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Comparing libev/ev.c (file contents):
Revision 1.462 by root, Sun Jan 5 02:59:36 2014 UTC vs.
Revision 1.487 by root, Mon Oct 29 00:00:21 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 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
615#if ECB_CPP
616 #define ECB_C 0
617 #define ECB_STDC_VERSION 0
618#else
619 #define ECB_C 1
620 #define ECB_STDC_VERSION __STDC_VERSION__
621#endif
622
623#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
624#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
580 625
581#if ECB_CPP 626#if ECB_CPP
582 #define ECB_EXTERN_C extern "C" 627 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 628 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END } 629 #define ECB_EXTERN_C_END }
… …
597 #define ECB_NO_SMP 1 642 #define ECB_NO_SMP 1
598#endif 643#endif
599 644
600#if ECB_NO_SMP 645#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0) 646 #define ECB_MEMORY_FENCE do { } while (0)
647#endif
648
649/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
650#if __xlC__ && ECB_CPP
651 #include <builtins.h>
652#endif
653
654#if 1400 <= _MSC_VER
655 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
602#endif 656#endif
603 657
604#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 659 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
606 #if __i386 || __i386__ 660 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 662 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 663 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 664 #elif ECB_GCC_AMD64
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670 #elif defined __ARM_ARCH_2__ \
671 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
673 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
674 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
675 || defined __ARM_ARCH_5TEJ__
676 /* 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__ \ 677 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 678 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
679 || defined __ARM_ARCH_6T2__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 680 #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__ \ 681 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 682 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
684 #elif __aarch64__
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622 #elif (__sparc || __sparc__) && !__sparcv8 686 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 688 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 689 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__ 690 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
648 712
649#ifndef ECB_MEMORY_FENCE 713#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7) 714 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */ 715 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 716 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
717 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
718 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
653 719
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 720 #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. 721 /* see comment below (stdatomic.h) about the C11 memory model. */
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 722 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */ 723 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
724 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
662 725
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 726 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize () 727 #define ECB_MEMORY_FENCE __sync_synchronize ()
665 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 728 #elif _MSC_VER >= 1500 /* VC++ 2008 */
666 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 729 /* 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. */ 758 /* 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 */ 759 /* 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 */ 760 /* for most usages, or gcc and clang have a bug */
698 /* I *currently* lean towards the latter, and inefficiently implement */ 761 /* I *currently* lean towards the latter, and inefficiently implement */
699 /* all three of ecb's fences as a seq_cst fence */ 762 /* all three of ecb's fences as a seq_cst fence */
763 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
764 /* for all __atomic_thread_fence's except seq_cst */
700 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 765 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
701 #endif 766 #endif
702#endif 767#endif
703 768
704#ifndef ECB_MEMORY_FENCE 769#ifndef ECB_MEMORY_FENCE
… …
727 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 792 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728#endif 793#endif
729 794
730/*****************************************************************************/ 795/*****************************************************************************/
731 796
732#if __cplusplus 797#if ECB_CPP
733 #define ecb_inline static inline 798 #define ecb_inline static inline
734#elif ECB_GCC_VERSION(2,5) 799#elif ECB_GCC_VERSION(2,5)
735 #define ecb_inline static __inline__ 800 #define ecb_inline static __inline__
736#elif ECB_C99 801#elif ECB_C99
737 #define ecb_inline static inline 802 #define ecb_inline static inline
… …
751 816
752#define ECB_CONCAT_(a, b) a ## b 817#define ECB_CONCAT_(a, b) a ## b
753#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 818#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754#define ECB_STRINGIFY_(a) # a 819#define ECB_STRINGIFY_(a) # a
755#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 820#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
821#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
756 822
757#define ecb_function_ ecb_inline 823#define ecb_function_ ecb_inline
758 824
759#if ECB_GCC_VERSION(3,1) 825#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760 #define ecb_attribute(attrlist) __attribute__(attrlist) 826 #define ecb_attribute(attrlist) __attribute__ (attrlist)
827#else
828 #define ecb_attribute(attrlist)
829#endif
830
831#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
761 #define ecb_is_constant(expr) __builtin_constant_p (expr) 832 #define ecb_is_constant(expr) __builtin_constant_p (expr)
833#else
834 /* possible C11 impl for integral types
835 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
836 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
837
838 #define ecb_is_constant(expr) 0
839#endif
840
841#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
762 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 842 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
843#else
844 #define ecb_expect(expr,value) (expr)
845#endif
846
847#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
763 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 848 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764#else 849#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) 850 #define ecb_prefetch(addr,rw,locality)
769#endif 851#endif
770 852
771/* no emulation for ecb_decltype */ 853/* no emulation for ecb_decltype */
772#if ECB_GCC_VERSION(4,5) 854#if ECB_CPP11
855 // older implementations might have problems with decltype(x)::type, work around it
856 template<class T> struct ecb_decltype_t { typedef T type; };
773 #define ecb_decltype(x) __decltype(x) 857 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774#elif ECB_GCC_VERSION(3,0) 858#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775 #define ecb_decltype(x) __typeof(x) 859 #define ecb_decltype(x) __typeof__ (x)
776#endif 860#endif
777 861
862#if _MSC_VER >= 1300
863 #define ecb_deprecated __declspec (deprecated)
864#else
865 #define ecb_deprecated ecb_attribute ((__deprecated__))
866#endif
867
868#if _MSC_VER >= 1500
869 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
870#elif ECB_GCC_VERSION(4,5)
871 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
872#else
873 #define ecb_deprecated_message(msg) ecb_deprecated
874#endif
875
876#if _MSC_VER >= 1400
877 #define ecb_noinline __declspec (noinline)
878#else
778#define ecb_noinline ecb_attribute ((__noinline__)) 879 #define ecb_noinline ecb_attribute ((__noinline__))
880#endif
881
779#define ecb_unused ecb_attribute ((__unused__)) 882#define ecb_unused ecb_attribute ((__unused__))
780#define ecb_const ecb_attribute ((__const__)) 883#define ecb_const ecb_attribute ((__const__))
781#define ecb_pure ecb_attribute ((__pure__)) 884#define ecb_pure ecb_attribute ((__pure__))
782 885
783#if ECB_C11 886#if ECB_C11 || __IBMC_NORETURN
887 /* 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 888 #define ecb_noreturn _Noreturn
889#elif ECB_CPP11
890 #define ecb_noreturn [[noreturn]]
891#elif _MSC_VER >= 1200
892 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
893 #define ecb_noreturn __declspec (noreturn)
785#else 894#else
786 #define ecb_noreturn ecb_attribute ((__noreturn__)) 895 #define ecb_noreturn ecb_attribute ((__noreturn__))
787#endif 896#endif
788 897
789#if ECB_GCC_VERSION(4,3) 898#if ECB_GCC_VERSION(4,3)
… …
804/* for compatibility to the rest of the world */ 913/* for compatibility to the rest of the world */
805#define ecb_likely(expr) ecb_expect_true (expr) 914#define ecb_likely(expr) ecb_expect_true (expr)
806#define ecb_unlikely(expr) ecb_expect_false (expr) 915#define ecb_unlikely(expr) ecb_expect_false (expr)
807 916
808/* count trailing zero bits and count # of one bits */ 917/* count trailing zero bits and count # of one bits */
809#if ECB_GCC_VERSION(3,4) 918#if ECB_GCC_VERSION(3,4) \
919 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
920 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
921 && ECB_CLANG_BUILTIN(__builtin_popcount))
810 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 922 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
811 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 923 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 924 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813 #define ecb_ctz32(x) __builtin_ctz (x) 925 #define ecb_ctz32(x) __builtin_ctz (x)
814 #define ecb_ctz64(x) __builtin_ctzll (x) 926 #define ecb_ctz64(x) __builtin_ctzll (x)
815 #define ecb_popcount32(x) __builtin_popcount (x) 927 #define ecb_popcount32(x) __builtin_popcount (x)
816 /* no popcountll */ 928 /* no popcountll */
817#else 929#else
818 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 930 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819 ecb_function_ int 931 ecb_function_ ecb_const int
820 ecb_ctz32 (uint32_t x) 932 ecb_ctz32 (uint32_t x)
821 { 933 {
934#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
935 unsigned long r;
936 _BitScanForward (&r, x);
937 return (int)r;
938#else
822 int r = 0; 939 int r = 0;
823 940
824 x &= ~x + 1; /* this isolates the lowest bit */ 941 x &= ~x + 1; /* this isolates the lowest bit */
825 942
826#if ECB_branchless_on_i386 943#if ECB_branchless_on_i386
… …
836 if (x & 0xff00ff00) r += 8; 953 if (x & 0xff00ff00) r += 8;
837 if (x & 0xffff0000) r += 16; 954 if (x & 0xffff0000) r += 16;
838#endif 955#endif
839 956
840 return r; 957 return r;
958#endif
841 } 959 }
842 960
843 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844 ecb_function_ int 962 ecb_function_ ecb_const int
845 ecb_ctz64 (uint64_t x) 963 ecb_ctz64 (uint64_t x)
846 { 964 {
965#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
966 unsigned long r;
967 _BitScanForward64 (&r, x);
968 return (int)r;
969#else
847 int shift = x & 0xffffffffU ? 0 : 32; 970 int shift = x & 0xffffffff ? 0 : 32;
848 return ecb_ctz32 (x >> shift) + shift; 971 return ecb_ctz32 (x >> shift) + shift;
972#endif
849 } 973 }
850 974
851 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852 ecb_function_ int 976 ecb_function_ ecb_const int
853 ecb_popcount32 (uint32_t x) 977 ecb_popcount32 (uint32_t x)
854 { 978 {
855 x -= (x >> 1) & 0x55555555; 979 x -= (x >> 1) & 0x55555555;
856 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 980 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857 x = ((x >> 4) + x) & 0x0f0f0f0f; 981 x = ((x >> 4) + x) & 0x0f0f0f0f;
858 x *= 0x01010101; 982 x *= 0x01010101;
859 983
860 return x >> 24; 984 return x >> 24;
861 } 985 }
862 986
863 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 987 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864 ecb_function_ int ecb_ld32 (uint32_t x) 988 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865 { 989 {
990#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
991 unsigned long r;
992 _BitScanReverse (&r, x);
993 return (int)r;
994#else
866 int r = 0; 995 int r = 0;
867 996
868 if (x >> 16) { x >>= 16; r += 16; } 997 if (x >> 16) { x >>= 16; r += 16; }
869 if (x >> 8) { x >>= 8; r += 8; } 998 if (x >> 8) { x >>= 8; r += 8; }
870 if (x >> 4) { x >>= 4; r += 4; } 999 if (x >> 4) { x >>= 4; r += 4; }
871 if (x >> 2) { x >>= 2; r += 2; } 1000 if (x >> 2) { x >>= 2; r += 2; }
872 if (x >> 1) { r += 1; } 1001 if (x >> 1) { r += 1; }
873 1002
874 return r; 1003 return r;
1004#endif
875 } 1005 }
876 1006
877 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1007 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878 ecb_function_ int ecb_ld64 (uint64_t x) 1008 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879 { 1009 {
1010#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1011 unsigned long r;
1012 _BitScanReverse64 (&r, x);
1013 return (int)r;
1014#else
880 int r = 0; 1015 int r = 0;
881 1016
882 if (x >> 32) { x >>= 32; r += 32; } 1017 if (x >> 32) { x >>= 32; r += 32; }
883 1018
884 return r + ecb_ld32 (x); 1019 return r + ecb_ld32 (x);
1020#endif
885 } 1021 }
886#endif 1022#endif
887 1023
888ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1024ecb_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)); } 1025ecb_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; 1026ecb_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)); } 1027ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892 1028
893ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1029ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1030ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895{ 1031{
896 return ( (x * 0x0802U & 0x22110U) 1032 return ( (x * 0x0802U & 0x22110U)
897 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1033 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898} 1034}
899 1035
900ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1036ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1037ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902{ 1038{
903 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1039 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1040 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1041 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906 x = ( x >> 8 ) | ( x << 8); 1042 x = ( x >> 8 ) | ( x << 8);
907 1043
908 return x; 1044 return x;
909} 1045}
910 1046
911ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1047ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1048ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913{ 1049{
914 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1050 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1051 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1053 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
920 return x; 1056 return x;
921} 1057}
922 1058
923/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1059/* popcount64 is only available on 64 bit cpus as gcc builtin */
924/* so for this version we are lazy */ 1060/* so for this version we are lazy */
925ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1061ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926ecb_function_ int 1062ecb_function_ ecb_const int
927ecb_popcount64 (uint64_t x) 1063ecb_popcount64 (uint64_t x)
928{ 1064{
929 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1065 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930} 1066}
931 1067
932ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1068ecb_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; 1069ecb_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; 1070ecb_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; 1071ecb_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; 1072ecb_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; 1073ecb_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; 1074ecb_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; 1075ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
940 1076
941ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1077ecb_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); } 1078ecb_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); } 1079ecb_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); } 1080ecb_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); } 1081ecb_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); } 1082ecb_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); } 1083ecb_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); } 1084ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
949 1085
950#if ECB_GCC_VERSION(4,3) 1086#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1087 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1088 #define ecb_bswap16(x) __builtin_bswap16 (x)
1089 #else
951 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1090 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1091 #endif
952 #define ecb_bswap32(x) __builtin_bswap32 (x) 1092 #define ecb_bswap32(x) __builtin_bswap32 (x)
953 #define ecb_bswap64(x) __builtin_bswap64 (x) 1093 #define ecb_bswap64(x) __builtin_bswap64 (x)
1094#elif _MSC_VER
1095 #include <stdlib.h>
1096 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1097 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1098 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
954#else 1099#else
955 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1100 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956 ecb_function_ uint16_t 1101 ecb_function_ ecb_const uint16_t
957 ecb_bswap16 (uint16_t x) 1102 ecb_bswap16 (uint16_t x)
958 { 1103 {
959 return ecb_rotl16 (x, 8); 1104 return ecb_rotl16 (x, 8);
960 } 1105 }
961 1106
962 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1107 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963 ecb_function_ uint32_t 1108 ecb_function_ ecb_const uint32_t
964 ecb_bswap32 (uint32_t x) 1109 ecb_bswap32 (uint32_t x)
965 { 1110 {
966 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1111 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967 } 1112 }
968 1113
969 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1114 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970 ecb_function_ uint64_t 1115 ecb_function_ ecb_const uint64_t
971 ecb_bswap64 (uint64_t x) 1116 ecb_bswap64 (uint64_t x)
972 { 1117 {
973 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1118 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974 } 1119 }
975#endif 1120#endif
976 1121
977#if ECB_GCC_VERSION(4,5) 1122#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978 #define ecb_unreachable() __builtin_unreachable () 1123 #define ecb_unreachable() __builtin_unreachable ()
979#else 1124#else
980 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1125 /* this seems to work fine, but gcc always emits a warning for it :/ */
981 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1126 ecb_inline ecb_noreturn void ecb_unreachable (void);
982 ecb_inline void ecb_unreachable (void) { } 1127 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983#endif 1128#endif
984 1129
985/* try to tell the compiler that some condition is definitely true */ 1130/* try to tell the compiler that some condition is definitely true */
986#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1131#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987 1132
988ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1133ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989ecb_inline unsigned char 1134ecb_inline ecb_const uint32_t
990ecb_byteorder_helper (void) 1135ecb_byteorder_helper (void)
991{ 1136{
992 /* the union code still generates code under pressure in gcc, */ 1137 /* the union code still generates code under pressure in gcc, */
993 /* but less than using pointers, and always seems to */ 1138 /* but less than using pointers, and always seems to */
994 /* successfully return a constant. */ 1139 /* successfully return a constant. */
995 /* the reason why we have this horrible preprocessor mess */ 1140 /* the reason why we have this horrible preprocessor mess */
996 /* is to avoid it in all cases, at least on common architectures */ 1141 /* is to avoid it in all cases, at least on common architectures */
997 /* or when using a recent enough gcc version (>= 4.6) */ 1142 /* 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__ 1143#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1144 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1145 #define ECB_LITTLE_ENDIAN 1
1001 return 0x44; 1146 return 0x44332211;
1002#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1147#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1148 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1149 #define ECB_BIG_ENDIAN 1
1003 return 0x11; 1150 return 0x11223344;
1004#else 1151#else
1005 union 1152 union
1006 { 1153 {
1154 uint8_t c[4];
1007 uint32_t i; 1155 uint32_t u;
1008 uint8_t c;
1009 } u = { 0x11223344 }; 1156 } u = { 0x11, 0x22, 0x33, 0x44 };
1010 return u.c; 1157 return u.u;
1011#endif 1158#endif
1012} 1159}
1013 1160
1014ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1161ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1162ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1016ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1163ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1164ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1018 1165
1019#if ECB_GCC_VERSION(3,0) || ECB_C99 1166#if ECB_GCC_VERSION(3,0) || ECB_C99
1020 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1167 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1021#else 1168#else
1022 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1169 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1023#endif 1170#endif
1024 1171
1025#if __cplusplus 1172#if ECB_CPP
1026 template<typename T> 1173 template<typename T>
1027 static inline T ecb_div_rd (T val, T div) 1174 static inline T ecb_div_rd (T val, T div)
1028 { 1175 {
1029 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1176 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030 } 1177 }
… …
1047 } 1194 }
1048#else 1195#else
1049 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050#endif 1197#endif
1051 1198
1199ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200ecb_function_ ecb_const uint32_t
1201ecb_binary16_to_binary32 (uint32_t x)
1202{
1203 unsigned int s = (x & 0x8000) << (31 - 15);
1204 int e = (x >> 10) & 0x001f;
1205 unsigned int m = x & 0x03ff;
1206
1207 if (ecb_expect_false (e == 31))
1208 /* infinity or NaN */
1209 e = 255 - (127 - 15);
1210 else if (ecb_expect_false (!e))
1211 {
1212 if (ecb_expect_true (!m))
1213 /* zero, handled by code below by forcing e to 0 */
1214 e = 0 - (127 - 15);
1215 else
1216 {
1217 /* subnormal, renormalise */
1218 unsigned int s = 10 - ecb_ld32 (m);
1219
1220 m = (m << s) & 0x3ff; /* mask implicit bit */
1221 e -= s - 1;
1222 }
1223 }
1224
1225 /* e and m now are normalised, or zero, (or inf or nan) */
1226 e += 127 - 15;
1227
1228 return s | (e << 23) | (m << (23 - 10));
1229}
1230
1231ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1232ecb_function_ ecb_const uint16_t
1233ecb_binary32_to_binary16 (uint32_t x)
1234{
1235 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1236 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1237 unsigned int m = x & 0x007fffff;
1238
1239 x &= 0x7fffffff;
1240
1241 /* if it's within range of binary16 normals, use fast path */
1242 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1243 {
1244 /* mantissa round-to-even */
1245 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1246
1247 /* handle overflow */
1248 if (ecb_expect_false (m >= 0x00800000))
1249 {
1250 m >>= 1;
1251 e += 1;
1252 }
1253
1254 return s | (e << 10) | (m >> (23 - 10));
1255 }
1256
1257 /* handle large numbers and infinity */
1258 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1259 return s | 0x7c00;
1260
1261 /* handle zero, subnormals and small numbers */
1262 if (ecb_expect_true (x < 0x38800000))
1263 {
1264 /* zero */
1265 if (ecb_expect_true (!x))
1266 return s;
1267
1268 /* handle subnormals */
1269
1270 /* too small, will be zero */
1271 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1272 return s;
1273
1274 m |= 0x00800000; /* make implicit bit explicit */
1275
1276 /* very tricky - we need to round to the nearest e (+10) bit value */
1277 {
1278 unsigned int bits = 14 - e;
1279 unsigned int half = (1 << (bits - 1)) - 1;
1280 unsigned int even = (m >> bits) & 1;
1281
1282 /* if this overflows, we will end up with a normalised number */
1283 m = (m + half + even) >> bits;
1284 }
1285
1286 return s | m;
1287 }
1288
1289 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1290 m >>= 13;
1291
1292 return s | 0x7c00 | m | !m;
1293}
1294
1052/*******************************************************************************/ 1295/*******************************************************************************/
1053/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1296/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054 1297
1055/* basically, everything uses "ieee pure-endian" floating point numbers */ 1298/* basically, everything uses "ieee pure-endian" floating point numbers */
1056/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1299/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057#if 0 \ 1300#if 0 \
1058 || __i386 || __i386__ \ 1301 || __i386 || __i386__ \
1059 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1302 || ECB_GCC_AMD64 \
1060 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1303 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061 || defined __arm__ && defined __ARM_EABI__ \
1062 || defined __s390__ || defined __s390x__ \ 1304 || defined __s390__ || defined __s390x__ \
1063 || defined __mips__ \ 1305 || defined __mips__ \
1064 || defined __alpha__ \ 1306 || defined __alpha__ \
1065 || defined __hppa__ \ 1307 || defined __hppa__ \
1066 || defined __ia64__ \ 1308 || defined __ia64__ \
1067 || defined __m68k__ \ 1309 || defined __m68k__ \
1068 || defined __m88k__ \ 1310 || defined __m88k__ \
1069 || defined __sh__ \ 1311 || defined __sh__ \
1070 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1312 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1313 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1314 || defined __aarch64__
1071 #define ECB_STDFP 1 1315 #define ECB_STDFP 1
1072 #include <string.h> /* for memcpy */ 1316 #include <string.h> /* for memcpy */
1073#else 1317#else
1074 #define ECB_STDFP 0 1318 #define ECB_STDFP 0
1075#endif 1319#endif
… …
1089 #define ECB_NAN NAN 1333 #define ECB_NAN NAN
1090 #else 1334 #else
1091 #define ECB_NAN ECB_INFINITY 1335 #define ECB_NAN ECB_INFINITY
1092 #endif 1336 #endif
1093 1337
1094 /* converts an ieee half/binary16 to a float */ 1338 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1339 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096 ecb_function_ float 1340 #define ecb_frexpf(x,e) frexpf ((x), (e))
1097 ecb_binary16_to_float (uint16_t x) 1341 #else
1098 { 1342 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099 int e = (x >> 10) & 0x1f; 1343 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100 int m = x & 0x3ff; 1344 #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 1345
1111 /* convert a float to ieee single/binary32 */ 1346 /* convert a float to ieee single/binary32 */
1112 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1347 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1113 ecb_function_ uint32_t 1348 ecb_function_ ecb_const uint32_t
1114 ecb_float_to_binary32 (float x) 1349 ecb_float_to_binary32 (float x)
1115 { 1350 {
1116 uint32_t r; 1351 uint32_t r;
1117 1352
1118 #if ECB_STDFP 1353 #if ECB_STDFP
… …
1125 if (x == 0e0f ) return 0x00000000U; 1360 if (x == 0e0f ) return 0x00000000U;
1126 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1361 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1362 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128 if (x != x ) return 0x7fbfffffU; 1363 if (x != x ) return 0x7fbfffffU;
1129 1364
1130 m = frexpf (x, &e) * 0x1000000U; 1365 m = ecb_frexpf (x, &e) * 0x1000000U;
1131 1366
1132 r = m & 0x80000000U; 1367 r = m & 0x80000000U;
1133 1368
1134 if (r) 1369 if (r)
1135 m = -m; 1370 m = -m;
… …
1147 1382
1148 return r; 1383 return r;
1149 } 1384 }
1150 1385
1151 /* converts an ieee single/binary32 to a float */ 1386 /* converts an ieee single/binary32 to a float */
1152 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1387 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1153 ecb_function_ float 1388 ecb_function_ ecb_const float
1154 ecb_binary32_to_float (uint32_t x) 1389 ecb_binary32_to_float (uint32_t x)
1155 { 1390 {
1156 float r; 1391 float r;
1157 1392
1158 #if ECB_STDFP 1393 #if ECB_STDFP
… …
1168 x |= 0x800000U; 1403 x |= 0x800000U;
1169 else 1404 else
1170 e = 1; 1405 e = 1;
1171 1406
1172 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1407 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1173 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1408 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174 1409
1175 r = neg ? -r : r; 1410 r = neg ? -r : r;
1176 #endif 1411 #endif
1177 1412
1178 return r; 1413 return r;
1179 } 1414 }
1180 1415
1181 /* convert a double to ieee double/binary64 */ 1416 /* convert a double to ieee double/binary64 */
1182 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1417 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1183 ecb_function_ uint64_t 1418 ecb_function_ ecb_const uint64_t
1184 ecb_double_to_binary64 (double x) 1419 ecb_double_to_binary64 (double x)
1185 { 1420 {
1186 uint64_t r; 1421 uint64_t r;
1187 1422
1188 #if ECB_STDFP 1423 #if ECB_STDFP
… …
1217 1452
1218 return r; 1453 return r;
1219 } 1454 }
1220 1455
1221 /* converts an ieee double/binary64 to a double */ 1456 /* converts an ieee double/binary64 to a double */
1222 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1457 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1223 ecb_function_ double 1458 ecb_function_ ecb_const double
1224 ecb_binary64_to_double (uint64_t x) 1459 ecb_binary64_to_double (uint64_t x)
1225 { 1460 {
1226 double r; 1461 double r;
1227 1462
1228 #if ECB_STDFP 1463 #if ECB_STDFP
… …
1244 1479
1245 r = neg ? -r : r; 1480 r = neg ? -r : r;
1246 #endif 1481 #endif
1247 1482
1248 return r; 1483 return r;
1484 }
1485
1486 /* convert a float to ieee half/binary16 */
1487 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1488 ecb_function_ ecb_const uint16_t
1489 ecb_float_to_binary16 (float x)
1490 {
1491 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1492 }
1493
1494 /* convert an ieee half/binary16 to float */
1495 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1496 ecb_function_ ecb_const float
1497 ecb_binary16_to_float (uint16_t x)
1498 {
1499 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1249 } 1500 }
1250 1501
1251#endif 1502#endif
1252 1503
1253#endif 1504#endif
… …
1278#define inline_size ecb_inline 1529#define inline_size ecb_inline
1279 1530
1280#if EV_FEATURE_CODE 1531#if EV_FEATURE_CODE
1281# define inline_speed ecb_inline 1532# define inline_speed ecb_inline
1282#else 1533#else
1283# define inline_speed static noinline 1534# define inline_speed noinline static
1284#endif 1535#endif
1285 1536
1286#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287 1538
1288#if EV_MINPRI == EV_MAXPRI 1539#if EV_MINPRI == EV_MAXPRI
… …
1335#else 1586#else
1336 1587
1337#include <float.h> 1588#include <float.h>
1338 1589
1339/* a floor() replacement function, should be independent of ev_tstamp type */ 1590/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline
1340static ev_tstamp noinline 1592static ev_tstamp
1341ev_floor (ev_tstamp v) 1593ev_floor (ev_tstamp v)
1342{ 1594{
1343 /* the choice of shift factor is not terribly important */ 1595 /* the choice of shift factor is not terribly important */
1344#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1377 1629
1378#ifdef __linux 1630#ifdef __linux
1379# include <sys/utsname.h> 1631# include <sys/utsname.h>
1380#endif 1632#endif
1381 1633
1382static unsigned int noinline ecb_cold 1634noinline ecb_cold
1635static unsigned int
1383ev_linux_version (void) 1636ev_linux_version (void)
1384{ 1637{
1385#ifdef __linux 1638#ifdef __linux
1386 unsigned int v = 0; 1639 unsigned int v = 0;
1387 struct utsname buf; 1640 struct utsname buf;
… …
1416} 1669}
1417 1670
1418/*****************************************************************************/ 1671/*****************************************************************************/
1419 1672
1420#if EV_AVOID_STDIO 1673#if EV_AVOID_STDIO
1421static void noinline ecb_cold 1674noinline ecb_cold
1675static void
1422ev_printerr (const char *msg) 1676ev_printerr (const char *msg)
1423{ 1677{
1424 write (STDERR_FILENO, msg, strlen (msg)); 1678 write (STDERR_FILENO, msg, strlen (msg));
1425} 1679}
1426#endif 1680#endif
1427 1681
1428static void (*syserr_cb)(const char *msg) EV_THROW; 1682static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1429 1683
1430void ecb_cold 1684ecb_cold
1685void
1431ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1686ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1432{ 1687{
1433 syserr_cb = cb; 1688 syserr_cb = cb;
1434} 1689}
1435 1690
1436static void noinline ecb_cold 1691noinline ecb_cold
1692static void
1437ev_syserr (const char *msg) 1693ev_syserr (const char *msg)
1438{ 1694{
1439 if (!msg) 1695 if (!msg)
1440 msg = "(libev) system error"; 1696 msg = "(libev) system error";
1441 1697
… …
1454 abort (); 1710 abort ();
1455 } 1711 }
1456} 1712}
1457 1713
1458static void * 1714static void *
1459ev_realloc_emul (void *ptr, long size) EV_THROW 1715ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1460{ 1716{
1461 /* some systems, notably openbsd and darwin, fail to properly 1717 /* some systems, notably openbsd and darwin, fail to properly
1462 * implement realloc (x, 0) (as required by both ansi c-89 and 1718 * implement realloc (x, 0) (as required by both ansi c-89 and
1463 * the single unix specification, so work around them here. 1719 * the single unix specification, so work around them here.
1464 * recently, also (at least) fedora and debian started breaking it, 1720 * recently, also (at least) fedora and debian started breaking it,
… …
1470 1726
1471 free (ptr); 1727 free (ptr);
1472 return 0; 1728 return 0;
1473} 1729}
1474 1730
1475static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1731static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1476 1732
1477void ecb_cold 1733ecb_cold
1734void
1478ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1735ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1479{ 1736{
1480 alloc = cb; 1737 alloc = cb;
1481} 1738}
1482 1739
1483inline_speed void * 1740inline_speed void *
… …
1600 1857
1601/*****************************************************************************/ 1858/*****************************************************************************/
1602 1859
1603#ifndef EV_HAVE_EV_TIME 1860#ifndef EV_HAVE_EV_TIME
1604ev_tstamp 1861ev_tstamp
1605ev_time (void) EV_THROW 1862ev_time (void) EV_NOEXCEPT
1606{ 1863{
1607#if EV_USE_REALTIME 1864#if EV_USE_REALTIME
1608 if (expect_true (have_realtime)) 1865 if (expect_true (have_realtime))
1609 { 1866 {
1610 struct timespec ts; 1867 struct timespec ts;
… …
1634 return ev_time (); 1891 return ev_time ();
1635} 1892}
1636 1893
1637#if EV_MULTIPLICITY 1894#if EV_MULTIPLICITY
1638ev_tstamp 1895ev_tstamp
1639ev_now (EV_P) EV_THROW 1896ev_now (EV_P) EV_NOEXCEPT
1640{ 1897{
1641 return ev_rt_now; 1898 return ev_rt_now;
1642} 1899}
1643#endif 1900#endif
1644 1901
1645void 1902void
1646ev_sleep (ev_tstamp delay) EV_THROW 1903ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1647{ 1904{
1648 if (delay > 0.) 1905 if (delay > 0.)
1649 { 1906 {
1650#if EV_USE_NANOSLEEP 1907#if EV_USE_NANOSLEEP
1651 struct timespec ts; 1908 struct timespec ts;
1652 1909
1653 EV_TS_SET (ts, delay); 1910 EV_TS_SET (ts, delay);
1654 nanosleep (&ts, 0); 1911 nanosleep (&ts, 0);
1655#elif defined _WIN32 1912#elif defined _WIN32
1913 /* maybe this should round up, as ms is very low resolution */
1914 /* compared to select (µs) or nanosleep (ns) */
1656 Sleep ((unsigned long)(delay * 1e3)); 1915 Sleep ((unsigned long)(delay * 1e3));
1657#else 1916#else
1658 struct timeval tv; 1917 struct timeval tv;
1659 1918
1660 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1919 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1691 } 1950 }
1692 1951
1693 return ncur; 1952 return ncur;
1694} 1953}
1695 1954
1696static void * noinline ecb_cold 1955noinline ecb_cold
1956static void *
1697array_realloc (int elem, void *base, int *cur, int cnt) 1957array_realloc (int elem, void *base, int *cur, int cnt)
1698{ 1958{
1699 *cur = array_nextsize (elem, *cur, cnt); 1959 *cur = array_nextsize (elem, *cur, cnt);
1700 return ev_realloc (base, elem * *cur); 1960 return ev_realloc (base, elem * *cur);
1701} 1961}
… …
1704 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1705 1965
1706#define array_needsize(type,base,cur,cnt,init) \ 1966#define array_needsize(type,base,cur,cnt,init) \
1707 if (expect_false ((cnt) > (cur))) \ 1967 if (expect_false ((cnt) > (cur))) \
1708 { \ 1968 { \
1709 int ecb_unused ocur_ = (cur); \ 1969 ecb_unused int ocur_ = (cur); \
1710 (base) = (type *)array_realloc \ 1970 (base) = (type *)array_realloc \
1711 (sizeof (type), (base), &(cur), (cnt)); \ 1971 (sizeof (type), (base), &(cur), (cnt)); \
1712 init ((base) + (ocur_), (cur) - ocur_); \ 1972 init ((base) + (ocur_), (cur) - ocur_); \
1713 } 1973 }
1714 1974
… …
1726 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1986 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1727 1987
1728/*****************************************************************************/ 1988/*****************************************************************************/
1729 1989
1730/* dummy callback for pending events */ 1990/* dummy callback for pending events */
1731static void noinline 1991noinline
1992static void
1732pendingcb (EV_P_ ev_prepare *w, int revents) 1993pendingcb (EV_P_ ev_prepare *w, int revents)
1733{ 1994{
1734} 1995}
1735 1996
1736void noinline 1997noinline
1998void
1737ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1999ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1738{ 2000{
1739 W w_ = (W)w; 2001 W w_ = (W)w;
1740 int pri = ABSPRI (w_); 2002 int pri = ABSPRI (w_);
1741 2003
1742 if (expect_false (w_->pending)) 2004 if (expect_false (w_->pending))
… …
1803 if (expect_true (!anfd->reify)) 2065 if (expect_true (!anfd->reify))
1804 fd_event_nocheck (EV_A_ fd, revents); 2066 fd_event_nocheck (EV_A_ fd, revents);
1805} 2067}
1806 2068
1807void 2069void
1808ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2070ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1809{ 2071{
1810 if (fd >= 0 && fd < anfdmax) 2072 if (fd >= 0 && fd < anfdmax)
1811 fd_event_nocheck (EV_A_ fd, revents); 2073 fd_event_nocheck (EV_A_ fd, revents);
1812} 2074}
1813 2075
… …
1871 2133
1872 fdchangecnt = 0; 2134 fdchangecnt = 0;
1873} 2135}
1874 2136
1875/* something about the given fd changed */ 2137/* something about the given fd changed */
1876inline_size void 2138inline_size
2139void
1877fd_change (EV_P_ int fd, int flags) 2140fd_change (EV_P_ int fd, int flags)
1878{ 2141{
1879 unsigned char reify = anfds [fd].reify; 2142 unsigned char reify = anfds [fd].reify;
1880 anfds [fd].reify |= flags; 2143 anfds [fd].reify |= flags;
1881 2144
… …
1886 fdchanges [fdchangecnt - 1] = fd; 2149 fdchanges [fdchangecnt - 1] = fd;
1887 } 2150 }
1888} 2151}
1889 2152
1890/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2153/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1891inline_speed void ecb_cold 2154inline_speed ecb_cold void
1892fd_kill (EV_P_ int fd) 2155fd_kill (EV_P_ int fd)
1893{ 2156{
1894 ev_io *w; 2157 ev_io *w;
1895 2158
1896 while ((w = (ev_io *)anfds [fd].head)) 2159 while ((w = (ev_io *)anfds [fd].head))
… …
1899 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2162 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1900 } 2163 }
1901} 2164}
1902 2165
1903/* check whether the given fd is actually valid, for error recovery */ 2166/* check whether the given fd is actually valid, for error recovery */
1904inline_size int ecb_cold 2167inline_size ecb_cold int
1905fd_valid (int fd) 2168fd_valid (int fd)
1906{ 2169{
1907#ifdef _WIN32 2170#ifdef _WIN32
1908 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2171 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909#else 2172#else
1910 return fcntl (fd, F_GETFD) != -1; 2173 return fcntl (fd, F_GETFD) != -1;
1911#endif 2174#endif
1912} 2175}
1913 2176
1914/* called on EBADF to verify fds */ 2177/* called on EBADF to verify fds */
1915static void noinline ecb_cold 2178noinline ecb_cold
2179static void
1916fd_ebadf (EV_P) 2180fd_ebadf (EV_P)
1917{ 2181{
1918 int fd; 2182 int fd;
1919 2183
1920 for (fd = 0; fd < anfdmax; ++fd) 2184 for (fd = 0; fd < anfdmax; ++fd)
… …
1922 if (!fd_valid (fd) && errno == EBADF) 2186 if (!fd_valid (fd) && errno == EBADF)
1923 fd_kill (EV_A_ fd); 2187 fd_kill (EV_A_ fd);
1924} 2188}
1925 2189
1926/* called on ENOMEM in select/poll to kill some fds and retry */ 2190/* called on ENOMEM in select/poll to kill some fds and retry */
1927static void noinline ecb_cold 2191noinline ecb_cold
2192static void
1928fd_enomem (EV_P) 2193fd_enomem (EV_P)
1929{ 2194{
1930 int fd; 2195 int fd;
1931 2196
1932 for (fd = anfdmax; fd--; ) 2197 for (fd = anfdmax; fd--; )
… …
1936 break; 2201 break;
1937 } 2202 }
1938} 2203}
1939 2204
1940/* usually called after fork if backend needs to re-arm all fds from scratch */ 2205/* usually called after fork if backend needs to re-arm all fds from scratch */
1941static void noinline 2206noinline
2207static void
1942fd_rearm_all (EV_P) 2208fd_rearm_all (EV_P)
1943{ 2209{
1944 int fd; 2210 int fd;
1945 2211
1946 for (fd = 0; fd < anfdmax; ++fd) 2212 for (fd = 0; fd < anfdmax; ++fd)
… …
2127 2393
2128/*****************************************************************************/ 2394/*****************************************************************************/
2129 2395
2130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131 2397
2132static void noinline ecb_cold 2398noinline ecb_cold
2399static void
2133evpipe_init (EV_P) 2400evpipe_init (EV_P)
2134{ 2401{
2135 if (!ev_is_active (&pipe_w)) 2402 if (!ev_is_active (&pipe_w))
2136 { 2403 {
2137 int fds [2]; 2404 int fds [2];
… …
2208#endif 2475#endif
2209 { 2476 {
2210#ifdef _WIN32 2477#ifdef _WIN32
2211 WSABUF buf; 2478 WSABUF buf;
2212 DWORD sent; 2479 DWORD sent;
2213 buf.buf = &buf; 2480 buf.buf = (char *)&buf;
2214 buf.len = 1; 2481 buf.len = 1;
2215 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2482 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2216#else 2483#else
2217 write (evpipe [1], &(evpipe [1]), 1); 2484 write (evpipe [1], &(evpipe [1]), 1);
2218#endif 2485#endif
… …
2290} 2557}
2291 2558
2292/*****************************************************************************/ 2559/*****************************************************************************/
2293 2560
2294void 2561void
2295ev_feed_signal (int signum) EV_THROW 2562ev_feed_signal (int signum) EV_NOEXCEPT
2296{ 2563{
2297#if EV_MULTIPLICITY 2564#if EV_MULTIPLICITY
2298 EV_P; 2565 EV_P;
2299 ECB_MEMORY_FENCE_ACQUIRE; 2566 ECB_MEMORY_FENCE_ACQUIRE;
2300 EV_A = signals [signum - 1].loop; 2567 EV_A = signals [signum - 1].loop;
… …
2315#endif 2582#endif
2316 2583
2317 ev_feed_signal (signum); 2584 ev_feed_signal (signum);
2318} 2585}
2319 2586
2320void noinline 2587noinline
2588void
2321ev_feed_signal_event (EV_P_ int signum) EV_THROW 2589ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2322{ 2590{
2323 WL w; 2591 WL w;
2324 2592
2325 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2593 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2326 return; 2594 return;
… …
2442#endif 2710#endif
2443#if EV_USE_SELECT 2711#if EV_USE_SELECT
2444# include "ev_select.c" 2712# include "ev_select.c"
2445#endif 2713#endif
2446 2714
2447int ecb_cold 2715ecb_cold int
2448ev_version_major (void) EV_THROW 2716ev_version_major (void) EV_NOEXCEPT
2449{ 2717{
2450 return EV_VERSION_MAJOR; 2718 return EV_VERSION_MAJOR;
2451} 2719}
2452 2720
2453int ecb_cold 2721ecb_cold int
2454ev_version_minor (void) EV_THROW 2722ev_version_minor (void) EV_NOEXCEPT
2455{ 2723{
2456 return EV_VERSION_MINOR; 2724 return EV_VERSION_MINOR;
2457} 2725}
2458 2726
2459/* return true if we are running with elevated privileges and should ignore env variables */ 2727/* return true if we are running with elevated privileges and should ignore env variables */
2460int inline_size ecb_cold 2728inline_size ecb_cold int
2461enable_secure (void) 2729enable_secure (void)
2462{ 2730{
2463#ifdef _WIN32 2731#ifdef _WIN32
2464 return 0; 2732 return 0;
2465#else 2733#else
2466 return getuid () != geteuid () 2734 return getuid () != geteuid ()
2467 || getgid () != getegid (); 2735 || getgid () != getegid ();
2468#endif 2736#endif
2469} 2737}
2470 2738
2471unsigned int ecb_cold 2739ecb_cold
2740unsigned int
2472ev_supported_backends (void) EV_THROW 2741ev_supported_backends (void) EV_NOEXCEPT
2473{ 2742{
2474 unsigned int flags = 0; 2743 unsigned int flags = 0;
2475 2744
2476 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2477 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2746 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2480 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2481 2750
2482 return flags; 2751 return flags;
2483} 2752}
2484 2753
2485unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2486ev_recommended_backends (void) EV_THROW 2756ev_recommended_backends (void) EV_NOEXCEPT
2487{ 2757{
2488 unsigned int flags = ev_supported_backends (); 2758 unsigned int flags = ev_supported_backends ();
2489 2759
2490#ifndef __NetBSD__ 2760#ifndef __NetBSD__
2491 /* kqueue is borked on everything but netbsd apparently */ 2761 /* kqueue is borked on everything but netbsd apparently */
… …
2502#endif 2772#endif
2503 2773
2504 return flags; 2774 return flags;
2505} 2775}
2506 2776
2507unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2508ev_embeddable_backends (void) EV_THROW 2779ev_embeddable_backends (void) EV_NOEXCEPT
2509{ 2780{
2510 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511 2782
2512 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2783 /* 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 */ 2784 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2515 2786
2516 return flags; 2787 return flags;
2517} 2788}
2518 2789
2519unsigned int 2790unsigned int
2520ev_backend (EV_P) EV_THROW 2791ev_backend (EV_P) EV_NOEXCEPT
2521{ 2792{
2522 return backend; 2793 return backend;
2523} 2794}
2524 2795
2525#if EV_FEATURE_API 2796#if EV_FEATURE_API
2526unsigned int 2797unsigned int
2527ev_iteration (EV_P) EV_THROW 2798ev_iteration (EV_P) EV_NOEXCEPT
2528{ 2799{
2529 return loop_count; 2800 return loop_count;
2530} 2801}
2531 2802
2532unsigned int 2803unsigned int
2533ev_depth (EV_P) EV_THROW 2804ev_depth (EV_P) EV_NOEXCEPT
2534{ 2805{
2535 return loop_depth; 2806 return loop_depth;
2536} 2807}
2537 2808
2538void 2809void
2539ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2810ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2540{ 2811{
2541 io_blocktime = interval; 2812 io_blocktime = interval;
2542} 2813}
2543 2814
2544void 2815void
2545ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2816ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2546{ 2817{
2547 timeout_blocktime = interval; 2818 timeout_blocktime = interval;
2548} 2819}
2549 2820
2550void 2821void
2551ev_set_userdata (EV_P_ void *data) EV_THROW 2822ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2552{ 2823{
2553 userdata = data; 2824 userdata = data;
2554} 2825}
2555 2826
2556void * 2827void *
2557ev_userdata (EV_P) EV_THROW 2828ev_userdata (EV_P) EV_NOEXCEPT
2558{ 2829{
2559 return userdata; 2830 return userdata;
2560} 2831}
2561 2832
2562void 2833void
2563ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2834ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2564{ 2835{
2565 invoke_cb = invoke_pending_cb; 2836 invoke_cb = invoke_pending_cb;
2566} 2837}
2567 2838
2568void 2839void
2569ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2840ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2570{ 2841{
2571 release_cb = release; 2842 release_cb = release;
2572 acquire_cb = acquire; 2843 acquire_cb = acquire;
2573} 2844}
2574#endif 2845#endif
2575 2846
2576/* initialise a loop structure, must be zero-initialised */ 2847/* initialise a loop structure, must be zero-initialised */
2577static void noinline ecb_cold 2848noinline ecb_cold
2849static void
2578loop_init (EV_P_ unsigned int flags) EV_THROW 2850loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2579{ 2851{
2580 if (!backend) 2852 if (!backend)
2581 { 2853 {
2582 origflags = flags; 2854 origflags = flags;
2583 2855
… …
2669#endif 2941#endif
2670 } 2942 }
2671} 2943}
2672 2944
2673/* free up a loop structure */ 2945/* free up a loop structure */
2674void ecb_cold 2946ecb_cold
2947void
2675ev_loop_destroy (EV_P) 2948ev_loop_destroy (EV_P)
2676{ 2949{
2677 int i; 2950 int i;
2678 2951
2679#if EV_MULTIPLICITY 2952#if EV_MULTIPLICITY
… …
2800#if EV_USE_INOTIFY 3073#if EV_USE_INOTIFY
2801 infy_fork (EV_A); 3074 infy_fork (EV_A);
2802#endif 3075#endif
2803 3076
2804#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805 if (ev_is_active (&pipe_w)) 3078 if (ev_is_active (&pipe_w) && postfork != 2)
2806 { 3079 {
2807 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3080 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2808 3081
2809 ev_ref (EV_A); 3082 ev_ref (EV_A);
2810 ev_io_stop (EV_A_ &pipe_w); 3083 ev_io_stop (EV_A_ &pipe_w);
… …
2821 postfork = 0; 3094 postfork = 0;
2822} 3095}
2823 3096
2824#if EV_MULTIPLICITY 3097#if EV_MULTIPLICITY
2825 3098
3099ecb_cold
2826struct ev_loop * ecb_cold 3100struct ev_loop *
2827ev_loop_new (unsigned int flags) EV_THROW 3101ev_loop_new (unsigned int flags) EV_NOEXCEPT
2828{ 3102{
2829 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830 3104
2831 memset (EV_A, 0, sizeof (struct ev_loop)); 3105 memset (EV_A, 0, sizeof (struct ev_loop));
2832 loop_init (EV_A_ flags); 3106 loop_init (EV_A_ flags);
… …
2839} 3113}
2840 3114
2841#endif /* multiplicity */ 3115#endif /* multiplicity */
2842 3116
2843#if EV_VERIFY 3117#if EV_VERIFY
2844static void noinline ecb_cold 3118noinline ecb_cold
3119static void
2845verify_watcher (EV_P_ W w) 3120verify_watcher (EV_P_ W w)
2846{ 3121{
2847 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3122 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2848 3123
2849 if (w->pending) 3124 if (w->pending)
2850 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3125 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2851} 3126}
2852 3127
2853static void noinline ecb_cold 3128noinline ecb_cold
3129static void
2854verify_heap (EV_P_ ANHE *heap, int N) 3130verify_heap (EV_P_ ANHE *heap, int N)
2855{ 3131{
2856 int i; 3132 int i;
2857 3133
2858 for (i = HEAP0; i < N + HEAP0; ++i) 3134 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2863 3139
2864 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865 } 3141 }
2866} 3142}
2867 3143
2868static void noinline ecb_cold 3144noinline ecb_cold
3145static void
2869array_verify (EV_P_ W *ws, int cnt) 3146array_verify (EV_P_ W *ws, int cnt)
2870{ 3147{
2871 while (cnt--) 3148 while (cnt--)
2872 { 3149 {
2873 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3150 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2876} 3153}
2877#endif 3154#endif
2878 3155
2879#if EV_FEATURE_API 3156#if EV_FEATURE_API
2880void ecb_cold 3157void ecb_cold
2881ev_verify (EV_P) EV_THROW 3158ev_verify (EV_P) EV_NOEXCEPT
2882{ 3159{
2883#if EV_VERIFY 3160#if EV_VERIFY
2884 int i; 3161 int i;
2885 WL w, w2; 3162 WL w, w2;
2886 3163
… …
2962#endif 3239#endif
2963} 3240}
2964#endif 3241#endif
2965 3242
2966#if EV_MULTIPLICITY 3243#if EV_MULTIPLICITY
3244ecb_cold
2967struct ev_loop * ecb_cold 3245struct ev_loop *
2968#else 3246#else
2969int 3247int
2970#endif 3248#endif
2971ev_default_loop (unsigned int flags) EV_THROW 3249ev_default_loop (unsigned int flags) EV_NOEXCEPT
2972{ 3250{
2973 if (!ev_default_loop_ptr) 3251 if (!ev_default_loop_ptr)
2974 { 3252 {
2975#if EV_MULTIPLICITY 3253#if EV_MULTIPLICITY
2976 EV_P = ev_default_loop_ptr = &default_loop_struct; 3254 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2995 3273
2996 return ev_default_loop_ptr; 3274 return ev_default_loop_ptr;
2997} 3275}
2998 3276
2999void 3277void
3000ev_loop_fork (EV_P) EV_THROW 3278ev_loop_fork (EV_P) EV_NOEXCEPT
3001{ 3279{
3002 postfork = 1; 3280 postfork = 1;
3003} 3281}
3004 3282
3005/*****************************************************************************/ 3283/*****************************************************************************/
… …
3009{ 3287{
3010 EV_CB_INVOKE ((W)w, revents); 3288 EV_CB_INVOKE ((W)w, revents);
3011} 3289}
3012 3290
3013unsigned int 3291unsigned int
3014ev_pending_count (EV_P) EV_THROW 3292ev_pending_count (EV_P) EV_NOEXCEPT
3015{ 3293{
3016 int pri; 3294 int pri;
3017 unsigned int count = 0; 3295 unsigned int count = 0;
3018 3296
3019 for (pri = NUMPRI; pri--; ) 3297 for (pri = NUMPRI; pri--; )
3020 count += pendingcnt [pri]; 3298 count += pendingcnt [pri];
3021 3299
3022 return count; 3300 return count;
3023} 3301}
3024 3302
3025void noinline 3303noinline
3304void
3026ev_invoke_pending (EV_P) 3305ev_invoke_pending (EV_P)
3027{ 3306{
3028 pendingpri = NUMPRI; 3307 pendingpri = NUMPRI;
3029 3308
3030 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3309 do
3031 { 3310 {
3032 --pendingpri; 3311 --pendingpri;
3033 3312
3313 /* pendingpri possibly gets modified in the inner loop */
3034 while (pendingcnt [pendingpri]) 3314 while (pendingcnt [pendingpri])
3035 { 3315 {
3036 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3316 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3037 3317
3038 p->w->pending = 0; 3318 p->w->pending = 0;
3039 EV_CB_INVOKE (p->w, p->events); 3319 EV_CB_INVOKE (p->w, p->events);
3040 EV_FREQUENT_CHECK; 3320 EV_FREQUENT_CHECK;
3041 } 3321 }
3042 } 3322 }
3323 while (pendingpri);
3043} 3324}
3044 3325
3045#if EV_IDLE_ENABLE 3326#if EV_IDLE_ENABLE
3046/* make idle watchers pending. this handles the "call-idle */ 3327/* make idle watchers pending. this handles the "call-idle */
3047/* only when higher priorities are idle" logic */ 3328/* only when higher priorities are idle" logic */
… …
3105 } 3386 }
3106} 3387}
3107 3388
3108#if EV_PERIODIC_ENABLE 3389#if EV_PERIODIC_ENABLE
3109 3390
3110static void noinline 3391noinline
3392static void
3111periodic_recalc (EV_P_ ev_periodic *w) 3393periodic_recalc (EV_P_ ev_periodic *w)
3112{ 3394{
3113 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3395 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); 3396 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3115 3397
… …
3173 } 3455 }
3174} 3456}
3175 3457
3176/* simply recalculate all periodics */ 3458/* simply recalculate all periodics */
3177/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3459/* TODO: maybe ensure that at least one event happens when jumping forward? */
3178static void noinline ecb_cold 3460noinline ecb_cold
3461static void
3179periodics_reschedule (EV_P) 3462periodics_reschedule (EV_P)
3180{ 3463{
3181 int i; 3464 int i;
3182 3465
3183 /* adjust periodics after time jump */ 3466 /* adjust periodics after time jump */
… …
3196 reheap (periodics, periodiccnt); 3479 reheap (periodics, periodiccnt);
3197} 3480}
3198#endif 3481#endif
3199 3482
3200/* adjust all timers by a given offset */ 3483/* adjust all timers by a given offset */
3201static void noinline ecb_cold 3484noinline ecb_cold
3485static void
3202timers_reschedule (EV_P_ ev_tstamp adjust) 3486timers_reschedule (EV_P_ ev_tstamp adjust)
3203{ 3487{
3204 int i; 3488 int i;
3205 3489
3206 for (i = 0; i < timercnt; ++i) 3490 for (i = 0; i < timercnt; ++i)
… …
3453 3737
3454 return activecnt; 3738 return activecnt;
3455} 3739}
3456 3740
3457void 3741void
3458ev_break (EV_P_ int how) EV_THROW 3742ev_break (EV_P_ int how) EV_NOEXCEPT
3459{ 3743{
3460 loop_done = how; 3744 loop_done = how;
3461} 3745}
3462 3746
3463void 3747void
3464ev_ref (EV_P) EV_THROW 3748ev_ref (EV_P) EV_NOEXCEPT
3465{ 3749{
3466 ++activecnt; 3750 ++activecnt;
3467} 3751}
3468 3752
3469void 3753void
3470ev_unref (EV_P) EV_THROW 3754ev_unref (EV_P) EV_NOEXCEPT
3471{ 3755{
3472 --activecnt; 3756 --activecnt;
3473} 3757}
3474 3758
3475void 3759void
3476ev_now_update (EV_P) EV_THROW 3760ev_now_update (EV_P) EV_NOEXCEPT
3477{ 3761{
3478 time_update (EV_A_ 1e100); 3762 time_update (EV_A_ 1e100);
3479} 3763}
3480 3764
3481void 3765void
3482ev_suspend (EV_P) EV_THROW 3766ev_suspend (EV_P) EV_NOEXCEPT
3483{ 3767{
3484 ev_now_update (EV_A); 3768 ev_now_update (EV_A);
3485} 3769}
3486 3770
3487void 3771void
3488ev_resume (EV_P) EV_THROW 3772ev_resume (EV_P) EV_NOEXCEPT
3489{ 3773{
3490 ev_tstamp mn_prev = mn_now; 3774 ev_tstamp mn_prev = mn_now;
3491 3775
3492 ev_now_update (EV_A); 3776 ev_now_update (EV_A);
3493 timers_reschedule (EV_A_ mn_now - mn_prev); 3777 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3532 w->pending = 0; 3816 w->pending = 0;
3533 } 3817 }
3534} 3818}
3535 3819
3536int 3820int
3537ev_clear_pending (EV_P_ void *w) EV_THROW 3821ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3538{ 3822{
3539 W w_ = (W)w; 3823 W w_ = (W)w;
3540 int pending = w_->pending; 3824 int pending = w_->pending;
3541 3825
3542 if (expect_true (pending)) 3826 if (expect_true (pending))
… …
3574 w->active = 0; 3858 w->active = 0;
3575} 3859}
3576 3860
3577/*****************************************************************************/ 3861/*****************************************************************************/
3578 3862
3579void noinline 3863noinline
3864void
3580ev_io_start (EV_P_ ev_io *w) EV_THROW 3865ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3581{ 3866{
3582 int fd = w->fd; 3867 int fd = w->fd;
3583 3868
3584 if (expect_false (ev_is_active (w))) 3869 if (expect_false (ev_is_active (w)))
3585 return; 3870 return;
… …
3600 w->events &= ~EV__IOFDSET; 3885 w->events &= ~EV__IOFDSET;
3601 3886
3602 EV_FREQUENT_CHECK; 3887 EV_FREQUENT_CHECK;
3603} 3888}
3604 3889
3605void noinline 3890noinline
3891void
3606ev_io_stop (EV_P_ ev_io *w) EV_THROW 3892ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3607{ 3893{
3608 clear_pending (EV_A_ (W)w); 3894 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 3895 if (expect_false (!ev_is_active (w)))
3610 return; 3896 return;
3611 3897
… …
3619 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3905 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620 3906
3621 EV_FREQUENT_CHECK; 3907 EV_FREQUENT_CHECK;
3622} 3908}
3623 3909
3624void noinline 3910noinline
3911void
3625ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3912ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 3913{
3627 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3628 return; 3915 return;
3629 3916
3630 ev_at (w) += mn_now; 3917 ev_at (w) += mn_now;
… …
3643 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3644 3931
3645 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3932 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3646} 3933}
3647 3934
3648void noinline 3935noinline
3936void
3649ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3650{ 3938{
3651 clear_pending (EV_A_ (W)w); 3939 clear_pending (EV_A_ (W)w);
3652 if (expect_false (!ev_is_active (w))) 3940 if (expect_false (!ev_is_active (w)))
3653 return; 3941 return;
3654 3942
… …
3673 ev_stop (EV_A_ (W)w); 3961 ev_stop (EV_A_ (W)w);
3674 3962
3675 EV_FREQUENT_CHECK; 3963 EV_FREQUENT_CHECK;
3676} 3964}
3677 3965
3678void noinline 3966noinline
3967void
3679ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3968ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3680{ 3969{
3681 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3682 3971
3683 clear_pending (EV_A_ (W)w); 3972 clear_pending (EV_A_ (W)w);
3684 3973
… …
3701 3990
3702 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
3703} 3992}
3704 3993
3705ev_tstamp 3994ev_tstamp
3706ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3995ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3707{ 3996{
3708 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3997 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3709} 3998}
3710 3999
3711#if EV_PERIODIC_ENABLE 4000#if EV_PERIODIC_ENABLE
3712void noinline 4001noinline
4002void
3713ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4003ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3714{ 4004{
3715 if (expect_false (ev_is_active (w))) 4005 if (expect_false (ev_is_active (w)))
3716 return; 4006 return;
3717 4007
3718 if (w->reschedule_cb) 4008 if (w->reschedule_cb)
… …
3737 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3738 4028
3739 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4029 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3740} 4030}
3741 4031
3742void noinline 4032noinline
4033void
3743ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4034ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3744{ 4035{
3745 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
3746 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
3747 return; 4038 return;
3748 4039
… …
3765 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3766 4057
3767 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3768} 4059}
3769 4060
3770void noinline 4061noinline
4062void
3771ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4063ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3772{ 4064{
3773 /* TODO: use adjustheap and recalculation */ 4065 /* TODO: use adjustheap and recalculation */
3774 ev_periodic_stop (EV_A_ w); 4066 ev_periodic_stop (EV_A_ w);
3775 ev_periodic_start (EV_A_ w); 4067 ev_periodic_start (EV_A_ w);
3776} 4068}
… …
3780# define SA_RESTART 0 4072# define SA_RESTART 0
3781#endif 4073#endif
3782 4074
3783#if EV_SIGNAL_ENABLE 4075#if EV_SIGNAL_ENABLE
3784 4076
3785void noinline 4077noinline
4078void
3786ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4079ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3787{ 4080{
3788 if (expect_false (ev_is_active (w))) 4081 if (expect_false (ev_is_active (w)))
3789 return; 4082 return;
3790 4083
3791 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4084 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3862 } 4155 }
3863 4156
3864 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3865} 4158}
3866 4159
3867void noinline 4160noinline
4161void
3868ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4162ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3869{ 4163{
3870 clear_pending (EV_A_ (W)w); 4164 clear_pending (EV_A_ (W)w);
3871 if (expect_false (!ev_is_active (w))) 4165 if (expect_false (!ev_is_active (w)))
3872 return; 4166 return;
3873 4167
… …
3904#endif 4198#endif
3905 4199
3906#if EV_CHILD_ENABLE 4200#if EV_CHILD_ENABLE
3907 4201
3908void 4202void
3909ev_child_start (EV_P_ ev_child *w) EV_THROW 4203ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3910{ 4204{
3911#if EV_MULTIPLICITY 4205#if EV_MULTIPLICITY
3912 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4206 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3913#endif 4207#endif
3914 if (expect_false (ev_is_active (w))) 4208 if (expect_false (ev_is_active (w)))
… …
3921 4215
3922 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3923} 4217}
3924 4218
3925void 4219void
3926ev_child_stop (EV_P_ ev_child *w) EV_THROW 4220ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3927{ 4221{
3928 clear_pending (EV_A_ (W)w); 4222 clear_pending (EV_A_ (W)w);
3929 if (expect_false (!ev_is_active (w))) 4223 if (expect_false (!ev_is_active (w)))
3930 return; 4224 return;
3931 4225
… …
3948 4242
3949#define DEF_STAT_INTERVAL 5.0074891 4243#define DEF_STAT_INTERVAL 5.0074891
3950#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4244#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951#define MIN_STAT_INTERVAL 0.1074891 4245#define MIN_STAT_INTERVAL 0.1074891
3952 4246
3953static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4247noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954 4248
3955#if EV_USE_INOTIFY 4249#if EV_USE_INOTIFY
3956 4250
3957/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4251/* 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) 4252# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959 4253
3960static void noinline 4254noinline
4255static void
3961infy_add (EV_P_ ev_stat *w) 4256infy_add (EV_P_ ev_stat *w)
3962{ 4257{
3963 w->wd = inotify_add_watch (fs_fd, w->path, 4258 w->wd = inotify_add_watch (fs_fd, w->path,
3964 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4259 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4260 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4029 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4324 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030 ev_timer_again (EV_A_ &w->timer); 4325 ev_timer_again (EV_A_ &w->timer);
4031 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4326 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032} 4327}
4033 4328
4034static void noinline 4329noinline
4330static void
4035infy_del (EV_P_ ev_stat *w) 4331infy_del (EV_P_ ev_stat *w)
4036{ 4332{
4037 int slot; 4333 int slot;
4038 int wd = w->wd; 4334 int wd = w->wd;
4039 4335
… …
4046 4342
4047 /* remove this watcher, if others are watching it, they will rearm */ 4343 /* remove this watcher, if others are watching it, they will rearm */
4048 inotify_rm_watch (fs_fd, wd); 4344 inotify_rm_watch (fs_fd, wd);
4049} 4345}
4050 4346
4051static void noinline 4347noinline
4348static void
4052infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4349infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053{ 4350{
4054 if (slot < 0) 4351 if (slot < 0)
4055 /* overflow, need to check for all hash slots */ 4352 /* overflow, need to check for all hash slots */
4056 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4353 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4092 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4389 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093 ofs += sizeof (struct inotify_event) + ev->len; 4390 ofs += sizeof (struct inotify_event) + ev->len;
4094 } 4391 }
4095} 4392}
4096 4393
4097inline_size void ecb_cold 4394inline_size ecb_cold
4395void
4098ev_check_2625 (EV_P) 4396ev_check_2625 (EV_P)
4099{ 4397{
4100 /* kernels < 2.6.25 are borked 4398 /* kernels < 2.6.25 are borked
4101 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4399 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4102 */ 4400 */
… …
4192#else 4490#else
4193# define EV_LSTAT(p,b) lstat (p, b) 4491# define EV_LSTAT(p,b) lstat (p, b)
4194#endif 4492#endif
4195 4493
4196void 4494void
4197ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4495ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4198{ 4496{
4199 if (lstat (w->path, &w->attr) < 0) 4497 if (lstat (w->path, &w->attr) < 0)
4200 w->attr.st_nlink = 0; 4498 w->attr.st_nlink = 0;
4201 else if (!w->attr.st_nlink) 4499 else if (!w->attr.st_nlink)
4202 w->attr.st_nlink = 1; 4500 w->attr.st_nlink = 1;
4203} 4501}
4204 4502
4205static void noinline 4503noinline
4504static void
4206stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4505stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207{ 4506{
4208 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4507 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209 4508
4210 ev_statdata prev = w->attr; 4509 ev_statdata prev = w->attr;
… …
4241 ev_feed_event (EV_A_ w, EV_STAT); 4540 ev_feed_event (EV_A_ w, EV_STAT);
4242 } 4541 }
4243} 4542}
4244 4543
4245void 4544void
4246ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4545ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4546{
4248 if (expect_false (ev_is_active (w))) 4547 if (expect_false (ev_is_active (w)))
4249 return; 4548 return;
4250 4549
4251 ev_stat_stat (EV_A_ w); 4550 ev_stat_stat (EV_A_ w);
… …
4272 4571
4273 EV_FREQUENT_CHECK; 4572 EV_FREQUENT_CHECK;
4274} 4573}
4275 4574
4276void 4575void
4277ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4576ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4278{ 4577{
4279 clear_pending (EV_A_ (W)w); 4578 clear_pending (EV_A_ (W)w);
4280 if (expect_false (!ev_is_active (w))) 4579 if (expect_false (!ev_is_active (w)))
4281 return; 4580 return;
4282 4581
… …
4298} 4597}
4299#endif 4598#endif
4300 4599
4301#if EV_IDLE_ENABLE 4600#if EV_IDLE_ENABLE
4302void 4601void
4303ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4602ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4304{ 4603{
4305 if (expect_false (ev_is_active (w))) 4604 if (expect_false (ev_is_active (w)))
4306 return; 4605 return;
4307 4606
4308 pri_adjust (EV_A_ (W)w); 4607 pri_adjust (EV_A_ (W)w);
… …
4321 4620
4322 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
4323} 4622}
4324 4623
4325void 4624void
4326ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4625ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4327{ 4626{
4328 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
4330 return; 4629 return;
4331 4630
… …
4345} 4644}
4346#endif 4645#endif
4347 4646
4348#if EV_PREPARE_ENABLE 4647#if EV_PREPARE_ENABLE
4349void 4648void
4350ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4649ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4351{ 4650{
4352 if (expect_false (ev_is_active (w))) 4651 if (expect_false (ev_is_active (w)))
4353 return; 4652 return;
4354 4653
4355 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
… …
4360 4659
4361 EV_FREQUENT_CHECK; 4660 EV_FREQUENT_CHECK;
4362} 4661}
4363 4662
4364void 4663void
4365ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4664ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4366{ 4665{
4367 clear_pending (EV_A_ (W)w); 4666 clear_pending (EV_A_ (W)w);
4368 if (expect_false (!ev_is_active (w))) 4667 if (expect_false (!ev_is_active (w)))
4369 return; 4668 return;
4370 4669
… …
4383} 4682}
4384#endif 4683#endif
4385 4684
4386#if EV_CHECK_ENABLE 4685#if EV_CHECK_ENABLE
4387void 4686void
4388ev_check_start (EV_P_ ev_check *w) EV_THROW 4687ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4389{ 4688{
4390 if (expect_false (ev_is_active (w))) 4689 if (expect_false (ev_is_active (w)))
4391 return; 4690 return;
4392 4691
4393 EV_FREQUENT_CHECK; 4692 EV_FREQUENT_CHECK;
… …
4398 4697
4399 EV_FREQUENT_CHECK; 4698 EV_FREQUENT_CHECK;
4400} 4699}
4401 4700
4402void 4701void
4403ev_check_stop (EV_P_ ev_check *w) EV_THROW 4702ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4404{ 4703{
4405 clear_pending (EV_A_ (W)w); 4704 clear_pending (EV_A_ (W)w);
4406 if (expect_false (!ev_is_active (w))) 4705 if (expect_false (!ev_is_active (w)))
4407 return; 4706 return;
4408 4707
… …
4420 EV_FREQUENT_CHECK; 4719 EV_FREQUENT_CHECK;
4421} 4720}
4422#endif 4721#endif
4423 4722
4424#if EV_EMBED_ENABLE 4723#if EV_EMBED_ENABLE
4425void noinline 4724noinline
4725void
4426ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4726ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4427{ 4727{
4428 ev_run (w->other, EVRUN_NOWAIT); 4728 ev_run (w->other, EVRUN_NOWAIT);
4429} 4729}
4430 4730
4431static void 4731static void
… …
4479 ev_idle_stop (EV_A_ idle); 4779 ev_idle_stop (EV_A_ idle);
4480} 4780}
4481#endif 4781#endif
4482 4782
4483void 4783void
4484ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4784ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4485{ 4785{
4486 if (expect_false (ev_is_active (w))) 4786 if (expect_false (ev_is_active (w)))
4487 return; 4787 return;
4488 4788
4489 { 4789 {
… …
4510 4810
4511 EV_FREQUENT_CHECK; 4811 EV_FREQUENT_CHECK;
4512} 4812}
4513 4813
4514void 4814void
4515ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4815ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4516{ 4816{
4517 clear_pending (EV_A_ (W)w); 4817 clear_pending (EV_A_ (W)w);
4518 if (expect_false (!ev_is_active (w))) 4818 if (expect_false (!ev_is_active (w)))
4519 return; 4819 return;
4520 4820
… …
4530} 4830}
4531#endif 4831#endif
4532 4832
4533#if EV_FORK_ENABLE 4833#if EV_FORK_ENABLE
4534void 4834void
4535ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4835ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4536{ 4836{
4537 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4538 return; 4838 return;
4539 4839
4540 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
… …
4545 4845
4546 EV_FREQUENT_CHECK; 4846 EV_FREQUENT_CHECK;
4547} 4847}
4548 4848
4549void 4849void
4550ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4850ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4551{ 4851{
4552 clear_pending (EV_A_ (W)w); 4852 clear_pending (EV_A_ (W)w);
4553 if (expect_false (!ev_is_active (w))) 4853 if (expect_false (!ev_is_active (w)))
4554 return; 4854 return;
4555 4855
… …
4568} 4868}
4569#endif 4869#endif
4570 4870
4571#if EV_CLEANUP_ENABLE 4871#if EV_CLEANUP_ENABLE
4572void 4872void
4573ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4873ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4574{ 4874{
4575 if (expect_false (ev_is_active (w))) 4875 if (expect_false (ev_is_active (w)))
4576 return; 4876 return;
4577 4877
4578 EV_FREQUENT_CHECK; 4878 EV_FREQUENT_CHECK;
… …
4585 ev_unref (EV_A); 4885 ev_unref (EV_A);
4586 EV_FREQUENT_CHECK; 4886 EV_FREQUENT_CHECK;
4587} 4887}
4588 4888
4589void 4889void
4590ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4890ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4591{ 4891{
4592 clear_pending (EV_A_ (W)w); 4892 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 4893 if (expect_false (!ev_is_active (w)))
4594 return; 4894 return;
4595 4895
… …
4609} 4909}
4610#endif 4910#endif
4611 4911
4612#if EV_ASYNC_ENABLE 4912#if EV_ASYNC_ENABLE
4613void 4913void
4614ev_async_start (EV_P_ ev_async *w) EV_THROW 4914ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4615{ 4915{
4616 if (expect_false (ev_is_active (w))) 4916 if (expect_false (ev_is_active (w)))
4617 return; 4917 return;
4618 4918
4619 w->sent = 0; 4919 w->sent = 0;
… …
4628 4928
4629 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4630} 4930}
4631 4931
4632void 4932void
4633ev_async_stop (EV_P_ ev_async *w) EV_THROW 4933ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4634{ 4934{
4635 clear_pending (EV_A_ (W)w); 4935 clear_pending (EV_A_ (W)w);
4636 if (expect_false (!ev_is_active (w))) 4936 if (expect_false (!ev_is_active (w)))
4637 return; 4937 return;
4638 4938
… …
4649 4949
4650 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4651} 4951}
4652 4952
4653void 4953void
4654ev_async_send (EV_P_ ev_async *w) EV_THROW 4954ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 4955{
4656 w->sent = 1; 4956 w->sent = 1;
4657 evpipe_write (EV_A_ &async_pending); 4957 evpipe_write (EV_A_ &async_pending);
4658} 4958}
4659#endif 4959#endif
… …
4696 4996
4697 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4997 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4698} 4998}
4699 4999
4700void 5000void
4701ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5001ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4702{ 5002{
4703 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5003 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4704 5004
4705 if (expect_false (!once)) 5005 if (expect_false (!once))
4706 { 5006 {
… …
4727} 5027}
4728 5028
4729/*****************************************************************************/ 5029/*****************************************************************************/
4730 5030
4731#if EV_WALK_ENABLE 5031#if EV_WALK_ENABLE
4732void ecb_cold 5032ecb_cold
5033void
4733ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5034ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4734{ 5035{
4735 int i, j; 5036 int i, j;
4736 ev_watcher_list *wl, *wn; 5037 ev_watcher_list *wl, *wn;
4737 5038
4738 if (types & (EV_IO | EV_EMBED)) 5039 if (types & (EV_IO | EV_EMBED))

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