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Comparing libev/ev.c (file contents):
Revision 1.413 by root, Fri Mar 23 19:06:08 2012 UTC vs.
Revision 1.461 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 ()
606 #elif __xlC__ 678 #elif __xlC__
607 #define ECB_MEMORY_FENCE __lwsync () 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)
608 #endif 695 #endif
609#endif 696#endif
610 697
611#ifndef ECB_MEMORY_FENCE 698#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 699 #if !ECB_AVOID_PTHREADS
… …
624 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 711 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
625 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 712 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
626 #endif 713 #endif
627#endif 714#endif
628 715
629#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 716#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 717 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
631#endif 718#endif
632 719
633#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 720#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 722#endif
636 723
637/*****************************************************************************/ 724/*****************************************************************************/
638
639#define ECB_C99 (__STDC_VERSION__ >= 199901L)
640 725
641#if __cplusplus 726#if __cplusplus
642 #define ecb_inline static inline 727 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 728#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 729 #define ecb_inline static __inline__
… …
683#elif ECB_GCC_VERSION(3,0) 768#elif ECB_GCC_VERSION(3,0)
684 #define ecb_decltype(x) __typeof(x) 769 #define ecb_decltype(x) __typeof(x)
685#endif 770#endif
686 771
687#define ecb_noinline ecb_attribute ((__noinline__)) 772#define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__))
689#define ecb_unused ecb_attribute ((__unused__)) 773#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 774#define ecb_const ecb_attribute ((__const__))
691#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
692 782
693#if ECB_GCC_VERSION(4,3) 783#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 784 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 785 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 786 #define ecb_cold ecb_attribute ((__cold__))
… …
787 877
788 return r + ecb_ld32 (x); 878 return r + ecb_ld32 (x);
789 } 879 }
790#endif 880#endif
791 881
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
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
794{ 889{
795 return ( (x * 0x0802U & 0x22110U) 890 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
880 ecb_inline void ecb_unreachable (void) ecb_noreturn; 975 ecb_inline void ecb_unreachable (void) ecb_noreturn;
881 ecb_inline void ecb_unreachable (void) { } 976 ecb_inline void ecb_unreachable (void) { }
882#endif 977#endif
883 978
884/* try to tell the compiler that some condition is definitely true */ 979/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886 981
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
888ecb_inline unsigned char 983ecb_inline unsigned char
889ecb_byteorder_helper (void) 984ecb_byteorder_helper (void)
890{ 985{
891 const uint32_t u = 0x11223344; 986 /* the union code still generates code under pressure in gcc, */
892 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
893} 1006}
894 1007
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
896ecb_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; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
928 } 1041 }
929#else 1042#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif 1044#endif
932 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
933#endif 1240#endif
934 1241
935/* ECB.H END */ 1242/* ECB.H END */
936 1243
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1244#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1103{ 1410{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1411 write (STDERR_FILENO, msg, strlen (msg));
1105} 1412}
1106#endif 1413#endif
1107 1414
1108static void (*syserr_cb)(const char *msg); 1415static void (*syserr_cb)(const char *msg) EV_THROW;
1109 1416
1110void ecb_cold 1417void ecb_cold
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112{ 1419{
1113 syserr_cb = cb; 1420 syserr_cb = cb;
1114} 1421}
1115 1422
1116static void noinline ecb_cold 1423static void noinline ecb_cold
… …
1134 abort (); 1441 abort ();
1135 } 1442 }
1136} 1443}
1137 1444
1138static void * 1445static void *
1139ev_realloc_emul (void *ptr, long size) 1446ev_realloc_emul (void *ptr, long size) EV_THROW
1140{ 1447{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1448 /* some systems, notably openbsd and darwin, fail to properly
1145 * 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
1146 * 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.
1147 */ 1453 */
1148 1454
1149 if (size) 1455 if (size)
1150 return realloc (ptr, size); 1456 return realloc (ptr, size);
1151 1457
1152 free (ptr); 1458 free (ptr);
1153 return 0; 1459 return 0;
1154#endif
1155} 1460}
1156 1461
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158 1463
1159void ecb_cold 1464void ecb_cold
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161{ 1466{
1162 alloc = cb; 1467 alloc = cb;
1163} 1468}
1164 1469
1165inline_speed void * 1470inline_speed void *
… …
1282 1587
1283/*****************************************************************************/ 1588/*****************************************************************************/
1284 1589
1285#ifndef EV_HAVE_EV_TIME 1590#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 1591ev_tstamp
1287ev_time (void) 1592ev_time (void) EV_THROW
1288{ 1593{
1289#if EV_USE_REALTIME 1594#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 1595 if (expect_true (have_realtime))
1291 { 1596 {
1292 struct timespec ts; 1597 struct timespec ts;
… …
1316 return ev_time (); 1621 return ev_time ();
1317} 1622}
1318 1623
1319#if EV_MULTIPLICITY 1624#if EV_MULTIPLICITY
1320ev_tstamp 1625ev_tstamp
1321ev_now (EV_P) 1626ev_now (EV_P) EV_THROW
1322{ 1627{
1323 return ev_rt_now; 1628 return ev_rt_now;
1324} 1629}
1325#endif 1630#endif
1326 1631
1327void 1632void
1328ev_sleep (ev_tstamp delay) 1633ev_sleep (ev_tstamp delay) EV_THROW
1329{ 1634{
1330 if (delay > 0.) 1635 if (delay > 0.)
1331 { 1636 {
1332#if EV_USE_NANOSLEEP 1637#if EV_USE_NANOSLEEP
1333 struct timespec ts; 1638 struct timespec ts;
1334 1639
1335 EV_TS_SET (ts, delay); 1640 EV_TS_SET (ts, delay);
1336 nanosleep (&ts, 0); 1641 nanosleep (&ts, 0);
1337#elif defined(_WIN32) 1642#elif defined _WIN32
1338 Sleep ((unsigned long)(delay * 1e3)); 1643 Sleep ((unsigned long)(delay * 1e3));
1339#else 1644#else
1340 struct timeval tv; 1645 struct timeval tv;
1341 1646
1342 /* 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 */
… …
1414pendingcb (EV_P_ ev_prepare *w, int revents) 1719pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 1720{
1416} 1721}
1417 1722
1418void noinline 1723void noinline
1419ev_feed_event (EV_P_ void *w, int revents) 1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420{ 1725{
1421 W w_ = (W)w; 1726 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 1727 int pri = ABSPRI (w_);
1423 1728
1424 if (expect_false (w_->pending)) 1729 if (expect_false (w_->pending))
… …
1428 w_->pending = ++pendingcnt [pri]; 1733 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1734 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430 pendings [pri][w_->pending - 1].w = w_; 1735 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 1736 pendings [pri][w_->pending - 1].events = revents;
1432 } 1737 }
1738
1739 pendingpri = NUMPRI - 1;
1433} 1740}
1434 1741
1435inline_speed void 1742inline_speed void
1436feed_reverse (EV_P_ W w) 1743feed_reverse (EV_P_ W w)
1437{ 1744{
… …
1483 if (expect_true (!anfd->reify)) 1790 if (expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 1791 fd_event_nocheck (EV_A_ fd, revents);
1485} 1792}
1486 1793
1487void 1794void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489{ 1796{
1490 if (fd >= 0 && fd < anfdmax) 1797 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 1798 fd_event_nocheck (EV_A_ fd, revents);
1492} 1799}
1493 1800
… …
1812static void noinline ecb_cold 2119static void noinline ecb_cold
1813evpipe_init (EV_P) 2120evpipe_init (EV_P)
1814{ 2121{
1815 if (!ev_is_active (&pipe_w)) 2122 if (!ev_is_active (&pipe_w))
1816 { 2123 {
2124 int fds [2];
2125
1817# if EV_USE_EVENTFD 2126# if EV_USE_EVENTFD
2127 fds [0] = -1;
1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2128 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819 if (evfd < 0 && errno == EINVAL) 2129 if (fds [1] < 0 && errno == EINVAL)
1820 evfd = eventfd (0, 0); 2130 fds [1] = eventfd (0, 0);
1821 2131
1822 if (evfd >= 0) 2132 if (fds [1] < 0)
2133# endif
1823 { 2134 {
2135 while (pipe (fds))
2136 ev_syserr ("(libev) error creating signal/async pipe");
2137
2138 fd_intern (fds [0]);
2139 }
2140
1824 evpipe [0] = -1; 2141 evpipe [0] = fds [0];
1825 fd_intern (evfd); /* doing it twice doesn't hurt */ 2142
1826 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));
1827 } 2193 }
1828 else 2194 else
1829# endif 2195#endif
1830 { 2196 {
1831 while (pipe (evpipe)) 2197#ifdef _WIN32
1832 ev_syserr ("(libev) error creating signal/async pipe"); 2198 WSABUF buf;
1833 2199 DWORD sent;
1834 fd_intern (evpipe [0]); 2200 buf.buf = &buf;
1835 fd_intern (evpipe [1]); 2201 buf.len = 1;
1836 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837 } 2203#else
1838
1839 ev_io_start (EV_A_ &pipe_w);
1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1841 }
1842}
1843
1844inline_speed void
1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1846{
1847 if (expect_true (*flag))
1848 return;
1849
1850 *flag = 1;
1851
1852 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1853
1854 pipe_write_skipped = 1;
1855
1856 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1857
1858 if (pipe_write_wanted)
1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1864 old_errno = errno; /* save errno because write will clobber it */
1865
1866#if EV_USE_EVENTFD
1867 if (evfd >= 0)
1868 {
1869 uint64_t counter = 1;
1870 write (evfd, &counter, sizeof (uint64_t));
1871 }
1872 else
1873#endif
1874 {
1875 /* win32 people keep sending patches that change this write() to send() */
1876 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1877 /* so when you think this write should be a send instead, please find out */
1878 /* where your send() is from - it's definitely not the microsoft send, and */
1879 /* tell me. thank you. */
1880 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1881 /* check the ev documentation on how to use this flag */
1882 write (evpipe [1], &(evpipe [1]), 1); 2204 write (evpipe [1], &(evpipe [1]), 1);
2205#endif
1883 } 2206 }
1884 2207
1885 errno = old_errno; 2208 errno = old_errno;
1886 } 2209 }
1887} 2210}
… …
1894 int i; 2217 int i;
1895 2218
1896 if (revents & EV_READ) 2219 if (revents & EV_READ)
1897 { 2220 {
1898#if EV_USE_EVENTFD 2221#if EV_USE_EVENTFD
1899 if (evfd >= 0) 2222 if (evpipe [0] < 0)
1900 { 2223 {
1901 uint64_t counter; 2224 uint64_t counter;
1902 read (evfd, &counter, sizeof (uint64_t)); 2225 read (evpipe [1], &counter, sizeof (uint64_t));
1903 } 2226 }
1904 else 2227 else
1905#endif 2228#endif
1906 { 2229 {
1907 char dummy; 2230 char dummy[4];
1908 /* 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
1909 read (evpipe [0], &dummy, 1); 2239 read (evpipe [0], &dummy, sizeof (dummy));
2240#endif
1910 } 2241 }
1911 } 2242 }
1912 2243
1913 pipe_write_skipped = 0; 2244 pipe_write_skipped = 0;
2245
2246 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 2247
1915#if EV_SIGNAL_ENABLE 2248#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 2249 if (sig_pending)
1917 { 2250 {
1918 sig_pending = 0; 2251 sig_pending = 0;
2252
2253 ECB_MEMORY_FENCE;
1919 2254
1920 for (i = EV_NSIG - 1; i--; ) 2255 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 2256 if (expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 2257 ev_feed_signal_event (EV_A_ i + 1);
1923 } 2258 }
… …
1925 2260
1926#if EV_ASYNC_ENABLE 2261#if EV_ASYNC_ENABLE
1927 if (async_pending) 2262 if (async_pending)
1928 { 2263 {
1929 async_pending = 0; 2264 async_pending = 0;
2265
2266 ECB_MEMORY_FENCE;
1930 2267
1931 for (i = asynccnt; i--; ) 2268 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2269 if (asyncs [i]->sent)
1933 { 2270 {
1934 asyncs [i]->sent = 0; 2271 asyncs [i]->sent = 0;
2272 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2273 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2274 }
1937 } 2275 }
1938#endif 2276#endif
1939} 2277}
1940 2278
1941/*****************************************************************************/ 2279/*****************************************************************************/
1942 2280
1943void 2281void
1944ev_feed_signal (int signum) 2282ev_feed_signal (int signum) EV_THROW
1945{ 2283{
1946#if EV_MULTIPLICITY 2284#if EV_MULTIPLICITY
2285 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE;
1947 EV_P = signals [signum - 1].loop; 2287 EV_A = signals [signum - 1].loop;
1948 2288
1949 if (!EV_A) 2289 if (!EV_A)
1950 return; 2290 return;
1951#endif 2291#endif
1952 2292
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1; 2293 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending); 2294 evpipe_write (EV_A_ &sig_pending);
1958} 2295}
1959 2296
1960static void 2297static void
… …
1966 2303
1967 ev_feed_signal (signum); 2304 ev_feed_signal (signum);
1968} 2305}
1969 2306
1970void noinline 2307void noinline
1971ev_feed_signal_event (EV_P_ int signum) 2308ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972{ 2309{
1973 WL w; 2310 WL w;
1974 2311
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2312 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2313 return;
1977 2314
1978 --signum; 2315 --signum;
1979 2316
1980#if EV_MULTIPLICITY 2317#if EV_MULTIPLICITY
… …
1984 if (expect_false (signals [signum].loop != EV_A)) 2321 if (expect_false (signals [signum].loop != EV_A))
1985 return; 2322 return;
1986#endif 2323#endif
1987 2324
1988 signals [signum].pending = 0; 2325 signals [signum].pending = 0;
2326 ECB_MEMORY_FENCE_RELEASE;
1989 2327
1990 for (w = signals [signum].head; w; w = w->next) 2328 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2329 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2330}
1993 2331
… …
2092#if EV_USE_SELECT 2430#if EV_USE_SELECT
2093# include "ev_select.c" 2431# include "ev_select.c"
2094#endif 2432#endif
2095 2433
2096int ecb_cold 2434int ecb_cold
2097ev_version_major (void) 2435ev_version_major (void) EV_THROW
2098{ 2436{
2099 return EV_VERSION_MAJOR; 2437 return EV_VERSION_MAJOR;
2100} 2438}
2101 2439
2102int ecb_cold 2440int ecb_cold
2103ev_version_minor (void) 2441ev_version_minor (void) EV_THROW
2104{ 2442{
2105 return EV_VERSION_MINOR; 2443 return EV_VERSION_MINOR;
2106} 2444}
2107 2445
2108/* 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 */
… …
2116 || getgid () != getegid (); 2454 || getgid () != getegid ();
2117#endif 2455#endif
2118} 2456}
2119 2457
2120unsigned int ecb_cold 2458unsigned int ecb_cold
2121ev_supported_backends (void) 2459ev_supported_backends (void) EV_THROW
2122{ 2460{
2123 unsigned int flags = 0; 2461 unsigned int flags = 0;
2124 2462
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2130 2468
2131 return flags; 2469 return flags;
2132} 2470}
2133 2471
2134unsigned int ecb_cold 2472unsigned int ecb_cold
2135ev_recommended_backends (void) 2473ev_recommended_backends (void) EV_THROW
2136{ 2474{
2137 unsigned int flags = ev_supported_backends (); 2475 unsigned int flags = ev_supported_backends ();
2138 2476
2139#ifndef __NetBSD__ 2477#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 2478 /* kqueue is borked on everything but netbsd apparently */
… …
2152 2490
2153 return flags; 2491 return flags;
2154} 2492}
2155 2493
2156unsigned int ecb_cold 2494unsigned int ecb_cold
2157ev_embeddable_backends (void) 2495ev_embeddable_backends (void) EV_THROW
2158{ 2496{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 2498
2161 /* 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 */
2162 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 */
… …
2164 2502
2165 return flags; 2503 return flags;
2166} 2504}
2167 2505
2168unsigned int 2506unsigned int
2169ev_backend (EV_P) 2507ev_backend (EV_P) EV_THROW
2170{ 2508{
2171 return backend; 2509 return backend;
2172} 2510}
2173 2511
2174#if EV_FEATURE_API 2512#if EV_FEATURE_API
2175unsigned int 2513unsigned int
2176ev_iteration (EV_P) 2514ev_iteration (EV_P) EV_THROW
2177{ 2515{
2178 return loop_count; 2516 return loop_count;
2179} 2517}
2180 2518
2181unsigned int 2519unsigned int
2182ev_depth (EV_P) 2520ev_depth (EV_P) EV_THROW
2183{ 2521{
2184 return loop_depth; 2522 return loop_depth;
2185} 2523}
2186 2524
2187void 2525void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2527{
2190 io_blocktime = interval; 2528 io_blocktime = interval;
2191} 2529}
2192 2530
2193void 2531void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195{ 2533{
2196 timeout_blocktime = interval; 2534 timeout_blocktime = interval;
2197} 2535}
2198 2536
2199void 2537void
2200ev_set_userdata (EV_P_ void *data) 2538ev_set_userdata (EV_P_ void *data) EV_THROW
2201{ 2539{
2202 userdata = data; 2540 userdata = data;
2203} 2541}
2204 2542
2205void * 2543void *
2206ev_userdata (EV_P) 2544ev_userdata (EV_P) EV_THROW
2207{ 2545{
2208 return userdata; 2546 return userdata;
2209} 2547}
2210 2548
2211void 2549void
2212ev_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
2213{ 2551{
2214 invoke_cb = invoke_pending_cb; 2552 invoke_cb = invoke_pending_cb;
2215} 2553}
2216 2554
2217void 2555void
2218ev_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
2219{ 2557{
2220 release_cb = release; 2558 release_cb = release;
2221 acquire_cb = acquire; 2559 acquire_cb = acquire;
2222} 2560}
2223#endif 2561#endif
2224 2562
2225/* initialise a loop structure, must be zero-initialised */ 2563/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 2564static void noinline ecb_cold
2227loop_init (EV_P_ unsigned int flags) 2565loop_init (EV_P_ unsigned int flags) EV_THROW
2228{ 2566{
2229 if (!backend) 2567 if (!backend)
2230 { 2568 {
2231 origflags = flags; 2569 origflags = flags;
2232 2570
… …
2277#if EV_ASYNC_ENABLE 2615#if EV_ASYNC_ENABLE
2278 async_pending = 0; 2616 async_pending = 0;
2279#endif 2617#endif
2280 pipe_write_skipped = 0; 2618 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0; 2619 pipe_write_wanted = 0;
2620 evpipe [0] = -1;
2621 evpipe [1] = -1;
2282#if EV_USE_INOTIFY 2622#if EV_USE_INOTIFY
2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2623 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284#endif 2624#endif
2285#if EV_USE_SIGNALFD 2625#if EV_USE_SIGNALFD
2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2626 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2337 EV_INVOKE_PENDING; 2677 EV_INVOKE_PENDING;
2338 } 2678 }
2339#endif 2679#endif
2340 2680
2341#if EV_CHILD_ENABLE 2681#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 2682 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 2683 {
2344 ev_ref (EV_A); /* child watcher */ 2684 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 2685 ev_signal_stop (EV_A_ &childev);
2346 } 2686 }
2347#endif 2687#endif
… …
2349 if (ev_is_active (&pipe_w)) 2689 if (ev_is_active (&pipe_w))
2350 { 2690 {
2351 /*ev_ref (EV_A);*/ 2691 /*ev_ref (EV_A);*/
2352 /*ev_io_stop (EV_A_ &pipe_w);*/ 2692 /*ev_io_stop (EV_A_ &pipe_w);*/
2353 2693
2354#if EV_USE_EVENTFD
2355 if (evfd >= 0)
2356 close (evfd);
2357#endif
2358
2359 if (evpipe [0] >= 0)
2360 {
2361 EV_WIN32_CLOSE_FD (evpipe [0]); 2694 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362 EV_WIN32_CLOSE_FD (evpipe [1]); 2695 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363 }
2364 } 2696 }
2365 2697
2366#if EV_USE_SIGNALFD 2698#if EV_USE_SIGNALFD
2367 if (ev_is_active (&sigfd_w)) 2699 if (ev_is_active (&sigfd_w))
2368 close (sigfd); 2700 close (sigfd);
… …
2454#endif 2786#endif
2455#if EV_USE_INOTIFY 2787#if EV_USE_INOTIFY
2456 infy_fork (EV_A); 2788 infy_fork (EV_A);
2457#endif 2789#endif
2458 2790
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459 if (ev_is_active (&pipe_w)) 2792 if (ev_is_active (&pipe_w))
2460 { 2793 {
2461 /* 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 */
2462 2795
2463 ev_ref (EV_A); 2796 ev_ref (EV_A);
2464 ev_io_stop (EV_A_ &pipe_w); 2797 ev_io_stop (EV_A_ &pipe_w);
2465 2798
2466#if EV_USE_EVENTFD
2467 if (evfd >= 0)
2468 close (evfd);
2469#endif
2470
2471 if (evpipe [0] >= 0) 2799 if (evpipe [0] >= 0)
2472 {
2473 EV_WIN32_CLOSE_FD (evpipe [0]); 2800 EV_WIN32_CLOSE_FD (evpipe [0]);
2474 EV_WIN32_CLOSE_FD (evpipe [1]);
2475 }
2476 2801
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A); 2802 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */ 2803 /* iterate over everything, in case we missed something before */
2480 pipecb (EV_A_ &pipe_w, EV_READ); 2804 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481#endif
2482 } 2805 }
2806#endif
2483 2807
2484 postfork = 0; 2808 postfork = 0;
2485} 2809}
2486 2810
2487#if EV_MULTIPLICITY 2811#if EV_MULTIPLICITY
2488 2812
2489struct ev_loop * ecb_cold 2813struct ev_loop * ecb_cold
2490ev_loop_new (unsigned int flags) 2814ev_loop_new (unsigned int flags) EV_THROW
2491{ 2815{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 2817
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 2818 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 2819 loop_init (EV_A_ flags);
… …
2539} 2863}
2540#endif 2864#endif
2541 2865
2542#if EV_FEATURE_API 2866#if EV_FEATURE_API
2543void ecb_cold 2867void ecb_cold
2544ev_verify (EV_P) 2868ev_verify (EV_P) EV_THROW
2545{ 2869{
2546#if EV_VERIFY 2870#if EV_VERIFY
2547 int i; 2871 int i;
2548 WL w; 2872 WL w, w2;
2549 2873
2550 assert (activecnt >= -1); 2874 assert (activecnt >= -1);
2551 2875
2552 assert (fdchangemax >= fdchangecnt); 2876 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 2877 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2878 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 2879
2556 assert (anfdmax >= 0); 2880 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 2881 for (i = 0; i < anfdmax; ++i)
2882 {
2883 int j = 0;
2884
2558 for (w = anfds [i].head; w; w = w->next) 2885 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 2886 {
2560 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
2561 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));
2562 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));
2563 } 2897 }
2898 }
2564 2899
2565 assert (timermax >= timercnt); 2900 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 2901 verify_heap (EV_A_ timers, timercnt);
2567 2902
2568#if EV_PERIODIC_ENABLE 2903#if EV_PERIODIC_ENABLE
… …
2618#if EV_MULTIPLICITY 2953#if EV_MULTIPLICITY
2619struct ev_loop * ecb_cold 2954struct ev_loop * ecb_cold
2620#else 2955#else
2621int 2956int
2622#endif 2957#endif
2623ev_default_loop (unsigned int flags) 2958ev_default_loop (unsigned int flags) EV_THROW
2624{ 2959{
2625 if (!ev_default_loop_ptr) 2960 if (!ev_default_loop_ptr)
2626 { 2961 {
2627#if EV_MULTIPLICITY 2962#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 2963 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2647 2982
2648 return ev_default_loop_ptr; 2983 return ev_default_loop_ptr;
2649} 2984}
2650 2985
2651void 2986void
2652ev_loop_fork (EV_P) 2987ev_loop_fork (EV_P) EV_THROW
2653{ 2988{
2654 postfork = 1; /* must be in line with ev_default_fork */ 2989 postfork = 1;
2655} 2990}
2656 2991
2657/*****************************************************************************/ 2992/*****************************************************************************/
2658 2993
2659void 2994void
… …
2661{ 2996{
2662 EV_CB_INVOKE ((W)w, revents); 2997 EV_CB_INVOKE ((W)w, revents);
2663} 2998}
2664 2999
2665unsigned int 3000unsigned int
2666ev_pending_count (EV_P) 3001ev_pending_count (EV_P) EV_THROW
2667{ 3002{
2668 int pri; 3003 int pri;
2669 unsigned int count = 0; 3004 unsigned int count = 0;
2670 3005
2671 for (pri = NUMPRI; pri--; ) 3006 for (pri = NUMPRI; pri--; )
… …
2675} 3010}
2676 3011
2677void noinline 3012void noinline
2678ev_invoke_pending (EV_P) 3013ev_invoke_pending (EV_P)
2679{ 3014{
2680 int pri; 3015 pendingpri = NUMPRI;
2681 3016
2682 for (pri = NUMPRI; pri--; ) 3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3018 {
3019 --pendingpri;
3020
2683 while (pendingcnt [pri]) 3021 while (pendingcnt [pendingpri])
2684 { 3022 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 3024
2687 p->w->pending = 0; 3025 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 3026 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 3027 EV_FREQUENT_CHECK;
2690 } 3028 }
3029 }
2691} 3030}
2692 3031
2693#if EV_IDLE_ENABLE 3032#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 3033/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 3034/* only when higher priorities are idle" logic */
… …
2785{ 3124{
2786 EV_FREQUENT_CHECK; 3125 EV_FREQUENT_CHECK;
2787 3126
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3127 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 3128 {
2790 int feed_count = 0;
2791
2792 do 3129 do
2793 { 3130 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3131 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 3132
2796 /*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)));*/
… …
2930 3267
2931 mn_now = ev_rt_now; 3268 mn_now = ev_rt_now;
2932 } 3269 }
2933} 3270}
2934 3271
2935void 3272int
2936ev_run (EV_P_ int flags) 3273ev_run (EV_P_ int flags)
2937{ 3274{
2938#if EV_FEATURE_API 3275#if EV_FEATURE_API
2939 ++loop_depth; 3276 ++loop_depth;
2940#endif 3277#endif
… …
3055 backend_poll (EV_A_ waittime); 3392 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3393 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 3394
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3395 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 3396
3397 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 3398 if (pipe_write_skipped)
3061 { 3399 {
3062 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)));
3063 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3401 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 3402 }
… …
3097 loop_done = EVBREAK_CANCEL; 3435 loop_done = EVBREAK_CANCEL;
3098 3436
3099#if EV_FEATURE_API 3437#if EV_FEATURE_API
3100 --loop_depth; 3438 --loop_depth;
3101#endif 3439#endif
3440
3441 return activecnt;
3102} 3442}
3103 3443
3104void 3444void
3105ev_break (EV_P_ int how) 3445ev_break (EV_P_ int how) EV_THROW
3106{ 3446{
3107 loop_done = how; 3447 loop_done = how;
3108} 3448}
3109 3449
3110void 3450void
3111ev_ref (EV_P) 3451ev_ref (EV_P) EV_THROW
3112{ 3452{
3113 ++activecnt; 3453 ++activecnt;
3114} 3454}
3115 3455
3116void 3456void
3117ev_unref (EV_P) 3457ev_unref (EV_P) EV_THROW
3118{ 3458{
3119 --activecnt; 3459 --activecnt;
3120} 3460}
3121 3461
3122void 3462void
3123ev_now_update (EV_P) 3463ev_now_update (EV_P) EV_THROW
3124{ 3464{
3125 time_update (EV_A_ 1e100); 3465 time_update (EV_A_ 1e100);
3126} 3466}
3127 3467
3128void 3468void
3129ev_suspend (EV_P) 3469ev_suspend (EV_P) EV_THROW
3130{ 3470{
3131 ev_now_update (EV_A); 3471 ev_now_update (EV_A);
3132} 3472}
3133 3473
3134void 3474void
3135ev_resume (EV_P) 3475ev_resume (EV_P) EV_THROW
3136{ 3476{
3137 ev_tstamp mn_prev = mn_now; 3477 ev_tstamp mn_prev = mn_now;
3138 3478
3139 ev_now_update (EV_A); 3479 ev_now_update (EV_A);
3140 timers_reschedule (EV_A_ mn_now - mn_prev); 3480 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3179 w->pending = 0; 3519 w->pending = 0;
3180 } 3520 }
3181} 3521}
3182 3522
3183int 3523int
3184ev_clear_pending (EV_P_ void *w) 3524ev_clear_pending (EV_P_ void *w) EV_THROW
3185{ 3525{
3186 W w_ = (W)w; 3526 W w_ = (W)w;
3187 int pending = w_->pending; 3527 int pending = w_->pending;
3188 3528
3189 if (expect_true (pending)) 3529 if (expect_true (pending))
… …
3222} 3562}
3223 3563
3224/*****************************************************************************/ 3564/*****************************************************************************/
3225 3565
3226void noinline 3566void noinline
3227ev_io_start (EV_P_ ev_io *w) 3567ev_io_start (EV_P_ ev_io *w) EV_THROW
3228{ 3568{
3229 int fd = w->fd; 3569 int fd = w->fd;
3230 3570
3231 if (expect_false (ev_is_active (w))) 3571 if (expect_false (ev_is_active (w)))
3232 return; 3572 return;
… …
3238 3578
3239 ev_start (EV_A_ (W)w, 1); 3579 ev_start (EV_A_ (W)w, 1);
3240 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3580 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3241 wlist_add (&anfds[fd].head, (WL)w); 3581 wlist_add (&anfds[fd].head, (WL)w);
3242 3582
3583 /* common bug, apparently */
3584 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3585
3243 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);
3244 w->events &= ~EV__IOFDSET; 3587 w->events &= ~EV__IOFDSET;
3245 3588
3246 EV_FREQUENT_CHECK; 3589 EV_FREQUENT_CHECK;
3247} 3590}
3248 3591
3249void noinline 3592void noinline
3250ev_io_stop (EV_P_ ev_io *w) 3593ev_io_stop (EV_P_ ev_io *w) EV_THROW
3251{ 3594{
3252 clear_pending (EV_A_ (W)w); 3595 clear_pending (EV_A_ (W)w);
3253 if (expect_false (!ev_is_active (w))) 3596 if (expect_false (!ev_is_active (w)))
3254 return; 3597 return;
3255 3598
… …
3264 3607
3265 EV_FREQUENT_CHECK; 3608 EV_FREQUENT_CHECK;
3266} 3609}
3267 3610
3268void noinline 3611void noinline
3269ev_timer_start (EV_P_ ev_timer *w) 3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3270{ 3613{
3271 if (expect_false (ev_is_active (w))) 3614 if (expect_false (ev_is_active (w)))
3272 return; 3615 return;
3273 3616
3274 ev_at (w) += mn_now; 3617 ev_at (w) += mn_now;
… …
3288 3631
3289 /*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));*/
3290} 3633}
3291 3634
3292void noinline 3635void noinline
3293ev_timer_stop (EV_P_ ev_timer *w) 3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3294{ 3637{
3295 clear_pending (EV_A_ (W)w); 3638 clear_pending (EV_A_ (W)w);
3296 if (expect_false (!ev_is_active (w))) 3639 if (expect_false (!ev_is_active (w)))
3297 return; 3640 return;
3298 3641
… …
3318 3661
3319 EV_FREQUENT_CHECK; 3662 EV_FREQUENT_CHECK;
3320} 3663}
3321 3664
3322void noinline 3665void noinline
3323ev_timer_again (EV_P_ ev_timer *w) 3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3324{ 3667{
3325 EV_FREQUENT_CHECK; 3668 EV_FREQUENT_CHECK;
3326 3669
3327 clear_pending (EV_A_ (W)w); 3670 clear_pending (EV_A_ (W)w);
3328 3671
… …
3345 3688
3346 EV_FREQUENT_CHECK; 3689 EV_FREQUENT_CHECK;
3347} 3690}
3348 3691
3349ev_tstamp 3692ev_tstamp
3350ev_timer_remaining (EV_P_ ev_timer *w) 3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3351{ 3694{
3352 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3353} 3696}
3354 3697
3355#if EV_PERIODIC_ENABLE 3698#if EV_PERIODIC_ENABLE
3356void noinline 3699void noinline
3357ev_periodic_start (EV_P_ ev_periodic *w) 3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3358{ 3701{
3359 if (expect_false (ev_is_active (w))) 3702 if (expect_false (ev_is_active (w)))
3360 return; 3703 return;
3361 3704
3362 if (w->reschedule_cb) 3705 if (w->reschedule_cb)
… …
3382 3725
3383 /*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));*/
3384} 3727}
3385 3728
3386void noinline 3729void noinline
3387ev_periodic_stop (EV_P_ ev_periodic *w) 3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3388{ 3731{
3389 clear_pending (EV_A_ (W)w); 3732 clear_pending (EV_A_ (W)w);
3390 if (expect_false (!ev_is_active (w))) 3733 if (expect_false (!ev_is_active (w)))
3391 return; 3734 return;
3392 3735
… …
3410 3753
3411 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
3412} 3755}
3413 3756
3414void noinline 3757void noinline
3415ev_periodic_again (EV_P_ ev_periodic *w) 3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3416{ 3759{
3417 /* TODO: use adjustheap and recalculation */ 3760 /* TODO: use adjustheap and recalculation */
3418 ev_periodic_stop (EV_A_ w); 3761 ev_periodic_stop (EV_A_ w);
3419 ev_periodic_start (EV_A_ w); 3762 ev_periodic_start (EV_A_ w);
3420} 3763}
… …
3425#endif 3768#endif
3426 3769
3427#if EV_SIGNAL_ENABLE 3770#if EV_SIGNAL_ENABLE
3428 3771
3429void noinline 3772void noinline
3430ev_signal_start (EV_P_ ev_signal *w) 3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3431{ 3774{
3432 if (expect_false (ev_is_active (w))) 3775 if (expect_false (ev_is_active (w)))
3433 return; 3776 return;
3434 3777
3435 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));
… …
3437#if EV_MULTIPLICITY 3780#if EV_MULTIPLICITY
3438 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",
3439 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3782 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3440 3783
3441 signals [w->signum - 1].loop = EV_A; 3784 signals [w->signum - 1].loop = EV_A;
3785 ECB_MEMORY_FENCE_RELEASE;
3442#endif 3786#endif
3443 3787
3444 EV_FREQUENT_CHECK; 3788 EV_FREQUENT_CHECK;
3445 3789
3446#if EV_USE_SIGNALFD 3790#if EV_USE_SIGNALFD
… …
3506 3850
3507 EV_FREQUENT_CHECK; 3851 EV_FREQUENT_CHECK;
3508} 3852}
3509 3853
3510void noinline 3854void noinline
3511ev_signal_stop (EV_P_ ev_signal *w) 3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3512{ 3856{
3513 clear_pending (EV_A_ (W)w); 3857 clear_pending (EV_A_ (W)w);
3514 if (expect_false (!ev_is_active (w))) 3858 if (expect_false (!ev_is_active (w)))
3515 return; 3859 return;
3516 3860
… …
3547#endif 3891#endif
3548 3892
3549#if EV_CHILD_ENABLE 3893#if EV_CHILD_ENABLE
3550 3894
3551void 3895void
3552ev_child_start (EV_P_ ev_child *w) 3896ev_child_start (EV_P_ ev_child *w) EV_THROW
3553{ 3897{
3554#if EV_MULTIPLICITY 3898#if EV_MULTIPLICITY
3555 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));
3556#endif 3900#endif
3557 if (expect_false (ev_is_active (w))) 3901 if (expect_false (ev_is_active (w)))
… …
3564 3908
3565 EV_FREQUENT_CHECK; 3909 EV_FREQUENT_CHECK;
3566} 3910}
3567 3911
3568void 3912void
3569ev_child_stop (EV_P_ ev_child *w) 3913ev_child_stop (EV_P_ ev_child *w) EV_THROW
3570{ 3914{
3571 clear_pending (EV_A_ (W)w); 3915 clear_pending (EV_A_ (W)w);
3572 if (expect_false (!ev_is_active (w))) 3916 if (expect_false (!ev_is_active (w)))
3573 return; 3917 return;
3574 3918
… …
3601# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3602 3946
3603static void noinline 3947static void noinline
3604infy_add (EV_P_ ev_stat *w) 3948infy_add (EV_P_ ev_stat *w)
3605{ 3949{
3606 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 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);
3607 3954
3608 if (w->wd >= 0) 3955 if (w->wd >= 0)
3609 { 3956 {
3610 struct statfs sfs; 3957 struct statfs sfs;
3611 3958
… …
3615 3962
3616 if (!fs_2625) 3963 if (!fs_2625)
3617 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3964 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3618 else if (!statfs (w->path, &sfs) 3965 else if (!statfs (w->path, &sfs)
3619 && (sfs.f_type == 0x1373 /* devfs */ 3966 && (sfs.f_type == 0x1373 /* devfs */
3967 || sfs.f_type == 0x4006 /* fat */
3968 || sfs.f_type == 0x4d44 /* msdos */
3620 || 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 */
3621 || sfs.f_type == 0x3153464a /* jfs */ 3973 || sfs.f_type == 0x3153464a /* jfs */
3974 || sfs.f_type == 0x9123683e /* btrfs */
3622 || sfs.f_type == 0x52654973 /* reiser3 */ 3975 || sfs.f_type == 0x52654973 /* reiser3 */
3623 || sfs.f_type == 0x01021994 /* tempfs */ 3976 || sfs.f_type == 0x01021994 /* tmpfs */
3624 || sfs.f_type == 0x58465342 /* xfs */)) 3977 || sfs.f_type == 0x58465342 /* xfs */))
3625 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3978 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3626 else 3979 else
3627 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 */
3628 } 3981 }
… …
3741} 4094}
3742 4095
3743inline_size int 4096inline_size int
3744infy_newfd (void) 4097infy_newfd (void)
3745{ 4098{
3746#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4099#if defined IN_CLOEXEC && defined IN_NONBLOCK
3747 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4100 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3748 if (fd >= 0) 4101 if (fd >= 0)
3749 return fd; 4102 return fd;
3750#endif 4103#endif
3751 return inotify_init (); 4104 return inotify_init ();
… …
3826#else 4179#else
3827# define EV_LSTAT(p,b) lstat (p, b) 4180# define EV_LSTAT(p,b) lstat (p, b)
3828#endif 4181#endif
3829 4182
3830void 4183void
3831ev_stat_stat (EV_P_ ev_stat *w) 4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3832{ 4185{
3833 if (lstat (w->path, &w->attr) < 0) 4186 if (lstat (w->path, &w->attr) < 0)
3834 w->attr.st_nlink = 0; 4187 w->attr.st_nlink = 0;
3835 else if (!w->attr.st_nlink) 4188 else if (!w->attr.st_nlink)
3836 w->attr.st_nlink = 1; 4189 w->attr.st_nlink = 1;
… …
3875 ev_feed_event (EV_A_ w, EV_STAT); 4228 ev_feed_event (EV_A_ w, EV_STAT);
3876 } 4229 }
3877} 4230}
3878 4231
3879void 4232void
3880ev_stat_start (EV_P_ ev_stat *w) 4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3881{ 4234{
3882 if (expect_false (ev_is_active (w))) 4235 if (expect_false (ev_is_active (w)))
3883 return; 4236 return;
3884 4237
3885 ev_stat_stat (EV_A_ w); 4238 ev_stat_stat (EV_A_ w);
… …
3906 4259
3907 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
3908} 4261}
3909 4262
3910void 4263void
3911ev_stat_stop (EV_P_ ev_stat *w) 4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3912{ 4265{
3913 clear_pending (EV_A_ (W)w); 4266 clear_pending (EV_A_ (W)w);
3914 if (expect_false (!ev_is_active (w))) 4267 if (expect_false (!ev_is_active (w)))
3915 return; 4268 return;
3916 4269
… …
3932} 4285}
3933#endif 4286#endif
3934 4287
3935#if EV_IDLE_ENABLE 4288#if EV_IDLE_ENABLE
3936void 4289void
3937ev_idle_start (EV_P_ ev_idle *w) 4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3938{ 4291{
3939 if (expect_false (ev_is_active (w))) 4292 if (expect_false (ev_is_active (w)))
3940 return; 4293 return;
3941 4294
3942 pri_adjust (EV_A_ (W)w); 4295 pri_adjust (EV_A_ (W)w);
… …
3955 4308
3956 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3957} 4310}
3958 4311
3959void 4312void
3960ev_idle_stop (EV_P_ ev_idle *w) 4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3961{ 4314{
3962 clear_pending (EV_A_ (W)w); 4315 clear_pending (EV_A_ (W)w);
3963 if (expect_false (!ev_is_active (w))) 4316 if (expect_false (!ev_is_active (w)))
3964 return; 4317 return;
3965 4318
… …
3979} 4332}
3980#endif 4333#endif
3981 4334
3982#if EV_PREPARE_ENABLE 4335#if EV_PREPARE_ENABLE
3983void 4336void
3984ev_prepare_start (EV_P_ ev_prepare *w) 4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3985{ 4338{
3986 if (expect_false (ev_is_active (w))) 4339 if (expect_false (ev_is_active (w)))
3987 return; 4340 return;
3988 4341
3989 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
… …
3994 4347
3995 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3996} 4349}
3997 4350
3998void 4351void
3999ev_prepare_stop (EV_P_ ev_prepare *w) 4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4000{ 4353{
4001 clear_pending (EV_A_ (W)w); 4354 clear_pending (EV_A_ (W)w);
4002 if (expect_false (!ev_is_active (w))) 4355 if (expect_false (!ev_is_active (w)))
4003 return; 4356 return;
4004 4357
… …
4017} 4370}
4018#endif 4371#endif
4019 4372
4020#if EV_CHECK_ENABLE 4373#if EV_CHECK_ENABLE
4021void 4374void
4022ev_check_start (EV_P_ ev_check *w) 4375ev_check_start (EV_P_ ev_check *w) EV_THROW
4023{ 4376{
4024 if (expect_false (ev_is_active (w))) 4377 if (expect_false (ev_is_active (w)))
4025 return; 4378 return;
4026 4379
4027 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
… …
4032 4385
4033 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
4034} 4387}
4035 4388
4036void 4389void
4037ev_check_stop (EV_P_ ev_check *w) 4390ev_check_stop (EV_P_ ev_check *w) EV_THROW
4038{ 4391{
4039 clear_pending (EV_A_ (W)w); 4392 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4393 if (expect_false (!ev_is_active (w)))
4041 return; 4394 return;
4042 4395
… …
4055} 4408}
4056#endif 4409#endif
4057 4410
4058#if EV_EMBED_ENABLE 4411#if EV_EMBED_ENABLE
4059void noinline 4412void noinline
4060ev_embed_sweep (EV_P_ ev_embed *w) 4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4061{ 4414{
4062 ev_run (w->other, EVRUN_NOWAIT); 4415 ev_run (w->other, EVRUN_NOWAIT);
4063} 4416}
4064 4417
4065static void 4418static void
… …
4113 ev_idle_stop (EV_A_ idle); 4466 ev_idle_stop (EV_A_ idle);
4114} 4467}
4115#endif 4468#endif
4116 4469
4117void 4470void
4118ev_embed_start (EV_P_ ev_embed *w) 4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4119{ 4472{
4120 if (expect_false (ev_is_active (w))) 4473 if (expect_false (ev_is_active (w)))
4121 return; 4474 return;
4122 4475
4123 { 4476 {
… …
4144 4497
4145 EV_FREQUENT_CHECK; 4498 EV_FREQUENT_CHECK;
4146} 4499}
4147 4500
4148void 4501void
4149ev_embed_stop (EV_P_ ev_embed *w) 4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4150{ 4503{
4151 clear_pending (EV_A_ (W)w); 4504 clear_pending (EV_A_ (W)w);
4152 if (expect_false (!ev_is_active (w))) 4505 if (expect_false (!ev_is_active (w)))
4153 return; 4506 return;
4154 4507
… …
4164} 4517}
4165#endif 4518#endif
4166 4519
4167#if EV_FORK_ENABLE 4520#if EV_FORK_ENABLE
4168void 4521void
4169ev_fork_start (EV_P_ ev_fork *w) 4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4170{ 4523{
4171 if (expect_false (ev_is_active (w))) 4524 if (expect_false (ev_is_active (w)))
4172 return; 4525 return;
4173 4526
4174 EV_FREQUENT_CHECK; 4527 EV_FREQUENT_CHECK;
… …
4179 4532
4180 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
4181} 4534}
4182 4535
4183void 4536void
4184ev_fork_stop (EV_P_ ev_fork *w) 4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4185{ 4538{
4186 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
4187 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
4188 return; 4541 return;
4189 4542
… …
4202} 4555}
4203#endif 4556#endif
4204 4557
4205#if EV_CLEANUP_ENABLE 4558#if EV_CLEANUP_ENABLE
4206void 4559void
4207ev_cleanup_start (EV_P_ ev_cleanup *w) 4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4208{ 4561{
4209 if (expect_false (ev_is_active (w))) 4562 if (expect_false (ev_is_active (w)))
4210 return; 4563 return;
4211 4564
4212 EV_FREQUENT_CHECK; 4565 EV_FREQUENT_CHECK;
… …
4219 ev_unref (EV_A); 4572 ev_unref (EV_A);
4220 EV_FREQUENT_CHECK; 4573 EV_FREQUENT_CHECK;
4221} 4574}
4222 4575
4223void 4576void
4224ev_cleanup_stop (EV_P_ ev_cleanup *w) 4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4225{ 4578{
4226 clear_pending (EV_A_ (W)w); 4579 clear_pending (EV_A_ (W)w);
4227 if (expect_false (!ev_is_active (w))) 4580 if (expect_false (!ev_is_active (w)))
4228 return; 4581 return;
4229 4582
… …
4243} 4596}
4244#endif 4597#endif
4245 4598
4246#if EV_ASYNC_ENABLE 4599#if EV_ASYNC_ENABLE
4247void 4600void
4248ev_async_start (EV_P_ ev_async *w) 4601ev_async_start (EV_P_ ev_async *w) EV_THROW
4249{ 4602{
4250 if (expect_false (ev_is_active (w))) 4603 if (expect_false (ev_is_active (w)))
4251 return; 4604 return;
4252 4605
4253 w->sent = 0; 4606 w->sent = 0;
… …
4262 4615
4263 EV_FREQUENT_CHECK; 4616 EV_FREQUENT_CHECK;
4264} 4617}
4265 4618
4266void 4619void
4267ev_async_stop (EV_P_ ev_async *w) 4620ev_async_stop (EV_P_ ev_async *w) EV_THROW
4268{ 4621{
4269 clear_pending (EV_A_ (W)w); 4622 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4623 if (expect_false (!ev_is_active (w)))
4271 return; 4624 return;
4272 4625
… …
4283 4636
4284 EV_FREQUENT_CHECK; 4637 EV_FREQUENT_CHECK;
4285} 4638}
4286 4639
4287void 4640void
4288ev_async_send (EV_P_ ev_async *w) 4641ev_async_send (EV_P_ ev_async *w) EV_THROW
4289{ 4642{
4290 w->sent = 1; 4643 w->sent = 1;
4291 evpipe_write (EV_A_ &async_pending); 4644 evpipe_write (EV_A_ &async_pending);
4292} 4645}
4293#endif 4646#endif
… …
4330 4683
4331 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));
4332} 4685}
4333 4686
4334void 4687void
4335ev_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
4336{ 4689{
4337 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));
4338 4691
4339 if (expect_false (!once)) 4692 if (expect_false (!once))
4340 { 4693 {
… …
4362 4715
4363/*****************************************************************************/ 4716/*****************************************************************************/
4364 4717
4365#if EV_WALK_ENABLE 4718#if EV_WALK_ENABLE
4366void ecb_cold 4719void ecb_cold
4367ev_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
4368{ 4721{
4369 int i, j; 4722 int i, j;
4370 ev_watcher_list *wl, *wn; 4723 ev_watcher_list *wl, *wn;
4371 4724
4372 if (types & (EV_IO | EV_EMBED)) 4725 if (types & (EV_IO | EV_EMBED))

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