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Comparing libev/ev.c (file contents):
Revision 1.450 by root, Mon Oct 8 15:43:35 2012 UTC vs.
Revision 1.490 by root, Thu Jun 20 22:44:59 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
… …
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
… …
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 243#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 244# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 245#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 246# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 247#else
246# error "unable to find value for NSIG, please report" 248# 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 249#endif
251 250
252#ifndef EV_USE_FLOOR 251#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 252# define EV_USE_FLOOR 0
254#endif 253#endif
255 254
256#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 258# else
260# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
260# endif
261#endif
262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
261# endif 269# endif
262#endif 270#endif
263 271
264#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 315
308#ifndef EV_USE_PORT 316#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 317# define EV_USE_PORT 0
310#endif 318#endif
311 319
320#ifndef EV_USE_LINUXAIO
321# define EV_USE_LINUXAIO 0
322#endif
323
312#ifndef EV_USE_INOTIFY 324#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 326# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 327# else
316# define EV_USE_INOTIFY 0 328# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 367# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 368#endif
357 369
358#ifndef EV_HEAP_CACHE_AT 370#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 371# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
372#endif
373
374#ifdef __ANDROID__
375/* supposedly, android doesn't typedef fd_mask */
376# undef EV_USE_SELECT
377# define EV_USE_SELECT 0
378/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
379# undef EV_USE_CLOCK_SYSCALL
380# define EV_USE_CLOCK_SYSCALL 0
381#endif
382
383/* aix's poll.h seems to cause lots of trouble */
384#ifdef _AIX
385/* AIX has a completely broken poll.h header */
386# undef EV_USE_POLL
387# define EV_USE_POLL 0
388#endif
389
390#if EV_USE_LINUXAIO
391# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
360#endif 392#endif
361 393
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 394/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 395/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 396#if EV_USE_CLOCK_SYSCALL
… …
372# define EV_USE_CLOCK_SYSCALL 0 404# define EV_USE_CLOCK_SYSCALL 0
373# endif 405# endif
374#endif 406#endif
375 407
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 408/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383 409
384#ifndef CLOCK_MONOTONIC 410#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 411# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 412# define EV_USE_MONOTONIC 0
387#endif 413#endif
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 501/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 502/* ECB.H BEGIN */
477/* 503/*
478 * libecb - http://software.schmorp.de/pkg/libecb 504 * libecb - http://software.schmorp.de/pkg/libecb
479 * 505 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 506 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 507 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 508 * All rights reserved.
483 * 509 *
484 * Redistribution and use in source and binary forms, with or without modifica- 510 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 511 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 525 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 526 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 527 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 528 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 529 * OF THE POSSIBILITY OF SUCH DAMAGE.
530 *
531 * Alternatively, the contents of this file may be used under the terms of
532 * the GNU General Public License ("GPL") version 2 or any later version,
533 * in which case the provisions of the GPL are applicable instead of
534 * the above. If you wish to allow the use of your version of this file
535 * only under the terms of the GPL and not to allow others to use your
536 * version of this file under the BSD license, indicate your decision
537 * by deleting the provisions above and replace them with the notice
538 * and other provisions required by the GPL. If you do not delete the
539 * provisions above, a recipient may use your version of this file under
540 * either the BSD or the GPL.
504 */ 541 */
505 542
506#ifndef ECB_H 543#ifndef ECB_H
507#define ECB_H 544#define ECB_H
508 545
509/* 16 bits major, 16 bits minor */ 546/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010002 547#define ECB_VERSION 0x00010005
511 548
512#ifdef _WIN32 549#ifdef _WIN32
513 typedef signed char int8_t; 550 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 551 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 552 typedef signed short int16_t;
… …
532 typedef uint32_t uintptr_t; 569 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 570 typedef int32_t intptr_t;
534 #endif 571 #endif
535#else 572#else
536 #include <inttypes.h> 573 #include <inttypes.h>
537 #if UINTMAX_MAX > 0xffffffffU 574 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
538 #define ECB_PTRSIZE 8 575 #define ECB_PTRSIZE 8
539 #else 576 #else
540 #define ECB_PTRSIZE 4 577 #define ECB_PTRSIZE 4
578 #endif
579#endif
580
581#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
582#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
583
584/* work around x32 idiocy by defining proper macros */
585#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
586 #if _ILP32
587 #define ECB_AMD64_X32 1
588 #else
589 #define ECB_AMD64 1
541 #endif 590 #endif
542#endif 591#endif
543 592
544/* many compilers define _GNUC_ to some versions but then only implement 593/* many compilers define _GNUC_ to some versions but then only implement
545 * what their idiot authors think are the "more important" extensions, 594 * what their idiot authors think are the "more important" extensions,
546 * causing enormous grief in return for some better fake benchmark numbers. 595 * causing enormous grief in return for some better fake benchmark numbers.
547 * or so. 596 * or so.
548 * we try to detect these and simply assume they are not gcc - if they have 597 * we try to detect these and simply assume they are not gcc - if they have
549 * an issue with that they should have done it right in the first place. 598 * an issue with that they should have done it right in the first place.
550 */ 599 */
551#ifndef ECB_GCC_VERSION
552 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 600#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
553 #define ECB_GCC_VERSION(major,minor) 0 601 #define ECB_GCC_VERSION(major,minor) 0
554 #else 602#else
555 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 603 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
556 #endif 604#endif
557#endif
558 605
559#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 606#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
560#define ECB_C99 (__STDC_VERSION__ >= 199901L) 607
561#define ECB_C11 (__STDC_VERSION__ >= 201112L) 608#if __clang__ && defined __has_builtin
609 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
610#else
611 #define ECB_CLANG_BUILTIN(x) 0
612#endif
613
614#if __clang__ && defined __has_extension
615 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
616#else
617 #define ECB_CLANG_EXTENSION(x) 0
618#endif
619
562#define ECB_CPP (__cplusplus+0) 620#define ECB_CPP (__cplusplus+0)
563#define ECB_CPP11 (__cplusplus >= 201103L) 621#define ECB_CPP11 (__cplusplus >= 201103L)
622#define ECB_CPP14 (__cplusplus >= 201402L)
623#define ECB_CPP17 (__cplusplus >= 201703L)
624
625#if ECB_CPP
626 #define ECB_C 0
627 #define ECB_STDC_VERSION 0
628#else
629 #define ECB_C 1
630 #define ECB_STDC_VERSION __STDC_VERSION__
631#endif
632
633#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
634#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
635#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
564 636
565#if ECB_CPP 637#if ECB_CPP
566 #define ECB_EXTERN_C extern "C" 638 #define ECB_EXTERN_C extern "C"
567 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 639 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
568 #define ECB_EXTERN_C_END } 640 #define ECB_EXTERN_C_END }
… …
581 #define ECB_NO_SMP 1 653 #define ECB_NO_SMP 1
582#endif 654#endif
583 655
584#if ECB_NO_SMP 656#if ECB_NO_SMP
585 #define ECB_MEMORY_FENCE do { } while (0) 657 #define ECB_MEMORY_FENCE do { } while (0)
658#endif
659
660/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
661#if __xlC__ && ECB_CPP
662 #include <builtins.h>
663#endif
664
665#if 1400 <= _MSC_VER
666 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
586#endif 667#endif
587 668
588#ifndef ECB_MEMORY_FENCE 669#ifndef ECB_MEMORY_FENCE
589 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 670 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
590 #if __i386 || __i386__ 671 #if __i386 || __i386__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
592 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 673 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
593 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 674 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
594 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 675 #elif ECB_GCC_AMD64
595 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 676 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
596 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 677 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
597 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 678 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
598 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 679 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
681 #elif defined __ARM_ARCH_2__ \
682 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
683 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
684 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
685 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
686 || defined __ARM_ARCH_5TEJ__
687 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
600 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 688 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
601 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 689 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
690 || defined __ARM_ARCH_6T2__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
603 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 692 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
604 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 693 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
606 #elif __sparc || __sparc__ 695 #elif __aarch64__
696 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
697 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 699 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 700 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610 #elif defined __s390__ || defined __s390x__ 701 #elif defined __s390__ || defined __s390x__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612 #elif defined __mips__ 703 #elif defined __mips__
704 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
705 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
613 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 706 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
614 #elif defined __alpha__ 707 #elif defined __alpha__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616 #elif defined __hppa__ 709 #elif defined __hppa__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 710 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 711 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
619 #elif defined __ia64__ 712 #elif defined __ia64__
620 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
714 #elif defined __m68k__
715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
716 #elif defined __m88k__
717 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
718 #elif defined __sh__
719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
621 #endif 720 #endif
622 #endif 721 #endif
623#endif 722#endif
624 723
625#ifndef ECB_MEMORY_FENCE 724#ifndef ECB_MEMORY_FENCE
626 #if ECB_GCC_VERSION(4,7) 725 #if ECB_GCC_VERSION(4,7)
627 /* see comment below (stdatomic.h) about the C11 memory model. */ 726 /* see comment below (stdatomic.h) about the C11 memory model. */
628 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 727 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
728 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
729 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
629 730
630 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 731 #elif ECB_CLANG_EXTENSION(c_atomic)
631 * without risking compile time errors with other compilers. We *could*
632 * define our own ecb_clang_has_feature, but I just can't be bothered to work
633 * around this shit time and again.
634 * #elif defined __clang && __has_feature (cxx_atomic)
635 * // see comment below (stdatomic.h) about the C11 memory model. 732 /* see comment below (stdatomic.h) about the C11 memory model. */
636 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 733 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
637 */ 734 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
735 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
638 736
639 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 737 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
640 #define ECB_MEMORY_FENCE __sync_synchronize () 738 #define ECB_MEMORY_FENCE __sync_synchronize ()
739 #elif _MSC_VER >= 1500 /* VC++ 2008 */
740 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
741 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
742 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
743 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
744 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
641 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 745 #elif _MSC_VER >= 1400 /* VC++ 2005 */
642 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 746 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
643 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 747 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
644 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 748 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
645 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 749 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
665 /* any fence other than seq_cst, which isn't very efficient for us. */ 769 /* any fence other than seq_cst, which isn't very efficient for us. */
666 /* Why that is, we don't know - either the C11 memory model is quite useless */ 770 /* Why that is, we don't know - either the C11 memory model is quite useless */
667 /* for most usages, or gcc and clang have a bug */ 771 /* for most usages, or gcc and clang have a bug */
668 /* I *currently* lean towards the latter, and inefficiently implement */ 772 /* I *currently* lean towards the latter, and inefficiently implement */
669 /* all three of ecb's fences as a seq_cst fence */ 773 /* all three of ecb's fences as a seq_cst fence */
774 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
775 /* for all __atomic_thread_fence's except seq_cst */
670 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 776 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
671 #endif 777 #endif
672#endif 778#endif
673 779
674#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
… …
697 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 803 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
698#endif 804#endif
699 805
700/*****************************************************************************/ 806/*****************************************************************************/
701 807
702#if __cplusplus 808#if ECB_CPP
703 #define ecb_inline static inline 809 #define ecb_inline static inline
704#elif ECB_GCC_VERSION(2,5) 810#elif ECB_GCC_VERSION(2,5)
705 #define ecb_inline static __inline__ 811 #define ecb_inline static __inline__
706#elif ECB_C99 812#elif ECB_C99
707 #define ecb_inline static inline 813 #define ecb_inline static inline
… …
721 827
722#define ECB_CONCAT_(a, b) a ## b 828#define ECB_CONCAT_(a, b) a ## b
723#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 829#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
724#define ECB_STRINGIFY_(a) # a 830#define ECB_STRINGIFY_(a) # a
725#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 831#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
832#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
726 833
727#define ecb_function_ ecb_inline 834#define ecb_function_ ecb_inline
728 835
729#if ECB_GCC_VERSION(3,1) 836#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
730 #define ecb_attribute(attrlist) __attribute__(attrlist) 837 #define ecb_attribute(attrlist) __attribute__ (attrlist)
838#else
839 #define ecb_attribute(attrlist)
840#endif
841
842#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
731 #define ecb_is_constant(expr) __builtin_constant_p (expr) 843 #define ecb_is_constant(expr) __builtin_constant_p (expr)
844#else
845 /* possible C11 impl for integral types
846 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
847 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
848
849 #define ecb_is_constant(expr) 0
850#endif
851
852#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
732 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 853 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
854#else
855 #define ecb_expect(expr,value) (expr)
856#endif
857
858#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
733 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 859 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
734#else 860#else
735 #define ecb_attribute(attrlist)
736 #define ecb_is_constant(expr) 0
737 #define ecb_expect(expr,value) (expr)
738 #define ecb_prefetch(addr,rw,locality) 861 #define ecb_prefetch(addr,rw,locality)
739#endif 862#endif
740 863
741/* no emulation for ecb_decltype */ 864/* no emulation for ecb_decltype */
742#if ECB_GCC_VERSION(4,5) 865#if ECB_CPP11
866 // older implementations might have problems with decltype(x)::type, work around it
867 template<class T> struct ecb_decltype_t { typedef T type; };
743 #define ecb_decltype(x) __decltype(x) 868 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
744#elif ECB_GCC_VERSION(3,0) 869#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
745 #define ecb_decltype(x) __typeof(x) 870 #define ecb_decltype(x) __typeof__ (x)
746#endif 871#endif
747 872
873#if _MSC_VER >= 1300
874 #define ecb_deprecated __declspec (deprecated)
875#else
876 #define ecb_deprecated ecb_attribute ((__deprecated__))
877#endif
878
879#if _MSC_VER >= 1500
880 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
881#elif ECB_GCC_VERSION(4,5)
882 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
883#else
884 #define ecb_deprecated_message(msg) ecb_deprecated
885#endif
886
887#if _MSC_VER >= 1400
888 #define ecb_noinline __declspec (noinline)
889#else
748#define ecb_noinline ecb_attribute ((__noinline__)) 890 #define ecb_noinline ecb_attribute ((__noinline__))
891#endif
892
749#define ecb_unused ecb_attribute ((__unused__)) 893#define ecb_unused ecb_attribute ((__unused__))
750#define ecb_const ecb_attribute ((__const__)) 894#define ecb_const ecb_attribute ((__const__))
751#define ecb_pure ecb_attribute ((__pure__)) 895#define ecb_pure ecb_attribute ((__pure__))
752 896
753#if ECB_C11 897#if ECB_C11 || __IBMC_NORETURN
898 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
754 #define ecb_noreturn _Noreturn 899 #define ecb_noreturn _Noreturn
900#elif ECB_CPP11
901 #define ecb_noreturn [[noreturn]]
902#elif _MSC_VER >= 1200
903 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
904 #define ecb_noreturn __declspec (noreturn)
755#else 905#else
756 #define ecb_noreturn ecb_attribute ((__noreturn__)) 906 #define ecb_noreturn ecb_attribute ((__noreturn__))
757#endif 907#endif
758 908
759#if ECB_GCC_VERSION(4,3) 909#if ECB_GCC_VERSION(4,3)
… …
774/* for compatibility to the rest of the world */ 924/* for compatibility to the rest of the world */
775#define ecb_likely(expr) ecb_expect_true (expr) 925#define ecb_likely(expr) ecb_expect_true (expr)
776#define ecb_unlikely(expr) ecb_expect_false (expr) 926#define ecb_unlikely(expr) ecb_expect_false (expr)
777 927
778/* count trailing zero bits and count # of one bits */ 928/* count trailing zero bits and count # of one bits */
779#if ECB_GCC_VERSION(3,4) 929#if ECB_GCC_VERSION(3,4) \
930 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
931 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
932 && ECB_CLANG_BUILTIN(__builtin_popcount))
780 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 933 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
781 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 934 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
782 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 935 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
783 #define ecb_ctz32(x) __builtin_ctz (x) 936 #define ecb_ctz32(x) __builtin_ctz (x)
784 #define ecb_ctz64(x) __builtin_ctzll (x) 937 #define ecb_ctz64(x) __builtin_ctzll (x)
785 #define ecb_popcount32(x) __builtin_popcount (x) 938 #define ecb_popcount32(x) __builtin_popcount (x)
786 /* no popcountll */ 939 /* no popcountll */
787#else 940#else
788 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 941 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
789 ecb_function_ int 942 ecb_function_ ecb_const int
790 ecb_ctz32 (uint32_t x) 943 ecb_ctz32 (uint32_t x)
791 { 944 {
945#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
946 unsigned long r;
947 _BitScanForward (&r, x);
948 return (int)r;
949#else
792 int r = 0; 950 int r = 0;
793 951
794 x &= ~x + 1; /* this isolates the lowest bit */ 952 x &= ~x + 1; /* this isolates the lowest bit */
795 953
796#if ECB_branchless_on_i386 954#if ECB_branchless_on_i386
… …
806 if (x & 0xff00ff00) r += 8; 964 if (x & 0xff00ff00) r += 8;
807 if (x & 0xffff0000) r += 16; 965 if (x & 0xffff0000) r += 16;
808#endif 966#endif
809 967
810 return r; 968 return r;
969#endif
811 } 970 }
812 971
813 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 972 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
814 ecb_function_ int 973 ecb_function_ ecb_const int
815 ecb_ctz64 (uint64_t x) 974 ecb_ctz64 (uint64_t x)
816 { 975 {
976#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
977 unsigned long r;
978 _BitScanForward64 (&r, x);
979 return (int)r;
980#else
817 int shift = x & 0xffffffffU ? 0 : 32; 981 int shift = x & 0xffffffff ? 0 : 32;
818 return ecb_ctz32 (x >> shift) + shift; 982 return ecb_ctz32 (x >> shift) + shift;
983#endif
819 } 984 }
820 985
821 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 986 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
822 ecb_function_ int 987 ecb_function_ ecb_const int
823 ecb_popcount32 (uint32_t x) 988 ecb_popcount32 (uint32_t x)
824 { 989 {
825 x -= (x >> 1) & 0x55555555; 990 x -= (x >> 1) & 0x55555555;
826 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 991 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
827 x = ((x >> 4) + x) & 0x0f0f0f0f; 992 x = ((x >> 4) + x) & 0x0f0f0f0f;
828 x *= 0x01010101; 993 x *= 0x01010101;
829 994
830 return x >> 24; 995 return x >> 24;
831 } 996 }
832 997
833 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
834 ecb_function_ int ecb_ld32 (uint32_t x) 999 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
835 { 1000 {
1001#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1002 unsigned long r;
1003 _BitScanReverse (&r, x);
1004 return (int)r;
1005#else
836 int r = 0; 1006 int r = 0;
837 1007
838 if (x >> 16) { x >>= 16; r += 16; } 1008 if (x >> 16) { x >>= 16; r += 16; }
839 if (x >> 8) { x >>= 8; r += 8; } 1009 if (x >> 8) { x >>= 8; r += 8; }
840 if (x >> 4) { x >>= 4; r += 4; } 1010 if (x >> 4) { x >>= 4; r += 4; }
841 if (x >> 2) { x >>= 2; r += 2; } 1011 if (x >> 2) { x >>= 2; r += 2; }
842 if (x >> 1) { r += 1; } 1012 if (x >> 1) { r += 1; }
843 1013
844 return r; 1014 return r;
1015#endif
845 } 1016 }
846 1017
847 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
848 ecb_function_ int ecb_ld64 (uint64_t x) 1019 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
849 { 1020 {
1021#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1022 unsigned long r;
1023 _BitScanReverse64 (&r, x);
1024 return (int)r;
1025#else
850 int r = 0; 1026 int r = 0;
851 1027
852 if (x >> 32) { x >>= 32; r += 32; } 1028 if (x >> 32) { x >>= 32; r += 32; }
853 1029
854 return r + ecb_ld32 (x); 1030 return r + ecb_ld32 (x);
1031#endif
855 } 1032 }
856#endif 1033#endif
857 1034
858ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1035ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
859ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1036ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
860ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1037ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
861ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1038ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
862 1039
863ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1040ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
864ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1041ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
865{ 1042{
866 return ( (x * 0x0802U & 0x22110U) 1043 return ( (x * 0x0802U & 0x22110U)
867 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1044 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
868} 1045}
869 1046
870ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1047ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
871ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1048ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
872{ 1049{
873 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1050 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
874 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1051 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
875 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
876 x = ( x >> 8 ) | ( x << 8); 1053 x = ( x >> 8 ) | ( x << 8);
877 1054
878 return x; 1055 return x;
879} 1056}
880 1057
881ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1058ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
882ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1059ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
883{ 1060{
884 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1061 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
885 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1062 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
886 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1063 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
887 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1064 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
890 return x; 1067 return x;
891} 1068}
892 1069
893/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1070/* popcount64 is only available on 64 bit cpus as gcc builtin */
894/* so for this version we are lazy */ 1071/* so for this version we are lazy */
895ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1072ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
896ecb_function_ int 1073ecb_function_ ecb_const int
897ecb_popcount64 (uint64_t x) 1074ecb_popcount64 (uint64_t x)
898{ 1075{
899 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1076 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
900} 1077}
901 1078
902ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1079ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
903ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1080ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
904ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1081ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
905ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1082ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
906ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1083ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
907ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1084ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
908ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1085ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
909ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1086ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
910 1087
911ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1088ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
912ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1089ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
913ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1090ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
914ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1091ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
915ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1092ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
916ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1093ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
917ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1094ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
918ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1095ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
919 1096
920#if ECB_GCC_VERSION(4,3) 1097#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1098 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1099 #define ecb_bswap16(x) __builtin_bswap16 (x)
1100 #else
921 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1101 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1102 #endif
922 #define ecb_bswap32(x) __builtin_bswap32 (x) 1103 #define ecb_bswap32(x) __builtin_bswap32 (x)
923 #define ecb_bswap64(x) __builtin_bswap64 (x) 1104 #define ecb_bswap64(x) __builtin_bswap64 (x)
1105#elif _MSC_VER
1106 #include <stdlib.h>
1107 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1108 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1109 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
924#else 1110#else
925 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1111 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
926 ecb_function_ uint16_t 1112 ecb_function_ ecb_const uint16_t
927 ecb_bswap16 (uint16_t x) 1113 ecb_bswap16 (uint16_t x)
928 { 1114 {
929 return ecb_rotl16 (x, 8); 1115 return ecb_rotl16 (x, 8);
930 } 1116 }
931 1117
932 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1118 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
933 ecb_function_ uint32_t 1119 ecb_function_ ecb_const uint32_t
934 ecb_bswap32 (uint32_t x) 1120 ecb_bswap32 (uint32_t x)
935 { 1121 {
936 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1122 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
937 } 1123 }
938 1124
939 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1125 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
940 ecb_function_ uint64_t 1126 ecb_function_ ecb_const uint64_t
941 ecb_bswap64 (uint64_t x) 1127 ecb_bswap64 (uint64_t x)
942 { 1128 {
943 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1129 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
944 } 1130 }
945#endif 1131#endif
946 1132
947#if ECB_GCC_VERSION(4,5) 1133#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
948 #define ecb_unreachable() __builtin_unreachable () 1134 #define ecb_unreachable() __builtin_unreachable ()
949#else 1135#else
950 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1136 /* this seems to work fine, but gcc always emits a warning for it :/ */
951 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1137 ecb_inline ecb_noreturn void ecb_unreachable (void);
952 ecb_inline void ecb_unreachable (void) { } 1138 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
953#endif 1139#endif
954 1140
955/* try to tell the compiler that some condition is definitely true */ 1141/* try to tell the compiler that some condition is definitely true */
956#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1142#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
957 1143
958ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
959ecb_inline unsigned char 1145ecb_inline ecb_const uint32_t
960ecb_byteorder_helper (void) 1146ecb_byteorder_helper (void)
961{ 1147{
962 /* the union code still generates code under pressure in gcc, */ 1148 /* the union code still generates code under pressure in gcc, */
963 /* but less than using pointers, and always seems to */ 1149 /* but less than using pointers, and always seems to */
964 /* successfully return a constant. */ 1150 /* successfully return a constant. */
965 /* the reason why we have this horrible preprocessor mess */ 1151 /* the reason why we have this horrible preprocessor mess */
966 /* is to avoid it in all cases, at least on common architectures */ 1152 /* is to avoid it in all cases, at least on common architectures */
967 /* or when using a recent enough gcc version (>= 4.6) */ 1153 /* or when using a recent enough gcc version (>= 4.6) */
968#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
969 return 0x44;
970#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1154#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1155 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1156 #define ECB_LITTLE_ENDIAN 1
971 return 0x44; 1157 return 0x44332211;
972#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1158#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1159 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1160 #define ECB_BIG_ENDIAN 1
973 return 0x11; 1161 return 0x11223344;
974#else 1162#else
975 union 1163 union
976 { 1164 {
1165 uint8_t c[4];
977 uint32_t i; 1166 uint32_t u;
978 uint8_t c;
979 } u = { 0x11223344 }; 1167 } u = { 0x11, 0x22, 0x33, 0x44 };
980 return u.c; 1168 return u.u;
981#endif 1169#endif
982} 1170}
983 1171
984ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1172ecb_inline ecb_const ecb_bool ecb_big_endian (void);
985ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1173ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
986ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1174ecb_inline ecb_const ecb_bool ecb_little_endian (void);
987ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1175ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
988 1176
989#if ECB_GCC_VERSION(3,0) || ECB_C99 1177#if ECB_GCC_VERSION(3,0) || ECB_C99
990 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1178 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
991#else 1179#else
992 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1180 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
993#endif 1181#endif
994 1182
995#if __cplusplus 1183#if ECB_CPP
996 template<typename T> 1184 template<typename T>
997 static inline T ecb_div_rd (T val, T div) 1185 static inline T ecb_div_rd (T val, T div)
998 { 1186 {
999 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1187 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1000 } 1188 }
… …
1017 } 1205 }
1018#else 1206#else
1019 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1207 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1020#endif 1208#endif
1021 1209
1210ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1211ecb_function_ ecb_const uint32_t
1212ecb_binary16_to_binary32 (uint32_t x)
1213{
1214 unsigned int s = (x & 0x8000) << (31 - 15);
1215 int e = (x >> 10) & 0x001f;
1216 unsigned int m = x & 0x03ff;
1217
1218 if (ecb_expect_false (e == 31))
1219 /* infinity or NaN */
1220 e = 255 - (127 - 15);
1221 else if (ecb_expect_false (!e))
1222 {
1223 if (ecb_expect_true (!m))
1224 /* zero, handled by code below by forcing e to 0 */
1225 e = 0 - (127 - 15);
1226 else
1227 {
1228 /* subnormal, renormalise */
1229 unsigned int s = 10 - ecb_ld32 (m);
1230
1231 m = (m << s) & 0x3ff; /* mask implicit bit */
1232 e -= s - 1;
1233 }
1234 }
1235
1236 /* e and m now are normalised, or zero, (or inf or nan) */
1237 e += 127 - 15;
1238
1239 return s | (e << 23) | (m << (23 - 10));
1240}
1241
1242ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1243ecb_function_ ecb_const uint16_t
1244ecb_binary32_to_binary16 (uint32_t x)
1245{
1246 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1247 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1248 unsigned int m = x & 0x007fffff;
1249
1250 x &= 0x7fffffff;
1251
1252 /* if it's within range of binary16 normals, use fast path */
1253 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1254 {
1255 /* mantissa round-to-even */
1256 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1257
1258 /* handle overflow */
1259 if (ecb_expect_false (m >= 0x00800000))
1260 {
1261 m >>= 1;
1262 e += 1;
1263 }
1264
1265 return s | (e << 10) | (m >> (23 - 10));
1266 }
1267
1268 /* handle large numbers and infinity */
1269 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1270 return s | 0x7c00;
1271
1272 /* handle zero, subnormals and small numbers */
1273 if (ecb_expect_true (x < 0x38800000))
1274 {
1275 /* zero */
1276 if (ecb_expect_true (!x))
1277 return s;
1278
1279 /* handle subnormals */
1280
1281 /* too small, will be zero */
1282 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1283 return s;
1284
1285 m |= 0x00800000; /* make implicit bit explicit */
1286
1287 /* very tricky - we need to round to the nearest e (+10) bit value */
1288 {
1289 unsigned int bits = 14 - e;
1290 unsigned int half = (1 << (bits - 1)) - 1;
1291 unsigned int even = (m >> bits) & 1;
1292
1293 /* if this overflows, we will end up with a normalised number */
1294 m = (m + half + even) >> bits;
1295 }
1296
1297 return s | m;
1298 }
1299
1300 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1301 m >>= 13;
1302
1303 return s | 0x7c00 | m | !m;
1304}
1305
1022/*******************************************************************************/ 1306/*******************************************************************************/
1023/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1307/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1024 1308
1025/* basically, everything uses "ieee pure-endian" floating point numbers */ 1309/* basically, everything uses "ieee pure-endian" floating point numbers */
1026/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1310/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1027#if 0 \ 1311#if 0 \
1028 || __i386 || __i386__ \ 1312 || __i386 || __i386__ \
1029 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1313 || ECB_GCC_AMD64 \
1030 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1314 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1031 || defined __arm__ && defined __ARM_EABI__ \
1032 || defined __s390__ || defined __s390x__ \ 1315 || defined __s390__ || defined __s390x__ \
1033 || defined __mips__ \ 1316 || defined __mips__ \
1034 || defined __alpha__ \ 1317 || defined __alpha__ \
1035 || defined __hppa__ \ 1318 || defined __hppa__ \
1036 || defined __ia64__ \ 1319 || defined __ia64__ \
1320 || defined __m68k__ \
1321 || defined __m88k__ \
1322 || defined __sh__ \
1037 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1323 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1324 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1325 || defined __aarch64__
1038 #define ECB_STDFP 1 1326 #define ECB_STDFP 1
1039 #include <string.h> /* for memcpy */ 1327 #include <string.h> /* for memcpy */
1040#else 1328#else
1041 #define ECB_STDFP 0 1329 #define ECB_STDFP 0
1042 #include <math.h> /* for frexp*, ldexp* */
1043#endif 1330#endif
1044 1331
1045#ifndef ECB_NO_LIBM 1332#ifndef ECB_NO_LIBM
1046 1333
1334 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1335
1336 /* only the oldest of old doesn't have this one. solaris. */
1337 #ifdef INFINITY
1338 #define ECB_INFINITY INFINITY
1339 #else
1340 #define ECB_INFINITY HUGE_VAL
1341 #endif
1342
1343 #ifdef NAN
1344 #define ECB_NAN NAN
1345 #else
1346 #define ECB_NAN ECB_INFINITY
1347 #endif
1348
1349 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1350 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1351 #define ecb_frexpf(x,e) frexpf ((x), (e))
1352 #else
1353 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1354 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1355 #endif
1356
1047 /* convert a float to ieee single/binary32 */ 1357 /* convert a float to ieee single/binary32 */
1048 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1358 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1049 ecb_function_ uint32_t 1359 ecb_function_ ecb_const uint32_t
1050 ecb_float_to_binary32 (float x) 1360 ecb_float_to_binary32 (float x)
1051 { 1361 {
1052 uint32_t r; 1362 uint32_t r;
1053 1363
1054 #if ECB_STDFP 1364 #if ECB_STDFP
… …
1061 if (x == 0e0f ) return 0x00000000U; 1371 if (x == 0e0f ) return 0x00000000U;
1062 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1372 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1063 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1373 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1064 if (x != x ) return 0x7fbfffffU; 1374 if (x != x ) return 0x7fbfffffU;
1065 1375
1066 m = frexpf (x, &e) * 0x1000000U; 1376 m = ecb_frexpf (x, &e) * 0x1000000U;
1067 1377
1068 r = m & 0x80000000U; 1378 r = m & 0x80000000U;
1069 1379
1070 if (r) 1380 if (r)
1071 m = -m; 1381 m = -m;
… …
1083 1393
1084 return r; 1394 return r;
1085 } 1395 }
1086 1396
1087 /* converts an ieee single/binary32 to a float */ 1397 /* converts an ieee single/binary32 to a float */
1088 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1398 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1089 ecb_function_ float 1399 ecb_function_ ecb_const float
1090 ecb_binary32_to_float (uint32_t x) 1400 ecb_binary32_to_float (uint32_t x)
1091 { 1401 {
1092 float r; 1402 float r;
1093 1403
1094 #if ECB_STDFP 1404 #if ECB_STDFP
… …
1104 x |= 0x800000U; 1414 x |= 0x800000U;
1105 else 1415 else
1106 e = 1; 1416 e = 1;
1107 1417
1108 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1418 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1109 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1419 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1110 1420
1111 r = neg ? -r : r; 1421 r = neg ? -r : r;
1112 #endif 1422 #endif
1113 1423
1114 return r; 1424 return r;
1115 } 1425 }
1116 1426
1117 /* convert a double to ieee double/binary64 */ 1427 /* convert a double to ieee double/binary64 */
1118 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1428 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1119 ecb_function_ uint64_t 1429 ecb_function_ ecb_const uint64_t
1120 ecb_double_to_binary64 (double x) 1430 ecb_double_to_binary64 (double x)
1121 { 1431 {
1122 uint64_t r; 1432 uint64_t r;
1123 1433
1124 #if ECB_STDFP 1434 #if ECB_STDFP
… …
1153 1463
1154 return r; 1464 return r;
1155 } 1465 }
1156 1466
1157 /* converts an ieee double/binary64 to a double */ 1467 /* converts an ieee double/binary64 to a double */
1158 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1468 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1159 ecb_function_ double 1469 ecb_function_ ecb_const double
1160 ecb_binary64_to_double (uint64_t x) 1470 ecb_binary64_to_double (uint64_t x)
1161 { 1471 {
1162 double r; 1472 double r;
1163 1473
1164 #if ECB_STDFP 1474 #if ECB_STDFP
… …
1180 1490
1181 r = neg ? -r : r; 1491 r = neg ? -r : r;
1182 #endif 1492 #endif
1183 1493
1184 return r; 1494 return r;
1495 }
1496
1497 /* convert a float to ieee half/binary16 */
1498 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1499 ecb_function_ ecb_const uint16_t
1500 ecb_float_to_binary16 (float x)
1501 {
1502 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1503 }
1504
1505 /* convert an ieee half/binary16 to float */
1506 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1507 ecb_function_ ecb_const float
1508 ecb_binary16_to_float (uint16_t x)
1509 {
1510 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1185 } 1511 }
1186 1512
1187#endif 1513#endif
1188 1514
1189#endif 1515#endif
… …
1214#define inline_size ecb_inline 1540#define inline_size ecb_inline
1215 1541
1216#if EV_FEATURE_CODE 1542#if EV_FEATURE_CODE
1217# define inline_speed ecb_inline 1543# define inline_speed ecb_inline
1218#else 1544#else
1219# define inline_speed static noinline 1545# define inline_speed noinline static
1220#endif 1546#endif
1221 1547
1222#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1548#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1223 1549
1224#if EV_MINPRI == EV_MAXPRI 1550#if EV_MINPRI == EV_MAXPRI
1225# define ABSPRI(w) (((W)w), 0) 1551# define ABSPRI(w) (((W)w), 0)
1226#else 1552#else
1227# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1553# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1228#endif 1554#endif
1229 1555
1230#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1556#define EMPTY /* required for microsofts broken pseudo-c compiler */
1231#define EMPTY2(a,b) /* used to suppress some warnings */
1232 1557
1233typedef ev_watcher *W; 1558typedef ev_watcher *W;
1234typedef ev_watcher_list *WL; 1559typedef ev_watcher_list *WL;
1235typedef ev_watcher_time *WT; 1560typedef ev_watcher_time *WT;
1236 1561
… …
1271#else 1596#else
1272 1597
1273#include <float.h> 1598#include <float.h>
1274 1599
1275/* a floor() replacement function, should be independent of ev_tstamp type */ 1600/* a floor() replacement function, should be independent of ev_tstamp type */
1601noinline
1276static ev_tstamp noinline 1602static ev_tstamp
1277ev_floor (ev_tstamp v) 1603ev_floor (ev_tstamp v)
1278{ 1604{
1279 /* the choice of shift factor is not terribly important */ 1605 /* the choice of shift factor is not terribly important */
1280#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1606#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1281 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1607 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1313 1639
1314#ifdef __linux 1640#ifdef __linux
1315# include <sys/utsname.h> 1641# include <sys/utsname.h>
1316#endif 1642#endif
1317 1643
1318static unsigned int noinline ecb_cold 1644noinline ecb_cold
1645static unsigned int
1319ev_linux_version (void) 1646ev_linux_version (void)
1320{ 1647{
1321#ifdef __linux 1648#ifdef __linux
1322 unsigned int v = 0; 1649 unsigned int v = 0;
1323 struct utsname buf; 1650 struct utsname buf;
… …
1352} 1679}
1353 1680
1354/*****************************************************************************/ 1681/*****************************************************************************/
1355 1682
1356#if EV_AVOID_STDIO 1683#if EV_AVOID_STDIO
1357static void noinline ecb_cold 1684noinline ecb_cold
1685static void
1358ev_printerr (const char *msg) 1686ev_printerr (const char *msg)
1359{ 1687{
1360 write (STDERR_FILENO, msg, strlen (msg)); 1688 write (STDERR_FILENO, msg, strlen (msg));
1361} 1689}
1362#endif 1690#endif
1363 1691
1364static void (*syserr_cb)(const char *msg) EV_THROW; 1692static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1365 1693
1366void ecb_cold 1694ecb_cold
1695void
1367ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1696ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1368{ 1697{
1369 syserr_cb = cb; 1698 syserr_cb = cb;
1370} 1699}
1371 1700
1372static void noinline ecb_cold 1701noinline ecb_cold
1702static void
1373ev_syserr (const char *msg) 1703ev_syserr (const char *msg)
1374{ 1704{
1375 if (!msg) 1705 if (!msg)
1376 msg = "(libev) system error"; 1706 msg = "(libev) system error";
1377 1707
… …
1390 abort (); 1720 abort ();
1391 } 1721 }
1392} 1722}
1393 1723
1394static void * 1724static void *
1395ev_realloc_emul (void *ptr, long size) EV_THROW 1725ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1396{ 1726{
1397 /* some systems, notably openbsd and darwin, fail to properly 1727 /* some systems, notably openbsd and darwin, fail to properly
1398 * implement realloc (x, 0) (as required by both ansi c-89 and 1728 * implement realloc (x, 0) (as required by both ansi c-89 and
1399 * the single unix specification, so work around them here. 1729 * the single unix specification, so work around them here.
1400 * recently, also (at least) fedora and debian started breaking it, 1730 * recently, also (at least) fedora and debian started breaking it,
… …
1406 1736
1407 free (ptr); 1737 free (ptr);
1408 return 0; 1738 return 0;
1409} 1739}
1410 1740
1411static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1741static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1412 1742
1413void ecb_cold 1743ecb_cold
1744void
1414ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1745ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1415{ 1746{
1416 alloc = cb; 1747 alloc = cb;
1417} 1748}
1418 1749
1419inline_speed void * 1750inline_speed void *
… …
1446typedef struct 1777typedef struct
1447{ 1778{
1448 WL head; 1779 WL head;
1449 unsigned char events; /* the events watched for */ 1780 unsigned char events; /* the events watched for */
1450 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1781 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1451 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1782 unsigned char emask; /* some backends store the actual kernel mask in here */
1452 unsigned char unused; 1783 unsigned char unused;
1453#if EV_USE_EPOLL 1784#if EV_USE_EPOLL
1454 unsigned int egen; /* generation counter to counter epoll bugs */ 1785 unsigned int egen; /* generation counter to counter epoll bugs */
1455#endif 1786#endif
1456#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1787#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1536 1867
1537/*****************************************************************************/ 1868/*****************************************************************************/
1538 1869
1539#ifndef EV_HAVE_EV_TIME 1870#ifndef EV_HAVE_EV_TIME
1540ev_tstamp 1871ev_tstamp
1541ev_time (void) EV_THROW 1872ev_time (void) EV_NOEXCEPT
1542{ 1873{
1543#if EV_USE_REALTIME 1874#if EV_USE_REALTIME
1544 if (expect_true (have_realtime)) 1875 if (expect_true (have_realtime))
1545 { 1876 {
1546 struct timespec ts; 1877 struct timespec ts;
… …
1570 return ev_time (); 1901 return ev_time ();
1571} 1902}
1572 1903
1573#if EV_MULTIPLICITY 1904#if EV_MULTIPLICITY
1574ev_tstamp 1905ev_tstamp
1575ev_now (EV_P) EV_THROW 1906ev_now (EV_P) EV_NOEXCEPT
1576{ 1907{
1577 return ev_rt_now; 1908 return ev_rt_now;
1578} 1909}
1579#endif 1910#endif
1580 1911
1581void 1912void
1582ev_sleep (ev_tstamp delay) EV_THROW 1913ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1583{ 1914{
1584 if (delay > 0.) 1915 if (delay > 0.)
1585 { 1916 {
1586#if EV_USE_NANOSLEEP 1917#if EV_USE_NANOSLEEP
1587 struct timespec ts; 1918 struct timespec ts;
1588 1919
1589 EV_TS_SET (ts, delay); 1920 EV_TS_SET (ts, delay);
1590 nanosleep (&ts, 0); 1921 nanosleep (&ts, 0);
1591#elif defined _WIN32 1922#elif defined _WIN32
1923 /* maybe this should round up, as ms is very low resolution */
1924 /* compared to select (µs) or nanosleep (ns) */
1592 Sleep ((unsigned long)(delay * 1e3)); 1925 Sleep ((unsigned long)(delay * 1e3));
1593#else 1926#else
1594 struct timeval tv; 1927 struct timeval tv;
1595 1928
1596 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1929 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1627 } 1960 }
1628 1961
1629 return ncur; 1962 return ncur;
1630} 1963}
1631 1964
1632static void * noinline ecb_cold 1965noinline ecb_cold
1966static void *
1633array_realloc (int elem, void *base, int *cur, int cnt) 1967array_realloc (int elem, void *base, int *cur, int cnt)
1634{ 1968{
1635 *cur = array_nextsize (elem, *cur, cnt); 1969 *cur = array_nextsize (elem, *cur, cnt);
1636 return ev_realloc (base, elem * *cur); 1970 return ev_realloc (base, elem * *cur);
1637} 1971}
1638 1972
1973#define array_needsize_noinit(base,count)
1974
1639#define array_init_zero(base,count) \ 1975#define array_needsize_zerofill(base,count) \
1640 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1976 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1641 1977
1642#define array_needsize(type,base,cur,cnt,init) \ 1978#define array_needsize(type,base,cur,cnt,init) \
1643 if (expect_false ((cnt) > (cur))) \ 1979 if (expect_false ((cnt) > (cur))) \
1644 { \ 1980 { \
1645 int ecb_unused ocur_ = (cur); \ 1981 ecb_unused int ocur_ = (cur); \
1646 (base) = (type *)array_realloc \ 1982 (base) = (type *)array_realloc \
1647 (sizeof (type), (base), &(cur), (cnt)); \ 1983 (sizeof (type), (base), &(cur), (cnt)); \
1648 init ((base) + (ocur_), (cur) - ocur_); \ 1984 init ((base) + (ocur_), (cur) - ocur_); \
1649 } 1985 }
1650 1986
… …
1662 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1998 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1663 1999
1664/*****************************************************************************/ 2000/*****************************************************************************/
1665 2001
1666/* dummy callback for pending events */ 2002/* dummy callback for pending events */
1667static void noinline 2003noinline
2004static void
1668pendingcb (EV_P_ ev_prepare *w, int revents) 2005pendingcb (EV_P_ ev_prepare *w, int revents)
1669{ 2006{
1670} 2007}
1671 2008
1672void noinline 2009noinline
2010void
1673ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2011ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1674{ 2012{
1675 W w_ = (W)w; 2013 W w_ = (W)w;
1676 int pri = ABSPRI (w_); 2014 int pri = ABSPRI (w_);
1677 2015
1678 if (expect_false (w_->pending)) 2016 if (expect_false (w_->pending))
1679 pendings [pri][w_->pending - 1].events |= revents; 2017 pendings [pri][w_->pending - 1].events |= revents;
1680 else 2018 else
1681 { 2019 {
1682 w_->pending = ++pendingcnt [pri]; 2020 w_->pending = ++pendingcnt [pri];
1683 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2021 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1684 pendings [pri][w_->pending - 1].w = w_; 2022 pendings [pri][w_->pending - 1].w = w_;
1685 pendings [pri][w_->pending - 1].events = revents; 2023 pendings [pri][w_->pending - 1].events = revents;
1686 } 2024 }
1687 2025
1688 pendingpri = NUMPRI - 1; 2026 pendingpri = NUMPRI - 1;
1689} 2027}
1690 2028
1691inline_speed void 2029inline_speed void
1692feed_reverse (EV_P_ W w) 2030feed_reverse (EV_P_ W w)
1693{ 2031{
1694 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2032 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1695 rfeeds [rfeedcnt++] = w; 2033 rfeeds [rfeedcnt++] = w;
1696} 2034}
1697 2035
1698inline_size void 2036inline_size void
1699feed_reverse_done (EV_P_ int revents) 2037feed_reverse_done (EV_P_ int revents)
… …
1739 if (expect_true (!anfd->reify)) 2077 if (expect_true (!anfd->reify))
1740 fd_event_nocheck (EV_A_ fd, revents); 2078 fd_event_nocheck (EV_A_ fd, revents);
1741} 2079}
1742 2080
1743void 2081void
1744ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2082ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1745{ 2083{
1746 if (fd >= 0 && fd < anfdmax) 2084 if (fd >= 0 && fd < anfdmax)
1747 fd_event_nocheck (EV_A_ fd, revents); 2085 fd_event_nocheck (EV_A_ fd, revents);
1748} 2086}
1749 2087
… …
1807 2145
1808 fdchangecnt = 0; 2146 fdchangecnt = 0;
1809} 2147}
1810 2148
1811/* something about the given fd changed */ 2149/* something about the given fd changed */
1812inline_size void 2150inline_size
2151void
1813fd_change (EV_P_ int fd, int flags) 2152fd_change (EV_P_ int fd, int flags)
1814{ 2153{
1815 unsigned char reify = anfds [fd].reify; 2154 unsigned char reify = anfds [fd].reify;
1816 anfds [fd].reify |= flags; 2155 anfds [fd].reify |= flags;
1817 2156
1818 if (expect_true (!reify)) 2157 if (expect_true (!reify))
1819 { 2158 {
1820 ++fdchangecnt; 2159 ++fdchangecnt;
1821 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2160 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1822 fdchanges [fdchangecnt - 1] = fd; 2161 fdchanges [fdchangecnt - 1] = fd;
1823 } 2162 }
1824} 2163}
1825 2164
1826/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2165/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1827inline_speed void ecb_cold 2166inline_speed ecb_cold void
1828fd_kill (EV_P_ int fd) 2167fd_kill (EV_P_ int fd)
1829{ 2168{
1830 ev_io *w; 2169 ev_io *w;
1831 2170
1832 while ((w = (ev_io *)anfds [fd].head)) 2171 while ((w = (ev_io *)anfds [fd].head))
… …
1835 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2174 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1836 } 2175 }
1837} 2176}
1838 2177
1839/* check whether the given fd is actually valid, for error recovery */ 2178/* check whether the given fd is actually valid, for error recovery */
1840inline_size int ecb_cold 2179inline_size ecb_cold int
1841fd_valid (int fd) 2180fd_valid (int fd)
1842{ 2181{
1843#ifdef _WIN32 2182#ifdef _WIN32
1844 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2183 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1845#else 2184#else
1846 return fcntl (fd, F_GETFD) != -1; 2185 return fcntl (fd, F_GETFD) != -1;
1847#endif 2186#endif
1848} 2187}
1849 2188
1850/* called on EBADF to verify fds */ 2189/* called on EBADF to verify fds */
1851static void noinline ecb_cold 2190noinline ecb_cold
2191static void
1852fd_ebadf (EV_P) 2192fd_ebadf (EV_P)
1853{ 2193{
1854 int fd; 2194 int fd;
1855 2195
1856 for (fd = 0; fd < anfdmax; ++fd) 2196 for (fd = 0; fd < anfdmax; ++fd)
… …
1858 if (!fd_valid (fd) && errno == EBADF) 2198 if (!fd_valid (fd) && errno == EBADF)
1859 fd_kill (EV_A_ fd); 2199 fd_kill (EV_A_ fd);
1860} 2200}
1861 2201
1862/* called on ENOMEM in select/poll to kill some fds and retry */ 2202/* called on ENOMEM in select/poll to kill some fds and retry */
1863static void noinline ecb_cold 2203noinline ecb_cold
2204static void
1864fd_enomem (EV_P) 2205fd_enomem (EV_P)
1865{ 2206{
1866 int fd; 2207 int fd;
1867 2208
1868 for (fd = anfdmax; fd--; ) 2209 for (fd = anfdmax; fd--; )
… …
1872 break; 2213 break;
1873 } 2214 }
1874} 2215}
1875 2216
1876/* usually called after fork if backend needs to re-arm all fds from scratch */ 2217/* usually called after fork if backend needs to re-arm all fds from scratch */
1877static void noinline 2218noinline
2219static void
1878fd_rearm_all (EV_P) 2220fd_rearm_all (EV_P)
1879{ 2221{
1880 int fd; 2222 int fd;
1881 2223
1882 for (fd = 0; fd < anfdmax; ++fd) 2224 for (fd = 0; fd < anfdmax; ++fd)
… …
2063 2405
2064/*****************************************************************************/ 2406/*****************************************************************************/
2065 2407
2066#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2408#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2067 2409
2068static void noinline ecb_cold 2410noinline ecb_cold
2411static void
2069evpipe_init (EV_P) 2412evpipe_init (EV_P)
2070{ 2413{
2071 if (!ev_is_active (&pipe_w)) 2414 if (!ev_is_active (&pipe_w))
2072 { 2415 {
2073 int fds [2]; 2416 int fds [2];
… …
2084 while (pipe (fds)) 2427 while (pipe (fds))
2085 ev_syserr ("(libev) error creating signal/async pipe"); 2428 ev_syserr ("(libev) error creating signal/async pipe");
2086 2429
2087 fd_intern (fds [0]); 2430 fd_intern (fds [0]);
2088 } 2431 }
2089
2090 fd_intern (fds [1]);
2091 2432
2092 evpipe [0] = fds [0]; 2433 evpipe [0] = fds [0];
2093 2434
2094 if (evpipe [1] < 0) 2435 if (evpipe [1] < 0)
2095 evpipe [1] = fds [1]; /* first call, set write fd */ 2436 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2102 2443
2103 dup2 (fds [1], evpipe [1]); 2444 dup2 (fds [1], evpipe [1]);
2104 close (fds [1]); 2445 close (fds [1]);
2105 } 2446 }
2106 2447
2448 fd_intern (evpipe [1]);
2449
2107 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2450 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108 ev_io_start (EV_A_ &pipe_w); 2451 ev_io_start (EV_A_ &pipe_w);
2109 ev_unref (EV_A); /* watcher should not keep loop alive */ 2452 ev_unref (EV_A); /* watcher should not keep loop alive */
2110 } 2453 }
2111} 2454}
… …
2144#endif 2487#endif
2145 { 2488 {
2146#ifdef _WIN32 2489#ifdef _WIN32
2147 WSABUF buf; 2490 WSABUF buf;
2148 DWORD sent; 2491 DWORD sent;
2149 buf.buf = &buf; 2492 buf.buf = (char *)&buf;
2150 buf.len = 1; 2493 buf.len = 1;
2151 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2494 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2152#else 2495#else
2153 write (evpipe [1], &(evpipe [1]), 1); 2496 write (evpipe [1], &(evpipe [1]), 1);
2154#endif 2497#endif
… …
2226} 2569}
2227 2570
2228/*****************************************************************************/ 2571/*****************************************************************************/
2229 2572
2230void 2573void
2231ev_feed_signal (int signum) EV_THROW 2574ev_feed_signal (int signum) EV_NOEXCEPT
2232{ 2575{
2233#if EV_MULTIPLICITY 2576#if EV_MULTIPLICITY
2577 EV_P;
2234 ECB_MEMORY_FENCE_ACQUIRE; 2578 ECB_MEMORY_FENCE_ACQUIRE;
2235 EV_P = signals [signum - 1].loop; 2579 EV_A = signals [signum - 1].loop;
2236 2580
2237 if (!EV_A) 2581 if (!EV_A)
2238 return; 2582 return;
2239#endif 2583#endif
2240 2584
… …
2250#endif 2594#endif
2251 2595
2252 ev_feed_signal (signum); 2596 ev_feed_signal (signum);
2253} 2597}
2254 2598
2255void noinline 2599noinline
2600void
2256ev_feed_signal_event (EV_P_ int signum) EV_THROW 2601ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2257{ 2602{
2258 WL w; 2603 WL w;
2259 2604
2260 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2605 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2261 return; 2606 return;
… …
2367# include "ev_port.c" 2712# include "ev_port.c"
2368#endif 2713#endif
2369#if EV_USE_KQUEUE 2714#if EV_USE_KQUEUE
2370# include "ev_kqueue.c" 2715# include "ev_kqueue.c"
2371#endif 2716#endif
2717#if EV_USE_LINUXAIO
2718# include "ev_linuxaio.c"
2719#endif
2372#if EV_USE_EPOLL 2720#if EV_USE_EPOLL
2373# include "ev_epoll.c" 2721# include "ev_epoll.c"
2374#endif 2722#endif
2375#if EV_USE_POLL 2723#if EV_USE_POLL
2376# include "ev_poll.c" 2724# include "ev_poll.c"
2377#endif 2725#endif
2378#if EV_USE_SELECT 2726#if EV_USE_SELECT
2379# include "ev_select.c" 2727# include "ev_select.c"
2380#endif 2728#endif
2381 2729
2382int ecb_cold 2730ecb_cold int
2383ev_version_major (void) EV_THROW 2731ev_version_major (void) EV_NOEXCEPT
2384{ 2732{
2385 return EV_VERSION_MAJOR; 2733 return EV_VERSION_MAJOR;
2386} 2734}
2387 2735
2388int ecb_cold 2736ecb_cold int
2389ev_version_minor (void) EV_THROW 2737ev_version_minor (void) EV_NOEXCEPT
2390{ 2738{
2391 return EV_VERSION_MINOR; 2739 return EV_VERSION_MINOR;
2392} 2740}
2393 2741
2394/* return true if we are running with elevated privileges and should ignore env variables */ 2742/* return true if we are running with elevated privileges and should ignore env variables */
2395int inline_size ecb_cold 2743inline_size ecb_cold int
2396enable_secure (void) 2744enable_secure (void)
2397{ 2745{
2398#ifdef _WIN32 2746#ifdef _WIN32
2399 return 0; 2747 return 0;
2400#else 2748#else
2401 return getuid () != geteuid () 2749 return getuid () != geteuid ()
2402 || getgid () != getegid (); 2750 || getgid () != getegid ();
2403#endif 2751#endif
2404} 2752}
2405 2753
2406unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2407ev_supported_backends (void) EV_THROW 2756ev_supported_backends (void) EV_NOEXCEPT
2408{ 2757{
2409 unsigned int flags = 0; 2758 unsigned int flags = 0;
2410 2759
2411 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2760 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2412 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2761 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2413 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2762 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2763 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2414 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2764 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2415 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2765 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2416 2766
2417 return flags; 2767 return flags;
2418} 2768}
2419 2769
2420unsigned int ecb_cold 2770ecb_cold
2771unsigned int
2421ev_recommended_backends (void) EV_THROW 2772ev_recommended_backends (void) EV_NOEXCEPT
2422{ 2773{
2423 unsigned int flags = ev_supported_backends (); 2774 unsigned int flags = ev_supported_backends ();
2424 2775
2425#ifndef __NetBSD__ 2776#ifndef __NetBSD__
2426 /* kqueue is borked on everything but netbsd apparently */ 2777 /* kqueue is borked on everything but netbsd apparently */
… …
2437#endif 2788#endif
2438 2789
2439 return flags; 2790 return flags;
2440} 2791}
2441 2792
2442unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2443ev_embeddable_backends (void) EV_THROW 2795ev_embeddable_backends (void) EV_NOEXCEPT
2444{ 2796{
2445 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2797 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2446 2798
2447 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2799 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2448 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2800 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2450 2802
2451 return flags; 2803 return flags;
2452} 2804}
2453 2805
2454unsigned int 2806unsigned int
2455ev_backend (EV_P) EV_THROW 2807ev_backend (EV_P) EV_NOEXCEPT
2456{ 2808{
2457 return backend; 2809 return backend;
2458} 2810}
2459 2811
2460#if EV_FEATURE_API 2812#if EV_FEATURE_API
2461unsigned int 2813unsigned int
2462ev_iteration (EV_P) EV_THROW 2814ev_iteration (EV_P) EV_NOEXCEPT
2463{ 2815{
2464 return loop_count; 2816 return loop_count;
2465} 2817}
2466 2818
2467unsigned int 2819unsigned int
2468ev_depth (EV_P) EV_THROW 2820ev_depth (EV_P) EV_NOEXCEPT
2469{ 2821{
2470 return loop_depth; 2822 return loop_depth;
2471} 2823}
2472 2824
2473void 2825void
2474ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2826ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2475{ 2827{
2476 io_blocktime = interval; 2828 io_blocktime = interval;
2477} 2829}
2478 2830
2479void 2831void
2480ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2832ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2481{ 2833{
2482 timeout_blocktime = interval; 2834 timeout_blocktime = interval;
2483} 2835}
2484 2836
2485void 2837void
2486ev_set_userdata (EV_P_ void *data) EV_THROW 2838ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2487{ 2839{
2488 userdata = data; 2840 userdata = data;
2489} 2841}
2490 2842
2491void * 2843void *
2492ev_userdata (EV_P) EV_THROW 2844ev_userdata (EV_P) EV_NOEXCEPT
2493{ 2845{
2494 return userdata; 2846 return userdata;
2495} 2847}
2496 2848
2497void 2849void
2498ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2850ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2499{ 2851{
2500 invoke_cb = invoke_pending_cb; 2852 invoke_cb = invoke_pending_cb;
2501} 2853}
2502 2854
2503void 2855void
2504ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2856ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2505{ 2857{
2506 release_cb = release; 2858 release_cb = release;
2507 acquire_cb = acquire; 2859 acquire_cb = acquire;
2508} 2860}
2509#endif 2861#endif
2510 2862
2511/* initialise a loop structure, must be zero-initialised */ 2863/* initialise a loop structure, must be zero-initialised */
2512static void noinline ecb_cold 2864noinline ecb_cold
2865static void
2513loop_init (EV_P_ unsigned int flags) EV_THROW 2866loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2514{ 2867{
2515 if (!backend) 2868 if (!backend)
2516 { 2869 {
2517 origflags = flags; 2870 origflags = flags;
2518 2871
… …
2576 2929
2577 if (!(flags & EVBACKEND_MASK)) 2930 if (!(flags & EVBACKEND_MASK))
2578 flags |= ev_recommended_backends (); 2931 flags |= ev_recommended_backends ();
2579 2932
2580#if EV_USE_IOCP 2933#if EV_USE_IOCP
2581 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2934 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2582#endif 2935#endif
2583#if EV_USE_PORT 2936#if EV_USE_PORT
2584 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2937 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2585#endif 2938#endif
2586#if EV_USE_KQUEUE 2939#if EV_USE_KQUEUE
2587 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2940 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2941#endif
2942#if EV_USE_LINUXAIO
2943 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2588#endif 2944#endif
2589#if EV_USE_EPOLL 2945#if EV_USE_EPOLL
2590 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2946 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2591#endif 2947#endif
2592#if EV_USE_POLL 2948#if EV_USE_POLL
2593 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2949 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2594#endif 2950#endif
2595#if EV_USE_SELECT 2951#if EV_USE_SELECT
2596 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2952 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2597#endif 2953#endif
2598 2954
2599 ev_prepare_init (&pending_w, pendingcb); 2955 ev_prepare_init (&pending_w, pendingcb);
2600 2956
2601#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2957#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2604#endif 2960#endif
2605 } 2961 }
2606} 2962}
2607 2963
2608/* free up a loop structure */ 2964/* free up a loop structure */
2609void ecb_cold 2965ecb_cold
2966void
2610ev_loop_destroy (EV_P) 2967ev_loop_destroy (EV_P)
2611{ 2968{
2612 int i; 2969 int i;
2613 2970
2614#if EV_MULTIPLICITY 2971#if EV_MULTIPLICITY
… …
2655 3012
2656 if (backend_fd >= 0) 3013 if (backend_fd >= 0)
2657 close (backend_fd); 3014 close (backend_fd);
2658 3015
2659#if EV_USE_IOCP 3016#if EV_USE_IOCP
2660 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3017 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2661#endif 3018#endif
2662#if EV_USE_PORT 3019#if EV_USE_PORT
2663 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2664#endif 3021#endif
2665#if EV_USE_KQUEUE 3022#if EV_USE_KQUEUE
2666 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3023 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3024#endif
3025#if EV_USE_LINUXAIO
3026 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2667#endif 3027#endif
2668#if EV_USE_EPOLL 3028#if EV_USE_EPOLL
2669 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3029 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2670#endif 3030#endif
2671#if EV_USE_POLL 3031#if EV_USE_POLL
2672 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3032 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2673#endif 3033#endif
2674#if EV_USE_SELECT 3034#if EV_USE_SELECT
2675 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3035 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2676#endif 3036#endif
2677 3037
2678 for (i = NUMPRI; i--; ) 3038 for (i = NUMPRI; i--; )
2679 { 3039 {
2680 array_free (pending, [i]); 3040 array_free (pending, [i]);
… …
2722 3082
2723inline_size void 3083inline_size void
2724loop_fork (EV_P) 3084loop_fork (EV_P)
2725{ 3085{
2726#if EV_USE_PORT 3086#if EV_USE_PORT
2727 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3087 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2728#endif 3088#endif
2729#if EV_USE_KQUEUE 3089#if EV_USE_KQUEUE
2730 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3090 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3091#endif
3092#if EV_USE_LINUXAIO
3093 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2731#endif 3094#endif
2732#if EV_USE_EPOLL 3095#if EV_USE_EPOLL
2733 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3096 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2734#endif 3097#endif
2735#if EV_USE_INOTIFY 3098#if EV_USE_INOTIFY
2736 infy_fork (EV_A); 3099 infy_fork (EV_A);
2737#endif 3100#endif
2738 3101
2739#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3102#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2740 if (ev_is_active (&pipe_w)) 3103 if (ev_is_active (&pipe_w) && postfork != 2)
2741 { 3104 {
2742 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3105 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2743 3106
2744 ev_ref (EV_A); 3107 ev_ref (EV_A);
2745 ev_io_stop (EV_A_ &pipe_w); 3108 ev_io_stop (EV_A_ &pipe_w);
… …
2756 postfork = 0; 3119 postfork = 0;
2757} 3120}
2758 3121
2759#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
2760 3123
3124ecb_cold
2761struct ev_loop * ecb_cold 3125struct ev_loop *
2762ev_loop_new (unsigned int flags) EV_THROW 3126ev_loop_new (unsigned int flags) EV_NOEXCEPT
2763{ 3127{
2764 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3128 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2765 3129
2766 memset (EV_A, 0, sizeof (struct ev_loop)); 3130 memset (EV_A, 0, sizeof (struct ev_loop));
2767 loop_init (EV_A_ flags); 3131 loop_init (EV_A_ flags);
… …
2774} 3138}
2775 3139
2776#endif /* multiplicity */ 3140#endif /* multiplicity */
2777 3141
2778#if EV_VERIFY 3142#if EV_VERIFY
2779static void noinline ecb_cold 3143noinline ecb_cold
3144static void
2780verify_watcher (EV_P_ W w) 3145verify_watcher (EV_P_ W w)
2781{ 3146{
2782 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3147 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2783 3148
2784 if (w->pending) 3149 if (w->pending)
2785 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3150 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2786} 3151}
2787 3152
2788static void noinline ecb_cold 3153noinline ecb_cold
3154static void
2789verify_heap (EV_P_ ANHE *heap, int N) 3155verify_heap (EV_P_ ANHE *heap, int N)
2790{ 3156{
2791 int i; 3157 int i;
2792 3158
2793 for (i = HEAP0; i < N + HEAP0; ++i) 3159 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2798 3164
2799 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3165 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2800 } 3166 }
2801} 3167}
2802 3168
2803static void noinline ecb_cold 3169noinline ecb_cold
3170static void
2804array_verify (EV_P_ W *ws, int cnt) 3171array_verify (EV_P_ W *ws, int cnt)
2805{ 3172{
2806 while (cnt--) 3173 while (cnt--)
2807 { 3174 {
2808 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3175 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2811} 3178}
2812#endif 3179#endif
2813 3180
2814#if EV_FEATURE_API 3181#if EV_FEATURE_API
2815void ecb_cold 3182void ecb_cold
2816ev_verify (EV_P) EV_THROW 3183ev_verify (EV_P) EV_NOEXCEPT
2817{ 3184{
2818#if EV_VERIFY 3185#if EV_VERIFY
2819 int i; 3186 int i;
2820 WL w, w2; 3187 WL w, w2;
2821 3188
… …
2897#endif 3264#endif
2898} 3265}
2899#endif 3266#endif
2900 3267
2901#if EV_MULTIPLICITY 3268#if EV_MULTIPLICITY
3269ecb_cold
2902struct ev_loop * ecb_cold 3270struct ev_loop *
2903#else 3271#else
2904int 3272int
2905#endif 3273#endif
2906ev_default_loop (unsigned int flags) EV_THROW 3274ev_default_loop (unsigned int flags) EV_NOEXCEPT
2907{ 3275{
2908 if (!ev_default_loop_ptr) 3276 if (!ev_default_loop_ptr)
2909 { 3277 {
2910#if EV_MULTIPLICITY 3278#if EV_MULTIPLICITY
2911 EV_P = ev_default_loop_ptr = &default_loop_struct; 3279 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2930 3298
2931 return ev_default_loop_ptr; 3299 return ev_default_loop_ptr;
2932} 3300}
2933 3301
2934void 3302void
2935ev_loop_fork (EV_P) EV_THROW 3303ev_loop_fork (EV_P) EV_NOEXCEPT
2936{ 3304{
2937 postfork = 1; 3305 postfork = 1;
2938} 3306}
2939 3307
2940/*****************************************************************************/ 3308/*****************************************************************************/
… …
2944{ 3312{
2945 EV_CB_INVOKE ((W)w, revents); 3313 EV_CB_INVOKE ((W)w, revents);
2946} 3314}
2947 3315
2948unsigned int 3316unsigned int
2949ev_pending_count (EV_P) EV_THROW 3317ev_pending_count (EV_P) EV_NOEXCEPT
2950{ 3318{
2951 int pri; 3319 int pri;
2952 unsigned int count = 0; 3320 unsigned int count = 0;
2953 3321
2954 for (pri = NUMPRI; pri--; ) 3322 for (pri = NUMPRI; pri--; )
2955 count += pendingcnt [pri]; 3323 count += pendingcnt [pri];
2956 3324
2957 return count; 3325 return count;
2958} 3326}
2959 3327
2960void noinline 3328noinline
3329void
2961ev_invoke_pending (EV_P) 3330ev_invoke_pending (EV_P)
2962{ 3331{
2963 pendingpri = NUMPRI; 3332 pendingpri = NUMPRI;
2964 3333
2965 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3334 do
2966 { 3335 {
2967 --pendingpri; 3336 --pendingpri;
2968 3337
3338 /* pendingpri possibly gets modified in the inner loop */
2969 while (pendingcnt [pendingpri]) 3339 while (pendingcnt [pendingpri])
2970 { 3340 {
2971 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3341 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2972 3342
2973 p->w->pending = 0; 3343 p->w->pending = 0;
2974 EV_CB_INVOKE (p->w, p->events); 3344 EV_CB_INVOKE (p->w, p->events);
2975 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
2976 } 3346 }
2977 } 3347 }
3348 while (pendingpri);
2978} 3349}
2979 3350
2980#if EV_IDLE_ENABLE 3351#if EV_IDLE_ENABLE
2981/* make idle watchers pending. this handles the "call-idle */ 3352/* make idle watchers pending. this handles the "call-idle */
2982/* only when higher priorities are idle" logic */ 3353/* only when higher priorities are idle" logic */
… …
3040 } 3411 }
3041} 3412}
3042 3413
3043#if EV_PERIODIC_ENABLE 3414#if EV_PERIODIC_ENABLE
3044 3415
3045static void noinline 3416noinline
3417static void
3046periodic_recalc (EV_P_ ev_periodic *w) 3418periodic_recalc (EV_P_ ev_periodic *w)
3047{ 3419{
3048 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3420 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3049 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3421 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3050 3422
… …
3108 } 3480 }
3109} 3481}
3110 3482
3111/* simply recalculate all periodics */ 3483/* simply recalculate all periodics */
3112/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3484/* TODO: maybe ensure that at least one event happens when jumping forward? */
3113static void noinline ecb_cold 3485noinline ecb_cold
3486static void
3114periodics_reschedule (EV_P) 3487periodics_reschedule (EV_P)
3115{ 3488{
3116 int i; 3489 int i;
3117 3490
3118 /* adjust periodics after time jump */ 3491 /* adjust periodics after time jump */
… …
3131 reheap (periodics, periodiccnt); 3504 reheap (periodics, periodiccnt);
3132} 3505}
3133#endif 3506#endif
3134 3507
3135/* adjust all timers by a given offset */ 3508/* adjust all timers by a given offset */
3136static void noinline ecb_cold 3509noinline ecb_cold
3510static void
3137timers_reschedule (EV_P_ ev_tstamp adjust) 3511timers_reschedule (EV_P_ ev_tstamp adjust)
3138{ 3512{
3139 int i; 3513 int i;
3140 3514
3141 for (i = 0; i < timercnt; ++i) 3515 for (i = 0; i < timercnt; ++i)
… …
3388 3762
3389 return activecnt; 3763 return activecnt;
3390} 3764}
3391 3765
3392void 3766void
3393ev_break (EV_P_ int how) EV_THROW 3767ev_break (EV_P_ int how) EV_NOEXCEPT
3394{ 3768{
3395 loop_done = how; 3769 loop_done = how;
3396} 3770}
3397 3771
3398void 3772void
3399ev_ref (EV_P) EV_THROW 3773ev_ref (EV_P) EV_NOEXCEPT
3400{ 3774{
3401 ++activecnt; 3775 ++activecnt;
3402} 3776}
3403 3777
3404void 3778void
3405ev_unref (EV_P) EV_THROW 3779ev_unref (EV_P) EV_NOEXCEPT
3406{ 3780{
3407 --activecnt; 3781 --activecnt;
3408} 3782}
3409 3783
3410void 3784void
3411ev_now_update (EV_P) EV_THROW 3785ev_now_update (EV_P) EV_NOEXCEPT
3412{ 3786{
3413 time_update (EV_A_ 1e100); 3787 time_update (EV_A_ 1e100);
3414} 3788}
3415 3789
3416void 3790void
3417ev_suspend (EV_P) EV_THROW 3791ev_suspend (EV_P) EV_NOEXCEPT
3418{ 3792{
3419 ev_now_update (EV_A); 3793 ev_now_update (EV_A);
3420} 3794}
3421 3795
3422void 3796void
3423ev_resume (EV_P) EV_THROW 3797ev_resume (EV_P) EV_NOEXCEPT
3424{ 3798{
3425 ev_tstamp mn_prev = mn_now; 3799 ev_tstamp mn_prev = mn_now;
3426 3800
3427 ev_now_update (EV_A); 3801 ev_now_update (EV_A);
3428 timers_reschedule (EV_A_ mn_now - mn_prev); 3802 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3467 w->pending = 0; 3841 w->pending = 0;
3468 } 3842 }
3469} 3843}
3470 3844
3471int 3845int
3472ev_clear_pending (EV_P_ void *w) EV_THROW 3846ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3473{ 3847{
3474 W w_ = (W)w; 3848 W w_ = (W)w;
3475 int pending = w_->pending; 3849 int pending = w_->pending;
3476 3850
3477 if (expect_true (pending)) 3851 if (expect_true (pending))
… …
3509 w->active = 0; 3883 w->active = 0;
3510} 3884}
3511 3885
3512/*****************************************************************************/ 3886/*****************************************************************************/
3513 3887
3514void noinline 3888noinline
3889void
3515ev_io_start (EV_P_ ev_io *w) EV_THROW 3890ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3516{ 3891{
3517 int fd = w->fd; 3892 int fd = w->fd;
3518 3893
3519 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
3520 return; 3895 return;
… …
3523 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3898 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3524 3899
3525 EV_FREQUENT_CHECK; 3900 EV_FREQUENT_CHECK;
3526 3901
3527 ev_start (EV_A_ (W)w, 1); 3902 ev_start (EV_A_ (W)w, 1);
3528 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3903 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3529 wlist_add (&anfds[fd].head, (WL)w); 3904 wlist_add (&anfds[fd].head, (WL)w);
3530 3905
3531 /* common bug, apparently */ 3906 /* common bug, apparently */
3532 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3907 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3533 3908
… …
3535 w->events &= ~EV__IOFDSET; 3910 w->events &= ~EV__IOFDSET;
3536 3911
3537 EV_FREQUENT_CHECK; 3912 EV_FREQUENT_CHECK;
3538} 3913}
3539 3914
3540void noinline 3915noinline
3916void
3541ev_io_stop (EV_P_ ev_io *w) EV_THROW 3917ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3542{ 3918{
3543 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
3544 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
3545 return; 3921 return;
3546 3922
… …
3554 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3930 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3555 3931
3556 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
3557} 3933}
3558 3934
3559void noinline 3935noinline
3936void
3560ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3561{ 3938{
3562 if (expect_false (ev_is_active (w))) 3939 if (expect_false (ev_is_active (w)))
3563 return; 3940 return;
3564 3941
3565 ev_at (w) += mn_now; 3942 ev_at (w) += mn_now;
… …
3568 3945
3569 EV_FREQUENT_CHECK; 3946 EV_FREQUENT_CHECK;
3570 3947
3571 ++timercnt; 3948 ++timercnt;
3572 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3949 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3573 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3950 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3574 ANHE_w (timers [ev_active (w)]) = (WT)w; 3951 ANHE_w (timers [ev_active (w)]) = (WT)w;
3575 ANHE_at_cache (timers [ev_active (w)]); 3952 ANHE_at_cache (timers [ev_active (w)]);
3576 upheap (timers, ev_active (w)); 3953 upheap (timers, ev_active (w));
3577 3954
3578 EV_FREQUENT_CHECK; 3955 EV_FREQUENT_CHECK;
3579 3956
3580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3957 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3581} 3958}
3582 3959
3583void noinline 3960noinline
3961void
3584ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3962ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3585{ 3963{
3586 clear_pending (EV_A_ (W)w); 3964 clear_pending (EV_A_ (W)w);
3587 if (expect_false (!ev_is_active (w))) 3965 if (expect_false (!ev_is_active (w)))
3588 return; 3966 return;
3589 3967
… …
3608 ev_stop (EV_A_ (W)w); 3986 ev_stop (EV_A_ (W)w);
3609 3987
3610 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3611} 3989}
3612 3990
3613void noinline 3991noinline
3992void
3614ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3993ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3615{ 3994{
3616 EV_FREQUENT_CHECK; 3995 EV_FREQUENT_CHECK;
3617 3996
3618 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3619 3998
… …
3636 4015
3637 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3638} 4017}
3639 4018
3640ev_tstamp 4019ev_tstamp
3641ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4020ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3642{ 4021{
3643 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4022 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3644} 4023}
3645 4024
3646#if EV_PERIODIC_ENABLE 4025#if EV_PERIODIC_ENABLE
3647void noinline 4026noinline
4027void
3648ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4028ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3649{ 4029{
3650 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
3651 return; 4031 return;
3652 4032
3653 if (w->reschedule_cb) 4033 if (w->reschedule_cb)
… …
3662 4042
3663 EV_FREQUENT_CHECK; 4043 EV_FREQUENT_CHECK;
3664 4044
3665 ++periodiccnt; 4045 ++periodiccnt;
3666 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4046 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3667 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4047 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3668 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4048 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3669 ANHE_at_cache (periodics [ev_active (w)]); 4049 ANHE_at_cache (periodics [ev_active (w)]);
3670 upheap (periodics, ev_active (w)); 4050 upheap (periodics, ev_active (w));
3671 4051
3672 EV_FREQUENT_CHECK; 4052 EV_FREQUENT_CHECK;
3673 4053
3674 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4054 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3675} 4055}
3676 4056
3677void noinline 4057noinline
4058void
3678ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4059ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3679{ 4060{
3680 clear_pending (EV_A_ (W)w); 4061 clear_pending (EV_A_ (W)w);
3681 if (expect_false (!ev_is_active (w))) 4062 if (expect_false (!ev_is_active (w)))
3682 return; 4063 return;
3683 4064
… …
3700 ev_stop (EV_A_ (W)w); 4081 ev_stop (EV_A_ (W)w);
3701 4082
3702 EV_FREQUENT_CHECK; 4083 EV_FREQUENT_CHECK;
3703} 4084}
3704 4085
3705void noinline 4086noinline
4087void
3706ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4088ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3707{ 4089{
3708 /* TODO: use adjustheap and recalculation */ 4090 /* TODO: use adjustheap and recalculation */
3709 ev_periodic_stop (EV_A_ w); 4091 ev_periodic_stop (EV_A_ w);
3710 ev_periodic_start (EV_A_ w); 4092 ev_periodic_start (EV_A_ w);
3711} 4093}
… …
3715# define SA_RESTART 0 4097# define SA_RESTART 0
3716#endif 4098#endif
3717 4099
3718#if EV_SIGNAL_ENABLE 4100#if EV_SIGNAL_ENABLE
3719 4101
3720void noinline 4102noinline
4103void
3721ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4104ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3722{ 4105{
3723 if (expect_false (ev_is_active (w))) 4106 if (expect_false (ev_is_active (w)))
3724 return; 4107 return;
3725 4108
3726 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4109 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3797 } 4180 }
3798 4181
3799 EV_FREQUENT_CHECK; 4182 EV_FREQUENT_CHECK;
3800} 4183}
3801 4184
3802void noinline 4185noinline
4186void
3803ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4187ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3804{ 4188{
3805 clear_pending (EV_A_ (W)w); 4189 clear_pending (EV_A_ (W)w);
3806 if (expect_false (!ev_is_active (w))) 4190 if (expect_false (!ev_is_active (w)))
3807 return; 4191 return;
3808 4192
… …
3839#endif 4223#endif
3840 4224
3841#if EV_CHILD_ENABLE 4225#if EV_CHILD_ENABLE
3842 4226
3843void 4227void
3844ev_child_start (EV_P_ ev_child *w) EV_THROW 4228ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3845{ 4229{
3846#if EV_MULTIPLICITY 4230#if EV_MULTIPLICITY
3847 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4231 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3848#endif 4232#endif
3849 if (expect_false (ev_is_active (w))) 4233 if (expect_false (ev_is_active (w)))
… …
3856 4240
3857 EV_FREQUENT_CHECK; 4241 EV_FREQUENT_CHECK;
3858} 4242}
3859 4243
3860void 4244void
3861ev_child_stop (EV_P_ ev_child *w) EV_THROW 4245ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3862{ 4246{
3863 clear_pending (EV_A_ (W)w); 4247 clear_pending (EV_A_ (W)w);
3864 if (expect_false (!ev_is_active (w))) 4248 if (expect_false (!ev_is_active (w)))
3865 return; 4249 return;
3866 4250
… …
3883 4267
3884#define DEF_STAT_INTERVAL 5.0074891 4268#define DEF_STAT_INTERVAL 5.0074891
3885#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4269#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3886#define MIN_STAT_INTERVAL 0.1074891 4270#define MIN_STAT_INTERVAL 0.1074891
3887 4271
3888static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4272noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3889 4273
3890#if EV_USE_INOTIFY 4274#if EV_USE_INOTIFY
3891 4275
3892/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4276/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3893# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4277# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3894 4278
3895static void noinline 4279noinline
4280static void
3896infy_add (EV_P_ ev_stat *w) 4281infy_add (EV_P_ ev_stat *w)
3897{ 4282{
3898 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4283 w->wd = inotify_add_watch (fs_fd, w->path,
4284 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4285 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4286 | IN_DONT_FOLLOW | IN_MASK_ADD);
3899 4287
3900 if (w->wd >= 0) 4288 if (w->wd >= 0)
3901 { 4289 {
3902 struct statfs sfs; 4290 struct statfs sfs;
3903 4291
… …
3907 4295
3908 if (!fs_2625) 4296 if (!fs_2625)
3909 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4297 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3910 else if (!statfs (w->path, &sfs) 4298 else if (!statfs (w->path, &sfs)
3911 && (sfs.f_type == 0x1373 /* devfs */ 4299 && (sfs.f_type == 0x1373 /* devfs */
4300 || sfs.f_type == 0x4006 /* fat */
4301 || sfs.f_type == 0x4d44 /* msdos */
3912 || sfs.f_type == 0xEF53 /* ext2/3 */ 4302 || sfs.f_type == 0xEF53 /* ext2/3 */
4303 || sfs.f_type == 0x72b6 /* jffs2 */
4304 || sfs.f_type == 0x858458f6 /* ramfs */
4305 || sfs.f_type == 0x5346544e /* ntfs */
3913 || sfs.f_type == 0x3153464a /* jfs */ 4306 || sfs.f_type == 0x3153464a /* jfs */
4307 || sfs.f_type == 0x9123683e /* btrfs */
3914 || sfs.f_type == 0x52654973 /* reiser3 */ 4308 || sfs.f_type == 0x52654973 /* reiser3 */
3915 || sfs.f_type == 0x01021994 /* tempfs */ 4309 || sfs.f_type == 0x01021994 /* tmpfs */
3916 || sfs.f_type == 0x58465342 /* xfs */)) 4310 || sfs.f_type == 0x58465342 /* xfs */))
3917 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4311 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3918 else 4312 else
3919 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4313 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3920 } 4314 }
… …
3955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4349 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3956 ev_timer_again (EV_A_ &w->timer); 4350 ev_timer_again (EV_A_ &w->timer);
3957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4351 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3958} 4352}
3959 4353
3960static void noinline 4354noinline
4355static void
3961infy_del (EV_P_ ev_stat *w) 4356infy_del (EV_P_ ev_stat *w)
3962{ 4357{
3963 int slot; 4358 int slot;
3964 int wd = w->wd; 4359 int wd = w->wd;
3965 4360
… …
3972 4367
3973 /* remove this watcher, if others are watching it, they will rearm */ 4368 /* remove this watcher, if others are watching it, they will rearm */
3974 inotify_rm_watch (fs_fd, wd); 4369 inotify_rm_watch (fs_fd, wd);
3975} 4370}
3976 4371
3977static void noinline 4372noinline
4373static void
3978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4374infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3979{ 4375{
3980 if (slot < 0) 4376 if (slot < 0)
3981 /* overflow, need to check for all hash slots */ 4377 /* overflow, need to check for all hash slots */
3982 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4378 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4414 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4019 ofs += sizeof (struct inotify_event) + ev->len; 4415 ofs += sizeof (struct inotify_event) + ev->len;
4020 } 4416 }
4021} 4417}
4022 4418
4023inline_size void ecb_cold 4419inline_size ecb_cold
4420void
4024ev_check_2625 (EV_P) 4421ev_check_2625 (EV_P)
4025{ 4422{
4026 /* kernels < 2.6.25 are borked 4423 /* kernels < 2.6.25 are borked
4027 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4424 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4028 */ 4425 */
… …
4118#else 4515#else
4119# define EV_LSTAT(p,b) lstat (p, b) 4516# define EV_LSTAT(p,b) lstat (p, b)
4120#endif 4517#endif
4121 4518
4122void 4519void
4123ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4520ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4124{ 4521{
4125 if (lstat (w->path, &w->attr) < 0) 4522 if (lstat (w->path, &w->attr) < 0)
4126 w->attr.st_nlink = 0; 4523 w->attr.st_nlink = 0;
4127 else if (!w->attr.st_nlink) 4524 else if (!w->attr.st_nlink)
4128 w->attr.st_nlink = 1; 4525 w->attr.st_nlink = 1;
4129} 4526}
4130 4527
4131static void noinline 4528noinline
4529static void
4132stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4530stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4133{ 4531{
4134 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4532 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4135 4533
4136 ev_statdata prev = w->attr; 4534 ev_statdata prev = w->attr;
… …
4167 ev_feed_event (EV_A_ w, EV_STAT); 4565 ev_feed_event (EV_A_ w, EV_STAT);
4168 } 4566 }
4169} 4567}
4170 4568
4171void 4569void
4172ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4570ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4173{ 4571{
4174 if (expect_false (ev_is_active (w))) 4572 if (expect_false (ev_is_active (w)))
4175 return; 4573 return;
4176 4574
4177 ev_stat_stat (EV_A_ w); 4575 ev_stat_stat (EV_A_ w);
… …
4198 4596
4199 EV_FREQUENT_CHECK; 4597 EV_FREQUENT_CHECK;
4200} 4598}
4201 4599
4202void 4600void
4203ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4601ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4204{ 4602{
4205 clear_pending (EV_A_ (W)w); 4603 clear_pending (EV_A_ (W)w);
4206 if (expect_false (!ev_is_active (w))) 4604 if (expect_false (!ev_is_active (w)))
4207 return; 4605 return;
4208 4606
… …
4224} 4622}
4225#endif 4623#endif
4226 4624
4227#if EV_IDLE_ENABLE 4625#if EV_IDLE_ENABLE
4228void 4626void
4229ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4627ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4230{ 4628{
4231 if (expect_false (ev_is_active (w))) 4629 if (expect_false (ev_is_active (w)))
4232 return; 4630 return;
4233 4631
4234 pri_adjust (EV_A_ (W)w); 4632 pri_adjust (EV_A_ (W)w);
… …
4239 int active = ++idlecnt [ABSPRI (w)]; 4637 int active = ++idlecnt [ABSPRI (w)];
4240 4638
4241 ++idleall; 4639 ++idleall;
4242 ev_start (EV_A_ (W)w, active); 4640 ev_start (EV_A_ (W)w, active);
4243 4641
4244 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4642 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4245 idles [ABSPRI (w)][active - 1] = w; 4643 idles [ABSPRI (w)][active - 1] = w;
4246 } 4644 }
4247 4645
4248 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4249} 4647}
4250 4648
4251void 4649void
4252ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4650ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4253{ 4651{
4254 clear_pending (EV_A_ (W)w); 4652 clear_pending (EV_A_ (W)w);
4255 if (expect_false (!ev_is_active (w))) 4653 if (expect_false (!ev_is_active (w)))
4256 return; 4654 return;
4257 4655
… …
4271} 4669}
4272#endif 4670#endif
4273 4671
4274#if EV_PREPARE_ENABLE 4672#if EV_PREPARE_ENABLE
4275void 4673void
4276ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4674ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4277{ 4675{
4278 if (expect_false (ev_is_active (w))) 4676 if (expect_false (ev_is_active (w)))
4279 return; 4677 return;
4280 4678
4281 EV_FREQUENT_CHECK; 4679 EV_FREQUENT_CHECK;
4282 4680
4283 ev_start (EV_A_ (W)w, ++preparecnt); 4681 ev_start (EV_A_ (W)w, ++preparecnt);
4284 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4682 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4285 prepares [preparecnt - 1] = w; 4683 prepares [preparecnt - 1] = w;
4286 4684
4287 EV_FREQUENT_CHECK; 4685 EV_FREQUENT_CHECK;
4288} 4686}
4289 4687
4290void 4688void
4291ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4689ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4292{ 4690{
4293 clear_pending (EV_A_ (W)w); 4691 clear_pending (EV_A_ (W)w);
4294 if (expect_false (!ev_is_active (w))) 4692 if (expect_false (!ev_is_active (w)))
4295 return; 4693 return;
4296 4694
… …
4309} 4707}
4310#endif 4708#endif
4311 4709
4312#if EV_CHECK_ENABLE 4710#if EV_CHECK_ENABLE
4313void 4711void
4314ev_check_start (EV_P_ ev_check *w) EV_THROW 4712ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4315{ 4713{
4316 if (expect_false (ev_is_active (w))) 4714 if (expect_false (ev_is_active (w)))
4317 return; 4715 return;
4318 4716
4319 EV_FREQUENT_CHECK; 4717 EV_FREQUENT_CHECK;
4320 4718
4321 ev_start (EV_A_ (W)w, ++checkcnt); 4719 ev_start (EV_A_ (W)w, ++checkcnt);
4322 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4720 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4323 checks [checkcnt - 1] = w; 4721 checks [checkcnt - 1] = w;
4324 4722
4325 EV_FREQUENT_CHECK; 4723 EV_FREQUENT_CHECK;
4326} 4724}
4327 4725
4328void 4726void
4329ev_check_stop (EV_P_ ev_check *w) EV_THROW 4727ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4330{ 4728{
4331 clear_pending (EV_A_ (W)w); 4729 clear_pending (EV_A_ (W)w);
4332 if (expect_false (!ev_is_active (w))) 4730 if (expect_false (!ev_is_active (w)))
4333 return; 4731 return;
4334 4732
… …
4346 EV_FREQUENT_CHECK; 4744 EV_FREQUENT_CHECK;
4347} 4745}
4348#endif 4746#endif
4349 4747
4350#if EV_EMBED_ENABLE 4748#if EV_EMBED_ENABLE
4351void noinline 4749noinline
4750void
4352ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4751ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4353{ 4752{
4354 ev_run (w->other, EVRUN_NOWAIT); 4753 ev_run (w->other, EVRUN_NOWAIT);
4355} 4754}
4356 4755
4357static void 4756static void
… …
4405 ev_idle_stop (EV_A_ idle); 4804 ev_idle_stop (EV_A_ idle);
4406} 4805}
4407#endif 4806#endif
4408 4807
4409void 4808void
4410ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4809ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4411{ 4810{
4412 if (expect_false (ev_is_active (w))) 4811 if (expect_false (ev_is_active (w)))
4413 return; 4812 return;
4414 4813
4415 { 4814 {
… …
4436 4835
4437 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4438} 4837}
4439 4838
4440void 4839void
4441ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4840ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4442{ 4841{
4443 clear_pending (EV_A_ (W)w); 4842 clear_pending (EV_A_ (W)w);
4444 if (expect_false (!ev_is_active (w))) 4843 if (expect_false (!ev_is_active (w)))
4445 return; 4844 return;
4446 4845
… …
4456} 4855}
4457#endif 4856#endif
4458 4857
4459#if EV_FORK_ENABLE 4858#if EV_FORK_ENABLE
4460void 4859void
4461ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4860ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4462{ 4861{
4463 if (expect_false (ev_is_active (w))) 4862 if (expect_false (ev_is_active (w)))
4464 return; 4863 return;
4465 4864
4466 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
4467 4866
4468 ev_start (EV_A_ (W)w, ++forkcnt); 4867 ev_start (EV_A_ (W)w, ++forkcnt);
4469 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4868 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4470 forks [forkcnt - 1] = w; 4869 forks [forkcnt - 1] = w;
4471 4870
4472 EV_FREQUENT_CHECK; 4871 EV_FREQUENT_CHECK;
4473} 4872}
4474 4873
4475void 4874void
4476ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4875ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4477{ 4876{
4478 clear_pending (EV_A_ (W)w); 4877 clear_pending (EV_A_ (W)w);
4479 if (expect_false (!ev_is_active (w))) 4878 if (expect_false (!ev_is_active (w)))
4480 return; 4879 return;
4481 4880
… …
4494} 4893}
4495#endif 4894#endif
4496 4895
4497#if EV_CLEANUP_ENABLE 4896#if EV_CLEANUP_ENABLE
4498void 4897void
4499ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4898ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4500{ 4899{
4501 if (expect_false (ev_is_active (w))) 4900 if (expect_false (ev_is_active (w)))
4502 return; 4901 return;
4503 4902
4504 EV_FREQUENT_CHECK; 4903 EV_FREQUENT_CHECK;
4505 4904
4506 ev_start (EV_A_ (W)w, ++cleanupcnt); 4905 ev_start (EV_A_ (W)w, ++cleanupcnt);
4507 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4906 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4508 cleanups [cleanupcnt - 1] = w; 4907 cleanups [cleanupcnt - 1] = w;
4509 4908
4510 /* cleanup watchers should never keep a refcount on the loop */ 4909 /* cleanup watchers should never keep a refcount on the loop */
4511 ev_unref (EV_A); 4910 ev_unref (EV_A);
4512 EV_FREQUENT_CHECK; 4911 EV_FREQUENT_CHECK;
4513} 4912}
4514 4913
4515void 4914void
4516ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4915ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4517{ 4916{
4518 clear_pending (EV_A_ (W)w); 4917 clear_pending (EV_A_ (W)w);
4519 if (expect_false (!ev_is_active (w))) 4918 if (expect_false (!ev_is_active (w)))
4520 return; 4919 return;
4521 4920
… …
4535} 4934}
4536#endif 4935#endif
4537 4936
4538#if EV_ASYNC_ENABLE 4937#if EV_ASYNC_ENABLE
4539void 4938void
4540ev_async_start (EV_P_ ev_async *w) EV_THROW 4939ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4541{ 4940{
4542 if (expect_false (ev_is_active (w))) 4941 if (expect_false (ev_is_active (w)))
4543 return; 4942 return;
4544 4943
4545 w->sent = 0; 4944 w->sent = 0;
… …
4547 evpipe_init (EV_A); 4946 evpipe_init (EV_A);
4548 4947
4549 EV_FREQUENT_CHECK; 4948 EV_FREQUENT_CHECK;
4550 4949
4551 ev_start (EV_A_ (W)w, ++asynccnt); 4950 ev_start (EV_A_ (W)w, ++asynccnt);
4552 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4951 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4553 asyncs [asynccnt - 1] = w; 4952 asyncs [asynccnt - 1] = w;
4554 4953
4555 EV_FREQUENT_CHECK; 4954 EV_FREQUENT_CHECK;
4556} 4955}
4557 4956
4558void 4957void
4559ev_async_stop (EV_P_ ev_async *w) EV_THROW 4958ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4560{ 4959{
4561 clear_pending (EV_A_ (W)w); 4960 clear_pending (EV_A_ (W)w);
4562 if (expect_false (!ev_is_active (w))) 4961 if (expect_false (!ev_is_active (w)))
4563 return; 4962 return;
4564 4963
… …
4575 4974
4576 EV_FREQUENT_CHECK; 4975 EV_FREQUENT_CHECK;
4577} 4976}
4578 4977
4579void 4978void
4580ev_async_send (EV_P_ ev_async *w) EV_THROW 4979ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4581{ 4980{
4582 w->sent = 1; 4981 w->sent = 1;
4583 evpipe_write (EV_A_ &async_pending); 4982 evpipe_write (EV_A_ &async_pending);
4584} 4983}
4585#endif 4984#endif
… …
4622 5021
4623 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5022 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4624} 5023}
4625 5024
4626void 5025void
4627ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5026ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4628{ 5027{
4629 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5028 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4630
4631 if (expect_false (!once))
4632 {
4633 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4634 return;
4635 }
4636 5029
4637 once->cb = cb; 5030 once->cb = cb;
4638 once->arg = arg; 5031 once->arg = arg;
4639 5032
4640 ev_init (&once->io, once_cb_io); 5033 ev_init (&once->io, once_cb_io);
… …
4653} 5046}
4654 5047
4655/*****************************************************************************/ 5048/*****************************************************************************/
4656 5049
4657#if EV_WALK_ENABLE 5050#if EV_WALK_ENABLE
4658void ecb_cold 5051ecb_cold
5052void
4659ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5053ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4660{ 5054{
4661 int i, j; 5055 int i, j;
4662 ev_watcher_list *wl, *wn; 5056 ev_watcher_list *wl, *wn;
4663 5057
4664 if (types & (EV_IO | EV_EMBED)) 5058 if (types & (EV_IO | EV_EMBED))

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