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Comparing libev/ev.c (file contents):
Revision 1.419 by root, Thu Apr 12 04:10:15 2012 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) 2007,2008,2009,2010,2011,2012 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
201# include <sys/wait.h> 201# include <sys/wait.h>
202# include <unistd.h> 202# include <unistd.h>
203#else 203#else
204# include <io.h> 204# include <io.h>
205# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
206# include <windows.h> 207# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
209# endif 210# endif
210# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
240#elif defined SIGARRAYSIZE 241#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined _sys_nsig 243#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else 245#else
245# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif 247#endif
250 248
251#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
253#endif 251#endif
254 252
255#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
256# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258# else 256# else
259# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
258# endif
259#endif
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
260# endif 267# endif
261#endif 268#endif
262 269
263#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
356 363
357#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 366#endif
360 367
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
361/* 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, */
362/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 387# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
369# else 392# else
372# endif 395# endif
373#endif 396#endif
374 397
375/* 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 */
376 399
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
383#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
386#endif 403#endif
387 404
408/* 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 */
409# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
412# endif 429# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 430#endif
418 431
419#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
420/* 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 */
421# include <stdint.h> 434# include <stdint.h>
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */ 492/* ECB.H BEGIN */
480/* 493/*
481 * libecb - http://software.schmorp.de/pkg/libecb 494 * libecb - http://software.schmorp.de/pkg/libecb
482 * 495 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta 497 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved. 498 * All rights reserved.
486 * 499 *
487 * Redistribution and use in source and binary forms, with or without modifica- 500 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met: 501 * tion, are permitted provided that the following conditions are met:
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE. 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.
507 */ 531 */
508 532
509#ifndef ECB_H 533#ifndef ECB_H
510#define ECB_H 534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010003
511 538
512#ifdef _WIN32 539#ifdef _WIN32
513 typedef signed char int8_t; 540 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 542 typedef signed short int16_t;
521 typedef unsigned long long uint64_t; 548 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 549 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 550 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 551 typedef unsigned __int64 uint64_t;
525 #endif 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
526#else 562#else
527 #include <inttypes.h> 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
528#endif 578#endif
529 579
530/* many compilers define _GNUC_ to some versions but then only implement 580/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 581 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 582 * causing enormous grief in return for some better fake benchmark numbers.
540 #else 590 #else
541 #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)))
542 #endif 592 #endif
543#endif 593#endif
544 594
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
545/*****************************************************************************/ 619/*****************************************************************************/
546 620
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 621/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 622/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 623
550#if ECB_NO_THREADS 624#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 625 #define ECB_NO_SMP 1
552#endif 626#endif
553 627
554#if ECB_NO_THREADS || ECB_NO_SMP 628#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 629 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 630#endif
557 631
558#ifndef ECB_MEMORY_FENCE 632#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 634 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
576 #elif __sparc || __sparc__ 652 #elif (__sparc || __sparc__) && !__sparcv8
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__ 656 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__ 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. */
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
584 #elif defined __alpha__ 662 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 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")
586 #endif 675 #endif
587 #endif 676 #endif
588#endif 677#endif
589 678
590#ifndef ECB_MEMORY_FENCE 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
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize () 698 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 699 #elif _MSC_VER >= 1500 /* VC++ 2008 */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 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()
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 705 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 706 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 707 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 708 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 709 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
609 #define ECB_MEMORY_FENCE __sync () 719 #define ECB_MEMORY_FENCE __sync ()
610 #endif 720 #endif
611#endif 721#endif
612 722
613#ifndef ECB_MEMORY_FENCE 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
614 #if !ECB_AVOID_PTHREADS 741 #if !ECB_AVOID_PTHREADS
615 /* 742 /*
616 * if you get undefined symbol references to pthread_mutex_lock, 743 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement 744 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler 745 * the ECB_MEMORY_FENCE operations for your cpu/compiler
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif 764#endif
638 765
639/*****************************************************************************/ 766/*****************************************************************************/
640 767
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus 768#if __cplusplus
644 #define ecb_inline static inline 769 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5) 770#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__ 771 #define ecb_inline static __inline__
647#elif ECB_C99 772#elif ECB_C99
672 #define ecb_is_constant(expr) __builtin_constant_p (expr) 797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
673 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
674 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
675#else 800#else
676 #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
677 #define ecb_is_constant(expr) 0 807 #define ecb_is_constant(expr) 0
678 #define ecb_expect(expr,value) (expr) 808 #define ecb_expect(expr,value) (expr)
679 #define ecb_prefetch(addr,rw,locality) 809 #define ecb_prefetch(addr,rw,locality)
680#endif 810#endif
681 811
684 #define ecb_decltype(x) __decltype(x) 814 #define ecb_decltype(x) __decltype(x)
685#elif ECB_GCC_VERSION(3,0) 815#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x) 816 #define ecb_decltype(x) __typeof(x)
687#endif 817#endif
688 818
819#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated)
821#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif
824
689#define ecb_noinline ecb_attribute ((__noinline__)) 825#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__)) 826#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__)) 827#define ecb_const ecb_attribute ((__const__))
693#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
694 836
695#if ECB_GCC_VERSION(4,3) 837#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__)) 838 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__)) 839 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__)) 840 #define ecb_cold ecb_attribute ((__cold__))
789 931
790 return r + ecb_ld32 (x); 932 return r + ecb_ld32 (x);
791 } 933 }
792#endif 934#endif
793 935
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
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{ 943{
797 return ( (x * 0x0802U & 0x22110U) 944 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
882 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1029 ecb_inline void ecb_unreachable (void) ecb_noreturn;
883 ecb_inline void ecb_unreachable (void) { } 1030 ecb_inline void ecb_unreachable (void) { }
884#endif 1031#endif
885 1032
886/* try to tell the compiler that some condition is definitely true */ 1033/* try to tell the compiler that some condition is definitely true */
887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
888 1035
889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890ecb_inline unsigned char 1037ecb_inline unsigned char
891ecb_byteorder_helper (void) 1038ecb_byteorder_helper (void)
892{ 1039{
893 const uint32_t u = 0x11223344; 1040 /* the union code still generates code under pressure in gcc, */
894 return *(unsigned char *)&u; 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
895} 1060}
896 1061
897ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
930 } 1095 }
931#else 1096#else
932 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933#endif 1098#endif
934 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
935#endif 1302#endif
936 1303
937/* ECB.H END */ 1304/* ECB.H END */
938 1305
939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1306#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1105{ 1472{
1106 write (STDERR_FILENO, msg, strlen (msg)); 1473 write (STDERR_FILENO, msg, strlen (msg));
1107} 1474}
1108#endif 1475#endif
1109 1476
1110static void (*syserr_cb)(const char *msg); 1477static void (*syserr_cb)(const char *msg) EV_THROW;
1111 1478
1112void ecb_cold 1479void ecb_cold
1113ev_set_syserr_cb (void (*cb)(const char *msg)) 1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1114{ 1481{
1115 syserr_cb = cb; 1482 syserr_cb = cb;
1116} 1483}
1117 1484
1118static void noinline ecb_cold 1485static void noinline ecb_cold
1136 abort (); 1503 abort ();
1137 } 1504 }
1138} 1505}
1139 1506
1140static void * 1507static void *
1141ev_realloc_emul (void *ptr, long size) 1508ev_realloc_emul (void *ptr, long size) EV_THROW
1142{ 1509{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
1146 /* some systems, notably openbsd and darwin, fail to properly 1510 /* some systems, notably openbsd and darwin, fail to properly
1147 * 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
1148 * 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.
1149 */ 1515 */
1150 1516
1151 if (size) 1517 if (size)
1152 return realloc (ptr, size); 1518 return realloc (ptr, size);
1153 1519
1154 free (ptr); 1520 free (ptr);
1155 return 0; 1521 return 0;
1156#endif
1157} 1522}
1158 1523
1159static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1160 1525
1161void ecb_cold 1526void ecb_cold
1162ev_set_allocator (void *(*cb)(void *ptr, long size)) 1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1163{ 1528{
1164 alloc = cb; 1529 alloc = cb;
1165} 1530}
1166 1531
1167inline_speed void * 1532inline_speed void *
1284 1649
1285/*****************************************************************************/ 1650/*****************************************************************************/
1286 1651
1287#ifndef EV_HAVE_EV_TIME 1652#ifndef EV_HAVE_EV_TIME
1288ev_tstamp 1653ev_tstamp
1289ev_time (void) 1654ev_time (void) EV_THROW
1290{ 1655{
1291#if EV_USE_REALTIME 1656#if EV_USE_REALTIME
1292 if (expect_true (have_realtime)) 1657 if (expect_true (have_realtime))
1293 { 1658 {
1294 struct timespec ts; 1659 struct timespec ts;
1318 return ev_time (); 1683 return ev_time ();
1319} 1684}
1320 1685
1321#if EV_MULTIPLICITY 1686#if EV_MULTIPLICITY
1322ev_tstamp 1687ev_tstamp
1323ev_now (EV_P) 1688ev_now (EV_P) EV_THROW
1324{ 1689{
1325 return ev_rt_now; 1690 return ev_rt_now;
1326} 1691}
1327#endif 1692#endif
1328 1693
1329void 1694void
1330ev_sleep (ev_tstamp delay) 1695ev_sleep (ev_tstamp delay) EV_THROW
1331{ 1696{
1332 if (delay > 0.) 1697 if (delay > 0.)
1333 { 1698 {
1334#if EV_USE_NANOSLEEP 1699#if EV_USE_NANOSLEEP
1335 struct timespec ts; 1700 struct timespec ts;
1416pendingcb (EV_P_ ev_prepare *w, int revents) 1781pendingcb (EV_P_ ev_prepare *w, int revents)
1417{ 1782{
1418} 1783}
1419 1784
1420void noinline 1785void noinline
1421ev_feed_event (EV_P_ void *w, int revents) 1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1422{ 1787{
1423 W w_ = (W)w; 1788 W w_ = (W)w;
1424 int pri = ABSPRI (w_); 1789 int pri = ABSPRI (w_);
1425 1790
1426 if (expect_false (w_->pending)) 1791 if (expect_false (w_->pending))
1430 w_->pending = ++pendingcnt [pri]; 1795 w_->pending = ++pendingcnt [pri];
1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1796 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1432 pendings [pri][w_->pending - 1].w = w_; 1797 pendings [pri][w_->pending - 1].w = w_;
1433 pendings [pri][w_->pending - 1].events = revents; 1798 pendings [pri][w_->pending - 1].events = revents;
1434 } 1799 }
1800
1801 pendingpri = NUMPRI - 1;
1435} 1802}
1436 1803
1437inline_speed void 1804inline_speed void
1438feed_reverse (EV_P_ W w) 1805feed_reverse (EV_P_ W w)
1439{ 1806{
1485 if (expect_true (!anfd->reify)) 1852 if (expect_true (!anfd->reify))
1486 fd_event_nocheck (EV_A_ fd, revents); 1853 fd_event_nocheck (EV_A_ fd, revents);
1487} 1854}
1488 1855
1489void 1856void
1490ev_feed_fd_event (EV_P_ int fd, int revents) 1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1491{ 1858{
1492 if (fd >= 0 && fd < anfdmax) 1859 if (fd >= 0 && fd < anfdmax)
1493 fd_event_nocheck (EV_A_ fd, revents); 1860 fd_event_nocheck (EV_A_ fd, revents);
1494} 1861}
1495 1862
1814static void noinline ecb_cold 2181static void noinline ecb_cold
1815evpipe_init (EV_P) 2182evpipe_init (EV_P)
1816{ 2183{
1817 if (!ev_is_active (&pipe_w)) 2184 if (!ev_is_active (&pipe_w))
1818 { 2185 {
2186 int fds [2];
2187
1819# if EV_USE_EVENTFD 2188# if EV_USE_EVENTFD
2189 fds [0] = -1;
1820 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2190 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1821 if (evfd < 0 && errno == EINVAL) 2191 if (fds [1] < 0 && errno == EINVAL)
1822 evfd = eventfd (0, 0); 2192 fds [1] = eventfd (0, 0);
1823 2193
1824 if (evfd >= 0) 2194 if (fds [1] < 0)
2195# endif
1825 { 2196 {
2197 while (pipe (fds))
2198 ev_syserr ("(libev) error creating signal/async pipe");
2199
2200 fd_intern (fds [0]);
2201 }
2202
1826 evpipe [0] = -1; 2203 evpipe [0] = fds [0];
1827 fd_intern (evfd); /* doing it twice doesn't hurt */ 2204
1828 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));
1829 } 2255 }
1830 else 2256 else
1831# endif 2257#endif
1832 { 2258 {
1833 while (pipe (evpipe)) 2259#ifdef _WIN32
1834 ev_syserr ("(libev) error creating signal/async pipe"); 2260 WSABUF buf;
1835 2261 DWORD sent;
1836 fd_intern (evpipe [0]); 2262 buf.buf = &buf;
1837 fd_intern (evpipe [1]); 2263 buf.len = 1;
1838 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1839 } 2265#else
1840
1841 ev_io_start (EV_A_ &pipe_w);
1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1843 }
1844}
1845
1846inline_speed void
1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1848{
1849 if (expect_true (*flag))
1850 return;
1851
1852 *flag = 1;
1853
1854 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856 pipe_write_skipped = 1;
1857
1858 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860 if (pipe_write_wanted)
1861 {
1862 int old_errno;
1863
1864 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1865
1866 old_errno = errno; /* save errno because write will clobber it */
1867
1868#if EV_USE_EVENTFD
1869 if (evfd >= 0)
1870 {
1871 uint64_t counter = 1;
1872 write (evfd, &counter, sizeof (uint64_t));
1873 }
1874 else
1875#endif
1876 {
1877 /* win32 people keep sending patches that change this write() to send() */
1878 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1879 /* so when you think this write should be a send instead, please find out */
1880 /* where your send() is from - it's definitely not the microsoft send, and */
1881 /* tell me. thank you. */
1882 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1883 /* check the ev documentation on how to use this flag */
1884 write (evpipe [1], &(evpipe [1]), 1); 2266 write (evpipe [1], &(evpipe [1]), 1);
2267#endif
1885 } 2268 }
1886 2269
1887 errno = old_errno; 2270 errno = old_errno;
1888 } 2271 }
1889} 2272}
1896 int i; 2279 int i;
1897 2280
1898 if (revents & EV_READ) 2281 if (revents & EV_READ)
1899 { 2282 {
1900#if EV_USE_EVENTFD 2283#if EV_USE_EVENTFD
1901 if (evfd >= 0) 2284 if (evpipe [0] < 0)
1902 { 2285 {
1903 uint64_t counter; 2286 uint64_t counter;
1904 read (evfd, &counter, sizeof (uint64_t)); 2287 read (evpipe [1], &counter, sizeof (uint64_t));
1905 } 2288 }
1906 else 2289 else
1907#endif 2290#endif
1908 { 2291 {
1909 char dummy; 2292 char dummy[4];
1910 /* 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
1911 read (evpipe [0], &dummy, 1); 2301 read (evpipe [0], &dummy, sizeof (dummy));
2302#endif
1912 } 2303 }
1913 } 2304 }
1914 2305
1915 pipe_write_skipped = 0; 2306 pipe_write_skipped = 0;
2307
2308 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1916 2309
1917#if EV_SIGNAL_ENABLE 2310#if EV_SIGNAL_ENABLE
1918 if (sig_pending) 2311 if (sig_pending)
1919 { 2312 {
1920 sig_pending = 0; 2313 sig_pending = 0;
2314
2315 ECB_MEMORY_FENCE;
1921 2316
1922 for (i = EV_NSIG - 1; i--; ) 2317 for (i = EV_NSIG - 1; i--; )
1923 if (expect_false (signals [i].pending)) 2318 if (expect_false (signals [i].pending))
1924 ev_feed_signal_event (EV_A_ i + 1); 2319 ev_feed_signal_event (EV_A_ i + 1);
1925 } 2320 }
1927 2322
1928#if EV_ASYNC_ENABLE 2323#if EV_ASYNC_ENABLE
1929 if (async_pending) 2324 if (async_pending)
1930 { 2325 {
1931 async_pending = 0; 2326 async_pending = 0;
2327
2328 ECB_MEMORY_FENCE;
1932 2329
1933 for (i = asynccnt; i--; ) 2330 for (i = asynccnt; i--; )
1934 if (asyncs [i]->sent) 2331 if (asyncs [i]->sent)
1935 { 2332 {
1936 asyncs [i]->sent = 0; 2333 asyncs [i]->sent = 0;
2334 ECB_MEMORY_FENCE_RELEASE;
1937 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2335 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1938 } 2336 }
1939 } 2337 }
1940#endif 2338#endif
1941} 2339}
1942 2340
1943/*****************************************************************************/ 2341/*****************************************************************************/
1944 2342
1945void 2343void
1946ev_feed_signal (int signum) 2344ev_feed_signal (int signum) EV_THROW
1947{ 2345{
1948#if EV_MULTIPLICITY 2346#if EV_MULTIPLICITY
2347 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE;
1949 EV_P = signals [signum - 1].loop; 2349 EV_A = signals [signum - 1].loop;
1950 2350
1951 if (!EV_A) 2351 if (!EV_A)
1952 return; 2352 return;
1953#endif 2353#endif
1954 2354
1955 if (!ev_active (&pipe_w))
1956 return;
1957
1958 signals [signum - 1].pending = 1; 2355 signals [signum - 1].pending = 1;
1959 evpipe_write (EV_A_ &sig_pending); 2356 evpipe_write (EV_A_ &sig_pending);
1960} 2357}
1961 2358
1962static void 2359static void
1968 2365
1969 ev_feed_signal (signum); 2366 ev_feed_signal (signum);
1970} 2367}
1971 2368
1972void noinline 2369void noinline
1973ev_feed_signal_event (EV_P_ int signum) 2370ev_feed_signal_event (EV_P_ int signum) EV_THROW
1974{ 2371{
1975 WL w; 2372 WL w;
1976 2373
1977 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2374 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1978 return; 2375 return;
1979 2376
1980 --signum; 2377 --signum;
1981 2378
1982#if EV_MULTIPLICITY 2379#if EV_MULTIPLICITY
1986 if (expect_false (signals [signum].loop != EV_A)) 2383 if (expect_false (signals [signum].loop != EV_A))
1987 return; 2384 return;
1988#endif 2385#endif
1989 2386
1990 signals [signum].pending = 0; 2387 signals [signum].pending = 0;
2388 ECB_MEMORY_FENCE_RELEASE;
1991 2389
1992 for (w = signals [signum].head; w; w = w->next) 2390 for (w = signals [signum].head; w; w = w->next)
1993 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2391 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1994} 2392}
1995 2393
2094#if EV_USE_SELECT 2492#if EV_USE_SELECT
2095# include "ev_select.c" 2493# include "ev_select.c"
2096#endif 2494#endif
2097 2495
2098int ecb_cold 2496int ecb_cold
2099ev_version_major (void) 2497ev_version_major (void) EV_THROW
2100{ 2498{
2101 return EV_VERSION_MAJOR; 2499 return EV_VERSION_MAJOR;
2102} 2500}
2103 2501
2104int ecb_cold 2502int ecb_cold
2105ev_version_minor (void) 2503ev_version_minor (void) EV_THROW
2106{ 2504{
2107 return EV_VERSION_MINOR; 2505 return EV_VERSION_MINOR;
2108} 2506}
2109 2507
2110/* 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 */
2118 || getgid () != getegid (); 2516 || getgid () != getegid ();
2119#endif 2517#endif
2120} 2518}
2121 2519
2122unsigned int ecb_cold 2520unsigned int ecb_cold
2123ev_supported_backends (void) 2521ev_supported_backends (void) EV_THROW
2124{ 2522{
2125 unsigned int flags = 0; 2523 unsigned int flags = 0;
2126 2524
2127 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2128 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2132 2530
2133 return flags; 2531 return flags;
2134} 2532}
2135 2533
2136unsigned int ecb_cold 2534unsigned int ecb_cold
2137ev_recommended_backends (void) 2535ev_recommended_backends (void) EV_THROW
2138{ 2536{
2139 unsigned int flags = ev_supported_backends (); 2537 unsigned int flags = ev_supported_backends ();
2140 2538
2141#ifndef __NetBSD__ 2539#ifndef __NetBSD__
2142 /* kqueue is borked on everything but netbsd apparently */ 2540 /* kqueue is borked on everything but netbsd apparently */
2154 2552
2155 return flags; 2553 return flags;
2156} 2554}
2157 2555
2158unsigned int ecb_cold 2556unsigned int ecb_cold
2159ev_embeddable_backends (void) 2557ev_embeddable_backends (void) EV_THROW
2160{ 2558{
2161 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2162 2560
2163 /* 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 */
2164 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 */
2166 2564
2167 return flags; 2565 return flags;
2168} 2566}
2169 2567
2170unsigned int 2568unsigned int
2171ev_backend (EV_P) 2569ev_backend (EV_P) EV_THROW
2172{ 2570{
2173 return backend; 2571 return backend;
2174} 2572}
2175 2573
2176#if EV_FEATURE_API 2574#if EV_FEATURE_API
2177unsigned int 2575unsigned int
2178ev_iteration (EV_P) 2576ev_iteration (EV_P) EV_THROW
2179{ 2577{
2180 return loop_count; 2578 return loop_count;
2181} 2579}
2182 2580
2183unsigned int 2581unsigned int
2184ev_depth (EV_P) 2582ev_depth (EV_P) EV_THROW
2185{ 2583{
2186 return loop_depth; 2584 return loop_depth;
2187} 2585}
2188 2586
2189void 2587void
2190ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2191{ 2589{
2192 io_blocktime = interval; 2590 io_blocktime = interval;
2193} 2591}
2194 2592
2195void 2593void
2196ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2197{ 2595{
2198 timeout_blocktime = interval; 2596 timeout_blocktime = interval;
2199} 2597}
2200 2598
2201void 2599void
2202ev_set_userdata (EV_P_ void *data) 2600ev_set_userdata (EV_P_ void *data) EV_THROW
2203{ 2601{
2204 userdata = data; 2602 userdata = data;
2205} 2603}
2206 2604
2207void * 2605void *
2208ev_userdata (EV_P) 2606ev_userdata (EV_P) EV_THROW
2209{ 2607{
2210 return userdata; 2608 return userdata;
2211} 2609}
2212 2610
2213void 2611void
2214ev_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
2215{ 2613{
2216 invoke_cb = invoke_pending_cb; 2614 invoke_cb = invoke_pending_cb;
2217} 2615}
2218 2616
2219void 2617void
2220ev_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
2221{ 2619{
2222 release_cb = release; 2620 release_cb = release;
2223 acquire_cb = acquire; 2621 acquire_cb = acquire;
2224} 2622}
2225#endif 2623#endif
2226 2624
2227/* initialise a loop structure, must be zero-initialised */ 2625/* initialise a loop structure, must be zero-initialised */
2228static void noinline ecb_cold 2626static void noinline ecb_cold
2229loop_init (EV_P_ unsigned int flags) 2627loop_init (EV_P_ unsigned int flags) EV_THROW
2230{ 2628{
2231 if (!backend) 2629 if (!backend)
2232 { 2630 {
2233 origflags = flags; 2631 origflags = flags;
2234 2632
2279#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
2280 async_pending = 0; 2678 async_pending = 0;
2281#endif 2679#endif
2282 pipe_write_skipped = 0; 2680 pipe_write_skipped = 0;
2283 pipe_write_wanted = 0; 2681 pipe_write_wanted = 0;
2682 evpipe [0] = -1;
2683 evpipe [1] = -1;
2284#if EV_USE_INOTIFY 2684#if EV_USE_INOTIFY
2285 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2685 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2286#endif 2686#endif
2287#if EV_USE_SIGNALFD 2687#if EV_USE_SIGNALFD
2288 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2688 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2339 EV_INVOKE_PENDING; 2739 EV_INVOKE_PENDING;
2340 } 2740 }
2341#endif 2741#endif
2342 2742
2343#if EV_CHILD_ENABLE 2743#if EV_CHILD_ENABLE
2344 if (ev_is_active (&childev)) 2744 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2345 { 2745 {
2346 ev_ref (EV_A); /* child watcher */ 2746 ev_ref (EV_A); /* child watcher */
2347 ev_signal_stop (EV_A_ &childev); 2747 ev_signal_stop (EV_A_ &childev);
2348 } 2748 }
2349#endif 2749#endif
2351 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
2352 { 2752 {
2353 /*ev_ref (EV_A);*/ 2753 /*ev_ref (EV_A);*/
2354 /*ev_io_stop (EV_A_ &pipe_w);*/ 2754 /*ev_io_stop (EV_A_ &pipe_w);*/
2355 2755
2356#if EV_USE_EVENTFD
2357 if (evfd >= 0)
2358 close (evfd);
2359#endif
2360
2361 if (evpipe [0] >= 0)
2362 {
2363 EV_WIN32_CLOSE_FD (evpipe [0]); 2756 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2364 EV_WIN32_CLOSE_FD (evpipe [1]); 2757 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2365 }
2366 } 2758 }
2367 2759
2368#if EV_USE_SIGNALFD 2760#if EV_USE_SIGNALFD
2369 if (ev_is_active (&sigfd_w)) 2761 if (ev_is_active (&sigfd_w))
2370 close (sigfd); 2762 close (sigfd);
2456#endif 2848#endif
2457#if EV_USE_INOTIFY 2849#if EV_USE_INOTIFY
2458 infy_fork (EV_A); 2850 infy_fork (EV_A);
2459#endif 2851#endif
2460 2852
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2461 if (ev_is_active (&pipe_w)) 2854 if (ev_is_active (&pipe_w))
2462 { 2855 {
2463 /* 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 */
2464 2857
2465 ev_ref (EV_A); 2858 ev_ref (EV_A);
2466 ev_io_stop (EV_A_ &pipe_w); 2859 ev_io_stop (EV_A_ &pipe_w);
2467 2860
2468#if EV_USE_EVENTFD
2469 if (evfd >= 0)
2470 close (evfd);
2471#endif
2472
2473 if (evpipe [0] >= 0) 2861 if (evpipe [0] >= 0)
2474 {
2475 EV_WIN32_CLOSE_FD (evpipe [0]); 2862 EV_WIN32_CLOSE_FD (evpipe [0]);
2476 EV_WIN32_CLOSE_FD (evpipe [1]);
2477 }
2478 2863
2479#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2480 evpipe_init (EV_A); 2864 evpipe_init (EV_A);
2481 /* now iterate over everything, in case we missed something */ 2865 /* iterate over everything, in case we missed something before */
2482 pipecb (EV_A_ &pipe_w, EV_READ); 2866 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2483#endif
2484 } 2867 }
2868#endif
2485 2869
2486 postfork = 0; 2870 postfork = 0;
2487} 2871}
2488 2872
2489#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
2490 2874
2491struct ev_loop * ecb_cold 2875struct ev_loop * ecb_cold
2492ev_loop_new (unsigned int flags) 2876ev_loop_new (unsigned int flags) EV_THROW
2493{ 2877{
2494 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2495 2879
2496 memset (EV_A, 0, sizeof (struct ev_loop)); 2880 memset (EV_A, 0, sizeof (struct ev_loop));
2497 loop_init (EV_A_ flags); 2881 loop_init (EV_A_ flags);
2541} 2925}
2542#endif 2926#endif
2543 2927
2544#if EV_FEATURE_API 2928#if EV_FEATURE_API
2545void ecb_cold 2929void ecb_cold
2546ev_verify (EV_P) 2930ev_verify (EV_P) EV_THROW
2547{ 2931{
2548#if EV_VERIFY 2932#if EV_VERIFY
2549 int i; 2933 int i;
2550 WL w; 2934 WL w, w2;
2551 2935
2552 assert (activecnt >= -1); 2936 assert (activecnt >= -1);
2553 2937
2554 assert (fdchangemax >= fdchangecnt); 2938 assert (fdchangemax >= fdchangecnt);
2555 for (i = 0; i < fdchangecnt; ++i) 2939 for (i = 0; i < fdchangecnt; ++i)
2556 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2940 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2557 2941
2558 assert (anfdmax >= 0); 2942 assert (anfdmax >= 0);
2559 for (i = 0; i < anfdmax; ++i) 2943 for (i = 0; i < anfdmax; ++i)
2944 {
2945 int j = 0;
2946
2560 for (w = anfds [i].head; w; w = w->next) 2947 for (w = w2 = anfds [i].head; w; w = w->next)
2561 { 2948 {
2562 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
2563 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));
2564 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));
2565 } 2959 }
2960 }
2566 2961
2567 assert (timermax >= timercnt); 2962 assert (timermax >= timercnt);
2568 verify_heap (EV_A_ timers, timercnt); 2963 verify_heap (EV_A_ timers, timercnt);
2569 2964
2570#if EV_PERIODIC_ENABLE 2965#if EV_PERIODIC_ENABLE
2620#if EV_MULTIPLICITY 3015#if EV_MULTIPLICITY
2621struct ev_loop * ecb_cold 3016struct ev_loop * ecb_cold
2622#else 3017#else
2623int 3018int
2624#endif 3019#endif
2625ev_default_loop (unsigned int flags) 3020ev_default_loop (unsigned int flags) EV_THROW
2626{ 3021{
2627 if (!ev_default_loop_ptr) 3022 if (!ev_default_loop_ptr)
2628 { 3023 {
2629#if EV_MULTIPLICITY 3024#if EV_MULTIPLICITY
2630 EV_P = ev_default_loop_ptr = &default_loop_struct; 3025 EV_P = ev_default_loop_ptr = &default_loop_struct;
2649 3044
2650 return ev_default_loop_ptr; 3045 return ev_default_loop_ptr;
2651} 3046}
2652 3047
2653void 3048void
2654ev_loop_fork (EV_P) 3049ev_loop_fork (EV_P) EV_THROW
2655{ 3050{
2656 postfork = 1; /* must be in line with ev_default_fork */ 3051 postfork = 1;
2657} 3052}
2658 3053
2659/*****************************************************************************/ 3054/*****************************************************************************/
2660 3055
2661void 3056void
2663{ 3058{
2664 EV_CB_INVOKE ((W)w, revents); 3059 EV_CB_INVOKE ((W)w, revents);
2665} 3060}
2666 3061
2667unsigned int 3062unsigned int
2668ev_pending_count (EV_P) 3063ev_pending_count (EV_P) EV_THROW
2669{ 3064{
2670 int pri; 3065 int pri;
2671 unsigned int count = 0; 3066 unsigned int count = 0;
2672 3067
2673 for (pri = NUMPRI; pri--; ) 3068 for (pri = NUMPRI; pri--; )
2677} 3072}
2678 3073
2679void noinline 3074void noinline
2680ev_invoke_pending (EV_P) 3075ev_invoke_pending (EV_P)
2681{ 3076{
2682 int pri; 3077 pendingpri = NUMPRI;
2683 3078
2684 for (pri = NUMPRI; pri--; ) 3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3080 {
3081 --pendingpri;
3082
2685 while (pendingcnt [pri]) 3083 while (pendingcnt [pendingpri])
2686 { 3084 {
2687 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2688 3086
2689 p->w->pending = 0; 3087 p->w->pending = 0;
2690 EV_CB_INVOKE (p->w, p->events); 3088 EV_CB_INVOKE (p->w, p->events);
2691 EV_FREQUENT_CHECK; 3089 EV_FREQUENT_CHECK;
2692 } 3090 }
3091 }
2693} 3092}
2694 3093
2695#if EV_IDLE_ENABLE 3094#if EV_IDLE_ENABLE
2696/* make idle watchers pending. this handles the "call-idle */ 3095/* make idle watchers pending. this handles the "call-idle */
2697/* only when higher priorities are idle" logic */ 3096/* only when higher priorities are idle" logic */
2787{ 3186{
2788 EV_FREQUENT_CHECK; 3187 EV_FREQUENT_CHECK;
2789 3188
2790 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3189 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2791 { 3190 {
2792 int feed_count = 0;
2793
2794 do 3191 do
2795 { 3192 {
2796 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3193 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2797 3194
2798 /*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)));*/
3057 backend_poll (EV_A_ waittime); 3454 backend_poll (EV_A_ waittime);
3058 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3455 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3059 3456
3060 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3457 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3061 3458
3459 ECB_MEMORY_FENCE_ACQUIRE;
3062 if (pipe_write_skipped) 3460 if (pipe_write_skipped)
3063 { 3461 {
3064 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)));
3065 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3463 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3066 } 3464 }
3104 3502
3105 return activecnt; 3503 return activecnt;
3106} 3504}
3107 3505
3108void 3506void
3109ev_break (EV_P_ int how) 3507ev_break (EV_P_ int how) EV_THROW
3110{ 3508{
3111 loop_done = how; 3509 loop_done = how;
3112} 3510}
3113 3511
3114void 3512void
3115ev_ref (EV_P) 3513ev_ref (EV_P) EV_THROW
3116{ 3514{
3117 ++activecnt; 3515 ++activecnt;
3118} 3516}
3119 3517
3120void 3518void
3121ev_unref (EV_P) 3519ev_unref (EV_P) EV_THROW
3122{ 3520{
3123 --activecnt; 3521 --activecnt;
3124} 3522}
3125 3523
3126void 3524void
3127ev_now_update (EV_P) 3525ev_now_update (EV_P) EV_THROW
3128{ 3526{
3129 time_update (EV_A_ 1e100); 3527 time_update (EV_A_ 1e100);
3130} 3528}
3131 3529
3132void 3530void
3133ev_suspend (EV_P) 3531ev_suspend (EV_P) EV_THROW
3134{ 3532{
3135 ev_now_update (EV_A); 3533 ev_now_update (EV_A);
3136} 3534}
3137 3535
3138void 3536void
3139ev_resume (EV_P) 3537ev_resume (EV_P) EV_THROW
3140{ 3538{
3141 ev_tstamp mn_prev = mn_now; 3539 ev_tstamp mn_prev = mn_now;
3142 3540
3143 ev_now_update (EV_A); 3541 ev_now_update (EV_A);
3144 timers_reschedule (EV_A_ mn_now - mn_prev); 3542 timers_reschedule (EV_A_ mn_now - mn_prev);
3183 w->pending = 0; 3581 w->pending = 0;
3184 } 3582 }
3185} 3583}
3186 3584
3187int 3585int
3188ev_clear_pending (EV_P_ void *w) 3586ev_clear_pending (EV_P_ void *w) EV_THROW
3189{ 3587{
3190 W w_ = (W)w; 3588 W w_ = (W)w;
3191 int pending = w_->pending; 3589 int pending = w_->pending;
3192 3590
3193 if (expect_true (pending)) 3591 if (expect_true (pending))
3226} 3624}
3227 3625
3228/*****************************************************************************/ 3626/*****************************************************************************/
3229 3627
3230void noinline 3628void noinline
3231ev_io_start (EV_P_ ev_io *w) 3629ev_io_start (EV_P_ ev_io *w) EV_THROW
3232{ 3630{
3233 int fd = w->fd; 3631 int fd = w->fd;
3234 3632
3235 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
3236 return; 3634 return;
3242 3640
3243 ev_start (EV_A_ (W)w, 1); 3641 ev_start (EV_A_ (W)w, 1);
3244 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3642 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3245 wlist_add (&anfds[fd].head, (WL)w); 3643 wlist_add (&anfds[fd].head, (WL)w);
3246 3644
3645 /* common bug, apparently */
3646 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3647
3247 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);
3248 w->events &= ~EV__IOFDSET; 3649 w->events &= ~EV__IOFDSET;
3249 3650
3250 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
3251} 3652}
3252 3653
3253void noinline 3654void noinline
3254ev_io_stop (EV_P_ ev_io *w) 3655ev_io_stop (EV_P_ ev_io *w) EV_THROW
3255{ 3656{
3256 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
3257 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
3258 return; 3659 return;
3259 3660
3268 3669
3269 EV_FREQUENT_CHECK; 3670 EV_FREQUENT_CHECK;
3270} 3671}
3271 3672
3272void noinline 3673void noinline
3273ev_timer_start (EV_P_ ev_timer *w) 3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3274{ 3675{
3275 if (expect_false (ev_is_active (w))) 3676 if (expect_false (ev_is_active (w)))
3276 return; 3677 return;
3277 3678
3278 ev_at (w) += mn_now; 3679 ev_at (w) += mn_now;
3292 3693
3293 /*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));*/
3294} 3695}
3295 3696
3296void noinline 3697void noinline
3297ev_timer_stop (EV_P_ ev_timer *w) 3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3298{ 3699{
3299 clear_pending (EV_A_ (W)w); 3700 clear_pending (EV_A_ (W)w);
3300 if (expect_false (!ev_is_active (w))) 3701 if (expect_false (!ev_is_active (w)))
3301 return; 3702 return;
3302 3703
3322 3723
3323 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
3324} 3725}
3325 3726
3326void noinline 3727void noinline
3327ev_timer_again (EV_P_ ev_timer *w) 3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3328{ 3729{
3329 EV_FREQUENT_CHECK; 3730 EV_FREQUENT_CHECK;
3330 3731
3331 clear_pending (EV_A_ (W)w); 3732 clear_pending (EV_A_ (W)w);
3332 3733
3349 3750
3350 EV_FREQUENT_CHECK; 3751 EV_FREQUENT_CHECK;
3351} 3752}
3352 3753
3353ev_tstamp 3754ev_tstamp
3354ev_timer_remaining (EV_P_ ev_timer *w) 3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3355{ 3756{
3356 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3357} 3758}
3358 3759
3359#if EV_PERIODIC_ENABLE 3760#if EV_PERIODIC_ENABLE
3360void noinline 3761void noinline
3361ev_periodic_start (EV_P_ ev_periodic *w) 3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3362{ 3763{
3363 if (expect_false (ev_is_active (w))) 3764 if (expect_false (ev_is_active (w)))
3364 return; 3765 return;
3365 3766
3366 if (w->reschedule_cb) 3767 if (w->reschedule_cb)
3386 3787
3387 /*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));*/
3388} 3789}
3389 3790
3390void noinline 3791void noinline
3391ev_periodic_stop (EV_P_ ev_periodic *w) 3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3392{ 3793{
3393 clear_pending (EV_A_ (W)w); 3794 clear_pending (EV_A_ (W)w);
3394 if (expect_false (!ev_is_active (w))) 3795 if (expect_false (!ev_is_active (w)))
3395 return; 3796 return;
3396 3797
3414 3815
3415 EV_FREQUENT_CHECK; 3816 EV_FREQUENT_CHECK;
3416} 3817}
3417 3818
3418void noinline 3819void noinline
3419ev_periodic_again (EV_P_ ev_periodic *w) 3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3420{ 3821{
3421 /* TODO: use adjustheap and recalculation */ 3822 /* TODO: use adjustheap and recalculation */
3422 ev_periodic_stop (EV_A_ w); 3823 ev_periodic_stop (EV_A_ w);
3423 ev_periodic_start (EV_A_ w); 3824 ev_periodic_start (EV_A_ w);
3424} 3825}
3429#endif 3830#endif
3430 3831
3431#if EV_SIGNAL_ENABLE 3832#if EV_SIGNAL_ENABLE
3432 3833
3433void noinline 3834void noinline
3434ev_signal_start (EV_P_ ev_signal *w) 3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3435{ 3836{
3436 if (expect_false (ev_is_active (w))) 3837 if (expect_false (ev_is_active (w)))
3437 return; 3838 return;
3438 3839
3439 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));
3441#if EV_MULTIPLICITY 3842#if EV_MULTIPLICITY
3442 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",
3443 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3844 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3444 3845
3445 signals [w->signum - 1].loop = EV_A; 3846 signals [w->signum - 1].loop = EV_A;
3847 ECB_MEMORY_FENCE_RELEASE;
3446#endif 3848#endif
3447 3849
3448 EV_FREQUENT_CHECK; 3850 EV_FREQUENT_CHECK;
3449 3851
3450#if EV_USE_SIGNALFD 3852#if EV_USE_SIGNALFD
3510 3912
3511 EV_FREQUENT_CHECK; 3913 EV_FREQUENT_CHECK;
3512} 3914}
3513 3915
3514void noinline 3916void noinline
3515ev_signal_stop (EV_P_ ev_signal *w) 3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3516{ 3918{
3517 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
3518 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
3519 return; 3921 return;
3520 3922
3551#endif 3953#endif
3552 3954
3553#if EV_CHILD_ENABLE 3955#if EV_CHILD_ENABLE
3554 3956
3555void 3957void
3556ev_child_start (EV_P_ ev_child *w) 3958ev_child_start (EV_P_ ev_child *w) EV_THROW
3557{ 3959{
3558#if EV_MULTIPLICITY 3960#if EV_MULTIPLICITY
3559 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));
3560#endif 3962#endif
3561 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
3568 3970
3569 EV_FREQUENT_CHECK; 3971 EV_FREQUENT_CHECK;
3570} 3972}
3571 3973
3572void 3974void
3573ev_child_stop (EV_P_ ev_child *w) 3975ev_child_stop (EV_P_ ev_child *w) EV_THROW
3574{ 3976{
3575 clear_pending (EV_A_ (W)w); 3977 clear_pending (EV_A_ (W)w);
3576 if (expect_false (!ev_is_active (w))) 3978 if (expect_false (!ev_is_active (w)))
3577 return; 3979 return;
3578 3980
3605# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3606 4008
3607static void noinline 4009static void noinline
3608infy_add (EV_P_ ev_stat *w) 4010infy_add (EV_P_ ev_stat *w)
3609{ 4011{
3610 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);
3611 4016
3612 if (w->wd >= 0) 4017 if (w->wd >= 0)
3613 { 4018 {
3614 struct statfs sfs; 4019 struct statfs sfs;
3615 4020
3619 4024
3620 if (!fs_2625) 4025 if (!fs_2625)
3621 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4026 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3622 else if (!statfs (w->path, &sfs) 4027 else if (!statfs (w->path, &sfs)
3623 && (sfs.f_type == 0x1373 /* devfs */ 4028 && (sfs.f_type == 0x1373 /* devfs */
4029 || sfs.f_type == 0x4006 /* fat */
4030 || sfs.f_type == 0x4d44 /* msdos */
3624 || 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 */
3625 || sfs.f_type == 0x3153464a /* jfs */ 4035 || sfs.f_type == 0x3153464a /* jfs */
4036 || sfs.f_type == 0x9123683e /* btrfs */
3626 || sfs.f_type == 0x52654973 /* reiser3 */ 4037 || sfs.f_type == 0x52654973 /* reiser3 */
3627 || sfs.f_type == 0x01021994 /* tempfs */ 4038 || sfs.f_type == 0x01021994 /* tmpfs */
3628 || sfs.f_type == 0x58465342 /* xfs */)) 4039 || sfs.f_type == 0x58465342 /* xfs */))
3629 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4040 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3630 else 4041 else
3631 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 */
3632 } 4043 }
3830#else 4241#else
3831# define EV_LSTAT(p,b) lstat (p, b) 4242# define EV_LSTAT(p,b) lstat (p, b)
3832#endif 4243#endif
3833 4244
3834void 4245void
3835ev_stat_stat (EV_P_ ev_stat *w) 4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3836{ 4247{
3837 if (lstat (w->path, &w->attr) < 0) 4248 if (lstat (w->path, &w->attr) < 0)
3838 w->attr.st_nlink = 0; 4249 w->attr.st_nlink = 0;
3839 else if (!w->attr.st_nlink) 4250 else if (!w->attr.st_nlink)
3840 w->attr.st_nlink = 1; 4251 w->attr.st_nlink = 1;
3879 ev_feed_event (EV_A_ w, EV_STAT); 4290 ev_feed_event (EV_A_ w, EV_STAT);
3880 } 4291 }
3881} 4292}
3882 4293
3883void 4294void
3884ev_stat_start (EV_P_ ev_stat *w) 4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3885{ 4296{
3886 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3887 return; 4298 return;
3888 4299
3889 ev_stat_stat (EV_A_ w); 4300 ev_stat_stat (EV_A_ w);
3910 4321
3911 EV_FREQUENT_CHECK; 4322 EV_FREQUENT_CHECK;
3912} 4323}
3913 4324
3914void 4325void
3915ev_stat_stop (EV_P_ ev_stat *w) 4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3916{ 4327{
3917 clear_pending (EV_A_ (W)w); 4328 clear_pending (EV_A_ (W)w);
3918 if (expect_false (!ev_is_active (w))) 4329 if (expect_false (!ev_is_active (w)))
3919 return; 4330 return;
3920 4331
3936} 4347}
3937#endif 4348#endif
3938 4349
3939#if EV_IDLE_ENABLE 4350#if EV_IDLE_ENABLE
3940void 4351void
3941ev_idle_start (EV_P_ ev_idle *w) 4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3942{ 4353{
3943 if (expect_false (ev_is_active (w))) 4354 if (expect_false (ev_is_active (w)))
3944 return; 4355 return;
3945 4356
3946 pri_adjust (EV_A_ (W)w); 4357 pri_adjust (EV_A_ (W)w);
3959 4370
3960 EV_FREQUENT_CHECK; 4371 EV_FREQUENT_CHECK;
3961} 4372}
3962 4373
3963void 4374void
3964ev_idle_stop (EV_P_ ev_idle *w) 4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3965{ 4376{
3966 clear_pending (EV_A_ (W)w); 4377 clear_pending (EV_A_ (W)w);
3967 if (expect_false (!ev_is_active (w))) 4378 if (expect_false (!ev_is_active (w)))
3968 return; 4379 return;
3969 4380
3983} 4394}
3984#endif 4395#endif
3985 4396
3986#if EV_PREPARE_ENABLE 4397#if EV_PREPARE_ENABLE
3987void 4398void
3988ev_prepare_start (EV_P_ ev_prepare *w) 4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3989{ 4400{
3990 if (expect_false (ev_is_active (w))) 4401 if (expect_false (ev_is_active (w)))
3991 return; 4402 return;
3992 4403
3993 EV_FREQUENT_CHECK; 4404 EV_FREQUENT_CHECK;
3998 4409
3999 EV_FREQUENT_CHECK; 4410 EV_FREQUENT_CHECK;
4000} 4411}
4001 4412
4002void 4413void
4003ev_prepare_stop (EV_P_ ev_prepare *w) 4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4004{ 4415{
4005 clear_pending (EV_A_ (W)w); 4416 clear_pending (EV_A_ (W)w);
4006 if (expect_false (!ev_is_active (w))) 4417 if (expect_false (!ev_is_active (w)))
4007 return; 4418 return;
4008 4419
4021} 4432}
4022#endif 4433#endif
4023 4434
4024#if EV_CHECK_ENABLE 4435#if EV_CHECK_ENABLE
4025void 4436void
4026ev_check_start (EV_P_ ev_check *w) 4437ev_check_start (EV_P_ ev_check *w) EV_THROW
4027{ 4438{
4028 if (expect_false (ev_is_active (w))) 4439 if (expect_false (ev_is_active (w)))
4029 return; 4440 return;
4030 4441
4031 EV_FREQUENT_CHECK; 4442 EV_FREQUENT_CHECK;
4036 4447
4037 EV_FREQUENT_CHECK; 4448 EV_FREQUENT_CHECK;
4038} 4449}
4039 4450
4040void 4451void
4041ev_check_stop (EV_P_ ev_check *w) 4452ev_check_stop (EV_P_ ev_check *w) EV_THROW
4042{ 4453{
4043 clear_pending (EV_A_ (W)w); 4454 clear_pending (EV_A_ (W)w);
4044 if (expect_false (!ev_is_active (w))) 4455 if (expect_false (!ev_is_active (w)))
4045 return; 4456 return;
4046 4457
4059} 4470}
4060#endif 4471#endif
4061 4472
4062#if EV_EMBED_ENABLE 4473#if EV_EMBED_ENABLE
4063void noinline 4474void noinline
4064ev_embed_sweep (EV_P_ ev_embed *w) 4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4065{ 4476{
4066 ev_run (w->other, EVRUN_NOWAIT); 4477 ev_run (w->other, EVRUN_NOWAIT);
4067} 4478}
4068 4479
4069static void 4480static void
4117 ev_idle_stop (EV_A_ idle); 4528 ev_idle_stop (EV_A_ idle);
4118} 4529}
4119#endif 4530#endif
4120 4531
4121void 4532void
4122ev_embed_start (EV_P_ ev_embed *w) 4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4123{ 4534{
4124 if (expect_false (ev_is_active (w))) 4535 if (expect_false (ev_is_active (w)))
4125 return; 4536 return;
4126 4537
4127 { 4538 {
4148 4559
4149 EV_FREQUENT_CHECK; 4560 EV_FREQUENT_CHECK;
4150} 4561}
4151 4562
4152void 4563void
4153ev_embed_stop (EV_P_ ev_embed *w) 4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4154{ 4565{
4155 clear_pending (EV_A_ (W)w); 4566 clear_pending (EV_A_ (W)w);
4156 if (expect_false (!ev_is_active (w))) 4567 if (expect_false (!ev_is_active (w)))
4157 return; 4568 return;
4158 4569
4168} 4579}
4169#endif 4580#endif
4170 4581
4171#if EV_FORK_ENABLE 4582#if EV_FORK_ENABLE
4172void 4583void
4173ev_fork_start (EV_P_ ev_fork *w) 4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4174{ 4585{
4175 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
4176 return; 4587 return;
4177 4588
4178 EV_FREQUENT_CHECK; 4589 EV_FREQUENT_CHECK;
4183 4594
4184 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
4185} 4596}
4186 4597
4187void 4598void
4188ev_fork_stop (EV_P_ ev_fork *w) 4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4189{ 4600{
4190 clear_pending (EV_A_ (W)w); 4601 clear_pending (EV_A_ (W)w);
4191 if (expect_false (!ev_is_active (w))) 4602 if (expect_false (!ev_is_active (w)))
4192 return; 4603 return;
4193 4604
4206} 4617}
4207#endif 4618#endif
4208 4619
4209#if EV_CLEANUP_ENABLE 4620#if EV_CLEANUP_ENABLE
4210void 4621void
4211ev_cleanup_start (EV_P_ ev_cleanup *w) 4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4212{ 4623{
4213 if (expect_false (ev_is_active (w))) 4624 if (expect_false (ev_is_active (w)))
4214 return; 4625 return;
4215 4626
4216 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
4223 ev_unref (EV_A); 4634 ev_unref (EV_A);
4224 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
4225} 4636}
4226 4637
4227void 4638void
4228ev_cleanup_stop (EV_P_ ev_cleanup *w) 4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4229{ 4640{
4230 clear_pending (EV_A_ (W)w); 4641 clear_pending (EV_A_ (W)w);
4231 if (expect_false (!ev_is_active (w))) 4642 if (expect_false (!ev_is_active (w)))
4232 return; 4643 return;
4233 4644
4247} 4658}
4248#endif 4659#endif
4249 4660
4250#if EV_ASYNC_ENABLE 4661#if EV_ASYNC_ENABLE
4251void 4662void
4252ev_async_start (EV_P_ ev_async *w) 4663ev_async_start (EV_P_ ev_async *w) EV_THROW
4253{ 4664{
4254 if (expect_false (ev_is_active (w))) 4665 if (expect_false (ev_is_active (w)))
4255 return; 4666 return;
4256 4667
4257 w->sent = 0; 4668 w->sent = 0;
4266 4677
4267 EV_FREQUENT_CHECK; 4678 EV_FREQUENT_CHECK;
4268} 4679}
4269 4680
4270void 4681void
4271ev_async_stop (EV_P_ ev_async *w) 4682ev_async_stop (EV_P_ ev_async *w) EV_THROW
4272{ 4683{
4273 clear_pending (EV_A_ (W)w); 4684 clear_pending (EV_A_ (W)w);
4274 if (expect_false (!ev_is_active (w))) 4685 if (expect_false (!ev_is_active (w)))
4275 return; 4686 return;
4276 4687
4287 4698
4288 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
4289} 4700}
4290 4701
4291void 4702void
4292ev_async_send (EV_P_ ev_async *w) 4703ev_async_send (EV_P_ ev_async *w) EV_THROW
4293{ 4704{
4294 w->sent = 1; 4705 w->sent = 1;
4295 evpipe_write (EV_A_ &async_pending); 4706 evpipe_write (EV_A_ &async_pending);
4296} 4707}
4297#endif 4708#endif
4334 4745
4335 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));
4336} 4747}
4337 4748
4338void 4749void
4339ev_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
4340{ 4751{
4341 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));
4342 4753
4343 if (expect_false (!once)) 4754 if (expect_false (!once))
4344 { 4755 {
4366 4777
4367/*****************************************************************************/ 4778/*****************************************************************************/
4368 4779
4369#if EV_WALK_ENABLE 4780#if EV_WALK_ENABLE
4370void ecb_cold 4781void ecb_cold
4371ev_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
4372{ 4783{
4373 int i, j; 4784 int i, j;
4374 ev_watcher_list *wl, *wn; 4785 ev_watcher_list *wl, *wn;
4375 4786
4376 if (types & (EV_IO | EV_EMBED)) 4787 if (types & (EV_IO | EV_EMBED))

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