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Comparing libev/ev.c (file contents):
Revision 1.453 by root, Thu Feb 28 00:33:25 2013 UTC vs.
Revision 1.494 by root, Sun Jun 23 23:28:45 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
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 0x00010005
521 565
522#ifdef _WIN32 566#ifdef _WIN32
523 typedef signed char int8_t; 567 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
544 #endif 588 #endif
545#else 589#else
546 #include <inttypes.h> 590 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
549 #else 593 #else
550 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
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 }
… …
591 #define ECB_NO_SMP 1 670 #define ECB_NO_SMP 1
592#endif 671#endif
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)
675#endif
676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
596#endif 684#endif
597 685
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
600 #if __i386 || __i386__ 688 #if __i386 || __i386__
601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 690 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 691 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 692 #elif ECB_GCC_AMD64
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 696 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
698 #elif defined __ARM_ARCH_2__ \
699 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
700 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
701 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
702 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
703 || defined __ARM_ARCH_5TEJ__
704 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 705 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 706 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
707 || defined __ARM_ARCH_6T2__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 709 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 710 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__ 712 #elif __aarch64__
713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
714 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 717 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__ 718 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__ 720 #elif defined __mips__
721 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
722 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
624 #elif defined __alpha__ 724 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 725 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__ 726 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 727 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 728 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__ 729 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 730 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
731 #elif defined __m68k__
732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
733 #elif defined __m88k__
734 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
735 #elif defined __sh__
736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
631 #endif 737 #endif
632 #endif 738 #endif
633#endif 739#endif
634 740
635#ifndef ECB_MEMORY_FENCE 741#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7) 742 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */ 743 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 744 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
745 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
746 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
639 747
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 748 #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. 749 /* see comment below (stdatomic.h) about the C11 memory model. */
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 750 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */ 751 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
752 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
648 753
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 754 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #define ECB_MEMORY_FENCE __sync_synchronize () 755 #define ECB_MEMORY_FENCE __sync_synchronize ()
756 #elif _MSC_VER >= 1500 /* VC++ 2008 */
757 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
758 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
759 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
760 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
761 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 762 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 763 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 764 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 765 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 766 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
675 /* any fence other than seq_cst, which isn't very efficient for us. */ 786 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */ 787 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */ 788 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */ 789 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */ 790 /* all three of ecb's fences as a seq_cst fence */
791 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
792 /* for all __atomic_thread_fence's except seq_cst */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 793 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
681 #endif 794 #endif
682#endif 795#endif
683 796
684#ifndef ECB_MEMORY_FENCE 797#ifndef ECB_MEMORY_FENCE
… …
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 820 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif 821#endif
709 822
710/*****************************************************************************/ 823/*****************************************************************************/
711 824
712#if __cplusplus 825#if ECB_CPP
713 #define ecb_inline static inline 826 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5) 827#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__ 828 #define ecb_inline static __inline__
716#elif ECB_C99 829#elif ECB_C99
717 #define ecb_inline static inline 830 #define ecb_inline static inline
… …
731 844
732#define ECB_CONCAT_(a, b) a ## b 845#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 846#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a 847#define ECB_STRINGIFY_(a) # a
735#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 848#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
849#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
736 850
737#define ecb_function_ ecb_inline 851#define ecb_function_ ecb_inline
738 852
739#if ECB_GCC_VERSION(3,1) 853#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
740 #define ecb_attribute(attrlist) __attribute__(attrlist) 854 #define ecb_attribute(attrlist) __attribute__ (attrlist)
855#else
856 #define ecb_attribute(attrlist)
857#endif
858
859#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
741 #define ecb_is_constant(expr) __builtin_constant_p (expr) 860 #define ecb_is_constant(expr) __builtin_constant_p (expr)
861#else
862 /* possible C11 impl for integral types
863 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
864 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
865
866 #define ecb_is_constant(expr) 0
867#endif
868
869#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
742 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 870 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
871#else
872 #define ecb_expect(expr,value) (expr)
873#endif
874
875#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 876 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else 877#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) 878 #define ecb_prefetch(addr,rw,locality)
749#endif 879#endif
750 880
751/* no emulation for ecb_decltype */ 881/* no emulation for ecb_decltype */
752#if ECB_GCC_VERSION(4,5) 882#if ECB_CPP11
883 // older implementations might have problems with decltype(x)::type, work around it
884 template<class T> struct ecb_decltype_t { typedef T type; };
753 #define ecb_decltype(x) __decltype(x) 885 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
754#elif ECB_GCC_VERSION(3,0) 886#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
755 #define ecb_decltype(x) __typeof(x) 887 #define ecb_decltype(x) __typeof__ (x)
756#endif 888#endif
757 889
890#if _MSC_VER >= 1300
891 #define ecb_deprecated __declspec (deprecated)
892#else
893 #define ecb_deprecated ecb_attribute ((__deprecated__))
894#endif
895
896#if _MSC_VER >= 1500
897 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
898#elif ECB_GCC_VERSION(4,5)
899 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
900#else
901 #define ecb_deprecated_message(msg) ecb_deprecated
902#endif
903
904#if _MSC_VER >= 1400
905 #define ecb_noinline __declspec (noinline)
906#else
758#define ecb_noinline ecb_attribute ((__noinline__)) 907 #define ecb_noinline ecb_attribute ((__noinline__))
908#endif
909
759#define ecb_unused ecb_attribute ((__unused__)) 910#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__)) 911#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__)) 912#define ecb_pure ecb_attribute ((__pure__))
762 913
763#if ECB_C11 914#if ECB_C11 || __IBMC_NORETURN
915 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
764 #define ecb_noreturn _Noreturn 916 #define ecb_noreturn _Noreturn
917#elif ECB_CPP11
918 #define ecb_noreturn [[noreturn]]
919#elif _MSC_VER >= 1200
920 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
921 #define ecb_noreturn __declspec (noreturn)
765#else 922#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__)) 923 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif 924#endif
768 925
769#if ECB_GCC_VERSION(4,3) 926#if ECB_GCC_VERSION(4,3)
… …
784/* for compatibility to the rest of the world */ 941/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr) 942#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr) 943#define ecb_unlikely(expr) ecb_expect_false (expr)
787 944
788/* count trailing zero bits and count # of one bits */ 945/* count trailing zero bits and count # of one bits */
789#if ECB_GCC_VERSION(3,4) 946#if ECB_GCC_VERSION(3,4) \
947 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
948 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
949 && ECB_CLANG_BUILTIN(__builtin_popcount))
790 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 950 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 951 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 952 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x) 953 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x) 954 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x) 955 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */ 956 /* no popcountll */
797#else 957#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 958 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
799 ecb_function_ int 959 ecb_function_ ecb_const int
800 ecb_ctz32 (uint32_t x) 960 ecb_ctz32 (uint32_t x)
801 { 961 {
962#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
963 unsigned long r;
964 _BitScanForward (&r, x);
965 return (int)r;
966#else
802 int r = 0; 967 int r = 0;
803 968
804 x &= ~x + 1; /* this isolates the lowest bit */ 969 x &= ~x + 1; /* this isolates the lowest bit */
805 970
806#if ECB_branchless_on_i386 971#if ECB_branchless_on_i386
… …
816 if (x & 0xff00ff00) r += 8; 981 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16; 982 if (x & 0xffff0000) r += 16;
818#endif 983#endif
819 984
820 return r; 985 return r;
986#endif
821 } 987 }
822 988
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 989 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
824 ecb_function_ int 990 ecb_function_ ecb_const int
825 ecb_ctz64 (uint64_t x) 991 ecb_ctz64 (uint64_t x)
826 { 992 {
993#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanForward64 (&r, x);
996 return (int)r;
997#else
827 int shift = x & 0xffffffffU ? 0 : 32; 998 int shift = x & 0xffffffff ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift; 999 return ecb_ctz32 (x >> shift) + shift;
1000#endif
829 } 1001 }
830 1002
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1003 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
832 ecb_function_ int 1004 ecb_function_ ecb_const int
833 ecb_popcount32 (uint32_t x) 1005 ecb_popcount32 (uint32_t x)
834 { 1006 {
835 x -= (x >> 1) & 0x55555555; 1007 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1008 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f; 1009 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101; 1010 x *= 0x01010101;
839 1011
840 return x >> 24; 1012 return x >> 24;
841 } 1013 }
842 1014
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1015 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
844 ecb_function_ int ecb_ld32 (uint32_t x) 1016 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
845 { 1017 {
1018#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1019 unsigned long r;
1020 _BitScanReverse (&r, x);
1021 return (int)r;
1022#else
846 int r = 0; 1023 int r = 0;
847 1024
848 if (x >> 16) { x >>= 16; r += 16; } 1025 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; } 1026 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; } 1027 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; } 1028 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; } 1029 if (x >> 1) { r += 1; }
853 1030
854 return r; 1031 return r;
1032#endif
855 } 1033 }
856 1034
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1035 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
858 ecb_function_ int ecb_ld64 (uint64_t x) 1036 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
859 { 1037 {
1038#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1039 unsigned long r;
1040 _BitScanReverse64 (&r, x);
1041 return (int)r;
1042#else
860 int r = 0; 1043 int r = 0;
861 1044
862 if (x >> 32) { x >>= 32; r += 32; } 1045 if (x >> 32) { x >>= 32; r += 32; }
863 1046
864 return r + ecb_ld32 (x); 1047 return r + ecb_ld32 (x);
1048#endif
865 } 1049 }
866#endif 1050#endif
867 1051
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1052ecb_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)); } 1053ecb_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; 1054ecb_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)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872 1056
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1057ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1058ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
875{ 1059{
876 return ( (x * 0x0802U & 0x22110U) 1060 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1061 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878} 1062}
879 1063
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1064ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1065ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
882{ 1066{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1067 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1068 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1069 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8); 1070 x = ( x >> 8 ) | ( x << 8);
887 1071
888 return x; 1072 return x;
889} 1073}
890 1074
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1075ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1076ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
893{ 1077{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1078 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1079 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1080 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1081 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
900 return x; 1084 return x;
901} 1085}
902 1086
903/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1087/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */ 1088/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1089ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
906ecb_function_ int 1090ecb_function_ ecb_const int
907ecb_popcount64 (uint64_t x) 1091ecb_popcount64 (uint64_t x)
908{ 1092{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1093 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910} 1094}
911 1095
912ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1096ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
913ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1097ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
914ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
915ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
916ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
917ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
918ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
919ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
920 1104
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1105ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1106ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1107ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1108ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1109ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1110ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1111ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1112ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
929 1113
930#if ECB_GCC_VERSION(4,3) 1114#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1115 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1116 #define ecb_bswap16(x) __builtin_bswap16 (x)
1117 #else
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1118 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1119 #endif
932 #define ecb_bswap32(x) __builtin_bswap32 (x) 1120 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #define ecb_bswap64(x) __builtin_bswap64 (x) 1121 #define ecb_bswap64(x) __builtin_bswap64 (x)
1122#elif _MSC_VER
1123 #include <stdlib.h>
1124 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1125 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1126 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
934#else 1127#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1128 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
936 ecb_function_ uint16_t 1129 ecb_function_ ecb_const uint16_t
937 ecb_bswap16 (uint16_t x) 1130 ecb_bswap16 (uint16_t x)
938 { 1131 {
939 return ecb_rotl16 (x, 8); 1132 return ecb_rotl16 (x, 8);
940 } 1133 }
941 1134
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1135 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
943 ecb_function_ uint32_t 1136 ecb_function_ ecb_const uint32_t
944 ecb_bswap32 (uint32_t x) 1137 ecb_bswap32 (uint32_t x)
945 { 1138 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1139 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 } 1140 }
948 1141
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1142 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
950 ecb_function_ uint64_t 1143 ecb_function_ ecb_const uint64_t
951 ecb_bswap64 (uint64_t x) 1144 ecb_bswap64 (uint64_t x)
952 { 1145 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1146 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 } 1147 }
955#endif 1148#endif
956 1149
957#if ECB_GCC_VERSION(4,5) 1150#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
958 #define ecb_unreachable() __builtin_unreachable () 1151 #define ecb_unreachable() __builtin_unreachable ()
959#else 1152#else
960 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1153 /* this seems to work fine, but gcc always emits a warning for it :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1154 ecb_inline ecb_noreturn void ecb_unreachable (void);
962 ecb_inline void ecb_unreachable (void) { } 1155 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
963#endif 1156#endif
964 1157
965/* try to tell the compiler that some condition is definitely true */ 1158/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1159#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967 1160
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
969ecb_inline unsigned char 1162ecb_inline ecb_const uint32_t
970ecb_byteorder_helper (void) 1163ecb_byteorder_helper (void)
971{ 1164{
972 /* the union code still generates code under pressure in gcc, */ 1165 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */ 1166 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */ 1167 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */ 1168 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */ 1169 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */ 1170 /* 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__ 1171#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1172 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1173 #define ECB_LITTLE_ENDIAN 1
981 return 0x44; 1174 return 0x44332211;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1175#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1176 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1177 #define ECB_BIG_ENDIAN 1
983 return 0x11; 1178 return 0x11223344;
984#else 1179#else
985 union 1180 union
986 { 1181 {
1182 uint8_t c[4];
987 uint32_t i; 1183 uint32_t u;
988 uint8_t c;
989 } u = { 0x11223344 }; 1184 } u = { 0x11, 0x22, 0x33, 0x44 };
990 return u.c; 1185 return u.u;
991#endif 1186#endif
992} 1187}
993 1188
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1189ecb_inline ecb_const ecb_bool ecb_big_endian (void);
995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1190ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_little_endian (void);
997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1192ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
998 1193
999#if ECB_GCC_VERSION(3,0) || ECB_C99 1194#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1195 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1001#else 1196#else
1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1197 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif 1198#endif
1004 1199
1005#if __cplusplus 1200#if ECB_CPP
1006 template<typename T> 1201 template<typename T>
1007 static inline T ecb_div_rd (T val, T div) 1202 static inline T ecb_div_rd (T val, T div)
1008 { 1203 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1204 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 } 1205 }
… …
1027 } 1222 }
1028#else 1223#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1224 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif 1225#endif
1031 1226
1227ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1228ecb_function_ ecb_const uint32_t
1229ecb_binary16_to_binary32 (uint32_t x)
1230{
1231 unsigned int s = (x & 0x8000) << (31 - 15);
1232 int e = (x >> 10) & 0x001f;
1233 unsigned int m = x & 0x03ff;
1234
1235 if (ecb_expect_false (e == 31))
1236 /* infinity or NaN */
1237 e = 255 - (127 - 15);
1238 else if (ecb_expect_false (!e))
1239 {
1240 if (ecb_expect_true (!m))
1241 /* zero, handled by code below by forcing e to 0 */
1242 e = 0 - (127 - 15);
1243 else
1244 {
1245 /* subnormal, renormalise */
1246 unsigned int s = 10 - ecb_ld32 (m);
1247
1248 m = (m << s) & 0x3ff; /* mask implicit bit */
1249 e -= s - 1;
1250 }
1251 }
1252
1253 /* e and m now are normalised, or zero, (or inf or nan) */
1254 e += 127 - 15;
1255
1256 return s | (e << 23) | (m << (23 - 10));
1257}
1258
1259ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1260ecb_function_ ecb_const uint16_t
1261ecb_binary32_to_binary16 (uint32_t x)
1262{
1263 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1264 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1265 unsigned int m = x & 0x007fffff;
1266
1267 x &= 0x7fffffff;
1268
1269 /* if it's within range of binary16 normals, use fast path */
1270 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1271 {
1272 /* mantissa round-to-even */
1273 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1274
1275 /* handle overflow */
1276 if (ecb_expect_false (m >= 0x00800000))
1277 {
1278 m >>= 1;
1279 e += 1;
1280 }
1281
1282 return s | (e << 10) | (m >> (23 - 10));
1283 }
1284
1285 /* handle large numbers and infinity */
1286 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1287 return s | 0x7c00;
1288
1289 /* handle zero, subnormals and small numbers */
1290 if (ecb_expect_true (x < 0x38800000))
1291 {
1292 /* zero */
1293 if (ecb_expect_true (!x))
1294 return s;
1295
1296 /* handle subnormals */
1297
1298 /* too small, will be zero */
1299 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1300 return s;
1301
1302 m |= 0x00800000; /* make implicit bit explicit */
1303
1304 /* very tricky - we need to round to the nearest e (+10) bit value */
1305 {
1306 unsigned int bits = 14 - e;
1307 unsigned int half = (1 << (bits - 1)) - 1;
1308 unsigned int even = (m >> bits) & 1;
1309
1310 /* if this overflows, we will end up with a normalised number */
1311 m = (m + half + even) >> bits;
1312 }
1313
1314 return s | m;
1315 }
1316
1317 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1318 m >>= 13;
1319
1320 return s | 0x7c00 | m | !m;
1321}
1322
1032/*******************************************************************************/ 1323/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1324/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034 1325
1035/* basically, everything uses "ieee pure-endian" floating point numbers */ 1326/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1327/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \ 1328#if 0 \
1038 || __i386 || __i386__ \ 1329 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1330 || ECB_GCC_AMD64 \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1331 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \ 1332 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \ 1333 || defined __mips__ \
1044 || defined __alpha__ \ 1334 || defined __alpha__ \
1045 || defined __hppa__ \ 1335 || defined __hppa__ \
1046 || defined __ia64__ \ 1336 || defined __ia64__ \
1337 || defined __m68k__ \
1338 || defined __m88k__ \
1339 || defined __sh__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1340 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1341 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1342 || defined __aarch64__
1048 #define ECB_STDFP 1 1343 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */ 1344 #include <string.h> /* for memcpy */
1050#else 1345#else
1051 #define ECB_STDFP 0 1346 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif 1347#endif
1054 1348
1055#ifndef ECB_NO_LIBM 1349#ifndef ECB_NO_LIBM
1056 1350
1351 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1352
1353 /* only the oldest of old doesn't have this one. solaris. */
1354 #ifdef INFINITY
1355 #define ECB_INFINITY INFINITY
1356 #else
1357 #define ECB_INFINITY HUGE_VAL
1358 #endif
1359
1360 #ifdef NAN
1361 #define ECB_NAN NAN
1362 #else
1363 #define ECB_NAN ECB_INFINITY
1364 #endif
1365
1366 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1367 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1368 #define ecb_frexpf(x,e) frexpf ((x), (e))
1369 #else
1370 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1371 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1372 #endif
1373
1057 /* convert a float to ieee single/binary32 */ 1374 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1375 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1059 ecb_function_ uint32_t 1376 ecb_function_ ecb_const uint32_t
1060 ecb_float_to_binary32 (float x) 1377 ecb_float_to_binary32 (float x)
1061 { 1378 {
1062 uint32_t r; 1379 uint32_t r;
1063 1380
1064 #if ECB_STDFP 1381 #if ECB_STDFP
… …
1071 if (x == 0e0f ) return 0x00000000U; 1388 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1389 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1390 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU; 1391 if (x != x ) return 0x7fbfffffU;
1075 1392
1076 m = frexpf (x, &e) * 0x1000000U; 1393 m = ecb_frexpf (x, &e) * 0x1000000U;
1077 1394
1078 r = m & 0x80000000U; 1395 r = m & 0x80000000U;
1079 1396
1080 if (r) 1397 if (r)
1081 m = -m; 1398 m = -m;
… …
1093 1410
1094 return r; 1411 return r;
1095 } 1412 }
1096 1413
1097 /* converts an ieee single/binary32 to a float */ 1414 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1415 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1099 ecb_function_ float 1416 ecb_function_ ecb_const float
1100 ecb_binary32_to_float (uint32_t x) 1417 ecb_binary32_to_float (uint32_t x)
1101 { 1418 {
1102 float r; 1419 float r;
1103 1420
1104 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1114 x |= 0x800000U; 1431 x |= 0x800000U;
1115 else 1432 else
1116 e = 1; 1433 e = 1;
1117 1434
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1435 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1436 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1120 1437
1121 r = neg ? -r : r; 1438 r = neg ? -r : r;
1122 #endif 1439 #endif
1123 1440
1124 return r; 1441 return r;
1125 } 1442 }
1126 1443
1127 /* convert a double to ieee double/binary64 */ 1444 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1445 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1129 ecb_function_ uint64_t 1446 ecb_function_ ecb_const uint64_t
1130 ecb_double_to_binary64 (double x) 1447 ecb_double_to_binary64 (double x)
1131 { 1448 {
1132 uint64_t r; 1449 uint64_t r;
1133 1450
1134 #if ECB_STDFP 1451 #if ECB_STDFP
… …
1163 1480
1164 return r; 1481 return r;
1165 } 1482 }
1166 1483
1167 /* converts an ieee double/binary64 to a double */ 1484 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1485 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1169 ecb_function_ double 1486 ecb_function_ ecb_const double
1170 ecb_binary64_to_double (uint64_t x) 1487 ecb_binary64_to_double (uint64_t x)
1171 { 1488 {
1172 double r; 1489 double r;
1173 1490
1174 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1190 1507
1191 r = neg ? -r : r; 1508 r = neg ? -r : r;
1192 #endif 1509 #endif
1193 1510
1194 return r; 1511 return r;
1512 }
1513
1514 /* convert a float to ieee half/binary16 */
1515 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1516 ecb_function_ ecb_const uint16_t
1517 ecb_float_to_binary16 (float x)
1518 {
1519 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1520 }
1521
1522 /* convert an ieee half/binary16 to float */
1523 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1524 ecb_function_ ecb_const float
1525 ecb_binary16_to_float (uint16_t x)
1526 {
1527 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1195 } 1528 }
1196 1529
1197#endif 1530#endif
1198 1531
1199#endif 1532#endif
… …
1224#define inline_size ecb_inline 1557#define inline_size ecb_inline
1225 1558
1226#if EV_FEATURE_CODE 1559#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline 1560# define inline_speed ecb_inline
1228#else 1561#else
1229# define inline_speed static noinline 1562# define inline_speed noinline static
1230#endif 1563#endif
1231 1564
1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1565#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1233 1566
1234#if EV_MINPRI == EV_MAXPRI 1567#if EV_MINPRI == EV_MAXPRI
1235# define ABSPRI(w) (((W)w), 0) 1568# define ABSPRI(w) (((W)w), 0)
1236#else 1569#else
1237# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1570# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1238#endif 1571#endif
1239 1572
1240#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1573#define EMPTY /* required for microsofts broken pseudo-c compiler */
1241#define EMPTY2(a,b) /* used to suppress some warnings */
1242 1574
1243typedef ev_watcher *W; 1575typedef ev_watcher *W;
1244typedef ev_watcher_list *WL; 1576typedef ev_watcher_list *WL;
1245typedef ev_watcher_time *WT; 1577typedef ev_watcher_time *WT;
1246 1578
… …
1271# include "ev_win32.c" 1603# include "ev_win32.c"
1272#endif 1604#endif
1273 1605
1274/*****************************************************************************/ 1606/*****************************************************************************/
1275 1607
1608#if EV_USE_LINUXAIO
1609# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1610#endif
1611
1276/* define a suitable floor function (only used by periodics atm) */ 1612/* define a suitable floor function (only used by periodics atm) */
1277 1613
1278#if EV_USE_FLOOR 1614#if EV_USE_FLOOR
1279# include <math.h> 1615# include <math.h>
1280# define ev_floor(v) floor (v) 1616# define ev_floor(v) floor (v)
1281#else 1617#else
1282 1618
1283#include <float.h> 1619#include <float.h>
1284 1620
1285/* a floor() replacement function, should be independent of ev_tstamp type */ 1621/* a floor() replacement function, should be independent of ev_tstamp type */
1622noinline
1286static ev_tstamp noinline 1623static ev_tstamp
1287ev_floor (ev_tstamp v) 1624ev_floor (ev_tstamp v)
1288{ 1625{
1289 /* the choice of shift factor is not terribly important */ 1626 /* the choice of shift factor is not terribly important */
1290#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1627#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1323 1660
1324#ifdef __linux 1661#ifdef __linux
1325# include <sys/utsname.h> 1662# include <sys/utsname.h>
1326#endif 1663#endif
1327 1664
1328static unsigned int noinline ecb_cold 1665noinline ecb_cold
1666static unsigned int
1329ev_linux_version (void) 1667ev_linux_version (void)
1330{ 1668{
1331#ifdef __linux 1669#ifdef __linux
1332 unsigned int v = 0; 1670 unsigned int v = 0;
1333 struct utsname buf; 1671 struct utsname buf;
… …
1362} 1700}
1363 1701
1364/*****************************************************************************/ 1702/*****************************************************************************/
1365 1703
1366#if EV_AVOID_STDIO 1704#if EV_AVOID_STDIO
1367static void noinline ecb_cold 1705noinline ecb_cold
1706static void
1368ev_printerr (const char *msg) 1707ev_printerr (const char *msg)
1369{ 1708{
1370 write (STDERR_FILENO, msg, strlen (msg)); 1709 write (STDERR_FILENO, msg, strlen (msg));
1371} 1710}
1372#endif 1711#endif
1373 1712
1374static void (*syserr_cb)(const char *msg) EV_THROW; 1713static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1375 1714
1376void ecb_cold 1715ecb_cold
1716void
1377ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1717ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1378{ 1718{
1379 syserr_cb = cb; 1719 syserr_cb = cb;
1380} 1720}
1381 1721
1382static void noinline ecb_cold 1722noinline ecb_cold
1723static void
1383ev_syserr (const char *msg) 1724ev_syserr (const char *msg)
1384{ 1725{
1385 if (!msg) 1726 if (!msg)
1386 msg = "(libev) system error"; 1727 msg = "(libev) system error";
1387 1728
… …
1400 abort (); 1741 abort ();
1401 } 1742 }
1402} 1743}
1403 1744
1404static void * 1745static void *
1405ev_realloc_emul (void *ptr, long size) EV_THROW 1746ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1406{ 1747{
1407 /* some systems, notably openbsd and darwin, fail to properly 1748 /* some systems, notably openbsd and darwin, fail to properly
1408 * implement realloc (x, 0) (as required by both ansi c-89 and 1749 * implement realloc (x, 0) (as required by both ansi c-89 and
1409 * the single unix specification, so work around them here. 1750 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it, 1751 * recently, also (at least) fedora and debian started breaking it,
… …
1416 1757
1417 free (ptr); 1758 free (ptr);
1418 return 0; 1759 return 0;
1419} 1760}
1420 1761
1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1762static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1422 1763
1423void ecb_cold 1764ecb_cold
1765void
1424ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1766ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1425{ 1767{
1426 alloc = cb; 1768 alloc = cb;
1427} 1769}
1428 1770
1429inline_speed void * 1771inline_speed void *
… …
1456typedef struct 1798typedef struct
1457{ 1799{
1458 WL head; 1800 WL head;
1459 unsigned char events; /* the events watched for */ 1801 unsigned char events; /* the events watched for */
1460 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1802 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1461 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1803 unsigned char emask; /* some backends store the actual kernel mask in here */
1462 unsigned char unused; 1804 unsigned char unused;
1463#if EV_USE_EPOLL 1805#if EV_USE_EPOLL
1464 unsigned int egen; /* generation counter to counter epoll bugs */ 1806 unsigned int egen; /* generation counter to counter epoll bugs */
1465#endif 1807#endif
1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1546 1888
1547/*****************************************************************************/ 1889/*****************************************************************************/
1548 1890
1549#ifndef EV_HAVE_EV_TIME 1891#ifndef EV_HAVE_EV_TIME
1550ev_tstamp 1892ev_tstamp
1551ev_time (void) EV_THROW 1893ev_time (void) EV_NOEXCEPT
1552{ 1894{
1553#if EV_USE_REALTIME 1895#if EV_USE_REALTIME
1554 if (expect_true (have_realtime)) 1896 if (expect_true (have_realtime))
1555 { 1897 {
1556 struct timespec ts; 1898 struct timespec ts;
… …
1580 return ev_time (); 1922 return ev_time ();
1581} 1923}
1582 1924
1583#if EV_MULTIPLICITY 1925#if EV_MULTIPLICITY
1584ev_tstamp 1926ev_tstamp
1585ev_now (EV_P) EV_THROW 1927ev_now (EV_P) EV_NOEXCEPT
1586{ 1928{
1587 return ev_rt_now; 1929 return ev_rt_now;
1588} 1930}
1589#endif 1931#endif
1590 1932
1591void 1933void
1592ev_sleep (ev_tstamp delay) EV_THROW 1934ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1593{ 1935{
1594 if (delay > 0.) 1936 if (delay > 0.)
1595 { 1937 {
1596#if EV_USE_NANOSLEEP 1938#if EV_USE_NANOSLEEP
1597 struct timespec ts; 1939 struct timespec ts;
1598 1940
1599 EV_TS_SET (ts, delay); 1941 EV_TS_SET (ts, delay);
1600 nanosleep (&ts, 0); 1942 nanosleep (&ts, 0);
1601#elif defined _WIN32 1943#elif defined _WIN32
1944 /* maybe this should round up, as ms is very low resolution */
1945 /* compared to select (µs) or nanosleep (ns) */
1602 Sleep ((unsigned long)(delay * 1e3)); 1946 Sleep ((unsigned long)(delay * 1e3));
1603#else 1947#else
1604 struct timeval tv; 1948 struct timeval tv;
1605 1949
1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1950 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1637 } 1981 }
1638 1982
1639 return ncur; 1983 return ncur;
1640} 1984}
1641 1985
1642static void * noinline ecb_cold 1986noinline ecb_cold
1987static void *
1643array_realloc (int elem, void *base, int *cur, int cnt) 1988array_realloc (int elem, void *base, int *cur, int cnt)
1644{ 1989{
1645 *cur = array_nextsize (elem, *cur, cnt); 1990 *cur = array_nextsize (elem, *cur, cnt);
1646 return ev_realloc (base, elem * *cur); 1991 return ev_realloc (base, elem * *cur);
1647} 1992}
1648 1993
1994#define array_needsize_noinit(base,count)
1995
1649#define array_init_zero(base,count) \ 1996#define array_needsize_zerofill(base,count) \
1650 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1997 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1651 1998
1652#define array_needsize(type,base,cur,cnt,init) \ 1999#define array_needsize(type,base,cur,cnt,init) \
1653 if (expect_false ((cnt) > (cur))) \ 2000 if (expect_false ((cnt) > (cur))) \
1654 { \ 2001 { \
1655 int ecb_unused ocur_ = (cur); \ 2002 ecb_unused int ocur_ = (cur); \
1656 (base) = (type *)array_realloc \ 2003 (base) = (type *)array_realloc \
1657 (sizeof (type), (base), &(cur), (cnt)); \ 2004 (sizeof (type), (base), &(cur), (cnt)); \
1658 init ((base) + (ocur_), (cur) - ocur_); \ 2005 init ((base) + (ocur_), (cur) - ocur_); \
1659 } 2006 }
1660 2007
… …
1672 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2019 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1673 2020
1674/*****************************************************************************/ 2021/*****************************************************************************/
1675 2022
1676/* dummy callback for pending events */ 2023/* dummy callback for pending events */
1677static void noinline 2024noinline
2025static void
1678pendingcb (EV_P_ ev_prepare *w, int revents) 2026pendingcb (EV_P_ ev_prepare *w, int revents)
1679{ 2027{
1680} 2028}
1681 2029
1682void noinline 2030noinline
2031void
1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2032ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1684{ 2033{
1685 W w_ = (W)w; 2034 W w_ = (W)w;
1686 int pri = ABSPRI (w_); 2035 int pri = ABSPRI (w_);
1687 2036
1688 if (expect_false (w_->pending)) 2037 if (expect_false (w_->pending))
1689 pendings [pri][w_->pending - 1].events |= revents; 2038 pendings [pri][w_->pending - 1].events |= revents;
1690 else 2039 else
1691 { 2040 {
1692 w_->pending = ++pendingcnt [pri]; 2041 w_->pending = ++pendingcnt [pri];
1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1694 pendings [pri][w_->pending - 1].w = w_; 2043 pendings [pri][w_->pending - 1].w = w_;
1695 pendings [pri][w_->pending - 1].events = revents; 2044 pendings [pri][w_->pending - 1].events = revents;
1696 } 2045 }
1697 2046
1698 pendingpri = NUMPRI - 1; 2047 pendingpri = NUMPRI - 1;
1699} 2048}
1700 2049
1701inline_speed void 2050inline_speed void
1702feed_reverse (EV_P_ W w) 2051feed_reverse (EV_P_ W w)
1703{ 2052{
1704 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2053 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1705 rfeeds [rfeedcnt++] = w; 2054 rfeeds [rfeedcnt++] = w;
1706} 2055}
1707 2056
1708inline_size void 2057inline_size void
1709feed_reverse_done (EV_P_ int revents) 2058feed_reverse_done (EV_P_ int revents)
… …
1749 if (expect_true (!anfd->reify)) 2098 if (expect_true (!anfd->reify))
1750 fd_event_nocheck (EV_A_ fd, revents); 2099 fd_event_nocheck (EV_A_ fd, revents);
1751} 2100}
1752 2101
1753void 2102void
1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2103ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1755{ 2104{
1756 if (fd >= 0 && fd < anfdmax) 2105 if (fd >= 0 && fd < anfdmax)
1757 fd_event_nocheck (EV_A_ fd, revents); 2106 fd_event_nocheck (EV_A_ fd, revents);
1758} 2107}
1759 2108
… …
1817 2166
1818 fdchangecnt = 0; 2167 fdchangecnt = 0;
1819} 2168}
1820 2169
1821/* something about the given fd changed */ 2170/* something about the given fd changed */
1822inline_size void 2171inline_size
2172void
1823fd_change (EV_P_ int fd, int flags) 2173fd_change (EV_P_ int fd, int flags)
1824{ 2174{
1825 unsigned char reify = anfds [fd].reify; 2175 unsigned char reify = anfds [fd].reify;
1826 anfds [fd].reify |= flags; 2176 anfds [fd].reify |= flags;
1827 2177
1828 if (expect_true (!reify)) 2178 if (expect_true (!reify))
1829 { 2179 {
1830 ++fdchangecnt; 2180 ++fdchangecnt;
1831 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2181 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1832 fdchanges [fdchangecnt - 1] = fd; 2182 fdchanges [fdchangecnt - 1] = fd;
1833 } 2183 }
1834} 2184}
1835 2185
1836/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2186/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1837inline_speed void ecb_cold 2187inline_speed ecb_cold void
1838fd_kill (EV_P_ int fd) 2188fd_kill (EV_P_ int fd)
1839{ 2189{
1840 ev_io *w; 2190 ev_io *w;
1841 2191
1842 while ((w = (ev_io *)anfds [fd].head)) 2192 while ((w = (ev_io *)anfds [fd].head))
… …
1845 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2195 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1846 } 2196 }
1847} 2197}
1848 2198
1849/* check whether the given fd is actually valid, for error recovery */ 2199/* check whether the given fd is actually valid, for error recovery */
1850inline_size int ecb_cold 2200inline_size ecb_cold int
1851fd_valid (int fd) 2201fd_valid (int fd)
1852{ 2202{
1853#ifdef _WIN32 2203#ifdef _WIN32
1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2204 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1855#else 2205#else
1856 return fcntl (fd, F_GETFD) != -1; 2206 return fcntl (fd, F_GETFD) != -1;
1857#endif 2207#endif
1858} 2208}
1859 2209
1860/* called on EBADF to verify fds */ 2210/* called on EBADF to verify fds */
1861static void noinline ecb_cold 2211noinline ecb_cold
2212static void
1862fd_ebadf (EV_P) 2213fd_ebadf (EV_P)
1863{ 2214{
1864 int fd; 2215 int fd;
1865 2216
1866 for (fd = 0; fd < anfdmax; ++fd) 2217 for (fd = 0; fd < anfdmax; ++fd)
… …
1868 if (!fd_valid (fd) && errno == EBADF) 2219 if (!fd_valid (fd) && errno == EBADF)
1869 fd_kill (EV_A_ fd); 2220 fd_kill (EV_A_ fd);
1870} 2221}
1871 2222
1872/* called on ENOMEM in select/poll to kill some fds and retry */ 2223/* called on ENOMEM in select/poll to kill some fds and retry */
1873static void noinline ecb_cold 2224noinline ecb_cold
2225static void
1874fd_enomem (EV_P) 2226fd_enomem (EV_P)
1875{ 2227{
1876 int fd; 2228 int fd;
1877 2229
1878 for (fd = anfdmax; fd--; ) 2230 for (fd = anfdmax; fd--; )
… …
1882 break; 2234 break;
1883 } 2235 }
1884} 2236}
1885 2237
1886/* usually called after fork if backend needs to re-arm all fds from scratch */ 2238/* usually called after fork if backend needs to re-arm all fds from scratch */
1887static void noinline 2239noinline
2240static void
1888fd_rearm_all (EV_P) 2241fd_rearm_all (EV_P)
1889{ 2242{
1890 int fd; 2243 int fd;
1891 2244
1892 for (fd = 0; fd < anfdmax; ++fd) 2245 for (fd = 0; fd < anfdmax; ++fd)
… …
2073 2426
2074/*****************************************************************************/ 2427/*****************************************************************************/
2075 2428
2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2077 2430
2078static void noinline ecb_cold 2431noinline ecb_cold
2432static void
2079evpipe_init (EV_P) 2433evpipe_init (EV_P)
2080{ 2434{
2081 if (!ev_is_active (&pipe_w)) 2435 if (!ev_is_active (&pipe_w))
2082 { 2436 {
2083 int fds [2]; 2437 int fds [2];
… …
2094 while (pipe (fds)) 2448 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe"); 2449 ev_syserr ("(libev) error creating signal/async pipe");
2096 2450
2097 fd_intern (fds [0]); 2451 fd_intern (fds [0]);
2098 } 2452 }
2099
2100 fd_intern (fds [1]);
2101 2453
2102 evpipe [0] = fds [0]; 2454 evpipe [0] = fds [0];
2103 2455
2104 if (evpipe [1] < 0) 2456 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */ 2457 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2112 2464
2113 dup2 (fds [1], evpipe [1]); 2465 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]); 2466 close (fds [1]);
2115 } 2467 }
2116 2468
2469 fd_intern (evpipe [1]);
2470
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2471 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w); 2472 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */ 2473 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 } 2474 }
2121} 2475}
… …
2154#endif 2508#endif
2155 { 2509 {
2156#ifdef _WIN32 2510#ifdef _WIN32
2157 WSABUF buf; 2511 WSABUF buf;
2158 DWORD sent; 2512 DWORD sent;
2159 buf.buf = &buf; 2513 buf.buf = (char *)&buf;
2160 buf.len = 1; 2514 buf.len = 1;
2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2515 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2162#else 2516#else
2163 write (evpipe [1], &(evpipe [1]), 1); 2517 write (evpipe [1], &(evpipe [1]), 1);
2164#endif 2518#endif
… …
2236} 2590}
2237 2591
2238/*****************************************************************************/ 2592/*****************************************************************************/
2239 2593
2240void 2594void
2241ev_feed_signal (int signum) EV_THROW 2595ev_feed_signal (int signum) EV_NOEXCEPT
2242{ 2596{
2243#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
2244 EV_P; 2598 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE; 2599 ECB_MEMORY_FENCE_ACQUIRE;
2246 EV_A = signals [signum - 1].loop; 2600 EV_A = signals [signum - 1].loop;
… …
2261#endif 2615#endif
2262 2616
2263 ev_feed_signal (signum); 2617 ev_feed_signal (signum);
2264} 2618}
2265 2619
2266void noinline 2620noinline
2621void
2267ev_feed_signal_event (EV_P_ int signum) EV_THROW 2622ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2268{ 2623{
2269 WL w; 2624 WL w;
2270 2625
2271 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2626 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2272 return; 2627 return;
… …
2381# include "ev_kqueue.c" 2736# include "ev_kqueue.c"
2382#endif 2737#endif
2383#if EV_USE_EPOLL 2738#if EV_USE_EPOLL
2384# include "ev_epoll.c" 2739# include "ev_epoll.c"
2385#endif 2740#endif
2741#if EV_USE_LINUXAIO
2742# include "ev_linuxaio.c"
2743#endif
2386#if EV_USE_POLL 2744#if EV_USE_POLL
2387# include "ev_poll.c" 2745# include "ev_poll.c"
2388#endif 2746#endif
2389#if EV_USE_SELECT 2747#if EV_USE_SELECT
2390# include "ev_select.c" 2748# include "ev_select.c"
2391#endif 2749#endif
2392 2750
2393int ecb_cold 2751ecb_cold int
2394ev_version_major (void) EV_THROW 2752ev_version_major (void) EV_NOEXCEPT
2395{ 2753{
2396 return EV_VERSION_MAJOR; 2754 return EV_VERSION_MAJOR;
2397} 2755}
2398 2756
2399int ecb_cold 2757ecb_cold int
2400ev_version_minor (void) EV_THROW 2758ev_version_minor (void) EV_NOEXCEPT
2401{ 2759{
2402 return EV_VERSION_MINOR; 2760 return EV_VERSION_MINOR;
2403} 2761}
2404 2762
2405/* return true if we are running with elevated privileges and should ignore env variables */ 2763/* return true if we are running with elevated privileges and should ignore env variables */
2406int inline_size ecb_cold 2764inline_size ecb_cold int
2407enable_secure (void) 2765enable_secure (void)
2408{ 2766{
2409#ifdef _WIN32 2767#ifdef _WIN32
2410 return 0; 2768 return 0;
2411#else 2769#else
2412 return getuid () != geteuid () 2770 return getuid () != geteuid ()
2413 || getgid () != getegid (); 2771 || getgid () != getegid ();
2414#endif 2772#endif
2415} 2773}
2416 2774
2417unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2418ev_supported_backends (void) EV_THROW 2777ev_supported_backends (void) EV_NOEXCEPT
2419{ 2778{
2420 unsigned int flags = 0; 2779 unsigned int flags = 0;
2421 2780
2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2781 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2782 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2424 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2783 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2784 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2425 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2785 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2426 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2786 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2427 2787
2428 return flags; 2788 return flags;
2429} 2789}
2430 2790
2431unsigned int ecb_cold 2791ecb_cold
2792unsigned int
2432ev_recommended_backends (void) EV_THROW 2793ev_recommended_backends (void) EV_NOEXCEPT
2433{ 2794{
2434 unsigned int flags = ev_supported_backends (); 2795 unsigned int flags = ev_supported_backends ();
2435 2796
2436#ifndef __NetBSD__ 2797#ifndef __NetBSD__
2437 /* kqueue is borked on everything but netbsd apparently */ 2798 /* kqueue is borked on everything but netbsd apparently */
… …
2445#endif 2806#endif
2446#ifdef __FreeBSD__ 2807#ifdef __FreeBSD__
2447 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2808 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2448#endif 2809#endif
2449 2810
2811 /* TODO: linuxaio is very experimental */
2812#if !EV_RECOMMEND_LINUXAIO
2813 flags &= ~EVBACKEND_LINUXAIO;
2814#endif
2815
2450 return flags; 2816 return flags;
2451} 2817}
2452 2818
2453unsigned int ecb_cold 2819ecb_cold
2820unsigned int
2454ev_embeddable_backends (void) EV_THROW 2821ev_embeddable_backends (void) EV_NOEXCEPT
2455{ 2822{
2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2823 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2457 2824
2458 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2825 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2459 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2826 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2461 2828
2462 return flags; 2829 return flags;
2463} 2830}
2464 2831
2465unsigned int 2832unsigned int
2466ev_backend (EV_P) EV_THROW 2833ev_backend (EV_P) EV_NOEXCEPT
2467{ 2834{
2468 return backend; 2835 return backend;
2469} 2836}
2470 2837
2471#if EV_FEATURE_API 2838#if EV_FEATURE_API
2472unsigned int 2839unsigned int
2473ev_iteration (EV_P) EV_THROW 2840ev_iteration (EV_P) EV_NOEXCEPT
2474{ 2841{
2475 return loop_count; 2842 return loop_count;
2476} 2843}
2477 2844
2478unsigned int 2845unsigned int
2479ev_depth (EV_P) EV_THROW 2846ev_depth (EV_P) EV_NOEXCEPT
2480{ 2847{
2481 return loop_depth; 2848 return loop_depth;
2482} 2849}
2483 2850
2484void 2851void
2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2852ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2486{ 2853{
2487 io_blocktime = interval; 2854 io_blocktime = interval;
2488} 2855}
2489 2856
2490void 2857void
2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2858ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2492{ 2859{
2493 timeout_blocktime = interval; 2860 timeout_blocktime = interval;
2494} 2861}
2495 2862
2496void 2863void
2497ev_set_userdata (EV_P_ void *data) EV_THROW 2864ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2498{ 2865{
2499 userdata = data; 2866 userdata = data;
2500} 2867}
2501 2868
2502void * 2869void *
2503ev_userdata (EV_P) EV_THROW 2870ev_userdata (EV_P) EV_NOEXCEPT
2504{ 2871{
2505 return userdata; 2872 return userdata;
2506} 2873}
2507 2874
2508void 2875void
2509ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2876ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2510{ 2877{
2511 invoke_cb = invoke_pending_cb; 2878 invoke_cb = invoke_pending_cb;
2512} 2879}
2513 2880
2514void 2881void
2515ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2882ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2516{ 2883{
2517 release_cb = release; 2884 release_cb = release;
2518 acquire_cb = acquire; 2885 acquire_cb = acquire;
2519} 2886}
2520#endif 2887#endif
2521 2888
2522/* initialise a loop structure, must be zero-initialised */ 2889/* initialise a loop structure, must be zero-initialised */
2523static void noinline ecb_cold 2890noinline ecb_cold
2891static void
2524loop_init (EV_P_ unsigned int flags) EV_THROW 2892loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2525{ 2893{
2526 if (!backend) 2894 if (!backend)
2527 { 2895 {
2528 origflags = flags; 2896 origflags = flags;
2529 2897
… …
2587 2955
2588 if (!(flags & EVBACKEND_MASK)) 2956 if (!(flags & EVBACKEND_MASK))
2589 flags |= ev_recommended_backends (); 2957 flags |= ev_recommended_backends ();
2590 2958
2591#if EV_USE_IOCP 2959#if EV_USE_IOCP
2592 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2960 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2593#endif 2961#endif
2594#if EV_USE_PORT 2962#if EV_USE_PORT
2595 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2963 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2596#endif 2964#endif
2597#if EV_USE_KQUEUE 2965#if EV_USE_KQUEUE
2598 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2966 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2967#endif
2968#if EV_USE_LINUXAIO
2969 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2599#endif 2970#endif
2600#if EV_USE_EPOLL 2971#if EV_USE_EPOLL
2601 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2972 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2602#endif 2973#endif
2603#if EV_USE_POLL 2974#if EV_USE_POLL
2604 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2975 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2605#endif 2976#endif
2606#if EV_USE_SELECT 2977#if EV_USE_SELECT
2607 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2978 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2608#endif 2979#endif
2609 2980
2610 ev_prepare_init (&pending_w, pendingcb); 2981 ev_prepare_init (&pending_w, pendingcb);
2611 2982
2612#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2983#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2615#endif 2986#endif
2616 } 2987 }
2617} 2988}
2618 2989
2619/* free up a loop structure */ 2990/* free up a loop structure */
2620void ecb_cold 2991ecb_cold
2992void
2621ev_loop_destroy (EV_P) 2993ev_loop_destroy (EV_P)
2622{ 2994{
2623 int i; 2995 int i;
2624 2996
2625#if EV_MULTIPLICITY 2997#if EV_MULTIPLICITY
… …
2666 3038
2667 if (backend_fd >= 0) 3039 if (backend_fd >= 0)
2668 close (backend_fd); 3040 close (backend_fd);
2669 3041
2670#if EV_USE_IOCP 3042#if EV_USE_IOCP
2671 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3043 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2672#endif 3044#endif
2673#if EV_USE_PORT 3045#if EV_USE_PORT
2674 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3046 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2675#endif 3047#endif
2676#if EV_USE_KQUEUE 3048#if EV_USE_KQUEUE
2677 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3049 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3050#endif
3051#if EV_USE_LINUXAIO
3052 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2678#endif 3053#endif
2679#if EV_USE_EPOLL 3054#if EV_USE_EPOLL
2680 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3055 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2681#endif 3056#endif
2682#if EV_USE_POLL 3057#if EV_USE_POLL
2683 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3058 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2684#endif 3059#endif
2685#if EV_USE_SELECT 3060#if EV_USE_SELECT
2686 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3061 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2687#endif 3062#endif
2688 3063
2689 for (i = NUMPRI; i--; ) 3064 for (i = NUMPRI; i--; )
2690 { 3065 {
2691 array_free (pending, [i]); 3066 array_free (pending, [i]);
… …
2733 3108
2734inline_size void 3109inline_size void
2735loop_fork (EV_P) 3110loop_fork (EV_P)
2736{ 3111{
2737#if EV_USE_PORT 3112#if EV_USE_PORT
2738 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3113 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2739#endif 3114#endif
2740#if EV_USE_KQUEUE 3115#if EV_USE_KQUEUE
2741 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3116 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3117#endif
3118#if EV_USE_LINUXAIO
3119 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2742#endif 3120#endif
2743#if EV_USE_EPOLL 3121#if EV_USE_EPOLL
2744 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3122 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2745#endif 3123#endif
2746#if EV_USE_INOTIFY 3124#if EV_USE_INOTIFY
2747 infy_fork (EV_A); 3125 infy_fork (EV_A);
2748#endif 3126#endif
2749 3127
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3128#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2751 if (ev_is_active (&pipe_w)) 3129 if (ev_is_active (&pipe_w) && postfork != 2)
2752 { 3130 {
2753 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3131 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2754 3132
2755 ev_ref (EV_A); 3133 ev_ref (EV_A);
2756 ev_io_stop (EV_A_ &pipe_w); 3134 ev_io_stop (EV_A_ &pipe_w);
… …
2767 postfork = 0; 3145 postfork = 0;
2768} 3146}
2769 3147
2770#if EV_MULTIPLICITY 3148#if EV_MULTIPLICITY
2771 3149
3150ecb_cold
2772struct ev_loop * ecb_cold 3151struct ev_loop *
2773ev_loop_new (unsigned int flags) EV_THROW 3152ev_loop_new (unsigned int flags) EV_NOEXCEPT
2774{ 3153{
2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3154 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2776 3155
2777 memset (EV_A, 0, sizeof (struct ev_loop)); 3156 memset (EV_A, 0, sizeof (struct ev_loop));
2778 loop_init (EV_A_ flags); 3157 loop_init (EV_A_ flags);
… …
2785} 3164}
2786 3165
2787#endif /* multiplicity */ 3166#endif /* multiplicity */
2788 3167
2789#if EV_VERIFY 3168#if EV_VERIFY
2790static void noinline ecb_cold 3169noinline ecb_cold
3170static void
2791verify_watcher (EV_P_ W w) 3171verify_watcher (EV_P_ W w)
2792{ 3172{
2793 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3173 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2794 3174
2795 if (w->pending) 3175 if (w->pending)
2796 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3176 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2797} 3177}
2798 3178
2799static void noinline ecb_cold 3179noinline ecb_cold
3180static void
2800verify_heap (EV_P_ ANHE *heap, int N) 3181verify_heap (EV_P_ ANHE *heap, int N)
2801{ 3182{
2802 int i; 3183 int i;
2803 3184
2804 for (i = HEAP0; i < N + HEAP0; ++i) 3185 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2809 3190
2810 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3191 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2811 } 3192 }
2812} 3193}
2813 3194
2814static void noinline ecb_cold 3195noinline ecb_cold
3196static void
2815array_verify (EV_P_ W *ws, int cnt) 3197array_verify (EV_P_ W *ws, int cnt)
2816{ 3198{
2817 while (cnt--) 3199 while (cnt--)
2818 { 3200 {
2819 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3201 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2822} 3204}
2823#endif 3205#endif
2824 3206
2825#if EV_FEATURE_API 3207#if EV_FEATURE_API
2826void ecb_cold 3208void ecb_cold
2827ev_verify (EV_P) EV_THROW 3209ev_verify (EV_P) EV_NOEXCEPT
2828{ 3210{
2829#if EV_VERIFY 3211#if EV_VERIFY
2830 int i; 3212 int i;
2831 WL w, w2; 3213 WL w, w2;
2832 3214
… …
2908#endif 3290#endif
2909} 3291}
2910#endif 3292#endif
2911 3293
2912#if EV_MULTIPLICITY 3294#if EV_MULTIPLICITY
3295ecb_cold
2913struct ev_loop * ecb_cold 3296struct ev_loop *
2914#else 3297#else
2915int 3298int
2916#endif 3299#endif
2917ev_default_loop (unsigned int flags) EV_THROW 3300ev_default_loop (unsigned int flags) EV_NOEXCEPT
2918{ 3301{
2919 if (!ev_default_loop_ptr) 3302 if (!ev_default_loop_ptr)
2920 { 3303 {
2921#if EV_MULTIPLICITY 3304#if EV_MULTIPLICITY
2922 EV_P = ev_default_loop_ptr = &default_loop_struct; 3305 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2941 3324
2942 return ev_default_loop_ptr; 3325 return ev_default_loop_ptr;
2943} 3326}
2944 3327
2945void 3328void
2946ev_loop_fork (EV_P) EV_THROW 3329ev_loop_fork (EV_P) EV_NOEXCEPT
2947{ 3330{
2948 postfork = 1; 3331 postfork = 1;
2949} 3332}
2950 3333
2951/*****************************************************************************/ 3334/*****************************************************************************/
… …
2955{ 3338{
2956 EV_CB_INVOKE ((W)w, revents); 3339 EV_CB_INVOKE ((W)w, revents);
2957} 3340}
2958 3341
2959unsigned int 3342unsigned int
2960ev_pending_count (EV_P) EV_THROW 3343ev_pending_count (EV_P) EV_NOEXCEPT
2961{ 3344{
2962 int pri; 3345 int pri;
2963 unsigned int count = 0; 3346 unsigned int count = 0;
2964 3347
2965 for (pri = NUMPRI; pri--; ) 3348 for (pri = NUMPRI; pri--; )
2966 count += pendingcnt [pri]; 3349 count += pendingcnt [pri];
2967 3350
2968 return count; 3351 return count;
2969} 3352}
2970 3353
2971void noinline 3354noinline
3355void
2972ev_invoke_pending (EV_P) 3356ev_invoke_pending (EV_P)
2973{ 3357{
2974 pendingpri = NUMPRI; 3358 pendingpri = NUMPRI;
2975 3359
2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3360 do
2977 { 3361 {
2978 --pendingpri; 3362 --pendingpri;
2979 3363
3364 /* pendingpri possibly gets modified in the inner loop */
2980 while (pendingcnt [pendingpri]) 3365 while (pendingcnt [pendingpri])
2981 { 3366 {
2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3367 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2983 3368
2984 p->w->pending = 0; 3369 p->w->pending = 0;
2985 EV_CB_INVOKE (p->w, p->events); 3370 EV_CB_INVOKE (p->w, p->events);
2986 EV_FREQUENT_CHECK; 3371 EV_FREQUENT_CHECK;
2987 } 3372 }
2988 } 3373 }
3374 while (pendingpri);
2989} 3375}
2990 3376
2991#if EV_IDLE_ENABLE 3377#if EV_IDLE_ENABLE
2992/* make idle watchers pending. this handles the "call-idle */ 3378/* make idle watchers pending. this handles the "call-idle */
2993/* only when higher priorities are idle" logic */ 3379/* only when higher priorities are idle" logic */
… …
3051 } 3437 }
3052} 3438}
3053 3439
3054#if EV_PERIODIC_ENABLE 3440#if EV_PERIODIC_ENABLE
3055 3441
3056static void noinline 3442noinline
3443static void
3057periodic_recalc (EV_P_ ev_periodic *w) 3444periodic_recalc (EV_P_ ev_periodic *w)
3058{ 3445{
3059 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3446 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3060 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3447 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3061 3448
… …
3119 } 3506 }
3120} 3507}
3121 3508
3122/* simply recalculate all periodics */ 3509/* simply recalculate all periodics */
3123/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3510/* TODO: maybe ensure that at least one event happens when jumping forward? */
3124static void noinline ecb_cold 3511noinline ecb_cold
3512static void
3125periodics_reschedule (EV_P) 3513periodics_reschedule (EV_P)
3126{ 3514{
3127 int i; 3515 int i;
3128 3516
3129 /* adjust periodics after time jump */ 3517 /* adjust periodics after time jump */
… …
3142 reheap (periodics, periodiccnt); 3530 reheap (periodics, periodiccnt);
3143} 3531}
3144#endif 3532#endif
3145 3533
3146/* adjust all timers by a given offset */ 3534/* adjust all timers by a given offset */
3147static void noinline ecb_cold 3535noinline ecb_cold
3536static void
3148timers_reschedule (EV_P_ ev_tstamp adjust) 3537timers_reschedule (EV_P_ ev_tstamp adjust)
3149{ 3538{
3150 int i; 3539 int i;
3151 3540
3152 for (i = 0; i < timercnt; ++i) 3541 for (i = 0; i < timercnt; ++i)
… …
3399 3788
3400 return activecnt; 3789 return activecnt;
3401} 3790}
3402 3791
3403void 3792void
3404ev_break (EV_P_ int how) EV_THROW 3793ev_break (EV_P_ int how) EV_NOEXCEPT
3405{ 3794{
3406 loop_done = how; 3795 loop_done = how;
3407} 3796}
3408 3797
3409void 3798void
3410ev_ref (EV_P) EV_THROW 3799ev_ref (EV_P) EV_NOEXCEPT
3411{ 3800{
3412 ++activecnt; 3801 ++activecnt;
3413} 3802}
3414 3803
3415void 3804void
3416ev_unref (EV_P) EV_THROW 3805ev_unref (EV_P) EV_NOEXCEPT
3417{ 3806{
3418 --activecnt; 3807 --activecnt;
3419} 3808}
3420 3809
3421void 3810void
3422ev_now_update (EV_P) EV_THROW 3811ev_now_update (EV_P) EV_NOEXCEPT
3423{ 3812{
3424 time_update (EV_A_ 1e100); 3813 time_update (EV_A_ 1e100);
3425} 3814}
3426 3815
3427void 3816void
3428ev_suspend (EV_P) EV_THROW 3817ev_suspend (EV_P) EV_NOEXCEPT
3429{ 3818{
3430 ev_now_update (EV_A); 3819 ev_now_update (EV_A);
3431} 3820}
3432 3821
3433void 3822void
3434ev_resume (EV_P) EV_THROW 3823ev_resume (EV_P) EV_NOEXCEPT
3435{ 3824{
3436 ev_tstamp mn_prev = mn_now; 3825 ev_tstamp mn_prev = mn_now;
3437 3826
3438 ev_now_update (EV_A); 3827 ev_now_update (EV_A);
3439 timers_reschedule (EV_A_ mn_now - mn_prev); 3828 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3478 w->pending = 0; 3867 w->pending = 0;
3479 } 3868 }
3480} 3869}
3481 3870
3482int 3871int
3483ev_clear_pending (EV_P_ void *w) EV_THROW 3872ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3484{ 3873{
3485 W w_ = (W)w; 3874 W w_ = (W)w;
3486 int pending = w_->pending; 3875 int pending = w_->pending;
3487 3876
3488 if (expect_true (pending)) 3877 if (expect_true (pending))
… …
3520 w->active = 0; 3909 w->active = 0;
3521} 3910}
3522 3911
3523/*****************************************************************************/ 3912/*****************************************************************************/
3524 3913
3525void noinline 3914noinline
3915void
3526ev_io_start (EV_P_ ev_io *w) EV_THROW 3916ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3527{ 3917{
3528 int fd = w->fd; 3918 int fd = w->fd;
3529 3919
3530 if (expect_false (ev_is_active (w))) 3920 if (expect_false (ev_is_active (w)))
3531 return; 3921 return;
… …
3534 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3924 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3535 3925
3536 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3537 3927
3538 ev_start (EV_A_ (W)w, 1); 3928 ev_start (EV_A_ (W)w, 1);
3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3929 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3540 wlist_add (&anfds[fd].head, (WL)w); 3930 wlist_add (&anfds[fd].head, (WL)w);
3541 3931
3542 /* common bug, apparently */ 3932 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3933 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544 3934
… …
3546 w->events &= ~EV__IOFDSET; 3936 w->events &= ~EV__IOFDSET;
3547 3937
3548 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3549} 3939}
3550 3940
3551void noinline 3941noinline
3942void
3552ev_io_stop (EV_P_ ev_io *w) EV_THROW 3943ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3553{ 3944{
3554 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3555 if (expect_false (!ev_is_active (w))) 3946 if (expect_false (!ev_is_active (w)))
3556 return; 3947 return;
3557 3948
… …
3565 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3956 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3566 3957
3567 EV_FREQUENT_CHECK; 3958 EV_FREQUENT_CHECK;
3568} 3959}
3569 3960
3570void noinline 3961noinline
3962void
3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3963ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3572{ 3964{
3573 if (expect_false (ev_is_active (w))) 3965 if (expect_false (ev_is_active (w)))
3574 return; 3966 return;
3575 3967
3576 ev_at (w) += mn_now; 3968 ev_at (w) += mn_now;
… …
3579 3971
3580 EV_FREQUENT_CHECK; 3972 EV_FREQUENT_CHECK;
3581 3973
3582 ++timercnt; 3974 ++timercnt;
3583 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3975 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3584 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3976 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3585 ANHE_w (timers [ev_active (w)]) = (WT)w; 3977 ANHE_w (timers [ev_active (w)]) = (WT)w;
3586 ANHE_at_cache (timers [ev_active (w)]); 3978 ANHE_at_cache (timers [ev_active (w)]);
3587 upheap (timers, ev_active (w)); 3979 upheap (timers, ev_active (w));
3588 3980
3589 EV_FREQUENT_CHECK; 3981 EV_FREQUENT_CHECK;
3590 3982
3591 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3983 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3592} 3984}
3593 3985
3594void noinline 3986noinline
3987void
3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3988ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3596{ 3989{
3597 clear_pending (EV_A_ (W)w); 3990 clear_pending (EV_A_ (W)w);
3598 if (expect_false (!ev_is_active (w))) 3991 if (expect_false (!ev_is_active (w)))
3599 return; 3992 return;
3600 3993
… …
3619 ev_stop (EV_A_ (W)w); 4012 ev_stop (EV_A_ (W)w);
3620 4013
3621 EV_FREQUENT_CHECK; 4014 EV_FREQUENT_CHECK;
3622} 4015}
3623 4016
3624void noinline 4017noinline
4018void
3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4019ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 4020{
3627 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
3628 4022
3629 clear_pending (EV_A_ (W)w); 4023 clear_pending (EV_A_ (W)w);
3630 4024
… …
3647 4041
3648 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3649} 4043}
3650 4044
3651ev_tstamp 4045ev_tstamp
3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4046ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3653{ 4047{
3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4048 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3655} 4049}
3656 4050
3657#if EV_PERIODIC_ENABLE 4051#if EV_PERIODIC_ENABLE
3658void noinline 4052noinline
4053void
3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4054ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3660{ 4055{
3661 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3662 return; 4057 return;
3663 4058
3664 if (w->reschedule_cb) 4059 if (w->reschedule_cb)
… …
3673 4068
3674 EV_FREQUENT_CHECK; 4069 EV_FREQUENT_CHECK;
3675 4070
3676 ++periodiccnt; 4071 ++periodiccnt;
3677 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4072 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3678 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4073 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3679 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4074 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3680 ANHE_at_cache (periodics [ev_active (w)]); 4075 ANHE_at_cache (periodics [ev_active (w)]);
3681 upheap (periodics, ev_active (w)); 4076 upheap (periodics, ev_active (w));
3682 4077
3683 EV_FREQUENT_CHECK; 4078 EV_FREQUENT_CHECK;
3684 4079
3685 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4080 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3686} 4081}
3687 4082
3688void noinline 4083noinline
4084void
3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4085ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3690{ 4086{
3691 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3692 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3693 return; 4089 return;
3694 4090
… …
3711 ev_stop (EV_A_ (W)w); 4107 ev_stop (EV_A_ (W)w);
3712 4108
3713 EV_FREQUENT_CHECK; 4109 EV_FREQUENT_CHECK;
3714} 4110}
3715 4111
3716void noinline 4112noinline
4113void
3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4114ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3718{ 4115{
3719 /* TODO: use adjustheap and recalculation */ 4116 /* TODO: use adjustheap and recalculation */
3720 ev_periodic_stop (EV_A_ w); 4117 ev_periodic_stop (EV_A_ w);
3721 ev_periodic_start (EV_A_ w); 4118 ev_periodic_start (EV_A_ w);
3722} 4119}
… …
3726# define SA_RESTART 0 4123# define SA_RESTART 0
3727#endif 4124#endif
3728 4125
3729#if EV_SIGNAL_ENABLE 4126#if EV_SIGNAL_ENABLE
3730 4127
3731void noinline 4128noinline
4129void
3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4130ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3733{ 4131{
3734 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3735 return; 4133 return;
3736 4134
3737 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4135 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3808 } 4206 }
3809 4207
3810 EV_FREQUENT_CHECK; 4208 EV_FREQUENT_CHECK;
3811} 4209}
3812 4210
3813void noinline 4211noinline
4212void
3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4213ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3815{ 4214{
3816 clear_pending (EV_A_ (W)w); 4215 clear_pending (EV_A_ (W)w);
3817 if (expect_false (!ev_is_active (w))) 4216 if (expect_false (!ev_is_active (w)))
3818 return; 4217 return;
3819 4218
… …
3850#endif 4249#endif
3851 4250
3852#if EV_CHILD_ENABLE 4251#if EV_CHILD_ENABLE
3853 4252
3854void 4253void
3855ev_child_start (EV_P_ ev_child *w) EV_THROW 4254ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3856{ 4255{
3857#if EV_MULTIPLICITY 4256#if EV_MULTIPLICITY
3858 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4257 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3859#endif 4258#endif
3860 if (expect_false (ev_is_active (w))) 4259 if (expect_false (ev_is_active (w)))
… …
3867 4266
3868 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3869} 4268}
3870 4269
3871void 4270void
3872ev_child_stop (EV_P_ ev_child *w) EV_THROW 4271ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3873{ 4272{
3874 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3875 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3876 return; 4275 return;
3877 4276
… …
3894 4293
3895#define DEF_STAT_INTERVAL 5.0074891 4294#define DEF_STAT_INTERVAL 5.0074891
3896#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4295#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3897#define MIN_STAT_INTERVAL 0.1074891 4296#define MIN_STAT_INTERVAL 0.1074891
3898 4297
3899static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4298noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3900 4299
3901#if EV_USE_INOTIFY 4300#if EV_USE_INOTIFY
3902 4301
3903/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4302/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4303# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3905 4304
3906static void noinline 4305noinline
4306static void
3907infy_add (EV_P_ ev_stat *w) 4307infy_add (EV_P_ ev_stat *w)
3908{ 4308{
3909 w->wd = inotify_add_watch (fs_fd, w->path, 4309 w->wd = inotify_add_watch (fs_fd, w->path,
3910 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4310 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3911 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4311 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3975 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4375 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3976 ev_timer_again (EV_A_ &w->timer); 4376 ev_timer_again (EV_A_ &w->timer);
3977 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4377 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3978} 4378}
3979 4379
3980static void noinline 4380noinline
4381static void
3981infy_del (EV_P_ ev_stat *w) 4382infy_del (EV_P_ ev_stat *w)
3982{ 4383{
3983 int slot; 4384 int slot;
3984 int wd = w->wd; 4385 int wd = w->wd;
3985 4386
… …
3992 4393
3993 /* remove this watcher, if others are watching it, they will rearm */ 4394 /* remove this watcher, if others are watching it, they will rearm */
3994 inotify_rm_watch (fs_fd, wd); 4395 inotify_rm_watch (fs_fd, wd);
3995} 4396}
3996 4397
3997static void noinline 4398noinline
4399static void
3998infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4400infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3999{ 4401{
4000 if (slot < 0) 4402 if (slot < 0)
4001 /* overflow, need to check for all hash slots */ 4403 /* overflow, need to check for all hash slots */
4002 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4404 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4038 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4440 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4039 ofs += sizeof (struct inotify_event) + ev->len; 4441 ofs += sizeof (struct inotify_event) + ev->len;
4040 } 4442 }
4041} 4443}
4042 4444
4043inline_size void ecb_cold 4445inline_size ecb_cold
4446void
4044ev_check_2625 (EV_P) 4447ev_check_2625 (EV_P)
4045{ 4448{
4046 /* kernels < 2.6.25 are borked 4449 /* kernels < 2.6.25 are borked
4047 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4450 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4048 */ 4451 */
… …
4138#else 4541#else
4139# define EV_LSTAT(p,b) lstat (p, b) 4542# define EV_LSTAT(p,b) lstat (p, b)
4140#endif 4543#endif
4141 4544
4142void 4545void
4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4546ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4144{ 4547{
4145 if (lstat (w->path, &w->attr) < 0) 4548 if (lstat (w->path, &w->attr) < 0)
4146 w->attr.st_nlink = 0; 4549 w->attr.st_nlink = 0;
4147 else if (!w->attr.st_nlink) 4550 else if (!w->attr.st_nlink)
4148 w->attr.st_nlink = 1; 4551 w->attr.st_nlink = 1;
4149} 4552}
4150 4553
4151static void noinline 4554noinline
4555static void
4152stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4556stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4153{ 4557{
4154 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4558 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4155 4559
4156 ev_statdata prev = w->attr; 4560 ev_statdata prev = w->attr;
… …
4187 ev_feed_event (EV_A_ w, EV_STAT); 4591 ev_feed_event (EV_A_ w, EV_STAT);
4188 } 4592 }
4189} 4593}
4190 4594
4191void 4595void
4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4596ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4193{ 4597{
4194 if (expect_false (ev_is_active (w))) 4598 if (expect_false (ev_is_active (w)))
4195 return; 4599 return;
4196 4600
4197 ev_stat_stat (EV_A_ w); 4601 ev_stat_stat (EV_A_ w);
… …
4218 4622
4219 EV_FREQUENT_CHECK; 4623 EV_FREQUENT_CHECK;
4220} 4624}
4221 4625
4222void 4626void
4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4627ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4224{ 4628{
4225 clear_pending (EV_A_ (W)w); 4629 clear_pending (EV_A_ (W)w);
4226 if (expect_false (!ev_is_active (w))) 4630 if (expect_false (!ev_is_active (w)))
4227 return; 4631 return;
4228 4632
… …
4244} 4648}
4245#endif 4649#endif
4246 4650
4247#if EV_IDLE_ENABLE 4651#if EV_IDLE_ENABLE
4248void 4652void
4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4653ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4250{ 4654{
4251 if (expect_false (ev_is_active (w))) 4655 if (expect_false (ev_is_active (w)))
4252 return; 4656 return;
4253 4657
4254 pri_adjust (EV_A_ (W)w); 4658 pri_adjust (EV_A_ (W)w);
… …
4259 int active = ++idlecnt [ABSPRI (w)]; 4663 int active = ++idlecnt [ABSPRI (w)];
4260 4664
4261 ++idleall; 4665 ++idleall;
4262 ev_start (EV_A_ (W)w, active); 4666 ev_start (EV_A_ (W)w, active);
4263 4667
4264 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4668 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4265 idles [ABSPRI (w)][active - 1] = w; 4669 idles [ABSPRI (w)][active - 1] = w;
4266 } 4670 }
4267 4671
4268 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
4269} 4673}
4270 4674
4271void 4675void
4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4676ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4273{ 4677{
4274 clear_pending (EV_A_ (W)w); 4678 clear_pending (EV_A_ (W)w);
4275 if (expect_false (!ev_is_active (w))) 4679 if (expect_false (!ev_is_active (w)))
4276 return; 4680 return;
4277 4681
… …
4291} 4695}
4292#endif 4696#endif
4293 4697
4294#if EV_PREPARE_ENABLE 4698#if EV_PREPARE_ENABLE
4295void 4699void
4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4700ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4297{ 4701{
4298 if (expect_false (ev_is_active (w))) 4702 if (expect_false (ev_is_active (w)))
4299 return; 4703 return;
4300 4704
4301 EV_FREQUENT_CHECK; 4705 EV_FREQUENT_CHECK;
4302 4706
4303 ev_start (EV_A_ (W)w, ++preparecnt); 4707 ev_start (EV_A_ (W)w, ++preparecnt);
4304 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4708 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4305 prepares [preparecnt - 1] = w; 4709 prepares [preparecnt - 1] = w;
4306 4710
4307 EV_FREQUENT_CHECK; 4711 EV_FREQUENT_CHECK;
4308} 4712}
4309 4713
4310void 4714void
4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4715ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4312{ 4716{
4313 clear_pending (EV_A_ (W)w); 4717 clear_pending (EV_A_ (W)w);
4314 if (expect_false (!ev_is_active (w))) 4718 if (expect_false (!ev_is_active (w)))
4315 return; 4719 return;
4316 4720
… …
4329} 4733}
4330#endif 4734#endif
4331 4735
4332#if EV_CHECK_ENABLE 4736#if EV_CHECK_ENABLE
4333void 4737void
4334ev_check_start (EV_P_ ev_check *w) EV_THROW 4738ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4335{ 4739{
4336 if (expect_false (ev_is_active (w))) 4740 if (expect_false (ev_is_active (w)))
4337 return; 4741 return;
4338 4742
4339 EV_FREQUENT_CHECK; 4743 EV_FREQUENT_CHECK;
4340 4744
4341 ev_start (EV_A_ (W)w, ++checkcnt); 4745 ev_start (EV_A_ (W)w, ++checkcnt);
4342 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4746 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4343 checks [checkcnt - 1] = w; 4747 checks [checkcnt - 1] = w;
4344 4748
4345 EV_FREQUENT_CHECK; 4749 EV_FREQUENT_CHECK;
4346} 4750}
4347 4751
4348void 4752void
4349ev_check_stop (EV_P_ ev_check *w) EV_THROW 4753ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4350{ 4754{
4351 clear_pending (EV_A_ (W)w); 4755 clear_pending (EV_A_ (W)w);
4352 if (expect_false (!ev_is_active (w))) 4756 if (expect_false (!ev_is_active (w)))
4353 return; 4757 return;
4354 4758
… …
4366 EV_FREQUENT_CHECK; 4770 EV_FREQUENT_CHECK;
4367} 4771}
4368#endif 4772#endif
4369 4773
4370#if EV_EMBED_ENABLE 4774#if EV_EMBED_ENABLE
4371void noinline 4775noinline
4776void
4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4777ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4373{ 4778{
4374 ev_run (w->other, EVRUN_NOWAIT); 4779 ev_run (w->other, EVRUN_NOWAIT);
4375} 4780}
4376 4781
4377static void 4782static void
… …
4425 ev_idle_stop (EV_A_ idle); 4830 ev_idle_stop (EV_A_ idle);
4426} 4831}
4427#endif 4832#endif
4428 4833
4429void 4834void
4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4835ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4431{ 4836{
4432 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4433 return; 4838 return;
4434 4839
4435 { 4840 {
… …
4456 4861
4457 EV_FREQUENT_CHECK; 4862 EV_FREQUENT_CHECK;
4458} 4863}
4459 4864
4460void 4865void
4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4866ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4462{ 4867{
4463 clear_pending (EV_A_ (W)w); 4868 clear_pending (EV_A_ (W)w);
4464 if (expect_false (!ev_is_active (w))) 4869 if (expect_false (!ev_is_active (w)))
4465 return; 4870 return;
4466 4871
… …
4476} 4881}
4477#endif 4882#endif
4478 4883
4479#if EV_FORK_ENABLE 4884#if EV_FORK_ENABLE
4480void 4885void
4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4886ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4482{ 4887{
4483 if (expect_false (ev_is_active (w))) 4888 if (expect_false (ev_is_active (w)))
4484 return; 4889 return;
4485 4890
4486 EV_FREQUENT_CHECK; 4891 EV_FREQUENT_CHECK;
4487 4892
4488 ev_start (EV_A_ (W)w, ++forkcnt); 4893 ev_start (EV_A_ (W)w, ++forkcnt);
4489 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4894 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4490 forks [forkcnt - 1] = w; 4895 forks [forkcnt - 1] = w;
4491 4896
4492 EV_FREQUENT_CHECK; 4897 EV_FREQUENT_CHECK;
4493} 4898}
4494 4899
4495void 4900void
4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4901ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4497{ 4902{
4498 clear_pending (EV_A_ (W)w); 4903 clear_pending (EV_A_ (W)w);
4499 if (expect_false (!ev_is_active (w))) 4904 if (expect_false (!ev_is_active (w)))
4500 return; 4905 return;
4501 4906
… …
4514} 4919}
4515#endif 4920#endif
4516 4921
4517#if EV_CLEANUP_ENABLE 4922#if EV_CLEANUP_ENABLE
4518void 4923void
4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4924ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4520{ 4925{
4521 if (expect_false (ev_is_active (w))) 4926 if (expect_false (ev_is_active (w)))
4522 return; 4927 return;
4523 4928
4524 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4525 4930
4526 ev_start (EV_A_ (W)w, ++cleanupcnt); 4931 ev_start (EV_A_ (W)w, ++cleanupcnt);
4527 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4932 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4528 cleanups [cleanupcnt - 1] = w; 4933 cleanups [cleanupcnt - 1] = w;
4529 4934
4530 /* cleanup watchers should never keep a refcount on the loop */ 4935 /* cleanup watchers should never keep a refcount on the loop */
4531 ev_unref (EV_A); 4936 ev_unref (EV_A);
4532 EV_FREQUENT_CHECK; 4937 EV_FREQUENT_CHECK;
4533} 4938}
4534 4939
4535void 4940void
4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4941ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4537{ 4942{
4538 clear_pending (EV_A_ (W)w); 4943 clear_pending (EV_A_ (W)w);
4539 if (expect_false (!ev_is_active (w))) 4944 if (expect_false (!ev_is_active (w)))
4540 return; 4945 return;
4541 4946
… …
4555} 4960}
4556#endif 4961#endif
4557 4962
4558#if EV_ASYNC_ENABLE 4963#if EV_ASYNC_ENABLE
4559void 4964void
4560ev_async_start (EV_P_ ev_async *w) EV_THROW 4965ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4561{ 4966{
4562 if (expect_false (ev_is_active (w))) 4967 if (expect_false (ev_is_active (w)))
4563 return; 4968 return;
4564 4969
4565 w->sent = 0; 4970 w->sent = 0;
… …
4567 evpipe_init (EV_A); 4972 evpipe_init (EV_A);
4568 4973
4569 EV_FREQUENT_CHECK; 4974 EV_FREQUENT_CHECK;
4570 4975
4571 ev_start (EV_A_ (W)w, ++asynccnt); 4976 ev_start (EV_A_ (W)w, ++asynccnt);
4572 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4977 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4573 asyncs [asynccnt - 1] = w; 4978 asyncs [asynccnt - 1] = w;
4574 4979
4575 EV_FREQUENT_CHECK; 4980 EV_FREQUENT_CHECK;
4576} 4981}
4577 4982
4578void 4983void
4579ev_async_stop (EV_P_ ev_async *w) EV_THROW 4984ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4580{ 4985{
4581 clear_pending (EV_A_ (W)w); 4986 clear_pending (EV_A_ (W)w);
4582 if (expect_false (!ev_is_active (w))) 4987 if (expect_false (!ev_is_active (w)))
4583 return; 4988 return;
4584 4989
… …
4595 5000
4596 EV_FREQUENT_CHECK; 5001 EV_FREQUENT_CHECK;
4597} 5002}
4598 5003
4599void 5004void
4600ev_async_send (EV_P_ ev_async *w) EV_THROW 5005ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4601{ 5006{
4602 w->sent = 1; 5007 w->sent = 1;
4603 evpipe_write (EV_A_ &async_pending); 5008 evpipe_write (EV_A_ &async_pending);
4604} 5009}
4605#endif 5010#endif
… …
4642 5047
4643 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5048 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4644} 5049}
4645 5050
4646void 5051void
4647ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5052ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4648{ 5053{
4649 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5054 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4650
4651 if (expect_false (!once))
4652 {
4653 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4654 return;
4655 }
4656 5055
4657 once->cb = cb; 5056 once->cb = cb;
4658 once->arg = arg; 5057 once->arg = arg;
4659 5058
4660 ev_init (&once->io, once_cb_io); 5059 ev_init (&once->io, once_cb_io);
… …
4673} 5072}
4674 5073
4675/*****************************************************************************/ 5074/*****************************************************************************/
4676 5075
4677#if EV_WALK_ENABLE 5076#if EV_WALK_ENABLE
4678void ecb_cold 5077ecb_cold
5078void
4679ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5079ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4680{ 5080{
4681 int i, j; 5081 int i, j;
4682 ev_watcher_list *wl, *wn; 5082 ev_watcher_list *wl, *wn;
4683 5083
4684 if (types & (EV_IO | EV_EMBED)) 5084 if (types & (EV_IO | EV_EMBED))

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