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Comparing libev/ev.c (file contents):
Revision 1.416 by root, Mon Apr 2 20:12:16 2012 UTC vs.
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 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) 2007,2008,2009,2010,2011,2012,2013 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 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
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
… …
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
258# endif
259#endif
260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
260# endif 267# endif
261#endif 268#endif
262 269
263#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
356 363
357#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 366#endif
360 367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* 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. */ 385/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 387# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
369# else 392# else
… …
372# endif 395# endif
373#endif 396#endif
374 397
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376 399
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 400#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
386#endif 403#endif
387 404
… …
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
412# endif 429# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 430#endif
418 431
419#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 434# include <stdint.h>
… …
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */ 492/* ECB.H BEGIN */
480/* 493/*
481 * libecb - http://software.schmorp.de/pkg/libecb 494 * libecb - http://software.schmorp.de/pkg/libecb
482 * 495 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta 497 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved. 498 * All rights reserved.
486 * 499 *
487 * Redistribution and use in source and binary forms, with or without modifica- 500 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met: 501 * tion, are permitted provided that the following conditions are met:
… …
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE. 519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
507 */ 531 */
508 532
509#ifndef ECB_H 533#ifndef ECB_H
510#define ECB_H 534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004
511 538
512#ifdef _WIN32 539#ifdef _WIN32
513 typedef signed char int8_t; 540 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 542 typedef signed short int16_t;
… …
521 typedef unsigned long long uint64_t; 548 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 549 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 550 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 551 typedef unsigned __int64 uint64_t;
525 #endif 552 #endif
553 #ifdef _WIN64
554 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t;
557 #else
558 #define ECB_PTRSIZE 4
559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t;
561 #endif
526#else 562#else
527 #include <inttypes.h> 563 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU
565 #define ECB_PTRSIZE 8
566 #else
567 #define ECB_PTRSIZE 4
568 #endif
569#endif
570
571/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
577 #endif
528#endif 578#endif
529 579
530/* many compilers define _GNUC_ to some versions but then only implement 580/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 581 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 582 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 583 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 584 * 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. 585 * an issue with that they should have done it right in the first place.
536 */ 586 */
537#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 587#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 588 #define ECB_GCC_VERSION(major,minor) 0
540 #else 589#else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 590 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 591#endif
592
593#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
594
595#if __clang__ && defined __has_builtin
596 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
597#else
598 #define ECB_CLANG_BUILTIN(x) 0
599#endif
600
601#if __clang__ && defined __has_extension
602 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
603#else
604 #define ECB_CLANG_EXTENSION(x) 0
605#endif
606
607#define ECB_CPP (__cplusplus+0)
608#define ECB_CPP11 (__cplusplus >= 201103L)
609
610#if ECB_CPP
611 #define ECB_C 0
612 #define ECB_STDC_VERSION 0
613#else
614 #define ECB_C 1
615 #define ECB_STDC_VERSION __STDC_VERSION__
616#endif
617
618#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
619#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
620
621#if ECB_CPP
622 #define ECB_EXTERN_C extern "C"
623 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
624 #define ECB_EXTERN_C_END }
625#else
626 #define ECB_EXTERN_C extern
627 #define ECB_EXTERN_C_BEG
628 #define ECB_EXTERN_C_END
543#endif 629#endif
544 630
545/*****************************************************************************/ 631/*****************************************************************************/
546 632
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 633/* 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 */ 634/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 635
550#if ECB_NO_THREADS 636#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 637 #define ECB_NO_SMP 1
552#endif 638#endif
553 639
554#if ECB_NO_THREADS || ECB_NO_SMP 640#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 641 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 642#endif
557 643
558#ifndef ECB_MEMORY_FENCE 644#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 645 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 646 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 647 #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 */ 648 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 649 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 650 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 652 #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 */ 653 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 654 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 656 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 657 || 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") 658 #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__ ) \ 659 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 660 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
662 #elif __aarch64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
576 #elif __sparc || __sparc__ 664 #elif (__sparc || __sparc__) && !__sparcv8
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 668 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 670 #elif defined __mips__
671 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
672 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
674 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 675 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
676 #elif defined __hppa__
677 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
678 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
679 #elif defined __ia64__
680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
681 #elif defined __m68k__
682 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
683 #elif defined __m88k__
684 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
685 #elif defined __sh__
686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 687 #endif
585 #endif 688 #endif
586#endif 689#endif
587 690
588#ifndef ECB_MEMORY_FENCE 691#ifndef ECB_MEMORY_FENCE
692 #if ECB_GCC_VERSION(4,7)
693 /* see comment below (stdatomic.h) about the C11 memory model. */
694 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
695 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
696 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
697
698 #elif ECB_CLANG_EXTENSION(c_atomic)
699 /* see comment below (stdatomic.h) about the C11 memory model. */
700 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
701 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
702 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
703
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 704 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 705 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 706 #elif _MSC_VER >= 1500 /* VC++ 2008 */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 707 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
708 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
709 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
710 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
711 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 712 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 713 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 714 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 715 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 716 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 717 #elif defined _WIN32
599 #include <WinNT.h> 718 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 719 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 720 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 721 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 722 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 723 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 724 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
606 #elif __xlC__ 725 #elif __xlC__
607 #define ECB_MEMORY_FENCE __sync () 726 #define ECB_MEMORY_FENCE __sync ()
727 #endif
728#endif
729
730#ifndef ECB_MEMORY_FENCE
731 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
732 /* we assume that these memory fences work on all variables/all memory accesses, */
733 /* not just C11 atomics and atomic accesses */
734 #include <stdatomic.h>
735 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
736 /* any fence other than seq_cst, which isn't very efficient for us. */
737 /* Why that is, we don't know - either the C11 memory model is quite useless */
738 /* for most usages, or gcc and clang have a bug */
739 /* I *currently* lean towards the latter, and inefficiently implement */
740 /* all three of ecb's fences as a seq_cst fence */
741 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
742 /* for all __atomic_thread_fence's except seq_cst */
743 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
608 #endif 744 #endif
609#endif 745#endif
610 746
611#ifndef ECB_MEMORY_FENCE 747#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 748 #if !ECB_AVOID_PTHREADS
… …
624 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 760 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) 761 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
626 #endif 762 #endif
627#endif 763#endif
628 764
629#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 765#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 766 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
631#endif 767#endif
632 768
633#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 769#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 770 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 771#endif
636 772
637/*****************************************************************************/ 773/*****************************************************************************/
638 774
639#define ECB_C99 (__STDC_VERSION__ >= 199901L) 775#if ECB_CPP
640
641#if __cplusplus
642 #define ecb_inline static inline 776 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 777#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 778 #define ecb_inline static __inline__
645#elif ECB_C99 779#elif ECB_C99
646 #define ecb_inline static inline 780 #define ecb_inline static inline
… …
663#define ECB_STRINGIFY_(a) # a 797#define ECB_STRINGIFY_(a) # a
664#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 798#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
665 799
666#define ecb_function_ ecb_inline 800#define ecb_function_ ecb_inline
667 801
668#if ECB_GCC_VERSION(3,1) 802#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
669 #define ecb_attribute(attrlist) __attribute__(attrlist) 803 #define ecb_attribute(attrlist) __attribute__ (attrlist)
804#else
805 #define ecb_attribute(attrlist)
806#endif
807
808#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
670 #define ecb_is_constant(expr) __builtin_constant_p (expr) 809 #define ecb_is_constant(expr) __builtin_constant_p (expr)
810#else
811 /* possible C11 impl for integral types
812 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
813 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
814
815 #define ecb_is_constant(expr) 0
816#endif
817
818#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
671 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 819 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
820#else
821 #define ecb_expect(expr,value) (expr)
822#endif
823
824#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
672 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 825 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
673#else 826#else
674 #define ecb_attribute(attrlist)
675 #define ecb_is_constant(expr) 0
676 #define ecb_expect(expr,value) (expr)
677 #define ecb_prefetch(addr,rw,locality) 827 #define ecb_prefetch(addr,rw,locality)
678#endif 828#endif
679 829
680/* no emulation for ecb_decltype */ 830/* no emulation for ecb_decltype */
681#if ECB_GCC_VERSION(4,5) 831#if ECB_CPP11
832 // older implementations might have problems with decltype(x)::type, work around it
833 template<class T> struct ecb_decltype_t { typedef T type; };
682 #define ecb_decltype(x) __decltype(x) 834 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
683#elif ECB_GCC_VERSION(3,0) 835#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
684 #define ecb_decltype(x) __typeof(x) 836 #define ecb_decltype(x) __typeof__ (x)
837#endif
838
839#if _MSC_VER >= 1300
840 #define ecb_deprecated __declspec (deprecated)
841#else
842 #define ecb_deprecated ecb_attribute ((__deprecated__))
685#endif 843#endif
686 844
687#define ecb_noinline ecb_attribute ((__noinline__)) 845#define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__))
689#define ecb_unused ecb_attribute ((__unused__)) 846#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 847#define ecb_const ecb_attribute ((__const__))
691#define ecb_pure ecb_attribute ((__pure__)) 848#define ecb_pure ecb_attribute ((__pure__))
849
850/* TODO http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
851#if ECB_C11 || __IBMC_NORETURN
852 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
853 #define ecb_noreturn _Noreturn
854#else
855 #define ecb_noreturn ecb_attribute ((__noreturn__))
856#endif
692 857
693#if ECB_GCC_VERSION(4,3) 858#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 859 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 860 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 861 #define ecb_cold ecb_attribute ((__cold__))
… …
708/* for compatibility to the rest of the world */ 873/* for compatibility to the rest of the world */
709#define ecb_likely(expr) ecb_expect_true (expr) 874#define ecb_likely(expr) ecb_expect_true (expr)
710#define ecb_unlikely(expr) ecb_expect_false (expr) 875#define ecb_unlikely(expr) ecb_expect_false (expr)
711 876
712/* count trailing zero bits and count # of one bits */ 877/* count trailing zero bits and count # of one bits */
713#if ECB_GCC_VERSION(3,4) 878#if ECB_GCC_VERSION(3,4) \
879 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
880 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
881 && ECB_CLANG_BUILTIN(__builtin_popcount))
714 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 882 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
715 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 883 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
716 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 884 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
717 #define ecb_ctz32(x) __builtin_ctz (x) 885 #define ecb_ctz32(x) __builtin_ctz (x)
718 #define ecb_ctz64(x) __builtin_ctzll (x) 886 #define ecb_ctz64(x) __builtin_ctzll (x)
719 #define ecb_popcount32(x) __builtin_popcount (x) 887 #define ecb_popcount32(x) __builtin_popcount (x)
720 /* no popcountll */ 888 /* no popcountll */
721#else 889#else
722 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 890 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
723 ecb_function_ int 891 ecb_function_ ecb_const int
724 ecb_ctz32 (uint32_t x) 892 ecb_ctz32 (uint32_t x)
725 { 893 {
726 int r = 0; 894 int r = 0;
727 895
728 x &= ~x + 1; /* this isolates the lowest bit */ 896 x &= ~x + 1; /* this isolates the lowest bit */
… …
742#endif 910#endif
743 911
744 return r; 912 return r;
745 } 913 }
746 914
747 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 915 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
748 ecb_function_ int 916 ecb_function_ ecb_const int
749 ecb_ctz64 (uint64_t x) 917 ecb_ctz64 (uint64_t x)
750 { 918 {
751 int shift = x & 0xffffffffU ? 0 : 32; 919 int shift = x & 0xffffffffU ? 0 : 32;
752 return ecb_ctz32 (x >> shift) + shift; 920 return ecb_ctz32 (x >> shift) + shift;
753 } 921 }
754 922
755 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 923 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
756 ecb_function_ int 924 ecb_function_ ecb_const int
757 ecb_popcount32 (uint32_t x) 925 ecb_popcount32 (uint32_t x)
758 { 926 {
759 x -= (x >> 1) & 0x55555555; 927 x -= (x >> 1) & 0x55555555;
760 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 928 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
761 x = ((x >> 4) + x) & 0x0f0f0f0f; 929 x = ((x >> 4) + x) & 0x0f0f0f0f;
762 x *= 0x01010101; 930 x *= 0x01010101;
763 931
764 return x >> 24; 932 return x >> 24;
765 } 933 }
766 934
767 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 935 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
768 ecb_function_ int ecb_ld32 (uint32_t x) 936 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
769 { 937 {
770 int r = 0; 938 int r = 0;
771 939
772 if (x >> 16) { x >>= 16; r += 16; } 940 if (x >> 16) { x >>= 16; r += 16; }
773 if (x >> 8) { x >>= 8; r += 8; } 941 if (x >> 8) { x >>= 8; r += 8; }
… …
776 if (x >> 1) { r += 1; } 944 if (x >> 1) { r += 1; }
777 945
778 return r; 946 return r;
779 } 947 }
780 948
781 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 949 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
782 ecb_function_ int ecb_ld64 (uint64_t x) 950 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
783 { 951 {
784 int r = 0; 952 int r = 0;
785 953
786 if (x >> 32) { x >>= 32; r += 32; } 954 if (x >> 32) { x >>= 32; r += 32; }
787 955
788 return r + ecb_ld32 (x); 956 return r + ecb_ld32 (x);
789 } 957 }
790#endif 958#endif
791 959
960ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
961ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
962ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
963ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
964
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 965ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 966ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
794{ 967{
795 return ( (x * 0x0802U & 0x22110U) 968 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 969 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
797} 970}
798 971
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 972ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
800ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 973ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
801{ 974{
802 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 975 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
803 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 976 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
804 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 977 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
805 x = ( x >> 8 ) | ( x << 8); 978 x = ( x >> 8 ) | ( x << 8);
806 979
807 return x; 980 return x;
808} 981}
809 982
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 983ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
811ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 984ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
812{ 985{
813 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 986 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
814 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 987 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
815 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 988 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
816 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 989 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
819 return x; 992 return x;
820} 993}
821 994
822/* popcount64 is only available on 64 bit cpus as gcc builtin */ 995/* popcount64 is only available on 64 bit cpus as gcc builtin */
823/* so for this version we are lazy */ 996/* so for this version we are lazy */
824ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 997ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
825ecb_function_ int 998ecb_function_ ecb_const int
826ecb_popcount64 (uint64_t x) 999ecb_popcount64 (uint64_t x)
827{ 1000{
828 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1001 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
829} 1002}
830 1003
831ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1004ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
832ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1005ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
833ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1006ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
834ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1007ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
835ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1008ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
836ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1009ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
837ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1010ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
838ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1011ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
839 1012
840ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1013ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
841ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1014ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
842ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1015ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
843ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1016ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
844ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1017ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
845ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1018ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
846ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1019ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
847ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1020ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
848 1021
849#if ECB_GCC_VERSION(4,3) 1022#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
850 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1023 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
851 #define ecb_bswap32(x) __builtin_bswap32 (x) 1024 #define ecb_bswap32(x) __builtin_bswap32 (x)
852 #define ecb_bswap64(x) __builtin_bswap64 (x) 1025 #define ecb_bswap64(x) __builtin_bswap64 (x)
853#else 1026#else
854 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1027 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
855 ecb_function_ uint16_t 1028 ecb_function_ ecb_const uint16_t
856 ecb_bswap16 (uint16_t x) 1029 ecb_bswap16 (uint16_t x)
857 { 1030 {
858 return ecb_rotl16 (x, 8); 1031 return ecb_rotl16 (x, 8);
859 } 1032 }
860 1033
861 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1034 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
862 ecb_function_ uint32_t 1035 ecb_function_ ecb_const uint32_t
863 ecb_bswap32 (uint32_t x) 1036 ecb_bswap32 (uint32_t x)
864 { 1037 {
865 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1038 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
866 } 1039 }
867 1040
868 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1041 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
869 ecb_function_ uint64_t 1042 ecb_function_ ecb_const uint64_t
870 ecb_bswap64 (uint64_t x) 1043 ecb_bswap64 (uint64_t x)
871 { 1044 {
872 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1045 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
873 } 1046 }
874#endif 1047#endif
875 1048
876#if ECB_GCC_VERSION(4,5) 1049#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
877 #define ecb_unreachable() __builtin_unreachable () 1050 #define ecb_unreachable() __builtin_unreachable ()
878#else 1051#else
879 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1052 /* this seems to work fine, but gcc always emits a warning for it :/ */
880 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1053 ecb_inline ecb_noreturn void ecb_unreachable (void);
881 ecb_inline void ecb_unreachable (void) { } 1054 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
882#endif 1055#endif
883 1056
884/* try to tell the compiler that some condition is definitely true */ 1057/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1058#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886 1059
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1060ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
888ecb_inline unsigned char 1061ecb_inline ecb_const unsigned char
889ecb_byteorder_helper (void) 1062ecb_byteorder_helper (void)
890{ 1063{
891 const uint32_t u = 0x11223344; 1064 /* the union code still generates code under pressure in gcc, */
892 return *(unsigned char *)&u; 1065 /* but less than using pointers, and always seems to */
1066 /* successfully return a constant. */
1067 /* the reason why we have this horrible preprocessor mess */
1068 /* is to avoid it in all cases, at least on common architectures */
1069 /* or when using a recent enough gcc version (>= 4.6) */
1070#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1071 return 0x44;
1072#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1073 return 0x44;
1074#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1075 return 0x11;
1076#else
1077 union
1078 {
1079 uint32_t i;
1080 uint8_t c;
1081 } u = { 0x11223344 };
1082 return u.c;
1083#endif
893} 1084}
894 1085
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1086ecb_inline ecb_const ecb_bool ecb_big_endian (void);
896ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1087ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1088ecb_inline ecb_const ecb_bool ecb_little_endian (void);
898ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1089ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
899 1090
900#if ECB_GCC_VERSION(3,0) || ECB_C99 1091#if ECB_GCC_VERSION(3,0) || ECB_C99
901 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1092 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
902#else 1093#else
903 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1094 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
904#endif 1095#endif
905 1096
906#if __cplusplus 1097#if ECB_CPP
907 template<typename T> 1098 template<typename T>
908 static inline T ecb_div_rd (T val, T div) 1099 static inline T ecb_div_rd (T val, T div)
909 { 1100 {
910 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1101 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
911 } 1102 }
… …
928 } 1119 }
929#else 1120#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1121 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif 1122#endif
932 1123
1124/*******************************************************************************/
1125/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1126
1127/* basically, everything uses "ieee pure-endian" floating point numbers */
1128/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1129#if 0 \
1130 || __i386 || __i386__ \
1131 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1132 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1133 || defined __s390__ || defined __s390x__ \
1134 || defined __mips__ \
1135 || defined __alpha__ \
1136 || defined __hppa__ \
1137 || defined __ia64__ \
1138 || defined __m68k__ \
1139 || defined __m88k__ \
1140 || defined __sh__ \
1141 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1142 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1143 || defined __aarch64__
1144 #define ECB_STDFP 1
1145 #include <string.h> /* for memcpy */
1146#else
1147 #define ECB_STDFP 0
1148#endif
1149
1150#ifndef ECB_NO_LIBM
1151
1152 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1153
1154 /* only the oldest of old doesn't have this one. solaris. */
1155 #ifdef INFINITY
1156 #define ECB_INFINITY INFINITY
1157 #else
1158 #define ECB_INFINITY HUGE_VAL
1159 #endif
1160
1161 #ifdef NAN
1162 #define ECB_NAN NAN
1163 #else
1164 #define ECB_NAN ECB_INFINITY
1165 #endif
1166
1167 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1168 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1169 #else
1170 #define ecb_ldexpf(x,e) (float) ldexp ((x), (e))
1171 #endif
1172
1173 /* converts an ieee half/binary16 to a float */
1174 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1175 ecb_function_ ecb_const float
1176 ecb_binary16_to_float (uint16_t x)
1177 {
1178 int e = (x >> 10) & 0x1f;
1179 int m = x & 0x3ff;
1180 float r;
1181
1182 if (!e ) r = ecb_ldexpf (m , -24);
1183 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1184 else if (m ) r = ECB_NAN;
1185 else r = ECB_INFINITY;
1186
1187 return x & 0x8000 ? -r : r;
1188 }
1189
1190 /* convert a float to ieee single/binary32 */
1191 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1192 ecb_function_ ecb_const uint32_t
1193 ecb_float_to_binary32 (float x)
1194 {
1195 uint32_t r;
1196
1197 #if ECB_STDFP
1198 memcpy (&r, &x, 4);
1199 #else
1200 /* slow emulation, works for anything but -0 */
1201 uint32_t m;
1202 int e;
1203
1204 if (x == 0e0f ) return 0x00000000U;
1205 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1206 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1207 if (x != x ) return 0x7fbfffffU;
1208
1209 m = frexpf (x, &e) * 0x1000000U;
1210
1211 r = m & 0x80000000U;
1212
1213 if (r)
1214 m = -m;
1215
1216 if (e <= -126)
1217 {
1218 m &= 0xffffffU;
1219 m >>= (-125 - e);
1220 e = -126;
1221 }
1222
1223 r |= (e + 126) << 23;
1224 r |= m & 0x7fffffU;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* converts an ieee single/binary32 to a float */
1231 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1232 ecb_function_ ecb_const float
1233 ecb_binary32_to_float (uint32_t x)
1234 {
1235 float r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 4);
1239 #else
1240 /* emulation, only works for normals and subnormals and +0 */
1241 int neg = x >> 31;
1242 int e = (x >> 23) & 0xffU;
1243
1244 x &= 0x7fffffU;
1245
1246 if (e)
1247 x |= 0x800000U;
1248 else
1249 e = 1;
1250
1251 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1252 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1253
1254 r = neg ? -r : r;
1255 #endif
1256
1257 return r;
1258 }
1259
1260 /* convert a double to ieee double/binary64 */
1261 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1262 ecb_function_ ecb_const uint64_t
1263 ecb_double_to_binary64 (double x)
1264 {
1265 uint64_t r;
1266
1267 #if ECB_STDFP
1268 memcpy (&r, &x, 8);
1269 #else
1270 /* slow emulation, works for anything but -0 */
1271 uint64_t m;
1272 int e;
1273
1274 if (x == 0e0 ) return 0x0000000000000000U;
1275 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1276 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1277 if (x != x ) return 0X7ff7ffffffffffffU;
1278
1279 m = frexp (x, &e) * 0x20000000000000U;
1280
1281 r = m & 0x8000000000000000;;
1282
1283 if (r)
1284 m = -m;
1285
1286 if (e <= -1022)
1287 {
1288 m &= 0x1fffffffffffffU;
1289 m >>= (-1021 - e);
1290 e = -1022;
1291 }
1292
1293 r |= ((uint64_t)(e + 1022)) << 52;
1294 r |= m & 0xfffffffffffffU;
1295 #endif
1296
1297 return r;
1298 }
1299
1300 /* converts an ieee double/binary64 to a double */
1301 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1302 ecb_function_ ecb_const double
1303 ecb_binary64_to_double (uint64_t x)
1304 {
1305 double r;
1306
1307 #if ECB_STDFP
1308 memcpy (&r, &x, 8);
1309 #else
1310 /* emulation, only works for normals and subnormals and +0 */
1311 int neg = x >> 63;
1312 int e = (x >> 52) & 0x7ffU;
1313
1314 x &= 0xfffffffffffffU;
1315
1316 if (e)
1317 x |= 0x10000000000000U;
1318 else
1319 e = 1;
1320
1321 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1322 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1323
1324 r = neg ? -r : r;
1325 #endif
1326
1327 return r;
1328 }
1329
1330#endif
1331
933#endif 1332#endif
934 1333
935/* ECB.H END */ 1334/* ECB.H END */
936 1335
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1336#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1103{ 1502{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1503 write (STDERR_FILENO, msg, strlen (msg));
1105} 1504}
1106#endif 1505#endif
1107 1506
1108static void (*syserr_cb)(const char *msg); 1507static void (*syserr_cb)(const char *msg) EV_THROW;
1109 1508
1110void ecb_cold 1509void ecb_cold
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1510ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112{ 1511{
1113 syserr_cb = cb; 1512 syserr_cb = cb;
1114} 1513}
1115 1514
1116static void noinline ecb_cold 1515static void noinline ecb_cold
… …
1134 abort (); 1533 abort ();
1135 } 1534 }
1136} 1535}
1137 1536
1138static void * 1537static void *
1139ev_realloc_emul (void *ptr, long size) 1538ev_realloc_emul (void *ptr, long size) EV_THROW
1140{ 1539{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1540 /* some systems, notably openbsd and darwin, fail to properly
1145 * implement realloc (x, 0) (as required by both ansi c-89 and 1541 * implement realloc (x, 0) (as required by both ansi c-89 and
1146 * the single unix specification, so work around them here. 1542 * the single unix specification, so work around them here.
1543 * recently, also (at least) fedora and debian started breaking it,
1544 * despite documenting it otherwise.
1147 */ 1545 */
1148 1546
1149 if (size) 1547 if (size)
1150 return realloc (ptr, size); 1548 return realloc (ptr, size);
1151 1549
1152 free (ptr); 1550 free (ptr);
1153 return 0; 1551 return 0;
1154#endif
1155} 1552}
1156 1553
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1554static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158 1555
1159void ecb_cold 1556void ecb_cold
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1557ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161{ 1558{
1162 alloc = cb; 1559 alloc = cb;
1163} 1560}
1164 1561
1165inline_speed void * 1562inline_speed void *
… …
1282 1679
1283/*****************************************************************************/ 1680/*****************************************************************************/
1284 1681
1285#ifndef EV_HAVE_EV_TIME 1682#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 1683ev_tstamp
1287ev_time (void) 1684ev_time (void) EV_THROW
1288{ 1685{
1289#if EV_USE_REALTIME 1686#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 1687 if (expect_true (have_realtime))
1291 { 1688 {
1292 struct timespec ts; 1689 struct timespec ts;
… …
1316 return ev_time (); 1713 return ev_time ();
1317} 1714}
1318 1715
1319#if EV_MULTIPLICITY 1716#if EV_MULTIPLICITY
1320ev_tstamp 1717ev_tstamp
1321ev_now (EV_P) 1718ev_now (EV_P) EV_THROW
1322{ 1719{
1323 return ev_rt_now; 1720 return ev_rt_now;
1324} 1721}
1325#endif 1722#endif
1326 1723
1327void 1724void
1328ev_sleep (ev_tstamp delay) 1725ev_sleep (ev_tstamp delay) EV_THROW
1329{ 1726{
1330 if (delay > 0.) 1727 if (delay > 0.)
1331 { 1728 {
1332#if EV_USE_NANOSLEEP 1729#if EV_USE_NANOSLEEP
1333 struct timespec ts; 1730 struct timespec ts;
… …
1414pendingcb (EV_P_ ev_prepare *w, int revents) 1811pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 1812{
1416} 1813}
1417 1814
1418void noinline 1815void noinline
1419ev_feed_event (EV_P_ void *w, int revents) 1816ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420{ 1817{
1421 W w_ = (W)w; 1818 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 1819 int pri = ABSPRI (w_);
1423 1820
1424 if (expect_false (w_->pending)) 1821 if (expect_false (w_->pending))
… …
1428 w_->pending = ++pendingcnt [pri]; 1825 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1826 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430 pendings [pri][w_->pending - 1].w = w_; 1827 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 1828 pendings [pri][w_->pending - 1].events = revents;
1432 } 1829 }
1830
1831 pendingpri = NUMPRI - 1;
1433} 1832}
1434 1833
1435inline_speed void 1834inline_speed void
1436feed_reverse (EV_P_ W w) 1835feed_reverse (EV_P_ W w)
1437{ 1836{
… …
1483 if (expect_true (!anfd->reify)) 1882 if (expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 1883 fd_event_nocheck (EV_A_ fd, revents);
1485} 1884}
1486 1885
1487void 1886void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 1887ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489{ 1888{
1490 if (fd >= 0 && fd < anfdmax) 1889 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 1890 fd_event_nocheck (EV_A_ fd, revents);
1492} 1891}
1493 1892
… …
1812static void noinline ecb_cold 2211static void noinline ecb_cold
1813evpipe_init (EV_P) 2212evpipe_init (EV_P)
1814{ 2213{
1815 if (!ev_is_active (&pipe_w)) 2214 if (!ev_is_active (&pipe_w))
1816 { 2215 {
2216 int fds [2];
2217
1817# if EV_USE_EVENTFD 2218# if EV_USE_EVENTFD
2219 fds [0] = -1;
1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2220 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819 if (evfd < 0 && errno == EINVAL) 2221 if (fds [1] < 0 && errno == EINVAL)
1820 evfd = eventfd (0, 0); 2222 fds [1] = eventfd (0, 0);
1821 2223
1822 if (evfd >= 0) 2224 if (fds [1] < 0)
2225# endif
1823 { 2226 {
2227 while (pipe (fds))
2228 ev_syserr ("(libev) error creating signal/async pipe");
2229
2230 fd_intern (fds [0]);
2231 }
2232
1824 evpipe [0] = -1; 2233 evpipe [0] = fds [0];
1825 fd_intern (evfd); /* doing it twice doesn't hurt */ 2234
1826 ev_io_set (&pipe_w, evfd, EV_READ); 2235 if (evpipe [1] < 0)
2236 evpipe [1] = fds [1]; /* first call, set write fd */
2237 else
2238 {
2239 /* on subsequent calls, do not change evpipe [1] */
2240 /* so that evpipe_write can always rely on its value. */
2241 /* this branch does not do anything sensible on windows, */
2242 /* so must not be executed on windows */
2243
2244 dup2 (fds [1], evpipe [1]);
2245 close (fds [1]);
2246 }
2247
2248 fd_intern (evpipe [1]);
2249
2250 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2251 ev_io_start (EV_A_ &pipe_w);
2252 ev_unref (EV_A); /* watcher should not keep loop alive */
2253 }
2254}
2255
2256inline_speed void
2257evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2258{
2259 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2260
2261 if (expect_true (*flag))
2262 return;
2263
2264 *flag = 1;
2265 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2266
2267 pipe_write_skipped = 1;
2268
2269 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2270
2271 if (pipe_write_wanted)
2272 {
2273 int old_errno;
2274
2275 pipe_write_skipped = 0;
2276 ECB_MEMORY_FENCE_RELEASE;
2277
2278 old_errno = errno; /* save errno because write will clobber it */
2279
2280#if EV_USE_EVENTFD
2281 if (evpipe [0] < 0)
2282 {
2283 uint64_t counter = 1;
2284 write (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2285 }
1828 else 2286 else
1829# endif 2287#endif
1830 { 2288 {
1831 while (pipe (evpipe)) 2289#ifdef _WIN32
1832 ev_syserr ("(libev) error creating signal/async pipe"); 2290 WSABUF buf;
1833 2291 DWORD sent;
1834 fd_intern (evpipe [0]); 2292 buf.buf = &buf;
1835 fd_intern (evpipe [1]); 2293 buf.len = 1;
1836 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2294 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837 } 2295#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); 2296 write (evpipe [1], &(evpipe [1]), 1);
2297#endif
1883 } 2298 }
1884 2299
1885 errno = old_errno; 2300 errno = old_errno;
1886 } 2301 }
1887} 2302}
… …
1894 int i; 2309 int i;
1895 2310
1896 if (revents & EV_READ) 2311 if (revents & EV_READ)
1897 { 2312 {
1898#if EV_USE_EVENTFD 2313#if EV_USE_EVENTFD
1899 if (evfd >= 0) 2314 if (evpipe [0] < 0)
1900 { 2315 {
1901 uint64_t counter; 2316 uint64_t counter;
1902 read (evfd, &counter, sizeof (uint64_t)); 2317 read (evpipe [1], &counter, sizeof (uint64_t));
1903 } 2318 }
1904 else 2319 else
1905#endif 2320#endif
1906 { 2321 {
1907 char dummy; 2322 char dummy[4];
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2323#ifdef _WIN32
2324 WSABUF buf;
2325 DWORD recvd;
2326 DWORD flags = 0;
2327 buf.buf = dummy;
2328 buf.len = sizeof (dummy);
2329 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2330#else
1909 read (evpipe [0], &dummy, 1); 2331 read (evpipe [0], &dummy, sizeof (dummy));
2332#endif
1910 } 2333 }
1911 } 2334 }
1912 2335
1913 pipe_write_skipped = 0; 2336 pipe_write_skipped = 0;
2337
2338 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 2339
1915#if EV_SIGNAL_ENABLE 2340#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 2341 if (sig_pending)
1917 { 2342 {
1918 sig_pending = 0; 2343 sig_pending = 0;
2344
2345 ECB_MEMORY_FENCE;
1919 2346
1920 for (i = EV_NSIG - 1; i--; ) 2347 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 2348 if (expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 2349 ev_feed_signal_event (EV_A_ i + 1);
1923 } 2350 }
… …
1925 2352
1926#if EV_ASYNC_ENABLE 2353#if EV_ASYNC_ENABLE
1927 if (async_pending) 2354 if (async_pending)
1928 { 2355 {
1929 async_pending = 0; 2356 async_pending = 0;
2357
2358 ECB_MEMORY_FENCE;
1930 2359
1931 for (i = asynccnt; i--; ) 2360 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2361 if (asyncs [i]->sent)
1933 { 2362 {
1934 asyncs [i]->sent = 0; 2363 asyncs [i]->sent = 0;
2364 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2365 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2366 }
1937 } 2367 }
1938#endif 2368#endif
1939} 2369}
1940 2370
1941/*****************************************************************************/ 2371/*****************************************************************************/
1942 2372
1943void 2373void
1944ev_feed_signal (int signum) 2374ev_feed_signal (int signum) EV_THROW
1945{ 2375{
1946#if EV_MULTIPLICITY 2376#if EV_MULTIPLICITY
2377 EV_P;
2378 ECB_MEMORY_FENCE_ACQUIRE;
1947 EV_P = signals [signum - 1].loop; 2379 EV_A = signals [signum - 1].loop;
1948 2380
1949 if (!EV_A) 2381 if (!EV_A)
1950 return; 2382 return;
1951#endif 2383#endif
1952 2384
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1; 2385 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending); 2386 evpipe_write (EV_A_ &sig_pending);
1958} 2387}
1959 2388
1960static void 2389static void
… …
1966 2395
1967 ev_feed_signal (signum); 2396 ev_feed_signal (signum);
1968} 2397}
1969 2398
1970void noinline 2399void noinline
1971ev_feed_signal_event (EV_P_ int signum) 2400ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972{ 2401{
1973 WL w; 2402 WL w;
1974 2403
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2404 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2405 return;
1977 2406
1978 --signum; 2407 --signum;
1979 2408
1980#if EV_MULTIPLICITY 2409#if EV_MULTIPLICITY
… …
1984 if (expect_false (signals [signum].loop != EV_A)) 2413 if (expect_false (signals [signum].loop != EV_A))
1985 return; 2414 return;
1986#endif 2415#endif
1987 2416
1988 signals [signum].pending = 0; 2417 signals [signum].pending = 0;
2418 ECB_MEMORY_FENCE_RELEASE;
1989 2419
1990 for (w = signals [signum].head; w; w = w->next) 2420 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2421 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2422}
1993 2423
… …
2092#if EV_USE_SELECT 2522#if EV_USE_SELECT
2093# include "ev_select.c" 2523# include "ev_select.c"
2094#endif 2524#endif
2095 2525
2096int ecb_cold 2526int ecb_cold
2097ev_version_major (void) 2527ev_version_major (void) EV_THROW
2098{ 2528{
2099 return EV_VERSION_MAJOR; 2529 return EV_VERSION_MAJOR;
2100} 2530}
2101 2531
2102int ecb_cold 2532int ecb_cold
2103ev_version_minor (void) 2533ev_version_minor (void) EV_THROW
2104{ 2534{
2105 return EV_VERSION_MINOR; 2535 return EV_VERSION_MINOR;
2106} 2536}
2107 2537
2108/* return true if we are running with elevated privileges and should ignore env variables */ 2538/* return true if we are running with elevated privileges and should ignore env variables */
… …
2116 || getgid () != getegid (); 2546 || getgid () != getegid ();
2117#endif 2547#endif
2118} 2548}
2119 2549
2120unsigned int ecb_cold 2550unsigned int ecb_cold
2121ev_supported_backends (void) 2551ev_supported_backends (void) EV_THROW
2122{ 2552{
2123 unsigned int flags = 0; 2553 unsigned int flags = 0;
2124 2554
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2555 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2556 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2130 2560
2131 return flags; 2561 return flags;
2132} 2562}
2133 2563
2134unsigned int ecb_cold 2564unsigned int ecb_cold
2135ev_recommended_backends (void) 2565ev_recommended_backends (void) EV_THROW
2136{ 2566{
2137 unsigned int flags = ev_supported_backends (); 2567 unsigned int flags = ev_supported_backends ();
2138 2568
2139#ifndef __NetBSD__ 2569#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 2570 /* kqueue is borked on everything but netbsd apparently */
… …
2152 2582
2153 return flags; 2583 return flags;
2154} 2584}
2155 2585
2156unsigned int ecb_cold 2586unsigned int ecb_cold
2157ev_embeddable_backends (void) 2587ev_embeddable_backends (void) EV_THROW
2158{ 2588{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2589 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 2590
2161 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2591 /* 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 */ 2592 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2164 2594
2165 return flags; 2595 return flags;
2166} 2596}
2167 2597
2168unsigned int 2598unsigned int
2169ev_backend (EV_P) 2599ev_backend (EV_P) EV_THROW
2170{ 2600{
2171 return backend; 2601 return backend;
2172} 2602}
2173 2603
2174#if EV_FEATURE_API 2604#if EV_FEATURE_API
2175unsigned int 2605unsigned int
2176ev_iteration (EV_P) 2606ev_iteration (EV_P) EV_THROW
2177{ 2607{
2178 return loop_count; 2608 return loop_count;
2179} 2609}
2180 2610
2181unsigned int 2611unsigned int
2182ev_depth (EV_P) 2612ev_depth (EV_P) EV_THROW
2183{ 2613{
2184 return loop_depth; 2614 return loop_depth;
2185} 2615}
2186 2616
2187void 2617void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2618ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2619{
2190 io_blocktime = interval; 2620 io_blocktime = interval;
2191} 2621}
2192 2622
2193void 2623void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2624ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195{ 2625{
2196 timeout_blocktime = interval; 2626 timeout_blocktime = interval;
2197} 2627}
2198 2628
2199void 2629void
2200ev_set_userdata (EV_P_ void *data) 2630ev_set_userdata (EV_P_ void *data) EV_THROW
2201{ 2631{
2202 userdata = data; 2632 userdata = data;
2203} 2633}
2204 2634
2205void * 2635void *
2206ev_userdata (EV_P) 2636ev_userdata (EV_P) EV_THROW
2207{ 2637{
2208 return userdata; 2638 return userdata;
2209} 2639}
2210 2640
2211void 2641void
2212ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2642ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2213{ 2643{
2214 invoke_cb = invoke_pending_cb; 2644 invoke_cb = invoke_pending_cb;
2215} 2645}
2216 2646
2217void 2647void
2218ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2648ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2219{ 2649{
2220 release_cb = release; 2650 release_cb = release;
2221 acquire_cb = acquire; 2651 acquire_cb = acquire;
2222} 2652}
2223#endif 2653#endif
2224 2654
2225/* initialise a loop structure, must be zero-initialised */ 2655/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 2656static void noinline ecb_cold
2227loop_init (EV_P_ unsigned int flags) 2657loop_init (EV_P_ unsigned int flags) EV_THROW
2228{ 2658{
2229 if (!backend) 2659 if (!backend)
2230 { 2660 {
2231 origflags = flags; 2661 origflags = flags;
2232 2662
… …
2277#if EV_ASYNC_ENABLE 2707#if EV_ASYNC_ENABLE
2278 async_pending = 0; 2708 async_pending = 0;
2279#endif 2709#endif
2280 pipe_write_skipped = 0; 2710 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0; 2711 pipe_write_wanted = 0;
2712 evpipe [0] = -1;
2713 evpipe [1] = -1;
2282#if EV_USE_INOTIFY 2714#if EV_USE_INOTIFY
2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284#endif 2716#endif
2285#if EV_USE_SIGNALFD 2717#if EV_USE_SIGNALFD
2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2337 EV_INVOKE_PENDING; 2769 EV_INVOKE_PENDING;
2338 } 2770 }
2339#endif 2771#endif
2340 2772
2341#if EV_CHILD_ENABLE 2773#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 2774 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 2775 {
2344 ev_ref (EV_A); /* child watcher */ 2776 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 2777 ev_signal_stop (EV_A_ &childev);
2346 } 2778 }
2347#endif 2779#endif
… …
2349 if (ev_is_active (&pipe_w)) 2781 if (ev_is_active (&pipe_w))
2350 { 2782 {
2351 /*ev_ref (EV_A);*/ 2783 /*ev_ref (EV_A);*/
2352 /*ev_io_stop (EV_A_ &pipe_w);*/ 2784 /*ev_io_stop (EV_A_ &pipe_w);*/
2353 2785
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]); 2786 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362 EV_WIN32_CLOSE_FD (evpipe [1]); 2787 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363 }
2364 } 2788 }
2365 2789
2366#if EV_USE_SIGNALFD 2790#if EV_USE_SIGNALFD
2367 if (ev_is_active (&sigfd_w)) 2791 if (ev_is_active (&sigfd_w))
2368 close (sigfd); 2792 close (sigfd);
… …
2454#endif 2878#endif
2455#if EV_USE_INOTIFY 2879#if EV_USE_INOTIFY
2456 infy_fork (EV_A); 2880 infy_fork (EV_A);
2457#endif 2881#endif
2458 2882
2883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459 if (ev_is_active (&pipe_w)) 2884 if (ev_is_active (&pipe_w))
2460 { 2885 {
2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2886 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2462 2887
2463 ev_ref (EV_A); 2888 ev_ref (EV_A);
2464 ev_io_stop (EV_A_ &pipe_w); 2889 ev_io_stop (EV_A_ &pipe_w);
2465 2890
2466#if EV_USE_EVENTFD
2467 if (evfd >= 0)
2468 close (evfd);
2469#endif
2470
2471 if (evpipe [0] >= 0) 2891 if (evpipe [0] >= 0)
2472 {
2473 EV_WIN32_CLOSE_FD (evpipe [0]); 2892 EV_WIN32_CLOSE_FD (evpipe [0]);
2474 EV_WIN32_CLOSE_FD (evpipe [1]);
2475 }
2476 2893
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A); 2894 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */ 2895 /* iterate over everything, in case we missed something before */
2480 pipecb (EV_A_ &pipe_w, EV_READ); 2896 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481#endif
2482 } 2897 }
2898#endif
2483 2899
2484 postfork = 0; 2900 postfork = 0;
2485} 2901}
2486 2902
2487#if EV_MULTIPLICITY 2903#if EV_MULTIPLICITY
2488 2904
2489struct ev_loop * ecb_cold 2905struct ev_loop * ecb_cold
2490ev_loop_new (unsigned int flags) 2906ev_loop_new (unsigned int flags) EV_THROW
2491{ 2907{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2908 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 2909
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 2910 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 2911 loop_init (EV_A_ flags);
… …
2539} 2955}
2540#endif 2956#endif
2541 2957
2542#if EV_FEATURE_API 2958#if EV_FEATURE_API
2543void ecb_cold 2959void ecb_cold
2544ev_verify (EV_P) 2960ev_verify (EV_P) EV_THROW
2545{ 2961{
2546#if EV_VERIFY 2962#if EV_VERIFY
2547 int i; 2963 int i;
2548 WL w; 2964 WL w, w2;
2549 2965
2550 assert (activecnt >= -1); 2966 assert (activecnt >= -1);
2551 2967
2552 assert (fdchangemax >= fdchangecnt); 2968 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 2969 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2970 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 2971
2556 assert (anfdmax >= 0); 2972 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 2973 for (i = 0; i < anfdmax; ++i)
2974 {
2975 int j = 0;
2976
2558 for (w = anfds [i].head; w; w = w->next) 2977 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 2978 {
2560 verify_watcher (EV_A_ (W)w); 2979 verify_watcher (EV_A_ (W)w);
2980
2981 if (j++ & 1)
2982 {
2983 assert (("libev: io watcher list contains a loop", w != w2));
2984 w2 = w2->next;
2985 }
2986
2561 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2987 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)); 2988 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2563 } 2989 }
2990 }
2564 2991
2565 assert (timermax >= timercnt); 2992 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 2993 verify_heap (EV_A_ timers, timercnt);
2567 2994
2568#if EV_PERIODIC_ENABLE 2995#if EV_PERIODIC_ENABLE
… …
2618#if EV_MULTIPLICITY 3045#if EV_MULTIPLICITY
2619struct ev_loop * ecb_cold 3046struct ev_loop * ecb_cold
2620#else 3047#else
2621int 3048int
2622#endif 3049#endif
2623ev_default_loop (unsigned int flags) 3050ev_default_loop (unsigned int flags) EV_THROW
2624{ 3051{
2625 if (!ev_default_loop_ptr) 3052 if (!ev_default_loop_ptr)
2626 { 3053 {
2627#if EV_MULTIPLICITY 3054#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 3055 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2647 3074
2648 return ev_default_loop_ptr; 3075 return ev_default_loop_ptr;
2649} 3076}
2650 3077
2651void 3078void
2652ev_loop_fork (EV_P) 3079ev_loop_fork (EV_P) EV_THROW
2653{ 3080{
2654 postfork = 1; /* must be in line with ev_default_fork */ 3081 postfork = 1;
2655} 3082}
2656 3083
2657/*****************************************************************************/ 3084/*****************************************************************************/
2658 3085
2659void 3086void
… …
2661{ 3088{
2662 EV_CB_INVOKE ((W)w, revents); 3089 EV_CB_INVOKE ((W)w, revents);
2663} 3090}
2664 3091
2665unsigned int 3092unsigned int
2666ev_pending_count (EV_P) 3093ev_pending_count (EV_P) EV_THROW
2667{ 3094{
2668 int pri; 3095 int pri;
2669 unsigned int count = 0; 3096 unsigned int count = 0;
2670 3097
2671 for (pri = NUMPRI; pri--; ) 3098 for (pri = NUMPRI; pri--; )
… …
2675} 3102}
2676 3103
2677void noinline 3104void noinline
2678ev_invoke_pending (EV_P) 3105ev_invoke_pending (EV_P)
2679{ 3106{
2680 int pri; 3107 pendingpri = NUMPRI;
2681 3108
2682 for (pri = NUMPRI; pri--; ) 3109 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3110 {
3111 --pendingpri;
3112
2683 while (pendingcnt [pri]) 3113 while (pendingcnt [pendingpri])
2684 { 3114 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3115 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 3116
2687 p->w->pending = 0; 3117 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 3118 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 3119 EV_FREQUENT_CHECK;
2690 } 3120 }
3121 }
2691} 3122}
2692 3123
2693#if EV_IDLE_ENABLE 3124#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 3125/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 3126/* only when higher priorities are idle" logic */
… …
2785{ 3216{
2786 EV_FREQUENT_CHECK; 3217 EV_FREQUENT_CHECK;
2787 3218
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3219 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 3220 {
2790 int feed_count = 0;
2791
2792 do 3221 do
2793 { 3222 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3223 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 3224
2796 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3225 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2930 3359
2931 mn_now = ev_rt_now; 3360 mn_now = ev_rt_now;
2932 } 3361 }
2933} 3362}
2934 3363
2935void 3364int
2936ev_run (EV_P_ int flags) 3365ev_run (EV_P_ int flags)
2937{ 3366{
2938#if EV_FEATURE_API 3367#if EV_FEATURE_API
2939 ++loop_depth; 3368 ++loop_depth;
2940#endif 3369#endif
… …
3055 backend_poll (EV_A_ waittime); 3484 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3485 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 3486
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3487 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 3488
3489 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 3490 if (pipe_write_skipped)
3061 { 3491 {
3062 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3492 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); 3493 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 3494 }
… …
3097 loop_done = EVBREAK_CANCEL; 3527 loop_done = EVBREAK_CANCEL;
3098 3528
3099#if EV_FEATURE_API 3529#if EV_FEATURE_API
3100 --loop_depth; 3530 --loop_depth;
3101#endif 3531#endif
3532
3533 return activecnt;
3102} 3534}
3103 3535
3104void 3536void
3105ev_break (EV_P_ int how) 3537ev_break (EV_P_ int how) EV_THROW
3106{ 3538{
3107 loop_done = how; 3539 loop_done = how;
3108} 3540}
3109 3541
3110void 3542void
3111ev_ref (EV_P) 3543ev_ref (EV_P) EV_THROW
3112{ 3544{
3113 ++activecnt; 3545 ++activecnt;
3114} 3546}
3115 3547
3116void 3548void
3117ev_unref (EV_P) 3549ev_unref (EV_P) EV_THROW
3118{ 3550{
3119 --activecnt; 3551 --activecnt;
3120} 3552}
3121 3553
3122void 3554void
3123ev_now_update (EV_P) 3555ev_now_update (EV_P) EV_THROW
3124{ 3556{
3125 time_update (EV_A_ 1e100); 3557 time_update (EV_A_ 1e100);
3126} 3558}
3127 3559
3128void 3560void
3129ev_suspend (EV_P) 3561ev_suspend (EV_P) EV_THROW
3130{ 3562{
3131 ev_now_update (EV_A); 3563 ev_now_update (EV_A);
3132} 3564}
3133 3565
3134void 3566void
3135ev_resume (EV_P) 3567ev_resume (EV_P) EV_THROW
3136{ 3568{
3137 ev_tstamp mn_prev = mn_now; 3569 ev_tstamp mn_prev = mn_now;
3138 3570
3139 ev_now_update (EV_A); 3571 ev_now_update (EV_A);
3140 timers_reschedule (EV_A_ mn_now - mn_prev); 3572 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3179 w->pending = 0; 3611 w->pending = 0;
3180 } 3612 }
3181} 3613}
3182 3614
3183int 3615int
3184ev_clear_pending (EV_P_ void *w) 3616ev_clear_pending (EV_P_ void *w) EV_THROW
3185{ 3617{
3186 W w_ = (W)w; 3618 W w_ = (W)w;
3187 int pending = w_->pending; 3619 int pending = w_->pending;
3188 3620
3189 if (expect_true (pending)) 3621 if (expect_true (pending))
… …
3222} 3654}
3223 3655
3224/*****************************************************************************/ 3656/*****************************************************************************/
3225 3657
3226void noinline 3658void noinline
3227ev_io_start (EV_P_ ev_io *w) 3659ev_io_start (EV_P_ ev_io *w) EV_THROW
3228{ 3660{
3229 int fd = w->fd; 3661 int fd = w->fd;
3230 3662
3231 if (expect_false (ev_is_active (w))) 3663 if (expect_false (ev_is_active (w)))
3232 return; 3664 return;
… …
3238 3670
3239 ev_start (EV_A_ (W)w, 1); 3671 ev_start (EV_A_ (W)w, 1);
3240 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3672 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3241 wlist_add (&anfds[fd].head, (WL)w); 3673 wlist_add (&anfds[fd].head, (WL)w);
3242 3674
3675 /* common bug, apparently */
3676 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3677
3243 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3678 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3244 w->events &= ~EV__IOFDSET; 3679 w->events &= ~EV__IOFDSET;
3245 3680
3246 EV_FREQUENT_CHECK; 3681 EV_FREQUENT_CHECK;
3247} 3682}
3248 3683
3249void noinline 3684void noinline
3250ev_io_stop (EV_P_ ev_io *w) 3685ev_io_stop (EV_P_ ev_io *w) EV_THROW
3251{ 3686{
3252 clear_pending (EV_A_ (W)w); 3687 clear_pending (EV_A_ (W)w);
3253 if (expect_false (!ev_is_active (w))) 3688 if (expect_false (!ev_is_active (w)))
3254 return; 3689 return;
3255 3690
… …
3264 3699
3265 EV_FREQUENT_CHECK; 3700 EV_FREQUENT_CHECK;
3266} 3701}
3267 3702
3268void noinline 3703void noinline
3269ev_timer_start (EV_P_ ev_timer *w) 3704ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3270{ 3705{
3271 if (expect_false (ev_is_active (w))) 3706 if (expect_false (ev_is_active (w)))
3272 return; 3707 return;
3273 3708
3274 ev_at (w) += mn_now; 3709 ev_at (w) += mn_now;
… …
3288 3723
3289 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3724 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3290} 3725}
3291 3726
3292void noinline 3727void noinline
3293ev_timer_stop (EV_P_ ev_timer *w) 3728ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3294{ 3729{
3295 clear_pending (EV_A_ (W)w); 3730 clear_pending (EV_A_ (W)w);
3296 if (expect_false (!ev_is_active (w))) 3731 if (expect_false (!ev_is_active (w)))
3297 return; 3732 return;
3298 3733
… …
3318 3753
3319 EV_FREQUENT_CHECK; 3754 EV_FREQUENT_CHECK;
3320} 3755}
3321 3756
3322void noinline 3757void noinline
3323ev_timer_again (EV_P_ ev_timer *w) 3758ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3324{ 3759{
3325 EV_FREQUENT_CHECK; 3760 EV_FREQUENT_CHECK;
3326 3761
3327 clear_pending (EV_A_ (W)w); 3762 clear_pending (EV_A_ (W)w);
3328 3763
… …
3345 3780
3346 EV_FREQUENT_CHECK; 3781 EV_FREQUENT_CHECK;
3347} 3782}
3348 3783
3349ev_tstamp 3784ev_tstamp
3350ev_timer_remaining (EV_P_ ev_timer *w) 3785ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3351{ 3786{
3352 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3787 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3353} 3788}
3354 3789
3355#if EV_PERIODIC_ENABLE 3790#if EV_PERIODIC_ENABLE
3356void noinline 3791void noinline
3357ev_periodic_start (EV_P_ ev_periodic *w) 3792ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3358{ 3793{
3359 if (expect_false (ev_is_active (w))) 3794 if (expect_false (ev_is_active (w)))
3360 return; 3795 return;
3361 3796
3362 if (w->reschedule_cb) 3797 if (w->reschedule_cb)
… …
3382 3817
3383 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3818 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3384} 3819}
3385 3820
3386void noinline 3821void noinline
3387ev_periodic_stop (EV_P_ ev_periodic *w) 3822ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3388{ 3823{
3389 clear_pending (EV_A_ (W)w); 3824 clear_pending (EV_A_ (W)w);
3390 if (expect_false (!ev_is_active (w))) 3825 if (expect_false (!ev_is_active (w)))
3391 return; 3826 return;
3392 3827
… …
3410 3845
3411 EV_FREQUENT_CHECK; 3846 EV_FREQUENT_CHECK;
3412} 3847}
3413 3848
3414void noinline 3849void noinline
3415ev_periodic_again (EV_P_ ev_periodic *w) 3850ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3416{ 3851{
3417 /* TODO: use adjustheap and recalculation */ 3852 /* TODO: use adjustheap and recalculation */
3418 ev_periodic_stop (EV_A_ w); 3853 ev_periodic_stop (EV_A_ w);
3419 ev_periodic_start (EV_A_ w); 3854 ev_periodic_start (EV_A_ w);
3420} 3855}
… …
3425#endif 3860#endif
3426 3861
3427#if EV_SIGNAL_ENABLE 3862#if EV_SIGNAL_ENABLE
3428 3863
3429void noinline 3864void noinline
3430ev_signal_start (EV_P_ ev_signal *w) 3865ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3431{ 3866{
3432 if (expect_false (ev_is_active (w))) 3867 if (expect_false (ev_is_active (w)))
3433 return; 3868 return;
3434 3869
3435 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3870 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3437#if EV_MULTIPLICITY 3872#if EV_MULTIPLICITY
3438 assert (("libev: a signal must not be attached to two different loops", 3873 assert (("libev: a signal must not be attached to two different loops",
3439 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3874 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3440 3875
3441 signals [w->signum - 1].loop = EV_A; 3876 signals [w->signum - 1].loop = EV_A;
3877 ECB_MEMORY_FENCE_RELEASE;
3442#endif 3878#endif
3443 3879
3444 EV_FREQUENT_CHECK; 3880 EV_FREQUENT_CHECK;
3445 3881
3446#if EV_USE_SIGNALFD 3882#if EV_USE_SIGNALFD
… …
3506 3942
3507 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
3508} 3944}
3509 3945
3510void noinline 3946void noinline
3511ev_signal_stop (EV_P_ ev_signal *w) 3947ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3512{ 3948{
3513 clear_pending (EV_A_ (W)w); 3949 clear_pending (EV_A_ (W)w);
3514 if (expect_false (!ev_is_active (w))) 3950 if (expect_false (!ev_is_active (w)))
3515 return; 3951 return;
3516 3952
… …
3547#endif 3983#endif
3548 3984
3549#if EV_CHILD_ENABLE 3985#if EV_CHILD_ENABLE
3550 3986
3551void 3987void
3552ev_child_start (EV_P_ ev_child *w) 3988ev_child_start (EV_P_ ev_child *w) EV_THROW
3553{ 3989{
3554#if EV_MULTIPLICITY 3990#if EV_MULTIPLICITY
3555 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3991 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3556#endif 3992#endif
3557 if (expect_false (ev_is_active (w))) 3993 if (expect_false (ev_is_active (w)))
… …
3564 4000
3565 EV_FREQUENT_CHECK; 4001 EV_FREQUENT_CHECK;
3566} 4002}
3567 4003
3568void 4004void
3569ev_child_stop (EV_P_ ev_child *w) 4005ev_child_stop (EV_P_ ev_child *w) EV_THROW
3570{ 4006{
3571 clear_pending (EV_A_ (W)w); 4007 clear_pending (EV_A_ (W)w);
3572 if (expect_false (!ev_is_active (w))) 4008 if (expect_false (!ev_is_active (w)))
3573 return; 4009 return;
3574 4010
… …
3601# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4037# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3602 4038
3603static void noinline 4039static void noinline
3604infy_add (EV_P_ ev_stat *w) 4040infy_add (EV_P_ ev_stat *w)
3605{ 4041{
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); 4042 w->wd = inotify_add_watch (fs_fd, w->path,
4043 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4044 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4045 | IN_DONT_FOLLOW | IN_MASK_ADD);
3607 4046
3608 if (w->wd >= 0) 4047 if (w->wd >= 0)
3609 { 4048 {
3610 struct statfs sfs; 4049 struct statfs sfs;
3611 4050
… …
3615 4054
3616 if (!fs_2625) 4055 if (!fs_2625)
3617 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4056 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3618 else if (!statfs (w->path, &sfs) 4057 else if (!statfs (w->path, &sfs)
3619 && (sfs.f_type == 0x1373 /* devfs */ 4058 && (sfs.f_type == 0x1373 /* devfs */
4059 || sfs.f_type == 0x4006 /* fat */
4060 || sfs.f_type == 0x4d44 /* msdos */
3620 || sfs.f_type == 0xEF53 /* ext2/3 */ 4061 || sfs.f_type == 0xEF53 /* ext2/3 */
4062 || sfs.f_type == 0x72b6 /* jffs2 */
4063 || sfs.f_type == 0x858458f6 /* ramfs */
4064 || sfs.f_type == 0x5346544e /* ntfs */
3621 || sfs.f_type == 0x3153464a /* jfs */ 4065 || sfs.f_type == 0x3153464a /* jfs */
4066 || sfs.f_type == 0x9123683e /* btrfs */
3622 || sfs.f_type == 0x52654973 /* reiser3 */ 4067 || sfs.f_type == 0x52654973 /* reiser3 */
3623 || sfs.f_type == 0x01021994 /* tempfs */ 4068 || sfs.f_type == 0x01021994 /* tmpfs */
3624 || sfs.f_type == 0x58465342 /* xfs */)) 4069 || sfs.f_type == 0x58465342 /* xfs */))
3625 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4070 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3626 else 4071 else
3627 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4072 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3628 } 4073 }
… …
3826#else 4271#else
3827# define EV_LSTAT(p,b) lstat (p, b) 4272# define EV_LSTAT(p,b) lstat (p, b)
3828#endif 4273#endif
3829 4274
3830void 4275void
3831ev_stat_stat (EV_P_ ev_stat *w) 4276ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3832{ 4277{
3833 if (lstat (w->path, &w->attr) < 0) 4278 if (lstat (w->path, &w->attr) < 0)
3834 w->attr.st_nlink = 0; 4279 w->attr.st_nlink = 0;
3835 else if (!w->attr.st_nlink) 4280 else if (!w->attr.st_nlink)
3836 w->attr.st_nlink = 1; 4281 w->attr.st_nlink = 1;
… …
3875 ev_feed_event (EV_A_ w, EV_STAT); 4320 ev_feed_event (EV_A_ w, EV_STAT);
3876 } 4321 }
3877} 4322}
3878 4323
3879void 4324void
3880ev_stat_start (EV_P_ ev_stat *w) 4325ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3881{ 4326{
3882 if (expect_false (ev_is_active (w))) 4327 if (expect_false (ev_is_active (w)))
3883 return; 4328 return;
3884 4329
3885 ev_stat_stat (EV_A_ w); 4330 ev_stat_stat (EV_A_ w);
… …
3906 4351
3907 EV_FREQUENT_CHECK; 4352 EV_FREQUENT_CHECK;
3908} 4353}
3909 4354
3910void 4355void
3911ev_stat_stop (EV_P_ ev_stat *w) 4356ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3912{ 4357{
3913 clear_pending (EV_A_ (W)w); 4358 clear_pending (EV_A_ (W)w);
3914 if (expect_false (!ev_is_active (w))) 4359 if (expect_false (!ev_is_active (w)))
3915 return; 4360 return;
3916 4361
… …
3932} 4377}
3933#endif 4378#endif
3934 4379
3935#if EV_IDLE_ENABLE 4380#if EV_IDLE_ENABLE
3936void 4381void
3937ev_idle_start (EV_P_ ev_idle *w) 4382ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3938{ 4383{
3939 if (expect_false (ev_is_active (w))) 4384 if (expect_false (ev_is_active (w)))
3940 return; 4385 return;
3941 4386
3942 pri_adjust (EV_A_ (W)w); 4387 pri_adjust (EV_A_ (W)w);
… …
3955 4400
3956 EV_FREQUENT_CHECK; 4401 EV_FREQUENT_CHECK;
3957} 4402}
3958 4403
3959void 4404void
3960ev_idle_stop (EV_P_ ev_idle *w) 4405ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3961{ 4406{
3962 clear_pending (EV_A_ (W)w); 4407 clear_pending (EV_A_ (W)w);
3963 if (expect_false (!ev_is_active (w))) 4408 if (expect_false (!ev_is_active (w)))
3964 return; 4409 return;
3965 4410
… …
3979} 4424}
3980#endif 4425#endif
3981 4426
3982#if EV_PREPARE_ENABLE 4427#if EV_PREPARE_ENABLE
3983void 4428void
3984ev_prepare_start (EV_P_ ev_prepare *w) 4429ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3985{ 4430{
3986 if (expect_false (ev_is_active (w))) 4431 if (expect_false (ev_is_active (w)))
3987 return; 4432 return;
3988 4433
3989 EV_FREQUENT_CHECK; 4434 EV_FREQUENT_CHECK;
… …
3994 4439
3995 EV_FREQUENT_CHECK; 4440 EV_FREQUENT_CHECK;
3996} 4441}
3997 4442
3998void 4443void
3999ev_prepare_stop (EV_P_ ev_prepare *w) 4444ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4000{ 4445{
4001 clear_pending (EV_A_ (W)w); 4446 clear_pending (EV_A_ (W)w);
4002 if (expect_false (!ev_is_active (w))) 4447 if (expect_false (!ev_is_active (w)))
4003 return; 4448 return;
4004 4449
… …
4017} 4462}
4018#endif 4463#endif
4019 4464
4020#if EV_CHECK_ENABLE 4465#if EV_CHECK_ENABLE
4021void 4466void
4022ev_check_start (EV_P_ ev_check *w) 4467ev_check_start (EV_P_ ev_check *w) EV_THROW
4023{ 4468{
4024 if (expect_false (ev_is_active (w))) 4469 if (expect_false (ev_is_active (w)))
4025 return; 4470 return;
4026 4471
4027 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
… …
4032 4477
4033 EV_FREQUENT_CHECK; 4478 EV_FREQUENT_CHECK;
4034} 4479}
4035 4480
4036void 4481void
4037ev_check_stop (EV_P_ ev_check *w) 4482ev_check_stop (EV_P_ ev_check *w) EV_THROW
4038{ 4483{
4039 clear_pending (EV_A_ (W)w); 4484 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4485 if (expect_false (!ev_is_active (w)))
4041 return; 4486 return;
4042 4487
… …
4055} 4500}
4056#endif 4501#endif
4057 4502
4058#if EV_EMBED_ENABLE 4503#if EV_EMBED_ENABLE
4059void noinline 4504void noinline
4060ev_embed_sweep (EV_P_ ev_embed *w) 4505ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4061{ 4506{
4062 ev_run (w->other, EVRUN_NOWAIT); 4507 ev_run (w->other, EVRUN_NOWAIT);
4063} 4508}
4064 4509
4065static void 4510static void
… …
4113 ev_idle_stop (EV_A_ idle); 4558 ev_idle_stop (EV_A_ idle);
4114} 4559}
4115#endif 4560#endif
4116 4561
4117void 4562void
4118ev_embed_start (EV_P_ ev_embed *w) 4563ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4119{ 4564{
4120 if (expect_false (ev_is_active (w))) 4565 if (expect_false (ev_is_active (w)))
4121 return; 4566 return;
4122 4567
4123 { 4568 {
… …
4144 4589
4145 EV_FREQUENT_CHECK; 4590 EV_FREQUENT_CHECK;
4146} 4591}
4147 4592
4148void 4593void
4149ev_embed_stop (EV_P_ ev_embed *w) 4594ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4150{ 4595{
4151 clear_pending (EV_A_ (W)w); 4596 clear_pending (EV_A_ (W)w);
4152 if (expect_false (!ev_is_active (w))) 4597 if (expect_false (!ev_is_active (w)))
4153 return; 4598 return;
4154 4599
… …
4164} 4609}
4165#endif 4610#endif
4166 4611
4167#if EV_FORK_ENABLE 4612#if EV_FORK_ENABLE
4168void 4613void
4169ev_fork_start (EV_P_ ev_fork *w) 4614ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4170{ 4615{
4171 if (expect_false (ev_is_active (w))) 4616 if (expect_false (ev_is_active (w)))
4172 return; 4617 return;
4173 4618
4174 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
… …
4179 4624
4180 EV_FREQUENT_CHECK; 4625 EV_FREQUENT_CHECK;
4181} 4626}
4182 4627
4183void 4628void
4184ev_fork_stop (EV_P_ ev_fork *w) 4629ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4185{ 4630{
4186 clear_pending (EV_A_ (W)w); 4631 clear_pending (EV_A_ (W)w);
4187 if (expect_false (!ev_is_active (w))) 4632 if (expect_false (!ev_is_active (w)))
4188 return; 4633 return;
4189 4634
… …
4202} 4647}
4203#endif 4648#endif
4204 4649
4205#if EV_CLEANUP_ENABLE 4650#if EV_CLEANUP_ENABLE
4206void 4651void
4207ev_cleanup_start (EV_P_ ev_cleanup *w) 4652ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4208{ 4653{
4209 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4210 return; 4655 return;
4211 4656
4212 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4219 ev_unref (EV_A); 4664 ev_unref (EV_A);
4220 EV_FREQUENT_CHECK; 4665 EV_FREQUENT_CHECK;
4221} 4666}
4222 4667
4223void 4668void
4224ev_cleanup_stop (EV_P_ ev_cleanup *w) 4669ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4225{ 4670{
4226 clear_pending (EV_A_ (W)w); 4671 clear_pending (EV_A_ (W)w);
4227 if (expect_false (!ev_is_active (w))) 4672 if (expect_false (!ev_is_active (w)))
4228 return; 4673 return;
4229 4674
… …
4243} 4688}
4244#endif 4689#endif
4245 4690
4246#if EV_ASYNC_ENABLE 4691#if EV_ASYNC_ENABLE
4247void 4692void
4248ev_async_start (EV_P_ ev_async *w) 4693ev_async_start (EV_P_ ev_async *w) EV_THROW
4249{ 4694{
4250 if (expect_false (ev_is_active (w))) 4695 if (expect_false (ev_is_active (w)))
4251 return; 4696 return;
4252 4697
4253 w->sent = 0; 4698 w->sent = 0;
… …
4262 4707
4263 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
4264} 4709}
4265 4710
4266void 4711void
4267ev_async_stop (EV_P_ ev_async *w) 4712ev_async_stop (EV_P_ ev_async *w) EV_THROW
4268{ 4713{
4269 clear_pending (EV_A_ (W)w); 4714 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4715 if (expect_false (!ev_is_active (w)))
4271 return; 4716 return;
4272 4717
… …
4283 4728
4284 EV_FREQUENT_CHECK; 4729 EV_FREQUENT_CHECK;
4285} 4730}
4286 4731
4287void 4732void
4288ev_async_send (EV_P_ ev_async *w) 4733ev_async_send (EV_P_ ev_async *w) EV_THROW
4289{ 4734{
4290 w->sent = 1; 4735 w->sent = 1;
4291 evpipe_write (EV_A_ &async_pending); 4736 evpipe_write (EV_A_ &async_pending);
4292} 4737}
4293#endif 4738#endif
… …
4330 4775
4331 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4776 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4332} 4777}
4333 4778
4334void 4779void
4335ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4780ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4336{ 4781{
4337 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4782 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4338 4783
4339 if (expect_false (!once)) 4784 if (expect_false (!once))
4340 { 4785 {
… …
4362 4807
4363/*****************************************************************************/ 4808/*****************************************************************************/
4364 4809
4365#if EV_WALK_ENABLE 4810#if EV_WALK_ENABLE
4366void ecb_cold 4811void ecb_cold
4367ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4812ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4368{ 4813{
4369 int i, j; 4814 int i, j;
4370 ev_watcher_list *wl, *wn; 4815 ev_watcher_list *wl, *wn;
4371 4816
4372 if (types & (EV_IO | EV_EMBED)) 4817 if (types & (EV_IO | EV_EMBED))

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