ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.458 by root, Sun Oct 27 16:26:07 2013 UTC vs.
Revision 1.498 by root, Wed Jun 26 00:01:46 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 385#endif
361 386
362#ifdef ANDROID 387#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 388/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 389# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 390# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 392# undef EV_USE_CLOCK_SYSCALL
… …
408 433
409#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
413# endif 446# endif
414#endif 447#endif
415 448
416#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
417# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
487/* 520/*
488 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
489 * 522 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 525 * All rights reserved.
493 * 526 *
494 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
514 */ 558 */
515 559
516#ifndef ECB_H 560#ifndef ECB_H
517#define ECB_H 561#define ECB_H
518 562
519/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 564#define ECB_VERSION 0x00010006
521 565
522#ifdef _WIN32 566#ifdef _WIN32
523 typedef signed char int8_t; 567 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
544 #endif 588 #endif
545#else 589#else
546 #include <inttypes.h> 590 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
549 #else 593 #else
550 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
551 #endif 595 #endif
552#endif 596#endif
553 597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
554/* work around x32 idiocy by defining proper macros */ 601/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if _ILP32 603 #if _ILP32
557 #define ECB_AMD64_X32 1 604 #define ECB_AMD64_X32 1
558 #else 605 #else
559 #define ECB_AMD64 1 606 #define ECB_AMD64 1
560 #endif 607 #endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 613 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
569 */ 616 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
573 #else 619#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 621#endif
576#endif
577 622
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
581#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 653
584#if ECB_CPP 654#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
602 672
603#if ECB_NO_SMP 673#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
605#endif 675#endif
606 676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
684#endif
685
607#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
688 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
609 #if __i386 || __i386__ 689 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
699 #elif defined __ARM_ARCH_2__ \
700 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
701 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
702 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
703 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
704 || defined __ARM_ARCH_5TEJ__
705 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 719 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
651 741
652#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7) 743 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */ 744 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 745 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
746 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
747 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
748 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
656 749
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 750 #elif ECB_CLANG_EXTENSION(c_atomic)
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model. 751 /* see comment below (stdatomic.h) about the C11 memory model. */
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 752 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */ 753 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
754 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
755 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
665 756
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize () 758 #define ECB_MEMORY_FENCE __sync_synchronize ()
759 #elif _MSC_VER >= 1500 /* VC++ 2008 */
760 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
761 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
762 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
763 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
764 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 765 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 766 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 767 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 768 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 769 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
673 #elif defined _WIN32 770 #elif defined _WIN32
674 #include <WinNT.h> 771 #include <WinNT.h>
675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h> 774 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 777 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
778 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
681 #elif __xlC__ 779 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync () 780 #define ECB_MEMORY_FENCE __sync ()
683 #endif 781 #endif
684#endif 782#endif
685 783
686#ifndef ECB_MEMORY_FENCE 784#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */ 786 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */ 787 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h> 788 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 789 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
790 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
791 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
698 #endif 792 #endif
699#endif 793#endif
700 794
701#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
702 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
722 816
723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif 819#endif
726 820
821#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
822 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
823#endif
824
727/*****************************************************************************/ 825/*****************************************************************************/
728 826
729#if __cplusplus 827#if ECB_CPP
730 #define ecb_inline static inline 828 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
733#elif ECB_C99 831#elif ECB_C99
734 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
748 846
749#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 850#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
851#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
753 852
754#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
755 854
756#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
757 #define ecb_attribute(attrlist) __attribute__(attrlist) 856 #define ecb_attribute(attrlist) __attribute__ (attrlist)
857#else
858 #define ecb_attribute(attrlist)
859#endif
860
861#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr) 862 #define ecb_is_constant(expr) __builtin_constant_p (expr)
863#else
864 /* possible C11 impl for integral types
865 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
866 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
867
868 #define ecb_is_constant(expr) 0
869#endif
870
871#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 872 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
873#else
874 #define ecb_expect(expr,value) (expr)
875#endif
876
877#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else 879#else
762 #define ecb_attribute(attrlist)
763 #define ecb_is_constant(expr) 0
764 #define ecb_expect(expr,value) (expr)
765 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
766#endif 881#endif
767 882
768/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5) 884#if ECB_CPP11
885 // older implementations might have problems with decltype(x)::type, work around it
886 template<class T> struct ecb_decltype_t { typedef T type; };
770 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
771#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
772 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
773#endif 890#endif
774 891
892#if _MSC_VER >= 1300
893 #define ecb_deprecated __declspec (deprecated)
894#else
895 #define ecb_deprecated ecb_attribute ((__deprecated__))
896#endif
897
898#if _MSC_VER >= 1500
899 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
900#elif ECB_GCC_VERSION(4,5)
901 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
902#else
903 #define ecb_deprecated_message(msg) ecb_deprecated
904#endif
905
906#if _MSC_VER >= 1400
907 #define ecb_noinline __declspec (noinline)
908#else
775#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
910#endif
911
776#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
779 915
780#if ECB_C11 916#if ECB_C11 || __IBMC_NORETURN
917 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
781 #define ecb_noreturn _Noreturn 918 #define ecb_noreturn _Noreturn
919#elif ECB_CPP11
920 #define ecb_noreturn [[noreturn]]
921#elif _MSC_VER >= 1200
922 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
923 #define ecb_noreturn __declspec (noreturn)
782#else 924#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__)) 925 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif 926#endif
785 927
786#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
… …
801/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
804 946
805/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4) 948#if ECB_GCC_VERSION(3,4) \
949 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
950 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
951 && ECB_CLANG_BUILTIN(__builtin_popcount))
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 952 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */ 958 /* no popcountll */
814#else 959#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
816 ecb_function_ int 961 ecb_function_ ecb_const int
817 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
818 { 963 {
964#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
965 unsigned long r;
966 _BitScanForward (&r, x);
967 return (int)r;
968#else
819 int r = 0; 969 int r = 0;
820 970
821 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
822 972
823#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
833 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
835#endif 985#endif
836 986
837 return r; 987 return r;
988#endif
838 } 989 }
839 990
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
841 ecb_function_ int 992 ecb_function_ ecb_const int
842 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
843 { 994 {
995#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
996 unsigned long r;
997 _BitScanForward64 (&r, x);
998 return (int)r;
999#else
844 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
846 } 1003 }
847 1004
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
849 ecb_function_ int 1006 ecb_function_ ecb_const int
850 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
851 { 1008 {
852 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101; 1012 x *= 0x01010101;
856 1013
857 return x >> 24; 1014 return x >> 24;
858 } 1015 }
859 1016
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
861 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
862 { 1019 {
1020#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1021 unsigned long r;
1022 _BitScanReverse (&r, x);
1023 return (int)r;
1024#else
863 int r = 0; 1025 int r = 0;
864 1026
865 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
870 1032
871 return r; 1033 return r;
1034#endif
872 } 1035 }
873 1036
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
875 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
876 { 1039 {
1040#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1041 unsigned long r;
1042 _BitScanReverse64 (&r, x);
1043 return (int)r;
1044#else
877 int r = 0; 1045 int r = 0;
878 1046
879 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
880 1048
881 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
882 } 1051 }
883#endif 1052#endif
884 1053
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1057ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889 1058
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
892{ 1061{
893 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895} 1064}
896 1065
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
899{ 1068{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
904 1073
905 return x; 1074 return x;
906} 1075}
907 1076
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
910{ 1079{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
917 return x; 1086 return x;
918} 1087}
919 1088
920/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */ 1090/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
923ecb_function_ int 1092ecb_function_ ecb_const int
924ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
925{ 1094{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927} 1096}
928 1097
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
930ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
931ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
932ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
933ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
934ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
935ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
936ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
937 1106
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1107ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
939ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1108ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
940ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1109ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
941ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1110ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
942ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1111ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
943ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1112ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
944ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1113ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
945ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1114ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
946 1115
947#if ECB_GCC_VERSION(4,3) 1116#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1117 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
949 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #define ecb_bswap64(x) __builtin_bswap64 (x) 1123 #define ecb_bswap64(x) __builtin_bswap64 (x)
1124#elif _MSC_VER
1125 #include <stdlib.h>
1126 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1127 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1128 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
951#else 1129#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
953 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
954 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
955 { 1133 {
956 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
957 } 1135 }
958 1136
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
960 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
961 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
962 { 1140 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 } 1142 }
965 1143
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
967 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
968 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
969 { 1147 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 } 1149 }
972#endif 1150#endif
973 1151
974#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
975 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
976#else 1154#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1155 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
979 ecb_inline void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
980#endif 1158#endif
981 1159
982/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984 1162
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
986ecb_inline unsigned char 1164ecb_inline ecb_const uint32_t
987ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
988{ 1166{
989 /* the union code still generates code under pressure in gcc, */ 1167 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */ 1168 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */ 1169 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */ 1170 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */ 1171 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */ 1172 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1173#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1174 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1175 #define ECB_LITTLE_ENDIAN 1
998 return 0x44; 1176 return 0x44332211;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1177#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1178 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1179 #define ECB_BIG_ENDIAN 1
1000 return 0x11; 1180 return 0x11223344;
1001#else 1181#else
1002 union 1182 union
1003 { 1183 {
1184 uint8_t c[4];
1004 uint32_t i; 1185 uint32_t u;
1005 uint8_t c;
1006 } u = { 0x11223344 }; 1186 } u = { 0x11, 0x22, 0x33, 0x44 };
1007 return u.c; 1187 return u.u;
1008#endif 1188#endif
1009} 1189}
1010 1190
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1192ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1194ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1015 1195
1016#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1197 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1018#else 1198#else
1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1199 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1020#endif 1200#endif
1021 1201
1022#if __cplusplus 1202#if ECB_CPP
1023 template<typename T> 1203 template<typename T>
1024 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
1025 { 1205 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 } 1207 }
… …
1044 } 1224 }
1045#else 1225#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif 1227#endif
1048 1228
1229ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1230ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x)
1232{
1233 unsigned int s = (x & 0x8000) << (31 - 15);
1234 int e = (x >> 10) & 0x001f;
1235 unsigned int m = x & 0x03ff;
1236
1237 if (ecb_expect_false (e == 31))
1238 /* infinity or NaN */
1239 e = 255 - (127 - 15);
1240 else if (ecb_expect_false (!e))
1241 {
1242 if (ecb_expect_true (!m))
1243 /* zero, handled by code below by forcing e to 0 */
1244 e = 0 - (127 - 15);
1245 else
1246 {
1247 /* subnormal, renormalise */
1248 unsigned int s = 10 - ecb_ld32 (m);
1249
1250 m = (m << s) & 0x3ff; /* mask implicit bit */
1251 e -= s - 1;
1252 }
1253 }
1254
1255 /* e and m now are normalised, or zero, (or inf or nan) */
1256 e += 127 - 15;
1257
1258 return s | (e << 23) | (m << (23 - 10));
1259}
1260
1261ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1262ecb_function_ ecb_const uint16_t
1263ecb_binary32_to_binary16 (uint32_t x)
1264{
1265 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1266 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1267 unsigned int m = x & 0x007fffff;
1268
1269 x &= 0x7fffffff;
1270
1271 /* if it's within range of binary16 normals, use fast path */
1272 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1273 {
1274 /* mantissa round-to-even */
1275 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1276
1277 /* handle overflow */
1278 if (ecb_expect_false (m >= 0x00800000))
1279 {
1280 m >>= 1;
1281 e += 1;
1282 }
1283
1284 return s | (e << 10) | (m >> (23 - 10));
1285 }
1286
1287 /* handle large numbers and infinity */
1288 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1289 return s | 0x7c00;
1290
1291 /* handle zero, subnormals and small numbers */
1292 if (ecb_expect_true (x < 0x38800000))
1293 {
1294 /* zero */
1295 if (ecb_expect_true (!x))
1296 return s;
1297
1298 /* handle subnormals */
1299
1300 /* too small, will be zero */
1301 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1302 return s;
1303
1304 m |= 0x00800000; /* make implicit bit explicit */
1305
1306 /* very tricky - we need to round to the nearest e (+10) bit value */
1307 {
1308 unsigned int bits = 14 - e;
1309 unsigned int half = (1 << (bits - 1)) - 1;
1310 unsigned int even = (m >> bits) & 1;
1311
1312 /* if this overflows, we will end up with a normalised number */
1313 m = (m + half + even) >> bits;
1314 }
1315
1316 return s | m;
1317 }
1318
1319 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1320 m >>= 13;
1321
1322 return s | 0x7c00 | m | !m;
1323}
1324
1049/*******************************************************************************/ 1325/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1326/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051 1327
1052/* basically, everything uses "ieee pure-endian" floating point numbers */ 1328/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1329/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \ 1330#if 0 \
1055 || __i386 || __i386__ \ 1331 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1332 || ECB_GCC_AMD64 \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1333 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \ 1334 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \ 1335 || defined __mips__ \
1061 || defined __alpha__ \ 1336 || defined __alpha__ \
1062 || defined __hppa__ \ 1337 || defined __hppa__ \
1063 || defined __ia64__ \ 1338 || defined __ia64__ \
1064 || defined __m68k__ \ 1339 || defined __m68k__ \
1065 || defined __m88k__ \ 1340 || defined __m88k__ \
1066 || defined __sh__ \ 1341 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1343 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1344 || defined __aarch64__
1068 #define ECB_STDFP 1 1345 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */ 1346 #include <string.h> /* for memcpy */
1070#else 1347#else
1071 #define ECB_STDFP 0 1348 #define ECB_STDFP 0
1072#endif 1349#endif
1073 1350
1074#ifndef ECB_NO_LIBM 1351#ifndef ECB_NO_LIBM
1075 1352
1076 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ 1353 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1077 1354
1355 /* only the oldest of old doesn't have this one. solaris. */
1356 #ifdef INFINITY
1357 #define ECB_INFINITY INFINITY
1358 #else
1359 #define ECB_INFINITY HUGE_VAL
1360 #endif
1361
1078 #ifdef NEN 1362 #ifdef NAN
1079 #define ECB_NAN NAN 1363 #define ECB_NAN NAN
1080 #else 1364 #else
1081 #define ECB_NAN INFINITY 1365 #define ECB_NAN ECB_INFINITY
1082 #endif 1366 #endif
1083 1367
1084 /* converts an ieee half/binary16 to a float */ 1368 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1085 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1369 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1086 ecb_function_ float 1370 #define ecb_frexpf(x,e) frexpf ((x), (e))
1087 ecb_binary16_to_float (uint16_t x) 1371 #else
1088 { 1372 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1089 int e = (x >> 10) & 0x1f; 1373 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1090 int m = x & 0x3ff; 1374 #endif
1091 float r;
1092
1093 if (!e ) r = ldexpf (m , -24);
1094 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1095 else if (m ) r = ECB_NAN;
1096 else r = INFINITY;
1097
1098 return x & 0x8000 ? -r : r;
1099 }
1100 1375
1101 /* convert a float to ieee single/binary32 */ 1376 /* convert a float to ieee single/binary32 */
1102 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1377 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1103 ecb_function_ uint32_t 1378 ecb_function_ ecb_const uint32_t
1104 ecb_float_to_binary32 (float x) 1379 ecb_float_to_binary32 (float x)
1105 { 1380 {
1106 uint32_t r; 1381 uint32_t r;
1107 1382
1108 #if ECB_STDFP 1383 #if ECB_STDFP
… …
1115 if (x == 0e0f ) return 0x00000000U; 1390 if (x == 0e0f ) return 0x00000000U;
1116 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1391 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1117 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1392 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1118 if (x != x ) return 0x7fbfffffU; 1393 if (x != x ) return 0x7fbfffffU;
1119 1394
1120 m = frexpf (x, &e) * 0x1000000U; 1395 m = ecb_frexpf (x, &e) * 0x1000000U;
1121 1396
1122 r = m & 0x80000000U; 1397 r = m & 0x80000000U;
1123 1398
1124 if (r) 1399 if (r)
1125 m = -m; 1400 m = -m;
… …
1137 1412
1138 return r; 1413 return r;
1139 } 1414 }
1140 1415
1141 /* converts an ieee single/binary32 to a float */ 1416 /* converts an ieee single/binary32 to a float */
1142 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1417 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1143 ecb_function_ float 1418 ecb_function_ ecb_const float
1144 ecb_binary32_to_float (uint32_t x) 1419 ecb_binary32_to_float (uint32_t x)
1145 { 1420 {
1146 float r; 1421 float r;
1147 1422
1148 #if ECB_STDFP 1423 #if ECB_STDFP
… …
1158 x |= 0x800000U; 1433 x |= 0x800000U;
1159 else 1434 else
1160 e = 1; 1435 e = 1;
1161 1436
1162 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1437 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1163 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1438 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1164 1439
1165 r = neg ? -r : r; 1440 r = neg ? -r : r;
1166 #endif 1441 #endif
1167 1442
1168 return r; 1443 return r;
1169 } 1444 }
1170 1445
1171 /* convert a double to ieee double/binary64 */ 1446 /* convert a double to ieee double/binary64 */
1172 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1447 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1173 ecb_function_ uint64_t 1448 ecb_function_ ecb_const uint64_t
1174 ecb_double_to_binary64 (double x) 1449 ecb_double_to_binary64 (double x)
1175 { 1450 {
1176 uint64_t r; 1451 uint64_t r;
1177 1452
1178 #if ECB_STDFP 1453 #if ECB_STDFP
… …
1207 1482
1208 return r; 1483 return r;
1209 } 1484 }
1210 1485
1211 /* converts an ieee double/binary64 to a double */ 1486 /* converts an ieee double/binary64 to a double */
1212 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1487 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1213 ecb_function_ double 1488 ecb_function_ ecb_const double
1214 ecb_binary64_to_double (uint64_t x) 1489 ecb_binary64_to_double (uint64_t x)
1215 { 1490 {
1216 double r; 1491 double r;
1217 1492
1218 #if ECB_STDFP 1493 #if ECB_STDFP
… …
1234 1509
1235 r = neg ? -r : r; 1510 r = neg ? -r : r;
1236 #endif 1511 #endif
1237 1512
1238 return r; 1513 return r;
1514 }
1515
1516 /* convert a float to ieee half/binary16 */
1517 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1518 ecb_function_ ecb_const uint16_t
1519 ecb_float_to_binary16 (float x)
1520 {
1521 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1522 }
1523
1524 /* convert an ieee half/binary16 to float */
1525 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1526 ecb_function_ ecb_const float
1527 ecb_binary16_to_float (uint16_t x)
1528 {
1529 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1239 } 1530 }
1240 1531
1241#endif 1532#endif
1242 1533
1243#endif 1534#endif
… …
1268#define inline_size ecb_inline 1559#define inline_size ecb_inline
1269 1560
1270#if EV_FEATURE_CODE 1561#if EV_FEATURE_CODE
1271# define inline_speed ecb_inline 1562# define inline_speed ecb_inline
1272#else 1563#else
1273# define inline_speed static noinline 1564# define inline_speed noinline static
1274#endif 1565#endif
1275 1566
1276#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1567#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1277 1568
1278#if EV_MINPRI == EV_MAXPRI 1569#if EV_MINPRI == EV_MAXPRI
1279# define ABSPRI(w) (((W)w), 0) 1570# define ABSPRI(w) (((W)w), 0)
1280#else 1571#else
1281# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1572# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1282#endif 1573#endif
1283 1574
1284#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1575#define EMPTY /* required for microsofts broken pseudo-c compiler */
1285#define EMPTY2(a,b) /* used to suppress some warnings */
1286 1576
1287typedef ev_watcher *W; 1577typedef ev_watcher *W;
1288typedef ev_watcher_list *WL; 1578typedef ev_watcher_list *WL;
1289typedef ev_watcher_time *WT; 1579typedef ev_watcher_time *WT;
1290 1580
… …
1315# include "ev_win32.c" 1605# include "ev_win32.c"
1316#endif 1606#endif
1317 1607
1318/*****************************************************************************/ 1608/*****************************************************************************/
1319 1609
1610#if EV_USE_LINUXAIO
1611# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1612#endif
1613
1320/* define a suitable floor function (only used by periodics atm) */ 1614/* define a suitable floor function (only used by periodics atm) */
1321 1615
1322#if EV_USE_FLOOR 1616#if EV_USE_FLOOR
1323# include <math.h> 1617# include <math.h>
1324# define ev_floor(v) floor (v) 1618# define ev_floor(v) floor (v)
1325#else 1619#else
1326 1620
1327#include <float.h> 1621#include <float.h>
1328 1622
1329/* a floor() replacement function, should be independent of ev_tstamp type */ 1623/* a floor() replacement function, should be independent of ev_tstamp type */
1624noinline
1330static ev_tstamp noinline 1625static ev_tstamp
1331ev_floor (ev_tstamp v) 1626ev_floor (ev_tstamp v)
1332{ 1627{
1333 /* the choice of shift factor is not terribly important */ 1628 /* the choice of shift factor is not terribly important */
1334#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1629#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1335 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1630 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1367 1662
1368#ifdef __linux 1663#ifdef __linux
1369# include <sys/utsname.h> 1664# include <sys/utsname.h>
1370#endif 1665#endif
1371 1666
1372static unsigned int noinline ecb_cold 1667noinline ecb_cold
1668static unsigned int
1373ev_linux_version (void) 1669ev_linux_version (void)
1374{ 1670{
1375#ifdef __linux 1671#ifdef __linux
1376 unsigned int v = 0; 1672 unsigned int v = 0;
1377 struct utsname buf; 1673 struct utsname buf;
… …
1406} 1702}
1407 1703
1408/*****************************************************************************/ 1704/*****************************************************************************/
1409 1705
1410#if EV_AVOID_STDIO 1706#if EV_AVOID_STDIO
1411static void noinline ecb_cold 1707noinline ecb_cold
1708static void
1412ev_printerr (const char *msg) 1709ev_printerr (const char *msg)
1413{ 1710{
1414 write (STDERR_FILENO, msg, strlen (msg)); 1711 write (STDERR_FILENO, msg, strlen (msg));
1415} 1712}
1416#endif 1713#endif
1417 1714
1418static void (*syserr_cb)(const char *msg) EV_THROW; 1715static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1419 1716
1420void ecb_cold 1717ecb_cold
1718void
1421ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1719ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1422{ 1720{
1423 syserr_cb = cb; 1721 syserr_cb = cb;
1424} 1722}
1425 1723
1426static void noinline ecb_cold 1724noinline ecb_cold
1725static void
1427ev_syserr (const char *msg) 1726ev_syserr (const char *msg)
1428{ 1727{
1429 if (!msg) 1728 if (!msg)
1430 msg = "(libev) system error"; 1729 msg = "(libev) system error";
1431 1730
… …
1444 abort (); 1743 abort ();
1445 } 1744 }
1446} 1745}
1447 1746
1448static void * 1747static void *
1449ev_realloc_emul (void *ptr, long size) EV_THROW 1748ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1450{ 1749{
1451 /* some systems, notably openbsd and darwin, fail to properly 1750 /* some systems, notably openbsd and darwin, fail to properly
1452 * implement realloc (x, 0) (as required by both ansi c-89 and 1751 * implement realloc (x, 0) (as required by both ansi c-89 and
1453 * the single unix specification, so work around them here. 1752 * the single unix specification, so work around them here.
1454 * recently, also (at least) fedora and debian started breaking it, 1753 * recently, also (at least) fedora and debian started breaking it,
… …
1460 1759
1461 free (ptr); 1760 free (ptr);
1462 return 0; 1761 return 0;
1463} 1762}
1464 1763
1465static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1764static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1466 1765
1467void ecb_cold 1766ecb_cold
1767void
1468ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1768ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1469{ 1769{
1470 alloc = cb; 1770 alloc = cb;
1471} 1771}
1472 1772
1473inline_speed void * 1773inline_speed void *
… …
1500typedef struct 1800typedef struct
1501{ 1801{
1502 WL head; 1802 WL head;
1503 unsigned char events; /* the events watched for */ 1803 unsigned char events; /* the events watched for */
1504 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1804 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1505 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1805 unsigned char emask; /* some backends store the actual kernel mask in here */
1506 unsigned char unused; 1806 unsigned char unused;
1507#if EV_USE_EPOLL 1807#if EV_USE_EPOLL
1508 unsigned int egen; /* generation counter to counter epoll bugs */ 1808 unsigned int egen; /* generation counter to counter epoll bugs */
1509#endif 1809#endif
1510#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1810#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1590 1890
1591/*****************************************************************************/ 1891/*****************************************************************************/
1592 1892
1593#ifndef EV_HAVE_EV_TIME 1893#ifndef EV_HAVE_EV_TIME
1594ev_tstamp 1894ev_tstamp
1595ev_time (void) EV_THROW 1895ev_time (void) EV_NOEXCEPT
1596{ 1896{
1597#if EV_USE_REALTIME 1897#if EV_USE_REALTIME
1598 if (expect_true (have_realtime)) 1898 if (expect_true (have_realtime))
1599 { 1899 {
1600 struct timespec ts; 1900 struct timespec ts;
… …
1624 return ev_time (); 1924 return ev_time ();
1625} 1925}
1626 1926
1627#if EV_MULTIPLICITY 1927#if EV_MULTIPLICITY
1628ev_tstamp 1928ev_tstamp
1629ev_now (EV_P) EV_THROW 1929ev_now (EV_P) EV_NOEXCEPT
1630{ 1930{
1631 return ev_rt_now; 1931 return ev_rt_now;
1632} 1932}
1633#endif 1933#endif
1634 1934
1635void 1935void
1636ev_sleep (ev_tstamp delay) EV_THROW 1936ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1637{ 1937{
1638 if (delay > 0.) 1938 if (delay > 0.)
1639 { 1939 {
1640#if EV_USE_NANOSLEEP 1940#if EV_USE_NANOSLEEP
1641 struct timespec ts; 1941 struct timespec ts;
1642 1942
1643 EV_TS_SET (ts, delay); 1943 EV_TS_SET (ts, delay);
1644 nanosleep (&ts, 0); 1944 nanosleep (&ts, 0);
1645#elif defined _WIN32 1945#elif defined _WIN32
1946 /* maybe this should round up, as ms is very low resolution */
1947 /* compared to select (µs) or nanosleep (ns) */
1646 Sleep ((unsigned long)(delay * 1e3)); 1948 Sleep ((unsigned long)(delay * 1e3));
1647#else 1949#else
1648 struct timeval tv; 1950 struct timeval tv;
1649 1951
1650 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1952 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1681 } 1983 }
1682 1984
1683 return ncur; 1985 return ncur;
1684} 1986}
1685 1987
1686static void * noinline ecb_cold 1988noinline ecb_cold
1989static void *
1687array_realloc (int elem, void *base, int *cur, int cnt) 1990array_realloc (int elem, void *base, int *cur, int cnt)
1688{ 1991{
1689 *cur = array_nextsize (elem, *cur, cnt); 1992 *cur = array_nextsize (elem, *cur, cnt);
1690 return ev_realloc (base, elem * *cur); 1993 return ev_realloc (base, elem * *cur);
1691} 1994}
1692 1995
1996#define array_needsize_noinit(base,offset,count)
1997
1693#define array_init_zero(base,count) \ 1998#define array_needsize_zerofill(base,offset,count) \
1694 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1999 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1695 2000
1696#define array_needsize(type,base,cur,cnt,init) \ 2001#define array_needsize(type,base,cur,cnt,init) \
1697 if (expect_false ((cnt) > (cur))) \ 2002 if (expect_false ((cnt) > (cur))) \
1698 { \ 2003 { \
1699 int ecb_unused ocur_ = (cur); \ 2004 ecb_unused int ocur_ = (cur); \
1700 (base) = (type *)array_realloc \ 2005 (base) = (type *)array_realloc \
1701 (sizeof (type), (base), &(cur), (cnt)); \ 2006 (sizeof (type), (base), &(cur), (cnt)); \
1702 init ((base) + (ocur_), (cur) - ocur_); \ 2007 init ((base), ocur_, ((cur) - ocur_)); \
1703 } 2008 }
1704 2009
1705#if 0 2010#if 0
1706#define array_slim(type,stem) \ 2011#define array_slim(type,stem) \
1707 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2012 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1716 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2021 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1717 2022
1718/*****************************************************************************/ 2023/*****************************************************************************/
1719 2024
1720/* dummy callback for pending events */ 2025/* dummy callback for pending events */
1721static void noinline 2026noinline
2027static void
1722pendingcb (EV_P_ ev_prepare *w, int revents) 2028pendingcb (EV_P_ ev_prepare *w, int revents)
1723{ 2029{
1724} 2030}
1725 2031
1726void noinline 2032noinline
2033void
1727ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2034ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1728{ 2035{
1729 W w_ = (W)w; 2036 W w_ = (W)w;
1730 int pri = ABSPRI (w_); 2037 int pri = ABSPRI (w_);
1731 2038
1732 if (expect_false (w_->pending)) 2039 if (expect_false (w_->pending))
1733 pendings [pri][w_->pending - 1].events |= revents; 2040 pendings [pri][w_->pending - 1].events |= revents;
1734 else 2041 else
1735 { 2042 {
1736 w_->pending = ++pendingcnt [pri]; 2043 w_->pending = ++pendingcnt [pri];
1737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2044 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1738 pendings [pri][w_->pending - 1].w = w_; 2045 pendings [pri][w_->pending - 1].w = w_;
1739 pendings [pri][w_->pending - 1].events = revents; 2046 pendings [pri][w_->pending - 1].events = revents;
1740 } 2047 }
1741 2048
1742 pendingpri = NUMPRI - 1; 2049 pendingpri = NUMPRI - 1;
1743} 2050}
1744 2051
1745inline_speed void 2052inline_speed void
1746feed_reverse (EV_P_ W w) 2053feed_reverse (EV_P_ W w)
1747{ 2054{
1748 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2055 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1749 rfeeds [rfeedcnt++] = w; 2056 rfeeds [rfeedcnt++] = w;
1750} 2057}
1751 2058
1752inline_size void 2059inline_size void
1753feed_reverse_done (EV_P_ int revents) 2060feed_reverse_done (EV_P_ int revents)
… …
1793 if (expect_true (!anfd->reify)) 2100 if (expect_true (!anfd->reify))
1794 fd_event_nocheck (EV_A_ fd, revents); 2101 fd_event_nocheck (EV_A_ fd, revents);
1795} 2102}
1796 2103
1797void 2104void
1798ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2105ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1799{ 2106{
1800 if (fd >= 0 && fd < anfdmax) 2107 if (fd >= 0 && fd < anfdmax)
1801 fd_event_nocheck (EV_A_ fd, revents); 2108 fd_event_nocheck (EV_A_ fd, revents);
1802} 2109}
1803 2110
… …
1840 ev_io *w; 2147 ev_io *w;
1841 2148
1842 unsigned char o_events = anfd->events; 2149 unsigned char o_events = anfd->events;
1843 unsigned char o_reify = anfd->reify; 2150 unsigned char o_reify = anfd->reify;
1844 2151
1845 anfd->reify = 0; 2152 anfd->reify = 0;
1846 2153
1847 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1848 { 2155 {
1849 anfd->events = 0; 2156 anfd->events = 0;
1850 2157
… …
1861 2168
1862 fdchangecnt = 0; 2169 fdchangecnt = 0;
1863} 2170}
1864 2171
1865/* something about the given fd changed */ 2172/* something about the given fd changed */
1866inline_size void 2173inline_size
2174void
1867fd_change (EV_P_ int fd, int flags) 2175fd_change (EV_P_ int fd, int flags)
1868{ 2176{
1869 unsigned char reify = anfds [fd].reify; 2177 unsigned char reify = anfds [fd].reify;
1870 anfds [fd].reify |= flags; 2178 anfds [fd].reify |= flags;
1871 2179
1872 if (expect_true (!reify)) 2180 if (expect_true (!reify))
1873 { 2181 {
1874 ++fdchangecnt; 2182 ++fdchangecnt;
1875 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2183 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1876 fdchanges [fdchangecnt - 1] = fd; 2184 fdchanges [fdchangecnt - 1] = fd;
1877 } 2185 }
1878} 2186}
1879 2187
1880/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2188/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1881inline_speed void ecb_cold 2189inline_speed ecb_cold void
1882fd_kill (EV_P_ int fd) 2190fd_kill (EV_P_ int fd)
1883{ 2191{
1884 ev_io *w; 2192 ev_io *w;
1885 2193
1886 while ((w = (ev_io *)anfds [fd].head)) 2194 while ((w = (ev_io *)anfds [fd].head))
… …
1889 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2197 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1890 } 2198 }
1891} 2199}
1892 2200
1893/* check whether the given fd is actually valid, for error recovery */ 2201/* check whether the given fd is actually valid, for error recovery */
1894inline_size int ecb_cold 2202inline_size ecb_cold int
1895fd_valid (int fd) 2203fd_valid (int fd)
1896{ 2204{
1897#ifdef _WIN32 2205#ifdef _WIN32
1898 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2206 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1899#else 2207#else
1900 return fcntl (fd, F_GETFD) != -1; 2208 return fcntl (fd, F_GETFD) != -1;
1901#endif 2209#endif
1902} 2210}
1903 2211
1904/* called on EBADF to verify fds */ 2212/* called on EBADF to verify fds */
1905static void noinline ecb_cold 2213noinline ecb_cold
2214static void
1906fd_ebadf (EV_P) 2215fd_ebadf (EV_P)
1907{ 2216{
1908 int fd; 2217 int fd;
1909 2218
1910 for (fd = 0; fd < anfdmax; ++fd) 2219 for (fd = 0; fd < anfdmax; ++fd)
… …
1912 if (!fd_valid (fd) && errno == EBADF) 2221 if (!fd_valid (fd) && errno == EBADF)
1913 fd_kill (EV_A_ fd); 2222 fd_kill (EV_A_ fd);
1914} 2223}
1915 2224
1916/* called on ENOMEM in select/poll to kill some fds and retry */ 2225/* called on ENOMEM in select/poll to kill some fds and retry */
1917static void noinline ecb_cold 2226noinline ecb_cold
2227static void
1918fd_enomem (EV_P) 2228fd_enomem (EV_P)
1919{ 2229{
1920 int fd; 2230 int fd;
1921 2231
1922 for (fd = anfdmax; fd--; ) 2232 for (fd = anfdmax; fd--; )
… …
1926 break; 2236 break;
1927 } 2237 }
1928} 2238}
1929 2239
1930/* usually called after fork if backend needs to re-arm all fds from scratch */ 2240/* usually called after fork if backend needs to re-arm all fds from scratch */
1931static void noinline 2241noinline
2242static void
1932fd_rearm_all (EV_P) 2243fd_rearm_all (EV_P)
1933{ 2244{
1934 int fd; 2245 int fd;
1935 2246
1936 for (fd = 0; fd < anfdmax; ++fd) 2247 for (fd = 0; fd < anfdmax; ++fd)
… …
2117 2428
2118/*****************************************************************************/ 2429/*****************************************************************************/
2119 2430
2120#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2431#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2121 2432
2122static void noinline ecb_cold 2433noinline ecb_cold
2434static void
2123evpipe_init (EV_P) 2435evpipe_init (EV_P)
2124{ 2436{
2125 if (!ev_is_active (&pipe_w)) 2437 if (!ev_is_active (&pipe_w))
2126 { 2438 {
2127 int fds [2]; 2439 int fds [2];
… …
2198#endif 2510#endif
2199 { 2511 {
2200#ifdef _WIN32 2512#ifdef _WIN32
2201 WSABUF buf; 2513 WSABUF buf;
2202 DWORD sent; 2514 DWORD sent;
2203 buf.buf = &buf; 2515 buf.buf = (char *)&buf;
2204 buf.len = 1; 2516 buf.len = 1;
2205 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2517 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2206#else 2518#else
2207 write (evpipe [1], &(evpipe [1]), 1); 2519 write (evpipe [1], &(evpipe [1]), 1);
2208#endif 2520#endif
… …
2280} 2592}
2281 2593
2282/*****************************************************************************/ 2594/*****************************************************************************/
2283 2595
2284void 2596void
2285ev_feed_signal (int signum) EV_THROW 2597ev_feed_signal (int signum) EV_NOEXCEPT
2286{ 2598{
2287#if EV_MULTIPLICITY 2599#if EV_MULTIPLICITY
2288 EV_P; 2600 EV_P;
2289 ECB_MEMORY_FENCE_ACQUIRE; 2601 ECB_MEMORY_FENCE_ACQUIRE;
2290 EV_A = signals [signum - 1].loop; 2602 EV_A = signals [signum - 1].loop;
… …
2305#endif 2617#endif
2306 2618
2307 ev_feed_signal (signum); 2619 ev_feed_signal (signum);
2308} 2620}
2309 2621
2310void noinline 2622noinline
2623void
2311ev_feed_signal_event (EV_P_ int signum) EV_THROW 2624ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2312{ 2625{
2313 WL w; 2626 WL w;
2314 2627
2315 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2628 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2316 return; 2629 return;
… …
2425# include "ev_kqueue.c" 2738# include "ev_kqueue.c"
2426#endif 2739#endif
2427#if EV_USE_EPOLL 2740#if EV_USE_EPOLL
2428# include "ev_epoll.c" 2741# include "ev_epoll.c"
2429#endif 2742#endif
2743#if EV_USE_LINUXAIO
2744# include "ev_linuxaio.c"
2745#endif
2430#if EV_USE_POLL 2746#if EV_USE_POLL
2431# include "ev_poll.c" 2747# include "ev_poll.c"
2432#endif 2748#endif
2433#if EV_USE_SELECT 2749#if EV_USE_SELECT
2434# include "ev_select.c" 2750# include "ev_select.c"
2435#endif 2751#endif
2436 2752
2437int ecb_cold 2753ecb_cold int
2438ev_version_major (void) EV_THROW 2754ev_version_major (void) EV_NOEXCEPT
2439{ 2755{
2440 return EV_VERSION_MAJOR; 2756 return EV_VERSION_MAJOR;
2441} 2757}
2442 2758
2443int ecb_cold 2759ecb_cold int
2444ev_version_minor (void) EV_THROW 2760ev_version_minor (void) EV_NOEXCEPT
2445{ 2761{
2446 return EV_VERSION_MINOR; 2762 return EV_VERSION_MINOR;
2447} 2763}
2448 2764
2449/* return true if we are running with elevated privileges and should ignore env variables */ 2765/* return true if we are running with elevated privileges and should ignore env variables */
2450int inline_size ecb_cold 2766inline_size ecb_cold int
2451enable_secure (void) 2767enable_secure (void)
2452{ 2768{
2453#ifdef _WIN32 2769#ifdef _WIN32
2454 return 0; 2770 return 0;
2455#else 2771#else
2456 return getuid () != geteuid () 2772 return getuid () != geteuid ()
2457 || getgid () != getegid (); 2773 || getgid () != getegid ();
2458#endif 2774#endif
2459} 2775}
2460 2776
2461unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2462ev_supported_backends (void) EV_THROW 2779ev_supported_backends (void) EV_NOEXCEPT
2463{ 2780{
2464 unsigned int flags = 0; 2781 unsigned int flags = 0;
2465 2782
2466 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2783 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2467 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2784 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2468 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2785 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2786 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2469 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2787 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2470 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2788 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2471 2789
2472 return flags; 2790 return flags;
2473} 2791}
2474 2792
2475unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2476ev_recommended_backends (void) EV_THROW 2795ev_recommended_backends (void) EV_NOEXCEPT
2477{ 2796{
2478 unsigned int flags = ev_supported_backends (); 2797 unsigned int flags = ev_supported_backends ();
2479 2798
2480#ifndef __NetBSD__ 2799#ifndef __NetBSD__
2481 /* kqueue is borked on everything but netbsd apparently */ 2800 /* kqueue is borked on everything but netbsd apparently */
… …
2489#endif 2808#endif
2490#ifdef __FreeBSD__ 2809#ifdef __FreeBSD__
2491 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2810 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2492#endif 2811#endif
2493 2812
2813 /* TODO: linuxaio is very experimental */
2814#if !EV_RECOMMEND_LINUXAIO
2815 flags &= ~EVBACKEND_LINUXAIO;
2816#endif
2817
2494 return flags; 2818 return flags;
2495} 2819}
2496 2820
2497unsigned int ecb_cold 2821ecb_cold
2822unsigned int
2498ev_embeddable_backends (void) EV_THROW 2823ev_embeddable_backends (void) EV_NOEXCEPT
2499{ 2824{
2500 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2825 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2501 2826
2502 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2827 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2503 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2828 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2505 2830
2506 return flags; 2831 return flags;
2507} 2832}
2508 2833
2509unsigned int 2834unsigned int
2510ev_backend (EV_P) EV_THROW 2835ev_backend (EV_P) EV_NOEXCEPT
2511{ 2836{
2512 return backend; 2837 return backend;
2513} 2838}
2514 2839
2515#if EV_FEATURE_API 2840#if EV_FEATURE_API
2516unsigned int 2841unsigned int
2517ev_iteration (EV_P) EV_THROW 2842ev_iteration (EV_P) EV_NOEXCEPT
2518{ 2843{
2519 return loop_count; 2844 return loop_count;
2520} 2845}
2521 2846
2522unsigned int 2847unsigned int
2523ev_depth (EV_P) EV_THROW 2848ev_depth (EV_P) EV_NOEXCEPT
2524{ 2849{
2525 return loop_depth; 2850 return loop_depth;
2526} 2851}
2527 2852
2528void 2853void
2529ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2854ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2530{ 2855{
2531 io_blocktime = interval; 2856 io_blocktime = interval;
2532} 2857}
2533 2858
2534void 2859void
2535ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2860ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2536{ 2861{
2537 timeout_blocktime = interval; 2862 timeout_blocktime = interval;
2538} 2863}
2539 2864
2540void 2865void
2541ev_set_userdata (EV_P_ void *data) EV_THROW 2866ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2542{ 2867{
2543 userdata = data; 2868 userdata = data;
2544} 2869}
2545 2870
2546void * 2871void *
2547ev_userdata (EV_P) EV_THROW 2872ev_userdata (EV_P) EV_NOEXCEPT
2548{ 2873{
2549 return userdata; 2874 return userdata;
2550} 2875}
2551 2876
2552void 2877void
2553ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2878ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2554{ 2879{
2555 invoke_cb = invoke_pending_cb; 2880 invoke_cb = invoke_pending_cb;
2556} 2881}
2557 2882
2558void 2883void
2559ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2884ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2560{ 2885{
2561 release_cb = release; 2886 release_cb = release;
2562 acquire_cb = acquire; 2887 acquire_cb = acquire;
2563} 2888}
2564#endif 2889#endif
2565 2890
2566/* initialise a loop structure, must be zero-initialised */ 2891/* initialise a loop structure, must be zero-initialised */
2567static void noinline ecb_cold 2892noinline ecb_cold
2893static void
2568loop_init (EV_P_ unsigned int flags) EV_THROW 2894loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2569{ 2895{
2570 if (!backend) 2896 if (!backend)
2571 { 2897 {
2572 origflags = flags; 2898 origflags = flags;
2573 2899
… …
2631 2957
2632 if (!(flags & EVBACKEND_MASK)) 2958 if (!(flags & EVBACKEND_MASK))
2633 flags |= ev_recommended_backends (); 2959 flags |= ev_recommended_backends ();
2634 2960
2635#if EV_USE_IOCP 2961#if EV_USE_IOCP
2636 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2962 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2637#endif 2963#endif
2638#if EV_USE_PORT 2964#if EV_USE_PORT
2639 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2965 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2640#endif 2966#endif
2641#if EV_USE_KQUEUE 2967#if EV_USE_KQUEUE
2642 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2968 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2969#endif
2970#if EV_USE_LINUXAIO
2971 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2643#endif 2972#endif
2644#if EV_USE_EPOLL 2973#if EV_USE_EPOLL
2645 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2974 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2646#endif 2975#endif
2647#if EV_USE_POLL 2976#if EV_USE_POLL
2648 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2977 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2649#endif 2978#endif
2650#if EV_USE_SELECT 2979#if EV_USE_SELECT
2651 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2980 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2652#endif 2981#endif
2653 2982
2654 ev_prepare_init (&pending_w, pendingcb); 2983 ev_prepare_init (&pending_w, pendingcb);
2655 2984
2656#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2985#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2659#endif 2988#endif
2660 } 2989 }
2661} 2990}
2662 2991
2663/* free up a loop structure */ 2992/* free up a loop structure */
2664void ecb_cold 2993ecb_cold
2994void
2665ev_loop_destroy (EV_P) 2995ev_loop_destroy (EV_P)
2666{ 2996{
2667 int i; 2997 int i;
2668 2998
2669#if EV_MULTIPLICITY 2999#if EV_MULTIPLICITY
… …
2710 3040
2711 if (backend_fd >= 0) 3041 if (backend_fd >= 0)
2712 close (backend_fd); 3042 close (backend_fd);
2713 3043
2714#if EV_USE_IOCP 3044#if EV_USE_IOCP
2715 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3045 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2716#endif 3046#endif
2717#if EV_USE_PORT 3047#if EV_USE_PORT
2718 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3048 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2719#endif 3049#endif
2720#if EV_USE_KQUEUE 3050#if EV_USE_KQUEUE
2721 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3051 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3052#endif
3053#if EV_USE_LINUXAIO
3054 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2722#endif 3055#endif
2723#if EV_USE_EPOLL 3056#if EV_USE_EPOLL
2724 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3057 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2725#endif 3058#endif
2726#if EV_USE_POLL 3059#if EV_USE_POLL
2727 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3060 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2728#endif 3061#endif
2729#if EV_USE_SELECT 3062#if EV_USE_SELECT
2730 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3063 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2731#endif 3064#endif
2732 3065
2733 for (i = NUMPRI; i--; ) 3066 for (i = NUMPRI; i--; )
2734 { 3067 {
2735 array_free (pending, [i]); 3068 array_free (pending, [i]);
… …
2777 3110
2778inline_size void 3111inline_size void
2779loop_fork (EV_P) 3112loop_fork (EV_P)
2780{ 3113{
2781#if EV_USE_PORT 3114#if EV_USE_PORT
2782 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3115 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2783#endif 3116#endif
2784#if EV_USE_KQUEUE 3117#if EV_USE_KQUEUE
2785 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3118 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3119#endif
3120#if EV_USE_LINUXAIO
3121 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2786#endif 3122#endif
2787#if EV_USE_EPOLL 3123#if EV_USE_EPOLL
2788 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3124 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2789#endif 3125#endif
2790#if EV_USE_INOTIFY 3126#if EV_USE_INOTIFY
2791 infy_fork (EV_A); 3127 infy_fork (EV_A);
2792#endif 3128#endif
2793 3129
2794#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2795 if (ev_is_active (&pipe_w)) 3131 if (ev_is_active (&pipe_w) && postfork != 2)
2796 { 3132 {
2797 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3133 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2798 3134
2799 ev_ref (EV_A); 3135 ev_ref (EV_A);
2800 ev_io_stop (EV_A_ &pipe_w); 3136 ev_io_stop (EV_A_ &pipe_w);
… …
2811 postfork = 0; 3147 postfork = 0;
2812} 3148}
2813 3149
2814#if EV_MULTIPLICITY 3150#if EV_MULTIPLICITY
2815 3151
3152ecb_cold
2816struct ev_loop * ecb_cold 3153struct ev_loop *
2817ev_loop_new (unsigned int flags) EV_THROW 3154ev_loop_new (unsigned int flags) EV_NOEXCEPT
2818{ 3155{
2819 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3156 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2820 3157
2821 memset (EV_A, 0, sizeof (struct ev_loop)); 3158 memset (EV_A, 0, sizeof (struct ev_loop));
2822 loop_init (EV_A_ flags); 3159 loop_init (EV_A_ flags);
… …
2829} 3166}
2830 3167
2831#endif /* multiplicity */ 3168#endif /* multiplicity */
2832 3169
2833#if EV_VERIFY 3170#if EV_VERIFY
2834static void noinline ecb_cold 3171noinline ecb_cold
3172static void
2835verify_watcher (EV_P_ W w) 3173verify_watcher (EV_P_ W w)
2836{ 3174{
2837 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3175 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2838 3176
2839 if (w->pending) 3177 if (w->pending)
2840 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3178 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2841} 3179}
2842 3180
2843static void noinline ecb_cold 3181noinline ecb_cold
3182static void
2844verify_heap (EV_P_ ANHE *heap, int N) 3183verify_heap (EV_P_ ANHE *heap, int N)
2845{ 3184{
2846 int i; 3185 int i;
2847 3186
2848 for (i = HEAP0; i < N + HEAP0; ++i) 3187 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2853 3192
2854 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3193 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2855 } 3194 }
2856} 3195}
2857 3196
2858static void noinline ecb_cold 3197noinline ecb_cold
3198static void
2859array_verify (EV_P_ W *ws, int cnt) 3199array_verify (EV_P_ W *ws, int cnt)
2860{ 3200{
2861 while (cnt--) 3201 while (cnt--)
2862 { 3202 {
2863 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3203 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2866} 3206}
2867#endif 3207#endif
2868 3208
2869#if EV_FEATURE_API 3209#if EV_FEATURE_API
2870void ecb_cold 3210void ecb_cold
2871ev_verify (EV_P) EV_THROW 3211ev_verify (EV_P) EV_NOEXCEPT
2872{ 3212{
2873#if EV_VERIFY 3213#if EV_VERIFY
2874 int i; 3214 int i;
2875 WL w, w2; 3215 WL w, w2;
2876 3216
… …
2952#endif 3292#endif
2953} 3293}
2954#endif 3294#endif
2955 3295
2956#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
3297ecb_cold
2957struct ev_loop * ecb_cold 3298struct ev_loop *
2958#else 3299#else
2959int 3300int
2960#endif 3301#endif
2961ev_default_loop (unsigned int flags) EV_THROW 3302ev_default_loop (unsigned int flags) EV_NOEXCEPT
2962{ 3303{
2963 if (!ev_default_loop_ptr) 3304 if (!ev_default_loop_ptr)
2964 { 3305 {
2965#if EV_MULTIPLICITY 3306#if EV_MULTIPLICITY
2966 EV_P = ev_default_loop_ptr = &default_loop_struct; 3307 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2985 3326
2986 return ev_default_loop_ptr; 3327 return ev_default_loop_ptr;
2987} 3328}
2988 3329
2989void 3330void
2990ev_loop_fork (EV_P) EV_THROW 3331ev_loop_fork (EV_P) EV_NOEXCEPT
2991{ 3332{
2992 postfork = 1; 3333 postfork = 1;
2993} 3334}
2994 3335
2995/*****************************************************************************/ 3336/*****************************************************************************/
… …
2999{ 3340{
3000 EV_CB_INVOKE ((W)w, revents); 3341 EV_CB_INVOKE ((W)w, revents);
3001} 3342}
3002 3343
3003unsigned int 3344unsigned int
3004ev_pending_count (EV_P) EV_THROW 3345ev_pending_count (EV_P) EV_NOEXCEPT
3005{ 3346{
3006 int pri; 3347 int pri;
3007 unsigned int count = 0; 3348 unsigned int count = 0;
3008 3349
3009 for (pri = NUMPRI; pri--; ) 3350 for (pri = NUMPRI; pri--; )
3010 count += pendingcnt [pri]; 3351 count += pendingcnt [pri];
3011 3352
3012 return count; 3353 return count;
3013} 3354}
3014 3355
3015void noinline 3356noinline
3357void
3016ev_invoke_pending (EV_P) 3358ev_invoke_pending (EV_P)
3017{ 3359{
3018 pendingpri = NUMPRI; 3360 pendingpri = NUMPRI;
3019 3361
3020 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3362 do
3021 { 3363 {
3022 --pendingpri; 3364 --pendingpri;
3023 3365
3366 /* pendingpri possibly gets modified in the inner loop */
3024 while (pendingcnt [pendingpri]) 3367 while (pendingcnt [pendingpri])
3025 { 3368 {
3026 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3369 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3027 3370
3028 p->w->pending = 0; 3371 p->w->pending = 0;
3029 EV_CB_INVOKE (p->w, p->events); 3372 EV_CB_INVOKE (p->w, p->events);
3030 EV_FREQUENT_CHECK; 3373 EV_FREQUENT_CHECK;
3031 } 3374 }
3032 } 3375 }
3376 while (pendingpri);
3033} 3377}
3034 3378
3035#if EV_IDLE_ENABLE 3379#if EV_IDLE_ENABLE
3036/* make idle watchers pending. this handles the "call-idle */ 3380/* make idle watchers pending. this handles the "call-idle */
3037/* only when higher priorities are idle" logic */ 3381/* only when higher priorities are idle" logic */
… …
3095 } 3439 }
3096} 3440}
3097 3441
3098#if EV_PERIODIC_ENABLE 3442#if EV_PERIODIC_ENABLE
3099 3443
3100static void noinline 3444noinline
3445static void
3101periodic_recalc (EV_P_ ev_periodic *w) 3446periodic_recalc (EV_P_ ev_periodic *w)
3102{ 3447{
3103 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3448 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3104 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3449 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3105 3450
… …
3163 } 3508 }
3164} 3509}
3165 3510
3166/* simply recalculate all periodics */ 3511/* simply recalculate all periodics */
3167/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3512/* TODO: maybe ensure that at least one event happens when jumping forward? */
3168static void noinline ecb_cold 3513noinline ecb_cold
3514static void
3169periodics_reschedule (EV_P) 3515periodics_reschedule (EV_P)
3170{ 3516{
3171 int i; 3517 int i;
3172 3518
3173 /* adjust periodics after time jump */ 3519 /* adjust periodics after time jump */
… …
3186 reheap (periodics, periodiccnt); 3532 reheap (periodics, periodiccnt);
3187} 3533}
3188#endif 3534#endif
3189 3535
3190/* adjust all timers by a given offset */ 3536/* adjust all timers by a given offset */
3191static void noinline ecb_cold 3537noinline ecb_cold
3538static void
3192timers_reschedule (EV_P_ ev_tstamp adjust) 3539timers_reschedule (EV_P_ ev_tstamp adjust)
3193{ 3540{
3194 int i; 3541 int i;
3195 3542
3196 for (i = 0; i < timercnt; ++i) 3543 for (i = 0; i < timercnt; ++i)
… …
3443 3790
3444 return activecnt; 3791 return activecnt;
3445} 3792}
3446 3793
3447void 3794void
3448ev_break (EV_P_ int how) EV_THROW 3795ev_break (EV_P_ int how) EV_NOEXCEPT
3449{ 3796{
3450 loop_done = how; 3797 loop_done = how;
3451} 3798}
3452 3799
3453void 3800void
3454ev_ref (EV_P) EV_THROW 3801ev_ref (EV_P) EV_NOEXCEPT
3455{ 3802{
3456 ++activecnt; 3803 ++activecnt;
3457} 3804}
3458 3805
3459void 3806void
3460ev_unref (EV_P) EV_THROW 3807ev_unref (EV_P) EV_NOEXCEPT
3461{ 3808{
3462 --activecnt; 3809 --activecnt;
3463} 3810}
3464 3811
3465void 3812void
3466ev_now_update (EV_P) EV_THROW 3813ev_now_update (EV_P) EV_NOEXCEPT
3467{ 3814{
3468 time_update (EV_A_ 1e100); 3815 time_update (EV_A_ 1e100);
3469} 3816}
3470 3817
3471void 3818void
3472ev_suspend (EV_P) EV_THROW 3819ev_suspend (EV_P) EV_NOEXCEPT
3473{ 3820{
3474 ev_now_update (EV_A); 3821 ev_now_update (EV_A);
3475} 3822}
3476 3823
3477void 3824void
3478ev_resume (EV_P) EV_THROW 3825ev_resume (EV_P) EV_NOEXCEPT
3479{ 3826{
3480 ev_tstamp mn_prev = mn_now; 3827 ev_tstamp mn_prev = mn_now;
3481 3828
3482 ev_now_update (EV_A); 3829 ev_now_update (EV_A);
3483 timers_reschedule (EV_A_ mn_now - mn_prev); 3830 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3522 w->pending = 0; 3869 w->pending = 0;
3523 } 3870 }
3524} 3871}
3525 3872
3526int 3873int
3527ev_clear_pending (EV_P_ void *w) EV_THROW 3874ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3528{ 3875{
3529 W w_ = (W)w; 3876 W w_ = (W)w;
3530 int pending = w_->pending; 3877 int pending = w_->pending;
3531 3878
3532 if (expect_true (pending)) 3879 if (expect_true (pending))
… …
3564 w->active = 0; 3911 w->active = 0;
3565} 3912}
3566 3913
3567/*****************************************************************************/ 3914/*****************************************************************************/
3568 3915
3569void noinline 3916noinline
3917void
3570ev_io_start (EV_P_ ev_io *w) EV_THROW 3918ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3571{ 3919{
3572 int fd = w->fd; 3920 int fd = w->fd;
3573 3921
3574 if (expect_false (ev_is_active (w))) 3922 if (expect_false (ev_is_active (w)))
3575 return; 3923 return;
3576 3924
3577 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3925 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3578 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3926 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3579 3927
3928#if EV_VERIFY >= 2
3929 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
3930#endif
3580 EV_FREQUENT_CHECK; 3931 EV_FREQUENT_CHECK;
3581 3932
3582 ev_start (EV_A_ (W)w, 1); 3933 ev_start (EV_A_ (W)w, 1);
3583 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3934 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3584 wlist_add (&anfds[fd].head, (WL)w); 3935 wlist_add (&anfds[fd].head, (WL)w);
3585 3936
3586 /* common bug, apparently */ 3937 /* common bug, apparently */
3587 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3938 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3588 3939
… …
3590 w->events &= ~EV__IOFDSET; 3941 w->events &= ~EV__IOFDSET;
3591 3942
3592 EV_FREQUENT_CHECK; 3943 EV_FREQUENT_CHECK;
3593} 3944}
3594 3945
3595void noinline 3946noinline
3947void
3596ev_io_stop (EV_P_ ev_io *w) EV_THROW 3948ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3597{ 3949{
3598 clear_pending (EV_A_ (W)w); 3950 clear_pending (EV_A_ (W)w);
3599 if (expect_false (!ev_is_active (w))) 3951 if (expect_false (!ev_is_active (w)))
3600 return; 3952 return;
3601 3953
3602 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3954 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3603 3955
3956#if EV_VERIFY >= 2
3957 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
3958#endif
3604 EV_FREQUENT_CHECK; 3959 EV_FREQUENT_CHECK;
3605 3960
3606 wlist_del (&anfds[w->fd].head, (WL)w); 3961 wlist_del (&anfds[w->fd].head, (WL)w);
3607 ev_stop (EV_A_ (W)w); 3962 ev_stop (EV_A_ (W)w);
3608 3963
3609 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3964 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3610 3965
3611 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3612} 3967}
3613 3968
3614void noinline 3969noinline
3970void
3615ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3616{ 3972{
3617 if (expect_false (ev_is_active (w))) 3973 if (expect_false (ev_is_active (w)))
3618 return; 3974 return;
3619 3975
3620 ev_at (w) += mn_now; 3976 ev_at (w) += mn_now;
… …
3623 3979
3624 EV_FREQUENT_CHECK; 3980 EV_FREQUENT_CHECK;
3625 3981
3626 ++timercnt; 3982 ++timercnt;
3627 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3983 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3628 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3984 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3629 ANHE_w (timers [ev_active (w)]) = (WT)w; 3985 ANHE_w (timers [ev_active (w)]) = (WT)w;
3630 ANHE_at_cache (timers [ev_active (w)]); 3986 ANHE_at_cache (timers [ev_active (w)]);
3631 upheap (timers, ev_active (w)); 3987 upheap (timers, ev_active (w));
3632 3988
3633 EV_FREQUENT_CHECK; 3989 EV_FREQUENT_CHECK;
3634 3990
3635 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3991 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3636} 3992}
3637 3993
3638void noinline 3994noinline
3995void
3639ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3996ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3640{ 3997{
3641 clear_pending (EV_A_ (W)w); 3998 clear_pending (EV_A_ (W)w);
3642 if (expect_false (!ev_is_active (w))) 3999 if (expect_false (!ev_is_active (w)))
3643 return; 4000 return;
3644 4001
… …
3663 ev_stop (EV_A_ (W)w); 4020 ev_stop (EV_A_ (W)w);
3664 4021
3665 EV_FREQUENT_CHECK; 4022 EV_FREQUENT_CHECK;
3666} 4023}
3667 4024
3668void noinline 4025noinline
4026void
3669ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4027ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3670{ 4028{
3671 EV_FREQUENT_CHECK; 4029 EV_FREQUENT_CHECK;
3672 4030
3673 clear_pending (EV_A_ (W)w); 4031 clear_pending (EV_A_ (W)w);
3674 4032
… …
3691 4049
3692 EV_FREQUENT_CHECK; 4050 EV_FREQUENT_CHECK;
3693} 4051}
3694 4052
3695ev_tstamp 4053ev_tstamp
3696ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4054ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3697{ 4055{
3698 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4056 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3699} 4057}
3700 4058
3701#if EV_PERIODIC_ENABLE 4059#if EV_PERIODIC_ENABLE
3702void noinline 4060noinline
4061void
3703ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4062ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3704{ 4063{
3705 if (expect_false (ev_is_active (w))) 4064 if (expect_false (ev_is_active (w)))
3706 return; 4065 return;
3707 4066
3708 if (w->reschedule_cb) 4067 if (w->reschedule_cb)
… …
3717 4076
3718 EV_FREQUENT_CHECK; 4077 EV_FREQUENT_CHECK;
3719 4078
3720 ++periodiccnt; 4079 ++periodiccnt;
3721 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4080 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3722 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4081 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3723 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4082 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3724 ANHE_at_cache (periodics [ev_active (w)]); 4083 ANHE_at_cache (periodics [ev_active (w)]);
3725 upheap (periodics, ev_active (w)); 4084 upheap (periodics, ev_active (w));
3726 4085
3727 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3728 4087
3729 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4088 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3730} 4089}
3731 4090
3732void noinline 4091noinline
4092void
3733ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4093ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3734{ 4094{
3735 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3736 if (expect_false (!ev_is_active (w))) 4096 if (expect_false (!ev_is_active (w)))
3737 return; 4097 return;
3738 4098
… …
3755 ev_stop (EV_A_ (W)w); 4115 ev_stop (EV_A_ (W)w);
3756 4116
3757 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3758} 4118}
3759 4119
3760void noinline 4120noinline
4121void
3761ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4122ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3762{ 4123{
3763 /* TODO: use adjustheap and recalculation */ 4124 /* TODO: use adjustheap and recalculation */
3764 ev_periodic_stop (EV_A_ w); 4125 ev_periodic_stop (EV_A_ w);
3765 ev_periodic_start (EV_A_ w); 4126 ev_periodic_start (EV_A_ w);
3766} 4127}
… …
3770# define SA_RESTART 0 4131# define SA_RESTART 0
3771#endif 4132#endif
3772 4133
3773#if EV_SIGNAL_ENABLE 4134#if EV_SIGNAL_ENABLE
3774 4135
3775void noinline 4136noinline
4137void
3776ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4138ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3777{ 4139{
3778 if (expect_false (ev_is_active (w))) 4140 if (expect_false (ev_is_active (w)))
3779 return; 4141 return;
3780 4142
3781 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4143 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3852 } 4214 }
3853 4215
3854 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3855} 4217}
3856 4218
3857void noinline 4219noinline
4220void
3858ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4221ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3859{ 4222{
3860 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3861 if (expect_false (!ev_is_active (w))) 4224 if (expect_false (!ev_is_active (w)))
3862 return; 4225 return;
3863 4226
… …
3894#endif 4257#endif
3895 4258
3896#if EV_CHILD_ENABLE 4259#if EV_CHILD_ENABLE
3897 4260
3898void 4261void
3899ev_child_start (EV_P_ ev_child *w) EV_THROW 4262ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3900{ 4263{
3901#if EV_MULTIPLICITY 4264#if EV_MULTIPLICITY
3902 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4265 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3903#endif 4266#endif
3904 if (expect_false (ev_is_active (w))) 4267 if (expect_false (ev_is_active (w)))
… …
3911 4274
3912 EV_FREQUENT_CHECK; 4275 EV_FREQUENT_CHECK;
3913} 4276}
3914 4277
3915void 4278void
3916ev_child_stop (EV_P_ ev_child *w) EV_THROW 4279ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3917{ 4280{
3918 clear_pending (EV_A_ (W)w); 4281 clear_pending (EV_A_ (W)w);
3919 if (expect_false (!ev_is_active (w))) 4282 if (expect_false (!ev_is_active (w)))
3920 return; 4283 return;
3921 4284
… …
3938 4301
3939#define DEF_STAT_INTERVAL 5.0074891 4302#define DEF_STAT_INTERVAL 5.0074891
3940#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4303#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3941#define MIN_STAT_INTERVAL 0.1074891 4304#define MIN_STAT_INTERVAL 0.1074891
3942 4305
3943static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4306noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3944 4307
3945#if EV_USE_INOTIFY 4308#if EV_USE_INOTIFY
3946 4309
3947/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4310/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3948# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4311# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3949 4312
3950static void noinline 4313noinline
4314static void
3951infy_add (EV_P_ ev_stat *w) 4315infy_add (EV_P_ ev_stat *w)
3952{ 4316{
3953 w->wd = inotify_add_watch (fs_fd, w->path, 4317 w->wd = inotify_add_watch (fs_fd, w->path,
3954 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4318 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3955 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4319 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4019 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4383 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4020 ev_timer_again (EV_A_ &w->timer); 4384 ev_timer_again (EV_A_ &w->timer);
4021 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4385 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4022} 4386}
4023 4387
4024static void noinline 4388noinline
4389static void
4025infy_del (EV_P_ ev_stat *w) 4390infy_del (EV_P_ ev_stat *w)
4026{ 4391{
4027 int slot; 4392 int slot;
4028 int wd = w->wd; 4393 int wd = w->wd;
4029 4394
… …
4036 4401
4037 /* remove this watcher, if others are watching it, they will rearm */ 4402 /* remove this watcher, if others are watching it, they will rearm */
4038 inotify_rm_watch (fs_fd, wd); 4403 inotify_rm_watch (fs_fd, wd);
4039} 4404}
4040 4405
4041static void noinline 4406noinline
4407static void
4042infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4408infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4043{ 4409{
4044 if (slot < 0) 4410 if (slot < 0)
4045 /* overflow, need to check for all hash slots */ 4411 /* overflow, need to check for all hash slots */
4046 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4412 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4082 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4448 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4083 ofs += sizeof (struct inotify_event) + ev->len; 4449 ofs += sizeof (struct inotify_event) + ev->len;
4084 } 4450 }
4085} 4451}
4086 4452
4087inline_size void ecb_cold 4453inline_size ecb_cold
4454void
4088ev_check_2625 (EV_P) 4455ev_check_2625 (EV_P)
4089{ 4456{
4090 /* kernels < 2.6.25 are borked 4457 /* kernels < 2.6.25 are borked
4091 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4458 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4092 */ 4459 */
… …
4182#else 4549#else
4183# define EV_LSTAT(p,b) lstat (p, b) 4550# define EV_LSTAT(p,b) lstat (p, b)
4184#endif 4551#endif
4185 4552
4186void 4553void
4187ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4554ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4188{ 4555{
4189 if (lstat (w->path, &w->attr) < 0) 4556 if (lstat (w->path, &w->attr) < 0)
4190 w->attr.st_nlink = 0; 4557 w->attr.st_nlink = 0;
4191 else if (!w->attr.st_nlink) 4558 else if (!w->attr.st_nlink)
4192 w->attr.st_nlink = 1; 4559 w->attr.st_nlink = 1;
4193} 4560}
4194 4561
4195static void noinline 4562noinline
4563static void
4196stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4564stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4197{ 4565{
4198 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4566 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4199 4567
4200 ev_statdata prev = w->attr; 4568 ev_statdata prev = w->attr;
… …
4231 ev_feed_event (EV_A_ w, EV_STAT); 4599 ev_feed_event (EV_A_ w, EV_STAT);
4232 } 4600 }
4233} 4601}
4234 4602
4235void 4603void
4236ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4604ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4237{ 4605{
4238 if (expect_false (ev_is_active (w))) 4606 if (expect_false (ev_is_active (w)))
4239 return; 4607 return;
4240 4608
4241 ev_stat_stat (EV_A_ w); 4609 ev_stat_stat (EV_A_ w);
… …
4262 4630
4263 EV_FREQUENT_CHECK; 4631 EV_FREQUENT_CHECK;
4264} 4632}
4265 4633
4266void 4634void
4267ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4635ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4268{ 4636{
4269 clear_pending (EV_A_ (W)w); 4637 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4638 if (expect_false (!ev_is_active (w)))
4271 return; 4639 return;
4272 4640
… …
4288} 4656}
4289#endif 4657#endif
4290 4658
4291#if EV_IDLE_ENABLE 4659#if EV_IDLE_ENABLE
4292void 4660void
4293ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4661ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4294{ 4662{
4295 if (expect_false (ev_is_active (w))) 4663 if (expect_false (ev_is_active (w)))
4296 return; 4664 return;
4297 4665
4298 pri_adjust (EV_A_ (W)w); 4666 pri_adjust (EV_A_ (W)w);
… …
4303 int active = ++idlecnt [ABSPRI (w)]; 4671 int active = ++idlecnt [ABSPRI (w)];
4304 4672
4305 ++idleall; 4673 ++idleall;
4306 ev_start (EV_A_ (W)w, active); 4674 ev_start (EV_A_ (W)w, active);
4307 4675
4308 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4676 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4309 idles [ABSPRI (w)][active - 1] = w; 4677 idles [ABSPRI (w)][active - 1] = w;
4310 } 4678 }
4311 4679
4312 EV_FREQUENT_CHECK; 4680 EV_FREQUENT_CHECK;
4313} 4681}
4314 4682
4315void 4683void
4316ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4684ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4317{ 4685{
4318 clear_pending (EV_A_ (W)w); 4686 clear_pending (EV_A_ (W)w);
4319 if (expect_false (!ev_is_active (w))) 4687 if (expect_false (!ev_is_active (w)))
4320 return; 4688 return;
4321 4689
… …
4335} 4703}
4336#endif 4704#endif
4337 4705
4338#if EV_PREPARE_ENABLE 4706#if EV_PREPARE_ENABLE
4339void 4707void
4340ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4708ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4341{ 4709{
4342 if (expect_false (ev_is_active (w))) 4710 if (expect_false (ev_is_active (w)))
4343 return; 4711 return;
4344 4712
4345 EV_FREQUENT_CHECK; 4713 EV_FREQUENT_CHECK;
4346 4714
4347 ev_start (EV_A_ (W)w, ++preparecnt); 4715 ev_start (EV_A_ (W)w, ++preparecnt);
4348 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4716 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4349 prepares [preparecnt - 1] = w; 4717 prepares [preparecnt - 1] = w;
4350 4718
4351 EV_FREQUENT_CHECK; 4719 EV_FREQUENT_CHECK;
4352} 4720}
4353 4721
4354void 4722void
4355ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4723ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4356{ 4724{
4357 clear_pending (EV_A_ (W)w); 4725 clear_pending (EV_A_ (W)w);
4358 if (expect_false (!ev_is_active (w))) 4726 if (expect_false (!ev_is_active (w)))
4359 return; 4727 return;
4360 4728
… …
4373} 4741}
4374#endif 4742#endif
4375 4743
4376#if EV_CHECK_ENABLE 4744#if EV_CHECK_ENABLE
4377void 4745void
4378ev_check_start (EV_P_ ev_check *w) EV_THROW 4746ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4379{ 4747{
4380 if (expect_false (ev_is_active (w))) 4748 if (expect_false (ev_is_active (w)))
4381 return; 4749 return;
4382 4750
4383 EV_FREQUENT_CHECK; 4751 EV_FREQUENT_CHECK;
4384 4752
4385 ev_start (EV_A_ (W)w, ++checkcnt); 4753 ev_start (EV_A_ (W)w, ++checkcnt);
4386 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4754 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4387 checks [checkcnt - 1] = w; 4755 checks [checkcnt - 1] = w;
4388 4756
4389 EV_FREQUENT_CHECK; 4757 EV_FREQUENT_CHECK;
4390} 4758}
4391 4759
4392void 4760void
4393ev_check_stop (EV_P_ ev_check *w) EV_THROW 4761ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4394{ 4762{
4395 clear_pending (EV_A_ (W)w); 4763 clear_pending (EV_A_ (W)w);
4396 if (expect_false (!ev_is_active (w))) 4764 if (expect_false (!ev_is_active (w)))
4397 return; 4765 return;
4398 4766
… …
4410 EV_FREQUENT_CHECK; 4778 EV_FREQUENT_CHECK;
4411} 4779}
4412#endif 4780#endif
4413 4781
4414#if EV_EMBED_ENABLE 4782#if EV_EMBED_ENABLE
4415void noinline 4783noinline
4784void
4416ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4785ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4417{ 4786{
4418 ev_run (w->other, EVRUN_NOWAIT); 4787 ev_run (w->other, EVRUN_NOWAIT);
4419} 4788}
4420 4789
4421static void 4790static void
… …
4469 ev_idle_stop (EV_A_ idle); 4838 ev_idle_stop (EV_A_ idle);
4470} 4839}
4471#endif 4840#endif
4472 4841
4473void 4842void
4474ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4843ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4475{ 4844{
4476 if (expect_false (ev_is_active (w))) 4845 if (expect_false (ev_is_active (w)))
4477 return; 4846 return;
4478 4847
4479 { 4848 {
… …
4500 4869
4501 EV_FREQUENT_CHECK; 4870 EV_FREQUENT_CHECK;
4502} 4871}
4503 4872
4504void 4873void
4505ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4874ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4506{ 4875{
4507 clear_pending (EV_A_ (W)w); 4876 clear_pending (EV_A_ (W)w);
4508 if (expect_false (!ev_is_active (w))) 4877 if (expect_false (!ev_is_active (w)))
4509 return; 4878 return;
4510 4879
… …
4520} 4889}
4521#endif 4890#endif
4522 4891
4523#if EV_FORK_ENABLE 4892#if EV_FORK_ENABLE
4524void 4893void
4525ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4894ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4526{ 4895{
4527 if (expect_false (ev_is_active (w))) 4896 if (expect_false (ev_is_active (w)))
4528 return; 4897 return;
4529 4898
4530 EV_FREQUENT_CHECK; 4899 EV_FREQUENT_CHECK;
4531 4900
4532 ev_start (EV_A_ (W)w, ++forkcnt); 4901 ev_start (EV_A_ (W)w, ++forkcnt);
4533 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4902 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4534 forks [forkcnt - 1] = w; 4903 forks [forkcnt - 1] = w;
4535 4904
4536 EV_FREQUENT_CHECK; 4905 EV_FREQUENT_CHECK;
4537} 4906}
4538 4907
4539void 4908void
4540ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4909ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4541{ 4910{
4542 clear_pending (EV_A_ (W)w); 4911 clear_pending (EV_A_ (W)w);
4543 if (expect_false (!ev_is_active (w))) 4912 if (expect_false (!ev_is_active (w)))
4544 return; 4913 return;
4545 4914
… …
4558} 4927}
4559#endif 4928#endif
4560 4929
4561#if EV_CLEANUP_ENABLE 4930#if EV_CLEANUP_ENABLE
4562void 4931void
4563ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4932ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4564{ 4933{
4565 if (expect_false (ev_is_active (w))) 4934 if (expect_false (ev_is_active (w)))
4566 return; 4935 return;
4567 4936
4568 EV_FREQUENT_CHECK; 4937 EV_FREQUENT_CHECK;
4569 4938
4570 ev_start (EV_A_ (W)w, ++cleanupcnt); 4939 ev_start (EV_A_ (W)w, ++cleanupcnt);
4571 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4940 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4572 cleanups [cleanupcnt - 1] = w; 4941 cleanups [cleanupcnt - 1] = w;
4573 4942
4574 /* cleanup watchers should never keep a refcount on the loop */ 4943 /* cleanup watchers should never keep a refcount on the loop */
4575 ev_unref (EV_A); 4944 ev_unref (EV_A);
4576 EV_FREQUENT_CHECK; 4945 EV_FREQUENT_CHECK;
4577} 4946}
4578 4947
4579void 4948void
4580ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4949ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4581{ 4950{
4582 clear_pending (EV_A_ (W)w); 4951 clear_pending (EV_A_ (W)w);
4583 if (expect_false (!ev_is_active (w))) 4952 if (expect_false (!ev_is_active (w)))
4584 return; 4953 return;
4585 4954
… …
4599} 4968}
4600#endif 4969#endif
4601 4970
4602#if EV_ASYNC_ENABLE 4971#if EV_ASYNC_ENABLE
4603void 4972void
4604ev_async_start (EV_P_ ev_async *w) EV_THROW 4973ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4605{ 4974{
4606 if (expect_false (ev_is_active (w))) 4975 if (expect_false (ev_is_active (w)))
4607 return; 4976 return;
4608 4977
4609 w->sent = 0; 4978 w->sent = 0;
… …
4611 evpipe_init (EV_A); 4980 evpipe_init (EV_A);
4612 4981
4613 EV_FREQUENT_CHECK; 4982 EV_FREQUENT_CHECK;
4614 4983
4615 ev_start (EV_A_ (W)w, ++asynccnt); 4984 ev_start (EV_A_ (W)w, ++asynccnt);
4616 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4985 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4617 asyncs [asynccnt - 1] = w; 4986 asyncs [asynccnt - 1] = w;
4618 4987
4619 EV_FREQUENT_CHECK; 4988 EV_FREQUENT_CHECK;
4620} 4989}
4621 4990
4622void 4991void
4623ev_async_stop (EV_P_ ev_async *w) EV_THROW 4992ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4624{ 4993{
4625 clear_pending (EV_A_ (W)w); 4994 clear_pending (EV_A_ (W)w);
4626 if (expect_false (!ev_is_active (w))) 4995 if (expect_false (!ev_is_active (w)))
4627 return; 4996 return;
4628 4997
… …
4639 5008
4640 EV_FREQUENT_CHECK; 5009 EV_FREQUENT_CHECK;
4641} 5010}
4642 5011
4643void 5012void
4644ev_async_send (EV_P_ ev_async *w) EV_THROW 5013ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4645{ 5014{
4646 w->sent = 1; 5015 w->sent = 1;
4647 evpipe_write (EV_A_ &async_pending); 5016 evpipe_write (EV_A_ &async_pending);
4648} 5017}
4649#endif 5018#endif
… …
4686 5055
4687 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5056 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4688} 5057}
4689 5058
4690void 5059void
4691ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5060ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4692{ 5061{
4693 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5062 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4694
4695 if (expect_false (!once))
4696 {
4697 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4698 return;
4699 }
4700 5063
4701 once->cb = cb; 5064 once->cb = cb;
4702 once->arg = arg; 5065 once->arg = arg;
4703 5066
4704 ev_init (&once->io, once_cb_io); 5067 ev_init (&once->io, once_cb_io);
… …
4717} 5080}
4718 5081
4719/*****************************************************************************/ 5082/*****************************************************************************/
4720 5083
4721#if EV_WALK_ENABLE 5084#if EV_WALK_ENABLE
4722void ecb_cold 5085ecb_cold
5086void
4723ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5087ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4724{ 5088{
4725 int i, j; 5089 int i, j;
4726 ev_watcher_list *wl, *wn; 5090 ev_watcher_list *wl, *wn;
4727 5091
4728 if (types & (EV_IO | EV_EMBED)) 5092 if (types & (EV_IO | EV_EMBED))

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines