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Comparing libev/ev.c (file contents):
Revision 1.460 by root, Tue Oct 29 12:53:38 2013 UTC vs.
Revision 1.489 by root, Sat Dec 29 14:23:20 2018 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 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 (©) 2009-2012 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 __x86_64 || _M_AMD64 577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 578 #if _ILP32
554 #define ECB_AMD64_X32 1 579 #define ECB_AMD64_X32 1
555 #else 580 #else
556 #define ECB_AMD64 1 581 #define ECB_AMD64 1
557 #endif 582 #endif
… …
562 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 588 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have 589 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place. 590 * an issue with that they should have done it right in the first place.
566 */ 591 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
570 #else 594#else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif 596#endif
573#endif
574 597
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 598#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576#define ECB_C99 (__STDC_VERSION__ >= 199901L) 599
577#define ECB_C11 (__STDC_VERSION__ >= 201112L) 600#if __clang__ && defined __has_builtin
601 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
602#else
603 #define ECB_CLANG_BUILTIN(x) 0
604#endif
605
606#if __clang__ && defined __has_extension
607 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
608#else
609 #define ECB_CLANG_EXTENSION(x) 0
610#endif
611
578#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
614#define ECB_CPP14 (__cplusplus >= 201402L)
615#define ECB_CPP17 (__cplusplus >= 201703L)
616
617#if ECB_CPP
618 #define ECB_C 0
619 #define ECB_STDC_VERSION 0
620#else
621 #define ECB_C 1
622 #define ECB_STDC_VERSION __STDC_VERSION__
623#endif
624
625#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
626#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
627#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
580 628
581#if ECB_CPP 629#if ECB_CPP
582 #define ECB_EXTERN_C extern "C" 630 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 631 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END } 632 #define ECB_EXTERN_C_END }
… …
597 #define ECB_NO_SMP 1 645 #define ECB_NO_SMP 1
598#endif 646#endif
599 647
600#if ECB_NO_SMP 648#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0) 649 #define ECB_MEMORY_FENCE do { } while (0)
650#endif
651
652/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
653#if __xlC__ && ECB_CPP
654 #include <builtins.h>
655#endif
656
657#if 1400 <= _MSC_VER
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
602#endif 659#endif
603 660
604#ifndef ECB_MEMORY_FENCE 661#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
606 #if __i386 || __i386__ 663 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 667 #elif ECB_GCC_AMD64
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 671 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
673 #elif defined __ARM_ARCH_2__ \
674 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
675 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
676 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
677 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
678 || defined __ARM_ARCH_5TEJ__
679 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 680 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 681 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
682 || defined __ARM_ARCH_6T2__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 684 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 685 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
622 #elif __sparc || __sparc__ 687 #elif __aarch64__
688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
689 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__ 693 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
648 715
649#ifndef ECB_MEMORY_FENCE 716#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7) 717 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */ 718 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
653 722
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 723 #elif ECB_CLANG_EXTENSION(c_atomic)
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model. 724 /* see comment below (stdatomic.h) about the C11 memory model. */
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */ 726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
662 728
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize () 730 #define ECB_MEMORY_FENCE __sync_synchronize ()
731 #elif _MSC_VER >= 1500 /* VC++ 2008 */
732 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
733 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
734 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
735 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
736 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
665 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 737 #elif _MSC_VER >= 1400 /* VC++ 2005 */
666 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 738 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
667 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 739 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
668 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 740 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
669 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 741 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
689 /* any fence other than seq_cst, which isn't very efficient for us. */ 761 /* any fence other than seq_cst, which isn't very efficient for us. */
690 /* Why that is, we don't know - either the C11 memory model is quite useless */ 762 /* Why that is, we don't know - either the C11 memory model is quite useless */
691 /* for most usages, or gcc and clang have a bug */ 763 /* for most usages, or gcc and clang have a bug */
692 /* I *currently* lean towards the latter, and inefficiently implement */ 764 /* I *currently* lean towards the latter, and inefficiently implement */
693 /* all three of ecb's fences as a seq_cst fence */ 765 /* all three of ecb's fences as a seq_cst fence */
766 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
767 /* for all __atomic_thread_fence's except seq_cst */
694 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 768 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
695 #endif 769 #endif
696#endif 770#endif
697 771
698#ifndef ECB_MEMORY_FENCE 772#ifndef ECB_MEMORY_FENCE
… …
721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 795 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
722#endif 796#endif
723 797
724/*****************************************************************************/ 798/*****************************************************************************/
725 799
726#if __cplusplus 800#if ECB_CPP
727 #define ecb_inline static inline 801 #define ecb_inline static inline
728#elif ECB_GCC_VERSION(2,5) 802#elif ECB_GCC_VERSION(2,5)
729 #define ecb_inline static __inline__ 803 #define ecb_inline static __inline__
730#elif ECB_C99 804#elif ECB_C99
731 #define ecb_inline static inline 805 #define ecb_inline static inline
… …
745 819
746#define ECB_CONCAT_(a, b) a ## b 820#define ECB_CONCAT_(a, b) a ## b
747#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 821#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
748#define ECB_STRINGIFY_(a) # a 822#define ECB_STRINGIFY_(a) # a
749#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 823#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
824#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
750 825
751#define ecb_function_ ecb_inline 826#define ecb_function_ ecb_inline
752 827
753#if ECB_GCC_VERSION(3,1) 828#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
754 #define ecb_attribute(attrlist) __attribute__(attrlist) 829 #define ecb_attribute(attrlist) __attribute__ (attrlist)
830#else
831 #define ecb_attribute(attrlist)
832#endif
833
834#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
755 #define ecb_is_constant(expr) __builtin_constant_p (expr) 835 #define ecb_is_constant(expr) __builtin_constant_p (expr)
836#else
837 /* possible C11 impl for integral types
838 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
839 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
840
841 #define ecb_is_constant(expr) 0
842#endif
843
844#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
756 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 845 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
846#else
847 #define ecb_expect(expr,value) (expr)
848#endif
849
850#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
757 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 851 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
758#else 852#else
759 #define ecb_attribute(attrlist)
760 #define ecb_is_constant(expr) 0
761 #define ecb_expect(expr,value) (expr)
762 #define ecb_prefetch(addr,rw,locality) 853 #define ecb_prefetch(addr,rw,locality)
763#endif 854#endif
764 855
765/* no emulation for ecb_decltype */ 856/* no emulation for ecb_decltype */
766#if ECB_GCC_VERSION(4,5) 857#if ECB_CPP11
858 // older implementations might have problems with decltype(x)::type, work around it
859 template<class T> struct ecb_decltype_t { typedef T type; };
767 #define ecb_decltype(x) __decltype(x) 860 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
768#elif ECB_GCC_VERSION(3,0) 861#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
769 #define ecb_decltype(x) __typeof(x) 862 #define ecb_decltype(x) __typeof__ (x)
770#endif 863#endif
771 864
865#if _MSC_VER >= 1300
866 #define ecb_deprecated __declspec (deprecated)
867#else
868 #define ecb_deprecated ecb_attribute ((__deprecated__))
869#endif
870
871#if _MSC_VER >= 1500
872 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
873#elif ECB_GCC_VERSION(4,5)
874 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
875#else
876 #define ecb_deprecated_message(msg) ecb_deprecated
877#endif
878
879#if _MSC_VER >= 1400
880 #define ecb_noinline __declspec (noinline)
881#else
772#define ecb_noinline ecb_attribute ((__noinline__)) 882 #define ecb_noinline ecb_attribute ((__noinline__))
883#endif
884
773#define ecb_unused ecb_attribute ((__unused__)) 885#define ecb_unused ecb_attribute ((__unused__))
774#define ecb_const ecb_attribute ((__const__)) 886#define ecb_const ecb_attribute ((__const__))
775#define ecb_pure ecb_attribute ((__pure__)) 887#define ecb_pure ecb_attribute ((__pure__))
776 888
777#if ECB_C11 889#if ECB_C11 || __IBMC_NORETURN
890 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
778 #define ecb_noreturn _Noreturn 891 #define ecb_noreturn _Noreturn
892#elif ECB_CPP11
893 #define ecb_noreturn [[noreturn]]
894#elif _MSC_VER >= 1200
895 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
896 #define ecb_noreturn __declspec (noreturn)
779#else 897#else
780 #define ecb_noreturn ecb_attribute ((__noreturn__)) 898 #define ecb_noreturn ecb_attribute ((__noreturn__))
781#endif 899#endif
782 900
783#if ECB_GCC_VERSION(4,3) 901#if ECB_GCC_VERSION(4,3)
… …
798/* for compatibility to the rest of the world */ 916/* for compatibility to the rest of the world */
799#define ecb_likely(expr) ecb_expect_true (expr) 917#define ecb_likely(expr) ecb_expect_true (expr)
800#define ecb_unlikely(expr) ecb_expect_false (expr) 918#define ecb_unlikely(expr) ecb_expect_false (expr)
801 919
802/* count trailing zero bits and count # of one bits */ 920/* count trailing zero bits and count # of one bits */
803#if ECB_GCC_VERSION(3,4) 921#if ECB_GCC_VERSION(3,4) \
922 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
923 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
924 && ECB_CLANG_BUILTIN(__builtin_popcount))
804 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 925 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
805 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 926 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
806 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 927 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
807 #define ecb_ctz32(x) __builtin_ctz (x) 928 #define ecb_ctz32(x) __builtin_ctz (x)
808 #define ecb_ctz64(x) __builtin_ctzll (x) 929 #define ecb_ctz64(x) __builtin_ctzll (x)
809 #define ecb_popcount32(x) __builtin_popcount (x) 930 #define ecb_popcount32(x) __builtin_popcount (x)
810 /* no popcountll */ 931 /* no popcountll */
811#else 932#else
812 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 933 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
813 ecb_function_ int 934 ecb_function_ ecb_const int
814 ecb_ctz32 (uint32_t x) 935 ecb_ctz32 (uint32_t x)
815 { 936 {
937#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
938 unsigned long r;
939 _BitScanForward (&r, x);
940 return (int)r;
941#else
816 int r = 0; 942 int r = 0;
817 943
818 x &= ~x + 1; /* this isolates the lowest bit */ 944 x &= ~x + 1; /* this isolates the lowest bit */
819 945
820#if ECB_branchless_on_i386 946#if ECB_branchless_on_i386
… …
830 if (x & 0xff00ff00) r += 8; 956 if (x & 0xff00ff00) r += 8;
831 if (x & 0xffff0000) r += 16; 957 if (x & 0xffff0000) r += 16;
832#endif 958#endif
833 959
834 return r; 960 return r;
961#endif
835 } 962 }
836 963
837 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 964 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
838 ecb_function_ int 965 ecb_function_ ecb_const int
839 ecb_ctz64 (uint64_t x) 966 ecb_ctz64 (uint64_t x)
840 { 967 {
968#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
969 unsigned long r;
970 _BitScanForward64 (&r, x);
971 return (int)r;
972#else
841 int shift = x & 0xffffffffU ? 0 : 32; 973 int shift = x & 0xffffffff ? 0 : 32;
842 return ecb_ctz32 (x >> shift) + shift; 974 return ecb_ctz32 (x >> shift) + shift;
975#endif
843 } 976 }
844 977
845 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 978 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
846 ecb_function_ int 979 ecb_function_ ecb_const int
847 ecb_popcount32 (uint32_t x) 980 ecb_popcount32 (uint32_t x)
848 { 981 {
849 x -= (x >> 1) & 0x55555555; 982 x -= (x >> 1) & 0x55555555;
850 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 983 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
851 x = ((x >> 4) + x) & 0x0f0f0f0f; 984 x = ((x >> 4) + x) & 0x0f0f0f0f;
852 x *= 0x01010101; 985 x *= 0x01010101;
853 986
854 return x >> 24; 987 return x >> 24;
855 } 988 }
856 989
857 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 990 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
858 ecb_function_ int ecb_ld32 (uint32_t x) 991 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
859 { 992 {
993#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanReverse (&r, x);
996 return (int)r;
997#else
860 int r = 0; 998 int r = 0;
861 999
862 if (x >> 16) { x >>= 16; r += 16; } 1000 if (x >> 16) { x >>= 16; r += 16; }
863 if (x >> 8) { x >>= 8; r += 8; } 1001 if (x >> 8) { x >>= 8; r += 8; }
864 if (x >> 4) { x >>= 4; r += 4; } 1002 if (x >> 4) { x >>= 4; r += 4; }
865 if (x >> 2) { x >>= 2; r += 2; } 1003 if (x >> 2) { x >>= 2; r += 2; }
866 if (x >> 1) { r += 1; } 1004 if (x >> 1) { r += 1; }
867 1005
868 return r; 1006 return r;
1007#endif
869 } 1008 }
870 1009
871 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1010 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
872 ecb_function_ int ecb_ld64 (uint64_t x) 1011 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
873 { 1012 {
1013#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1014 unsigned long r;
1015 _BitScanReverse64 (&r, x);
1016 return (int)r;
1017#else
874 int r = 0; 1018 int r = 0;
875 1019
876 if (x >> 32) { x >>= 32; r += 32; } 1020 if (x >> 32) { x >>= 32; r += 32; }
877 1021
878 return r + ecb_ld32 (x); 1022 return r + ecb_ld32 (x);
1023#endif
879 } 1024 }
880#endif 1025#endif
881 1026
882ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1027ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
883ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1028ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
884ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1029ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
885ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1030ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886 1031
887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1032ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1033ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
889{ 1034{
890 return ( (x * 0x0802U & 0x22110U) 1035 return ( (x * 0x0802U & 0x22110U)
891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1036 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
892} 1037}
893 1038
894ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1039ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
895ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1040ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
896{ 1041{
897 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1042 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
898 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1043 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
899 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1044 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
900 x = ( x >> 8 ) | ( x << 8); 1045 x = ( x >> 8 ) | ( x << 8);
901 1046
902 return x; 1047 return x;
903} 1048}
904 1049
905ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1050ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
906ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1051ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
907{ 1052{
908 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1053 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
909 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1054 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
910 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1055 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
911 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1056 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
914 return x; 1059 return x;
915} 1060}
916 1061
917/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1062/* popcount64 is only available on 64 bit cpus as gcc builtin */
918/* so for this version we are lazy */ 1063/* so for this version we are lazy */
919ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1064ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
920ecb_function_ int 1065ecb_function_ ecb_const int
921ecb_popcount64 (uint64_t x) 1066ecb_popcount64 (uint64_t x)
922{ 1067{
923 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1068 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
924} 1069}
925 1070
926ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1071ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
927ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1072ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
928ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1073ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
929ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1074ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
930ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1075ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
931ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1076ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
932ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1077ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
933ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1078ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
934 1079
935ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1080ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
936ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1081ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
937ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1082ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
938ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1083ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
939ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1084ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
940ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1085ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
941ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1086ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
942ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
943 1088
944#if ECB_GCC_VERSION(4,3) 1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else
945 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1094 #endif
946 #define ecb_bswap32(x) __builtin_bswap32 (x) 1095 #define ecb_bswap32(x) __builtin_bswap32 (x)
947 #define ecb_bswap64(x) __builtin_bswap64 (x) 1096 #define ecb_bswap64(x) __builtin_bswap64 (x)
1097#elif _MSC_VER
1098 #include <stdlib.h>
1099 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1100 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1101 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
948#else 1102#else
949 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1103 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
950 ecb_function_ uint16_t 1104 ecb_function_ ecb_const uint16_t
951 ecb_bswap16 (uint16_t x) 1105 ecb_bswap16 (uint16_t x)
952 { 1106 {
953 return ecb_rotl16 (x, 8); 1107 return ecb_rotl16 (x, 8);
954 } 1108 }
955 1109
956 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1110 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
957 ecb_function_ uint32_t 1111 ecb_function_ ecb_const uint32_t
958 ecb_bswap32 (uint32_t x) 1112 ecb_bswap32 (uint32_t x)
959 { 1113 {
960 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1114 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
961 } 1115 }
962 1116
963 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1117 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
964 ecb_function_ uint64_t 1118 ecb_function_ ecb_const uint64_t
965 ecb_bswap64 (uint64_t x) 1119 ecb_bswap64 (uint64_t x)
966 { 1120 {
967 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1121 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
968 } 1122 }
969#endif 1123#endif
970 1124
971#if ECB_GCC_VERSION(4,5) 1125#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
972 #define ecb_unreachable() __builtin_unreachable () 1126 #define ecb_unreachable() __builtin_unreachable ()
973#else 1127#else
974 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1128 /* this seems to work fine, but gcc always emits a warning for it :/ */
975 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1129 ecb_inline ecb_noreturn void ecb_unreachable (void);
976 ecb_inline void ecb_unreachable (void) { } 1130 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
977#endif 1131#endif
978 1132
979/* try to tell the compiler that some condition is definitely true */ 1133/* try to tell the compiler that some condition is definitely true */
980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1134#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
981 1135
982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1136ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
983ecb_inline unsigned char 1137ecb_inline ecb_const uint32_t
984ecb_byteorder_helper (void) 1138ecb_byteorder_helper (void)
985{ 1139{
986 /* the union code still generates code under pressure in gcc, */ 1140 /* the union code still generates code under pressure in gcc, */
987 /* but less than using pointers, and always seems to */ 1141 /* but less than using pointers, and always seems to */
988 /* successfully return a constant. */ 1142 /* successfully return a constant. */
989 /* the reason why we have this horrible preprocessor mess */ 1143 /* the reason why we have this horrible preprocessor mess */
990 /* is to avoid it in all cases, at least on common architectures */ 1144 /* is to avoid it in all cases, at least on common architectures */
991 /* or when using a recent enough gcc version (>= 4.6) */ 1145 /* or when using a recent enough gcc version (>= 4.6) */
992#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
993 return 0x44;
994#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1146#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1147 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1148 #define ECB_LITTLE_ENDIAN 1
995 return 0x44; 1149 return 0x44332211;
996#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1150#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1151 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1152 #define ECB_BIG_ENDIAN 1
997 return 0x11; 1153 return 0x11223344;
998#else 1154#else
999 union 1155 union
1000 { 1156 {
1157 uint8_t c[4];
1001 uint32_t i; 1158 uint32_t u;
1002 uint8_t c;
1003 } u = { 0x11223344 }; 1159 } u = { 0x11, 0x22, 0x33, 0x44 };
1004 return u.c; 1160 return u.u;
1005#endif 1161#endif
1006} 1162}
1007 1163
1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1164ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1009ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1166ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1011ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1012 1168
1013#if ECB_GCC_VERSION(3,0) || ECB_C99 1169#if ECB_GCC_VERSION(3,0) || ECB_C99
1014 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1015#else 1171#else
1016 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1017#endif 1173#endif
1018 1174
1019#if __cplusplus 1175#if ECB_CPP
1020 template<typename T> 1176 template<typename T>
1021 static inline T ecb_div_rd (T val, T div) 1177 static inline T ecb_div_rd (T val, T div)
1022 { 1178 {
1023 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1179 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1024 } 1180 }
… …
1041 } 1197 }
1042#else 1198#else
1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1044#endif 1200#endif
1045 1201
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x)
1205{
1206 unsigned int s = (x & 0x8000) << (31 - 15);
1207 int e = (x >> 10) & 0x001f;
1208 unsigned int m = x & 0x03ff;
1209
1210 if (ecb_expect_false (e == 31))
1211 /* infinity or NaN */
1212 e = 255 - (127 - 15);
1213 else if (ecb_expect_false (!e))
1214 {
1215 if (ecb_expect_true (!m))
1216 /* zero, handled by code below by forcing e to 0 */
1217 e = 0 - (127 - 15);
1218 else
1219 {
1220 /* subnormal, renormalise */
1221 unsigned int s = 10 - ecb_ld32 (m);
1222
1223 m = (m << s) & 0x3ff; /* mask implicit bit */
1224 e -= s - 1;
1225 }
1226 }
1227
1228 /* e and m now are normalised, or zero, (or inf or nan) */
1229 e += 127 - 15;
1230
1231 return s | (e << 23) | (m << (23 - 10));
1232}
1233
1234ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1235ecb_function_ ecb_const uint16_t
1236ecb_binary32_to_binary16 (uint32_t x)
1237{
1238 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1239 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1240 unsigned int m = x & 0x007fffff;
1241
1242 x &= 0x7fffffff;
1243
1244 /* if it's within range of binary16 normals, use fast path */
1245 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1246 {
1247 /* mantissa round-to-even */
1248 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1249
1250 /* handle overflow */
1251 if (ecb_expect_false (m >= 0x00800000))
1252 {
1253 m >>= 1;
1254 e += 1;
1255 }
1256
1257 return s | (e << 10) | (m >> (23 - 10));
1258 }
1259
1260 /* handle large numbers and infinity */
1261 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1262 return s | 0x7c00;
1263
1264 /* handle zero, subnormals and small numbers */
1265 if (ecb_expect_true (x < 0x38800000))
1266 {
1267 /* zero */
1268 if (ecb_expect_true (!x))
1269 return s;
1270
1271 /* handle subnormals */
1272
1273 /* too small, will be zero */
1274 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1275 return s;
1276
1277 m |= 0x00800000; /* make implicit bit explicit */
1278
1279 /* very tricky - we need to round to the nearest e (+10) bit value */
1280 {
1281 unsigned int bits = 14 - e;
1282 unsigned int half = (1 << (bits - 1)) - 1;
1283 unsigned int even = (m >> bits) & 1;
1284
1285 /* if this overflows, we will end up with a normalised number */
1286 m = (m + half + even) >> bits;
1287 }
1288
1289 return s | m;
1290 }
1291
1292 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1293 m >>= 13;
1294
1295 return s | 0x7c00 | m | !m;
1296}
1297
1046/*******************************************************************************/ 1298/*******************************************************************************/
1047/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1299/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1048 1300
1049/* basically, everything uses "ieee pure-endian" floating point numbers */ 1301/* basically, everything uses "ieee pure-endian" floating point numbers */
1050/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1302/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051#if 0 \ 1303#if 0 \
1052 || __i386 || __i386__ \ 1304 || __i386 || __i386__ \
1053 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1305 || ECB_GCC_AMD64 \
1054 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1306 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1055 || defined __arm__ && defined __ARM_EABI__ \
1056 || defined __s390__ || defined __s390x__ \ 1307 || defined __s390__ || defined __s390x__ \
1057 || defined __mips__ \ 1308 || defined __mips__ \
1058 || defined __alpha__ \ 1309 || defined __alpha__ \
1059 || defined __hppa__ \ 1310 || defined __hppa__ \
1060 || defined __ia64__ \ 1311 || defined __ia64__ \
1061 || defined __m68k__ \ 1312 || defined __m68k__ \
1062 || defined __m88k__ \ 1313 || defined __m88k__ \
1063 || defined __sh__ \ 1314 || defined __sh__ \
1064 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1315 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1316 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1317 || defined __aarch64__
1065 #define ECB_STDFP 1 1318 #define ECB_STDFP 1
1066 #include <string.h> /* for memcpy */ 1319 #include <string.h> /* for memcpy */
1067#else 1320#else
1068 #define ECB_STDFP 0 1321 #define ECB_STDFP 0
1069#endif 1322#endif
1070 1323
1071#ifndef ECB_NO_LIBM 1324#ifndef ECB_NO_LIBM
1072 1325
1073 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ 1326 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1074 1327
1328 /* only the oldest of old doesn't have this one. solaris. */
1329 #ifdef INFINITY
1330 #define ECB_INFINITY INFINITY
1331 #else
1332 #define ECB_INFINITY HUGE_VAL
1333 #endif
1334
1075 #ifdef NEN 1335 #ifdef NAN
1076 #define ECB_NAN NAN 1336 #define ECB_NAN NAN
1077 #else 1337 #else
1078 #define ECB_NAN INFINITY 1338 #define ECB_NAN ECB_INFINITY
1079 #endif 1339 #endif
1080 1340
1081 /* converts an ieee half/binary16 to a float */ 1341 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1082 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1342 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1083 ecb_function_ float 1343 #define ecb_frexpf(x,e) frexpf ((x), (e))
1084 ecb_binary16_to_float (uint16_t x) 1344 #else
1085 { 1345 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1086 int e = (x >> 10) & 0x1f; 1346 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1087 int m = x & 0x3ff; 1347 #endif
1088 float r;
1089
1090 if (!e ) r = ldexpf (m , -24);
1091 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1092 else if (m ) r = ECB_NAN;
1093 else r = INFINITY;
1094
1095 return x & 0x8000 ? -r : r;
1096 }
1097 1348
1098 /* convert a float to ieee single/binary32 */ 1349 /* convert a float to ieee single/binary32 */
1099 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1350 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1100 ecb_function_ uint32_t 1351 ecb_function_ ecb_const uint32_t
1101 ecb_float_to_binary32 (float x) 1352 ecb_float_to_binary32 (float x)
1102 { 1353 {
1103 uint32_t r; 1354 uint32_t r;
1104 1355
1105 #if ECB_STDFP 1356 #if ECB_STDFP
… …
1112 if (x == 0e0f ) return 0x00000000U; 1363 if (x == 0e0f ) return 0x00000000U;
1113 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1364 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1114 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1365 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1115 if (x != x ) return 0x7fbfffffU; 1366 if (x != x ) return 0x7fbfffffU;
1116 1367
1117 m = frexpf (x, &e) * 0x1000000U; 1368 m = ecb_frexpf (x, &e) * 0x1000000U;
1118 1369
1119 r = m & 0x80000000U; 1370 r = m & 0x80000000U;
1120 1371
1121 if (r) 1372 if (r)
1122 m = -m; 1373 m = -m;
… …
1134 1385
1135 return r; 1386 return r;
1136 } 1387 }
1137 1388
1138 /* converts an ieee single/binary32 to a float */ 1389 /* converts an ieee single/binary32 to a float */
1139 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1390 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1140 ecb_function_ float 1391 ecb_function_ ecb_const float
1141 ecb_binary32_to_float (uint32_t x) 1392 ecb_binary32_to_float (uint32_t x)
1142 { 1393 {
1143 float r; 1394 float r;
1144 1395
1145 #if ECB_STDFP 1396 #if ECB_STDFP
… …
1155 x |= 0x800000U; 1406 x |= 0x800000U;
1156 else 1407 else
1157 e = 1; 1408 e = 1;
1158 1409
1159 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1410 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1160 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1411 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1161 1412
1162 r = neg ? -r : r; 1413 r = neg ? -r : r;
1163 #endif 1414 #endif
1164 1415
1165 return r; 1416 return r;
1166 } 1417 }
1167 1418
1168 /* convert a double to ieee double/binary64 */ 1419 /* convert a double to ieee double/binary64 */
1169 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1420 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1170 ecb_function_ uint64_t 1421 ecb_function_ ecb_const uint64_t
1171 ecb_double_to_binary64 (double x) 1422 ecb_double_to_binary64 (double x)
1172 { 1423 {
1173 uint64_t r; 1424 uint64_t r;
1174 1425
1175 #if ECB_STDFP 1426 #if ECB_STDFP
… …
1204 1455
1205 return r; 1456 return r;
1206 } 1457 }
1207 1458
1208 /* converts an ieee double/binary64 to a double */ 1459 /* converts an ieee double/binary64 to a double */
1209 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1460 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1210 ecb_function_ double 1461 ecb_function_ ecb_const double
1211 ecb_binary64_to_double (uint64_t x) 1462 ecb_binary64_to_double (uint64_t x)
1212 { 1463 {
1213 double r; 1464 double r;
1214 1465
1215 #if ECB_STDFP 1466 #if ECB_STDFP
… …
1231 1482
1232 r = neg ? -r : r; 1483 r = neg ? -r : r;
1233 #endif 1484 #endif
1234 1485
1235 return r; 1486 return r;
1487 }
1488
1489 /* convert a float to ieee half/binary16 */
1490 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1491 ecb_function_ ecb_const uint16_t
1492 ecb_float_to_binary16 (float x)
1493 {
1494 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1495 }
1496
1497 /* convert an ieee half/binary16 to float */
1498 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1499 ecb_function_ ecb_const float
1500 ecb_binary16_to_float (uint16_t x)
1501 {
1502 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1236 } 1503 }
1237 1504
1238#endif 1505#endif
1239 1506
1240#endif 1507#endif
… …
1265#define inline_size ecb_inline 1532#define inline_size ecb_inline
1266 1533
1267#if EV_FEATURE_CODE 1534#if EV_FEATURE_CODE
1268# define inline_speed ecb_inline 1535# define inline_speed ecb_inline
1269#else 1536#else
1270# define inline_speed static noinline 1537# define inline_speed noinline static
1271#endif 1538#endif
1272 1539
1273#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1274 1541
1275#if EV_MINPRI == EV_MAXPRI 1542#if EV_MINPRI == EV_MAXPRI
… …
1322#else 1589#else
1323 1590
1324#include <float.h> 1591#include <float.h>
1325 1592
1326/* a floor() replacement function, should be independent of ev_tstamp type */ 1593/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline
1327static ev_tstamp noinline 1595static ev_tstamp
1328ev_floor (ev_tstamp v) 1596ev_floor (ev_tstamp v)
1329{ 1597{
1330 /* the choice of shift factor is not terribly important */ 1598 /* the choice of shift factor is not terribly important */
1331#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1332 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1364 1632
1365#ifdef __linux 1633#ifdef __linux
1366# include <sys/utsname.h> 1634# include <sys/utsname.h>
1367#endif 1635#endif
1368 1636
1369static unsigned int noinline ecb_cold 1637noinline ecb_cold
1638static unsigned int
1370ev_linux_version (void) 1639ev_linux_version (void)
1371{ 1640{
1372#ifdef __linux 1641#ifdef __linux
1373 unsigned int v = 0; 1642 unsigned int v = 0;
1374 struct utsname buf; 1643 struct utsname buf;
… …
1403} 1672}
1404 1673
1405/*****************************************************************************/ 1674/*****************************************************************************/
1406 1675
1407#if EV_AVOID_STDIO 1676#if EV_AVOID_STDIO
1408static void noinline ecb_cold 1677noinline ecb_cold
1678static void
1409ev_printerr (const char *msg) 1679ev_printerr (const char *msg)
1410{ 1680{
1411 write (STDERR_FILENO, msg, strlen (msg)); 1681 write (STDERR_FILENO, msg, strlen (msg));
1412} 1682}
1413#endif 1683#endif
1414 1684
1415static void (*syserr_cb)(const char *msg) EV_THROW; 1685static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1416 1686
1417void ecb_cold 1687ecb_cold
1688void
1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1419{ 1690{
1420 syserr_cb = cb; 1691 syserr_cb = cb;
1421} 1692}
1422 1693
1423static void noinline ecb_cold 1694noinline ecb_cold
1695static void
1424ev_syserr (const char *msg) 1696ev_syserr (const char *msg)
1425{ 1697{
1426 if (!msg) 1698 if (!msg)
1427 msg = "(libev) system error"; 1699 msg = "(libev) system error";
1428 1700
… …
1441 abort (); 1713 abort ();
1442 } 1714 }
1443} 1715}
1444 1716
1445static void * 1717static void *
1446ev_realloc_emul (void *ptr, long size) EV_THROW 1718ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1447{ 1719{
1448 /* some systems, notably openbsd and darwin, fail to properly 1720 /* some systems, notably openbsd and darwin, fail to properly
1449 * implement realloc (x, 0) (as required by both ansi c-89 and 1721 * implement realloc (x, 0) (as required by both ansi c-89 and
1450 * the single unix specification, so work around them here. 1722 * the single unix specification, so work around them here.
1451 * recently, also (at least) fedora and debian started breaking it, 1723 * recently, also (at least) fedora and debian started breaking it,
… …
1457 1729
1458 free (ptr); 1730 free (ptr);
1459 return 0; 1731 return 0;
1460} 1732}
1461 1733
1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1734static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1463 1735
1464void ecb_cold 1736ecb_cold
1737void
1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1738ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1466{ 1739{
1467 alloc = cb; 1740 alloc = cb;
1468} 1741}
1469 1742
1470inline_speed void * 1743inline_speed void *
… …
1587 1860
1588/*****************************************************************************/ 1861/*****************************************************************************/
1589 1862
1590#ifndef EV_HAVE_EV_TIME 1863#ifndef EV_HAVE_EV_TIME
1591ev_tstamp 1864ev_tstamp
1592ev_time (void) EV_THROW 1865ev_time (void) EV_NOEXCEPT
1593{ 1866{
1594#if EV_USE_REALTIME 1867#if EV_USE_REALTIME
1595 if (expect_true (have_realtime)) 1868 if (expect_true (have_realtime))
1596 { 1869 {
1597 struct timespec ts; 1870 struct timespec ts;
… …
1621 return ev_time (); 1894 return ev_time ();
1622} 1895}
1623 1896
1624#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1625ev_tstamp 1898ev_tstamp
1626ev_now (EV_P) EV_THROW 1899ev_now (EV_P) EV_NOEXCEPT
1627{ 1900{
1628 return ev_rt_now; 1901 return ev_rt_now;
1629} 1902}
1630#endif 1903#endif
1631 1904
1632void 1905void
1633ev_sleep (ev_tstamp delay) EV_THROW 1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1634{ 1907{
1635 if (delay > 0.) 1908 if (delay > 0.)
1636 { 1909 {
1637#if EV_USE_NANOSLEEP 1910#if EV_USE_NANOSLEEP
1638 struct timespec ts; 1911 struct timespec ts;
1639 1912
1640 EV_TS_SET (ts, delay); 1913 EV_TS_SET (ts, delay);
1641 nanosleep (&ts, 0); 1914 nanosleep (&ts, 0);
1642#elif defined _WIN32 1915#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */
1643 Sleep ((unsigned long)(delay * 1e3)); 1918 Sleep ((unsigned long)(delay * 1e3));
1644#else 1919#else
1645 struct timeval tv; 1920 struct timeval tv;
1646 1921
1647 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1678 } 1953 }
1679 1954
1680 return ncur; 1955 return ncur;
1681} 1956}
1682 1957
1683static void * noinline ecb_cold 1958noinline ecb_cold
1959static void *
1684array_realloc (int elem, void *base, int *cur, int cnt) 1960array_realloc (int elem, void *base, int *cur, int cnt)
1685{ 1961{
1686 *cur = array_nextsize (elem, *cur, cnt); 1962 *cur = array_nextsize (elem, *cur, cnt);
1687 return ev_realloc (base, elem * *cur); 1963 return ev_realloc (base, elem * *cur);
1688} 1964}
… …
1691 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1967 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1692 1968
1693#define array_needsize(type,base,cur,cnt,init) \ 1969#define array_needsize(type,base,cur,cnt,init) \
1694 if (expect_false ((cnt) > (cur))) \ 1970 if (expect_false ((cnt) > (cur))) \
1695 { \ 1971 { \
1696 int ecb_unused ocur_ = (cur); \ 1972 ecb_unused int ocur_ = (cur); \
1697 (base) = (type *)array_realloc \ 1973 (base) = (type *)array_realloc \
1698 (sizeof (type), (base), &(cur), (cnt)); \ 1974 (sizeof (type), (base), &(cur), (cnt)); \
1699 init ((base) + (ocur_), (cur) - ocur_); \ 1975 init ((base) + (ocur_), (cur) - ocur_); \
1700 } 1976 }
1701 1977
… …
1713 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1714 1990
1715/*****************************************************************************/ 1991/*****************************************************************************/
1716 1992
1717/* dummy callback for pending events */ 1993/* dummy callback for pending events */
1718static void noinline 1994noinline
1995static void
1719pendingcb (EV_P_ ev_prepare *w, int revents) 1996pendingcb (EV_P_ ev_prepare *w, int revents)
1720{ 1997{
1721} 1998}
1722 1999
1723void noinline 2000noinline
2001void
1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1725{ 2003{
1726 W w_ = (W)w; 2004 W w_ = (W)w;
1727 int pri = ABSPRI (w_); 2005 int pri = ABSPRI (w_);
1728 2006
1729 if (expect_false (w_->pending)) 2007 if (expect_false (w_->pending))
… …
1790 if (expect_true (!anfd->reify)) 2068 if (expect_true (!anfd->reify))
1791 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
1792} 2070}
1793 2071
1794void 2072void
1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1796{ 2074{
1797 if (fd >= 0 && fd < anfdmax) 2075 if (fd >= 0 && fd < anfdmax)
1798 fd_event_nocheck (EV_A_ fd, revents); 2076 fd_event_nocheck (EV_A_ fd, revents);
1799} 2077}
1800 2078
… …
1858 2136
1859 fdchangecnt = 0; 2137 fdchangecnt = 0;
1860} 2138}
1861 2139
1862/* something about the given fd changed */ 2140/* something about the given fd changed */
1863inline_size void 2141inline_size
2142void
1864fd_change (EV_P_ int fd, int flags) 2143fd_change (EV_P_ int fd, int flags)
1865{ 2144{
1866 unsigned char reify = anfds [fd].reify; 2145 unsigned char reify = anfds [fd].reify;
1867 anfds [fd].reify |= flags; 2146 anfds [fd].reify |= flags;
1868 2147
… …
1873 fdchanges [fdchangecnt - 1] = fd; 2152 fdchanges [fdchangecnt - 1] = fd;
1874 } 2153 }
1875} 2154}
1876 2155
1877/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1878inline_speed void ecb_cold 2157inline_speed ecb_cold void
1879fd_kill (EV_P_ int fd) 2158fd_kill (EV_P_ int fd)
1880{ 2159{
1881 ev_io *w; 2160 ev_io *w;
1882 2161
1883 while ((w = (ev_io *)anfds [fd].head)) 2162 while ((w = (ev_io *)anfds [fd].head))
… …
1886 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2165 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1887 } 2166 }
1888} 2167}
1889 2168
1890/* check whether the given fd is actually valid, for error recovery */ 2169/* check whether the given fd is actually valid, for error recovery */
1891inline_size int ecb_cold 2170inline_size ecb_cold int
1892fd_valid (int fd) 2171fd_valid (int fd)
1893{ 2172{
1894#ifdef _WIN32 2173#ifdef _WIN32
1895 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2174 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1896#else 2175#else
1897 return fcntl (fd, F_GETFD) != -1; 2176 return fcntl (fd, F_GETFD) != -1;
1898#endif 2177#endif
1899} 2178}
1900 2179
1901/* called on EBADF to verify fds */ 2180/* called on EBADF to verify fds */
1902static void noinline ecb_cold 2181noinline ecb_cold
2182static void
1903fd_ebadf (EV_P) 2183fd_ebadf (EV_P)
1904{ 2184{
1905 int fd; 2185 int fd;
1906 2186
1907 for (fd = 0; fd < anfdmax; ++fd) 2187 for (fd = 0; fd < anfdmax; ++fd)
… …
1909 if (!fd_valid (fd) && errno == EBADF) 2189 if (!fd_valid (fd) && errno == EBADF)
1910 fd_kill (EV_A_ fd); 2190 fd_kill (EV_A_ fd);
1911} 2191}
1912 2192
1913/* called on ENOMEM in select/poll to kill some fds and retry */ 2193/* called on ENOMEM in select/poll to kill some fds and retry */
1914static void noinline ecb_cold 2194noinline ecb_cold
2195static void
1915fd_enomem (EV_P) 2196fd_enomem (EV_P)
1916{ 2197{
1917 int fd; 2198 int fd;
1918 2199
1919 for (fd = anfdmax; fd--; ) 2200 for (fd = anfdmax; fd--; )
… …
1923 break; 2204 break;
1924 } 2205 }
1925} 2206}
1926 2207
1927/* usually called after fork if backend needs to re-arm all fds from scratch */ 2208/* usually called after fork if backend needs to re-arm all fds from scratch */
1928static void noinline 2209noinline
2210static void
1929fd_rearm_all (EV_P) 2211fd_rearm_all (EV_P)
1930{ 2212{
1931 int fd; 2213 int fd;
1932 2214
1933 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
2114 2396
2115/*****************************************************************************/ 2397/*****************************************************************************/
2116 2398
2117#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2118 2400
2119static void noinline ecb_cold 2401noinline ecb_cold
2402static void
2120evpipe_init (EV_P) 2403evpipe_init (EV_P)
2121{ 2404{
2122 if (!ev_is_active (&pipe_w)) 2405 if (!ev_is_active (&pipe_w))
2123 { 2406 {
2124 int fds [2]; 2407 int fds [2];
… …
2195#endif 2478#endif
2196 { 2479 {
2197#ifdef _WIN32 2480#ifdef _WIN32
2198 WSABUF buf; 2481 WSABUF buf;
2199 DWORD sent; 2482 DWORD sent;
2200 buf.buf = &buf; 2483 buf.buf = (char *)&buf;
2201 buf.len = 1; 2484 buf.len = 1;
2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2485 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2203#else 2486#else
2204 write (evpipe [1], &(evpipe [1]), 1); 2487 write (evpipe [1], &(evpipe [1]), 1);
2205#endif 2488#endif
… …
2277} 2560}
2278 2561
2279/*****************************************************************************/ 2562/*****************************************************************************/
2280 2563
2281void 2564void
2282ev_feed_signal (int signum) EV_THROW 2565ev_feed_signal (int signum) EV_NOEXCEPT
2283{ 2566{
2284#if EV_MULTIPLICITY 2567#if EV_MULTIPLICITY
2285 EV_P; 2568 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE; 2569 ECB_MEMORY_FENCE_ACQUIRE;
2287 EV_A = signals [signum - 1].loop; 2570 EV_A = signals [signum - 1].loop;
… …
2302#endif 2585#endif
2303 2586
2304 ev_feed_signal (signum); 2587 ev_feed_signal (signum);
2305} 2588}
2306 2589
2307void noinline 2590noinline
2591void
2308ev_feed_signal_event (EV_P_ int signum) EV_THROW 2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2309{ 2593{
2310 WL w; 2594 WL w;
2311 2595
2312 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2596 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2313 return; 2597 return;
… …
2429#endif 2713#endif
2430#if EV_USE_SELECT 2714#if EV_USE_SELECT
2431# include "ev_select.c" 2715# include "ev_select.c"
2432#endif 2716#endif
2433 2717
2434int ecb_cold 2718ecb_cold int
2435ev_version_major (void) EV_THROW 2719ev_version_major (void) EV_NOEXCEPT
2436{ 2720{
2437 return EV_VERSION_MAJOR; 2721 return EV_VERSION_MAJOR;
2438} 2722}
2439 2723
2440int ecb_cold 2724ecb_cold int
2441ev_version_minor (void) EV_THROW 2725ev_version_minor (void) EV_NOEXCEPT
2442{ 2726{
2443 return EV_VERSION_MINOR; 2727 return EV_VERSION_MINOR;
2444} 2728}
2445 2729
2446/* return true if we are running with elevated privileges and should ignore env variables */ 2730/* return true if we are running with elevated privileges and should ignore env variables */
2447int inline_size ecb_cold 2731inline_size ecb_cold int
2448enable_secure (void) 2732enable_secure (void)
2449{ 2733{
2450#ifdef _WIN32 2734#ifdef _WIN32
2451 return 0; 2735 return 0;
2452#else 2736#else
2453 return getuid () != geteuid () 2737 return getuid () != geteuid ()
2454 || getgid () != getegid (); 2738 || getgid () != getegid ();
2455#endif 2739#endif
2456} 2740}
2457 2741
2458unsigned int ecb_cold 2742ecb_cold
2743unsigned int
2459ev_supported_backends (void) EV_THROW 2744ev_supported_backends (void) EV_NOEXCEPT
2460{ 2745{
2461 unsigned int flags = 0; 2746 unsigned int flags = 0;
2462 2747
2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2467 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2468 2753
2469 return flags; 2754 return flags;
2470} 2755}
2471 2756
2472unsigned int ecb_cold 2757ecb_cold
2758unsigned int
2473ev_recommended_backends (void) EV_THROW 2759ev_recommended_backends (void) EV_NOEXCEPT
2474{ 2760{
2475 unsigned int flags = ev_supported_backends (); 2761 unsigned int flags = ev_supported_backends ();
2476 2762
2477#ifndef __NetBSD__ 2763#ifndef __NetBSD__
2478 /* kqueue is borked on everything but netbsd apparently */ 2764 /* kqueue is borked on everything but netbsd apparently */
… …
2489#endif 2775#endif
2490 2776
2491 return flags; 2777 return flags;
2492} 2778}
2493 2779
2494unsigned int ecb_cold 2780ecb_cold
2781unsigned int
2495ev_embeddable_backends (void) EV_THROW 2782ev_embeddable_backends (void) EV_NOEXCEPT
2496{ 2783{
2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2498 2785
2499 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2500 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2502 2789
2503 return flags; 2790 return flags;
2504} 2791}
2505 2792
2506unsigned int 2793unsigned int
2507ev_backend (EV_P) EV_THROW 2794ev_backend (EV_P) EV_NOEXCEPT
2508{ 2795{
2509 return backend; 2796 return backend;
2510} 2797}
2511 2798
2512#if EV_FEATURE_API 2799#if EV_FEATURE_API
2513unsigned int 2800unsigned int
2514ev_iteration (EV_P) EV_THROW 2801ev_iteration (EV_P) EV_NOEXCEPT
2515{ 2802{
2516 return loop_count; 2803 return loop_count;
2517} 2804}
2518 2805
2519unsigned int 2806unsigned int
2520ev_depth (EV_P) EV_THROW 2807ev_depth (EV_P) EV_NOEXCEPT
2521{ 2808{
2522 return loop_depth; 2809 return loop_depth;
2523} 2810}
2524 2811
2525void 2812void
2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2813ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2527{ 2814{
2528 io_blocktime = interval; 2815 io_blocktime = interval;
2529} 2816}
2530 2817
2531void 2818void
2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2819ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2533{ 2820{
2534 timeout_blocktime = interval; 2821 timeout_blocktime = interval;
2535} 2822}
2536 2823
2537void 2824void
2538ev_set_userdata (EV_P_ void *data) EV_THROW 2825ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2539{ 2826{
2540 userdata = data; 2827 userdata = data;
2541} 2828}
2542 2829
2543void * 2830void *
2544ev_userdata (EV_P) EV_THROW 2831ev_userdata (EV_P) EV_NOEXCEPT
2545{ 2832{
2546 return userdata; 2833 return userdata;
2547} 2834}
2548 2835
2549void 2836void
2550ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2837ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2551{ 2838{
2552 invoke_cb = invoke_pending_cb; 2839 invoke_cb = invoke_pending_cb;
2553} 2840}
2554 2841
2555void 2842void
2556ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2843ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2557{ 2844{
2558 release_cb = release; 2845 release_cb = release;
2559 acquire_cb = acquire; 2846 acquire_cb = acquire;
2560} 2847}
2561#endif 2848#endif
2562 2849
2563/* initialise a loop structure, must be zero-initialised */ 2850/* initialise a loop structure, must be zero-initialised */
2564static void noinline ecb_cold 2851noinline ecb_cold
2852static void
2565loop_init (EV_P_ unsigned int flags) EV_THROW 2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2566{ 2854{
2567 if (!backend) 2855 if (!backend)
2568 { 2856 {
2569 origflags = flags; 2857 origflags = flags;
2570 2858
… …
2656#endif 2944#endif
2657 } 2945 }
2658} 2946}
2659 2947
2660/* free up a loop structure */ 2948/* free up a loop structure */
2661void ecb_cold 2949ecb_cold
2950void
2662ev_loop_destroy (EV_P) 2951ev_loop_destroy (EV_P)
2663{ 2952{
2664 int i; 2953 int i;
2665 2954
2666#if EV_MULTIPLICITY 2955#if EV_MULTIPLICITY
… …
2787#if EV_USE_INOTIFY 3076#if EV_USE_INOTIFY
2788 infy_fork (EV_A); 3077 infy_fork (EV_A);
2789#endif 3078#endif
2790 3079
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2792 if (ev_is_active (&pipe_w)) 3081 if (ev_is_active (&pipe_w) && postfork != 2)
2793 { 3082 {
2794 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2795 3084
2796 ev_ref (EV_A); 3085 ev_ref (EV_A);
2797 ev_io_stop (EV_A_ &pipe_w); 3086 ev_io_stop (EV_A_ &pipe_w);
… …
2808 postfork = 0; 3097 postfork = 0;
2809} 3098}
2810 3099
2811#if EV_MULTIPLICITY 3100#if EV_MULTIPLICITY
2812 3101
3102ecb_cold
2813struct ev_loop * ecb_cold 3103struct ev_loop *
2814ev_loop_new (unsigned int flags) EV_THROW 3104ev_loop_new (unsigned int flags) EV_NOEXCEPT
2815{ 3105{
2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3106 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2817 3107
2818 memset (EV_A, 0, sizeof (struct ev_loop)); 3108 memset (EV_A, 0, sizeof (struct ev_loop));
2819 loop_init (EV_A_ flags); 3109 loop_init (EV_A_ flags);
… …
2826} 3116}
2827 3117
2828#endif /* multiplicity */ 3118#endif /* multiplicity */
2829 3119
2830#if EV_VERIFY 3120#if EV_VERIFY
2831static void noinline ecb_cold 3121noinline ecb_cold
3122static void
2832verify_watcher (EV_P_ W w) 3123verify_watcher (EV_P_ W w)
2833{ 3124{
2834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2835 3126
2836 if (w->pending) 3127 if (w->pending)
2837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2838} 3129}
2839 3130
2840static void noinline ecb_cold 3131noinline ecb_cold
3132static void
2841verify_heap (EV_P_ ANHE *heap, int N) 3133verify_heap (EV_P_ ANHE *heap, int N)
2842{ 3134{
2843 int i; 3135 int i;
2844 3136
2845 for (i = HEAP0; i < N + HEAP0; ++i) 3137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2850 3142
2851 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2852 } 3144 }
2853} 3145}
2854 3146
2855static void noinline ecb_cold 3147noinline ecb_cold
3148static void
2856array_verify (EV_P_ W *ws, int cnt) 3149array_verify (EV_P_ W *ws, int cnt)
2857{ 3150{
2858 while (cnt--) 3151 while (cnt--)
2859 { 3152 {
2860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2863} 3156}
2864#endif 3157#endif
2865 3158
2866#if EV_FEATURE_API 3159#if EV_FEATURE_API
2867void ecb_cold 3160void ecb_cold
2868ev_verify (EV_P) EV_THROW 3161ev_verify (EV_P) EV_NOEXCEPT
2869{ 3162{
2870#if EV_VERIFY 3163#if EV_VERIFY
2871 int i; 3164 int i;
2872 WL w, w2; 3165 WL w, w2;
2873 3166
… …
2949#endif 3242#endif
2950} 3243}
2951#endif 3244#endif
2952 3245
2953#if EV_MULTIPLICITY 3246#if EV_MULTIPLICITY
3247ecb_cold
2954struct ev_loop * ecb_cold 3248struct ev_loop *
2955#else 3249#else
2956int 3250int
2957#endif 3251#endif
2958ev_default_loop (unsigned int flags) EV_THROW 3252ev_default_loop (unsigned int flags) EV_NOEXCEPT
2959{ 3253{
2960 if (!ev_default_loop_ptr) 3254 if (!ev_default_loop_ptr)
2961 { 3255 {
2962#if EV_MULTIPLICITY 3256#if EV_MULTIPLICITY
2963 EV_P = ev_default_loop_ptr = &default_loop_struct; 3257 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2982 3276
2983 return ev_default_loop_ptr; 3277 return ev_default_loop_ptr;
2984} 3278}
2985 3279
2986void 3280void
2987ev_loop_fork (EV_P) EV_THROW 3281ev_loop_fork (EV_P) EV_NOEXCEPT
2988{ 3282{
2989 postfork = 1; 3283 postfork = 1;
2990} 3284}
2991 3285
2992/*****************************************************************************/ 3286/*****************************************************************************/
… …
2996{ 3290{
2997 EV_CB_INVOKE ((W)w, revents); 3291 EV_CB_INVOKE ((W)w, revents);
2998} 3292}
2999 3293
3000unsigned int 3294unsigned int
3001ev_pending_count (EV_P) EV_THROW 3295ev_pending_count (EV_P) EV_NOEXCEPT
3002{ 3296{
3003 int pri; 3297 int pri;
3004 unsigned int count = 0; 3298 unsigned int count = 0;
3005 3299
3006 for (pri = NUMPRI; pri--; ) 3300 for (pri = NUMPRI; pri--; )
3007 count += pendingcnt [pri]; 3301 count += pendingcnt [pri];
3008 3302
3009 return count; 3303 return count;
3010} 3304}
3011 3305
3012void noinline 3306noinline
3307void
3013ev_invoke_pending (EV_P) 3308ev_invoke_pending (EV_P)
3014{ 3309{
3015 pendingpri = NUMPRI; 3310 pendingpri = NUMPRI;
3016 3311
3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3312 do
3018 { 3313 {
3019 --pendingpri; 3314 --pendingpri;
3020 3315
3316 /* pendingpri possibly gets modified in the inner loop */
3021 while (pendingcnt [pendingpri]) 3317 while (pendingcnt [pendingpri])
3022 { 3318 {
3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3319 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3024 3320
3025 p->w->pending = 0; 3321 p->w->pending = 0;
3026 EV_CB_INVOKE (p->w, p->events); 3322 EV_CB_INVOKE (p->w, p->events);
3027 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
3028 } 3324 }
3029 } 3325 }
3326 while (pendingpri);
3030} 3327}
3031 3328
3032#if EV_IDLE_ENABLE 3329#if EV_IDLE_ENABLE
3033/* make idle watchers pending. this handles the "call-idle */ 3330/* make idle watchers pending. this handles the "call-idle */
3034/* only when higher priorities are idle" logic */ 3331/* only when higher priorities are idle" logic */
… …
3092 } 3389 }
3093} 3390}
3094 3391
3095#if EV_PERIODIC_ENABLE 3392#if EV_PERIODIC_ENABLE
3096 3393
3097static void noinline 3394noinline
3395static void
3098periodic_recalc (EV_P_ ev_periodic *w) 3396periodic_recalc (EV_P_ ev_periodic *w)
3099{ 3397{
3100 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3101 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3102 3400
… …
3160 } 3458 }
3161} 3459}
3162 3460
3163/* simply recalculate all periodics */ 3461/* simply recalculate all periodics */
3164/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3462/* TODO: maybe ensure that at least one event happens when jumping forward? */
3165static void noinline ecb_cold 3463noinline ecb_cold
3464static void
3166periodics_reschedule (EV_P) 3465periodics_reschedule (EV_P)
3167{ 3466{
3168 int i; 3467 int i;
3169 3468
3170 /* adjust periodics after time jump */ 3469 /* adjust periodics after time jump */
… …
3183 reheap (periodics, periodiccnt); 3482 reheap (periodics, periodiccnt);
3184} 3483}
3185#endif 3484#endif
3186 3485
3187/* adjust all timers by a given offset */ 3486/* adjust all timers by a given offset */
3188static void noinline ecb_cold 3487noinline ecb_cold
3488static void
3189timers_reschedule (EV_P_ ev_tstamp adjust) 3489timers_reschedule (EV_P_ ev_tstamp adjust)
3190{ 3490{
3191 int i; 3491 int i;
3192 3492
3193 for (i = 0; i < timercnt; ++i) 3493 for (i = 0; i < timercnt; ++i)
… …
3440 3740
3441 return activecnt; 3741 return activecnt;
3442} 3742}
3443 3743
3444void 3744void
3445ev_break (EV_P_ int how) EV_THROW 3745ev_break (EV_P_ int how) EV_NOEXCEPT
3446{ 3746{
3447 loop_done = how; 3747 loop_done = how;
3448} 3748}
3449 3749
3450void 3750void
3451ev_ref (EV_P) EV_THROW 3751ev_ref (EV_P) EV_NOEXCEPT
3452{ 3752{
3453 ++activecnt; 3753 ++activecnt;
3454} 3754}
3455 3755
3456void 3756void
3457ev_unref (EV_P) EV_THROW 3757ev_unref (EV_P) EV_NOEXCEPT
3458{ 3758{
3459 --activecnt; 3759 --activecnt;
3460} 3760}
3461 3761
3462void 3762void
3463ev_now_update (EV_P) EV_THROW 3763ev_now_update (EV_P) EV_NOEXCEPT
3464{ 3764{
3465 time_update (EV_A_ 1e100); 3765 time_update (EV_A_ 1e100);
3466} 3766}
3467 3767
3468void 3768void
3469ev_suspend (EV_P) EV_THROW 3769ev_suspend (EV_P) EV_NOEXCEPT
3470{ 3770{
3471 ev_now_update (EV_A); 3771 ev_now_update (EV_A);
3472} 3772}
3473 3773
3474void 3774void
3475ev_resume (EV_P) EV_THROW 3775ev_resume (EV_P) EV_NOEXCEPT
3476{ 3776{
3477 ev_tstamp mn_prev = mn_now; 3777 ev_tstamp mn_prev = mn_now;
3478 3778
3479 ev_now_update (EV_A); 3779 ev_now_update (EV_A);
3480 timers_reschedule (EV_A_ mn_now - mn_prev); 3780 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3519 w->pending = 0; 3819 w->pending = 0;
3520 } 3820 }
3521} 3821}
3522 3822
3523int 3823int
3524ev_clear_pending (EV_P_ void *w) EV_THROW 3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3525{ 3825{
3526 W w_ = (W)w; 3826 W w_ = (W)w;
3527 int pending = w_->pending; 3827 int pending = w_->pending;
3528 3828
3529 if (expect_true (pending)) 3829 if (expect_true (pending))
… …
3561 w->active = 0; 3861 w->active = 0;
3562} 3862}
3563 3863
3564/*****************************************************************************/ 3864/*****************************************************************************/
3565 3865
3566void noinline 3866noinline
3867void
3567ev_io_start (EV_P_ ev_io *w) EV_THROW 3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3568{ 3869{
3569 int fd = w->fd; 3870 int fd = w->fd;
3570 3871
3571 if (expect_false (ev_is_active (w))) 3872 if (expect_false (ev_is_active (w)))
3572 return; 3873 return;
… …
3587 w->events &= ~EV__IOFDSET; 3888 w->events &= ~EV__IOFDSET;
3588 3889
3589 EV_FREQUENT_CHECK; 3890 EV_FREQUENT_CHECK;
3590} 3891}
3591 3892
3592void noinline 3893noinline
3894void
3593ev_io_stop (EV_P_ ev_io *w) EV_THROW 3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3594{ 3896{
3595 clear_pending (EV_A_ (W)w); 3897 clear_pending (EV_A_ (W)w);
3596 if (expect_false (!ev_is_active (w))) 3898 if (expect_false (!ev_is_active (w)))
3597 return; 3899 return;
3598 3900
… …
3606 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3607 3909
3608 EV_FREQUENT_CHECK; 3910 EV_FREQUENT_CHECK;
3609} 3911}
3610 3912
3611void noinline 3913noinline
3914void
3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3613{ 3916{
3614 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3615 return; 3918 return;
3616 3919
3617 ev_at (w) += mn_now; 3920 ev_at (w) += mn_now;
… …
3630 EV_FREQUENT_CHECK; 3933 EV_FREQUENT_CHECK;
3631 3934
3632 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3633} 3936}
3634 3937
3635void noinline 3938noinline
3939void
3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3637{ 3941{
3638 clear_pending (EV_A_ (W)w); 3942 clear_pending (EV_A_ (W)w);
3639 if (expect_false (!ev_is_active (w))) 3943 if (expect_false (!ev_is_active (w)))
3640 return; 3944 return;
3641 3945
… …
3660 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3661 3965
3662 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3663} 3967}
3664 3968
3665void noinline 3969noinline
3970void
3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3667{ 3972{
3668 EV_FREQUENT_CHECK; 3973 EV_FREQUENT_CHECK;
3669 3974
3670 clear_pending (EV_A_ (W)w); 3975 clear_pending (EV_A_ (W)w);
3671 3976
… …
3688 3993
3689 EV_FREQUENT_CHECK; 3994 EV_FREQUENT_CHECK;
3690} 3995}
3691 3996
3692ev_tstamp 3997ev_tstamp
3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3694{ 3999{
3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3696} 4001}
3697 4002
3698#if EV_PERIODIC_ENABLE 4003#if EV_PERIODIC_ENABLE
3699void noinline 4004noinline
4005void
3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3701{ 4007{
3702 if (expect_false (ev_is_active (w))) 4008 if (expect_false (ev_is_active (w)))
3703 return; 4009 return;
3704 4010
3705 if (w->reschedule_cb) 4011 if (w->reschedule_cb)
… …
3724 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3725 4031
3726 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3727} 4033}
3728 4034
3729void noinline 4035noinline
4036void
3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3731{ 4038{
3732 clear_pending (EV_A_ (W)w); 4039 clear_pending (EV_A_ (W)w);
3733 if (expect_false (!ev_is_active (w))) 4040 if (expect_false (!ev_is_active (w)))
3734 return; 4041 return;
3735 4042
… …
3752 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3753 4060
3754 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
3755} 4062}
3756 4063
3757void noinline 4064noinline
4065void
3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3759{ 4067{
3760 /* TODO: use adjustheap and recalculation */ 4068 /* TODO: use adjustheap and recalculation */
3761 ev_periodic_stop (EV_A_ w); 4069 ev_periodic_stop (EV_A_ w);
3762 ev_periodic_start (EV_A_ w); 4070 ev_periodic_start (EV_A_ w);
3763} 4071}
… …
3767# define SA_RESTART 0 4075# define SA_RESTART 0
3768#endif 4076#endif
3769 4077
3770#if EV_SIGNAL_ENABLE 4078#if EV_SIGNAL_ENABLE
3771 4079
3772void noinline 4080noinline
4081void
3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3774{ 4083{
3775 if (expect_false (ev_is_active (w))) 4084 if (expect_false (ev_is_active (w)))
3776 return; 4085 return;
3777 4086
3778 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3849 } 4158 }
3850 4159
3851 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
3852} 4161}
3853 4162
3854void noinline 4163noinline
4164void
3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3856{ 4166{
3857 clear_pending (EV_A_ (W)w); 4167 clear_pending (EV_A_ (W)w);
3858 if (expect_false (!ev_is_active (w))) 4168 if (expect_false (!ev_is_active (w)))
3859 return; 4169 return;
3860 4170
… …
3891#endif 4201#endif
3892 4202
3893#if EV_CHILD_ENABLE 4203#if EV_CHILD_ENABLE
3894 4204
3895void 4205void
3896ev_child_start (EV_P_ ev_child *w) EV_THROW 4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3897{ 4207{
3898#if EV_MULTIPLICITY 4208#if EV_MULTIPLICITY
3899 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3900#endif 4210#endif
3901 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
… …
3908 4218
3909 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3910} 4220}
3911 4221
3912void 4222void
3913ev_child_stop (EV_P_ ev_child *w) EV_THROW 4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3914{ 4224{
3915 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3916 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3917 return; 4227 return;
3918 4228
… …
3935 4245
3936#define DEF_STAT_INTERVAL 5.0074891 4246#define DEF_STAT_INTERVAL 5.0074891
3937#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3938#define MIN_STAT_INTERVAL 0.1074891 4248#define MIN_STAT_INTERVAL 0.1074891
3939 4249
3940static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3941 4251
3942#if EV_USE_INOTIFY 4252#if EV_USE_INOTIFY
3943 4253
3944/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3946 4256
3947static void noinline 4257noinline
4258static void
3948infy_add (EV_P_ ev_stat *w) 4259infy_add (EV_P_ ev_stat *w)
3949{ 4260{
3950 w->wd = inotify_add_watch (fs_fd, w->path, 4261 w->wd = inotify_add_watch (fs_fd, w->path,
3951 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3952 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4263 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4016 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4327 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4017 ev_timer_again (EV_A_ &w->timer); 4328 ev_timer_again (EV_A_ &w->timer);
4018 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4329 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4019} 4330}
4020 4331
4021static void noinline 4332noinline
4333static void
4022infy_del (EV_P_ ev_stat *w) 4334infy_del (EV_P_ ev_stat *w)
4023{ 4335{
4024 int slot; 4336 int slot;
4025 int wd = w->wd; 4337 int wd = w->wd;
4026 4338
… …
4033 4345
4034 /* remove this watcher, if others are watching it, they will rearm */ 4346 /* remove this watcher, if others are watching it, they will rearm */
4035 inotify_rm_watch (fs_fd, wd); 4347 inotify_rm_watch (fs_fd, wd);
4036} 4348}
4037 4349
4038static void noinline 4350noinline
4351static void
4039infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4040{ 4353{
4041 if (slot < 0) 4354 if (slot < 0)
4042 /* overflow, need to check for all hash slots */ 4355 /* overflow, need to check for all hash slots */
4043 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4356 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4079 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4392 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4080 ofs += sizeof (struct inotify_event) + ev->len; 4393 ofs += sizeof (struct inotify_event) + ev->len;
4081 } 4394 }
4082} 4395}
4083 4396
4084inline_size void ecb_cold 4397inline_size ecb_cold
4398void
4085ev_check_2625 (EV_P) 4399ev_check_2625 (EV_P)
4086{ 4400{
4087 /* kernels < 2.6.25 are borked 4401 /* kernels < 2.6.25 are borked
4088 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4402 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4089 */ 4403 */
… …
4179#else 4493#else
4180# define EV_LSTAT(p,b) lstat (p, b) 4494# define EV_LSTAT(p,b) lstat (p, b)
4181#endif 4495#endif
4182 4496
4183void 4497void
4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4498ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4185{ 4499{
4186 if (lstat (w->path, &w->attr) < 0) 4500 if (lstat (w->path, &w->attr) < 0)
4187 w->attr.st_nlink = 0; 4501 w->attr.st_nlink = 0;
4188 else if (!w->attr.st_nlink) 4502 else if (!w->attr.st_nlink)
4189 w->attr.st_nlink = 1; 4503 w->attr.st_nlink = 1;
4190} 4504}
4191 4505
4192static void noinline 4506noinline
4507static void
4193stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4508stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4194{ 4509{
4195 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4196 4511
4197 ev_statdata prev = w->attr; 4512 ev_statdata prev = w->attr;
… …
4228 ev_feed_event (EV_A_ w, EV_STAT); 4543 ev_feed_event (EV_A_ w, EV_STAT);
4229 } 4544 }
4230} 4545}
4231 4546
4232void 4547void
4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4234{ 4549{
4235 if (expect_false (ev_is_active (w))) 4550 if (expect_false (ev_is_active (w)))
4236 return; 4551 return;
4237 4552
4238 ev_stat_stat (EV_A_ w); 4553 ev_stat_stat (EV_A_ w);
… …
4259 4574
4260 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4261} 4576}
4262 4577
4263void 4578void
4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4265{ 4580{
4266 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4267 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4268 return; 4583 return;
4269 4584
… …
4285} 4600}
4286#endif 4601#endif
4287 4602
4288#if EV_IDLE_ENABLE 4603#if EV_IDLE_ENABLE
4289void 4604void
4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4291{ 4606{
4292 if (expect_false (ev_is_active (w))) 4607 if (expect_false (ev_is_active (w)))
4293 return; 4608 return;
4294 4609
4295 pri_adjust (EV_A_ (W)w); 4610 pri_adjust (EV_A_ (W)w);
… …
4308 4623
4309 EV_FREQUENT_CHECK; 4624 EV_FREQUENT_CHECK;
4310} 4625}
4311 4626
4312void 4627void
4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4314{ 4629{
4315 clear_pending (EV_A_ (W)w); 4630 clear_pending (EV_A_ (W)w);
4316 if (expect_false (!ev_is_active (w))) 4631 if (expect_false (!ev_is_active (w)))
4317 return; 4632 return;
4318 4633
… …
4332} 4647}
4333#endif 4648#endif
4334 4649
4335#if EV_PREPARE_ENABLE 4650#if EV_PREPARE_ENABLE
4336void 4651void
4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4338{ 4653{
4339 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4340 return; 4655 return;
4341 4656
4342 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4347 4662
4348 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
4349} 4664}
4350 4665
4351void 4666void
4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4353{ 4668{
4354 clear_pending (EV_A_ (W)w); 4669 clear_pending (EV_A_ (W)w);
4355 if (expect_false (!ev_is_active (w))) 4670 if (expect_false (!ev_is_active (w)))
4356 return; 4671 return;
4357 4672
… …
4370} 4685}
4371#endif 4686#endif
4372 4687
4373#if EV_CHECK_ENABLE 4688#if EV_CHECK_ENABLE
4374void 4689void
4375ev_check_start (EV_P_ ev_check *w) EV_THROW 4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4376{ 4691{
4377 if (expect_false (ev_is_active (w))) 4692 if (expect_false (ev_is_active (w)))
4378 return; 4693 return;
4379 4694
4380 EV_FREQUENT_CHECK; 4695 EV_FREQUENT_CHECK;
… …
4385 4700
4386 EV_FREQUENT_CHECK; 4701 EV_FREQUENT_CHECK;
4387} 4702}
4388 4703
4389void 4704void
4390ev_check_stop (EV_P_ ev_check *w) EV_THROW 4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4391{ 4706{
4392 clear_pending (EV_A_ (W)w); 4707 clear_pending (EV_A_ (W)w);
4393 if (expect_false (!ev_is_active (w))) 4708 if (expect_false (!ev_is_active (w)))
4394 return; 4709 return;
4395 4710
… …
4407 EV_FREQUENT_CHECK; 4722 EV_FREQUENT_CHECK;
4408} 4723}
4409#endif 4724#endif
4410 4725
4411#if EV_EMBED_ENABLE 4726#if EV_EMBED_ENABLE
4412void noinline 4727noinline
4728void
4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4414{ 4730{
4415 ev_run (w->other, EVRUN_NOWAIT); 4731 ev_run (w->other, EVRUN_NOWAIT);
4416} 4732}
4417 4733
4418static void 4734static void
… …
4466 ev_idle_stop (EV_A_ idle); 4782 ev_idle_stop (EV_A_ idle);
4467} 4783}
4468#endif 4784#endif
4469 4785
4470void 4786void
4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4472{ 4788{
4473 if (expect_false (ev_is_active (w))) 4789 if (expect_false (ev_is_active (w)))
4474 return; 4790 return;
4475 4791
4476 { 4792 {
… …
4497 4813
4498 EV_FREQUENT_CHECK; 4814 EV_FREQUENT_CHECK;
4499} 4815}
4500 4816
4501void 4817void
4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4503{ 4819{
4504 clear_pending (EV_A_ (W)w); 4820 clear_pending (EV_A_ (W)w);
4505 if (expect_false (!ev_is_active (w))) 4821 if (expect_false (!ev_is_active (w)))
4506 return; 4822 return;
4507 4823
… …
4517} 4833}
4518#endif 4834#endif
4519 4835
4520#if EV_FORK_ENABLE 4836#if EV_FORK_ENABLE
4521void 4837void
4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4523{ 4839{
4524 if (expect_false (ev_is_active (w))) 4840 if (expect_false (ev_is_active (w)))
4525 return; 4841 return;
4526 4842
4527 EV_FREQUENT_CHECK; 4843 EV_FREQUENT_CHECK;
… …
4532 4848
4533 EV_FREQUENT_CHECK; 4849 EV_FREQUENT_CHECK;
4534} 4850}
4535 4851
4536void 4852void
4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4538{ 4854{
4539 clear_pending (EV_A_ (W)w); 4855 clear_pending (EV_A_ (W)w);
4540 if (expect_false (!ev_is_active (w))) 4856 if (expect_false (!ev_is_active (w)))
4541 return; 4857 return;
4542 4858
… …
4555} 4871}
4556#endif 4872#endif
4557 4873
4558#if EV_CLEANUP_ENABLE 4874#if EV_CLEANUP_ENABLE
4559void 4875void
4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4561{ 4877{
4562 if (expect_false (ev_is_active (w))) 4878 if (expect_false (ev_is_active (w)))
4563 return; 4879 return;
4564 4880
4565 EV_FREQUENT_CHECK; 4881 EV_FREQUENT_CHECK;
… …
4572 ev_unref (EV_A); 4888 ev_unref (EV_A);
4573 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4574} 4890}
4575 4891
4576void 4892void
4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4578{ 4894{
4579 clear_pending (EV_A_ (W)w); 4895 clear_pending (EV_A_ (W)w);
4580 if (expect_false (!ev_is_active (w))) 4896 if (expect_false (!ev_is_active (w)))
4581 return; 4897 return;
4582 4898
… …
4596} 4912}
4597#endif 4913#endif
4598 4914
4599#if EV_ASYNC_ENABLE 4915#if EV_ASYNC_ENABLE
4600void 4916void
4601ev_async_start (EV_P_ ev_async *w) EV_THROW 4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4602{ 4918{
4603 if (expect_false (ev_is_active (w))) 4919 if (expect_false (ev_is_active (w)))
4604 return; 4920 return;
4605 4921
4606 w->sent = 0; 4922 w->sent = 0;
… …
4615 4931
4616 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4617} 4933}
4618 4934
4619void 4935void
4620ev_async_stop (EV_P_ ev_async *w) EV_THROW 4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4621{ 4937{
4622 clear_pending (EV_A_ (W)w); 4938 clear_pending (EV_A_ (W)w);
4623 if (expect_false (!ev_is_active (w))) 4939 if (expect_false (!ev_is_active (w)))
4624 return; 4940 return;
4625 4941
… …
4636 4952
4637 EV_FREQUENT_CHECK; 4953 EV_FREQUENT_CHECK;
4638} 4954}
4639 4955
4640void 4956void
4641ev_async_send (EV_P_ ev_async *w) EV_THROW 4957ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4642{ 4958{
4643 w->sent = 1; 4959 w->sent = 1;
4644 evpipe_write (EV_A_ &async_pending); 4960 evpipe_write (EV_A_ &async_pending);
4645} 4961}
4646#endif 4962#endif
… …
4683 4999
4684 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5000 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4685} 5001}
4686 5002
4687void 5003void
4688ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5004ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4689{ 5005{
4690 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5006 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4691
4692 if (expect_false (!once))
4693 {
4694 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4695 return;
4696 }
4697 5007
4698 once->cb = cb; 5008 once->cb = cb;
4699 once->arg = arg; 5009 once->arg = arg;
4700 5010
4701 ev_init (&once->io, once_cb_io); 5011 ev_init (&once->io, once_cb_io);
… …
4714} 5024}
4715 5025
4716/*****************************************************************************/ 5026/*****************************************************************************/
4717 5027
4718#if EV_WALK_ENABLE 5028#if EV_WALK_ENABLE
4719void ecb_cold 5029ecb_cold
5030void
4720ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5031ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4721{ 5032{
4722 int i, j; 5033 int i, j;
4723 ev_watcher_list *wl, *wn; 5034 ev_watcher_list *wl, *wn;
4724 5035
4725 if (types & (EV_IO | EV_EMBED)) 5036 if (types & (EV_IO | EV_EMBED))

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