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Comparing libev/ev.c (file contents):
Revision 1.413 by root, Fri Mar 23 19:06:08 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 ()
606 #elif __xlC__ 638 #elif __xlC__
607 #define ECB_MEMORY_FENCE __lwsync () 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)
608 #endif 655 #endif
609#endif 656#endif
610 657
611#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 659 #if !ECB_AVOID_PTHREADS
624 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 671 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
625 #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)
626 #endif 673 #endif
627#endif 674#endif
628 675
629#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 676#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 677 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
631#endif 678#endif
632 679
633#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 682#endif
636 683
637/*****************************************************************************/ 684/*****************************************************************************/
638
639#define ECB_C99 (__STDC_VERSION__ >= 199901L)
640 685
641#if __cplusplus 686#if __cplusplus
642 #define ecb_inline static inline 687 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 688#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 689 #define ecb_inline static __inline__
683#elif ECB_GCC_VERSION(3,0) 728#elif ECB_GCC_VERSION(3,0)
684 #define ecb_decltype(x) __typeof(x) 729 #define ecb_decltype(x) __typeof(x)
685#endif 730#endif
686 731
687#define ecb_noinline ecb_attribute ((__noinline__)) 732#define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__))
689#define ecb_unused ecb_attribute ((__unused__)) 733#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 734#define ecb_const ecb_attribute ((__const__))
691#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
692 742
693#if ECB_GCC_VERSION(4,3) 743#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 744 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 745 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 746 #define ecb_cold ecb_attribute ((__cold__))
787 837
788 return r + ecb_ld32 (x); 838 return r + ecb_ld32 (x);
789 } 839 }
790#endif 840#endif
791 841
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
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
794{ 849{
795 return ( (x * 0x0802U & 0x22110U) 850 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
1103{ 1158{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
1105} 1160}
1106#endif 1161#endif
1107 1162
1108static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
1109 1164
1110void ecb_cold 1165void ecb_cold
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112{ 1167{
1113 syserr_cb = cb; 1168 syserr_cb = cb;
1114} 1169}
1115 1170
1116static void noinline ecb_cold 1171static void noinline ecb_cold
1134 abort (); 1189 abort ();
1135 } 1190 }
1136} 1191}
1137 1192
1138static void * 1193static void *
1139ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
1140{ 1195{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
1145 * 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
1146 * 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.
1147 */ 1201 */
1148 1202
1149 if (size) 1203 if (size)
1150 return realloc (ptr, size); 1204 return realloc (ptr, size);
1151 1205
1152 free (ptr); 1206 free (ptr);
1153 return 0; 1207 return 0;
1154#endif
1155} 1208}
1156 1209
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158 1211
1159void ecb_cold 1212void ecb_cold
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161{ 1214{
1162 alloc = cb; 1215 alloc = cb;
1163} 1216}
1164 1217
1165inline_speed void * 1218inline_speed void *
1282 1335
1283/*****************************************************************************/ 1336/*****************************************************************************/
1284 1337
1285#ifndef EV_HAVE_EV_TIME 1338#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 1339ev_tstamp
1287ev_time (void) 1340ev_time (void) EV_THROW
1288{ 1341{
1289#if EV_USE_REALTIME 1342#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 1343 if (expect_true (have_realtime))
1291 { 1344 {
1292 struct timespec ts; 1345 struct timespec ts;
1316 return ev_time (); 1369 return ev_time ();
1317} 1370}
1318 1371
1319#if EV_MULTIPLICITY 1372#if EV_MULTIPLICITY
1320ev_tstamp 1373ev_tstamp
1321ev_now (EV_P) 1374ev_now (EV_P) EV_THROW
1322{ 1375{
1323 return ev_rt_now; 1376 return ev_rt_now;
1324} 1377}
1325#endif 1378#endif
1326 1379
1327void 1380void
1328ev_sleep (ev_tstamp delay) 1381ev_sleep (ev_tstamp delay) EV_THROW
1329{ 1382{
1330 if (delay > 0.) 1383 if (delay > 0.)
1331 { 1384 {
1332#if EV_USE_NANOSLEEP 1385#if EV_USE_NANOSLEEP
1333 struct timespec ts; 1386 struct timespec ts;
1334 1387
1335 EV_TS_SET (ts, delay); 1388 EV_TS_SET (ts, delay);
1336 nanosleep (&ts, 0); 1389 nanosleep (&ts, 0);
1337#elif defined(_WIN32) 1390#elif defined _WIN32
1338 Sleep ((unsigned long)(delay * 1e3)); 1391 Sleep ((unsigned long)(delay * 1e3));
1339#else 1392#else
1340 struct timeval tv; 1393 struct timeval tv;
1341 1394
1342 /* 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 */
1414pendingcb (EV_P_ ev_prepare *w, int revents) 1467pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 1468{
1416} 1469}
1417 1470
1418void noinline 1471void noinline
1419ev_feed_event (EV_P_ void *w, int revents) 1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420{ 1473{
1421 W w_ = (W)w; 1474 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 1475 int pri = ABSPRI (w_);
1423 1476
1424 if (expect_false (w_->pending)) 1477 if (expect_false (w_->pending))
1428 w_->pending = ++pendingcnt [pri]; 1481 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430 pendings [pri][w_->pending - 1].w = w_; 1483 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 1484 pendings [pri][w_->pending - 1].events = revents;
1432 } 1485 }
1486
1487 pendingpri = NUMPRI - 1;
1433} 1488}
1434 1489
1435inline_speed void 1490inline_speed void
1436feed_reverse (EV_P_ W w) 1491feed_reverse (EV_P_ W w)
1437{ 1492{
1483 if (expect_true (!anfd->reify)) 1538 if (expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 1539 fd_event_nocheck (EV_A_ fd, revents);
1485} 1540}
1486 1541
1487void 1542void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489{ 1544{
1490 if (fd >= 0 && fd < anfdmax) 1545 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 1546 fd_event_nocheck (EV_A_ fd, revents);
1492} 1547}
1493 1548
1842} 1897}
1843 1898
1844inline_speed void 1899inline_speed void
1845evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1900evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1846{ 1901{
1902 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1903
1847 if (expect_true (*flag)) 1904 if (expect_true (*flag))
1848 return; 1905 return;
1849 1906
1850 *flag = 1; 1907 *flag = 1;
1851
1852 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 */
1853 1909
1854 pipe_write_skipped = 1; 1910 pipe_write_skipped = 1;
1855 1911
1856 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 */
1857 1913
1858 if (pipe_write_wanted) 1914 if (pipe_write_wanted)
1859 { 1915 {
1860 int old_errno; 1916 int old_errno;
1861 1917
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 1918 pipe_write_skipped = 0;
1919 ECB_MEMORY_FENCE_RELEASE;
1863 1920
1864 old_errno = errno; /* save errno because write will clobber it */ 1921 old_errno = errno; /* save errno because write will clobber it */
1865 1922
1866#if EV_USE_EVENTFD 1923#if EV_USE_EVENTFD
1867 if (evfd >= 0) 1924 if (evfd >= 0)
1870 write (evfd, &counter, sizeof (uint64_t)); 1927 write (evfd, &counter, sizeof (uint64_t));
1871 } 1928 }
1872 else 1929 else
1873#endif 1930#endif
1874 { 1931 {
1875 /* win32 people keep sending patches that change this write() to send() */ 1932#ifdef _WIN32
1876 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1933 WSABUF buf;
1877 /* so when you think this write should be a send instead, please find out */ 1934 DWORD sent;
1878 /* where your send() is from - it's definitely not the microsoft send, and */ 1935 buf.buf = &buf;
1879 /* tell me. thank you. */ 1936 buf.len = 1;
1880 /* 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);
1881 /* check the ev documentation on how to use this flag */ 1938#else
1882 write (evpipe [1], &(evpipe [1]), 1); 1939 write (evpipe [1], &(evpipe [1]), 1);
1940#endif
1883 } 1941 }
1884 1942
1885 errno = old_errno; 1943 errno = old_errno;
1886 } 1944 }
1887} 1945}
1902 read (evfd, &counter, sizeof (uint64_t)); 1960 read (evfd, &counter, sizeof (uint64_t));
1903 } 1961 }
1904 else 1962 else
1905#endif 1963#endif
1906 { 1964 {
1907 char dummy; 1965 char dummy[4];
1908 /* 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
1909 read (evpipe [0], &dummy, 1); 1974 read (evpipe [0], &dummy, sizeof (dummy));
1975#endif
1910 } 1976 }
1911 } 1977 }
1912 1978
1913 pipe_write_skipped = 0; 1979 pipe_write_skipped = 0;
1980
1981 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 1982
1915#if EV_SIGNAL_ENABLE 1983#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 1984 if (sig_pending)
1917 { 1985 {
1918 sig_pending = 0; 1986 sig_pending = 0;
1987
1988 ECB_MEMORY_FENCE;
1919 1989
1920 for (i = EV_NSIG - 1; i--; ) 1990 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 1991 if (expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 1992 ev_feed_signal_event (EV_A_ i + 1);
1923 } 1993 }
1925 1995
1926#if EV_ASYNC_ENABLE 1996#if EV_ASYNC_ENABLE
1927 if (async_pending) 1997 if (async_pending)
1928 { 1998 {
1929 async_pending = 0; 1999 async_pending = 0;
2000
2001 ECB_MEMORY_FENCE;
1930 2002
1931 for (i = asynccnt; i--; ) 2003 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2004 if (asyncs [i]->sent)
1933 { 2005 {
1934 asyncs [i]->sent = 0; 2006 asyncs [i]->sent = 0;
2007 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2008 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2009 }
1937 } 2010 }
1938#endif 2011#endif
1939} 2012}
1940 2013
1941/*****************************************************************************/ 2014/*****************************************************************************/
1942 2015
1943void 2016void
1944ev_feed_signal (int signum) 2017ev_feed_signal (int signum) EV_THROW
1945{ 2018{
1946#if EV_MULTIPLICITY 2019#if EV_MULTIPLICITY
1947 EV_P = signals [signum - 1].loop; 2020 EV_P = signals [signum - 1].loop;
1948 2021
1949 if (!EV_A) 2022 if (!EV_A)
1966 2039
1967 ev_feed_signal (signum); 2040 ev_feed_signal (signum);
1968} 2041}
1969 2042
1970void noinline 2043void noinline
1971ev_feed_signal_event (EV_P_ int signum) 2044ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972{ 2045{
1973 WL w; 2046 WL w;
1974 2047
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2048 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2049 return;
1977 2050
1978 --signum; 2051 --signum;
1979 2052
1980#if EV_MULTIPLICITY 2053#if EV_MULTIPLICITY
1984 if (expect_false (signals [signum].loop != EV_A)) 2057 if (expect_false (signals [signum].loop != EV_A))
1985 return; 2058 return;
1986#endif 2059#endif
1987 2060
1988 signals [signum].pending = 0; 2061 signals [signum].pending = 0;
2062 ECB_MEMORY_FENCE_RELEASE;
1989 2063
1990 for (w = signals [signum].head; w; w = w->next) 2064 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2065 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2066}
1993 2067
2092#if EV_USE_SELECT 2166#if EV_USE_SELECT
2093# include "ev_select.c" 2167# include "ev_select.c"
2094#endif 2168#endif
2095 2169
2096int ecb_cold 2170int ecb_cold
2097ev_version_major (void) 2171ev_version_major (void) EV_THROW
2098{ 2172{
2099 return EV_VERSION_MAJOR; 2173 return EV_VERSION_MAJOR;
2100} 2174}
2101 2175
2102int ecb_cold 2176int ecb_cold
2103ev_version_minor (void) 2177ev_version_minor (void) EV_THROW
2104{ 2178{
2105 return EV_VERSION_MINOR; 2179 return EV_VERSION_MINOR;
2106} 2180}
2107 2181
2108/* 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 */
2116 || getgid () != getegid (); 2190 || getgid () != getegid ();
2117#endif 2191#endif
2118} 2192}
2119 2193
2120unsigned int ecb_cold 2194unsigned int ecb_cold
2121ev_supported_backends (void) 2195ev_supported_backends (void) EV_THROW
2122{ 2196{
2123 unsigned int flags = 0; 2197 unsigned int flags = 0;
2124 2198
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2199 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2200 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2130 2204
2131 return flags; 2205 return flags;
2132} 2206}
2133 2207
2134unsigned int ecb_cold 2208unsigned int ecb_cold
2135ev_recommended_backends (void) 2209ev_recommended_backends (void) EV_THROW
2136{ 2210{
2137 unsigned int flags = ev_supported_backends (); 2211 unsigned int flags = ev_supported_backends ();
2138 2212
2139#ifndef __NetBSD__ 2213#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 2214 /* kqueue is borked on everything but netbsd apparently */
2152 2226
2153 return flags; 2227 return flags;
2154} 2228}
2155 2229
2156unsigned int ecb_cold 2230unsigned int ecb_cold
2157ev_embeddable_backends (void) 2231ev_embeddable_backends (void) EV_THROW
2158{ 2232{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2233 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 2234
2161 /* 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 */
2162 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 */
2164 2238
2165 return flags; 2239 return flags;
2166} 2240}
2167 2241
2168unsigned int 2242unsigned int
2169ev_backend (EV_P) 2243ev_backend (EV_P) EV_THROW
2170{ 2244{
2171 return backend; 2245 return backend;
2172} 2246}
2173 2247
2174#if EV_FEATURE_API 2248#if EV_FEATURE_API
2175unsigned int 2249unsigned int
2176ev_iteration (EV_P) 2250ev_iteration (EV_P) EV_THROW
2177{ 2251{
2178 return loop_count; 2252 return loop_count;
2179} 2253}
2180 2254
2181unsigned int 2255unsigned int
2182ev_depth (EV_P) 2256ev_depth (EV_P) EV_THROW
2183{ 2257{
2184 return loop_depth; 2258 return loop_depth;
2185} 2259}
2186 2260
2187void 2261void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2262ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2263{
2190 io_blocktime = interval; 2264 io_blocktime = interval;
2191} 2265}
2192 2266
2193void 2267void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2268ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195{ 2269{
2196 timeout_blocktime = interval; 2270 timeout_blocktime = interval;
2197} 2271}
2198 2272
2199void 2273void
2200ev_set_userdata (EV_P_ void *data) 2274ev_set_userdata (EV_P_ void *data) EV_THROW
2201{ 2275{
2202 userdata = data; 2276 userdata = data;
2203} 2277}
2204 2278
2205void * 2279void *
2206ev_userdata (EV_P) 2280ev_userdata (EV_P) EV_THROW
2207{ 2281{
2208 return userdata; 2282 return userdata;
2209} 2283}
2210 2284
2211void 2285void
2212ev_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
2213{ 2287{
2214 invoke_cb = invoke_pending_cb; 2288 invoke_cb = invoke_pending_cb;
2215} 2289}
2216 2290
2217void 2291void
2218ev_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
2219{ 2293{
2220 release_cb = release; 2294 release_cb = release;
2221 acquire_cb = acquire; 2295 acquire_cb = acquire;
2222} 2296}
2223#endif 2297#endif
2224 2298
2225/* initialise a loop structure, must be zero-initialised */ 2299/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 2300static void noinline ecb_cold
2227loop_init (EV_P_ unsigned int flags) 2301loop_init (EV_P_ unsigned int flags) EV_THROW
2228{ 2302{
2229 if (!backend) 2303 if (!backend)
2230 { 2304 {
2231 origflags = flags; 2305 origflags = flags;
2232 2306
2337 EV_INVOKE_PENDING; 2411 EV_INVOKE_PENDING;
2338 } 2412 }
2339#endif 2413#endif
2340 2414
2341#if EV_CHILD_ENABLE 2415#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 2416 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 2417 {
2344 ev_ref (EV_A); /* child watcher */ 2418 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 2419 ev_signal_stop (EV_A_ &childev);
2346 } 2420 }
2347#endif 2421#endif
2474 EV_WIN32_CLOSE_FD (evpipe [1]); 2548 EV_WIN32_CLOSE_FD (evpipe [1]);
2475 } 2549 }
2476 2550
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2551#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A); 2552 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */ 2553 /* iterate over everything, in case we missed something before */
2480 pipecb (EV_A_ &pipe_w, EV_READ); 2554 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481#endif 2555#endif
2482 } 2556 }
2483 2557
2484 postfork = 0; 2558 postfork = 0;
2485} 2559}
2486 2560
2487#if EV_MULTIPLICITY 2561#if EV_MULTIPLICITY
2488 2562
2489struct ev_loop * ecb_cold 2563struct ev_loop * ecb_cold
2490ev_loop_new (unsigned int flags) 2564ev_loop_new (unsigned int flags) EV_THROW
2491{ 2565{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2566 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 2567
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 2568 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 2569 loop_init (EV_A_ flags);
2539} 2613}
2540#endif 2614#endif
2541 2615
2542#if EV_FEATURE_API 2616#if EV_FEATURE_API
2543void ecb_cold 2617void ecb_cold
2544ev_verify (EV_P) 2618ev_verify (EV_P) EV_THROW
2545{ 2619{
2546#if EV_VERIFY 2620#if EV_VERIFY
2547 int i; 2621 int i;
2548 WL w; 2622 WL w, w2;
2549 2623
2550 assert (activecnt >= -1); 2624 assert (activecnt >= -1);
2551 2625
2552 assert (fdchangemax >= fdchangecnt); 2626 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 2627 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2628 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 2629
2556 assert (anfdmax >= 0); 2630 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 2631 for (i = 0; i < anfdmax; ++i)
2632 {
2633 int j = 0;
2634
2558 for (w = anfds [i].head; w; w = w->next) 2635 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 2636 {
2560 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
2561 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));
2562 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));
2563 } 2647 }
2648 }
2564 2649
2565 assert (timermax >= timercnt); 2650 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 2651 verify_heap (EV_A_ timers, timercnt);
2567 2652
2568#if EV_PERIODIC_ENABLE 2653#if EV_PERIODIC_ENABLE
2618#if EV_MULTIPLICITY 2703#if EV_MULTIPLICITY
2619struct ev_loop * ecb_cold 2704struct ev_loop * ecb_cold
2620#else 2705#else
2621int 2706int
2622#endif 2707#endif
2623ev_default_loop (unsigned int flags) 2708ev_default_loop (unsigned int flags) EV_THROW
2624{ 2709{
2625 if (!ev_default_loop_ptr) 2710 if (!ev_default_loop_ptr)
2626 { 2711 {
2627#if EV_MULTIPLICITY 2712#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 2713 EV_P = ev_default_loop_ptr = &default_loop_struct;
2647 2732
2648 return ev_default_loop_ptr; 2733 return ev_default_loop_ptr;
2649} 2734}
2650 2735
2651void 2736void
2652ev_loop_fork (EV_P) 2737ev_loop_fork (EV_P) EV_THROW
2653{ 2738{
2654 postfork = 1; /* must be in line with ev_default_fork */ 2739 postfork = 1;
2655} 2740}
2656 2741
2657/*****************************************************************************/ 2742/*****************************************************************************/
2658 2743
2659void 2744void
2661{ 2746{
2662 EV_CB_INVOKE ((W)w, revents); 2747 EV_CB_INVOKE ((W)w, revents);
2663} 2748}
2664 2749
2665unsigned int 2750unsigned int
2666ev_pending_count (EV_P) 2751ev_pending_count (EV_P) EV_THROW
2667{ 2752{
2668 int pri; 2753 int pri;
2669 unsigned int count = 0; 2754 unsigned int count = 0;
2670 2755
2671 for (pri = NUMPRI; pri--; ) 2756 for (pri = NUMPRI; pri--; )
2675} 2760}
2676 2761
2677void noinline 2762void noinline
2678ev_invoke_pending (EV_P) 2763ev_invoke_pending (EV_P)
2679{ 2764{
2680 int pri; 2765 pendingpri = NUMPRI;
2681 2766
2682 for (pri = NUMPRI; pri--; ) 2767 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2768 {
2769 --pendingpri;
2770
2683 while (pendingcnt [pri]) 2771 while (pendingcnt [pendingpri])
2684 { 2772 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2773 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 2774
2687 p->w->pending = 0; 2775 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 2776 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2690 } 2778 }
2779 }
2691} 2780}
2692 2781
2693#if EV_IDLE_ENABLE 2782#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 2783/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 2784/* only when higher priorities are idle" logic */
2785{ 2874{
2786 EV_FREQUENT_CHECK; 2875 EV_FREQUENT_CHECK;
2787 2876
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2877 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 2878 {
2790 int feed_count = 0;
2791
2792 do 2879 do
2793 { 2880 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2881 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 2882
2796 /*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)));*/
2930 3017
2931 mn_now = ev_rt_now; 3018 mn_now = ev_rt_now;
2932 } 3019 }
2933} 3020}
2934 3021
2935void 3022int
2936ev_run (EV_P_ int flags) 3023ev_run (EV_P_ int flags)
2937{ 3024{
2938#if EV_FEATURE_API 3025#if EV_FEATURE_API
2939 ++loop_depth; 3026 ++loop_depth;
2940#endif 3027#endif
3055 backend_poll (EV_A_ waittime); 3142 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3143 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 3144
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3145 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 3146
3147 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 3148 if (pipe_write_skipped)
3061 { 3149 {
3062 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)));
3063 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3151 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 3152 }
3097 loop_done = EVBREAK_CANCEL; 3185 loop_done = EVBREAK_CANCEL;
3098 3186
3099#if EV_FEATURE_API 3187#if EV_FEATURE_API
3100 --loop_depth; 3188 --loop_depth;
3101#endif 3189#endif
3190
3191 return activecnt;
3102} 3192}
3103 3193
3104void 3194void
3105ev_break (EV_P_ int how) 3195ev_break (EV_P_ int how) EV_THROW
3106{ 3196{
3107 loop_done = how; 3197 loop_done = how;
3108} 3198}
3109 3199
3110void 3200void
3111ev_ref (EV_P) 3201ev_ref (EV_P) EV_THROW
3112{ 3202{
3113 ++activecnt; 3203 ++activecnt;
3114} 3204}
3115 3205
3116void 3206void
3117ev_unref (EV_P) 3207ev_unref (EV_P) EV_THROW
3118{ 3208{
3119 --activecnt; 3209 --activecnt;
3120} 3210}
3121 3211
3122void 3212void
3123ev_now_update (EV_P) 3213ev_now_update (EV_P) EV_THROW
3124{ 3214{
3125 time_update (EV_A_ 1e100); 3215 time_update (EV_A_ 1e100);
3126} 3216}
3127 3217
3128void 3218void
3129ev_suspend (EV_P) 3219ev_suspend (EV_P) EV_THROW
3130{ 3220{
3131 ev_now_update (EV_A); 3221 ev_now_update (EV_A);
3132} 3222}
3133 3223
3134void 3224void
3135ev_resume (EV_P) 3225ev_resume (EV_P) EV_THROW
3136{ 3226{
3137 ev_tstamp mn_prev = mn_now; 3227 ev_tstamp mn_prev = mn_now;
3138 3228
3139 ev_now_update (EV_A); 3229 ev_now_update (EV_A);
3140 timers_reschedule (EV_A_ mn_now - mn_prev); 3230 timers_reschedule (EV_A_ mn_now - mn_prev);
3179 w->pending = 0; 3269 w->pending = 0;
3180 } 3270 }
3181} 3271}
3182 3272
3183int 3273int
3184ev_clear_pending (EV_P_ void *w) 3274ev_clear_pending (EV_P_ void *w) EV_THROW
3185{ 3275{
3186 W w_ = (W)w; 3276 W w_ = (W)w;
3187 int pending = w_->pending; 3277 int pending = w_->pending;
3188 3278
3189 if (expect_true (pending)) 3279 if (expect_true (pending))
3222} 3312}
3223 3313
3224/*****************************************************************************/ 3314/*****************************************************************************/
3225 3315
3226void noinline 3316void noinline
3227ev_io_start (EV_P_ ev_io *w) 3317ev_io_start (EV_P_ ev_io *w) EV_THROW
3228{ 3318{
3229 int fd = w->fd; 3319 int fd = w->fd;
3230 3320
3231 if (expect_false (ev_is_active (w))) 3321 if (expect_false (ev_is_active (w)))
3232 return; 3322 return;
3238 3328
3239 ev_start (EV_A_ (W)w, 1); 3329 ev_start (EV_A_ (W)w, 1);
3240 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3330 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3241 wlist_add (&anfds[fd].head, (WL)w); 3331 wlist_add (&anfds[fd].head, (WL)w);
3242 3332
3333 /* common bug, apparently */
3334 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3335
3243 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);
3244 w->events &= ~EV__IOFDSET; 3337 w->events &= ~EV__IOFDSET;
3245 3338
3246 EV_FREQUENT_CHECK; 3339 EV_FREQUENT_CHECK;
3247} 3340}
3248 3341
3249void noinline 3342void noinline
3250ev_io_stop (EV_P_ ev_io *w) 3343ev_io_stop (EV_P_ ev_io *w) EV_THROW
3251{ 3344{
3252 clear_pending (EV_A_ (W)w); 3345 clear_pending (EV_A_ (W)w);
3253 if (expect_false (!ev_is_active (w))) 3346 if (expect_false (!ev_is_active (w)))
3254 return; 3347 return;
3255 3348
3264 3357
3265 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
3266} 3359}
3267 3360
3268void noinline 3361void noinline
3269ev_timer_start (EV_P_ ev_timer *w) 3362ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3270{ 3363{
3271 if (expect_false (ev_is_active (w))) 3364 if (expect_false (ev_is_active (w)))
3272 return; 3365 return;
3273 3366
3274 ev_at (w) += mn_now; 3367 ev_at (w) += mn_now;
3288 3381
3289 /*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));*/
3290} 3383}
3291 3384
3292void noinline 3385void noinline
3293ev_timer_stop (EV_P_ ev_timer *w) 3386ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3294{ 3387{
3295 clear_pending (EV_A_ (W)w); 3388 clear_pending (EV_A_ (W)w);
3296 if (expect_false (!ev_is_active (w))) 3389 if (expect_false (!ev_is_active (w)))
3297 return; 3390 return;
3298 3391
3318 3411
3319 EV_FREQUENT_CHECK; 3412 EV_FREQUENT_CHECK;
3320} 3413}
3321 3414
3322void noinline 3415void noinline
3323ev_timer_again (EV_P_ ev_timer *w) 3416ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3324{ 3417{
3325 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
3326 3419
3327 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
3328 3421
3345 3438
3346 EV_FREQUENT_CHECK; 3439 EV_FREQUENT_CHECK;
3347} 3440}
3348 3441
3349ev_tstamp 3442ev_tstamp
3350ev_timer_remaining (EV_P_ ev_timer *w) 3443ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3351{ 3444{
3352 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3445 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3353} 3446}
3354 3447
3355#if EV_PERIODIC_ENABLE 3448#if EV_PERIODIC_ENABLE
3356void noinline 3449void noinline
3357ev_periodic_start (EV_P_ ev_periodic *w) 3450ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3358{ 3451{
3359 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
3360 return; 3453 return;
3361 3454
3362 if (w->reschedule_cb) 3455 if (w->reschedule_cb)
3382 3475
3383 /*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));*/
3384} 3477}
3385 3478
3386void noinline 3479void noinline
3387ev_periodic_stop (EV_P_ ev_periodic *w) 3480ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3388{ 3481{
3389 clear_pending (EV_A_ (W)w); 3482 clear_pending (EV_A_ (W)w);
3390 if (expect_false (!ev_is_active (w))) 3483 if (expect_false (!ev_is_active (w)))
3391 return; 3484 return;
3392 3485
3410 3503
3411 EV_FREQUENT_CHECK; 3504 EV_FREQUENT_CHECK;
3412} 3505}
3413 3506
3414void noinline 3507void noinline
3415ev_periodic_again (EV_P_ ev_periodic *w) 3508ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3416{ 3509{
3417 /* TODO: use adjustheap and recalculation */ 3510 /* TODO: use adjustheap and recalculation */
3418 ev_periodic_stop (EV_A_ w); 3511 ev_periodic_stop (EV_A_ w);
3419 ev_periodic_start (EV_A_ w); 3512 ev_periodic_start (EV_A_ w);
3420} 3513}
3425#endif 3518#endif
3426 3519
3427#if EV_SIGNAL_ENABLE 3520#if EV_SIGNAL_ENABLE
3428 3521
3429void noinline 3522void noinline
3430ev_signal_start (EV_P_ ev_signal *w) 3523ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3431{ 3524{
3432 if (expect_false (ev_is_active (w))) 3525 if (expect_false (ev_is_active (w)))
3433 return; 3526 return;
3434 3527
3435 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));
3506 3599
3507 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
3508} 3601}
3509 3602
3510void noinline 3603void noinline
3511ev_signal_stop (EV_P_ ev_signal *w) 3604ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3512{ 3605{
3513 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
3514 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
3515 return; 3608 return;
3516 3609
3547#endif 3640#endif
3548 3641
3549#if EV_CHILD_ENABLE 3642#if EV_CHILD_ENABLE
3550 3643
3551void 3644void
3552ev_child_start (EV_P_ ev_child *w) 3645ev_child_start (EV_P_ ev_child *w) EV_THROW
3553{ 3646{
3554#if EV_MULTIPLICITY 3647#if EV_MULTIPLICITY
3555 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));
3556#endif 3649#endif
3557 if (expect_false (ev_is_active (w))) 3650 if (expect_false (ev_is_active (w)))
3564 3657
3565 EV_FREQUENT_CHECK; 3658 EV_FREQUENT_CHECK;
3566} 3659}
3567 3660
3568void 3661void
3569ev_child_stop (EV_P_ ev_child *w) 3662ev_child_stop (EV_P_ ev_child *w) EV_THROW
3570{ 3663{
3571 clear_pending (EV_A_ (W)w); 3664 clear_pending (EV_A_ (W)w);
3572 if (expect_false (!ev_is_active (w))) 3665 if (expect_false (!ev_is_active (w)))
3573 return; 3666 return;
3574 3667
3741} 3834}
3742 3835
3743inline_size int 3836inline_size int
3744infy_newfd (void) 3837infy_newfd (void)
3745{ 3838{
3746#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3839#if defined IN_CLOEXEC && defined IN_NONBLOCK
3747 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3840 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3748 if (fd >= 0) 3841 if (fd >= 0)
3749 return fd; 3842 return fd;
3750#endif 3843#endif
3751 return inotify_init (); 3844 return inotify_init ();
3826#else 3919#else
3827# define EV_LSTAT(p,b) lstat (p, b) 3920# define EV_LSTAT(p,b) lstat (p, b)
3828#endif 3921#endif
3829 3922
3830void 3923void
3831ev_stat_stat (EV_P_ ev_stat *w) 3924ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3832{ 3925{
3833 if (lstat (w->path, &w->attr) < 0) 3926 if (lstat (w->path, &w->attr) < 0)
3834 w->attr.st_nlink = 0; 3927 w->attr.st_nlink = 0;
3835 else if (!w->attr.st_nlink) 3928 else if (!w->attr.st_nlink)
3836 w->attr.st_nlink = 1; 3929 w->attr.st_nlink = 1;
3875 ev_feed_event (EV_A_ w, EV_STAT); 3968 ev_feed_event (EV_A_ w, EV_STAT);
3876 } 3969 }
3877} 3970}
3878 3971
3879void 3972void
3880ev_stat_start (EV_P_ ev_stat *w) 3973ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3881{ 3974{
3882 if (expect_false (ev_is_active (w))) 3975 if (expect_false (ev_is_active (w)))
3883 return; 3976 return;
3884 3977
3885 ev_stat_stat (EV_A_ w); 3978 ev_stat_stat (EV_A_ w);
3906 3999
3907 EV_FREQUENT_CHECK; 4000 EV_FREQUENT_CHECK;
3908} 4001}
3909 4002
3910void 4003void
3911ev_stat_stop (EV_P_ ev_stat *w) 4004ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3912{ 4005{
3913 clear_pending (EV_A_ (W)w); 4006 clear_pending (EV_A_ (W)w);
3914 if (expect_false (!ev_is_active (w))) 4007 if (expect_false (!ev_is_active (w)))
3915 return; 4008 return;
3916 4009
3932} 4025}
3933#endif 4026#endif
3934 4027
3935#if EV_IDLE_ENABLE 4028#if EV_IDLE_ENABLE
3936void 4029void
3937ev_idle_start (EV_P_ ev_idle *w) 4030ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3938{ 4031{
3939 if (expect_false (ev_is_active (w))) 4032 if (expect_false (ev_is_active (w)))
3940 return; 4033 return;
3941 4034
3942 pri_adjust (EV_A_ (W)w); 4035 pri_adjust (EV_A_ (W)w);
3955 4048
3956 EV_FREQUENT_CHECK; 4049 EV_FREQUENT_CHECK;
3957} 4050}
3958 4051
3959void 4052void
3960ev_idle_stop (EV_P_ ev_idle *w) 4053ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3961{ 4054{
3962 clear_pending (EV_A_ (W)w); 4055 clear_pending (EV_A_ (W)w);
3963 if (expect_false (!ev_is_active (w))) 4056 if (expect_false (!ev_is_active (w)))
3964 return; 4057 return;
3965 4058
3979} 4072}
3980#endif 4073#endif
3981 4074
3982#if EV_PREPARE_ENABLE 4075#if EV_PREPARE_ENABLE
3983void 4076void
3984ev_prepare_start (EV_P_ ev_prepare *w) 4077ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3985{ 4078{
3986 if (expect_false (ev_is_active (w))) 4079 if (expect_false (ev_is_active (w)))
3987 return; 4080 return;
3988 4081
3989 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3994 4087
3995 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3996} 4089}
3997 4090
3998void 4091void
3999ev_prepare_stop (EV_P_ ev_prepare *w) 4092ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4000{ 4093{
4001 clear_pending (EV_A_ (W)w); 4094 clear_pending (EV_A_ (W)w);
4002 if (expect_false (!ev_is_active (w))) 4095 if (expect_false (!ev_is_active (w)))
4003 return; 4096 return;
4004 4097
4017} 4110}
4018#endif 4111#endif
4019 4112
4020#if EV_CHECK_ENABLE 4113#if EV_CHECK_ENABLE
4021void 4114void
4022ev_check_start (EV_P_ ev_check *w) 4115ev_check_start (EV_P_ ev_check *w) EV_THROW
4023{ 4116{
4024 if (expect_false (ev_is_active (w))) 4117 if (expect_false (ev_is_active (w)))
4025 return; 4118 return;
4026 4119
4027 EV_FREQUENT_CHECK; 4120 EV_FREQUENT_CHECK;
4032 4125
4033 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
4034} 4127}
4035 4128
4036void 4129void
4037ev_check_stop (EV_P_ ev_check *w) 4130ev_check_stop (EV_P_ ev_check *w) EV_THROW
4038{ 4131{
4039 clear_pending (EV_A_ (W)w); 4132 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4133 if (expect_false (!ev_is_active (w)))
4041 return; 4134 return;
4042 4135
4055} 4148}
4056#endif 4149#endif
4057 4150
4058#if EV_EMBED_ENABLE 4151#if EV_EMBED_ENABLE
4059void noinline 4152void noinline
4060ev_embed_sweep (EV_P_ ev_embed *w) 4153ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4061{ 4154{
4062 ev_run (w->other, EVRUN_NOWAIT); 4155 ev_run (w->other, EVRUN_NOWAIT);
4063} 4156}
4064 4157
4065static void 4158static void
4113 ev_idle_stop (EV_A_ idle); 4206 ev_idle_stop (EV_A_ idle);
4114} 4207}
4115#endif 4208#endif
4116 4209
4117void 4210void
4118ev_embed_start (EV_P_ ev_embed *w) 4211ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4119{ 4212{
4120 if (expect_false (ev_is_active (w))) 4213 if (expect_false (ev_is_active (w)))
4121 return; 4214 return;
4122 4215
4123 { 4216 {
4144 4237
4145 EV_FREQUENT_CHECK; 4238 EV_FREQUENT_CHECK;
4146} 4239}
4147 4240
4148void 4241void
4149ev_embed_stop (EV_P_ ev_embed *w) 4242ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4150{ 4243{
4151 clear_pending (EV_A_ (W)w); 4244 clear_pending (EV_A_ (W)w);
4152 if (expect_false (!ev_is_active (w))) 4245 if (expect_false (!ev_is_active (w)))
4153 return; 4246 return;
4154 4247
4164} 4257}
4165#endif 4258#endif
4166 4259
4167#if EV_FORK_ENABLE 4260#if EV_FORK_ENABLE
4168void 4261void
4169ev_fork_start (EV_P_ ev_fork *w) 4262ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4170{ 4263{
4171 if (expect_false (ev_is_active (w))) 4264 if (expect_false (ev_is_active (w)))
4172 return; 4265 return;
4173 4266
4174 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
4179 4272
4180 EV_FREQUENT_CHECK; 4273 EV_FREQUENT_CHECK;
4181} 4274}
4182 4275
4183void 4276void
4184ev_fork_stop (EV_P_ ev_fork *w) 4277ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4185{ 4278{
4186 clear_pending (EV_A_ (W)w); 4279 clear_pending (EV_A_ (W)w);
4187 if (expect_false (!ev_is_active (w))) 4280 if (expect_false (!ev_is_active (w)))
4188 return; 4281 return;
4189 4282
4202} 4295}
4203#endif 4296#endif
4204 4297
4205#if EV_CLEANUP_ENABLE 4298#if EV_CLEANUP_ENABLE
4206void 4299void
4207ev_cleanup_start (EV_P_ ev_cleanup *w) 4300ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4208{ 4301{
4209 if (expect_false (ev_is_active (w))) 4302 if (expect_false (ev_is_active (w)))
4210 return; 4303 return;
4211 4304
4212 EV_FREQUENT_CHECK; 4305 EV_FREQUENT_CHECK;
4219 ev_unref (EV_A); 4312 ev_unref (EV_A);
4220 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
4221} 4314}
4222 4315
4223void 4316void
4224ev_cleanup_stop (EV_P_ ev_cleanup *w) 4317ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4225{ 4318{
4226 clear_pending (EV_A_ (W)w); 4319 clear_pending (EV_A_ (W)w);
4227 if (expect_false (!ev_is_active (w))) 4320 if (expect_false (!ev_is_active (w)))
4228 return; 4321 return;
4229 4322
4243} 4336}
4244#endif 4337#endif
4245 4338
4246#if EV_ASYNC_ENABLE 4339#if EV_ASYNC_ENABLE
4247void 4340void
4248ev_async_start (EV_P_ ev_async *w) 4341ev_async_start (EV_P_ ev_async *w) EV_THROW
4249{ 4342{
4250 if (expect_false (ev_is_active (w))) 4343 if (expect_false (ev_is_active (w)))
4251 return; 4344 return;
4252 4345
4253 w->sent = 0; 4346 w->sent = 0;
4262 4355
4263 EV_FREQUENT_CHECK; 4356 EV_FREQUENT_CHECK;
4264} 4357}
4265 4358
4266void 4359void
4267ev_async_stop (EV_P_ ev_async *w) 4360ev_async_stop (EV_P_ ev_async *w) EV_THROW
4268{ 4361{
4269 clear_pending (EV_A_ (W)w); 4362 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4363 if (expect_false (!ev_is_active (w)))
4271 return; 4364 return;
4272 4365
4283 4376
4284 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
4285} 4378}
4286 4379
4287void 4380void
4288ev_async_send (EV_P_ ev_async *w) 4381ev_async_send (EV_P_ ev_async *w) EV_THROW
4289{ 4382{
4290 w->sent = 1; 4383 w->sent = 1;
4291 evpipe_write (EV_A_ &async_pending); 4384 evpipe_write (EV_A_ &async_pending);
4292} 4385}
4293#endif 4386#endif
4330 4423
4331 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));
4332} 4425}
4333 4426
4334void 4427void
4335ev_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
4336{ 4429{
4337 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));
4338 4431
4339 if (expect_false (!once)) 4432 if (expect_false (!once))
4340 { 4433 {
4362 4455
4363/*****************************************************************************/ 4456/*****************************************************************************/
4364 4457
4365#if EV_WALK_ENABLE 4458#if EV_WALK_ENABLE
4366void ecb_cold 4459void ecb_cold
4367ev_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
4368{ 4461{
4369 int i, j; 4462 int i, j;
4370 ev_watcher_list *wl, *wn; 4463 ev_watcher_list *wl, *wn;
4371 4464
4372 if (types & (EV_IO | EV_EMBED)) 4465 if (types & (EV_IO | EV_EMBED))

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