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Comparing libev/ev.c (file contents):
Revision 1.407 by root, Wed Jan 25 01:32:12 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
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
198
188#ifndef _WIN32 199#ifndef _WIN32
189# include <sys/time.h> 200# include <sys/time.h>
190# include <sys/wait.h> 201# include <sys/wait.h>
191# include <unistd.h> 202# include <unistd.h>
192#else 203#else
193# include <io.h> 204# include <io.h>
194# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
195# include <windows.h> 207# include <windows.h>
196# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
197# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
198# endif 210# endif
199# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
208#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
209 221
210/* 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 */
211 223
212/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
213#if defined (EV_NSIG) 225#if defined EV_NSIG
214/* use what's provided */ 226/* use what's provided */
215#elif defined (NSIG) 227#elif defined NSIG
216# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
217#elif defined(_NSIG) 229#elif defined _NSIG
218# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
219#elif defined (SIGMAX) 231#elif defined SIGMAX
220# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
221#elif defined (SIG_MAX) 233#elif defined SIG_MAX
222# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
223#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
224# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
225#elif defined (MAXSIG) 237#elif defined MAXSIG
226# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
227#elif defined (MAX_SIG) 239#elif defined MAX_SIG
228# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
229#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231#elif defined (_sys_nsig) 243#elif defined _sys_nsig
232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233#else 245#else
234# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
235/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
… …
248# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
249# endif 261# endif
250#endif 262#endif
251 263
252#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
255# else 267# else
256# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
257# endif 269# endif
258#endif 270#endif
… …
348#endif 360#endif
349 361
350/* 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, */
351/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
352#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
353# include <syscall.h> 365# include <sys/syscall.h>
354# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
355# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
358# else 370# else
… …
384# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
385#endif 397#endif
386 398
387#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
388/* 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 */
389# if !defined(_WIN32) && !defined(__hpux) 401# if !defined _WIN32 && !defined __hpux
390# include <sys/select.h> 402# include <sys/select.h>
391# endif 403# endif
392#endif 404#endif
393 405
394#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
… …
397/* 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 */
398# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
399# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
400# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
401# endif 413# endif
402#endif
403
404#if EV_SELECT_IS_WINSOCKET
405# include <winsock.h>
406#endif 414#endif
407 415
408#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
409/* 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 */
410# include <stdint.h> 418# include <stdint.h>
… …
496 */ 504 */
497 505
498#ifndef ECB_H 506#ifndef ECB_H
499#define ECB_H 507#define ECB_H
500 508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
501#ifdef _WIN32 512#ifdef _WIN32
502 typedef signed char int8_t; 513 typedef signed char int8_t;
503 typedef unsigned char uint8_t; 514 typedef unsigned char uint8_t;
504 typedef signed short int16_t; 515 typedef signed short int16_t;
505 typedef unsigned short uint16_t; 516 typedef unsigned short uint16_t;
… …
510 typedef unsigned long long uint64_t; 521 typedef unsigned long long uint64_t;
511 #else /* _MSC_VER || __BORLANDC__ */ 522 #else /* _MSC_VER || __BORLANDC__ */
512 typedef signed __int64 int64_t; 523 typedef signed __int64 int64_t;
513 typedef unsigned __int64 uint64_t; 524 typedef unsigned __int64 uint64_t;
514 #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;
515#else 536#else
516 #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
517#endif 543#endif
518 544
519/* many compilers define _GNUC_ to some versions but then only implement 545/* many compilers define _GNUC_ to some versions but then only implement
520 * what their idiot authors think are the "more important" extensions, 546 * what their idiot authors think are the "more important" extensions,
521 * causing enormous grief in return for some better fake benchmark numbers. 547 * causing enormous grief in return for some better fake benchmark numbers.
522 * or so. 548 * or so.
523 * 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
524 * 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.
525 */ 551 */
526#ifndef ECB_GCC_VERSION 552#ifndef ECB_GCC_VERSION
527 #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__
528 #define ECB_GCC_VERSION(major,minor) 0 554 #define ECB_GCC_VERSION(major,minor) 0
529 #else 555 #else
530 #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)))
531 #endif 557 #endif
532#endif 558#endif
533 559
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
534/*****************************************************************************/ 566/*****************************************************************************/
535 567
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* 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 */
538 570
539#if ECB_NO_THREADS || ECB_NO_SMP 571#if ECB_NO_THREADS
572 #define ECB_NO_SMP 1
573#endif
574
575#if ECB_NO_SMP
540 #define ECB_MEMORY_FENCE do { } while (0) 576 #define ECB_MEMORY_FENCE do { } while (0)
541#endif 577#endif
542 578
543#ifndef ECB_MEMORY_FENCE 579#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545 #if __i386 || __i386__ 581 #if __i386 || __i386__
546 #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")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
549 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
557 #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")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
560 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
561 #elif __sparc || __sparc__ 597 #elif __sparc || __sparc__
562 #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")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__
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")
565 #endif 612 #endif
566 #endif 613 #endif
567#endif 614#endif
568 615
569#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)
570 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
571 #define ECB_MEMORY_FENCE __sync_synchronize () 624 #define ECB_MEMORY_FENCE __sync_synchronize ()
572 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
573 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
574 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 625 #elif _MSC_VER >= 1400 /* VC++ 2005 */
575 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
576 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 627 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
577 #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 */
578 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
579 #elif defined(_WIN32) 630 #elif defined _WIN32
580 #include <WinNT.h> 631 #include <WinNT.h>
581 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
582 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
583 #include <mbarrier.h> 634 #include <mbarrier.h>
584 #define ECB_MEMORY_FENCE __machine_rw_barrier () 635 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
585 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
586 #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)
587 #endif 655 #endif
588#endif 656#endif
589 657
590#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
591 #if !ECB_AVOID_PTHREADS 659 #if !ECB_AVOID_PTHREADS
… …
603 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 671 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
604 #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)
605 #endif 673 #endif
606#endif 674#endif
607 675
608#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 676#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
609 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 677 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
610#endif 678#endif
611 679
612#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
613 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
614#endif 682#endif
615 683
616/*****************************************************************************/ 684/*****************************************************************************/
617
618#define ECB_C99 (__STDC_VERSION__ >= 199901L)
619 685
620#if __cplusplus 686#if __cplusplus
621 #define ecb_inline static inline 687 #define ecb_inline static inline
622#elif ECB_GCC_VERSION(2,5) 688#elif ECB_GCC_VERSION(2,5)
623 #define ecb_inline static __inline__ 689 #define ecb_inline static __inline__
… …
662#elif ECB_GCC_VERSION(3,0) 728#elif ECB_GCC_VERSION(3,0)
663 #define ecb_decltype(x) __typeof(x) 729 #define ecb_decltype(x) __typeof(x)
664#endif 730#endif
665 731
666#define ecb_noinline ecb_attribute ((__noinline__)) 732#define ecb_noinline ecb_attribute ((__noinline__))
667#define ecb_noreturn ecb_attribute ((__noreturn__))
668#define ecb_unused ecb_attribute ((__unused__)) 733#define ecb_unused ecb_attribute ((__unused__))
669#define ecb_const ecb_attribute ((__const__)) 734#define ecb_const ecb_attribute ((__const__))
670#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
671 742
672#if ECB_GCC_VERSION(4,3) 743#if ECB_GCC_VERSION(4,3)
673 #define ecb_artificial ecb_attribute ((__artificial__)) 744 #define ecb_artificial ecb_attribute ((__artificial__))
674 #define ecb_hot ecb_attribute ((__hot__)) 745 #define ecb_hot ecb_attribute ((__hot__))
675 #define ecb_cold ecb_attribute ((__cold__)) 746 #define ecb_cold ecb_attribute ((__cold__))
… …
766 837
767 return r + ecb_ld32 (x); 838 return r + ecb_ld32 (x);
768 } 839 }
769#endif 840#endif
770 841
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
771ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
772ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
773{ 849{
774 return ( (x * 0x0802U & 0x22110U) 850 return ( (x * 0x0802U & 0x22110U)
775 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
854 930
855#if ECB_GCC_VERSION(4,5) 931#if ECB_GCC_VERSION(4,5)
856 #define ecb_unreachable() __builtin_unreachable () 932 #define ecb_unreachable() __builtin_unreachable ()
857#else 933#else
858 /* this seems to work fine, but gcc always emits a warning for it :/ */ 934 /* this seems to work fine, but gcc always emits a warning for it :/ */
859 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 935 ecb_inline void ecb_unreachable (void) ecb_noreturn;
860 ecb_function_ void ecb_unreachable (void) { } 936 ecb_inline void ecb_unreachable (void) { }
861#endif 937#endif
862 938
863/* try to tell the compiler that some condition is definitely true */ 939/* try to tell the compiler that some condition is definitely true */
864#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
865 941
866ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
867ecb_function_ unsigned char 943ecb_inline unsigned char
868ecb_byteorder_helper (void) 944ecb_byteorder_helper (void)
869{ 945{
870 const uint32_t u = 0x11223344; 946 const uint32_t u = 0x11223344;
871 return *(unsigned char *)&u; 947 return *(unsigned char *)&u;
872} 948}
873 949
874ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 950ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
875ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
876ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 952ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
877ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
878 954
879#if ECB_GCC_VERSION(3,0) || ECB_C99 955#if ECB_GCC_VERSION(3,0) || ECB_C99
880 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
881#else 957#else
882 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
1082{ 1158{
1083 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
1084} 1160}
1085#endif 1161#endif
1086 1162
1087static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
1088 1164
1089void ecb_cold 1165void ecb_cold
1090ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1091{ 1167{
1092 syserr_cb = cb; 1168 syserr_cb = cb;
1093} 1169}
1094 1170
1095static void noinline ecb_cold 1171static void noinline ecb_cold
… …
1113 abort (); 1189 abort ();
1114 } 1190 }
1115} 1191}
1116 1192
1117static void * 1193static void *
1118ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
1119{ 1195{
1120#if __GLIBC__
1121 return realloc (ptr, size);
1122#else
1123 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
1124 * 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
1125 * 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.
1126 */ 1201 */
1127 1202
1128 if (size) 1203 if (size)
1129 return realloc (ptr, size); 1204 return realloc (ptr, size);
1130 1205
1131 free (ptr); 1206 free (ptr);
1132 return 0; 1207 return 0;
1133#endif
1134} 1208}
1135 1209
1136static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1137 1211
1138void ecb_cold 1212void ecb_cold
1139ev_set_allocator (void *(*cb)(void *ptr, long size)) 1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1140{ 1214{
1141 alloc = cb; 1215 alloc = cb;
1142} 1216}
1143 1217
1144inline_speed void * 1218inline_speed void *
… …
1261 1335
1262/*****************************************************************************/ 1336/*****************************************************************************/
1263 1337
1264#ifndef EV_HAVE_EV_TIME 1338#ifndef EV_HAVE_EV_TIME
1265ev_tstamp 1339ev_tstamp
1266ev_time (void) 1340ev_time (void) EV_THROW
1267{ 1341{
1268#if EV_USE_REALTIME 1342#if EV_USE_REALTIME
1269 if (expect_true (have_realtime)) 1343 if (expect_true (have_realtime))
1270 { 1344 {
1271 struct timespec ts; 1345 struct timespec ts;
… …
1295 return ev_time (); 1369 return ev_time ();
1296} 1370}
1297 1371
1298#if EV_MULTIPLICITY 1372#if EV_MULTIPLICITY
1299ev_tstamp 1373ev_tstamp
1300ev_now (EV_P) 1374ev_now (EV_P) EV_THROW
1301{ 1375{
1302 return ev_rt_now; 1376 return ev_rt_now;
1303} 1377}
1304#endif 1378#endif
1305 1379
1306void 1380void
1307ev_sleep (ev_tstamp delay) 1381ev_sleep (ev_tstamp delay) EV_THROW
1308{ 1382{
1309 if (delay > 0.) 1383 if (delay > 0.)
1310 { 1384 {
1311#if EV_USE_NANOSLEEP 1385#if EV_USE_NANOSLEEP
1312 struct timespec ts; 1386 struct timespec ts;
1313 1387
1314 EV_TS_SET (ts, delay); 1388 EV_TS_SET (ts, delay);
1315 nanosleep (&ts, 0); 1389 nanosleep (&ts, 0);
1316#elif defined(_WIN32) 1390#elif defined _WIN32
1317 Sleep ((unsigned long)(delay * 1e3)); 1391 Sleep ((unsigned long)(delay * 1e3));
1318#else 1392#else
1319 struct timeval tv; 1393 struct timeval tv;
1320 1394
1321 /* 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 */
… …
1393pendingcb (EV_P_ ev_prepare *w, int revents) 1467pendingcb (EV_P_ ev_prepare *w, int revents)
1394{ 1468{
1395} 1469}
1396 1470
1397void noinline 1471void noinline
1398ev_feed_event (EV_P_ void *w, int revents) 1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1399{ 1473{
1400 W w_ = (W)w; 1474 W w_ = (W)w;
1401 int pri = ABSPRI (w_); 1475 int pri = ABSPRI (w_);
1402 1476
1403 if (expect_false (w_->pending)) 1477 if (expect_false (w_->pending))
… …
1407 w_->pending = ++pendingcnt [pri]; 1481 w_->pending = ++pendingcnt [pri];
1408 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1409 pendings [pri][w_->pending - 1].w = w_; 1483 pendings [pri][w_->pending - 1].w = w_;
1410 pendings [pri][w_->pending - 1].events = revents; 1484 pendings [pri][w_->pending - 1].events = revents;
1411 } 1485 }
1486
1487 pendingpri = NUMPRI - 1;
1412} 1488}
1413 1489
1414inline_speed void 1490inline_speed void
1415feed_reverse (EV_P_ W w) 1491feed_reverse (EV_P_ W w)
1416{ 1492{
… …
1462 if (expect_true (!anfd->reify)) 1538 if (expect_true (!anfd->reify))
1463 fd_event_nocheck (EV_A_ fd, revents); 1539 fd_event_nocheck (EV_A_ fd, revents);
1464} 1540}
1465 1541
1466void 1542void
1467ev_feed_fd_event (EV_P_ int fd, int revents) 1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1468{ 1544{
1469 if (fd >= 0 && fd < anfdmax) 1545 if (fd >= 0 && fd < anfdmax)
1470 fd_event_nocheck (EV_A_ fd, revents); 1546 fd_event_nocheck (EV_A_ fd, revents);
1471} 1547}
1472 1548
… …
1821} 1897}
1822 1898
1823inline_speed void 1899inline_speed void
1824evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1900evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1825{ 1901{
1902 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1903
1826 if (expect_true (*flag)) 1904 if (expect_true (*flag))
1827 return; 1905 return;
1828 1906
1829 *flag = 1; 1907 *flag = 1;
1830
1831 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 */
1832 1909
1833 pipe_write_skipped = 1; 1910 pipe_write_skipped = 1;
1834 1911
1835 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 */
1836 1913
1837 if (pipe_write_wanted) 1914 if (pipe_write_wanted)
1838 { 1915 {
1839 int old_errno; 1916 int old_errno;
1840 1917
1841 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 1918 pipe_write_skipped = 0;
1919 ECB_MEMORY_FENCE_RELEASE;
1842 1920
1843 old_errno = errno; /* save errno because write will clobber it */ 1921 old_errno = errno; /* save errno because write will clobber it */
1844 1922
1845#if EV_USE_EVENTFD 1923#if EV_USE_EVENTFD
1846 if (evfd >= 0) 1924 if (evfd >= 0)
… …
1849 write (evfd, &counter, sizeof (uint64_t)); 1927 write (evfd, &counter, sizeof (uint64_t));
1850 } 1928 }
1851 else 1929 else
1852#endif 1930#endif
1853 { 1931 {
1854 /* win32 people keep sending patches that change this write() to send() */ 1932#ifdef _WIN32
1855 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1933 WSABUF buf;
1856 /* so when you think this write should be a send instead, please find out */ 1934 DWORD sent;
1857 /* where your send() is from - it's definitely not the microsoft send, and */ 1935 buf.buf = &buf;
1858 /* tell me. thank you. */ 1936 buf.len = 1;
1937 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1938#else
1859 write (evpipe [1], &(evpipe [1]), 1); 1939 write (evpipe [1], &(evpipe [1]), 1);
1940#endif
1860 } 1941 }
1861 1942
1862 errno = old_errno; 1943 errno = old_errno;
1863 } 1944 }
1864} 1945}
… …
1879 read (evfd, &counter, sizeof (uint64_t)); 1960 read (evfd, &counter, sizeof (uint64_t));
1880 } 1961 }
1881 else 1962 else
1882#endif 1963#endif
1883 { 1964 {
1884 char dummy; 1965 char dummy[4];
1885 /* 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
1886 read (evpipe [0], &dummy, 1); 1974 read (evpipe [0], &dummy, sizeof (dummy));
1975#endif
1887 } 1976 }
1888 } 1977 }
1889 1978
1890 pipe_write_skipped = 0; 1979 pipe_write_skipped = 0;
1980
1981 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1891 1982
1892#if EV_SIGNAL_ENABLE 1983#if EV_SIGNAL_ENABLE
1893 if (sig_pending) 1984 if (sig_pending)
1894 { 1985 {
1895 sig_pending = 0; 1986 sig_pending = 0;
1987
1988 ECB_MEMORY_FENCE;
1896 1989
1897 for (i = EV_NSIG - 1; i--; ) 1990 for (i = EV_NSIG - 1; i--; )
1898 if (expect_false (signals [i].pending)) 1991 if (expect_false (signals [i].pending))
1899 ev_feed_signal_event (EV_A_ i + 1); 1992 ev_feed_signal_event (EV_A_ i + 1);
1900 } 1993 }
… …
1902 1995
1903#if EV_ASYNC_ENABLE 1996#if EV_ASYNC_ENABLE
1904 if (async_pending) 1997 if (async_pending)
1905 { 1998 {
1906 async_pending = 0; 1999 async_pending = 0;
2000
2001 ECB_MEMORY_FENCE;
1907 2002
1908 for (i = asynccnt; i--; ) 2003 for (i = asynccnt; i--; )
1909 if (asyncs [i]->sent) 2004 if (asyncs [i]->sent)
1910 { 2005 {
1911 asyncs [i]->sent = 0; 2006 asyncs [i]->sent = 0;
2007 ECB_MEMORY_FENCE_RELEASE;
1912 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2008 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1913 } 2009 }
1914 } 2010 }
1915#endif 2011#endif
1916} 2012}
1917 2013
1918/*****************************************************************************/ 2014/*****************************************************************************/
1919 2015
1920void 2016void
1921ev_feed_signal (int signum) 2017ev_feed_signal (int signum) EV_THROW
1922{ 2018{
1923#if EV_MULTIPLICITY 2019#if EV_MULTIPLICITY
1924 EV_P = signals [signum - 1].loop; 2020 EV_P = signals [signum - 1].loop;
1925 2021
1926 if (!EV_A) 2022 if (!EV_A)
… …
1943 2039
1944 ev_feed_signal (signum); 2040 ev_feed_signal (signum);
1945} 2041}
1946 2042
1947void noinline 2043void noinline
1948ev_feed_signal_event (EV_P_ int signum) 2044ev_feed_signal_event (EV_P_ int signum) EV_THROW
1949{ 2045{
1950 WL w; 2046 WL w;
1951 2047
1952 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2048 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1953 return; 2049 return;
1954 2050
1955 --signum; 2051 --signum;
1956 2052
1957#if EV_MULTIPLICITY 2053#if EV_MULTIPLICITY
… …
1961 if (expect_false (signals [signum].loop != EV_A)) 2057 if (expect_false (signals [signum].loop != EV_A))
1962 return; 2058 return;
1963#endif 2059#endif
1964 2060
1965 signals [signum].pending = 0; 2061 signals [signum].pending = 0;
2062 ECB_MEMORY_FENCE_RELEASE;
1966 2063
1967 for (w = signals [signum].head; w; w = w->next) 2064 for (w = signals [signum].head; w; w = w->next)
1968 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2065 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1969} 2066}
1970 2067
… …
2069#if EV_USE_SELECT 2166#if EV_USE_SELECT
2070# include "ev_select.c" 2167# include "ev_select.c"
2071#endif 2168#endif
2072 2169
2073int ecb_cold 2170int ecb_cold
2074ev_version_major (void) 2171ev_version_major (void) EV_THROW
2075{ 2172{
2076 return EV_VERSION_MAJOR; 2173 return EV_VERSION_MAJOR;
2077} 2174}
2078 2175
2079int ecb_cold 2176int ecb_cold
2080ev_version_minor (void) 2177ev_version_minor (void) EV_THROW
2081{ 2178{
2082 return EV_VERSION_MINOR; 2179 return EV_VERSION_MINOR;
2083} 2180}
2084 2181
2085/* 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 */
… …
2093 || getgid () != getegid (); 2190 || getgid () != getegid ();
2094#endif 2191#endif
2095} 2192}
2096 2193
2097unsigned int ecb_cold 2194unsigned int ecb_cold
2098ev_supported_backends (void) 2195ev_supported_backends (void) EV_THROW
2099{ 2196{
2100 unsigned int flags = 0; 2197 unsigned int flags = 0;
2101 2198
2102 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2199 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2103 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2200 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2107 2204
2108 return flags; 2205 return flags;
2109} 2206}
2110 2207
2111unsigned int ecb_cold 2208unsigned int ecb_cold
2112ev_recommended_backends (void) 2209ev_recommended_backends (void) EV_THROW
2113{ 2210{
2114 unsigned int flags = ev_supported_backends (); 2211 unsigned int flags = ev_supported_backends ();
2115 2212
2116#ifndef __NetBSD__ 2213#ifndef __NetBSD__
2117 /* kqueue is borked on everything but netbsd apparently */ 2214 /* kqueue is borked on everything but netbsd apparently */
… …
2129 2226
2130 return flags; 2227 return flags;
2131} 2228}
2132 2229
2133unsigned int ecb_cold 2230unsigned int ecb_cold
2134ev_embeddable_backends (void) 2231ev_embeddable_backends (void) EV_THROW
2135{ 2232{
2136 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2233 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2137 2234
2138 /* 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 */
2139 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 */
… …
2141 2238
2142 return flags; 2239 return flags;
2143} 2240}
2144 2241
2145unsigned int 2242unsigned int
2146ev_backend (EV_P) 2243ev_backend (EV_P) EV_THROW
2147{ 2244{
2148 return backend; 2245 return backend;
2149} 2246}
2150 2247
2151#if EV_FEATURE_API 2248#if EV_FEATURE_API
2152unsigned int 2249unsigned int
2153ev_iteration (EV_P) 2250ev_iteration (EV_P) EV_THROW
2154{ 2251{
2155 return loop_count; 2252 return loop_count;
2156} 2253}
2157 2254
2158unsigned int 2255unsigned int
2159ev_depth (EV_P) 2256ev_depth (EV_P) EV_THROW
2160{ 2257{
2161 return loop_depth; 2258 return loop_depth;
2162} 2259}
2163 2260
2164void 2261void
2165ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2262ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2166{ 2263{
2167 io_blocktime = interval; 2264 io_blocktime = interval;
2168} 2265}
2169 2266
2170void 2267void
2171ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2268ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2172{ 2269{
2173 timeout_blocktime = interval; 2270 timeout_blocktime = interval;
2174} 2271}
2175 2272
2176void 2273void
2177ev_set_userdata (EV_P_ void *data) 2274ev_set_userdata (EV_P_ void *data) EV_THROW
2178{ 2275{
2179 userdata = data; 2276 userdata = data;
2180} 2277}
2181 2278
2182void * 2279void *
2183ev_userdata (EV_P) 2280ev_userdata (EV_P) EV_THROW
2184{ 2281{
2185 return userdata; 2282 return userdata;
2186} 2283}
2187 2284
2188void 2285void
2189ev_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
2190{ 2287{
2191 invoke_cb = invoke_pending_cb; 2288 invoke_cb = invoke_pending_cb;
2192} 2289}
2193 2290
2194void 2291void
2195ev_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
2196{ 2293{
2197 release_cb = release; 2294 release_cb = release;
2198 acquire_cb = acquire; 2295 acquire_cb = acquire;
2199} 2296}
2200#endif 2297#endif
2201 2298
2202/* initialise a loop structure, must be zero-initialised */ 2299/* initialise a loop structure, must be zero-initialised */
2203static void noinline ecb_cold 2300static void noinline ecb_cold
2204loop_init (EV_P_ unsigned int flags) 2301loop_init (EV_P_ unsigned int flags) EV_THROW
2205{ 2302{
2206 if (!backend) 2303 if (!backend)
2207 { 2304 {
2208 origflags = flags; 2305 origflags = flags;
2209 2306
… …
2314 EV_INVOKE_PENDING; 2411 EV_INVOKE_PENDING;
2315 } 2412 }
2316#endif 2413#endif
2317 2414
2318#if EV_CHILD_ENABLE 2415#if EV_CHILD_ENABLE
2319 if (ev_is_active (&childev)) 2416 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2320 { 2417 {
2321 ev_ref (EV_A); /* child watcher */ 2418 ev_ref (EV_A); /* child watcher */
2322 ev_signal_stop (EV_A_ &childev); 2419 ev_signal_stop (EV_A_ &childev);
2323 } 2420 }
2324#endif 2421#endif
… …
2451 EV_WIN32_CLOSE_FD (evpipe [1]); 2548 EV_WIN32_CLOSE_FD (evpipe [1]);
2452 } 2549 }
2453 2550
2454#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2551#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2455 evpipe_init (EV_A); 2552 evpipe_init (EV_A);
2456 /* now iterate over everything, in case we missed something */ 2553 /* iterate over everything, in case we missed something before */
2457 pipecb (EV_A_ &pipe_w, EV_READ); 2554 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2458#endif 2555#endif
2459 } 2556 }
2460 2557
2461 postfork = 0; 2558 postfork = 0;
2462} 2559}
2463 2560
2464#if EV_MULTIPLICITY 2561#if EV_MULTIPLICITY
2465 2562
2466struct ev_loop * ecb_cold 2563struct ev_loop * ecb_cold
2467ev_loop_new (unsigned int flags) 2564ev_loop_new (unsigned int flags) EV_THROW
2468{ 2565{
2469 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2566 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2470 2567
2471 memset (EV_A, 0, sizeof (struct ev_loop)); 2568 memset (EV_A, 0, sizeof (struct ev_loop));
2472 loop_init (EV_A_ flags); 2569 loop_init (EV_A_ flags);
… …
2516} 2613}
2517#endif 2614#endif
2518 2615
2519#if EV_FEATURE_API 2616#if EV_FEATURE_API
2520void ecb_cold 2617void ecb_cold
2521ev_verify (EV_P) 2618ev_verify (EV_P) EV_THROW
2522{ 2619{
2523#if EV_VERIFY 2620#if EV_VERIFY
2524 int i; 2621 int i;
2525 WL w; 2622 WL w, w2;
2526 2623
2527 assert (activecnt >= -1); 2624 assert (activecnt >= -1);
2528 2625
2529 assert (fdchangemax >= fdchangecnt); 2626 assert (fdchangemax >= fdchangecnt);
2530 for (i = 0; i < fdchangecnt; ++i) 2627 for (i = 0; i < fdchangecnt; ++i)
2531 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2628 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2532 2629
2533 assert (anfdmax >= 0); 2630 assert (anfdmax >= 0);
2534 for (i = 0; i < anfdmax; ++i) 2631 for (i = 0; i < anfdmax; ++i)
2632 {
2633 int j = 0;
2634
2535 for (w = anfds [i].head; w; w = w->next) 2635 for (w = w2 = anfds [i].head; w; w = w->next)
2536 { 2636 {
2537 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
2538 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));
2539 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));
2540 } 2647 }
2648 }
2541 2649
2542 assert (timermax >= timercnt); 2650 assert (timermax >= timercnt);
2543 verify_heap (EV_A_ timers, timercnt); 2651 verify_heap (EV_A_ timers, timercnt);
2544 2652
2545#if EV_PERIODIC_ENABLE 2653#if EV_PERIODIC_ENABLE
… …
2595#if EV_MULTIPLICITY 2703#if EV_MULTIPLICITY
2596struct ev_loop * ecb_cold 2704struct ev_loop * ecb_cold
2597#else 2705#else
2598int 2706int
2599#endif 2707#endif
2600ev_default_loop (unsigned int flags) 2708ev_default_loop (unsigned int flags) EV_THROW
2601{ 2709{
2602 if (!ev_default_loop_ptr) 2710 if (!ev_default_loop_ptr)
2603 { 2711 {
2604#if EV_MULTIPLICITY 2712#if EV_MULTIPLICITY
2605 EV_P = ev_default_loop_ptr = &default_loop_struct; 2713 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2624 2732
2625 return ev_default_loop_ptr; 2733 return ev_default_loop_ptr;
2626} 2734}
2627 2735
2628void 2736void
2629ev_loop_fork (EV_P) 2737ev_loop_fork (EV_P) EV_THROW
2630{ 2738{
2631 postfork = 1; /* must be in line with ev_default_fork */ 2739 postfork = 1;
2632} 2740}
2633 2741
2634/*****************************************************************************/ 2742/*****************************************************************************/
2635 2743
2636void 2744void
… …
2638{ 2746{
2639 EV_CB_INVOKE ((W)w, revents); 2747 EV_CB_INVOKE ((W)w, revents);
2640} 2748}
2641 2749
2642unsigned int 2750unsigned int
2643ev_pending_count (EV_P) 2751ev_pending_count (EV_P) EV_THROW
2644{ 2752{
2645 int pri; 2753 int pri;
2646 unsigned int count = 0; 2754 unsigned int count = 0;
2647 2755
2648 for (pri = NUMPRI; pri--; ) 2756 for (pri = NUMPRI; pri--; )
… …
2652} 2760}
2653 2761
2654void noinline 2762void noinline
2655ev_invoke_pending (EV_P) 2763ev_invoke_pending (EV_P)
2656{ 2764{
2657 int pri; 2765 pendingpri = NUMPRI;
2658 2766
2659 for (pri = NUMPRI; pri--; ) 2767 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2768 {
2769 --pendingpri;
2770
2660 while (pendingcnt [pri]) 2771 while (pendingcnt [pendingpri])
2661 { 2772 {
2662 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2773 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2663 2774
2664 p->w->pending = 0; 2775 p->w->pending = 0;
2665 EV_CB_INVOKE (p->w, p->events); 2776 EV_CB_INVOKE (p->w, p->events);
2666 EV_FREQUENT_CHECK; 2777 EV_FREQUENT_CHECK;
2667 } 2778 }
2779 }
2668} 2780}
2669 2781
2670#if EV_IDLE_ENABLE 2782#if EV_IDLE_ENABLE
2671/* make idle watchers pending. this handles the "call-idle */ 2783/* make idle watchers pending. this handles the "call-idle */
2672/* only when higher priorities are idle" logic */ 2784/* only when higher priorities are idle" logic */
… …
2762{ 2874{
2763 EV_FREQUENT_CHECK; 2875 EV_FREQUENT_CHECK;
2764 2876
2765 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2877 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2766 { 2878 {
2767 int feed_count = 0;
2768
2769 do 2879 do
2770 { 2880 {
2771 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2881 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2772 2882
2773 /*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)));*/
… …
2907 3017
2908 mn_now = ev_rt_now; 3018 mn_now = ev_rt_now;
2909 } 3019 }
2910} 3020}
2911 3021
2912void 3022int
2913ev_run (EV_P_ int flags) 3023ev_run (EV_P_ int flags)
2914{ 3024{
2915#if EV_FEATURE_API 3025#if EV_FEATURE_API
2916 ++loop_depth; 3026 ++loop_depth;
2917#endif 3027#endif
… …
3032 backend_poll (EV_A_ waittime); 3142 backend_poll (EV_A_ waittime);
3033 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3143 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3034 3144
3035 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3145 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3036 3146
3147 ECB_MEMORY_FENCE_ACQUIRE;
3037 if (pipe_write_skipped) 3148 if (pipe_write_skipped)
3038 { 3149 {
3039 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)));
3040 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3151 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3041 } 3152 }
… …
3074 loop_done = EVBREAK_CANCEL; 3185 loop_done = EVBREAK_CANCEL;
3075 3186
3076#if EV_FEATURE_API 3187#if EV_FEATURE_API
3077 --loop_depth; 3188 --loop_depth;
3078#endif 3189#endif
3190
3191 return activecnt;
3079} 3192}
3080 3193
3081void 3194void
3082ev_break (EV_P_ int how) 3195ev_break (EV_P_ int how) EV_THROW
3083{ 3196{
3084 loop_done = how; 3197 loop_done = how;
3085} 3198}
3086 3199
3087void 3200void
3088ev_ref (EV_P) 3201ev_ref (EV_P) EV_THROW
3089{ 3202{
3090 ++activecnt; 3203 ++activecnt;
3091} 3204}
3092 3205
3093void 3206void
3094ev_unref (EV_P) 3207ev_unref (EV_P) EV_THROW
3095{ 3208{
3096 --activecnt; 3209 --activecnt;
3097} 3210}
3098 3211
3099void 3212void
3100ev_now_update (EV_P) 3213ev_now_update (EV_P) EV_THROW
3101{ 3214{
3102 time_update (EV_A_ 1e100); 3215 time_update (EV_A_ 1e100);
3103} 3216}
3104 3217
3105void 3218void
3106ev_suspend (EV_P) 3219ev_suspend (EV_P) EV_THROW
3107{ 3220{
3108 ev_now_update (EV_A); 3221 ev_now_update (EV_A);
3109} 3222}
3110 3223
3111void 3224void
3112ev_resume (EV_P) 3225ev_resume (EV_P) EV_THROW
3113{ 3226{
3114 ev_tstamp mn_prev = mn_now; 3227 ev_tstamp mn_prev = mn_now;
3115 3228
3116 ev_now_update (EV_A); 3229 ev_now_update (EV_A);
3117 timers_reschedule (EV_A_ mn_now - mn_prev); 3230 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3156 w->pending = 0; 3269 w->pending = 0;
3157 } 3270 }
3158} 3271}
3159 3272
3160int 3273int
3161ev_clear_pending (EV_P_ void *w) 3274ev_clear_pending (EV_P_ void *w) EV_THROW
3162{ 3275{
3163 W w_ = (W)w; 3276 W w_ = (W)w;
3164 int pending = w_->pending; 3277 int pending = w_->pending;
3165 3278
3166 if (expect_true (pending)) 3279 if (expect_true (pending))
… …
3199} 3312}
3200 3313
3201/*****************************************************************************/ 3314/*****************************************************************************/
3202 3315
3203void noinline 3316void noinline
3204ev_io_start (EV_P_ ev_io *w) 3317ev_io_start (EV_P_ ev_io *w) EV_THROW
3205{ 3318{
3206 int fd = w->fd; 3319 int fd = w->fd;
3207 3320
3208 if (expect_false (ev_is_active (w))) 3321 if (expect_false (ev_is_active (w)))
3209 return; 3322 return;
… …
3215 3328
3216 ev_start (EV_A_ (W)w, 1); 3329 ev_start (EV_A_ (W)w, 1);
3217 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3330 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3218 wlist_add (&anfds[fd].head, (WL)w); 3331 wlist_add (&anfds[fd].head, (WL)w);
3219 3332
3333 /* common bug, apparently */
3334 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3335
3220 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);
3221 w->events &= ~EV__IOFDSET; 3337 w->events &= ~EV__IOFDSET;
3222 3338
3223 EV_FREQUENT_CHECK; 3339 EV_FREQUENT_CHECK;
3224} 3340}
3225 3341
3226void noinline 3342void noinline
3227ev_io_stop (EV_P_ ev_io *w) 3343ev_io_stop (EV_P_ ev_io *w) EV_THROW
3228{ 3344{
3229 clear_pending (EV_A_ (W)w); 3345 clear_pending (EV_A_ (W)w);
3230 if (expect_false (!ev_is_active (w))) 3346 if (expect_false (!ev_is_active (w)))
3231 return; 3347 return;
3232 3348
… …
3241 3357
3242 EV_FREQUENT_CHECK; 3358 EV_FREQUENT_CHECK;
3243} 3359}
3244 3360
3245void noinline 3361void noinline
3246ev_timer_start (EV_P_ ev_timer *w) 3362ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3247{ 3363{
3248 if (expect_false (ev_is_active (w))) 3364 if (expect_false (ev_is_active (w)))
3249 return; 3365 return;
3250 3366
3251 ev_at (w) += mn_now; 3367 ev_at (w) += mn_now;
… …
3265 3381
3266 /*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));*/
3267} 3383}
3268 3384
3269void noinline 3385void noinline
3270ev_timer_stop (EV_P_ ev_timer *w) 3386ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3271{ 3387{
3272 clear_pending (EV_A_ (W)w); 3388 clear_pending (EV_A_ (W)w);
3273 if (expect_false (!ev_is_active (w))) 3389 if (expect_false (!ev_is_active (w)))
3274 return; 3390 return;
3275 3391
… …
3295 3411
3296 EV_FREQUENT_CHECK; 3412 EV_FREQUENT_CHECK;
3297} 3413}
3298 3414
3299void noinline 3415void noinline
3300ev_timer_again (EV_P_ ev_timer *w) 3416ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3301{ 3417{
3302 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
3303 3419
3304 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
3305 3421
… …
3322 3438
3323 EV_FREQUENT_CHECK; 3439 EV_FREQUENT_CHECK;
3324} 3440}
3325 3441
3326ev_tstamp 3442ev_tstamp
3327ev_timer_remaining (EV_P_ ev_timer *w) 3443ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3328{ 3444{
3329 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3445 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3330} 3446}
3331 3447
3332#if EV_PERIODIC_ENABLE 3448#if EV_PERIODIC_ENABLE
3333void noinline 3449void noinline
3334ev_periodic_start (EV_P_ ev_periodic *w) 3450ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3335{ 3451{
3336 if (expect_false (ev_is_active (w))) 3452 if (expect_false (ev_is_active (w)))
3337 return; 3453 return;
3338 3454
3339 if (w->reschedule_cb) 3455 if (w->reschedule_cb)
… …
3359 3475
3360 /*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));*/
3361} 3477}
3362 3478
3363void noinline 3479void noinline
3364ev_periodic_stop (EV_P_ ev_periodic *w) 3480ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3365{ 3481{
3366 clear_pending (EV_A_ (W)w); 3482 clear_pending (EV_A_ (W)w);
3367 if (expect_false (!ev_is_active (w))) 3483 if (expect_false (!ev_is_active (w)))
3368 return; 3484 return;
3369 3485
… …
3387 3503
3388 EV_FREQUENT_CHECK; 3504 EV_FREQUENT_CHECK;
3389} 3505}
3390 3506
3391void noinline 3507void noinline
3392ev_periodic_again (EV_P_ ev_periodic *w) 3508ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3393{ 3509{
3394 /* TODO: use adjustheap and recalculation */ 3510 /* TODO: use adjustheap and recalculation */
3395 ev_periodic_stop (EV_A_ w); 3511 ev_periodic_stop (EV_A_ w);
3396 ev_periodic_start (EV_A_ w); 3512 ev_periodic_start (EV_A_ w);
3397} 3513}
… …
3402#endif 3518#endif
3403 3519
3404#if EV_SIGNAL_ENABLE 3520#if EV_SIGNAL_ENABLE
3405 3521
3406void noinline 3522void noinline
3407ev_signal_start (EV_P_ ev_signal *w) 3523ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3408{ 3524{
3409 if (expect_false (ev_is_active (w))) 3525 if (expect_false (ev_is_active (w)))
3410 return; 3526 return;
3411 3527
3412 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));
… …
3483 3599
3484 EV_FREQUENT_CHECK; 3600 EV_FREQUENT_CHECK;
3485} 3601}
3486 3602
3487void noinline 3603void noinline
3488ev_signal_stop (EV_P_ ev_signal *w) 3604ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3489{ 3605{
3490 clear_pending (EV_A_ (W)w); 3606 clear_pending (EV_A_ (W)w);
3491 if (expect_false (!ev_is_active (w))) 3607 if (expect_false (!ev_is_active (w)))
3492 return; 3608 return;
3493 3609
… …
3524#endif 3640#endif
3525 3641
3526#if EV_CHILD_ENABLE 3642#if EV_CHILD_ENABLE
3527 3643
3528void 3644void
3529ev_child_start (EV_P_ ev_child *w) 3645ev_child_start (EV_P_ ev_child *w) EV_THROW
3530{ 3646{
3531#if EV_MULTIPLICITY 3647#if EV_MULTIPLICITY
3532 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));
3533#endif 3649#endif
3534 if (expect_false (ev_is_active (w))) 3650 if (expect_false (ev_is_active (w)))
… …
3541 3657
3542 EV_FREQUENT_CHECK; 3658 EV_FREQUENT_CHECK;
3543} 3659}
3544 3660
3545void 3661void
3546ev_child_stop (EV_P_ ev_child *w) 3662ev_child_stop (EV_P_ ev_child *w) EV_THROW
3547{ 3663{
3548 clear_pending (EV_A_ (W)w); 3664 clear_pending (EV_A_ (W)w);
3549 if (expect_false (!ev_is_active (w))) 3665 if (expect_false (!ev_is_active (w)))
3550 return; 3666 return;
3551 3667
… …
3718} 3834}
3719 3835
3720inline_size int 3836inline_size int
3721infy_newfd (void) 3837infy_newfd (void)
3722{ 3838{
3723#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3839#if defined IN_CLOEXEC && defined IN_NONBLOCK
3724 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3840 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3725 if (fd >= 0) 3841 if (fd >= 0)
3726 return fd; 3842 return fd;
3727#endif 3843#endif
3728 return inotify_init (); 3844 return inotify_init ();
… …
3803#else 3919#else
3804# define EV_LSTAT(p,b) lstat (p, b) 3920# define EV_LSTAT(p,b) lstat (p, b)
3805#endif 3921#endif
3806 3922
3807void 3923void
3808ev_stat_stat (EV_P_ ev_stat *w) 3924ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3809{ 3925{
3810 if (lstat (w->path, &w->attr) < 0) 3926 if (lstat (w->path, &w->attr) < 0)
3811 w->attr.st_nlink = 0; 3927 w->attr.st_nlink = 0;
3812 else if (!w->attr.st_nlink) 3928 else if (!w->attr.st_nlink)
3813 w->attr.st_nlink = 1; 3929 w->attr.st_nlink = 1;
… …
3852 ev_feed_event (EV_A_ w, EV_STAT); 3968 ev_feed_event (EV_A_ w, EV_STAT);
3853 } 3969 }
3854} 3970}
3855 3971
3856void 3972void
3857ev_stat_start (EV_P_ ev_stat *w) 3973ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3858{ 3974{
3859 if (expect_false (ev_is_active (w))) 3975 if (expect_false (ev_is_active (w)))
3860 return; 3976 return;
3861 3977
3862 ev_stat_stat (EV_A_ w); 3978 ev_stat_stat (EV_A_ w);
… …
3883 3999
3884 EV_FREQUENT_CHECK; 4000 EV_FREQUENT_CHECK;
3885} 4001}
3886 4002
3887void 4003void
3888ev_stat_stop (EV_P_ ev_stat *w) 4004ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3889{ 4005{
3890 clear_pending (EV_A_ (W)w); 4006 clear_pending (EV_A_ (W)w);
3891 if (expect_false (!ev_is_active (w))) 4007 if (expect_false (!ev_is_active (w)))
3892 return; 4008 return;
3893 4009
… …
3909} 4025}
3910#endif 4026#endif
3911 4027
3912#if EV_IDLE_ENABLE 4028#if EV_IDLE_ENABLE
3913void 4029void
3914ev_idle_start (EV_P_ ev_idle *w) 4030ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3915{ 4031{
3916 if (expect_false (ev_is_active (w))) 4032 if (expect_false (ev_is_active (w)))
3917 return; 4033 return;
3918 4034
3919 pri_adjust (EV_A_ (W)w); 4035 pri_adjust (EV_A_ (W)w);
… …
3932 4048
3933 EV_FREQUENT_CHECK; 4049 EV_FREQUENT_CHECK;
3934} 4050}
3935 4051
3936void 4052void
3937ev_idle_stop (EV_P_ ev_idle *w) 4053ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3938{ 4054{
3939 clear_pending (EV_A_ (W)w); 4055 clear_pending (EV_A_ (W)w);
3940 if (expect_false (!ev_is_active (w))) 4056 if (expect_false (!ev_is_active (w)))
3941 return; 4057 return;
3942 4058
… …
3956} 4072}
3957#endif 4073#endif
3958 4074
3959#if EV_PREPARE_ENABLE 4075#if EV_PREPARE_ENABLE
3960void 4076void
3961ev_prepare_start (EV_P_ ev_prepare *w) 4077ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3962{ 4078{
3963 if (expect_false (ev_is_active (w))) 4079 if (expect_false (ev_is_active (w)))
3964 return; 4080 return;
3965 4081
3966 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
… …
3971 4087
3972 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3973} 4089}
3974 4090
3975void 4091void
3976ev_prepare_stop (EV_P_ ev_prepare *w) 4092ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3977{ 4093{
3978 clear_pending (EV_A_ (W)w); 4094 clear_pending (EV_A_ (W)w);
3979 if (expect_false (!ev_is_active (w))) 4095 if (expect_false (!ev_is_active (w)))
3980 return; 4096 return;
3981 4097
… …
3994} 4110}
3995#endif 4111#endif
3996 4112
3997#if EV_CHECK_ENABLE 4113#if EV_CHECK_ENABLE
3998void 4114void
3999ev_check_start (EV_P_ ev_check *w) 4115ev_check_start (EV_P_ ev_check *w) EV_THROW
4000{ 4116{
4001 if (expect_false (ev_is_active (w))) 4117 if (expect_false (ev_is_active (w)))
4002 return; 4118 return;
4003 4119
4004 EV_FREQUENT_CHECK; 4120 EV_FREQUENT_CHECK;
… …
4009 4125
4010 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
4011} 4127}
4012 4128
4013void 4129void
4014ev_check_stop (EV_P_ ev_check *w) 4130ev_check_stop (EV_P_ ev_check *w) EV_THROW
4015{ 4131{
4016 clear_pending (EV_A_ (W)w); 4132 clear_pending (EV_A_ (W)w);
4017 if (expect_false (!ev_is_active (w))) 4133 if (expect_false (!ev_is_active (w)))
4018 return; 4134 return;
4019 4135
… …
4032} 4148}
4033#endif 4149#endif
4034 4150
4035#if EV_EMBED_ENABLE 4151#if EV_EMBED_ENABLE
4036void noinline 4152void noinline
4037ev_embed_sweep (EV_P_ ev_embed *w) 4153ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4038{ 4154{
4039 ev_run (w->other, EVRUN_NOWAIT); 4155 ev_run (w->other, EVRUN_NOWAIT);
4040} 4156}
4041 4157
4042static void 4158static void
… …
4090 ev_idle_stop (EV_A_ idle); 4206 ev_idle_stop (EV_A_ idle);
4091} 4207}
4092#endif 4208#endif
4093 4209
4094void 4210void
4095ev_embed_start (EV_P_ ev_embed *w) 4211ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4096{ 4212{
4097 if (expect_false (ev_is_active (w))) 4213 if (expect_false (ev_is_active (w)))
4098 return; 4214 return;
4099 4215
4100 { 4216 {
… …
4121 4237
4122 EV_FREQUENT_CHECK; 4238 EV_FREQUENT_CHECK;
4123} 4239}
4124 4240
4125void 4241void
4126ev_embed_stop (EV_P_ ev_embed *w) 4242ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4127{ 4243{
4128 clear_pending (EV_A_ (W)w); 4244 clear_pending (EV_A_ (W)w);
4129 if (expect_false (!ev_is_active (w))) 4245 if (expect_false (!ev_is_active (w)))
4130 return; 4246 return;
4131 4247
… …
4141} 4257}
4142#endif 4258#endif
4143 4259
4144#if EV_FORK_ENABLE 4260#if EV_FORK_ENABLE
4145void 4261void
4146ev_fork_start (EV_P_ ev_fork *w) 4262ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4147{ 4263{
4148 if (expect_false (ev_is_active (w))) 4264 if (expect_false (ev_is_active (w)))
4149 return; 4265 return;
4150 4266
4151 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
… …
4156 4272
4157 EV_FREQUENT_CHECK; 4273 EV_FREQUENT_CHECK;
4158} 4274}
4159 4275
4160void 4276void
4161ev_fork_stop (EV_P_ ev_fork *w) 4277ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4162{ 4278{
4163 clear_pending (EV_A_ (W)w); 4279 clear_pending (EV_A_ (W)w);
4164 if (expect_false (!ev_is_active (w))) 4280 if (expect_false (!ev_is_active (w)))
4165 return; 4281 return;
4166 4282
… …
4179} 4295}
4180#endif 4296#endif
4181 4297
4182#if EV_CLEANUP_ENABLE 4298#if EV_CLEANUP_ENABLE
4183void 4299void
4184ev_cleanup_start (EV_P_ ev_cleanup *w) 4300ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4185{ 4301{
4186 if (expect_false (ev_is_active (w))) 4302 if (expect_false (ev_is_active (w)))
4187 return; 4303 return;
4188 4304
4189 EV_FREQUENT_CHECK; 4305 EV_FREQUENT_CHECK;
… …
4196 ev_unref (EV_A); 4312 ev_unref (EV_A);
4197 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
4198} 4314}
4199 4315
4200void 4316void
4201ev_cleanup_stop (EV_P_ ev_cleanup *w) 4317ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4202{ 4318{
4203 clear_pending (EV_A_ (W)w); 4319 clear_pending (EV_A_ (W)w);
4204 if (expect_false (!ev_is_active (w))) 4320 if (expect_false (!ev_is_active (w)))
4205 return; 4321 return;
4206 4322
… …
4220} 4336}
4221#endif 4337#endif
4222 4338
4223#if EV_ASYNC_ENABLE 4339#if EV_ASYNC_ENABLE
4224void 4340void
4225ev_async_start (EV_P_ ev_async *w) 4341ev_async_start (EV_P_ ev_async *w) EV_THROW
4226{ 4342{
4227 if (expect_false (ev_is_active (w))) 4343 if (expect_false (ev_is_active (w)))
4228 return; 4344 return;
4229 4345
4230 w->sent = 0; 4346 w->sent = 0;
… …
4239 4355
4240 EV_FREQUENT_CHECK; 4356 EV_FREQUENT_CHECK;
4241} 4357}
4242 4358
4243void 4359void
4244ev_async_stop (EV_P_ ev_async *w) 4360ev_async_stop (EV_P_ ev_async *w) EV_THROW
4245{ 4361{
4246 clear_pending (EV_A_ (W)w); 4362 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w))) 4363 if (expect_false (!ev_is_active (w)))
4248 return; 4364 return;
4249 4365
… …
4260 4376
4261 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
4262} 4378}
4263 4379
4264void 4380void
4265ev_async_send (EV_P_ ev_async *w) 4381ev_async_send (EV_P_ ev_async *w) EV_THROW
4266{ 4382{
4267 w->sent = 1; 4383 w->sent = 1;
4268 evpipe_write (EV_A_ &async_pending); 4384 evpipe_write (EV_A_ &async_pending);
4269} 4385}
4270#endif 4386#endif
… …
4307 4423
4308 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));
4309} 4425}
4310 4426
4311void 4427void
4312ev_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
4313{ 4429{
4314 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));
4315 4431
4316 if (expect_false (!once)) 4432 if (expect_false (!once))
4317 { 4433 {
… …
4339 4455
4340/*****************************************************************************/ 4456/*****************************************************************************/
4341 4457
4342#if EV_WALK_ENABLE 4458#if EV_WALK_ENABLE
4343void ecb_cold 4459void ecb_cold
4344ev_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
4345{ 4461{
4346 int i, j; 4462 int i, j;
4347 ev_watcher_list *wl, *wn; 4463 ev_watcher_list *wl, *wn;
4348 4464
4349 if (types & (EV_IO | EV_EMBED)) 4465 if (types & (EV_IO | EV_EMBED))

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