ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.463 by root, Thu Jan 16 11:51:05 2014 UTC vs.
Revision 1.489 by root, Sat Dec 29 14:23:20 2018 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2018 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
… …
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
… …
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
… …
256# else 258# else
257# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
258# endif 260# endif
259#endif 261#endif
260 262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
269# endif
270#endif
271
261#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 274# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 275# else
265# define EV_USE_MONOTONIC 0 276# define EV_USE_MONOTONIC 0
… …
354 365
355#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 368#endif
358 369
359#ifdef ANDROID 370#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 372# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
… …
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 494/* ECB.H BEGIN */
484/* 495/*
485 * libecb - http://software.schmorp.de/pkg/libecb 496 * libecb - http://software.schmorp.de/pkg/libecb
486 * 497 *
487 * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> 498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 499 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 500 * All rights reserved.
490 * 501 *
491 * Redistribution and use in source and binary forms, with or without modifica- 502 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 503 * tion, are permitted provided that the following conditions are met:
… …
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 517 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 518 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 519 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 520 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE. 521 * OF THE POSSIBILITY OF SUCH DAMAGE.
522 *
523 * Alternatively, the contents of this file may be used under the terms of
524 * the GNU General Public License ("GPL") version 2 or any later version,
525 * in which case the provisions of the GPL are applicable instead of
526 * the above. If you wish to allow the use of your version of this file
527 * only under the terms of the GPL and not to allow others to use your
528 * version of this file under the BSD license, indicate your decision
529 * by deleting the provisions above and replace them with the notice
530 * and other provisions required by the GPL. If you do not delete the
531 * provisions above, a recipient may use your version of this file under
532 * either the BSD or the GPL.
511 */ 533 */
512 534
513#ifndef ECB_H 535#ifndef ECB_H
514#define ECB_H 536#define ECB_H
515 537
516/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003 539#define ECB_VERSION 0x00010005
518 540
519#ifdef _WIN32 541#ifdef _WIN32
520 typedef signed char int8_t; 542 typedef signed char int8_t;
521 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
522 typedef signed short int16_t; 544 typedef signed short int16_t;
… …
539 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
541 #endif 563 #endif
542#else 564#else
543 #include <inttypes.h> 565 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
546 #else 568 #else
547 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
548 #endif 570 #endif
549#endif 571#endif
550 572
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575
551/* work around x32 idiocy by defining proper macros */ 576/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 578 #if _ILP32
554 #define ECB_AMD64_X32 1 579 #define ECB_AMD64_X32 1
555 #else 580 #else
556 #define ECB_AMD64 1 581 #define ECB_AMD64 1
557 #endif 582 #endif
… …
562 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 588 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have 589 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place. 590 * an issue with that they should have done it right in the first place.
566 */ 591 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
570 #else 594#else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif 596#endif
573#endif
574 597
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 598#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576#define ECB_C99 (__STDC_VERSION__ >= 199901L) 599
577#define ECB_C11 (__STDC_VERSION__ >= 201112L) 600#if __clang__ && defined __has_builtin
601 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
602#else
603 #define ECB_CLANG_BUILTIN(x) 0
604#endif
605
606#if __clang__ && defined __has_extension
607 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
608#else
609 #define ECB_CLANG_EXTENSION(x) 0
610#endif
611
578#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
614#define ECB_CPP14 (__cplusplus >= 201402L)
615#define ECB_CPP17 (__cplusplus >= 201703L)
616
617#if ECB_CPP
618 #define ECB_C 0
619 #define ECB_STDC_VERSION 0
620#else
621 #define ECB_C 1
622 #define ECB_STDC_VERSION __STDC_VERSION__
623#endif
624
625#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
626#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
627#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
580 628
581#if ECB_CPP 629#if ECB_CPP
582 #define ECB_EXTERN_C extern "C" 630 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 631 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END } 632 #define ECB_EXTERN_C_END }
… …
597 #define ECB_NO_SMP 1 645 #define ECB_NO_SMP 1
598#endif 646#endif
599 647
600#if ECB_NO_SMP 648#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0) 649 #define ECB_MEMORY_FENCE do { } while (0)
650#endif
651
652/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
653#if __xlC__ && ECB_CPP
654 #include <builtins.h>
655#endif
656
657#if 1400 <= _MSC_VER
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
602#endif 659#endif
603 660
604#ifndef ECB_MEMORY_FENCE 661#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
606 #if __i386 || __i386__ 663 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 667 #elif ECB_GCC_AMD64
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 671 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
673 #elif defined __ARM_ARCH_2__ \
674 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
675 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
676 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
677 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
678 || defined __ARM_ARCH_5TEJ__
679 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 680 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 681 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
682 || defined __ARM_ARCH_6T2__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 684 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 685 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
687 #elif __aarch64__
688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622 #elif (__sparc || __sparc__) && !__sparcv8 689 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__ 693 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
648 715
649#ifndef ECB_MEMORY_FENCE 716#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7) 717 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */ 718 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
653 722
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 723 #elif ECB_CLANG_EXTENSION(c_atomic)
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model. 724 /* see comment below (stdatomic.h) about the C11 memory model. */
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */ 726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
662 728
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize () 730 #define ECB_MEMORY_FENCE __sync_synchronize ()
665 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 731 #elif _MSC_VER >= 1500 /* VC++ 2008 */
666 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 732 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
695 /* any fence other than seq_cst, which isn't very efficient for us. */ 761 /* any fence other than seq_cst, which isn't very efficient for us. */
696 /* Why that is, we don't know - either the C11 memory model is quite useless */ 762 /* Why that is, we don't know - either the C11 memory model is quite useless */
697 /* for most usages, or gcc and clang have a bug */ 763 /* for most usages, or gcc and clang have a bug */
698 /* I *currently* lean towards the latter, and inefficiently implement */ 764 /* I *currently* lean towards the latter, and inefficiently implement */
699 /* all three of ecb's fences as a seq_cst fence */ 765 /* all three of ecb's fences as a seq_cst fence */
766 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
767 /* for all __atomic_thread_fence's except seq_cst */
700 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 768 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
701 #endif 769 #endif
702#endif 770#endif
703 771
704#ifndef ECB_MEMORY_FENCE 772#ifndef ECB_MEMORY_FENCE
… …
727 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 795 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728#endif 796#endif
729 797
730/*****************************************************************************/ 798/*****************************************************************************/
731 799
732#if __cplusplus 800#if ECB_CPP
733 #define ecb_inline static inline 801 #define ecb_inline static inline
734#elif ECB_GCC_VERSION(2,5) 802#elif ECB_GCC_VERSION(2,5)
735 #define ecb_inline static __inline__ 803 #define ecb_inline static __inline__
736#elif ECB_C99 804#elif ECB_C99
737 #define ecb_inline static inline 805 #define ecb_inline static inline
… …
751 819
752#define ECB_CONCAT_(a, b) a ## b 820#define ECB_CONCAT_(a, b) a ## b
753#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 821#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754#define ECB_STRINGIFY_(a) # a 822#define ECB_STRINGIFY_(a) # a
755#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 823#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
824#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
756 825
757#define ecb_function_ ecb_inline 826#define ecb_function_ ecb_inline
758 827
759#if ECB_GCC_VERSION(3,1) 828#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760 #define ecb_attribute(attrlist) __attribute__(attrlist) 829 #define ecb_attribute(attrlist) __attribute__ (attrlist)
830#else
831 #define ecb_attribute(attrlist)
832#endif
833
834#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
761 #define ecb_is_constant(expr) __builtin_constant_p (expr) 835 #define ecb_is_constant(expr) __builtin_constant_p (expr)
836#else
837 /* possible C11 impl for integral types
838 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
839 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
840
841 #define ecb_is_constant(expr) 0
842#endif
843
844#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
762 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 845 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
846#else
847 #define ecb_expect(expr,value) (expr)
848#endif
849
850#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
763 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 851 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764#else 852#else
765 #define ecb_attribute(attrlist)
766 #define ecb_is_constant(expr) 0
767 #define ecb_expect(expr,value) (expr)
768 #define ecb_prefetch(addr,rw,locality) 853 #define ecb_prefetch(addr,rw,locality)
769#endif 854#endif
770 855
771/* no emulation for ecb_decltype */ 856/* no emulation for ecb_decltype */
772#if ECB_GCC_VERSION(4,5) 857#if ECB_CPP11
858 // older implementations might have problems with decltype(x)::type, work around it
859 template<class T> struct ecb_decltype_t { typedef T type; };
773 #define ecb_decltype(x) __decltype(x) 860 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774#elif ECB_GCC_VERSION(3,0) 861#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775 #define ecb_decltype(x) __typeof(x) 862 #define ecb_decltype(x) __typeof__ (x)
776#endif 863#endif
777 864
865#if _MSC_VER >= 1300
866 #define ecb_deprecated __declspec (deprecated)
867#else
868 #define ecb_deprecated ecb_attribute ((__deprecated__))
869#endif
870
871#if _MSC_VER >= 1500
872 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
873#elif ECB_GCC_VERSION(4,5)
874 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
875#else
876 #define ecb_deprecated_message(msg) ecb_deprecated
877#endif
878
879#if _MSC_VER >= 1400
880 #define ecb_noinline __declspec (noinline)
881#else
778#define ecb_noinline ecb_attribute ((__noinline__)) 882 #define ecb_noinline ecb_attribute ((__noinline__))
883#endif
884
779#define ecb_unused ecb_attribute ((__unused__)) 885#define ecb_unused ecb_attribute ((__unused__))
780#define ecb_const ecb_attribute ((__const__)) 886#define ecb_const ecb_attribute ((__const__))
781#define ecb_pure ecb_attribute ((__pure__)) 887#define ecb_pure ecb_attribute ((__pure__))
782 888
783#if ECB_C11 889#if ECB_C11 || __IBMC_NORETURN
890 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
784 #define ecb_noreturn _Noreturn 891 #define ecb_noreturn _Noreturn
892#elif ECB_CPP11
893 #define ecb_noreturn [[noreturn]]
894#elif _MSC_VER >= 1200
895 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
896 #define ecb_noreturn __declspec (noreturn)
785#else 897#else
786 #define ecb_noreturn ecb_attribute ((__noreturn__)) 898 #define ecb_noreturn ecb_attribute ((__noreturn__))
787#endif 899#endif
788 900
789#if ECB_GCC_VERSION(4,3) 901#if ECB_GCC_VERSION(4,3)
… …
804/* for compatibility to the rest of the world */ 916/* for compatibility to the rest of the world */
805#define ecb_likely(expr) ecb_expect_true (expr) 917#define ecb_likely(expr) ecb_expect_true (expr)
806#define ecb_unlikely(expr) ecb_expect_false (expr) 918#define ecb_unlikely(expr) ecb_expect_false (expr)
807 919
808/* count trailing zero bits and count # of one bits */ 920/* count trailing zero bits and count # of one bits */
809#if ECB_GCC_VERSION(3,4) 921#if ECB_GCC_VERSION(3,4) \
922 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
923 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
924 && ECB_CLANG_BUILTIN(__builtin_popcount))
810 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 925 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
811 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 926 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 927 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813 #define ecb_ctz32(x) __builtin_ctz (x) 928 #define ecb_ctz32(x) __builtin_ctz (x)
814 #define ecb_ctz64(x) __builtin_ctzll (x) 929 #define ecb_ctz64(x) __builtin_ctzll (x)
815 #define ecb_popcount32(x) __builtin_popcount (x) 930 #define ecb_popcount32(x) __builtin_popcount (x)
816 /* no popcountll */ 931 /* no popcountll */
817#else 932#else
818 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 933 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819 ecb_function_ int 934 ecb_function_ ecb_const int
820 ecb_ctz32 (uint32_t x) 935 ecb_ctz32 (uint32_t x)
821 { 936 {
937#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
938 unsigned long r;
939 _BitScanForward (&r, x);
940 return (int)r;
941#else
822 int r = 0; 942 int r = 0;
823 943
824 x &= ~x + 1; /* this isolates the lowest bit */ 944 x &= ~x + 1; /* this isolates the lowest bit */
825 945
826#if ECB_branchless_on_i386 946#if ECB_branchless_on_i386
… …
836 if (x & 0xff00ff00) r += 8; 956 if (x & 0xff00ff00) r += 8;
837 if (x & 0xffff0000) r += 16; 957 if (x & 0xffff0000) r += 16;
838#endif 958#endif
839 959
840 return r; 960 return r;
961#endif
841 } 962 }
842 963
843 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 964 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844 ecb_function_ int 965 ecb_function_ ecb_const int
845 ecb_ctz64 (uint64_t x) 966 ecb_ctz64 (uint64_t x)
846 { 967 {
968#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
969 unsigned long r;
970 _BitScanForward64 (&r, x);
971 return (int)r;
972#else
847 int shift = x & 0xffffffffU ? 0 : 32; 973 int shift = x & 0xffffffff ? 0 : 32;
848 return ecb_ctz32 (x >> shift) + shift; 974 return ecb_ctz32 (x >> shift) + shift;
975#endif
849 } 976 }
850 977
851 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 978 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852 ecb_function_ int 979 ecb_function_ ecb_const int
853 ecb_popcount32 (uint32_t x) 980 ecb_popcount32 (uint32_t x)
854 { 981 {
855 x -= (x >> 1) & 0x55555555; 982 x -= (x >> 1) & 0x55555555;
856 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 983 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857 x = ((x >> 4) + x) & 0x0f0f0f0f; 984 x = ((x >> 4) + x) & 0x0f0f0f0f;
858 x *= 0x01010101; 985 x *= 0x01010101;
859 986
860 return x >> 24; 987 return x >> 24;
861 } 988 }
862 989
863 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 990 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864 ecb_function_ int ecb_ld32 (uint32_t x) 991 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865 { 992 {
993#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanReverse (&r, x);
996 return (int)r;
997#else
866 int r = 0; 998 int r = 0;
867 999
868 if (x >> 16) { x >>= 16; r += 16; } 1000 if (x >> 16) { x >>= 16; r += 16; }
869 if (x >> 8) { x >>= 8; r += 8; } 1001 if (x >> 8) { x >>= 8; r += 8; }
870 if (x >> 4) { x >>= 4; r += 4; } 1002 if (x >> 4) { x >>= 4; r += 4; }
871 if (x >> 2) { x >>= 2; r += 2; } 1003 if (x >> 2) { x >>= 2; r += 2; }
872 if (x >> 1) { r += 1; } 1004 if (x >> 1) { r += 1; }
873 1005
874 return r; 1006 return r;
1007#endif
875 } 1008 }
876 1009
877 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1010 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878 ecb_function_ int ecb_ld64 (uint64_t x) 1011 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879 { 1012 {
1013#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1014 unsigned long r;
1015 _BitScanReverse64 (&r, x);
1016 return (int)r;
1017#else
880 int r = 0; 1018 int r = 0;
881 1019
882 if (x >> 32) { x >>= 32; r += 32; } 1020 if (x >> 32) { x >>= 32; r += 32; }
883 1021
884 return r + ecb_ld32 (x); 1022 return r + ecb_ld32 (x);
1023#endif
885 } 1024 }
886#endif 1025#endif
887 1026
888ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1027ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
889ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1028ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
890ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1029ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
891ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1030ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892 1031
893ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1032ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1033ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895{ 1034{
896 return ( (x * 0x0802U & 0x22110U) 1035 return ( (x * 0x0802U & 0x22110U)
897 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1036 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898} 1037}
899 1038
900ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1039ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1040ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902{ 1041{
903 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1042 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1043 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1044 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906 x = ( x >> 8 ) | ( x << 8); 1045 x = ( x >> 8 ) | ( x << 8);
907 1046
908 return x; 1047 return x;
909} 1048}
910 1049
911ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1050ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1051ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913{ 1052{
914 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1053 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1054 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1055 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1056 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
920 return x; 1059 return x;
921} 1060}
922 1061
923/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1062/* popcount64 is only available on 64 bit cpus as gcc builtin */
924/* so for this version we are lazy */ 1063/* so for this version we are lazy */
925ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1064ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926ecb_function_ int 1065ecb_function_ ecb_const int
927ecb_popcount64 (uint64_t x) 1066ecb_popcount64 (uint64_t x)
928{ 1067{
929 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1068 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930} 1069}
931 1070
932ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1071ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
933ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1072ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
934ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1073ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
935ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1074ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
936ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1075ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
937ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1076ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
938ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1077ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
939ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1078ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
940 1079
941ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1080ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
942ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1081ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
943ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1082ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
944ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1083ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
945ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1084ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
946ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1085ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
947ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1086ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
948ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
949 1088
950#if ECB_GCC_VERSION(4,3) 1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else
951 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1094 #endif
952 #define ecb_bswap32(x) __builtin_bswap32 (x) 1095 #define ecb_bswap32(x) __builtin_bswap32 (x)
953 #define ecb_bswap64(x) __builtin_bswap64 (x) 1096 #define ecb_bswap64(x) __builtin_bswap64 (x)
1097#elif _MSC_VER
1098 #include <stdlib.h>
1099 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1100 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1101 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
954#else 1102#else
955 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1103 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956 ecb_function_ uint16_t 1104 ecb_function_ ecb_const uint16_t
957 ecb_bswap16 (uint16_t x) 1105 ecb_bswap16 (uint16_t x)
958 { 1106 {
959 return ecb_rotl16 (x, 8); 1107 return ecb_rotl16 (x, 8);
960 } 1108 }
961 1109
962 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1110 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963 ecb_function_ uint32_t 1111 ecb_function_ ecb_const uint32_t
964 ecb_bswap32 (uint32_t x) 1112 ecb_bswap32 (uint32_t x)
965 { 1113 {
966 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1114 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967 } 1115 }
968 1116
969 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1117 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970 ecb_function_ uint64_t 1118 ecb_function_ ecb_const uint64_t
971 ecb_bswap64 (uint64_t x) 1119 ecb_bswap64 (uint64_t x)
972 { 1120 {
973 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1121 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974 } 1122 }
975#endif 1123#endif
976 1124
977#if ECB_GCC_VERSION(4,5) 1125#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978 #define ecb_unreachable() __builtin_unreachable () 1126 #define ecb_unreachable() __builtin_unreachable ()
979#else 1127#else
980 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1128 /* this seems to work fine, but gcc always emits a warning for it :/ */
981 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1129 ecb_inline ecb_noreturn void ecb_unreachable (void);
982 ecb_inline void ecb_unreachable (void) { } 1130 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983#endif 1131#endif
984 1132
985/* try to tell the compiler that some condition is definitely true */ 1133/* try to tell the compiler that some condition is definitely true */
986#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1134#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987 1135
988ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1136ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989ecb_inline unsigned char 1137ecb_inline ecb_const uint32_t
990ecb_byteorder_helper (void) 1138ecb_byteorder_helper (void)
991{ 1139{
992 /* the union code still generates code under pressure in gcc, */ 1140 /* the union code still generates code under pressure in gcc, */
993 /* but less than using pointers, and always seems to */ 1141 /* but less than using pointers, and always seems to */
994 /* successfully return a constant. */ 1142 /* successfully return a constant. */
995 /* the reason why we have this horrible preprocessor mess */ 1143 /* the reason why we have this horrible preprocessor mess */
996 /* is to avoid it in all cases, at least on common architectures */ 1144 /* is to avoid it in all cases, at least on common architectures */
997 /* or when using a recent enough gcc version (>= 4.6) */ 1145 /* or when using a recent enough gcc version (>= 4.6) */
998#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999 return 0x44;
1000#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1146#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1147 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1148 #define ECB_LITTLE_ENDIAN 1
1001 return 0x44; 1149 return 0x44332211;
1002#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1150#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1151 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1152 #define ECB_BIG_ENDIAN 1
1003 return 0x11; 1153 return 0x11223344;
1004#else 1154#else
1005 union 1155 union
1006 { 1156 {
1157 uint8_t c[4];
1007 uint32_t i; 1158 uint32_t u;
1008 uint8_t c;
1009 } u = { 0x11223344 }; 1159 } u = { 0x11, 0x22, 0x33, 0x44 };
1010 return u.c; 1160 return u.u;
1011#endif 1161#endif
1012} 1162}
1013 1163
1014ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1164ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1016ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1166ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1018 1168
1019#if ECB_GCC_VERSION(3,0) || ECB_C99 1169#if ECB_GCC_VERSION(3,0) || ECB_C99
1020 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1021#else 1171#else
1022 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1023#endif 1173#endif
1024 1174
1025#if __cplusplus 1175#if ECB_CPP
1026 template<typename T> 1176 template<typename T>
1027 static inline T ecb_div_rd (T val, T div) 1177 static inline T ecb_div_rd (T val, T div)
1028 { 1178 {
1029 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1179 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030 } 1180 }
… …
1047 } 1197 }
1048#else 1198#else
1049 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050#endif 1200#endif
1051 1201
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x)
1205{
1206 unsigned int s = (x & 0x8000) << (31 - 15);
1207 int e = (x >> 10) & 0x001f;
1208 unsigned int m = x & 0x03ff;
1209
1210 if (ecb_expect_false (e == 31))
1211 /* infinity or NaN */
1212 e = 255 - (127 - 15);
1213 else if (ecb_expect_false (!e))
1214 {
1215 if (ecb_expect_true (!m))
1216 /* zero, handled by code below by forcing e to 0 */
1217 e = 0 - (127 - 15);
1218 else
1219 {
1220 /* subnormal, renormalise */
1221 unsigned int s = 10 - ecb_ld32 (m);
1222
1223 m = (m << s) & 0x3ff; /* mask implicit bit */
1224 e -= s - 1;
1225 }
1226 }
1227
1228 /* e and m now are normalised, or zero, (or inf or nan) */
1229 e += 127 - 15;
1230
1231 return s | (e << 23) | (m << (23 - 10));
1232}
1233
1234ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1235ecb_function_ ecb_const uint16_t
1236ecb_binary32_to_binary16 (uint32_t x)
1237{
1238 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1239 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1240 unsigned int m = x & 0x007fffff;
1241
1242 x &= 0x7fffffff;
1243
1244 /* if it's within range of binary16 normals, use fast path */
1245 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1246 {
1247 /* mantissa round-to-even */
1248 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1249
1250 /* handle overflow */
1251 if (ecb_expect_false (m >= 0x00800000))
1252 {
1253 m >>= 1;
1254 e += 1;
1255 }
1256
1257 return s | (e << 10) | (m >> (23 - 10));
1258 }
1259
1260 /* handle large numbers and infinity */
1261 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1262 return s | 0x7c00;
1263
1264 /* handle zero, subnormals and small numbers */
1265 if (ecb_expect_true (x < 0x38800000))
1266 {
1267 /* zero */
1268 if (ecb_expect_true (!x))
1269 return s;
1270
1271 /* handle subnormals */
1272
1273 /* too small, will be zero */
1274 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1275 return s;
1276
1277 m |= 0x00800000; /* make implicit bit explicit */
1278
1279 /* very tricky - we need to round to the nearest e (+10) bit value */
1280 {
1281 unsigned int bits = 14 - e;
1282 unsigned int half = (1 << (bits - 1)) - 1;
1283 unsigned int even = (m >> bits) & 1;
1284
1285 /* if this overflows, we will end up with a normalised number */
1286 m = (m + half + even) >> bits;
1287 }
1288
1289 return s | m;
1290 }
1291
1292 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1293 m >>= 13;
1294
1295 return s | 0x7c00 | m | !m;
1296}
1297
1052/*******************************************************************************/ 1298/*******************************************************************************/
1053/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1299/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054 1300
1055/* basically, everything uses "ieee pure-endian" floating point numbers */ 1301/* basically, everything uses "ieee pure-endian" floating point numbers */
1056/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1302/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057#if 0 \ 1303#if 0 \
1058 || __i386 || __i386__ \ 1304 || __i386 || __i386__ \
1059 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1305 || ECB_GCC_AMD64 \
1060 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1306 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061 || defined __arm__ && defined __ARM_EABI__ \
1062 || defined __s390__ || defined __s390x__ \ 1307 || defined __s390__ || defined __s390x__ \
1063 || defined __mips__ \ 1308 || defined __mips__ \
1064 || defined __alpha__ \ 1309 || defined __alpha__ \
1065 || defined __hppa__ \ 1310 || defined __hppa__ \
1066 || defined __ia64__ \ 1311 || defined __ia64__ \
1067 || defined __m68k__ \ 1312 || defined __m68k__ \
1068 || defined __m88k__ \ 1313 || defined __m88k__ \
1069 || defined __sh__ \ 1314 || defined __sh__ \
1070 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1315 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1316 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1317 || defined __aarch64__
1071 #define ECB_STDFP 1 1318 #define ECB_STDFP 1
1072 #include <string.h> /* for memcpy */ 1319 #include <string.h> /* for memcpy */
1073#else 1320#else
1074 #define ECB_STDFP 0 1321 #define ECB_STDFP 0
1075#endif 1322#endif
… …
1089 #define ECB_NAN NAN 1336 #define ECB_NAN NAN
1090 #else 1337 #else
1091 #define ECB_NAN ECB_INFINITY 1338 #define ECB_NAN ECB_INFINITY
1092 #endif 1339 #endif
1093 1340
1094 /* converts an ieee half/binary16 to a float */ 1341 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1342 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096 ecb_function_ float 1343 #define ecb_frexpf(x,e) frexpf ((x), (e))
1097 ecb_binary16_to_float (uint16_t x) 1344 #else
1098 { 1345 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099 int e = (x >> 10) & 0x1f; 1346 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100 int m = x & 0x3ff; 1347 #endif
1101 float r;
1102
1103 if (!e ) r = ldexpf (m , -24);
1104 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105 else if (m ) r = ECB_NAN;
1106 else r = ECB_INFINITY;
1107
1108 return x & 0x8000 ? -r : r;
1109 }
1110 1348
1111 /* convert a float to ieee single/binary32 */ 1349 /* convert a float to ieee single/binary32 */
1112 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1350 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1113 ecb_function_ uint32_t 1351 ecb_function_ ecb_const uint32_t
1114 ecb_float_to_binary32 (float x) 1352 ecb_float_to_binary32 (float x)
1115 { 1353 {
1116 uint32_t r; 1354 uint32_t r;
1117 1355
1118 #if ECB_STDFP 1356 #if ECB_STDFP
… …
1125 if (x == 0e0f ) return 0x00000000U; 1363 if (x == 0e0f ) return 0x00000000U;
1126 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1364 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1365 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128 if (x != x ) return 0x7fbfffffU; 1366 if (x != x ) return 0x7fbfffffU;
1129 1367
1130 m = frexpf (x, &e) * 0x1000000U; 1368 m = ecb_frexpf (x, &e) * 0x1000000U;
1131 1369
1132 r = m & 0x80000000U; 1370 r = m & 0x80000000U;
1133 1371
1134 if (r) 1372 if (r)
1135 m = -m; 1373 m = -m;
… …
1147 1385
1148 return r; 1386 return r;
1149 } 1387 }
1150 1388
1151 /* converts an ieee single/binary32 to a float */ 1389 /* converts an ieee single/binary32 to a float */
1152 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1390 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1153 ecb_function_ float 1391 ecb_function_ ecb_const float
1154 ecb_binary32_to_float (uint32_t x) 1392 ecb_binary32_to_float (uint32_t x)
1155 { 1393 {
1156 float r; 1394 float r;
1157 1395
1158 #if ECB_STDFP 1396 #if ECB_STDFP
… …
1168 x |= 0x800000U; 1406 x |= 0x800000U;
1169 else 1407 else
1170 e = 1; 1408 e = 1;
1171 1409
1172 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1410 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1173 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1411 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174 1412
1175 r = neg ? -r : r; 1413 r = neg ? -r : r;
1176 #endif 1414 #endif
1177 1415
1178 return r; 1416 return r;
1179 } 1417 }
1180 1418
1181 /* convert a double to ieee double/binary64 */ 1419 /* convert a double to ieee double/binary64 */
1182 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1420 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1183 ecb_function_ uint64_t 1421 ecb_function_ ecb_const uint64_t
1184 ecb_double_to_binary64 (double x) 1422 ecb_double_to_binary64 (double x)
1185 { 1423 {
1186 uint64_t r; 1424 uint64_t r;
1187 1425
1188 #if ECB_STDFP 1426 #if ECB_STDFP
… …
1217 1455
1218 return r; 1456 return r;
1219 } 1457 }
1220 1458
1221 /* converts an ieee double/binary64 to a double */ 1459 /* converts an ieee double/binary64 to a double */
1222 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1460 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1223 ecb_function_ double 1461 ecb_function_ ecb_const double
1224 ecb_binary64_to_double (uint64_t x) 1462 ecb_binary64_to_double (uint64_t x)
1225 { 1463 {
1226 double r; 1464 double r;
1227 1465
1228 #if ECB_STDFP 1466 #if ECB_STDFP
… …
1244 1482
1245 r = neg ? -r : r; 1483 r = neg ? -r : r;
1246 #endif 1484 #endif
1247 1485
1248 return r; 1486 return r;
1487 }
1488
1489 /* convert a float to ieee half/binary16 */
1490 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1491 ecb_function_ ecb_const uint16_t
1492 ecb_float_to_binary16 (float x)
1493 {
1494 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1495 }
1496
1497 /* convert an ieee half/binary16 to float */
1498 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1499 ecb_function_ ecb_const float
1500 ecb_binary16_to_float (uint16_t x)
1501 {
1502 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1249 } 1503 }
1250 1504
1251#endif 1505#endif
1252 1506
1253#endif 1507#endif
… …
1278#define inline_size ecb_inline 1532#define inline_size ecb_inline
1279 1533
1280#if EV_FEATURE_CODE 1534#if EV_FEATURE_CODE
1281# define inline_speed ecb_inline 1535# define inline_speed ecb_inline
1282#else 1536#else
1283# define inline_speed static noinline 1537# define inline_speed noinline static
1284#endif 1538#endif
1285 1539
1286#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287 1541
1288#if EV_MINPRI == EV_MAXPRI 1542#if EV_MINPRI == EV_MAXPRI
… …
1335#else 1589#else
1336 1590
1337#include <float.h> 1591#include <float.h>
1338 1592
1339/* a floor() replacement function, should be independent of ev_tstamp type */ 1593/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline
1340static ev_tstamp noinline 1595static ev_tstamp
1341ev_floor (ev_tstamp v) 1596ev_floor (ev_tstamp v)
1342{ 1597{
1343 /* the choice of shift factor is not terribly important */ 1598 /* the choice of shift factor is not terribly important */
1344#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1377 1632
1378#ifdef __linux 1633#ifdef __linux
1379# include <sys/utsname.h> 1634# include <sys/utsname.h>
1380#endif 1635#endif
1381 1636
1382static unsigned int noinline ecb_cold 1637noinline ecb_cold
1638static unsigned int
1383ev_linux_version (void) 1639ev_linux_version (void)
1384{ 1640{
1385#ifdef __linux 1641#ifdef __linux
1386 unsigned int v = 0; 1642 unsigned int v = 0;
1387 struct utsname buf; 1643 struct utsname buf;
… …
1416} 1672}
1417 1673
1418/*****************************************************************************/ 1674/*****************************************************************************/
1419 1675
1420#if EV_AVOID_STDIO 1676#if EV_AVOID_STDIO
1421static void noinline ecb_cold 1677noinline ecb_cold
1678static void
1422ev_printerr (const char *msg) 1679ev_printerr (const char *msg)
1423{ 1680{
1424 write (STDERR_FILENO, msg, strlen (msg)); 1681 write (STDERR_FILENO, msg, strlen (msg));
1425} 1682}
1426#endif 1683#endif
1427 1684
1428static void (*syserr_cb)(const char *msg) EV_THROW; 1685static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1429 1686
1430void ecb_cold 1687ecb_cold
1688void
1431ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1432{ 1690{
1433 syserr_cb = cb; 1691 syserr_cb = cb;
1434} 1692}
1435 1693
1436static void noinline ecb_cold 1694noinline ecb_cold
1695static void
1437ev_syserr (const char *msg) 1696ev_syserr (const char *msg)
1438{ 1697{
1439 if (!msg) 1698 if (!msg)
1440 msg = "(libev) system error"; 1699 msg = "(libev) system error";
1441 1700
… …
1454 abort (); 1713 abort ();
1455 } 1714 }
1456} 1715}
1457 1716
1458static void * 1717static void *
1459ev_realloc_emul (void *ptr, long size) EV_THROW 1718ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1460{ 1719{
1461 /* some systems, notably openbsd and darwin, fail to properly 1720 /* some systems, notably openbsd and darwin, fail to properly
1462 * implement realloc (x, 0) (as required by both ansi c-89 and 1721 * implement realloc (x, 0) (as required by both ansi c-89 and
1463 * the single unix specification, so work around them here. 1722 * the single unix specification, so work around them here.
1464 * recently, also (at least) fedora and debian started breaking it, 1723 * recently, also (at least) fedora and debian started breaking it,
… …
1470 1729
1471 free (ptr); 1730 free (ptr);
1472 return 0; 1731 return 0;
1473} 1732}
1474 1733
1475static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1734static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1476 1735
1477void ecb_cold 1736ecb_cold
1737void
1478ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1738ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1479{ 1739{
1480 alloc = cb; 1740 alloc = cb;
1481} 1741}
1482 1742
1483inline_speed void * 1743inline_speed void *
… …
1600 1860
1601/*****************************************************************************/ 1861/*****************************************************************************/
1602 1862
1603#ifndef EV_HAVE_EV_TIME 1863#ifndef EV_HAVE_EV_TIME
1604ev_tstamp 1864ev_tstamp
1605ev_time (void) EV_THROW 1865ev_time (void) EV_NOEXCEPT
1606{ 1866{
1607#if EV_USE_REALTIME 1867#if EV_USE_REALTIME
1608 if (expect_true (have_realtime)) 1868 if (expect_true (have_realtime))
1609 { 1869 {
1610 struct timespec ts; 1870 struct timespec ts;
… …
1634 return ev_time (); 1894 return ev_time ();
1635} 1895}
1636 1896
1637#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1638ev_tstamp 1898ev_tstamp
1639ev_now (EV_P) EV_THROW 1899ev_now (EV_P) EV_NOEXCEPT
1640{ 1900{
1641 return ev_rt_now; 1901 return ev_rt_now;
1642} 1902}
1643#endif 1903#endif
1644 1904
1645void 1905void
1646ev_sleep (ev_tstamp delay) EV_THROW 1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1647{ 1907{
1648 if (delay > 0.) 1908 if (delay > 0.)
1649 { 1909 {
1650#if EV_USE_NANOSLEEP 1910#if EV_USE_NANOSLEEP
1651 struct timespec ts; 1911 struct timespec ts;
1652 1912
1653 EV_TS_SET (ts, delay); 1913 EV_TS_SET (ts, delay);
1654 nanosleep (&ts, 0); 1914 nanosleep (&ts, 0);
1655#elif defined _WIN32 1915#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */
1656 Sleep ((unsigned long)(delay * 1e3)); 1918 Sleep ((unsigned long)(delay * 1e3));
1657#else 1919#else
1658 struct timeval tv; 1920 struct timeval tv;
1659 1921
1660 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1691 } 1953 }
1692 1954
1693 return ncur; 1955 return ncur;
1694} 1956}
1695 1957
1696static void * noinline ecb_cold 1958noinline ecb_cold
1959static void *
1697array_realloc (int elem, void *base, int *cur, int cnt) 1960array_realloc (int elem, void *base, int *cur, int cnt)
1698{ 1961{
1699 *cur = array_nextsize (elem, *cur, cnt); 1962 *cur = array_nextsize (elem, *cur, cnt);
1700 return ev_realloc (base, elem * *cur); 1963 return ev_realloc (base, elem * *cur);
1701} 1964}
… …
1704 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1967 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1705 1968
1706#define array_needsize(type,base,cur,cnt,init) \ 1969#define array_needsize(type,base,cur,cnt,init) \
1707 if (expect_false ((cnt) > (cur))) \ 1970 if (expect_false ((cnt) > (cur))) \
1708 { \ 1971 { \
1709 int ecb_unused ocur_ = (cur); \ 1972 ecb_unused int ocur_ = (cur); \
1710 (base) = (type *)array_realloc \ 1973 (base) = (type *)array_realloc \
1711 (sizeof (type), (base), &(cur), (cnt)); \ 1974 (sizeof (type), (base), &(cur), (cnt)); \
1712 init ((base) + (ocur_), (cur) - ocur_); \ 1975 init ((base) + (ocur_), (cur) - ocur_); \
1713 } 1976 }
1714 1977
… …
1726 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1727 1990
1728/*****************************************************************************/ 1991/*****************************************************************************/
1729 1992
1730/* dummy callback for pending events */ 1993/* dummy callback for pending events */
1731static void noinline 1994noinline
1995static void
1732pendingcb (EV_P_ ev_prepare *w, int revents) 1996pendingcb (EV_P_ ev_prepare *w, int revents)
1733{ 1997{
1734} 1998}
1735 1999
1736void noinline 2000noinline
2001void
1737ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1738{ 2003{
1739 W w_ = (W)w; 2004 W w_ = (W)w;
1740 int pri = ABSPRI (w_); 2005 int pri = ABSPRI (w_);
1741 2006
1742 if (expect_false (w_->pending)) 2007 if (expect_false (w_->pending))
… …
1803 if (expect_true (!anfd->reify)) 2068 if (expect_true (!anfd->reify))
1804 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
1805} 2070}
1806 2071
1807void 2072void
1808ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1809{ 2074{
1810 if (fd >= 0 && fd < anfdmax) 2075 if (fd >= 0 && fd < anfdmax)
1811 fd_event_nocheck (EV_A_ fd, revents); 2076 fd_event_nocheck (EV_A_ fd, revents);
1812} 2077}
1813 2078
… …
1871 2136
1872 fdchangecnt = 0; 2137 fdchangecnt = 0;
1873} 2138}
1874 2139
1875/* something about the given fd changed */ 2140/* something about the given fd changed */
1876inline_size void 2141inline_size
2142void
1877fd_change (EV_P_ int fd, int flags) 2143fd_change (EV_P_ int fd, int flags)
1878{ 2144{
1879 unsigned char reify = anfds [fd].reify; 2145 unsigned char reify = anfds [fd].reify;
1880 anfds [fd].reify |= flags; 2146 anfds [fd].reify |= flags;
1881 2147
… …
1886 fdchanges [fdchangecnt - 1] = fd; 2152 fdchanges [fdchangecnt - 1] = fd;
1887 } 2153 }
1888} 2154}
1889 2155
1890/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1891inline_speed void ecb_cold 2157inline_speed ecb_cold void
1892fd_kill (EV_P_ int fd) 2158fd_kill (EV_P_ int fd)
1893{ 2159{
1894 ev_io *w; 2160 ev_io *w;
1895 2161
1896 while ((w = (ev_io *)anfds [fd].head)) 2162 while ((w = (ev_io *)anfds [fd].head))
… …
1899 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2165 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1900 } 2166 }
1901} 2167}
1902 2168
1903/* check whether the given fd is actually valid, for error recovery */ 2169/* check whether the given fd is actually valid, for error recovery */
1904inline_size int ecb_cold 2170inline_size ecb_cold int
1905fd_valid (int fd) 2171fd_valid (int fd)
1906{ 2172{
1907#ifdef _WIN32 2173#ifdef _WIN32
1908 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2174 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909#else 2175#else
1910 return fcntl (fd, F_GETFD) != -1; 2176 return fcntl (fd, F_GETFD) != -1;
1911#endif 2177#endif
1912} 2178}
1913 2179
1914/* called on EBADF to verify fds */ 2180/* called on EBADF to verify fds */
1915static void noinline ecb_cold 2181noinline ecb_cold
2182static void
1916fd_ebadf (EV_P) 2183fd_ebadf (EV_P)
1917{ 2184{
1918 int fd; 2185 int fd;
1919 2186
1920 for (fd = 0; fd < anfdmax; ++fd) 2187 for (fd = 0; fd < anfdmax; ++fd)
… …
1922 if (!fd_valid (fd) && errno == EBADF) 2189 if (!fd_valid (fd) && errno == EBADF)
1923 fd_kill (EV_A_ fd); 2190 fd_kill (EV_A_ fd);
1924} 2191}
1925 2192
1926/* called on ENOMEM in select/poll to kill some fds and retry */ 2193/* called on ENOMEM in select/poll to kill some fds and retry */
1927static void noinline ecb_cold 2194noinline ecb_cold
2195static void
1928fd_enomem (EV_P) 2196fd_enomem (EV_P)
1929{ 2197{
1930 int fd; 2198 int fd;
1931 2199
1932 for (fd = anfdmax; fd--; ) 2200 for (fd = anfdmax; fd--; )
… …
1936 break; 2204 break;
1937 } 2205 }
1938} 2206}
1939 2207
1940/* usually called after fork if backend needs to re-arm all fds from scratch */ 2208/* usually called after fork if backend needs to re-arm all fds from scratch */
1941static void noinline 2209noinline
2210static void
1942fd_rearm_all (EV_P) 2211fd_rearm_all (EV_P)
1943{ 2212{
1944 int fd; 2213 int fd;
1945 2214
1946 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
2127 2396
2128/*****************************************************************************/ 2397/*****************************************************************************/
2129 2398
2130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131 2400
2132static void noinline ecb_cold 2401noinline ecb_cold
2402static void
2133evpipe_init (EV_P) 2403evpipe_init (EV_P)
2134{ 2404{
2135 if (!ev_is_active (&pipe_w)) 2405 if (!ev_is_active (&pipe_w))
2136 { 2406 {
2137 int fds [2]; 2407 int fds [2];
… …
2208#endif 2478#endif
2209 { 2479 {
2210#ifdef _WIN32 2480#ifdef _WIN32
2211 WSABUF buf; 2481 WSABUF buf;
2212 DWORD sent; 2482 DWORD sent;
2213 buf.buf = &buf; 2483 buf.buf = (char *)&buf;
2214 buf.len = 1; 2484 buf.len = 1;
2215 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2485 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2216#else 2486#else
2217 write (evpipe [1], &(evpipe [1]), 1); 2487 write (evpipe [1], &(evpipe [1]), 1);
2218#endif 2488#endif
… …
2290} 2560}
2291 2561
2292/*****************************************************************************/ 2562/*****************************************************************************/
2293 2563
2294void 2564void
2295ev_feed_signal (int signum) EV_THROW 2565ev_feed_signal (int signum) EV_NOEXCEPT
2296{ 2566{
2297#if EV_MULTIPLICITY 2567#if EV_MULTIPLICITY
2298 EV_P; 2568 EV_P;
2299 ECB_MEMORY_FENCE_ACQUIRE; 2569 ECB_MEMORY_FENCE_ACQUIRE;
2300 EV_A = signals [signum - 1].loop; 2570 EV_A = signals [signum - 1].loop;
… …
2315#endif 2585#endif
2316 2586
2317 ev_feed_signal (signum); 2587 ev_feed_signal (signum);
2318} 2588}
2319 2589
2320void noinline 2590noinline
2591void
2321ev_feed_signal_event (EV_P_ int signum) EV_THROW 2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2322{ 2593{
2323 WL w; 2594 WL w;
2324 2595
2325 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2596 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2326 return; 2597 return;
… …
2442#endif 2713#endif
2443#if EV_USE_SELECT 2714#if EV_USE_SELECT
2444# include "ev_select.c" 2715# include "ev_select.c"
2445#endif 2716#endif
2446 2717
2447int ecb_cold 2718ecb_cold int
2448ev_version_major (void) EV_THROW 2719ev_version_major (void) EV_NOEXCEPT
2449{ 2720{
2450 return EV_VERSION_MAJOR; 2721 return EV_VERSION_MAJOR;
2451} 2722}
2452 2723
2453int ecb_cold 2724ecb_cold int
2454ev_version_minor (void) EV_THROW 2725ev_version_minor (void) EV_NOEXCEPT
2455{ 2726{
2456 return EV_VERSION_MINOR; 2727 return EV_VERSION_MINOR;
2457} 2728}
2458 2729
2459/* return true if we are running with elevated privileges and should ignore env variables */ 2730/* return true if we are running with elevated privileges and should ignore env variables */
2460int inline_size ecb_cold 2731inline_size ecb_cold int
2461enable_secure (void) 2732enable_secure (void)
2462{ 2733{
2463#ifdef _WIN32 2734#ifdef _WIN32
2464 return 0; 2735 return 0;
2465#else 2736#else
2466 return getuid () != geteuid () 2737 return getuid () != geteuid ()
2467 || getgid () != getegid (); 2738 || getgid () != getegid ();
2468#endif 2739#endif
2469} 2740}
2470 2741
2471unsigned int ecb_cold 2742ecb_cold
2743unsigned int
2472ev_supported_backends (void) EV_THROW 2744ev_supported_backends (void) EV_NOEXCEPT
2473{ 2745{
2474 unsigned int flags = 0; 2746 unsigned int flags = 0;
2475 2747
2476 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2477 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2480 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2481 2753
2482 return flags; 2754 return flags;
2483} 2755}
2484 2756
2485unsigned int ecb_cold 2757ecb_cold
2758unsigned int
2486ev_recommended_backends (void) EV_THROW 2759ev_recommended_backends (void) EV_NOEXCEPT
2487{ 2760{
2488 unsigned int flags = ev_supported_backends (); 2761 unsigned int flags = ev_supported_backends ();
2489 2762
2490#ifndef __NetBSD__ 2763#ifndef __NetBSD__
2491 /* kqueue is borked on everything but netbsd apparently */ 2764 /* kqueue is borked on everything but netbsd apparently */
… …
2502#endif 2775#endif
2503 2776
2504 return flags; 2777 return flags;
2505} 2778}
2506 2779
2507unsigned int ecb_cold 2780ecb_cold
2781unsigned int
2508ev_embeddable_backends (void) EV_THROW 2782ev_embeddable_backends (void) EV_NOEXCEPT
2509{ 2783{
2510 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511 2785
2512 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2513 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2515 2789
2516 return flags; 2790 return flags;
2517} 2791}
2518 2792
2519unsigned int 2793unsigned int
2520ev_backend (EV_P) EV_THROW 2794ev_backend (EV_P) EV_NOEXCEPT
2521{ 2795{
2522 return backend; 2796 return backend;
2523} 2797}
2524 2798
2525#if EV_FEATURE_API 2799#if EV_FEATURE_API
2526unsigned int 2800unsigned int
2527ev_iteration (EV_P) EV_THROW 2801ev_iteration (EV_P) EV_NOEXCEPT
2528{ 2802{
2529 return loop_count; 2803 return loop_count;
2530} 2804}
2531 2805
2532unsigned int 2806unsigned int
2533ev_depth (EV_P) EV_THROW 2807ev_depth (EV_P) EV_NOEXCEPT
2534{ 2808{
2535 return loop_depth; 2809 return loop_depth;
2536} 2810}
2537 2811
2538void 2812void
2539ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2813ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2540{ 2814{
2541 io_blocktime = interval; 2815 io_blocktime = interval;
2542} 2816}
2543 2817
2544void 2818void
2545ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2819ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2546{ 2820{
2547 timeout_blocktime = interval; 2821 timeout_blocktime = interval;
2548} 2822}
2549 2823
2550void 2824void
2551ev_set_userdata (EV_P_ void *data) EV_THROW 2825ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2552{ 2826{
2553 userdata = data; 2827 userdata = data;
2554} 2828}
2555 2829
2556void * 2830void *
2557ev_userdata (EV_P) EV_THROW 2831ev_userdata (EV_P) EV_NOEXCEPT
2558{ 2832{
2559 return userdata; 2833 return userdata;
2560} 2834}
2561 2835
2562void 2836void
2563ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2837ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2564{ 2838{
2565 invoke_cb = invoke_pending_cb; 2839 invoke_cb = invoke_pending_cb;
2566} 2840}
2567 2841
2568void 2842void
2569ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2843ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2570{ 2844{
2571 release_cb = release; 2845 release_cb = release;
2572 acquire_cb = acquire; 2846 acquire_cb = acquire;
2573} 2847}
2574#endif 2848#endif
2575 2849
2576/* initialise a loop structure, must be zero-initialised */ 2850/* initialise a loop structure, must be zero-initialised */
2577static void noinline ecb_cold 2851noinline ecb_cold
2852static void
2578loop_init (EV_P_ unsigned int flags) EV_THROW 2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2579{ 2854{
2580 if (!backend) 2855 if (!backend)
2581 { 2856 {
2582 origflags = flags; 2857 origflags = flags;
2583 2858
… …
2669#endif 2944#endif
2670 } 2945 }
2671} 2946}
2672 2947
2673/* free up a loop structure */ 2948/* free up a loop structure */
2674void ecb_cold 2949ecb_cold
2950void
2675ev_loop_destroy (EV_P) 2951ev_loop_destroy (EV_P)
2676{ 2952{
2677 int i; 2953 int i;
2678 2954
2679#if EV_MULTIPLICITY 2955#if EV_MULTIPLICITY
… …
2800#if EV_USE_INOTIFY 3076#if EV_USE_INOTIFY
2801 infy_fork (EV_A); 3077 infy_fork (EV_A);
2802#endif 3078#endif
2803 3079
2804#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805 if (ev_is_active (&pipe_w)) 3081 if (ev_is_active (&pipe_w) && postfork != 2)
2806 { 3082 {
2807 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2808 3084
2809 ev_ref (EV_A); 3085 ev_ref (EV_A);
2810 ev_io_stop (EV_A_ &pipe_w); 3086 ev_io_stop (EV_A_ &pipe_w);
… …
2821 postfork = 0; 3097 postfork = 0;
2822} 3098}
2823 3099
2824#if EV_MULTIPLICITY 3100#if EV_MULTIPLICITY
2825 3101
3102ecb_cold
2826struct ev_loop * ecb_cold 3103struct ev_loop *
2827ev_loop_new (unsigned int flags) EV_THROW 3104ev_loop_new (unsigned int flags) EV_NOEXCEPT
2828{ 3105{
2829 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3106 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830 3107
2831 memset (EV_A, 0, sizeof (struct ev_loop)); 3108 memset (EV_A, 0, sizeof (struct ev_loop));
2832 loop_init (EV_A_ flags); 3109 loop_init (EV_A_ flags);
… …
2839} 3116}
2840 3117
2841#endif /* multiplicity */ 3118#endif /* multiplicity */
2842 3119
2843#if EV_VERIFY 3120#if EV_VERIFY
2844static void noinline ecb_cold 3121noinline ecb_cold
3122static void
2845verify_watcher (EV_P_ W w) 3123verify_watcher (EV_P_ W w)
2846{ 3124{
2847 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2848 3126
2849 if (w->pending) 3127 if (w->pending)
2850 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2851} 3129}
2852 3130
2853static void noinline ecb_cold 3131noinline ecb_cold
3132static void
2854verify_heap (EV_P_ ANHE *heap, int N) 3133verify_heap (EV_P_ ANHE *heap, int N)
2855{ 3134{
2856 int i; 3135 int i;
2857 3136
2858 for (i = HEAP0; i < N + HEAP0; ++i) 3137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2863 3142
2864 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865 } 3144 }
2866} 3145}
2867 3146
2868static void noinline ecb_cold 3147noinline ecb_cold
3148static void
2869array_verify (EV_P_ W *ws, int cnt) 3149array_verify (EV_P_ W *ws, int cnt)
2870{ 3150{
2871 while (cnt--) 3151 while (cnt--)
2872 { 3152 {
2873 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2876} 3156}
2877#endif 3157#endif
2878 3158
2879#if EV_FEATURE_API 3159#if EV_FEATURE_API
2880void ecb_cold 3160void ecb_cold
2881ev_verify (EV_P) EV_THROW 3161ev_verify (EV_P) EV_NOEXCEPT
2882{ 3162{
2883#if EV_VERIFY 3163#if EV_VERIFY
2884 int i; 3164 int i;
2885 WL w, w2; 3165 WL w, w2;
2886 3166
… …
2962#endif 3242#endif
2963} 3243}
2964#endif 3244#endif
2965 3245
2966#if EV_MULTIPLICITY 3246#if EV_MULTIPLICITY
3247ecb_cold
2967struct ev_loop * ecb_cold 3248struct ev_loop *
2968#else 3249#else
2969int 3250int
2970#endif 3251#endif
2971ev_default_loop (unsigned int flags) EV_THROW 3252ev_default_loop (unsigned int flags) EV_NOEXCEPT
2972{ 3253{
2973 if (!ev_default_loop_ptr) 3254 if (!ev_default_loop_ptr)
2974 { 3255 {
2975#if EV_MULTIPLICITY 3256#if EV_MULTIPLICITY
2976 EV_P = ev_default_loop_ptr = &default_loop_struct; 3257 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2995 3276
2996 return ev_default_loop_ptr; 3277 return ev_default_loop_ptr;
2997} 3278}
2998 3279
2999void 3280void
3000ev_loop_fork (EV_P) EV_THROW 3281ev_loop_fork (EV_P) EV_NOEXCEPT
3001{ 3282{
3002 postfork = 1; 3283 postfork = 1;
3003} 3284}
3004 3285
3005/*****************************************************************************/ 3286/*****************************************************************************/
… …
3009{ 3290{
3010 EV_CB_INVOKE ((W)w, revents); 3291 EV_CB_INVOKE ((W)w, revents);
3011} 3292}
3012 3293
3013unsigned int 3294unsigned int
3014ev_pending_count (EV_P) EV_THROW 3295ev_pending_count (EV_P) EV_NOEXCEPT
3015{ 3296{
3016 int pri; 3297 int pri;
3017 unsigned int count = 0; 3298 unsigned int count = 0;
3018 3299
3019 for (pri = NUMPRI; pri--; ) 3300 for (pri = NUMPRI; pri--; )
3020 count += pendingcnt [pri]; 3301 count += pendingcnt [pri];
3021 3302
3022 return count; 3303 return count;
3023} 3304}
3024 3305
3025void noinline 3306noinline
3307void
3026ev_invoke_pending (EV_P) 3308ev_invoke_pending (EV_P)
3027{ 3309{
3028 pendingpri = NUMPRI; 3310 pendingpri = NUMPRI;
3029 3311
3030 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3312 do
3031 { 3313 {
3032 --pendingpri; 3314 --pendingpri;
3033 3315
3316 /* pendingpri possibly gets modified in the inner loop */
3034 while (pendingcnt [pendingpri]) 3317 while (pendingcnt [pendingpri])
3035 { 3318 {
3036 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3319 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3037 3320
3038 p->w->pending = 0; 3321 p->w->pending = 0;
3039 EV_CB_INVOKE (p->w, p->events); 3322 EV_CB_INVOKE (p->w, p->events);
3040 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
3041 } 3324 }
3042 } 3325 }
3326 while (pendingpri);
3043} 3327}
3044 3328
3045#if EV_IDLE_ENABLE 3329#if EV_IDLE_ENABLE
3046/* make idle watchers pending. this handles the "call-idle */ 3330/* make idle watchers pending. this handles the "call-idle */
3047/* only when higher priorities are idle" logic */ 3331/* only when higher priorities are idle" logic */
… …
3105 } 3389 }
3106} 3390}
3107 3391
3108#if EV_PERIODIC_ENABLE 3392#if EV_PERIODIC_ENABLE
3109 3393
3110static void noinline 3394noinline
3395static void
3111periodic_recalc (EV_P_ ev_periodic *w) 3396periodic_recalc (EV_P_ ev_periodic *w)
3112{ 3397{
3113 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3114 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3115 3400
… …
3173 } 3458 }
3174} 3459}
3175 3460
3176/* simply recalculate all periodics */ 3461/* simply recalculate all periodics */
3177/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3462/* TODO: maybe ensure that at least one event happens when jumping forward? */
3178static void noinline ecb_cold 3463noinline ecb_cold
3464static void
3179periodics_reschedule (EV_P) 3465periodics_reschedule (EV_P)
3180{ 3466{
3181 int i; 3467 int i;
3182 3468
3183 /* adjust periodics after time jump */ 3469 /* adjust periodics after time jump */
… …
3196 reheap (periodics, periodiccnt); 3482 reheap (periodics, periodiccnt);
3197} 3483}
3198#endif 3484#endif
3199 3485
3200/* adjust all timers by a given offset */ 3486/* adjust all timers by a given offset */
3201static void noinline ecb_cold 3487noinline ecb_cold
3488static void
3202timers_reschedule (EV_P_ ev_tstamp adjust) 3489timers_reschedule (EV_P_ ev_tstamp adjust)
3203{ 3490{
3204 int i; 3491 int i;
3205 3492
3206 for (i = 0; i < timercnt; ++i) 3493 for (i = 0; i < timercnt; ++i)
… …
3453 3740
3454 return activecnt; 3741 return activecnt;
3455} 3742}
3456 3743
3457void 3744void
3458ev_break (EV_P_ int how) EV_THROW 3745ev_break (EV_P_ int how) EV_NOEXCEPT
3459{ 3746{
3460 loop_done = how; 3747 loop_done = how;
3461} 3748}
3462 3749
3463void 3750void
3464ev_ref (EV_P) EV_THROW 3751ev_ref (EV_P) EV_NOEXCEPT
3465{ 3752{
3466 ++activecnt; 3753 ++activecnt;
3467} 3754}
3468 3755
3469void 3756void
3470ev_unref (EV_P) EV_THROW 3757ev_unref (EV_P) EV_NOEXCEPT
3471{ 3758{
3472 --activecnt; 3759 --activecnt;
3473} 3760}
3474 3761
3475void 3762void
3476ev_now_update (EV_P) EV_THROW 3763ev_now_update (EV_P) EV_NOEXCEPT
3477{ 3764{
3478 time_update (EV_A_ 1e100); 3765 time_update (EV_A_ 1e100);
3479} 3766}
3480 3767
3481void 3768void
3482ev_suspend (EV_P) EV_THROW 3769ev_suspend (EV_P) EV_NOEXCEPT
3483{ 3770{
3484 ev_now_update (EV_A); 3771 ev_now_update (EV_A);
3485} 3772}
3486 3773
3487void 3774void
3488ev_resume (EV_P) EV_THROW 3775ev_resume (EV_P) EV_NOEXCEPT
3489{ 3776{
3490 ev_tstamp mn_prev = mn_now; 3777 ev_tstamp mn_prev = mn_now;
3491 3778
3492 ev_now_update (EV_A); 3779 ev_now_update (EV_A);
3493 timers_reschedule (EV_A_ mn_now - mn_prev); 3780 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3532 w->pending = 0; 3819 w->pending = 0;
3533 } 3820 }
3534} 3821}
3535 3822
3536int 3823int
3537ev_clear_pending (EV_P_ void *w) EV_THROW 3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3538{ 3825{
3539 W w_ = (W)w; 3826 W w_ = (W)w;
3540 int pending = w_->pending; 3827 int pending = w_->pending;
3541 3828
3542 if (expect_true (pending)) 3829 if (expect_true (pending))
… …
3574 w->active = 0; 3861 w->active = 0;
3575} 3862}
3576 3863
3577/*****************************************************************************/ 3864/*****************************************************************************/
3578 3865
3579void noinline 3866noinline
3867void
3580ev_io_start (EV_P_ ev_io *w) EV_THROW 3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3581{ 3869{
3582 int fd = w->fd; 3870 int fd = w->fd;
3583 3871
3584 if (expect_false (ev_is_active (w))) 3872 if (expect_false (ev_is_active (w)))
3585 return; 3873 return;
… …
3600 w->events &= ~EV__IOFDSET; 3888 w->events &= ~EV__IOFDSET;
3601 3889
3602 EV_FREQUENT_CHECK; 3890 EV_FREQUENT_CHECK;
3603} 3891}
3604 3892
3605void noinline 3893noinline
3894void
3606ev_io_stop (EV_P_ ev_io *w) EV_THROW 3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3607{ 3896{
3608 clear_pending (EV_A_ (W)w); 3897 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 3898 if (expect_false (!ev_is_active (w)))
3610 return; 3899 return;
3611 3900
… …
3619 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620 3909
3621 EV_FREQUENT_CHECK; 3910 EV_FREQUENT_CHECK;
3622} 3911}
3623 3912
3624void noinline 3913noinline
3914void
3625ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 3916{
3627 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3628 return; 3918 return;
3629 3919
3630 ev_at (w) += mn_now; 3920 ev_at (w) += mn_now;
… …
3643 EV_FREQUENT_CHECK; 3933 EV_FREQUENT_CHECK;
3644 3934
3645 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3646} 3936}
3647 3937
3648void noinline 3938noinline
3939void
3649ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3650{ 3941{
3651 clear_pending (EV_A_ (W)w); 3942 clear_pending (EV_A_ (W)w);
3652 if (expect_false (!ev_is_active (w))) 3943 if (expect_false (!ev_is_active (w)))
3653 return; 3944 return;
3654 3945
… …
3673 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3674 3965
3675 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3676} 3967}
3677 3968
3678void noinline 3969noinline
3970void
3679ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3680{ 3972{
3681 EV_FREQUENT_CHECK; 3973 EV_FREQUENT_CHECK;
3682 3974
3683 clear_pending (EV_A_ (W)w); 3975 clear_pending (EV_A_ (W)w);
3684 3976
… …
3701 3993
3702 EV_FREQUENT_CHECK; 3994 EV_FREQUENT_CHECK;
3703} 3995}
3704 3996
3705ev_tstamp 3997ev_tstamp
3706ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3707{ 3999{
3708 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3709} 4001}
3710 4002
3711#if EV_PERIODIC_ENABLE 4003#if EV_PERIODIC_ENABLE
3712void noinline 4004noinline
4005void
3713ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3714{ 4007{
3715 if (expect_false (ev_is_active (w))) 4008 if (expect_false (ev_is_active (w)))
3716 return; 4009 return;
3717 4010
3718 if (w->reschedule_cb) 4011 if (w->reschedule_cb)
… …
3737 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3738 4031
3739 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3740} 4033}
3741 4034
3742void noinline 4035noinline
4036void
3743ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3744{ 4038{
3745 clear_pending (EV_A_ (W)w); 4039 clear_pending (EV_A_ (W)w);
3746 if (expect_false (!ev_is_active (w))) 4040 if (expect_false (!ev_is_active (w)))
3747 return; 4041 return;
3748 4042
… …
3765 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3766 4060
3767 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
3768} 4062}
3769 4063
3770void noinline 4064noinline
4065void
3771ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3772{ 4067{
3773 /* TODO: use adjustheap and recalculation */ 4068 /* TODO: use adjustheap and recalculation */
3774 ev_periodic_stop (EV_A_ w); 4069 ev_periodic_stop (EV_A_ w);
3775 ev_periodic_start (EV_A_ w); 4070 ev_periodic_start (EV_A_ w);
3776} 4071}
… …
3780# define SA_RESTART 0 4075# define SA_RESTART 0
3781#endif 4076#endif
3782 4077
3783#if EV_SIGNAL_ENABLE 4078#if EV_SIGNAL_ENABLE
3784 4079
3785void noinline 4080noinline
4081void
3786ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3787{ 4083{
3788 if (expect_false (ev_is_active (w))) 4084 if (expect_false (ev_is_active (w)))
3789 return; 4085 return;
3790 4086
3791 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3862 } 4158 }
3863 4159
3864 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
3865} 4161}
3866 4162
3867void noinline 4163noinline
4164void
3868ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3869{ 4166{
3870 clear_pending (EV_A_ (W)w); 4167 clear_pending (EV_A_ (W)w);
3871 if (expect_false (!ev_is_active (w))) 4168 if (expect_false (!ev_is_active (w)))
3872 return; 4169 return;
3873 4170
… …
3904#endif 4201#endif
3905 4202
3906#if EV_CHILD_ENABLE 4203#if EV_CHILD_ENABLE
3907 4204
3908void 4205void
3909ev_child_start (EV_P_ ev_child *w) EV_THROW 4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3910{ 4207{
3911#if EV_MULTIPLICITY 4208#if EV_MULTIPLICITY
3912 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3913#endif 4210#endif
3914 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
… …
3921 4218
3922 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3923} 4220}
3924 4221
3925void 4222void
3926ev_child_stop (EV_P_ ev_child *w) EV_THROW 4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3927{ 4224{
3928 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3929 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3930 return; 4227 return;
3931 4228
… …
3948 4245
3949#define DEF_STAT_INTERVAL 5.0074891 4246#define DEF_STAT_INTERVAL 5.0074891
3950#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951#define MIN_STAT_INTERVAL 0.1074891 4248#define MIN_STAT_INTERVAL 0.1074891
3952 4249
3953static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954 4251
3955#if EV_USE_INOTIFY 4252#if EV_USE_INOTIFY
3956 4253
3957/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3958# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959 4256
3960static void noinline 4257noinline
4258static void
3961infy_add (EV_P_ ev_stat *w) 4259infy_add (EV_P_ ev_stat *w)
3962{ 4260{
3963 w->wd = inotify_add_watch (fs_fd, w->path, 4261 w->wd = inotify_add_watch (fs_fd, w->path,
3964 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4263 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4029 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4327 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030 ev_timer_again (EV_A_ &w->timer); 4328 ev_timer_again (EV_A_ &w->timer);
4031 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4329 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032} 4330}
4033 4331
4034static void noinline 4332noinline
4333static void
4035infy_del (EV_P_ ev_stat *w) 4334infy_del (EV_P_ ev_stat *w)
4036{ 4335{
4037 int slot; 4336 int slot;
4038 int wd = w->wd; 4337 int wd = w->wd;
4039 4338
… …
4046 4345
4047 /* remove this watcher, if others are watching it, they will rearm */ 4346 /* remove this watcher, if others are watching it, they will rearm */
4048 inotify_rm_watch (fs_fd, wd); 4347 inotify_rm_watch (fs_fd, wd);
4049} 4348}
4050 4349
4051static void noinline 4350noinline
4351static void
4052infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053{ 4353{
4054 if (slot < 0) 4354 if (slot < 0)
4055 /* overflow, need to check for all hash slots */ 4355 /* overflow, need to check for all hash slots */
4056 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4356 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4092 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4392 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093 ofs += sizeof (struct inotify_event) + ev->len; 4393 ofs += sizeof (struct inotify_event) + ev->len;
4094 } 4394 }
4095} 4395}
4096 4396
4097inline_size void ecb_cold 4397inline_size ecb_cold
4398void
4098ev_check_2625 (EV_P) 4399ev_check_2625 (EV_P)
4099{ 4400{
4100 /* kernels < 2.6.25 are borked 4401 /* kernels < 2.6.25 are borked
4101 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4402 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4102 */ 4403 */
… …
4192#else 4493#else
4193# define EV_LSTAT(p,b) lstat (p, b) 4494# define EV_LSTAT(p,b) lstat (p, b)
4194#endif 4495#endif
4195 4496
4196void 4497void
4197ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4498ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4198{ 4499{
4199 if (lstat (w->path, &w->attr) < 0) 4500 if (lstat (w->path, &w->attr) < 0)
4200 w->attr.st_nlink = 0; 4501 w->attr.st_nlink = 0;
4201 else if (!w->attr.st_nlink) 4502 else if (!w->attr.st_nlink)
4202 w->attr.st_nlink = 1; 4503 w->attr.st_nlink = 1;
4203} 4504}
4204 4505
4205static void noinline 4506noinline
4507static void
4206stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4508stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207{ 4509{
4208 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209 4511
4210 ev_statdata prev = w->attr; 4512 ev_statdata prev = w->attr;
… …
4241 ev_feed_event (EV_A_ w, EV_STAT); 4543 ev_feed_event (EV_A_ w, EV_STAT);
4242 } 4544 }
4243} 4545}
4244 4546
4245void 4547void
4246ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4549{
4248 if (expect_false (ev_is_active (w))) 4550 if (expect_false (ev_is_active (w)))
4249 return; 4551 return;
4250 4552
4251 ev_stat_stat (EV_A_ w); 4553 ev_stat_stat (EV_A_ w);
… …
4272 4574
4273 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4274} 4576}
4275 4577
4276void 4578void
4277ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4278{ 4580{
4279 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4280 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4281 return; 4583 return;
4282 4584
… …
4298} 4600}
4299#endif 4601#endif
4300 4602
4301#if EV_IDLE_ENABLE 4603#if EV_IDLE_ENABLE
4302void 4604void
4303ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4304{ 4606{
4305 if (expect_false (ev_is_active (w))) 4607 if (expect_false (ev_is_active (w)))
4306 return; 4608 return;
4307 4609
4308 pri_adjust (EV_A_ (W)w); 4610 pri_adjust (EV_A_ (W)w);
… …
4321 4623
4322 EV_FREQUENT_CHECK; 4624 EV_FREQUENT_CHECK;
4323} 4625}
4324 4626
4325void 4627void
4326ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4327{ 4629{
4328 clear_pending (EV_A_ (W)w); 4630 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4631 if (expect_false (!ev_is_active (w)))
4330 return; 4632 return;
4331 4633
… …
4345} 4647}
4346#endif 4648#endif
4347 4649
4348#if EV_PREPARE_ENABLE 4650#if EV_PREPARE_ENABLE
4349void 4651void
4350ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4351{ 4653{
4352 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4353 return; 4655 return;
4354 4656
4355 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4360 4662
4361 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
4362} 4664}
4363 4665
4364void 4666void
4365ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4366{ 4668{
4367 clear_pending (EV_A_ (W)w); 4669 clear_pending (EV_A_ (W)w);
4368 if (expect_false (!ev_is_active (w))) 4670 if (expect_false (!ev_is_active (w)))
4369 return; 4671 return;
4370 4672
… …
4383} 4685}
4384#endif 4686#endif
4385 4687
4386#if EV_CHECK_ENABLE 4688#if EV_CHECK_ENABLE
4387void 4689void
4388ev_check_start (EV_P_ ev_check *w) EV_THROW 4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4389{ 4691{
4390 if (expect_false (ev_is_active (w))) 4692 if (expect_false (ev_is_active (w)))
4391 return; 4693 return;
4392 4694
4393 EV_FREQUENT_CHECK; 4695 EV_FREQUENT_CHECK;
… …
4398 4700
4399 EV_FREQUENT_CHECK; 4701 EV_FREQUENT_CHECK;
4400} 4702}
4401 4703
4402void 4704void
4403ev_check_stop (EV_P_ ev_check *w) EV_THROW 4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4404{ 4706{
4405 clear_pending (EV_A_ (W)w); 4707 clear_pending (EV_A_ (W)w);
4406 if (expect_false (!ev_is_active (w))) 4708 if (expect_false (!ev_is_active (w)))
4407 return; 4709 return;
4408 4710
… …
4420 EV_FREQUENT_CHECK; 4722 EV_FREQUENT_CHECK;
4421} 4723}
4422#endif 4724#endif
4423 4725
4424#if EV_EMBED_ENABLE 4726#if EV_EMBED_ENABLE
4425void noinline 4727noinline
4728void
4426ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4427{ 4730{
4428 ev_run (w->other, EVRUN_NOWAIT); 4731 ev_run (w->other, EVRUN_NOWAIT);
4429} 4732}
4430 4733
4431static void 4734static void
… …
4479 ev_idle_stop (EV_A_ idle); 4782 ev_idle_stop (EV_A_ idle);
4480} 4783}
4481#endif 4784#endif
4482 4785
4483void 4786void
4484ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4485{ 4788{
4486 if (expect_false (ev_is_active (w))) 4789 if (expect_false (ev_is_active (w)))
4487 return; 4790 return;
4488 4791
4489 { 4792 {
… …
4510 4813
4511 EV_FREQUENT_CHECK; 4814 EV_FREQUENT_CHECK;
4512} 4815}
4513 4816
4514void 4817void
4515ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4516{ 4819{
4517 clear_pending (EV_A_ (W)w); 4820 clear_pending (EV_A_ (W)w);
4518 if (expect_false (!ev_is_active (w))) 4821 if (expect_false (!ev_is_active (w)))
4519 return; 4822 return;
4520 4823
… …
4530} 4833}
4531#endif 4834#endif
4532 4835
4533#if EV_FORK_ENABLE 4836#if EV_FORK_ENABLE
4534void 4837void
4535ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4536{ 4839{
4537 if (expect_false (ev_is_active (w))) 4840 if (expect_false (ev_is_active (w)))
4538 return; 4841 return;
4539 4842
4540 EV_FREQUENT_CHECK; 4843 EV_FREQUENT_CHECK;
… …
4545 4848
4546 EV_FREQUENT_CHECK; 4849 EV_FREQUENT_CHECK;
4547} 4850}
4548 4851
4549void 4852void
4550ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4551{ 4854{
4552 clear_pending (EV_A_ (W)w); 4855 clear_pending (EV_A_ (W)w);
4553 if (expect_false (!ev_is_active (w))) 4856 if (expect_false (!ev_is_active (w)))
4554 return; 4857 return;
4555 4858
… …
4568} 4871}
4569#endif 4872#endif
4570 4873
4571#if EV_CLEANUP_ENABLE 4874#if EV_CLEANUP_ENABLE
4572void 4875void
4573ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4574{ 4877{
4575 if (expect_false (ev_is_active (w))) 4878 if (expect_false (ev_is_active (w)))
4576 return; 4879 return;
4577 4880
4578 EV_FREQUENT_CHECK; 4881 EV_FREQUENT_CHECK;
… …
4585 ev_unref (EV_A); 4888 ev_unref (EV_A);
4586 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4587} 4890}
4588 4891
4589void 4892void
4590ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4591{ 4894{
4592 clear_pending (EV_A_ (W)w); 4895 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 4896 if (expect_false (!ev_is_active (w)))
4594 return; 4897 return;
4595 4898
… …
4609} 4912}
4610#endif 4913#endif
4611 4914
4612#if EV_ASYNC_ENABLE 4915#if EV_ASYNC_ENABLE
4613void 4916void
4614ev_async_start (EV_P_ ev_async *w) EV_THROW 4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4615{ 4918{
4616 if (expect_false (ev_is_active (w))) 4919 if (expect_false (ev_is_active (w)))
4617 return; 4920 return;
4618 4921
4619 w->sent = 0; 4922 w->sent = 0;
… …
4628 4931
4629 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4630} 4933}
4631 4934
4632void 4935void
4633ev_async_stop (EV_P_ ev_async *w) EV_THROW 4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4634{ 4937{
4635 clear_pending (EV_A_ (W)w); 4938 clear_pending (EV_A_ (W)w);
4636 if (expect_false (!ev_is_active (w))) 4939 if (expect_false (!ev_is_active (w)))
4637 return; 4940 return;
4638 4941
… …
4649 4952
4650 EV_FREQUENT_CHECK; 4953 EV_FREQUENT_CHECK;
4651} 4954}
4652 4955
4653void 4956void
4654ev_async_send (EV_P_ ev_async *w) EV_THROW 4957ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 4958{
4656 w->sent = 1; 4959 w->sent = 1;
4657 evpipe_write (EV_A_ &async_pending); 4960 evpipe_write (EV_A_ &async_pending);
4658} 4961}
4659#endif 4962#endif
… …
4696 4999
4697 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5000 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4698} 5001}
4699 5002
4700void 5003void
4701ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5004ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4702{ 5005{
4703 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5006 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4704
4705 if (expect_false (!once))
4706 {
4707 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4708 return;
4709 }
4710 5007
4711 once->cb = cb; 5008 once->cb = cb;
4712 once->arg = arg; 5009 once->arg = arg;
4713 5010
4714 ev_init (&once->io, once_cb_io); 5011 ev_init (&once->io, once_cb_io);
… …
4727} 5024}
4728 5025
4729/*****************************************************************************/ 5026/*****************************************************************************/
4730 5027
4731#if EV_WALK_ENABLE 5028#if EV_WALK_ENABLE
4732void ecb_cold 5029ecb_cold
5030void
4733ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5031ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4734{ 5032{
4735 int i, j; 5033 int i, j;
4736 ev_watcher_list *wl, *wn; 5034 ev_watcher_list *wl, *wn;
4737 5035
4738 if (types & (EV_IO | EV_EMBED)) 5036 if (types & (EV_IO | EV_EMBED))

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines