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Comparing libev/ev.c (file contents):
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC vs.
Revision 1.461 by root, Fri Dec 27 06:01:22 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# define EV_NSIG (8 * sizeof (sigset_t) + 1)
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif 247#endif
250 248
251#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
253#endif 251#endif
254 252
255#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
256# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258# else 256# else
259# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
260# endif 258# endif
261#endif 259#endif
262 260
263#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265# define EV_USE_MONOTONIC EV_FEATURE_OS 263# define EV_USE_MONOTONIC EV_FEATURE_OS
266# else 264# else
267# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
268# endif 266# endif
269#endif 267#endif
… …
356 354
357#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 357#endif
360 358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
373#endif
374
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 375/* 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. */ 376/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 377#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 378# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 379# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 381# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 382# define EV_USE_MONOTONIC 1
369# else 383# else
… …
372# endif 386# endif
373#endif 387#endif
374 388
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376 390
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 391#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 393# define EV_USE_MONOTONIC 0
386#endif 394#endif
387 395
… …
395# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
396#endif 404#endif
397 405
398#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 408# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 409# include <sys/select.h>
402# endif 410# endif
403#endif 411#endif
404 412
405#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
… …
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
412# endif 420# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 421#endif
418 422
419#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 425# include <stdint.h>
… …
507 */ 511 */
508 512
509#ifndef ECB_H 513#ifndef ECB_H
510#define ECB_H 514#define ECB_H
511 515
516/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003
518
512#ifdef _WIN32 519#ifdef _WIN32
513 typedef signed char int8_t; 520 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 521 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 522 typedef signed short int16_t;
516 typedef unsigned short uint16_t; 523 typedef unsigned short uint16_t;
… …
521 typedef unsigned long long uint64_t; 528 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 529 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 530 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 531 typedef unsigned __int64 uint64_t;
525 #endif 532 #endif
533 #ifdef _WIN64
534 #define ECB_PTRSIZE 8
535 typedef uint64_t uintptr_t;
536 typedef int64_t intptr_t;
537 #else
538 #define ECB_PTRSIZE 4
539 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t;
541 #endif
526#else 542#else
527 #include <inttypes.h> 543 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU
545 #define ECB_PTRSIZE 8
546 #else
547 #define ECB_PTRSIZE 4
548 #endif
549#endif
550
551/* work around x32 idiocy by defining proper macros */
552#if __x86_64 || _M_AMD64
553 #if _ILP32
554 #define ECB_AMD64_X32 1
555 #else
556 #define ECB_AMD64 1
557 #endif
528#endif 558#endif
529 559
530/* many compilers define _GNUC_ to some versions but then only implement 560/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 561 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 562 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 563 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 564 * 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. 565 * an issue with that they should have done it right in the first place.
536 */ 566 */
537#ifndef ECB_GCC_VERSION 567#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 569 #define ECB_GCC_VERSION(major,minor) 0
540 #else 570 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 572 #endif
543#endif 573#endif
544 574
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
576#define ECB_C99 (__STDC_VERSION__ >= 199901L)
577#define ECB_C11 (__STDC_VERSION__ >= 201112L)
578#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L)
580
581#if ECB_CPP
582 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END }
585#else
586 #define ECB_EXTERN_C extern
587 #define ECB_EXTERN_C_BEG
588 #define ECB_EXTERN_C_END
589#endif
590
545/*****************************************************************************/ 591/*****************************************************************************/
546 592
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 593/* 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 */ 594/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 595
550#if ECB_NO_THREADS 596#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 597 #define ECB_NO_SMP 1
552#endif 598#endif
553 599
554#if ECB_NO_THREADS || ECB_NO_SMP 600#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 601 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 602#endif
557 603
558#ifndef ECB_MEMORY_FENCE 604#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 606 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 607 #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 */ 608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 612 #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 */ 613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 617 || 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") 618 #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__ ) \ 619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 622 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 626 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 628 #elif defined __mips__
629 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
630 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
632 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
634 #elif defined __hppa__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
636 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
637 #elif defined __ia64__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
639 #elif defined __m68k__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
641 #elif defined __m88k__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
643 #elif defined __sh__
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 645 #endif
585 #endif 646 #endif
586#endif 647#endif
587 648
588#ifndef ECB_MEMORY_FENCE 649#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
653
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model.
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */
662
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 664 #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 */ 665 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 666 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 667 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 668 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 669 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 670 #elif defined _WIN32
599 #include <WinNT.h> 671 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 672 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 673 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 674 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 675 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 676 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 677 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
678 #elif __xlC__
679 #define ECB_MEMORY_FENCE __sync ()
680 #endif
681#endif
682
683#ifndef ECB_MEMORY_FENCE
684 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
685 /* we assume that these memory fences work on all variables/all memory accesses, */
686 /* not just C11 atomics and atomic accesses */
687 #include <stdatomic.h>
688 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
689 /* any fence other than seq_cst, which isn't very efficient for us. */
690 /* Why that is, we don't know - either the C11 memory model is quite useless */
691 /* for most usages, or gcc and clang have a bug */
692 /* I *currently* lean towards the latter, and inefficiently implement */
693 /* all three of ecb's fences as a seq_cst fence */
694 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
606 #endif 695 #endif
607#endif 696#endif
608 697
609#ifndef ECB_MEMORY_FENCE 698#ifndef ECB_MEMORY_FENCE
610 #if !ECB_AVOID_PTHREADS 699 #if !ECB_AVOID_PTHREADS
… …
622 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 711 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
623 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 712 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
624 #endif 713 #endif
625#endif 714#endif
626 715
627#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 716#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
628 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 717 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
629#endif 718#endif
630 719
631#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 720#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
633#endif 722#endif
634 723
635/*****************************************************************************/ 724/*****************************************************************************/
636
637#define ECB_C99 (__STDC_VERSION__ >= 199901L)
638 725
639#if __cplusplus 726#if __cplusplus
640 #define ecb_inline static inline 727 #define ecb_inline static inline
641#elif ECB_GCC_VERSION(2,5) 728#elif ECB_GCC_VERSION(2,5)
642 #define ecb_inline static __inline__ 729 #define ecb_inline static __inline__
… …
681#elif ECB_GCC_VERSION(3,0) 768#elif ECB_GCC_VERSION(3,0)
682 #define ecb_decltype(x) __typeof(x) 769 #define ecb_decltype(x) __typeof(x)
683#endif 770#endif
684 771
685#define ecb_noinline ecb_attribute ((__noinline__)) 772#define ecb_noinline ecb_attribute ((__noinline__))
686#define ecb_noreturn ecb_attribute ((__noreturn__))
687#define ecb_unused ecb_attribute ((__unused__)) 773#define ecb_unused ecb_attribute ((__unused__))
688#define ecb_const ecb_attribute ((__const__)) 774#define ecb_const ecb_attribute ((__const__))
689#define ecb_pure ecb_attribute ((__pure__)) 775#define ecb_pure ecb_attribute ((__pure__))
776
777#if ECB_C11
778 #define ecb_noreturn _Noreturn
779#else
780 #define ecb_noreturn ecb_attribute ((__noreturn__))
781#endif
690 782
691#if ECB_GCC_VERSION(4,3) 783#if ECB_GCC_VERSION(4,3)
692 #define ecb_artificial ecb_attribute ((__artificial__)) 784 #define ecb_artificial ecb_attribute ((__artificial__))
693 #define ecb_hot ecb_attribute ((__hot__)) 785 #define ecb_hot ecb_attribute ((__hot__))
694 #define ecb_cold ecb_attribute ((__cold__)) 786 #define ecb_cold ecb_attribute ((__cold__))
… …
785 877
786 return r + ecb_ld32 (x); 878 return r + ecb_ld32 (x);
787 } 879 }
788#endif 880#endif
789 881
882ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
883ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
884ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
885ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886
790ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
792{ 889{
793 return ( (x * 0x0802U & 0x22110U) 890 return ( (x * 0x0802U & 0x22110U)
794 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
878 ecb_inline void ecb_unreachable (void) ecb_noreturn; 975 ecb_inline void ecb_unreachable (void) ecb_noreturn;
879 ecb_inline void ecb_unreachable (void) { } 976 ecb_inline void ecb_unreachable (void) { }
880#endif 977#endif
881 978
882/* try to tell the compiler that some condition is definitely true */ 979/* try to tell the compiler that some condition is definitely true */
883#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
884 981
885ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
886ecb_inline unsigned char 983ecb_inline unsigned char
887ecb_byteorder_helper (void) 984ecb_byteorder_helper (void)
888{ 985{
889 const uint32_t u = 0x11223344; 986 /* the union code still generates code under pressure in gcc, */
890 return *(unsigned char *)&u; 987 /* but less than using pointers, and always seems to */
988 /* successfully return a constant. */
989 /* the reason why we have this horrible preprocessor mess */
990 /* is to avoid it in all cases, at least on common architectures */
991 /* or when using a recent enough gcc version (>= 4.6) */
992#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
993 return 0x44;
994#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
995 return 0x44;
996#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
997 return 0x11;
998#else
999 union
1000 {
1001 uint32_t i;
1002 uint8_t c;
1003 } u = { 0x11223344 };
1004 return u.c;
1005#endif
891} 1006}
892 1007
893ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
894ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1009ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
895ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
926 } 1041 }
927#else 1042#else
928 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
929#endif 1044#endif
930 1045
1046/*******************************************************************************/
1047/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1048
1049/* basically, everything uses "ieee pure-endian" floating point numbers */
1050/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051#if 0 \
1052 || __i386 || __i386__ \
1053 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1054 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1055 || defined __arm__ && defined __ARM_EABI__ \
1056 || defined __s390__ || defined __s390x__ \
1057 || defined __mips__ \
1058 || defined __alpha__ \
1059 || defined __hppa__ \
1060 || defined __ia64__ \
1061 || defined __m68k__ \
1062 || defined __m88k__ \
1063 || defined __sh__ \
1064 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1065 #define ECB_STDFP 1
1066 #include <string.h> /* for memcpy */
1067#else
1068 #define ECB_STDFP 0
1069#endif
1070
1071#ifndef ECB_NO_LIBM
1072
1073 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1074
1075 #ifdef NEN
1076 #define ECB_NAN NAN
1077 #else
1078 #define ECB_NAN INFINITY
1079 #endif
1080
1081 /* converts an ieee half/binary16 to a float */
1082 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1083 ecb_function_ float
1084 ecb_binary16_to_float (uint16_t x)
1085 {
1086 int e = (x >> 10) & 0x1f;
1087 int m = x & 0x3ff;
1088 float r;
1089
1090 if (!e ) r = ldexpf (m , -24);
1091 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1092 else if (m ) r = ECB_NAN;
1093 else r = INFINITY;
1094
1095 return x & 0x8000 ? -r : r;
1096 }
1097
1098 /* convert a float to ieee single/binary32 */
1099 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1100 ecb_function_ uint32_t
1101 ecb_float_to_binary32 (float x)
1102 {
1103 uint32_t r;
1104
1105 #if ECB_STDFP
1106 memcpy (&r, &x, 4);
1107 #else
1108 /* slow emulation, works for anything but -0 */
1109 uint32_t m;
1110 int e;
1111
1112 if (x == 0e0f ) return 0x00000000U;
1113 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1114 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1115 if (x != x ) return 0x7fbfffffU;
1116
1117 m = frexpf (x, &e) * 0x1000000U;
1118
1119 r = m & 0x80000000U;
1120
1121 if (r)
1122 m = -m;
1123
1124 if (e <= -126)
1125 {
1126 m &= 0xffffffU;
1127 m >>= (-125 - e);
1128 e = -126;
1129 }
1130
1131 r |= (e + 126) << 23;
1132 r |= m & 0x7fffffU;
1133 #endif
1134
1135 return r;
1136 }
1137
1138 /* converts an ieee single/binary32 to a float */
1139 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1140 ecb_function_ float
1141 ecb_binary32_to_float (uint32_t x)
1142 {
1143 float r;
1144
1145 #if ECB_STDFP
1146 memcpy (&r, &x, 4);
1147 #else
1148 /* emulation, only works for normals and subnormals and +0 */
1149 int neg = x >> 31;
1150 int e = (x >> 23) & 0xffU;
1151
1152 x &= 0x7fffffU;
1153
1154 if (e)
1155 x |= 0x800000U;
1156 else
1157 e = 1;
1158
1159 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1160 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1161
1162 r = neg ? -r : r;
1163 #endif
1164
1165 return r;
1166 }
1167
1168 /* convert a double to ieee double/binary64 */
1169 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1170 ecb_function_ uint64_t
1171 ecb_double_to_binary64 (double x)
1172 {
1173 uint64_t r;
1174
1175 #if ECB_STDFP
1176 memcpy (&r, &x, 8);
1177 #else
1178 /* slow emulation, works for anything but -0 */
1179 uint64_t m;
1180 int e;
1181
1182 if (x == 0e0 ) return 0x0000000000000000U;
1183 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1184 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1185 if (x != x ) return 0X7ff7ffffffffffffU;
1186
1187 m = frexp (x, &e) * 0x20000000000000U;
1188
1189 r = m & 0x8000000000000000;;
1190
1191 if (r)
1192 m = -m;
1193
1194 if (e <= -1022)
1195 {
1196 m &= 0x1fffffffffffffU;
1197 m >>= (-1021 - e);
1198 e = -1022;
1199 }
1200
1201 r |= ((uint64_t)(e + 1022)) << 52;
1202 r |= m & 0xfffffffffffffU;
1203 #endif
1204
1205 return r;
1206 }
1207
1208 /* converts an ieee double/binary64 to a double */
1209 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1210 ecb_function_ double
1211 ecb_binary64_to_double (uint64_t x)
1212 {
1213 double r;
1214
1215 #if ECB_STDFP
1216 memcpy (&r, &x, 8);
1217 #else
1218 /* emulation, only works for normals and subnormals and +0 */
1219 int neg = x >> 63;
1220 int e = (x >> 52) & 0x7ffU;
1221
1222 x &= 0xfffffffffffffU;
1223
1224 if (e)
1225 x |= 0x10000000000000U;
1226 else
1227 e = 1;
1228
1229 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1230 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1231
1232 r = neg ? -r : r;
1233 #endif
1234
1235 return r;
1236 }
1237
1238#endif
1239
931#endif 1240#endif
932 1241
933/* ECB.H END */ 1242/* ECB.H END */
934 1243
935#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1244#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1101{ 1410{
1102 write (STDERR_FILENO, msg, strlen (msg)); 1411 write (STDERR_FILENO, msg, strlen (msg));
1103} 1412}
1104#endif 1413#endif
1105 1414
1106static void (*syserr_cb)(const char *msg); 1415static void (*syserr_cb)(const char *msg) EV_THROW;
1107 1416
1108void ecb_cold 1417void ecb_cold
1109ev_set_syserr_cb (void (*cb)(const char *msg)) 1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1110{ 1419{
1111 syserr_cb = cb; 1420 syserr_cb = cb;
1112} 1421}
1113 1422
1114static void noinline ecb_cold 1423static void noinline ecb_cold
… …
1132 abort (); 1441 abort ();
1133 } 1442 }
1134} 1443}
1135 1444
1136static void * 1445static void *
1137ev_realloc_emul (void *ptr, long size) 1446ev_realloc_emul (void *ptr, long size) EV_THROW
1138{ 1447{
1139#if __GLIBC__
1140 return realloc (ptr, size);
1141#else
1142 /* some systems, notably openbsd and darwin, fail to properly 1448 /* some systems, notably openbsd and darwin, fail to properly
1143 * implement realloc (x, 0) (as required by both ansi c-89 and 1449 * implement realloc (x, 0) (as required by both ansi c-89 and
1144 * the single unix specification, so work around them here. 1450 * the single unix specification, so work around them here.
1451 * recently, also (at least) fedora and debian started breaking it,
1452 * despite documenting it otherwise.
1145 */ 1453 */
1146 1454
1147 if (size) 1455 if (size)
1148 return realloc (ptr, size); 1456 return realloc (ptr, size);
1149 1457
1150 free (ptr); 1458 free (ptr);
1151 return 0; 1459 return 0;
1152#endif
1153} 1460}
1154 1461
1155static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1156 1463
1157void ecb_cold 1464void ecb_cold
1158ev_set_allocator (void *(*cb)(void *ptr, long size)) 1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1159{ 1466{
1160 alloc = cb; 1467 alloc = cb;
1161} 1468}
1162 1469
1163inline_speed void * 1470inline_speed void *
… …
1280 1587
1281/*****************************************************************************/ 1588/*****************************************************************************/
1282 1589
1283#ifndef EV_HAVE_EV_TIME 1590#ifndef EV_HAVE_EV_TIME
1284ev_tstamp 1591ev_tstamp
1285ev_time (void) 1592ev_time (void) EV_THROW
1286{ 1593{
1287#if EV_USE_REALTIME 1594#if EV_USE_REALTIME
1288 if (expect_true (have_realtime)) 1595 if (expect_true (have_realtime))
1289 { 1596 {
1290 struct timespec ts; 1597 struct timespec ts;
… …
1314 return ev_time (); 1621 return ev_time ();
1315} 1622}
1316 1623
1317#if EV_MULTIPLICITY 1624#if EV_MULTIPLICITY
1318ev_tstamp 1625ev_tstamp
1319ev_now (EV_P) 1626ev_now (EV_P) EV_THROW
1320{ 1627{
1321 return ev_rt_now; 1628 return ev_rt_now;
1322} 1629}
1323#endif 1630#endif
1324 1631
1325void 1632void
1326ev_sleep (ev_tstamp delay) 1633ev_sleep (ev_tstamp delay) EV_THROW
1327{ 1634{
1328 if (delay > 0.) 1635 if (delay > 0.)
1329 { 1636 {
1330#if EV_USE_NANOSLEEP 1637#if EV_USE_NANOSLEEP
1331 struct timespec ts; 1638 struct timespec ts;
1332 1639
1333 EV_TS_SET (ts, delay); 1640 EV_TS_SET (ts, delay);
1334 nanosleep (&ts, 0); 1641 nanosleep (&ts, 0);
1335#elif defined(_WIN32) 1642#elif defined _WIN32
1336 Sleep ((unsigned long)(delay * 1e3)); 1643 Sleep ((unsigned long)(delay * 1e3));
1337#else 1644#else
1338 struct timeval tv; 1645 struct timeval tv;
1339 1646
1340 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1647 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1412pendingcb (EV_P_ ev_prepare *w, int revents) 1719pendingcb (EV_P_ ev_prepare *w, int revents)
1413{ 1720{
1414} 1721}
1415 1722
1416void noinline 1723void noinline
1417ev_feed_event (EV_P_ void *w, int revents) 1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1418{ 1725{
1419 W w_ = (W)w; 1726 W w_ = (W)w;
1420 int pri = ABSPRI (w_); 1727 int pri = ABSPRI (w_);
1421 1728
1422 if (expect_false (w_->pending)) 1729 if (expect_false (w_->pending))
… …
1426 w_->pending = ++pendingcnt [pri]; 1733 w_->pending = ++pendingcnt [pri];
1427 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1734 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1428 pendings [pri][w_->pending - 1].w = w_; 1735 pendings [pri][w_->pending - 1].w = w_;
1429 pendings [pri][w_->pending - 1].events = revents; 1736 pendings [pri][w_->pending - 1].events = revents;
1430 } 1737 }
1738
1739 pendingpri = NUMPRI - 1;
1431} 1740}
1432 1741
1433inline_speed void 1742inline_speed void
1434feed_reverse (EV_P_ W w) 1743feed_reverse (EV_P_ W w)
1435{ 1744{
… …
1481 if (expect_true (!anfd->reify)) 1790 if (expect_true (!anfd->reify))
1482 fd_event_nocheck (EV_A_ fd, revents); 1791 fd_event_nocheck (EV_A_ fd, revents);
1483} 1792}
1484 1793
1485void 1794void
1486ev_feed_fd_event (EV_P_ int fd, int revents) 1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1487{ 1796{
1488 if (fd >= 0 && fd < anfdmax) 1797 if (fd >= 0 && fd < anfdmax)
1489 fd_event_nocheck (EV_A_ fd, revents); 1798 fd_event_nocheck (EV_A_ fd, revents);
1490} 1799}
1491 1800
… …
1810static void noinline ecb_cold 2119static void noinline ecb_cold
1811evpipe_init (EV_P) 2120evpipe_init (EV_P)
1812{ 2121{
1813 if (!ev_is_active (&pipe_w)) 2122 if (!ev_is_active (&pipe_w))
1814 { 2123 {
2124 int fds [2];
2125
1815# if EV_USE_EVENTFD 2126# if EV_USE_EVENTFD
2127 fds [0] = -1;
1816 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2128 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1817 if (evfd < 0 && errno == EINVAL) 2129 if (fds [1] < 0 && errno == EINVAL)
1818 evfd = eventfd (0, 0); 2130 fds [1] = eventfd (0, 0);
1819 2131
1820 if (evfd >= 0) 2132 if (fds [1] < 0)
2133# endif
1821 { 2134 {
2135 while (pipe (fds))
2136 ev_syserr ("(libev) error creating signal/async pipe");
2137
2138 fd_intern (fds [0]);
2139 }
2140
1822 evpipe [0] = -1; 2141 evpipe [0] = fds [0];
1823 fd_intern (evfd); /* doing it twice doesn't hurt */ 2142
1824 ev_io_set (&pipe_w, evfd, EV_READ); 2143 if (evpipe [1] < 0)
2144 evpipe [1] = fds [1]; /* first call, set write fd */
2145 else
2146 {
2147 /* on subsequent calls, do not change evpipe [1] */
2148 /* so that evpipe_write can always rely on its value. */
2149 /* this branch does not do anything sensible on windows, */
2150 /* so must not be executed on windows */
2151
2152 dup2 (fds [1], evpipe [1]);
2153 close (fds [1]);
2154 }
2155
2156 fd_intern (evpipe [1]);
2157
2158 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2159 ev_io_start (EV_A_ &pipe_w);
2160 ev_unref (EV_A); /* watcher should not keep loop alive */
2161 }
2162}
2163
2164inline_speed void
2165evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2166{
2167 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2168
2169 if (expect_true (*flag))
2170 return;
2171
2172 *flag = 1;
2173 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2174
2175 pipe_write_skipped = 1;
2176
2177 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2178
2179 if (pipe_write_wanted)
2180 {
2181 int old_errno;
2182
2183 pipe_write_skipped = 0;
2184 ECB_MEMORY_FENCE_RELEASE;
2185
2186 old_errno = errno; /* save errno because write will clobber it */
2187
2188#if EV_USE_EVENTFD
2189 if (evpipe [0] < 0)
2190 {
2191 uint64_t counter = 1;
2192 write (evpipe [1], &counter, sizeof (uint64_t));
1825 } 2193 }
1826 else 2194 else
1827# endif 2195#endif
1828 { 2196 {
1829 while (pipe (evpipe)) 2197#ifdef _WIN32
1830 ev_syserr ("(libev) error creating signal/async pipe"); 2198 WSABUF buf;
1831 2199 DWORD sent;
1832 fd_intern (evpipe [0]); 2200 buf.buf = &buf;
1833 fd_intern (evpipe [1]); 2201 buf.len = 1;
1834 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1835 } 2203#else
1836
1837 ev_io_start (EV_A_ &pipe_w);
1838 ev_unref (EV_A); /* watcher should not keep loop alive */
1839 }
1840}
1841
1842inline_speed void
1843evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1844{
1845 if (expect_true (*flag))
1846 return;
1847
1848 *flag = 1;
1849
1850 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1851
1852 pipe_write_skipped = 1;
1853
1854 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1855
1856 if (pipe_write_wanted)
1857 {
1858 int old_errno;
1859
1860 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1861
1862 old_errno = errno; /* save errno because write will clobber it */
1863
1864#if EV_USE_EVENTFD
1865 if (evfd >= 0)
1866 {
1867 uint64_t counter = 1;
1868 write (evfd, &counter, sizeof (uint64_t));
1869 }
1870 else
1871#endif
1872 {
1873 /* win32 people keep sending patches that change this write() to send() */
1874 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1875 /* so when you think this write should be a send instead, please find out */
1876 /* where your send() is from - it's definitely not the microsoft send, and */
1877 /* tell me. thank you. */
1878 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1879 /* check the ev documentation on how to use this flag */
1880 write (evpipe [1], &(evpipe [1]), 1); 2204 write (evpipe [1], &(evpipe [1]), 1);
2205#endif
1881 } 2206 }
1882 2207
1883 errno = old_errno; 2208 errno = old_errno;
1884 } 2209 }
1885} 2210}
… …
1892 int i; 2217 int i;
1893 2218
1894 if (revents & EV_READ) 2219 if (revents & EV_READ)
1895 { 2220 {
1896#if EV_USE_EVENTFD 2221#if EV_USE_EVENTFD
1897 if (evfd >= 0) 2222 if (evpipe [0] < 0)
1898 { 2223 {
1899 uint64_t counter; 2224 uint64_t counter;
1900 read (evfd, &counter, sizeof (uint64_t)); 2225 read (evpipe [1], &counter, sizeof (uint64_t));
1901 } 2226 }
1902 else 2227 else
1903#endif 2228#endif
1904 { 2229 {
1905 char dummy; 2230 char dummy[4];
1906 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2231#ifdef _WIN32
2232 WSABUF buf;
2233 DWORD recvd;
2234 DWORD flags = 0;
2235 buf.buf = dummy;
2236 buf.len = sizeof (dummy);
2237 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2238#else
1907 read (evpipe [0], &dummy, 1); 2239 read (evpipe [0], &dummy, sizeof (dummy));
2240#endif
1908 } 2241 }
1909 } 2242 }
1910 2243
1911 pipe_write_skipped = 0; 2244 pipe_write_skipped = 0;
2245
2246 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1912 2247
1913#if EV_SIGNAL_ENABLE 2248#if EV_SIGNAL_ENABLE
1914 if (sig_pending) 2249 if (sig_pending)
1915 { 2250 {
1916 sig_pending = 0; 2251 sig_pending = 0;
2252
2253 ECB_MEMORY_FENCE;
1917 2254
1918 for (i = EV_NSIG - 1; i--; ) 2255 for (i = EV_NSIG - 1; i--; )
1919 if (expect_false (signals [i].pending)) 2256 if (expect_false (signals [i].pending))
1920 ev_feed_signal_event (EV_A_ i + 1); 2257 ev_feed_signal_event (EV_A_ i + 1);
1921 } 2258 }
… …
1923 2260
1924#if EV_ASYNC_ENABLE 2261#if EV_ASYNC_ENABLE
1925 if (async_pending) 2262 if (async_pending)
1926 { 2263 {
1927 async_pending = 0; 2264 async_pending = 0;
2265
2266 ECB_MEMORY_FENCE;
1928 2267
1929 for (i = asynccnt; i--; ) 2268 for (i = asynccnt; i--; )
1930 if (asyncs [i]->sent) 2269 if (asyncs [i]->sent)
1931 { 2270 {
1932 asyncs [i]->sent = 0; 2271 asyncs [i]->sent = 0;
2272 ECB_MEMORY_FENCE_RELEASE;
1933 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2273 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1934 } 2274 }
1935 } 2275 }
1936#endif 2276#endif
1937} 2277}
1938 2278
1939/*****************************************************************************/ 2279/*****************************************************************************/
1940 2280
1941void 2281void
1942ev_feed_signal (int signum) 2282ev_feed_signal (int signum) EV_THROW
1943{ 2283{
1944#if EV_MULTIPLICITY 2284#if EV_MULTIPLICITY
2285 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE;
1945 EV_P = signals [signum - 1].loop; 2287 EV_A = signals [signum - 1].loop;
1946 2288
1947 if (!EV_A) 2289 if (!EV_A)
1948 return; 2290 return;
1949#endif 2291#endif
1950 2292
1951 if (!ev_active (&pipe_w))
1952 return;
1953
1954 signals [signum - 1].pending = 1; 2293 signals [signum - 1].pending = 1;
1955 evpipe_write (EV_A_ &sig_pending); 2294 evpipe_write (EV_A_ &sig_pending);
1956} 2295}
1957 2296
1958static void 2297static void
… …
1964 2303
1965 ev_feed_signal (signum); 2304 ev_feed_signal (signum);
1966} 2305}
1967 2306
1968void noinline 2307void noinline
1969ev_feed_signal_event (EV_P_ int signum) 2308ev_feed_signal_event (EV_P_ int signum) EV_THROW
1970{ 2309{
1971 WL w; 2310 WL w;
1972 2311
1973 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2312 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1974 return; 2313 return;
1975 2314
1976 --signum; 2315 --signum;
1977 2316
1978#if EV_MULTIPLICITY 2317#if EV_MULTIPLICITY
… …
1982 if (expect_false (signals [signum].loop != EV_A)) 2321 if (expect_false (signals [signum].loop != EV_A))
1983 return; 2322 return;
1984#endif 2323#endif
1985 2324
1986 signals [signum].pending = 0; 2325 signals [signum].pending = 0;
2326 ECB_MEMORY_FENCE_RELEASE;
1987 2327
1988 for (w = signals [signum].head; w; w = w->next) 2328 for (w = signals [signum].head; w; w = w->next)
1989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2329 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1990} 2330}
1991 2331
… …
2090#if EV_USE_SELECT 2430#if EV_USE_SELECT
2091# include "ev_select.c" 2431# include "ev_select.c"
2092#endif 2432#endif
2093 2433
2094int ecb_cold 2434int ecb_cold
2095ev_version_major (void) 2435ev_version_major (void) EV_THROW
2096{ 2436{
2097 return EV_VERSION_MAJOR; 2437 return EV_VERSION_MAJOR;
2098} 2438}
2099 2439
2100int ecb_cold 2440int ecb_cold
2101ev_version_minor (void) 2441ev_version_minor (void) EV_THROW
2102{ 2442{
2103 return EV_VERSION_MINOR; 2443 return EV_VERSION_MINOR;
2104} 2444}
2105 2445
2106/* return true if we are running with elevated privileges and should ignore env variables */ 2446/* return true if we are running with elevated privileges and should ignore env variables */
… …
2114 || getgid () != getegid (); 2454 || getgid () != getegid ();
2115#endif 2455#endif
2116} 2456}
2117 2457
2118unsigned int ecb_cold 2458unsigned int ecb_cold
2119ev_supported_backends (void) 2459ev_supported_backends (void) EV_THROW
2120{ 2460{
2121 unsigned int flags = 0; 2461 unsigned int flags = 0;
2122 2462
2123 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2124 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2128 2468
2129 return flags; 2469 return flags;
2130} 2470}
2131 2471
2132unsigned int ecb_cold 2472unsigned int ecb_cold
2133ev_recommended_backends (void) 2473ev_recommended_backends (void) EV_THROW
2134{ 2474{
2135 unsigned int flags = ev_supported_backends (); 2475 unsigned int flags = ev_supported_backends ();
2136 2476
2137#ifndef __NetBSD__ 2477#ifndef __NetBSD__
2138 /* kqueue is borked on everything but netbsd apparently */ 2478 /* kqueue is borked on everything but netbsd apparently */
… …
2150 2490
2151 return flags; 2491 return flags;
2152} 2492}
2153 2493
2154unsigned int ecb_cold 2494unsigned int ecb_cold
2155ev_embeddable_backends (void) 2495ev_embeddable_backends (void) EV_THROW
2156{ 2496{
2157 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2158 2498
2159 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2499 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2160 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2500 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2162 2502
2163 return flags; 2503 return flags;
2164} 2504}
2165 2505
2166unsigned int 2506unsigned int
2167ev_backend (EV_P) 2507ev_backend (EV_P) EV_THROW
2168{ 2508{
2169 return backend; 2509 return backend;
2170} 2510}
2171 2511
2172#if EV_FEATURE_API 2512#if EV_FEATURE_API
2173unsigned int 2513unsigned int
2174ev_iteration (EV_P) 2514ev_iteration (EV_P) EV_THROW
2175{ 2515{
2176 return loop_count; 2516 return loop_count;
2177} 2517}
2178 2518
2179unsigned int 2519unsigned int
2180ev_depth (EV_P) 2520ev_depth (EV_P) EV_THROW
2181{ 2521{
2182 return loop_depth; 2522 return loop_depth;
2183} 2523}
2184 2524
2185void 2525void
2186ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2187{ 2527{
2188 io_blocktime = interval; 2528 io_blocktime = interval;
2189} 2529}
2190 2530
2191void 2531void
2192ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2193{ 2533{
2194 timeout_blocktime = interval; 2534 timeout_blocktime = interval;
2195} 2535}
2196 2536
2197void 2537void
2198ev_set_userdata (EV_P_ void *data) 2538ev_set_userdata (EV_P_ void *data) EV_THROW
2199{ 2539{
2200 userdata = data; 2540 userdata = data;
2201} 2541}
2202 2542
2203void * 2543void *
2204ev_userdata (EV_P) 2544ev_userdata (EV_P) EV_THROW
2205{ 2545{
2206 return userdata; 2546 return userdata;
2207} 2547}
2208 2548
2209void 2549void
2210ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2550ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2211{ 2551{
2212 invoke_cb = invoke_pending_cb; 2552 invoke_cb = invoke_pending_cb;
2213} 2553}
2214 2554
2215void 2555void
2216ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2556ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2217{ 2557{
2218 release_cb = release; 2558 release_cb = release;
2219 acquire_cb = acquire; 2559 acquire_cb = acquire;
2220} 2560}
2221#endif 2561#endif
2222 2562
2223/* initialise a loop structure, must be zero-initialised */ 2563/* initialise a loop structure, must be zero-initialised */
2224static void noinline ecb_cold 2564static void noinline ecb_cold
2225loop_init (EV_P_ unsigned int flags) 2565loop_init (EV_P_ unsigned int flags) EV_THROW
2226{ 2566{
2227 if (!backend) 2567 if (!backend)
2228 { 2568 {
2229 origflags = flags; 2569 origflags = flags;
2230 2570
… …
2275#if EV_ASYNC_ENABLE 2615#if EV_ASYNC_ENABLE
2276 async_pending = 0; 2616 async_pending = 0;
2277#endif 2617#endif
2278 pipe_write_skipped = 0; 2618 pipe_write_skipped = 0;
2279 pipe_write_wanted = 0; 2619 pipe_write_wanted = 0;
2620 evpipe [0] = -1;
2621 evpipe [1] = -1;
2280#if EV_USE_INOTIFY 2622#if EV_USE_INOTIFY
2281 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2623 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2282#endif 2624#endif
2283#if EV_USE_SIGNALFD 2625#if EV_USE_SIGNALFD
2284 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2626 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2335 EV_INVOKE_PENDING; 2677 EV_INVOKE_PENDING;
2336 } 2678 }
2337#endif 2679#endif
2338 2680
2339#if EV_CHILD_ENABLE 2681#if EV_CHILD_ENABLE
2340 if (ev_is_active (&childev)) 2682 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2341 { 2683 {
2342 ev_ref (EV_A); /* child watcher */ 2684 ev_ref (EV_A); /* child watcher */
2343 ev_signal_stop (EV_A_ &childev); 2685 ev_signal_stop (EV_A_ &childev);
2344 } 2686 }
2345#endif 2687#endif
… …
2347 if (ev_is_active (&pipe_w)) 2689 if (ev_is_active (&pipe_w))
2348 { 2690 {
2349 /*ev_ref (EV_A);*/ 2691 /*ev_ref (EV_A);*/
2350 /*ev_io_stop (EV_A_ &pipe_w);*/ 2692 /*ev_io_stop (EV_A_ &pipe_w);*/
2351 2693
2352#if EV_USE_EVENTFD
2353 if (evfd >= 0)
2354 close (evfd);
2355#endif
2356
2357 if (evpipe [0] >= 0)
2358 {
2359 EV_WIN32_CLOSE_FD (evpipe [0]); 2694 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2360 EV_WIN32_CLOSE_FD (evpipe [1]); 2695 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2361 }
2362 } 2696 }
2363 2697
2364#if EV_USE_SIGNALFD 2698#if EV_USE_SIGNALFD
2365 if (ev_is_active (&sigfd_w)) 2699 if (ev_is_active (&sigfd_w))
2366 close (sigfd); 2700 close (sigfd);
… …
2452#endif 2786#endif
2453#if EV_USE_INOTIFY 2787#if EV_USE_INOTIFY
2454 infy_fork (EV_A); 2788 infy_fork (EV_A);
2455#endif 2789#endif
2456 2790
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2457 if (ev_is_active (&pipe_w)) 2792 if (ev_is_active (&pipe_w))
2458 { 2793 {
2459 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2794 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2460 2795
2461 ev_ref (EV_A); 2796 ev_ref (EV_A);
2462 ev_io_stop (EV_A_ &pipe_w); 2797 ev_io_stop (EV_A_ &pipe_w);
2463 2798
2464#if EV_USE_EVENTFD
2465 if (evfd >= 0)
2466 close (evfd);
2467#endif
2468
2469 if (evpipe [0] >= 0) 2799 if (evpipe [0] >= 0)
2470 {
2471 EV_WIN32_CLOSE_FD (evpipe [0]); 2800 EV_WIN32_CLOSE_FD (evpipe [0]);
2472 EV_WIN32_CLOSE_FD (evpipe [1]);
2473 }
2474 2801
2475#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476 evpipe_init (EV_A); 2802 evpipe_init (EV_A);
2477 /* now iterate over everything, in case we missed something */ 2803 /* iterate over everything, in case we missed something before */
2478 pipecb (EV_A_ &pipe_w, EV_READ); 2804 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2479#endif
2480 } 2805 }
2806#endif
2481 2807
2482 postfork = 0; 2808 postfork = 0;
2483} 2809}
2484 2810
2485#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
2486 2812
2487struct ev_loop * ecb_cold 2813struct ev_loop * ecb_cold
2488ev_loop_new (unsigned int flags) 2814ev_loop_new (unsigned int flags) EV_THROW
2489{ 2815{
2490 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2491 2817
2492 memset (EV_A, 0, sizeof (struct ev_loop)); 2818 memset (EV_A, 0, sizeof (struct ev_loop));
2493 loop_init (EV_A_ flags); 2819 loop_init (EV_A_ flags);
… …
2537} 2863}
2538#endif 2864#endif
2539 2865
2540#if EV_FEATURE_API 2866#if EV_FEATURE_API
2541void ecb_cold 2867void ecb_cold
2542ev_verify (EV_P) 2868ev_verify (EV_P) EV_THROW
2543{ 2869{
2544#if EV_VERIFY 2870#if EV_VERIFY
2545 int i; 2871 int i;
2546 WL w; 2872 WL w, w2;
2547 2873
2548 assert (activecnt >= -1); 2874 assert (activecnt >= -1);
2549 2875
2550 assert (fdchangemax >= fdchangecnt); 2876 assert (fdchangemax >= fdchangecnt);
2551 for (i = 0; i < fdchangecnt; ++i) 2877 for (i = 0; i < fdchangecnt; ++i)
2552 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2553 2879
2554 assert (anfdmax >= 0); 2880 assert (anfdmax >= 0);
2555 for (i = 0; i < anfdmax; ++i) 2881 for (i = 0; i < anfdmax; ++i)
2882 {
2883 int j = 0;
2884
2556 for (w = anfds [i].head; w; w = w->next) 2885 for (w = w2 = anfds [i].head; w; w = w->next)
2557 { 2886 {
2558 verify_watcher (EV_A_ (W)w); 2887 verify_watcher (EV_A_ (W)w);
2888
2889 if (j++ & 1)
2890 {
2891 assert (("libev: io watcher list contains a loop", w != w2));
2892 w2 = w2->next;
2893 }
2894
2559 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2895 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2560 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2896 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2561 } 2897 }
2898 }
2562 2899
2563 assert (timermax >= timercnt); 2900 assert (timermax >= timercnt);
2564 verify_heap (EV_A_ timers, timercnt); 2901 verify_heap (EV_A_ timers, timercnt);
2565 2902
2566#if EV_PERIODIC_ENABLE 2903#if EV_PERIODIC_ENABLE
… …
2616#if EV_MULTIPLICITY 2953#if EV_MULTIPLICITY
2617struct ev_loop * ecb_cold 2954struct ev_loop * ecb_cold
2618#else 2955#else
2619int 2956int
2620#endif 2957#endif
2621ev_default_loop (unsigned int flags) 2958ev_default_loop (unsigned int flags) EV_THROW
2622{ 2959{
2623 if (!ev_default_loop_ptr) 2960 if (!ev_default_loop_ptr)
2624 { 2961 {
2625#if EV_MULTIPLICITY 2962#if EV_MULTIPLICITY
2626 EV_P = ev_default_loop_ptr = &default_loop_struct; 2963 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2645 2982
2646 return ev_default_loop_ptr; 2983 return ev_default_loop_ptr;
2647} 2984}
2648 2985
2649void 2986void
2650ev_loop_fork (EV_P) 2987ev_loop_fork (EV_P) EV_THROW
2651{ 2988{
2652 postfork = 1; /* must be in line with ev_default_fork */ 2989 postfork = 1;
2653} 2990}
2654 2991
2655/*****************************************************************************/ 2992/*****************************************************************************/
2656 2993
2657void 2994void
… …
2659{ 2996{
2660 EV_CB_INVOKE ((W)w, revents); 2997 EV_CB_INVOKE ((W)w, revents);
2661} 2998}
2662 2999
2663unsigned int 3000unsigned int
2664ev_pending_count (EV_P) 3001ev_pending_count (EV_P) EV_THROW
2665{ 3002{
2666 int pri; 3003 int pri;
2667 unsigned int count = 0; 3004 unsigned int count = 0;
2668 3005
2669 for (pri = NUMPRI; pri--; ) 3006 for (pri = NUMPRI; pri--; )
… …
2673} 3010}
2674 3011
2675void noinline 3012void noinline
2676ev_invoke_pending (EV_P) 3013ev_invoke_pending (EV_P)
2677{ 3014{
2678 int pri; 3015 pendingpri = NUMPRI;
2679 3016
2680 for (pri = NUMPRI; pri--; ) 3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3018 {
3019 --pendingpri;
3020
2681 while (pendingcnt [pri]) 3021 while (pendingcnt [pendingpri])
2682 { 3022 {
2683 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2684 3024
2685 p->w->pending = 0; 3025 p->w->pending = 0;
2686 EV_CB_INVOKE (p->w, p->events); 3026 EV_CB_INVOKE (p->w, p->events);
2687 EV_FREQUENT_CHECK; 3027 EV_FREQUENT_CHECK;
2688 } 3028 }
3029 }
2689} 3030}
2690 3031
2691#if EV_IDLE_ENABLE 3032#if EV_IDLE_ENABLE
2692/* make idle watchers pending. this handles the "call-idle */ 3033/* make idle watchers pending. this handles the "call-idle */
2693/* only when higher priorities are idle" logic */ 3034/* only when higher priorities are idle" logic */
… …
2783{ 3124{
2784 EV_FREQUENT_CHECK; 3125 EV_FREQUENT_CHECK;
2785 3126
2786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3127 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2787 { 3128 {
2788 int feed_count = 0;
2789
2790 do 3129 do
2791 { 3130 {
2792 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3131 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2793 3132
2794 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3133 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2928 3267
2929 mn_now = ev_rt_now; 3268 mn_now = ev_rt_now;
2930 } 3269 }
2931} 3270}
2932 3271
2933void 3272int
2934ev_run (EV_P_ int flags) 3273ev_run (EV_P_ int flags)
2935{ 3274{
2936#if EV_FEATURE_API 3275#if EV_FEATURE_API
2937 ++loop_depth; 3276 ++loop_depth;
2938#endif 3277#endif
… …
3053 backend_poll (EV_A_ waittime); 3392 backend_poll (EV_A_ waittime);
3054 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3393 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3055 3394
3056 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3395 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3057 3396
3397 ECB_MEMORY_FENCE_ACQUIRE;
3058 if (pipe_write_skipped) 3398 if (pipe_write_skipped)
3059 { 3399 {
3060 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3400 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3061 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3401 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3062 } 3402 }
… …
3095 loop_done = EVBREAK_CANCEL; 3435 loop_done = EVBREAK_CANCEL;
3096 3436
3097#if EV_FEATURE_API 3437#if EV_FEATURE_API
3098 --loop_depth; 3438 --loop_depth;
3099#endif 3439#endif
3440
3441 return activecnt;
3100} 3442}
3101 3443
3102void 3444void
3103ev_break (EV_P_ int how) 3445ev_break (EV_P_ int how) EV_THROW
3104{ 3446{
3105 loop_done = how; 3447 loop_done = how;
3106} 3448}
3107 3449
3108void 3450void
3109ev_ref (EV_P) 3451ev_ref (EV_P) EV_THROW
3110{ 3452{
3111 ++activecnt; 3453 ++activecnt;
3112} 3454}
3113 3455
3114void 3456void
3115ev_unref (EV_P) 3457ev_unref (EV_P) EV_THROW
3116{ 3458{
3117 --activecnt; 3459 --activecnt;
3118} 3460}
3119 3461
3120void 3462void
3121ev_now_update (EV_P) 3463ev_now_update (EV_P) EV_THROW
3122{ 3464{
3123 time_update (EV_A_ 1e100); 3465 time_update (EV_A_ 1e100);
3124} 3466}
3125 3467
3126void 3468void
3127ev_suspend (EV_P) 3469ev_suspend (EV_P) EV_THROW
3128{ 3470{
3129 ev_now_update (EV_A); 3471 ev_now_update (EV_A);
3130} 3472}
3131 3473
3132void 3474void
3133ev_resume (EV_P) 3475ev_resume (EV_P) EV_THROW
3134{ 3476{
3135 ev_tstamp mn_prev = mn_now; 3477 ev_tstamp mn_prev = mn_now;
3136 3478
3137 ev_now_update (EV_A); 3479 ev_now_update (EV_A);
3138 timers_reschedule (EV_A_ mn_now - mn_prev); 3480 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3177 w->pending = 0; 3519 w->pending = 0;
3178 } 3520 }
3179} 3521}
3180 3522
3181int 3523int
3182ev_clear_pending (EV_P_ void *w) 3524ev_clear_pending (EV_P_ void *w) EV_THROW
3183{ 3525{
3184 W w_ = (W)w; 3526 W w_ = (W)w;
3185 int pending = w_->pending; 3527 int pending = w_->pending;
3186 3528
3187 if (expect_true (pending)) 3529 if (expect_true (pending))
… …
3220} 3562}
3221 3563
3222/*****************************************************************************/ 3564/*****************************************************************************/
3223 3565
3224void noinline 3566void noinline
3225ev_io_start (EV_P_ ev_io *w) 3567ev_io_start (EV_P_ ev_io *w) EV_THROW
3226{ 3568{
3227 int fd = w->fd; 3569 int fd = w->fd;
3228 3570
3229 if (expect_false (ev_is_active (w))) 3571 if (expect_false (ev_is_active (w)))
3230 return; 3572 return;
… …
3236 3578
3237 ev_start (EV_A_ (W)w, 1); 3579 ev_start (EV_A_ (W)w, 1);
3238 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3580 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3239 wlist_add (&anfds[fd].head, (WL)w); 3581 wlist_add (&anfds[fd].head, (WL)w);
3240 3582
3583 /* common bug, apparently */
3584 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3585
3241 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3586 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3242 w->events &= ~EV__IOFDSET; 3587 w->events &= ~EV__IOFDSET;
3243 3588
3244 EV_FREQUENT_CHECK; 3589 EV_FREQUENT_CHECK;
3245} 3590}
3246 3591
3247void noinline 3592void noinline
3248ev_io_stop (EV_P_ ev_io *w) 3593ev_io_stop (EV_P_ ev_io *w) EV_THROW
3249{ 3594{
3250 clear_pending (EV_A_ (W)w); 3595 clear_pending (EV_A_ (W)w);
3251 if (expect_false (!ev_is_active (w))) 3596 if (expect_false (!ev_is_active (w)))
3252 return; 3597 return;
3253 3598
… …
3262 3607
3263 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
3264} 3609}
3265 3610
3266void noinline 3611void noinline
3267ev_timer_start (EV_P_ ev_timer *w) 3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3268{ 3613{
3269 if (expect_false (ev_is_active (w))) 3614 if (expect_false (ev_is_active (w)))
3270 return; 3615 return;
3271 3616
3272 ev_at (w) += mn_now; 3617 ev_at (w) += mn_now;
… …
3286 3631
3287 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3632 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3288} 3633}
3289 3634
3290void noinline 3635void noinline
3291ev_timer_stop (EV_P_ ev_timer *w) 3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3292{ 3637{
3293 clear_pending (EV_A_ (W)w); 3638 clear_pending (EV_A_ (W)w);
3294 if (expect_false (!ev_is_active (w))) 3639 if (expect_false (!ev_is_active (w)))
3295 return; 3640 return;
3296 3641
… …
3316 3661
3317 EV_FREQUENT_CHECK; 3662 EV_FREQUENT_CHECK;
3318} 3663}
3319 3664
3320void noinline 3665void noinline
3321ev_timer_again (EV_P_ ev_timer *w) 3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3322{ 3667{
3323 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3324 3669
3325 clear_pending (EV_A_ (W)w); 3670 clear_pending (EV_A_ (W)w);
3326 3671
… …
3343 3688
3344 EV_FREQUENT_CHECK; 3689 EV_FREQUENT_CHECK;
3345} 3690}
3346 3691
3347ev_tstamp 3692ev_tstamp
3348ev_timer_remaining (EV_P_ ev_timer *w) 3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3349{ 3694{
3350 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3351} 3696}
3352 3697
3353#if EV_PERIODIC_ENABLE 3698#if EV_PERIODIC_ENABLE
3354void noinline 3699void noinline
3355ev_periodic_start (EV_P_ ev_periodic *w) 3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3356{ 3701{
3357 if (expect_false (ev_is_active (w))) 3702 if (expect_false (ev_is_active (w)))
3358 return; 3703 return;
3359 3704
3360 if (w->reschedule_cb) 3705 if (w->reschedule_cb)
… …
3380 3725
3381 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3726 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3382} 3727}
3383 3728
3384void noinline 3729void noinline
3385ev_periodic_stop (EV_P_ ev_periodic *w) 3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3386{ 3731{
3387 clear_pending (EV_A_ (W)w); 3732 clear_pending (EV_A_ (W)w);
3388 if (expect_false (!ev_is_active (w))) 3733 if (expect_false (!ev_is_active (w)))
3389 return; 3734 return;
3390 3735
… …
3408 3753
3409 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
3410} 3755}
3411 3756
3412void noinline 3757void noinline
3413ev_periodic_again (EV_P_ ev_periodic *w) 3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3414{ 3759{
3415 /* TODO: use adjustheap and recalculation */ 3760 /* TODO: use adjustheap and recalculation */
3416 ev_periodic_stop (EV_A_ w); 3761 ev_periodic_stop (EV_A_ w);
3417 ev_periodic_start (EV_A_ w); 3762 ev_periodic_start (EV_A_ w);
3418} 3763}
… …
3423#endif 3768#endif
3424 3769
3425#if EV_SIGNAL_ENABLE 3770#if EV_SIGNAL_ENABLE
3426 3771
3427void noinline 3772void noinline
3428ev_signal_start (EV_P_ ev_signal *w) 3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3429{ 3774{
3430 if (expect_false (ev_is_active (w))) 3775 if (expect_false (ev_is_active (w)))
3431 return; 3776 return;
3432 3777
3433 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3778 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3435#if EV_MULTIPLICITY 3780#if EV_MULTIPLICITY
3436 assert (("libev: a signal must not be attached to two different loops", 3781 assert (("libev: a signal must not be attached to two different loops",
3437 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3782 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3438 3783
3439 signals [w->signum - 1].loop = EV_A; 3784 signals [w->signum - 1].loop = EV_A;
3785 ECB_MEMORY_FENCE_RELEASE;
3440#endif 3786#endif
3441 3787
3442 EV_FREQUENT_CHECK; 3788 EV_FREQUENT_CHECK;
3443 3789
3444#if EV_USE_SIGNALFD 3790#if EV_USE_SIGNALFD
… …
3504 3850
3505 EV_FREQUENT_CHECK; 3851 EV_FREQUENT_CHECK;
3506} 3852}
3507 3853
3508void noinline 3854void noinline
3509ev_signal_stop (EV_P_ ev_signal *w) 3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3510{ 3856{
3511 clear_pending (EV_A_ (W)w); 3857 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 3858 if (expect_false (!ev_is_active (w)))
3513 return; 3859 return;
3514 3860
… …
3545#endif 3891#endif
3546 3892
3547#if EV_CHILD_ENABLE 3893#if EV_CHILD_ENABLE
3548 3894
3549void 3895void
3550ev_child_start (EV_P_ ev_child *w) 3896ev_child_start (EV_P_ ev_child *w) EV_THROW
3551{ 3897{
3552#if EV_MULTIPLICITY 3898#if EV_MULTIPLICITY
3553 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3899 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3554#endif 3900#endif
3555 if (expect_false (ev_is_active (w))) 3901 if (expect_false (ev_is_active (w)))
… …
3562 3908
3563 EV_FREQUENT_CHECK; 3909 EV_FREQUENT_CHECK;
3564} 3910}
3565 3911
3566void 3912void
3567ev_child_stop (EV_P_ ev_child *w) 3913ev_child_stop (EV_P_ ev_child *w) EV_THROW
3568{ 3914{
3569 clear_pending (EV_A_ (W)w); 3915 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 3916 if (expect_false (!ev_is_active (w)))
3571 return; 3917 return;
3572 3918
… …
3599# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3600 3946
3601static void noinline 3947static void noinline
3602infy_add (EV_P_ ev_stat *w) 3948infy_add (EV_P_ ev_stat *w)
3603{ 3949{
3604 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); 3950 w->wd = inotify_add_watch (fs_fd, w->path,
3951 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3952 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3953 | IN_DONT_FOLLOW | IN_MASK_ADD);
3605 3954
3606 if (w->wd >= 0) 3955 if (w->wd >= 0)
3607 { 3956 {
3608 struct statfs sfs; 3957 struct statfs sfs;
3609 3958
… …
3613 3962
3614 if (!fs_2625) 3963 if (!fs_2625)
3615 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3964 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3616 else if (!statfs (w->path, &sfs) 3965 else if (!statfs (w->path, &sfs)
3617 && (sfs.f_type == 0x1373 /* devfs */ 3966 && (sfs.f_type == 0x1373 /* devfs */
3967 || sfs.f_type == 0x4006 /* fat */
3968 || sfs.f_type == 0x4d44 /* msdos */
3618 || sfs.f_type == 0xEF53 /* ext2/3 */ 3969 || sfs.f_type == 0xEF53 /* ext2/3 */
3970 || sfs.f_type == 0x72b6 /* jffs2 */
3971 || sfs.f_type == 0x858458f6 /* ramfs */
3972 || sfs.f_type == 0x5346544e /* ntfs */
3619 || sfs.f_type == 0x3153464a /* jfs */ 3973 || sfs.f_type == 0x3153464a /* jfs */
3974 || sfs.f_type == 0x9123683e /* btrfs */
3620 || sfs.f_type == 0x52654973 /* reiser3 */ 3975 || sfs.f_type == 0x52654973 /* reiser3 */
3621 || sfs.f_type == 0x01021994 /* tempfs */ 3976 || sfs.f_type == 0x01021994 /* tmpfs */
3622 || sfs.f_type == 0x58465342 /* xfs */)) 3977 || sfs.f_type == 0x58465342 /* xfs */))
3623 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3978 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3624 else 3979 else
3625 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3980 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3626 } 3981 }
… …
3739} 4094}
3740 4095
3741inline_size int 4096inline_size int
3742infy_newfd (void) 4097infy_newfd (void)
3743{ 4098{
3744#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4099#if defined IN_CLOEXEC && defined IN_NONBLOCK
3745 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4100 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3746 if (fd >= 0) 4101 if (fd >= 0)
3747 return fd; 4102 return fd;
3748#endif 4103#endif
3749 return inotify_init (); 4104 return inotify_init ();
… …
3824#else 4179#else
3825# define EV_LSTAT(p,b) lstat (p, b) 4180# define EV_LSTAT(p,b) lstat (p, b)
3826#endif 4181#endif
3827 4182
3828void 4183void
3829ev_stat_stat (EV_P_ ev_stat *w) 4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3830{ 4185{
3831 if (lstat (w->path, &w->attr) < 0) 4186 if (lstat (w->path, &w->attr) < 0)
3832 w->attr.st_nlink = 0; 4187 w->attr.st_nlink = 0;
3833 else if (!w->attr.st_nlink) 4188 else if (!w->attr.st_nlink)
3834 w->attr.st_nlink = 1; 4189 w->attr.st_nlink = 1;
… …
3873 ev_feed_event (EV_A_ w, EV_STAT); 4228 ev_feed_event (EV_A_ w, EV_STAT);
3874 } 4229 }
3875} 4230}
3876 4231
3877void 4232void
3878ev_stat_start (EV_P_ ev_stat *w) 4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3879{ 4234{
3880 if (expect_false (ev_is_active (w))) 4235 if (expect_false (ev_is_active (w)))
3881 return; 4236 return;
3882 4237
3883 ev_stat_stat (EV_A_ w); 4238 ev_stat_stat (EV_A_ w);
… …
3904 4259
3905 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
3906} 4261}
3907 4262
3908void 4263void
3909ev_stat_stop (EV_P_ ev_stat *w) 4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3910{ 4265{
3911 clear_pending (EV_A_ (W)w); 4266 clear_pending (EV_A_ (W)w);
3912 if (expect_false (!ev_is_active (w))) 4267 if (expect_false (!ev_is_active (w)))
3913 return; 4268 return;
3914 4269
… …
3930} 4285}
3931#endif 4286#endif
3932 4287
3933#if EV_IDLE_ENABLE 4288#if EV_IDLE_ENABLE
3934void 4289void
3935ev_idle_start (EV_P_ ev_idle *w) 4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3936{ 4291{
3937 if (expect_false (ev_is_active (w))) 4292 if (expect_false (ev_is_active (w)))
3938 return; 4293 return;
3939 4294
3940 pri_adjust (EV_A_ (W)w); 4295 pri_adjust (EV_A_ (W)w);
… …
3953 4308
3954 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3955} 4310}
3956 4311
3957void 4312void
3958ev_idle_stop (EV_P_ ev_idle *w) 4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3959{ 4314{
3960 clear_pending (EV_A_ (W)w); 4315 clear_pending (EV_A_ (W)w);
3961 if (expect_false (!ev_is_active (w))) 4316 if (expect_false (!ev_is_active (w)))
3962 return; 4317 return;
3963 4318
… …
3977} 4332}
3978#endif 4333#endif
3979 4334
3980#if EV_PREPARE_ENABLE 4335#if EV_PREPARE_ENABLE
3981void 4336void
3982ev_prepare_start (EV_P_ ev_prepare *w) 4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3983{ 4338{
3984 if (expect_false (ev_is_active (w))) 4339 if (expect_false (ev_is_active (w)))
3985 return; 4340 return;
3986 4341
3987 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
… …
3992 4347
3993 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3994} 4349}
3995 4350
3996void 4351void
3997ev_prepare_stop (EV_P_ ev_prepare *w) 4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3998{ 4353{
3999 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
4000 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
4001 return; 4356 return;
4002 4357
… …
4015} 4370}
4016#endif 4371#endif
4017 4372
4018#if EV_CHECK_ENABLE 4373#if EV_CHECK_ENABLE
4019void 4374void
4020ev_check_start (EV_P_ ev_check *w) 4375ev_check_start (EV_P_ ev_check *w) EV_THROW
4021{ 4376{
4022 if (expect_false (ev_is_active (w))) 4377 if (expect_false (ev_is_active (w)))
4023 return; 4378 return;
4024 4379
4025 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
… …
4030 4385
4031 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
4032} 4387}
4033 4388
4034void 4389void
4035ev_check_stop (EV_P_ ev_check *w) 4390ev_check_stop (EV_P_ ev_check *w) EV_THROW
4036{ 4391{
4037 clear_pending (EV_A_ (W)w); 4392 clear_pending (EV_A_ (W)w);
4038 if (expect_false (!ev_is_active (w))) 4393 if (expect_false (!ev_is_active (w)))
4039 return; 4394 return;
4040 4395
… …
4053} 4408}
4054#endif 4409#endif
4055 4410
4056#if EV_EMBED_ENABLE 4411#if EV_EMBED_ENABLE
4057void noinline 4412void noinline
4058ev_embed_sweep (EV_P_ ev_embed *w) 4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4059{ 4414{
4060 ev_run (w->other, EVRUN_NOWAIT); 4415 ev_run (w->other, EVRUN_NOWAIT);
4061} 4416}
4062 4417
4063static void 4418static void
… …
4111 ev_idle_stop (EV_A_ idle); 4466 ev_idle_stop (EV_A_ idle);
4112} 4467}
4113#endif 4468#endif
4114 4469
4115void 4470void
4116ev_embed_start (EV_P_ ev_embed *w) 4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4117{ 4472{
4118 if (expect_false (ev_is_active (w))) 4473 if (expect_false (ev_is_active (w)))
4119 return; 4474 return;
4120 4475
4121 { 4476 {
… …
4142 4497
4143 EV_FREQUENT_CHECK; 4498 EV_FREQUENT_CHECK;
4144} 4499}
4145 4500
4146void 4501void
4147ev_embed_stop (EV_P_ ev_embed *w) 4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4148{ 4503{
4149 clear_pending (EV_A_ (W)w); 4504 clear_pending (EV_A_ (W)w);
4150 if (expect_false (!ev_is_active (w))) 4505 if (expect_false (!ev_is_active (w)))
4151 return; 4506 return;
4152 4507
… …
4162} 4517}
4163#endif 4518#endif
4164 4519
4165#if EV_FORK_ENABLE 4520#if EV_FORK_ENABLE
4166void 4521void
4167ev_fork_start (EV_P_ ev_fork *w) 4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4168{ 4523{
4169 if (expect_false (ev_is_active (w))) 4524 if (expect_false (ev_is_active (w)))
4170 return; 4525 return;
4171 4526
4172 EV_FREQUENT_CHECK; 4527 EV_FREQUENT_CHECK;
… …
4177 4532
4178 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
4179} 4534}
4180 4535
4181void 4536void
4182ev_fork_stop (EV_P_ ev_fork *w) 4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4183{ 4538{
4184 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
4185 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
4186 return; 4541 return;
4187 4542
… …
4200} 4555}
4201#endif 4556#endif
4202 4557
4203#if EV_CLEANUP_ENABLE 4558#if EV_CLEANUP_ENABLE
4204void 4559void
4205ev_cleanup_start (EV_P_ ev_cleanup *w) 4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4206{ 4561{
4207 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
4208 return; 4563 return;
4209 4564
4210 EV_FREQUENT_CHECK; 4565 EV_FREQUENT_CHECK;
… …
4217 ev_unref (EV_A); 4572 ev_unref (EV_A);
4218 EV_FREQUENT_CHECK; 4573 EV_FREQUENT_CHECK;
4219} 4574}
4220 4575
4221void 4576void
4222ev_cleanup_stop (EV_P_ ev_cleanup *w) 4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4223{ 4578{
4224 clear_pending (EV_A_ (W)w); 4579 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4580 if (expect_false (!ev_is_active (w)))
4226 return; 4581 return;
4227 4582
… …
4241} 4596}
4242#endif 4597#endif
4243 4598
4244#if EV_ASYNC_ENABLE 4599#if EV_ASYNC_ENABLE
4245void 4600void
4246ev_async_start (EV_P_ ev_async *w) 4601ev_async_start (EV_P_ ev_async *w) EV_THROW
4247{ 4602{
4248 if (expect_false (ev_is_active (w))) 4603 if (expect_false (ev_is_active (w)))
4249 return; 4604 return;
4250 4605
4251 w->sent = 0; 4606 w->sent = 0;
… …
4260 4615
4261 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
4262} 4617}
4263 4618
4264void 4619void
4265ev_async_stop (EV_P_ ev_async *w) 4620ev_async_stop (EV_P_ ev_async *w) EV_THROW
4266{ 4621{
4267 clear_pending (EV_A_ (W)w); 4622 clear_pending (EV_A_ (W)w);
4268 if (expect_false (!ev_is_active (w))) 4623 if (expect_false (!ev_is_active (w)))
4269 return; 4624 return;
4270 4625
… …
4281 4636
4282 EV_FREQUENT_CHECK; 4637 EV_FREQUENT_CHECK;
4283} 4638}
4284 4639
4285void 4640void
4286ev_async_send (EV_P_ ev_async *w) 4641ev_async_send (EV_P_ ev_async *w) EV_THROW
4287{ 4642{
4288 w->sent = 1; 4643 w->sent = 1;
4289 evpipe_write (EV_A_ &async_pending); 4644 evpipe_write (EV_A_ &async_pending);
4290} 4645}
4291#endif 4646#endif
… …
4328 4683
4329 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4684 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4330} 4685}
4331 4686
4332void 4687void
4333ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4688ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4334{ 4689{
4335 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4690 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4336 4691
4337 if (expect_false (!once)) 4692 if (expect_false (!once))
4338 { 4693 {
… …
4360 4715
4361/*****************************************************************************/ 4716/*****************************************************************************/
4362 4717
4363#if EV_WALK_ENABLE 4718#if EV_WALK_ENABLE
4364void ecb_cold 4719void ecb_cold
4365ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4720ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4366{ 4721{
4367 int i, j; 4722 int i, j;
4368 ev_watcher_list *wl, *wn; 4723 ev_watcher_list *wl, *wn;
4369 4724
4370 if (types & (EV_IO | EV_EMBED)) 4725 if (types & (EV_IO | EV_EMBED))

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