /* tempfs */ 4105 || sfs.f_type == 0x01021994 /* tmpfs */
3191 || sfs.f_type == 0x58465342 /* xfs */)) 4106 || sfs.f_type == 0x58465342 /* xfs */))
3192 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4107 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3193 else 4108 else
3194 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4109 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3195 } 4110 }
… …
3308} 4223}
3309 4224
3310inline_size int 4225inline_size int
3311infy_newfd (void) 4226infy_newfd (void)
3312{ 4227{
3313#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4228#if defined IN_CLOEXEC && defined IN_NONBLOCK
3314 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4229 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3315 if (fd >= 0) 4230 if (fd >= 0)
3316 return fd; 4231 return fd;
3317#endif 4232#endif
3318 return inotify_init (); 4233 return inotify_init ();
… …
3393#else 4308#else
3394# define EV_LSTAT(p,b) lstat (p, b) 4309# define EV_LSTAT(p,b) lstat (p, b)
3395#endif 4310#endif
3396 4311
3397void 4312void
3398ev_stat_stat (EV_P_ ev_stat *w) 4313ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3399{ 4314{
3400 if (lstat (w->path, &w->attr) < 0) 4315 if (lstat (w->path, &w->attr) < 0)
3401 w->attr.st_nlink = 0; 4316 w->attr.st_nlink = 0;
3402 else if (!w->attr.st_nlink) 4317 else if (!w->attr.st_nlink)
3403 w->attr.st_nlink = 1; 4318 w->attr.st_nlink = 1;
… …
3442 ev_feed_event (EV_A_ w, EV_STAT); 4357 ev_feed_event (EV_A_ w, EV_STAT);
3443 } 4358 }
3444} 4359}
3445 4360
3446void 4361void
3447ev_stat_start (EV_P_ ev_stat *w) 4362ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3448{ 4363{
3449 if (expect_false (ev_is_active (w))) 4364 if (expect_false (ev_is_active (w)))
3450 return; 4365 return;
3451 4366
3452 ev_stat_stat (EV_A_ w); 4367 ev_stat_stat (EV_A_ w);
… …
3473 4388
3474 EV_FREQUENT_CHECK; 4389 EV_FREQUENT_CHECK;
3475} 4390}
3476 4391
3477void 4392void
3478ev_stat_stop (EV_P_ ev_stat *w) 4393ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3479{ 4394{
3480 clear_pending (EV_A_ (W)w); 4395 clear_pending (EV_A_ (W)w);
3481 if (expect_false (!ev_is_active (w))) 4396 if (expect_false (!ev_is_active (w)))
3482 return; 4397 return;
3483 4398
… …
3499} 4414}
3500#endif 4415#endif
3501 4416
3502#if EV_IDLE_ENABLE 4417#if EV_IDLE_ENABLE
3503void 4418void
3504ev_idle_start (EV_P_ ev_idle *w) 4419ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3505{ 4420{
3506 if (expect_false (ev_is_active (w))) 4421 if (expect_false (ev_is_active (w)))
3507 return; 4422 return;
3508 4423
3509 pri_adjust (EV_A_ (W)w); 4424 pri_adjust (EV_A_ (W)w);
… …
3522 4437
3523 EV_FREQUENT_CHECK; 4438 EV_FREQUENT_CHECK;
3524} 4439}
3525 4440
3526void 4441void
3527ev_idle_stop (EV_P_ ev_idle *w) 4442ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3528{ 4443{
3529 clear_pending (EV_A_ (W)w); 4444 clear_pending (EV_A_ (W)w);
3530 if (expect_false (!ev_is_active (w))) 4445 if (expect_false (!ev_is_active (w)))
3531 return; 4446 return;
3532 4447
… …
3546} 4461}
3547#endif 4462#endif
3548 4463
3549#if EV_PREPARE_ENABLE 4464#if EV_PREPARE_ENABLE
3550void 4465void
3551ev_prepare_start (EV_P_ ev_prepare *w) 4466ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3552{ 4467{
3553 if (expect_false (ev_is_active (w))) 4468 if (expect_false (ev_is_active (w)))
3554 return; 4469 return;
3555 4470
3556 EV_FREQUENT_CHECK; 4471 EV_FREQUENT_CHECK;
… …
3561 4476
3562 EV_FREQUENT_CHECK; 4477 EV_FREQUENT_CHECK;
3563} 4478}
3564 4479
3565void 4480void
3566ev_prepare_stop (EV_P_ ev_prepare *w) 4481ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3567{ 4482{
3568 clear_pending (EV_A_ (W)w); 4483 clear_pending (EV_A_ (W)w);
3569 if (expect_false (!ev_is_active (w))) 4484 if (expect_false (!ev_is_active (w)))
3570 return; 4485 return;
3571 4486
… …
3584} 4499}
3585#endif 4500#endif
3586 4501
3587#if EV_CHECK_ENABLE 4502#if EV_CHECK_ENABLE
3588void 4503void
3589ev_check_start (EV_P_ ev_check *w) 4504ev_check_start (EV_P_ ev_check *w) EV_THROW
3590{ 4505{
3591 if (expect_false (ev_is_active (w))) 4506 if (expect_false (ev_is_active (w)))
3592 return; 4507 return;
3593 4508
3594 EV_FREQUENT_CHECK; 4509 EV_FREQUENT_CHECK;
… …
3599 4514
3600 EV_FREQUENT_CHECK; 4515 EV_FREQUENT_CHECK;
3601} 4516}
3602 4517
3603void 4518void
3604ev_check_stop (EV_P_ ev_check *w) 4519ev_check_stop (EV_P_ ev_check *w) EV_THROW
3605{ 4520{
3606 clear_pending (EV_A_ (W)w); 4521 clear_pending (EV_A_ (W)w);
3607 if (expect_false (!ev_is_active (w))) 4522 if (expect_false (!ev_is_active (w)))
3608 return; 4523 return;
3609 4524
… …
3622} 4537}
3623#endif 4538#endif
3624 4539
3625#if EV_EMBED_ENABLE 4540#if EV_EMBED_ENABLE
3626void noinline 4541void noinline
3627ev_embed_sweep (EV_P_ ev_embed *w) 4542ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3628{ 4543{
3629 ev_run (w->other, EVRUN_NOWAIT); 4544 ev_run (w->other, EVRUN_NOWAIT);
3630} 4545}
3631 4546
3632static void 4547static void
… …
3680 ev_idle_stop (EV_A_ idle); 4595 ev_idle_stop (EV_A_ idle);
3681} 4596}
3682#endif 4597#endif
3683 4598
3684void 4599void
3685ev_embed_start (EV_P_ ev_embed *w) 4600ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3686{ 4601{
3687 if (expect_false (ev_is_active (w))) 4602 if (expect_false (ev_is_active (w)))
3688 return; 4603 return;
3689 4604
3690 { 4605 {
… …
3711 4626
3712 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
3713} 4628}
3714 4629
3715void 4630void
3716ev_embed_stop (EV_P_ ev_embed *w) 4631ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3717{ 4632{
3718 clear_pending (EV_A_ (W)w); 4633 clear_pending (EV_A_ (W)w);
3719 if (expect_false (!ev_is_active (w))) 4634 if (expect_false (!ev_is_active (w)))
3720 return; 4635 return;
3721 4636
… …
3731} 4646}
3732#endif 4647#endif
3733 4648
3734#if EV_FORK_ENABLE 4649#if EV_FORK_ENABLE
3735void 4650void
3736ev_fork_start (EV_P_ ev_fork *w) 4651ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3737{ 4652{
3738 if (expect_false (ev_is_active (w))) 4653 if (expect_false (ev_is_active (w)))
3739 return; 4654 return;
3740 4655
3741 EV_FREQUENT_CHECK; 4656 EV_FREQUENT_CHECK;
… …
3746 4661
3747 EV_FREQUENT_CHECK; 4662 EV_FREQUENT_CHECK;
3748} 4663}
3749 4664
3750void 4665void
3751ev_fork_stop (EV_P_ ev_fork *w) 4666ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3752{ 4667{
3753 clear_pending (EV_A_ (W)w); 4668 clear_pending (EV_A_ (W)w);
3754 if (expect_false (!ev_is_active (w))) 4669 if (expect_false (!ev_is_active (w)))
3755 return; 4670 return;
3756 4671
… …
3769} 4684}
3770#endif 4685#endif
3771 4686
3772#if EV_CLEANUP_ENABLE 4687#if EV_CLEANUP_ENABLE
3773void 4688void
3774ev_cleanup_start (EV_P_ ev_cleanup *w) 4689ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3775{ 4690{
3776 if (expect_false (ev_is_active (w))) 4691 if (expect_false (ev_is_active (w)))
3777 return; 4692 return;
3778 4693
3779 EV_FREQUENT_CHECK; 4694 EV_FREQUENT_CHECK;
… …
3786 ev_unref (EV_A); 4701 ev_unref (EV_A);
3787 EV_FREQUENT_CHECK; 4702 EV_FREQUENT_CHECK;
3788} 4703}
3789 4704
3790void 4705void
3791ev_cleanup_stop (EV_P_ ev_cleanup *w) 4706ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3792{ 4707{
3793 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
3794 if (expect_false (!ev_is_active (w))) 4709 if (expect_false (!ev_is_active (w)))
3795 return; 4710 return;
3796 4711
… …
3810} 4725}
3811#endif 4726#endif
3812 4727
3813#if EV_ASYNC_ENABLE 4728#if EV_ASYNC_ENABLE
3814void 4729void
3815ev_async_start (EV_P_ ev_async *w) 4730ev_async_start (EV_P_ ev_async *w) EV_THROW
3816{ 4731{
3817 if (expect_false (ev_is_active (w))) 4732 if (expect_false (ev_is_active (w)))
3818 return; 4733 return;
3819 4734
3820 w->sent = 0; 4735 w->sent = 0;
… …
3829 4744
3830 EV_FREQUENT_CHECK; 4745 EV_FREQUENT_CHECK;
3831} 4746}
3832 4747
3833void 4748void
3834ev_async_stop (EV_P_ ev_async *w) 4749ev_async_stop (EV_P_ ev_async *w) EV_THROW
3835{ 4750{
3836 clear_pending (EV_A_ (W)w); 4751 clear_pending (EV_A_ (W)w);
3837 if (expect_false (!ev_is_active (w))) 4752 if (expect_false (!ev_is_active (w)))
3838 return; 4753 return;
3839 4754
… …
3850 4765
3851 EV_FREQUENT_CHECK; 4766 EV_FREQUENT_CHECK;
3852} 4767}
3853 4768
3854void 4769void
3855ev_async_send (EV_P_ ev_async *w) 4770ev_async_send (EV_P_ ev_async *w) EV_THROW
3856{ 4771{
3857 w->sent = 1; 4772 w->sent = 1;
3858 evpipe_write (EV_A_ &async_pending); 4773 evpipe_write (EV_A_ &async_pending);
3859} 4774}
3860#endif 4775#endif
… …
3897 4812
3898 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4813 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3899} 4814}
3900 4815
3901void 4816void
3902ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4817ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3903{ 4818{
3904 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4819 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3905 4820
3906 if (expect_false (!once)) 4821 if (expect_false (!once))
3907 { 4822 {
… …
3929 4844
3930/*****************************************************************************/ 4845/*****************************************************************************/
3931 4846
3932#if EV_WALK_ENABLE 4847#if EV_WALK_ENABLE
3933void ecb_cold 4848void ecb_cold
3934ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4849ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3935{ 4850{
3936 int i, j; 4851 int i, j;
3937 ev_watcher_list *wl, *wn; 4852 ev_watcher_list *wl, *wn;
3938 4853
3939 if (types & (EV_IO | EV_EMBED)) 4854 if (types & (EV_IO | EV_EMBED))
… …
3982 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4897 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3983#endif 4898#endif
3984 4899
3985#if EV_IDLE_ENABLE 4900#if EV_IDLE_ENABLE
3986 if (types & EV_IDLE) 4901 if (types & EV_IDLE)
3987 for (j = NUMPRI; i--; ) 4902 for (j = NUMPRI; j--; )
3988 for (i = idlecnt [j]; i--; ) 4903 for (i = idlecnt [j]; i--; )
3989 cb (EV_A_ EV_IDLE, idles [j][i]); 4904 cb (EV_A_ EV_IDLE, idles [j][i]);
3990#endif 4905#endif
3991 4906
3992#if EV_FORK_ENABLE 4907#if EV_FORK_ENABLE
… …
4045 4960
4046#if EV_MULTIPLICITY 4961#if EV_MULTIPLICITY
4047 #include "ev_wrap.h" 4962 #include "ev_wrap.h"
4048#endif 4963#endif
4049 4964
4050EV_CPP(})
4051

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