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Comparing libev/ev.c (file contents):
Revision 1.462 by root, Sun Jan 5 02:59:36 2014 UTC vs.
Revision 1.500 by root, Mon Jul 1 20:47:37 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
… …
256# else 267# else
257# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
258# endif 269# endif
259#endif 270#endif
260 271
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
278# endif
279#endif
280
261#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 283# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 284# else
265# define EV_USE_MONOTONIC 0 285# define EV_USE_MONOTONIC 0
… …
304 324
305#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
306# define EV_USE_PORT 0 326# define EV_USE_PORT 0
307#endif 327#endif
308 328
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
309#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
311# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
312# else 340# else
313# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
354 382
355#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 385#endif
358 386
359#ifdef ANDROID 387#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 388/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 389# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 390# define EV_USE_SELECT 0
363/* 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 */
364# undef EV_USE_CLOCK_SYSCALL 392# undef EV_USE_CLOCK_SYSCALL
… …
405 433
406#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
407/* 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 */
408# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
409# 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
410# endif 446# endif
411#endif 447#endif
412 448
413#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
414# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
482/* 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 */
483/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
484/* 520/*
485 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
486 * 522 *
487 * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 525 * All rights reserved.
490 * 526 *
491 * 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-
492 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
506 * 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;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * 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
510 * 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.
511 */ 558 */
512 559
513#ifndef ECB_H 560#ifndef ECB_H
514#define ECB_H 561#define ECB_H
515 562
516/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003 564#define ECB_VERSION 0x00010006
518 565
519#ifdef _WIN32 566#ifdef _WIN32
520 typedef signed char int8_t; 567 typedef signed char int8_t;
521 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
522 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
539 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
541 #endif 588 #endif
542#else 589#else
543 #include <inttypes.h> 590 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
546 #else 593 #else
547 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
548 #endif 595 #endif
549#endif 596#endif
550 597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
551/* work around x32 idiocy by defining proper macros */ 601/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 603 #if _ILP32
554 #define ECB_AMD64_X32 1 604 #define ECB_AMD64_X32 1
555 #else 605 #else
556 #define ECB_AMD64 1 606 #define ECB_AMD64 1
557 #endif 607 #endif
… …
562 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 613 * or so.
564 * 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
565 * 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.
566 */ 616 */
567#ifndef ECB_GCC_VERSION
568 #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__
569 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
570 #else 619#else
571 #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)))
572 #endif 621#endif
573#endif
574 622
575#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)))
576#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
577#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
578#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
579#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)
580 653
581#if ECB_CPP 654#if ECB_CPP
582 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
599 672
600#if ECB_NO_SMP 673#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
602#endif 675#endif
603 676
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
604#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
605 #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")
606 #if __i386 || __i386__ 689 #if __i386 || __i386__
607 #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")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #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 */
616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
618 #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")
619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622 #elif (__sparc || __sparc__) && !__sparcv8 715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623 #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")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__ 719 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
648 741
649#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7) 743 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */ 744 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #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)
653 749
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 750 #elif ECB_CLANG_EXTENSION(c_atomic)
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model. 751 /* see comment below (stdatomic.h) about the C11 memory model. */
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 752 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */ 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)
662 756
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize () 758 #define ECB_MEMORY_FENCE __sync_synchronize ()
665 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 759 #elif _MSC_VER >= 1500 /* VC++ 2008 */
666 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 760 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
676 #elif defined _WIN32 770 #elif defined _WIN32
677 #include <WinNT.h> 771 #include <WinNT.h>
678 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
679 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
680 #include <mbarrier.h> 774 #include <mbarrier.h>
681 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
682 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
683 #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 ()
684 #elif __xlC__ 779 #elif __xlC__
685 #define ECB_MEMORY_FENCE __sync () 780 #define ECB_MEMORY_FENCE __sync ()
686 #endif 781 #endif
687#endif 782#endif
688 783
689#ifndef ECB_MEMORY_FENCE 784#ifndef ECB_MEMORY_FENCE
690 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
691 /* 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, */
692 /* not just C11 atomics and atomic accesses */ 787 /* not just C11 atomics and atomic accesses */
693 #include <stdatomic.h> 788 #include <stdatomic.h>
694 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
695 /* any fence other than seq_cst, which isn't very efficient for us. */
696 /* Why that is, we don't know - either the C11 memory model is quite useless */
697 /* for most usages, or gcc and clang have a bug */
698 /* I *currently* lean towards the latter, and inefficiently implement */
699 /* all three of ecb's fences as a seq_cst fence */
700 #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)
701 #endif 792 #endif
702#endif 793#endif
703 794
704#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
705 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
725 816
726#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
727 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728#endif 819#endif
729 820
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
730/*****************************************************************************/ 825/*****************************************************************************/
731 826
732#if __cplusplus 827#if ECB_CPP
733 #define ecb_inline static inline 828 #define ecb_inline static inline
734#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
735 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
736#elif ECB_C99 831#elif ECB_C99
737 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
751 846
752#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
753#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
755#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))
756 852
757#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
758 854
759#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760 #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)
761 #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)
762 #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)
763 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764#else 879#else
765 #define ecb_attribute(attrlist)
766 #define ecb_is_constant(expr) 0
767 #define ecb_expect(expr,value) (expr)
768 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
769#endif 881#endif
770 882
771/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
772#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; };
773 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
776#endif 890#endif
777 891
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
778#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
910#endif
911
779#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
780#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
781#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
782 915
783#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 */
784 #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)
785#else 924#else
786 #define ecb_noreturn ecb_attribute ((__noreturn__)) 925 #define ecb_noreturn ecb_attribute ((__noreturn__))
787#endif 926#endif
788 927
789#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
… …
804/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
805#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
806#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
807 946
808/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
809#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))
810 /* 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 */
811 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
814 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
815 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
816 /* no popcountll */ 958 /* no popcountll */
817#else 959#else
818 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819 ecb_function_ int 961 ecb_function_ ecb_const int
820 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
821 { 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
822 int r = 0; 969 int r = 0;
823 970
824 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
825 972
826#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
836 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
837 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
838#endif 985#endif
839 986
840 return r; 987 return r;
988#endif
841 } 989 }
842 990
843 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844 ecb_function_ int 992 ecb_function_ ecb_const int
845 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
846 { 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
847 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
848 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
849 } 1003 }
850 1004
851 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852 ecb_function_ int 1006 ecb_function_ ecb_const int
853 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
854 { 1008 {
855 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
856 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
858 x *= 0x01010101; 1012 x *= 0x01010101;
859 1013
860 return x >> 24; 1014 return x >> 24;
861 } 1015 }
862 1016
863 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865 { 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
866 int r = 0; 1025 int r = 0;
867 1026
868 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
869 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
870 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
871 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
872 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
873 1032
874 return r; 1033 return r;
1034#endif
875 } 1035 }
876 1036
877 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879 { 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
880 int r = 0; 1045 int r = 0;
881 1046
882 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
883 1048
884 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
885 } 1051 }
886#endif 1052#endif
887 1053
888ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
889ecb_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)); }
890ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
891ecb_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)); }
892 1058
893ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895{ 1061{
896 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
897 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898} 1064}
899 1065
900ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902{ 1068{
903 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
907 1073
908 return x; 1074 return x;
909} 1075}
910 1076
911ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913{ 1079{
914 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
920 return x; 1086 return x;
921} 1087}
922 1088
923/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
924/* so for this version we are lazy */ 1090/* so for this version we are lazy */
925ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926ecb_function_ int 1092ecb_function_ ecb_const int
927ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
928{ 1094{
929 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930} 1096}
931 1097
932ecb_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);
933ecb_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);
934ecb_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);
935ecb_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);
936ecb_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);
937ecb_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);
938ecb_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);
939ecb_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);
940 1106
941ecb_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); }
942ecb_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); }
943ecb_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); }
944ecb_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); }
945ecb_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); }
946ecb_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); }
947ecb_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); }
948ecb_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); }
949 1115
950#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
951 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
952 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
953 #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)))
954#else 1129#else
955 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
957 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
958 { 1133 {
959 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
960 } 1135 }
961 1136
962 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
964 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
965 { 1140 {
966 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967 } 1142 }
968 1143
969 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
971 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
972 { 1147 {
973 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974 } 1149 }
975#endif 1150#endif
976 1151
977#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
979#else 1154#else
980 /* 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 :/ */
981 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
982 ecb_inline void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983#endif 1158#endif
984 1159
985/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
986#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987 1162
988ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989ecb_inline unsigned char 1164ecb_inline ecb_const uint32_t
990ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
991{ 1166{
992 /* the union code still generates code under pressure in gcc, */ 1167 /* the union code still generates code under pressure in gcc, */
993 /* but less than using pointers, and always seems to */ 1168 /* but less than using pointers, and always seems to */
994 /* successfully return a constant. */ 1169 /* successfully return a constant. */
995 /* the reason why we have this horrible preprocessor mess */ 1170 /* the reason why we have this horrible preprocessor mess */
996 /* 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 */
997 /* or when using a recent enough gcc version (>= 4.6) */ 1172 /* or when using a recent enough gcc version (>= 4.6) */
998#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999 return 0x44;
1000#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
1001 return 0x44; 1176 return 0x44332211;
1002#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
1003 return 0x11; 1180 return 0x11223344;
1004#else 1181#else
1005 union 1182 union
1006 { 1183 {
1184 uint8_t c[4];
1007 uint32_t i; 1185 uint32_t u;
1008 uint8_t c;
1009 } u = { 0x11223344 }; 1186 } u = { 0x11, 0x22, 0x33, 0x44 };
1010 return u.c; 1187 return u.u;
1011#endif 1188#endif
1012} 1189}
1013 1190
1014ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015ecb_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; }
1016ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017ecb_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; }
1018 1195
1019#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
1020 #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))
1021#else 1198#else
1022 #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)))
1023#endif 1200#endif
1024 1201
1025#if __cplusplus 1202#if ECB_CPP
1026 template<typename T> 1203 template<typename T>
1027 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
1028 { 1205 {
1029 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030 } 1207 }
… …
1047 } 1224 }
1048#else 1225#else
1049 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050#endif 1227#endif
1051 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
1052/*******************************************************************************/ 1325/*******************************************************************************/
1053/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1326/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054 1327
1055/* basically, everything uses "ieee pure-endian" floating point numbers */ 1328/* basically, everything uses "ieee pure-endian" floating point numbers */
1056/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1329/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057#if 0 \ 1330#if 0 \
1058 || __i386 || __i386__ \ 1331 || __i386 || __i386__ \
1059 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1332 || ECB_GCC_AMD64 \
1060 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1333 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061 || defined __arm__ && defined __ARM_EABI__ \
1062 || defined __s390__ || defined __s390x__ \ 1334 || defined __s390__ || defined __s390x__ \
1063 || defined __mips__ \ 1335 || defined __mips__ \
1064 || defined __alpha__ \ 1336 || defined __alpha__ \
1065 || defined __hppa__ \ 1337 || defined __hppa__ \
1066 || defined __ia64__ \ 1338 || defined __ia64__ \
1067 || defined __m68k__ \ 1339 || defined __m68k__ \
1068 || defined __m88k__ \ 1340 || defined __m88k__ \
1069 || defined __sh__ \ 1341 || defined __sh__ \
1070 || 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__
1071 #define ECB_STDFP 1 1345 #define ECB_STDFP 1
1072 #include <string.h> /* for memcpy */ 1346 #include <string.h> /* for memcpy */
1073#else 1347#else
1074 #define ECB_STDFP 0 1348 #define ECB_STDFP 0
1075#endif 1349#endif
… …
1089 #define ECB_NAN NAN 1363 #define ECB_NAN NAN
1090 #else 1364 #else
1091 #define ECB_NAN ECB_INFINITY 1365 #define ECB_NAN ECB_INFINITY
1092 #endif 1366 #endif
1093 1367
1094 /* converts an ieee half/binary16 to a float */ 1368 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1369 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096 ecb_function_ float 1370 #define ecb_frexpf(x,e) frexpf ((x), (e))
1097 ecb_binary16_to_float (uint16_t x) 1371 #else
1098 { 1372 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099 int e = (x >> 10) & 0x1f; 1373 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100 int m = x & 0x3ff; 1374 #endif
1101 float r;
1102
1103 if (!e ) r = ldexpf (m , -24);
1104 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105 else if (m ) r = ECB_NAN;
1106 else r = ECB_INFINITY;
1107
1108 return x & 0x8000 ? -r : r;
1109 }
1110 1375
1111 /* convert a float to ieee single/binary32 */ 1376 /* convert a float to ieee single/binary32 */
1112 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);
1113 ecb_function_ uint32_t 1378 ecb_function_ ecb_const uint32_t
1114 ecb_float_to_binary32 (float x) 1379 ecb_float_to_binary32 (float x)
1115 { 1380 {
1116 uint32_t r; 1381 uint32_t r;
1117 1382
1118 #if ECB_STDFP 1383 #if ECB_STDFP
… …
1125 if (x == 0e0f ) return 0x00000000U; 1390 if (x == 0e0f ) return 0x00000000U;
1126 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1391 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1392 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128 if (x != x ) return 0x7fbfffffU; 1393 if (x != x ) return 0x7fbfffffU;
1129 1394
1130 m = frexpf (x, &e) * 0x1000000U; 1395 m = ecb_frexpf (x, &e) * 0x1000000U;
1131 1396
1132 r = m & 0x80000000U; 1397 r = m & 0x80000000U;
1133 1398
1134 if (r) 1399 if (r)
1135 m = -m; 1400 m = -m;
… …
1147 1412
1148 return r; 1413 return r;
1149 } 1414 }
1150 1415
1151 /* converts an ieee single/binary32 to a float */ 1416 /* converts an ieee single/binary32 to a float */
1152 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);
1153 ecb_function_ float 1418 ecb_function_ ecb_const float
1154 ecb_binary32_to_float (uint32_t x) 1419 ecb_binary32_to_float (uint32_t x)
1155 { 1420 {
1156 float r; 1421 float r;
1157 1422
1158 #if ECB_STDFP 1423 #if ECB_STDFP
… …
1168 x |= 0x800000U; 1433 x |= 0x800000U;
1169 else 1434 else
1170 e = 1; 1435 e = 1;
1171 1436
1172 /* 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 */
1173 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1438 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174 1439
1175 r = neg ? -r : r; 1440 r = neg ? -r : r;
1176 #endif 1441 #endif
1177 1442
1178 return r; 1443 return r;
1179 } 1444 }
1180 1445
1181 /* convert a double to ieee double/binary64 */ 1446 /* convert a double to ieee double/binary64 */
1182 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);
1183 ecb_function_ uint64_t 1448 ecb_function_ ecb_const uint64_t
1184 ecb_double_to_binary64 (double x) 1449 ecb_double_to_binary64 (double x)
1185 { 1450 {
1186 uint64_t r; 1451 uint64_t r;
1187 1452
1188 #if ECB_STDFP 1453 #if ECB_STDFP
… …
1217 1482
1218 return r; 1483 return r;
1219 } 1484 }
1220 1485
1221 /* converts an ieee double/binary64 to a double */ 1486 /* converts an ieee double/binary64 to a double */
1222 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);
1223 ecb_function_ double 1488 ecb_function_ ecb_const double
1224 ecb_binary64_to_double (uint64_t x) 1489 ecb_binary64_to_double (uint64_t x)
1225 { 1490 {
1226 double r; 1491 double r;
1227 1492
1228 #if ECB_STDFP 1493 #if ECB_STDFP
… …
1246 #endif 1511 #endif
1247 1512
1248 return r; 1513 return r;
1249 } 1514 }
1250 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));
1530 }
1531
1251#endif 1532#endif
1252 1533
1253#endif 1534#endif
1254 1535
1255/* ECB.H END */ 1536/* ECB.H END */
1256 1537
1257#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1538#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1258/* if your architecture doesn't need memory fences, e.g. because it is 1539/* if your architecture doesn't need memory fences, e.g. because it is
1259 * single-cpu/core, or if you use libev in a project that doesn't use libev 1540 * single-cpu/core, or if you use libev in a project that doesn't use libev
1260 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1541 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1261 * libev, in which cases the memory fences become nops. 1542 * libev, in which cases the memory fences become nops.
1262 * alternatively, you can remove this #error and link against libpthread, 1543 * alternatively, you can remove this #error and link against libpthread,
1263 * which will then provide the memory fences. 1544 * which will then provide the memory fences.
1264 */ 1545 */
1265# error "memory fences not defined for your architecture, please report" 1546# error "memory fences not defined for your architecture, please report"
… …
1269# define ECB_MEMORY_FENCE do { } while (0) 1550# define ECB_MEMORY_FENCE do { } while (0)
1270# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1551# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1271# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1552# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1272#endif 1553#endif
1273 1554
1274#define expect_false(cond) ecb_expect_false (cond)
1275#define expect_true(cond) ecb_expect_true (cond)
1276#define noinline ecb_noinline
1277
1278#define inline_size ecb_inline 1555#define inline_size ecb_inline
1279 1556
1280#if EV_FEATURE_CODE 1557#if EV_FEATURE_CODE
1281# define inline_speed ecb_inline 1558# define inline_speed ecb_inline
1282#else 1559#else
1283# define inline_speed static noinline 1560# define inline_speed ecb_noinline static
1284#endif 1561#endif
1285 1562
1286#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1563#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287 1564
1288#if EV_MINPRI == EV_MAXPRI 1565#if EV_MINPRI == EV_MAXPRI
1289# define ABSPRI(w) (((W)w), 0) 1566# define ABSPRI(w) (((W)w), 0)
1290#else 1567#else
1291# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1568# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1292#endif 1569#endif
1293 1570
1294#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1571#define EMPTY /* required for microsofts broken pseudo-c compiler */
1295#define EMPTY2(a,b) /* used to suppress some warnings */
1296 1572
1297typedef ev_watcher *W; 1573typedef ev_watcher *W;
1298typedef ev_watcher_list *WL; 1574typedef ev_watcher_list *WL;
1299typedef ev_watcher_time *WT; 1575typedef ev_watcher_time *WT;
1300 1576
… …
1325# include "ev_win32.c" 1601# include "ev_win32.c"
1326#endif 1602#endif
1327 1603
1328/*****************************************************************************/ 1604/*****************************************************************************/
1329 1605
1606#if EV_USE_LINUXAIO
1607# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1608#endif
1609
1330/* define a suitable floor function (only used by periodics atm) */ 1610/* define a suitable floor function (only used by periodics atm) */
1331 1611
1332#if EV_USE_FLOOR 1612#if EV_USE_FLOOR
1333# include <math.h> 1613# include <math.h>
1334# define ev_floor(v) floor (v) 1614# define ev_floor(v) floor (v)
1335#else 1615#else
1336 1616
1337#include <float.h> 1617#include <float.h>
1338 1618
1339/* a floor() replacement function, should be independent of ev_tstamp type */ 1619/* a floor() replacement function, should be independent of ev_tstamp type */
1620ecb_noinline
1340static ev_tstamp noinline 1621static ev_tstamp
1341ev_floor (ev_tstamp v) 1622ev_floor (ev_tstamp v)
1342{ 1623{
1343 /* the choice of shift factor is not terribly important */ 1624 /* the choice of shift factor is not terribly important */
1344#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1625#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1626 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1346#else 1627#else
1347 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1348#endif 1629#endif
1349 1630
1350 /* argument too large for an unsigned long? */ 1631 /* argument too large for an unsigned long? */
1351 if (expect_false (v >= shift)) 1632 if (ecb_expect_false (v >= shift))
1352 { 1633 {
1353 ev_tstamp f; 1634 ev_tstamp f;
1354 1635
1355 if (v == v - 1.) 1636 if (v == v - 1.)
1356 return v; /* very large number */ 1637 return v; /* very large number */
… …
1358 f = shift * ev_floor (v * (1. / shift)); 1639 f = shift * ev_floor (v * (1. / shift));
1359 return f + ev_floor (v - f); 1640 return f + ev_floor (v - f);
1360 } 1641 }
1361 1642
1362 /* special treatment for negative args? */ 1643 /* special treatment for negative args? */
1363 if (expect_false (v < 0.)) 1644 if (ecb_expect_false (v < 0.))
1364 { 1645 {
1365 ev_tstamp f = -ev_floor (-v); 1646 ev_tstamp f = -ev_floor (-v);
1366 1647
1367 return f - (f == v ? 0 : 1); 1648 return f - (f == v ? 0 : 1);
1368 } 1649 }
… …
1377 1658
1378#ifdef __linux 1659#ifdef __linux
1379# include <sys/utsname.h> 1660# include <sys/utsname.h>
1380#endif 1661#endif
1381 1662
1382static unsigned int noinline ecb_cold 1663ecb_noinline ecb_cold
1664static unsigned int
1383ev_linux_version (void) 1665ev_linux_version (void)
1384{ 1666{
1385#ifdef __linux 1667#ifdef __linux
1386 unsigned int v = 0; 1668 unsigned int v = 0;
1387 struct utsname buf; 1669 struct utsname buf;
… …
1416} 1698}
1417 1699
1418/*****************************************************************************/ 1700/*****************************************************************************/
1419 1701
1420#if EV_AVOID_STDIO 1702#if EV_AVOID_STDIO
1421static void noinline ecb_cold 1703ecb_noinline ecb_cold
1704static void
1422ev_printerr (const char *msg) 1705ev_printerr (const char *msg)
1423{ 1706{
1424 write (STDERR_FILENO, msg, strlen (msg)); 1707 write (STDERR_FILENO, msg, strlen (msg));
1425} 1708}
1426#endif 1709#endif
1427 1710
1428static void (*syserr_cb)(const char *msg) EV_THROW; 1711static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1429 1712
1430void ecb_cold 1713ecb_cold
1714void
1431ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1715ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1432{ 1716{
1433 syserr_cb = cb; 1717 syserr_cb = cb;
1434} 1718}
1435 1719
1436static void noinline ecb_cold 1720ecb_noinline ecb_cold
1721static void
1437ev_syserr (const char *msg) 1722ev_syserr (const char *msg)
1438{ 1723{
1439 if (!msg) 1724 if (!msg)
1440 msg = "(libev) system error"; 1725 msg = "(libev) system error";
1441 1726
… …
1454 abort (); 1739 abort ();
1455 } 1740 }
1456} 1741}
1457 1742
1458static void * 1743static void *
1459ev_realloc_emul (void *ptr, long size) EV_THROW 1744ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1460{ 1745{
1461 /* some systems, notably openbsd and darwin, fail to properly 1746 /* some systems, notably openbsd and darwin, fail to properly
1462 * implement realloc (x, 0) (as required by both ansi c-89 and 1747 * implement realloc (x, 0) (as required by both ansi c-89 and
1463 * the single unix specification, so work around them here. 1748 * the single unix specification, so work around them here.
1464 * recently, also (at least) fedora and debian started breaking it, 1749 * recently, also (at least) fedora and debian started breaking it,
… …
1470 1755
1471 free (ptr); 1756 free (ptr);
1472 return 0; 1757 return 0;
1473} 1758}
1474 1759
1475static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1760static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1476 1761
1477void ecb_cold 1762ecb_cold
1763void
1478ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1764ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1479{ 1765{
1480 alloc = cb; 1766 alloc = cb;
1481} 1767}
1482 1768
1483inline_speed void * 1769inline_speed void *
… …
1510typedef struct 1796typedef struct
1511{ 1797{
1512 WL head; 1798 WL head;
1513 unsigned char events; /* the events watched for */ 1799 unsigned char events; /* the events watched for */
1514 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1800 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1515 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1801 unsigned char emask; /* some backends store the actual kernel mask in here */
1516 unsigned char unused; 1802 unsigned char unused;
1517#if EV_USE_EPOLL 1803#if EV_USE_EPOLL
1518 unsigned int egen; /* generation counter to counter epoll bugs */ 1804 unsigned int egen; /* generation counter to counter epoll bugs */
1519#endif 1805#endif
1520#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1806#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1585 static int ev_default_loop_ptr; 1871 static int ev_default_loop_ptr;
1586 1872
1587#endif 1873#endif
1588 1874
1589#if EV_FEATURE_API 1875#if EV_FEATURE_API
1590# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1876# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1591# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1877# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1592# define EV_INVOKE_PENDING invoke_cb (EV_A) 1878# define EV_INVOKE_PENDING invoke_cb (EV_A)
1593#else 1879#else
1594# define EV_RELEASE_CB (void)0 1880# define EV_RELEASE_CB (void)0
1595# define EV_ACQUIRE_CB (void)0 1881# define EV_ACQUIRE_CB (void)0
1596# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1882# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1600 1886
1601/*****************************************************************************/ 1887/*****************************************************************************/
1602 1888
1603#ifndef EV_HAVE_EV_TIME 1889#ifndef EV_HAVE_EV_TIME
1604ev_tstamp 1890ev_tstamp
1605ev_time (void) EV_THROW 1891ev_time (void) EV_NOEXCEPT
1606{ 1892{
1607#if EV_USE_REALTIME 1893#if EV_USE_REALTIME
1608 if (expect_true (have_realtime)) 1894 if (ecb_expect_true (have_realtime))
1609 { 1895 {
1610 struct timespec ts; 1896 struct timespec ts;
1611 clock_gettime (CLOCK_REALTIME, &ts); 1897 clock_gettime (CLOCK_REALTIME, &ts);
1612 return ts.tv_sec + ts.tv_nsec * 1e-9; 1898 return ts.tv_sec + ts.tv_nsec * 1e-9;
1613 } 1899 }
… …
1621 1907
1622inline_size ev_tstamp 1908inline_size ev_tstamp
1623get_clock (void) 1909get_clock (void)
1624{ 1910{
1625#if EV_USE_MONOTONIC 1911#if EV_USE_MONOTONIC
1626 if (expect_true (have_monotonic)) 1912 if (ecb_expect_true (have_monotonic))
1627 { 1913 {
1628 struct timespec ts; 1914 struct timespec ts;
1629 clock_gettime (CLOCK_MONOTONIC, &ts); 1915 clock_gettime (CLOCK_MONOTONIC, &ts);
1630 return ts.tv_sec + ts.tv_nsec * 1e-9; 1916 return ts.tv_sec + ts.tv_nsec * 1e-9;
1631 } 1917 }
… …
1634 return ev_time (); 1920 return ev_time ();
1635} 1921}
1636 1922
1637#if EV_MULTIPLICITY 1923#if EV_MULTIPLICITY
1638ev_tstamp 1924ev_tstamp
1639ev_now (EV_P) EV_THROW 1925ev_now (EV_P) EV_NOEXCEPT
1640{ 1926{
1641 return ev_rt_now; 1927 return ev_rt_now;
1642} 1928}
1643#endif 1929#endif
1644 1930
1645void 1931void
1646ev_sleep (ev_tstamp delay) EV_THROW 1932ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1647{ 1933{
1648 if (delay > 0.) 1934 if (delay > 0.)
1649 { 1935 {
1650#if EV_USE_NANOSLEEP 1936#if EV_USE_NANOSLEEP
1651 struct timespec ts; 1937 struct timespec ts;
1652 1938
1653 EV_TS_SET (ts, delay); 1939 EV_TS_SET (ts, delay);
1654 nanosleep (&ts, 0); 1940 nanosleep (&ts, 0);
1655#elif defined _WIN32 1941#elif defined _WIN32
1942 /* maybe this should round up, as ms is very low resolution */
1943 /* compared to select (µs) or nanosleep (ns) */
1656 Sleep ((unsigned long)(delay * 1e3)); 1944 Sleep ((unsigned long)(delay * 1e3));
1657#else 1945#else
1658 struct timeval tv; 1946 struct timeval tv;
1659 1947
1660 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1948 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1691 } 1979 }
1692 1980
1693 return ncur; 1981 return ncur;
1694} 1982}
1695 1983
1696static void * noinline ecb_cold 1984ecb_noinline ecb_cold
1985static void *
1697array_realloc (int elem, void *base, int *cur, int cnt) 1986array_realloc (int elem, void *base, int *cur, int cnt)
1698{ 1987{
1699 *cur = array_nextsize (elem, *cur, cnt); 1988 *cur = array_nextsize (elem, *cur, cnt);
1700 return ev_realloc (base, elem * *cur); 1989 return ev_realloc (base, elem * *cur);
1701} 1990}
1702 1991
1992#define array_needsize_noinit(base,offset,count)
1993
1703#define array_init_zero(base,count) \ 1994#define array_needsize_zerofill(base,offset,count) \
1704 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1995 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1705 1996
1706#define array_needsize(type,base,cur,cnt,init) \ 1997#define array_needsize(type,base,cur,cnt,init) \
1707 if (expect_false ((cnt) > (cur))) \ 1998 if (ecb_expect_false ((cnt) > (cur))) \
1708 { \ 1999 { \
1709 int ecb_unused ocur_ = (cur); \ 2000 ecb_unused int ocur_ = (cur); \
1710 (base) = (type *)array_realloc \ 2001 (base) = (type *)array_realloc \
1711 (sizeof (type), (base), &(cur), (cnt)); \ 2002 (sizeof (type), (base), &(cur), (cnt)); \
1712 init ((base) + (ocur_), (cur) - ocur_); \ 2003 init ((base), ocur_, ((cur) - ocur_)); \
1713 } 2004 }
1714 2005
1715#if 0 2006#if 0
1716#define array_slim(type,stem) \ 2007#define array_slim(type,stem) \
1717 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2008 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1726 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2017 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1727 2018
1728/*****************************************************************************/ 2019/*****************************************************************************/
1729 2020
1730/* dummy callback for pending events */ 2021/* dummy callback for pending events */
1731static void noinline 2022ecb_noinline
2023static void
1732pendingcb (EV_P_ ev_prepare *w, int revents) 2024pendingcb (EV_P_ ev_prepare *w, int revents)
1733{ 2025{
1734} 2026}
1735 2027
1736void noinline 2028ecb_noinline
2029void
1737ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2030ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1738{ 2031{
1739 W w_ = (W)w; 2032 W w_ = (W)w;
1740 int pri = ABSPRI (w_); 2033 int pri = ABSPRI (w_);
1741 2034
1742 if (expect_false (w_->pending)) 2035 if (ecb_expect_false (w_->pending))
1743 pendings [pri][w_->pending - 1].events |= revents; 2036 pendings [pri][w_->pending - 1].events |= revents;
1744 else 2037 else
1745 { 2038 {
1746 w_->pending = ++pendingcnt [pri]; 2039 w_->pending = ++pendingcnt [pri];
1747 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2040 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1748 pendings [pri][w_->pending - 1].w = w_; 2041 pendings [pri][w_->pending - 1].w = w_;
1749 pendings [pri][w_->pending - 1].events = revents; 2042 pendings [pri][w_->pending - 1].events = revents;
1750 } 2043 }
1751 2044
1752 pendingpri = NUMPRI - 1; 2045 pendingpri = NUMPRI - 1;
1753} 2046}
1754 2047
1755inline_speed void 2048inline_speed void
1756feed_reverse (EV_P_ W w) 2049feed_reverse (EV_P_ W w)
1757{ 2050{
1758 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2051 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1759 rfeeds [rfeedcnt++] = w; 2052 rfeeds [rfeedcnt++] = w;
1760} 2053}
1761 2054
1762inline_size void 2055inline_size void
1763feed_reverse_done (EV_P_ int revents) 2056feed_reverse_done (EV_P_ int revents)
… …
1798inline_speed void 2091inline_speed void
1799fd_event (EV_P_ int fd, int revents) 2092fd_event (EV_P_ int fd, int revents)
1800{ 2093{
1801 ANFD *anfd = anfds + fd; 2094 ANFD *anfd = anfds + fd;
1802 2095
1803 if (expect_true (!anfd->reify)) 2096 if (ecb_expect_true (!anfd->reify))
1804 fd_event_nocheck (EV_A_ fd, revents); 2097 fd_event_nocheck (EV_A_ fd, revents);
1805} 2098}
1806 2099
1807void 2100void
1808ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2101ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1809{ 2102{
1810 if (fd >= 0 && fd < anfdmax) 2103 if (fd >= 0 && fd < anfdmax)
1811 fd_event_nocheck (EV_A_ fd, revents); 2104 fd_event_nocheck (EV_A_ fd, revents);
1812} 2105}
1813 2106
… …
1850 ev_io *w; 2143 ev_io *w;
1851 2144
1852 unsigned char o_events = anfd->events; 2145 unsigned char o_events = anfd->events;
1853 unsigned char o_reify = anfd->reify; 2146 unsigned char o_reify = anfd->reify;
1854 2147
1855 anfd->reify = 0; 2148 anfd->reify = 0;
1856 2149
1857 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2150 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1858 { 2151 {
1859 anfd->events = 0; 2152 anfd->events = 0;
1860 2153
1861 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2154 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1862 anfd->events |= (unsigned char)w->events; 2155 anfd->events |= (unsigned char)w->events;
… …
1871 2164
1872 fdchangecnt = 0; 2165 fdchangecnt = 0;
1873} 2166}
1874 2167
1875/* something about the given fd changed */ 2168/* something about the given fd changed */
1876inline_size void 2169inline_size
2170void
1877fd_change (EV_P_ int fd, int flags) 2171fd_change (EV_P_ int fd, int flags)
1878{ 2172{
1879 unsigned char reify = anfds [fd].reify; 2173 unsigned char reify = anfds [fd].reify;
1880 anfds [fd].reify |= flags; 2174 anfds [fd].reify |= flags;
1881 2175
1882 if (expect_true (!reify)) 2176 if (ecb_expect_true (!reify))
1883 { 2177 {
1884 ++fdchangecnt; 2178 ++fdchangecnt;
1885 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2179 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1886 fdchanges [fdchangecnt - 1] = fd; 2180 fdchanges [fdchangecnt - 1] = fd;
1887 } 2181 }
1888} 2182}
1889 2183
1890/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2184/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1891inline_speed void ecb_cold 2185inline_speed ecb_cold void
1892fd_kill (EV_P_ int fd) 2186fd_kill (EV_P_ int fd)
1893{ 2187{
1894 ev_io *w; 2188 ev_io *w;
1895 2189
1896 while ((w = (ev_io *)anfds [fd].head)) 2190 while ((w = (ev_io *)anfds [fd].head))
… …
1899 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2193 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1900 } 2194 }
1901} 2195}
1902 2196
1903/* check whether the given fd is actually valid, for error recovery */ 2197/* check whether the given fd is actually valid, for error recovery */
1904inline_size int ecb_cold 2198inline_size ecb_cold int
1905fd_valid (int fd) 2199fd_valid (int fd)
1906{ 2200{
1907#ifdef _WIN32 2201#ifdef _WIN32
1908 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2202 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909#else 2203#else
1910 return fcntl (fd, F_GETFD) != -1; 2204 return fcntl (fd, F_GETFD) != -1;
1911#endif 2205#endif
1912} 2206}
1913 2207
1914/* called on EBADF to verify fds */ 2208/* called on EBADF to verify fds */
1915static void noinline ecb_cold 2209ecb_noinline ecb_cold
2210static void
1916fd_ebadf (EV_P) 2211fd_ebadf (EV_P)
1917{ 2212{
1918 int fd; 2213 int fd;
1919 2214
1920 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
1922 if (!fd_valid (fd) && errno == EBADF) 2217 if (!fd_valid (fd) && errno == EBADF)
1923 fd_kill (EV_A_ fd); 2218 fd_kill (EV_A_ fd);
1924} 2219}
1925 2220
1926/* called on ENOMEM in select/poll to kill some fds and retry */ 2221/* called on ENOMEM in select/poll to kill some fds and retry */
1927static void noinline ecb_cold 2222ecb_noinline ecb_cold
2223static void
1928fd_enomem (EV_P) 2224fd_enomem (EV_P)
1929{ 2225{
1930 int fd; 2226 int fd;
1931 2227
1932 for (fd = anfdmax; fd--; ) 2228 for (fd = anfdmax; fd--; )
… …
1936 break; 2232 break;
1937 } 2233 }
1938} 2234}
1939 2235
1940/* usually called after fork if backend needs to re-arm all fds from scratch */ 2236/* usually called after fork if backend needs to re-arm all fds from scratch */
1941static void noinline 2237ecb_noinline
2238static void
1942fd_rearm_all (EV_P) 2239fd_rearm_all (EV_P)
1943{ 2240{
1944 int fd; 2241 int fd;
1945 2242
1946 for (fd = 0; fd < anfdmax; ++fd) 2243 for (fd = 0; fd < anfdmax; ++fd)
… …
1999 ev_tstamp minat; 2296 ev_tstamp minat;
2000 ANHE *minpos; 2297 ANHE *minpos;
2001 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2298 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2002 2299
2003 /* find minimum child */ 2300 /* find minimum child */
2004 if (expect_true (pos + DHEAP - 1 < E)) 2301 if (ecb_expect_true (pos + DHEAP - 1 < E))
2005 { 2302 {
2006 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2303 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2007 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2304 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2008 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2305 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2009 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2306 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
2127 2424
2128/*****************************************************************************/ 2425/*****************************************************************************/
2129 2426
2130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2427#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131 2428
2132static void noinline ecb_cold 2429ecb_noinline ecb_cold
2430static void
2133evpipe_init (EV_P) 2431evpipe_init (EV_P)
2134{ 2432{
2135 if (!ev_is_active (&pipe_w)) 2433 if (!ev_is_active (&pipe_w))
2136 { 2434 {
2137 int fds [2]; 2435 int fds [2];
… …
2177inline_speed void 2475inline_speed void
2178evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2476evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2179{ 2477{
2180 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2478 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2181 2479
2182 if (expect_true (*flag)) 2480 if (ecb_expect_true (*flag))
2183 return; 2481 return;
2184 2482
2185 *flag = 1; 2483 *flag = 1;
2186 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2484 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2187 2485
… …
2208#endif 2506#endif
2209 { 2507 {
2210#ifdef _WIN32 2508#ifdef _WIN32
2211 WSABUF buf; 2509 WSABUF buf;
2212 DWORD sent; 2510 DWORD sent;
2213 buf.buf = &buf; 2511 buf.buf = (char *)&buf;
2214 buf.len = 1; 2512 buf.len = 1;
2215 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2513 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2216#else 2514#else
2217 write (evpipe [1], &(evpipe [1]), 1); 2515 write (evpipe [1], &(evpipe [1]), 1);
2218#endif 2516#endif
… …
2264 sig_pending = 0; 2562 sig_pending = 0;
2265 2563
2266 ECB_MEMORY_FENCE; 2564 ECB_MEMORY_FENCE;
2267 2565
2268 for (i = EV_NSIG - 1; i--; ) 2566 for (i = EV_NSIG - 1; i--; )
2269 if (expect_false (signals [i].pending)) 2567 if (ecb_expect_false (signals [i].pending))
2270 ev_feed_signal_event (EV_A_ i + 1); 2568 ev_feed_signal_event (EV_A_ i + 1);
2271 } 2569 }
2272#endif 2570#endif
2273 2571
2274#if EV_ASYNC_ENABLE 2572#if EV_ASYNC_ENABLE
… …
2290} 2588}
2291 2589
2292/*****************************************************************************/ 2590/*****************************************************************************/
2293 2591
2294void 2592void
2295ev_feed_signal (int signum) EV_THROW 2593ev_feed_signal (int signum) EV_NOEXCEPT
2296{ 2594{
2297#if EV_MULTIPLICITY 2595#if EV_MULTIPLICITY
2298 EV_P; 2596 EV_P;
2299 ECB_MEMORY_FENCE_ACQUIRE; 2597 ECB_MEMORY_FENCE_ACQUIRE;
2300 EV_A = signals [signum - 1].loop; 2598 EV_A = signals [signum - 1].loop;
… …
2315#endif 2613#endif
2316 2614
2317 ev_feed_signal (signum); 2615 ev_feed_signal (signum);
2318} 2616}
2319 2617
2320void noinline 2618ecb_noinline
2619void
2321ev_feed_signal_event (EV_P_ int signum) EV_THROW 2620ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2322{ 2621{
2323 WL w; 2622 WL w;
2324 2623
2325 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2624 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2326 return; 2625 return;
2327 2626
2328 --signum; 2627 --signum;
2329 2628
2330#if EV_MULTIPLICITY 2629#if EV_MULTIPLICITY
2331 /* it is permissible to try to feed a signal to the wrong loop */ 2630 /* it is permissible to try to feed a signal to the wrong loop */
2332 /* or, likely more useful, feeding a signal nobody is waiting for */ 2631 /* or, likely more useful, feeding a signal nobody is waiting for */
2333 2632
2334 if (expect_false (signals [signum].loop != EV_A)) 2633 if (ecb_expect_false (signals [signum].loop != EV_A))
2335 return; 2634 return;
2336#endif 2635#endif
2337 2636
2338 signals [signum].pending = 0; 2637 signals [signum].pending = 0;
2339 ECB_MEMORY_FENCE_RELEASE; 2638 ECB_MEMORY_FENCE_RELEASE;
… …
2435# include "ev_kqueue.c" 2734# include "ev_kqueue.c"
2436#endif 2735#endif
2437#if EV_USE_EPOLL 2736#if EV_USE_EPOLL
2438# include "ev_epoll.c" 2737# include "ev_epoll.c"
2439#endif 2738#endif
2739#if EV_USE_LINUXAIO
2740# include "ev_linuxaio.c"
2741#endif
2440#if EV_USE_POLL 2742#if EV_USE_POLL
2441# include "ev_poll.c" 2743# include "ev_poll.c"
2442#endif 2744#endif
2443#if EV_USE_SELECT 2745#if EV_USE_SELECT
2444# include "ev_select.c" 2746# include "ev_select.c"
2445#endif 2747#endif
2446 2748
2447int ecb_cold 2749ecb_cold int
2448ev_version_major (void) EV_THROW 2750ev_version_major (void) EV_NOEXCEPT
2449{ 2751{
2450 return EV_VERSION_MAJOR; 2752 return EV_VERSION_MAJOR;
2451} 2753}
2452 2754
2453int ecb_cold 2755ecb_cold int
2454ev_version_minor (void) EV_THROW 2756ev_version_minor (void) EV_NOEXCEPT
2455{ 2757{
2456 return EV_VERSION_MINOR; 2758 return EV_VERSION_MINOR;
2457} 2759}
2458 2760
2459/* return true if we are running with elevated privileges and should ignore env variables */ 2761/* return true if we are running with elevated privileges and should ignore env variables */
2460int inline_size ecb_cold 2762inline_size ecb_cold int
2461enable_secure (void) 2763enable_secure (void)
2462{ 2764{
2463#ifdef _WIN32 2765#ifdef _WIN32
2464 return 0; 2766 return 0;
2465#else 2767#else
2466 return getuid () != geteuid () 2768 return getuid () != geteuid ()
2467 || getgid () != getegid (); 2769 || getgid () != getegid ();
2468#endif 2770#endif
2469} 2771}
2470 2772
2471unsigned int ecb_cold 2773ecb_cold
2774unsigned int
2472ev_supported_backends (void) EV_THROW 2775ev_supported_backends (void) EV_NOEXCEPT
2473{ 2776{
2474 unsigned int flags = 0; 2777 unsigned int flags = 0;
2475 2778
2476 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2779 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2477 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2780 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2478 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2781 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2782 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2479 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2783 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2480 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2784 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2481 2785
2482 return flags; 2786 return flags;
2483} 2787}
2484 2788
2485unsigned int ecb_cold 2789ecb_cold
2790unsigned int
2486ev_recommended_backends (void) EV_THROW 2791ev_recommended_backends (void) EV_NOEXCEPT
2487{ 2792{
2488 unsigned int flags = ev_supported_backends (); 2793 unsigned int flags = ev_supported_backends ();
2489 2794
2490#ifndef __NetBSD__ 2795#ifndef __NetBSD__
2491 /* kqueue is borked on everything but netbsd apparently */ 2796 /* kqueue is borked on everything but netbsd apparently */
… …
2499#endif 2804#endif
2500#ifdef __FreeBSD__ 2805#ifdef __FreeBSD__
2501 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2806 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2502#endif 2807#endif
2503 2808
2809 /* TODO: linuxaio is very experimental */
2810#if !EV_RECOMMEND_LINUXAIO
2811 flags &= ~EVBACKEND_LINUXAIO;
2812#endif
2813
2504 return flags; 2814 return flags;
2505} 2815}
2506 2816
2507unsigned int ecb_cold 2817ecb_cold
2818unsigned int
2508ev_embeddable_backends (void) EV_THROW 2819ev_embeddable_backends (void) EV_NOEXCEPT
2509{ 2820{
2510 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511 2822
2512 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2823 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2513 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2824 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2515 2826
2516 return flags; 2827 return flags;
2517} 2828}
2518 2829
2519unsigned int 2830unsigned int
2520ev_backend (EV_P) EV_THROW 2831ev_backend (EV_P) EV_NOEXCEPT
2521{ 2832{
2522 return backend; 2833 return backend;
2523} 2834}
2524 2835
2525#if EV_FEATURE_API 2836#if EV_FEATURE_API
2526unsigned int 2837unsigned int
2527ev_iteration (EV_P) EV_THROW 2838ev_iteration (EV_P) EV_NOEXCEPT
2528{ 2839{
2529 return loop_count; 2840 return loop_count;
2530} 2841}
2531 2842
2532unsigned int 2843unsigned int
2533ev_depth (EV_P) EV_THROW 2844ev_depth (EV_P) EV_NOEXCEPT
2534{ 2845{
2535 return loop_depth; 2846 return loop_depth;
2536} 2847}
2537 2848
2538void 2849void
2539ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2850ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2540{ 2851{
2541 io_blocktime = interval; 2852 io_blocktime = interval;
2542} 2853}
2543 2854
2544void 2855void
2545ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2856ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2546{ 2857{
2547 timeout_blocktime = interval; 2858 timeout_blocktime = interval;
2548} 2859}
2549 2860
2550void 2861void
2551ev_set_userdata (EV_P_ void *data) EV_THROW 2862ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2552{ 2863{
2553 userdata = data; 2864 userdata = data;
2554} 2865}
2555 2866
2556void * 2867void *
2557ev_userdata (EV_P) EV_THROW 2868ev_userdata (EV_P) EV_NOEXCEPT
2558{ 2869{
2559 return userdata; 2870 return userdata;
2560} 2871}
2561 2872
2562void 2873void
2563ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2874ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2564{ 2875{
2565 invoke_cb = invoke_pending_cb; 2876 invoke_cb = invoke_pending_cb;
2566} 2877}
2567 2878
2568void 2879void
2569ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2880ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2570{ 2881{
2571 release_cb = release; 2882 release_cb = release;
2572 acquire_cb = acquire; 2883 acquire_cb = acquire;
2573} 2884}
2574#endif 2885#endif
2575 2886
2576/* initialise a loop structure, must be zero-initialised */ 2887/* initialise a loop structure, must be zero-initialised */
2577static void noinline ecb_cold 2888ecb_noinline ecb_cold
2889static void
2578loop_init (EV_P_ unsigned int flags) EV_THROW 2890loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2579{ 2891{
2580 if (!backend) 2892 if (!backend)
2581 { 2893 {
2582 origflags = flags; 2894 origflags = flags;
2583 2895
… …
2641 2953
2642 if (!(flags & EVBACKEND_MASK)) 2954 if (!(flags & EVBACKEND_MASK))
2643 flags |= ev_recommended_backends (); 2955 flags |= ev_recommended_backends ();
2644 2956
2645#if EV_USE_IOCP 2957#if EV_USE_IOCP
2646 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2958 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2647#endif 2959#endif
2648#if EV_USE_PORT 2960#if EV_USE_PORT
2649 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2650#endif 2962#endif
2651#if EV_USE_KQUEUE 2963#if EV_USE_KQUEUE
2652 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2964 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2965#endif
2966#if EV_USE_LINUXAIO
2967 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2653#endif 2968#endif
2654#if EV_USE_EPOLL 2969#if EV_USE_EPOLL
2655 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2970 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2656#endif 2971#endif
2657#if EV_USE_POLL 2972#if EV_USE_POLL
2658 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2973 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2659#endif 2974#endif
2660#if EV_USE_SELECT 2975#if EV_USE_SELECT
2661 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2976 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2662#endif 2977#endif
2663 2978
2664 ev_prepare_init (&pending_w, pendingcb); 2979 ev_prepare_init (&pending_w, pendingcb);
2665 2980
2666#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2981#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2669#endif 2984#endif
2670 } 2985 }
2671} 2986}
2672 2987
2673/* free up a loop structure */ 2988/* free up a loop structure */
2674void ecb_cold 2989ecb_cold
2990void
2675ev_loop_destroy (EV_P) 2991ev_loop_destroy (EV_P)
2676{ 2992{
2677 int i; 2993 int i;
2678 2994
2679#if EV_MULTIPLICITY 2995#if EV_MULTIPLICITY
… …
2682 return; 2998 return;
2683#endif 2999#endif
2684 3000
2685#if EV_CLEANUP_ENABLE 3001#if EV_CLEANUP_ENABLE
2686 /* queue cleanup watchers (and execute them) */ 3002 /* queue cleanup watchers (and execute them) */
2687 if (expect_false (cleanupcnt)) 3003 if (ecb_expect_false (cleanupcnt))
2688 { 3004 {
2689 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3005 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2690 EV_INVOKE_PENDING; 3006 EV_INVOKE_PENDING;
2691 } 3007 }
2692#endif 3008#endif
… …
2720 3036
2721 if (backend_fd >= 0) 3037 if (backend_fd >= 0)
2722 close (backend_fd); 3038 close (backend_fd);
2723 3039
2724#if EV_USE_IOCP 3040#if EV_USE_IOCP
2725 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3041 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2726#endif 3042#endif
2727#if EV_USE_PORT 3043#if EV_USE_PORT
2728 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2729#endif 3045#endif
2730#if EV_USE_KQUEUE 3046#if EV_USE_KQUEUE
2731 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3047 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3048#endif
3049#if EV_USE_LINUXAIO
3050 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2732#endif 3051#endif
2733#if EV_USE_EPOLL 3052#if EV_USE_EPOLL
2734 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3053 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2735#endif 3054#endif
2736#if EV_USE_POLL 3055#if EV_USE_POLL
2737 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3056 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2738#endif 3057#endif
2739#if EV_USE_SELECT 3058#if EV_USE_SELECT
2740 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3059 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2741#endif 3060#endif
2742 3061
2743 for (i = NUMPRI; i--; ) 3062 for (i = NUMPRI; i--; )
2744 { 3063 {
2745 array_free (pending, [i]); 3064 array_free (pending, [i]);
… …
2787 3106
2788inline_size void 3107inline_size void
2789loop_fork (EV_P) 3108loop_fork (EV_P)
2790{ 3109{
2791#if EV_USE_PORT 3110#if EV_USE_PORT
2792 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2793#endif 3112#endif
2794#if EV_USE_KQUEUE 3113#if EV_USE_KQUEUE
2795 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3114 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3115#endif
3116#if EV_USE_LINUXAIO
3117 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2796#endif 3118#endif
2797#if EV_USE_EPOLL 3119#if EV_USE_EPOLL
2798 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2799#endif 3121#endif
2800#if EV_USE_INOTIFY 3122#if EV_USE_INOTIFY
2801 infy_fork (EV_A); 3123 infy_fork (EV_A);
2802#endif 3124#endif
2803 3125
2804#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805 if (ev_is_active (&pipe_w)) 3127 if (ev_is_active (&pipe_w) && postfork != 2)
2806 { 3128 {
2807 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3129 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2808 3130
2809 ev_ref (EV_A); 3131 ev_ref (EV_A);
2810 ev_io_stop (EV_A_ &pipe_w); 3132 ev_io_stop (EV_A_ &pipe_w);
… …
2821 postfork = 0; 3143 postfork = 0;
2822} 3144}
2823 3145
2824#if EV_MULTIPLICITY 3146#if EV_MULTIPLICITY
2825 3147
3148ecb_cold
2826struct ev_loop * ecb_cold 3149struct ev_loop *
2827ev_loop_new (unsigned int flags) EV_THROW 3150ev_loop_new (unsigned int flags) EV_NOEXCEPT
2828{ 3151{
2829 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3152 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830 3153
2831 memset (EV_A, 0, sizeof (struct ev_loop)); 3154 memset (EV_A, 0, sizeof (struct ev_loop));
2832 loop_init (EV_A_ flags); 3155 loop_init (EV_A_ flags);
… …
2839} 3162}
2840 3163
2841#endif /* multiplicity */ 3164#endif /* multiplicity */
2842 3165
2843#if EV_VERIFY 3166#if EV_VERIFY
2844static void noinline ecb_cold 3167ecb_noinline ecb_cold
3168static void
2845verify_watcher (EV_P_ W w) 3169verify_watcher (EV_P_ W w)
2846{ 3170{
2847 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3171 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2848 3172
2849 if (w->pending) 3173 if (w->pending)
2850 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3174 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2851} 3175}
2852 3176
2853static void noinline ecb_cold 3177ecb_noinline ecb_cold
3178static void
2854verify_heap (EV_P_ ANHE *heap, int N) 3179verify_heap (EV_P_ ANHE *heap, int N)
2855{ 3180{
2856 int i; 3181 int i;
2857 3182
2858 for (i = HEAP0; i < N + HEAP0; ++i) 3183 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2863 3188
2864 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3189 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865 } 3190 }
2866} 3191}
2867 3192
2868static void noinline ecb_cold 3193ecb_noinline ecb_cold
3194static void
2869array_verify (EV_P_ W *ws, int cnt) 3195array_verify (EV_P_ W *ws, int cnt)
2870{ 3196{
2871 while (cnt--) 3197 while (cnt--)
2872 { 3198 {
2873 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3199 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2876} 3202}
2877#endif 3203#endif
2878 3204
2879#if EV_FEATURE_API 3205#if EV_FEATURE_API
2880void ecb_cold 3206void ecb_cold
2881ev_verify (EV_P) EV_THROW 3207ev_verify (EV_P) EV_NOEXCEPT
2882{ 3208{
2883#if EV_VERIFY 3209#if EV_VERIFY
2884 int i; 3210 int i;
2885 WL w, w2; 3211 WL w, w2;
2886 3212
… …
2962#endif 3288#endif
2963} 3289}
2964#endif 3290#endif
2965 3291
2966#if EV_MULTIPLICITY 3292#if EV_MULTIPLICITY
3293ecb_cold
2967struct ev_loop * ecb_cold 3294struct ev_loop *
2968#else 3295#else
2969int 3296int
2970#endif 3297#endif
2971ev_default_loop (unsigned int flags) EV_THROW 3298ev_default_loop (unsigned int flags) EV_NOEXCEPT
2972{ 3299{
2973 if (!ev_default_loop_ptr) 3300 if (!ev_default_loop_ptr)
2974 { 3301 {
2975#if EV_MULTIPLICITY 3302#if EV_MULTIPLICITY
2976 EV_P = ev_default_loop_ptr = &default_loop_struct; 3303 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2995 3322
2996 return ev_default_loop_ptr; 3323 return ev_default_loop_ptr;
2997} 3324}
2998 3325
2999void 3326void
3000ev_loop_fork (EV_P) EV_THROW 3327ev_loop_fork (EV_P) EV_NOEXCEPT
3001{ 3328{
3002 postfork = 1; 3329 postfork = 1;
3003} 3330}
3004 3331
3005/*****************************************************************************/ 3332/*****************************************************************************/
… …
3009{ 3336{
3010 EV_CB_INVOKE ((W)w, revents); 3337 EV_CB_INVOKE ((W)w, revents);
3011} 3338}
3012 3339
3013unsigned int 3340unsigned int
3014ev_pending_count (EV_P) EV_THROW 3341ev_pending_count (EV_P) EV_NOEXCEPT
3015{ 3342{
3016 int pri; 3343 int pri;
3017 unsigned int count = 0; 3344 unsigned int count = 0;
3018 3345
3019 for (pri = NUMPRI; pri--; ) 3346 for (pri = NUMPRI; pri--; )
3020 count += pendingcnt [pri]; 3347 count += pendingcnt [pri];
3021 3348
3022 return count; 3349 return count;
3023} 3350}
3024 3351
3025void noinline 3352ecb_noinline
3353void
3026ev_invoke_pending (EV_P) 3354ev_invoke_pending (EV_P)
3027{ 3355{
3028 pendingpri = NUMPRI; 3356 pendingpri = NUMPRI;
3029 3357
3030 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3358 do
3031 { 3359 {
3032 --pendingpri; 3360 --pendingpri;
3033 3361
3362 /* pendingpri possibly gets modified in the inner loop */
3034 while (pendingcnt [pendingpri]) 3363 while (pendingcnt [pendingpri])
3035 { 3364 {
3036 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3365 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3037 3366
3038 p->w->pending = 0; 3367 p->w->pending = 0;
3039 EV_CB_INVOKE (p->w, p->events); 3368 EV_CB_INVOKE (p->w, p->events);
3040 EV_FREQUENT_CHECK; 3369 EV_FREQUENT_CHECK;
3041 } 3370 }
3042 } 3371 }
3372 while (pendingpri);
3043} 3373}
3044 3374
3045#if EV_IDLE_ENABLE 3375#if EV_IDLE_ENABLE
3046/* make idle watchers pending. this handles the "call-idle */ 3376/* make idle watchers pending. this handles the "call-idle */
3047/* only when higher priorities are idle" logic */ 3377/* only when higher priorities are idle" logic */
3048inline_size void 3378inline_size void
3049idle_reify (EV_P) 3379idle_reify (EV_P)
3050{ 3380{
3051 if (expect_false (idleall)) 3381 if (ecb_expect_false (idleall))
3052 { 3382 {
3053 int pri; 3383 int pri;
3054 3384
3055 for (pri = NUMPRI; pri--; ) 3385 for (pri = NUMPRI; pri--; )
3056 { 3386 {
… …
3105 } 3435 }
3106} 3436}
3107 3437
3108#if EV_PERIODIC_ENABLE 3438#if EV_PERIODIC_ENABLE
3109 3439
3110static void noinline 3440ecb_noinline
3441static void
3111periodic_recalc (EV_P_ ev_periodic *w) 3442periodic_recalc (EV_P_ ev_periodic *w)
3112{ 3443{
3113 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3444 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3114 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3445 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3115 3446
… …
3117 while (at <= ev_rt_now) 3448 while (at <= ev_rt_now)
3118 { 3449 {
3119 ev_tstamp nat = at + w->interval; 3450 ev_tstamp nat = at + w->interval;
3120 3451
3121 /* when resolution fails us, we use ev_rt_now */ 3452 /* when resolution fails us, we use ev_rt_now */
3122 if (expect_false (nat == at)) 3453 if (ecb_expect_false (nat == at))
3123 { 3454 {
3124 at = ev_rt_now; 3455 at = ev_rt_now;
3125 break; 3456 break;
3126 } 3457 }
3127 3458
… …
3173 } 3504 }
3174} 3505}
3175 3506
3176/* simply recalculate all periodics */ 3507/* simply recalculate all periodics */
3177/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3508/* TODO: maybe ensure that at least one event happens when jumping forward? */
3178static void noinline ecb_cold 3509ecb_noinline ecb_cold
3510static void
3179periodics_reschedule (EV_P) 3511periodics_reschedule (EV_P)
3180{ 3512{
3181 int i; 3513 int i;
3182 3514
3183 /* adjust periodics after time jump */ 3515 /* adjust periodics after time jump */
… …
3196 reheap (periodics, periodiccnt); 3528 reheap (periodics, periodiccnt);
3197} 3529}
3198#endif 3530#endif
3199 3531
3200/* adjust all timers by a given offset */ 3532/* adjust all timers by a given offset */
3201static void noinline ecb_cold 3533ecb_noinline ecb_cold
3534static void
3202timers_reschedule (EV_P_ ev_tstamp adjust) 3535timers_reschedule (EV_P_ ev_tstamp adjust)
3203{ 3536{
3204 int i; 3537 int i;
3205 3538
3206 for (i = 0; i < timercnt; ++i) 3539 for (i = 0; i < timercnt; ++i)
… …
3215/* also detect if there was a timejump, and act accordingly */ 3548/* also detect if there was a timejump, and act accordingly */
3216inline_speed void 3549inline_speed void
3217time_update (EV_P_ ev_tstamp max_block) 3550time_update (EV_P_ ev_tstamp max_block)
3218{ 3551{
3219#if EV_USE_MONOTONIC 3552#if EV_USE_MONOTONIC
3220 if (expect_true (have_monotonic)) 3553 if (ecb_expect_true (have_monotonic))
3221 { 3554 {
3222 int i; 3555 int i;
3223 ev_tstamp odiff = rtmn_diff; 3556 ev_tstamp odiff = rtmn_diff;
3224 3557
3225 mn_now = get_clock (); 3558 mn_now = get_clock ();
3226 3559
3227 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3560 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3228 /* interpolate in the meantime */ 3561 /* interpolate in the meantime */
3229 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3562 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3230 { 3563 {
3231 ev_rt_now = rtmn_diff + mn_now; 3564 ev_rt_now = rtmn_diff + mn_now;
3232 return; 3565 return;
3233 } 3566 }
3234 3567
… …
3248 ev_tstamp diff; 3581 ev_tstamp diff;
3249 rtmn_diff = ev_rt_now - mn_now; 3582 rtmn_diff = ev_rt_now - mn_now;
3250 3583
3251 diff = odiff - rtmn_diff; 3584 diff = odiff - rtmn_diff;
3252 3585
3253 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3586 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3254 return; /* all is well */ 3587 return; /* all is well */
3255 3588
3256 ev_rt_now = ev_time (); 3589 ev_rt_now = ev_time ();
3257 mn_now = get_clock (); 3590 mn_now = get_clock ();
3258 now_floor = mn_now; 3591 now_floor = mn_now;
… …
3267 else 3600 else
3268#endif 3601#endif
3269 { 3602 {
3270 ev_rt_now = ev_time (); 3603 ev_rt_now = ev_time ();
3271 3604
3272 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3605 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3273 { 3606 {
3274 /* adjust timers. this is easy, as the offset is the same for all of them */ 3607 /* adjust timers. this is easy, as the offset is the same for all of them */
3275 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3608 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3276#if EV_PERIODIC_ENABLE 3609#if EV_PERIODIC_ENABLE
3277 periodics_reschedule (EV_A); 3610 periodics_reschedule (EV_A);
… …
3300#if EV_VERIFY >= 2 3633#if EV_VERIFY >= 2
3301 ev_verify (EV_A); 3634 ev_verify (EV_A);
3302#endif 3635#endif
3303 3636
3304#ifndef _WIN32 3637#ifndef _WIN32
3305 if (expect_false (curpid)) /* penalise the forking check even more */ 3638 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3306 if (expect_false (getpid () != curpid)) 3639 if (ecb_expect_false (getpid () != curpid))
3307 { 3640 {
3308 curpid = getpid (); 3641 curpid = getpid ();
3309 postfork = 1; 3642 postfork = 1;
3310 } 3643 }
3311#endif 3644#endif
3312 3645
3313#if EV_FORK_ENABLE 3646#if EV_FORK_ENABLE
3314 /* we might have forked, so queue fork handlers */ 3647 /* we might have forked, so queue fork handlers */
3315 if (expect_false (postfork)) 3648 if (ecb_expect_false (postfork))
3316 if (forkcnt) 3649 if (forkcnt)
3317 { 3650 {
3318 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3651 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3319 EV_INVOKE_PENDING; 3652 EV_INVOKE_PENDING;
3320 } 3653 }
3321#endif 3654#endif
3322 3655
3323#if EV_PREPARE_ENABLE 3656#if EV_PREPARE_ENABLE
3324 /* queue prepare watchers (and execute them) */ 3657 /* queue prepare watchers (and execute them) */
3325 if (expect_false (preparecnt)) 3658 if (ecb_expect_false (preparecnt))
3326 { 3659 {
3327 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3660 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3328 EV_INVOKE_PENDING; 3661 EV_INVOKE_PENDING;
3329 } 3662 }
3330#endif 3663#endif
3331 3664
3332 if (expect_false (loop_done)) 3665 if (ecb_expect_false (loop_done))
3333 break; 3666 break;
3334 3667
3335 /* we might have forked, so reify kernel state if necessary */ 3668 /* we might have forked, so reify kernel state if necessary */
3336 if (expect_false (postfork)) 3669 if (ecb_expect_false (postfork))
3337 loop_fork (EV_A); 3670 loop_fork (EV_A);
3338 3671
3339 /* update fd-related kernel structures */ 3672 /* update fd-related kernel structures */
3340 fd_reify (EV_A); 3673 fd_reify (EV_A);
3341 3674
… …
3353 /* from now on, we want a pipe-wake-up */ 3686 /* from now on, we want a pipe-wake-up */
3354 pipe_write_wanted = 1; 3687 pipe_write_wanted = 1;
3355 3688
3356 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3689 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3357 3690
3358 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3691 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3359 { 3692 {
3360 waittime = MAX_BLOCKTIME; 3693 waittime = MAX_BLOCKTIME;
3361 3694
3362 if (timercnt) 3695 if (timercnt)
3363 { 3696 {
… …
3372 if (waittime > to) waittime = to; 3705 if (waittime > to) waittime = to;
3373 } 3706 }
3374#endif 3707#endif
3375 3708
3376 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3709 /* don't let timeouts decrease the waittime below timeout_blocktime */
3377 if (expect_false (waittime < timeout_blocktime)) 3710 if (ecb_expect_false (waittime < timeout_blocktime))
3378 waittime = timeout_blocktime; 3711 waittime = timeout_blocktime;
3379 3712
3380 /* at this point, we NEED to wait, so we have to ensure */ 3713 /* at this point, we NEED to wait, so we have to ensure */
3381 /* to pass a minimum nonzero value to the backend */ 3714 /* to pass a minimum nonzero value to the backend */
3382 if (expect_false (waittime < backend_mintime)) 3715 if (ecb_expect_false (waittime < backend_mintime))
3383 waittime = backend_mintime; 3716 waittime = backend_mintime;
3384 3717
3385 /* extra check because io_blocktime is commonly 0 */ 3718 /* extra check because io_blocktime is commonly 0 */
3386 if (expect_false (io_blocktime)) 3719 if (ecb_expect_false (io_blocktime))
3387 { 3720 {
3388 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3721 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3389 3722
3390 if (sleeptime > waittime - backend_mintime) 3723 if (sleeptime > waittime - backend_mintime)
3391 sleeptime = waittime - backend_mintime; 3724 sleeptime = waittime - backend_mintime;
3392 3725
3393 if (expect_true (sleeptime > 0.)) 3726 if (ecb_expect_true (sleeptime > 0.))
3394 { 3727 {
3395 ev_sleep (sleeptime); 3728 ev_sleep (sleeptime);
3396 waittime -= sleeptime; 3729 waittime -= sleeptime;
3397 } 3730 }
3398 } 3731 }
… …
3412 { 3745 {
3413 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3746 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3414 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3747 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3415 } 3748 }
3416 3749
3417
3418 /* update ev_rt_now, do magic */ 3750 /* update ev_rt_now, do magic */
3419 time_update (EV_A_ waittime + sleeptime); 3751 time_update (EV_A_ waittime + sleeptime);
3420 } 3752 }
3421 3753
3422 /* queue pending timers and reschedule them */ 3754 /* queue pending timers and reschedule them */
… …
3430 idle_reify (EV_A); 3762 idle_reify (EV_A);
3431#endif 3763#endif
3432 3764
3433#if EV_CHECK_ENABLE 3765#if EV_CHECK_ENABLE
3434 /* queue check watchers, to be executed first */ 3766 /* queue check watchers, to be executed first */
3435 if (expect_false (checkcnt)) 3767 if (ecb_expect_false (checkcnt))
3436 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3768 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3437#endif 3769#endif
3438 3770
3439 EV_INVOKE_PENDING; 3771 EV_INVOKE_PENDING;
3440 } 3772 }
3441 while (expect_true ( 3773 while (ecb_expect_true (
3442 activecnt 3774 activecnt
3443 && !loop_done 3775 && !loop_done
3444 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3776 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3445 )); 3777 ));
3446 3778
… …
3453 3785
3454 return activecnt; 3786 return activecnt;
3455} 3787}
3456 3788
3457void 3789void
3458ev_break (EV_P_ int how) EV_THROW 3790ev_break (EV_P_ int how) EV_NOEXCEPT
3459{ 3791{
3460 loop_done = how; 3792 loop_done = how;
3461} 3793}
3462 3794
3463void 3795void
3464ev_ref (EV_P) EV_THROW 3796ev_ref (EV_P) EV_NOEXCEPT
3465{ 3797{
3466 ++activecnt; 3798 ++activecnt;
3467} 3799}
3468 3800
3469void 3801void
3470ev_unref (EV_P) EV_THROW 3802ev_unref (EV_P) EV_NOEXCEPT
3471{ 3803{
3472 --activecnt; 3804 --activecnt;
3473} 3805}
3474 3806
3475void 3807void
3476ev_now_update (EV_P) EV_THROW 3808ev_now_update (EV_P) EV_NOEXCEPT
3477{ 3809{
3478 time_update (EV_A_ 1e100); 3810 time_update (EV_A_ 1e100);
3479} 3811}
3480 3812
3481void 3813void
3482ev_suspend (EV_P) EV_THROW 3814ev_suspend (EV_P) EV_NOEXCEPT
3483{ 3815{
3484 ev_now_update (EV_A); 3816 ev_now_update (EV_A);
3485} 3817}
3486 3818
3487void 3819void
3488ev_resume (EV_P) EV_THROW 3820ev_resume (EV_P) EV_NOEXCEPT
3489{ 3821{
3490 ev_tstamp mn_prev = mn_now; 3822 ev_tstamp mn_prev = mn_now;
3491 3823
3492 ev_now_update (EV_A); 3824 ev_now_update (EV_A);
3493 timers_reschedule (EV_A_ mn_now - mn_prev); 3825 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3510inline_size void 3842inline_size void
3511wlist_del (WL *head, WL elem) 3843wlist_del (WL *head, WL elem)
3512{ 3844{
3513 while (*head) 3845 while (*head)
3514 { 3846 {
3515 if (expect_true (*head == elem)) 3847 if (ecb_expect_true (*head == elem))
3516 { 3848 {
3517 *head = elem->next; 3849 *head = elem->next;
3518 break; 3850 break;
3519 } 3851 }
3520 3852
… …
3532 w->pending = 0; 3864 w->pending = 0;
3533 } 3865 }
3534} 3866}
3535 3867
3536int 3868int
3537ev_clear_pending (EV_P_ void *w) EV_THROW 3869ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3538{ 3870{
3539 W w_ = (W)w; 3871 W w_ = (W)w;
3540 int pending = w_->pending; 3872 int pending = w_->pending;
3541 3873
3542 if (expect_true (pending)) 3874 if (ecb_expect_true (pending))
3543 { 3875 {
3544 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3876 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3545 p->w = (W)&pending_w; 3877 p->w = (W)&pending_w;
3546 w_->pending = 0; 3878 w_->pending = 0;
3547 return p->events; 3879 return p->events;
… …
3574 w->active = 0; 3906 w->active = 0;
3575} 3907}
3576 3908
3577/*****************************************************************************/ 3909/*****************************************************************************/
3578 3910
3579void noinline 3911ecb_noinline
3912void
3580ev_io_start (EV_P_ ev_io *w) EV_THROW 3913ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3581{ 3914{
3582 int fd = w->fd; 3915 int fd = w->fd;
3583 3916
3584 if (expect_false (ev_is_active (w))) 3917 if (ecb_expect_false (ev_is_active (w)))
3585 return; 3918 return;
3586 3919
3587 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3920 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3588 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3921 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3589 3922
3923#if EV_VERIFY >= 2
3924 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
3925#endif
3590 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3591 3927
3592 ev_start (EV_A_ (W)w, 1); 3928 ev_start (EV_A_ (W)w, 1);
3593 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3929 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3594 wlist_add (&anfds[fd].head, (WL)w); 3930 wlist_add (&anfds[fd].head, (WL)w);
3595 3931
3596 /* common bug, apparently */ 3932 /* common bug, apparently */
3597 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3933 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3598 3934
… …
3600 w->events &= ~EV__IOFDSET; 3936 w->events &= ~EV__IOFDSET;
3601 3937
3602 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3603} 3939}
3604 3940
3605void noinline 3941ecb_noinline
3942void
3606ev_io_stop (EV_P_ ev_io *w) EV_THROW 3943ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3607{ 3944{
3608 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 3946 if (ecb_expect_false (!ev_is_active (w)))
3610 return; 3947 return;
3611 3948
3612 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3949 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3613 3950
3951#if EV_VERIFY >= 2
3952 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
3953#endif
3614 EV_FREQUENT_CHECK; 3954 EV_FREQUENT_CHECK;
3615 3955
3616 wlist_del (&anfds[w->fd].head, (WL)w); 3956 wlist_del (&anfds[w->fd].head, (WL)w);
3617 ev_stop (EV_A_ (W)w); 3957 ev_stop (EV_A_ (W)w);
3618 3958
3619 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3959 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620 3960
3621 EV_FREQUENT_CHECK; 3961 EV_FREQUENT_CHECK;
3622} 3962}
3623 3963
3624void noinline 3964ecb_noinline
3965void
3625ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3966ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 3967{
3627 if (expect_false (ev_is_active (w))) 3968 if (ecb_expect_false (ev_is_active (w)))
3628 return; 3969 return;
3629 3970
3630 ev_at (w) += mn_now; 3971 ev_at (w) += mn_now;
3631 3972
3632 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 3973 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3633 3974
3634 EV_FREQUENT_CHECK; 3975 EV_FREQUENT_CHECK;
3635 3976
3636 ++timercnt; 3977 ++timercnt;
3637 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3978 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3638 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3979 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3639 ANHE_w (timers [ev_active (w)]) = (WT)w; 3980 ANHE_w (timers [ev_active (w)]) = (WT)w;
3640 ANHE_at_cache (timers [ev_active (w)]); 3981 ANHE_at_cache (timers [ev_active (w)]);
3641 upheap (timers, ev_active (w)); 3982 upheap (timers, ev_active (w));
3642 3983
3643 EV_FREQUENT_CHECK; 3984 EV_FREQUENT_CHECK;
3644 3985
3645 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3986 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3646} 3987}
3647 3988
3648void noinline 3989ecb_noinline
3990void
3649ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3991ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3650{ 3992{
3651 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
3652 if (expect_false (!ev_is_active (w))) 3994 if (ecb_expect_false (!ev_is_active (w)))
3653 return; 3995 return;
3654 3996
3655 EV_FREQUENT_CHECK; 3997 EV_FREQUENT_CHECK;
3656 3998
3657 { 3999 {
… …
3659 4001
3660 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4002 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3661 4003
3662 --timercnt; 4004 --timercnt;
3663 4005
3664 if (expect_true (active < timercnt + HEAP0)) 4006 if (ecb_expect_true (active < timercnt + HEAP0))
3665 { 4007 {
3666 timers [active] = timers [timercnt + HEAP0]; 4008 timers [active] = timers [timercnt + HEAP0];
3667 adjustheap (timers, timercnt, active); 4009 adjustheap (timers, timercnt, active);
3668 } 4010 }
3669 } 4011 }
… …
3673 ev_stop (EV_A_ (W)w); 4015 ev_stop (EV_A_ (W)w);
3674 4016
3675 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
3676} 4018}
3677 4019
3678void noinline 4020ecb_noinline
4021void
3679ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4022ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3680{ 4023{
3681 EV_FREQUENT_CHECK; 4024 EV_FREQUENT_CHECK;
3682 4025
3683 clear_pending (EV_A_ (W)w); 4026 clear_pending (EV_A_ (W)w);
3684 4027
… …
3701 4044
3702 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3703} 4046}
3704 4047
3705ev_tstamp 4048ev_tstamp
3706ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4049ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3707{ 4050{
3708 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4051 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3709} 4052}
3710 4053
3711#if EV_PERIODIC_ENABLE 4054#if EV_PERIODIC_ENABLE
3712void noinline 4055ecb_noinline
4056void
3713ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4057ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3714{ 4058{
3715 if (expect_false (ev_is_active (w))) 4059 if (ecb_expect_false (ev_is_active (w)))
3716 return; 4060 return;
3717 4061
3718 if (w->reschedule_cb) 4062 if (w->reschedule_cb)
3719 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4063 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3720 else if (w->interval) 4064 else if (w->interval)
… …
3727 4071
3728 EV_FREQUENT_CHECK; 4072 EV_FREQUENT_CHECK;
3729 4073
3730 ++periodiccnt; 4074 ++periodiccnt;
3731 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4075 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3732 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4076 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3733 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4077 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3734 ANHE_at_cache (periodics [ev_active (w)]); 4078 ANHE_at_cache (periodics [ev_active (w)]);
3735 upheap (periodics, ev_active (w)); 4079 upheap (periodics, ev_active (w));
3736 4080
3737 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3738 4082
3739 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4083 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3740} 4084}
3741 4085
3742void noinline 4086ecb_noinline
4087void
3743ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4088ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3744{ 4089{
3745 clear_pending (EV_A_ (W)w); 4090 clear_pending (EV_A_ (W)w);
3746 if (expect_false (!ev_is_active (w))) 4091 if (ecb_expect_false (!ev_is_active (w)))
3747 return; 4092 return;
3748 4093
3749 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3750 4095
3751 { 4096 {
… …
3753 4098
3754 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4099 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3755 4100
3756 --periodiccnt; 4101 --periodiccnt;
3757 4102
3758 if (expect_true (active < periodiccnt + HEAP0)) 4103 if (ecb_expect_true (active < periodiccnt + HEAP0))
3759 { 4104 {
3760 periodics [active] = periodics [periodiccnt + HEAP0]; 4105 periodics [active] = periodics [periodiccnt + HEAP0];
3761 adjustheap (periodics, periodiccnt, active); 4106 adjustheap (periodics, periodiccnt, active);
3762 } 4107 }
3763 } 4108 }
… …
3765 ev_stop (EV_A_ (W)w); 4110 ev_stop (EV_A_ (W)w);
3766 4111
3767 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3768} 4113}
3769 4114
3770void noinline 4115ecb_noinline
4116void
3771ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4117ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3772{ 4118{
3773 /* TODO: use adjustheap and recalculation */ 4119 /* TODO: use adjustheap and recalculation */
3774 ev_periodic_stop (EV_A_ w); 4120 ev_periodic_stop (EV_A_ w);
3775 ev_periodic_start (EV_A_ w); 4121 ev_periodic_start (EV_A_ w);
3776} 4122}
… …
3780# define SA_RESTART 0 4126# define SA_RESTART 0
3781#endif 4127#endif
3782 4128
3783#if EV_SIGNAL_ENABLE 4129#if EV_SIGNAL_ENABLE
3784 4130
3785void noinline 4131ecb_noinline
4132void
3786ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4133ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3787{ 4134{
3788 if (expect_false (ev_is_active (w))) 4135 if (ecb_expect_false (ev_is_active (w)))
3789 return; 4136 return;
3790 4137
3791 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4138 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3792 4139
3793#if EV_MULTIPLICITY 4140#if EV_MULTIPLICITY
… …
3862 } 4209 }
3863 4210
3864 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
3865} 4212}
3866 4213
3867void noinline 4214ecb_noinline
4215void
3868ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4216ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3869{ 4217{
3870 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3871 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3872 return; 4220 return;
3873 4221
3874 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3875 4223
3876 wlist_del (&signals [w->signum - 1].head, (WL)w); 4224 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3904#endif 4252#endif
3905 4253
3906#if EV_CHILD_ENABLE 4254#if EV_CHILD_ENABLE
3907 4255
3908void 4256void
3909ev_child_start (EV_P_ ev_child *w) EV_THROW 4257ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3910{ 4258{
3911#if EV_MULTIPLICITY 4259#if EV_MULTIPLICITY
3912 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4260 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3913#endif 4261#endif
3914 if (expect_false (ev_is_active (w))) 4262 if (ecb_expect_false (ev_is_active (w)))
3915 return; 4263 return;
3916 4264
3917 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3918 4266
3919 ev_start (EV_A_ (W)w, 1); 4267 ev_start (EV_A_ (W)w, 1);
… …
3921 4269
3922 EV_FREQUENT_CHECK; 4270 EV_FREQUENT_CHECK;
3923} 4271}
3924 4272
3925void 4273void
3926ev_child_stop (EV_P_ ev_child *w) EV_THROW 4274ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3927{ 4275{
3928 clear_pending (EV_A_ (W)w); 4276 clear_pending (EV_A_ (W)w);
3929 if (expect_false (!ev_is_active (w))) 4277 if (ecb_expect_false (!ev_is_active (w)))
3930 return; 4278 return;
3931 4279
3932 EV_FREQUENT_CHECK; 4280 EV_FREQUENT_CHECK;
3933 4281
3934 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4282 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3948 4296
3949#define DEF_STAT_INTERVAL 5.0074891 4297#define DEF_STAT_INTERVAL 5.0074891
3950#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4298#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951#define MIN_STAT_INTERVAL 0.1074891 4299#define MIN_STAT_INTERVAL 0.1074891
3952 4300
3953static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4301ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954 4302
3955#if EV_USE_INOTIFY 4303#if EV_USE_INOTIFY
3956 4304
3957/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4305/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3958# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4306# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959 4307
3960static void noinline 4308ecb_noinline
4309static void
3961infy_add (EV_P_ ev_stat *w) 4310infy_add (EV_P_ ev_stat *w)
3962{ 4311{
3963 w->wd = inotify_add_watch (fs_fd, w->path, 4312 w->wd = inotify_add_watch (fs_fd, w->path,
3964 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4313 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4314 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4029 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4378 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030 ev_timer_again (EV_A_ &w->timer); 4379 ev_timer_again (EV_A_ &w->timer);
4031 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4380 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032} 4381}
4033 4382
4034static void noinline 4383ecb_noinline
4384static void
4035infy_del (EV_P_ ev_stat *w) 4385infy_del (EV_P_ ev_stat *w)
4036{ 4386{
4037 int slot; 4387 int slot;
4038 int wd = w->wd; 4388 int wd = w->wd;
4039 4389
… …
4046 4396
4047 /* remove this watcher, if others are watching it, they will rearm */ 4397 /* remove this watcher, if others are watching it, they will rearm */
4048 inotify_rm_watch (fs_fd, wd); 4398 inotify_rm_watch (fs_fd, wd);
4049} 4399}
4050 4400
4051static void noinline 4401ecb_noinline
4402static void
4052infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4403infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053{ 4404{
4054 if (slot < 0) 4405 if (slot < 0)
4055 /* overflow, need to check for all hash slots */ 4406 /* overflow, need to check for all hash slots */
4056 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4407 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4092 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4443 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093 ofs += sizeof (struct inotify_event) + ev->len; 4444 ofs += sizeof (struct inotify_event) + ev->len;
4094 } 4445 }
4095} 4446}
4096 4447
4097inline_size void ecb_cold 4448inline_size ecb_cold
4449void
4098ev_check_2625 (EV_P) 4450ev_check_2625 (EV_P)
4099{ 4451{
4100 /* kernels < 2.6.25 are borked 4452 /* kernels < 2.6.25 are borked
4101 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4453 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4102 */ 4454 */
… …
4192#else 4544#else
4193# define EV_LSTAT(p,b) lstat (p, b) 4545# define EV_LSTAT(p,b) lstat (p, b)
4194#endif 4546#endif
4195 4547
4196void 4548void
4197ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4549ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4198{ 4550{
4199 if (lstat (w->path, &w->attr) < 0) 4551 if (lstat (w->path, &w->attr) < 0)
4200 w->attr.st_nlink = 0; 4552 w->attr.st_nlink = 0;
4201 else if (!w->attr.st_nlink) 4553 else if (!w->attr.st_nlink)
4202 w->attr.st_nlink = 1; 4554 w->attr.st_nlink = 1;
4203} 4555}
4204 4556
4205static void noinline 4557ecb_noinline
4558static void
4206stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4559stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207{ 4560{
4208 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4561 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209 4562
4210 ev_statdata prev = w->attr; 4563 ev_statdata prev = w->attr;
… …
4241 ev_feed_event (EV_A_ w, EV_STAT); 4594 ev_feed_event (EV_A_ w, EV_STAT);
4242 } 4595 }
4243} 4596}
4244 4597
4245void 4598void
4246ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4599ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4600{
4248 if (expect_false (ev_is_active (w))) 4601 if (ecb_expect_false (ev_is_active (w)))
4249 return; 4602 return;
4250 4603
4251 ev_stat_stat (EV_A_ w); 4604 ev_stat_stat (EV_A_ w);
4252 4605
4253 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4606 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4272 4625
4273 EV_FREQUENT_CHECK; 4626 EV_FREQUENT_CHECK;
4274} 4627}
4275 4628
4276void 4629void
4277ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4630ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4278{ 4631{
4279 clear_pending (EV_A_ (W)w); 4632 clear_pending (EV_A_ (W)w);
4280 if (expect_false (!ev_is_active (w))) 4633 if (ecb_expect_false (!ev_is_active (w)))
4281 return; 4634 return;
4282 4635
4283 EV_FREQUENT_CHECK; 4636 EV_FREQUENT_CHECK;
4284 4637
4285#if EV_USE_INOTIFY 4638#if EV_USE_INOTIFY
… …
4298} 4651}
4299#endif 4652#endif
4300 4653
4301#if EV_IDLE_ENABLE 4654#if EV_IDLE_ENABLE
4302void 4655void
4303ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4656ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4304{ 4657{
4305 if (expect_false (ev_is_active (w))) 4658 if (ecb_expect_false (ev_is_active (w)))
4306 return; 4659 return;
4307 4660
4308 pri_adjust (EV_A_ (W)w); 4661 pri_adjust (EV_A_ (W)w);
4309 4662
4310 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
… …
4313 int active = ++idlecnt [ABSPRI (w)]; 4666 int active = ++idlecnt [ABSPRI (w)];
4314 4667
4315 ++idleall; 4668 ++idleall;
4316 ev_start (EV_A_ (W)w, active); 4669 ev_start (EV_A_ (W)w, active);
4317 4670
4318 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4671 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4319 idles [ABSPRI (w)][active - 1] = w; 4672 idles [ABSPRI (w)][active - 1] = w;
4320 } 4673 }
4321 4674
4322 EV_FREQUENT_CHECK; 4675 EV_FREQUENT_CHECK;
4323} 4676}
4324 4677
4325void 4678void
4326ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4679ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4327{ 4680{
4328 clear_pending (EV_A_ (W)w); 4681 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4682 if (ecb_expect_false (!ev_is_active (w)))
4330 return; 4683 return;
4331 4684
4332 EV_FREQUENT_CHECK; 4685 EV_FREQUENT_CHECK;
4333 4686
4334 { 4687 {
… …
4345} 4698}
4346#endif 4699#endif
4347 4700
4348#if EV_PREPARE_ENABLE 4701#if EV_PREPARE_ENABLE
4349void 4702void
4350ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4703ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4351{ 4704{
4352 if (expect_false (ev_is_active (w))) 4705 if (ecb_expect_false (ev_is_active (w)))
4353 return; 4706 return;
4354 4707
4355 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
4356 4709
4357 ev_start (EV_A_ (W)w, ++preparecnt); 4710 ev_start (EV_A_ (W)w, ++preparecnt);
4358 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4711 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4359 prepares [preparecnt - 1] = w; 4712 prepares [preparecnt - 1] = w;
4360 4713
4361 EV_FREQUENT_CHECK; 4714 EV_FREQUENT_CHECK;
4362} 4715}
4363 4716
4364void 4717void
4365ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4718ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4366{ 4719{
4367 clear_pending (EV_A_ (W)w); 4720 clear_pending (EV_A_ (W)w);
4368 if (expect_false (!ev_is_active (w))) 4721 if (ecb_expect_false (!ev_is_active (w)))
4369 return; 4722 return;
4370 4723
4371 EV_FREQUENT_CHECK; 4724 EV_FREQUENT_CHECK;
4372 4725
4373 { 4726 {
… …
4383} 4736}
4384#endif 4737#endif
4385 4738
4386#if EV_CHECK_ENABLE 4739#if EV_CHECK_ENABLE
4387void 4740void
4388ev_check_start (EV_P_ ev_check *w) EV_THROW 4741ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4389{ 4742{
4390 if (expect_false (ev_is_active (w))) 4743 if (ecb_expect_false (ev_is_active (w)))
4391 return; 4744 return;
4392 4745
4393 EV_FREQUENT_CHECK; 4746 EV_FREQUENT_CHECK;
4394 4747
4395 ev_start (EV_A_ (W)w, ++checkcnt); 4748 ev_start (EV_A_ (W)w, ++checkcnt);
4396 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4749 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4397 checks [checkcnt - 1] = w; 4750 checks [checkcnt - 1] = w;
4398 4751
4399 EV_FREQUENT_CHECK; 4752 EV_FREQUENT_CHECK;
4400} 4753}
4401 4754
4402void 4755void
4403ev_check_stop (EV_P_ ev_check *w) EV_THROW 4756ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4404{ 4757{
4405 clear_pending (EV_A_ (W)w); 4758 clear_pending (EV_A_ (W)w);
4406 if (expect_false (!ev_is_active (w))) 4759 if (ecb_expect_false (!ev_is_active (w)))
4407 return; 4760 return;
4408 4761
4409 EV_FREQUENT_CHECK; 4762 EV_FREQUENT_CHECK;
4410 4763
4411 { 4764 {
… …
4420 EV_FREQUENT_CHECK; 4773 EV_FREQUENT_CHECK;
4421} 4774}
4422#endif 4775#endif
4423 4776
4424#if EV_EMBED_ENABLE 4777#if EV_EMBED_ENABLE
4425void noinline 4778ecb_noinline
4779void
4426ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4780ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4427{ 4781{
4428 ev_run (w->other, EVRUN_NOWAIT); 4782 ev_run (w->other, EVRUN_NOWAIT);
4429} 4783}
4430 4784
4431static void 4785static void
… …
4479 ev_idle_stop (EV_A_ idle); 4833 ev_idle_stop (EV_A_ idle);
4480} 4834}
4481#endif 4835#endif
4482 4836
4483void 4837void
4484ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4838ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4485{ 4839{
4486 if (expect_false (ev_is_active (w))) 4840 if (ecb_expect_false (ev_is_active (w)))
4487 return; 4841 return;
4488 4842
4489 { 4843 {
4490 EV_P = w->other; 4844 EV_P = w->other;
4491 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4845 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4510 4864
4511 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
4512} 4866}
4513 4867
4514void 4868void
4515ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4869ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4516{ 4870{
4517 clear_pending (EV_A_ (W)w); 4871 clear_pending (EV_A_ (W)w);
4518 if (expect_false (!ev_is_active (w))) 4872 if (ecb_expect_false (!ev_is_active (w)))
4519 return; 4873 return;
4520 4874
4521 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4522 4876
4523 ev_io_stop (EV_A_ &w->io); 4877 ev_io_stop (EV_A_ &w->io);
… …
4530} 4884}
4531#endif 4885#endif
4532 4886
4533#if EV_FORK_ENABLE 4887#if EV_FORK_ENABLE
4534void 4888void
4535ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4889ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4536{ 4890{
4537 if (expect_false (ev_is_active (w))) 4891 if (ecb_expect_false (ev_is_active (w)))
4538 return; 4892 return;
4539 4893
4540 EV_FREQUENT_CHECK; 4894 EV_FREQUENT_CHECK;
4541 4895
4542 ev_start (EV_A_ (W)w, ++forkcnt); 4896 ev_start (EV_A_ (W)w, ++forkcnt);
4543 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4897 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4544 forks [forkcnt - 1] = w; 4898 forks [forkcnt - 1] = w;
4545 4899
4546 EV_FREQUENT_CHECK; 4900 EV_FREQUENT_CHECK;
4547} 4901}
4548 4902
4549void 4903void
4550ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4904ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4551{ 4905{
4552 clear_pending (EV_A_ (W)w); 4906 clear_pending (EV_A_ (W)w);
4553 if (expect_false (!ev_is_active (w))) 4907 if (ecb_expect_false (!ev_is_active (w)))
4554 return; 4908 return;
4555 4909
4556 EV_FREQUENT_CHECK; 4910 EV_FREQUENT_CHECK;
4557 4911
4558 { 4912 {
… …
4568} 4922}
4569#endif 4923#endif
4570 4924
4571#if EV_CLEANUP_ENABLE 4925#if EV_CLEANUP_ENABLE
4572void 4926void
4573ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4927ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4574{ 4928{
4575 if (expect_false (ev_is_active (w))) 4929 if (ecb_expect_false (ev_is_active (w)))
4576 return; 4930 return;
4577 4931
4578 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4579 4933
4580 ev_start (EV_A_ (W)w, ++cleanupcnt); 4934 ev_start (EV_A_ (W)w, ++cleanupcnt);
4581 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4935 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4582 cleanups [cleanupcnt - 1] = w; 4936 cleanups [cleanupcnt - 1] = w;
4583 4937
4584 /* cleanup watchers should never keep a refcount on the loop */ 4938 /* cleanup watchers should never keep a refcount on the loop */
4585 ev_unref (EV_A); 4939 ev_unref (EV_A);
4586 EV_FREQUENT_CHECK; 4940 EV_FREQUENT_CHECK;
4587} 4941}
4588 4942
4589void 4943void
4590ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4944ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4591{ 4945{
4592 clear_pending (EV_A_ (W)w); 4946 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 4947 if (ecb_expect_false (!ev_is_active (w)))
4594 return; 4948 return;
4595 4949
4596 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4597 ev_ref (EV_A); 4951 ev_ref (EV_A);
4598 4952
… …
4609} 4963}
4610#endif 4964#endif
4611 4965
4612#if EV_ASYNC_ENABLE 4966#if EV_ASYNC_ENABLE
4613void 4967void
4614ev_async_start (EV_P_ ev_async *w) EV_THROW 4968ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4615{ 4969{
4616 if (expect_false (ev_is_active (w))) 4970 if (ecb_expect_false (ev_is_active (w)))
4617 return; 4971 return;
4618 4972
4619 w->sent = 0; 4973 w->sent = 0;
4620 4974
4621 evpipe_init (EV_A); 4975 evpipe_init (EV_A);
4622 4976
4623 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4624 4978
4625 ev_start (EV_A_ (W)w, ++asynccnt); 4979 ev_start (EV_A_ (W)w, ++asynccnt);
4626 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4980 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4627 asyncs [asynccnt - 1] = w; 4981 asyncs [asynccnt - 1] = w;
4628 4982
4629 EV_FREQUENT_CHECK; 4983 EV_FREQUENT_CHECK;
4630} 4984}
4631 4985
4632void 4986void
4633ev_async_stop (EV_P_ ev_async *w) EV_THROW 4987ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4634{ 4988{
4635 clear_pending (EV_A_ (W)w); 4989 clear_pending (EV_A_ (W)w);
4636 if (expect_false (!ev_is_active (w))) 4990 if (ecb_expect_false (!ev_is_active (w)))
4637 return; 4991 return;
4638 4992
4639 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4640 4994
4641 { 4995 {
… …
4649 5003
4650 EV_FREQUENT_CHECK; 5004 EV_FREQUENT_CHECK;
4651} 5005}
4652 5006
4653void 5007void
4654ev_async_send (EV_P_ ev_async *w) EV_THROW 5008ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 5009{
4656 w->sent = 1; 5010 w->sent = 1;
4657 evpipe_write (EV_A_ &async_pending); 5011 evpipe_write (EV_A_ &async_pending);
4658} 5012}
4659#endif 5013#endif
… …
4696 5050
4697 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5051 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4698} 5052}
4699 5053
4700void 5054void
4701ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5055ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4702{ 5056{
4703 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5057 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4704
4705 if (expect_false (!once))
4706 {
4707 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4708 return;
4709 }
4710 5058
4711 once->cb = cb; 5059 once->cb = cb;
4712 once->arg = arg; 5060 once->arg = arg;
4713 5061
4714 ev_init (&once->io, once_cb_io); 5062 ev_init (&once->io, once_cb_io);
… …
4727} 5075}
4728 5076
4729/*****************************************************************************/ 5077/*****************************************************************************/
4730 5078
4731#if EV_WALK_ENABLE 5079#if EV_WALK_ENABLE
4732void ecb_cold 5080ecb_cold
5081void
4733ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5082ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4734{ 5083{
4735 int i, j; 5084 int i, j;
4736 ev_watcher_list *wl, *wn; 5085 ev_watcher_list *wl, *wn;
4737 5086
4738 if (types & (EV_IO | EV_EMBED)) 5087 if (types & (EV_IO | EV_EMBED))

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