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Comparing libev/ev.c (file contents):
Revision 1.388 by root, Fri Jul 29 12:17:26 2011 UTC vs.
Revision 1.470 by root, Sun Sep 7 13:44:21 2014 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 (©) 2009-2014 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 0x00010003
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/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
577 #endif
578#endif
471 579
472/* many compilers define _GNUC_ to some versions but then only implement 580/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions, 581 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers. 582 * causing enormous grief in return for some better fake benchmark numbers.
475 * or so. 583 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have 584 * 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. 585 * an issue with that they should have done it right in the first place.
478 */ 586 */
479#ifndef ECB_GCC_VERSION 587#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 588 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
481 #define ECB_GCC_VERSION(major,minor) 0 589 #define ECB_GCC_VERSION(major,minor) 0
482 #else 590 #else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484 #endif 592 #endif
485#endif 593#endif
594
595#define ECB_CPP (__cplusplus+0)
596#define ECB_CPP11 (__cplusplus >= 201103L)
597
598#if ECB_CPP
599 #define ECB_C 0
600 #define ECB_STDC_VERSION 0
601#else
602 #define ECB_C 1
603 #define ECB_STDC_VERSION __STDC_VERSION__
604#endif
605
606#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
607#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
608
609#if ECB_CPP
610 #define ECB_EXTERN_C extern "C"
611 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
612 #define ECB_EXTERN_C_END }
613#else
614 #define ECB_EXTERN_C extern
615 #define ECB_EXTERN_C_BEG
616 #define ECB_EXTERN_C_END
617#endif
618
619/*****************************************************************************/
620
621/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
622/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
623
624#if ECB_NO_THREADS
625 #define ECB_NO_SMP 1
626#endif
627
628#if ECB_NO_SMP
629 #define ECB_MEMORY_FENCE do { } while (0)
630#endif
631
632#ifndef ECB_MEMORY_FENCE
633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #if __i386 || __i386__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
652 #elif (__sparc || __sparc__) && !__sparcv8
653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
656 #elif defined __s390__ || defined __s390x__
657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
658 #elif defined __mips__
659 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
660 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
662 #elif defined __alpha__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
664 #elif defined __hppa__
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
667 #elif defined __ia64__
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
669 #elif defined __m68k__
670 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
671 #elif defined __m88k__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
673 #elif defined __sh__
674 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
675 #endif
676 #endif
677#endif
678
679#ifndef ECB_MEMORY_FENCE
680 #if ECB_GCC_VERSION(4,7)
681 /* see comment below (stdatomic.h) about the C11 memory model. */
682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
685
686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
687 * without risking compile time errors with other compilers. We *could*
688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
689 * around this shit time and again.
690 * #elif defined __clang && __has_feature (cxx_atomic)
691 * // see comment below (stdatomic.h) about the C11 memory model.
692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
695 */
696
697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
698 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
701 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
702 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
703 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
704 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
705 #elif _MSC_VER >= 1400 /* VC++ 2005 */
706 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
707 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
708 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
709 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
710 #elif defined _WIN32
711 #include <WinNT.h>
712 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
713 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
714 #include <mbarrier.h>
715 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
716 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
717 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
718 #elif __xlC__
719 #define ECB_MEMORY_FENCE __sync ()
720 #endif
721#endif
722
723#ifndef ECB_MEMORY_FENCE
724 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
725 /* we assume that these memory fences work on all variables/all memory accesses, */
726 /* not just C11 atomics and atomic accesses */
727 #include <stdatomic.h>
728 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
729 /* any fence other than seq_cst, which isn't very efficient for us. */
730 /* Why that is, we don't know - either the C11 memory model is quite useless */
731 /* for most usages, or gcc and clang have a bug */
732 /* I *currently* lean towards the latter, and inefficiently implement */
733 /* all three of ecb's fences as a seq_cst fence */
734 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
735 /* for all __atomic_thread_fence's except seq_cst */
736 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
737 #endif
738#endif
739
740#ifndef ECB_MEMORY_FENCE
741 #if !ECB_AVOID_PTHREADS
742 /*
743 * if you get undefined symbol references to pthread_mutex_lock,
744 * or failure to find pthread.h, then you should implement
745 * the ECB_MEMORY_FENCE operations for your cpu/compiler
746 * OR provide pthread.h and link against the posix thread library
747 * of your system.
748 */
749 #include <pthread.h>
750 #define ECB_NEEDS_PTHREADS 1
751 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
752
753 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
754 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
755 #endif
756#endif
757
758#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
759 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
760#endif
761
762#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
764#endif
765
766/*****************************************************************************/
486 767
487#if __cplusplus 768#if __cplusplus
488 #define ecb_inline static inline 769 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5) 770#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__ 771 #define ecb_inline static __inline__
… …
492 #define ecb_inline static inline 773 #define ecb_inline static inline
493#else 774#else
494 #define ecb_inline static 775 #define ecb_inline static
495#endif 776#endif
496 777
497#ifndef ECB_MEMORY_FENCE
498 #if ECB_GCC_VERSION(2,5) 778#if ECB_GCC_VERSION(3,3)
499 #if __x86 779 #define ecb_restrict __restrict__
500 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 780#elif ECB_C99
501 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 781 #define ecb_restrict restrict
502 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ 782#else
503 #elif __amd64 783 #define ecb_restrict
504 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
505 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
506 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence")
507 #endif
508 #endif 784#endif
509#endif
510 785
511#ifndef ECB_MEMORY_FENCE 786typedef int ecb_bool;
512 #if ECB_GCC_VERSION(4,4)
513 #define ECB_MEMORY_FENCE __sync_synchronize ()
514 #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
515 #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
516 #elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */
517 #define ECB_MEMORY_FENCE do { } while (0)
518 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
519 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
520 #elif defined(_WIN32)
521 #include <WinNT.h>
522 #define ECB_MEMORY_FENCE MemoryBarrier ()
523 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
524 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
525 #endif
526#endif
527 787
528#ifndef ECB_MEMORY_FENCE 788#define ECB_CONCAT_(a, b) a ## b
529 #include <pthread.h> 789#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
790#define ECB_STRINGIFY_(a) # a
791#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
530 792
531 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 793#define ecb_function_ ecb_inline
532 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
533 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
534 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
535#endif
536 794
537#if ECB_GCC_VERSION(3,1) 795#if ECB_GCC_VERSION(3,1)
538 #define ecb_attribute(attrlist) __attribute__(attrlist) 796 #define ecb_attribute(attrlist) __attribute__(attrlist)
539 #define ecb_is_constant(expr) __builtin_constant_p (expr) 797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
540 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
541 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
542#else 800#else
543 #define ecb_attribute(attrlist) 801 #define ecb_attribute(attrlist)
802
803 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806
544 #define ecb_is_constant(expr) 0 807 #define ecb_is_constant(expr) 0
545 #define ecb_expect(expr,value) (expr) 808 #define ecb_expect(expr,value) (expr)
546 #define ecb_prefetch(addr,rw,locality) 809 #define ecb_prefetch(addr,rw,locality)
547#endif 810#endif
548 811
812/* no emulation for ecb_decltype */
813#if ECB_GCC_VERSION(4,5)
814 #define ecb_decltype(x) __decltype(x)
815#elif ECB_GCC_VERSION(3,0)
816 #define ecb_decltype(x) __typeof(x)
817#endif
818
819#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated)
821#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif
824
549#define ecb_noinline ecb_attribute ((__noinline__)) 825#define ecb_noinline ecb_attribute ((__noinline__))
550#define ecb_noreturn ecb_attribute ((__noreturn__))
551#define ecb_unused ecb_attribute ((__unused__)) 826#define ecb_unused ecb_attribute ((__unused__))
552#define ecb_const ecb_attribute ((__const__)) 827#define ecb_const ecb_attribute ((__const__))
553#define ecb_pure ecb_attribute ((__pure__)) 828#define ecb_pure ecb_attribute ((__pure__))
829
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
831#if ECB_C11
832 #define ecb_noreturn _Noreturn
833#else
834 #define ecb_noreturn ecb_attribute ((__noreturn__))
835#endif
554 836
555#if ECB_GCC_VERSION(4,3) 837#if ECB_GCC_VERSION(4,3)
556 #define ecb_artificial ecb_attribute ((__artificial__)) 838 #define ecb_artificial ecb_attribute ((__artificial__))
557 #define ecb_hot ecb_attribute ((__hot__)) 839 #define ecb_hot ecb_attribute ((__hot__))
558 #define ecb_cold ecb_attribute ((__cold__)) 840 #define ecb_cold ecb_attribute ((__cold__))
… …
565/* put around conditional expressions if you are very sure that the */ 847/* put around conditional expressions if you are very sure that the */
566/* expression is mostly true or mostly false. note that these return */ 848/* expression is mostly true or mostly false. note that these return */
567/* booleans, not the expression. */ 849/* booleans, not the expression. */
568#define ecb_expect_false(expr) ecb_expect (!!(expr), 0) 850#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
569#define ecb_expect_true(expr) ecb_expect (!!(expr), 1) 851#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
570/* ecb.h end */ 852/* for compatibility to the rest of the world */
853#define ecb_likely(expr) ecb_expect_true (expr)
854#define ecb_unlikely(expr) ecb_expect_false (expr)
855
856/* count trailing zero bits and count # of one bits */
857#if ECB_GCC_VERSION(3,4)
858 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
859 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
860 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
861 #define ecb_ctz32(x) __builtin_ctz (x)
862 #define ecb_ctz64(x) __builtin_ctzll (x)
863 #define ecb_popcount32(x) __builtin_popcount (x)
864 /* no popcountll */
865#else
866 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
867 ecb_function_ int
868 ecb_ctz32 (uint32_t x)
869 {
870 int r = 0;
871
872 x &= ~x + 1; /* this isolates the lowest bit */
873
874#if ECB_branchless_on_i386
875 r += !!(x & 0xaaaaaaaa) << 0;
876 r += !!(x & 0xcccccccc) << 1;
877 r += !!(x & 0xf0f0f0f0) << 2;
878 r += !!(x & 0xff00ff00) << 3;
879 r += !!(x & 0xffff0000) << 4;
880#else
881 if (x & 0xaaaaaaaa) r += 1;
882 if (x & 0xcccccccc) r += 2;
883 if (x & 0xf0f0f0f0) r += 4;
884 if (x & 0xff00ff00) r += 8;
885 if (x & 0xffff0000) r += 16;
886#endif
887
888 return r;
889 }
890
891 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
892 ecb_function_ int
893 ecb_ctz64 (uint64_t x)
894 {
895 int shift = x & 0xffffffffU ? 0 : 32;
896 return ecb_ctz32 (x >> shift) + shift;
897 }
898
899 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
900 ecb_function_ int
901 ecb_popcount32 (uint32_t x)
902 {
903 x -= (x >> 1) & 0x55555555;
904 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
905 x = ((x >> 4) + x) & 0x0f0f0f0f;
906 x *= 0x01010101;
907
908 return x >> 24;
909 }
910
911 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
912 ecb_function_ int ecb_ld32 (uint32_t x)
913 {
914 int r = 0;
915
916 if (x >> 16) { x >>= 16; r += 16; }
917 if (x >> 8) { x >>= 8; r += 8; }
918 if (x >> 4) { x >>= 4; r += 4; }
919 if (x >> 2) { x >>= 2; r += 2; }
920 if (x >> 1) { r += 1; }
921
922 return r;
923 }
924
925 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
926 ecb_function_ int ecb_ld64 (uint64_t x)
927 {
928 int r = 0;
929
930 if (x >> 32) { x >>= 32; r += 32; }
931
932 return r + ecb_ld32 (x);
933 }
934#endif
935
936ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
937ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
938ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
939ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
940
941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
943{
944 return ( (x * 0x0802U & 0x22110U)
945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
946}
947
948ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
949ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
950{
951 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
952 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
953 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
954 x = ( x >> 8 ) | ( x << 8);
955
956 return x;
957}
958
959ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
960ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
961{
962 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
963 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
964 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
965 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
966 x = ( x >> 16 ) | ( x << 16);
967
968 return x;
969}
970
971/* popcount64 is only available on 64 bit cpus as gcc builtin */
972/* so for this version we are lazy */
973ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
974ecb_function_ int
975ecb_popcount64 (uint64_t x)
976{
977 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
978}
979
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
988
989ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
990ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
991ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
992ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
993ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
994ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
995ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
996ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
997
998#if ECB_GCC_VERSION(4,3)
999 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1000 #define ecb_bswap32(x) __builtin_bswap32 (x)
1001 #define ecb_bswap64(x) __builtin_bswap64 (x)
1002#else
1003 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
1004 ecb_function_ uint16_t
1005 ecb_bswap16 (uint16_t x)
1006 {
1007 return ecb_rotl16 (x, 8);
1008 }
1009
1010 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
1011 ecb_function_ uint32_t
1012 ecb_bswap32 (uint32_t x)
1013 {
1014 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1015 }
1016
1017 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
1018 ecb_function_ uint64_t
1019 ecb_bswap64 (uint64_t x)
1020 {
1021 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1022 }
1023#endif
1024
1025#if ECB_GCC_VERSION(4,5)
1026 #define ecb_unreachable() __builtin_unreachable ()
1027#else
1028 /* this seems to work fine, but gcc always emits a warning for it :/ */
1029 ecb_inline void ecb_unreachable (void) ecb_noreturn;
1030 ecb_inline void ecb_unreachable (void) { }
1031#endif
1032
1033/* try to tell the compiler that some condition is definitely true */
1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1035
1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
1037ecb_inline unsigned char
1038ecb_byteorder_helper (void)
1039{
1040 /* the union code still generates code under pressure in gcc, */
1041 /* but less than using pointers, and always seems to */
1042 /* successfully return a constant. */
1043 /* the reason why we have this horrible preprocessor mess */
1044 /* is to avoid it in all cases, at least on common architectures */
1045 /* or when using a recent enough gcc version (>= 4.6) */
1046#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1047 return 0x44;
1048#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1049 return 0x44;
1050#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1051 return 0x11;
1052#else
1053 union
1054 {
1055 uint32_t i;
1056 uint8_t c;
1057 } u = { 0x11223344 };
1058 return u.c;
1059#endif
1060}
1061
1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1065ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1066
1067#if ECB_GCC_VERSION(3,0) || ECB_C99
1068 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1069#else
1070 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1071#endif
1072
1073#if __cplusplus
1074 template<typename T>
1075 static inline T ecb_div_rd (T val, T div)
1076 {
1077 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1078 }
1079 template<typename T>
1080 static inline T ecb_div_ru (T val, T div)
1081 {
1082 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1083 }
1084#else
1085 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1086 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1087#endif
1088
1089#if ecb_cplusplus_does_not_suck
1090 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1091 template<typename T, int N>
1092 static inline int ecb_array_length (const T (&arr)[N])
1093 {
1094 return N;
1095 }
1096#else
1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1098#endif
1099
1100/*******************************************************************************/
1101/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1102
1103/* basically, everything uses "ieee pure-endian" floating point numbers */
1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1105#if 0 \
1106 || __i386 || __i386__ \
1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1109 || defined __s390__ || defined __s390x__ \
1110 || defined __mips__ \
1111 || defined __alpha__ \
1112 || defined __hppa__ \
1113 || defined __ia64__ \
1114 || defined __m68k__ \
1115 || defined __m88k__ \
1116 || defined __sh__ \
1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__
1120 #define ECB_STDFP 1
1121 #include <string.h> /* for memcpy */
1122#else
1123 #define ECB_STDFP 0
1124#endif
1125
1126#ifndef ECB_NO_LIBM
1127
1128 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1129
1130 /* only the oldest of old doesn't have this one. solaris. */
1131 #ifdef INFINITY
1132 #define ECB_INFINITY INFINITY
1133 #else
1134 #define ECB_INFINITY HUGE_VAL
1135 #endif
1136
1137 #ifdef NAN
1138 #define ECB_NAN NAN
1139 #else
1140 #define ECB_NAN ECB_INFINITY
1141 #endif
1142
1143 /* converts an ieee half/binary16 to a float */
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1145 ecb_function_ float
1146 ecb_binary16_to_float (uint16_t x)
1147 {
1148 int e = (x >> 10) & 0x1f;
1149 int m = x & 0x3ff;
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1159
1160 /* convert a float to ieee single/binary32 */
1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1162 ecb_function_ uint32_t
1163 ecb_float_to_binary32 (float x)
1164 {
1165 uint32_t r;
1166
1167 #if ECB_STDFP
1168 memcpy (&r, &x, 4);
1169 #else
1170 /* slow emulation, works for anything but -0 */
1171 uint32_t m;
1172 int e;
1173
1174 if (x == 0e0f ) return 0x00000000U;
1175 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1176 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1177 if (x != x ) return 0x7fbfffffU;
1178
1179 m = frexpf (x, &e) * 0x1000000U;
1180
1181 r = m & 0x80000000U;
1182
1183 if (r)
1184 m = -m;
1185
1186 if (e <= -126)
1187 {
1188 m &= 0xffffffU;
1189 m >>= (-125 - e);
1190 e = -126;
1191 }
1192
1193 r |= (e + 126) << 23;
1194 r |= m & 0x7fffffU;
1195 #endif
1196
1197 return r;
1198 }
1199
1200 /* converts an ieee single/binary32 to a float */
1201 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1202 ecb_function_ float
1203 ecb_binary32_to_float (uint32_t x)
1204 {
1205 float r;
1206
1207 #if ECB_STDFP
1208 memcpy (&r, &x, 4);
1209 #else
1210 /* emulation, only works for normals and subnormals and +0 */
1211 int neg = x >> 31;
1212 int e = (x >> 23) & 0xffU;
1213
1214 x &= 0x7fffffU;
1215
1216 if (e)
1217 x |= 0x800000U;
1218 else
1219 e = 1;
1220
1221 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1222 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1223
1224 r = neg ? -r : r;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* convert a double to ieee double/binary64 */
1231 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1232 ecb_function_ uint64_t
1233 ecb_double_to_binary64 (double x)
1234 {
1235 uint64_t r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 8);
1239 #else
1240 /* slow emulation, works for anything but -0 */
1241 uint64_t m;
1242 int e;
1243
1244 if (x == 0e0 ) return 0x0000000000000000U;
1245 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1246 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1247 if (x != x ) return 0X7ff7ffffffffffffU;
1248
1249 m = frexp (x, &e) * 0x20000000000000U;
1250
1251 r = m & 0x8000000000000000;;
1252
1253 if (r)
1254 m = -m;
1255
1256 if (e <= -1022)
1257 {
1258 m &= 0x1fffffffffffffU;
1259 m >>= (-1021 - e);
1260 e = -1022;
1261 }
1262
1263 r |= ((uint64_t)(e + 1022)) << 52;
1264 r |= m & 0xfffffffffffffU;
1265 #endif
1266
1267 return r;
1268 }
1269
1270 /* converts an ieee double/binary64 to a double */
1271 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1272 ecb_function_ double
1273 ecb_binary64_to_double (uint64_t x)
1274 {
1275 double r;
1276
1277 #if ECB_STDFP
1278 memcpy (&r, &x, 8);
1279 #else
1280 /* emulation, only works for normals and subnormals and +0 */
1281 int neg = x >> 63;
1282 int e = (x >> 52) & 0x7ffU;
1283
1284 x &= 0xfffffffffffffU;
1285
1286 if (e)
1287 x |= 0x10000000000000U;
1288 else
1289 e = 1;
1290
1291 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1292 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1293
1294 r = neg ? -r : r;
1295 #endif
1296
1297 return r;
1298 }
1299
1300#endif
1301
1302#endif
1303
1304/* ECB.H END */
1305
1306#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1307/* if your architecture doesn't need memory fences, e.g. because it is
1308 * single-cpu/core, or if you use libev in a project that doesn't use libev
1309 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1310 * libev, in which cases the memory fences become nops.
1311 * alternatively, you can remove this #error and link against libpthread,
1312 * which will then provide the memory fences.
1313 */
1314# error "memory fences not defined for your architecture, please report"
1315#endif
1316
1317#ifndef ECB_MEMORY_FENCE
1318# define ECB_MEMORY_FENCE do { } while (0)
1319# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1320# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1321#endif
571 1322
572#define expect_false(cond) ecb_expect_false (cond) 1323#define expect_false(cond) ecb_expect_false (cond)
573#define expect_true(cond) ecb_expect_true (cond) 1324#define expect_true(cond) ecb_expect_true (cond)
574#define noinline ecb_noinline 1325#define noinline ecb_noinline
575 1326
… …
721{ 1472{
722 write (STDERR_FILENO, msg, strlen (msg)); 1473 write (STDERR_FILENO, msg, strlen (msg));
723} 1474}
724#endif 1475#endif
725 1476
726static void (*syserr_cb)(const char *msg); 1477static void (*syserr_cb)(const char *msg) EV_THROW;
727 1478
728void ecb_cold 1479void ecb_cold
729ev_set_syserr_cb (void (*cb)(const char *msg)) 1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
730{ 1481{
731 syserr_cb = cb; 1482 syserr_cb = cb;
732} 1483}
733 1484
734static void noinline ecb_cold 1485static void noinline ecb_cold
… …
752 abort (); 1503 abort ();
753 } 1504 }
754} 1505}
755 1506
756static void * 1507static void *
757ev_realloc_emul (void *ptr, long size) 1508ev_realloc_emul (void *ptr, long size) EV_THROW
758{ 1509{
759#if __GLIBC__
760 return realloc (ptr, size);
761#else
762 /* some systems, notably openbsd and darwin, fail to properly 1510 /* some systems, notably openbsd and darwin, fail to properly
763 * implement realloc (x, 0) (as required by both ansi c-89 and 1511 * implement realloc (x, 0) (as required by both ansi c-89 and
764 * the single unix specification, so work around them here. 1512 * the single unix specification, so work around them here.
1513 * recently, also (at least) fedora and debian started breaking it,
1514 * despite documenting it otherwise.
765 */ 1515 */
766 1516
767 if (size) 1517 if (size)
768 return realloc (ptr, size); 1518 return realloc (ptr, size);
769 1519
770 free (ptr); 1520 free (ptr);
771 return 0; 1521 return 0;
772#endif
773} 1522}
774 1523
775static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
776 1525
777void ecb_cold 1526void ecb_cold
778ev_set_allocator (void *(*cb)(void *ptr, long size)) 1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
779{ 1528{
780 alloc = cb; 1529 alloc = cb;
781} 1530}
782 1531
783inline_speed void * 1532inline_speed void *
… …
871 #undef VAR 1620 #undef VAR
872 }; 1621 };
873 #include "ev_wrap.h" 1622 #include "ev_wrap.h"
874 1623
875 static struct ev_loop default_loop_struct; 1624 static struct ev_loop default_loop_struct;
876 struct ev_loop *ev_default_loop_ptr; 1625 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
877 1626
878#else 1627#else
879 1628
880 ev_tstamp ev_rt_now; 1629 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
881 #define VAR(name,decl) static decl; 1630 #define VAR(name,decl) static decl;
882 #include "ev_vars.h" 1631 #include "ev_vars.h"
883 #undef VAR 1632 #undef VAR
884 1633
885 static int ev_default_loop_ptr; 1634 static int ev_default_loop_ptr;
… …
900 1649
901/*****************************************************************************/ 1650/*****************************************************************************/
902 1651
903#ifndef EV_HAVE_EV_TIME 1652#ifndef EV_HAVE_EV_TIME
904ev_tstamp 1653ev_tstamp
905ev_time (void) 1654ev_time (void) EV_THROW
906{ 1655{
907#if EV_USE_REALTIME 1656#if EV_USE_REALTIME
908 if (expect_true (have_realtime)) 1657 if (expect_true (have_realtime))
909 { 1658 {
910 struct timespec ts; 1659 struct timespec ts;
… …
934 return ev_time (); 1683 return ev_time ();
935} 1684}
936 1685
937#if EV_MULTIPLICITY 1686#if EV_MULTIPLICITY
938ev_tstamp 1687ev_tstamp
939ev_now (EV_P) 1688ev_now (EV_P) EV_THROW
940{ 1689{
941 return ev_rt_now; 1690 return ev_rt_now;
942} 1691}
943#endif 1692#endif
944 1693
945void 1694void
946ev_sleep (ev_tstamp delay) 1695ev_sleep (ev_tstamp delay) EV_THROW
947{ 1696{
948 if (delay > 0.) 1697 if (delay > 0.)
949 { 1698 {
950#if EV_USE_NANOSLEEP 1699#if EV_USE_NANOSLEEP
951 struct timespec ts; 1700 struct timespec ts;
952 1701
953 EV_TS_SET (ts, delay); 1702 EV_TS_SET (ts, delay);
954 nanosleep (&ts, 0); 1703 nanosleep (&ts, 0);
955#elif defined(_WIN32) 1704#elif defined _WIN32
956 Sleep ((unsigned long)(delay * 1e3)); 1705 Sleep ((unsigned long)(delay * 1e3));
957#else 1706#else
958 struct timeval tv; 1707 struct timeval tv;
959 1708
960 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1709 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
979 1728
980 do 1729 do
981 ncur <<= 1; 1730 ncur <<= 1;
982 while (cnt > ncur); 1731 while (cnt > ncur);
983 1732
984 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1733 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
985 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1734 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
986 { 1735 {
987 ncur *= elem; 1736 ncur *= elem;
988 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1737 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
989 ncur = ncur - sizeof (void *) * 4; 1738 ncur = ncur - sizeof (void *) * 4;
… …
1032pendingcb (EV_P_ ev_prepare *w, int revents) 1781pendingcb (EV_P_ ev_prepare *w, int revents)
1033{ 1782{
1034} 1783}
1035 1784
1036void noinline 1785void noinline
1037ev_feed_event (EV_P_ void *w, int revents) 1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1038{ 1787{
1039 W w_ = (W)w; 1788 W w_ = (W)w;
1040 int pri = ABSPRI (w_); 1789 int pri = ABSPRI (w_);
1041 1790
1042 if (expect_false (w_->pending)) 1791 if (expect_false (w_->pending))
… …
1046 w_->pending = ++pendingcnt [pri]; 1795 w_->pending = ++pendingcnt [pri];
1047 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1796 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1048 pendings [pri][w_->pending - 1].w = w_; 1797 pendings [pri][w_->pending - 1].w = w_;
1049 pendings [pri][w_->pending - 1].events = revents; 1798 pendings [pri][w_->pending - 1].events = revents;
1050 } 1799 }
1800
1801 pendingpri = NUMPRI - 1;
1051} 1802}
1052 1803
1053inline_speed void 1804inline_speed void
1054feed_reverse (EV_P_ W w) 1805feed_reverse (EV_P_ W w)
1055{ 1806{
… …
1101 if (expect_true (!anfd->reify)) 1852 if (expect_true (!anfd->reify))
1102 fd_event_nocheck (EV_A_ fd, revents); 1853 fd_event_nocheck (EV_A_ fd, revents);
1103} 1854}
1104 1855
1105void 1856void
1106ev_feed_fd_event (EV_P_ int fd, int revents) 1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1107{ 1858{
1108 if (fd >= 0 && fd < anfdmax) 1859 if (fd >= 0 && fd < anfdmax)
1109 fd_event_nocheck (EV_A_ fd, revents); 1860 fd_event_nocheck (EV_A_ fd, revents);
1110} 1861}
1111 1862
… …
1430static void noinline ecb_cold 2181static void noinline ecb_cold
1431evpipe_init (EV_P) 2182evpipe_init (EV_P)
1432{ 2183{
1433 if (!ev_is_active (&pipe_w)) 2184 if (!ev_is_active (&pipe_w))
1434 { 2185 {
2186 int fds [2];
2187
1435# if EV_USE_EVENTFD 2188# if EV_USE_EVENTFD
2189 fds [0] = -1;
1436 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2190 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1437 if (evfd < 0 && errno == EINVAL) 2191 if (fds [1] < 0 && errno == EINVAL)
1438 evfd = eventfd (0, 0); 2192 fds [1] = eventfd (0, 0);
1439 2193
1440 if (evfd >= 0) 2194 if (fds [1] < 0)
2195# endif
1441 { 2196 {
2197 while (pipe (fds))
2198 ev_syserr ("(libev) error creating signal/async pipe");
2199
2200 fd_intern (fds [0]);
2201 }
2202
1442 evpipe [0] = -1; 2203 evpipe [0] = fds [0];
1443 fd_intern (evfd); /* doing it twice doesn't hurt */ 2204
1444 ev_io_set (&pipe_w, evfd, EV_READ); 2205 if (evpipe [1] < 0)
2206 evpipe [1] = fds [1]; /* first call, set write fd */
2207 else
2208 {
2209 /* on subsequent calls, do not change evpipe [1] */
2210 /* so that evpipe_write can always rely on its value. */
2211 /* this branch does not do anything sensible on windows, */
2212 /* so must not be executed on windows */
2213
2214 dup2 (fds [1], evpipe [1]);
2215 close (fds [1]);
2216 }
2217
2218 fd_intern (evpipe [1]);
2219
2220 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2221 ev_io_start (EV_A_ &pipe_w);
2222 ev_unref (EV_A); /* watcher should not keep loop alive */
2223 }
2224}
2225
2226inline_speed void
2227evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2228{
2229 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2230
2231 if (expect_true (*flag))
2232 return;
2233
2234 *flag = 1;
2235 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2236
2237 pipe_write_skipped = 1;
2238
2239 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2240
2241 if (pipe_write_wanted)
2242 {
2243 int old_errno;
2244
2245 pipe_write_skipped = 0;
2246 ECB_MEMORY_FENCE_RELEASE;
2247
2248 old_errno = errno; /* save errno because write will clobber it */
2249
2250#if EV_USE_EVENTFD
2251 if (evpipe [0] < 0)
2252 {
2253 uint64_t counter = 1;
2254 write (evpipe [1], &counter, sizeof (uint64_t));
1445 } 2255 }
1446 else 2256 else
1447# endif 2257#endif
1448 { 2258 {
1449 while (pipe (evpipe)) 2259#ifdef _WIN32
1450 ev_syserr ("(libev) error creating signal/async pipe"); 2260 WSABUF buf;
1451 2261 DWORD sent;
1452 fd_intern (evpipe [0]); 2262 buf.buf = &buf;
1453 fd_intern (evpipe [1]); 2263 buf.len = 1;
1454 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1455 } 2265#else
1456
1457 ev_io_start (EV_A_ &pipe_w);
1458 ev_unref (EV_A); /* watcher should not keep loop alive */
1459 }
1460}
1461
1462inline_speed void
1463evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1464{
1465 if (expect_true (*flag))
1466 return;
1467
1468 *flag = 1;
1469
1470 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1471
1472 pipe_write_skipped = 1;
1473
1474 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1475
1476 if (pipe_write_wanted)
1477 {
1478 int old_errno;
1479
1480 pipe_write_skipped = 0; /* just an optimsiation, no fence needed */
1481
1482 old_errno = errno; /* save errno because write will clobber it */
1483
1484#if EV_USE_EVENTFD
1485 if (evfd >= 0)
1486 {
1487 uint64_t counter = 1;
1488 write (evfd, &counter, sizeof (uint64_t));
1489 }
1490 else
1491#endif
1492 {
1493 /* win32 people keep sending patches that change this write() to send() */
1494 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1495 /* so when you think this write should be a send instead, please find out */
1496 /* where your send() is from - it's definitely not the microsoft send, and */
1497 /* tell me. thank you. */
1498 write (evpipe [1], &(evpipe [1]), 1); 2266 write (evpipe [1], &(evpipe [1]), 1);
2267#endif
1499 } 2268 }
1500 2269
1501 errno = old_errno; 2270 errno = old_errno;
1502 } 2271 }
1503} 2272}
… …
1510 int i; 2279 int i;
1511 2280
1512 if (revents & EV_READ) 2281 if (revents & EV_READ)
1513 { 2282 {
1514#if EV_USE_EVENTFD 2283#if EV_USE_EVENTFD
1515 if (evfd >= 0) 2284 if (evpipe [0] < 0)
1516 { 2285 {
1517 uint64_t counter; 2286 uint64_t counter;
1518 read (evfd, &counter, sizeof (uint64_t)); 2287 read (evpipe [1], &counter, sizeof (uint64_t));
1519 } 2288 }
1520 else 2289 else
1521#endif 2290#endif
1522 { 2291 {
1523 char dummy; 2292 char dummy[4];
1524 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2293#ifdef _WIN32
2294 WSABUF buf;
2295 DWORD recvd;
2296 DWORD flags = 0;
2297 buf.buf = dummy;
2298 buf.len = sizeof (dummy);
2299 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2300#else
1525 read (evpipe [0], &dummy, 1); 2301 read (evpipe [0], &dummy, sizeof (dummy));
2302#endif
1526 } 2303 }
1527 } 2304 }
1528 2305
1529 pipe_write_skipped = 0; 2306 pipe_write_skipped = 0;
2307
2308 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1530 2309
1531#if EV_SIGNAL_ENABLE 2310#if EV_SIGNAL_ENABLE
1532 if (sig_pending) 2311 if (sig_pending)
1533 { 2312 {
1534 sig_pending = 0; 2313 sig_pending = 0;
2314
2315 ECB_MEMORY_FENCE;
1535 2316
1536 for (i = EV_NSIG - 1; i--; ) 2317 for (i = EV_NSIG - 1; i--; )
1537 if (expect_false (signals [i].pending)) 2318 if (expect_false (signals [i].pending))
1538 ev_feed_signal_event (EV_A_ i + 1); 2319 ev_feed_signal_event (EV_A_ i + 1);
1539 } 2320 }
… …
1541 2322
1542#if EV_ASYNC_ENABLE 2323#if EV_ASYNC_ENABLE
1543 if (async_pending) 2324 if (async_pending)
1544 { 2325 {
1545 async_pending = 0; 2326 async_pending = 0;
2327
2328 ECB_MEMORY_FENCE;
1546 2329
1547 for (i = asynccnt; i--; ) 2330 for (i = asynccnt; i--; )
1548 if (asyncs [i]->sent) 2331 if (asyncs [i]->sent)
1549 { 2332 {
1550 asyncs [i]->sent = 0; 2333 asyncs [i]->sent = 0;
2334 ECB_MEMORY_FENCE_RELEASE;
1551 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2335 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1552 } 2336 }
1553 } 2337 }
1554#endif 2338#endif
1555} 2339}
1556 2340
1557/*****************************************************************************/ 2341/*****************************************************************************/
1558 2342
1559void 2343void
1560ev_feed_signal (int signum) 2344ev_feed_signal (int signum) EV_THROW
1561{ 2345{
1562#if EV_MULTIPLICITY 2346#if EV_MULTIPLICITY
2347 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE;
1563 EV_P = signals [signum - 1].loop; 2349 EV_A = signals [signum - 1].loop;
1564 2350
1565 if (!EV_A) 2351 if (!EV_A)
1566 return; 2352 return;
1567#endif 2353#endif
1568 2354
1569 if (!ev_active (&pipe_w))
1570 return;
1571
1572 signals [signum - 1].pending = 1; 2355 signals [signum - 1].pending = 1;
1573 evpipe_write (EV_A_ &sig_pending); 2356 evpipe_write (EV_A_ &sig_pending);
1574} 2357}
1575 2358
1576static void 2359static void
… …
1582 2365
1583 ev_feed_signal (signum); 2366 ev_feed_signal (signum);
1584} 2367}
1585 2368
1586void noinline 2369void noinline
1587ev_feed_signal_event (EV_P_ int signum) 2370ev_feed_signal_event (EV_P_ int signum) EV_THROW
1588{ 2371{
1589 WL w; 2372 WL w;
1590 2373
1591 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2374 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1592 return; 2375 return;
1593 2376
1594 --signum; 2377 --signum;
1595 2378
1596#if EV_MULTIPLICITY 2379#if EV_MULTIPLICITY
… …
1600 if (expect_false (signals [signum].loop != EV_A)) 2383 if (expect_false (signals [signum].loop != EV_A))
1601 return; 2384 return;
1602#endif 2385#endif
1603 2386
1604 signals [signum].pending = 0; 2387 signals [signum].pending = 0;
2388 ECB_MEMORY_FENCE_RELEASE;
1605 2389
1606 for (w = signals [signum].head; w; w = w->next) 2390 for (w = signals [signum].head; w; w = w->next)
1607 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2391 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1608} 2392}
1609 2393
… …
1708#if EV_USE_SELECT 2492#if EV_USE_SELECT
1709# include "ev_select.c" 2493# include "ev_select.c"
1710#endif 2494#endif
1711 2495
1712int ecb_cold 2496int ecb_cold
1713ev_version_major (void) 2497ev_version_major (void) EV_THROW
1714{ 2498{
1715 return EV_VERSION_MAJOR; 2499 return EV_VERSION_MAJOR;
1716} 2500}
1717 2501
1718int ecb_cold 2502int ecb_cold
1719ev_version_minor (void) 2503ev_version_minor (void) EV_THROW
1720{ 2504{
1721 return EV_VERSION_MINOR; 2505 return EV_VERSION_MINOR;
1722} 2506}
1723 2507
1724/* return true if we are running with elevated privileges and should ignore env variables */ 2508/* return true if we are running with elevated privileges and should ignore env variables */
… …
1732 || getgid () != getegid (); 2516 || getgid () != getegid ();
1733#endif 2517#endif
1734} 2518}
1735 2519
1736unsigned int ecb_cold 2520unsigned int ecb_cold
1737ev_supported_backends (void) 2521ev_supported_backends (void) EV_THROW
1738{ 2522{
1739 unsigned int flags = 0; 2523 unsigned int flags = 0;
1740 2524
1741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1742 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1746 2530
1747 return flags; 2531 return flags;
1748} 2532}
1749 2533
1750unsigned int ecb_cold 2534unsigned int ecb_cold
1751ev_recommended_backends (void) 2535ev_recommended_backends (void) EV_THROW
1752{ 2536{
1753 unsigned int flags = ev_supported_backends (); 2537 unsigned int flags = ev_supported_backends ();
1754 2538
1755#ifndef __NetBSD__ 2539#ifndef __NetBSD__
1756 /* kqueue is borked on everything but netbsd apparently */ 2540 /* kqueue is borked on everything but netbsd apparently */
… …
1768 2552
1769 return flags; 2553 return flags;
1770} 2554}
1771 2555
1772unsigned int ecb_cold 2556unsigned int ecb_cold
1773ev_embeddable_backends (void) 2557ev_embeddable_backends (void) EV_THROW
1774{ 2558{
1775 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1776 2560
1777 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2561 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1778 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2562 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1780 2564
1781 return flags; 2565 return flags;
1782} 2566}
1783 2567
1784unsigned int 2568unsigned int
1785ev_backend (EV_P) 2569ev_backend (EV_P) EV_THROW
1786{ 2570{
1787 return backend; 2571 return backend;
1788} 2572}
1789 2573
1790#if EV_FEATURE_API 2574#if EV_FEATURE_API
1791unsigned int 2575unsigned int
1792ev_iteration (EV_P) 2576ev_iteration (EV_P) EV_THROW
1793{ 2577{
1794 return loop_count; 2578 return loop_count;
1795} 2579}
1796 2580
1797unsigned int 2581unsigned int
1798ev_depth (EV_P) 2582ev_depth (EV_P) EV_THROW
1799{ 2583{
1800 return loop_depth; 2584 return loop_depth;
1801} 2585}
1802 2586
1803void 2587void
1804ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1805{ 2589{
1806 io_blocktime = interval; 2590 io_blocktime = interval;
1807} 2591}
1808 2592
1809void 2593void
1810ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1811{ 2595{
1812 timeout_blocktime = interval; 2596 timeout_blocktime = interval;
1813} 2597}
1814 2598
1815void 2599void
1816ev_set_userdata (EV_P_ void *data) 2600ev_set_userdata (EV_P_ void *data) EV_THROW
1817{ 2601{
1818 userdata = data; 2602 userdata = data;
1819} 2603}
1820 2604
1821void * 2605void *
1822ev_userdata (EV_P) 2606ev_userdata (EV_P) EV_THROW
1823{ 2607{
1824 return userdata; 2608 return userdata;
1825} 2609}
1826 2610
1827void 2611void
1828ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1829{ 2613{
1830 invoke_cb = invoke_pending_cb; 2614 invoke_cb = invoke_pending_cb;
1831} 2615}
1832 2616
1833void 2617void
1834ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2618ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
1835{ 2619{
1836 release_cb = release; 2620 release_cb = release;
1837 acquire_cb = acquire; 2621 acquire_cb = acquire;
1838} 2622}
1839#endif 2623#endif
1840 2624
1841/* initialise a loop structure, must be zero-initialised */ 2625/* initialise a loop structure, must be zero-initialised */
1842static void noinline ecb_cold 2626static void noinline ecb_cold
1843loop_init (EV_P_ unsigned int flags) 2627loop_init (EV_P_ unsigned int flags) EV_THROW
1844{ 2628{
1845 if (!backend) 2629 if (!backend)
1846 { 2630 {
1847 origflags = flags; 2631 origflags = flags;
1848 2632
… …
1893#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1894 async_pending = 0; 2678 async_pending = 0;
1895#endif 2679#endif
1896 pipe_write_skipped = 0; 2680 pipe_write_skipped = 0;
1897 pipe_write_wanted = 0; 2681 pipe_write_wanted = 0;
2682 evpipe [0] = -1;
2683 evpipe [1] = -1;
1898#if EV_USE_INOTIFY 2684#if EV_USE_INOTIFY
1899 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2685 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1900#endif 2686#endif
1901#if EV_USE_SIGNALFD 2687#if EV_USE_SIGNALFD
1902 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2688 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
1953 EV_INVOKE_PENDING; 2739 EV_INVOKE_PENDING;
1954 } 2740 }
1955#endif 2741#endif
1956 2742
1957#if EV_CHILD_ENABLE 2743#if EV_CHILD_ENABLE
1958 if (ev_is_active (&childev)) 2744 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1959 { 2745 {
1960 ev_ref (EV_A); /* child watcher */ 2746 ev_ref (EV_A); /* child watcher */
1961 ev_signal_stop (EV_A_ &childev); 2747 ev_signal_stop (EV_A_ &childev);
1962 } 2748 }
1963#endif 2749#endif
… …
1965 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
1966 { 2752 {
1967 /*ev_ref (EV_A);*/ 2753 /*ev_ref (EV_A);*/
1968 /*ev_io_stop (EV_A_ &pipe_w);*/ 2754 /*ev_io_stop (EV_A_ &pipe_w);*/
1969 2755
1970#if EV_USE_EVENTFD
1971 if (evfd >= 0)
1972 close (evfd);
1973#endif
1974
1975 if (evpipe [0] >= 0)
1976 {
1977 EV_WIN32_CLOSE_FD (evpipe [0]); 2756 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1978 EV_WIN32_CLOSE_FD (evpipe [1]); 2757 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1979 }
1980 } 2758 }
1981 2759
1982#if EV_USE_SIGNALFD 2760#if EV_USE_SIGNALFD
1983 if (ev_is_active (&sigfd_w)) 2761 if (ev_is_active (&sigfd_w))
1984 close (sigfd); 2762 close (sigfd);
… …
2070#endif 2848#endif
2071#if EV_USE_INOTIFY 2849#if EV_USE_INOTIFY
2072 infy_fork (EV_A); 2850 infy_fork (EV_A);
2073#endif 2851#endif
2074 2852
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2075 if (ev_is_active (&pipe_w)) 2854 if (ev_is_active (&pipe_w))
2076 { 2855 {
2077 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2856 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2078 2857
2079 ev_ref (EV_A); 2858 ev_ref (EV_A);
2080 ev_io_stop (EV_A_ &pipe_w); 2859 ev_io_stop (EV_A_ &pipe_w);
2081 2860
2082#if EV_USE_EVENTFD
2083 if (evfd >= 0)
2084 close (evfd);
2085#endif
2086
2087 if (evpipe [0] >= 0) 2861 if (evpipe [0] >= 0)
2088 {
2089 EV_WIN32_CLOSE_FD (evpipe [0]); 2862 EV_WIN32_CLOSE_FD (evpipe [0]);
2090 EV_WIN32_CLOSE_FD (evpipe [1]);
2091 }
2092 2863
2093#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2094 evpipe_init (EV_A); 2864 evpipe_init (EV_A);
2095 /* now iterate over everything, in case we missed something */ 2865 /* iterate over everything, in case we missed something before */
2096 pipecb (EV_A_ &pipe_w, EV_READ); 2866 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2097#endif
2098 } 2867 }
2868#endif
2099 2869
2100 postfork = 0; 2870 postfork = 0;
2101} 2871}
2102 2872
2103#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
2104 2874
2105struct ev_loop * ecb_cold 2875struct ev_loop * ecb_cold
2106ev_loop_new (unsigned int flags) 2876ev_loop_new (unsigned int flags) EV_THROW
2107{ 2877{
2108 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2109 2879
2110 memset (EV_A, 0, sizeof (struct ev_loop)); 2880 memset (EV_A, 0, sizeof (struct ev_loop));
2111 loop_init (EV_A_ flags); 2881 loop_init (EV_A_ flags);
… …
2155} 2925}
2156#endif 2926#endif
2157 2927
2158#if EV_FEATURE_API 2928#if EV_FEATURE_API
2159void ecb_cold 2929void ecb_cold
2160ev_verify (EV_P) 2930ev_verify (EV_P) EV_THROW
2161{ 2931{
2162#if EV_VERIFY 2932#if EV_VERIFY
2163 int i; 2933 int i;
2164 WL w; 2934 WL w, w2;
2165 2935
2166 assert (activecnt >= -1); 2936 assert (activecnt >= -1);
2167 2937
2168 assert (fdchangemax >= fdchangecnt); 2938 assert (fdchangemax >= fdchangecnt);
2169 for (i = 0; i < fdchangecnt; ++i) 2939 for (i = 0; i < fdchangecnt; ++i)
2170 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2940 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2171 2941
2172 assert (anfdmax >= 0); 2942 assert (anfdmax >= 0);
2173 for (i = 0; i < anfdmax; ++i) 2943 for (i = 0; i < anfdmax; ++i)
2944 {
2945 int j = 0;
2946
2174 for (w = anfds [i].head; w; w = w->next) 2947 for (w = w2 = anfds [i].head; w; w = w->next)
2175 { 2948 {
2176 verify_watcher (EV_A_ (W)w); 2949 verify_watcher (EV_A_ (W)w);
2950
2951 if (j++ & 1)
2952 {
2953 assert (("libev: io watcher list contains a loop", w != w2));
2954 w2 = w2->next;
2955 }
2956
2177 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2957 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2178 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2958 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2179 } 2959 }
2960 }
2180 2961
2181 assert (timermax >= timercnt); 2962 assert (timermax >= timercnt);
2182 verify_heap (EV_A_ timers, timercnt); 2963 verify_heap (EV_A_ timers, timercnt);
2183 2964
2184#if EV_PERIODIC_ENABLE 2965#if EV_PERIODIC_ENABLE
… …
2234#if EV_MULTIPLICITY 3015#if EV_MULTIPLICITY
2235struct ev_loop * ecb_cold 3016struct ev_loop * ecb_cold
2236#else 3017#else
2237int 3018int
2238#endif 3019#endif
2239ev_default_loop (unsigned int flags) 3020ev_default_loop (unsigned int flags) EV_THROW
2240{ 3021{
2241 if (!ev_default_loop_ptr) 3022 if (!ev_default_loop_ptr)
2242 { 3023 {
2243#if EV_MULTIPLICITY 3024#if EV_MULTIPLICITY
2244 EV_P = ev_default_loop_ptr = &default_loop_struct; 3025 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2263 3044
2264 return ev_default_loop_ptr; 3045 return ev_default_loop_ptr;
2265} 3046}
2266 3047
2267void 3048void
2268ev_loop_fork (EV_P) 3049ev_loop_fork (EV_P) EV_THROW
2269{ 3050{
2270 postfork = 1; /* must be in line with ev_default_fork */ 3051 postfork = 1;
2271} 3052}
2272 3053
2273/*****************************************************************************/ 3054/*****************************************************************************/
2274 3055
2275void 3056void
… …
2277{ 3058{
2278 EV_CB_INVOKE ((W)w, revents); 3059 EV_CB_INVOKE ((W)w, revents);
2279} 3060}
2280 3061
2281unsigned int 3062unsigned int
2282ev_pending_count (EV_P) 3063ev_pending_count (EV_P) EV_THROW
2283{ 3064{
2284 int pri; 3065 int pri;
2285 unsigned int count = 0; 3066 unsigned int count = 0;
2286 3067
2287 for (pri = NUMPRI; pri--; ) 3068 for (pri = NUMPRI; pri--; )
… …
2291} 3072}
2292 3073
2293void noinline 3074void noinline
2294ev_invoke_pending (EV_P) 3075ev_invoke_pending (EV_P)
2295{ 3076{
2296 int pri; 3077 pendingpri = NUMPRI;
2297 3078
2298 for (pri = NUMPRI; pri--; ) 3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3080 {
3081 --pendingpri;
3082
2299 while (pendingcnt [pri]) 3083 while (pendingcnt [pendingpri])
2300 { 3084 {
2301 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2302 3086
2303 p->w->pending = 0; 3087 p->w->pending = 0;
2304 EV_CB_INVOKE (p->w, p->events); 3088 EV_CB_INVOKE (p->w, p->events);
2305 EV_FREQUENT_CHECK; 3089 EV_FREQUENT_CHECK;
2306 } 3090 }
3091 }
2307} 3092}
2308 3093
2309#if EV_IDLE_ENABLE 3094#if EV_IDLE_ENABLE
2310/* make idle watchers pending. this handles the "call-idle */ 3095/* make idle watchers pending. this handles the "call-idle */
2311/* only when higher priorities are idle" logic */ 3096/* only when higher priorities are idle" logic */
… …
2401{ 3186{
2402 EV_FREQUENT_CHECK; 3187 EV_FREQUENT_CHECK;
2403 3188
2404 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3189 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2405 { 3190 {
2406 int feed_count = 0;
2407
2408 do 3191 do
2409 { 3192 {
2410 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3193 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2411 3194
2412 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3195 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2546 3329
2547 mn_now = ev_rt_now; 3330 mn_now = ev_rt_now;
2548 } 3331 }
2549} 3332}
2550 3333
2551void 3334int
2552ev_run (EV_P_ int flags) 3335ev_run (EV_P_ int flags)
2553{ 3336{
2554#if EV_FEATURE_API 3337#if EV_FEATURE_API
2555 ++loop_depth; 3338 ++loop_depth;
2556#endif 3339#endif
… …
2617 time_update (EV_A_ 1e100); 3400 time_update (EV_A_ 1e100);
2618 3401
2619 /* from now on, we want a pipe-wake-up */ 3402 /* from now on, we want a pipe-wake-up */
2620 pipe_write_wanted = 1; 3403 pipe_write_wanted = 1;
2621 3404
2622 ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */ 3405 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2623 3406
2624 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3407 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2625 { 3408 {
2626 waittime = MAX_BLOCKTIME; 3409 waittime = MAX_BLOCKTIME;
2627 3410
… …
2669#endif 3452#endif
2670 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3453 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2671 backend_poll (EV_A_ waittime); 3454 backend_poll (EV_A_ waittime);
2672 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3455 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2673 3456
2674 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3457 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2675 3458
3459 ECB_MEMORY_FENCE_ACQUIRE;
2676 if (pipe_write_skipped) 3460 if (pipe_write_skipped)
2677 { 3461 {
2678 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3462 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2679 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3463 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2680 } 3464 }
… …
2713 loop_done = EVBREAK_CANCEL; 3497 loop_done = EVBREAK_CANCEL;
2714 3498
2715#if EV_FEATURE_API 3499#if EV_FEATURE_API
2716 --loop_depth; 3500 --loop_depth;
2717#endif 3501#endif
3502
3503 return activecnt;
2718} 3504}
2719 3505
2720void 3506void
2721ev_break (EV_P_ int how) 3507ev_break (EV_P_ int how) EV_THROW
2722{ 3508{
2723 loop_done = how; 3509 loop_done = how;
2724} 3510}
2725 3511
2726void 3512void
2727ev_ref (EV_P) 3513ev_ref (EV_P) EV_THROW
2728{ 3514{
2729 ++activecnt; 3515 ++activecnt;
2730} 3516}
2731 3517
2732void 3518void
2733ev_unref (EV_P) 3519ev_unref (EV_P) EV_THROW
2734{ 3520{
2735 --activecnt; 3521 --activecnt;
2736} 3522}
2737 3523
2738void 3524void
2739ev_now_update (EV_P) 3525ev_now_update (EV_P) EV_THROW
2740{ 3526{
2741 time_update (EV_A_ 1e100); 3527 time_update (EV_A_ 1e100);
2742} 3528}
2743 3529
2744void 3530void
2745ev_suspend (EV_P) 3531ev_suspend (EV_P) EV_THROW
2746{ 3532{
2747 ev_now_update (EV_A); 3533 ev_now_update (EV_A);
2748} 3534}
2749 3535
2750void 3536void
2751ev_resume (EV_P) 3537ev_resume (EV_P) EV_THROW
2752{ 3538{
2753 ev_tstamp mn_prev = mn_now; 3539 ev_tstamp mn_prev = mn_now;
2754 3540
2755 ev_now_update (EV_A); 3541 ev_now_update (EV_A);
2756 timers_reschedule (EV_A_ mn_now - mn_prev); 3542 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2795 w->pending = 0; 3581 w->pending = 0;
2796 } 3582 }
2797} 3583}
2798 3584
2799int 3585int
2800ev_clear_pending (EV_P_ void *w) 3586ev_clear_pending (EV_P_ void *w) EV_THROW
2801{ 3587{
2802 W w_ = (W)w; 3588 W w_ = (W)w;
2803 int pending = w_->pending; 3589 int pending = w_->pending;
2804 3590
2805 if (expect_true (pending)) 3591 if (expect_true (pending))
… …
2838} 3624}
2839 3625
2840/*****************************************************************************/ 3626/*****************************************************************************/
2841 3627
2842void noinline 3628void noinline
2843ev_io_start (EV_P_ ev_io *w) 3629ev_io_start (EV_P_ ev_io *w) EV_THROW
2844{ 3630{
2845 int fd = w->fd; 3631 int fd = w->fd;
2846 3632
2847 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
2848 return; 3634 return;
… …
2854 3640
2855 ev_start (EV_A_ (W)w, 1); 3641 ev_start (EV_A_ (W)w, 1);
2856 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3642 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2857 wlist_add (&anfds[fd].head, (WL)w); 3643 wlist_add (&anfds[fd].head, (WL)w);
2858 3644
3645 /* common bug, apparently */
3646 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3647
2859 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3648 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2860 w->events &= ~EV__IOFDSET; 3649 w->events &= ~EV__IOFDSET;
2861 3650
2862 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2863} 3652}
2864 3653
2865void noinline 3654void noinline
2866ev_io_stop (EV_P_ ev_io *w) 3655ev_io_stop (EV_P_ ev_io *w) EV_THROW
2867{ 3656{
2868 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2869 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2870 return; 3659 return;
2871 3660
… …
2880 3669
2881 EV_FREQUENT_CHECK; 3670 EV_FREQUENT_CHECK;
2882} 3671}
2883 3672
2884void noinline 3673void noinline
2885ev_timer_start (EV_P_ ev_timer *w) 3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2886{ 3675{
2887 if (expect_false (ev_is_active (w))) 3676 if (expect_false (ev_is_active (w)))
2888 return; 3677 return;
2889 3678
2890 ev_at (w) += mn_now; 3679 ev_at (w) += mn_now;
… …
2904 3693
2905 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3694 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2906} 3695}
2907 3696
2908void noinline 3697void noinline
2909ev_timer_stop (EV_P_ ev_timer *w) 3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2910{ 3699{
2911 clear_pending (EV_A_ (W)w); 3700 clear_pending (EV_A_ (W)w);
2912 if (expect_false (!ev_is_active (w))) 3701 if (expect_false (!ev_is_active (w)))
2913 return; 3702 return;
2914 3703
… …
2934 3723
2935 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
2936} 3725}
2937 3726
2938void noinline 3727void noinline
2939ev_timer_again (EV_P_ ev_timer *w) 3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2940{ 3729{
2941 EV_FREQUENT_CHECK; 3730 EV_FREQUENT_CHECK;
3731
3732 clear_pending (EV_A_ (W)w);
2942 3733
2943 if (ev_is_active (w)) 3734 if (ev_is_active (w))
2944 { 3735 {
2945 if (w->repeat) 3736 if (w->repeat)
2946 { 3737 {
… …
2959 3750
2960 EV_FREQUENT_CHECK; 3751 EV_FREQUENT_CHECK;
2961} 3752}
2962 3753
2963ev_tstamp 3754ev_tstamp
2964ev_timer_remaining (EV_P_ ev_timer *w) 3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2965{ 3756{
2966 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2967} 3758}
2968 3759
2969#if EV_PERIODIC_ENABLE 3760#if EV_PERIODIC_ENABLE
2970void noinline 3761void noinline
2971ev_periodic_start (EV_P_ ev_periodic *w) 3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2972{ 3763{
2973 if (expect_false (ev_is_active (w))) 3764 if (expect_false (ev_is_active (w)))
2974 return; 3765 return;
2975 3766
2976 if (w->reschedule_cb) 3767 if (w->reschedule_cb)
… …
2996 3787
2997 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3788 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2998} 3789}
2999 3790
3000void noinline 3791void noinline
3001ev_periodic_stop (EV_P_ ev_periodic *w) 3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3002{ 3793{
3003 clear_pending (EV_A_ (W)w); 3794 clear_pending (EV_A_ (W)w);
3004 if (expect_false (!ev_is_active (w))) 3795 if (expect_false (!ev_is_active (w)))
3005 return; 3796 return;
3006 3797
… …
3024 3815
3025 EV_FREQUENT_CHECK; 3816 EV_FREQUENT_CHECK;
3026} 3817}
3027 3818
3028void noinline 3819void noinline
3029ev_periodic_again (EV_P_ ev_periodic *w) 3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3030{ 3821{
3031 /* TODO: use adjustheap and recalculation */ 3822 /* TODO: use adjustheap and recalculation */
3032 ev_periodic_stop (EV_A_ w); 3823 ev_periodic_stop (EV_A_ w);
3033 ev_periodic_start (EV_A_ w); 3824 ev_periodic_start (EV_A_ w);
3034} 3825}
… …
3039#endif 3830#endif
3040 3831
3041#if EV_SIGNAL_ENABLE 3832#if EV_SIGNAL_ENABLE
3042 3833
3043void noinline 3834void noinline
3044ev_signal_start (EV_P_ ev_signal *w) 3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3045{ 3836{
3046 if (expect_false (ev_is_active (w))) 3837 if (expect_false (ev_is_active (w)))
3047 return; 3838 return;
3048 3839
3049 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3840 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3051#if EV_MULTIPLICITY 3842#if EV_MULTIPLICITY
3052 assert (("libev: a signal must not be attached to two different loops", 3843 assert (("libev: a signal must not be attached to two different loops",
3053 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3844 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3054 3845
3055 signals [w->signum - 1].loop = EV_A; 3846 signals [w->signum - 1].loop = EV_A;
3847 ECB_MEMORY_FENCE_RELEASE;
3056#endif 3848#endif
3057 3849
3058 EV_FREQUENT_CHECK; 3850 EV_FREQUENT_CHECK;
3059 3851
3060#if EV_USE_SIGNALFD 3852#if EV_USE_SIGNALFD
… …
3120 3912
3121 EV_FREQUENT_CHECK; 3913 EV_FREQUENT_CHECK;
3122} 3914}
3123 3915
3124void noinline 3916void noinline
3125ev_signal_stop (EV_P_ ev_signal *w) 3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3126{ 3918{
3127 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
3128 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
3129 return; 3921 return;
3130 3922
… …
3161#endif 3953#endif
3162 3954
3163#if EV_CHILD_ENABLE 3955#if EV_CHILD_ENABLE
3164 3956
3165void 3957void
3166ev_child_start (EV_P_ ev_child *w) 3958ev_child_start (EV_P_ ev_child *w) EV_THROW
3167{ 3959{
3168#if EV_MULTIPLICITY 3960#if EV_MULTIPLICITY
3169 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3961 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3170#endif 3962#endif
3171 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
… …
3178 3970
3179 EV_FREQUENT_CHECK; 3971 EV_FREQUENT_CHECK;
3180} 3972}
3181 3973
3182void 3974void
3183ev_child_stop (EV_P_ ev_child *w) 3975ev_child_stop (EV_P_ ev_child *w) EV_THROW
3184{ 3976{
3185 clear_pending (EV_A_ (W)w); 3977 clear_pending (EV_A_ (W)w);
3186 if (expect_false (!ev_is_active (w))) 3978 if (expect_false (!ev_is_active (w)))
3187 return; 3979 return;
3188 3980
… …
3215# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3216 4008
3217static void noinline 4009static void noinline
3218infy_add (EV_P_ ev_stat *w) 4010infy_add (EV_P_ ev_stat *w)
3219{ 4011{
3220 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); 4012 w->wd = inotify_add_watch (fs_fd, w->path,
4013 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4014 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4015 | IN_DONT_FOLLOW | IN_MASK_ADD);
3221 4016
3222 if (w->wd >= 0) 4017 if (w->wd >= 0)
3223 { 4018 {
3224 struct statfs sfs; 4019 struct statfs sfs;
3225 4020
… …
3229 4024
3230 if (!fs_2625) 4025 if (!fs_2625)
3231 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4026 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3232 else if (!statfs (w->path, &sfs) 4027 else if (!statfs (w->path, &sfs)
3233 && (sfs.f_type == 0x1373 /* devfs */ 4028 && (sfs.f_type == 0x1373 /* devfs */
4029 || sfs.f_type == 0x4006 /* fat */
4030 || sfs.f_type == 0x4d44 /* msdos */
3234 || sfs.f_type == 0xEF53 /* ext2/3 */ 4031 || sfs.f_type == 0xEF53 /* ext2/3 */
4032 || sfs.f_type == 0x72b6 /* jffs2 */
4033 || sfs.f_type == 0x858458f6 /* ramfs */
4034 || sfs.f_type == 0x5346544e /* ntfs */
3235 || sfs.f_type == 0x3153464a /* jfs */ 4035 || sfs.f_type == 0x3153464a /* jfs */
4036 || sfs.f_type == 0x9123683e /* btrfs */
3236 || sfs.f_type == 0x52654973 /* reiser3 */ 4037 || sfs.f_type == 0x52654973 /* reiser3 */
3237 || sfs.f_type == 0x01021994 /* tempfs */ 4038 || sfs.f_type == 0x01021994 /* tmpfs */
3238 || sfs.f_type == 0x58465342 /* xfs */)) 4039 || sfs.f_type == 0x58465342 /* xfs */))
3239 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4040 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3240 else 4041 else
3241 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4042 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3242 } 4043 }
… …
3355} 4156}
3356 4157
3357inline_size int 4158inline_size int
3358infy_newfd (void) 4159infy_newfd (void)
3359{ 4160{
3360#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4161#if defined IN_CLOEXEC && defined IN_NONBLOCK
3361 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4162 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3362 if (fd >= 0) 4163 if (fd >= 0)
3363 return fd; 4164 return fd;
3364#endif 4165#endif
3365 return inotify_init (); 4166 return inotify_init ();
… …
3440#else 4241#else
3441# define EV_LSTAT(p,b) lstat (p, b) 4242# define EV_LSTAT(p,b) lstat (p, b)
3442#endif 4243#endif
3443 4244
3444void 4245void
3445ev_stat_stat (EV_P_ ev_stat *w) 4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3446{ 4247{
3447 if (lstat (w->path, &w->attr) < 0) 4248 if (lstat (w->path, &w->attr) < 0)
3448 w->attr.st_nlink = 0; 4249 w->attr.st_nlink = 0;
3449 else if (!w->attr.st_nlink) 4250 else if (!w->attr.st_nlink)
3450 w->attr.st_nlink = 1; 4251 w->attr.st_nlink = 1;
… …
3489 ev_feed_event (EV_A_ w, EV_STAT); 4290 ev_feed_event (EV_A_ w, EV_STAT);
3490 } 4291 }
3491} 4292}
3492 4293
3493void 4294void
3494ev_stat_start (EV_P_ ev_stat *w) 4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3495{ 4296{
3496 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3497 return; 4298 return;
3498 4299
3499 ev_stat_stat (EV_A_ w); 4300 ev_stat_stat (EV_A_ w);
… …
3520 4321
3521 EV_FREQUENT_CHECK; 4322 EV_FREQUENT_CHECK;
3522} 4323}
3523 4324
3524void 4325void
3525ev_stat_stop (EV_P_ ev_stat *w) 4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3526{ 4327{
3527 clear_pending (EV_A_ (W)w); 4328 clear_pending (EV_A_ (W)w);
3528 if (expect_false (!ev_is_active (w))) 4329 if (expect_false (!ev_is_active (w)))
3529 return; 4330 return;
3530 4331
… …
3546} 4347}
3547#endif 4348#endif
3548 4349
3549#if EV_IDLE_ENABLE 4350#if EV_IDLE_ENABLE
3550void 4351void
3551ev_idle_start (EV_P_ ev_idle *w) 4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3552{ 4353{
3553 if (expect_false (ev_is_active (w))) 4354 if (expect_false (ev_is_active (w)))
3554 return; 4355 return;
3555 4356
3556 pri_adjust (EV_A_ (W)w); 4357 pri_adjust (EV_A_ (W)w);
… …
3569 4370
3570 EV_FREQUENT_CHECK; 4371 EV_FREQUENT_CHECK;
3571} 4372}
3572 4373
3573void 4374void
3574ev_idle_stop (EV_P_ ev_idle *w) 4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3575{ 4376{
3576 clear_pending (EV_A_ (W)w); 4377 clear_pending (EV_A_ (W)w);
3577 if (expect_false (!ev_is_active (w))) 4378 if (expect_false (!ev_is_active (w)))
3578 return; 4379 return;
3579 4380
… …
3593} 4394}
3594#endif 4395#endif
3595 4396
3596#if EV_PREPARE_ENABLE 4397#if EV_PREPARE_ENABLE
3597void 4398void
3598ev_prepare_start (EV_P_ ev_prepare *w) 4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3599{ 4400{
3600 if (expect_false (ev_is_active (w))) 4401 if (expect_false (ev_is_active (w)))
3601 return; 4402 return;
3602 4403
3603 EV_FREQUENT_CHECK; 4404 EV_FREQUENT_CHECK;
… …
3608 4409
3609 EV_FREQUENT_CHECK; 4410 EV_FREQUENT_CHECK;
3610} 4411}
3611 4412
3612void 4413void
3613ev_prepare_stop (EV_P_ ev_prepare *w) 4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3614{ 4415{
3615 clear_pending (EV_A_ (W)w); 4416 clear_pending (EV_A_ (W)w);
3616 if (expect_false (!ev_is_active (w))) 4417 if (expect_false (!ev_is_active (w)))
3617 return; 4418 return;
3618 4419
… …
3631} 4432}
3632#endif 4433#endif
3633 4434
3634#if EV_CHECK_ENABLE 4435#if EV_CHECK_ENABLE
3635void 4436void
3636ev_check_start (EV_P_ ev_check *w) 4437ev_check_start (EV_P_ ev_check *w) EV_THROW
3637{ 4438{
3638 if (expect_false (ev_is_active (w))) 4439 if (expect_false (ev_is_active (w)))
3639 return; 4440 return;
3640 4441
3641 EV_FREQUENT_CHECK; 4442 EV_FREQUENT_CHECK;
… …
3646 4447
3647 EV_FREQUENT_CHECK; 4448 EV_FREQUENT_CHECK;
3648} 4449}
3649 4450
3650void 4451void
3651ev_check_stop (EV_P_ ev_check *w) 4452ev_check_stop (EV_P_ ev_check *w) EV_THROW
3652{ 4453{
3653 clear_pending (EV_A_ (W)w); 4454 clear_pending (EV_A_ (W)w);
3654 if (expect_false (!ev_is_active (w))) 4455 if (expect_false (!ev_is_active (w)))
3655 return; 4456 return;
3656 4457
… …
3669} 4470}
3670#endif 4471#endif
3671 4472
3672#if EV_EMBED_ENABLE 4473#if EV_EMBED_ENABLE
3673void noinline 4474void noinline
3674ev_embed_sweep (EV_P_ ev_embed *w) 4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3675{ 4476{
3676 ev_run (w->other, EVRUN_NOWAIT); 4477 ev_run (w->other, EVRUN_NOWAIT);
3677} 4478}
3678 4479
3679static void 4480static void
… …
3727 ev_idle_stop (EV_A_ idle); 4528 ev_idle_stop (EV_A_ idle);
3728} 4529}
3729#endif 4530#endif
3730 4531
3731void 4532void
3732ev_embed_start (EV_P_ ev_embed *w) 4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3733{ 4534{
3734 if (expect_false (ev_is_active (w))) 4535 if (expect_false (ev_is_active (w)))
3735 return; 4536 return;
3736 4537
3737 { 4538 {
… …
3758 4559
3759 EV_FREQUENT_CHECK; 4560 EV_FREQUENT_CHECK;
3760} 4561}
3761 4562
3762void 4563void
3763ev_embed_stop (EV_P_ ev_embed *w) 4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3764{ 4565{
3765 clear_pending (EV_A_ (W)w); 4566 clear_pending (EV_A_ (W)w);
3766 if (expect_false (!ev_is_active (w))) 4567 if (expect_false (!ev_is_active (w)))
3767 return; 4568 return;
3768 4569
… …
3778} 4579}
3779#endif 4580#endif
3780 4581
3781#if EV_FORK_ENABLE 4582#if EV_FORK_ENABLE
3782void 4583void
3783ev_fork_start (EV_P_ ev_fork *w) 4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3784{ 4585{
3785 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
3786 return; 4587 return;
3787 4588
3788 EV_FREQUENT_CHECK; 4589 EV_FREQUENT_CHECK;
… …
3793 4594
3794 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
3795} 4596}
3796 4597
3797void 4598void
3798ev_fork_stop (EV_P_ ev_fork *w) 4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3799{ 4600{
3800 clear_pending (EV_A_ (W)w); 4601 clear_pending (EV_A_ (W)w);
3801 if (expect_false (!ev_is_active (w))) 4602 if (expect_false (!ev_is_active (w)))
3802 return; 4603 return;
3803 4604
… …
3816} 4617}
3817#endif 4618#endif
3818 4619
3819#if EV_CLEANUP_ENABLE 4620#if EV_CLEANUP_ENABLE
3820void 4621void
3821ev_cleanup_start (EV_P_ ev_cleanup *w) 4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3822{ 4623{
3823 if (expect_false (ev_is_active (w))) 4624 if (expect_false (ev_is_active (w)))
3824 return; 4625 return;
3825 4626
3826 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
… …
3833 ev_unref (EV_A); 4634 ev_unref (EV_A);
3834 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
3835} 4636}
3836 4637
3837void 4638void
3838ev_cleanup_stop (EV_P_ ev_cleanup *w) 4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3839{ 4640{
3840 clear_pending (EV_A_ (W)w); 4641 clear_pending (EV_A_ (W)w);
3841 if (expect_false (!ev_is_active (w))) 4642 if (expect_false (!ev_is_active (w)))
3842 return; 4643 return;
3843 4644
… …
3857} 4658}
3858#endif 4659#endif
3859 4660
3860#if EV_ASYNC_ENABLE 4661#if EV_ASYNC_ENABLE
3861void 4662void
3862ev_async_start (EV_P_ ev_async *w) 4663ev_async_start (EV_P_ ev_async *w) EV_THROW
3863{ 4664{
3864 if (expect_false (ev_is_active (w))) 4665 if (expect_false (ev_is_active (w)))
3865 return; 4666 return;
3866 4667
3867 w->sent = 0; 4668 w->sent = 0;
… …
3876 4677
3877 EV_FREQUENT_CHECK; 4678 EV_FREQUENT_CHECK;
3878} 4679}
3879 4680
3880void 4681void
3881ev_async_stop (EV_P_ ev_async *w) 4682ev_async_stop (EV_P_ ev_async *w) EV_THROW
3882{ 4683{
3883 clear_pending (EV_A_ (W)w); 4684 clear_pending (EV_A_ (W)w);
3884 if (expect_false (!ev_is_active (w))) 4685 if (expect_false (!ev_is_active (w)))
3885 return; 4686 return;
3886 4687
… …
3897 4698
3898 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
3899} 4700}
3900 4701
3901void 4702void
3902ev_async_send (EV_P_ ev_async *w) 4703ev_async_send (EV_P_ ev_async *w) EV_THROW
3903{ 4704{
3904 w->sent = 1; 4705 w->sent = 1;
3905 evpipe_write (EV_A_ &async_pending); 4706 evpipe_write (EV_A_ &async_pending);
3906} 4707}
3907#endif 4708#endif
… …
3944 4745
3945 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4746 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3946} 4747}
3947 4748
3948void 4749void
3949ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4750ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3950{ 4751{
3951 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4752 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3952 4753
3953 if (expect_false (!once)) 4754 if (expect_false (!once))
3954 { 4755 {
… …
3976 4777
3977/*****************************************************************************/ 4778/*****************************************************************************/
3978 4779
3979#if EV_WALK_ENABLE 4780#if EV_WALK_ENABLE
3980void ecb_cold 4781void ecb_cold
3981ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4782ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3982{ 4783{
3983 int i, j; 4784 int i, j;
3984 ev_watcher_list *wl, *wn; 4785 ev_watcher_list *wl, *wn;
3985 4786
3986 if (types & (EV_IO | EV_EMBED)) 4787 if (types & (EV_IO | EV_EMBED))
… …
4029 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4830 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
4030#endif 4831#endif
4031 4832
4032#if EV_IDLE_ENABLE 4833#if EV_IDLE_ENABLE
4033 if (types & EV_IDLE) 4834 if (types & EV_IDLE)
4034 for (j = NUMPRI; i--; ) 4835 for (j = NUMPRI; j--; )
4035 for (i = idlecnt [j]; i--; ) 4836 for (i = idlecnt [j]; i--; )
4036 cb (EV_A_ EV_IDLE, idles [j][i]); 4837 cb (EV_A_ EV_IDLE, idles [j][i]);
4037#endif 4838#endif
4038 4839
4039#if EV_FORK_ENABLE 4840#if EV_FORK_ENABLE
… …
4092 4893
4093#if EV_MULTIPLICITY 4894#if EV_MULTIPLICITY
4094 #include "ev_wrap.h" 4895 #include "ev_wrap.h"
4095#endif 4896#endif
4096 4897
4097EV_CPP(})
4098

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