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Comparing libev/ev.c (file contents):
Revision 1.455 by root, Sun Apr 28 12:45:20 2013 UTC vs.
Revision 1.495 by root, Mon Jun 24 21:27:57 2019 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) 2007-2019 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
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#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
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 385#endif
361 386
362#ifdef ANDROID 387#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 388/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 389# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 390# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 392# undef EV_USE_CLOCK_SYSCALL
… …
408 433
409#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
413# endif 446# endif
414#endif 447#endif
415 448
416#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
417# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
487/* 520/*
488 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
489 * 522 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 525 * All rights reserved.
493 * 526 *
494 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
514 */ 558 */
515 559
516#ifndef ECB_H 560#ifndef ECB_H
517#define ECB_H 561#define ECB_H
518 562
519/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 564#define ECB_VERSION 0x00010005
521 565
522#ifdef _WIN32 566#ifdef _WIN32
523 typedef signed char int8_t; 567 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
544 #endif 588 #endif
545#else 589#else
546 #include <inttypes.h> 590 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
549 #else 593 #else
550 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
551 #endif 595 #endif
552#endif 596#endif
553 597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
554/* work around x32 idiocy by defining proper macros */ 601/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if __ILP32 603 #if _ILP32
557 #define ECB_AMD64_X32 1 604 #define ECB_AMD64_X32 1
558 #else 605 #else
559 #define ECB_AMD64 1 606 #define ECB_AMD64 1
560 #endif 607 #endif
561#endif 608#endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 613 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
569 */ 616 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
573 #else 619#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 621#endif
576#endif
577 622
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
581#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 653
584#if ECB_CPP 654#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
600 #define ECB_NO_SMP 1 670 #define ECB_NO_SMP 1
601#endif 671#endif
602 672
603#if ECB_NO_SMP 673#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
675#endif
676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
605#endif 684#endif
606 685
607#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
609 #if __i386 || __i386__ 688 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 690 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 691 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 692 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 696 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
698 #elif defined __ARM_ARCH_2__ \
699 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
700 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
701 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
702 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
703 || defined __ARM_ARCH_5TEJ__
704 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 705 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 706 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
707 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 709 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 710 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 712 #elif __aarch64__
713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
714 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 717 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 718 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__ 720 #elif defined __mips__
721 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
722 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
632 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
633 #elif defined __alpha__ 724 #elif defined __alpha__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 725 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
635 #elif defined __hppa__ 726 #elif defined __hppa__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 727 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 728 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif defined __ia64__ 729 #elif defined __ia64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 730 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
731 #elif defined __m68k__
732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
733 #elif defined __m88k__
734 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
735 #elif defined __sh__
736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
640 #endif 737 #endif
641 #endif 738 #endif
642#endif 739#endif
643 740
644#ifndef ECB_MEMORY_FENCE 741#ifndef ECB_MEMORY_FENCE
645 #if ECB_GCC_VERSION(4,7) 742 #if ECB_GCC_VERSION(4,7)
646 /* see comment below (stdatomic.h) about the C11 memory model. */ 743 /* see comment below (stdatomic.h) about the C11 memory model. */
647 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 744 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
745 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
746 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
648 747
649 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 748 #elif ECB_CLANG_EXTENSION(c_atomic)
650 * without risking compile time errors with other compilers. We *could*
651 * define our own ecb_clang_has_feature, but I just can't be bothered to work
652 * around this shit time and again.
653 * #elif defined __clang && __has_feature (cxx_atomic)
654 * // see comment below (stdatomic.h) about the C11 memory model. 749 /* see comment below (stdatomic.h) about the C11 memory model. */
655 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 750 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
656 */ 751 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
752 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
657 753
658 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 754 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
659 #define ECB_MEMORY_FENCE __sync_synchronize () 755 #define ECB_MEMORY_FENCE __sync_synchronize ()
756 #elif _MSC_VER >= 1500 /* VC++ 2008 */
757 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
758 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
759 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
760 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
761 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
660 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 762 #elif _MSC_VER >= 1400 /* VC++ 2005 */
661 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 763 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
662 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 764 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
663 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 765 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
664 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 766 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
684 /* any fence other than seq_cst, which isn't very efficient for us. */ 786 /* any fence other than seq_cst, which isn't very efficient for us. */
685 /* Why that is, we don't know - either the C11 memory model is quite useless */ 787 /* Why that is, we don't know - either the C11 memory model is quite useless */
686 /* for most usages, or gcc and clang have a bug */ 788 /* for most usages, or gcc and clang have a bug */
687 /* I *currently* lean towards the latter, and inefficiently implement */ 789 /* I *currently* lean towards the latter, and inefficiently implement */
688 /* all three of ecb's fences as a seq_cst fence */ 790 /* all three of ecb's fences as a seq_cst fence */
791 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
792 /* for all __atomic_thread_fence's except seq_cst */
689 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 793 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
690 #endif 794 #endif
691#endif 795#endif
692 796
693#ifndef ECB_MEMORY_FENCE 797#ifndef ECB_MEMORY_FENCE
… …
716 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 820 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
717#endif 821#endif
718 822
719/*****************************************************************************/ 823/*****************************************************************************/
720 824
721#if __cplusplus 825#if ECB_CPP
722 #define ecb_inline static inline 826 #define ecb_inline static inline
723#elif ECB_GCC_VERSION(2,5) 827#elif ECB_GCC_VERSION(2,5)
724 #define ecb_inline static __inline__ 828 #define ecb_inline static __inline__
725#elif ECB_C99 829#elif ECB_C99
726 #define ecb_inline static inline 830 #define ecb_inline static inline
… …
740 844
741#define ECB_CONCAT_(a, b) a ## b 845#define ECB_CONCAT_(a, b) a ## b
742#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 846#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
743#define ECB_STRINGIFY_(a) # a 847#define ECB_STRINGIFY_(a) # a
744#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 848#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
849#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
745 850
746#define ecb_function_ ecb_inline 851#define ecb_function_ ecb_inline
747 852
748#if ECB_GCC_VERSION(3,1) 853#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
749 #define ecb_attribute(attrlist) __attribute__(attrlist) 854 #define ecb_attribute(attrlist) __attribute__ (attrlist)
855#else
856 #define ecb_attribute(attrlist)
857#endif
858
859#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
750 #define ecb_is_constant(expr) __builtin_constant_p (expr) 860 #define ecb_is_constant(expr) __builtin_constant_p (expr)
861#else
862 /* possible C11 impl for integral types
863 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
864 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
865
866 #define ecb_is_constant(expr) 0
867#endif
868
869#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
751 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 870 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
871#else
872 #define ecb_expect(expr,value) (expr)
873#endif
874
875#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
752 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 876 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
753#else 877#else
754 #define ecb_attribute(attrlist)
755 #define ecb_is_constant(expr) 0
756 #define ecb_expect(expr,value) (expr)
757 #define ecb_prefetch(addr,rw,locality) 878 #define ecb_prefetch(addr,rw,locality)
758#endif 879#endif
759 880
760/* no emulation for ecb_decltype */ 881/* no emulation for ecb_decltype */
761#if ECB_GCC_VERSION(4,5) 882#if ECB_CPP11
883 // older implementations might have problems with decltype(x)::type, work around it
884 template<class T> struct ecb_decltype_t { typedef T type; };
762 #define ecb_decltype(x) __decltype(x) 885 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
763#elif ECB_GCC_VERSION(3,0) 886#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
764 #define ecb_decltype(x) __typeof(x) 887 #define ecb_decltype(x) __typeof__ (x)
765#endif 888#endif
766 889
890#if _MSC_VER >= 1300
891 #define ecb_deprecated __declspec (deprecated)
892#else
893 #define ecb_deprecated ecb_attribute ((__deprecated__))
894#endif
895
896#if _MSC_VER >= 1500
897 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
898#elif ECB_GCC_VERSION(4,5)
899 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
900#else
901 #define ecb_deprecated_message(msg) ecb_deprecated
902#endif
903
904#if _MSC_VER >= 1400
905 #define ecb_noinline __declspec (noinline)
906#else
767#define ecb_noinline ecb_attribute ((__noinline__)) 907 #define ecb_noinline ecb_attribute ((__noinline__))
908#endif
909
768#define ecb_unused ecb_attribute ((__unused__)) 910#define ecb_unused ecb_attribute ((__unused__))
769#define ecb_const ecb_attribute ((__const__)) 911#define ecb_const ecb_attribute ((__const__))
770#define ecb_pure ecb_attribute ((__pure__)) 912#define ecb_pure ecb_attribute ((__pure__))
771 913
772#if ECB_C11 914#if ECB_C11 || __IBMC_NORETURN
915 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
773 #define ecb_noreturn _Noreturn 916 #define ecb_noreturn _Noreturn
917#elif ECB_CPP11
918 #define ecb_noreturn [[noreturn]]
919#elif _MSC_VER >= 1200
920 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
921 #define ecb_noreturn __declspec (noreturn)
774#else 922#else
775 #define ecb_noreturn ecb_attribute ((__noreturn__)) 923 #define ecb_noreturn ecb_attribute ((__noreturn__))
776#endif 924#endif
777 925
778#if ECB_GCC_VERSION(4,3) 926#if ECB_GCC_VERSION(4,3)
… …
793/* for compatibility to the rest of the world */ 941/* for compatibility to the rest of the world */
794#define ecb_likely(expr) ecb_expect_true (expr) 942#define ecb_likely(expr) ecb_expect_true (expr)
795#define ecb_unlikely(expr) ecb_expect_false (expr) 943#define ecb_unlikely(expr) ecb_expect_false (expr)
796 944
797/* count trailing zero bits and count # of one bits */ 945/* count trailing zero bits and count # of one bits */
798#if ECB_GCC_VERSION(3,4) 946#if ECB_GCC_VERSION(3,4) \
947 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
948 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
949 && ECB_CLANG_BUILTIN(__builtin_popcount))
799 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 950 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
800 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 951 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
801 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 952 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
802 #define ecb_ctz32(x) __builtin_ctz (x) 953 #define ecb_ctz32(x) __builtin_ctz (x)
803 #define ecb_ctz64(x) __builtin_ctzll (x) 954 #define ecb_ctz64(x) __builtin_ctzll (x)
804 #define ecb_popcount32(x) __builtin_popcount (x) 955 #define ecb_popcount32(x) __builtin_popcount (x)
805 /* no popcountll */ 956 /* no popcountll */
806#else 957#else
807 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 958 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
808 ecb_function_ int 959 ecb_function_ ecb_const int
809 ecb_ctz32 (uint32_t x) 960 ecb_ctz32 (uint32_t x)
810 { 961 {
962#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
963 unsigned long r;
964 _BitScanForward (&r, x);
965 return (int)r;
966#else
811 int r = 0; 967 int r = 0;
812 968
813 x &= ~x + 1; /* this isolates the lowest bit */ 969 x &= ~x + 1; /* this isolates the lowest bit */
814 970
815#if ECB_branchless_on_i386 971#if ECB_branchless_on_i386
… …
825 if (x & 0xff00ff00) r += 8; 981 if (x & 0xff00ff00) r += 8;
826 if (x & 0xffff0000) r += 16; 982 if (x & 0xffff0000) r += 16;
827#endif 983#endif
828 984
829 return r; 985 return r;
986#endif
830 } 987 }
831 988
832 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 989 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
833 ecb_function_ int 990 ecb_function_ ecb_const int
834 ecb_ctz64 (uint64_t x) 991 ecb_ctz64 (uint64_t x)
835 { 992 {
993#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanForward64 (&r, x);
996 return (int)r;
997#else
836 int shift = x & 0xffffffffU ? 0 : 32; 998 int shift = x & 0xffffffff ? 0 : 32;
837 return ecb_ctz32 (x >> shift) + shift; 999 return ecb_ctz32 (x >> shift) + shift;
1000#endif
838 } 1001 }
839 1002
840 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1003 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
841 ecb_function_ int 1004 ecb_function_ ecb_const int
842 ecb_popcount32 (uint32_t x) 1005 ecb_popcount32 (uint32_t x)
843 { 1006 {
844 x -= (x >> 1) & 0x55555555; 1007 x -= (x >> 1) & 0x55555555;
845 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1008 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
846 x = ((x >> 4) + x) & 0x0f0f0f0f; 1009 x = ((x >> 4) + x) & 0x0f0f0f0f;
847 x *= 0x01010101; 1010 x *= 0x01010101;
848 1011
849 return x >> 24; 1012 return x >> 24;
850 } 1013 }
851 1014
852 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1015 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
853 ecb_function_ int ecb_ld32 (uint32_t x) 1016 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
854 { 1017 {
1018#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1019 unsigned long r;
1020 _BitScanReverse (&r, x);
1021 return (int)r;
1022#else
855 int r = 0; 1023 int r = 0;
856 1024
857 if (x >> 16) { x >>= 16; r += 16; } 1025 if (x >> 16) { x >>= 16; r += 16; }
858 if (x >> 8) { x >>= 8; r += 8; } 1026 if (x >> 8) { x >>= 8; r += 8; }
859 if (x >> 4) { x >>= 4; r += 4; } 1027 if (x >> 4) { x >>= 4; r += 4; }
860 if (x >> 2) { x >>= 2; r += 2; } 1028 if (x >> 2) { x >>= 2; r += 2; }
861 if (x >> 1) { r += 1; } 1029 if (x >> 1) { r += 1; }
862 1030
863 return r; 1031 return r;
1032#endif
864 } 1033 }
865 1034
866 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1035 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
867 ecb_function_ int ecb_ld64 (uint64_t x) 1036 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
868 { 1037 {
1038#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1039 unsigned long r;
1040 _BitScanReverse64 (&r, x);
1041 return (int)r;
1042#else
869 int r = 0; 1043 int r = 0;
870 1044
871 if (x >> 32) { x >>= 32; r += 32; } 1045 if (x >> 32) { x >>= 32; r += 32; }
872 1046
873 return r + ecb_ld32 (x); 1047 return r + ecb_ld32 (x);
1048#endif
874 } 1049 }
875#endif 1050#endif
876 1051
877ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1052ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
878ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1053ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
879ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
880ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
881 1056
882ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1057ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
883ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1058ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
884{ 1059{
885 return ( (x * 0x0802U & 0x22110U) 1060 return ( (x * 0x0802U & 0x22110U)
886 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1061 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
887} 1062}
888 1063
889ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1064ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
890ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1065ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
891{ 1066{
892 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1067 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
893 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1068 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
894 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1069 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
895 x = ( x >> 8 ) | ( x << 8); 1070 x = ( x >> 8 ) | ( x << 8);
896 1071
897 return x; 1072 return x;
898} 1073}
899 1074
900ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1075ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
901ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1076ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
902{ 1077{
903 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1078 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
904 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1079 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
905 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1080 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
906 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1081 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
909 return x; 1084 return x;
910} 1085}
911 1086
912/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1087/* popcount64 is only available on 64 bit cpus as gcc builtin */
913/* so for this version we are lazy */ 1088/* so for this version we are lazy */
914ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1089ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
915ecb_function_ int 1090ecb_function_ ecb_const int
916ecb_popcount64 (uint64_t x) 1091ecb_popcount64 (uint64_t x)
917{ 1092{
918 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1093 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
919} 1094}
920 1095
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1096ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1097ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
929 1104
930ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1105ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
931ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1106ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
932ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1107ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
933ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1108ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
934ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1109ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
935ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1110ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
936ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1111ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
937ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1112ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
938 1113
939#if ECB_GCC_VERSION(4,3) 1114#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1115 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1116 #define ecb_bswap16(x) __builtin_bswap16 (x)
1117 #else
940 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1118 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1119 #endif
941 #define ecb_bswap32(x) __builtin_bswap32 (x) 1120 #define ecb_bswap32(x) __builtin_bswap32 (x)
942 #define ecb_bswap64(x) __builtin_bswap64 (x) 1121 #define ecb_bswap64(x) __builtin_bswap64 (x)
1122#elif _MSC_VER
1123 #include <stdlib.h>
1124 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1125 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1126 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
943#else 1127#else
944 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1128 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
945 ecb_function_ uint16_t 1129 ecb_function_ ecb_const uint16_t
946 ecb_bswap16 (uint16_t x) 1130 ecb_bswap16 (uint16_t x)
947 { 1131 {
948 return ecb_rotl16 (x, 8); 1132 return ecb_rotl16 (x, 8);
949 } 1133 }
950 1134
951 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1135 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
952 ecb_function_ uint32_t 1136 ecb_function_ ecb_const uint32_t
953 ecb_bswap32 (uint32_t x) 1137 ecb_bswap32 (uint32_t x)
954 { 1138 {
955 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1139 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
956 } 1140 }
957 1141
958 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1142 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
959 ecb_function_ uint64_t 1143 ecb_function_ ecb_const uint64_t
960 ecb_bswap64 (uint64_t x) 1144 ecb_bswap64 (uint64_t x)
961 { 1145 {
962 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1146 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
963 } 1147 }
964#endif 1148#endif
965 1149
966#if ECB_GCC_VERSION(4,5) 1150#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
967 #define ecb_unreachable() __builtin_unreachable () 1151 #define ecb_unreachable() __builtin_unreachable ()
968#else 1152#else
969 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1153 /* this seems to work fine, but gcc always emits a warning for it :/ */
970 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1154 ecb_inline ecb_noreturn void ecb_unreachable (void);
971 ecb_inline void ecb_unreachable (void) { } 1155 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
972#endif 1156#endif
973 1157
974/* try to tell the compiler that some condition is definitely true */ 1158/* try to tell the compiler that some condition is definitely true */
975#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1159#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
976 1160
977ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
978ecb_inline unsigned char 1162ecb_inline ecb_const uint32_t
979ecb_byteorder_helper (void) 1163ecb_byteorder_helper (void)
980{ 1164{
981 /* the union code still generates code under pressure in gcc, */ 1165 /* the union code still generates code under pressure in gcc, */
982 /* but less than using pointers, and always seems to */ 1166 /* but less than using pointers, and always seems to */
983 /* successfully return a constant. */ 1167 /* successfully return a constant. */
984 /* the reason why we have this horrible preprocessor mess */ 1168 /* the reason why we have this horrible preprocessor mess */
985 /* is to avoid it in all cases, at least on common architectures */ 1169 /* is to avoid it in all cases, at least on common architectures */
986 /* or when using a recent enough gcc version (>= 4.6) */ 1170 /* or when using a recent enough gcc version (>= 4.6) */
987#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
988 return 0x44;
989#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1171#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1172 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1173 #define ECB_LITTLE_ENDIAN 1
990 return 0x44; 1174 return 0x44332211;
991#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1175#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1176 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1177 #define ECB_BIG_ENDIAN 1
992 return 0x11; 1178 return 0x11223344;
993#else 1179#else
994 union 1180 union
995 { 1181 {
1182 uint8_t c[4];
996 uint32_t i; 1183 uint32_t u;
997 uint8_t c;
998 } u = { 0x11223344 }; 1184 } u = { 0x11, 0x22, 0x33, 0x44 };
999 return u.c; 1185 return u.u;
1000#endif 1186#endif
1001} 1187}
1002 1188
1003ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1189ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1004ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1190ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1005ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1006ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1192ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1007 1193
1008#if ECB_GCC_VERSION(3,0) || ECB_C99 1194#if ECB_GCC_VERSION(3,0) || ECB_C99
1009 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1195 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1010#else 1196#else
1011 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1197 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1012#endif 1198#endif
1013 1199
1014#if __cplusplus 1200#if ECB_CPP
1015 template<typename T> 1201 template<typename T>
1016 static inline T ecb_div_rd (T val, T div) 1202 static inline T ecb_div_rd (T val, T div)
1017 { 1203 {
1018 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1204 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1019 } 1205 }
… …
1036 } 1222 }
1037#else 1223#else
1038 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1224 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1039#endif 1225#endif
1040 1226
1227ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1228ecb_function_ ecb_const uint32_t
1229ecb_binary16_to_binary32 (uint32_t x)
1230{
1231 unsigned int s = (x & 0x8000) << (31 - 15);
1232 int e = (x >> 10) & 0x001f;
1233 unsigned int m = x & 0x03ff;
1234
1235 if (ecb_expect_false (e == 31))
1236 /* infinity or NaN */
1237 e = 255 - (127 - 15);
1238 else if (ecb_expect_false (!e))
1239 {
1240 if (ecb_expect_true (!m))
1241 /* zero, handled by code below by forcing e to 0 */
1242 e = 0 - (127 - 15);
1243 else
1244 {
1245 /* subnormal, renormalise */
1246 unsigned int s = 10 - ecb_ld32 (m);
1247
1248 m = (m << s) & 0x3ff; /* mask implicit bit */
1249 e -= s - 1;
1250 }
1251 }
1252
1253 /* e and m now are normalised, or zero, (or inf or nan) */
1254 e += 127 - 15;
1255
1256 return s | (e << 23) | (m << (23 - 10));
1257}
1258
1259ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1260ecb_function_ ecb_const uint16_t
1261ecb_binary32_to_binary16 (uint32_t x)
1262{
1263 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1264 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1265 unsigned int m = x & 0x007fffff;
1266
1267 x &= 0x7fffffff;
1268
1269 /* if it's within range of binary16 normals, use fast path */
1270 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1271 {
1272 /* mantissa round-to-even */
1273 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1274
1275 /* handle overflow */
1276 if (ecb_expect_false (m >= 0x00800000))
1277 {
1278 m >>= 1;
1279 e += 1;
1280 }
1281
1282 return s | (e << 10) | (m >> (23 - 10));
1283 }
1284
1285 /* handle large numbers and infinity */
1286 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1287 return s | 0x7c00;
1288
1289 /* handle zero, subnormals and small numbers */
1290 if (ecb_expect_true (x < 0x38800000))
1291 {
1292 /* zero */
1293 if (ecb_expect_true (!x))
1294 return s;
1295
1296 /* handle subnormals */
1297
1298 /* too small, will be zero */
1299 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1300 return s;
1301
1302 m |= 0x00800000; /* make implicit bit explicit */
1303
1304 /* very tricky - we need to round to the nearest e (+10) bit value */
1305 {
1306 unsigned int bits = 14 - e;
1307 unsigned int half = (1 << (bits - 1)) - 1;
1308 unsigned int even = (m >> bits) & 1;
1309
1310 /* if this overflows, we will end up with a normalised number */
1311 m = (m + half + even) >> bits;
1312 }
1313
1314 return s | m;
1315 }
1316
1317 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1318 m >>= 13;
1319
1320 return s | 0x7c00 | m | !m;
1321}
1322
1041/*******************************************************************************/ 1323/*******************************************************************************/
1042/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1324/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1043 1325
1044/* basically, everything uses "ieee pure-endian" floating point numbers */ 1326/* basically, everything uses "ieee pure-endian" floating point numbers */
1045/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1327/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1046#if 0 \ 1328#if 0 \
1047 || __i386 || __i386__ \ 1329 || __i386 || __i386__ \
1048 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1330 || ECB_GCC_AMD64 \
1049 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1331 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1050 || defined __arm__ && defined __ARM_EABI__ \
1051 || defined __s390__ || defined __s390x__ \ 1332 || defined __s390__ || defined __s390x__ \
1052 || defined __mips__ \ 1333 || defined __mips__ \
1053 || defined __alpha__ \ 1334 || defined __alpha__ \
1054 || defined __hppa__ \ 1335 || defined __hppa__ \
1055 || defined __ia64__ \ 1336 || defined __ia64__ \
1337 || defined __m68k__ \
1338 || defined __m88k__ \
1339 || defined __sh__ \
1056 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1340 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1341 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1342 || defined __aarch64__
1057 #define ECB_STDFP 1 1343 #define ECB_STDFP 1
1058 #include <string.h> /* for memcpy */ 1344 #include <string.h> /* for memcpy */
1059#else 1345#else
1060 #define ECB_STDFP 0 1346 #define ECB_STDFP 0
1061 #include <math.h> /* for frexp*, ldexp* */
1062#endif 1347#endif
1063 1348
1064#ifndef ECB_NO_LIBM 1349#ifndef ECB_NO_LIBM
1065 1350
1351 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1352
1353 /* only the oldest of old doesn't have this one. solaris. */
1354 #ifdef INFINITY
1355 #define ECB_INFINITY INFINITY
1356 #else
1357 #define ECB_INFINITY HUGE_VAL
1358 #endif
1359
1360 #ifdef NAN
1361 #define ECB_NAN NAN
1362 #else
1363 #define ECB_NAN ECB_INFINITY
1364 #endif
1365
1366 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1367 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1368 #define ecb_frexpf(x,e) frexpf ((x), (e))
1369 #else
1370 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1371 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1372 #endif
1373
1066 /* convert a float to ieee single/binary32 */ 1374 /* convert a float to ieee single/binary32 */
1067 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1375 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1068 ecb_function_ uint32_t 1376 ecb_function_ ecb_const uint32_t
1069 ecb_float_to_binary32 (float x) 1377 ecb_float_to_binary32 (float x)
1070 { 1378 {
1071 uint32_t r; 1379 uint32_t r;
1072 1380
1073 #if ECB_STDFP 1381 #if ECB_STDFP
… …
1080 if (x == 0e0f ) return 0x00000000U; 1388 if (x == 0e0f ) return 0x00000000U;
1081 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1389 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1082 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1390 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1083 if (x != x ) return 0x7fbfffffU; 1391 if (x != x ) return 0x7fbfffffU;
1084 1392
1085 m = frexpf (x, &e) * 0x1000000U; 1393 m = ecb_frexpf (x, &e) * 0x1000000U;
1086 1394
1087 r = m & 0x80000000U; 1395 r = m & 0x80000000U;
1088 1396
1089 if (r) 1397 if (r)
1090 m = -m; 1398 m = -m;
… …
1102 1410
1103 return r; 1411 return r;
1104 } 1412 }
1105 1413
1106 /* converts an ieee single/binary32 to a float */ 1414 /* converts an ieee single/binary32 to a float */
1107 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1415 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1108 ecb_function_ float 1416 ecb_function_ ecb_const float
1109 ecb_binary32_to_float (uint32_t x) 1417 ecb_binary32_to_float (uint32_t x)
1110 { 1418 {
1111 float r; 1419 float r;
1112 1420
1113 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1123 x |= 0x800000U; 1431 x |= 0x800000U;
1124 else 1432 else
1125 e = 1; 1433 e = 1;
1126 1434
1127 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1435 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1128 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1436 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1129 1437
1130 r = neg ? -r : r; 1438 r = neg ? -r : r;
1131 #endif 1439 #endif
1132 1440
1133 return r; 1441 return r;
1134 } 1442 }
1135 1443
1136 /* convert a double to ieee double/binary64 */ 1444 /* convert a double to ieee double/binary64 */
1137 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1445 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1138 ecb_function_ uint64_t 1446 ecb_function_ ecb_const uint64_t
1139 ecb_double_to_binary64 (double x) 1447 ecb_double_to_binary64 (double x)
1140 { 1448 {
1141 uint64_t r; 1449 uint64_t r;
1142 1450
1143 #if ECB_STDFP 1451 #if ECB_STDFP
… …
1172 1480
1173 return r; 1481 return r;
1174 } 1482 }
1175 1483
1176 /* converts an ieee double/binary64 to a double */ 1484 /* converts an ieee double/binary64 to a double */
1177 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1485 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1178 ecb_function_ double 1486 ecb_function_ ecb_const double
1179 ecb_binary64_to_double (uint64_t x) 1487 ecb_binary64_to_double (uint64_t x)
1180 { 1488 {
1181 double r; 1489 double r;
1182 1490
1183 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1199 1507
1200 r = neg ? -r : r; 1508 r = neg ? -r : r;
1201 #endif 1509 #endif
1202 1510
1203 return r; 1511 return r;
1512 }
1513
1514 /* convert a float to ieee half/binary16 */
1515 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1516 ecb_function_ ecb_const uint16_t
1517 ecb_float_to_binary16 (float x)
1518 {
1519 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1520 }
1521
1522 /* convert an ieee half/binary16 to float */
1523 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1524 ecb_function_ ecb_const float
1525 ecb_binary16_to_float (uint16_t x)
1526 {
1527 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1204 } 1528 }
1205 1529
1206#endif 1530#endif
1207 1531
1208#endif 1532#endif
… …
1233#define inline_size ecb_inline 1557#define inline_size ecb_inline
1234 1558
1235#if EV_FEATURE_CODE 1559#if EV_FEATURE_CODE
1236# define inline_speed ecb_inline 1560# define inline_speed ecb_inline
1237#else 1561#else
1238# define inline_speed static noinline 1562# define inline_speed noinline static
1239#endif 1563#endif
1240 1564
1241#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1565#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1242 1566
1243#if EV_MINPRI == EV_MAXPRI 1567#if EV_MINPRI == EV_MAXPRI
1244# define ABSPRI(w) (((W)w), 0) 1568# define ABSPRI(w) (((W)w), 0)
1245#else 1569#else
1246# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1570# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1247#endif 1571#endif
1248 1572
1249#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1573#define EMPTY /* required for microsofts broken pseudo-c compiler */
1250#define EMPTY2(a,b) /* used to suppress some warnings */
1251 1574
1252typedef ev_watcher *W; 1575typedef ev_watcher *W;
1253typedef ev_watcher_list *WL; 1576typedef ev_watcher_list *WL;
1254typedef ev_watcher_time *WT; 1577typedef ev_watcher_time *WT;
1255 1578
… …
1280# include "ev_win32.c" 1603# include "ev_win32.c"
1281#endif 1604#endif
1282 1605
1283/*****************************************************************************/ 1606/*****************************************************************************/
1284 1607
1608#if EV_USE_LINUXAIO
1609# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1610#endif
1611
1285/* define a suitable floor function (only used by periodics atm) */ 1612/* define a suitable floor function (only used by periodics atm) */
1286 1613
1287#if EV_USE_FLOOR 1614#if EV_USE_FLOOR
1288# include <math.h> 1615# include <math.h>
1289# define ev_floor(v) floor (v) 1616# define ev_floor(v) floor (v)
1290#else 1617#else
1291 1618
1292#include <float.h> 1619#include <float.h>
1293 1620
1294/* a floor() replacement function, should be independent of ev_tstamp type */ 1621/* a floor() replacement function, should be independent of ev_tstamp type */
1622noinline
1295static ev_tstamp noinline 1623static ev_tstamp
1296ev_floor (ev_tstamp v) 1624ev_floor (ev_tstamp v)
1297{ 1625{
1298 /* the choice of shift factor is not terribly important */ 1626 /* the choice of shift factor is not terribly important */
1299#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1627#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1300 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1332 1660
1333#ifdef __linux 1661#ifdef __linux
1334# include <sys/utsname.h> 1662# include <sys/utsname.h>
1335#endif 1663#endif
1336 1664
1337static unsigned int noinline ecb_cold 1665noinline ecb_cold
1666static unsigned int
1338ev_linux_version (void) 1667ev_linux_version (void)
1339{ 1668{
1340#ifdef __linux 1669#ifdef __linux
1341 unsigned int v = 0; 1670 unsigned int v = 0;
1342 struct utsname buf; 1671 struct utsname buf;
… …
1371} 1700}
1372 1701
1373/*****************************************************************************/ 1702/*****************************************************************************/
1374 1703
1375#if EV_AVOID_STDIO 1704#if EV_AVOID_STDIO
1376static void noinline ecb_cold 1705noinline ecb_cold
1706static void
1377ev_printerr (const char *msg) 1707ev_printerr (const char *msg)
1378{ 1708{
1379 write (STDERR_FILENO, msg, strlen (msg)); 1709 write (STDERR_FILENO, msg, strlen (msg));
1380} 1710}
1381#endif 1711#endif
1382 1712
1383static void (*syserr_cb)(const char *msg) EV_THROW; 1713static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1384 1714
1385void ecb_cold 1715ecb_cold
1716void
1386ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1717ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1387{ 1718{
1388 syserr_cb = cb; 1719 syserr_cb = cb;
1389} 1720}
1390 1721
1391static void noinline ecb_cold 1722noinline ecb_cold
1723static void
1392ev_syserr (const char *msg) 1724ev_syserr (const char *msg)
1393{ 1725{
1394 if (!msg) 1726 if (!msg)
1395 msg = "(libev) system error"; 1727 msg = "(libev) system error";
1396 1728
… …
1409 abort (); 1741 abort ();
1410 } 1742 }
1411} 1743}
1412 1744
1413static void * 1745static void *
1414ev_realloc_emul (void *ptr, long size) EV_THROW 1746ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1415{ 1747{
1416 /* some systems, notably openbsd and darwin, fail to properly 1748 /* some systems, notably openbsd and darwin, fail to properly
1417 * implement realloc (x, 0) (as required by both ansi c-89 and 1749 * implement realloc (x, 0) (as required by both ansi c-89 and
1418 * the single unix specification, so work around them here. 1750 * the single unix specification, so work around them here.
1419 * recently, also (at least) fedora and debian started breaking it, 1751 * recently, also (at least) fedora and debian started breaking it,
… …
1425 1757
1426 free (ptr); 1758 free (ptr);
1427 return 0; 1759 return 0;
1428} 1760}
1429 1761
1430static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1762static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1431 1763
1432void ecb_cold 1764ecb_cold
1765void
1433ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1766ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1434{ 1767{
1435 alloc = cb; 1768 alloc = cb;
1436} 1769}
1437 1770
1438inline_speed void * 1771inline_speed void *
… …
1465typedef struct 1798typedef struct
1466{ 1799{
1467 WL head; 1800 WL head;
1468 unsigned char events; /* the events watched for */ 1801 unsigned char events; /* the events watched for */
1469 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1802 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1470 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1803 unsigned char emask; /* some backends store the actual kernel mask in here */
1471 unsigned char unused; 1804 unsigned char unused;
1472#if EV_USE_EPOLL 1805#if EV_USE_EPOLL
1473 unsigned int egen; /* generation counter to counter epoll bugs */ 1806 unsigned int egen; /* generation counter to counter epoll bugs */
1474#endif 1807#endif
1475#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1555 1888
1556/*****************************************************************************/ 1889/*****************************************************************************/
1557 1890
1558#ifndef EV_HAVE_EV_TIME 1891#ifndef EV_HAVE_EV_TIME
1559ev_tstamp 1892ev_tstamp
1560ev_time (void) EV_THROW 1893ev_time (void) EV_NOEXCEPT
1561{ 1894{
1562#if EV_USE_REALTIME 1895#if EV_USE_REALTIME
1563 if (expect_true (have_realtime)) 1896 if (expect_true (have_realtime))
1564 { 1897 {
1565 struct timespec ts; 1898 struct timespec ts;
… …
1589 return ev_time (); 1922 return ev_time ();
1590} 1923}
1591 1924
1592#if EV_MULTIPLICITY 1925#if EV_MULTIPLICITY
1593ev_tstamp 1926ev_tstamp
1594ev_now (EV_P) EV_THROW 1927ev_now (EV_P) EV_NOEXCEPT
1595{ 1928{
1596 return ev_rt_now; 1929 return ev_rt_now;
1597} 1930}
1598#endif 1931#endif
1599 1932
1600void 1933void
1601ev_sleep (ev_tstamp delay) EV_THROW 1934ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1602{ 1935{
1603 if (delay > 0.) 1936 if (delay > 0.)
1604 { 1937 {
1605#if EV_USE_NANOSLEEP 1938#if EV_USE_NANOSLEEP
1606 struct timespec ts; 1939 struct timespec ts;
1607 1940
1608 EV_TS_SET (ts, delay); 1941 EV_TS_SET (ts, delay);
1609 nanosleep (&ts, 0); 1942 nanosleep (&ts, 0);
1610#elif defined _WIN32 1943#elif defined _WIN32
1944 /* maybe this should round up, as ms is very low resolution */
1945 /* compared to select (µs) or nanosleep (ns) */
1611 Sleep ((unsigned long)(delay * 1e3)); 1946 Sleep ((unsigned long)(delay * 1e3));
1612#else 1947#else
1613 struct timeval tv; 1948 struct timeval tv;
1614 1949
1615 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1950 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1646 } 1981 }
1647 1982
1648 return ncur; 1983 return ncur;
1649} 1984}
1650 1985
1651static void * noinline ecb_cold 1986noinline ecb_cold
1987static void *
1652array_realloc (int elem, void *base, int *cur, int cnt) 1988array_realloc (int elem, void *base, int *cur, int cnt)
1653{ 1989{
1654 *cur = array_nextsize (elem, *cur, cnt); 1990 *cur = array_nextsize (elem, *cur, cnt);
1655 return ev_realloc (base, elem * *cur); 1991 return ev_realloc (base, elem * *cur);
1656} 1992}
1657 1993
1994#define array_needsize_noinit(base,offset,count)
1995
1658#define array_init_zero(base,count) \ 1996#define array_needsize_zerofill(base,offset,count) \
1659 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1997 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1660 1998
1661#define array_needsize(type,base,cur,cnt,init) \ 1999#define array_needsize(type,base,cur,cnt,init) \
1662 if (expect_false ((cnt) > (cur))) \ 2000 if (expect_false ((cnt) > (cur))) \
1663 { \ 2001 { \
1664 int ecb_unused ocur_ = (cur); \ 2002 ecb_unused int ocur_ = (cur); \
1665 (base) = (type *)array_realloc \ 2003 (base) = (type *)array_realloc \
1666 (sizeof (type), (base), &(cur), (cnt)); \ 2004 (sizeof (type), (base), &(cur), (cnt)); \
1667 init ((base) + (ocur_), (cur) - ocur_); \ 2005 init ((base), ocur_, ((cur) - ocur_)); \
1668 } 2006 }
1669 2007
1670#if 0 2008#if 0
1671#define array_slim(type,stem) \ 2009#define array_slim(type,stem) \
1672 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2010 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1681 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2019 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1682 2020
1683/*****************************************************************************/ 2021/*****************************************************************************/
1684 2022
1685/* dummy callback for pending events */ 2023/* dummy callback for pending events */
1686static void noinline 2024noinline
2025static void
1687pendingcb (EV_P_ ev_prepare *w, int revents) 2026pendingcb (EV_P_ ev_prepare *w, int revents)
1688{ 2027{
1689} 2028}
1690 2029
1691void noinline 2030noinline
2031void
1692ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2032ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1693{ 2033{
1694 W w_ = (W)w; 2034 W w_ = (W)w;
1695 int pri = ABSPRI (w_); 2035 int pri = ABSPRI (w_);
1696 2036
1697 if (expect_false (w_->pending)) 2037 if (expect_false (w_->pending))
1698 pendings [pri][w_->pending - 1].events |= revents; 2038 pendings [pri][w_->pending - 1].events |= revents;
1699 else 2039 else
1700 { 2040 {
1701 w_->pending = ++pendingcnt [pri]; 2041 w_->pending = ++pendingcnt [pri];
1702 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1703 pendings [pri][w_->pending - 1].w = w_; 2043 pendings [pri][w_->pending - 1].w = w_;
1704 pendings [pri][w_->pending - 1].events = revents; 2044 pendings [pri][w_->pending - 1].events = revents;
1705 } 2045 }
1706 2046
1707 pendingpri = NUMPRI - 1; 2047 pendingpri = NUMPRI - 1;
1708} 2048}
1709 2049
1710inline_speed void 2050inline_speed void
1711feed_reverse (EV_P_ W w) 2051feed_reverse (EV_P_ W w)
1712{ 2052{
1713 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2053 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1714 rfeeds [rfeedcnt++] = w; 2054 rfeeds [rfeedcnt++] = w;
1715} 2055}
1716 2056
1717inline_size void 2057inline_size void
1718feed_reverse_done (EV_P_ int revents) 2058feed_reverse_done (EV_P_ int revents)
… …
1758 if (expect_true (!anfd->reify)) 2098 if (expect_true (!anfd->reify))
1759 fd_event_nocheck (EV_A_ fd, revents); 2099 fd_event_nocheck (EV_A_ fd, revents);
1760} 2100}
1761 2101
1762void 2102void
1763ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2103ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1764{ 2104{
1765 if (fd >= 0 && fd < anfdmax) 2105 if (fd >= 0 && fd < anfdmax)
1766 fd_event_nocheck (EV_A_ fd, revents); 2106 fd_event_nocheck (EV_A_ fd, revents);
1767} 2107}
1768 2108
… …
1826 2166
1827 fdchangecnt = 0; 2167 fdchangecnt = 0;
1828} 2168}
1829 2169
1830/* something about the given fd changed */ 2170/* something about the given fd changed */
1831inline_size void 2171inline_size
2172void
1832fd_change (EV_P_ int fd, int flags) 2173fd_change (EV_P_ int fd, int flags)
1833{ 2174{
1834 unsigned char reify = anfds [fd].reify; 2175 unsigned char reify = anfds [fd].reify;
1835 anfds [fd].reify |= flags; 2176 anfds [fd].reify |= flags;
1836 2177
1837 if (expect_true (!reify)) 2178 if (expect_true (!reify))
1838 { 2179 {
1839 ++fdchangecnt; 2180 ++fdchangecnt;
1840 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2181 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1841 fdchanges [fdchangecnt - 1] = fd; 2182 fdchanges [fdchangecnt - 1] = fd;
1842 } 2183 }
1843} 2184}
1844 2185
1845/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2186/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1846inline_speed void ecb_cold 2187inline_speed ecb_cold void
1847fd_kill (EV_P_ int fd) 2188fd_kill (EV_P_ int fd)
1848{ 2189{
1849 ev_io *w; 2190 ev_io *w;
1850 2191
1851 while ((w = (ev_io *)anfds [fd].head)) 2192 while ((w = (ev_io *)anfds [fd].head))
… …
1854 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2195 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1855 } 2196 }
1856} 2197}
1857 2198
1858/* check whether the given fd is actually valid, for error recovery */ 2199/* check whether the given fd is actually valid, for error recovery */
1859inline_size int ecb_cold 2200inline_size ecb_cold int
1860fd_valid (int fd) 2201fd_valid (int fd)
1861{ 2202{
1862#ifdef _WIN32 2203#ifdef _WIN32
1863 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2204 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1864#else 2205#else
1865 return fcntl (fd, F_GETFD) != -1; 2206 return fcntl (fd, F_GETFD) != -1;
1866#endif 2207#endif
1867} 2208}
1868 2209
1869/* called on EBADF to verify fds */ 2210/* called on EBADF to verify fds */
1870static void noinline ecb_cold 2211noinline ecb_cold
2212static void
1871fd_ebadf (EV_P) 2213fd_ebadf (EV_P)
1872{ 2214{
1873 int fd; 2215 int fd;
1874 2216
1875 for (fd = 0; fd < anfdmax; ++fd) 2217 for (fd = 0; fd < anfdmax; ++fd)
… …
1877 if (!fd_valid (fd) && errno == EBADF) 2219 if (!fd_valid (fd) && errno == EBADF)
1878 fd_kill (EV_A_ fd); 2220 fd_kill (EV_A_ fd);
1879} 2221}
1880 2222
1881/* called on ENOMEM in select/poll to kill some fds and retry */ 2223/* called on ENOMEM in select/poll to kill some fds and retry */
1882static void noinline ecb_cold 2224noinline ecb_cold
2225static void
1883fd_enomem (EV_P) 2226fd_enomem (EV_P)
1884{ 2227{
1885 int fd; 2228 int fd;
1886 2229
1887 for (fd = anfdmax; fd--; ) 2230 for (fd = anfdmax; fd--; )
… …
1891 break; 2234 break;
1892 } 2235 }
1893} 2236}
1894 2237
1895/* usually called after fork if backend needs to re-arm all fds from scratch */ 2238/* usually called after fork if backend needs to re-arm all fds from scratch */
1896static void noinline 2239noinline
2240static void
1897fd_rearm_all (EV_P) 2241fd_rearm_all (EV_P)
1898{ 2242{
1899 int fd; 2243 int fd;
1900 2244
1901 for (fd = 0; fd < anfdmax; ++fd) 2245 for (fd = 0; fd < anfdmax; ++fd)
… …
2082 2426
2083/*****************************************************************************/ 2427/*****************************************************************************/
2084 2428
2085#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2086 2430
2087static void noinline ecb_cold 2431noinline ecb_cold
2432static void
2088evpipe_init (EV_P) 2433evpipe_init (EV_P)
2089{ 2434{
2090 if (!ev_is_active (&pipe_w)) 2435 if (!ev_is_active (&pipe_w))
2091 { 2436 {
2092 int fds [2]; 2437 int fds [2];
… …
2163#endif 2508#endif
2164 { 2509 {
2165#ifdef _WIN32 2510#ifdef _WIN32
2166 WSABUF buf; 2511 WSABUF buf;
2167 DWORD sent; 2512 DWORD sent;
2168 buf.buf = &buf; 2513 buf.buf = (char *)&buf;
2169 buf.len = 1; 2514 buf.len = 1;
2170 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2515 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2171#else 2516#else
2172 write (evpipe [1], &(evpipe [1]), 1); 2517 write (evpipe [1], &(evpipe [1]), 1);
2173#endif 2518#endif
… …
2245} 2590}
2246 2591
2247/*****************************************************************************/ 2592/*****************************************************************************/
2248 2593
2249void 2594void
2250ev_feed_signal (int signum) EV_THROW 2595ev_feed_signal (int signum) EV_NOEXCEPT
2251{ 2596{
2252#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
2253 EV_P; 2598 EV_P;
2254 ECB_MEMORY_FENCE_ACQUIRE; 2599 ECB_MEMORY_FENCE_ACQUIRE;
2255 EV_A = signals [signum - 1].loop; 2600 EV_A = signals [signum - 1].loop;
… …
2270#endif 2615#endif
2271 2616
2272 ev_feed_signal (signum); 2617 ev_feed_signal (signum);
2273} 2618}
2274 2619
2275void noinline 2620noinline
2621void
2276ev_feed_signal_event (EV_P_ int signum) EV_THROW 2622ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2277{ 2623{
2278 WL w; 2624 WL w;
2279 2625
2280 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2626 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2281 return; 2627 return;
… …
2390# include "ev_kqueue.c" 2736# include "ev_kqueue.c"
2391#endif 2737#endif
2392#if EV_USE_EPOLL 2738#if EV_USE_EPOLL
2393# include "ev_epoll.c" 2739# include "ev_epoll.c"
2394#endif 2740#endif
2741#if EV_USE_LINUXAIO
2742# include "ev_linuxaio.c"
2743#endif
2395#if EV_USE_POLL 2744#if EV_USE_POLL
2396# include "ev_poll.c" 2745# include "ev_poll.c"
2397#endif 2746#endif
2398#if EV_USE_SELECT 2747#if EV_USE_SELECT
2399# include "ev_select.c" 2748# include "ev_select.c"
2400#endif 2749#endif
2401 2750
2402int ecb_cold 2751ecb_cold int
2403ev_version_major (void) EV_THROW 2752ev_version_major (void) EV_NOEXCEPT
2404{ 2753{
2405 return EV_VERSION_MAJOR; 2754 return EV_VERSION_MAJOR;
2406} 2755}
2407 2756
2408int ecb_cold 2757ecb_cold int
2409ev_version_minor (void) EV_THROW 2758ev_version_minor (void) EV_NOEXCEPT
2410{ 2759{
2411 return EV_VERSION_MINOR; 2760 return EV_VERSION_MINOR;
2412} 2761}
2413 2762
2414/* return true if we are running with elevated privileges and should ignore env variables */ 2763/* return true if we are running with elevated privileges and should ignore env variables */
2415int inline_size ecb_cold 2764inline_size ecb_cold int
2416enable_secure (void) 2765enable_secure (void)
2417{ 2766{
2418#ifdef _WIN32 2767#ifdef _WIN32
2419 return 0; 2768 return 0;
2420#else 2769#else
2421 return getuid () != geteuid () 2770 return getuid () != geteuid ()
2422 || getgid () != getegid (); 2771 || getgid () != getegid ();
2423#endif 2772#endif
2424} 2773}
2425 2774
2426unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2427ev_supported_backends (void) EV_THROW 2777ev_supported_backends (void) EV_NOEXCEPT
2428{ 2778{
2429 unsigned int flags = 0; 2779 unsigned int flags = 0;
2430 2780
2431 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2781 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2432 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2782 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2433 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2783 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2784 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2434 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2785 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2435 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2786 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2436 2787
2437 return flags; 2788 return flags;
2438} 2789}
2439 2790
2440unsigned int ecb_cold 2791ecb_cold
2792unsigned int
2441ev_recommended_backends (void) EV_THROW 2793ev_recommended_backends (void) EV_NOEXCEPT
2442{ 2794{
2443 unsigned int flags = ev_supported_backends (); 2795 unsigned int flags = ev_supported_backends ();
2444 2796
2445#ifndef __NetBSD__ 2797#ifndef __NetBSD__
2446 /* kqueue is borked on everything but netbsd apparently */ 2798 /* kqueue is borked on everything but netbsd apparently */
… …
2454#endif 2806#endif
2455#ifdef __FreeBSD__ 2807#ifdef __FreeBSD__
2456 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2808 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2457#endif 2809#endif
2458 2810
2811 /* TODO: linuxaio is very experimental */
2812#if !EV_RECOMMEND_LINUXAIO
2813 flags &= ~EVBACKEND_LINUXAIO;
2814#endif
2815
2459 return flags; 2816 return flags;
2460} 2817}
2461 2818
2462unsigned int ecb_cold 2819ecb_cold
2820unsigned int
2463ev_embeddable_backends (void) EV_THROW 2821ev_embeddable_backends (void) EV_NOEXCEPT
2464{ 2822{
2465 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2823 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2466 2824
2467 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2825 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2468 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2826 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2470 2828
2471 return flags; 2829 return flags;
2472} 2830}
2473 2831
2474unsigned int 2832unsigned int
2475ev_backend (EV_P) EV_THROW 2833ev_backend (EV_P) EV_NOEXCEPT
2476{ 2834{
2477 return backend; 2835 return backend;
2478} 2836}
2479 2837
2480#if EV_FEATURE_API 2838#if EV_FEATURE_API
2481unsigned int 2839unsigned int
2482ev_iteration (EV_P) EV_THROW 2840ev_iteration (EV_P) EV_NOEXCEPT
2483{ 2841{
2484 return loop_count; 2842 return loop_count;
2485} 2843}
2486 2844
2487unsigned int 2845unsigned int
2488ev_depth (EV_P) EV_THROW 2846ev_depth (EV_P) EV_NOEXCEPT
2489{ 2847{
2490 return loop_depth; 2848 return loop_depth;
2491} 2849}
2492 2850
2493void 2851void
2494ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2852ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2495{ 2853{
2496 io_blocktime = interval; 2854 io_blocktime = interval;
2497} 2855}
2498 2856
2499void 2857void
2500ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2858ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2501{ 2859{
2502 timeout_blocktime = interval; 2860 timeout_blocktime = interval;
2503} 2861}
2504 2862
2505void 2863void
2506ev_set_userdata (EV_P_ void *data) EV_THROW 2864ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2507{ 2865{
2508 userdata = data; 2866 userdata = data;
2509} 2867}
2510 2868
2511void * 2869void *
2512ev_userdata (EV_P) EV_THROW 2870ev_userdata (EV_P) EV_NOEXCEPT
2513{ 2871{
2514 return userdata; 2872 return userdata;
2515} 2873}
2516 2874
2517void 2875void
2518ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2876ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2519{ 2877{
2520 invoke_cb = invoke_pending_cb; 2878 invoke_cb = invoke_pending_cb;
2521} 2879}
2522 2880
2523void 2881void
2524ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2882ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2525{ 2883{
2526 release_cb = release; 2884 release_cb = release;
2527 acquire_cb = acquire; 2885 acquire_cb = acquire;
2528} 2886}
2529#endif 2887#endif
2530 2888
2531/* initialise a loop structure, must be zero-initialised */ 2889/* initialise a loop structure, must be zero-initialised */
2532static void noinline ecb_cold 2890noinline ecb_cold
2891static void
2533loop_init (EV_P_ unsigned int flags) EV_THROW 2892loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2534{ 2893{
2535 if (!backend) 2894 if (!backend)
2536 { 2895 {
2537 origflags = flags; 2896 origflags = flags;
2538 2897
… …
2596 2955
2597 if (!(flags & EVBACKEND_MASK)) 2956 if (!(flags & EVBACKEND_MASK))
2598 flags |= ev_recommended_backends (); 2957 flags |= ev_recommended_backends ();
2599 2958
2600#if EV_USE_IOCP 2959#if EV_USE_IOCP
2601 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2960 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2602#endif 2961#endif
2603#if EV_USE_PORT 2962#if EV_USE_PORT
2604 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2963 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2605#endif 2964#endif
2606#if EV_USE_KQUEUE 2965#if EV_USE_KQUEUE
2607 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2966 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2967#endif
2968#if EV_USE_LINUXAIO
2969 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2608#endif 2970#endif
2609#if EV_USE_EPOLL 2971#if EV_USE_EPOLL
2610 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2972 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2611#endif 2973#endif
2612#if EV_USE_POLL 2974#if EV_USE_POLL
2613 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2975 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2614#endif 2976#endif
2615#if EV_USE_SELECT 2977#if EV_USE_SELECT
2616 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2978 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2617#endif 2979#endif
2618 2980
2619 ev_prepare_init (&pending_w, pendingcb); 2981 ev_prepare_init (&pending_w, pendingcb);
2620 2982
2621#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2983#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2624#endif 2986#endif
2625 } 2987 }
2626} 2988}
2627 2989
2628/* free up a loop structure */ 2990/* free up a loop structure */
2629void ecb_cold 2991ecb_cold
2992void
2630ev_loop_destroy (EV_P) 2993ev_loop_destroy (EV_P)
2631{ 2994{
2632 int i; 2995 int i;
2633 2996
2634#if EV_MULTIPLICITY 2997#if EV_MULTIPLICITY
… …
2675 3038
2676 if (backend_fd >= 0) 3039 if (backend_fd >= 0)
2677 close (backend_fd); 3040 close (backend_fd);
2678 3041
2679#if EV_USE_IOCP 3042#if EV_USE_IOCP
2680 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3043 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2681#endif 3044#endif
2682#if EV_USE_PORT 3045#if EV_USE_PORT
2683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3046 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2684#endif 3047#endif
2685#if EV_USE_KQUEUE 3048#if EV_USE_KQUEUE
2686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3049 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3050#endif
3051#if EV_USE_LINUXAIO
3052 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2687#endif 3053#endif
2688#if EV_USE_EPOLL 3054#if EV_USE_EPOLL
2689 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3055 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2690#endif 3056#endif
2691#if EV_USE_POLL 3057#if EV_USE_POLL
2692 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3058 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2693#endif 3059#endif
2694#if EV_USE_SELECT 3060#if EV_USE_SELECT
2695 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3061 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2696#endif 3062#endif
2697 3063
2698 for (i = NUMPRI; i--; ) 3064 for (i = NUMPRI; i--; )
2699 { 3065 {
2700 array_free (pending, [i]); 3066 array_free (pending, [i]);
… …
2742 3108
2743inline_size void 3109inline_size void
2744loop_fork (EV_P) 3110loop_fork (EV_P)
2745{ 3111{
2746#if EV_USE_PORT 3112#if EV_USE_PORT
2747 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3113 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2748#endif 3114#endif
2749#if EV_USE_KQUEUE 3115#if EV_USE_KQUEUE
2750 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3116 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3117#endif
3118#if EV_USE_LINUXAIO
3119 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2751#endif 3120#endif
2752#if EV_USE_EPOLL 3121#if EV_USE_EPOLL
2753 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3122 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2754#endif 3123#endif
2755#if EV_USE_INOTIFY 3124#if EV_USE_INOTIFY
2756 infy_fork (EV_A); 3125 infy_fork (EV_A);
2757#endif 3126#endif
2758 3127
2759#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3128#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2760 if (ev_is_active (&pipe_w)) 3129 if (ev_is_active (&pipe_w) && postfork != 2)
2761 { 3130 {
2762 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3131 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2763 3132
2764 ev_ref (EV_A); 3133 ev_ref (EV_A);
2765 ev_io_stop (EV_A_ &pipe_w); 3134 ev_io_stop (EV_A_ &pipe_w);
… …
2776 postfork = 0; 3145 postfork = 0;
2777} 3146}
2778 3147
2779#if EV_MULTIPLICITY 3148#if EV_MULTIPLICITY
2780 3149
3150ecb_cold
2781struct ev_loop * ecb_cold 3151struct ev_loop *
2782ev_loop_new (unsigned int flags) EV_THROW 3152ev_loop_new (unsigned int flags) EV_NOEXCEPT
2783{ 3153{
2784 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3154 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2785 3155
2786 memset (EV_A, 0, sizeof (struct ev_loop)); 3156 memset (EV_A, 0, sizeof (struct ev_loop));
2787 loop_init (EV_A_ flags); 3157 loop_init (EV_A_ flags);
… …
2794} 3164}
2795 3165
2796#endif /* multiplicity */ 3166#endif /* multiplicity */
2797 3167
2798#if EV_VERIFY 3168#if EV_VERIFY
2799static void noinline ecb_cold 3169noinline ecb_cold
3170static void
2800verify_watcher (EV_P_ W w) 3171verify_watcher (EV_P_ W w)
2801{ 3172{
2802 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3173 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2803 3174
2804 if (w->pending) 3175 if (w->pending)
2805 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3176 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2806} 3177}
2807 3178
2808static void noinline ecb_cold 3179noinline ecb_cold
3180static void
2809verify_heap (EV_P_ ANHE *heap, int N) 3181verify_heap (EV_P_ ANHE *heap, int N)
2810{ 3182{
2811 int i; 3183 int i;
2812 3184
2813 for (i = HEAP0; i < N + HEAP0; ++i) 3185 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2818 3190
2819 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3191 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2820 } 3192 }
2821} 3193}
2822 3194
2823static void noinline ecb_cold 3195noinline ecb_cold
3196static void
2824array_verify (EV_P_ W *ws, int cnt) 3197array_verify (EV_P_ W *ws, int cnt)
2825{ 3198{
2826 while (cnt--) 3199 while (cnt--)
2827 { 3200 {
2828 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3201 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2831} 3204}
2832#endif 3205#endif
2833 3206
2834#if EV_FEATURE_API 3207#if EV_FEATURE_API
2835void ecb_cold 3208void ecb_cold
2836ev_verify (EV_P) EV_THROW 3209ev_verify (EV_P) EV_NOEXCEPT
2837{ 3210{
2838#if EV_VERIFY 3211#if EV_VERIFY
2839 int i; 3212 int i;
2840 WL w, w2; 3213 WL w, w2;
2841 3214
… …
2917#endif 3290#endif
2918} 3291}
2919#endif 3292#endif
2920 3293
2921#if EV_MULTIPLICITY 3294#if EV_MULTIPLICITY
3295ecb_cold
2922struct ev_loop * ecb_cold 3296struct ev_loop *
2923#else 3297#else
2924int 3298int
2925#endif 3299#endif
2926ev_default_loop (unsigned int flags) EV_THROW 3300ev_default_loop (unsigned int flags) EV_NOEXCEPT
2927{ 3301{
2928 if (!ev_default_loop_ptr) 3302 if (!ev_default_loop_ptr)
2929 { 3303 {
2930#if EV_MULTIPLICITY 3304#if EV_MULTIPLICITY
2931 EV_P = ev_default_loop_ptr = &default_loop_struct; 3305 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2950 3324
2951 return ev_default_loop_ptr; 3325 return ev_default_loop_ptr;
2952} 3326}
2953 3327
2954void 3328void
2955ev_loop_fork (EV_P) EV_THROW 3329ev_loop_fork (EV_P) EV_NOEXCEPT
2956{ 3330{
2957 postfork = 1; 3331 postfork = 1;
2958} 3332}
2959 3333
2960/*****************************************************************************/ 3334/*****************************************************************************/
… …
2964{ 3338{
2965 EV_CB_INVOKE ((W)w, revents); 3339 EV_CB_INVOKE ((W)w, revents);
2966} 3340}
2967 3341
2968unsigned int 3342unsigned int
2969ev_pending_count (EV_P) EV_THROW 3343ev_pending_count (EV_P) EV_NOEXCEPT
2970{ 3344{
2971 int pri; 3345 int pri;
2972 unsigned int count = 0; 3346 unsigned int count = 0;
2973 3347
2974 for (pri = NUMPRI; pri--; ) 3348 for (pri = NUMPRI; pri--; )
2975 count += pendingcnt [pri]; 3349 count += pendingcnt [pri];
2976 3350
2977 return count; 3351 return count;
2978} 3352}
2979 3353
2980void noinline 3354noinline
3355void
2981ev_invoke_pending (EV_P) 3356ev_invoke_pending (EV_P)
2982{ 3357{
2983 pendingpri = NUMPRI; 3358 pendingpri = NUMPRI;
2984 3359
2985 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3360 do
2986 { 3361 {
2987 --pendingpri; 3362 --pendingpri;
2988 3363
3364 /* pendingpri possibly gets modified in the inner loop */
2989 while (pendingcnt [pendingpri]) 3365 while (pendingcnt [pendingpri])
2990 { 3366 {
2991 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3367 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2992 3368
2993 p->w->pending = 0; 3369 p->w->pending = 0;
2994 EV_CB_INVOKE (p->w, p->events); 3370 EV_CB_INVOKE (p->w, p->events);
2995 EV_FREQUENT_CHECK; 3371 EV_FREQUENT_CHECK;
2996 } 3372 }
2997 } 3373 }
3374 while (pendingpri);
2998} 3375}
2999 3376
3000#if EV_IDLE_ENABLE 3377#if EV_IDLE_ENABLE
3001/* make idle watchers pending. this handles the "call-idle */ 3378/* make idle watchers pending. this handles the "call-idle */
3002/* only when higher priorities are idle" logic */ 3379/* only when higher priorities are idle" logic */
… …
3060 } 3437 }
3061} 3438}
3062 3439
3063#if EV_PERIODIC_ENABLE 3440#if EV_PERIODIC_ENABLE
3064 3441
3065static void noinline 3442noinline
3443static void
3066periodic_recalc (EV_P_ ev_periodic *w) 3444periodic_recalc (EV_P_ ev_periodic *w)
3067{ 3445{
3068 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3446 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3069 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3447 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3070 3448
… …
3128 } 3506 }
3129} 3507}
3130 3508
3131/* simply recalculate all periodics */ 3509/* simply recalculate all periodics */
3132/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3510/* TODO: maybe ensure that at least one event happens when jumping forward? */
3133static void noinline ecb_cold 3511noinline ecb_cold
3512static void
3134periodics_reschedule (EV_P) 3513periodics_reschedule (EV_P)
3135{ 3514{
3136 int i; 3515 int i;
3137 3516
3138 /* adjust periodics after time jump */ 3517 /* adjust periodics after time jump */
… …
3151 reheap (periodics, periodiccnt); 3530 reheap (periodics, periodiccnt);
3152} 3531}
3153#endif 3532#endif
3154 3533
3155/* adjust all timers by a given offset */ 3534/* adjust all timers by a given offset */
3156static void noinline ecb_cold 3535noinline ecb_cold
3536static void
3157timers_reschedule (EV_P_ ev_tstamp adjust) 3537timers_reschedule (EV_P_ ev_tstamp adjust)
3158{ 3538{
3159 int i; 3539 int i;
3160 3540
3161 for (i = 0; i < timercnt; ++i) 3541 for (i = 0; i < timercnt; ++i)
… …
3408 3788
3409 return activecnt; 3789 return activecnt;
3410} 3790}
3411 3791
3412void 3792void
3413ev_break (EV_P_ int how) EV_THROW 3793ev_break (EV_P_ int how) EV_NOEXCEPT
3414{ 3794{
3415 loop_done = how; 3795 loop_done = how;
3416} 3796}
3417 3797
3418void 3798void
3419ev_ref (EV_P) EV_THROW 3799ev_ref (EV_P) EV_NOEXCEPT
3420{ 3800{
3421 ++activecnt; 3801 ++activecnt;
3422} 3802}
3423 3803
3424void 3804void
3425ev_unref (EV_P) EV_THROW 3805ev_unref (EV_P) EV_NOEXCEPT
3426{ 3806{
3427 --activecnt; 3807 --activecnt;
3428} 3808}
3429 3809
3430void 3810void
3431ev_now_update (EV_P) EV_THROW 3811ev_now_update (EV_P) EV_NOEXCEPT
3432{ 3812{
3433 time_update (EV_A_ 1e100); 3813 time_update (EV_A_ 1e100);
3434} 3814}
3435 3815
3436void 3816void
3437ev_suspend (EV_P) EV_THROW 3817ev_suspend (EV_P) EV_NOEXCEPT
3438{ 3818{
3439 ev_now_update (EV_A); 3819 ev_now_update (EV_A);
3440} 3820}
3441 3821
3442void 3822void
3443ev_resume (EV_P) EV_THROW 3823ev_resume (EV_P) EV_NOEXCEPT
3444{ 3824{
3445 ev_tstamp mn_prev = mn_now; 3825 ev_tstamp mn_prev = mn_now;
3446 3826
3447 ev_now_update (EV_A); 3827 ev_now_update (EV_A);
3448 timers_reschedule (EV_A_ mn_now - mn_prev); 3828 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3487 w->pending = 0; 3867 w->pending = 0;
3488 } 3868 }
3489} 3869}
3490 3870
3491int 3871int
3492ev_clear_pending (EV_P_ void *w) EV_THROW 3872ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3493{ 3873{
3494 W w_ = (W)w; 3874 W w_ = (W)w;
3495 int pending = w_->pending; 3875 int pending = w_->pending;
3496 3876
3497 if (expect_true (pending)) 3877 if (expect_true (pending))
… …
3529 w->active = 0; 3909 w->active = 0;
3530} 3910}
3531 3911
3532/*****************************************************************************/ 3912/*****************************************************************************/
3533 3913
3534void noinline 3914noinline
3915void
3535ev_io_start (EV_P_ ev_io *w) EV_THROW 3916ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3536{ 3917{
3537 int fd = w->fd; 3918 int fd = w->fd;
3538 3919
3539 if (expect_false (ev_is_active (w))) 3920 if (expect_false (ev_is_active (w)))
3540 return; 3921 return;
… …
3543 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3924 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3544 3925
3545 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3546 3927
3547 ev_start (EV_A_ (W)w, 1); 3928 ev_start (EV_A_ (W)w, 1);
3548 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3929 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3549 wlist_add (&anfds[fd].head, (WL)w); 3930 wlist_add (&anfds[fd].head, (WL)w);
3550 3931
3551 /* common bug, apparently */ 3932 /* common bug, apparently */
3552 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3933 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3553 3934
… …
3555 w->events &= ~EV__IOFDSET; 3936 w->events &= ~EV__IOFDSET;
3556 3937
3557 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3558} 3939}
3559 3940
3560void noinline 3941noinline
3942void
3561ev_io_stop (EV_P_ ev_io *w) EV_THROW 3943ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3562{ 3944{
3563 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3564 if (expect_false (!ev_is_active (w))) 3946 if (expect_false (!ev_is_active (w)))
3565 return; 3947 return;
3566 3948
… …
3574 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3956 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3575 3957
3576 EV_FREQUENT_CHECK; 3958 EV_FREQUENT_CHECK;
3577} 3959}
3578 3960
3579void noinline 3961noinline
3962void
3580ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3963ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3581{ 3964{
3582 if (expect_false (ev_is_active (w))) 3965 if (expect_false (ev_is_active (w)))
3583 return; 3966 return;
3584 3967
3585 ev_at (w) += mn_now; 3968 ev_at (w) += mn_now;
… …
3588 3971
3589 EV_FREQUENT_CHECK; 3972 EV_FREQUENT_CHECK;
3590 3973
3591 ++timercnt; 3974 ++timercnt;
3592 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3975 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3593 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3976 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3594 ANHE_w (timers [ev_active (w)]) = (WT)w; 3977 ANHE_w (timers [ev_active (w)]) = (WT)w;
3595 ANHE_at_cache (timers [ev_active (w)]); 3978 ANHE_at_cache (timers [ev_active (w)]);
3596 upheap (timers, ev_active (w)); 3979 upheap (timers, ev_active (w));
3597 3980
3598 EV_FREQUENT_CHECK; 3981 EV_FREQUENT_CHECK;
3599 3982
3600 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3983 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3601} 3984}
3602 3985
3603void noinline 3986noinline
3987void
3604ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3988ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3605{ 3989{
3606 clear_pending (EV_A_ (W)w); 3990 clear_pending (EV_A_ (W)w);
3607 if (expect_false (!ev_is_active (w))) 3991 if (expect_false (!ev_is_active (w)))
3608 return; 3992 return;
3609 3993
… …
3628 ev_stop (EV_A_ (W)w); 4012 ev_stop (EV_A_ (W)w);
3629 4013
3630 EV_FREQUENT_CHECK; 4014 EV_FREQUENT_CHECK;
3631} 4015}
3632 4016
3633void noinline 4017noinline
4018void
3634ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4019ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3635{ 4020{
3636 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
3637 4022
3638 clear_pending (EV_A_ (W)w); 4023 clear_pending (EV_A_ (W)w);
3639 4024
… …
3656 4041
3657 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3658} 4043}
3659 4044
3660ev_tstamp 4045ev_tstamp
3661ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4046ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3662{ 4047{
3663 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4048 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3664} 4049}
3665 4050
3666#if EV_PERIODIC_ENABLE 4051#if EV_PERIODIC_ENABLE
3667void noinline 4052noinline
4053void
3668ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4054ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3669{ 4055{
3670 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3671 return; 4057 return;
3672 4058
3673 if (w->reschedule_cb) 4059 if (w->reschedule_cb)
… …
3682 4068
3683 EV_FREQUENT_CHECK; 4069 EV_FREQUENT_CHECK;
3684 4070
3685 ++periodiccnt; 4071 ++periodiccnt;
3686 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4072 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3687 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4073 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3688 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4074 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3689 ANHE_at_cache (periodics [ev_active (w)]); 4075 ANHE_at_cache (periodics [ev_active (w)]);
3690 upheap (periodics, ev_active (w)); 4076 upheap (periodics, ev_active (w));
3691 4077
3692 EV_FREQUENT_CHECK; 4078 EV_FREQUENT_CHECK;
3693 4079
3694 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4080 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3695} 4081}
3696 4082
3697void noinline 4083noinline
4084void
3698ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4085ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3699{ 4086{
3700 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3701 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3702 return; 4089 return;
3703 4090
… …
3720 ev_stop (EV_A_ (W)w); 4107 ev_stop (EV_A_ (W)w);
3721 4108
3722 EV_FREQUENT_CHECK; 4109 EV_FREQUENT_CHECK;
3723} 4110}
3724 4111
3725void noinline 4112noinline
4113void
3726ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4114ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3727{ 4115{
3728 /* TODO: use adjustheap and recalculation */ 4116 /* TODO: use adjustheap and recalculation */
3729 ev_periodic_stop (EV_A_ w); 4117 ev_periodic_stop (EV_A_ w);
3730 ev_periodic_start (EV_A_ w); 4118 ev_periodic_start (EV_A_ w);
3731} 4119}
… …
3735# define SA_RESTART 0 4123# define SA_RESTART 0
3736#endif 4124#endif
3737 4125
3738#if EV_SIGNAL_ENABLE 4126#if EV_SIGNAL_ENABLE
3739 4127
3740void noinline 4128noinline
4129void
3741ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4130ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3742{ 4131{
3743 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3744 return; 4133 return;
3745 4134
3746 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4135 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3817 } 4206 }
3818 4207
3819 EV_FREQUENT_CHECK; 4208 EV_FREQUENT_CHECK;
3820} 4209}
3821 4210
3822void noinline 4211noinline
4212void
3823ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4213ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3824{ 4214{
3825 clear_pending (EV_A_ (W)w); 4215 clear_pending (EV_A_ (W)w);
3826 if (expect_false (!ev_is_active (w))) 4216 if (expect_false (!ev_is_active (w)))
3827 return; 4217 return;
3828 4218
… …
3859#endif 4249#endif
3860 4250
3861#if EV_CHILD_ENABLE 4251#if EV_CHILD_ENABLE
3862 4252
3863void 4253void
3864ev_child_start (EV_P_ ev_child *w) EV_THROW 4254ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3865{ 4255{
3866#if EV_MULTIPLICITY 4256#if EV_MULTIPLICITY
3867 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4257 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3868#endif 4258#endif
3869 if (expect_false (ev_is_active (w))) 4259 if (expect_false (ev_is_active (w)))
… …
3876 4266
3877 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3878} 4268}
3879 4269
3880void 4270void
3881ev_child_stop (EV_P_ ev_child *w) EV_THROW 4271ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3882{ 4272{
3883 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3884 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3885 return; 4275 return;
3886 4276
… …
3903 4293
3904#define DEF_STAT_INTERVAL 5.0074891 4294#define DEF_STAT_INTERVAL 5.0074891
3905#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4295#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3906#define MIN_STAT_INTERVAL 0.1074891 4296#define MIN_STAT_INTERVAL 0.1074891
3907 4297
3908static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4298noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3909 4299
3910#if EV_USE_INOTIFY 4300#if EV_USE_INOTIFY
3911 4301
3912/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4302/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3913# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4303# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3914 4304
3915static void noinline 4305noinline
4306static void
3916infy_add (EV_P_ ev_stat *w) 4307infy_add (EV_P_ ev_stat *w)
3917{ 4308{
3918 w->wd = inotify_add_watch (fs_fd, w->path, 4309 w->wd = inotify_add_watch (fs_fd, w->path,
3919 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4310 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3920 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4311 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3984 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4375 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3985 ev_timer_again (EV_A_ &w->timer); 4376 ev_timer_again (EV_A_ &w->timer);
3986 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4377 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3987} 4378}
3988 4379
3989static void noinline 4380noinline
4381static void
3990infy_del (EV_P_ ev_stat *w) 4382infy_del (EV_P_ ev_stat *w)
3991{ 4383{
3992 int slot; 4384 int slot;
3993 int wd = w->wd; 4385 int wd = w->wd;
3994 4386
… …
4001 4393
4002 /* remove this watcher, if others are watching it, they will rearm */ 4394 /* remove this watcher, if others are watching it, they will rearm */
4003 inotify_rm_watch (fs_fd, wd); 4395 inotify_rm_watch (fs_fd, wd);
4004} 4396}
4005 4397
4006static void noinline 4398noinline
4399static void
4007infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4400infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4008{ 4401{
4009 if (slot < 0) 4402 if (slot < 0)
4010 /* overflow, need to check for all hash slots */ 4403 /* overflow, need to check for all hash slots */
4011 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4404 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4047 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4440 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4048 ofs += sizeof (struct inotify_event) + ev->len; 4441 ofs += sizeof (struct inotify_event) + ev->len;
4049 } 4442 }
4050} 4443}
4051 4444
4052inline_size void ecb_cold 4445inline_size ecb_cold
4446void
4053ev_check_2625 (EV_P) 4447ev_check_2625 (EV_P)
4054{ 4448{
4055 /* kernels < 2.6.25 are borked 4449 /* kernels < 2.6.25 are borked
4056 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4450 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4057 */ 4451 */
… …
4147#else 4541#else
4148# define EV_LSTAT(p,b) lstat (p, b) 4542# define EV_LSTAT(p,b) lstat (p, b)
4149#endif 4543#endif
4150 4544
4151void 4545void
4152ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4546ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4153{ 4547{
4154 if (lstat (w->path, &w->attr) < 0) 4548 if (lstat (w->path, &w->attr) < 0)
4155 w->attr.st_nlink = 0; 4549 w->attr.st_nlink = 0;
4156 else if (!w->attr.st_nlink) 4550 else if (!w->attr.st_nlink)
4157 w->attr.st_nlink = 1; 4551 w->attr.st_nlink = 1;
4158} 4552}
4159 4553
4160static void noinline 4554noinline
4555static void
4161stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4556stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4162{ 4557{
4163 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4558 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4164 4559
4165 ev_statdata prev = w->attr; 4560 ev_statdata prev = w->attr;
… …
4196 ev_feed_event (EV_A_ w, EV_STAT); 4591 ev_feed_event (EV_A_ w, EV_STAT);
4197 } 4592 }
4198} 4593}
4199 4594
4200void 4595void
4201ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4596ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4202{ 4597{
4203 if (expect_false (ev_is_active (w))) 4598 if (expect_false (ev_is_active (w)))
4204 return; 4599 return;
4205 4600
4206 ev_stat_stat (EV_A_ w); 4601 ev_stat_stat (EV_A_ w);
… …
4227 4622
4228 EV_FREQUENT_CHECK; 4623 EV_FREQUENT_CHECK;
4229} 4624}
4230 4625
4231void 4626void
4232ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4627ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4233{ 4628{
4234 clear_pending (EV_A_ (W)w); 4629 clear_pending (EV_A_ (W)w);
4235 if (expect_false (!ev_is_active (w))) 4630 if (expect_false (!ev_is_active (w)))
4236 return; 4631 return;
4237 4632
… …
4253} 4648}
4254#endif 4649#endif
4255 4650
4256#if EV_IDLE_ENABLE 4651#if EV_IDLE_ENABLE
4257void 4652void
4258ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4653ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4259{ 4654{
4260 if (expect_false (ev_is_active (w))) 4655 if (expect_false (ev_is_active (w)))
4261 return; 4656 return;
4262 4657
4263 pri_adjust (EV_A_ (W)w); 4658 pri_adjust (EV_A_ (W)w);
… …
4268 int active = ++idlecnt [ABSPRI (w)]; 4663 int active = ++idlecnt [ABSPRI (w)];
4269 4664
4270 ++idleall; 4665 ++idleall;
4271 ev_start (EV_A_ (W)w, active); 4666 ev_start (EV_A_ (W)w, active);
4272 4667
4273 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4668 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4274 idles [ABSPRI (w)][active - 1] = w; 4669 idles [ABSPRI (w)][active - 1] = w;
4275 } 4670 }
4276 4671
4277 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
4278} 4673}
4279 4674
4280void 4675void
4281ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4676ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4282{ 4677{
4283 clear_pending (EV_A_ (W)w); 4678 clear_pending (EV_A_ (W)w);
4284 if (expect_false (!ev_is_active (w))) 4679 if (expect_false (!ev_is_active (w)))
4285 return; 4680 return;
4286 4681
… …
4300} 4695}
4301#endif 4696#endif
4302 4697
4303#if EV_PREPARE_ENABLE 4698#if EV_PREPARE_ENABLE
4304void 4699void
4305ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4700ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4306{ 4701{
4307 if (expect_false (ev_is_active (w))) 4702 if (expect_false (ev_is_active (w)))
4308 return; 4703 return;
4309 4704
4310 EV_FREQUENT_CHECK; 4705 EV_FREQUENT_CHECK;
4311 4706
4312 ev_start (EV_A_ (W)w, ++preparecnt); 4707 ev_start (EV_A_ (W)w, ++preparecnt);
4313 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4708 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4314 prepares [preparecnt - 1] = w; 4709 prepares [preparecnt - 1] = w;
4315 4710
4316 EV_FREQUENT_CHECK; 4711 EV_FREQUENT_CHECK;
4317} 4712}
4318 4713
4319void 4714void
4320ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4715ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4321{ 4716{
4322 clear_pending (EV_A_ (W)w); 4717 clear_pending (EV_A_ (W)w);
4323 if (expect_false (!ev_is_active (w))) 4718 if (expect_false (!ev_is_active (w)))
4324 return; 4719 return;
4325 4720
… …
4338} 4733}
4339#endif 4734#endif
4340 4735
4341#if EV_CHECK_ENABLE 4736#if EV_CHECK_ENABLE
4342void 4737void
4343ev_check_start (EV_P_ ev_check *w) EV_THROW 4738ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4344{ 4739{
4345 if (expect_false (ev_is_active (w))) 4740 if (expect_false (ev_is_active (w)))
4346 return; 4741 return;
4347 4742
4348 EV_FREQUENT_CHECK; 4743 EV_FREQUENT_CHECK;
4349 4744
4350 ev_start (EV_A_ (W)w, ++checkcnt); 4745 ev_start (EV_A_ (W)w, ++checkcnt);
4351 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4746 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4352 checks [checkcnt - 1] = w; 4747 checks [checkcnt - 1] = w;
4353 4748
4354 EV_FREQUENT_CHECK; 4749 EV_FREQUENT_CHECK;
4355} 4750}
4356 4751
4357void 4752void
4358ev_check_stop (EV_P_ ev_check *w) EV_THROW 4753ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4359{ 4754{
4360 clear_pending (EV_A_ (W)w); 4755 clear_pending (EV_A_ (W)w);
4361 if (expect_false (!ev_is_active (w))) 4756 if (expect_false (!ev_is_active (w)))
4362 return; 4757 return;
4363 4758
… …
4375 EV_FREQUENT_CHECK; 4770 EV_FREQUENT_CHECK;
4376} 4771}
4377#endif 4772#endif
4378 4773
4379#if EV_EMBED_ENABLE 4774#if EV_EMBED_ENABLE
4380void noinline 4775noinline
4776void
4381ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4777ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4382{ 4778{
4383 ev_run (w->other, EVRUN_NOWAIT); 4779 ev_run (w->other, EVRUN_NOWAIT);
4384} 4780}
4385 4781
4386static void 4782static void
… …
4434 ev_idle_stop (EV_A_ idle); 4830 ev_idle_stop (EV_A_ idle);
4435} 4831}
4436#endif 4832#endif
4437 4833
4438void 4834void
4439ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4835ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4440{ 4836{
4441 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4442 return; 4838 return;
4443 4839
4444 { 4840 {
… …
4465 4861
4466 EV_FREQUENT_CHECK; 4862 EV_FREQUENT_CHECK;
4467} 4863}
4468 4864
4469void 4865void
4470ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4866ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4471{ 4867{
4472 clear_pending (EV_A_ (W)w); 4868 clear_pending (EV_A_ (W)w);
4473 if (expect_false (!ev_is_active (w))) 4869 if (expect_false (!ev_is_active (w)))
4474 return; 4870 return;
4475 4871
… …
4485} 4881}
4486#endif 4882#endif
4487 4883
4488#if EV_FORK_ENABLE 4884#if EV_FORK_ENABLE
4489void 4885void
4490ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4886ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4491{ 4887{
4492 if (expect_false (ev_is_active (w))) 4888 if (expect_false (ev_is_active (w)))
4493 return; 4889 return;
4494 4890
4495 EV_FREQUENT_CHECK; 4891 EV_FREQUENT_CHECK;
4496 4892
4497 ev_start (EV_A_ (W)w, ++forkcnt); 4893 ev_start (EV_A_ (W)w, ++forkcnt);
4498 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4894 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4499 forks [forkcnt - 1] = w; 4895 forks [forkcnt - 1] = w;
4500 4896
4501 EV_FREQUENT_CHECK; 4897 EV_FREQUENT_CHECK;
4502} 4898}
4503 4899
4504void 4900void
4505ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4901ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4506{ 4902{
4507 clear_pending (EV_A_ (W)w); 4903 clear_pending (EV_A_ (W)w);
4508 if (expect_false (!ev_is_active (w))) 4904 if (expect_false (!ev_is_active (w)))
4509 return; 4905 return;
4510 4906
… …
4523} 4919}
4524#endif 4920#endif
4525 4921
4526#if EV_CLEANUP_ENABLE 4922#if EV_CLEANUP_ENABLE
4527void 4923void
4528ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4924ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4529{ 4925{
4530 if (expect_false (ev_is_active (w))) 4926 if (expect_false (ev_is_active (w)))
4531 return; 4927 return;
4532 4928
4533 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4534 4930
4535 ev_start (EV_A_ (W)w, ++cleanupcnt); 4931 ev_start (EV_A_ (W)w, ++cleanupcnt);
4536 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4932 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4537 cleanups [cleanupcnt - 1] = w; 4933 cleanups [cleanupcnt - 1] = w;
4538 4934
4539 /* cleanup watchers should never keep a refcount on the loop */ 4935 /* cleanup watchers should never keep a refcount on the loop */
4540 ev_unref (EV_A); 4936 ev_unref (EV_A);
4541 EV_FREQUENT_CHECK; 4937 EV_FREQUENT_CHECK;
4542} 4938}
4543 4939
4544void 4940void
4545ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4941ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4546{ 4942{
4547 clear_pending (EV_A_ (W)w); 4943 clear_pending (EV_A_ (W)w);
4548 if (expect_false (!ev_is_active (w))) 4944 if (expect_false (!ev_is_active (w)))
4549 return; 4945 return;
4550 4946
… …
4564} 4960}
4565#endif 4961#endif
4566 4962
4567#if EV_ASYNC_ENABLE 4963#if EV_ASYNC_ENABLE
4568void 4964void
4569ev_async_start (EV_P_ ev_async *w) EV_THROW 4965ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4570{ 4966{
4571 if (expect_false (ev_is_active (w))) 4967 if (expect_false (ev_is_active (w)))
4572 return; 4968 return;
4573 4969
4574 w->sent = 0; 4970 w->sent = 0;
… …
4576 evpipe_init (EV_A); 4972 evpipe_init (EV_A);
4577 4973
4578 EV_FREQUENT_CHECK; 4974 EV_FREQUENT_CHECK;
4579 4975
4580 ev_start (EV_A_ (W)w, ++asynccnt); 4976 ev_start (EV_A_ (W)w, ++asynccnt);
4581 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4977 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4582 asyncs [asynccnt - 1] = w; 4978 asyncs [asynccnt - 1] = w;
4583 4979
4584 EV_FREQUENT_CHECK; 4980 EV_FREQUENT_CHECK;
4585} 4981}
4586 4982
4587void 4983void
4588ev_async_stop (EV_P_ ev_async *w) EV_THROW 4984ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4589{ 4985{
4590 clear_pending (EV_A_ (W)w); 4986 clear_pending (EV_A_ (W)w);
4591 if (expect_false (!ev_is_active (w))) 4987 if (expect_false (!ev_is_active (w)))
4592 return; 4988 return;
4593 4989
… …
4604 5000
4605 EV_FREQUENT_CHECK; 5001 EV_FREQUENT_CHECK;
4606} 5002}
4607 5003
4608void 5004void
4609ev_async_send (EV_P_ ev_async *w) EV_THROW 5005ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4610{ 5006{
4611 w->sent = 1; 5007 w->sent = 1;
4612 evpipe_write (EV_A_ &async_pending); 5008 evpipe_write (EV_A_ &async_pending);
4613} 5009}
4614#endif 5010#endif
… …
4651 5047
4652 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5048 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4653} 5049}
4654 5050
4655void 5051void
4656ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5052ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4657{ 5053{
4658 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5054 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4659
4660 if (expect_false (!once))
4661 {
4662 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4663 return;
4664 }
4665 5055
4666 once->cb = cb; 5056 once->cb = cb;
4667 once->arg = arg; 5057 once->arg = arg;
4668 5058
4669 ev_init (&once->io, once_cb_io); 5059 ev_init (&once->io, once_cb_io);
… …
4682} 5072}
4683 5073
4684/*****************************************************************************/ 5074/*****************************************************************************/
4685 5075
4686#if EV_WALK_ENABLE 5076#if EV_WALK_ENABLE
4687void ecb_cold 5077ecb_cold
5078void
4688ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5079ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4689{ 5080{
4690 int i, j; 5081 int i, j;
4691 ev_watcher_list *wl, *wn; 5082 ev_watcher_list *wl, *wn;
4692 5083
4693 if (types & (EV_IO | EV_EMBED)) 5084 if (types & (EV_IO | EV_EMBED))

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