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Comparing libev/ev.c (file contents):
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC vs.
Revision 1.456 by root, Thu Jul 4 22:32:23 2013 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
201# include <sys/wait.h> 201# include <sys/wait.h>
202# include <unistd.h> 202# include <unistd.h>
203#else 203#else
204# include <io.h> 204# include <io.h>
205# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
206# include <windows.h> 207# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
209# endif 210# endif
210# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
219#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
220 221
221/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
222 223
223/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
224#if defined (EV_NSIG) 225#if defined EV_NSIG
225/* use what's provided */ 226/* use what's provided */
226#elif defined (NSIG) 227#elif defined NSIG
227# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
228#elif defined(_NSIG) 229#elif defined _NSIG
229# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
230#elif defined (SIGMAX) 231#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
232#elif defined (SIG_MAX) 233#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
234#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
236#elif defined (MAXSIG) 237#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
238#elif defined (MAX_SIG) 239#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
240#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined (_sys_nsig) 243#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else 245#else
245# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
246/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
… …
259# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
260# endif 261# endif
261#endif 262#endif
262 263
263#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
266# else 267# else
267# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
268# endif 269# endif
269#endif 270#endif
… …
356 357
357#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 360#endif
360 361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
376#endif
377
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
362/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 381# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 384# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 385# define EV_USE_MONOTONIC 1
369# else 386# else
… …
372# endif 389# endif
373#endif 390#endif
374 391
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376 393
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
383#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
386#endif 397#endif
387 398
… …
395# define EV_USE_INOTIFY 0 406# define EV_USE_INOTIFY 0
396#endif 407#endif
397 408
398#if !EV_USE_NANOSLEEP 409#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 410/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 411# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 412# include <sys/select.h>
402# endif 413# endif
403#endif 414#endif
404 415
405#if EV_USE_INOTIFY 416#if EV_USE_INOTIFY
… …
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 419/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 420# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 421# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 422# define EV_USE_INOTIFY 0
412# endif 423# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 424#endif
418 425
419#if EV_USE_EVENTFD 426#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 428# include <stdint.h>
… …
507 */ 514 */
508 515
509#ifndef ECB_H 516#ifndef ECB_H
510#define ECB_H 517#define ECB_H
511 518
519/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003
521
512#ifdef _WIN32 522#ifdef _WIN32
513 typedef signed char int8_t; 523 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 524 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 525 typedef signed short int16_t;
516 typedef unsigned short uint16_t; 526 typedef unsigned short uint16_t;
… …
521 typedef unsigned long long uint64_t; 531 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 532 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 533 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 534 typedef unsigned __int64 uint64_t;
525 #endif 535 #endif
536 #ifdef _WIN64
537 #define ECB_PTRSIZE 8
538 typedef uint64_t uintptr_t;
539 typedef int64_t intptr_t;
540 #else
541 #define ECB_PTRSIZE 4
542 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t;
544 #endif
526#else 545#else
527 #include <inttypes.h> 546 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU
548 #define ECB_PTRSIZE 8
549 #else
550 #define ECB_PTRSIZE 4
551 #endif
552#endif
553
554/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64
556 #if __ILP32
557 #define ECB_AMD64_X32 1
558 #else
559 #define ECB_AMD64 1
560 #endif
528#endif 561#endif
529 562
530/* many compilers define _GNUC_ to some versions but then only implement 563/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 564 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 565 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 566 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 567 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place. 568 * an issue with that they should have done it right in the first place.
536 */ 569 */
537#ifndef ECB_GCC_VERSION 570#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 572 #define ECB_GCC_VERSION(major,minor) 0
540 #else 573 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 575 #endif
543#endif 576#endif
544 577
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
579#define ECB_C99 (__STDC_VERSION__ >= 199901L)
580#define ECB_C11 (__STDC_VERSION__ >= 201112L)
581#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L)
583
584#if ECB_CPP
585 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END }
588#else
589 #define ECB_EXTERN_C extern
590 #define ECB_EXTERN_C_BEG
591 #define ECB_EXTERN_C_END
592#endif
593
545/*****************************************************************************/ 594/*****************************************************************************/
546 595
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 596/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 597/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 598
550#if ECB_NO_THREADS 599#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 600 #define ECB_NO_SMP 1
552#endif 601#endif
553 602
554#if ECB_NO_THREADS || ECB_NO_SMP 603#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 604 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 605#endif
557 606
558#ifndef ECB_MEMORY_FENCE 607#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 609 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 625 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 629 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 631 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
584 #endif 642 #endif
585 #endif 643 #endif
586#endif 644#endif
587 645
588#ifndef ECB_MEMORY_FENCE 646#ifndef ECB_MEMORY_FENCE
647 #if ECB_GCC_VERSION(4,7)
648 /* see comment below (stdatomic.h) about the C11 memory model. */
649 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
650
651 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
652 * without risking compile time errors with other compilers. We *could*
653 * define our own ecb_clang_has_feature, but I just can't be bothered to work
654 * around this shit time and again.
655 * #elif defined __clang && __has_feature (cxx_atomic)
656 * // see comment below (stdatomic.h) about the C11 memory model.
657 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
658 */
659
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 660 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 661 #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 */ 662 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 663 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 664 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 665 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 666 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 667 #elif defined _WIN32
599 #include <WinNT.h> 668 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 669 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 670 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 671 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 672 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 673 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 674 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
675 #elif __xlC__
676 #define ECB_MEMORY_FENCE __sync ()
677 #endif
678#endif
679
680#ifndef ECB_MEMORY_FENCE
681 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
682 /* we assume that these memory fences work on all variables/all memory accesses, */
683 /* not just C11 atomics and atomic accesses */
684 #include <stdatomic.h>
685 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
686 /* any fence other than seq_cst, which isn't very efficient for us. */
687 /* Why that is, we don't know - either the C11 memory model is quite useless */
688 /* for most usages, or gcc and clang have a bug */
689 /* I *currently* lean towards the latter, and inefficiently implement */
690 /* all three of ecb's fences as a seq_cst fence */
691 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
606 #endif 692 #endif
607#endif 693#endif
608 694
609#ifndef ECB_MEMORY_FENCE 695#ifndef ECB_MEMORY_FENCE
610 #if !ECB_AVOID_PTHREADS 696 #if !ECB_AVOID_PTHREADS
… …
622 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 708 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
623 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 709 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
624 #endif 710 #endif
625#endif 711#endif
626 712
627#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 713#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
628 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 714 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
629#endif 715#endif
630 716
631#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 717#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 718 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
633#endif 719#endif
634 720
635/*****************************************************************************/ 721/*****************************************************************************/
636
637#define ECB_C99 (__STDC_VERSION__ >= 199901L)
638 722
639#if __cplusplus 723#if __cplusplus
640 #define ecb_inline static inline 724 #define ecb_inline static inline
641#elif ECB_GCC_VERSION(2,5) 725#elif ECB_GCC_VERSION(2,5)
642 #define ecb_inline static __inline__ 726 #define ecb_inline static __inline__
… …
681#elif ECB_GCC_VERSION(3,0) 765#elif ECB_GCC_VERSION(3,0)
682 #define ecb_decltype(x) __typeof(x) 766 #define ecb_decltype(x) __typeof(x)
683#endif 767#endif
684 768
685#define ecb_noinline ecb_attribute ((__noinline__)) 769#define ecb_noinline ecb_attribute ((__noinline__))
686#define ecb_noreturn ecb_attribute ((__noreturn__))
687#define ecb_unused ecb_attribute ((__unused__)) 770#define ecb_unused ecb_attribute ((__unused__))
688#define ecb_const ecb_attribute ((__const__)) 771#define ecb_const ecb_attribute ((__const__))
689#define ecb_pure ecb_attribute ((__pure__)) 772#define ecb_pure ecb_attribute ((__pure__))
773
774#if ECB_C11
775 #define ecb_noreturn _Noreturn
776#else
777 #define ecb_noreturn ecb_attribute ((__noreturn__))
778#endif
690 779
691#if ECB_GCC_VERSION(4,3) 780#if ECB_GCC_VERSION(4,3)
692 #define ecb_artificial ecb_attribute ((__artificial__)) 781 #define ecb_artificial ecb_attribute ((__artificial__))
693 #define ecb_hot ecb_attribute ((__hot__)) 782 #define ecb_hot ecb_attribute ((__hot__))
694 #define ecb_cold ecb_attribute ((__cold__)) 783 #define ecb_cold ecb_attribute ((__cold__))
… …
785 874
786 return r + ecb_ld32 (x); 875 return r + ecb_ld32 (x);
787 } 876 }
788#endif 877#endif
789 878
879ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
880ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
881ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
882ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
883
790ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 884ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 885ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
792{ 886{
793 return ( (x * 0x0802U & 0x22110U) 887 return ( (x * 0x0802U & 0x22110U)
794 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 888 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
878 ecb_inline void ecb_unreachable (void) ecb_noreturn; 972 ecb_inline void ecb_unreachable (void) ecb_noreturn;
879 ecb_inline void ecb_unreachable (void) { } 973 ecb_inline void ecb_unreachable (void) { }
880#endif 974#endif
881 975
882/* try to tell the compiler that some condition is definitely true */ 976/* try to tell the compiler that some condition is definitely true */
883#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 977#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
884 978
885ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 979ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
886ecb_inline unsigned char 980ecb_inline unsigned char
887ecb_byteorder_helper (void) 981ecb_byteorder_helper (void)
888{ 982{
889 const uint32_t u = 0x11223344; 983 /* the union code still generates code under pressure in gcc, */
890 return *(unsigned char *)&u; 984 /* but less than using pointers, and always seems to */
985 /* successfully return a constant. */
986 /* the reason why we have this horrible preprocessor mess */
987 /* is to avoid it in all cases, at least on common architectures */
988 /* or when using a recent enough gcc version (>= 4.6) */
989#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
990 return 0x44;
991#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
992 return 0x44;
993#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
994 return 0x11;
995#else
996 union
997 {
998 uint32_t i;
999 uint8_t c;
1000 } u = { 0x11223344 };
1001 return u.c;
1002#endif
891} 1003}
892 1004
893ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1005ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
894ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1006ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
895ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1007ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
926 } 1038 }
927#else 1039#else
928 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1040 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
929#endif 1041#endif
930 1042
1043/*******************************************************************************/
1044/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1045
1046/* basically, everything uses "ieee pure-endian" floating point numbers */
1047/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1048#if 0 \
1049 || __i386 || __i386__ \
1050 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1051 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1052 || defined __arm__ && defined __ARM_EABI__ \
1053 || defined __s390__ || defined __s390x__ \
1054 || defined __mips__ \
1055 || defined __alpha__ \
1056 || defined __hppa__ \
1057 || defined __ia64__ \
1058 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1059 #define ECB_STDFP 1
1060 #include <string.h> /* for memcpy */
1061#else
1062 #define ECB_STDFP 0
1063 #include <math.h> /* for frexp*, ldexp* */
1064#endif
1065
1066#ifndef ECB_NO_LIBM
1067
1068 /* convert a float to ieee single/binary32 */
1069 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1070 ecb_function_ uint32_t
1071 ecb_float_to_binary32 (float x)
1072 {
1073 uint32_t r;
1074
1075 #if ECB_STDFP
1076 memcpy (&r, &x, 4);
1077 #else
1078 /* slow emulation, works for anything but -0 */
1079 uint32_t m;
1080 int e;
1081
1082 if (x == 0e0f ) return 0x00000000U;
1083 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1084 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1085 if (x != x ) return 0x7fbfffffU;
1086
1087 m = frexpf (x, &e) * 0x1000000U;
1088
1089 r = m & 0x80000000U;
1090
1091 if (r)
1092 m = -m;
1093
1094 if (e <= -126)
1095 {
1096 m &= 0xffffffU;
1097 m >>= (-125 - e);
1098 e = -126;
1099 }
1100
1101 r |= (e + 126) << 23;
1102 r |= m & 0x7fffffU;
1103 #endif
1104
1105 return r;
1106 }
1107
1108 /* converts an ieee single/binary32 to a float */
1109 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1110 ecb_function_ float
1111 ecb_binary32_to_float (uint32_t x)
1112 {
1113 float r;
1114
1115 #if ECB_STDFP
1116 memcpy (&r, &x, 4);
1117 #else
1118 /* emulation, only works for normals and subnormals and +0 */
1119 int neg = x >> 31;
1120 int e = (x >> 23) & 0xffU;
1121
1122 x &= 0x7fffffU;
1123
1124 if (e)
1125 x |= 0x800000U;
1126 else
1127 e = 1;
1128
1129 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1130 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1131
1132 r = neg ? -r : r;
1133 #endif
1134
1135 return r;
1136 }
1137
1138 /* convert a double to ieee double/binary64 */
1139 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1140 ecb_function_ uint64_t
1141 ecb_double_to_binary64 (double x)
1142 {
1143 uint64_t r;
1144
1145 #if ECB_STDFP
1146 memcpy (&r, &x, 8);
1147 #else
1148 /* slow emulation, works for anything but -0 */
1149 uint64_t m;
1150 int e;
1151
1152 if (x == 0e0 ) return 0x0000000000000000U;
1153 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1154 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1155 if (x != x ) return 0X7ff7ffffffffffffU;
1156
1157 m = frexp (x, &e) * 0x20000000000000U;
1158
1159 r = m & 0x8000000000000000;;
1160
1161 if (r)
1162 m = -m;
1163
1164 if (e <= -1022)
1165 {
1166 m &= 0x1fffffffffffffU;
1167 m >>= (-1021 - e);
1168 e = -1022;
1169 }
1170
1171 r |= ((uint64_t)(e + 1022)) << 52;
1172 r |= m & 0xfffffffffffffU;
1173 #endif
1174
1175 return r;
1176 }
1177
1178 /* converts an ieee double/binary64 to a double */
1179 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1180 ecb_function_ double
1181 ecb_binary64_to_double (uint64_t x)
1182 {
1183 double r;
1184
1185 #if ECB_STDFP
1186 memcpy (&r, &x, 8);
1187 #else
1188 /* emulation, only works for normals and subnormals and +0 */
1189 int neg = x >> 63;
1190 int e = (x >> 52) & 0x7ffU;
1191
1192 x &= 0xfffffffffffffU;
1193
1194 if (e)
1195 x |= 0x10000000000000U;
1196 else
1197 e = 1;
1198
1199 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1200 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1201
1202 r = neg ? -r : r;
1203 #endif
1204
1205 return r;
1206 }
1207
1208#endif
1209
931#endif 1210#endif
932 1211
933/* ECB.H END */ 1212/* ECB.H END */
934 1213
935#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1214#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1101{ 1380{
1102 write (STDERR_FILENO, msg, strlen (msg)); 1381 write (STDERR_FILENO, msg, strlen (msg));
1103} 1382}
1104#endif 1383#endif
1105 1384
1106static void (*syserr_cb)(const char *msg); 1385static void (*syserr_cb)(const char *msg) EV_THROW;
1107 1386
1108void ecb_cold 1387void ecb_cold
1109ev_set_syserr_cb (void (*cb)(const char *msg)) 1388ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1110{ 1389{
1111 syserr_cb = cb; 1390 syserr_cb = cb;
1112} 1391}
1113 1392
1114static void noinline ecb_cold 1393static void noinline ecb_cold
… …
1132 abort (); 1411 abort ();
1133 } 1412 }
1134} 1413}
1135 1414
1136static void * 1415static void *
1137ev_realloc_emul (void *ptr, long size) 1416ev_realloc_emul (void *ptr, long size) EV_THROW
1138{ 1417{
1139#if __GLIBC__
1140 return realloc (ptr, size);
1141#else
1142 /* some systems, notably openbsd and darwin, fail to properly 1418 /* some systems, notably openbsd and darwin, fail to properly
1143 * implement realloc (x, 0) (as required by both ansi c-89 and 1419 * implement realloc (x, 0) (as required by both ansi c-89 and
1144 * the single unix specification, so work around them here. 1420 * the single unix specification, so work around them here.
1421 * recently, also (at least) fedora and debian started breaking it,
1422 * despite documenting it otherwise.
1145 */ 1423 */
1146 1424
1147 if (size) 1425 if (size)
1148 return realloc (ptr, size); 1426 return realloc (ptr, size);
1149 1427
1150 free (ptr); 1428 free (ptr);
1151 return 0; 1429 return 0;
1152#endif
1153} 1430}
1154 1431
1155static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1432static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1156 1433
1157void ecb_cold 1434void ecb_cold
1158ev_set_allocator (void *(*cb)(void *ptr, long size)) 1435ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1159{ 1436{
1160 alloc = cb; 1437 alloc = cb;
1161} 1438}
1162 1439
1163inline_speed void * 1440inline_speed void *
… …
1280 1557
1281/*****************************************************************************/ 1558/*****************************************************************************/
1282 1559
1283#ifndef EV_HAVE_EV_TIME 1560#ifndef EV_HAVE_EV_TIME
1284ev_tstamp 1561ev_tstamp
1285ev_time (void) 1562ev_time (void) EV_THROW
1286{ 1563{
1287#if EV_USE_REALTIME 1564#if EV_USE_REALTIME
1288 if (expect_true (have_realtime)) 1565 if (expect_true (have_realtime))
1289 { 1566 {
1290 struct timespec ts; 1567 struct timespec ts;
… …
1314 return ev_time (); 1591 return ev_time ();
1315} 1592}
1316 1593
1317#if EV_MULTIPLICITY 1594#if EV_MULTIPLICITY
1318ev_tstamp 1595ev_tstamp
1319ev_now (EV_P) 1596ev_now (EV_P) EV_THROW
1320{ 1597{
1321 return ev_rt_now; 1598 return ev_rt_now;
1322} 1599}
1323#endif 1600#endif
1324 1601
1325void 1602void
1326ev_sleep (ev_tstamp delay) 1603ev_sleep (ev_tstamp delay) EV_THROW
1327{ 1604{
1328 if (delay > 0.) 1605 if (delay > 0.)
1329 { 1606 {
1330#if EV_USE_NANOSLEEP 1607#if EV_USE_NANOSLEEP
1331 struct timespec ts; 1608 struct timespec ts;
1332 1609
1333 EV_TS_SET (ts, delay); 1610 EV_TS_SET (ts, delay);
1334 nanosleep (&ts, 0); 1611 nanosleep (&ts, 0);
1335#elif defined(_WIN32) 1612#elif defined _WIN32
1336 Sleep ((unsigned long)(delay * 1e3)); 1613 Sleep ((unsigned long)(delay * 1e3));
1337#else 1614#else
1338 struct timeval tv; 1615 struct timeval tv;
1339 1616
1340 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1617 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1412pendingcb (EV_P_ ev_prepare *w, int revents) 1689pendingcb (EV_P_ ev_prepare *w, int revents)
1413{ 1690{
1414} 1691}
1415 1692
1416void noinline 1693void noinline
1417ev_feed_event (EV_P_ void *w, int revents) 1694ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1418{ 1695{
1419 W w_ = (W)w; 1696 W w_ = (W)w;
1420 int pri = ABSPRI (w_); 1697 int pri = ABSPRI (w_);
1421 1698
1422 if (expect_false (w_->pending)) 1699 if (expect_false (w_->pending))
… …
1426 w_->pending = ++pendingcnt [pri]; 1703 w_->pending = ++pendingcnt [pri];
1427 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1704 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1428 pendings [pri][w_->pending - 1].w = w_; 1705 pendings [pri][w_->pending - 1].w = w_;
1429 pendings [pri][w_->pending - 1].events = revents; 1706 pendings [pri][w_->pending - 1].events = revents;
1430 } 1707 }
1708
1709 pendingpri = NUMPRI - 1;
1431} 1710}
1432 1711
1433inline_speed void 1712inline_speed void
1434feed_reverse (EV_P_ W w) 1713feed_reverse (EV_P_ W w)
1435{ 1714{
… …
1481 if (expect_true (!anfd->reify)) 1760 if (expect_true (!anfd->reify))
1482 fd_event_nocheck (EV_A_ fd, revents); 1761 fd_event_nocheck (EV_A_ fd, revents);
1483} 1762}
1484 1763
1485void 1764void
1486ev_feed_fd_event (EV_P_ int fd, int revents) 1765ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1487{ 1766{
1488 if (fd >= 0 && fd < anfdmax) 1767 if (fd >= 0 && fd < anfdmax)
1489 fd_event_nocheck (EV_A_ fd, revents); 1768 fd_event_nocheck (EV_A_ fd, revents);
1490} 1769}
1491 1770
… …
1810static void noinline ecb_cold 2089static void noinline ecb_cold
1811evpipe_init (EV_P) 2090evpipe_init (EV_P)
1812{ 2091{
1813 if (!ev_is_active (&pipe_w)) 2092 if (!ev_is_active (&pipe_w))
1814 { 2093 {
2094 int fds [2];
2095
1815# if EV_USE_EVENTFD 2096# if EV_USE_EVENTFD
2097 fds [0] = -1;
1816 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2098 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1817 if (evfd < 0 && errno == EINVAL) 2099 if (fds [1] < 0 && errno == EINVAL)
1818 evfd = eventfd (0, 0); 2100 fds [1] = eventfd (0, 0);
1819 2101
1820 if (evfd >= 0) 2102 if (fds [1] < 0)
2103# endif
1821 { 2104 {
2105 while (pipe (fds))
2106 ev_syserr ("(libev) error creating signal/async pipe");
2107
2108 fd_intern (fds [0]);
2109 }
2110
1822 evpipe [0] = -1; 2111 evpipe [0] = fds [0];
1823 fd_intern (evfd); /* doing it twice doesn't hurt */ 2112
1824 ev_io_set (&pipe_w, evfd, EV_READ); 2113 if (evpipe [1] < 0)
2114 evpipe [1] = fds [1]; /* first call, set write fd */
2115 else
2116 {
2117 /* on subsequent calls, do not change evpipe [1] */
2118 /* so that evpipe_write can always rely on its value. */
2119 /* this branch does not do anything sensible on windows, */
2120 /* so must not be executed on windows */
2121
2122 dup2 (fds [1], evpipe [1]);
2123 close (fds [1]);
2124 }
2125
2126 fd_intern (evpipe [1]);
2127
2128 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2129 ev_io_start (EV_A_ &pipe_w);
2130 ev_unref (EV_A); /* watcher should not keep loop alive */
2131 }
2132}
2133
2134inline_speed void
2135evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2136{
2137 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2138
2139 if (expect_true (*flag))
2140 return;
2141
2142 *flag = 1;
2143 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2144
2145 pipe_write_skipped = 1;
2146
2147 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2148
2149 if (pipe_write_wanted)
2150 {
2151 int old_errno;
2152
2153 pipe_write_skipped = 0;
2154 ECB_MEMORY_FENCE_RELEASE;
2155
2156 old_errno = errno; /* save errno because write will clobber it */
2157
2158#if EV_USE_EVENTFD
2159 if (evpipe [0] < 0)
2160 {
2161 uint64_t counter = 1;
2162 write (evpipe [1], &counter, sizeof (uint64_t));
1825 } 2163 }
1826 else 2164 else
1827# endif 2165#endif
1828 { 2166 {
1829 while (pipe (evpipe)) 2167#ifdef _WIN32
1830 ev_syserr ("(libev) error creating signal/async pipe"); 2168 WSABUF buf;
1831 2169 DWORD sent;
1832 fd_intern (evpipe [0]); 2170 buf.buf = &buf;
1833 fd_intern (evpipe [1]); 2171 buf.len = 1;
1834 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2172 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1835 } 2173#else
1836
1837 ev_io_start (EV_A_ &pipe_w);
1838 ev_unref (EV_A); /* watcher should not keep loop alive */
1839 }
1840}
1841
1842inline_speed void
1843evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1844{
1845 if (expect_true (*flag))
1846 return;
1847
1848 *flag = 1;
1849
1850 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1851
1852 pipe_write_skipped = 1;
1853
1854 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1855
1856 if (pipe_write_wanted)
1857 {
1858 int old_errno;
1859
1860 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1861
1862 old_errno = errno; /* save errno because write will clobber it */
1863
1864#if EV_USE_EVENTFD
1865 if (evfd >= 0)
1866 {
1867 uint64_t counter = 1;
1868 write (evfd, &counter, sizeof (uint64_t));
1869 }
1870 else
1871#endif
1872 {
1873 /* win32 people keep sending patches that change this write() to send() */
1874 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1875 /* so when you think this write should be a send instead, please find out */
1876 /* where your send() is from - it's definitely not the microsoft send, and */
1877 /* tell me. thank you. */
1878 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1879 /* check the ev documentation on how to use this flag */
1880 write (evpipe [1], &(evpipe [1]), 1); 2174 write (evpipe [1], &(evpipe [1]), 1);
2175#endif
1881 } 2176 }
1882 2177
1883 errno = old_errno; 2178 errno = old_errno;
1884 } 2179 }
1885} 2180}
… …
1892 int i; 2187 int i;
1893 2188
1894 if (revents & EV_READ) 2189 if (revents & EV_READ)
1895 { 2190 {
1896#if EV_USE_EVENTFD 2191#if EV_USE_EVENTFD
1897 if (evfd >= 0) 2192 if (evpipe [0] < 0)
1898 { 2193 {
1899 uint64_t counter; 2194 uint64_t counter;
1900 read (evfd, &counter, sizeof (uint64_t)); 2195 read (evpipe [1], &counter, sizeof (uint64_t));
1901 } 2196 }
1902 else 2197 else
1903#endif 2198#endif
1904 { 2199 {
1905 char dummy; 2200 char dummy[4];
1906 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2201#ifdef _WIN32
2202 WSABUF buf;
2203 DWORD recvd;
2204 DWORD flags = 0;
2205 buf.buf = dummy;
2206 buf.len = sizeof (dummy);
2207 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2208#else
1907 read (evpipe [0], &dummy, 1); 2209 read (evpipe [0], &dummy, sizeof (dummy));
2210#endif
1908 } 2211 }
1909 } 2212 }
1910 2213
1911 pipe_write_skipped = 0; 2214 pipe_write_skipped = 0;
2215
2216 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1912 2217
1913#if EV_SIGNAL_ENABLE 2218#if EV_SIGNAL_ENABLE
1914 if (sig_pending) 2219 if (sig_pending)
1915 { 2220 {
1916 sig_pending = 0; 2221 sig_pending = 0;
2222
2223 ECB_MEMORY_FENCE;
1917 2224
1918 for (i = EV_NSIG - 1; i--; ) 2225 for (i = EV_NSIG - 1; i--; )
1919 if (expect_false (signals [i].pending)) 2226 if (expect_false (signals [i].pending))
1920 ev_feed_signal_event (EV_A_ i + 1); 2227 ev_feed_signal_event (EV_A_ i + 1);
1921 } 2228 }
… …
1923 2230
1924#if EV_ASYNC_ENABLE 2231#if EV_ASYNC_ENABLE
1925 if (async_pending) 2232 if (async_pending)
1926 { 2233 {
1927 async_pending = 0; 2234 async_pending = 0;
2235
2236 ECB_MEMORY_FENCE;
1928 2237
1929 for (i = asynccnt; i--; ) 2238 for (i = asynccnt; i--; )
1930 if (asyncs [i]->sent) 2239 if (asyncs [i]->sent)
1931 { 2240 {
1932 asyncs [i]->sent = 0; 2241 asyncs [i]->sent = 0;
2242 ECB_MEMORY_FENCE_RELEASE;
1933 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2243 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1934 } 2244 }
1935 } 2245 }
1936#endif 2246#endif
1937} 2247}
1938 2248
1939/*****************************************************************************/ 2249/*****************************************************************************/
1940 2250
1941void 2251void
1942ev_feed_signal (int signum) 2252ev_feed_signal (int signum) EV_THROW
1943{ 2253{
1944#if EV_MULTIPLICITY 2254#if EV_MULTIPLICITY
2255 EV_P;
2256 ECB_MEMORY_FENCE_ACQUIRE;
1945 EV_P = signals [signum - 1].loop; 2257 EV_A = signals [signum - 1].loop;
1946 2258
1947 if (!EV_A) 2259 if (!EV_A)
1948 return; 2260 return;
1949#endif 2261#endif
1950 2262
1951 if (!ev_active (&pipe_w))
1952 return;
1953
1954 signals [signum - 1].pending = 1; 2263 signals [signum - 1].pending = 1;
1955 evpipe_write (EV_A_ &sig_pending); 2264 evpipe_write (EV_A_ &sig_pending);
1956} 2265}
1957 2266
1958static void 2267static void
… …
1964 2273
1965 ev_feed_signal (signum); 2274 ev_feed_signal (signum);
1966} 2275}
1967 2276
1968void noinline 2277void noinline
1969ev_feed_signal_event (EV_P_ int signum) 2278ev_feed_signal_event (EV_P_ int signum) EV_THROW
1970{ 2279{
1971 WL w; 2280 WL w;
1972 2281
1973 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2282 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1974 return; 2283 return;
1975 2284
1976 --signum; 2285 --signum;
1977 2286
1978#if EV_MULTIPLICITY 2287#if EV_MULTIPLICITY
… …
1982 if (expect_false (signals [signum].loop != EV_A)) 2291 if (expect_false (signals [signum].loop != EV_A))
1983 return; 2292 return;
1984#endif 2293#endif
1985 2294
1986 signals [signum].pending = 0; 2295 signals [signum].pending = 0;
2296 ECB_MEMORY_FENCE_RELEASE;
1987 2297
1988 for (w = signals [signum].head; w; w = w->next) 2298 for (w = signals [signum].head; w; w = w->next)
1989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2299 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1990} 2300}
1991 2301
… …
2090#if EV_USE_SELECT 2400#if EV_USE_SELECT
2091# include "ev_select.c" 2401# include "ev_select.c"
2092#endif 2402#endif
2093 2403
2094int ecb_cold 2404int ecb_cold
2095ev_version_major (void) 2405ev_version_major (void) EV_THROW
2096{ 2406{
2097 return EV_VERSION_MAJOR; 2407 return EV_VERSION_MAJOR;
2098} 2408}
2099 2409
2100int ecb_cold 2410int ecb_cold
2101ev_version_minor (void) 2411ev_version_minor (void) EV_THROW
2102{ 2412{
2103 return EV_VERSION_MINOR; 2413 return EV_VERSION_MINOR;
2104} 2414}
2105 2415
2106/* return true if we are running with elevated privileges and should ignore env variables */ 2416/* return true if we are running with elevated privileges and should ignore env variables */
… …
2114 || getgid () != getegid (); 2424 || getgid () != getegid ();
2115#endif 2425#endif
2116} 2426}
2117 2427
2118unsigned int ecb_cold 2428unsigned int ecb_cold
2119ev_supported_backends (void) 2429ev_supported_backends (void) EV_THROW
2120{ 2430{
2121 unsigned int flags = 0; 2431 unsigned int flags = 0;
2122 2432
2123 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2433 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2124 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2434 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2128 2438
2129 return flags; 2439 return flags;
2130} 2440}
2131 2441
2132unsigned int ecb_cold 2442unsigned int ecb_cold
2133ev_recommended_backends (void) 2443ev_recommended_backends (void) EV_THROW
2134{ 2444{
2135 unsigned int flags = ev_supported_backends (); 2445 unsigned int flags = ev_supported_backends ();
2136 2446
2137#ifndef __NetBSD__ 2447#ifndef __NetBSD__
2138 /* kqueue is borked on everything but netbsd apparently */ 2448 /* kqueue is borked on everything but netbsd apparently */
… …
2150 2460
2151 return flags; 2461 return flags;
2152} 2462}
2153 2463
2154unsigned int ecb_cold 2464unsigned int ecb_cold
2155ev_embeddable_backends (void) 2465ev_embeddable_backends (void) EV_THROW
2156{ 2466{
2157 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2467 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2158 2468
2159 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2469 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2160 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2470 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2162 2472
2163 return flags; 2473 return flags;
2164} 2474}
2165 2475
2166unsigned int 2476unsigned int
2167ev_backend (EV_P) 2477ev_backend (EV_P) EV_THROW
2168{ 2478{
2169 return backend; 2479 return backend;
2170} 2480}
2171 2481
2172#if EV_FEATURE_API 2482#if EV_FEATURE_API
2173unsigned int 2483unsigned int
2174ev_iteration (EV_P) 2484ev_iteration (EV_P) EV_THROW
2175{ 2485{
2176 return loop_count; 2486 return loop_count;
2177} 2487}
2178 2488
2179unsigned int 2489unsigned int
2180ev_depth (EV_P) 2490ev_depth (EV_P) EV_THROW
2181{ 2491{
2182 return loop_depth; 2492 return loop_depth;
2183} 2493}
2184 2494
2185void 2495void
2186ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2496ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2187{ 2497{
2188 io_blocktime = interval; 2498 io_blocktime = interval;
2189} 2499}
2190 2500
2191void 2501void
2192ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2502ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2193{ 2503{
2194 timeout_blocktime = interval; 2504 timeout_blocktime = interval;
2195} 2505}
2196 2506
2197void 2507void
2198ev_set_userdata (EV_P_ void *data) 2508ev_set_userdata (EV_P_ void *data) EV_THROW
2199{ 2509{
2200 userdata = data; 2510 userdata = data;
2201} 2511}
2202 2512
2203void * 2513void *
2204ev_userdata (EV_P) 2514ev_userdata (EV_P) EV_THROW
2205{ 2515{
2206 return userdata; 2516 return userdata;
2207} 2517}
2208 2518
2209void 2519void
2210ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2520ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2211{ 2521{
2212 invoke_cb = invoke_pending_cb; 2522 invoke_cb = invoke_pending_cb;
2213} 2523}
2214 2524
2215void 2525void
2216ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2526ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2217{ 2527{
2218 release_cb = release; 2528 release_cb = release;
2219 acquire_cb = acquire; 2529 acquire_cb = acquire;
2220} 2530}
2221#endif 2531#endif
2222 2532
2223/* initialise a loop structure, must be zero-initialised */ 2533/* initialise a loop structure, must be zero-initialised */
2224static void noinline ecb_cold 2534static void noinline ecb_cold
2225loop_init (EV_P_ unsigned int flags) 2535loop_init (EV_P_ unsigned int flags) EV_THROW
2226{ 2536{
2227 if (!backend) 2537 if (!backend)
2228 { 2538 {
2229 origflags = flags; 2539 origflags = flags;
2230 2540
… …
2275#if EV_ASYNC_ENABLE 2585#if EV_ASYNC_ENABLE
2276 async_pending = 0; 2586 async_pending = 0;
2277#endif 2587#endif
2278 pipe_write_skipped = 0; 2588 pipe_write_skipped = 0;
2279 pipe_write_wanted = 0; 2589 pipe_write_wanted = 0;
2590 evpipe [0] = -1;
2591 evpipe [1] = -1;
2280#if EV_USE_INOTIFY 2592#if EV_USE_INOTIFY
2281 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2593 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2282#endif 2594#endif
2283#if EV_USE_SIGNALFD 2595#if EV_USE_SIGNALFD
2284 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2596 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2335 EV_INVOKE_PENDING; 2647 EV_INVOKE_PENDING;
2336 } 2648 }
2337#endif 2649#endif
2338 2650
2339#if EV_CHILD_ENABLE 2651#if EV_CHILD_ENABLE
2340 if (ev_is_active (&childev)) 2652 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2341 { 2653 {
2342 ev_ref (EV_A); /* child watcher */ 2654 ev_ref (EV_A); /* child watcher */
2343 ev_signal_stop (EV_A_ &childev); 2655 ev_signal_stop (EV_A_ &childev);
2344 } 2656 }
2345#endif 2657#endif
… …
2347 if (ev_is_active (&pipe_w)) 2659 if (ev_is_active (&pipe_w))
2348 { 2660 {
2349 /*ev_ref (EV_A);*/ 2661 /*ev_ref (EV_A);*/
2350 /*ev_io_stop (EV_A_ &pipe_w);*/ 2662 /*ev_io_stop (EV_A_ &pipe_w);*/
2351 2663
2352#if EV_USE_EVENTFD
2353 if (evfd >= 0)
2354 close (evfd);
2355#endif
2356
2357 if (evpipe [0] >= 0)
2358 {
2359 EV_WIN32_CLOSE_FD (evpipe [0]); 2664 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2360 EV_WIN32_CLOSE_FD (evpipe [1]); 2665 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2361 }
2362 } 2666 }
2363 2667
2364#if EV_USE_SIGNALFD 2668#if EV_USE_SIGNALFD
2365 if (ev_is_active (&sigfd_w)) 2669 if (ev_is_active (&sigfd_w))
2366 close (sigfd); 2670 close (sigfd);
… …
2452#endif 2756#endif
2453#if EV_USE_INOTIFY 2757#if EV_USE_INOTIFY
2454 infy_fork (EV_A); 2758 infy_fork (EV_A);
2455#endif 2759#endif
2456 2760
2761#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2457 if (ev_is_active (&pipe_w)) 2762 if (ev_is_active (&pipe_w))
2458 { 2763 {
2459 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2764 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2460 2765
2461 ev_ref (EV_A); 2766 ev_ref (EV_A);
2462 ev_io_stop (EV_A_ &pipe_w); 2767 ev_io_stop (EV_A_ &pipe_w);
2463 2768
2464#if EV_USE_EVENTFD
2465 if (evfd >= 0)
2466 close (evfd);
2467#endif
2468
2469 if (evpipe [0] >= 0) 2769 if (evpipe [0] >= 0)
2470 {
2471 EV_WIN32_CLOSE_FD (evpipe [0]); 2770 EV_WIN32_CLOSE_FD (evpipe [0]);
2472 EV_WIN32_CLOSE_FD (evpipe [1]);
2473 }
2474 2771
2475#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476 evpipe_init (EV_A); 2772 evpipe_init (EV_A);
2477 /* now iterate over everything, in case we missed something */ 2773 /* iterate over everything, in case we missed something before */
2478 pipecb (EV_A_ &pipe_w, EV_READ); 2774 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2479#endif
2480 } 2775 }
2776#endif
2481 2777
2482 postfork = 0; 2778 postfork = 0;
2483} 2779}
2484 2780
2485#if EV_MULTIPLICITY 2781#if EV_MULTIPLICITY
2486 2782
2487struct ev_loop * ecb_cold 2783struct ev_loop * ecb_cold
2488ev_loop_new (unsigned int flags) 2784ev_loop_new (unsigned int flags) EV_THROW
2489{ 2785{
2490 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2786 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2491 2787
2492 memset (EV_A, 0, sizeof (struct ev_loop)); 2788 memset (EV_A, 0, sizeof (struct ev_loop));
2493 loop_init (EV_A_ flags); 2789 loop_init (EV_A_ flags);
… …
2537} 2833}
2538#endif 2834#endif
2539 2835
2540#if EV_FEATURE_API 2836#if EV_FEATURE_API
2541void ecb_cold 2837void ecb_cold
2542ev_verify (EV_P) 2838ev_verify (EV_P) EV_THROW
2543{ 2839{
2544#if EV_VERIFY 2840#if EV_VERIFY
2545 int i; 2841 int i;
2546 WL w; 2842 WL w, w2;
2547 2843
2548 assert (activecnt >= -1); 2844 assert (activecnt >= -1);
2549 2845
2550 assert (fdchangemax >= fdchangecnt); 2846 assert (fdchangemax >= fdchangecnt);
2551 for (i = 0; i < fdchangecnt; ++i) 2847 for (i = 0; i < fdchangecnt; ++i)
2552 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2848 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2553 2849
2554 assert (anfdmax >= 0); 2850 assert (anfdmax >= 0);
2555 for (i = 0; i < anfdmax; ++i) 2851 for (i = 0; i < anfdmax; ++i)
2852 {
2853 int j = 0;
2854
2556 for (w = anfds [i].head; w; w = w->next) 2855 for (w = w2 = anfds [i].head; w; w = w->next)
2557 { 2856 {
2558 verify_watcher (EV_A_ (W)w); 2857 verify_watcher (EV_A_ (W)w);
2858
2859 if (j++ & 1)
2860 {
2861 assert (("libev: io watcher list contains a loop", w != w2));
2862 w2 = w2->next;
2863 }
2864
2559 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2865 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2560 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2866 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2561 } 2867 }
2868 }
2562 2869
2563 assert (timermax >= timercnt); 2870 assert (timermax >= timercnt);
2564 verify_heap (EV_A_ timers, timercnt); 2871 verify_heap (EV_A_ timers, timercnt);
2565 2872
2566#if EV_PERIODIC_ENABLE 2873#if EV_PERIODIC_ENABLE
… …
2616#if EV_MULTIPLICITY 2923#if EV_MULTIPLICITY
2617struct ev_loop * ecb_cold 2924struct ev_loop * ecb_cold
2618#else 2925#else
2619int 2926int
2620#endif 2927#endif
2621ev_default_loop (unsigned int flags) 2928ev_default_loop (unsigned int flags) EV_THROW
2622{ 2929{
2623 if (!ev_default_loop_ptr) 2930 if (!ev_default_loop_ptr)
2624 { 2931 {
2625#if EV_MULTIPLICITY 2932#if EV_MULTIPLICITY
2626 EV_P = ev_default_loop_ptr = &default_loop_struct; 2933 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2645 2952
2646 return ev_default_loop_ptr; 2953 return ev_default_loop_ptr;
2647} 2954}
2648 2955
2649void 2956void
2650ev_loop_fork (EV_P) 2957ev_loop_fork (EV_P) EV_THROW
2651{ 2958{
2652 postfork = 1; /* must be in line with ev_default_fork */ 2959 postfork = 1;
2653} 2960}
2654 2961
2655/*****************************************************************************/ 2962/*****************************************************************************/
2656 2963
2657void 2964void
… …
2659{ 2966{
2660 EV_CB_INVOKE ((W)w, revents); 2967 EV_CB_INVOKE ((W)w, revents);
2661} 2968}
2662 2969
2663unsigned int 2970unsigned int
2664ev_pending_count (EV_P) 2971ev_pending_count (EV_P) EV_THROW
2665{ 2972{
2666 int pri; 2973 int pri;
2667 unsigned int count = 0; 2974 unsigned int count = 0;
2668 2975
2669 for (pri = NUMPRI; pri--; ) 2976 for (pri = NUMPRI; pri--; )
… …
2673} 2980}
2674 2981
2675void noinline 2982void noinline
2676ev_invoke_pending (EV_P) 2983ev_invoke_pending (EV_P)
2677{ 2984{
2678 int pri; 2985 pendingpri = NUMPRI;
2679 2986
2680 for (pri = NUMPRI; pri--; ) 2987 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2988 {
2989 --pendingpri;
2990
2681 while (pendingcnt [pri]) 2991 while (pendingcnt [pendingpri])
2682 { 2992 {
2683 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2993 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2684 2994
2685 p->w->pending = 0; 2995 p->w->pending = 0;
2686 EV_CB_INVOKE (p->w, p->events); 2996 EV_CB_INVOKE (p->w, p->events);
2687 EV_FREQUENT_CHECK; 2997 EV_FREQUENT_CHECK;
2688 } 2998 }
2999 }
2689} 3000}
2690 3001
2691#if EV_IDLE_ENABLE 3002#if EV_IDLE_ENABLE
2692/* make idle watchers pending. this handles the "call-idle */ 3003/* make idle watchers pending. this handles the "call-idle */
2693/* only when higher priorities are idle" logic */ 3004/* only when higher priorities are idle" logic */
… …
2783{ 3094{
2784 EV_FREQUENT_CHECK; 3095 EV_FREQUENT_CHECK;
2785 3096
2786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3097 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2787 { 3098 {
2788 int feed_count = 0;
2789
2790 do 3099 do
2791 { 3100 {
2792 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3101 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2793 3102
2794 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3103 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2928 3237
2929 mn_now = ev_rt_now; 3238 mn_now = ev_rt_now;
2930 } 3239 }
2931} 3240}
2932 3241
2933void 3242int
2934ev_run (EV_P_ int flags) 3243ev_run (EV_P_ int flags)
2935{ 3244{
2936#if EV_FEATURE_API 3245#if EV_FEATURE_API
2937 ++loop_depth; 3246 ++loop_depth;
2938#endif 3247#endif
… …
3053 backend_poll (EV_A_ waittime); 3362 backend_poll (EV_A_ waittime);
3054 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3363 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3055 3364
3056 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3365 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3057 3366
3367 ECB_MEMORY_FENCE_ACQUIRE;
3058 if (pipe_write_skipped) 3368 if (pipe_write_skipped)
3059 { 3369 {
3060 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3370 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3061 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3371 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3062 } 3372 }
… …
3095 loop_done = EVBREAK_CANCEL; 3405 loop_done = EVBREAK_CANCEL;
3096 3406
3097#if EV_FEATURE_API 3407#if EV_FEATURE_API
3098 --loop_depth; 3408 --loop_depth;
3099#endif 3409#endif
3410
3411 return activecnt;
3100} 3412}
3101 3413
3102void 3414void
3103ev_break (EV_P_ int how) 3415ev_break (EV_P_ int how) EV_THROW
3104{ 3416{
3105 loop_done = how; 3417 loop_done = how;
3106} 3418}
3107 3419
3108void 3420void
3109ev_ref (EV_P) 3421ev_ref (EV_P) EV_THROW
3110{ 3422{
3111 ++activecnt; 3423 ++activecnt;
3112} 3424}
3113 3425
3114void 3426void
3115ev_unref (EV_P) 3427ev_unref (EV_P) EV_THROW
3116{ 3428{
3117 --activecnt; 3429 --activecnt;
3118} 3430}
3119 3431
3120void 3432void
3121ev_now_update (EV_P) 3433ev_now_update (EV_P) EV_THROW
3122{ 3434{
3123 time_update (EV_A_ 1e100); 3435 time_update (EV_A_ 1e100);
3124} 3436}
3125 3437
3126void 3438void
3127ev_suspend (EV_P) 3439ev_suspend (EV_P) EV_THROW
3128{ 3440{
3129 ev_now_update (EV_A); 3441 ev_now_update (EV_A);
3130} 3442}
3131 3443
3132void 3444void
3133ev_resume (EV_P) 3445ev_resume (EV_P) EV_THROW
3134{ 3446{
3135 ev_tstamp mn_prev = mn_now; 3447 ev_tstamp mn_prev = mn_now;
3136 3448
3137 ev_now_update (EV_A); 3449 ev_now_update (EV_A);
3138 timers_reschedule (EV_A_ mn_now - mn_prev); 3450 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3177 w->pending = 0; 3489 w->pending = 0;
3178 } 3490 }
3179} 3491}
3180 3492
3181int 3493int
3182ev_clear_pending (EV_P_ void *w) 3494ev_clear_pending (EV_P_ void *w) EV_THROW
3183{ 3495{
3184 W w_ = (W)w; 3496 W w_ = (W)w;
3185 int pending = w_->pending; 3497 int pending = w_->pending;
3186 3498
3187 if (expect_true (pending)) 3499 if (expect_true (pending))
… …
3220} 3532}
3221 3533
3222/*****************************************************************************/ 3534/*****************************************************************************/
3223 3535
3224void noinline 3536void noinline
3225ev_io_start (EV_P_ ev_io *w) 3537ev_io_start (EV_P_ ev_io *w) EV_THROW
3226{ 3538{
3227 int fd = w->fd; 3539 int fd = w->fd;
3228 3540
3229 if (expect_false (ev_is_active (w))) 3541 if (expect_false (ev_is_active (w)))
3230 return; 3542 return;
… …
3236 3548
3237 ev_start (EV_A_ (W)w, 1); 3549 ev_start (EV_A_ (W)w, 1);
3238 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3550 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3239 wlist_add (&anfds[fd].head, (WL)w); 3551 wlist_add (&anfds[fd].head, (WL)w);
3240 3552
3553 /* common bug, apparently */
3554 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3555
3241 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3556 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3242 w->events &= ~EV__IOFDSET; 3557 w->events &= ~EV__IOFDSET;
3243 3558
3244 EV_FREQUENT_CHECK; 3559 EV_FREQUENT_CHECK;
3245} 3560}
3246 3561
3247void noinline 3562void noinline
3248ev_io_stop (EV_P_ ev_io *w) 3563ev_io_stop (EV_P_ ev_io *w) EV_THROW
3249{ 3564{
3250 clear_pending (EV_A_ (W)w); 3565 clear_pending (EV_A_ (W)w);
3251 if (expect_false (!ev_is_active (w))) 3566 if (expect_false (!ev_is_active (w)))
3252 return; 3567 return;
3253 3568
… …
3262 3577
3263 EV_FREQUENT_CHECK; 3578 EV_FREQUENT_CHECK;
3264} 3579}
3265 3580
3266void noinline 3581void noinline
3267ev_timer_start (EV_P_ ev_timer *w) 3582ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3268{ 3583{
3269 if (expect_false (ev_is_active (w))) 3584 if (expect_false (ev_is_active (w)))
3270 return; 3585 return;
3271 3586
3272 ev_at (w) += mn_now; 3587 ev_at (w) += mn_now;
… …
3286 3601
3287 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3602 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3288} 3603}
3289 3604
3290void noinline 3605void noinline
3291ev_timer_stop (EV_P_ ev_timer *w) 3606ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3292{ 3607{
3293 clear_pending (EV_A_ (W)w); 3608 clear_pending (EV_A_ (W)w);
3294 if (expect_false (!ev_is_active (w))) 3609 if (expect_false (!ev_is_active (w)))
3295 return; 3610 return;
3296 3611
… …
3316 3631
3317 EV_FREQUENT_CHECK; 3632 EV_FREQUENT_CHECK;
3318} 3633}
3319 3634
3320void noinline 3635void noinline
3321ev_timer_again (EV_P_ ev_timer *w) 3636ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3322{ 3637{
3323 EV_FREQUENT_CHECK; 3638 EV_FREQUENT_CHECK;
3324 3639
3325 clear_pending (EV_A_ (W)w); 3640 clear_pending (EV_A_ (W)w);
3326 3641
… …
3343 3658
3344 EV_FREQUENT_CHECK; 3659 EV_FREQUENT_CHECK;
3345} 3660}
3346 3661
3347ev_tstamp 3662ev_tstamp
3348ev_timer_remaining (EV_P_ ev_timer *w) 3663ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3349{ 3664{
3350 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3665 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3351} 3666}
3352 3667
3353#if EV_PERIODIC_ENABLE 3668#if EV_PERIODIC_ENABLE
3354void noinline 3669void noinline
3355ev_periodic_start (EV_P_ ev_periodic *w) 3670ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3356{ 3671{
3357 if (expect_false (ev_is_active (w))) 3672 if (expect_false (ev_is_active (w)))
3358 return; 3673 return;
3359 3674
3360 if (w->reschedule_cb) 3675 if (w->reschedule_cb)
… …
3380 3695
3381 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3696 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3382} 3697}
3383 3698
3384void noinline 3699void noinline
3385ev_periodic_stop (EV_P_ ev_periodic *w) 3700ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3386{ 3701{
3387 clear_pending (EV_A_ (W)w); 3702 clear_pending (EV_A_ (W)w);
3388 if (expect_false (!ev_is_active (w))) 3703 if (expect_false (!ev_is_active (w)))
3389 return; 3704 return;
3390 3705
… …
3408 3723
3409 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
3410} 3725}
3411 3726
3412void noinline 3727void noinline
3413ev_periodic_again (EV_P_ ev_periodic *w) 3728ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3414{ 3729{
3415 /* TODO: use adjustheap and recalculation */ 3730 /* TODO: use adjustheap and recalculation */
3416 ev_periodic_stop (EV_A_ w); 3731 ev_periodic_stop (EV_A_ w);
3417 ev_periodic_start (EV_A_ w); 3732 ev_periodic_start (EV_A_ w);
3418} 3733}
… …
3423#endif 3738#endif
3424 3739
3425#if EV_SIGNAL_ENABLE 3740#if EV_SIGNAL_ENABLE
3426 3741
3427void noinline 3742void noinline
3428ev_signal_start (EV_P_ ev_signal *w) 3743ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3429{ 3744{
3430 if (expect_false (ev_is_active (w))) 3745 if (expect_false (ev_is_active (w)))
3431 return; 3746 return;
3432 3747
3433 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3748 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3435#if EV_MULTIPLICITY 3750#if EV_MULTIPLICITY
3436 assert (("libev: a signal must not be attached to two different loops", 3751 assert (("libev: a signal must not be attached to two different loops",
3437 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3752 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3438 3753
3439 signals [w->signum - 1].loop = EV_A; 3754 signals [w->signum - 1].loop = EV_A;
3755 ECB_MEMORY_FENCE_RELEASE;
3440#endif 3756#endif
3441 3757
3442 EV_FREQUENT_CHECK; 3758 EV_FREQUENT_CHECK;
3443 3759
3444#if EV_USE_SIGNALFD 3760#if EV_USE_SIGNALFD
… …
3504 3820
3505 EV_FREQUENT_CHECK; 3821 EV_FREQUENT_CHECK;
3506} 3822}
3507 3823
3508void noinline 3824void noinline
3509ev_signal_stop (EV_P_ ev_signal *w) 3825ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3510{ 3826{
3511 clear_pending (EV_A_ (W)w); 3827 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 3828 if (expect_false (!ev_is_active (w)))
3513 return; 3829 return;
3514 3830
… …
3545#endif 3861#endif
3546 3862
3547#if EV_CHILD_ENABLE 3863#if EV_CHILD_ENABLE
3548 3864
3549void 3865void
3550ev_child_start (EV_P_ ev_child *w) 3866ev_child_start (EV_P_ ev_child *w) EV_THROW
3551{ 3867{
3552#if EV_MULTIPLICITY 3868#if EV_MULTIPLICITY
3553 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3869 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3554#endif 3870#endif
3555 if (expect_false (ev_is_active (w))) 3871 if (expect_false (ev_is_active (w)))
… …
3562 3878
3563 EV_FREQUENT_CHECK; 3879 EV_FREQUENT_CHECK;
3564} 3880}
3565 3881
3566void 3882void
3567ev_child_stop (EV_P_ ev_child *w) 3883ev_child_stop (EV_P_ ev_child *w) EV_THROW
3568{ 3884{
3569 clear_pending (EV_A_ (W)w); 3885 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 3886 if (expect_false (!ev_is_active (w)))
3571 return; 3887 return;
3572 3888
… …
3599# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3915# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3600 3916
3601static void noinline 3917static void noinline
3602infy_add (EV_P_ ev_stat *w) 3918infy_add (EV_P_ ev_stat *w)
3603{ 3919{
3604 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3920 w->wd = inotify_add_watch (fs_fd, w->path,
3921 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3922 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3923 | IN_DONT_FOLLOW | IN_MASK_ADD);
3605 3924
3606 if (w->wd >= 0) 3925 if (w->wd >= 0)
3607 { 3926 {
3608 struct statfs sfs; 3927 struct statfs sfs;
3609 3928
… …
3613 3932
3614 if (!fs_2625) 3933 if (!fs_2625)
3615 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3934 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3616 else if (!statfs (w->path, &sfs) 3935 else if (!statfs (w->path, &sfs)
3617 && (sfs.f_type == 0x1373 /* devfs */ 3936 && (sfs.f_type == 0x1373 /* devfs */
3937 || sfs.f_type == 0x4006 /* fat */
3938 || sfs.f_type == 0x4d44 /* msdos */
3618 || sfs.f_type == 0xEF53 /* ext2/3 */ 3939 || sfs.f_type == 0xEF53 /* ext2/3 */
3940 || sfs.f_type == 0x72b6 /* jffs2 */
3941 || sfs.f_type == 0x858458f6 /* ramfs */
3942 || sfs.f_type == 0x5346544e /* ntfs */
3619 || sfs.f_type == 0x3153464a /* jfs */ 3943 || sfs.f_type == 0x3153464a /* jfs */
3944 || sfs.f_type == 0x9123683e /* btrfs */
3620 || sfs.f_type == 0x52654973 /* reiser3 */ 3945 || sfs.f_type == 0x52654973 /* reiser3 */
3621 || sfs.f_type == 0x01021994 /* tempfs */ 3946 || sfs.f_type == 0x01021994 /* tmpfs */
3622 || sfs.f_type == 0x58465342 /* xfs */)) 3947 || sfs.f_type == 0x58465342 /* xfs */))
3623 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3948 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3624 else 3949 else
3625 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3950 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3626 } 3951 }
… …
3739} 4064}
3740 4065
3741inline_size int 4066inline_size int
3742infy_newfd (void) 4067infy_newfd (void)
3743{ 4068{
3744#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4069#if defined IN_CLOEXEC && defined IN_NONBLOCK
3745 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4070 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3746 if (fd >= 0) 4071 if (fd >= 0)
3747 return fd; 4072 return fd;
3748#endif 4073#endif
3749 return inotify_init (); 4074 return inotify_init ();
… …
3824#else 4149#else
3825# define EV_LSTAT(p,b) lstat (p, b) 4150# define EV_LSTAT(p,b) lstat (p, b)
3826#endif 4151#endif
3827 4152
3828void 4153void
3829ev_stat_stat (EV_P_ ev_stat *w) 4154ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3830{ 4155{
3831 if (lstat (w->path, &w->attr) < 0) 4156 if (lstat (w->path, &w->attr) < 0)
3832 w->attr.st_nlink = 0; 4157 w->attr.st_nlink = 0;
3833 else if (!w->attr.st_nlink) 4158 else if (!w->attr.st_nlink)
3834 w->attr.st_nlink = 1; 4159 w->attr.st_nlink = 1;
… …
3873 ev_feed_event (EV_A_ w, EV_STAT); 4198 ev_feed_event (EV_A_ w, EV_STAT);
3874 } 4199 }
3875} 4200}
3876 4201
3877void 4202void
3878ev_stat_start (EV_P_ ev_stat *w) 4203ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3879{ 4204{
3880 if (expect_false (ev_is_active (w))) 4205 if (expect_false (ev_is_active (w)))
3881 return; 4206 return;
3882 4207
3883 ev_stat_stat (EV_A_ w); 4208 ev_stat_stat (EV_A_ w);
… …
3904 4229
3905 EV_FREQUENT_CHECK; 4230 EV_FREQUENT_CHECK;
3906} 4231}
3907 4232
3908void 4233void
3909ev_stat_stop (EV_P_ ev_stat *w) 4234ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3910{ 4235{
3911 clear_pending (EV_A_ (W)w); 4236 clear_pending (EV_A_ (W)w);
3912 if (expect_false (!ev_is_active (w))) 4237 if (expect_false (!ev_is_active (w)))
3913 return; 4238 return;
3914 4239
… …
3930} 4255}
3931#endif 4256#endif
3932 4257
3933#if EV_IDLE_ENABLE 4258#if EV_IDLE_ENABLE
3934void 4259void
3935ev_idle_start (EV_P_ ev_idle *w) 4260ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3936{ 4261{
3937 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
3938 return; 4263 return;
3939 4264
3940 pri_adjust (EV_A_ (W)w); 4265 pri_adjust (EV_A_ (W)w);
… …
3953 4278
3954 EV_FREQUENT_CHECK; 4279 EV_FREQUENT_CHECK;
3955} 4280}
3956 4281
3957void 4282void
3958ev_idle_stop (EV_P_ ev_idle *w) 4283ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3959{ 4284{
3960 clear_pending (EV_A_ (W)w); 4285 clear_pending (EV_A_ (W)w);
3961 if (expect_false (!ev_is_active (w))) 4286 if (expect_false (!ev_is_active (w)))
3962 return; 4287 return;
3963 4288
… …
3977} 4302}
3978#endif 4303#endif
3979 4304
3980#if EV_PREPARE_ENABLE 4305#if EV_PREPARE_ENABLE
3981void 4306void
3982ev_prepare_start (EV_P_ ev_prepare *w) 4307ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3983{ 4308{
3984 if (expect_false (ev_is_active (w))) 4309 if (expect_false (ev_is_active (w)))
3985 return; 4310 return;
3986 4311
3987 EV_FREQUENT_CHECK; 4312 EV_FREQUENT_CHECK;
… …
3992 4317
3993 EV_FREQUENT_CHECK; 4318 EV_FREQUENT_CHECK;
3994} 4319}
3995 4320
3996void 4321void
3997ev_prepare_stop (EV_P_ ev_prepare *w) 4322ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3998{ 4323{
3999 clear_pending (EV_A_ (W)w); 4324 clear_pending (EV_A_ (W)w);
4000 if (expect_false (!ev_is_active (w))) 4325 if (expect_false (!ev_is_active (w)))
4001 return; 4326 return;
4002 4327
… …
4015} 4340}
4016#endif 4341#endif
4017 4342
4018#if EV_CHECK_ENABLE 4343#if EV_CHECK_ENABLE
4019void 4344void
4020ev_check_start (EV_P_ ev_check *w) 4345ev_check_start (EV_P_ ev_check *w) EV_THROW
4021{ 4346{
4022 if (expect_false (ev_is_active (w))) 4347 if (expect_false (ev_is_active (w)))
4023 return; 4348 return;
4024 4349
4025 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
… …
4030 4355
4031 EV_FREQUENT_CHECK; 4356 EV_FREQUENT_CHECK;
4032} 4357}
4033 4358
4034void 4359void
4035ev_check_stop (EV_P_ ev_check *w) 4360ev_check_stop (EV_P_ ev_check *w) EV_THROW
4036{ 4361{
4037 clear_pending (EV_A_ (W)w); 4362 clear_pending (EV_A_ (W)w);
4038 if (expect_false (!ev_is_active (w))) 4363 if (expect_false (!ev_is_active (w)))
4039 return; 4364 return;
4040 4365
… …
4053} 4378}
4054#endif 4379#endif
4055 4380
4056#if EV_EMBED_ENABLE 4381#if EV_EMBED_ENABLE
4057void noinline 4382void noinline
4058ev_embed_sweep (EV_P_ ev_embed *w) 4383ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4059{ 4384{
4060 ev_run (w->other, EVRUN_NOWAIT); 4385 ev_run (w->other, EVRUN_NOWAIT);
4061} 4386}
4062 4387
4063static void 4388static void
… …
4111 ev_idle_stop (EV_A_ idle); 4436 ev_idle_stop (EV_A_ idle);
4112} 4437}
4113#endif 4438#endif
4114 4439
4115void 4440void
4116ev_embed_start (EV_P_ ev_embed *w) 4441ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4117{ 4442{
4118 if (expect_false (ev_is_active (w))) 4443 if (expect_false (ev_is_active (w)))
4119 return; 4444 return;
4120 4445
4121 { 4446 {
… …
4142 4467
4143 EV_FREQUENT_CHECK; 4468 EV_FREQUENT_CHECK;
4144} 4469}
4145 4470
4146void 4471void
4147ev_embed_stop (EV_P_ ev_embed *w) 4472ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4148{ 4473{
4149 clear_pending (EV_A_ (W)w); 4474 clear_pending (EV_A_ (W)w);
4150 if (expect_false (!ev_is_active (w))) 4475 if (expect_false (!ev_is_active (w)))
4151 return; 4476 return;
4152 4477
… …
4162} 4487}
4163#endif 4488#endif
4164 4489
4165#if EV_FORK_ENABLE 4490#if EV_FORK_ENABLE
4166void 4491void
4167ev_fork_start (EV_P_ ev_fork *w) 4492ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4168{ 4493{
4169 if (expect_false (ev_is_active (w))) 4494 if (expect_false (ev_is_active (w)))
4170 return; 4495 return;
4171 4496
4172 EV_FREQUENT_CHECK; 4497 EV_FREQUENT_CHECK;
… …
4177 4502
4178 EV_FREQUENT_CHECK; 4503 EV_FREQUENT_CHECK;
4179} 4504}
4180 4505
4181void 4506void
4182ev_fork_stop (EV_P_ ev_fork *w) 4507ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4183{ 4508{
4184 clear_pending (EV_A_ (W)w); 4509 clear_pending (EV_A_ (W)w);
4185 if (expect_false (!ev_is_active (w))) 4510 if (expect_false (!ev_is_active (w)))
4186 return; 4511 return;
4187 4512
… …
4200} 4525}
4201#endif 4526#endif
4202 4527
4203#if EV_CLEANUP_ENABLE 4528#if EV_CLEANUP_ENABLE
4204void 4529void
4205ev_cleanup_start (EV_P_ ev_cleanup *w) 4530ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4206{ 4531{
4207 if (expect_false (ev_is_active (w))) 4532 if (expect_false (ev_is_active (w)))
4208 return; 4533 return;
4209 4534
4210 EV_FREQUENT_CHECK; 4535 EV_FREQUENT_CHECK;
… …
4217 ev_unref (EV_A); 4542 ev_unref (EV_A);
4218 EV_FREQUENT_CHECK; 4543 EV_FREQUENT_CHECK;
4219} 4544}
4220 4545
4221void 4546void
4222ev_cleanup_stop (EV_P_ ev_cleanup *w) 4547ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4223{ 4548{
4224 clear_pending (EV_A_ (W)w); 4549 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4550 if (expect_false (!ev_is_active (w)))
4226 return; 4551 return;
4227 4552
… …
4241} 4566}
4242#endif 4567#endif
4243 4568
4244#if EV_ASYNC_ENABLE 4569#if EV_ASYNC_ENABLE
4245void 4570void
4246ev_async_start (EV_P_ ev_async *w) 4571ev_async_start (EV_P_ ev_async *w) EV_THROW
4247{ 4572{
4248 if (expect_false (ev_is_active (w))) 4573 if (expect_false (ev_is_active (w)))
4249 return; 4574 return;
4250 4575
4251 w->sent = 0; 4576 w->sent = 0;
… …
4260 4585
4261 EV_FREQUENT_CHECK; 4586 EV_FREQUENT_CHECK;
4262} 4587}
4263 4588
4264void 4589void
4265ev_async_stop (EV_P_ ev_async *w) 4590ev_async_stop (EV_P_ ev_async *w) EV_THROW
4266{ 4591{
4267 clear_pending (EV_A_ (W)w); 4592 clear_pending (EV_A_ (W)w);
4268 if (expect_false (!ev_is_active (w))) 4593 if (expect_false (!ev_is_active (w)))
4269 return; 4594 return;
4270 4595
… …
4281 4606
4282 EV_FREQUENT_CHECK; 4607 EV_FREQUENT_CHECK;
4283} 4608}
4284 4609
4285void 4610void
4286ev_async_send (EV_P_ ev_async *w) 4611ev_async_send (EV_P_ ev_async *w) EV_THROW
4287{ 4612{
4288 w->sent = 1; 4613 w->sent = 1;
4289 evpipe_write (EV_A_ &async_pending); 4614 evpipe_write (EV_A_ &async_pending);
4290} 4615}
4291#endif 4616#endif
… …
4328 4653
4329 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4654 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4330} 4655}
4331 4656
4332void 4657void
4333ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4658ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4334{ 4659{
4335 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4660 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4336 4661
4337 if (expect_false (!once)) 4662 if (expect_false (!once))
4338 { 4663 {
… …
4360 4685
4361/*****************************************************************************/ 4686/*****************************************************************************/
4362 4687
4363#if EV_WALK_ENABLE 4688#if EV_WALK_ENABLE
4364void ecb_cold 4689void ecb_cold
4365ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4690ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4366{ 4691{
4367 int i, j; 4692 int i, j;
4368 ev_watcher_list *wl, *wn; 4693 ev_watcher_list *wl, *wn;
4369 4694
4370 if (types & (EV_IO | EV_EMBED)) 4695 if (types & (EV_IO | EV_EMBED))

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