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Comparing libev/ev.c (file contents):
Revision 1.414 by root, Sat Mar 24 19:38:51 2012 UTC vs.
Revision 1.458 by root, Sun Oct 27 16:26:07 2013 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
… …
356 357
357#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 360#endif
360 361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
376#endif
377
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* 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. */ 379/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 381# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
369# else 386# else
… …
372# endif 389# endif
373#endif 390#endif
374 391
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376 393
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
383#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
386#endif 397#endif
387 398
… …
395# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
396#endif 407#endif
397 408
398#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 411# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 412# include <sys/select.h>
402# endif 413# endif
403#endif 414#endif
404 415
405#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
… …
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 419/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
412# endif 423# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 424#endif
418 425
419#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 428# include <stdint.h>
… …
507 */ 514 */
508 515
509#ifndef ECB_H 516#ifndef ECB_H
510#define ECB_H 517#define ECB_H
511 518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003
521
512#ifdef _WIN32 522#ifdef _WIN32
513 typedef signed char int8_t; 523 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 524 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 525 typedef signed short int16_t;
516 typedef unsigned short uint16_t; 526 typedef unsigned short uint16_t;
… …
521 typedef unsigned long long uint64_t; 531 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 532 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 533 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 534 typedef unsigned __int64 uint64_t;
525 #endif 535 #endif
536 #ifdef _WIN64
537 #define ECB_PTRSIZE 8
538 typedef uint64_t uintptr_t;
539 typedef int64_t intptr_t;
540 #else
541 #define ECB_PTRSIZE 4
542 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t;
544 #endif
526#else 545#else
527 #include <inttypes.h> 546 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU
548 #define ECB_PTRSIZE 8
549 #else
550 #define ECB_PTRSIZE 4
551 #endif
552#endif
553
554/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64
556 #if _ILP32
557 #define ECB_AMD64_X32 1
558 #else
559 #define ECB_AMD64 1
560 #endif
528#endif 561#endif
529 562
530/* many compilers define _GNUC_ to some versions but then only implement 563/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 564 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 565 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 566 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 567 * 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. 568 * an issue with that they should have done it right in the first place.
536 */ 569 */
537#ifndef ECB_GCC_VERSION 570#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 572 #define ECB_GCC_VERSION(major,minor) 0
540 #else 573 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 575 #endif
543#endif 576#endif
544 577
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
579#define ECB_C99 (__STDC_VERSION__ >= 199901L)
580#define ECB_C11 (__STDC_VERSION__ >= 201112L)
581#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L)
583
584#if ECB_CPP
585 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END }
588#else
589 #define ECB_EXTERN_C extern
590 #define ECB_EXTERN_C_BEG
591 #define ECB_EXTERN_C_END
592#endif
593
545/*****************************************************************************/ 594/*****************************************************************************/
546 595
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 596/* 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 */ 597/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 598
550#if ECB_NO_THREADS 599#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 600 #define ECB_NO_SMP 1
552#endif 601#endif
553 602
554#if ECB_NO_THREADS || ECB_NO_SMP 603#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 604 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 605#endif
557 606
558#ifndef ECB_MEMORY_FENCE 607#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 609 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 610 #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 */ 611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 615 #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 */ 616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 620 || 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") 621 #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__ ) \ 622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 625 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 629 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 631 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
642 #elif defined __m68k__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
644 #elif defined __m88k__
645 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
646 #elif defined __sh__
647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 648 #endif
585 #endif 649 #endif
586#endif 650#endif
587 651
588#ifndef ECB_MEMORY_FENCE 652#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
656
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model.
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */
665
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 667 #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 */ 668 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 670 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 673 #elif defined _WIN32
599 #include <WinNT.h> 674 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 677 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 678 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
606 #elif __xlC__ 681 #elif __xlC__
607 #define ECB_MEMORY_FENCE __sync () 682 #define ECB_MEMORY_FENCE __sync ()
683 #endif
684#endif
685
686#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
608 #endif 698 #endif
609#endif 699#endif
610 700
611#ifndef ECB_MEMORY_FENCE 701#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 702 #if !ECB_AVOID_PTHREADS
… …
624 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 714 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) 715 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
626 #endif 716 #endif
627#endif 717#endif
628 718
629#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 719#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 720 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
631#endif 721#endif
632 722
633#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 725#endif
636 726
637/*****************************************************************************/ 727/*****************************************************************************/
638
639#define ECB_C99 (__STDC_VERSION__ >= 199901L)
640 728
641#if __cplusplus 729#if __cplusplus
642 #define ecb_inline static inline 730 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 731#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 732 #define ecb_inline static __inline__
… …
683#elif ECB_GCC_VERSION(3,0) 771#elif ECB_GCC_VERSION(3,0)
684 #define ecb_decltype(x) __typeof(x) 772 #define ecb_decltype(x) __typeof(x)
685#endif 773#endif
686 774
687#define ecb_noinline ecb_attribute ((__noinline__)) 775#define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__))
689#define ecb_unused ecb_attribute ((__unused__)) 776#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 777#define ecb_const ecb_attribute ((__const__))
691#define ecb_pure ecb_attribute ((__pure__)) 778#define ecb_pure ecb_attribute ((__pure__))
779
780#if ECB_C11
781 #define ecb_noreturn _Noreturn
782#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif
692 785
693#if ECB_GCC_VERSION(4,3) 786#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 787 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 788 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 789 #define ecb_cold ecb_attribute ((__cold__))
… …
787 880
788 return r + ecb_ld32 (x); 881 return r + ecb_ld32 (x);
789 } 882 }
790#endif 883#endif
791 884
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
794{ 892{
795 return ( (x * 0x0802U & 0x22110U) 893 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
880 ecb_inline void ecb_unreachable (void) ecb_noreturn; 978 ecb_inline void ecb_unreachable (void) ecb_noreturn;
881 ecb_inline void ecb_unreachable (void) { } 979 ecb_inline void ecb_unreachable (void) { }
882#endif 980#endif
883 981
884/* try to tell the compiler that some condition is definitely true */ 982/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886 984
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
888ecb_inline unsigned char 986ecb_inline unsigned char
889ecb_byteorder_helper (void) 987ecb_byteorder_helper (void)
890{ 988{
891 const uint32_t u = 0x11223344; 989 /* the union code still generates code under pressure in gcc, */
892 return *(unsigned char *)&u; 990 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
998 return 0x44;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1000 return 0x11;
1001#else
1002 union
1003 {
1004 uint32_t i;
1005 uint8_t c;
1006 } u = { 0x11223344 };
1007 return u.c;
1008#endif
893} 1009}
894 1010
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
896ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
928 } 1044 }
929#else 1045#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif 1047#endif
932 1048
1049/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051
1052/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \
1055 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \
1061 || defined __alpha__ \
1062 || defined __hppa__ \
1063 || defined __ia64__ \
1064 || defined __m68k__ \
1065 || defined __m88k__ \
1066 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1068 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */
1070#else
1071 #define ECB_STDFP 0
1072#endif
1073
1074#ifndef ECB_NO_LIBM
1075
1076 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1077
1078 #ifdef NEN
1079 #define ECB_NAN NAN
1080 #else
1081 #define ECB_NAN INFINITY
1082 #endif
1083
1084 /* converts an ieee half/binary16 to a float */
1085 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1086 ecb_function_ float
1087 ecb_binary16_to_float (uint16_t x)
1088 {
1089 int e = (x >> 10) & 0x1f;
1090 int m = x & 0x3ff;
1091 float r;
1092
1093 if (!e ) r = ldexpf (m , -24);
1094 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1095 else if (m ) r = ECB_NAN;
1096 else r = INFINITY;
1097
1098 return x & 0x8000 ? -r : r;
1099 }
1100
1101 /* convert a float to ieee single/binary32 */
1102 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1103 ecb_function_ uint32_t
1104 ecb_float_to_binary32 (float x)
1105 {
1106 uint32_t r;
1107
1108 #if ECB_STDFP
1109 memcpy (&r, &x, 4);
1110 #else
1111 /* slow emulation, works for anything but -0 */
1112 uint32_t m;
1113 int e;
1114
1115 if (x == 0e0f ) return 0x00000000U;
1116 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1117 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1118 if (x != x ) return 0x7fbfffffU;
1119
1120 m = frexpf (x, &e) * 0x1000000U;
1121
1122 r = m & 0x80000000U;
1123
1124 if (r)
1125 m = -m;
1126
1127 if (e <= -126)
1128 {
1129 m &= 0xffffffU;
1130 m >>= (-125 - e);
1131 e = -126;
1132 }
1133
1134 r |= (e + 126) << 23;
1135 r |= m & 0x7fffffU;
1136 #endif
1137
1138 return r;
1139 }
1140
1141 /* converts an ieee single/binary32 to a float */
1142 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1143 ecb_function_ float
1144 ecb_binary32_to_float (uint32_t x)
1145 {
1146 float r;
1147
1148 #if ECB_STDFP
1149 memcpy (&r, &x, 4);
1150 #else
1151 /* emulation, only works for normals and subnormals and +0 */
1152 int neg = x >> 31;
1153 int e = (x >> 23) & 0xffU;
1154
1155 x &= 0x7fffffU;
1156
1157 if (e)
1158 x |= 0x800000U;
1159 else
1160 e = 1;
1161
1162 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1163 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1164
1165 r = neg ? -r : r;
1166 #endif
1167
1168 return r;
1169 }
1170
1171 /* convert a double to ieee double/binary64 */
1172 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1173 ecb_function_ uint64_t
1174 ecb_double_to_binary64 (double x)
1175 {
1176 uint64_t r;
1177
1178 #if ECB_STDFP
1179 memcpy (&r, &x, 8);
1180 #else
1181 /* slow emulation, works for anything but -0 */
1182 uint64_t m;
1183 int e;
1184
1185 if (x == 0e0 ) return 0x0000000000000000U;
1186 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1187 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1188 if (x != x ) return 0X7ff7ffffffffffffU;
1189
1190 m = frexp (x, &e) * 0x20000000000000U;
1191
1192 r = m & 0x8000000000000000;;
1193
1194 if (r)
1195 m = -m;
1196
1197 if (e <= -1022)
1198 {
1199 m &= 0x1fffffffffffffU;
1200 m >>= (-1021 - e);
1201 e = -1022;
1202 }
1203
1204 r |= ((uint64_t)(e + 1022)) << 52;
1205 r |= m & 0xfffffffffffffU;
1206 #endif
1207
1208 return r;
1209 }
1210
1211 /* converts an ieee double/binary64 to a double */
1212 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1213 ecb_function_ double
1214 ecb_binary64_to_double (uint64_t x)
1215 {
1216 double r;
1217
1218 #if ECB_STDFP
1219 memcpy (&r, &x, 8);
1220 #else
1221 /* emulation, only works for normals and subnormals and +0 */
1222 int neg = x >> 63;
1223 int e = (x >> 52) & 0x7ffU;
1224
1225 x &= 0xfffffffffffffU;
1226
1227 if (e)
1228 x |= 0x10000000000000U;
1229 else
1230 e = 1;
1231
1232 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1233 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1234
1235 r = neg ? -r : r;
1236 #endif
1237
1238 return r;
1239 }
1240
1241#endif
1242
933#endif 1243#endif
934 1244
935/* ECB.H END */ 1245/* ECB.H END */
936 1246
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1247#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1103{ 1413{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1414 write (STDERR_FILENO, msg, strlen (msg));
1105} 1415}
1106#endif 1416#endif
1107 1417
1108static void (*syserr_cb)(const char *msg); 1418static void (*syserr_cb)(const char *msg) EV_THROW;
1109 1419
1110void ecb_cold 1420void ecb_cold
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1421ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112{ 1422{
1113 syserr_cb = cb; 1423 syserr_cb = cb;
1114} 1424}
1115 1425
1116static void noinline ecb_cold 1426static void noinline ecb_cold
… …
1134 abort (); 1444 abort ();
1135 } 1445 }
1136} 1446}
1137 1447
1138static void * 1448static void *
1139ev_realloc_emul (void *ptr, long size) 1449ev_realloc_emul (void *ptr, long size) EV_THROW
1140{ 1450{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1451 /* some systems, notably openbsd and darwin, fail to properly
1145 * implement realloc (x, 0) (as required by both ansi c-89 and 1452 * implement realloc (x, 0) (as required by both ansi c-89 and
1146 * the single unix specification, so work around them here. 1453 * the single unix specification, so work around them here.
1454 * recently, also (at least) fedora and debian started breaking it,
1455 * despite documenting it otherwise.
1147 */ 1456 */
1148 1457
1149 if (size) 1458 if (size)
1150 return realloc (ptr, size); 1459 return realloc (ptr, size);
1151 1460
1152 free (ptr); 1461 free (ptr);
1153 return 0; 1462 return 0;
1154#endif
1155} 1463}
1156 1464
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1465static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158 1466
1159void ecb_cold 1467void ecb_cold
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1468ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161{ 1469{
1162 alloc = cb; 1470 alloc = cb;
1163} 1471}
1164 1472
1165inline_speed void * 1473inline_speed void *
… …
1282 1590
1283/*****************************************************************************/ 1591/*****************************************************************************/
1284 1592
1285#ifndef EV_HAVE_EV_TIME 1593#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 1594ev_tstamp
1287ev_time (void) 1595ev_time (void) EV_THROW
1288{ 1596{
1289#if EV_USE_REALTIME 1597#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 1598 if (expect_true (have_realtime))
1291 { 1599 {
1292 struct timespec ts; 1600 struct timespec ts;
… …
1316 return ev_time (); 1624 return ev_time ();
1317} 1625}
1318 1626
1319#if EV_MULTIPLICITY 1627#if EV_MULTIPLICITY
1320ev_tstamp 1628ev_tstamp
1321ev_now (EV_P) 1629ev_now (EV_P) EV_THROW
1322{ 1630{
1323 return ev_rt_now; 1631 return ev_rt_now;
1324} 1632}
1325#endif 1633#endif
1326 1634
1327void 1635void
1328ev_sleep (ev_tstamp delay) 1636ev_sleep (ev_tstamp delay) EV_THROW
1329{ 1637{
1330 if (delay > 0.) 1638 if (delay > 0.)
1331 { 1639 {
1332#if EV_USE_NANOSLEEP 1640#if EV_USE_NANOSLEEP
1333 struct timespec ts; 1641 struct timespec ts;
1334 1642
1335 EV_TS_SET (ts, delay); 1643 EV_TS_SET (ts, delay);
1336 nanosleep (&ts, 0); 1644 nanosleep (&ts, 0);
1337#elif defined(_WIN32) 1645#elif defined _WIN32
1338 Sleep ((unsigned long)(delay * 1e3)); 1646 Sleep ((unsigned long)(delay * 1e3));
1339#else 1647#else
1340 struct timeval tv; 1648 struct timeval tv;
1341 1649
1342 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1650 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1414pendingcb (EV_P_ ev_prepare *w, int revents) 1722pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 1723{
1416} 1724}
1417 1725
1418void noinline 1726void noinline
1419ev_feed_event (EV_P_ void *w, int revents) 1727ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420{ 1728{
1421 W w_ = (W)w; 1729 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 1730 int pri = ABSPRI (w_);
1423 1731
1424 if (expect_false (w_->pending)) 1732 if (expect_false (w_->pending))
… …
1428 w_->pending = ++pendingcnt [pri]; 1736 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430 pendings [pri][w_->pending - 1].w = w_; 1738 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 1739 pendings [pri][w_->pending - 1].events = revents;
1432 } 1740 }
1741
1742 pendingpri = NUMPRI - 1;
1433} 1743}
1434 1744
1435inline_speed void 1745inline_speed void
1436feed_reverse (EV_P_ W w) 1746feed_reverse (EV_P_ W w)
1437{ 1747{
… …
1483 if (expect_true (!anfd->reify)) 1793 if (expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 1794 fd_event_nocheck (EV_A_ fd, revents);
1485} 1795}
1486 1796
1487void 1797void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 1798ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489{ 1799{
1490 if (fd >= 0 && fd < anfdmax) 1800 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 1801 fd_event_nocheck (EV_A_ fd, revents);
1492} 1802}
1493 1803
… …
1812static void noinline ecb_cold 2122static void noinline ecb_cold
1813evpipe_init (EV_P) 2123evpipe_init (EV_P)
1814{ 2124{
1815 if (!ev_is_active (&pipe_w)) 2125 if (!ev_is_active (&pipe_w))
1816 { 2126 {
2127 int fds [2];
2128
1817# if EV_USE_EVENTFD 2129# if EV_USE_EVENTFD
2130 fds [0] = -1;
1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2131 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819 if (evfd < 0 && errno == EINVAL) 2132 if (fds [1] < 0 && errno == EINVAL)
1820 evfd = eventfd (0, 0); 2133 fds [1] = eventfd (0, 0);
1821 2134
1822 if (evfd >= 0) 2135 if (fds [1] < 0)
2136# endif
1823 { 2137 {
2138 while (pipe (fds))
2139 ev_syserr ("(libev) error creating signal/async pipe");
2140
2141 fd_intern (fds [0]);
2142 }
2143
1824 evpipe [0] = -1; 2144 evpipe [0] = fds [0];
1825 fd_intern (evfd); /* doing it twice doesn't hurt */ 2145
1826 ev_io_set (&pipe_w, evfd, EV_READ); 2146 if (evpipe [1] < 0)
2147 evpipe [1] = fds [1]; /* first call, set write fd */
2148 else
2149 {
2150 /* on subsequent calls, do not change evpipe [1] */
2151 /* so that evpipe_write can always rely on its value. */
2152 /* this branch does not do anything sensible on windows, */
2153 /* so must not be executed on windows */
2154
2155 dup2 (fds [1], evpipe [1]);
2156 close (fds [1]);
2157 }
2158
2159 fd_intern (evpipe [1]);
2160
2161 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2162 ev_io_start (EV_A_ &pipe_w);
2163 ev_unref (EV_A); /* watcher should not keep loop alive */
2164 }
2165}
2166
2167inline_speed void
2168evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2169{
2170 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2171
2172 if (expect_true (*flag))
2173 return;
2174
2175 *flag = 1;
2176 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2177
2178 pipe_write_skipped = 1;
2179
2180 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2181
2182 if (pipe_write_wanted)
2183 {
2184 int old_errno;
2185
2186 pipe_write_skipped = 0;
2187 ECB_MEMORY_FENCE_RELEASE;
2188
2189 old_errno = errno; /* save errno because write will clobber it */
2190
2191#if EV_USE_EVENTFD
2192 if (evpipe [0] < 0)
2193 {
2194 uint64_t counter = 1;
2195 write (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2196 }
1828 else 2197 else
1829# endif 2198#endif
1830 { 2199 {
1831 while (pipe (evpipe)) 2200#ifdef _WIN32
1832 ev_syserr ("(libev) error creating signal/async pipe"); 2201 WSABUF buf;
1833 2202 DWORD sent;
1834 fd_intern (evpipe [0]); 2203 buf.buf = &buf;
1835 fd_intern (evpipe [1]); 2204 buf.len = 1;
1836 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2205 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837 } 2206#else
1838
1839 ev_io_start (EV_A_ &pipe_w);
1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1841 }
1842}
1843
1844inline_speed void
1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1846{
1847 if (expect_true (*flag))
1848 return;
1849
1850 *flag = 1;
1851
1852 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1853
1854 pipe_write_skipped = 1;
1855
1856 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1857
1858 if (pipe_write_wanted)
1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1864 old_errno = errno; /* save errno because write will clobber it */
1865
1866#if EV_USE_EVENTFD
1867 if (evfd >= 0)
1868 {
1869 uint64_t counter = 1;
1870 write (evfd, &counter, sizeof (uint64_t));
1871 }
1872 else
1873#endif
1874 {
1875 /* win32 people keep sending patches that change this write() to send() */
1876 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1877 /* so when you think this write should be a send instead, please find out */
1878 /* where your send() is from - it's definitely not the microsoft send, and */
1879 /* tell me. thank you. */
1880 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1881 /* check the ev documentation on how to use this flag */
1882 write (evpipe [1], &(evpipe [1]), 1); 2207 write (evpipe [1], &(evpipe [1]), 1);
2208#endif
1883 } 2209 }
1884 2210
1885 errno = old_errno; 2211 errno = old_errno;
1886 } 2212 }
1887} 2213}
… …
1894 int i; 2220 int i;
1895 2221
1896 if (revents & EV_READ) 2222 if (revents & EV_READ)
1897 { 2223 {
1898#if EV_USE_EVENTFD 2224#if EV_USE_EVENTFD
1899 if (evfd >= 0) 2225 if (evpipe [0] < 0)
1900 { 2226 {
1901 uint64_t counter; 2227 uint64_t counter;
1902 read (evfd, &counter, sizeof (uint64_t)); 2228 read (evpipe [1], &counter, sizeof (uint64_t));
1903 } 2229 }
1904 else 2230 else
1905#endif 2231#endif
1906 { 2232 {
1907 char dummy; 2233 char dummy[4];
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2234#ifdef _WIN32
2235 WSABUF buf;
2236 DWORD recvd;
2237 DWORD flags = 0;
2238 buf.buf = dummy;
2239 buf.len = sizeof (dummy);
2240 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2241#else
1909 read (evpipe [0], &dummy, 1); 2242 read (evpipe [0], &dummy, sizeof (dummy));
2243#endif
1910 } 2244 }
1911 } 2245 }
1912 2246
1913 pipe_write_skipped = 0; 2247 pipe_write_skipped = 0;
2248
2249 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 2250
1915#if EV_SIGNAL_ENABLE 2251#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 2252 if (sig_pending)
1917 { 2253 {
1918 sig_pending = 0; 2254 sig_pending = 0;
2255
2256 ECB_MEMORY_FENCE;
1919 2257
1920 for (i = EV_NSIG - 1; i--; ) 2258 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 2259 if (expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 2260 ev_feed_signal_event (EV_A_ i + 1);
1923 } 2261 }
… …
1925 2263
1926#if EV_ASYNC_ENABLE 2264#if EV_ASYNC_ENABLE
1927 if (async_pending) 2265 if (async_pending)
1928 { 2266 {
1929 async_pending = 0; 2267 async_pending = 0;
2268
2269 ECB_MEMORY_FENCE;
1930 2270
1931 for (i = asynccnt; i--; ) 2271 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2272 if (asyncs [i]->sent)
1933 { 2273 {
1934 asyncs [i]->sent = 0; 2274 asyncs [i]->sent = 0;
2275 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2276 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2277 }
1937 } 2278 }
1938#endif 2279#endif
1939} 2280}
1940 2281
1941/*****************************************************************************/ 2282/*****************************************************************************/
1942 2283
1943void 2284void
1944ev_feed_signal (int signum) 2285ev_feed_signal (int signum) EV_THROW
1945{ 2286{
1946#if EV_MULTIPLICITY 2287#if EV_MULTIPLICITY
2288 EV_P;
2289 ECB_MEMORY_FENCE_ACQUIRE;
1947 EV_P = signals [signum - 1].loop; 2290 EV_A = signals [signum - 1].loop;
1948 2291
1949 if (!EV_A) 2292 if (!EV_A)
1950 return; 2293 return;
1951#endif 2294#endif
1952 2295
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1; 2296 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending); 2297 evpipe_write (EV_A_ &sig_pending);
1958} 2298}
1959 2299
1960static void 2300static void
… …
1966 2306
1967 ev_feed_signal (signum); 2307 ev_feed_signal (signum);
1968} 2308}
1969 2309
1970void noinline 2310void noinline
1971ev_feed_signal_event (EV_P_ int signum) 2311ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972{ 2312{
1973 WL w; 2313 WL w;
1974 2314
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2315 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2316 return;
1977 2317
1978 --signum; 2318 --signum;
1979 2319
1980#if EV_MULTIPLICITY 2320#if EV_MULTIPLICITY
… …
1984 if (expect_false (signals [signum].loop != EV_A)) 2324 if (expect_false (signals [signum].loop != EV_A))
1985 return; 2325 return;
1986#endif 2326#endif
1987 2327
1988 signals [signum].pending = 0; 2328 signals [signum].pending = 0;
2329 ECB_MEMORY_FENCE_RELEASE;
1989 2330
1990 for (w = signals [signum].head; w; w = w->next) 2331 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2332 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2333}
1993 2334
… …
2092#if EV_USE_SELECT 2433#if EV_USE_SELECT
2093# include "ev_select.c" 2434# include "ev_select.c"
2094#endif 2435#endif
2095 2436
2096int ecb_cold 2437int ecb_cold
2097ev_version_major (void) 2438ev_version_major (void) EV_THROW
2098{ 2439{
2099 return EV_VERSION_MAJOR; 2440 return EV_VERSION_MAJOR;
2100} 2441}
2101 2442
2102int ecb_cold 2443int ecb_cold
2103ev_version_minor (void) 2444ev_version_minor (void) EV_THROW
2104{ 2445{
2105 return EV_VERSION_MINOR; 2446 return EV_VERSION_MINOR;
2106} 2447}
2107 2448
2108/* return true if we are running with elevated privileges and should ignore env variables */ 2449/* return true if we are running with elevated privileges and should ignore env variables */
… …
2116 || getgid () != getegid (); 2457 || getgid () != getegid ();
2117#endif 2458#endif
2118} 2459}
2119 2460
2120unsigned int ecb_cold 2461unsigned int ecb_cold
2121ev_supported_backends (void) 2462ev_supported_backends (void) EV_THROW
2122{ 2463{
2123 unsigned int flags = 0; 2464 unsigned int flags = 0;
2124 2465
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2466 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2467 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2130 2471
2131 return flags; 2472 return flags;
2132} 2473}
2133 2474
2134unsigned int ecb_cold 2475unsigned int ecb_cold
2135ev_recommended_backends (void) 2476ev_recommended_backends (void) EV_THROW
2136{ 2477{
2137 unsigned int flags = ev_supported_backends (); 2478 unsigned int flags = ev_supported_backends ();
2138 2479
2139#ifndef __NetBSD__ 2480#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 2481 /* kqueue is borked on everything but netbsd apparently */
… …
2152 2493
2153 return flags; 2494 return flags;
2154} 2495}
2155 2496
2156unsigned int ecb_cold 2497unsigned int ecb_cold
2157ev_embeddable_backends (void) 2498ev_embeddable_backends (void) EV_THROW
2158{ 2499{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2500 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 2501
2161 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2502 /* 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 */ 2503 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2164 2505
2165 return flags; 2506 return flags;
2166} 2507}
2167 2508
2168unsigned int 2509unsigned int
2169ev_backend (EV_P) 2510ev_backend (EV_P) EV_THROW
2170{ 2511{
2171 return backend; 2512 return backend;
2172} 2513}
2173 2514
2174#if EV_FEATURE_API 2515#if EV_FEATURE_API
2175unsigned int 2516unsigned int
2176ev_iteration (EV_P) 2517ev_iteration (EV_P) EV_THROW
2177{ 2518{
2178 return loop_count; 2519 return loop_count;
2179} 2520}
2180 2521
2181unsigned int 2522unsigned int
2182ev_depth (EV_P) 2523ev_depth (EV_P) EV_THROW
2183{ 2524{
2184 return loop_depth; 2525 return loop_depth;
2185} 2526}
2186 2527
2187void 2528void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2529ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2530{
2190 io_blocktime = interval; 2531 io_blocktime = interval;
2191} 2532}
2192 2533
2193void 2534void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2535ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195{ 2536{
2196 timeout_blocktime = interval; 2537 timeout_blocktime = interval;
2197} 2538}
2198 2539
2199void 2540void
2200ev_set_userdata (EV_P_ void *data) 2541ev_set_userdata (EV_P_ void *data) EV_THROW
2201{ 2542{
2202 userdata = data; 2543 userdata = data;
2203} 2544}
2204 2545
2205void * 2546void *
2206ev_userdata (EV_P) 2547ev_userdata (EV_P) EV_THROW
2207{ 2548{
2208 return userdata; 2549 return userdata;
2209} 2550}
2210 2551
2211void 2552void
2212ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2553ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2213{ 2554{
2214 invoke_cb = invoke_pending_cb; 2555 invoke_cb = invoke_pending_cb;
2215} 2556}
2216 2557
2217void 2558void
2218ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2559ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2219{ 2560{
2220 release_cb = release; 2561 release_cb = release;
2221 acquire_cb = acquire; 2562 acquire_cb = acquire;
2222} 2563}
2223#endif 2564#endif
2224 2565
2225/* initialise a loop structure, must be zero-initialised */ 2566/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 2567static void noinline ecb_cold
2227loop_init (EV_P_ unsigned int flags) 2568loop_init (EV_P_ unsigned int flags) EV_THROW
2228{ 2569{
2229 if (!backend) 2570 if (!backend)
2230 { 2571 {
2231 origflags = flags; 2572 origflags = flags;
2232 2573
… …
2277#if EV_ASYNC_ENABLE 2618#if EV_ASYNC_ENABLE
2278 async_pending = 0; 2619 async_pending = 0;
2279#endif 2620#endif
2280 pipe_write_skipped = 0; 2621 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0; 2622 pipe_write_wanted = 0;
2623 evpipe [0] = -1;
2624 evpipe [1] = -1;
2282#if EV_USE_INOTIFY 2625#if EV_USE_INOTIFY
2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2626 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284#endif 2627#endif
2285#if EV_USE_SIGNALFD 2628#if EV_USE_SIGNALFD
2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2629 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2337 EV_INVOKE_PENDING; 2680 EV_INVOKE_PENDING;
2338 } 2681 }
2339#endif 2682#endif
2340 2683
2341#if EV_CHILD_ENABLE 2684#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 2685 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 2686 {
2344 ev_ref (EV_A); /* child watcher */ 2687 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 2688 ev_signal_stop (EV_A_ &childev);
2346 } 2689 }
2347#endif 2690#endif
… …
2349 if (ev_is_active (&pipe_w)) 2692 if (ev_is_active (&pipe_w))
2350 { 2693 {
2351 /*ev_ref (EV_A);*/ 2694 /*ev_ref (EV_A);*/
2352 /*ev_io_stop (EV_A_ &pipe_w);*/ 2695 /*ev_io_stop (EV_A_ &pipe_w);*/
2353 2696
2354#if EV_USE_EVENTFD
2355 if (evfd >= 0)
2356 close (evfd);
2357#endif
2358
2359 if (evpipe [0] >= 0)
2360 {
2361 EV_WIN32_CLOSE_FD (evpipe [0]); 2697 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362 EV_WIN32_CLOSE_FD (evpipe [1]); 2698 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363 }
2364 } 2699 }
2365 2700
2366#if EV_USE_SIGNALFD 2701#if EV_USE_SIGNALFD
2367 if (ev_is_active (&sigfd_w)) 2702 if (ev_is_active (&sigfd_w))
2368 close (sigfd); 2703 close (sigfd);
… …
2454#endif 2789#endif
2455#if EV_USE_INOTIFY 2790#if EV_USE_INOTIFY
2456 infy_fork (EV_A); 2791 infy_fork (EV_A);
2457#endif 2792#endif
2458 2793
2794#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459 if (ev_is_active (&pipe_w)) 2795 if (ev_is_active (&pipe_w))
2460 { 2796 {
2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2797 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2462 2798
2463 ev_ref (EV_A); 2799 ev_ref (EV_A);
2464 ev_io_stop (EV_A_ &pipe_w); 2800 ev_io_stop (EV_A_ &pipe_w);
2465 2801
2466#if EV_USE_EVENTFD
2467 if (evfd >= 0)
2468 close (evfd);
2469#endif
2470
2471 if (evpipe [0] >= 0) 2802 if (evpipe [0] >= 0)
2472 {
2473 EV_WIN32_CLOSE_FD (evpipe [0]); 2803 EV_WIN32_CLOSE_FD (evpipe [0]);
2474 EV_WIN32_CLOSE_FD (evpipe [1]);
2475 }
2476 2804
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A); 2805 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */ 2806 /* iterate over everything, in case we missed something before */
2480 pipecb (EV_A_ &pipe_w, EV_READ); 2807 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481#endif
2482 } 2808 }
2809#endif
2483 2810
2484 postfork = 0; 2811 postfork = 0;
2485} 2812}
2486 2813
2487#if EV_MULTIPLICITY 2814#if EV_MULTIPLICITY
2488 2815
2489struct ev_loop * ecb_cold 2816struct ev_loop * ecb_cold
2490ev_loop_new (unsigned int flags) 2817ev_loop_new (unsigned int flags) EV_THROW
2491{ 2818{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2819 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 2820
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 2821 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 2822 loop_init (EV_A_ flags);
… …
2539} 2866}
2540#endif 2867#endif
2541 2868
2542#if EV_FEATURE_API 2869#if EV_FEATURE_API
2543void ecb_cold 2870void ecb_cold
2544ev_verify (EV_P) 2871ev_verify (EV_P) EV_THROW
2545{ 2872{
2546#if EV_VERIFY 2873#if EV_VERIFY
2547 int i; 2874 int i;
2548 WL w; 2875 WL w, w2;
2549 2876
2550 assert (activecnt >= -1); 2877 assert (activecnt >= -1);
2551 2878
2552 assert (fdchangemax >= fdchangecnt); 2879 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 2880 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2881 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 2882
2556 assert (anfdmax >= 0); 2883 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 2884 for (i = 0; i < anfdmax; ++i)
2885 {
2886 int j = 0;
2887
2558 for (w = anfds [i].head; w; w = w->next) 2888 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 2889 {
2560 verify_watcher (EV_A_ (W)w); 2890 verify_watcher (EV_A_ (W)w);
2891
2892 if (j++ & 1)
2893 {
2894 assert (("libev: io watcher list contains a loop", w != w2));
2895 w2 = w2->next;
2896 }
2897
2561 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2898 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)); 2899 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2563 } 2900 }
2901 }
2564 2902
2565 assert (timermax >= timercnt); 2903 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 2904 verify_heap (EV_A_ timers, timercnt);
2567 2905
2568#if EV_PERIODIC_ENABLE 2906#if EV_PERIODIC_ENABLE
… …
2618#if EV_MULTIPLICITY 2956#if EV_MULTIPLICITY
2619struct ev_loop * ecb_cold 2957struct ev_loop * ecb_cold
2620#else 2958#else
2621int 2959int
2622#endif 2960#endif
2623ev_default_loop (unsigned int flags) 2961ev_default_loop (unsigned int flags) EV_THROW
2624{ 2962{
2625 if (!ev_default_loop_ptr) 2963 if (!ev_default_loop_ptr)
2626 { 2964 {
2627#if EV_MULTIPLICITY 2965#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 2966 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2647 2985
2648 return ev_default_loop_ptr; 2986 return ev_default_loop_ptr;
2649} 2987}
2650 2988
2651void 2989void
2652ev_loop_fork (EV_P) 2990ev_loop_fork (EV_P) EV_THROW
2653{ 2991{
2654 postfork = 1; /* must be in line with ev_default_fork */ 2992 postfork = 1;
2655} 2993}
2656 2994
2657/*****************************************************************************/ 2995/*****************************************************************************/
2658 2996
2659void 2997void
… …
2661{ 2999{
2662 EV_CB_INVOKE ((W)w, revents); 3000 EV_CB_INVOKE ((W)w, revents);
2663} 3001}
2664 3002
2665unsigned int 3003unsigned int
2666ev_pending_count (EV_P) 3004ev_pending_count (EV_P) EV_THROW
2667{ 3005{
2668 int pri; 3006 int pri;
2669 unsigned int count = 0; 3007 unsigned int count = 0;
2670 3008
2671 for (pri = NUMPRI; pri--; ) 3009 for (pri = NUMPRI; pri--; )
… …
2675} 3013}
2676 3014
2677void noinline 3015void noinline
2678ev_invoke_pending (EV_P) 3016ev_invoke_pending (EV_P)
2679{ 3017{
2680 int pri; 3018 pendingpri = NUMPRI;
2681 3019
2682 for (pri = NUMPRI; pri--; ) 3020 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3021 {
3022 --pendingpri;
3023
2683 while (pendingcnt [pri]) 3024 while (pendingcnt [pendingpri])
2684 { 3025 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3026 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 3027
2687 p->w->pending = 0; 3028 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 3029 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 3030 EV_FREQUENT_CHECK;
2690 } 3031 }
3032 }
2691} 3033}
2692 3034
2693#if EV_IDLE_ENABLE 3035#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 3036/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 3037/* only when higher priorities are idle" logic */
… …
2785{ 3127{
2786 EV_FREQUENT_CHECK; 3128 EV_FREQUENT_CHECK;
2787 3129
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3130 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 3131 {
2790 int feed_count = 0;
2791
2792 do 3132 do
2793 { 3133 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3134 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 3135
2796 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3136 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2930 3270
2931 mn_now = ev_rt_now; 3271 mn_now = ev_rt_now;
2932 } 3272 }
2933} 3273}
2934 3274
2935void 3275int
2936ev_run (EV_P_ int flags) 3276ev_run (EV_P_ int flags)
2937{ 3277{
2938#if EV_FEATURE_API 3278#if EV_FEATURE_API
2939 ++loop_depth; 3279 ++loop_depth;
2940#endif 3280#endif
… …
3055 backend_poll (EV_A_ waittime); 3395 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3396 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 3397
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3398 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 3399
3400 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 3401 if (pipe_write_skipped)
3061 { 3402 {
3062 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3403 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); 3404 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 3405 }
… …
3097 loop_done = EVBREAK_CANCEL; 3438 loop_done = EVBREAK_CANCEL;
3098 3439
3099#if EV_FEATURE_API 3440#if EV_FEATURE_API
3100 --loop_depth; 3441 --loop_depth;
3101#endif 3442#endif
3443
3444 return activecnt;
3102} 3445}
3103 3446
3104void 3447void
3105ev_break (EV_P_ int how) 3448ev_break (EV_P_ int how) EV_THROW
3106{ 3449{
3107 loop_done = how; 3450 loop_done = how;
3108} 3451}
3109 3452
3110void 3453void
3111ev_ref (EV_P) 3454ev_ref (EV_P) EV_THROW
3112{ 3455{
3113 ++activecnt; 3456 ++activecnt;
3114} 3457}
3115 3458
3116void 3459void
3117ev_unref (EV_P) 3460ev_unref (EV_P) EV_THROW
3118{ 3461{
3119 --activecnt; 3462 --activecnt;
3120} 3463}
3121 3464
3122void 3465void
3123ev_now_update (EV_P) 3466ev_now_update (EV_P) EV_THROW
3124{ 3467{
3125 time_update (EV_A_ 1e100); 3468 time_update (EV_A_ 1e100);
3126} 3469}
3127 3470
3128void 3471void
3129ev_suspend (EV_P) 3472ev_suspend (EV_P) EV_THROW
3130{ 3473{
3131 ev_now_update (EV_A); 3474 ev_now_update (EV_A);
3132} 3475}
3133 3476
3134void 3477void
3135ev_resume (EV_P) 3478ev_resume (EV_P) EV_THROW
3136{ 3479{
3137 ev_tstamp mn_prev = mn_now; 3480 ev_tstamp mn_prev = mn_now;
3138 3481
3139 ev_now_update (EV_A); 3482 ev_now_update (EV_A);
3140 timers_reschedule (EV_A_ mn_now - mn_prev); 3483 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3179 w->pending = 0; 3522 w->pending = 0;
3180 } 3523 }
3181} 3524}
3182 3525
3183int 3526int
3184ev_clear_pending (EV_P_ void *w) 3527ev_clear_pending (EV_P_ void *w) EV_THROW
3185{ 3528{
3186 W w_ = (W)w; 3529 W w_ = (W)w;
3187 int pending = w_->pending; 3530 int pending = w_->pending;
3188 3531
3189 if (expect_true (pending)) 3532 if (expect_true (pending))
… …
3222} 3565}
3223 3566
3224/*****************************************************************************/ 3567/*****************************************************************************/
3225 3568
3226void noinline 3569void noinline
3227ev_io_start (EV_P_ ev_io *w) 3570ev_io_start (EV_P_ ev_io *w) EV_THROW
3228{ 3571{
3229 int fd = w->fd; 3572 int fd = w->fd;
3230 3573
3231 if (expect_false (ev_is_active (w))) 3574 if (expect_false (ev_is_active (w)))
3232 return; 3575 return;
… …
3238 3581
3239 ev_start (EV_A_ (W)w, 1); 3582 ev_start (EV_A_ (W)w, 1);
3240 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3583 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3241 wlist_add (&anfds[fd].head, (WL)w); 3584 wlist_add (&anfds[fd].head, (WL)w);
3242 3585
3586 /* common bug, apparently */
3587 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3588
3243 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3589 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3244 w->events &= ~EV__IOFDSET; 3590 w->events &= ~EV__IOFDSET;
3245 3591
3246 EV_FREQUENT_CHECK; 3592 EV_FREQUENT_CHECK;
3247} 3593}
3248 3594
3249void noinline 3595void noinline
3250ev_io_stop (EV_P_ ev_io *w) 3596ev_io_stop (EV_P_ ev_io *w) EV_THROW
3251{ 3597{
3252 clear_pending (EV_A_ (W)w); 3598 clear_pending (EV_A_ (W)w);
3253 if (expect_false (!ev_is_active (w))) 3599 if (expect_false (!ev_is_active (w)))
3254 return; 3600 return;
3255 3601
… …
3264 3610
3265 EV_FREQUENT_CHECK; 3611 EV_FREQUENT_CHECK;
3266} 3612}
3267 3613
3268void noinline 3614void noinline
3269ev_timer_start (EV_P_ ev_timer *w) 3615ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3270{ 3616{
3271 if (expect_false (ev_is_active (w))) 3617 if (expect_false (ev_is_active (w)))
3272 return; 3618 return;
3273 3619
3274 ev_at (w) += mn_now; 3620 ev_at (w) += mn_now;
… …
3288 3634
3289 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3635 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3290} 3636}
3291 3637
3292void noinline 3638void noinline
3293ev_timer_stop (EV_P_ ev_timer *w) 3639ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3294{ 3640{
3295 clear_pending (EV_A_ (W)w); 3641 clear_pending (EV_A_ (W)w);
3296 if (expect_false (!ev_is_active (w))) 3642 if (expect_false (!ev_is_active (w)))
3297 return; 3643 return;
3298 3644
… …
3318 3664
3319 EV_FREQUENT_CHECK; 3665 EV_FREQUENT_CHECK;
3320} 3666}
3321 3667
3322void noinline 3668void noinline
3323ev_timer_again (EV_P_ ev_timer *w) 3669ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3324{ 3670{
3325 EV_FREQUENT_CHECK; 3671 EV_FREQUENT_CHECK;
3326 3672
3327 clear_pending (EV_A_ (W)w); 3673 clear_pending (EV_A_ (W)w);
3328 3674
… …
3345 3691
3346 EV_FREQUENT_CHECK; 3692 EV_FREQUENT_CHECK;
3347} 3693}
3348 3694
3349ev_tstamp 3695ev_tstamp
3350ev_timer_remaining (EV_P_ ev_timer *w) 3696ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3351{ 3697{
3352 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3698 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3353} 3699}
3354 3700
3355#if EV_PERIODIC_ENABLE 3701#if EV_PERIODIC_ENABLE
3356void noinline 3702void noinline
3357ev_periodic_start (EV_P_ ev_periodic *w) 3703ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3358{ 3704{
3359 if (expect_false (ev_is_active (w))) 3705 if (expect_false (ev_is_active (w)))
3360 return; 3706 return;
3361 3707
3362 if (w->reschedule_cb) 3708 if (w->reschedule_cb)
… …
3382 3728
3383 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3729 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3384} 3730}
3385 3731
3386void noinline 3732void noinline
3387ev_periodic_stop (EV_P_ ev_periodic *w) 3733ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3388{ 3734{
3389 clear_pending (EV_A_ (W)w); 3735 clear_pending (EV_A_ (W)w);
3390 if (expect_false (!ev_is_active (w))) 3736 if (expect_false (!ev_is_active (w)))
3391 return; 3737 return;
3392 3738
… …
3410 3756
3411 EV_FREQUENT_CHECK; 3757 EV_FREQUENT_CHECK;
3412} 3758}
3413 3759
3414void noinline 3760void noinline
3415ev_periodic_again (EV_P_ ev_periodic *w) 3761ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3416{ 3762{
3417 /* TODO: use adjustheap and recalculation */ 3763 /* TODO: use adjustheap and recalculation */
3418 ev_periodic_stop (EV_A_ w); 3764 ev_periodic_stop (EV_A_ w);
3419 ev_periodic_start (EV_A_ w); 3765 ev_periodic_start (EV_A_ w);
3420} 3766}
… …
3425#endif 3771#endif
3426 3772
3427#if EV_SIGNAL_ENABLE 3773#if EV_SIGNAL_ENABLE
3428 3774
3429void noinline 3775void noinline
3430ev_signal_start (EV_P_ ev_signal *w) 3776ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3431{ 3777{
3432 if (expect_false (ev_is_active (w))) 3778 if (expect_false (ev_is_active (w)))
3433 return; 3779 return;
3434 3780
3435 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3781 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3437#if EV_MULTIPLICITY 3783#if EV_MULTIPLICITY
3438 assert (("libev: a signal must not be attached to two different loops", 3784 assert (("libev: a signal must not be attached to two different loops",
3439 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3785 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3440 3786
3441 signals [w->signum - 1].loop = EV_A; 3787 signals [w->signum - 1].loop = EV_A;
3788 ECB_MEMORY_FENCE_RELEASE;
3442#endif 3789#endif
3443 3790
3444 EV_FREQUENT_CHECK; 3791 EV_FREQUENT_CHECK;
3445 3792
3446#if EV_USE_SIGNALFD 3793#if EV_USE_SIGNALFD
… …
3506 3853
3507 EV_FREQUENT_CHECK; 3854 EV_FREQUENT_CHECK;
3508} 3855}
3509 3856
3510void noinline 3857void noinline
3511ev_signal_stop (EV_P_ ev_signal *w) 3858ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3512{ 3859{
3513 clear_pending (EV_A_ (W)w); 3860 clear_pending (EV_A_ (W)w);
3514 if (expect_false (!ev_is_active (w))) 3861 if (expect_false (!ev_is_active (w)))
3515 return; 3862 return;
3516 3863
… …
3547#endif 3894#endif
3548 3895
3549#if EV_CHILD_ENABLE 3896#if EV_CHILD_ENABLE
3550 3897
3551void 3898void
3552ev_child_start (EV_P_ ev_child *w) 3899ev_child_start (EV_P_ ev_child *w) EV_THROW
3553{ 3900{
3554#if EV_MULTIPLICITY 3901#if EV_MULTIPLICITY
3555 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3902 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3556#endif 3903#endif
3557 if (expect_false (ev_is_active (w))) 3904 if (expect_false (ev_is_active (w)))
… …
3564 3911
3565 EV_FREQUENT_CHECK; 3912 EV_FREQUENT_CHECK;
3566} 3913}
3567 3914
3568void 3915void
3569ev_child_stop (EV_P_ ev_child *w) 3916ev_child_stop (EV_P_ ev_child *w) EV_THROW
3570{ 3917{
3571 clear_pending (EV_A_ (W)w); 3918 clear_pending (EV_A_ (W)w);
3572 if (expect_false (!ev_is_active (w))) 3919 if (expect_false (!ev_is_active (w)))
3573 return; 3920 return;
3574 3921
… …
3601# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3948# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3602 3949
3603static void noinline 3950static void noinline
3604infy_add (EV_P_ ev_stat *w) 3951infy_add (EV_P_ ev_stat *w)
3605{ 3952{
3606 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3953 w->wd = inotify_add_watch (fs_fd, w->path,
3954 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3955 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3956 | IN_DONT_FOLLOW | IN_MASK_ADD);
3607 3957
3608 if (w->wd >= 0) 3958 if (w->wd >= 0)
3609 { 3959 {
3610 struct statfs sfs; 3960 struct statfs sfs;
3611 3961
… …
3615 3965
3616 if (!fs_2625) 3966 if (!fs_2625)
3617 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3967 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3618 else if (!statfs (w->path, &sfs) 3968 else if (!statfs (w->path, &sfs)
3619 && (sfs.f_type == 0x1373 /* devfs */ 3969 && (sfs.f_type == 0x1373 /* devfs */
3970 || sfs.f_type == 0x4006 /* fat */
3971 || sfs.f_type == 0x4d44 /* msdos */
3620 || sfs.f_type == 0xEF53 /* ext2/3 */ 3972 || sfs.f_type == 0xEF53 /* ext2/3 */
3973 || sfs.f_type == 0x72b6 /* jffs2 */
3974 || sfs.f_type == 0x858458f6 /* ramfs */
3975 || sfs.f_type == 0x5346544e /* ntfs */
3621 || sfs.f_type == 0x3153464a /* jfs */ 3976 || sfs.f_type == 0x3153464a /* jfs */
3977 || sfs.f_type == 0x9123683e /* btrfs */
3622 || sfs.f_type == 0x52654973 /* reiser3 */ 3978 || sfs.f_type == 0x52654973 /* reiser3 */
3623 || sfs.f_type == 0x01021994 /* tempfs */ 3979 || sfs.f_type == 0x01021994 /* tmpfs */
3624 || sfs.f_type == 0x58465342 /* xfs */)) 3980 || sfs.f_type == 0x58465342 /* xfs */))
3625 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3981 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3626 else 3982 else
3627 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3983 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3628 } 3984 }
… …
3741} 4097}
3742 4098
3743inline_size int 4099inline_size int
3744infy_newfd (void) 4100infy_newfd (void)
3745{ 4101{
3746#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4102#if defined IN_CLOEXEC && defined IN_NONBLOCK
3747 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4103 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3748 if (fd >= 0) 4104 if (fd >= 0)
3749 return fd; 4105 return fd;
3750#endif 4106#endif
3751 return inotify_init (); 4107 return inotify_init ();
… …
3826#else 4182#else
3827# define EV_LSTAT(p,b) lstat (p, b) 4183# define EV_LSTAT(p,b) lstat (p, b)
3828#endif 4184#endif
3829 4185
3830void 4186void
3831ev_stat_stat (EV_P_ ev_stat *w) 4187ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3832{ 4188{
3833 if (lstat (w->path, &w->attr) < 0) 4189 if (lstat (w->path, &w->attr) < 0)
3834 w->attr.st_nlink = 0; 4190 w->attr.st_nlink = 0;
3835 else if (!w->attr.st_nlink) 4191 else if (!w->attr.st_nlink)
3836 w->attr.st_nlink = 1; 4192 w->attr.st_nlink = 1;
… …
3875 ev_feed_event (EV_A_ w, EV_STAT); 4231 ev_feed_event (EV_A_ w, EV_STAT);
3876 } 4232 }
3877} 4233}
3878 4234
3879void 4235void
3880ev_stat_start (EV_P_ ev_stat *w) 4236ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3881{ 4237{
3882 if (expect_false (ev_is_active (w))) 4238 if (expect_false (ev_is_active (w)))
3883 return; 4239 return;
3884 4240
3885 ev_stat_stat (EV_A_ w); 4241 ev_stat_stat (EV_A_ w);
… …
3906 4262
3907 EV_FREQUENT_CHECK; 4263 EV_FREQUENT_CHECK;
3908} 4264}
3909 4265
3910void 4266void
3911ev_stat_stop (EV_P_ ev_stat *w) 4267ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3912{ 4268{
3913 clear_pending (EV_A_ (W)w); 4269 clear_pending (EV_A_ (W)w);
3914 if (expect_false (!ev_is_active (w))) 4270 if (expect_false (!ev_is_active (w)))
3915 return; 4271 return;
3916 4272
… …
3932} 4288}
3933#endif 4289#endif
3934 4290
3935#if EV_IDLE_ENABLE 4291#if EV_IDLE_ENABLE
3936void 4292void
3937ev_idle_start (EV_P_ ev_idle *w) 4293ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3938{ 4294{
3939 if (expect_false (ev_is_active (w))) 4295 if (expect_false (ev_is_active (w)))
3940 return; 4296 return;
3941 4297
3942 pri_adjust (EV_A_ (W)w); 4298 pri_adjust (EV_A_ (W)w);
… …
3955 4311
3956 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
3957} 4313}
3958 4314
3959void 4315void
3960ev_idle_stop (EV_P_ ev_idle *w) 4316ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3961{ 4317{
3962 clear_pending (EV_A_ (W)w); 4318 clear_pending (EV_A_ (W)w);
3963 if (expect_false (!ev_is_active (w))) 4319 if (expect_false (!ev_is_active (w)))
3964 return; 4320 return;
3965 4321
… …
3979} 4335}
3980#endif 4336#endif
3981 4337
3982#if EV_PREPARE_ENABLE 4338#if EV_PREPARE_ENABLE
3983void 4339void
3984ev_prepare_start (EV_P_ ev_prepare *w) 4340ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3985{ 4341{
3986 if (expect_false (ev_is_active (w))) 4342 if (expect_false (ev_is_active (w)))
3987 return; 4343 return;
3988 4344
3989 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
… …
3994 4350
3995 EV_FREQUENT_CHECK; 4351 EV_FREQUENT_CHECK;
3996} 4352}
3997 4353
3998void 4354void
3999ev_prepare_stop (EV_P_ ev_prepare *w) 4355ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4000{ 4356{
4001 clear_pending (EV_A_ (W)w); 4357 clear_pending (EV_A_ (W)w);
4002 if (expect_false (!ev_is_active (w))) 4358 if (expect_false (!ev_is_active (w)))
4003 return; 4359 return;
4004 4360
… …
4017} 4373}
4018#endif 4374#endif
4019 4375
4020#if EV_CHECK_ENABLE 4376#if EV_CHECK_ENABLE
4021void 4377void
4022ev_check_start (EV_P_ ev_check *w) 4378ev_check_start (EV_P_ ev_check *w) EV_THROW
4023{ 4379{
4024 if (expect_false (ev_is_active (w))) 4380 if (expect_false (ev_is_active (w)))
4025 return; 4381 return;
4026 4382
4027 EV_FREQUENT_CHECK; 4383 EV_FREQUENT_CHECK;
… …
4032 4388
4033 EV_FREQUENT_CHECK; 4389 EV_FREQUENT_CHECK;
4034} 4390}
4035 4391
4036void 4392void
4037ev_check_stop (EV_P_ ev_check *w) 4393ev_check_stop (EV_P_ ev_check *w) EV_THROW
4038{ 4394{
4039 clear_pending (EV_A_ (W)w); 4395 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4396 if (expect_false (!ev_is_active (w)))
4041 return; 4397 return;
4042 4398
… …
4055} 4411}
4056#endif 4412#endif
4057 4413
4058#if EV_EMBED_ENABLE 4414#if EV_EMBED_ENABLE
4059void noinline 4415void noinline
4060ev_embed_sweep (EV_P_ ev_embed *w) 4416ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4061{ 4417{
4062 ev_run (w->other, EVRUN_NOWAIT); 4418 ev_run (w->other, EVRUN_NOWAIT);
4063} 4419}
4064 4420
4065static void 4421static void
… …
4113 ev_idle_stop (EV_A_ idle); 4469 ev_idle_stop (EV_A_ idle);
4114} 4470}
4115#endif 4471#endif
4116 4472
4117void 4473void
4118ev_embed_start (EV_P_ ev_embed *w) 4474ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4119{ 4475{
4120 if (expect_false (ev_is_active (w))) 4476 if (expect_false (ev_is_active (w)))
4121 return; 4477 return;
4122 4478
4123 { 4479 {
… …
4144 4500
4145 EV_FREQUENT_CHECK; 4501 EV_FREQUENT_CHECK;
4146} 4502}
4147 4503
4148void 4504void
4149ev_embed_stop (EV_P_ ev_embed *w) 4505ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4150{ 4506{
4151 clear_pending (EV_A_ (W)w); 4507 clear_pending (EV_A_ (W)w);
4152 if (expect_false (!ev_is_active (w))) 4508 if (expect_false (!ev_is_active (w)))
4153 return; 4509 return;
4154 4510
… …
4164} 4520}
4165#endif 4521#endif
4166 4522
4167#if EV_FORK_ENABLE 4523#if EV_FORK_ENABLE
4168void 4524void
4169ev_fork_start (EV_P_ ev_fork *w) 4525ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4170{ 4526{
4171 if (expect_false (ev_is_active (w))) 4527 if (expect_false (ev_is_active (w)))
4172 return; 4528 return;
4173 4529
4174 EV_FREQUENT_CHECK; 4530 EV_FREQUENT_CHECK;
… …
4179 4535
4180 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
4181} 4537}
4182 4538
4183void 4539void
4184ev_fork_stop (EV_P_ ev_fork *w) 4540ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4185{ 4541{
4186 clear_pending (EV_A_ (W)w); 4542 clear_pending (EV_A_ (W)w);
4187 if (expect_false (!ev_is_active (w))) 4543 if (expect_false (!ev_is_active (w)))
4188 return; 4544 return;
4189 4545
… …
4202} 4558}
4203#endif 4559#endif
4204 4560
4205#if EV_CLEANUP_ENABLE 4561#if EV_CLEANUP_ENABLE
4206void 4562void
4207ev_cleanup_start (EV_P_ ev_cleanup *w) 4563ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4208{ 4564{
4209 if (expect_false (ev_is_active (w))) 4565 if (expect_false (ev_is_active (w)))
4210 return; 4566 return;
4211 4567
4212 EV_FREQUENT_CHECK; 4568 EV_FREQUENT_CHECK;
… …
4219 ev_unref (EV_A); 4575 ev_unref (EV_A);
4220 EV_FREQUENT_CHECK; 4576 EV_FREQUENT_CHECK;
4221} 4577}
4222 4578
4223void 4579void
4224ev_cleanup_stop (EV_P_ ev_cleanup *w) 4580ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4225{ 4581{
4226 clear_pending (EV_A_ (W)w); 4582 clear_pending (EV_A_ (W)w);
4227 if (expect_false (!ev_is_active (w))) 4583 if (expect_false (!ev_is_active (w)))
4228 return; 4584 return;
4229 4585
… …
4243} 4599}
4244#endif 4600#endif
4245 4601
4246#if EV_ASYNC_ENABLE 4602#if EV_ASYNC_ENABLE
4247void 4603void
4248ev_async_start (EV_P_ ev_async *w) 4604ev_async_start (EV_P_ ev_async *w) EV_THROW
4249{ 4605{
4250 if (expect_false (ev_is_active (w))) 4606 if (expect_false (ev_is_active (w)))
4251 return; 4607 return;
4252 4608
4253 w->sent = 0; 4609 w->sent = 0;
… …
4262 4618
4263 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
4264} 4620}
4265 4621
4266void 4622void
4267ev_async_stop (EV_P_ ev_async *w) 4623ev_async_stop (EV_P_ ev_async *w) EV_THROW
4268{ 4624{
4269 clear_pending (EV_A_ (W)w); 4625 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4626 if (expect_false (!ev_is_active (w)))
4271 return; 4627 return;
4272 4628
… …
4283 4639
4284 EV_FREQUENT_CHECK; 4640 EV_FREQUENT_CHECK;
4285} 4641}
4286 4642
4287void 4643void
4288ev_async_send (EV_P_ ev_async *w) 4644ev_async_send (EV_P_ ev_async *w) EV_THROW
4289{ 4645{
4290 w->sent = 1; 4646 w->sent = 1;
4291 evpipe_write (EV_A_ &async_pending); 4647 evpipe_write (EV_A_ &async_pending);
4292} 4648}
4293#endif 4649#endif
… …
4330 4686
4331 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4687 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4332} 4688}
4333 4689
4334void 4690void
4335ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4691ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4336{ 4692{
4337 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4693 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4338 4694
4339 if (expect_false (!once)) 4695 if (expect_false (!once))
4340 { 4696 {
… …
4362 4718
4363/*****************************************************************************/ 4719/*****************************************************************************/
4364 4720
4365#if EV_WALK_ENABLE 4721#if EV_WALK_ENABLE
4366void ecb_cold 4722void ecb_cold
4367ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4723ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4368{ 4724{
4369 int i, j; 4725 int i, j;
4370 ev_watcher_list *wl, *wn; 4726 ev_watcher_list *wl, *wn;
4371 4727
4372 if (types & (EV_IO | EV_EMBED)) 4728 if (types & (EV_IO | EV_EMBED))

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