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Comparing libev/ev.c (file contents):
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC vs.
Revision 1.447 by root, Tue Jun 19 12:29:43 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
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
219#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
220 221
221/* 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 */
222 223
223/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
224#if defined (EV_NSIG) 225#if defined EV_NSIG
225/* use what's provided */ 226/* use what's provided */
226#elif defined (NSIG) 227#elif defined NSIG
227# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
228#elif defined(_NSIG) 229#elif defined _NSIG
229# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
230#elif defined (SIGMAX) 231#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
232#elif defined (SIG_MAX) 233#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
234#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
236#elif defined (MAXSIG) 237#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
238#elif defined (MAX_SIG) 239#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
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# error "unable to find value for NSIG, please report"
246/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
259# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
260# endif 261# endif
261#endif 262#endif
262 263
263#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
266# else 267# else
267# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
268# endif 269# endif
269#endif 270#endif
359#endif 360#endif
360 361
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* 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. */ 363/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 365# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
369# else 370# else
395# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
396#endif 397#endif
397 398
398#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 401# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 402# include <sys/select.h>
402# endif 403# endif
403#endif 404#endif
404 405
405#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
412# endif 413# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 414#endif
418 415
419#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 418# include <stdint.h>
507 */ 504 */
508 505
509#ifndef ECB_H 506#ifndef ECB_H
510#define ECB_H 507#define ECB_H
511 508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
512#ifdef _WIN32 512#ifdef _WIN32
513 typedef signed char int8_t; 513 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 514 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 515 typedef signed short int16_t;
516 typedef unsigned short uint16_t; 516 typedef unsigned short uint16_t;
521 typedef unsigned long long uint64_t; 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 524 typedef unsigned __int64 uint64_t;
525 #endif 525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
535 typedef intptr_t ptrdiff_t;
526#else 536#else
527 #include <inttypes.h> 537 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU
539 #define ECB_PTRSIZE 8
540 #else
541 #define ECB_PTRSIZE 4
542 #endif
528#endif 543#endif
529 544
530/* many compilers define _GNUC_ to some versions but then only implement 545/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 546 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 547 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 548 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 549 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place. 550 * an issue with that they should have done it right in the first place.
536 */ 551 */
537#ifndef ECB_GCC_VERSION 552#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 554 #define ECB_GCC_VERSION(major,minor) 0
540 #else 555 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 557 #endif
543#endif 558#endif
544 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L)
565
545/*****************************************************************************/ 566/*****************************************************************************/
546 567
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 568/* 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 */ 569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 570
550#if ECB_NO_THREADS 571#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 572 #define ECB_NO_SMP 1
552#endif 573#endif
553 574
554#if ECB_NO_THREADS || ECB_NO_SMP 575#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 576 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 577#endif
557 578
558#ifndef ECB_MEMORY_FENCE 579#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 581 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 582 #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 */ 583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 587 #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 */ 588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 592 || 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") 593 #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__ ) \ 594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 597 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 601 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 603 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
605 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
584 #endif 612 #endif
585 #endif 613 #endif
586#endif 614#endif
587 615
588#ifndef ECB_MEMORY_FENCE 616#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 624 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 625 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 627 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 630 #elif defined _WIN32
599 #include <WinNT.h> 631 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 634 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 635 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 637 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
638 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync ()
640 #endif
641#endif
642
643#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
606 #endif 655 #endif
607#endif 656#endif
608 657
609#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
610 #if !ECB_AVOID_PTHREADS 659 #if !ECB_AVOID_PTHREADS
622 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 671 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
623 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 672 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
624 #endif 673 #endif
625#endif 674#endif
626 675
627#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 676#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
628 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 677 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
629#endif 678#endif
630 679
631#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
633#endif 682#endif
634 683
635/*****************************************************************************/ 684/*****************************************************************************/
636
637#define ECB_C99 (__STDC_VERSION__ >= 199901L)
638 685
639#if __cplusplus 686#if __cplusplus
640 #define ecb_inline static inline 687 #define ecb_inline static inline
641#elif ECB_GCC_VERSION(2,5) 688#elif ECB_GCC_VERSION(2,5)
642 #define ecb_inline static __inline__ 689 #define ecb_inline static __inline__
681#elif ECB_GCC_VERSION(3,0) 728#elif ECB_GCC_VERSION(3,0)
682 #define ecb_decltype(x) __typeof(x) 729 #define ecb_decltype(x) __typeof(x)
683#endif 730#endif
684 731
685#define ecb_noinline ecb_attribute ((__noinline__)) 732#define ecb_noinline ecb_attribute ((__noinline__))
686#define ecb_noreturn ecb_attribute ((__noreturn__))
687#define ecb_unused ecb_attribute ((__unused__)) 733#define ecb_unused ecb_attribute ((__unused__))
688#define ecb_const ecb_attribute ((__const__)) 734#define ecb_const ecb_attribute ((__const__))
689#define ecb_pure ecb_attribute ((__pure__)) 735#define ecb_pure ecb_attribute ((__pure__))
736
737#if ECB_C11
738 #define ecb_noreturn _Noreturn
739#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif
690 742
691#if ECB_GCC_VERSION(4,3) 743#if ECB_GCC_VERSION(4,3)
692 #define ecb_artificial ecb_attribute ((__artificial__)) 744 #define ecb_artificial ecb_attribute ((__artificial__))
693 #define ecb_hot ecb_attribute ((__hot__)) 745 #define ecb_hot ecb_attribute ((__hot__))
694 #define ecb_cold ecb_attribute ((__cold__)) 746 #define ecb_cold ecb_attribute ((__cold__))
785 837
786 return r + ecb_ld32 (x); 838 return r + ecb_ld32 (x);
787 } 839 }
788#endif 840#endif
789 841
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846
790ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
792{ 849{
793 return ( (x * 0x0802U & 0x22110U) 850 return ( (x * 0x0802U & 0x22110U)
794 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
1101{ 1158{
1102 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
1103} 1160}
1104#endif 1161#endif
1105 1162
1106static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
1107 1164
1108void ecb_cold 1165void ecb_cold
1109ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1110{ 1167{
1111 syserr_cb = cb; 1168 syserr_cb = cb;
1112} 1169}
1113 1170
1114static void noinline ecb_cold 1171static void noinline ecb_cold
1132 abort (); 1189 abort ();
1133 } 1190 }
1134} 1191}
1135 1192
1136static void * 1193static void *
1137ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
1138{ 1195{
1139#if __GLIBC__
1140 return realloc (ptr, size);
1141#else
1142 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
1143 * implement realloc (x, 0) (as required by both ansi c-89 and 1197 * implement realloc (x, 0) (as required by both ansi c-89 and
1144 * the single unix specification, so work around them here. 1198 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it,
1200 * despite documenting it otherwise.
1145 */ 1201 */
1146 1202
1147 if (size) 1203 if (size)
1148 return realloc (ptr, size); 1204 return realloc (ptr, size);
1149 1205
1150 free (ptr); 1206 free (ptr);
1151 return 0; 1207 return 0;
1152#endif
1153} 1208}
1154 1209
1155static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1156 1211
1157void ecb_cold 1212void ecb_cold
1158ev_set_allocator (void *(*cb)(void *ptr, long size)) 1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1159{ 1214{
1160 alloc = cb; 1215 alloc = cb;
1161} 1216}
1162 1217
1163inline_speed void * 1218inline_speed void *
1280 1335
1281/*****************************************************************************/ 1336/*****************************************************************************/
1282 1337
1283#ifndef EV_HAVE_EV_TIME 1338#ifndef EV_HAVE_EV_TIME
1284ev_tstamp 1339ev_tstamp
1285ev_time (void) 1340ev_time (void) EV_THROW
1286{ 1341{
1287#if EV_USE_REALTIME 1342#if EV_USE_REALTIME
1288 if (expect_true (have_realtime)) 1343 if (expect_true (have_realtime))
1289 { 1344 {
1290 struct timespec ts; 1345 struct timespec ts;
1314 return ev_time (); 1369 return ev_time ();
1315} 1370}
1316 1371
1317#if EV_MULTIPLICITY 1372#if EV_MULTIPLICITY
1318ev_tstamp 1373ev_tstamp
1319ev_now (EV_P) 1374ev_now (EV_P) EV_THROW
1320{ 1375{
1321 return ev_rt_now; 1376 return ev_rt_now;
1322} 1377}
1323#endif 1378#endif
1324 1379
1325void 1380void
1326ev_sleep (ev_tstamp delay) 1381ev_sleep (ev_tstamp delay) EV_THROW
1327{ 1382{
1328 if (delay > 0.) 1383 if (delay > 0.)
1329 { 1384 {
1330#if EV_USE_NANOSLEEP 1385#if EV_USE_NANOSLEEP
1331 struct timespec ts; 1386 struct timespec ts;
1332 1387
1333 EV_TS_SET (ts, delay); 1388 EV_TS_SET (ts, delay);
1334 nanosleep (&ts, 0); 1389 nanosleep (&ts, 0);
1335#elif defined(_WIN32) 1390#elif defined _WIN32
1336 Sleep ((unsigned long)(delay * 1e3)); 1391 Sleep ((unsigned long)(delay * 1e3));
1337#else 1392#else
1338 struct timeval tv; 1393 struct timeval tv;
1339 1394
1340 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1412pendingcb (EV_P_ ev_prepare *w, int revents) 1467pendingcb (EV_P_ ev_prepare *w, int revents)
1413{ 1468{
1414} 1469}
1415 1470
1416void noinline 1471void noinline
1417ev_feed_event (EV_P_ void *w, int revents) 1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1418{ 1473{
1419 W w_ = (W)w; 1474 W w_ = (W)w;
1420 int pri = ABSPRI (w_); 1475 int pri = ABSPRI (w_);
1421 1476
1422 if (expect_false (w_->pending)) 1477 if (expect_false (w_->pending))
1426 w_->pending = ++pendingcnt [pri]; 1481 w_->pending = ++pendingcnt [pri];
1427 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1428 pendings [pri][w_->pending - 1].w = w_; 1483 pendings [pri][w_->pending - 1].w = w_;
1429 pendings [pri][w_->pending - 1].events = revents; 1484 pendings [pri][w_->pending - 1].events = revents;
1430 } 1485 }
1486
1487 pendingpri = NUMPRI - 1;
1431} 1488}
1432 1489
1433inline_speed void 1490inline_speed void
1434feed_reverse (EV_P_ W w) 1491feed_reverse (EV_P_ W w)
1435{ 1492{
1481 if (expect_true (!anfd->reify)) 1538 if (expect_true (!anfd->reify))
1482 fd_event_nocheck (EV_A_ fd, revents); 1539 fd_event_nocheck (EV_A_ fd, revents);
1483} 1540}
1484 1541
1485void 1542void
1486ev_feed_fd_event (EV_P_ int fd, int revents) 1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1487{ 1544{
1488 if (fd >= 0 && fd < anfdmax) 1545 if (fd >= 0 && fd < anfdmax)
1489 fd_event_nocheck (EV_A_ fd, revents); 1546 fd_event_nocheck (EV_A_ fd, revents);
1490} 1547}
1491 1548
1840} 1897}
1841 1898
1842inline_speed void 1899inline_speed void
1843evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1900evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1844{ 1901{
1902 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1903
1845 if (expect_true (*flag)) 1904 if (expect_true (*flag))
1846 return; 1905 return;
1847 1906
1848 *flag = 1; 1907 *flag = 1;
1849
1850 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 1908 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1851 1909
1852 pipe_write_skipped = 1; 1910 pipe_write_skipped = 1;
1853 1911
1854 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ 1912 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1855 1913
1856 if (pipe_write_wanted) 1914 if (pipe_write_wanted)
1857 { 1915 {
1858 int old_errno; 1916 int old_errno;
1859 1917
1860 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 1918 pipe_write_skipped = 0;
1919 ECB_MEMORY_FENCE_RELEASE;
1861 1920
1862 old_errno = errno; /* save errno because write will clobber it */ 1921 old_errno = errno; /* save errno because write will clobber it */
1863 1922
1864#if EV_USE_EVENTFD 1923#if EV_USE_EVENTFD
1865 if (evfd >= 0) 1924 if (evfd >= 0)
1868 write (evfd, &counter, sizeof (uint64_t)); 1927 write (evfd, &counter, sizeof (uint64_t));
1869 } 1928 }
1870 else 1929 else
1871#endif 1930#endif
1872 { 1931 {
1873 /* win32 people keep sending patches that change this write() to send() */ 1932#ifdef _WIN32
1874 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1933 WSABUF buf;
1875 /* so when you think this write should be a send instead, please find out */ 1934 DWORD sent;
1876 /* where your send() is from - it's definitely not the microsoft send, and */ 1935 buf.buf = &buf;
1877 /* tell me. thank you. */ 1936 buf.len = 1;
1878 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ 1937 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1879 /* check the ev documentation on how to use this flag */ 1938#else
1880 write (evpipe [1], &(evpipe [1]), 1); 1939 write (evpipe [1], &(evpipe [1]), 1);
1940#endif
1881 } 1941 }
1882 1942
1883 errno = old_errno; 1943 errno = old_errno;
1884 } 1944 }
1885} 1945}
1900 read (evfd, &counter, sizeof (uint64_t)); 1960 read (evfd, &counter, sizeof (uint64_t));
1901 } 1961 }
1902 else 1962 else
1903#endif 1963#endif
1904 { 1964 {
1905 char dummy; 1965 char dummy[4];
1906 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1966#ifdef _WIN32
1967 WSABUF buf;
1968 DWORD recvd;
1969 DWORD flags = 0;
1970 buf.buf = dummy;
1971 buf.len = sizeof (dummy);
1972 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1973#else
1907 read (evpipe [0], &dummy, 1); 1974 read (evpipe [0], &dummy, sizeof (dummy));
1975#endif
1908 } 1976 }
1909 } 1977 }
1910 1978
1911 pipe_write_skipped = 0; 1979 pipe_write_skipped = 0;
1980
1981 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1912 1982
1913#if EV_SIGNAL_ENABLE 1983#if EV_SIGNAL_ENABLE
1914 if (sig_pending) 1984 if (sig_pending)
1915 { 1985 {
1916 sig_pending = 0; 1986 sig_pending = 0;
1987
1988 ECB_MEMORY_FENCE;
1917 1989
1918 for (i = EV_NSIG - 1; i--; ) 1990 for (i = EV_NSIG - 1; i--; )
1919 if (expect_false (signals [i].pending)) 1991 if (expect_false (signals [i].pending))
1920 ev_feed_signal_event (EV_A_ i + 1); 1992 ev_feed_signal_event (EV_A_ i + 1);
1921 } 1993 }
1923 1995
1924#if EV_ASYNC_ENABLE 1996#if EV_ASYNC_ENABLE
1925 if (async_pending) 1997 if (async_pending)
1926 { 1998 {
1927 async_pending = 0; 1999 async_pending = 0;
2000
2001 ECB_MEMORY_FENCE;
1928 2002
1929 for (i = asynccnt; i--; ) 2003 for (i = asynccnt; i--; )
1930 if (asyncs [i]->sent) 2004 if (asyncs [i]->sent)
1931 { 2005 {
1932 asyncs [i]->sent = 0; 2006 asyncs [i]->sent = 0;
2007 ECB_MEMORY_FENCE_RELEASE;
1933 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2008 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1934 } 2009 }
1935 } 2010 }
1936#endif 2011#endif
1937} 2012}
1938 2013
1939/*****************************************************************************/ 2014/*****************************************************************************/
1940 2015
1941void 2016void
1942ev_feed_signal (int signum) 2017ev_feed_signal (int signum) EV_THROW
1943{ 2018{
1944#if EV_MULTIPLICITY 2019#if EV_MULTIPLICITY
1945 EV_P = signals [signum - 1].loop; 2020 EV_P = signals [signum - 1].loop;
1946 2021
1947 if (!EV_A) 2022 if (!EV_A)
1964 2039
1965 ev_feed_signal (signum); 2040 ev_feed_signal (signum);
1966} 2041}
1967 2042
1968void noinline 2043void noinline
1969ev_feed_signal_event (EV_P_ int signum) 2044ev_feed_signal_event (EV_P_ int signum) EV_THROW
1970{ 2045{
1971 WL w; 2046 WL w;
1972 2047
1973 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2048 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1974 return; 2049 return;
1975 2050
1976 --signum; 2051 --signum;
1977 2052
1978#if EV_MULTIPLICITY 2053#if EV_MULTIPLICITY
1982 if (expect_false (signals [signum].loop != EV_A)) 2057 if (expect_false (signals [signum].loop != EV_A))
1983 return; 2058 return;
1984#endif 2059#endif
1985 2060
1986 signals [signum].pending = 0; 2061 signals [signum].pending = 0;
2062 ECB_MEMORY_FENCE_RELEASE;
1987 2063
1988 for (w = signals [signum].head; w; w = w->next) 2064 for (w = signals [signum].head; w; w = w->next)
1989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2065 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1990} 2066}
1991 2067
2090#if EV_USE_SELECT 2166#if EV_USE_SELECT
2091# include "ev_select.c" 2167# include "ev_select.c"
2092#endif 2168#endif
2093 2169
2094int ecb_cold 2170int ecb_cold
2095ev_version_major (void) 2171ev_version_major (void) EV_THROW
2096{ 2172{
2097 return EV_VERSION_MAJOR; 2173 return EV_VERSION_MAJOR;
2098} 2174}
2099 2175
2100int ecb_cold 2176int ecb_cold
2101ev_version_minor (void) 2177ev_version_minor (void) EV_THROW
2102{ 2178{
2103 return EV_VERSION_MINOR; 2179 return EV_VERSION_MINOR;
2104} 2180}
2105 2181
2106/* return true if we are running with elevated privileges and should ignore env variables */ 2182/* return true if we are running with elevated privileges and should ignore env variables */
2114 || getgid () != getegid (); 2190 || getgid () != getegid ();
2115#endif 2191#endif
2116} 2192}
2117 2193
2118unsigned int ecb_cold 2194unsigned int ecb_cold
2119ev_supported_backends (void) 2195ev_supported_backends (void) EV_THROW
2120{ 2196{
2121 unsigned int flags = 0; 2197 unsigned int flags = 0;
2122 2198
2123 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2199 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2124 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2200 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2128 2204
2129 return flags; 2205 return flags;
2130} 2206}
2131 2207
2132unsigned int ecb_cold 2208unsigned int ecb_cold
2133ev_recommended_backends (void) 2209ev_recommended_backends (void) EV_THROW
2134{ 2210{
2135 unsigned int flags = ev_supported_backends (); 2211 unsigned int flags = ev_supported_backends ();
2136 2212
2137#ifndef __NetBSD__ 2213#ifndef __NetBSD__
2138 /* kqueue is borked on everything but netbsd apparently */ 2214 /* kqueue is borked on everything but netbsd apparently */
2150 2226
2151 return flags; 2227 return flags;
2152} 2228}
2153 2229
2154unsigned int ecb_cold 2230unsigned int ecb_cold
2155ev_embeddable_backends (void) 2231ev_embeddable_backends (void) EV_THROW
2156{ 2232{
2157 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2233 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2158 2234
2159 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2235 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2160 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2236 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2162 2238
2163 return flags; 2239 return flags;
2164} 2240}
2165 2241
2166unsigned int 2242unsigned int
2167ev_backend (EV_P) 2243ev_backend (EV_P) EV_THROW
2168{ 2244{
2169 return backend; 2245 return backend;
2170} 2246}
2171 2247
2172#if EV_FEATURE_API 2248#if EV_FEATURE_API
2173unsigned int 2249unsigned int
2174ev_iteration (EV_P) 2250ev_iteration (EV_P) EV_THROW
2175{ 2251{
2176 return loop_count; 2252 return loop_count;
2177} 2253}
2178 2254
2179unsigned int 2255unsigned int
2180ev_depth (EV_P) 2256ev_depth (EV_P) EV_THROW
2181{ 2257{
2182 return loop_depth; 2258 return loop_depth;
2183} 2259}
2184 2260
2185void 2261void
2186ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2262ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2187{ 2263{
2188 io_blocktime = interval; 2264 io_blocktime = interval;
2189} 2265}
2190 2266
2191void 2267void
2192ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2268ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2193{ 2269{
2194 timeout_blocktime = interval; 2270 timeout_blocktime = interval;
2195} 2271}
2196 2272
2197void 2273void
2198ev_set_userdata (EV_P_ void *data) 2274ev_set_userdata (EV_P_ void *data) EV_THROW
2199{ 2275{
2200 userdata = data; 2276 userdata = data;
2201} 2277}
2202 2278
2203void * 2279void *
2204ev_userdata (EV_P) 2280ev_userdata (EV_P) EV_THROW
2205{ 2281{
2206 return userdata; 2282 return userdata;
2207} 2283}
2208 2284
2209void 2285void
2210ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2286ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2211{ 2287{
2212 invoke_cb = invoke_pending_cb; 2288 invoke_cb = invoke_pending_cb;
2213} 2289}
2214 2290
2215void 2291void
2216ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2292ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2217{ 2293{
2218 release_cb = release; 2294 release_cb = release;
2219 acquire_cb = acquire; 2295 acquire_cb = acquire;
2220} 2296}
2221#endif 2297#endif
2222 2298
2223/* initialise a loop structure, must be zero-initialised */ 2299/* initialise a loop structure, must be zero-initialised */
2224static void noinline ecb_cold 2300static void noinline ecb_cold
2225loop_init (EV_P_ unsigned int flags) 2301loop_init (EV_P_ unsigned int flags) EV_THROW
2226{ 2302{
2227 if (!backend) 2303 if (!backend)
2228 { 2304 {
2229 origflags = flags; 2305 origflags = flags;
2230 2306
2335 EV_INVOKE_PENDING; 2411 EV_INVOKE_PENDING;
2336 } 2412 }
2337#endif 2413#endif
2338 2414
2339#if EV_CHILD_ENABLE 2415#if EV_CHILD_ENABLE
2340 if (ev_is_active (&childev)) 2416 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2341 { 2417 {
2342 ev_ref (EV_A); /* child watcher */ 2418 ev_ref (EV_A); /* child watcher */
2343 ev_signal_stop (EV_A_ &childev); 2419 ev_signal_stop (EV_A_ &childev);
2344 } 2420 }
2345#endif 2421#endif
2472 EV_WIN32_CLOSE_FD (evpipe [1]); 2548 EV_WIN32_CLOSE_FD (evpipe [1]);
2473 } 2549 }
2474 2550
2475#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2551#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476 evpipe_init (EV_A); 2552 evpipe_init (EV_A);
2477 /* now iterate over everything, in case we missed something */ 2553 /* iterate over everything, in case we missed something before */
2478 pipecb (EV_A_ &pipe_w, EV_READ); 2554 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2479#endif 2555#endif
2480 } 2556 }
2481 2557
2482 postfork = 0; 2558 postfork = 0;
2483} 2559}
2484 2560
2485#if EV_MULTIPLICITY 2561#if EV_MULTIPLICITY
2486 2562
2487struct ev_loop * ecb_cold 2563struct ev_loop * ecb_cold
2488ev_loop_new (unsigned int flags) 2564ev_loop_new (unsigned int flags) EV_THROW
2489{ 2565{
2490 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2566 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2491 2567
2492 memset (EV_A, 0, sizeof (struct ev_loop)); 2568 memset (EV_A, 0, sizeof (struct ev_loop));
2493 loop_init (EV_A_ flags); 2569 loop_init (EV_A_ flags);
2537} 2613}
2538#endif 2614#endif
2539 2615
2540#if EV_FEATURE_API 2616#if EV_FEATURE_API
2541void ecb_cold 2617void ecb_cold
2542ev_verify (EV_P) 2618ev_verify (EV_P) EV_THROW
2543{ 2619{
2544#if EV_VERIFY 2620#if EV_VERIFY
2545 int i; 2621 int i;
2546 WL w; 2622 WL w, w2;
2547 2623
2548 assert (activecnt >= -1); 2624 assert (activecnt >= -1);
2549 2625
2550 assert (fdchangemax >= fdchangecnt); 2626 assert (fdchangemax >= fdchangecnt);
2551 for (i = 0; i < fdchangecnt; ++i) 2627 for (i = 0; i < fdchangecnt; ++i)
2552 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2628 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2553 2629
2554 assert (anfdmax >= 0); 2630 assert (anfdmax >= 0);
2555 for (i = 0; i < anfdmax; ++i) 2631 for (i = 0; i < anfdmax; ++i)
2632 {
2633 int j = 0;
2634
2556 for (w = anfds [i].head; w; w = w->next) 2635 for (w = w2 = anfds [i].head; w; w = w->next)
2557 { 2636 {
2558 verify_watcher (EV_A_ (W)w); 2637 verify_watcher (EV_A_ (W)w);
2638
2639 if (j++ & 1)
2640 {
2641 assert (("libev: io watcher list contains a loop", w != w2));
2642 w2 = w2->next;
2643 }
2644
2559 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2645 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2560 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2646 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2561 } 2647 }
2648 }
2562 2649
2563 assert (timermax >= timercnt); 2650 assert (timermax >= timercnt);
2564 verify_heap (EV_A_ timers, timercnt); 2651 verify_heap (EV_A_ timers, timercnt);
2565 2652
2566#if EV_PERIODIC_ENABLE 2653#if EV_PERIODIC_ENABLE
2616#if EV_MULTIPLICITY 2703#if EV_MULTIPLICITY
2617struct ev_loop * ecb_cold 2704struct ev_loop * ecb_cold
2618#else 2705#else
2619int 2706int
2620#endif 2707#endif
2621ev_default_loop (unsigned int flags) 2708ev_default_loop (unsigned int flags) EV_THROW
2622{ 2709{
2623 if (!ev_default_loop_ptr) 2710 if (!ev_default_loop_ptr)
2624 { 2711 {
2625#if EV_MULTIPLICITY 2712#if EV_MULTIPLICITY
2626 EV_P = ev_default_loop_ptr = &default_loop_struct; 2713 EV_P = ev_default_loop_ptr = &default_loop_struct;
2645 2732
2646 return ev_default_loop_ptr; 2733 return ev_default_loop_ptr;
2647} 2734}
2648 2735
2649void 2736void
2650ev_loop_fork (EV_P) 2737ev_loop_fork (EV_P) EV_THROW
2651{ 2738{
2652 postfork = 1; /* must be in line with ev_default_fork */ 2739 postfork = 1;
2653} 2740}
2654 2741
2655/*****************************************************************************/ 2742/*****************************************************************************/
2656 2743
2657void 2744void
2659{ 2746{
2660 EV_CB_INVOKE ((W)w, revents); 2747 EV_CB_INVOKE ((W)w, revents);
2661} 2748}
2662 2749
2663unsigned int 2750unsigned int
2664ev_pending_count (EV_P) 2751ev_pending_count (EV_P) EV_THROW
2665{ 2752{
2666 int pri; 2753 int pri;
2667 unsigned int count = 0; 2754 unsigned int count = 0;
2668 2755
2669 for (pri = NUMPRI; pri--; ) 2756 for (pri = NUMPRI; pri--; )
2673} 2760}
2674 2761
2675void noinline 2762void noinline
2676ev_invoke_pending (EV_P) 2763ev_invoke_pending (EV_P)
2677{ 2764{
2678 int pri; 2765 pendingpri = NUMPRI;
2679 2766
2680 for (pri = NUMPRI; pri--; ) 2767 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2768 {
2769 --pendingpri;
2770
2681 while (pendingcnt [pri]) 2771 while (pendingcnt [pendingpri])
2682 { 2772 {
2683 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2773 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2684 2774
2685 p->w->pending = 0; 2775 p->w->pending = 0;
2686 EV_CB_INVOKE (p->w, p->events); 2776 EV_CB_INVOKE (p->w, p->events);
2687 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2688 } 2778 }
2779 }
2689} 2780}
2690 2781
2691#if EV_IDLE_ENABLE 2782#if EV_IDLE_ENABLE
2692/* make idle watchers pending. this handles the "call-idle */ 2783/* make idle watchers pending. this handles the "call-idle */
2693/* only when higher priorities are idle" logic */ 2784/* only when higher priorities are idle" logic */
2783{ 2874{
2784 EV_FREQUENT_CHECK; 2875 EV_FREQUENT_CHECK;
2785 2876
2786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2877 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2787 { 2878 {
2788 int feed_count = 0;
2789
2790 do 2879 do
2791 { 2880 {
2792 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2881 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2793 2882
2794 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2883 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2928 3017
2929 mn_now = ev_rt_now; 3018 mn_now = ev_rt_now;
2930 } 3019 }
2931} 3020}
2932 3021
2933void 3022int
2934ev_run (EV_P_ int flags) 3023ev_run (EV_P_ int flags)
2935{ 3024{
2936#if EV_FEATURE_API 3025#if EV_FEATURE_API
2937 ++loop_depth; 3026 ++loop_depth;
2938#endif 3027#endif
3053 backend_poll (EV_A_ waittime); 3142 backend_poll (EV_A_ waittime);
3054 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3143 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3055 3144
3056 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3145 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3057 3146
3147 ECB_MEMORY_FENCE_ACQUIRE;
3058 if (pipe_write_skipped) 3148 if (pipe_write_skipped)
3059 { 3149 {
3060 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3150 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3061 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3151 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3062 } 3152 }
3095 loop_done = EVBREAK_CANCEL; 3185 loop_done = EVBREAK_CANCEL;
3096 3186
3097#if EV_FEATURE_API 3187#if EV_FEATURE_API
3098 --loop_depth; 3188 --loop_depth;
3099#endif 3189#endif
3190
3191 return activecnt;
3100} 3192}
3101 3193
3102void 3194void
3103ev_break (EV_P_ int how) 3195ev_break (EV_P_ int how) EV_THROW
3104{ 3196{
3105 loop_done = how; 3197 loop_done = how;
3106} 3198}
3107 3199
3108void 3200void
3109ev_ref (EV_P) 3201ev_ref (EV_P) EV_THROW
3110{ 3202{
3111 ++activecnt; 3203 ++activecnt;
3112} 3204}
3113 3205
3114void 3206void
3115ev_unref (EV_P) 3207ev_unref (EV_P) EV_THROW
3116{ 3208{
3117 --activecnt; 3209 --activecnt;
3118} 3210}
3119 3211
3120void 3212void
3121ev_now_update (EV_P) 3213ev_now_update (EV_P) EV_THROW
3122{ 3214{
3123 time_update (EV_A_ 1e100); 3215 time_update (EV_A_ 1e100);
3124} 3216}
3125 3217
3126void 3218void
3127ev_suspend (EV_P) 3219ev_suspend (EV_P) EV_THROW
3128{ 3220{
3129 ev_now_update (EV_A); 3221 ev_now_update (EV_A);
3130} 3222}
3131 3223
3132void 3224void
3133ev_resume (EV_P) 3225ev_resume (EV_P) EV_THROW
3134{ 3226{
3135 ev_tstamp mn_prev = mn_now; 3227 ev_tstamp mn_prev = mn_now;
3136 3228
3137 ev_now_update (EV_A); 3229 ev_now_update (EV_A);
3138 timers_reschedule (EV_A_ mn_now - mn_prev); 3230 timers_reschedule (EV_A_ mn_now - mn_prev);
3177 w->pending = 0; 3269 w->pending = 0;
3178 } 3270 }
3179} 3271}
3180 3272
3181int 3273int
3182ev_clear_pending (EV_P_ void *w) 3274ev_clear_pending (EV_P_ void *w) EV_THROW
3183{ 3275{
3184 W w_ = (W)w; 3276 W w_ = (W)w;
3185 int pending = w_->pending; 3277 int pending = w_->pending;
3186 3278
3187 if (expect_true (pending)) 3279 if (expect_true (pending))
3220} 3312}
3221 3313
3222/*****************************************************************************/ 3314/*****************************************************************************/
3223 3315
3224void noinline 3316void noinline
3225ev_io_start (EV_P_ ev_io *w) 3317ev_io_start (EV_P_ ev_io *w) EV_THROW
3226{ 3318{
3227 int fd = w->fd; 3319 int fd = w->fd;
3228 3320
3229 if (expect_false (ev_is_active (w))) 3321 if (expect_false (ev_is_active (w)))
3230 return; 3322 return;
3236 3328
3237 ev_start (EV_A_ (W)w, 1); 3329 ev_start (EV_A_ (W)w, 1);
3238 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3330 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3239 wlist_add (&anfds[fd].head, (WL)w); 3331 wlist_add (&anfds[fd].head, (WL)w);
3240 3332
3333 /* common bug, apparently */
3334 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3335
3241 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3336 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3242 w->events &= ~EV__IOFDSET; 3337 w->events &= ~EV__IOFDSET;
3243 3338
3244 EV_FREQUENT_CHECK; 3339 EV_FREQUENT_CHECK;
3245} 3340}
3246 3341
3247void noinline 3342void noinline
3248ev_io_stop (EV_P_ ev_io *w) 3343ev_io_stop (EV_P_ ev_io *w) EV_THROW
3249{ 3344{
3250 clear_pending (EV_A_ (W)w); 3345 clear_pending (EV_A_ (W)w);
3251 if (expect_false (!ev_is_active (w))) 3346 if (expect_false (!ev_is_active (w)))
3252 return; 3347 return;
3253 3348
3262 3357
3263 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
3264} 3359}
3265 3360
3266void noinline 3361void noinline
3267ev_timer_start (EV_P_ ev_timer *w) 3362ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3268{ 3363{
3269 if (expect_false (ev_is_active (w))) 3364 if (expect_false (ev_is_active (w)))
3270 return; 3365 return;
3271 3366
3272 ev_at (w) += mn_now; 3367 ev_at (w) += mn_now;
3286 3381
3287 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3382 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3288} 3383}
3289 3384
3290void noinline 3385void noinline
3291ev_timer_stop (EV_P_ ev_timer *w) 3386ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3292{ 3387{
3293 clear_pending (EV_A_ (W)w); 3388 clear_pending (EV_A_ (W)w);
3294 if (expect_false (!ev_is_active (w))) 3389 if (expect_false (!ev_is_active (w)))
3295 return; 3390 return;
3296 3391
3316 3411
3317 EV_FREQUENT_CHECK; 3412 EV_FREQUENT_CHECK;
3318} 3413}
3319 3414
3320void noinline 3415void noinline
3321ev_timer_again (EV_P_ ev_timer *w) 3416ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3322{ 3417{
3323 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
3324 3419
3325 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
3326 3421
3343 3438
3344 EV_FREQUENT_CHECK; 3439 EV_FREQUENT_CHECK;
3345} 3440}
3346 3441
3347ev_tstamp 3442ev_tstamp
3348ev_timer_remaining (EV_P_ ev_timer *w) 3443ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3349{ 3444{
3350 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3445 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3351} 3446}
3352 3447
3353#if EV_PERIODIC_ENABLE 3448#if EV_PERIODIC_ENABLE
3354void noinline 3449void noinline
3355ev_periodic_start (EV_P_ ev_periodic *w) 3450ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3356{ 3451{
3357 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
3358 return; 3453 return;
3359 3454
3360 if (w->reschedule_cb) 3455 if (w->reschedule_cb)
3380 3475
3381 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3476 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3382} 3477}
3383 3478
3384void noinline 3479void noinline
3385ev_periodic_stop (EV_P_ ev_periodic *w) 3480ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3386{ 3481{
3387 clear_pending (EV_A_ (W)w); 3482 clear_pending (EV_A_ (W)w);
3388 if (expect_false (!ev_is_active (w))) 3483 if (expect_false (!ev_is_active (w)))
3389 return; 3484 return;
3390 3485
3408 3503
3409 EV_FREQUENT_CHECK; 3504 EV_FREQUENT_CHECK;
3410} 3505}
3411 3506
3412void noinline 3507void noinline
3413ev_periodic_again (EV_P_ ev_periodic *w) 3508ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3414{ 3509{
3415 /* TODO: use adjustheap and recalculation */ 3510 /* TODO: use adjustheap and recalculation */
3416 ev_periodic_stop (EV_A_ w); 3511 ev_periodic_stop (EV_A_ w);
3417 ev_periodic_start (EV_A_ w); 3512 ev_periodic_start (EV_A_ w);
3418} 3513}
3423#endif 3518#endif
3424 3519
3425#if EV_SIGNAL_ENABLE 3520#if EV_SIGNAL_ENABLE
3426 3521
3427void noinline 3522void noinline
3428ev_signal_start (EV_P_ ev_signal *w) 3523ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3429{ 3524{
3430 if (expect_false (ev_is_active (w))) 3525 if (expect_false (ev_is_active (w)))
3431 return; 3526 return;
3432 3527
3433 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3528 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3504 3599
3505 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
3506} 3601}
3507 3602
3508void noinline 3603void noinline
3509ev_signal_stop (EV_P_ ev_signal *w) 3604ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3510{ 3605{
3511 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
3513 return; 3608 return;
3514 3609
3545#endif 3640#endif
3546 3641
3547#if EV_CHILD_ENABLE 3642#if EV_CHILD_ENABLE
3548 3643
3549void 3644void
3550ev_child_start (EV_P_ ev_child *w) 3645ev_child_start (EV_P_ ev_child *w) EV_THROW
3551{ 3646{
3552#if EV_MULTIPLICITY 3647#if EV_MULTIPLICITY
3553 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3648 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3554#endif 3649#endif
3555 if (expect_false (ev_is_active (w))) 3650 if (expect_false (ev_is_active (w)))
3562 3657
3563 EV_FREQUENT_CHECK; 3658 EV_FREQUENT_CHECK;
3564} 3659}
3565 3660
3566void 3661void
3567ev_child_stop (EV_P_ ev_child *w) 3662ev_child_stop (EV_P_ ev_child *w) EV_THROW
3568{ 3663{
3569 clear_pending (EV_A_ (W)w); 3664 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 3665 if (expect_false (!ev_is_active (w)))
3571 return; 3666 return;
3572 3667
3739} 3834}
3740 3835
3741inline_size int 3836inline_size int
3742infy_newfd (void) 3837infy_newfd (void)
3743{ 3838{
3744#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3839#if defined IN_CLOEXEC && defined IN_NONBLOCK
3745 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3840 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3746 if (fd >= 0) 3841 if (fd >= 0)
3747 return fd; 3842 return fd;
3748#endif 3843#endif
3749 return inotify_init (); 3844 return inotify_init ();
3824#else 3919#else
3825# define EV_LSTAT(p,b) lstat (p, b) 3920# define EV_LSTAT(p,b) lstat (p, b)
3826#endif 3921#endif
3827 3922
3828void 3923void
3829ev_stat_stat (EV_P_ ev_stat *w) 3924ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3830{ 3925{
3831 if (lstat (w->path, &w->attr) < 0) 3926 if (lstat (w->path, &w->attr) < 0)
3832 w->attr.st_nlink = 0; 3927 w->attr.st_nlink = 0;
3833 else if (!w->attr.st_nlink) 3928 else if (!w->attr.st_nlink)
3834 w->attr.st_nlink = 1; 3929 w->attr.st_nlink = 1;
3873 ev_feed_event (EV_A_ w, EV_STAT); 3968 ev_feed_event (EV_A_ w, EV_STAT);
3874 } 3969 }
3875} 3970}
3876 3971
3877void 3972void
3878ev_stat_start (EV_P_ ev_stat *w) 3973ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3879{ 3974{
3880 if (expect_false (ev_is_active (w))) 3975 if (expect_false (ev_is_active (w)))
3881 return; 3976 return;
3882 3977
3883 ev_stat_stat (EV_A_ w); 3978 ev_stat_stat (EV_A_ w);
3904 3999
3905 EV_FREQUENT_CHECK; 4000 EV_FREQUENT_CHECK;
3906} 4001}
3907 4002
3908void 4003void
3909ev_stat_stop (EV_P_ ev_stat *w) 4004ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3910{ 4005{
3911 clear_pending (EV_A_ (W)w); 4006 clear_pending (EV_A_ (W)w);
3912 if (expect_false (!ev_is_active (w))) 4007 if (expect_false (!ev_is_active (w)))
3913 return; 4008 return;
3914 4009
3930} 4025}
3931#endif 4026#endif
3932 4027
3933#if EV_IDLE_ENABLE 4028#if EV_IDLE_ENABLE
3934void 4029void
3935ev_idle_start (EV_P_ ev_idle *w) 4030ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3936{ 4031{
3937 if (expect_false (ev_is_active (w))) 4032 if (expect_false (ev_is_active (w)))
3938 return; 4033 return;
3939 4034
3940 pri_adjust (EV_A_ (W)w); 4035 pri_adjust (EV_A_ (W)w);
3953 4048
3954 EV_FREQUENT_CHECK; 4049 EV_FREQUENT_CHECK;
3955} 4050}
3956 4051
3957void 4052void
3958ev_idle_stop (EV_P_ ev_idle *w) 4053ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3959{ 4054{
3960 clear_pending (EV_A_ (W)w); 4055 clear_pending (EV_A_ (W)w);
3961 if (expect_false (!ev_is_active (w))) 4056 if (expect_false (!ev_is_active (w)))
3962 return; 4057 return;
3963 4058
3977} 4072}
3978#endif 4073#endif
3979 4074
3980#if EV_PREPARE_ENABLE 4075#if EV_PREPARE_ENABLE
3981void 4076void
3982ev_prepare_start (EV_P_ ev_prepare *w) 4077ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3983{ 4078{
3984 if (expect_false (ev_is_active (w))) 4079 if (expect_false (ev_is_active (w)))
3985 return; 4080 return;
3986 4081
3987 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3992 4087
3993 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3994} 4089}
3995 4090
3996void 4091void
3997ev_prepare_stop (EV_P_ ev_prepare *w) 4092ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3998{ 4093{
3999 clear_pending (EV_A_ (W)w); 4094 clear_pending (EV_A_ (W)w);
4000 if (expect_false (!ev_is_active (w))) 4095 if (expect_false (!ev_is_active (w)))
4001 return; 4096 return;
4002 4097
4015} 4110}
4016#endif 4111#endif
4017 4112
4018#if EV_CHECK_ENABLE 4113#if EV_CHECK_ENABLE
4019void 4114void
4020ev_check_start (EV_P_ ev_check *w) 4115ev_check_start (EV_P_ ev_check *w) EV_THROW
4021{ 4116{
4022 if (expect_false (ev_is_active (w))) 4117 if (expect_false (ev_is_active (w)))
4023 return; 4118 return;
4024 4119
4025 EV_FREQUENT_CHECK; 4120 EV_FREQUENT_CHECK;
4030 4125
4031 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
4032} 4127}
4033 4128
4034void 4129void
4035ev_check_stop (EV_P_ ev_check *w) 4130ev_check_stop (EV_P_ ev_check *w) EV_THROW
4036{ 4131{
4037 clear_pending (EV_A_ (W)w); 4132 clear_pending (EV_A_ (W)w);
4038 if (expect_false (!ev_is_active (w))) 4133 if (expect_false (!ev_is_active (w)))
4039 return; 4134 return;
4040 4135
4053} 4148}
4054#endif 4149#endif
4055 4150
4056#if EV_EMBED_ENABLE 4151#if EV_EMBED_ENABLE
4057void noinline 4152void noinline
4058ev_embed_sweep (EV_P_ ev_embed *w) 4153ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4059{ 4154{
4060 ev_run (w->other, EVRUN_NOWAIT); 4155 ev_run (w->other, EVRUN_NOWAIT);
4061} 4156}
4062 4157
4063static void 4158static void
4111 ev_idle_stop (EV_A_ idle); 4206 ev_idle_stop (EV_A_ idle);
4112} 4207}
4113#endif 4208#endif
4114 4209
4115void 4210void
4116ev_embed_start (EV_P_ ev_embed *w) 4211ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4117{ 4212{
4118 if (expect_false (ev_is_active (w))) 4213 if (expect_false (ev_is_active (w)))
4119 return; 4214 return;
4120 4215
4121 { 4216 {
4142 4237
4143 EV_FREQUENT_CHECK; 4238 EV_FREQUENT_CHECK;
4144} 4239}
4145 4240
4146void 4241void
4147ev_embed_stop (EV_P_ ev_embed *w) 4242ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4148{ 4243{
4149 clear_pending (EV_A_ (W)w); 4244 clear_pending (EV_A_ (W)w);
4150 if (expect_false (!ev_is_active (w))) 4245 if (expect_false (!ev_is_active (w)))
4151 return; 4246 return;
4152 4247
4162} 4257}
4163#endif 4258#endif
4164 4259
4165#if EV_FORK_ENABLE 4260#if EV_FORK_ENABLE
4166void 4261void
4167ev_fork_start (EV_P_ ev_fork *w) 4262ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4168{ 4263{
4169 if (expect_false (ev_is_active (w))) 4264 if (expect_false (ev_is_active (w)))
4170 return; 4265 return;
4171 4266
4172 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
4177 4272
4178 EV_FREQUENT_CHECK; 4273 EV_FREQUENT_CHECK;
4179} 4274}
4180 4275
4181void 4276void
4182ev_fork_stop (EV_P_ ev_fork *w) 4277ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4183{ 4278{
4184 clear_pending (EV_A_ (W)w); 4279 clear_pending (EV_A_ (W)w);
4185 if (expect_false (!ev_is_active (w))) 4280 if (expect_false (!ev_is_active (w)))
4186 return; 4281 return;
4187 4282
4200} 4295}
4201#endif 4296#endif
4202 4297
4203#if EV_CLEANUP_ENABLE 4298#if EV_CLEANUP_ENABLE
4204void 4299void
4205ev_cleanup_start (EV_P_ ev_cleanup *w) 4300ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4206{ 4301{
4207 if (expect_false (ev_is_active (w))) 4302 if (expect_false (ev_is_active (w)))
4208 return; 4303 return;
4209 4304
4210 EV_FREQUENT_CHECK; 4305 EV_FREQUENT_CHECK;
4217 ev_unref (EV_A); 4312 ev_unref (EV_A);
4218 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
4219} 4314}
4220 4315
4221void 4316void
4222ev_cleanup_stop (EV_P_ ev_cleanup *w) 4317ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4223{ 4318{
4224 clear_pending (EV_A_ (W)w); 4319 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4320 if (expect_false (!ev_is_active (w)))
4226 return; 4321 return;
4227 4322
4241} 4336}
4242#endif 4337#endif
4243 4338
4244#if EV_ASYNC_ENABLE 4339#if EV_ASYNC_ENABLE
4245void 4340void
4246ev_async_start (EV_P_ ev_async *w) 4341ev_async_start (EV_P_ ev_async *w) EV_THROW
4247{ 4342{
4248 if (expect_false (ev_is_active (w))) 4343 if (expect_false (ev_is_active (w)))
4249 return; 4344 return;
4250 4345
4251 w->sent = 0; 4346 w->sent = 0;
4260 4355
4261 EV_FREQUENT_CHECK; 4356 EV_FREQUENT_CHECK;
4262} 4357}
4263 4358
4264void 4359void
4265ev_async_stop (EV_P_ ev_async *w) 4360ev_async_stop (EV_P_ ev_async *w) EV_THROW
4266{ 4361{
4267 clear_pending (EV_A_ (W)w); 4362 clear_pending (EV_A_ (W)w);
4268 if (expect_false (!ev_is_active (w))) 4363 if (expect_false (!ev_is_active (w)))
4269 return; 4364 return;
4270 4365
4281 4376
4282 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
4283} 4378}
4284 4379
4285void 4380void
4286ev_async_send (EV_P_ ev_async *w) 4381ev_async_send (EV_P_ ev_async *w) EV_THROW
4287{ 4382{
4288 w->sent = 1; 4383 w->sent = 1;
4289 evpipe_write (EV_A_ &async_pending); 4384 evpipe_write (EV_A_ &async_pending);
4290} 4385}
4291#endif 4386#endif
4328 4423
4329 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4424 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4330} 4425}
4331 4426
4332void 4427void
4333ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4428ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4334{ 4429{
4335 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4430 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4336 4431
4337 if (expect_false (!once)) 4432 if (expect_false (!once))
4338 { 4433 {
4360 4455
4361/*****************************************************************************/ 4456/*****************************************************************************/
4362 4457
4363#if EV_WALK_ENABLE 4458#if EV_WALK_ENABLE
4364void ecb_cold 4459void ecb_cold
4365ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4460ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4366{ 4461{
4367 int i, j; 4462 int i, j;
4368 ev_watcher_list *wl, *wn; 4463 ev_watcher_list *wl, *wn;
4369 4464
4370 if (types & (EV_IO | EV_EMBED)) 4465 if (types & (EV_IO | EV_EMBED))

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