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Comparing libev/ev.c (file contents):
Revision 1.410 by root, Sat Feb 4 17:57:55 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")
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__
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")
582 #endif 645 #endif
583 #endif 646 #endif
584#endif 647#endif
585 648
586#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
587 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
588 #define ECB_MEMORY_FENCE __sync_synchronize () 664 #define ECB_MEMORY_FENCE __sync_synchronize ()
589 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
590 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
591 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 665 #elif _MSC_VER >= 1400 /* VC++ 2005 */
592 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 666 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 667 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594 #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 */
595 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 669 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596 #elif defined(_WIN32) 670 #elif defined _WIN32
597 #include <WinNT.h> 671 #include <WinNT.h>
598 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 672 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 673 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #include <mbarrier.h> 674 #include <mbarrier.h>
601 #define ECB_MEMORY_FENCE __machine_rw_barrier () 675 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
602 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 676 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603 #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)
604 #endif 695 #endif
605#endif 696#endif
606 697
607#ifndef ECB_MEMORY_FENCE 698#ifndef ECB_MEMORY_FENCE
608 #if !ECB_AVOID_PTHREADS 699 #if !ECB_AVOID_PTHREADS
… …
620 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 711 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
621 #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)
622 #endif 713 #endif
623#endif 714#endif
624 715
625#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 716#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
626 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 717 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627#endif 718#endif
628 719
629#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 720#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631#endif 722#endif
632 723
633/*****************************************************************************/ 724/*****************************************************************************/
634
635#define ECB_C99 (__STDC_VERSION__ >= 199901L)
636 725
637#if __cplusplus 726#if __cplusplus
638 #define ecb_inline static inline 727 #define ecb_inline static inline
639#elif ECB_GCC_VERSION(2,5) 728#elif ECB_GCC_VERSION(2,5)
640 #define ecb_inline static __inline__ 729 #define ecb_inline static __inline__
… …
679#elif ECB_GCC_VERSION(3,0) 768#elif ECB_GCC_VERSION(3,0)
680 #define ecb_decltype(x) __typeof(x) 769 #define ecb_decltype(x) __typeof(x)
681#endif 770#endif
682 771
683#define ecb_noinline ecb_attribute ((__noinline__)) 772#define ecb_noinline ecb_attribute ((__noinline__))
684#define ecb_noreturn ecb_attribute ((__noreturn__))
685#define ecb_unused ecb_attribute ((__unused__)) 773#define ecb_unused ecb_attribute ((__unused__))
686#define ecb_const ecb_attribute ((__const__)) 774#define ecb_const ecb_attribute ((__const__))
687#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
688 782
689#if ECB_GCC_VERSION(4,3) 783#if ECB_GCC_VERSION(4,3)
690 #define ecb_artificial ecb_attribute ((__artificial__)) 784 #define ecb_artificial ecb_attribute ((__artificial__))
691 #define ecb_hot ecb_attribute ((__hot__)) 785 #define ecb_hot ecb_attribute ((__hot__))
692 #define ecb_cold ecb_attribute ((__cold__)) 786 #define ecb_cold ecb_attribute ((__cold__))
… …
783 877
784 return r + ecb_ld32 (x); 878 return r + ecb_ld32 (x);
785 } 879 }
786#endif 880#endif
787 881
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
788ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
789ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
790{ 889{
791 return ( (x * 0x0802U & 0x22110U) 890 return ( (x * 0x0802U & 0x22110U)
792 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
876 ecb_inline void ecb_unreachable (void) ecb_noreturn; 975 ecb_inline void ecb_unreachable (void) ecb_noreturn;
877 ecb_inline void ecb_unreachable (void) { } 976 ecb_inline void ecb_unreachable (void) { }
878#endif 977#endif
879 978
880/* try to tell the compiler that some condition is definitely true */ 979/* try to tell the compiler that some condition is definitely true */
881#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
882 981
883ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
884ecb_inline unsigned char 983ecb_inline unsigned char
885ecb_byteorder_helper (void) 984ecb_byteorder_helper (void)
886{ 985{
887 const uint32_t u = 0x11223344; 986 /* the union code still generates code under pressure in gcc, */
888 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
889} 1006}
890 1007
891ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
892ecb_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; }
893ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
924 } 1041 }
925#else 1042#else
926 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
927#endif 1044#endif
928 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
929#endif 1240#endif
930 1241
931/* ECB.H END */ 1242/* ECB.H END */
932 1243
933#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1244#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1099{ 1410{
1100 write (STDERR_FILENO, msg, strlen (msg)); 1411 write (STDERR_FILENO, msg, strlen (msg));
1101} 1412}
1102#endif 1413#endif
1103 1414
1104static void (*syserr_cb)(const char *msg); 1415static void (*syserr_cb)(const char *msg) EV_THROW;
1105 1416
1106void ecb_cold 1417void ecb_cold
1107ev_set_syserr_cb (void (*cb)(const char *msg)) 1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1108{ 1419{
1109 syserr_cb = cb; 1420 syserr_cb = cb;
1110} 1421}
1111 1422
1112static void noinline ecb_cold 1423static void noinline ecb_cold
… …
1130 abort (); 1441 abort ();
1131 } 1442 }
1132} 1443}
1133 1444
1134static void * 1445static void *
1135ev_realloc_emul (void *ptr, long size) 1446ev_realloc_emul (void *ptr, long size) EV_THROW
1136{ 1447{
1137#if __GLIBC__
1138 return realloc (ptr, size);
1139#else
1140 /* some systems, notably openbsd and darwin, fail to properly 1448 /* some systems, notably openbsd and darwin, fail to properly
1141 * 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
1142 * 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.
1143 */ 1453 */
1144 1454
1145 if (size) 1455 if (size)
1146 return realloc (ptr, size); 1456 return realloc (ptr, size);
1147 1457
1148 free (ptr); 1458 free (ptr);
1149 return 0; 1459 return 0;
1150#endif
1151} 1460}
1152 1461
1153static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1154 1463
1155void ecb_cold 1464void ecb_cold
1156ev_set_allocator (void *(*cb)(void *ptr, long size)) 1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1157{ 1466{
1158 alloc = cb; 1467 alloc = cb;
1159} 1468}
1160 1469
1161inline_speed void * 1470inline_speed void *
… …
1278 1587
1279/*****************************************************************************/ 1588/*****************************************************************************/
1280 1589
1281#ifndef EV_HAVE_EV_TIME 1590#ifndef EV_HAVE_EV_TIME
1282ev_tstamp 1591ev_tstamp
1283ev_time (void) 1592ev_time (void) EV_THROW
1284{ 1593{
1285#if EV_USE_REALTIME 1594#if EV_USE_REALTIME
1286 if (expect_true (have_realtime)) 1595 if (expect_true (have_realtime))
1287 { 1596 {
1288 struct timespec ts; 1597 struct timespec ts;
… …
1312 return ev_time (); 1621 return ev_time ();
1313} 1622}
1314 1623
1315#if EV_MULTIPLICITY 1624#if EV_MULTIPLICITY
1316ev_tstamp 1625ev_tstamp
1317ev_now (EV_P) 1626ev_now (EV_P) EV_THROW
1318{ 1627{
1319 return ev_rt_now; 1628 return ev_rt_now;
1320} 1629}
1321#endif 1630#endif
1322 1631
1323void 1632void
1324ev_sleep (ev_tstamp delay) 1633ev_sleep (ev_tstamp delay) EV_THROW
1325{ 1634{
1326 if (delay > 0.) 1635 if (delay > 0.)
1327 { 1636 {
1328#if EV_USE_NANOSLEEP 1637#if EV_USE_NANOSLEEP
1329 struct timespec ts; 1638 struct timespec ts;
1330 1639
1331 EV_TS_SET (ts, delay); 1640 EV_TS_SET (ts, delay);
1332 nanosleep (&ts, 0); 1641 nanosleep (&ts, 0);
1333#elif defined(_WIN32) 1642#elif defined _WIN32
1334 Sleep ((unsigned long)(delay * 1e3)); 1643 Sleep ((unsigned long)(delay * 1e3));
1335#else 1644#else
1336 struct timeval tv; 1645 struct timeval tv;
1337 1646
1338 /* 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 */
… …
1410pendingcb (EV_P_ ev_prepare *w, int revents) 1719pendingcb (EV_P_ ev_prepare *w, int revents)
1411{ 1720{
1412} 1721}
1413 1722
1414void noinline 1723void noinline
1415ev_feed_event (EV_P_ void *w, int revents) 1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1416{ 1725{
1417 W w_ = (W)w; 1726 W w_ = (W)w;
1418 int pri = ABSPRI (w_); 1727 int pri = ABSPRI (w_);
1419 1728
1420 if (expect_false (w_->pending)) 1729 if (expect_false (w_->pending))
… …
1424 w_->pending = ++pendingcnt [pri]; 1733 w_->pending = ++pendingcnt [pri];
1425 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1734 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1426 pendings [pri][w_->pending - 1].w = w_; 1735 pendings [pri][w_->pending - 1].w = w_;
1427 pendings [pri][w_->pending - 1].events = revents; 1736 pendings [pri][w_->pending - 1].events = revents;
1428 } 1737 }
1738
1739 pendingpri = NUMPRI - 1;
1429} 1740}
1430 1741
1431inline_speed void 1742inline_speed void
1432feed_reverse (EV_P_ W w) 1743feed_reverse (EV_P_ W w)
1433{ 1744{
… …
1479 if (expect_true (!anfd->reify)) 1790 if (expect_true (!anfd->reify))
1480 fd_event_nocheck (EV_A_ fd, revents); 1791 fd_event_nocheck (EV_A_ fd, revents);
1481} 1792}
1482 1793
1483void 1794void
1484ev_feed_fd_event (EV_P_ int fd, int revents) 1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1485{ 1796{
1486 if (fd >= 0 && fd < anfdmax) 1797 if (fd >= 0 && fd < anfdmax)
1487 fd_event_nocheck (EV_A_ fd, revents); 1798 fd_event_nocheck (EV_A_ fd, revents);
1488} 1799}
1489 1800
… …
1808static void noinline ecb_cold 2119static void noinline ecb_cold
1809evpipe_init (EV_P) 2120evpipe_init (EV_P)
1810{ 2121{
1811 if (!ev_is_active (&pipe_w)) 2122 if (!ev_is_active (&pipe_w))
1812 { 2123 {
2124 int fds [2];
2125
1813# if EV_USE_EVENTFD 2126# if EV_USE_EVENTFD
2127 fds [0] = -1;
1814 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2128 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1815 if (evfd < 0 && errno == EINVAL) 2129 if (fds [1] < 0 && errno == EINVAL)
1816 evfd = eventfd (0, 0); 2130 fds [1] = eventfd (0, 0);
1817 2131
1818 if (evfd >= 0) 2132 if (fds [1] < 0)
2133# endif
1819 { 2134 {
2135 while (pipe (fds))
2136 ev_syserr ("(libev) error creating signal/async pipe");
2137
2138 fd_intern (fds [0]);
2139 }
2140
1820 evpipe [0] = -1; 2141 evpipe [0] = fds [0];
1821 fd_intern (evfd); /* doing it twice doesn't hurt */ 2142
1822 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));
1823 } 2193 }
1824 else 2194 else
1825# endif 2195#endif
1826 { 2196 {
1827 while (pipe (evpipe)) 2197#ifdef _WIN32
1828 ev_syserr ("(libev) error creating signal/async pipe"); 2198 WSABUF buf;
1829 2199 DWORD sent;
1830 fd_intern (evpipe [0]); 2200 buf.buf = &buf;
1831 fd_intern (evpipe [1]); 2201 buf.len = 1;
1832 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1833 } 2203#else
1834
1835 ev_io_start (EV_A_ &pipe_w);
1836 ev_unref (EV_A); /* watcher should not keep loop alive */
1837 }
1838}
1839
1840inline_speed void
1841evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1842{
1843 if (expect_true (*flag))
1844 return;
1845
1846 *flag = 1;
1847
1848 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1849
1850 pipe_write_skipped = 1;
1851
1852 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1853
1854 if (pipe_write_wanted)
1855 {
1856 int old_errno;
1857
1858 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1859
1860 old_errno = errno; /* save errno because write will clobber it */
1861
1862#if EV_USE_EVENTFD
1863 if (evfd >= 0)
1864 {
1865 uint64_t counter = 1;
1866 write (evfd, &counter, sizeof (uint64_t));
1867 }
1868 else
1869#endif
1870 {
1871 /* win32 people keep sending patches that change this write() to send() */
1872 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1873 /* so when you think this write should be a send instead, please find out */
1874 /* where your send() is from - it's definitely not the microsoft send, and */
1875 /* tell me. thank you. */
1876 write (evpipe [1], &(evpipe [1]), 1); 2204 write (evpipe [1], &(evpipe [1]), 1);
2205#endif
1877 } 2206 }
1878 2207
1879 errno = old_errno; 2208 errno = old_errno;
1880 } 2209 }
1881} 2210}
… …
1888 int i; 2217 int i;
1889 2218
1890 if (revents & EV_READ) 2219 if (revents & EV_READ)
1891 { 2220 {
1892#if EV_USE_EVENTFD 2221#if EV_USE_EVENTFD
1893 if (evfd >= 0) 2222 if (evpipe [0] < 0)
1894 { 2223 {
1895 uint64_t counter; 2224 uint64_t counter;
1896 read (evfd, &counter, sizeof (uint64_t)); 2225 read (evpipe [1], &counter, sizeof (uint64_t));
1897 } 2226 }
1898 else 2227 else
1899#endif 2228#endif
1900 { 2229 {
1901 char dummy; 2230 char dummy[4];
1902 /* 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
1903 read (evpipe [0], &dummy, 1); 2239 read (evpipe [0], &dummy, sizeof (dummy));
2240#endif
1904 } 2241 }
1905 } 2242 }
1906 2243
1907 pipe_write_skipped = 0; 2244 pipe_write_skipped = 0;
2245
2246 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1908 2247
1909#if EV_SIGNAL_ENABLE 2248#if EV_SIGNAL_ENABLE
1910 if (sig_pending) 2249 if (sig_pending)
1911 { 2250 {
1912 sig_pending = 0; 2251 sig_pending = 0;
2252
2253 ECB_MEMORY_FENCE;
1913 2254
1914 for (i = EV_NSIG - 1; i--; ) 2255 for (i = EV_NSIG - 1; i--; )
1915 if (expect_false (signals [i].pending)) 2256 if (expect_false (signals [i].pending))
1916 ev_feed_signal_event (EV_A_ i + 1); 2257 ev_feed_signal_event (EV_A_ i + 1);
1917 } 2258 }
… …
1919 2260
1920#if EV_ASYNC_ENABLE 2261#if EV_ASYNC_ENABLE
1921 if (async_pending) 2262 if (async_pending)
1922 { 2263 {
1923 async_pending = 0; 2264 async_pending = 0;
2265
2266 ECB_MEMORY_FENCE;
1924 2267
1925 for (i = asynccnt; i--; ) 2268 for (i = asynccnt; i--; )
1926 if (asyncs [i]->sent) 2269 if (asyncs [i]->sent)
1927 { 2270 {
1928 asyncs [i]->sent = 0; 2271 asyncs [i]->sent = 0;
2272 ECB_MEMORY_FENCE_RELEASE;
1929 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2273 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1930 } 2274 }
1931 } 2275 }
1932#endif 2276#endif
1933} 2277}
1934 2278
1935/*****************************************************************************/ 2279/*****************************************************************************/
1936 2280
1937void 2281void
1938ev_feed_signal (int signum) 2282ev_feed_signal (int signum) EV_THROW
1939{ 2283{
1940#if EV_MULTIPLICITY 2284#if EV_MULTIPLICITY
2285 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE;
1941 EV_P = signals [signum - 1].loop; 2287 EV_A = signals [signum - 1].loop;
1942 2288
1943 if (!EV_A) 2289 if (!EV_A)
1944 return; 2290 return;
1945#endif 2291#endif
1946 2292
1947 if (!ev_active (&pipe_w))
1948 return;
1949
1950 signals [signum - 1].pending = 1; 2293 signals [signum - 1].pending = 1;
1951 evpipe_write (EV_A_ &sig_pending); 2294 evpipe_write (EV_A_ &sig_pending);
1952} 2295}
1953 2296
1954static void 2297static void
… …
1960 2303
1961 ev_feed_signal (signum); 2304 ev_feed_signal (signum);
1962} 2305}
1963 2306
1964void noinline 2307void noinline
1965ev_feed_signal_event (EV_P_ int signum) 2308ev_feed_signal_event (EV_P_ int signum) EV_THROW
1966{ 2309{
1967 WL w; 2310 WL w;
1968 2311
1969 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2312 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1970 return; 2313 return;
1971 2314
1972 --signum; 2315 --signum;
1973 2316
1974#if EV_MULTIPLICITY 2317#if EV_MULTIPLICITY
… …
1978 if (expect_false (signals [signum].loop != EV_A)) 2321 if (expect_false (signals [signum].loop != EV_A))
1979 return; 2322 return;
1980#endif 2323#endif
1981 2324
1982 signals [signum].pending = 0; 2325 signals [signum].pending = 0;
2326 ECB_MEMORY_FENCE_RELEASE;
1983 2327
1984 for (w = signals [signum].head; w; w = w->next) 2328 for (w = signals [signum].head; w; w = w->next)
1985 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2329 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1986} 2330}
1987 2331
… …
2086#if EV_USE_SELECT 2430#if EV_USE_SELECT
2087# include "ev_select.c" 2431# include "ev_select.c"
2088#endif 2432#endif
2089 2433
2090int ecb_cold 2434int ecb_cold
2091ev_version_major (void) 2435ev_version_major (void) EV_THROW
2092{ 2436{
2093 return EV_VERSION_MAJOR; 2437 return EV_VERSION_MAJOR;
2094} 2438}
2095 2439
2096int ecb_cold 2440int ecb_cold
2097ev_version_minor (void) 2441ev_version_minor (void) EV_THROW
2098{ 2442{
2099 return EV_VERSION_MINOR; 2443 return EV_VERSION_MINOR;
2100} 2444}
2101 2445
2102/* 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 */
… …
2110 || getgid () != getegid (); 2454 || getgid () != getegid ();
2111#endif 2455#endif
2112} 2456}
2113 2457
2114unsigned int ecb_cold 2458unsigned int ecb_cold
2115ev_supported_backends (void) 2459ev_supported_backends (void) EV_THROW
2116{ 2460{
2117 unsigned int flags = 0; 2461 unsigned int flags = 0;
2118 2462
2119 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2120 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2124 2468
2125 return flags; 2469 return flags;
2126} 2470}
2127 2471
2128unsigned int ecb_cold 2472unsigned int ecb_cold
2129ev_recommended_backends (void) 2473ev_recommended_backends (void) EV_THROW
2130{ 2474{
2131 unsigned int flags = ev_supported_backends (); 2475 unsigned int flags = ev_supported_backends ();
2132 2476
2133#ifndef __NetBSD__ 2477#ifndef __NetBSD__
2134 /* kqueue is borked on everything but netbsd apparently */ 2478 /* kqueue is borked on everything but netbsd apparently */
… …
2146 2490
2147 return flags; 2491 return flags;
2148} 2492}
2149 2493
2150unsigned int ecb_cold 2494unsigned int ecb_cold
2151ev_embeddable_backends (void) 2495ev_embeddable_backends (void) EV_THROW
2152{ 2496{
2153 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2154 2498
2155 /* 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 */
2156 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 */
… …
2158 2502
2159 return flags; 2503 return flags;
2160} 2504}
2161 2505
2162unsigned int 2506unsigned int
2163ev_backend (EV_P) 2507ev_backend (EV_P) EV_THROW
2164{ 2508{
2165 return backend; 2509 return backend;
2166} 2510}
2167 2511
2168#if EV_FEATURE_API 2512#if EV_FEATURE_API
2169unsigned int 2513unsigned int
2170ev_iteration (EV_P) 2514ev_iteration (EV_P) EV_THROW
2171{ 2515{
2172 return loop_count; 2516 return loop_count;
2173} 2517}
2174 2518
2175unsigned int 2519unsigned int
2176ev_depth (EV_P) 2520ev_depth (EV_P) EV_THROW
2177{ 2521{
2178 return loop_depth; 2522 return loop_depth;
2179} 2523}
2180 2524
2181void 2525void
2182ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2183{ 2527{
2184 io_blocktime = interval; 2528 io_blocktime = interval;
2185} 2529}
2186 2530
2187void 2531void
2188ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2533{
2190 timeout_blocktime = interval; 2534 timeout_blocktime = interval;
2191} 2535}
2192 2536
2193void 2537void
2194ev_set_userdata (EV_P_ void *data) 2538ev_set_userdata (EV_P_ void *data) EV_THROW
2195{ 2539{
2196 userdata = data; 2540 userdata = data;
2197} 2541}
2198 2542
2199void * 2543void *
2200ev_userdata (EV_P) 2544ev_userdata (EV_P) EV_THROW
2201{ 2545{
2202 return userdata; 2546 return userdata;
2203} 2547}
2204 2548
2205void 2549void
2206ev_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
2207{ 2551{
2208 invoke_cb = invoke_pending_cb; 2552 invoke_cb = invoke_pending_cb;
2209} 2553}
2210 2554
2211void 2555void
2212ev_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
2213{ 2557{
2214 release_cb = release; 2558 release_cb = release;
2215 acquire_cb = acquire; 2559 acquire_cb = acquire;
2216} 2560}
2217#endif 2561#endif
2218 2562
2219/* initialise a loop structure, must be zero-initialised */ 2563/* initialise a loop structure, must be zero-initialised */
2220static void noinline ecb_cold 2564static void noinline ecb_cold
2221loop_init (EV_P_ unsigned int flags) 2565loop_init (EV_P_ unsigned int flags) EV_THROW
2222{ 2566{
2223 if (!backend) 2567 if (!backend)
2224 { 2568 {
2225 origflags = flags; 2569 origflags = flags;
2226 2570
… …
2271#if EV_ASYNC_ENABLE 2615#if EV_ASYNC_ENABLE
2272 async_pending = 0; 2616 async_pending = 0;
2273#endif 2617#endif
2274 pipe_write_skipped = 0; 2618 pipe_write_skipped = 0;
2275 pipe_write_wanted = 0; 2619 pipe_write_wanted = 0;
2620 evpipe [0] = -1;
2621 evpipe [1] = -1;
2276#if EV_USE_INOTIFY 2622#if EV_USE_INOTIFY
2277 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2623 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2278#endif 2624#endif
2279#if EV_USE_SIGNALFD 2625#if EV_USE_SIGNALFD
2280 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2626 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2331 EV_INVOKE_PENDING; 2677 EV_INVOKE_PENDING;
2332 } 2678 }
2333#endif 2679#endif
2334 2680
2335#if EV_CHILD_ENABLE 2681#if EV_CHILD_ENABLE
2336 if (ev_is_active (&childev)) 2682 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2337 { 2683 {
2338 ev_ref (EV_A); /* child watcher */ 2684 ev_ref (EV_A); /* child watcher */
2339 ev_signal_stop (EV_A_ &childev); 2685 ev_signal_stop (EV_A_ &childev);
2340 } 2686 }
2341#endif 2687#endif
… …
2343 if (ev_is_active (&pipe_w)) 2689 if (ev_is_active (&pipe_w))
2344 { 2690 {
2345 /*ev_ref (EV_A);*/ 2691 /*ev_ref (EV_A);*/
2346 /*ev_io_stop (EV_A_ &pipe_w);*/ 2692 /*ev_io_stop (EV_A_ &pipe_w);*/
2347 2693
2348#if EV_USE_EVENTFD
2349 if (evfd >= 0)
2350 close (evfd);
2351#endif
2352
2353 if (evpipe [0] >= 0)
2354 {
2355 EV_WIN32_CLOSE_FD (evpipe [0]); 2694 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2356 EV_WIN32_CLOSE_FD (evpipe [1]); 2695 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2357 }
2358 } 2696 }
2359 2697
2360#if EV_USE_SIGNALFD 2698#if EV_USE_SIGNALFD
2361 if (ev_is_active (&sigfd_w)) 2699 if (ev_is_active (&sigfd_w))
2362 close (sigfd); 2700 close (sigfd);
… …
2448#endif 2786#endif
2449#if EV_USE_INOTIFY 2787#if EV_USE_INOTIFY
2450 infy_fork (EV_A); 2788 infy_fork (EV_A);
2451#endif 2789#endif
2452 2790
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2453 if (ev_is_active (&pipe_w)) 2792 if (ev_is_active (&pipe_w))
2454 { 2793 {
2455 /* 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 */
2456 2795
2457 ev_ref (EV_A); 2796 ev_ref (EV_A);
2458 ev_io_stop (EV_A_ &pipe_w); 2797 ev_io_stop (EV_A_ &pipe_w);
2459 2798
2460#if EV_USE_EVENTFD
2461 if (evfd >= 0)
2462 close (evfd);
2463#endif
2464
2465 if (evpipe [0] >= 0) 2799 if (evpipe [0] >= 0)
2466 {
2467 EV_WIN32_CLOSE_FD (evpipe [0]); 2800 EV_WIN32_CLOSE_FD (evpipe [0]);
2468 EV_WIN32_CLOSE_FD (evpipe [1]);
2469 }
2470 2801
2471#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2472 evpipe_init (EV_A); 2802 evpipe_init (EV_A);
2473 /* now iterate over everything, in case we missed something */ 2803 /* iterate over everything, in case we missed something before */
2474 pipecb (EV_A_ &pipe_w, EV_READ); 2804 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2475#endif
2476 } 2805 }
2806#endif
2477 2807
2478 postfork = 0; 2808 postfork = 0;
2479} 2809}
2480 2810
2481#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
2482 2812
2483struct ev_loop * ecb_cold 2813struct ev_loop * ecb_cold
2484ev_loop_new (unsigned int flags) 2814ev_loop_new (unsigned int flags) EV_THROW
2485{ 2815{
2486 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2487 2817
2488 memset (EV_A, 0, sizeof (struct ev_loop)); 2818 memset (EV_A, 0, sizeof (struct ev_loop));
2489 loop_init (EV_A_ flags); 2819 loop_init (EV_A_ flags);
… …
2533} 2863}
2534#endif 2864#endif
2535 2865
2536#if EV_FEATURE_API 2866#if EV_FEATURE_API
2537void ecb_cold 2867void ecb_cold
2538ev_verify (EV_P) 2868ev_verify (EV_P) EV_THROW
2539{ 2869{
2540#if EV_VERIFY 2870#if EV_VERIFY
2541 int i; 2871 int i;
2542 WL w; 2872 WL w, w2;
2543 2873
2544 assert (activecnt >= -1); 2874 assert (activecnt >= -1);
2545 2875
2546 assert (fdchangemax >= fdchangecnt); 2876 assert (fdchangemax >= fdchangecnt);
2547 for (i = 0; i < fdchangecnt; ++i) 2877 for (i = 0; i < fdchangecnt; ++i)
2548 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2549 2879
2550 assert (anfdmax >= 0); 2880 assert (anfdmax >= 0);
2551 for (i = 0; i < anfdmax; ++i) 2881 for (i = 0; i < anfdmax; ++i)
2882 {
2883 int j = 0;
2884
2552 for (w = anfds [i].head; w; w = w->next) 2885 for (w = w2 = anfds [i].head; w; w = w->next)
2553 { 2886 {
2554 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
2555 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));
2556 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));
2557 } 2897 }
2898 }
2558 2899
2559 assert (timermax >= timercnt); 2900 assert (timermax >= timercnt);
2560 verify_heap (EV_A_ timers, timercnt); 2901 verify_heap (EV_A_ timers, timercnt);
2561 2902
2562#if EV_PERIODIC_ENABLE 2903#if EV_PERIODIC_ENABLE
… …
2612#if EV_MULTIPLICITY 2953#if EV_MULTIPLICITY
2613struct ev_loop * ecb_cold 2954struct ev_loop * ecb_cold
2614#else 2955#else
2615int 2956int
2616#endif 2957#endif
2617ev_default_loop (unsigned int flags) 2958ev_default_loop (unsigned int flags) EV_THROW
2618{ 2959{
2619 if (!ev_default_loop_ptr) 2960 if (!ev_default_loop_ptr)
2620 { 2961 {
2621#if EV_MULTIPLICITY 2962#if EV_MULTIPLICITY
2622 EV_P = ev_default_loop_ptr = &default_loop_struct; 2963 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2641 2982
2642 return ev_default_loop_ptr; 2983 return ev_default_loop_ptr;
2643} 2984}
2644 2985
2645void 2986void
2646ev_loop_fork (EV_P) 2987ev_loop_fork (EV_P) EV_THROW
2647{ 2988{
2648 postfork = 1; /* must be in line with ev_default_fork */ 2989 postfork = 1;
2649} 2990}
2650 2991
2651/*****************************************************************************/ 2992/*****************************************************************************/
2652 2993
2653void 2994void
… …
2655{ 2996{
2656 EV_CB_INVOKE ((W)w, revents); 2997 EV_CB_INVOKE ((W)w, revents);
2657} 2998}
2658 2999
2659unsigned int 3000unsigned int
2660ev_pending_count (EV_P) 3001ev_pending_count (EV_P) EV_THROW
2661{ 3002{
2662 int pri; 3003 int pri;
2663 unsigned int count = 0; 3004 unsigned int count = 0;
2664 3005
2665 for (pri = NUMPRI; pri--; ) 3006 for (pri = NUMPRI; pri--; )
… …
2669} 3010}
2670 3011
2671void noinline 3012void noinline
2672ev_invoke_pending (EV_P) 3013ev_invoke_pending (EV_P)
2673{ 3014{
2674 int pri; 3015 pendingpri = NUMPRI;
2675 3016
2676 for (pri = NUMPRI; pri--; ) 3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3018 {
3019 --pendingpri;
3020
2677 while (pendingcnt [pri]) 3021 while (pendingcnt [pendingpri])
2678 { 3022 {
2679 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2680 3024
2681 p->w->pending = 0; 3025 p->w->pending = 0;
2682 EV_CB_INVOKE (p->w, p->events); 3026 EV_CB_INVOKE (p->w, p->events);
2683 EV_FREQUENT_CHECK; 3027 EV_FREQUENT_CHECK;
2684 } 3028 }
3029 }
2685} 3030}
2686 3031
2687#if EV_IDLE_ENABLE 3032#if EV_IDLE_ENABLE
2688/* make idle watchers pending. this handles the "call-idle */ 3033/* make idle watchers pending. this handles the "call-idle */
2689/* only when higher priorities are idle" logic */ 3034/* only when higher priorities are idle" logic */
… …
2779{ 3124{
2780 EV_FREQUENT_CHECK; 3125 EV_FREQUENT_CHECK;
2781 3126
2782 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3127 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2783 { 3128 {
2784 int feed_count = 0;
2785
2786 do 3129 do
2787 { 3130 {
2788 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3131 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2789 3132
2790 /*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)));*/
… …
2924 3267
2925 mn_now = ev_rt_now; 3268 mn_now = ev_rt_now;
2926 } 3269 }
2927} 3270}
2928 3271
2929void 3272int
2930ev_run (EV_P_ int flags) 3273ev_run (EV_P_ int flags)
2931{ 3274{
2932#if EV_FEATURE_API 3275#if EV_FEATURE_API
2933 ++loop_depth; 3276 ++loop_depth;
2934#endif 3277#endif
… …
3049 backend_poll (EV_A_ waittime); 3392 backend_poll (EV_A_ waittime);
3050 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3393 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3051 3394
3052 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3395 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3053 3396
3397 ECB_MEMORY_FENCE_ACQUIRE;
3054 if (pipe_write_skipped) 3398 if (pipe_write_skipped)
3055 { 3399 {
3056 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)));
3057 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3401 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3058 } 3402 }
… …
3091 loop_done = EVBREAK_CANCEL; 3435 loop_done = EVBREAK_CANCEL;
3092 3436
3093#if EV_FEATURE_API 3437#if EV_FEATURE_API
3094 --loop_depth; 3438 --loop_depth;
3095#endif 3439#endif
3440
3441 return activecnt;
3096} 3442}
3097 3443
3098void 3444void
3099ev_break (EV_P_ int how) 3445ev_break (EV_P_ int how) EV_THROW
3100{ 3446{
3101 loop_done = how; 3447 loop_done = how;
3102} 3448}
3103 3449
3104void 3450void
3105ev_ref (EV_P) 3451ev_ref (EV_P) EV_THROW
3106{ 3452{
3107 ++activecnt; 3453 ++activecnt;
3108} 3454}
3109 3455
3110void 3456void
3111ev_unref (EV_P) 3457ev_unref (EV_P) EV_THROW
3112{ 3458{
3113 --activecnt; 3459 --activecnt;
3114} 3460}
3115 3461
3116void 3462void
3117ev_now_update (EV_P) 3463ev_now_update (EV_P) EV_THROW
3118{ 3464{
3119 time_update (EV_A_ 1e100); 3465 time_update (EV_A_ 1e100);
3120} 3466}
3121 3467
3122void 3468void
3123ev_suspend (EV_P) 3469ev_suspend (EV_P) EV_THROW
3124{ 3470{
3125 ev_now_update (EV_A); 3471 ev_now_update (EV_A);
3126} 3472}
3127 3473
3128void 3474void
3129ev_resume (EV_P) 3475ev_resume (EV_P) EV_THROW
3130{ 3476{
3131 ev_tstamp mn_prev = mn_now; 3477 ev_tstamp mn_prev = mn_now;
3132 3478
3133 ev_now_update (EV_A); 3479 ev_now_update (EV_A);
3134 timers_reschedule (EV_A_ mn_now - mn_prev); 3480 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3173 w->pending = 0; 3519 w->pending = 0;
3174 } 3520 }
3175} 3521}
3176 3522
3177int 3523int
3178ev_clear_pending (EV_P_ void *w) 3524ev_clear_pending (EV_P_ void *w) EV_THROW
3179{ 3525{
3180 W w_ = (W)w; 3526 W w_ = (W)w;
3181 int pending = w_->pending; 3527 int pending = w_->pending;
3182 3528
3183 if (expect_true (pending)) 3529 if (expect_true (pending))
… …
3216} 3562}
3217 3563
3218/*****************************************************************************/ 3564/*****************************************************************************/
3219 3565
3220void noinline 3566void noinline
3221ev_io_start (EV_P_ ev_io *w) 3567ev_io_start (EV_P_ ev_io *w) EV_THROW
3222{ 3568{
3223 int fd = w->fd; 3569 int fd = w->fd;
3224 3570
3225 if (expect_false (ev_is_active (w))) 3571 if (expect_false (ev_is_active (w)))
3226 return; 3572 return;
… …
3232 3578
3233 ev_start (EV_A_ (W)w, 1); 3579 ev_start (EV_A_ (W)w, 1);
3234 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3580 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3235 wlist_add (&anfds[fd].head, (WL)w); 3581 wlist_add (&anfds[fd].head, (WL)w);
3236 3582
3583 /* common bug, apparently */
3584 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3585
3237 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);
3238 w->events &= ~EV__IOFDSET; 3587 w->events &= ~EV__IOFDSET;
3239 3588
3240 EV_FREQUENT_CHECK; 3589 EV_FREQUENT_CHECK;
3241} 3590}
3242 3591
3243void noinline 3592void noinline
3244ev_io_stop (EV_P_ ev_io *w) 3593ev_io_stop (EV_P_ ev_io *w) EV_THROW
3245{ 3594{
3246 clear_pending (EV_A_ (W)w); 3595 clear_pending (EV_A_ (W)w);
3247 if (expect_false (!ev_is_active (w))) 3596 if (expect_false (!ev_is_active (w)))
3248 return; 3597 return;
3249 3598
… …
3258 3607
3259 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
3260} 3609}
3261 3610
3262void noinline 3611void noinline
3263ev_timer_start (EV_P_ ev_timer *w) 3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3264{ 3613{
3265 if (expect_false (ev_is_active (w))) 3614 if (expect_false (ev_is_active (w)))
3266 return; 3615 return;
3267 3616
3268 ev_at (w) += mn_now; 3617 ev_at (w) += mn_now;
… …
3282 3631
3283 /*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));*/
3284} 3633}
3285 3634
3286void noinline 3635void noinline
3287ev_timer_stop (EV_P_ ev_timer *w) 3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3288{ 3637{
3289 clear_pending (EV_A_ (W)w); 3638 clear_pending (EV_A_ (W)w);
3290 if (expect_false (!ev_is_active (w))) 3639 if (expect_false (!ev_is_active (w)))
3291 return; 3640 return;
3292 3641
… …
3312 3661
3313 EV_FREQUENT_CHECK; 3662 EV_FREQUENT_CHECK;
3314} 3663}
3315 3664
3316void noinline 3665void noinline
3317ev_timer_again (EV_P_ ev_timer *w) 3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3318{ 3667{
3319 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3320 3669
3321 clear_pending (EV_A_ (W)w); 3670 clear_pending (EV_A_ (W)w);
3322 3671
… …
3339 3688
3340 EV_FREQUENT_CHECK; 3689 EV_FREQUENT_CHECK;
3341} 3690}
3342 3691
3343ev_tstamp 3692ev_tstamp
3344ev_timer_remaining (EV_P_ ev_timer *w) 3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3345{ 3694{
3346 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3347} 3696}
3348 3697
3349#if EV_PERIODIC_ENABLE 3698#if EV_PERIODIC_ENABLE
3350void noinline 3699void noinline
3351ev_periodic_start (EV_P_ ev_periodic *w) 3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3352{ 3701{
3353 if (expect_false (ev_is_active (w))) 3702 if (expect_false (ev_is_active (w)))
3354 return; 3703 return;
3355 3704
3356 if (w->reschedule_cb) 3705 if (w->reschedule_cb)
… …
3376 3725
3377 /*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));*/
3378} 3727}
3379 3728
3380void noinline 3729void noinline
3381ev_periodic_stop (EV_P_ ev_periodic *w) 3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3382{ 3731{
3383 clear_pending (EV_A_ (W)w); 3732 clear_pending (EV_A_ (W)w);
3384 if (expect_false (!ev_is_active (w))) 3733 if (expect_false (!ev_is_active (w)))
3385 return; 3734 return;
3386 3735
… …
3404 3753
3405 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
3406} 3755}
3407 3756
3408void noinline 3757void noinline
3409ev_periodic_again (EV_P_ ev_periodic *w) 3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3410{ 3759{
3411 /* TODO: use adjustheap and recalculation */ 3760 /* TODO: use adjustheap and recalculation */
3412 ev_periodic_stop (EV_A_ w); 3761 ev_periodic_stop (EV_A_ w);
3413 ev_periodic_start (EV_A_ w); 3762 ev_periodic_start (EV_A_ w);
3414} 3763}
… …
3419#endif 3768#endif
3420 3769
3421#if EV_SIGNAL_ENABLE 3770#if EV_SIGNAL_ENABLE
3422 3771
3423void noinline 3772void noinline
3424ev_signal_start (EV_P_ ev_signal *w) 3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3425{ 3774{
3426 if (expect_false (ev_is_active (w))) 3775 if (expect_false (ev_is_active (w)))
3427 return; 3776 return;
3428 3777
3429 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));
… …
3431#if EV_MULTIPLICITY 3780#if EV_MULTIPLICITY
3432 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",
3433 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3782 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3434 3783
3435 signals [w->signum - 1].loop = EV_A; 3784 signals [w->signum - 1].loop = EV_A;
3785 ECB_MEMORY_FENCE_RELEASE;
3436#endif 3786#endif
3437 3787
3438 EV_FREQUENT_CHECK; 3788 EV_FREQUENT_CHECK;
3439 3789
3440#if EV_USE_SIGNALFD 3790#if EV_USE_SIGNALFD
… …
3500 3850
3501 EV_FREQUENT_CHECK; 3851 EV_FREQUENT_CHECK;
3502} 3852}
3503 3853
3504void noinline 3854void noinline
3505ev_signal_stop (EV_P_ ev_signal *w) 3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3506{ 3856{
3507 clear_pending (EV_A_ (W)w); 3857 clear_pending (EV_A_ (W)w);
3508 if (expect_false (!ev_is_active (w))) 3858 if (expect_false (!ev_is_active (w)))
3509 return; 3859 return;
3510 3860
… …
3541#endif 3891#endif
3542 3892
3543#if EV_CHILD_ENABLE 3893#if EV_CHILD_ENABLE
3544 3894
3545void 3895void
3546ev_child_start (EV_P_ ev_child *w) 3896ev_child_start (EV_P_ ev_child *w) EV_THROW
3547{ 3897{
3548#if EV_MULTIPLICITY 3898#if EV_MULTIPLICITY
3549 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));
3550#endif 3900#endif
3551 if (expect_false (ev_is_active (w))) 3901 if (expect_false (ev_is_active (w)))
… …
3558 3908
3559 EV_FREQUENT_CHECK; 3909 EV_FREQUENT_CHECK;
3560} 3910}
3561 3911
3562void 3912void
3563ev_child_stop (EV_P_ ev_child *w) 3913ev_child_stop (EV_P_ ev_child *w) EV_THROW
3564{ 3914{
3565 clear_pending (EV_A_ (W)w); 3915 clear_pending (EV_A_ (W)w);
3566 if (expect_false (!ev_is_active (w))) 3916 if (expect_false (!ev_is_active (w)))
3567 return; 3917 return;
3568 3918
… …
3595# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3596 3946
3597static void noinline 3947static void noinline
3598infy_add (EV_P_ ev_stat *w) 3948infy_add (EV_P_ ev_stat *w)
3599{ 3949{
3600 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);
3601 3954
3602 if (w->wd >= 0) 3955 if (w->wd >= 0)
3603 { 3956 {
3604 struct statfs sfs; 3957 struct statfs sfs;
3605 3958
… …
3609 3962
3610 if (!fs_2625) 3963 if (!fs_2625)
3611 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3964 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3612 else if (!statfs (w->path, &sfs) 3965 else if (!statfs (w->path, &sfs)
3613 && (sfs.f_type == 0x1373 /* devfs */ 3966 && (sfs.f_type == 0x1373 /* devfs */
3967 || sfs.f_type == 0x4006 /* fat */
3968 || sfs.f_type == 0x4d44 /* msdos */
3614 || 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 */
3615 || sfs.f_type == 0x3153464a /* jfs */ 3973 || sfs.f_type == 0x3153464a /* jfs */
3974 || sfs.f_type == 0x9123683e /* btrfs */
3616 || sfs.f_type == 0x52654973 /* reiser3 */ 3975 || sfs.f_type == 0x52654973 /* reiser3 */
3617 || sfs.f_type == 0x01021994 /* tempfs */ 3976 || sfs.f_type == 0x01021994 /* tmpfs */
3618 || sfs.f_type == 0x58465342 /* xfs */)) 3977 || sfs.f_type == 0x58465342 /* xfs */))
3619 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3978 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3620 else 3979 else
3621 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 */
3622 } 3981 }
… …
3735} 4094}
3736 4095
3737inline_size int 4096inline_size int
3738infy_newfd (void) 4097infy_newfd (void)
3739{ 4098{
3740#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4099#if defined IN_CLOEXEC && defined IN_NONBLOCK
3741 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4100 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3742 if (fd >= 0) 4101 if (fd >= 0)
3743 return fd; 4102 return fd;
3744#endif 4103#endif
3745 return inotify_init (); 4104 return inotify_init ();
… …
3820#else 4179#else
3821# define EV_LSTAT(p,b) lstat (p, b) 4180# define EV_LSTAT(p,b) lstat (p, b)
3822#endif 4181#endif
3823 4182
3824void 4183void
3825ev_stat_stat (EV_P_ ev_stat *w) 4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3826{ 4185{
3827 if (lstat (w->path, &w->attr) < 0) 4186 if (lstat (w->path, &w->attr) < 0)
3828 w->attr.st_nlink = 0; 4187 w->attr.st_nlink = 0;
3829 else if (!w->attr.st_nlink) 4188 else if (!w->attr.st_nlink)
3830 w->attr.st_nlink = 1; 4189 w->attr.st_nlink = 1;
… …
3869 ev_feed_event (EV_A_ w, EV_STAT); 4228 ev_feed_event (EV_A_ w, EV_STAT);
3870 } 4229 }
3871} 4230}
3872 4231
3873void 4232void
3874ev_stat_start (EV_P_ ev_stat *w) 4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3875{ 4234{
3876 if (expect_false (ev_is_active (w))) 4235 if (expect_false (ev_is_active (w)))
3877 return; 4236 return;
3878 4237
3879 ev_stat_stat (EV_A_ w); 4238 ev_stat_stat (EV_A_ w);
… …
3900 4259
3901 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
3902} 4261}
3903 4262
3904void 4263void
3905ev_stat_stop (EV_P_ ev_stat *w) 4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3906{ 4265{
3907 clear_pending (EV_A_ (W)w); 4266 clear_pending (EV_A_ (W)w);
3908 if (expect_false (!ev_is_active (w))) 4267 if (expect_false (!ev_is_active (w)))
3909 return; 4268 return;
3910 4269
… …
3926} 4285}
3927#endif 4286#endif
3928 4287
3929#if EV_IDLE_ENABLE 4288#if EV_IDLE_ENABLE
3930void 4289void
3931ev_idle_start (EV_P_ ev_idle *w) 4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3932{ 4291{
3933 if (expect_false (ev_is_active (w))) 4292 if (expect_false (ev_is_active (w)))
3934 return; 4293 return;
3935 4294
3936 pri_adjust (EV_A_ (W)w); 4295 pri_adjust (EV_A_ (W)w);
… …
3949 4308
3950 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3951} 4310}
3952 4311
3953void 4312void
3954ev_idle_stop (EV_P_ ev_idle *w) 4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3955{ 4314{
3956 clear_pending (EV_A_ (W)w); 4315 clear_pending (EV_A_ (W)w);
3957 if (expect_false (!ev_is_active (w))) 4316 if (expect_false (!ev_is_active (w)))
3958 return; 4317 return;
3959 4318
… …
3973} 4332}
3974#endif 4333#endif
3975 4334
3976#if EV_PREPARE_ENABLE 4335#if EV_PREPARE_ENABLE
3977void 4336void
3978ev_prepare_start (EV_P_ ev_prepare *w) 4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3979{ 4338{
3980 if (expect_false (ev_is_active (w))) 4339 if (expect_false (ev_is_active (w)))
3981 return; 4340 return;
3982 4341
3983 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
… …
3988 4347
3989 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3990} 4349}
3991 4350
3992void 4351void
3993ev_prepare_stop (EV_P_ ev_prepare *w) 4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3994{ 4353{
3995 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
3996 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
3997 return; 4356 return;
3998 4357
… …
4011} 4370}
4012#endif 4371#endif
4013 4372
4014#if EV_CHECK_ENABLE 4373#if EV_CHECK_ENABLE
4015void 4374void
4016ev_check_start (EV_P_ ev_check *w) 4375ev_check_start (EV_P_ ev_check *w) EV_THROW
4017{ 4376{
4018 if (expect_false (ev_is_active (w))) 4377 if (expect_false (ev_is_active (w)))
4019 return; 4378 return;
4020 4379
4021 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
… …
4026 4385
4027 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
4028} 4387}
4029 4388
4030void 4389void
4031ev_check_stop (EV_P_ ev_check *w) 4390ev_check_stop (EV_P_ ev_check *w) EV_THROW
4032{ 4391{
4033 clear_pending (EV_A_ (W)w); 4392 clear_pending (EV_A_ (W)w);
4034 if (expect_false (!ev_is_active (w))) 4393 if (expect_false (!ev_is_active (w)))
4035 return; 4394 return;
4036 4395
… …
4049} 4408}
4050#endif 4409#endif
4051 4410
4052#if EV_EMBED_ENABLE 4411#if EV_EMBED_ENABLE
4053void noinline 4412void noinline
4054ev_embed_sweep (EV_P_ ev_embed *w) 4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4055{ 4414{
4056 ev_run (w->other, EVRUN_NOWAIT); 4415 ev_run (w->other, EVRUN_NOWAIT);
4057} 4416}
4058 4417
4059static void 4418static void
… …
4107 ev_idle_stop (EV_A_ idle); 4466 ev_idle_stop (EV_A_ idle);
4108} 4467}
4109#endif 4468#endif
4110 4469
4111void 4470void
4112ev_embed_start (EV_P_ ev_embed *w) 4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4113{ 4472{
4114 if (expect_false (ev_is_active (w))) 4473 if (expect_false (ev_is_active (w)))
4115 return; 4474 return;
4116 4475
4117 { 4476 {
… …
4138 4497
4139 EV_FREQUENT_CHECK; 4498 EV_FREQUENT_CHECK;
4140} 4499}
4141 4500
4142void 4501void
4143ev_embed_stop (EV_P_ ev_embed *w) 4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4144{ 4503{
4145 clear_pending (EV_A_ (W)w); 4504 clear_pending (EV_A_ (W)w);
4146 if (expect_false (!ev_is_active (w))) 4505 if (expect_false (!ev_is_active (w)))
4147 return; 4506 return;
4148 4507
… …
4158} 4517}
4159#endif 4518#endif
4160 4519
4161#if EV_FORK_ENABLE 4520#if EV_FORK_ENABLE
4162void 4521void
4163ev_fork_start (EV_P_ ev_fork *w) 4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4164{ 4523{
4165 if (expect_false (ev_is_active (w))) 4524 if (expect_false (ev_is_active (w)))
4166 return; 4525 return;
4167 4526
4168 EV_FREQUENT_CHECK; 4527 EV_FREQUENT_CHECK;
… …
4173 4532
4174 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
4175} 4534}
4176 4535
4177void 4536void
4178ev_fork_stop (EV_P_ ev_fork *w) 4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4179{ 4538{
4180 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
4181 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
4182 return; 4541 return;
4183 4542
… …
4196} 4555}
4197#endif 4556#endif
4198 4557
4199#if EV_CLEANUP_ENABLE 4558#if EV_CLEANUP_ENABLE
4200void 4559void
4201ev_cleanup_start (EV_P_ ev_cleanup *w) 4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4202{ 4561{
4203 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
4204 return; 4563 return;
4205 4564
4206 EV_FREQUENT_CHECK; 4565 EV_FREQUENT_CHECK;
… …
4213 ev_unref (EV_A); 4572 ev_unref (EV_A);
4214 EV_FREQUENT_CHECK; 4573 EV_FREQUENT_CHECK;
4215} 4574}
4216 4575
4217void 4576void
4218ev_cleanup_stop (EV_P_ ev_cleanup *w) 4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4219{ 4578{
4220 clear_pending (EV_A_ (W)w); 4579 clear_pending (EV_A_ (W)w);
4221 if (expect_false (!ev_is_active (w))) 4580 if (expect_false (!ev_is_active (w)))
4222 return; 4581 return;
4223 4582
… …
4237} 4596}
4238#endif 4597#endif
4239 4598
4240#if EV_ASYNC_ENABLE 4599#if EV_ASYNC_ENABLE
4241void 4600void
4242ev_async_start (EV_P_ ev_async *w) 4601ev_async_start (EV_P_ ev_async *w) EV_THROW
4243{ 4602{
4244 if (expect_false (ev_is_active (w))) 4603 if (expect_false (ev_is_active (w)))
4245 return; 4604 return;
4246 4605
4247 w->sent = 0; 4606 w->sent = 0;
… …
4256 4615
4257 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
4258} 4617}
4259 4618
4260void 4619void
4261ev_async_stop (EV_P_ ev_async *w) 4620ev_async_stop (EV_P_ ev_async *w) EV_THROW
4262{ 4621{
4263 clear_pending (EV_A_ (W)w); 4622 clear_pending (EV_A_ (W)w);
4264 if (expect_false (!ev_is_active (w))) 4623 if (expect_false (!ev_is_active (w)))
4265 return; 4624 return;
4266 4625
… …
4277 4636
4278 EV_FREQUENT_CHECK; 4637 EV_FREQUENT_CHECK;
4279} 4638}
4280 4639
4281void 4640void
4282ev_async_send (EV_P_ ev_async *w) 4641ev_async_send (EV_P_ ev_async *w) EV_THROW
4283{ 4642{
4284 w->sent = 1; 4643 w->sent = 1;
4285 evpipe_write (EV_A_ &async_pending); 4644 evpipe_write (EV_A_ &async_pending);
4286} 4645}
4287#endif 4646#endif
… …
4324 4683
4325 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));
4326} 4685}
4327 4686
4328void 4687void
4329ev_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
4330{ 4689{
4331 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));
4332 4691
4333 if (expect_false (!once)) 4692 if (expect_false (!once))
4334 { 4693 {
… …
4356 4715
4357/*****************************************************************************/ 4716/*****************************************************************************/
4358 4717
4359#if EV_WALK_ENABLE 4718#if EV_WALK_ENABLE
4360void ecb_cold 4719void ecb_cold
4361ev_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
4362{ 4721{
4363 int i, j; 4722 int i, j;
4364 ev_watcher_list *wl, *wn; 4723 ev_watcher_list *wl, *wn;
4365 4724
4366 if (types & (EV_IO | EV_EMBED)) 4725 if (types & (EV_IO | EV_EMBED))

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