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Comparing libev/ev.c (file contents):
Revision 1.418 by root, Mon Apr 2 23:14:41 2012 UTC vs.
Revision 1.479 by root, Sun Dec 20 01:31:17 2015 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 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 0x00010005
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 (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8
566 #else
567 #define ECB_PTRSIZE 4
568 #endif
569#endif
570
571#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573
574/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32
577 #define ECB_AMD64_X32 1
578 #else
579 #define ECB_AMD64 1
580 #endif
528#endif 581#endif
529 582
530/* many compilers define _GNUC_ to some versions but then only implement 583/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 584 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 585 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 586 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 587 * 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. 588 * an issue with that they should have done it right in the first place.
536 */ 589 */
537#ifndef ECB_GCC_VERSION
538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 590#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 591 #define ECB_GCC_VERSION(major,minor) 0
540 #else 592#else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 593 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 594#endif
595
596#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
597
598#if __clang__ && defined __has_builtin
599 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
600#else
601 #define ECB_CLANG_BUILTIN(x) 0
602#endif
603
604#if __clang__ && defined __has_extension
605 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
606#else
607 #define ECB_CLANG_EXTENSION(x) 0
608#endif
609
610#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L)
612
613#if ECB_CPP
614 #define ECB_C 0
615 #define ECB_STDC_VERSION 0
616#else
617 #define ECB_C 1
618 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif
620
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
623
624#if ECB_CPP
625 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END }
628#else
629 #define ECB_EXTERN_C extern
630 #define ECB_EXTERN_C_BEG
631 #define ECB_EXTERN_C_END
543#endif 632#endif
544 633
545/*****************************************************************************/ 634/*****************************************************************************/
546 635
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 636/* 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 */ 637/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 638
550#if ECB_NO_THREADS 639#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 640 #define ECB_NO_SMP 1
552#endif 641#endif
553 642
554#if ECB_NO_THREADS || ECB_NO_SMP 643#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 644 #define ECB_MEMORY_FENCE do { } while (0)
645#endif
646
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP
649 #include <builtins.h>
650#endif
651
652#if 1400 <= _MSC_VER
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
556#endif 654#endif
557 655
558#ifndef ECB_MEMORY_FENCE 656#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 658 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 659 #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 */ 660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 662 #elif ECB_GCC_AMD64
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 664 #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 */ 665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
671 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
672 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
673 || defined __ARM_ARCH_5TEJ__
674 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 675 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 676 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
677 || defined __ARM_ARCH_6T2__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 678 #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__ \ 679 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 680 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 681 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 682 #elif __aarch64__
683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
684 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 686 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 687 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__ 688 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__ 690 #elif defined __mips__
691 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
692 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
693 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
694 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 695 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
696 #elif defined __hppa__
697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
698 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
699 #elif defined __ia64__
700 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
701 #elif defined __m68k__
702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
703 #elif defined __m88k__
704 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
705 #elif defined __sh__
706 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 707 #endif
585 #endif 708 #endif
586#endif 709#endif
587 710
588#ifndef ECB_MEMORY_FENCE 711#ifndef ECB_MEMORY_FENCE
712 #if ECB_GCC_VERSION(4,7)
713 /* see comment below (stdatomic.h) about the C11 memory model. */
714 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
715 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
716 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
717
718 #elif ECB_CLANG_EXTENSION(c_atomic)
719 /* see comment below (stdatomic.h) about the C11 memory model. */
720 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
721 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
722 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
723
589 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 724 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 725 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 726 #elif _MSC_VER >= 1500 /* VC++ 2008 */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 727 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
728 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
729 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
730 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
731 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 732 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 733 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 734 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 735 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 736 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
607 #define ECB_MEMORY_FENCE __sync () 746 #define ECB_MEMORY_FENCE __sync ()
608 #endif 747 #endif
609#endif 748#endif
610 749
611#ifndef ECB_MEMORY_FENCE 750#ifndef ECB_MEMORY_FENCE
751 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
752 /* we assume that these memory fences work on all variables/all memory accesses, */
753 /* not just C11 atomics and atomic accesses */
754 #include <stdatomic.h>
755 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
756 /* any fence other than seq_cst, which isn't very efficient for us. */
757 /* Why that is, we don't know - either the C11 memory model is quite useless */
758 /* for most usages, or gcc and clang have a bug */
759 /* I *currently* lean towards the latter, and inefficiently implement */
760 /* all three of ecb's fences as a seq_cst fence */
761 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
762 /* for all __atomic_thread_fence's except seq_cst */
763 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
764 #endif
765#endif
766
767#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 768 #if !ECB_AVOID_PTHREADS
613 /* 769 /*
614 * if you get undefined symbol references to pthread_mutex_lock, 770 * if you get undefined symbol references to pthread_mutex_lock,
615 * or failure to find pthread.h, then you should implement 771 * or failure to find pthread.h, then you should implement
616 * the ECB_MEMORY_FENCE operations for your cpu/compiler 772 * the ECB_MEMORY_FENCE operations for your cpu/compiler
… …
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 790 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 791#endif
636 792
637/*****************************************************************************/ 793/*****************************************************************************/
638 794
639#define ECB_C99 (__STDC_VERSION__ >= 199901L) 795#if ECB_CPP
640
641#if __cplusplus
642 #define ecb_inline static inline 796 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 797#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 798 #define ecb_inline static __inline__
645#elif ECB_C99 799#elif ECB_C99
646 #define ecb_inline static inline 800 #define ecb_inline static inline
… …
660 814
661#define ECB_CONCAT_(a, b) a ## b 815#define ECB_CONCAT_(a, b) a ## b
662#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 816#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
663#define ECB_STRINGIFY_(a) # a 817#define ECB_STRINGIFY_(a) # a
664#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 818#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
819#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
665 820
666#define ecb_function_ ecb_inline 821#define ecb_function_ ecb_inline
667 822
668#if ECB_GCC_VERSION(3,1) 823#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
669 #define ecb_attribute(attrlist) __attribute__(attrlist) 824 #define ecb_attribute(attrlist) __attribute__ (attrlist)
825#else
826 #define ecb_attribute(attrlist)
827#endif
828
829#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
670 #define ecb_is_constant(expr) __builtin_constant_p (expr) 830 #define ecb_is_constant(expr) __builtin_constant_p (expr)
831#else
832 /* possible C11 impl for integral types
833 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
834 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
835
836 #define ecb_is_constant(expr) 0
837#endif
838
839#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
671 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 840 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
841#else
842 #define ecb_expect(expr,value) (expr)
843#endif
844
845#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
672 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 846 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
673#else 847#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) 848 #define ecb_prefetch(addr,rw,locality)
678#endif 849#endif
679 850
680/* no emulation for ecb_decltype */ 851/* no emulation for ecb_decltype */
681#if ECB_GCC_VERSION(4,5) 852#if ECB_CPP11
853 // older implementations might have problems with decltype(x)::type, work around it
854 template<class T> struct ecb_decltype_t { typedef T type; };
682 #define ecb_decltype(x) __decltype(x) 855 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
683#elif ECB_GCC_VERSION(3,0) 856#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
684 #define ecb_decltype(x) __typeof(x) 857 #define ecb_decltype(x) __typeof__ (x)
685#endif 858#endif
686 859
860#if _MSC_VER >= 1300
861 #define ecb_deprecated __declspec (deprecated)
862#else
863 #define ecb_deprecated ecb_attribute ((__deprecated__))
864#endif
865
866#if _MSC_VER >= 1500
867 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
868#elif ECB_GCC_VERSION(4,5)
869 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
870#else
871 #define ecb_deprecated_message(msg) ecb_deprecated
872#endif
873
874#if _MSC_VER >= 1400
875 #define ecb_noinline __declspec (noinline)
876#else
687#define ecb_noinline ecb_attribute ((__noinline__)) 877 #define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__)) 878#endif
879
689#define ecb_unused ecb_attribute ((__unused__)) 880#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 881#define ecb_const ecb_attribute ((__const__))
691#define ecb_pure ecb_attribute ((__pure__)) 882#define ecb_pure ecb_attribute ((__pure__))
883
884#if ECB_C11 || __IBMC_NORETURN
885 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
886 #define ecb_noreturn _Noreturn
887#elif ECB_CPP11
888 #define ecb_noreturn [[noreturn]]
889#elif _MSC_VER >= 1200
890 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
891 #define ecb_noreturn __declspec (noreturn)
892#else
893 #define ecb_noreturn ecb_attribute ((__noreturn__))
894#endif
692 895
693#if ECB_GCC_VERSION(4,3) 896#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 897 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 898 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 899 #define ecb_cold ecb_attribute ((__cold__))
… …
708/* for compatibility to the rest of the world */ 911/* for compatibility to the rest of the world */
709#define ecb_likely(expr) ecb_expect_true (expr) 912#define ecb_likely(expr) ecb_expect_true (expr)
710#define ecb_unlikely(expr) ecb_expect_false (expr) 913#define ecb_unlikely(expr) ecb_expect_false (expr)
711 914
712/* count trailing zero bits and count # of one bits */ 915/* count trailing zero bits and count # of one bits */
713#if ECB_GCC_VERSION(3,4) 916#if ECB_GCC_VERSION(3,4) \
917 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
918 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
919 && ECB_CLANG_BUILTIN(__builtin_popcount))
714 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 920 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
715 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 921 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
716 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 922 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
717 #define ecb_ctz32(x) __builtin_ctz (x) 923 #define ecb_ctz32(x) __builtin_ctz (x)
718 #define ecb_ctz64(x) __builtin_ctzll (x) 924 #define ecb_ctz64(x) __builtin_ctzll (x)
719 #define ecb_popcount32(x) __builtin_popcount (x) 925 #define ecb_popcount32(x) __builtin_popcount (x)
720 /* no popcountll */ 926 /* no popcountll */
721#else 927#else
722 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 928 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
723 ecb_function_ int 929 ecb_function_ ecb_const int
724 ecb_ctz32 (uint32_t x) 930 ecb_ctz32 (uint32_t x)
725 { 931 {
932#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
933 unsigned long r;
934 _BitScanForward (&r, x);
935 return (int)r;
936#else
726 int r = 0; 937 int r = 0;
727 938
728 x &= ~x + 1; /* this isolates the lowest bit */ 939 x &= ~x + 1; /* this isolates the lowest bit */
729 940
730#if ECB_branchless_on_i386 941#if ECB_branchless_on_i386
… …
740 if (x & 0xff00ff00) r += 8; 951 if (x & 0xff00ff00) r += 8;
741 if (x & 0xffff0000) r += 16; 952 if (x & 0xffff0000) r += 16;
742#endif 953#endif
743 954
744 return r; 955 return r;
956#endif
745 } 957 }
746 958
747 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 959 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
748 ecb_function_ int 960 ecb_function_ ecb_const int
749 ecb_ctz64 (uint64_t x) 961 ecb_ctz64 (uint64_t x)
750 { 962 {
963#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
964 unsigned long r;
965 _BitScanForward64 (&r, x);
966 return (int)r;
967#else
751 int shift = x & 0xffffffffU ? 0 : 32; 968 int shift = x & 0xffffffff ? 0 : 32;
752 return ecb_ctz32 (x >> shift) + shift; 969 return ecb_ctz32 (x >> shift) + shift;
970#endif
753 } 971 }
754 972
755 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 973 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
756 ecb_function_ int 974 ecb_function_ ecb_const int
757 ecb_popcount32 (uint32_t x) 975 ecb_popcount32 (uint32_t x)
758 { 976 {
759 x -= (x >> 1) & 0x55555555; 977 x -= (x >> 1) & 0x55555555;
760 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 978 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
761 x = ((x >> 4) + x) & 0x0f0f0f0f; 979 x = ((x >> 4) + x) & 0x0f0f0f0f;
762 x *= 0x01010101; 980 x *= 0x01010101;
763 981
764 return x >> 24; 982 return x >> 24;
765 } 983 }
766 984
767 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 985 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
768 ecb_function_ int ecb_ld32 (uint32_t x) 986 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
769 { 987 {
988#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
989 unsigned long r;
990 _BitScanReverse (&r, x);
991 return (int)r;
992#else
770 int r = 0; 993 int r = 0;
771 994
772 if (x >> 16) { x >>= 16; r += 16; } 995 if (x >> 16) { x >>= 16; r += 16; }
773 if (x >> 8) { x >>= 8; r += 8; } 996 if (x >> 8) { x >>= 8; r += 8; }
774 if (x >> 4) { x >>= 4; r += 4; } 997 if (x >> 4) { x >>= 4; r += 4; }
775 if (x >> 2) { x >>= 2; r += 2; } 998 if (x >> 2) { x >>= 2; r += 2; }
776 if (x >> 1) { r += 1; } 999 if (x >> 1) { r += 1; }
777 1000
778 return r; 1001 return r;
1002#endif
779 } 1003 }
780 1004
781 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
782 ecb_function_ int ecb_ld64 (uint64_t x) 1006 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
783 { 1007 {
1008#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1009 unsigned long r;
1010 _BitScanReverse64 (&r, x);
1011 return (int)r;
1012#else
784 int r = 0; 1013 int r = 0;
785 1014
786 if (x >> 32) { x >>= 32; r += 32; } 1015 if (x >> 32) { x >>= 32; r += 32; }
787 1016
788 return r + ecb_ld32 (x); 1017 return r + ecb_ld32 (x);
1018#endif
789 } 1019 }
790#endif 1020#endif
791 1021
1022ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1023ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1024ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1025ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1026
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1027ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1028ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
794{ 1029{
795 return ( (x * 0x0802U & 0x22110U) 1030 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1031 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
797} 1032}
798 1033
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1034ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
800ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1035ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
801{ 1036{
802 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1037 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
803 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1038 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
804 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1039 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
805 x = ( x >> 8 ) | ( x << 8); 1040 x = ( x >> 8 ) | ( x << 8);
806 1041
807 return x; 1042 return x;
808} 1043}
809 1044
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1045ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
811ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1046ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
812{ 1047{
813 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1048 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
814 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1049 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
815 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1050 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
816 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1051 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
819 return x; 1054 return x;
820} 1055}
821 1056
822/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1057/* popcount64 is only available on 64 bit cpus as gcc builtin */
823/* so for this version we are lazy */ 1058/* so for this version we are lazy */
824ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1059ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
825ecb_function_ int 1060ecb_function_ ecb_const int
826ecb_popcount64 (uint64_t x) 1061ecb_popcount64 (uint64_t x)
827{ 1062{
828 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1063 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
829} 1064}
830 1065
831ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1066ecb_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; 1067ecb_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; 1068ecb_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; 1069ecb_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; 1070ecb_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; 1071ecb_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; 1072ecb_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; 1073ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
839 1074
840ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1075ecb_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); } 1076ecb_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); } 1077ecb_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); } 1078ecb_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); } 1079ecb_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); } 1080ecb_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); } 1081ecb_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); } 1082ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
848 1083
849#if ECB_GCC_VERSION(4,3) 1084#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1085 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1086 #define ecb_bswap16(x) __builtin_bswap16 (x)
1087 #else
850 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1088 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1089 #endif
851 #define ecb_bswap32(x) __builtin_bswap32 (x) 1090 #define ecb_bswap32(x) __builtin_bswap32 (x)
852 #define ecb_bswap64(x) __builtin_bswap64 (x) 1091 #define ecb_bswap64(x) __builtin_bswap64 (x)
1092#elif _MSC_VER
1093 #include <stdlib.h>
1094 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1095 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1096 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
853#else 1097#else
854 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1098 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
855 ecb_function_ uint16_t 1099 ecb_function_ ecb_const uint16_t
856 ecb_bswap16 (uint16_t x) 1100 ecb_bswap16 (uint16_t x)
857 { 1101 {
858 return ecb_rotl16 (x, 8); 1102 return ecb_rotl16 (x, 8);
859 } 1103 }
860 1104
861 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1105 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
862 ecb_function_ uint32_t 1106 ecb_function_ ecb_const uint32_t
863 ecb_bswap32 (uint32_t x) 1107 ecb_bswap32 (uint32_t x)
864 { 1108 {
865 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1109 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
866 } 1110 }
867 1111
868 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1112 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
869 ecb_function_ uint64_t 1113 ecb_function_ ecb_const uint64_t
870 ecb_bswap64 (uint64_t x) 1114 ecb_bswap64 (uint64_t x)
871 { 1115 {
872 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1116 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
873 } 1117 }
874#endif 1118#endif
875 1119
876#if ECB_GCC_VERSION(4,5) 1120#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
877 #define ecb_unreachable() __builtin_unreachable () 1121 #define ecb_unreachable() __builtin_unreachable ()
878#else 1122#else
879 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1123 /* this seems to work fine, but gcc always emits a warning for it :/ */
880 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1124 ecb_inline ecb_noreturn void ecb_unreachable (void);
881 ecb_inline void ecb_unreachable (void) { } 1125 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
882#endif 1126#endif
883 1127
884/* try to tell the compiler that some condition is definitely true */ 1128/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1129#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886 1130
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1131ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
888ecb_inline unsigned char 1132ecb_inline ecb_const uint32_t
889ecb_byteorder_helper (void) 1133ecb_byteorder_helper (void)
890{ 1134{
891 const uint32_t u = 0x11223344; 1135 /* the union code still generates code under pressure in gcc, */
892 return *(unsigned char *)&u; 1136 /* but less than using pointers, and always seems to */
1137 /* successfully return a constant. */
1138 /* the reason why we have this horrible preprocessor mess */
1139 /* is to avoid it in all cases, at least on common architectures */
1140 /* or when using a recent enough gcc version (>= 4.6) */
1141#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1142 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1143 #define ECB_LITTLE_ENDIAN 1
1144 return 0x44332211;
1145#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1146 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1147 #define ECB_BIG_ENDIAN 1
1148 return 0x11223344;
1149#else
1150 union
1151 {
1152 uint8_t c[4];
1153 uint32_t u;
1154 } u = { 0x11, 0x22, 0x33, 0x44 };
1155 return u.u;
1156#endif
893} 1157}
894 1158
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1159ecb_inline ecb_const ecb_bool ecb_big_endian (void);
896ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1160ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1161ecb_inline ecb_const ecb_bool ecb_little_endian (void);
898ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1162ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
899 1163
900#if ECB_GCC_VERSION(3,0) || ECB_C99 1164#if ECB_GCC_VERSION(3,0) || ECB_C99
901 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1165 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
902#else 1166#else
903 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1167 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
904#endif 1168#endif
905 1169
906#if __cplusplus 1170#if ECB_CPP
907 template<typename T> 1171 template<typename T>
908 static inline T ecb_div_rd (T val, T div) 1172 static inline T ecb_div_rd (T val, T div)
909 { 1173 {
910 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1174 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
911 } 1175 }
… …
928 } 1192 }
929#else 1193#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1194 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif 1195#endif
932 1196
1197ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1198ecb_function_ ecb_const uint32_t
1199ecb_binary16_to_binary32 (uint32_t x)
1200{
1201 unsigned int s = (x & 0x8000) << (31 - 15);
1202 int e = (x >> 10) & 0x001f;
1203 unsigned int m = x & 0x03ff;
1204
1205 if (ecb_expect_false (e == 31))
1206 /* infinity or NaN */
1207 e = 255 - (127 - 15);
1208 else if (ecb_expect_false (!e))
1209 {
1210 if (ecb_expect_true (!m))
1211 /* zero, handled by code below by forcing e to 0 */
1212 e = 0 - (127 - 15);
1213 else
1214 {
1215 /* subnormal, renormalise */
1216 unsigned int s = 10 - ecb_ld32 (m);
1217
1218 m = (m << s) & 0x3ff; /* mask implicit bit */
1219 e -= s - 1;
1220 }
1221 }
1222
1223 /* e and m now are normalised, or zero, (or inf or nan) */
1224 e += 127 - 15;
1225
1226 return s | (e << 23) | (m << (23 - 10));
1227}
1228
1229ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1230ecb_function_ ecb_const uint16_t
1231ecb_binary32_to_binary16 (uint32_t x)
1232{
1233 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1234 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1235 unsigned int m = x & 0x007fffff;
1236
1237 x &= 0x7fffffff;
1238
1239 /* if it's within range of binary16 normals, use fast path */
1240 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1241 {
1242 /* mantissa round-to-even */
1243 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1244
1245 /* handle overflow */
1246 if (ecb_expect_false (m >= 0x00800000))
1247 {
1248 m >>= 1;
1249 e += 1;
1250 }
1251
1252 return s | (e << 10) | (m >> (23 - 10));
1253 }
1254
1255 /* handle large numbers and infinity */
1256 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1257 return s | 0x7c00;
1258
1259 /* handle zero, subnormals and small numbers */
1260 if (ecb_expect_true (x < 0x38800000))
1261 {
1262 /* zero */
1263 if (ecb_expect_true (!x))
1264 return s;
1265
1266 /* handle subnormals */
1267
1268 /* too small, will be zero */
1269 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1270 return s;
1271
1272 m |= 0x00800000; /* make implicit bit explicit */
1273
1274 /* very tricky - we need to round to the nearest e (+10) bit value */
1275 {
1276 unsigned int bits = 14 - e;
1277 unsigned int half = (1 << (bits - 1)) - 1;
1278 unsigned int even = (m >> bits) & 1;
1279
1280 /* if this overflows, we will end up with a normalised number */
1281 m = (m + half + even) >> bits;
1282 }
1283
1284 return s | m;
1285 }
1286
1287 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1288 m >>= 13;
1289
1290 return s | 0x7c00 | m | !m;
1291}
1292
1293/*******************************************************************************/
1294/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1295
1296/* basically, everything uses "ieee pure-endian" floating point numbers */
1297/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1298#if 0 \
1299 || __i386 || __i386__ \
1300 || ECB_GCC_AMD64 \
1301 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1302 || defined __s390__ || defined __s390x__ \
1303 || defined __mips__ \
1304 || defined __alpha__ \
1305 || defined __hppa__ \
1306 || defined __ia64__ \
1307 || defined __m68k__ \
1308 || defined __m88k__ \
1309 || defined __sh__ \
1310 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1311 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1312 || defined __aarch64__
1313 #define ECB_STDFP 1
1314 #include <string.h> /* for memcpy */
1315#else
1316 #define ECB_STDFP 0
1317#endif
1318
1319#ifndef ECB_NO_LIBM
1320
1321 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1322
1323 /* only the oldest of old doesn't have this one. solaris. */
1324 #ifdef INFINITY
1325 #define ECB_INFINITY INFINITY
1326 #else
1327 #define ECB_INFINITY HUGE_VAL
1328 #endif
1329
1330 #ifdef NAN
1331 #define ECB_NAN NAN
1332 #else
1333 #define ECB_NAN ECB_INFINITY
1334 #endif
1335
1336 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1337 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1338 #define ecb_frexpf(x,e) frexpf ((x), (e))
1339 #else
1340 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1341 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1342 #endif
1343
1344 /* convert a float to ieee single/binary32 */
1345 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1346 ecb_function_ ecb_const uint32_t
1347 ecb_float_to_binary32 (float x)
1348 {
1349 uint32_t r;
1350
1351 #if ECB_STDFP
1352 memcpy (&r, &x, 4);
1353 #else
1354 /* slow emulation, works for anything but -0 */
1355 uint32_t m;
1356 int e;
1357
1358 if (x == 0e0f ) return 0x00000000U;
1359 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1360 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1361 if (x != x ) return 0x7fbfffffU;
1362
1363 m = ecb_frexpf (x, &e) * 0x1000000U;
1364
1365 r = m & 0x80000000U;
1366
1367 if (r)
1368 m = -m;
1369
1370 if (e <= -126)
1371 {
1372 m &= 0xffffffU;
1373 m >>= (-125 - e);
1374 e = -126;
1375 }
1376
1377 r |= (e + 126) << 23;
1378 r |= m & 0x7fffffU;
1379 #endif
1380
1381 return r;
1382 }
1383
1384 /* converts an ieee single/binary32 to a float */
1385 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1386 ecb_function_ ecb_const float
1387 ecb_binary32_to_float (uint32_t x)
1388 {
1389 float r;
1390
1391 #if ECB_STDFP
1392 memcpy (&r, &x, 4);
1393 #else
1394 /* emulation, only works for normals and subnormals and +0 */
1395 int neg = x >> 31;
1396 int e = (x >> 23) & 0xffU;
1397
1398 x &= 0x7fffffU;
1399
1400 if (e)
1401 x |= 0x800000U;
1402 else
1403 e = 1;
1404
1405 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1406 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1407
1408 r = neg ? -r : r;
1409 #endif
1410
1411 return r;
1412 }
1413
1414 /* convert a double to ieee double/binary64 */
1415 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1416 ecb_function_ ecb_const uint64_t
1417 ecb_double_to_binary64 (double x)
1418 {
1419 uint64_t r;
1420
1421 #if ECB_STDFP
1422 memcpy (&r, &x, 8);
1423 #else
1424 /* slow emulation, works for anything but -0 */
1425 uint64_t m;
1426 int e;
1427
1428 if (x == 0e0 ) return 0x0000000000000000U;
1429 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1430 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1431 if (x != x ) return 0X7ff7ffffffffffffU;
1432
1433 m = frexp (x, &e) * 0x20000000000000U;
1434
1435 r = m & 0x8000000000000000;;
1436
1437 if (r)
1438 m = -m;
1439
1440 if (e <= -1022)
1441 {
1442 m &= 0x1fffffffffffffU;
1443 m >>= (-1021 - e);
1444 e = -1022;
1445 }
1446
1447 r |= ((uint64_t)(e + 1022)) << 52;
1448 r |= m & 0xfffffffffffffU;
1449 #endif
1450
1451 return r;
1452 }
1453
1454 /* converts an ieee double/binary64 to a double */
1455 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1456 ecb_function_ ecb_const double
1457 ecb_binary64_to_double (uint64_t x)
1458 {
1459 double r;
1460
1461 #if ECB_STDFP
1462 memcpy (&r, &x, 8);
1463 #else
1464 /* emulation, only works for normals and subnormals and +0 */
1465 int neg = x >> 63;
1466 int e = (x >> 52) & 0x7ffU;
1467
1468 x &= 0xfffffffffffffU;
1469
1470 if (e)
1471 x |= 0x10000000000000U;
1472 else
1473 e = 1;
1474
1475 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1476 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1477
1478 r = neg ? -r : r;
1479 #endif
1480
1481 return r;
1482 }
1483
1484 /* convert a float to ieee half/binary16 */
1485 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1486 ecb_function_ ecb_const uint16_t
1487 ecb_float_to_binary16 (float x)
1488 {
1489 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1490 }
1491
1492 /* convert an ieee half/binary16 to float */
1493 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1494 ecb_function_ ecb_const float
1495 ecb_binary16_to_float (uint16_t x)
1496 {
1497 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1498 }
1499
1500#endif
1501
933#endif 1502#endif
934 1503
935/* ECB.H END */ 1504/* ECB.H END */
936 1505
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1506#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1103{ 1672{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1673 write (STDERR_FILENO, msg, strlen (msg));
1105} 1674}
1106#endif 1675#endif
1107 1676
1108static void (*syserr_cb)(const char *msg); 1677static void (*syserr_cb)(const char *msg) EV_THROW;
1109 1678
1110void ecb_cold 1679void ecb_cold
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1680ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112{ 1681{
1113 syserr_cb = cb; 1682 syserr_cb = cb;
1114} 1683}
1115 1684
1116static void noinline ecb_cold 1685static void noinline ecb_cold
… …
1134 abort (); 1703 abort ();
1135 } 1704 }
1136} 1705}
1137 1706
1138static void * 1707static void *
1139ev_realloc_emul (void *ptr, long size) 1708ev_realloc_emul (void *ptr, long size) EV_THROW
1140{ 1709{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1710 /* some systems, notably openbsd and darwin, fail to properly
1145 * implement realloc (x, 0) (as required by both ansi c-89 and 1711 * implement realloc (x, 0) (as required by both ansi c-89 and
1146 * the single unix specification, so work around them here. 1712 * the single unix specification, so work around them here.
1713 * recently, also (at least) fedora and debian started breaking it,
1714 * despite documenting it otherwise.
1147 */ 1715 */
1148 1716
1149 if (size) 1717 if (size)
1150 return realloc (ptr, size); 1718 return realloc (ptr, size);
1151 1719
1152 free (ptr); 1720 free (ptr);
1153 return 0; 1721 return 0;
1154#endif
1155} 1722}
1156 1723
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1724static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158 1725
1159void ecb_cold 1726void ecb_cold
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1727ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161{ 1728{
1162 alloc = cb; 1729 alloc = cb;
1163} 1730}
1164 1731
1165inline_speed void * 1732inline_speed void *
… …
1282 1849
1283/*****************************************************************************/ 1850/*****************************************************************************/
1284 1851
1285#ifndef EV_HAVE_EV_TIME 1852#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 1853ev_tstamp
1287ev_time (void) 1854ev_time (void) EV_THROW
1288{ 1855{
1289#if EV_USE_REALTIME 1856#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 1857 if (expect_true (have_realtime))
1291 { 1858 {
1292 struct timespec ts; 1859 struct timespec ts;
… …
1316 return ev_time (); 1883 return ev_time ();
1317} 1884}
1318 1885
1319#if EV_MULTIPLICITY 1886#if EV_MULTIPLICITY
1320ev_tstamp 1887ev_tstamp
1321ev_now (EV_P) 1888ev_now (EV_P) EV_THROW
1322{ 1889{
1323 return ev_rt_now; 1890 return ev_rt_now;
1324} 1891}
1325#endif 1892#endif
1326 1893
1327void 1894void
1328ev_sleep (ev_tstamp delay) 1895ev_sleep (ev_tstamp delay) EV_THROW
1329{ 1896{
1330 if (delay > 0.) 1897 if (delay > 0.)
1331 { 1898 {
1332#if EV_USE_NANOSLEEP 1899#if EV_USE_NANOSLEEP
1333 struct timespec ts; 1900 struct timespec ts;
… …
1414pendingcb (EV_P_ ev_prepare *w, int revents) 1981pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 1982{
1416} 1983}
1417 1984
1418void noinline 1985void noinline
1419ev_feed_event (EV_P_ void *w, int revents) 1986ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420{ 1987{
1421 W w_ = (W)w; 1988 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 1989 int pri = ABSPRI (w_);
1423 1990
1424 if (expect_false (w_->pending)) 1991 if (expect_false (w_->pending))
… …
1428 w_->pending = ++pendingcnt [pri]; 1995 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1996 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430 pendings [pri][w_->pending - 1].w = w_; 1997 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 1998 pendings [pri][w_->pending - 1].events = revents;
1432 } 1999 }
2000
2001 pendingpri = NUMPRI - 1;
1433} 2002}
1434 2003
1435inline_speed void 2004inline_speed void
1436feed_reverse (EV_P_ W w) 2005feed_reverse (EV_P_ W w)
1437{ 2006{
… …
1483 if (expect_true (!anfd->reify)) 2052 if (expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 2053 fd_event_nocheck (EV_A_ fd, revents);
1485} 2054}
1486 2055
1487void 2056void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 2057ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489{ 2058{
1490 if (fd >= 0 && fd < anfdmax) 2059 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 2060 fd_event_nocheck (EV_A_ fd, revents);
1492} 2061}
1493 2062
… …
1812static void noinline ecb_cold 2381static void noinline ecb_cold
1813evpipe_init (EV_P) 2382evpipe_init (EV_P)
1814{ 2383{
1815 if (!ev_is_active (&pipe_w)) 2384 if (!ev_is_active (&pipe_w))
1816 { 2385 {
2386 int fds [2];
2387
1817# if EV_USE_EVENTFD 2388# if EV_USE_EVENTFD
2389 fds [0] = -1;
1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2390 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819 if (evfd < 0 && errno == EINVAL) 2391 if (fds [1] < 0 && errno == EINVAL)
1820 evfd = eventfd (0, 0); 2392 fds [1] = eventfd (0, 0);
1821 2393
1822 if (evfd >= 0) 2394 if (fds [1] < 0)
2395# endif
1823 { 2396 {
2397 while (pipe (fds))
2398 ev_syserr ("(libev) error creating signal/async pipe");
2399
2400 fd_intern (fds [0]);
2401 }
2402
1824 evpipe [0] = -1; 2403 evpipe [0] = fds [0];
1825 fd_intern (evfd); /* doing it twice doesn't hurt */ 2404
1826 ev_io_set (&pipe_w, evfd, EV_READ); 2405 if (evpipe [1] < 0)
2406 evpipe [1] = fds [1]; /* first call, set write fd */
2407 else
2408 {
2409 /* on subsequent calls, do not change evpipe [1] */
2410 /* so that evpipe_write can always rely on its value. */
2411 /* this branch does not do anything sensible on windows, */
2412 /* so must not be executed on windows */
2413
2414 dup2 (fds [1], evpipe [1]);
2415 close (fds [1]);
2416 }
2417
2418 fd_intern (evpipe [1]);
2419
2420 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2421 ev_io_start (EV_A_ &pipe_w);
2422 ev_unref (EV_A); /* watcher should not keep loop alive */
2423 }
2424}
2425
2426inline_speed void
2427evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2428{
2429 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2430
2431 if (expect_true (*flag))
2432 return;
2433
2434 *flag = 1;
2435 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2436
2437 pipe_write_skipped = 1;
2438
2439 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2440
2441 if (pipe_write_wanted)
2442 {
2443 int old_errno;
2444
2445 pipe_write_skipped = 0;
2446 ECB_MEMORY_FENCE_RELEASE;
2447
2448 old_errno = errno; /* save errno because write will clobber it */
2449
2450#if EV_USE_EVENTFD
2451 if (evpipe [0] < 0)
2452 {
2453 uint64_t counter = 1;
2454 write (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2455 }
1828 else 2456 else
1829# endif 2457#endif
1830 { 2458 {
1831 while (pipe (evpipe)) 2459#ifdef _WIN32
1832 ev_syserr ("(libev) error creating signal/async pipe"); 2460 WSABUF buf;
1833 2461 DWORD sent;
1834 fd_intern (evpipe [0]); 2462 buf.buf = &buf;
1835 fd_intern (evpipe [1]); 2463 buf.len = 1;
1836 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2464 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837 } 2465#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); 2466 write (evpipe [1], &(evpipe [1]), 1);
2467#endif
1883 } 2468 }
1884 2469
1885 errno = old_errno; 2470 errno = old_errno;
1886 } 2471 }
1887} 2472}
… …
1894 int i; 2479 int i;
1895 2480
1896 if (revents & EV_READ) 2481 if (revents & EV_READ)
1897 { 2482 {
1898#if EV_USE_EVENTFD 2483#if EV_USE_EVENTFD
1899 if (evfd >= 0) 2484 if (evpipe [0] < 0)
1900 { 2485 {
1901 uint64_t counter; 2486 uint64_t counter;
1902 read (evfd, &counter, sizeof (uint64_t)); 2487 read (evpipe [1], &counter, sizeof (uint64_t));
1903 } 2488 }
1904 else 2489 else
1905#endif 2490#endif
1906 { 2491 {
1907 char dummy; 2492 char dummy[4];
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2493#ifdef _WIN32
2494 WSABUF buf;
2495 DWORD recvd;
2496 DWORD flags = 0;
2497 buf.buf = dummy;
2498 buf.len = sizeof (dummy);
2499 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2500#else
1909 read (evpipe [0], &dummy, 1); 2501 read (evpipe [0], &dummy, sizeof (dummy));
2502#endif
1910 } 2503 }
1911 } 2504 }
1912 2505
1913 pipe_write_skipped = 0; 2506 pipe_write_skipped = 0;
2507
2508 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 2509
1915#if EV_SIGNAL_ENABLE 2510#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 2511 if (sig_pending)
1917 { 2512 {
1918 sig_pending = 0; 2513 sig_pending = 0;
2514
2515 ECB_MEMORY_FENCE;
1919 2516
1920 for (i = EV_NSIG - 1; i--; ) 2517 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 2518 if (expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 2519 ev_feed_signal_event (EV_A_ i + 1);
1923 } 2520 }
… …
1925 2522
1926#if EV_ASYNC_ENABLE 2523#if EV_ASYNC_ENABLE
1927 if (async_pending) 2524 if (async_pending)
1928 { 2525 {
1929 async_pending = 0; 2526 async_pending = 0;
2527
2528 ECB_MEMORY_FENCE;
1930 2529
1931 for (i = asynccnt; i--; ) 2530 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2531 if (asyncs [i]->sent)
1933 { 2532 {
1934 asyncs [i]->sent = 0; 2533 asyncs [i]->sent = 0;
2534 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2535 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2536 }
1937 } 2537 }
1938#endif 2538#endif
1939} 2539}
1940 2540
1941/*****************************************************************************/ 2541/*****************************************************************************/
1942 2542
1943void 2543void
1944ev_feed_signal (int signum) 2544ev_feed_signal (int signum) EV_THROW
1945{ 2545{
1946#if EV_MULTIPLICITY 2546#if EV_MULTIPLICITY
2547 EV_P;
2548 ECB_MEMORY_FENCE_ACQUIRE;
1947 EV_P = signals [signum - 1].loop; 2549 EV_A = signals [signum - 1].loop;
1948 2550
1949 if (!EV_A) 2551 if (!EV_A)
1950 return; 2552 return;
1951#endif 2553#endif
1952 2554
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1; 2555 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending); 2556 evpipe_write (EV_A_ &sig_pending);
1958} 2557}
1959 2558
1960static void 2559static void
… …
1966 2565
1967 ev_feed_signal (signum); 2566 ev_feed_signal (signum);
1968} 2567}
1969 2568
1970void noinline 2569void noinline
1971ev_feed_signal_event (EV_P_ int signum) 2570ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972{ 2571{
1973 WL w; 2572 WL w;
1974 2573
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2574 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2575 return;
1977 2576
1978 --signum; 2577 --signum;
1979 2578
1980#if EV_MULTIPLICITY 2579#if EV_MULTIPLICITY
… …
1984 if (expect_false (signals [signum].loop != EV_A)) 2583 if (expect_false (signals [signum].loop != EV_A))
1985 return; 2584 return;
1986#endif 2585#endif
1987 2586
1988 signals [signum].pending = 0; 2587 signals [signum].pending = 0;
2588 ECB_MEMORY_FENCE_RELEASE;
1989 2589
1990 for (w = signals [signum].head; w; w = w->next) 2590 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2591 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2592}
1993 2593
… …
2092#if EV_USE_SELECT 2692#if EV_USE_SELECT
2093# include "ev_select.c" 2693# include "ev_select.c"
2094#endif 2694#endif
2095 2695
2096int ecb_cold 2696int ecb_cold
2097ev_version_major (void) 2697ev_version_major (void) EV_THROW
2098{ 2698{
2099 return EV_VERSION_MAJOR; 2699 return EV_VERSION_MAJOR;
2100} 2700}
2101 2701
2102int ecb_cold 2702int ecb_cold
2103ev_version_minor (void) 2703ev_version_minor (void) EV_THROW
2104{ 2704{
2105 return EV_VERSION_MINOR; 2705 return EV_VERSION_MINOR;
2106} 2706}
2107 2707
2108/* return true if we are running with elevated privileges and should ignore env variables */ 2708/* return true if we are running with elevated privileges and should ignore env variables */
… …
2116 || getgid () != getegid (); 2716 || getgid () != getegid ();
2117#endif 2717#endif
2118} 2718}
2119 2719
2120unsigned int ecb_cold 2720unsigned int ecb_cold
2121ev_supported_backends (void) 2721ev_supported_backends (void) EV_THROW
2122{ 2722{
2123 unsigned int flags = 0; 2723 unsigned int flags = 0;
2124 2724
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2725 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2726 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2130 2730
2131 return flags; 2731 return flags;
2132} 2732}
2133 2733
2134unsigned int ecb_cold 2734unsigned int ecb_cold
2135ev_recommended_backends (void) 2735ev_recommended_backends (void) EV_THROW
2136{ 2736{
2137 unsigned int flags = ev_supported_backends (); 2737 unsigned int flags = ev_supported_backends ();
2138 2738
2139#ifndef __NetBSD__ 2739#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 2740 /* kqueue is borked on everything but netbsd apparently */
… …
2152 2752
2153 return flags; 2753 return flags;
2154} 2754}
2155 2755
2156unsigned int ecb_cold 2756unsigned int ecb_cold
2157ev_embeddable_backends (void) 2757ev_embeddable_backends (void) EV_THROW
2158{ 2758{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2759 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 2760
2161 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2761 /* 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 */ 2762 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2164 2764
2165 return flags; 2765 return flags;
2166} 2766}
2167 2767
2168unsigned int 2768unsigned int
2169ev_backend (EV_P) 2769ev_backend (EV_P) EV_THROW
2170{ 2770{
2171 return backend; 2771 return backend;
2172} 2772}
2173 2773
2174#if EV_FEATURE_API 2774#if EV_FEATURE_API
2175unsigned int 2775unsigned int
2176ev_iteration (EV_P) 2776ev_iteration (EV_P) EV_THROW
2177{ 2777{
2178 return loop_count; 2778 return loop_count;
2179} 2779}
2180 2780
2181unsigned int 2781unsigned int
2182ev_depth (EV_P) 2782ev_depth (EV_P) EV_THROW
2183{ 2783{
2184 return loop_depth; 2784 return loop_depth;
2185} 2785}
2186 2786
2187void 2787void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2788ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189{ 2789{
2190 io_blocktime = interval; 2790 io_blocktime = interval;
2191} 2791}
2192 2792
2193void 2793void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2794ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195{ 2795{
2196 timeout_blocktime = interval; 2796 timeout_blocktime = interval;
2197} 2797}
2198 2798
2199void 2799void
2200ev_set_userdata (EV_P_ void *data) 2800ev_set_userdata (EV_P_ void *data) EV_THROW
2201{ 2801{
2202 userdata = data; 2802 userdata = data;
2203} 2803}
2204 2804
2205void * 2805void *
2206ev_userdata (EV_P) 2806ev_userdata (EV_P) EV_THROW
2207{ 2807{
2208 return userdata; 2808 return userdata;
2209} 2809}
2210 2810
2211void 2811void
2212ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2812ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2213{ 2813{
2214 invoke_cb = invoke_pending_cb; 2814 invoke_cb = invoke_pending_cb;
2215} 2815}
2216 2816
2217void 2817void
2218ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2818ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2219{ 2819{
2220 release_cb = release; 2820 release_cb = release;
2221 acquire_cb = acquire; 2821 acquire_cb = acquire;
2222} 2822}
2223#endif 2823#endif
2224 2824
2225/* initialise a loop structure, must be zero-initialised */ 2825/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 2826static void noinline ecb_cold
2227loop_init (EV_P_ unsigned int flags) 2827loop_init (EV_P_ unsigned int flags) EV_THROW
2228{ 2828{
2229 if (!backend) 2829 if (!backend)
2230 { 2830 {
2231 origflags = flags; 2831 origflags = flags;
2232 2832
… …
2277#if EV_ASYNC_ENABLE 2877#if EV_ASYNC_ENABLE
2278 async_pending = 0; 2878 async_pending = 0;
2279#endif 2879#endif
2280 pipe_write_skipped = 0; 2880 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0; 2881 pipe_write_wanted = 0;
2882 evpipe [0] = -1;
2883 evpipe [1] = -1;
2282#if EV_USE_INOTIFY 2884#if EV_USE_INOTIFY
2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2885 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284#endif 2886#endif
2285#if EV_USE_SIGNALFD 2887#if EV_USE_SIGNALFD
2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2888 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2337 EV_INVOKE_PENDING; 2939 EV_INVOKE_PENDING;
2338 } 2940 }
2339#endif 2941#endif
2340 2942
2341#if EV_CHILD_ENABLE 2943#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 2944 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 2945 {
2344 ev_ref (EV_A); /* child watcher */ 2946 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 2947 ev_signal_stop (EV_A_ &childev);
2346 } 2948 }
2347#endif 2949#endif
… …
2349 if (ev_is_active (&pipe_w)) 2951 if (ev_is_active (&pipe_w))
2350 { 2952 {
2351 /*ev_ref (EV_A);*/ 2953 /*ev_ref (EV_A);*/
2352 /*ev_io_stop (EV_A_ &pipe_w);*/ 2954 /*ev_io_stop (EV_A_ &pipe_w);*/
2353 2955
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]); 2956 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362 EV_WIN32_CLOSE_FD (evpipe [1]); 2957 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363 }
2364 } 2958 }
2365 2959
2366#if EV_USE_SIGNALFD 2960#if EV_USE_SIGNALFD
2367 if (ev_is_active (&sigfd_w)) 2961 if (ev_is_active (&sigfd_w))
2368 close (sigfd); 2962 close (sigfd);
… …
2454#endif 3048#endif
2455#if EV_USE_INOTIFY 3049#if EV_USE_INOTIFY
2456 infy_fork (EV_A); 3050 infy_fork (EV_A);
2457#endif 3051#endif
2458 3052
3053#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459 if (ev_is_active (&pipe_w)) 3054 if (ev_is_active (&pipe_w) && postfork != 2)
2460 { 3055 {
2461 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3056 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2462 3057
2463 ev_ref (EV_A); 3058 ev_ref (EV_A);
2464 ev_io_stop (EV_A_ &pipe_w); 3059 ev_io_stop (EV_A_ &pipe_w);
2465 3060
2466#if EV_USE_EVENTFD
2467 if (evfd >= 0)
2468 close (evfd);
2469#endif
2470
2471 if (evpipe [0] >= 0) 3061 if (evpipe [0] >= 0)
2472 {
2473 EV_WIN32_CLOSE_FD (evpipe [0]); 3062 EV_WIN32_CLOSE_FD (evpipe [0]);
2474 EV_WIN32_CLOSE_FD (evpipe [1]);
2475 }
2476 3063
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A); 3064 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */ 3065 /* iterate over everything, in case we missed something before */
2480 pipecb (EV_A_ &pipe_w, EV_READ); 3066 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481#endif
2482 } 3067 }
3068#endif
2483 3069
2484 postfork = 0; 3070 postfork = 0;
2485} 3071}
2486 3072
2487#if EV_MULTIPLICITY 3073#if EV_MULTIPLICITY
2488 3074
2489struct ev_loop * ecb_cold 3075struct ev_loop * ecb_cold
2490ev_loop_new (unsigned int flags) 3076ev_loop_new (unsigned int flags) EV_THROW
2491{ 3077{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3078 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 3079
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 3080 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 3081 loop_init (EV_A_ flags);
… …
2539} 3125}
2540#endif 3126#endif
2541 3127
2542#if EV_FEATURE_API 3128#if EV_FEATURE_API
2543void ecb_cold 3129void ecb_cold
2544ev_verify (EV_P) 3130ev_verify (EV_P) EV_THROW
2545{ 3131{
2546#if EV_VERIFY 3132#if EV_VERIFY
2547 int i; 3133 int i;
2548 WL w; 3134 WL w, w2;
2549 3135
2550 assert (activecnt >= -1); 3136 assert (activecnt >= -1);
2551 3137
2552 assert (fdchangemax >= fdchangecnt); 3138 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 3139 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3140 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 3141
2556 assert (anfdmax >= 0); 3142 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 3143 for (i = 0; i < anfdmax; ++i)
3144 {
3145 int j = 0;
3146
2558 for (w = anfds [i].head; w; w = w->next) 3147 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 3148 {
2560 verify_watcher (EV_A_ (W)w); 3149 verify_watcher (EV_A_ (W)w);
3150
3151 if (j++ & 1)
3152 {
3153 assert (("libev: io watcher list contains a loop", w != w2));
3154 w2 = w2->next;
3155 }
3156
2561 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3157 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)); 3158 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2563 } 3159 }
3160 }
2564 3161
2565 assert (timermax >= timercnt); 3162 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 3163 verify_heap (EV_A_ timers, timercnt);
2567 3164
2568#if EV_PERIODIC_ENABLE 3165#if EV_PERIODIC_ENABLE
… …
2618#if EV_MULTIPLICITY 3215#if EV_MULTIPLICITY
2619struct ev_loop * ecb_cold 3216struct ev_loop * ecb_cold
2620#else 3217#else
2621int 3218int
2622#endif 3219#endif
2623ev_default_loop (unsigned int flags) 3220ev_default_loop (unsigned int flags) EV_THROW
2624{ 3221{
2625 if (!ev_default_loop_ptr) 3222 if (!ev_default_loop_ptr)
2626 { 3223 {
2627#if EV_MULTIPLICITY 3224#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 3225 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2647 3244
2648 return ev_default_loop_ptr; 3245 return ev_default_loop_ptr;
2649} 3246}
2650 3247
2651void 3248void
2652ev_loop_fork (EV_P) 3249ev_loop_fork (EV_P) EV_THROW
2653{ 3250{
2654 postfork = 1; /* must be in line with ev_default_fork */ 3251 postfork = 1;
2655} 3252}
2656 3253
2657/*****************************************************************************/ 3254/*****************************************************************************/
2658 3255
2659void 3256void
… …
2661{ 3258{
2662 EV_CB_INVOKE ((W)w, revents); 3259 EV_CB_INVOKE ((W)w, revents);
2663} 3260}
2664 3261
2665unsigned int 3262unsigned int
2666ev_pending_count (EV_P) 3263ev_pending_count (EV_P) EV_THROW
2667{ 3264{
2668 int pri; 3265 int pri;
2669 unsigned int count = 0; 3266 unsigned int count = 0;
2670 3267
2671 for (pri = NUMPRI; pri--; ) 3268 for (pri = NUMPRI; pri--; )
… …
2675} 3272}
2676 3273
2677void noinline 3274void noinline
2678ev_invoke_pending (EV_P) 3275ev_invoke_pending (EV_P)
2679{ 3276{
2680 int pri; 3277 pendingpri = NUMPRI;
2681 3278
2682 for (pri = NUMPRI; pri--; ) 3279 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3280 {
3281 --pendingpri;
3282
2683 while (pendingcnt [pri]) 3283 while (pendingcnt [pendingpri])
2684 { 3284 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3285 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 3286
2687 p->w->pending = 0; 3287 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 3288 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 3289 EV_FREQUENT_CHECK;
2690 } 3290 }
3291 }
2691} 3292}
2692 3293
2693#if EV_IDLE_ENABLE 3294#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 3295/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 3296/* only when higher priorities are idle" logic */
… …
2785{ 3386{
2786 EV_FREQUENT_CHECK; 3387 EV_FREQUENT_CHECK;
2787 3388
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3389 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 3390 {
2790 int feed_count = 0;
2791
2792 do 3391 do
2793 { 3392 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3393 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 3394
2796 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3395 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
3055 backend_poll (EV_A_ waittime); 3654 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3655 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 3656
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3657 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 3658
3659 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 3660 if (pipe_write_skipped)
3061 { 3661 {
3062 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3662 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); 3663 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 3664 }
… …
3102 3702
3103 return activecnt; 3703 return activecnt;
3104} 3704}
3105 3705
3106void 3706void
3107ev_break (EV_P_ int how) 3707ev_break (EV_P_ int how) EV_THROW
3108{ 3708{
3109 loop_done = how; 3709 loop_done = how;
3110} 3710}
3111 3711
3112void 3712void
3113ev_ref (EV_P) 3713ev_ref (EV_P) EV_THROW
3114{ 3714{
3115 ++activecnt; 3715 ++activecnt;
3116} 3716}
3117 3717
3118void 3718void
3119ev_unref (EV_P) 3719ev_unref (EV_P) EV_THROW
3120{ 3720{
3121 --activecnt; 3721 --activecnt;
3122} 3722}
3123 3723
3124void 3724void
3125ev_now_update (EV_P) 3725ev_now_update (EV_P) EV_THROW
3126{ 3726{
3127 time_update (EV_A_ 1e100); 3727 time_update (EV_A_ 1e100);
3128} 3728}
3129 3729
3130void 3730void
3131ev_suspend (EV_P) 3731ev_suspend (EV_P) EV_THROW
3132{ 3732{
3133 ev_now_update (EV_A); 3733 ev_now_update (EV_A);
3134} 3734}
3135 3735
3136void 3736void
3137ev_resume (EV_P) 3737ev_resume (EV_P) EV_THROW
3138{ 3738{
3139 ev_tstamp mn_prev = mn_now; 3739 ev_tstamp mn_prev = mn_now;
3140 3740
3141 ev_now_update (EV_A); 3741 ev_now_update (EV_A);
3142 timers_reschedule (EV_A_ mn_now - mn_prev); 3742 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3181 w->pending = 0; 3781 w->pending = 0;
3182 } 3782 }
3183} 3783}
3184 3784
3185int 3785int
3186ev_clear_pending (EV_P_ void *w) 3786ev_clear_pending (EV_P_ void *w) EV_THROW
3187{ 3787{
3188 W w_ = (W)w; 3788 W w_ = (W)w;
3189 int pending = w_->pending; 3789 int pending = w_->pending;
3190 3790
3191 if (expect_true (pending)) 3791 if (expect_true (pending))
… …
3224} 3824}
3225 3825
3226/*****************************************************************************/ 3826/*****************************************************************************/
3227 3827
3228void noinline 3828void noinline
3229ev_io_start (EV_P_ ev_io *w) 3829ev_io_start (EV_P_ ev_io *w) EV_THROW
3230{ 3830{
3231 int fd = w->fd; 3831 int fd = w->fd;
3232 3832
3233 if (expect_false (ev_is_active (w))) 3833 if (expect_false (ev_is_active (w)))
3234 return; 3834 return;
… …
3240 3840
3241 ev_start (EV_A_ (W)w, 1); 3841 ev_start (EV_A_ (W)w, 1);
3242 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3842 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3243 wlist_add (&anfds[fd].head, (WL)w); 3843 wlist_add (&anfds[fd].head, (WL)w);
3244 3844
3845 /* common bug, apparently */
3846 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3847
3245 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3848 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3246 w->events &= ~EV__IOFDSET; 3849 w->events &= ~EV__IOFDSET;
3247 3850
3248 EV_FREQUENT_CHECK; 3851 EV_FREQUENT_CHECK;
3249} 3852}
3250 3853
3251void noinline 3854void noinline
3252ev_io_stop (EV_P_ ev_io *w) 3855ev_io_stop (EV_P_ ev_io *w) EV_THROW
3253{ 3856{
3254 clear_pending (EV_A_ (W)w); 3857 clear_pending (EV_A_ (W)w);
3255 if (expect_false (!ev_is_active (w))) 3858 if (expect_false (!ev_is_active (w)))
3256 return; 3859 return;
3257 3860
… …
3266 3869
3267 EV_FREQUENT_CHECK; 3870 EV_FREQUENT_CHECK;
3268} 3871}
3269 3872
3270void noinline 3873void noinline
3271ev_timer_start (EV_P_ ev_timer *w) 3874ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3272{ 3875{
3273 if (expect_false (ev_is_active (w))) 3876 if (expect_false (ev_is_active (w)))
3274 return; 3877 return;
3275 3878
3276 ev_at (w) += mn_now; 3879 ev_at (w) += mn_now;
… …
3290 3893
3291 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3894 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3292} 3895}
3293 3896
3294void noinline 3897void noinline
3295ev_timer_stop (EV_P_ ev_timer *w) 3898ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3296{ 3899{
3297 clear_pending (EV_A_ (W)w); 3900 clear_pending (EV_A_ (W)w);
3298 if (expect_false (!ev_is_active (w))) 3901 if (expect_false (!ev_is_active (w)))
3299 return; 3902 return;
3300 3903
… …
3320 3923
3321 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
3322} 3925}
3323 3926
3324void noinline 3927void noinline
3325ev_timer_again (EV_P_ ev_timer *w) 3928ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3326{ 3929{
3327 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3328 3931
3329 clear_pending (EV_A_ (W)w); 3932 clear_pending (EV_A_ (W)w);
3330 3933
… …
3347 3950
3348 EV_FREQUENT_CHECK; 3951 EV_FREQUENT_CHECK;
3349} 3952}
3350 3953
3351ev_tstamp 3954ev_tstamp
3352ev_timer_remaining (EV_P_ ev_timer *w) 3955ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3353{ 3956{
3354 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3957 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3355} 3958}
3356 3959
3357#if EV_PERIODIC_ENABLE 3960#if EV_PERIODIC_ENABLE
3358void noinline 3961void noinline
3359ev_periodic_start (EV_P_ ev_periodic *w) 3962ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3360{ 3963{
3361 if (expect_false (ev_is_active (w))) 3964 if (expect_false (ev_is_active (w)))
3362 return; 3965 return;
3363 3966
3364 if (w->reschedule_cb) 3967 if (w->reschedule_cb)
… …
3384 3987
3385 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3988 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3386} 3989}
3387 3990
3388void noinline 3991void noinline
3389ev_periodic_stop (EV_P_ ev_periodic *w) 3992ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3390{ 3993{
3391 clear_pending (EV_A_ (W)w); 3994 clear_pending (EV_A_ (W)w);
3392 if (expect_false (!ev_is_active (w))) 3995 if (expect_false (!ev_is_active (w)))
3393 return; 3996 return;
3394 3997
… …
3412 4015
3413 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3414} 4017}
3415 4018
3416void noinline 4019void noinline
3417ev_periodic_again (EV_P_ ev_periodic *w) 4020ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3418{ 4021{
3419 /* TODO: use adjustheap and recalculation */ 4022 /* TODO: use adjustheap and recalculation */
3420 ev_periodic_stop (EV_A_ w); 4023 ev_periodic_stop (EV_A_ w);
3421 ev_periodic_start (EV_A_ w); 4024 ev_periodic_start (EV_A_ w);
3422} 4025}
… …
3427#endif 4030#endif
3428 4031
3429#if EV_SIGNAL_ENABLE 4032#if EV_SIGNAL_ENABLE
3430 4033
3431void noinline 4034void noinline
3432ev_signal_start (EV_P_ ev_signal *w) 4035ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3433{ 4036{
3434 if (expect_false (ev_is_active (w))) 4037 if (expect_false (ev_is_active (w)))
3435 return; 4038 return;
3436 4039
3437 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4040 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3439#if EV_MULTIPLICITY 4042#if EV_MULTIPLICITY
3440 assert (("libev: a signal must not be attached to two different loops", 4043 assert (("libev: a signal must not be attached to two different loops",
3441 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4044 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3442 4045
3443 signals [w->signum - 1].loop = EV_A; 4046 signals [w->signum - 1].loop = EV_A;
4047 ECB_MEMORY_FENCE_RELEASE;
3444#endif 4048#endif
3445 4049
3446 EV_FREQUENT_CHECK; 4050 EV_FREQUENT_CHECK;
3447 4051
3448#if EV_USE_SIGNALFD 4052#if EV_USE_SIGNALFD
… …
3508 4112
3509 EV_FREQUENT_CHECK; 4113 EV_FREQUENT_CHECK;
3510} 4114}
3511 4115
3512void noinline 4116void noinline
3513ev_signal_stop (EV_P_ ev_signal *w) 4117ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3514{ 4118{
3515 clear_pending (EV_A_ (W)w); 4119 clear_pending (EV_A_ (W)w);
3516 if (expect_false (!ev_is_active (w))) 4120 if (expect_false (!ev_is_active (w)))
3517 return; 4121 return;
3518 4122
… …
3549#endif 4153#endif
3550 4154
3551#if EV_CHILD_ENABLE 4155#if EV_CHILD_ENABLE
3552 4156
3553void 4157void
3554ev_child_start (EV_P_ ev_child *w) 4158ev_child_start (EV_P_ ev_child *w) EV_THROW
3555{ 4159{
3556#if EV_MULTIPLICITY 4160#if EV_MULTIPLICITY
3557 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4161 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3558#endif 4162#endif
3559 if (expect_false (ev_is_active (w))) 4163 if (expect_false (ev_is_active (w)))
… …
3566 4170
3567 EV_FREQUENT_CHECK; 4171 EV_FREQUENT_CHECK;
3568} 4172}
3569 4173
3570void 4174void
3571ev_child_stop (EV_P_ ev_child *w) 4175ev_child_stop (EV_P_ ev_child *w) EV_THROW
3572{ 4176{
3573 clear_pending (EV_A_ (W)w); 4177 clear_pending (EV_A_ (W)w);
3574 if (expect_false (!ev_is_active (w))) 4178 if (expect_false (!ev_is_active (w)))
3575 return; 4179 return;
3576 4180
… …
3603# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4207# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3604 4208
3605static void noinline 4209static void noinline
3606infy_add (EV_P_ ev_stat *w) 4210infy_add (EV_P_ ev_stat *w)
3607{ 4211{
3608 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); 4212 w->wd = inotify_add_watch (fs_fd, w->path,
4213 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4214 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4215 | IN_DONT_FOLLOW | IN_MASK_ADD);
3609 4216
3610 if (w->wd >= 0) 4217 if (w->wd >= 0)
3611 { 4218 {
3612 struct statfs sfs; 4219 struct statfs sfs;
3613 4220
… …
3617 4224
3618 if (!fs_2625) 4225 if (!fs_2625)
3619 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4226 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3620 else if (!statfs (w->path, &sfs) 4227 else if (!statfs (w->path, &sfs)
3621 && (sfs.f_type == 0x1373 /* devfs */ 4228 && (sfs.f_type == 0x1373 /* devfs */
4229 || sfs.f_type == 0x4006 /* fat */
4230 || sfs.f_type == 0x4d44 /* msdos */
3622 || sfs.f_type == 0xEF53 /* ext2/3 */ 4231 || sfs.f_type == 0xEF53 /* ext2/3 */
4232 || sfs.f_type == 0x72b6 /* jffs2 */
4233 || sfs.f_type == 0x858458f6 /* ramfs */
4234 || sfs.f_type == 0x5346544e /* ntfs */
3623 || sfs.f_type == 0x3153464a /* jfs */ 4235 || sfs.f_type == 0x3153464a /* jfs */
4236 || sfs.f_type == 0x9123683e /* btrfs */
3624 || sfs.f_type == 0x52654973 /* reiser3 */ 4237 || sfs.f_type == 0x52654973 /* reiser3 */
3625 || sfs.f_type == 0x01021994 /* tempfs */ 4238 || sfs.f_type == 0x01021994 /* tmpfs */
3626 || sfs.f_type == 0x58465342 /* xfs */)) 4239 || sfs.f_type == 0x58465342 /* xfs */))
3627 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4240 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3628 else 4241 else
3629 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4242 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3630 } 4243 }
… …
3828#else 4441#else
3829# define EV_LSTAT(p,b) lstat (p, b) 4442# define EV_LSTAT(p,b) lstat (p, b)
3830#endif 4443#endif
3831 4444
3832void 4445void
3833ev_stat_stat (EV_P_ ev_stat *w) 4446ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3834{ 4447{
3835 if (lstat (w->path, &w->attr) < 0) 4448 if (lstat (w->path, &w->attr) < 0)
3836 w->attr.st_nlink = 0; 4449 w->attr.st_nlink = 0;
3837 else if (!w->attr.st_nlink) 4450 else if (!w->attr.st_nlink)
3838 w->attr.st_nlink = 1; 4451 w->attr.st_nlink = 1;
… …
3877 ev_feed_event (EV_A_ w, EV_STAT); 4490 ev_feed_event (EV_A_ w, EV_STAT);
3878 } 4491 }
3879} 4492}
3880 4493
3881void 4494void
3882ev_stat_start (EV_P_ ev_stat *w) 4495ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3883{ 4496{
3884 if (expect_false (ev_is_active (w))) 4497 if (expect_false (ev_is_active (w)))
3885 return; 4498 return;
3886 4499
3887 ev_stat_stat (EV_A_ w); 4500 ev_stat_stat (EV_A_ w);
… …
3908 4521
3909 EV_FREQUENT_CHECK; 4522 EV_FREQUENT_CHECK;
3910} 4523}
3911 4524
3912void 4525void
3913ev_stat_stop (EV_P_ ev_stat *w) 4526ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3914{ 4527{
3915 clear_pending (EV_A_ (W)w); 4528 clear_pending (EV_A_ (W)w);
3916 if (expect_false (!ev_is_active (w))) 4529 if (expect_false (!ev_is_active (w)))
3917 return; 4530 return;
3918 4531
… …
3934} 4547}
3935#endif 4548#endif
3936 4549
3937#if EV_IDLE_ENABLE 4550#if EV_IDLE_ENABLE
3938void 4551void
3939ev_idle_start (EV_P_ ev_idle *w) 4552ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3940{ 4553{
3941 if (expect_false (ev_is_active (w))) 4554 if (expect_false (ev_is_active (w)))
3942 return; 4555 return;
3943 4556
3944 pri_adjust (EV_A_ (W)w); 4557 pri_adjust (EV_A_ (W)w);
… …
3957 4570
3958 EV_FREQUENT_CHECK; 4571 EV_FREQUENT_CHECK;
3959} 4572}
3960 4573
3961void 4574void
3962ev_idle_stop (EV_P_ ev_idle *w) 4575ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3963{ 4576{
3964 clear_pending (EV_A_ (W)w); 4577 clear_pending (EV_A_ (W)w);
3965 if (expect_false (!ev_is_active (w))) 4578 if (expect_false (!ev_is_active (w)))
3966 return; 4579 return;
3967 4580
… …
3981} 4594}
3982#endif 4595#endif
3983 4596
3984#if EV_PREPARE_ENABLE 4597#if EV_PREPARE_ENABLE
3985void 4598void
3986ev_prepare_start (EV_P_ ev_prepare *w) 4599ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3987{ 4600{
3988 if (expect_false (ev_is_active (w))) 4601 if (expect_false (ev_is_active (w)))
3989 return; 4602 return;
3990 4603
3991 EV_FREQUENT_CHECK; 4604 EV_FREQUENT_CHECK;
… …
3996 4609
3997 EV_FREQUENT_CHECK; 4610 EV_FREQUENT_CHECK;
3998} 4611}
3999 4612
4000void 4613void
4001ev_prepare_stop (EV_P_ ev_prepare *w) 4614ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4002{ 4615{
4003 clear_pending (EV_A_ (W)w); 4616 clear_pending (EV_A_ (W)w);
4004 if (expect_false (!ev_is_active (w))) 4617 if (expect_false (!ev_is_active (w)))
4005 return; 4618 return;
4006 4619
… …
4019} 4632}
4020#endif 4633#endif
4021 4634
4022#if EV_CHECK_ENABLE 4635#if EV_CHECK_ENABLE
4023void 4636void
4024ev_check_start (EV_P_ ev_check *w) 4637ev_check_start (EV_P_ ev_check *w) EV_THROW
4025{ 4638{
4026 if (expect_false (ev_is_active (w))) 4639 if (expect_false (ev_is_active (w)))
4027 return; 4640 return;
4028 4641
4029 EV_FREQUENT_CHECK; 4642 EV_FREQUENT_CHECK;
… …
4034 4647
4035 EV_FREQUENT_CHECK; 4648 EV_FREQUENT_CHECK;
4036} 4649}
4037 4650
4038void 4651void
4039ev_check_stop (EV_P_ ev_check *w) 4652ev_check_stop (EV_P_ ev_check *w) EV_THROW
4040{ 4653{
4041 clear_pending (EV_A_ (W)w); 4654 clear_pending (EV_A_ (W)w);
4042 if (expect_false (!ev_is_active (w))) 4655 if (expect_false (!ev_is_active (w)))
4043 return; 4656 return;
4044 4657
… …
4057} 4670}
4058#endif 4671#endif
4059 4672
4060#if EV_EMBED_ENABLE 4673#if EV_EMBED_ENABLE
4061void noinline 4674void noinline
4062ev_embed_sweep (EV_P_ ev_embed *w) 4675ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4063{ 4676{
4064 ev_run (w->other, EVRUN_NOWAIT); 4677 ev_run (w->other, EVRUN_NOWAIT);
4065} 4678}
4066 4679
4067static void 4680static void
… …
4115 ev_idle_stop (EV_A_ idle); 4728 ev_idle_stop (EV_A_ idle);
4116} 4729}
4117#endif 4730#endif
4118 4731
4119void 4732void
4120ev_embed_start (EV_P_ ev_embed *w) 4733ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4121{ 4734{
4122 if (expect_false (ev_is_active (w))) 4735 if (expect_false (ev_is_active (w)))
4123 return; 4736 return;
4124 4737
4125 { 4738 {
… …
4146 4759
4147 EV_FREQUENT_CHECK; 4760 EV_FREQUENT_CHECK;
4148} 4761}
4149 4762
4150void 4763void
4151ev_embed_stop (EV_P_ ev_embed *w) 4764ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4152{ 4765{
4153 clear_pending (EV_A_ (W)w); 4766 clear_pending (EV_A_ (W)w);
4154 if (expect_false (!ev_is_active (w))) 4767 if (expect_false (!ev_is_active (w)))
4155 return; 4768 return;
4156 4769
… …
4166} 4779}
4167#endif 4780#endif
4168 4781
4169#if EV_FORK_ENABLE 4782#if EV_FORK_ENABLE
4170void 4783void
4171ev_fork_start (EV_P_ ev_fork *w) 4784ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4172{ 4785{
4173 if (expect_false (ev_is_active (w))) 4786 if (expect_false (ev_is_active (w)))
4174 return; 4787 return;
4175 4788
4176 EV_FREQUENT_CHECK; 4789 EV_FREQUENT_CHECK;
… …
4181 4794
4182 EV_FREQUENT_CHECK; 4795 EV_FREQUENT_CHECK;
4183} 4796}
4184 4797
4185void 4798void
4186ev_fork_stop (EV_P_ ev_fork *w) 4799ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4187{ 4800{
4188 clear_pending (EV_A_ (W)w); 4801 clear_pending (EV_A_ (W)w);
4189 if (expect_false (!ev_is_active (w))) 4802 if (expect_false (!ev_is_active (w)))
4190 return; 4803 return;
4191 4804
… …
4204} 4817}
4205#endif 4818#endif
4206 4819
4207#if EV_CLEANUP_ENABLE 4820#if EV_CLEANUP_ENABLE
4208void 4821void
4209ev_cleanup_start (EV_P_ ev_cleanup *w) 4822ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4210{ 4823{
4211 if (expect_false (ev_is_active (w))) 4824 if (expect_false (ev_is_active (w)))
4212 return; 4825 return;
4213 4826
4214 EV_FREQUENT_CHECK; 4827 EV_FREQUENT_CHECK;
… …
4221 ev_unref (EV_A); 4834 ev_unref (EV_A);
4222 EV_FREQUENT_CHECK; 4835 EV_FREQUENT_CHECK;
4223} 4836}
4224 4837
4225void 4838void
4226ev_cleanup_stop (EV_P_ ev_cleanup *w) 4839ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4227{ 4840{
4228 clear_pending (EV_A_ (W)w); 4841 clear_pending (EV_A_ (W)w);
4229 if (expect_false (!ev_is_active (w))) 4842 if (expect_false (!ev_is_active (w)))
4230 return; 4843 return;
4231 4844
… …
4245} 4858}
4246#endif 4859#endif
4247 4860
4248#if EV_ASYNC_ENABLE 4861#if EV_ASYNC_ENABLE
4249void 4862void
4250ev_async_start (EV_P_ ev_async *w) 4863ev_async_start (EV_P_ ev_async *w) EV_THROW
4251{ 4864{
4252 if (expect_false (ev_is_active (w))) 4865 if (expect_false (ev_is_active (w)))
4253 return; 4866 return;
4254 4867
4255 w->sent = 0; 4868 w->sent = 0;
… …
4264 4877
4265 EV_FREQUENT_CHECK; 4878 EV_FREQUENT_CHECK;
4266} 4879}
4267 4880
4268void 4881void
4269ev_async_stop (EV_P_ ev_async *w) 4882ev_async_stop (EV_P_ ev_async *w) EV_THROW
4270{ 4883{
4271 clear_pending (EV_A_ (W)w); 4884 clear_pending (EV_A_ (W)w);
4272 if (expect_false (!ev_is_active (w))) 4885 if (expect_false (!ev_is_active (w)))
4273 return; 4886 return;
4274 4887
… …
4285 4898
4286 EV_FREQUENT_CHECK; 4899 EV_FREQUENT_CHECK;
4287} 4900}
4288 4901
4289void 4902void
4290ev_async_send (EV_P_ ev_async *w) 4903ev_async_send (EV_P_ ev_async *w) EV_THROW
4291{ 4904{
4292 w->sent = 1; 4905 w->sent = 1;
4293 evpipe_write (EV_A_ &async_pending); 4906 evpipe_write (EV_A_ &async_pending);
4294} 4907}
4295#endif 4908#endif
… …
4332 4945
4333 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4946 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4334} 4947}
4335 4948
4336void 4949void
4337ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4950ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4338{ 4951{
4339 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4952 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4340 4953
4341 if (expect_false (!once)) 4954 if (expect_false (!once))
4342 { 4955 {
… …
4364 4977
4365/*****************************************************************************/ 4978/*****************************************************************************/
4366 4979
4367#if EV_WALK_ENABLE 4980#if EV_WALK_ENABLE
4368void ecb_cold 4981void ecb_cold
4369ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4982ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4370{ 4983{
4371 int i, j; 4984 int i, j;
4372 ev_watcher_list *wl, *wn; 4985 ev_watcher_list *wl, *wn;
4373 4986
4374 if (types & (EV_IO | EV_EMBED)) 4987 if (types & (EV_IO | EV_EMBED))

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