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Comparing libev/ev.c (file contents):
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 UTC vs.
Revision 1.499 by root, Wed Jun 26 07:50:27 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 385#endif
361 386
362#ifdef ANDROID 387#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 388/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 389# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 390# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 392# undef EV_USE_CLOCK_SYSCALL
… …
408 433
409#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
413# endif 446# endif
414#endif 447#endif
415 448
416#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
417# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
487/* 520/*
488 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
489 * 522 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 525 * All rights reserved.
493 * 526 *
494 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
514 */ 558 */
515 559
516#ifndef ECB_H 560#ifndef ECB_H
517#define ECB_H 561#define ECB_H
518 562
519/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010002 564#define ECB_VERSION 0x00010006
521 565
522#ifdef _WIN32 566#ifdef _WIN32
523 typedef signed char int8_t; 567 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
544 #endif 588 #endif
545#else 589#else
546 #include <inttypes.h> 590 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
549 #else 593 #else
550 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
595 #endif
596#endif
597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
601/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32
604 #define ECB_AMD64_X32 1
605 #else
606 #define ECB_AMD64 1
551 #endif 607 #endif
552#endif 608#endif
553 609
554/* many compilers define _GNUC_ to some versions but then only implement 610/* many compilers define _GNUC_ to some versions but then only implement
555 * what their idiot authors think are the "more important" extensions, 611 * what their idiot authors think are the "more important" extensions,
556 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
557 * or so. 613 * or so.
558 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
559 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
560 */ 616 */
561#ifndef ECB_GCC_VERSION
562 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
563 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
564 #else 619#else
565 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
566 #endif 621#endif
567#endif
568 622
569#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
570#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
571#define ECB_C11 (__STDC_VERSION__ >= 201112L) 625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
572#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
573#define ECB_CPP11 (__cplusplus >= 201103L) 638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
574 653
575#if ECB_CPP 654#if ECB_CPP
576 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
593 672
594#if ECB_NO_SMP 673#if ECB_NO_SMP
595 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
596#endif 675#endif
597 676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
684#endif
685
598#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
688 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
600 #if __i386 || __i386__ 689 #if __i386 || __i386__
601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
699 #elif defined __ARM_ARCH_2__ \
700 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
701 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
702 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
703 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
704 || defined __ARM_ARCH_5TEJ__
705 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__ 713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__ 719 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__ 721 #elif defined __mips__
722 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
723 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 724 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
624 #elif defined __alpha__ 725 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 726 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__ 727 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 729 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__ 730 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
732 #elif defined __m68k__
733 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
734 #elif defined __m88k__
735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
736 #elif defined __sh__
737 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
631 #endif 738 #endif
632 #endif 739 #endif
633#endif 740#endif
634 741
635#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7) 743 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */ 744 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 745 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
746 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
747 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
748 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
639 749
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 750 #elif ECB_CLANG_EXTENSION(c_atomic)
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model. 751 /* see comment below (stdatomic.h) about the C11 memory model. */
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 752 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */ 753 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
754 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
755 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
648 756
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #define ECB_MEMORY_FENCE __sync_synchronize () 758 #define ECB_MEMORY_FENCE __sync_synchronize ()
759 #elif _MSC_VER >= 1500 /* VC++ 2008 */
760 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
761 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
762 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
763 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
764 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 765 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 766 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 767 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 768 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 769 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
656 #elif defined _WIN32 770 #elif defined _WIN32
657 #include <WinNT.h> 771 #include <WinNT.h>
658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h> 774 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
663 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 777 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
778 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
664 #elif __xlC__ 779 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync () 780 #define ECB_MEMORY_FENCE __sync ()
666 #endif 781 #endif
667#endif 782#endif
668 783
669#ifndef ECB_MEMORY_FENCE 784#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* we assume that these memory fences work on all variables/all memory accesses, */ 786 /* we assume that these memory fences work on all variables/all memory accesses, */
672 /* not just C11 atomics and atomic accesses */ 787 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h> 788 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 789 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
790 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
791 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
681 #endif 792 #endif
682#endif 793#endif
683 794
684#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
685 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
705 816
706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif 819#endif
709 820
821#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
822 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
823#endif
824
710/*****************************************************************************/ 825/*****************************************************************************/
711 826
712#if __cplusplus 827#if ECB_CPP
713 #define ecb_inline static inline 828 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
716#elif ECB_C99 831#elif ECB_C99
717 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
731 846
732#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
735#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 850#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
851#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
736 852
737#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
738 854
739#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
740 #define ecb_attribute(attrlist) __attribute__(attrlist) 856 #define ecb_attribute(attrlist) __attribute__ (attrlist)
857#else
858 #define ecb_attribute(attrlist)
859#endif
860
861#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
741 #define ecb_is_constant(expr) __builtin_constant_p (expr) 862 #define ecb_is_constant(expr) __builtin_constant_p (expr)
863#else
864 /* possible C11 impl for integral types
865 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
866 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
867
868 #define ecb_is_constant(expr) 0
869#endif
870
871#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
742 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 872 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
873#else
874 #define ecb_expect(expr,value) (expr)
875#endif
876
877#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else 879#else
745 #define ecb_attribute(attrlist)
746 #define ecb_is_constant(expr) 0
747 #define ecb_expect(expr,value) (expr)
748 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
749#endif 881#endif
750 882
751/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
752#if ECB_GCC_VERSION(4,5) 884#if ECB_CPP11
885 // older implementations might have problems with decltype(x)::type, work around it
886 template<class T> struct ecb_decltype_t { typedef T type; };
753 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
754#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
755 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
756#endif 890#endif
757 891
892#if _MSC_VER >= 1300
893 #define ecb_deprecated __declspec (deprecated)
894#else
895 #define ecb_deprecated ecb_attribute ((__deprecated__))
896#endif
897
898#if _MSC_VER >= 1500
899 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
900#elif ECB_GCC_VERSION(4,5)
901 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
902#else
903 #define ecb_deprecated_message(msg) ecb_deprecated
904#endif
905
906#if _MSC_VER >= 1400
907 #define ecb_noinline __declspec (noinline)
908#else
758#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
910#endif
911
759#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
762 915
763#if ECB_C11 916#if ECB_C11 || __IBMC_NORETURN
917 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
764 #define ecb_noreturn _Noreturn 918 #define ecb_noreturn _Noreturn
919#elif ECB_CPP11
920 #define ecb_noreturn [[noreturn]]
921#elif _MSC_VER >= 1200
922 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
923 #define ecb_noreturn __declspec (noreturn)
765#else 924#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__)) 925 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif 926#endif
768 927
769#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
… …
784/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
787 946
788/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
789#if ECB_GCC_VERSION(3,4) 948#if ECB_GCC_VERSION(3,4) \
949 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
950 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
951 && ECB_CLANG_BUILTIN(__builtin_popcount))
790 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 952 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */ 958 /* no popcountll */
797#else 959#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
799 ecb_function_ int 961 ecb_function_ ecb_const int
800 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
801 { 963 {
964#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
965 unsigned long r;
966 _BitScanForward (&r, x);
967 return (int)r;
968#else
802 int r = 0; 969 int r = 0;
803 970
804 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
805 972
806#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
816 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
818#endif 985#endif
819 986
820 return r; 987 return r;
988#endif
821 } 989 }
822 990
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
824 ecb_function_ int 992 ecb_function_ ecb_const int
825 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
826 { 994 {
995#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
996 unsigned long r;
997 _BitScanForward64 (&r, x);
998 return (int)r;
999#else
827 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
829 } 1003 }
830 1004
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
832 ecb_function_ int 1006 ecb_function_ ecb_const int
833 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
834 { 1008 {
835 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101; 1012 x *= 0x01010101;
839 1013
840 return x >> 24; 1014 return x >> 24;
841 } 1015 }
842 1016
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
844 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
845 { 1019 {
1020#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1021 unsigned long r;
1022 _BitScanReverse (&r, x);
1023 return (int)r;
1024#else
846 int r = 0; 1025 int r = 0;
847 1026
848 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
853 1032
854 return r; 1033 return r;
1034#endif
855 } 1035 }
856 1036
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
858 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
859 { 1039 {
1040#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1041 unsigned long r;
1042 _BitScanReverse64 (&r, x);
1043 return (int)r;
1044#else
860 int r = 0; 1045 int r = 0;
861 1046
862 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
863 1048
864 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
865 } 1051 }
866#endif 1052#endif
867 1053
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1057ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872 1058
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
875{ 1061{
876 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878} 1064}
879 1065
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
882{ 1068{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
887 1073
888 return x; 1074 return x;
889} 1075}
890 1076
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
893{ 1079{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
900 return x; 1086 return x;
901} 1087}
902 1088
903/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */ 1090/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
906ecb_function_ int 1092ecb_function_ ecb_const int
907ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
908{ 1094{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910} 1096}
911 1097
912ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
913ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
914ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
915ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
916ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
917ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
918ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
919ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
920 1106
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1107ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1108ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1109ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1110ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1111ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1112ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1113ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1114ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
929 1115
930#if ECB_GCC_VERSION(4,3) 1116#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1117 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
932 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #define ecb_bswap64(x) __builtin_bswap64 (x) 1123 #define ecb_bswap64(x) __builtin_bswap64 (x)
1124#elif _MSC_VER
1125 #include <stdlib.h>
1126 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1127 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1128 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
934#else 1129#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
936 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
937 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
938 { 1133 {
939 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
940 } 1135 }
941 1136
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
943 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
944 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
945 { 1140 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 } 1142 }
948 1143
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
950 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
951 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
952 { 1147 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 } 1149 }
955#endif 1150#endif
956 1151
957#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
958 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
959#else 1154#else
960 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1155 /* this seems to work fine, but gcc always emits a warning for it :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
962 ecb_inline void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
963#endif 1158#endif
964 1159
965/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967 1162
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
969ecb_inline unsigned char 1164ecb_inline ecb_const uint32_t
970ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
971{ 1166{
972 /* the union code still generates code under pressure in gcc, */ 1167 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */ 1168 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */ 1169 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */ 1170 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */ 1171 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */ 1172 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1173#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1174 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1175 #define ECB_LITTLE_ENDIAN 1
981 return 0x44; 1176 return 0x44332211;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1177#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1178 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1179 #define ECB_BIG_ENDIAN 1
983 return 0x11; 1180 return 0x11223344;
984#else 1181#else
985 union 1182 union
986 { 1183 {
1184 uint8_t c[4];
987 uint32_t i; 1185 uint32_t u;
988 uint8_t c;
989 } u = { 0x11223344 }; 1186 } u = { 0x11, 0x22, 0x33, 0x44 };
990 return u.c; 1187 return u.u;
991#endif 1188#endif
992} 1189}
993 1190
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1192ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1194ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
998 1195
999#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1197 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1001#else 1198#else
1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1199 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif 1200#endif
1004 1201
1005#if __cplusplus 1202#if ECB_CPP
1006 template<typename T> 1203 template<typename T>
1007 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
1008 { 1205 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 } 1207 }
… …
1027 } 1224 }
1028#else 1225#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif 1227#endif
1031 1228
1229ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1230ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x)
1232{
1233 unsigned int s = (x & 0x8000) << (31 - 15);
1234 int e = (x >> 10) & 0x001f;
1235 unsigned int m = x & 0x03ff;
1236
1237 if (ecb_expect_false (e == 31))
1238 /* infinity or NaN */
1239 e = 255 - (127 - 15);
1240 else if (ecb_expect_false (!e))
1241 {
1242 if (ecb_expect_true (!m))
1243 /* zero, handled by code below by forcing e to 0 */
1244 e = 0 - (127 - 15);
1245 else
1246 {
1247 /* subnormal, renormalise */
1248 unsigned int s = 10 - ecb_ld32 (m);
1249
1250 m = (m << s) & 0x3ff; /* mask implicit bit */
1251 e -= s - 1;
1252 }
1253 }
1254
1255 /* e and m now are normalised, or zero, (or inf or nan) */
1256 e += 127 - 15;
1257
1258 return s | (e << 23) | (m << (23 - 10));
1259}
1260
1261ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1262ecb_function_ ecb_const uint16_t
1263ecb_binary32_to_binary16 (uint32_t x)
1264{
1265 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1266 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1267 unsigned int m = x & 0x007fffff;
1268
1269 x &= 0x7fffffff;
1270
1271 /* if it's within range of binary16 normals, use fast path */
1272 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1273 {
1274 /* mantissa round-to-even */
1275 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1276
1277 /* handle overflow */
1278 if (ecb_expect_false (m >= 0x00800000))
1279 {
1280 m >>= 1;
1281 e += 1;
1282 }
1283
1284 return s | (e << 10) | (m >> (23 - 10));
1285 }
1286
1287 /* handle large numbers and infinity */
1288 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1289 return s | 0x7c00;
1290
1291 /* handle zero, subnormals and small numbers */
1292 if (ecb_expect_true (x < 0x38800000))
1293 {
1294 /* zero */
1295 if (ecb_expect_true (!x))
1296 return s;
1297
1298 /* handle subnormals */
1299
1300 /* too small, will be zero */
1301 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1302 return s;
1303
1304 m |= 0x00800000; /* make implicit bit explicit */
1305
1306 /* very tricky - we need to round to the nearest e (+10) bit value */
1307 {
1308 unsigned int bits = 14 - e;
1309 unsigned int half = (1 << (bits - 1)) - 1;
1310 unsigned int even = (m >> bits) & 1;
1311
1312 /* if this overflows, we will end up with a normalised number */
1313 m = (m + half + even) >> bits;
1314 }
1315
1316 return s | m;
1317 }
1318
1319 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1320 m >>= 13;
1321
1322 return s | 0x7c00 | m | !m;
1323}
1324
1032/*******************************************************************************/ 1325/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1326/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034 1327
1035/* basically, everything uses "ieee pure-endian" floating point numbers */ 1328/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1329/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \ 1330#if 0 \
1038 || __i386 || __i386__ \ 1331 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1332 || ECB_GCC_AMD64 \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1333 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \ 1334 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \ 1335 || defined __mips__ \
1044 || defined __alpha__ \ 1336 || defined __alpha__ \
1045 || defined __hppa__ \ 1337 || defined __hppa__ \
1046 || defined __ia64__ \ 1338 || defined __ia64__ \
1339 || defined __m68k__ \
1340 || defined __m88k__ \
1341 || defined __sh__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1343 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1344 || defined __aarch64__
1048 #define ECB_STDFP 1 1345 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */ 1346 #include <string.h> /* for memcpy */
1050#else 1347#else
1051 #define ECB_STDFP 0 1348 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif 1349#endif
1054 1350
1055#ifndef ECB_NO_LIBM 1351#ifndef ECB_NO_LIBM
1056 1352
1353 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1354
1355 /* only the oldest of old doesn't have this one. solaris. */
1356 #ifdef INFINITY
1357 #define ECB_INFINITY INFINITY
1358 #else
1359 #define ECB_INFINITY HUGE_VAL
1360 #endif
1361
1362 #ifdef NAN
1363 #define ECB_NAN NAN
1364 #else
1365 #define ECB_NAN ECB_INFINITY
1366 #endif
1367
1368 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1369 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1370 #define ecb_frexpf(x,e) frexpf ((x), (e))
1371 #else
1372 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1373 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1374 #endif
1375
1057 /* convert a float to ieee single/binary32 */ 1376 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1377 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1059 ecb_function_ uint32_t 1378 ecb_function_ ecb_const uint32_t
1060 ecb_float_to_binary32 (float x) 1379 ecb_float_to_binary32 (float x)
1061 { 1380 {
1062 uint32_t r; 1381 uint32_t r;
1063 1382
1064 #if ECB_STDFP 1383 #if ECB_STDFP
… …
1071 if (x == 0e0f ) return 0x00000000U; 1390 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1391 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1392 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU; 1393 if (x != x ) return 0x7fbfffffU;
1075 1394
1076 m = frexpf (x, &e) * 0x1000000U; 1395 m = ecb_frexpf (x, &e) * 0x1000000U;
1077 1396
1078 r = m & 0x80000000U; 1397 r = m & 0x80000000U;
1079 1398
1080 if (r) 1399 if (r)
1081 m = -m; 1400 m = -m;
… …
1093 1412
1094 return r; 1413 return r;
1095 } 1414 }
1096 1415
1097 /* converts an ieee single/binary32 to a float */ 1416 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1417 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1099 ecb_function_ float 1418 ecb_function_ ecb_const float
1100 ecb_binary32_to_float (uint32_t x) 1419 ecb_binary32_to_float (uint32_t x)
1101 { 1420 {
1102 float r; 1421 float r;
1103 1422
1104 #if ECB_STDFP 1423 #if ECB_STDFP
… …
1114 x |= 0x800000U; 1433 x |= 0x800000U;
1115 else 1434 else
1116 e = 1; 1435 e = 1;
1117 1436
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1437 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1438 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1120 1439
1121 r = neg ? -r : r; 1440 r = neg ? -r : r;
1122 #endif 1441 #endif
1123 1442
1124 return r; 1443 return r;
1125 } 1444 }
1126 1445
1127 /* convert a double to ieee double/binary64 */ 1446 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1447 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1129 ecb_function_ uint64_t 1448 ecb_function_ ecb_const uint64_t
1130 ecb_double_to_binary64 (double x) 1449 ecb_double_to_binary64 (double x)
1131 { 1450 {
1132 uint64_t r; 1451 uint64_t r;
1133 1452
1134 #if ECB_STDFP 1453 #if ECB_STDFP
… …
1163 1482
1164 return r; 1483 return r;
1165 } 1484 }
1166 1485
1167 /* converts an ieee double/binary64 to a double */ 1486 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1487 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1169 ecb_function_ double 1488 ecb_function_ ecb_const double
1170 ecb_binary64_to_double (uint64_t x) 1489 ecb_binary64_to_double (uint64_t x)
1171 { 1490 {
1172 double r; 1491 double r;
1173 1492
1174 #if ECB_STDFP 1493 #if ECB_STDFP
… …
1190 1509
1191 r = neg ? -r : r; 1510 r = neg ? -r : r;
1192 #endif 1511 #endif
1193 1512
1194 return r; 1513 return r;
1514 }
1515
1516 /* convert a float to ieee half/binary16 */
1517 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1518 ecb_function_ ecb_const uint16_t
1519 ecb_float_to_binary16 (float x)
1520 {
1521 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1522 }
1523
1524 /* convert an ieee half/binary16 to float */
1525 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1526 ecb_function_ ecb_const float
1527 ecb_binary16_to_float (uint16_t x)
1528 {
1529 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1195 } 1530 }
1196 1531
1197#endif 1532#endif
1198 1533
1199#endif 1534#endif
… …
1224#define inline_size ecb_inline 1559#define inline_size ecb_inline
1225 1560
1226#if EV_FEATURE_CODE 1561#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline 1562# define inline_speed ecb_inline
1228#else 1563#else
1229# define inline_speed static noinline 1564# define inline_speed noinline static
1230#endif 1565#endif
1231 1566
1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1567#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1233 1568
1234#if EV_MINPRI == EV_MAXPRI 1569#if EV_MINPRI == EV_MAXPRI
1235# define ABSPRI(w) (((W)w), 0) 1570# define ABSPRI(w) (((W)w), 0)
1236#else 1571#else
1237# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1572# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1238#endif 1573#endif
1239 1574
1240#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1575#define EMPTY /* required for microsofts broken pseudo-c compiler */
1241#define EMPTY2(a,b) /* used to suppress some warnings */
1242 1576
1243typedef ev_watcher *W; 1577typedef ev_watcher *W;
1244typedef ev_watcher_list *WL; 1578typedef ev_watcher_list *WL;
1245typedef ev_watcher_time *WT; 1579typedef ev_watcher_time *WT;
1246 1580
… …
1271# include "ev_win32.c" 1605# include "ev_win32.c"
1272#endif 1606#endif
1273 1607
1274/*****************************************************************************/ 1608/*****************************************************************************/
1275 1609
1610#if EV_USE_LINUXAIO
1611# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1612#endif
1613
1276/* define a suitable floor function (only used by periodics atm) */ 1614/* define a suitable floor function (only used by periodics atm) */
1277 1615
1278#if EV_USE_FLOOR 1616#if EV_USE_FLOOR
1279# include <math.h> 1617# include <math.h>
1280# define ev_floor(v) floor (v) 1618# define ev_floor(v) floor (v)
1281#else 1619#else
1282 1620
1283#include <float.h> 1621#include <float.h>
1284 1622
1285/* a floor() replacement function, should be independent of ev_tstamp type */ 1623/* a floor() replacement function, should be independent of ev_tstamp type */
1624noinline
1286static ev_tstamp noinline 1625static ev_tstamp
1287ev_floor (ev_tstamp v) 1626ev_floor (ev_tstamp v)
1288{ 1627{
1289 /* the choice of shift factor is not terribly important */ 1628 /* the choice of shift factor is not terribly important */
1290#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1629#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1630 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1323 1662
1324#ifdef __linux 1663#ifdef __linux
1325# include <sys/utsname.h> 1664# include <sys/utsname.h>
1326#endif 1665#endif
1327 1666
1328static unsigned int noinline ecb_cold 1667noinline ecb_cold
1668static unsigned int
1329ev_linux_version (void) 1669ev_linux_version (void)
1330{ 1670{
1331#ifdef __linux 1671#ifdef __linux
1332 unsigned int v = 0; 1672 unsigned int v = 0;
1333 struct utsname buf; 1673 struct utsname buf;
… …
1362} 1702}
1363 1703
1364/*****************************************************************************/ 1704/*****************************************************************************/
1365 1705
1366#if EV_AVOID_STDIO 1706#if EV_AVOID_STDIO
1367static void noinline ecb_cold 1707noinline ecb_cold
1708static void
1368ev_printerr (const char *msg) 1709ev_printerr (const char *msg)
1369{ 1710{
1370 write (STDERR_FILENO, msg, strlen (msg)); 1711 write (STDERR_FILENO, msg, strlen (msg));
1371} 1712}
1372#endif 1713#endif
1373 1714
1374static void (*syserr_cb)(const char *msg) EV_THROW; 1715static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1375 1716
1376void ecb_cold 1717ecb_cold
1718void
1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1719ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1378{ 1720{
1379 syserr_cb = cb; 1721 syserr_cb = cb;
1380} 1722}
1381 1723
1382static void noinline ecb_cold 1724noinline ecb_cold
1725static void
1383ev_syserr (const char *msg) 1726ev_syserr (const char *msg)
1384{ 1727{
1385 if (!msg) 1728 if (!msg)
1386 msg = "(libev) system error"; 1729 msg = "(libev) system error";
1387 1730
… …
1400 abort (); 1743 abort ();
1401 } 1744 }
1402} 1745}
1403 1746
1404static void * 1747static void *
1405ev_realloc_emul (void *ptr, long size) EV_THROW 1748ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1406{ 1749{
1407 /* some systems, notably openbsd and darwin, fail to properly 1750 /* some systems, notably openbsd and darwin, fail to properly
1408 * implement realloc (x, 0) (as required by both ansi c-89 and 1751 * implement realloc (x, 0) (as required by both ansi c-89 and
1409 * the single unix specification, so work around them here. 1752 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it, 1753 * recently, also (at least) fedora and debian started breaking it,
… …
1416 1759
1417 free (ptr); 1760 free (ptr);
1418 return 0; 1761 return 0;
1419} 1762}
1420 1763
1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1764static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1422 1765
1423void ecb_cold 1766ecb_cold
1767void
1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1768ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1425{ 1769{
1426 alloc = cb; 1770 alloc = cb;
1427} 1771}
1428 1772
1429inline_speed void * 1773inline_speed void *
… …
1456typedef struct 1800typedef struct
1457{ 1801{
1458 WL head; 1802 WL head;
1459 unsigned char events; /* the events watched for */ 1803 unsigned char events; /* the events watched for */
1460 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1804 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1461 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1805 unsigned char emask; /* some backends store the actual kernel mask in here */
1462 unsigned char unused; 1806 unsigned char unused;
1463#if EV_USE_EPOLL 1807#if EV_USE_EPOLL
1464 unsigned int egen; /* generation counter to counter epoll bugs */ 1808 unsigned int egen; /* generation counter to counter epoll bugs */
1465#endif 1809#endif
1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1810#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1546 1890
1547/*****************************************************************************/ 1891/*****************************************************************************/
1548 1892
1549#ifndef EV_HAVE_EV_TIME 1893#ifndef EV_HAVE_EV_TIME
1550ev_tstamp 1894ev_tstamp
1551ev_time (void) EV_THROW 1895ev_time (void) EV_NOEXCEPT
1552{ 1896{
1553#if EV_USE_REALTIME 1897#if EV_USE_REALTIME
1554 if (expect_true (have_realtime)) 1898 if (expect_true (have_realtime))
1555 { 1899 {
1556 struct timespec ts; 1900 struct timespec ts;
… …
1580 return ev_time (); 1924 return ev_time ();
1581} 1925}
1582 1926
1583#if EV_MULTIPLICITY 1927#if EV_MULTIPLICITY
1584ev_tstamp 1928ev_tstamp
1585ev_now (EV_P) EV_THROW 1929ev_now (EV_P) EV_NOEXCEPT
1586{ 1930{
1587 return ev_rt_now; 1931 return ev_rt_now;
1588} 1932}
1589#endif 1933#endif
1590 1934
1591void 1935void
1592ev_sleep (ev_tstamp delay) EV_THROW 1936ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1593{ 1937{
1594 if (delay > 0.) 1938 if (delay > 0.)
1595 { 1939 {
1596#if EV_USE_NANOSLEEP 1940#if EV_USE_NANOSLEEP
1597 struct timespec ts; 1941 struct timespec ts;
1598 1942
1599 EV_TS_SET (ts, delay); 1943 EV_TS_SET (ts, delay);
1600 nanosleep (&ts, 0); 1944 nanosleep (&ts, 0);
1601#elif defined _WIN32 1945#elif defined _WIN32
1946 /* maybe this should round up, as ms is very low resolution */
1947 /* compared to select (µs) or nanosleep (ns) */
1602 Sleep ((unsigned long)(delay * 1e3)); 1948 Sleep ((unsigned long)(delay * 1e3));
1603#else 1949#else
1604 struct timeval tv; 1950 struct timeval tv;
1605 1951
1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1952 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1637 } 1983 }
1638 1984
1639 return ncur; 1985 return ncur;
1640} 1986}
1641 1987
1642static void * noinline ecb_cold 1988noinline ecb_cold
1989static void *
1643array_realloc (int elem, void *base, int *cur, int cnt) 1990array_realloc (int elem, void *base, int *cur, int cnt)
1644{ 1991{
1645 *cur = array_nextsize (elem, *cur, cnt); 1992 *cur = array_nextsize (elem, *cur, cnt);
1646 return ev_realloc (base, elem * *cur); 1993 return ev_realloc (base, elem * *cur);
1647} 1994}
1648 1995
1996#define array_needsize_noinit(base,offset,count)
1997
1649#define array_init_zero(base,count) \ 1998#define array_needsize_zerofill(base,offset,count) \
1650 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1999 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1651 2000
1652#define array_needsize(type,base,cur,cnt,init) \ 2001#define array_needsize(type,base,cur,cnt,init) \
1653 if (expect_false ((cnt) > (cur))) \ 2002 if (expect_false ((cnt) > (cur))) \
1654 { \ 2003 { \
1655 int ecb_unused ocur_ = (cur); \ 2004 ecb_unused int ocur_ = (cur); \
1656 (base) = (type *)array_realloc \ 2005 (base) = (type *)array_realloc \
1657 (sizeof (type), (base), &(cur), (cnt)); \ 2006 (sizeof (type), (base), &(cur), (cnt)); \
1658 init ((base) + (ocur_), (cur) - ocur_); \ 2007 init ((base), ocur_, ((cur) - ocur_)); \
1659 } 2008 }
1660 2009
1661#if 0 2010#if 0
1662#define array_slim(type,stem) \ 2011#define array_slim(type,stem) \
1663 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2012 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1672 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2021 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1673 2022
1674/*****************************************************************************/ 2023/*****************************************************************************/
1675 2024
1676/* dummy callback for pending events */ 2025/* dummy callback for pending events */
1677static void noinline 2026noinline
2027static void
1678pendingcb (EV_P_ ev_prepare *w, int revents) 2028pendingcb (EV_P_ ev_prepare *w, int revents)
1679{ 2029{
1680} 2030}
1681 2031
1682void noinline 2032noinline
2033void
1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2034ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1684{ 2035{
1685 W w_ = (W)w; 2036 W w_ = (W)w;
1686 int pri = ABSPRI (w_); 2037 int pri = ABSPRI (w_);
1687 2038
1688 if (expect_false (w_->pending)) 2039 if (expect_false (w_->pending))
1689 pendings [pri][w_->pending - 1].events |= revents; 2040 pendings [pri][w_->pending - 1].events |= revents;
1690 else 2041 else
1691 { 2042 {
1692 w_->pending = ++pendingcnt [pri]; 2043 w_->pending = ++pendingcnt [pri];
1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2044 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1694 pendings [pri][w_->pending - 1].w = w_; 2045 pendings [pri][w_->pending - 1].w = w_;
1695 pendings [pri][w_->pending - 1].events = revents; 2046 pendings [pri][w_->pending - 1].events = revents;
1696 } 2047 }
1697 2048
1698 pendingpri = NUMPRI - 1; 2049 pendingpri = NUMPRI - 1;
1699} 2050}
1700 2051
1701inline_speed void 2052inline_speed void
1702feed_reverse (EV_P_ W w) 2053feed_reverse (EV_P_ W w)
1703{ 2054{
1704 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2055 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1705 rfeeds [rfeedcnt++] = w; 2056 rfeeds [rfeedcnt++] = w;
1706} 2057}
1707 2058
1708inline_size void 2059inline_size void
1709feed_reverse_done (EV_P_ int revents) 2060feed_reverse_done (EV_P_ int revents)
… …
1749 if (expect_true (!anfd->reify)) 2100 if (expect_true (!anfd->reify))
1750 fd_event_nocheck (EV_A_ fd, revents); 2101 fd_event_nocheck (EV_A_ fd, revents);
1751} 2102}
1752 2103
1753void 2104void
1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2105ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1755{ 2106{
1756 if (fd >= 0 && fd < anfdmax) 2107 if (fd >= 0 && fd < anfdmax)
1757 fd_event_nocheck (EV_A_ fd, revents); 2108 fd_event_nocheck (EV_A_ fd, revents);
1758} 2109}
1759 2110
… …
1796 ev_io *w; 2147 ev_io *w;
1797 2148
1798 unsigned char o_events = anfd->events; 2149 unsigned char o_events = anfd->events;
1799 unsigned char o_reify = anfd->reify; 2150 unsigned char o_reify = anfd->reify;
1800 2151
1801 anfd->reify = 0; 2152 anfd->reify = 0;
1802 2153
1803 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1804 { 2155 {
1805 anfd->events = 0; 2156 anfd->events = 0;
1806 2157
… …
1817 2168
1818 fdchangecnt = 0; 2169 fdchangecnt = 0;
1819} 2170}
1820 2171
1821/* something about the given fd changed */ 2172/* something about the given fd changed */
1822inline_size void 2173inline_size
2174void
1823fd_change (EV_P_ int fd, int flags) 2175fd_change (EV_P_ int fd, int flags)
1824{ 2176{
1825 unsigned char reify = anfds [fd].reify; 2177 unsigned char reify = anfds [fd].reify;
1826 anfds [fd].reify |= flags; 2178 anfds [fd].reify |= flags;
1827 2179
1828 if (expect_true (!reify)) 2180 if (expect_true (!reify))
1829 { 2181 {
1830 ++fdchangecnt; 2182 ++fdchangecnt;
1831 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2183 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1832 fdchanges [fdchangecnt - 1] = fd; 2184 fdchanges [fdchangecnt - 1] = fd;
1833 } 2185 }
1834} 2186}
1835 2187
1836/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2188/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1837inline_speed void ecb_cold 2189inline_speed ecb_cold void
1838fd_kill (EV_P_ int fd) 2190fd_kill (EV_P_ int fd)
1839{ 2191{
1840 ev_io *w; 2192 ev_io *w;
1841 2193
1842 while ((w = (ev_io *)anfds [fd].head)) 2194 while ((w = (ev_io *)anfds [fd].head))
… …
1845 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2197 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1846 } 2198 }
1847} 2199}
1848 2200
1849/* check whether the given fd is actually valid, for error recovery */ 2201/* check whether the given fd is actually valid, for error recovery */
1850inline_size int ecb_cold 2202inline_size ecb_cold int
1851fd_valid (int fd) 2203fd_valid (int fd)
1852{ 2204{
1853#ifdef _WIN32 2205#ifdef _WIN32
1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2206 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1855#else 2207#else
1856 return fcntl (fd, F_GETFD) != -1; 2208 return fcntl (fd, F_GETFD) != -1;
1857#endif 2209#endif
1858} 2210}
1859 2211
1860/* called on EBADF to verify fds */ 2212/* called on EBADF to verify fds */
1861static void noinline ecb_cold 2213noinline ecb_cold
2214static void
1862fd_ebadf (EV_P) 2215fd_ebadf (EV_P)
1863{ 2216{
1864 int fd; 2217 int fd;
1865 2218
1866 for (fd = 0; fd < anfdmax; ++fd) 2219 for (fd = 0; fd < anfdmax; ++fd)
… …
1868 if (!fd_valid (fd) && errno == EBADF) 2221 if (!fd_valid (fd) && errno == EBADF)
1869 fd_kill (EV_A_ fd); 2222 fd_kill (EV_A_ fd);
1870} 2223}
1871 2224
1872/* called on ENOMEM in select/poll to kill some fds and retry */ 2225/* called on ENOMEM in select/poll to kill some fds and retry */
1873static void noinline ecb_cold 2226noinline ecb_cold
2227static void
1874fd_enomem (EV_P) 2228fd_enomem (EV_P)
1875{ 2229{
1876 int fd; 2230 int fd;
1877 2231
1878 for (fd = anfdmax; fd--; ) 2232 for (fd = anfdmax; fd--; )
… …
1882 break; 2236 break;
1883 } 2237 }
1884} 2238}
1885 2239
1886/* usually called after fork if backend needs to re-arm all fds from scratch */ 2240/* usually called after fork if backend needs to re-arm all fds from scratch */
1887static void noinline 2241noinline
2242static void
1888fd_rearm_all (EV_P) 2243fd_rearm_all (EV_P)
1889{ 2244{
1890 int fd; 2245 int fd;
1891 2246
1892 for (fd = 0; fd < anfdmax; ++fd) 2247 for (fd = 0; fd < anfdmax; ++fd)
… …
2073 2428
2074/*****************************************************************************/ 2429/*****************************************************************************/
2075 2430
2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2431#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2077 2432
2078static void noinline ecb_cold 2433noinline ecb_cold
2434static void
2079evpipe_init (EV_P) 2435evpipe_init (EV_P)
2080{ 2436{
2081 if (!ev_is_active (&pipe_w)) 2437 if (!ev_is_active (&pipe_w))
2082 { 2438 {
2083 int fds [2]; 2439 int fds [2];
… …
2094 while (pipe (fds)) 2450 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe"); 2451 ev_syserr ("(libev) error creating signal/async pipe");
2096 2452
2097 fd_intern (fds [0]); 2453 fd_intern (fds [0]);
2098 } 2454 }
2099
2100 fd_intern (fds [1]);
2101 2455
2102 evpipe [0] = fds [0]; 2456 evpipe [0] = fds [0];
2103 2457
2104 if (evpipe [1] < 0) 2458 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */ 2459 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2112 2466
2113 dup2 (fds [1], evpipe [1]); 2467 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]); 2468 close (fds [1]);
2115 } 2469 }
2116 2470
2471 fd_intern (evpipe [1]);
2472
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2473 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w); 2474 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */ 2475 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 } 2476 }
2121} 2477}
… …
2154#endif 2510#endif
2155 { 2511 {
2156#ifdef _WIN32 2512#ifdef _WIN32
2157 WSABUF buf; 2513 WSABUF buf;
2158 DWORD sent; 2514 DWORD sent;
2159 buf.buf = &buf; 2515 buf.buf = (char *)&buf;
2160 buf.len = 1; 2516 buf.len = 1;
2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2517 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2162#else 2518#else
2163 write (evpipe [1], &(evpipe [1]), 1); 2519 write (evpipe [1], &(evpipe [1]), 1);
2164#endif 2520#endif
… …
2236} 2592}
2237 2593
2238/*****************************************************************************/ 2594/*****************************************************************************/
2239 2595
2240void 2596void
2241ev_feed_signal (int signum) EV_THROW 2597ev_feed_signal (int signum) EV_NOEXCEPT
2242{ 2598{
2243#if EV_MULTIPLICITY 2599#if EV_MULTIPLICITY
2600 EV_P;
2244 ECB_MEMORY_FENCE_ACQUIRE; 2601 ECB_MEMORY_FENCE_ACQUIRE;
2245 EV_P = signals [signum - 1].loop; 2602 EV_A = signals [signum - 1].loop;
2246 2603
2247 if (!EV_A) 2604 if (!EV_A)
2248 return; 2605 return;
2249#endif 2606#endif
2250 2607
… …
2260#endif 2617#endif
2261 2618
2262 ev_feed_signal (signum); 2619 ev_feed_signal (signum);
2263} 2620}
2264 2621
2265void noinline 2622noinline
2623void
2266ev_feed_signal_event (EV_P_ int signum) EV_THROW 2624ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2267{ 2625{
2268 WL w; 2626 WL w;
2269 2627
2270 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2628 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2271 return; 2629 return;
… …
2380# include "ev_kqueue.c" 2738# include "ev_kqueue.c"
2381#endif 2739#endif
2382#if EV_USE_EPOLL 2740#if EV_USE_EPOLL
2383# include "ev_epoll.c" 2741# include "ev_epoll.c"
2384#endif 2742#endif
2743#if EV_USE_LINUXAIO
2744# include "ev_linuxaio.c"
2745#endif
2385#if EV_USE_POLL 2746#if EV_USE_POLL
2386# include "ev_poll.c" 2747# include "ev_poll.c"
2387#endif 2748#endif
2388#if EV_USE_SELECT 2749#if EV_USE_SELECT
2389# include "ev_select.c" 2750# include "ev_select.c"
2390#endif 2751#endif
2391 2752
2392int ecb_cold 2753ecb_cold int
2393ev_version_major (void) EV_THROW 2754ev_version_major (void) EV_NOEXCEPT
2394{ 2755{
2395 return EV_VERSION_MAJOR; 2756 return EV_VERSION_MAJOR;
2396} 2757}
2397 2758
2398int ecb_cold 2759ecb_cold int
2399ev_version_minor (void) EV_THROW 2760ev_version_minor (void) EV_NOEXCEPT
2400{ 2761{
2401 return EV_VERSION_MINOR; 2762 return EV_VERSION_MINOR;
2402} 2763}
2403 2764
2404/* return true if we are running with elevated privileges and should ignore env variables */ 2765/* return true if we are running with elevated privileges and should ignore env variables */
2405int inline_size ecb_cold 2766inline_size ecb_cold int
2406enable_secure (void) 2767enable_secure (void)
2407{ 2768{
2408#ifdef _WIN32 2769#ifdef _WIN32
2409 return 0; 2770 return 0;
2410#else 2771#else
2411 return getuid () != geteuid () 2772 return getuid () != geteuid ()
2412 || getgid () != getegid (); 2773 || getgid () != getegid ();
2413#endif 2774#endif
2414} 2775}
2415 2776
2416unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2417ev_supported_backends (void) EV_THROW 2779ev_supported_backends (void) EV_NOEXCEPT
2418{ 2780{
2419 unsigned int flags = 0; 2781 unsigned int flags = 0;
2420 2782
2421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2783 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2784 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2423 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2785 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2786 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2424 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2787 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2425 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2788 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2426 2789
2427 return flags; 2790 return flags;
2428} 2791}
2429 2792
2430unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2431ev_recommended_backends (void) EV_THROW 2795ev_recommended_backends (void) EV_NOEXCEPT
2432{ 2796{
2433 unsigned int flags = ev_supported_backends (); 2797 unsigned int flags = ev_supported_backends ();
2434 2798
2435#ifndef __NetBSD__ 2799#ifndef __NetBSD__
2436 /* kqueue is borked on everything but netbsd apparently */ 2800 /* kqueue is borked on everything but netbsd apparently */
… …
2444#endif 2808#endif
2445#ifdef __FreeBSD__ 2809#ifdef __FreeBSD__
2446 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2810 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2447#endif 2811#endif
2448 2812
2813 /* TODO: linuxaio is very experimental */
2814#if !EV_RECOMMEND_LINUXAIO
2815 flags &= ~EVBACKEND_LINUXAIO;
2816#endif
2817
2449 return flags; 2818 return flags;
2450} 2819}
2451 2820
2452unsigned int ecb_cold 2821ecb_cold
2822unsigned int
2453ev_embeddable_backends (void) EV_THROW 2823ev_embeddable_backends (void) EV_NOEXCEPT
2454{ 2824{
2455 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2825 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2456 2826
2457 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2827 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2458 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2828 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2460 2830
2461 return flags; 2831 return flags;
2462} 2832}
2463 2833
2464unsigned int 2834unsigned int
2465ev_backend (EV_P) EV_THROW 2835ev_backend (EV_P) EV_NOEXCEPT
2466{ 2836{
2467 return backend; 2837 return backend;
2468} 2838}
2469 2839
2470#if EV_FEATURE_API 2840#if EV_FEATURE_API
2471unsigned int 2841unsigned int
2472ev_iteration (EV_P) EV_THROW 2842ev_iteration (EV_P) EV_NOEXCEPT
2473{ 2843{
2474 return loop_count; 2844 return loop_count;
2475} 2845}
2476 2846
2477unsigned int 2847unsigned int
2478ev_depth (EV_P) EV_THROW 2848ev_depth (EV_P) EV_NOEXCEPT
2479{ 2849{
2480 return loop_depth; 2850 return loop_depth;
2481} 2851}
2482 2852
2483void 2853void
2484ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2854ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2485{ 2855{
2486 io_blocktime = interval; 2856 io_blocktime = interval;
2487} 2857}
2488 2858
2489void 2859void
2490ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2860ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2491{ 2861{
2492 timeout_blocktime = interval; 2862 timeout_blocktime = interval;
2493} 2863}
2494 2864
2495void 2865void
2496ev_set_userdata (EV_P_ void *data) EV_THROW 2866ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2497{ 2867{
2498 userdata = data; 2868 userdata = data;
2499} 2869}
2500 2870
2501void * 2871void *
2502ev_userdata (EV_P) EV_THROW 2872ev_userdata (EV_P) EV_NOEXCEPT
2503{ 2873{
2504 return userdata; 2874 return userdata;
2505} 2875}
2506 2876
2507void 2877void
2508ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2878ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2509{ 2879{
2510 invoke_cb = invoke_pending_cb; 2880 invoke_cb = invoke_pending_cb;
2511} 2881}
2512 2882
2513void 2883void
2514ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2884ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2515{ 2885{
2516 release_cb = release; 2886 release_cb = release;
2517 acquire_cb = acquire; 2887 acquire_cb = acquire;
2518} 2888}
2519#endif 2889#endif
2520 2890
2521/* initialise a loop structure, must be zero-initialised */ 2891/* initialise a loop structure, must be zero-initialised */
2522static void noinline ecb_cold 2892noinline ecb_cold
2893static void
2523loop_init (EV_P_ unsigned int flags) EV_THROW 2894loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2524{ 2895{
2525 if (!backend) 2896 if (!backend)
2526 { 2897 {
2527 origflags = flags; 2898 origflags = flags;
2528 2899
… …
2586 2957
2587 if (!(flags & EVBACKEND_MASK)) 2958 if (!(flags & EVBACKEND_MASK))
2588 flags |= ev_recommended_backends (); 2959 flags |= ev_recommended_backends ();
2589 2960
2590#if EV_USE_IOCP 2961#if EV_USE_IOCP
2591 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2962 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2592#endif 2963#endif
2593#if EV_USE_PORT 2964#if EV_USE_PORT
2594 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2965 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2595#endif 2966#endif
2596#if EV_USE_KQUEUE 2967#if EV_USE_KQUEUE
2597 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2968 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2969#endif
2970#if EV_USE_LINUXAIO
2971 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2598#endif 2972#endif
2599#if EV_USE_EPOLL 2973#if EV_USE_EPOLL
2600 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2974 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2601#endif 2975#endif
2602#if EV_USE_POLL 2976#if EV_USE_POLL
2603 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2977 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2604#endif 2978#endif
2605#if EV_USE_SELECT 2979#if EV_USE_SELECT
2606 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2980 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2607#endif 2981#endif
2608 2982
2609 ev_prepare_init (&pending_w, pendingcb); 2983 ev_prepare_init (&pending_w, pendingcb);
2610 2984
2611#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2985#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2614#endif 2988#endif
2615 } 2989 }
2616} 2990}
2617 2991
2618/* free up a loop structure */ 2992/* free up a loop structure */
2619void ecb_cold 2993ecb_cold
2994void
2620ev_loop_destroy (EV_P) 2995ev_loop_destroy (EV_P)
2621{ 2996{
2622 int i; 2997 int i;
2623 2998
2624#if EV_MULTIPLICITY 2999#if EV_MULTIPLICITY
… …
2665 3040
2666 if (backend_fd >= 0) 3041 if (backend_fd >= 0)
2667 close (backend_fd); 3042 close (backend_fd);
2668 3043
2669#if EV_USE_IOCP 3044#if EV_USE_IOCP
2670 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3045 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2671#endif 3046#endif
2672#if EV_USE_PORT 3047#if EV_USE_PORT
2673 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3048 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2674#endif 3049#endif
2675#if EV_USE_KQUEUE 3050#if EV_USE_KQUEUE
2676 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3051 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3052#endif
3053#if EV_USE_LINUXAIO
3054 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2677#endif 3055#endif
2678#if EV_USE_EPOLL 3056#if EV_USE_EPOLL
2679 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3057 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2680#endif 3058#endif
2681#if EV_USE_POLL 3059#if EV_USE_POLL
2682 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3060 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2683#endif 3061#endif
2684#if EV_USE_SELECT 3062#if EV_USE_SELECT
2685 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3063 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2686#endif 3064#endif
2687 3065
2688 for (i = NUMPRI; i--; ) 3066 for (i = NUMPRI; i--; )
2689 { 3067 {
2690 array_free (pending, [i]); 3068 array_free (pending, [i]);
… …
2732 3110
2733inline_size void 3111inline_size void
2734loop_fork (EV_P) 3112loop_fork (EV_P)
2735{ 3113{
2736#if EV_USE_PORT 3114#if EV_USE_PORT
2737 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3115 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2738#endif 3116#endif
2739#if EV_USE_KQUEUE 3117#if EV_USE_KQUEUE
2740 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3118 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3119#endif
3120#if EV_USE_LINUXAIO
3121 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2741#endif 3122#endif
2742#if EV_USE_EPOLL 3123#if EV_USE_EPOLL
2743 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3124 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2744#endif 3125#endif
2745#if EV_USE_INOTIFY 3126#if EV_USE_INOTIFY
2746 infy_fork (EV_A); 3127 infy_fork (EV_A);
2747#endif 3128#endif
2748 3129
2749#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2750 if (ev_is_active (&pipe_w)) 3131 if (ev_is_active (&pipe_w) && postfork != 2)
2751 { 3132 {
2752 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3133 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2753 3134
2754 ev_ref (EV_A); 3135 ev_ref (EV_A);
2755 ev_io_stop (EV_A_ &pipe_w); 3136 ev_io_stop (EV_A_ &pipe_w);
… …
2766 postfork = 0; 3147 postfork = 0;
2767} 3148}
2768 3149
2769#if EV_MULTIPLICITY 3150#if EV_MULTIPLICITY
2770 3151
3152ecb_cold
2771struct ev_loop * ecb_cold 3153struct ev_loop *
2772ev_loop_new (unsigned int flags) EV_THROW 3154ev_loop_new (unsigned int flags) EV_NOEXCEPT
2773{ 3155{
2774 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3156 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2775 3157
2776 memset (EV_A, 0, sizeof (struct ev_loop)); 3158 memset (EV_A, 0, sizeof (struct ev_loop));
2777 loop_init (EV_A_ flags); 3159 loop_init (EV_A_ flags);
… …
2784} 3166}
2785 3167
2786#endif /* multiplicity */ 3168#endif /* multiplicity */
2787 3169
2788#if EV_VERIFY 3170#if EV_VERIFY
2789static void noinline ecb_cold 3171noinline ecb_cold
3172static void
2790verify_watcher (EV_P_ W w) 3173verify_watcher (EV_P_ W w)
2791{ 3174{
2792 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3175 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2793 3176
2794 if (w->pending) 3177 if (w->pending)
2795 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3178 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2796} 3179}
2797 3180
2798static void noinline ecb_cold 3181noinline ecb_cold
3182static void
2799verify_heap (EV_P_ ANHE *heap, int N) 3183verify_heap (EV_P_ ANHE *heap, int N)
2800{ 3184{
2801 int i; 3185 int i;
2802 3186
2803 for (i = HEAP0; i < N + HEAP0; ++i) 3187 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2808 3192
2809 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3193 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2810 } 3194 }
2811} 3195}
2812 3196
2813static void noinline ecb_cold 3197noinline ecb_cold
3198static void
2814array_verify (EV_P_ W *ws, int cnt) 3199array_verify (EV_P_ W *ws, int cnt)
2815{ 3200{
2816 while (cnt--) 3201 while (cnt--)
2817 { 3202 {
2818 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3203 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2821} 3206}
2822#endif 3207#endif
2823 3208
2824#if EV_FEATURE_API 3209#if EV_FEATURE_API
2825void ecb_cold 3210void ecb_cold
2826ev_verify (EV_P) EV_THROW 3211ev_verify (EV_P) EV_NOEXCEPT
2827{ 3212{
2828#if EV_VERIFY 3213#if EV_VERIFY
2829 int i; 3214 int i;
2830 WL w, w2; 3215 WL w, w2;
2831 3216
… …
2907#endif 3292#endif
2908} 3293}
2909#endif 3294#endif
2910 3295
2911#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
3297ecb_cold
2912struct ev_loop * ecb_cold 3298struct ev_loop *
2913#else 3299#else
2914int 3300int
2915#endif 3301#endif
2916ev_default_loop (unsigned int flags) EV_THROW 3302ev_default_loop (unsigned int flags) EV_NOEXCEPT
2917{ 3303{
2918 if (!ev_default_loop_ptr) 3304 if (!ev_default_loop_ptr)
2919 { 3305 {
2920#if EV_MULTIPLICITY 3306#if EV_MULTIPLICITY
2921 EV_P = ev_default_loop_ptr = &default_loop_struct; 3307 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2940 3326
2941 return ev_default_loop_ptr; 3327 return ev_default_loop_ptr;
2942} 3328}
2943 3329
2944void 3330void
2945ev_loop_fork (EV_P) EV_THROW 3331ev_loop_fork (EV_P) EV_NOEXCEPT
2946{ 3332{
2947 postfork = 1; 3333 postfork = 1;
2948} 3334}
2949 3335
2950/*****************************************************************************/ 3336/*****************************************************************************/
… …
2954{ 3340{
2955 EV_CB_INVOKE ((W)w, revents); 3341 EV_CB_INVOKE ((W)w, revents);
2956} 3342}
2957 3343
2958unsigned int 3344unsigned int
2959ev_pending_count (EV_P) EV_THROW 3345ev_pending_count (EV_P) EV_NOEXCEPT
2960{ 3346{
2961 int pri; 3347 int pri;
2962 unsigned int count = 0; 3348 unsigned int count = 0;
2963 3349
2964 for (pri = NUMPRI; pri--; ) 3350 for (pri = NUMPRI; pri--; )
2965 count += pendingcnt [pri]; 3351 count += pendingcnt [pri];
2966 3352
2967 return count; 3353 return count;
2968} 3354}
2969 3355
2970void noinline 3356noinline
3357void
2971ev_invoke_pending (EV_P) 3358ev_invoke_pending (EV_P)
2972{ 3359{
2973 pendingpri = NUMPRI; 3360 pendingpri = NUMPRI;
2974 3361
2975 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3362 do
2976 { 3363 {
2977 --pendingpri; 3364 --pendingpri;
2978 3365
3366 /* pendingpri possibly gets modified in the inner loop */
2979 while (pendingcnt [pendingpri]) 3367 while (pendingcnt [pendingpri])
2980 { 3368 {
2981 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3369 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2982 3370
2983 p->w->pending = 0; 3371 p->w->pending = 0;
2984 EV_CB_INVOKE (p->w, p->events); 3372 EV_CB_INVOKE (p->w, p->events);
2985 EV_FREQUENT_CHECK; 3373 EV_FREQUENT_CHECK;
2986 } 3374 }
2987 } 3375 }
3376 while (pendingpri);
2988} 3377}
2989 3378
2990#if EV_IDLE_ENABLE 3379#if EV_IDLE_ENABLE
2991/* make idle watchers pending. this handles the "call-idle */ 3380/* make idle watchers pending. this handles the "call-idle */
2992/* only when higher priorities are idle" logic */ 3381/* only when higher priorities are idle" logic */
… …
3050 } 3439 }
3051} 3440}
3052 3441
3053#if EV_PERIODIC_ENABLE 3442#if EV_PERIODIC_ENABLE
3054 3443
3055static void noinline 3444noinline
3445static void
3056periodic_recalc (EV_P_ ev_periodic *w) 3446periodic_recalc (EV_P_ ev_periodic *w)
3057{ 3447{
3058 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3448 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3059 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3449 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3060 3450
… …
3118 } 3508 }
3119} 3509}
3120 3510
3121/* simply recalculate all periodics */ 3511/* simply recalculate all periodics */
3122/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3512/* TODO: maybe ensure that at least one event happens when jumping forward? */
3123static void noinline ecb_cold 3513noinline ecb_cold
3514static void
3124periodics_reschedule (EV_P) 3515periodics_reschedule (EV_P)
3125{ 3516{
3126 int i; 3517 int i;
3127 3518
3128 /* adjust periodics after time jump */ 3519 /* adjust periodics after time jump */
… …
3141 reheap (periodics, periodiccnt); 3532 reheap (periodics, periodiccnt);
3142} 3533}
3143#endif 3534#endif
3144 3535
3145/* adjust all timers by a given offset */ 3536/* adjust all timers by a given offset */
3146static void noinline ecb_cold 3537noinline ecb_cold
3538static void
3147timers_reschedule (EV_P_ ev_tstamp adjust) 3539timers_reschedule (EV_P_ ev_tstamp adjust)
3148{ 3540{
3149 int i; 3541 int i;
3150 3542
3151 for (i = 0; i < timercnt; ++i) 3543 for (i = 0; i < timercnt; ++i)
… …
3357 { 3749 {
3358 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3750 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3359 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3751 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3360 } 3752 }
3361 3753
3362
3363 /* update ev_rt_now, do magic */ 3754 /* update ev_rt_now, do magic */
3364 time_update (EV_A_ waittime + sleeptime); 3755 time_update (EV_A_ waittime + sleeptime);
3365 } 3756 }
3366 3757
3367 /* queue pending timers and reschedule them */ 3758 /* queue pending timers and reschedule them */
… …
3398 3789
3399 return activecnt; 3790 return activecnt;
3400} 3791}
3401 3792
3402void 3793void
3403ev_break (EV_P_ int how) EV_THROW 3794ev_break (EV_P_ int how) EV_NOEXCEPT
3404{ 3795{
3405 loop_done = how; 3796 loop_done = how;
3406} 3797}
3407 3798
3408void 3799void
3409ev_ref (EV_P) EV_THROW 3800ev_ref (EV_P) EV_NOEXCEPT
3410{ 3801{
3411 ++activecnt; 3802 ++activecnt;
3412} 3803}
3413 3804
3414void 3805void
3415ev_unref (EV_P) EV_THROW 3806ev_unref (EV_P) EV_NOEXCEPT
3416{ 3807{
3417 --activecnt; 3808 --activecnt;
3418} 3809}
3419 3810
3420void 3811void
3421ev_now_update (EV_P) EV_THROW 3812ev_now_update (EV_P) EV_NOEXCEPT
3422{ 3813{
3423 time_update (EV_A_ 1e100); 3814 time_update (EV_A_ 1e100);
3424} 3815}
3425 3816
3426void 3817void
3427ev_suspend (EV_P) EV_THROW 3818ev_suspend (EV_P) EV_NOEXCEPT
3428{ 3819{
3429 ev_now_update (EV_A); 3820 ev_now_update (EV_A);
3430} 3821}
3431 3822
3432void 3823void
3433ev_resume (EV_P) EV_THROW 3824ev_resume (EV_P) EV_NOEXCEPT
3434{ 3825{
3435 ev_tstamp mn_prev = mn_now; 3826 ev_tstamp mn_prev = mn_now;
3436 3827
3437 ev_now_update (EV_A); 3828 ev_now_update (EV_A);
3438 timers_reschedule (EV_A_ mn_now - mn_prev); 3829 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3477 w->pending = 0; 3868 w->pending = 0;
3478 } 3869 }
3479} 3870}
3480 3871
3481int 3872int
3482ev_clear_pending (EV_P_ void *w) EV_THROW 3873ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3483{ 3874{
3484 W w_ = (W)w; 3875 W w_ = (W)w;
3485 int pending = w_->pending; 3876 int pending = w_->pending;
3486 3877
3487 if (expect_true (pending)) 3878 if (expect_true (pending))
… …
3519 w->active = 0; 3910 w->active = 0;
3520} 3911}
3521 3912
3522/*****************************************************************************/ 3913/*****************************************************************************/
3523 3914
3524void noinline 3915noinline
3916void
3525ev_io_start (EV_P_ ev_io *w) EV_THROW 3917ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3526{ 3918{
3527 int fd = w->fd; 3919 int fd = w->fd;
3528 3920
3529 if (expect_false (ev_is_active (w))) 3921 if (expect_false (ev_is_active (w)))
3530 return; 3922 return;
3531 3923
3532 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3924 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3533 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3925 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3534 3926
3927#if EV_VERIFY >= 2
3928 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
3929#endif
3535 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3536 3931
3537 ev_start (EV_A_ (W)w, 1); 3932 ev_start (EV_A_ (W)w, 1);
3538 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3933 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3539 wlist_add (&anfds[fd].head, (WL)w); 3934 wlist_add (&anfds[fd].head, (WL)w);
3540 3935
3541 /* common bug, apparently */ 3936 /* common bug, apparently */
3542 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3937 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3543 3938
… …
3545 w->events &= ~EV__IOFDSET; 3940 w->events &= ~EV__IOFDSET;
3546 3941
3547 EV_FREQUENT_CHECK; 3942 EV_FREQUENT_CHECK;
3548} 3943}
3549 3944
3550void noinline 3945noinline
3946void
3551ev_io_stop (EV_P_ ev_io *w) EV_THROW 3947ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3552{ 3948{
3553 clear_pending (EV_A_ (W)w); 3949 clear_pending (EV_A_ (W)w);
3554 if (expect_false (!ev_is_active (w))) 3950 if (expect_false (!ev_is_active (w)))
3555 return; 3951 return;
3556 3952
3557 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3953 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3558 3954
3955#if EV_VERIFY >= 2
3956 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
3957#endif
3559 EV_FREQUENT_CHECK; 3958 EV_FREQUENT_CHECK;
3560 3959
3561 wlist_del (&anfds[w->fd].head, (WL)w); 3960 wlist_del (&anfds[w->fd].head, (WL)w);
3562 ev_stop (EV_A_ (W)w); 3961 ev_stop (EV_A_ (W)w);
3563 3962
3564 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3963 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3565 3964
3566 EV_FREQUENT_CHECK; 3965 EV_FREQUENT_CHECK;
3567} 3966}
3568 3967
3569void noinline 3968noinline
3969void
3570ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3970ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3571{ 3971{
3572 if (expect_false (ev_is_active (w))) 3972 if (expect_false (ev_is_active (w)))
3573 return; 3973 return;
3574 3974
3575 ev_at (w) += mn_now; 3975 ev_at (w) += mn_now;
… …
3578 3978
3579 EV_FREQUENT_CHECK; 3979 EV_FREQUENT_CHECK;
3580 3980
3581 ++timercnt; 3981 ++timercnt;
3582 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3982 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3583 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3983 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3584 ANHE_w (timers [ev_active (w)]) = (WT)w; 3984 ANHE_w (timers [ev_active (w)]) = (WT)w;
3585 ANHE_at_cache (timers [ev_active (w)]); 3985 ANHE_at_cache (timers [ev_active (w)]);
3586 upheap (timers, ev_active (w)); 3986 upheap (timers, ev_active (w));
3587 3987
3588 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3589 3989
3590 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3990 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3591} 3991}
3592 3992
3593void noinline 3993noinline
3994void
3594ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3995ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3595{ 3996{
3596 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3597 if (expect_false (!ev_is_active (w))) 3998 if (expect_false (!ev_is_active (w)))
3598 return; 3999 return;
3599 4000
… …
3618 ev_stop (EV_A_ (W)w); 4019 ev_stop (EV_A_ (W)w);
3619 4020
3620 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
3621} 4022}
3622 4023
3623void noinline 4024noinline
4025void
3624ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4026ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3625{ 4027{
3626 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3627 4029
3628 clear_pending (EV_A_ (W)w); 4030 clear_pending (EV_A_ (W)w);
3629 4031
… …
3646 4048
3647 EV_FREQUENT_CHECK; 4049 EV_FREQUENT_CHECK;
3648} 4050}
3649 4051
3650ev_tstamp 4052ev_tstamp
3651ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4053ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3652{ 4054{
3653 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4055 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3654} 4056}
3655 4057
3656#if EV_PERIODIC_ENABLE 4058#if EV_PERIODIC_ENABLE
3657void noinline 4059noinline
4060void
3658ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4061ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3659{ 4062{
3660 if (expect_false (ev_is_active (w))) 4063 if (expect_false (ev_is_active (w)))
3661 return; 4064 return;
3662 4065
3663 if (w->reschedule_cb) 4066 if (w->reschedule_cb)
… …
3672 4075
3673 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3674 4077
3675 ++periodiccnt; 4078 ++periodiccnt;
3676 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4079 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3677 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4080 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3678 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4081 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3679 ANHE_at_cache (periodics [ev_active (w)]); 4082 ANHE_at_cache (periodics [ev_active (w)]);
3680 upheap (periodics, ev_active (w)); 4083 upheap (periodics, ev_active (w));
3681 4084
3682 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
3683 4086
3684 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4087 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3685} 4088}
3686 4089
3687void noinline 4090noinline
4091void
3688ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4092ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3689{ 4093{
3690 clear_pending (EV_A_ (W)w); 4094 clear_pending (EV_A_ (W)w);
3691 if (expect_false (!ev_is_active (w))) 4095 if (expect_false (!ev_is_active (w)))
3692 return; 4096 return;
3693 4097
… …
3710 ev_stop (EV_A_ (W)w); 4114 ev_stop (EV_A_ (W)w);
3711 4115
3712 EV_FREQUENT_CHECK; 4116 EV_FREQUENT_CHECK;
3713} 4117}
3714 4118
3715void noinline 4119noinline
4120void
3716ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4121ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3717{ 4122{
3718 /* TODO: use adjustheap and recalculation */ 4123 /* TODO: use adjustheap and recalculation */
3719 ev_periodic_stop (EV_A_ w); 4124 ev_periodic_stop (EV_A_ w);
3720 ev_periodic_start (EV_A_ w); 4125 ev_periodic_start (EV_A_ w);
3721} 4126}
… …
3725# define SA_RESTART 0 4130# define SA_RESTART 0
3726#endif 4131#endif
3727 4132
3728#if EV_SIGNAL_ENABLE 4133#if EV_SIGNAL_ENABLE
3729 4134
3730void noinline 4135noinline
4136void
3731ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4137ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3732{ 4138{
3733 if (expect_false (ev_is_active (w))) 4139 if (expect_false (ev_is_active (w)))
3734 return; 4140 return;
3735 4141
3736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4142 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3807 } 4213 }
3808 4214
3809 EV_FREQUENT_CHECK; 4215 EV_FREQUENT_CHECK;
3810} 4216}
3811 4217
3812void noinline 4218noinline
4219void
3813ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4220ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3814{ 4221{
3815 clear_pending (EV_A_ (W)w); 4222 clear_pending (EV_A_ (W)w);
3816 if (expect_false (!ev_is_active (w))) 4223 if (expect_false (!ev_is_active (w)))
3817 return; 4224 return;
3818 4225
… …
3849#endif 4256#endif
3850 4257
3851#if EV_CHILD_ENABLE 4258#if EV_CHILD_ENABLE
3852 4259
3853void 4260void
3854ev_child_start (EV_P_ ev_child *w) EV_THROW 4261ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3855{ 4262{
3856#if EV_MULTIPLICITY 4263#if EV_MULTIPLICITY
3857 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4264 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3858#endif 4265#endif
3859 if (expect_false (ev_is_active (w))) 4266 if (expect_false (ev_is_active (w)))
… …
3866 4273
3867 EV_FREQUENT_CHECK; 4274 EV_FREQUENT_CHECK;
3868} 4275}
3869 4276
3870void 4277void
3871ev_child_stop (EV_P_ ev_child *w) EV_THROW 4278ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3872{ 4279{
3873 clear_pending (EV_A_ (W)w); 4280 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4281 if (expect_false (!ev_is_active (w)))
3875 return; 4282 return;
3876 4283
… …
3893 4300
3894#define DEF_STAT_INTERVAL 5.0074891 4301#define DEF_STAT_INTERVAL 5.0074891
3895#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4302#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3896#define MIN_STAT_INTERVAL 0.1074891 4303#define MIN_STAT_INTERVAL 0.1074891
3897 4304
3898static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4305noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3899 4306
3900#if EV_USE_INOTIFY 4307#if EV_USE_INOTIFY
3901 4308
3902/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4309/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3903# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4310# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3904 4311
3905static void noinline 4312noinline
4313static void
3906infy_add (EV_P_ ev_stat *w) 4314infy_add (EV_P_ ev_stat *w)
3907{ 4315{
3908 w->wd = inotify_add_watch (fs_fd, w->path, 4316 w->wd = inotify_add_watch (fs_fd, w->path,
3909 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4317 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4318 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3974 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4382 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3975 ev_timer_again (EV_A_ &w->timer); 4383 ev_timer_again (EV_A_ &w->timer);
3976 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4384 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3977} 4385}
3978 4386
3979static void noinline 4387noinline
4388static void
3980infy_del (EV_P_ ev_stat *w) 4389infy_del (EV_P_ ev_stat *w)
3981{ 4390{
3982 int slot; 4391 int slot;
3983 int wd = w->wd; 4392 int wd = w->wd;
3984 4393
… …
3991 4400
3992 /* remove this watcher, if others are watching it, they will rearm */ 4401 /* remove this watcher, if others are watching it, they will rearm */
3993 inotify_rm_watch (fs_fd, wd); 4402 inotify_rm_watch (fs_fd, wd);
3994} 4403}
3995 4404
3996static void noinline 4405noinline
4406static void
3997infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4407infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3998{ 4408{
3999 if (slot < 0) 4409 if (slot < 0)
4000 /* overflow, need to check for all hash slots */ 4410 /* overflow, need to check for all hash slots */
4001 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4411 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4037 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4447 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4038 ofs += sizeof (struct inotify_event) + ev->len; 4448 ofs += sizeof (struct inotify_event) + ev->len;
4039 } 4449 }
4040} 4450}
4041 4451
4042inline_size void ecb_cold 4452inline_size ecb_cold
4453void
4043ev_check_2625 (EV_P) 4454ev_check_2625 (EV_P)
4044{ 4455{
4045 /* kernels < 2.6.25 are borked 4456 /* kernels < 2.6.25 are borked
4046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4457 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4047 */ 4458 */
… …
4137#else 4548#else
4138# define EV_LSTAT(p,b) lstat (p, b) 4549# define EV_LSTAT(p,b) lstat (p, b)
4139#endif 4550#endif
4140 4551
4141void 4552void
4142ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4553ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4143{ 4554{
4144 if (lstat (w->path, &w->attr) < 0) 4555 if (lstat (w->path, &w->attr) < 0)
4145 w->attr.st_nlink = 0; 4556 w->attr.st_nlink = 0;
4146 else if (!w->attr.st_nlink) 4557 else if (!w->attr.st_nlink)
4147 w->attr.st_nlink = 1; 4558 w->attr.st_nlink = 1;
4148} 4559}
4149 4560
4150static void noinline 4561noinline
4562static void
4151stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4563stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4152{ 4564{
4153 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4565 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4154 4566
4155 ev_statdata prev = w->attr; 4567 ev_statdata prev = w->attr;
… …
4186 ev_feed_event (EV_A_ w, EV_STAT); 4598 ev_feed_event (EV_A_ w, EV_STAT);
4187 } 4599 }
4188} 4600}
4189 4601
4190void 4602void
4191ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4603ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4192{ 4604{
4193 if (expect_false (ev_is_active (w))) 4605 if (expect_false (ev_is_active (w)))
4194 return; 4606 return;
4195 4607
4196 ev_stat_stat (EV_A_ w); 4608 ev_stat_stat (EV_A_ w);
… …
4217 4629
4218 EV_FREQUENT_CHECK; 4630 EV_FREQUENT_CHECK;
4219} 4631}
4220 4632
4221void 4633void
4222ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4634ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4223{ 4635{
4224 clear_pending (EV_A_ (W)w); 4636 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4637 if (expect_false (!ev_is_active (w)))
4226 return; 4638 return;
4227 4639
… …
4243} 4655}
4244#endif 4656#endif
4245 4657
4246#if EV_IDLE_ENABLE 4658#if EV_IDLE_ENABLE
4247void 4659void
4248ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4660ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4249{ 4661{
4250 if (expect_false (ev_is_active (w))) 4662 if (expect_false (ev_is_active (w)))
4251 return; 4663 return;
4252 4664
4253 pri_adjust (EV_A_ (W)w); 4665 pri_adjust (EV_A_ (W)w);
… …
4258 int active = ++idlecnt [ABSPRI (w)]; 4670 int active = ++idlecnt [ABSPRI (w)];
4259 4671
4260 ++idleall; 4672 ++idleall;
4261 ev_start (EV_A_ (W)w, active); 4673 ev_start (EV_A_ (W)w, active);
4262 4674
4263 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4675 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4264 idles [ABSPRI (w)][active - 1] = w; 4676 idles [ABSPRI (w)][active - 1] = w;
4265 } 4677 }
4266 4678
4267 EV_FREQUENT_CHECK; 4679 EV_FREQUENT_CHECK;
4268} 4680}
4269 4681
4270void 4682void
4271ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4683ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4272{ 4684{
4273 clear_pending (EV_A_ (W)w); 4685 clear_pending (EV_A_ (W)w);
4274 if (expect_false (!ev_is_active (w))) 4686 if (expect_false (!ev_is_active (w)))
4275 return; 4687 return;
4276 4688
… …
4290} 4702}
4291#endif 4703#endif
4292 4704
4293#if EV_PREPARE_ENABLE 4705#if EV_PREPARE_ENABLE
4294void 4706void
4295ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4707ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4296{ 4708{
4297 if (expect_false (ev_is_active (w))) 4709 if (expect_false (ev_is_active (w)))
4298 return; 4710 return;
4299 4711
4300 EV_FREQUENT_CHECK; 4712 EV_FREQUENT_CHECK;
4301 4713
4302 ev_start (EV_A_ (W)w, ++preparecnt); 4714 ev_start (EV_A_ (W)w, ++preparecnt);
4303 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4715 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4304 prepares [preparecnt - 1] = w; 4716 prepares [preparecnt - 1] = w;
4305 4717
4306 EV_FREQUENT_CHECK; 4718 EV_FREQUENT_CHECK;
4307} 4719}
4308 4720
4309void 4721void
4310ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4722ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4311{ 4723{
4312 clear_pending (EV_A_ (W)w); 4724 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w))) 4725 if (expect_false (!ev_is_active (w)))
4314 return; 4726 return;
4315 4727
… …
4328} 4740}
4329#endif 4741#endif
4330 4742
4331#if EV_CHECK_ENABLE 4743#if EV_CHECK_ENABLE
4332void 4744void
4333ev_check_start (EV_P_ ev_check *w) EV_THROW 4745ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4334{ 4746{
4335 if (expect_false (ev_is_active (w))) 4747 if (expect_false (ev_is_active (w)))
4336 return; 4748 return;
4337 4749
4338 EV_FREQUENT_CHECK; 4750 EV_FREQUENT_CHECK;
4339 4751
4340 ev_start (EV_A_ (W)w, ++checkcnt); 4752 ev_start (EV_A_ (W)w, ++checkcnt);
4341 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4753 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4342 checks [checkcnt - 1] = w; 4754 checks [checkcnt - 1] = w;
4343 4755
4344 EV_FREQUENT_CHECK; 4756 EV_FREQUENT_CHECK;
4345} 4757}
4346 4758
4347void 4759void
4348ev_check_stop (EV_P_ ev_check *w) EV_THROW 4760ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4349{ 4761{
4350 clear_pending (EV_A_ (W)w); 4762 clear_pending (EV_A_ (W)w);
4351 if (expect_false (!ev_is_active (w))) 4763 if (expect_false (!ev_is_active (w)))
4352 return; 4764 return;
4353 4765
… …
4365 EV_FREQUENT_CHECK; 4777 EV_FREQUENT_CHECK;
4366} 4778}
4367#endif 4779#endif
4368 4780
4369#if EV_EMBED_ENABLE 4781#if EV_EMBED_ENABLE
4370void noinline 4782noinline
4783void
4371ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4784ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4372{ 4785{
4373 ev_run (w->other, EVRUN_NOWAIT); 4786 ev_run (w->other, EVRUN_NOWAIT);
4374} 4787}
4375 4788
4376static void 4789static void
… …
4424 ev_idle_stop (EV_A_ idle); 4837 ev_idle_stop (EV_A_ idle);
4425} 4838}
4426#endif 4839#endif
4427 4840
4428void 4841void
4429ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4842ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4430{ 4843{
4431 if (expect_false (ev_is_active (w))) 4844 if (expect_false (ev_is_active (w)))
4432 return; 4845 return;
4433 4846
4434 { 4847 {
… …
4455 4868
4456 EV_FREQUENT_CHECK; 4869 EV_FREQUENT_CHECK;
4457} 4870}
4458 4871
4459void 4872void
4460ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4873ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4461{ 4874{
4462 clear_pending (EV_A_ (W)w); 4875 clear_pending (EV_A_ (W)w);
4463 if (expect_false (!ev_is_active (w))) 4876 if (expect_false (!ev_is_active (w)))
4464 return; 4877 return;
4465 4878
… …
4475} 4888}
4476#endif 4889#endif
4477 4890
4478#if EV_FORK_ENABLE 4891#if EV_FORK_ENABLE
4479void 4892void
4480ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4893ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4481{ 4894{
4482 if (expect_false (ev_is_active (w))) 4895 if (expect_false (ev_is_active (w)))
4483 return; 4896 return;
4484 4897
4485 EV_FREQUENT_CHECK; 4898 EV_FREQUENT_CHECK;
4486 4899
4487 ev_start (EV_A_ (W)w, ++forkcnt); 4900 ev_start (EV_A_ (W)w, ++forkcnt);
4488 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4901 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4489 forks [forkcnt - 1] = w; 4902 forks [forkcnt - 1] = w;
4490 4903
4491 EV_FREQUENT_CHECK; 4904 EV_FREQUENT_CHECK;
4492} 4905}
4493 4906
4494void 4907void
4495ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4908ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4496{ 4909{
4497 clear_pending (EV_A_ (W)w); 4910 clear_pending (EV_A_ (W)w);
4498 if (expect_false (!ev_is_active (w))) 4911 if (expect_false (!ev_is_active (w)))
4499 return; 4912 return;
4500 4913
… …
4513} 4926}
4514#endif 4927#endif
4515 4928
4516#if EV_CLEANUP_ENABLE 4929#if EV_CLEANUP_ENABLE
4517void 4930void
4518ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4931ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4519{ 4932{
4520 if (expect_false (ev_is_active (w))) 4933 if (expect_false (ev_is_active (w)))
4521 return; 4934 return;
4522 4935
4523 EV_FREQUENT_CHECK; 4936 EV_FREQUENT_CHECK;
4524 4937
4525 ev_start (EV_A_ (W)w, ++cleanupcnt); 4938 ev_start (EV_A_ (W)w, ++cleanupcnt);
4526 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4939 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4527 cleanups [cleanupcnt - 1] = w; 4940 cleanups [cleanupcnt - 1] = w;
4528 4941
4529 /* cleanup watchers should never keep a refcount on the loop */ 4942 /* cleanup watchers should never keep a refcount on the loop */
4530 ev_unref (EV_A); 4943 ev_unref (EV_A);
4531 EV_FREQUENT_CHECK; 4944 EV_FREQUENT_CHECK;
4532} 4945}
4533 4946
4534void 4947void
4535ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4948ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4536{ 4949{
4537 clear_pending (EV_A_ (W)w); 4950 clear_pending (EV_A_ (W)w);
4538 if (expect_false (!ev_is_active (w))) 4951 if (expect_false (!ev_is_active (w)))
4539 return; 4952 return;
4540 4953
… …
4554} 4967}
4555#endif 4968#endif
4556 4969
4557#if EV_ASYNC_ENABLE 4970#if EV_ASYNC_ENABLE
4558void 4971void
4559ev_async_start (EV_P_ ev_async *w) EV_THROW 4972ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4560{ 4973{
4561 if (expect_false (ev_is_active (w))) 4974 if (expect_false (ev_is_active (w)))
4562 return; 4975 return;
4563 4976
4564 w->sent = 0; 4977 w->sent = 0;
… …
4566 evpipe_init (EV_A); 4979 evpipe_init (EV_A);
4567 4980
4568 EV_FREQUENT_CHECK; 4981 EV_FREQUENT_CHECK;
4569 4982
4570 ev_start (EV_A_ (W)w, ++asynccnt); 4983 ev_start (EV_A_ (W)w, ++asynccnt);
4571 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4984 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4572 asyncs [asynccnt - 1] = w; 4985 asyncs [asynccnt - 1] = w;
4573 4986
4574 EV_FREQUENT_CHECK; 4987 EV_FREQUENT_CHECK;
4575} 4988}
4576 4989
4577void 4990void
4578ev_async_stop (EV_P_ ev_async *w) EV_THROW 4991ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4579{ 4992{
4580 clear_pending (EV_A_ (W)w); 4993 clear_pending (EV_A_ (W)w);
4581 if (expect_false (!ev_is_active (w))) 4994 if (expect_false (!ev_is_active (w)))
4582 return; 4995 return;
4583 4996
… …
4594 5007
4595 EV_FREQUENT_CHECK; 5008 EV_FREQUENT_CHECK;
4596} 5009}
4597 5010
4598void 5011void
4599ev_async_send (EV_P_ ev_async *w) EV_THROW 5012ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4600{ 5013{
4601 w->sent = 1; 5014 w->sent = 1;
4602 evpipe_write (EV_A_ &async_pending); 5015 evpipe_write (EV_A_ &async_pending);
4603} 5016}
4604#endif 5017#endif
… …
4641 5054
4642 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5055 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4643} 5056}
4644 5057
4645void 5058void
4646ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5059ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4647{ 5060{
4648 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5061 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4649
4650 if (expect_false (!once))
4651 {
4652 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4653 return;
4654 }
4655 5062
4656 once->cb = cb; 5063 once->cb = cb;
4657 once->arg = arg; 5064 once->arg = arg;
4658 5065
4659 ev_init (&once->io, once_cb_io); 5066 ev_init (&once->io, once_cb_io);
… …
4672} 5079}
4673 5080
4674/*****************************************************************************/ 5081/*****************************************************************************/
4675 5082
4676#if EV_WALK_ENABLE 5083#if EV_WALK_ENABLE
4677void ecb_cold 5084ecb_cold
5085void
4678ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5086ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4679{ 5087{
4680 int i, j; 5088 int i, j;
4681 ev_watcher_list *wl, *wn; 5089 ev_watcher_list *wl, *wn;
4682 5090
4683 if (types & (EV_IO | EV_EMBED)) 5091 if (types & (EV_IO | EV_EMBED))

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