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

Comparing libev/ev.c (file contents):
Revision 1.466 by root, Tue Mar 25 19:26:42 2014 UTC vs.
Revision 1.490 by root, Thu Jun 20 22:44:59 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
256# else 258# else
257# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
258# endif 260# endif
259#endif 261#endif
260 262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
269# endif
270#endif
271
261#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 274# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 275# else
265# define EV_USE_MONOTONIC 0 276# define EV_USE_MONOTONIC 0
304 315
305#ifndef EV_USE_PORT 316#ifndef EV_USE_PORT
306# define EV_USE_PORT 0 317# define EV_USE_PORT 0
307#endif 318#endif
308 319
320#ifndef EV_USE_LINUXAIO
321# define EV_USE_LINUXAIO 0
322#endif
323
309#ifndef EV_USE_INOTIFY 324#ifndef EV_USE_INOTIFY
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
311# define EV_USE_INOTIFY EV_FEATURE_OS 326# define EV_USE_INOTIFY EV_FEATURE_OS
312# else 327# else
313# define EV_USE_INOTIFY 0 328# define EV_USE_INOTIFY 0
354 369
355#ifndef EV_HEAP_CACHE_AT 370#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 371# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 372#endif
358 373
359#ifdef ANDROID 374#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 375/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 376# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 377# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 378/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL 379# undef EV_USE_CLOCK_SYSCALL
368/* aix's poll.h seems to cause lots of trouble */ 383/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX 384#ifdef _AIX
370/* AIX has a completely broken poll.h header */ 385/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL 386# undef EV_USE_POLL
372# define EV_USE_POLL 0 387# define EV_USE_POLL 0
388#endif
389
390#if EV_USE_LINUXAIO
391# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
373#endif 392#endif
374 393
375/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 394/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
376/* which makes programs even slower. might work on other unices, too. */ 395/* which makes programs even slower. might work on other unices, too. */
377#if EV_USE_CLOCK_SYSCALL 396#if EV_USE_CLOCK_SYSCALL
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 501/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 502/* ECB.H BEGIN */
484/* 503/*
485 * libecb - http://software.schmorp.de/pkg/libecb 504 * libecb - http://software.schmorp.de/pkg/libecb
486 * 505 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 506 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 507 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 508 * All rights reserved.
490 * 509 *
491 * Redistribution and use in source and binary forms, with or without modifica- 510 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 511 * tion, are permitted provided that the following conditions are met:
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 525 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 526 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 527 * 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 528 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE. 529 * OF THE POSSIBILITY OF SUCH DAMAGE.
530 *
531 * Alternatively, the contents of this file may be used under the terms of
532 * the GNU General Public License ("GPL") version 2 or any later version,
533 * in which case the provisions of the GPL are applicable instead of
534 * the above. If you wish to allow the use of your version of this file
535 * only under the terms of the GPL and not to allow others to use your
536 * version of this file under the BSD license, indicate your decision
537 * by deleting the provisions above and replace them with the notice
538 * and other provisions required by the GPL. If you do not delete the
539 * provisions above, a recipient may use your version of this file under
540 * either the BSD or the GPL.
511 */ 541 */
512 542
513#ifndef ECB_H 543#ifndef ECB_H
514#define ECB_H 544#define ECB_H
515 545
516/* 16 bits major, 16 bits minor */ 546/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003 547#define ECB_VERSION 0x00010005
518 548
519#ifdef _WIN32 549#ifdef _WIN32
520 typedef signed char int8_t; 550 typedef signed char int8_t;
521 typedef unsigned char uint8_t; 551 typedef unsigned char uint8_t;
522 typedef signed short int16_t; 552 typedef signed short int16_t;
539 typedef uint32_t uintptr_t; 569 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t; 570 typedef int32_t intptr_t;
541 #endif 571 #endif
542#else 572#else
543 #include <inttypes.h> 573 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU 574 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545 #define ECB_PTRSIZE 8 575 #define ECB_PTRSIZE 8
546 #else 576 #else
547 #define ECB_PTRSIZE 4 577 #define ECB_PTRSIZE 4
548 #endif 578 #endif
549#endif 579#endif
550 580
581#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
582#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
583
551/* work around x32 idiocy by defining proper macros */ 584/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 585#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 586 #if _ILP32
554 #define ECB_AMD64_X32 1 587 #define ECB_AMD64_X32 1
555 #else 588 #else
556 #define ECB_AMD64 1 589 #define ECB_AMD64 1
557 #endif 590 #endif
562 * causing enormous grief in return for some better fake benchmark numbers. 595 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 596 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have 597 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place. 598 * an issue with that they should have done it right in the first place.
566 */ 599 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 600#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0 601 #define ECB_GCC_VERSION(major,minor) 0
570 #else 602#else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 603 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif 604#endif
605
606#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
607
608#if __clang__ && defined __has_builtin
609 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
610#else
611 #define ECB_CLANG_BUILTIN(x) 0
612#endif
613
614#if __clang__ && defined __has_extension
615 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
616#else
617 #define ECB_CLANG_EXTENSION(x) 0
573#endif 618#endif
574 619
575#define ECB_CPP (__cplusplus+0) 620#define ECB_CPP (__cplusplus+0)
576#define ECB_CPP11 (__cplusplus >= 201103L) 621#define ECB_CPP11 (__cplusplus >= 201103L)
622#define ECB_CPP14 (__cplusplus >= 201402L)
623#define ECB_CPP17 (__cplusplus >= 201703L)
577 624
578#if ECB_CPP 625#if ECB_CPP
579 #define ECB_C 0 626 #define ECB_C 0
580 #define ECB_STDC_VERSION 0 627 #define ECB_STDC_VERSION 0
581#else 628#else
583 #define ECB_STDC_VERSION __STDC_VERSION__ 630 #define ECB_STDC_VERSION __STDC_VERSION__
584#endif 631#endif
585 632
586#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 633#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
587#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 634#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
635#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
588 636
589#if ECB_CPP 637#if ECB_CPP
590 #define ECB_EXTERN_C extern "C" 638 #define ECB_EXTERN_C extern "C"
591 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 639 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
592 #define ECB_EXTERN_C_END } 640 #define ECB_EXTERN_C_END }
605 #define ECB_NO_SMP 1 653 #define ECB_NO_SMP 1
606#endif 654#endif
607 655
608#if ECB_NO_SMP 656#if ECB_NO_SMP
609 #define ECB_MEMORY_FENCE do { } while (0) 657 #define ECB_MEMORY_FENCE do { } while (0)
658#endif
659
660/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
661#if __xlC__ && ECB_CPP
662 #include <builtins.h>
663#endif
664
665#if 1400 <= _MSC_VER
666 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
610#endif 667#endif
611 668
612#ifndef ECB_MEMORY_FENCE 669#ifndef ECB_MEMORY_FENCE
613 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 670 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
614 #if __i386 || __i386__ 671 #if __i386 || __i386__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
616 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 673 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
617 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 674 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
618 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 675 #elif ECB_GCC_AMD64
619 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 676 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
620 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 677 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
621 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 678 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
622 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 679 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
681 #elif defined __ARM_ARCH_2__ \
682 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
683 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
684 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
685 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
686 || defined __ARM_ARCH_5TEJ__
687 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
624 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 688 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
625 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 689 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
690 || defined __ARM_ARCH_6T2__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
627 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 692 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
628 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 693 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
629 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
630 #elif __aarch64__ 695 #elif __aarch64__
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 696 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
632 #elif (__sparc || __sparc__) && !__sparcv8 697 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
634 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 699 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
635 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 700 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
636 #elif defined __s390__ || defined __s390x__ 701 #elif defined __s390__ || defined __s390x__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
661 /* see comment below (stdatomic.h) about the C11 memory model. */ 726 /* see comment below (stdatomic.h) about the C11 memory model. */
662 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 727 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
663 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 728 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
664 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 729 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
665 730
666 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 731 #elif ECB_CLANG_EXTENSION(c_atomic)
667 * without risking compile time errors with other compilers. We *could*
668 * define our own ecb_clang_has_feature, but I just can't be bothered to work
669 * around this shit time and again.
670 * #elif defined __clang && __has_feature (cxx_atomic)
671 * // see comment below (stdatomic.h) about the C11 memory model. 732 /* see comment below (stdatomic.h) about the C11 memory model. */
672 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 733 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
673 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 734 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
674 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 735 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
675 */
676 736
677 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 737 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
678 #define ECB_MEMORY_FENCE __sync_synchronize () 738 #define ECB_MEMORY_FENCE __sync_synchronize ()
679 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 739 #elif _MSC_VER >= 1500 /* VC++ 2008 */
680 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 740 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
743 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 803 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
744#endif 804#endif
745 805
746/*****************************************************************************/ 806/*****************************************************************************/
747 807
748#if __cplusplus 808#if ECB_CPP
749 #define ecb_inline static inline 809 #define ecb_inline static inline
750#elif ECB_GCC_VERSION(2,5) 810#elif ECB_GCC_VERSION(2,5)
751 #define ecb_inline static __inline__ 811 #define ecb_inline static __inline__
752#elif ECB_C99 812#elif ECB_C99
753 #define ecb_inline static inline 813 #define ecb_inline static inline
767 827
768#define ECB_CONCAT_(a, b) a ## b 828#define ECB_CONCAT_(a, b) a ## b
769#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 829#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
770#define ECB_STRINGIFY_(a) # a 830#define ECB_STRINGIFY_(a) # a
771#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 831#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
832#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
772 833
773#define ecb_function_ ecb_inline 834#define ecb_function_ ecb_inline
774 835
775#if ECB_GCC_VERSION(3,1) 836#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
776 #define ecb_attribute(attrlist) __attribute__(attrlist) 837 #define ecb_attribute(attrlist) __attribute__ (attrlist)
838#else
839 #define ecb_attribute(attrlist)
840#endif
841
842#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
777 #define ecb_is_constant(expr) __builtin_constant_p (expr) 843 #define ecb_is_constant(expr) __builtin_constant_p (expr)
778 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
779 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
780#else 844#else
781 #define ecb_attribute(attrlist)
782
783 /* possible C11 impl for integral types 845 /* possible C11 impl for integral types
784 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 846 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
785 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 847 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
786 848
787 #define ecb_is_constant(expr) 0 849 #define ecb_is_constant(expr) 0
850#endif
851
852#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
853 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
854#else
788 #define ecb_expect(expr,value) (expr) 855 #define ecb_expect(expr,value) (expr)
856#endif
857
858#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
859 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
860#else
789 #define ecb_prefetch(addr,rw,locality) 861 #define ecb_prefetch(addr,rw,locality)
790#endif 862#endif
791 863
792/* no emulation for ecb_decltype */ 864/* no emulation for ecb_decltype */
793#if ECB_GCC_VERSION(4,5) 865#if ECB_CPP11
866 // older implementations might have problems with decltype(x)::type, work around it
867 template<class T> struct ecb_decltype_t { typedef T type; };
794 #define ecb_decltype(x) __decltype(x) 868 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
795#elif ECB_GCC_VERSION(3,0) 869#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
796 #define ecb_decltype(x) __typeof(x) 870 #define ecb_decltype(x) __typeof__ (x)
797#endif 871#endif
798 872
873#if _MSC_VER >= 1300
874 #define ecb_deprecated __declspec (deprecated)
875#else
876 #define ecb_deprecated ecb_attribute ((__deprecated__))
877#endif
878
879#if _MSC_VER >= 1500
880 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
881#elif ECB_GCC_VERSION(4,5)
882 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
883#else
884 #define ecb_deprecated_message(msg) ecb_deprecated
885#endif
886
887#if _MSC_VER >= 1400
888 #define ecb_noinline __declspec (noinline)
889#else
799#define ecb_noinline ecb_attribute ((__noinline__)) 890 #define ecb_noinline ecb_attribute ((__noinline__))
891#endif
892
800#define ecb_unused ecb_attribute ((__unused__)) 893#define ecb_unused ecb_attribute ((__unused__))
801#define ecb_const ecb_attribute ((__const__)) 894#define ecb_const ecb_attribute ((__const__))
802#define ecb_pure ecb_attribute ((__pure__)) 895#define ecb_pure ecb_attribute ((__pure__))
803 896
804#if ECB_C11 897#if ECB_C11 || __IBMC_NORETURN
898 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
805 #define ecb_noreturn _Noreturn 899 #define ecb_noreturn _Noreturn
900#elif ECB_CPP11
901 #define ecb_noreturn [[noreturn]]
902#elif _MSC_VER >= 1200
903 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
904 #define ecb_noreturn __declspec (noreturn)
806#else 905#else
807 #define ecb_noreturn ecb_attribute ((__noreturn__)) 906 #define ecb_noreturn ecb_attribute ((__noreturn__))
808#endif 907#endif
809 908
810#if ECB_GCC_VERSION(4,3) 909#if ECB_GCC_VERSION(4,3)
825/* for compatibility to the rest of the world */ 924/* for compatibility to the rest of the world */
826#define ecb_likely(expr) ecb_expect_true (expr) 925#define ecb_likely(expr) ecb_expect_true (expr)
827#define ecb_unlikely(expr) ecb_expect_false (expr) 926#define ecb_unlikely(expr) ecb_expect_false (expr)
828 927
829/* count trailing zero bits and count # of one bits */ 928/* count trailing zero bits and count # of one bits */
830#if ECB_GCC_VERSION(3,4) 929#if ECB_GCC_VERSION(3,4) \
930 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
931 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
932 && ECB_CLANG_BUILTIN(__builtin_popcount))
831 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 933 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
832 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 934 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
833 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 935 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
834 #define ecb_ctz32(x) __builtin_ctz (x) 936 #define ecb_ctz32(x) __builtin_ctz (x)
835 #define ecb_ctz64(x) __builtin_ctzll (x) 937 #define ecb_ctz64(x) __builtin_ctzll (x)
836 #define ecb_popcount32(x) __builtin_popcount (x) 938 #define ecb_popcount32(x) __builtin_popcount (x)
837 /* no popcountll */ 939 /* no popcountll */
838#else 940#else
839 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 941 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
840 ecb_function_ int 942 ecb_function_ ecb_const int
841 ecb_ctz32 (uint32_t x) 943 ecb_ctz32 (uint32_t x)
842 { 944 {
945#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
946 unsigned long r;
947 _BitScanForward (&r, x);
948 return (int)r;
949#else
843 int r = 0; 950 int r = 0;
844 951
845 x &= ~x + 1; /* this isolates the lowest bit */ 952 x &= ~x + 1; /* this isolates the lowest bit */
846 953
847#if ECB_branchless_on_i386 954#if ECB_branchless_on_i386
857 if (x & 0xff00ff00) r += 8; 964 if (x & 0xff00ff00) r += 8;
858 if (x & 0xffff0000) r += 16; 965 if (x & 0xffff0000) r += 16;
859#endif 966#endif
860 967
861 return r; 968 return r;
969#endif
862 } 970 }
863 971
864 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 972 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
865 ecb_function_ int 973 ecb_function_ ecb_const int
866 ecb_ctz64 (uint64_t x) 974 ecb_ctz64 (uint64_t x)
867 { 975 {
976#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
977 unsigned long r;
978 _BitScanForward64 (&r, x);
979 return (int)r;
980#else
868 int shift = x & 0xffffffffU ? 0 : 32; 981 int shift = x & 0xffffffff ? 0 : 32;
869 return ecb_ctz32 (x >> shift) + shift; 982 return ecb_ctz32 (x >> shift) + shift;
983#endif
870 } 984 }
871 985
872 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 986 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
873 ecb_function_ int 987 ecb_function_ ecb_const int
874 ecb_popcount32 (uint32_t x) 988 ecb_popcount32 (uint32_t x)
875 { 989 {
876 x -= (x >> 1) & 0x55555555; 990 x -= (x >> 1) & 0x55555555;
877 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 991 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
878 x = ((x >> 4) + x) & 0x0f0f0f0f; 992 x = ((x >> 4) + x) & 0x0f0f0f0f;
879 x *= 0x01010101; 993 x *= 0x01010101;
880 994
881 return x >> 24; 995 return x >> 24;
882 } 996 }
883 997
884 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
885 ecb_function_ int ecb_ld32 (uint32_t x) 999 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
886 { 1000 {
1001#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1002 unsigned long r;
1003 _BitScanReverse (&r, x);
1004 return (int)r;
1005#else
887 int r = 0; 1006 int r = 0;
888 1007
889 if (x >> 16) { x >>= 16; r += 16; } 1008 if (x >> 16) { x >>= 16; r += 16; }
890 if (x >> 8) { x >>= 8; r += 8; } 1009 if (x >> 8) { x >>= 8; r += 8; }
891 if (x >> 4) { x >>= 4; r += 4; } 1010 if (x >> 4) { x >>= 4; r += 4; }
892 if (x >> 2) { x >>= 2; r += 2; } 1011 if (x >> 2) { x >>= 2; r += 2; }
893 if (x >> 1) { r += 1; } 1012 if (x >> 1) { r += 1; }
894 1013
895 return r; 1014 return r;
1015#endif
896 } 1016 }
897 1017
898 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
899 ecb_function_ int ecb_ld64 (uint64_t x) 1019 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
900 { 1020 {
1021#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1022 unsigned long r;
1023 _BitScanReverse64 (&r, x);
1024 return (int)r;
1025#else
901 int r = 0; 1026 int r = 0;
902 1027
903 if (x >> 32) { x >>= 32; r += 32; } 1028 if (x >> 32) { x >>= 32; r += 32; }
904 1029
905 return r + ecb_ld32 (x); 1030 return r + ecb_ld32 (x);
1031#endif
906 } 1032 }
907#endif 1033#endif
908 1034
909ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1035ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
910ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1036ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
911ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1037ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
912ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1038ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
913 1039
914ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1040ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
915ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1041ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
916{ 1042{
917 return ( (x * 0x0802U & 0x22110U) 1043 return ( (x * 0x0802U & 0x22110U)
918 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1044 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
919} 1045}
920 1046
921ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1047ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
922ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1048ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
923{ 1049{
924 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1050 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
925 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1051 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
926 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
927 x = ( x >> 8 ) | ( x << 8); 1053 x = ( x >> 8 ) | ( x << 8);
928 1054
929 return x; 1055 return x;
930} 1056}
931 1057
932ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1058ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
933ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1059ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
934{ 1060{
935 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1061 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
936 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1062 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
937 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1063 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
938 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1064 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
941 return x; 1067 return x;
942} 1068}
943 1069
944/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1070/* popcount64 is only available on 64 bit cpus as gcc builtin */
945/* so for this version we are lazy */ 1071/* so for this version we are lazy */
946ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1072ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
947ecb_function_ int 1073ecb_function_ ecb_const int
948ecb_popcount64 (uint64_t x) 1074ecb_popcount64 (uint64_t x)
949{ 1075{
950 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1076 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
951} 1077}
952 1078
953ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1079ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
954ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1080ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
955ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1081ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
956ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1082ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
957ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1083ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
958ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1084ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
959ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1085ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
960ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1086ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
961 1087
962ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1088ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
963ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1089ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
964ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1090ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
965ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1091ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
966ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1092ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
967ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1093ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
968ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1094ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
969ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1095ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
970 1096
971#if ECB_GCC_VERSION(4,3) 1097#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1098 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1099 #define ecb_bswap16(x) __builtin_bswap16 (x)
1100 #else
972 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1101 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1102 #endif
973 #define ecb_bswap32(x) __builtin_bswap32 (x) 1103 #define ecb_bswap32(x) __builtin_bswap32 (x)
974 #define ecb_bswap64(x) __builtin_bswap64 (x) 1104 #define ecb_bswap64(x) __builtin_bswap64 (x)
1105#elif _MSC_VER
1106 #include <stdlib.h>
1107 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1108 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1109 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
975#else 1110#else
976 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1111 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
977 ecb_function_ uint16_t 1112 ecb_function_ ecb_const uint16_t
978 ecb_bswap16 (uint16_t x) 1113 ecb_bswap16 (uint16_t x)
979 { 1114 {
980 return ecb_rotl16 (x, 8); 1115 return ecb_rotl16 (x, 8);
981 } 1116 }
982 1117
983 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1118 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
984 ecb_function_ uint32_t 1119 ecb_function_ ecb_const uint32_t
985 ecb_bswap32 (uint32_t x) 1120 ecb_bswap32 (uint32_t x)
986 { 1121 {
987 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1122 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
988 } 1123 }
989 1124
990 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1125 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
991 ecb_function_ uint64_t 1126 ecb_function_ ecb_const uint64_t
992 ecb_bswap64 (uint64_t x) 1127 ecb_bswap64 (uint64_t x)
993 { 1128 {
994 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1129 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
995 } 1130 }
996#endif 1131#endif
997 1132
998#if ECB_GCC_VERSION(4,5) 1133#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
999 #define ecb_unreachable() __builtin_unreachable () 1134 #define ecb_unreachable() __builtin_unreachable ()
1000#else 1135#else
1001 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1136 /* this seems to work fine, but gcc always emits a warning for it :/ */
1002 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1137 ecb_inline ecb_noreturn void ecb_unreachable (void);
1003 ecb_inline void ecb_unreachable (void) { } 1138 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1004#endif 1139#endif
1005 1140
1006/* try to tell the compiler that some condition is definitely true */ 1141/* try to tell the compiler that some condition is definitely true */
1007#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1142#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1008 1143
1009ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1010ecb_inline unsigned char 1145ecb_inline ecb_const uint32_t
1011ecb_byteorder_helper (void) 1146ecb_byteorder_helper (void)
1012{ 1147{
1013 /* the union code still generates code under pressure in gcc, */ 1148 /* the union code still generates code under pressure in gcc, */
1014 /* but less than using pointers, and always seems to */ 1149 /* but less than using pointers, and always seems to */
1015 /* successfully return a constant. */ 1150 /* successfully return a constant. */
1016 /* the reason why we have this horrible preprocessor mess */ 1151 /* the reason why we have this horrible preprocessor mess */
1017 /* is to avoid it in all cases, at least on common architectures */ 1152 /* is to avoid it in all cases, at least on common architectures */
1018 /* or when using a recent enough gcc version (>= 4.6) */ 1153 /* or when using a recent enough gcc version (>= 4.6) */
1019#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1020 return 0x44;
1021#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1154#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1155 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1156 #define ECB_LITTLE_ENDIAN 1
1022 return 0x44; 1157 return 0x44332211;
1023#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1158#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1159 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1160 #define ECB_BIG_ENDIAN 1
1024 return 0x11; 1161 return 0x11223344;
1025#else 1162#else
1026 union 1163 union
1027 { 1164 {
1165 uint8_t c[4];
1028 uint32_t i; 1166 uint32_t u;
1029 uint8_t c;
1030 } u = { 0x11223344 }; 1167 } u = { 0x11, 0x22, 0x33, 0x44 };
1031 return u.c; 1168 return u.u;
1032#endif 1169#endif
1033} 1170}
1034 1171
1035ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1172ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1036ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1173ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1037ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1174ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1038ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1175ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1039 1176
1040#if ECB_GCC_VERSION(3,0) || ECB_C99 1177#if ECB_GCC_VERSION(3,0) || ECB_C99
1041 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1178 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1042#else 1179#else
1043 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1180 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1044#endif 1181#endif
1045 1182
1046#if __cplusplus 1183#if ECB_CPP
1047 template<typename T> 1184 template<typename T>
1048 static inline T ecb_div_rd (T val, T div) 1185 static inline T ecb_div_rd (T val, T div)
1049 { 1186 {
1050 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1187 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1051 } 1188 }
1068 } 1205 }
1069#else 1206#else
1070 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1207 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1071#endif 1208#endif
1072 1209
1210ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1211ecb_function_ ecb_const uint32_t
1212ecb_binary16_to_binary32 (uint32_t x)
1213{
1214 unsigned int s = (x & 0x8000) << (31 - 15);
1215 int e = (x >> 10) & 0x001f;
1216 unsigned int m = x & 0x03ff;
1217
1218 if (ecb_expect_false (e == 31))
1219 /* infinity or NaN */
1220 e = 255 - (127 - 15);
1221 else if (ecb_expect_false (!e))
1222 {
1223 if (ecb_expect_true (!m))
1224 /* zero, handled by code below by forcing e to 0 */
1225 e = 0 - (127 - 15);
1226 else
1227 {
1228 /* subnormal, renormalise */
1229 unsigned int s = 10 - ecb_ld32 (m);
1230
1231 m = (m << s) & 0x3ff; /* mask implicit bit */
1232 e -= s - 1;
1233 }
1234 }
1235
1236 /* e and m now are normalised, or zero, (or inf or nan) */
1237 e += 127 - 15;
1238
1239 return s | (e << 23) | (m << (23 - 10));
1240}
1241
1242ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1243ecb_function_ ecb_const uint16_t
1244ecb_binary32_to_binary16 (uint32_t x)
1245{
1246 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1247 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1248 unsigned int m = x & 0x007fffff;
1249
1250 x &= 0x7fffffff;
1251
1252 /* if it's within range of binary16 normals, use fast path */
1253 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1254 {
1255 /* mantissa round-to-even */
1256 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1257
1258 /* handle overflow */
1259 if (ecb_expect_false (m >= 0x00800000))
1260 {
1261 m >>= 1;
1262 e += 1;
1263 }
1264
1265 return s | (e << 10) | (m >> (23 - 10));
1266 }
1267
1268 /* handle large numbers and infinity */
1269 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1270 return s | 0x7c00;
1271
1272 /* handle zero, subnormals and small numbers */
1273 if (ecb_expect_true (x < 0x38800000))
1274 {
1275 /* zero */
1276 if (ecb_expect_true (!x))
1277 return s;
1278
1279 /* handle subnormals */
1280
1281 /* too small, will be zero */
1282 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1283 return s;
1284
1285 m |= 0x00800000; /* make implicit bit explicit */
1286
1287 /* very tricky - we need to round to the nearest e (+10) bit value */
1288 {
1289 unsigned int bits = 14 - e;
1290 unsigned int half = (1 << (bits - 1)) - 1;
1291 unsigned int even = (m >> bits) & 1;
1292
1293 /* if this overflows, we will end up with a normalised number */
1294 m = (m + half + even) >> bits;
1295 }
1296
1297 return s | m;
1298 }
1299
1300 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1301 m >>= 13;
1302
1303 return s | 0x7c00 | m | !m;
1304}
1305
1073/*******************************************************************************/ 1306/*******************************************************************************/
1074/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1307/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1075 1308
1076/* basically, everything uses "ieee pure-endian" floating point numbers */ 1309/* basically, everything uses "ieee pure-endian" floating point numbers */
1077/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1310/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1078#if 0 \ 1311#if 0 \
1079 || __i386 || __i386__ \ 1312 || __i386 || __i386__ \
1080 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1313 || ECB_GCC_AMD64 \
1081 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1314 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1082 || defined __s390__ || defined __s390x__ \ 1315 || defined __s390__ || defined __s390x__ \
1083 || defined __mips__ \ 1316 || defined __mips__ \
1084 || defined __alpha__ \ 1317 || defined __alpha__ \
1085 || defined __hppa__ \ 1318 || defined __hppa__ \
1086 || defined __ia64__ \ 1319 || defined __ia64__ \
1087 || defined __m68k__ \ 1320 || defined __m68k__ \
1088 || defined __m88k__ \ 1321 || defined __m88k__ \
1089 || defined __sh__ \ 1322 || defined __sh__ \
1090 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1323 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1091 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1324 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1092 || defined __aarch64__ 1325 || defined __aarch64__
1093 #define ECB_STDFP 1 1326 #define ECB_STDFP 1
1094 #include <string.h> /* for memcpy */ 1327 #include <string.h> /* for memcpy */
1095#else 1328#else
1111 #define ECB_NAN NAN 1344 #define ECB_NAN NAN
1112 #else 1345 #else
1113 #define ECB_NAN ECB_INFINITY 1346 #define ECB_NAN ECB_INFINITY
1114 #endif 1347 #endif
1115 1348
1116 /* converts an ieee half/binary16 to a float */ 1349 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1117 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1350 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1118 ecb_function_ float 1351 #define ecb_frexpf(x,e) frexpf ((x), (e))
1119 ecb_binary16_to_float (uint16_t x) 1352 #else
1120 { 1353 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1121 int e = (x >> 10) & 0x1f; 1354 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1122 int m = x & 0x3ff; 1355 #endif
1123 float r;
1124
1125 if (!e ) r = ldexpf (m , -24);
1126 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1127 else if (m ) r = ECB_NAN;
1128 else r = ECB_INFINITY;
1129
1130 return x & 0x8000 ? -r : r;
1131 }
1132 1356
1133 /* convert a float to ieee single/binary32 */ 1357 /* convert a float to ieee single/binary32 */
1134 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1358 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1135 ecb_function_ uint32_t 1359 ecb_function_ ecb_const uint32_t
1136 ecb_float_to_binary32 (float x) 1360 ecb_float_to_binary32 (float x)
1137 { 1361 {
1138 uint32_t r; 1362 uint32_t r;
1139 1363
1140 #if ECB_STDFP 1364 #if ECB_STDFP
1147 if (x == 0e0f ) return 0x00000000U; 1371 if (x == 0e0f ) return 0x00000000U;
1148 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1372 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1149 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1373 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1150 if (x != x ) return 0x7fbfffffU; 1374 if (x != x ) return 0x7fbfffffU;
1151 1375
1152 m = frexpf (x, &e) * 0x1000000U; 1376 m = ecb_frexpf (x, &e) * 0x1000000U;
1153 1377
1154 r = m & 0x80000000U; 1378 r = m & 0x80000000U;
1155 1379
1156 if (r) 1380 if (r)
1157 m = -m; 1381 m = -m;
1169 1393
1170 return r; 1394 return r;
1171 } 1395 }
1172 1396
1173 /* converts an ieee single/binary32 to a float */ 1397 /* converts an ieee single/binary32 to a float */
1174 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1398 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1175 ecb_function_ float 1399 ecb_function_ ecb_const float
1176 ecb_binary32_to_float (uint32_t x) 1400 ecb_binary32_to_float (uint32_t x)
1177 { 1401 {
1178 float r; 1402 float r;
1179 1403
1180 #if ECB_STDFP 1404 #if ECB_STDFP
1190 x |= 0x800000U; 1414 x |= 0x800000U;
1191 else 1415 else
1192 e = 1; 1416 e = 1;
1193 1417
1194 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1418 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1195 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1419 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1196 1420
1197 r = neg ? -r : r; 1421 r = neg ? -r : r;
1198 #endif 1422 #endif
1199 1423
1200 return r; 1424 return r;
1201 } 1425 }
1202 1426
1203 /* convert a double to ieee double/binary64 */ 1427 /* convert a double to ieee double/binary64 */
1204 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1428 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1205 ecb_function_ uint64_t 1429 ecb_function_ ecb_const uint64_t
1206 ecb_double_to_binary64 (double x) 1430 ecb_double_to_binary64 (double x)
1207 { 1431 {
1208 uint64_t r; 1432 uint64_t r;
1209 1433
1210 #if ECB_STDFP 1434 #if ECB_STDFP
1239 1463
1240 return r; 1464 return r;
1241 } 1465 }
1242 1466
1243 /* converts an ieee double/binary64 to a double */ 1467 /* converts an ieee double/binary64 to a double */
1244 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1468 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1245 ecb_function_ double 1469 ecb_function_ ecb_const double
1246 ecb_binary64_to_double (uint64_t x) 1470 ecb_binary64_to_double (uint64_t x)
1247 { 1471 {
1248 double r; 1472 double r;
1249 1473
1250 #if ECB_STDFP 1474 #if ECB_STDFP
1266 1490
1267 r = neg ? -r : r; 1491 r = neg ? -r : r;
1268 #endif 1492 #endif
1269 1493
1270 return r; 1494 return r;
1495 }
1496
1497 /* convert a float to ieee half/binary16 */
1498 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1499 ecb_function_ ecb_const uint16_t
1500 ecb_float_to_binary16 (float x)
1501 {
1502 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1503 }
1504
1505 /* convert an ieee half/binary16 to float */
1506 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1507 ecb_function_ ecb_const float
1508 ecb_binary16_to_float (uint16_t x)
1509 {
1510 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1271 } 1511 }
1272 1512
1273#endif 1513#endif
1274 1514
1275#endif 1515#endif
1300#define inline_size ecb_inline 1540#define inline_size ecb_inline
1301 1541
1302#if EV_FEATURE_CODE 1542#if EV_FEATURE_CODE
1303# define inline_speed ecb_inline 1543# define inline_speed ecb_inline
1304#else 1544#else
1305# define inline_speed static noinline 1545# define inline_speed noinline static
1306#endif 1546#endif
1307 1547
1308#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1548#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1309 1549
1310#if EV_MINPRI == EV_MAXPRI 1550#if EV_MINPRI == EV_MAXPRI
1311# define ABSPRI(w) (((W)w), 0) 1551# define ABSPRI(w) (((W)w), 0)
1312#else 1552#else
1313# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1553# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1314#endif 1554#endif
1315 1555
1316#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1556#define EMPTY /* required for microsofts broken pseudo-c compiler */
1317#define EMPTY2(a,b) /* used to suppress some warnings */
1318 1557
1319typedef ev_watcher *W; 1558typedef ev_watcher *W;
1320typedef ev_watcher_list *WL; 1559typedef ev_watcher_list *WL;
1321typedef ev_watcher_time *WT; 1560typedef ev_watcher_time *WT;
1322 1561
1357#else 1596#else
1358 1597
1359#include <float.h> 1598#include <float.h>
1360 1599
1361/* a floor() replacement function, should be independent of ev_tstamp type */ 1600/* a floor() replacement function, should be independent of ev_tstamp type */
1601noinline
1362static ev_tstamp noinline 1602static ev_tstamp
1363ev_floor (ev_tstamp v) 1603ev_floor (ev_tstamp v)
1364{ 1604{
1365 /* the choice of shift factor is not terribly important */ 1605 /* the choice of shift factor is not terribly important */
1366#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1606#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1367 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1607 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1399 1639
1400#ifdef __linux 1640#ifdef __linux
1401# include <sys/utsname.h> 1641# include <sys/utsname.h>
1402#endif 1642#endif
1403 1643
1404static unsigned int noinline ecb_cold 1644noinline ecb_cold
1645static unsigned int
1405ev_linux_version (void) 1646ev_linux_version (void)
1406{ 1647{
1407#ifdef __linux 1648#ifdef __linux
1408 unsigned int v = 0; 1649 unsigned int v = 0;
1409 struct utsname buf; 1650 struct utsname buf;
1438} 1679}
1439 1680
1440/*****************************************************************************/ 1681/*****************************************************************************/
1441 1682
1442#if EV_AVOID_STDIO 1683#if EV_AVOID_STDIO
1443static void noinline ecb_cold 1684noinline ecb_cold
1685static void
1444ev_printerr (const char *msg) 1686ev_printerr (const char *msg)
1445{ 1687{
1446 write (STDERR_FILENO, msg, strlen (msg)); 1688 write (STDERR_FILENO, msg, strlen (msg));
1447} 1689}
1448#endif 1690#endif
1449 1691
1450static void (*syserr_cb)(const char *msg) EV_THROW; 1692static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1451 1693
1452void ecb_cold 1694ecb_cold
1695void
1453ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1696ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1454{ 1697{
1455 syserr_cb = cb; 1698 syserr_cb = cb;
1456} 1699}
1457 1700
1458static void noinline ecb_cold 1701noinline ecb_cold
1702static void
1459ev_syserr (const char *msg) 1703ev_syserr (const char *msg)
1460{ 1704{
1461 if (!msg) 1705 if (!msg)
1462 msg = "(libev) system error"; 1706 msg = "(libev) system error";
1463 1707
1476 abort (); 1720 abort ();
1477 } 1721 }
1478} 1722}
1479 1723
1480static void * 1724static void *
1481ev_realloc_emul (void *ptr, long size) EV_THROW 1725ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1482{ 1726{
1483 /* some systems, notably openbsd and darwin, fail to properly 1727 /* some systems, notably openbsd and darwin, fail to properly
1484 * implement realloc (x, 0) (as required by both ansi c-89 and 1728 * implement realloc (x, 0) (as required by both ansi c-89 and
1485 * the single unix specification, so work around them here. 1729 * the single unix specification, so work around them here.
1486 * recently, also (at least) fedora and debian started breaking it, 1730 * recently, also (at least) fedora and debian started breaking it,
1492 1736
1493 free (ptr); 1737 free (ptr);
1494 return 0; 1738 return 0;
1495} 1739}
1496 1740
1497static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1741static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1498 1742
1499void ecb_cold 1743ecb_cold
1744void
1500ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1745ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1501{ 1746{
1502 alloc = cb; 1747 alloc = cb;
1503} 1748}
1504 1749
1505inline_speed void * 1750inline_speed void *
1532typedef struct 1777typedef struct
1533{ 1778{
1534 WL head; 1779 WL head;
1535 unsigned char events; /* the events watched for */ 1780 unsigned char events; /* the events watched for */
1536 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1781 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1537 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1782 unsigned char emask; /* some backends store the actual kernel mask in here */
1538 unsigned char unused; 1783 unsigned char unused;
1539#if EV_USE_EPOLL 1784#if EV_USE_EPOLL
1540 unsigned int egen; /* generation counter to counter epoll bugs */ 1785 unsigned int egen; /* generation counter to counter epoll bugs */
1541#endif 1786#endif
1542#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1787#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1622 1867
1623/*****************************************************************************/ 1868/*****************************************************************************/
1624 1869
1625#ifndef EV_HAVE_EV_TIME 1870#ifndef EV_HAVE_EV_TIME
1626ev_tstamp 1871ev_tstamp
1627ev_time (void) EV_THROW 1872ev_time (void) EV_NOEXCEPT
1628{ 1873{
1629#if EV_USE_REALTIME 1874#if EV_USE_REALTIME
1630 if (expect_true (have_realtime)) 1875 if (expect_true (have_realtime))
1631 { 1876 {
1632 struct timespec ts; 1877 struct timespec ts;
1656 return ev_time (); 1901 return ev_time ();
1657} 1902}
1658 1903
1659#if EV_MULTIPLICITY 1904#if EV_MULTIPLICITY
1660ev_tstamp 1905ev_tstamp
1661ev_now (EV_P) EV_THROW 1906ev_now (EV_P) EV_NOEXCEPT
1662{ 1907{
1663 return ev_rt_now; 1908 return ev_rt_now;
1664} 1909}
1665#endif 1910#endif
1666 1911
1667void 1912void
1668ev_sleep (ev_tstamp delay) EV_THROW 1913ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1669{ 1914{
1670 if (delay > 0.) 1915 if (delay > 0.)
1671 { 1916 {
1672#if EV_USE_NANOSLEEP 1917#if EV_USE_NANOSLEEP
1673 struct timespec ts; 1918 struct timespec ts;
1674 1919
1675 EV_TS_SET (ts, delay); 1920 EV_TS_SET (ts, delay);
1676 nanosleep (&ts, 0); 1921 nanosleep (&ts, 0);
1677#elif defined _WIN32 1922#elif defined _WIN32
1923 /* maybe this should round up, as ms is very low resolution */
1924 /* compared to select (µs) or nanosleep (ns) */
1678 Sleep ((unsigned long)(delay * 1e3)); 1925 Sleep ((unsigned long)(delay * 1e3));
1679#else 1926#else
1680 struct timeval tv; 1927 struct timeval tv;
1681 1928
1682 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1929 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1713 } 1960 }
1714 1961
1715 return ncur; 1962 return ncur;
1716} 1963}
1717 1964
1718static void * noinline ecb_cold 1965noinline ecb_cold
1966static void *
1719array_realloc (int elem, void *base, int *cur, int cnt) 1967array_realloc (int elem, void *base, int *cur, int cnt)
1720{ 1968{
1721 *cur = array_nextsize (elem, *cur, cnt); 1969 *cur = array_nextsize (elem, *cur, cnt);
1722 return ev_realloc (base, elem * *cur); 1970 return ev_realloc (base, elem * *cur);
1723} 1971}
1724 1972
1973#define array_needsize_noinit(base,count)
1974
1725#define array_init_zero(base,count) \ 1975#define array_needsize_zerofill(base,count) \
1726 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1976 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1727 1977
1728#define array_needsize(type,base,cur,cnt,init) \ 1978#define array_needsize(type,base,cur,cnt,init) \
1729 if (expect_false ((cnt) > (cur))) \ 1979 if (expect_false ((cnt) > (cur))) \
1730 { \ 1980 { \
1731 int ecb_unused ocur_ = (cur); \ 1981 ecb_unused int ocur_ = (cur); \
1732 (base) = (type *)array_realloc \ 1982 (base) = (type *)array_realloc \
1733 (sizeof (type), (base), &(cur), (cnt)); \ 1983 (sizeof (type), (base), &(cur), (cnt)); \
1734 init ((base) + (ocur_), (cur) - ocur_); \ 1984 init ((base) + (ocur_), (cur) - ocur_); \
1735 } 1985 }
1736 1986
1748 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1998 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1749 1999
1750/*****************************************************************************/ 2000/*****************************************************************************/
1751 2001
1752/* dummy callback for pending events */ 2002/* dummy callback for pending events */
1753static void noinline 2003noinline
2004static void
1754pendingcb (EV_P_ ev_prepare *w, int revents) 2005pendingcb (EV_P_ ev_prepare *w, int revents)
1755{ 2006{
1756} 2007}
1757 2008
1758void noinline 2009noinline
2010void
1759ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2011ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1760{ 2012{
1761 W w_ = (W)w; 2013 W w_ = (W)w;
1762 int pri = ABSPRI (w_); 2014 int pri = ABSPRI (w_);
1763 2015
1764 if (expect_false (w_->pending)) 2016 if (expect_false (w_->pending))
1765 pendings [pri][w_->pending - 1].events |= revents; 2017 pendings [pri][w_->pending - 1].events |= revents;
1766 else 2018 else
1767 { 2019 {
1768 w_->pending = ++pendingcnt [pri]; 2020 w_->pending = ++pendingcnt [pri];
1769 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2021 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1770 pendings [pri][w_->pending - 1].w = w_; 2022 pendings [pri][w_->pending - 1].w = w_;
1771 pendings [pri][w_->pending - 1].events = revents; 2023 pendings [pri][w_->pending - 1].events = revents;
1772 } 2024 }
1773 2025
1774 pendingpri = NUMPRI - 1; 2026 pendingpri = NUMPRI - 1;
1775} 2027}
1776 2028
1777inline_speed void 2029inline_speed void
1778feed_reverse (EV_P_ W w) 2030feed_reverse (EV_P_ W w)
1779{ 2031{
1780 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2032 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1781 rfeeds [rfeedcnt++] = w; 2033 rfeeds [rfeedcnt++] = w;
1782} 2034}
1783 2035
1784inline_size void 2036inline_size void
1785feed_reverse_done (EV_P_ int revents) 2037feed_reverse_done (EV_P_ int revents)
1825 if (expect_true (!anfd->reify)) 2077 if (expect_true (!anfd->reify))
1826 fd_event_nocheck (EV_A_ fd, revents); 2078 fd_event_nocheck (EV_A_ fd, revents);
1827} 2079}
1828 2080
1829void 2081void
1830ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2082ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1831{ 2083{
1832 if (fd >= 0 && fd < anfdmax) 2084 if (fd >= 0 && fd < anfdmax)
1833 fd_event_nocheck (EV_A_ fd, revents); 2085 fd_event_nocheck (EV_A_ fd, revents);
1834} 2086}
1835 2087
1893 2145
1894 fdchangecnt = 0; 2146 fdchangecnt = 0;
1895} 2147}
1896 2148
1897/* something about the given fd changed */ 2149/* something about the given fd changed */
1898inline_size void 2150inline_size
2151void
1899fd_change (EV_P_ int fd, int flags) 2152fd_change (EV_P_ int fd, int flags)
1900{ 2153{
1901 unsigned char reify = anfds [fd].reify; 2154 unsigned char reify = anfds [fd].reify;
1902 anfds [fd].reify |= flags; 2155 anfds [fd].reify |= flags;
1903 2156
1904 if (expect_true (!reify)) 2157 if (expect_true (!reify))
1905 { 2158 {
1906 ++fdchangecnt; 2159 ++fdchangecnt;
1907 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2160 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1908 fdchanges [fdchangecnt - 1] = fd; 2161 fdchanges [fdchangecnt - 1] = fd;
1909 } 2162 }
1910} 2163}
1911 2164
1912/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2165/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1913inline_speed void ecb_cold 2166inline_speed ecb_cold void
1914fd_kill (EV_P_ int fd) 2167fd_kill (EV_P_ int fd)
1915{ 2168{
1916 ev_io *w; 2169 ev_io *w;
1917 2170
1918 while ((w = (ev_io *)anfds [fd].head)) 2171 while ((w = (ev_io *)anfds [fd].head))
1921 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2174 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1922 } 2175 }
1923} 2176}
1924 2177
1925/* check whether the given fd is actually valid, for error recovery */ 2178/* check whether the given fd is actually valid, for error recovery */
1926inline_size int ecb_cold 2179inline_size ecb_cold int
1927fd_valid (int fd) 2180fd_valid (int fd)
1928{ 2181{
1929#ifdef _WIN32 2182#ifdef _WIN32
1930 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2183 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1931#else 2184#else
1932 return fcntl (fd, F_GETFD) != -1; 2185 return fcntl (fd, F_GETFD) != -1;
1933#endif 2186#endif
1934} 2187}
1935 2188
1936/* called on EBADF to verify fds */ 2189/* called on EBADF to verify fds */
1937static void noinline ecb_cold 2190noinline ecb_cold
2191static void
1938fd_ebadf (EV_P) 2192fd_ebadf (EV_P)
1939{ 2193{
1940 int fd; 2194 int fd;
1941 2195
1942 for (fd = 0; fd < anfdmax; ++fd) 2196 for (fd = 0; fd < anfdmax; ++fd)
1944 if (!fd_valid (fd) && errno == EBADF) 2198 if (!fd_valid (fd) && errno == EBADF)
1945 fd_kill (EV_A_ fd); 2199 fd_kill (EV_A_ fd);
1946} 2200}
1947 2201
1948/* called on ENOMEM in select/poll to kill some fds and retry */ 2202/* called on ENOMEM in select/poll to kill some fds and retry */
1949static void noinline ecb_cold 2203noinline ecb_cold
2204static void
1950fd_enomem (EV_P) 2205fd_enomem (EV_P)
1951{ 2206{
1952 int fd; 2207 int fd;
1953 2208
1954 for (fd = anfdmax; fd--; ) 2209 for (fd = anfdmax; fd--; )
1958 break; 2213 break;
1959 } 2214 }
1960} 2215}
1961 2216
1962/* usually called after fork if backend needs to re-arm all fds from scratch */ 2217/* usually called after fork if backend needs to re-arm all fds from scratch */
1963static void noinline 2218noinline
2219static void
1964fd_rearm_all (EV_P) 2220fd_rearm_all (EV_P)
1965{ 2221{
1966 int fd; 2222 int fd;
1967 2223
1968 for (fd = 0; fd < anfdmax; ++fd) 2224 for (fd = 0; fd < anfdmax; ++fd)
2149 2405
2150/*****************************************************************************/ 2406/*****************************************************************************/
2151 2407
2152#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2408#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2153 2409
2154static void noinline ecb_cold 2410noinline ecb_cold
2411static void
2155evpipe_init (EV_P) 2412evpipe_init (EV_P)
2156{ 2413{
2157 if (!ev_is_active (&pipe_w)) 2414 if (!ev_is_active (&pipe_w))
2158 { 2415 {
2159 int fds [2]; 2416 int fds [2];
2230#endif 2487#endif
2231 { 2488 {
2232#ifdef _WIN32 2489#ifdef _WIN32
2233 WSABUF buf; 2490 WSABUF buf;
2234 DWORD sent; 2491 DWORD sent;
2235 buf.buf = &buf; 2492 buf.buf = (char *)&buf;
2236 buf.len = 1; 2493 buf.len = 1;
2237 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2494 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2238#else 2495#else
2239 write (evpipe [1], &(evpipe [1]), 1); 2496 write (evpipe [1], &(evpipe [1]), 1);
2240#endif 2497#endif
2312} 2569}
2313 2570
2314/*****************************************************************************/ 2571/*****************************************************************************/
2315 2572
2316void 2573void
2317ev_feed_signal (int signum) EV_THROW 2574ev_feed_signal (int signum) EV_NOEXCEPT
2318{ 2575{
2319#if EV_MULTIPLICITY 2576#if EV_MULTIPLICITY
2320 EV_P; 2577 EV_P;
2321 ECB_MEMORY_FENCE_ACQUIRE; 2578 ECB_MEMORY_FENCE_ACQUIRE;
2322 EV_A = signals [signum - 1].loop; 2579 EV_A = signals [signum - 1].loop;
2337#endif 2594#endif
2338 2595
2339 ev_feed_signal (signum); 2596 ev_feed_signal (signum);
2340} 2597}
2341 2598
2342void noinline 2599noinline
2600void
2343ev_feed_signal_event (EV_P_ int signum) EV_THROW 2601ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2344{ 2602{
2345 WL w; 2603 WL w;
2346 2604
2347 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2605 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2348 return; 2606 return;
2454# include "ev_port.c" 2712# include "ev_port.c"
2455#endif 2713#endif
2456#if EV_USE_KQUEUE 2714#if EV_USE_KQUEUE
2457# include "ev_kqueue.c" 2715# include "ev_kqueue.c"
2458#endif 2716#endif
2717#if EV_USE_LINUXAIO
2718# include "ev_linuxaio.c"
2719#endif
2459#if EV_USE_EPOLL 2720#if EV_USE_EPOLL
2460# include "ev_epoll.c" 2721# include "ev_epoll.c"
2461#endif 2722#endif
2462#if EV_USE_POLL 2723#if EV_USE_POLL
2463# include "ev_poll.c" 2724# include "ev_poll.c"
2464#endif 2725#endif
2465#if EV_USE_SELECT 2726#if EV_USE_SELECT
2466# include "ev_select.c" 2727# include "ev_select.c"
2467#endif 2728#endif
2468 2729
2469int ecb_cold 2730ecb_cold int
2470ev_version_major (void) EV_THROW 2731ev_version_major (void) EV_NOEXCEPT
2471{ 2732{
2472 return EV_VERSION_MAJOR; 2733 return EV_VERSION_MAJOR;
2473} 2734}
2474 2735
2475int ecb_cold 2736ecb_cold int
2476ev_version_minor (void) EV_THROW 2737ev_version_minor (void) EV_NOEXCEPT
2477{ 2738{
2478 return EV_VERSION_MINOR; 2739 return EV_VERSION_MINOR;
2479} 2740}
2480 2741
2481/* return true if we are running with elevated privileges and should ignore env variables */ 2742/* return true if we are running with elevated privileges and should ignore env variables */
2482int inline_size ecb_cold 2743inline_size ecb_cold int
2483enable_secure (void) 2744enable_secure (void)
2484{ 2745{
2485#ifdef _WIN32 2746#ifdef _WIN32
2486 return 0; 2747 return 0;
2487#else 2748#else
2488 return getuid () != geteuid () 2749 return getuid () != geteuid ()
2489 || getgid () != getegid (); 2750 || getgid () != getegid ();
2490#endif 2751#endif
2491} 2752}
2492 2753
2493unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2494ev_supported_backends (void) EV_THROW 2756ev_supported_backends (void) EV_NOEXCEPT
2495{ 2757{
2496 unsigned int flags = 0; 2758 unsigned int flags = 0;
2497 2759
2498 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2760 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2499 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2761 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2500 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2762 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2763 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2501 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2764 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2502 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2765 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2503 2766
2504 return flags; 2767 return flags;
2505} 2768}
2506 2769
2507unsigned int ecb_cold 2770ecb_cold
2771unsigned int
2508ev_recommended_backends (void) EV_THROW 2772ev_recommended_backends (void) EV_NOEXCEPT
2509{ 2773{
2510 unsigned int flags = ev_supported_backends (); 2774 unsigned int flags = ev_supported_backends ();
2511 2775
2512#ifndef __NetBSD__ 2776#ifndef __NetBSD__
2513 /* kqueue is borked on everything but netbsd apparently */ 2777 /* kqueue is borked on everything but netbsd apparently */
2524#endif 2788#endif
2525 2789
2526 return flags; 2790 return flags;
2527} 2791}
2528 2792
2529unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2530ev_embeddable_backends (void) EV_THROW 2795ev_embeddable_backends (void) EV_NOEXCEPT
2531{ 2796{
2532 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2797 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2533 2798
2534 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2799 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2535 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2800 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2537 2802
2538 return flags; 2803 return flags;
2539} 2804}
2540 2805
2541unsigned int 2806unsigned int
2542ev_backend (EV_P) EV_THROW 2807ev_backend (EV_P) EV_NOEXCEPT
2543{ 2808{
2544 return backend; 2809 return backend;
2545} 2810}
2546 2811
2547#if EV_FEATURE_API 2812#if EV_FEATURE_API
2548unsigned int 2813unsigned int
2549ev_iteration (EV_P) EV_THROW 2814ev_iteration (EV_P) EV_NOEXCEPT
2550{ 2815{
2551 return loop_count; 2816 return loop_count;
2552} 2817}
2553 2818
2554unsigned int 2819unsigned int
2555ev_depth (EV_P) EV_THROW 2820ev_depth (EV_P) EV_NOEXCEPT
2556{ 2821{
2557 return loop_depth; 2822 return loop_depth;
2558} 2823}
2559 2824
2560void 2825void
2561ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2826ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2562{ 2827{
2563 io_blocktime = interval; 2828 io_blocktime = interval;
2564} 2829}
2565 2830
2566void 2831void
2567ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2832ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2568{ 2833{
2569 timeout_blocktime = interval; 2834 timeout_blocktime = interval;
2570} 2835}
2571 2836
2572void 2837void
2573ev_set_userdata (EV_P_ void *data) EV_THROW 2838ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2574{ 2839{
2575 userdata = data; 2840 userdata = data;
2576} 2841}
2577 2842
2578void * 2843void *
2579ev_userdata (EV_P) EV_THROW 2844ev_userdata (EV_P) EV_NOEXCEPT
2580{ 2845{
2581 return userdata; 2846 return userdata;
2582} 2847}
2583 2848
2584void 2849void
2585ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2850ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2586{ 2851{
2587 invoke_cb = invoke_pending_cb; 2852 invoke_cb = invoke_pending_cb;
2588} 2853}
2589 2854
2590void 2855void
2591ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2856ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2592{ 2857{
2593 release_cb = release; 2858 release_cb = release;
2594 acquire_cb = acquire; 2859 acquire_cb = acquire;
2595} 2860}
2596#endif 2861#endif
2597 2862
2598/* initialise a loop structure, must be zero-initialised */ 2863/* initialise a loop structure, must be zero-initialised */
2599static void noinline ecb_cold 2864noinline ecb_cold
2865static void
2600loop_init (EV_P_ unsigned int flags) EV_THROW 2866loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2601{ 2867{
2602 if (!backend) 2868 if (!backend)
2603 { 2869 {
2604 origflags = flags; 2870 origflags = flags;
2605 2871
2663 2929
2664 if (!(flags & EVBACKEND_MASK)) 2930 if (!(flags & EVBACKEND_MASK))
2665 flags |= ev_recommended_backends (); 2931 flags |= ev_recommended_backends ();
2666 2932
2667#if EV_USE_IOCP 2933#if EV_USE_IOCP
2668 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2934 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2669#endif 2935#endif
2670#if EV_USE_PORT 2936#if EV_USE_PORT
2671 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2937 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2672#endif 2938#endif
2673#if EV_USE_KQUEUE 2939#if EV_USE_KQUEUE
2674 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2940 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2941#endif
2942#if EV_USE_LINUXAIO
2943 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2675#endif 2944#endif
2676#if EV_USE_EPOLL 2945#if EV_USE_EPOLL
2677 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2946 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2678#endif 2947#endif
2679#if EV_USE_POLL 2948#if EV_USE_POLL
2680 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2949 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2681#endif 2950#endif
2682#if EV_USE_SELECT 2951#if EV_USE_SELECT
2683 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2952 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2684#endif 2953#endif
2685 2954
2686 ev_prepare_init (&pending_w, pendingcb); 2955 ev_prepare_init (&pending_w, pendingcb);
2687 2956
2688#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2957#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2691#endif 2960#endif
2692 } 2961 }
2693} 2962}
2694 2963
2695/* free up a loop structure */ 2964/* free up a loop structure */
2696void ecb_cold 2965ecb_cold
2966void
2697ev_loop_destroy (EV_P) 2967ev_loop_destroy (EV_P)
2698{ 2968{
2699 int i; 2969 int i;
2700 2970
2701#if EV_MULTIPLICITY 2971#if EV_MULTIPLICITY
2742 3012
2743 if (backend_fd >= 0) 3013 if (backend_fd >= 0)
2744 close (backend_fd); 3014 close (backend_fd);
2745 3015
2746#if EV_USE_IOCP 3016#if EV_USE_IOCP
2747 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3017 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2748#endif 3018#endif
2749#if EV_USE_PORT 3019#if EV_USE_PORT
2750 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2751#endif 3021#endif
2752#if EV_USE_KQUEUE 3022#if EV_USE_KQUEUE
2753 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3023 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3024#endif
3025#if EV_USE_LINUXAIO
3026 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2754#endif 3027#endif
2755#if EV_USE_EPOLL 3028#if EV_USE_EPOLL
2756 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3029 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2757#endif 3030#endif
2758#if EV_USE_POLL 3031#if EV_USE_POLL
2759 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3032 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2760#endif 3033#endif
2761#if EV_USE_SELECT 3034#if EV_USE_SELECT
2762 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3035 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2763#endif 3036#endif
2764 3037
2765 for (i = NUMPRI; i--; ) 3038 for (i = NUMPRI; i--; )
2766 { 3039 {
2767 array_free (pending, [i]); 3040 array_free (pending, [i]);
2809 3082
2810inline_size void 3083inline_size void
2811loop_fork (EV_P) 3084loop_fork (EV_P)
2812{ 3085{
2813#if EV_USE_PORT 3086#if EV_USE_PORT
2814 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3087 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2815#endif 3088#endif
2816#if EV_USE_KQUEUE 3089#if EV_USE_KQUEUE
2817 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3090 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3091#endif
3092#if EV_USE_LINUXAIO
3093 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2818#endif 3094#endif
2819#if EV_USE_EPOLL 3095#if EV_USE_EPOLL
2820 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3096 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2821#endif 3097#endif
2822#if EV_USE_INOTIFY 3098#if EV_USE_INOTIFY
2823 infy_fork (EV_A); 3099 infy_fork (EV_A);
2824#endif 3100#endif
2825 3101
2826#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3102#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2827 if (ev_is_active (&pipe_w)) 3103 if (ev_is_active (&pipe_w) && postfork != 2)
2828 { 3104 {
2829 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3105 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2830 3106
2831 ev_ref (EV_A); 3107 ev_ref (EV_A);
2832 ev_io_stop (EV_A_ &pipe_w); 3108 ev_io_stop (EV_A_ &pipe_w);
2843 postfork = 0; 3119 postfork = 0;
2844} 3120}
2845 3121
2846#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
2847 3123
3124ecb_cold
2848struct ev_loop * ecb_cold 3125struct ev_loop *
2849ev_loop_new (unsigned int flags) EV_THROW 3126ev_loop_new (unsigned int flags) EV_NOEXCEPT
2850{ 3127{
2851 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3128 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2852 3129
2853 memset (EV_A, 0, sizeof (struct ev_loop)); 3130 memset (EV_A, 0, sizeof (struct ev_loop));
2854 loop_init (EV_A_ flags); 3131 loop_init (EV_A_ flags);
2861} 3138}
2862 3139
2863#endif /* multiplicity */ 3140#endif /* multiplicity */
2864 3141
2865#if EV_VERIFY 3142#if EV_VERIFY
2866static void noinline ecb_cold 3143noinline ecb_cold
3144static void
2867verify_watcher (EV_P_ W w) 3145verify_watcher (EV_P_ W w)
2868{ 3146{
2869 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3147 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2870 3148
2871 if (w->pending) 3149 if (w->pending)
2872 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3150 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2873} 3151}
2874 3152
2875static void noinline ecb_cold 3153noinline ecb_cold
3154static void
2876verify_heap (EV_P_ ANHE *heap, int N) 3155verify_heap (EV_P_ ANHE *heap, int N)
2877{ 3156{
2878 int i; 3157 int i;
2879 3158
2880 for (i = HEAP0; i < N + HEAP0; ++i) 3159 for (i = HEAP0; i < N + HEAP0; ++i)
2885 3164
2886 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3165 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2887 } 3166 }
2888} 3167}
2889 3168
2890static void noinline ecb_cold 3169noinline ecb_cold
3170static void
2891array_verify (EV_P_ W *ws, int cnt) 3171array_verify (EV_P_ W *ws, int cnt)
2892{ 3172{
2893 while (cnt--) 3173 while (cnt--)
2894 { 3174 {
2895 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3175 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
2898} 3178}
2899#endif 3179#endif
2900 3180
2901#if EV_FEATURE_API 3181#if EV_FEATURE_API
2902void ecb_cold 3182void ecb_cold
2903ev_verify (EV_P) EV_THROW 3183ev_verify (EV_P) EV_NOEXCEPT
2904{ 3184{
2905#if EV_VERIFY 3185#if EV_VERIFY
2906 int i; 3186 int i;
2907 WL w, w2; 3187 WL w, w2;
2908 3188
2984#endif 3264#endif
2985} 3265}
2986#endif 3266#endif
2987 3267
2988#if EV_MULTIPLICITY 3268#if EV_MULTIPLICITY
3269ecb_cold
2989struct ev_loop * ecb_cold 3270struct ev_loop *
2990#else 3271#else
2991int 3272int
2992#endif 3273#endif
2993ev_default_loop (unsigned int flags) EV_THROW 3274ev_default_loop (unsigned int flags) EV_NOEXCEPT
2994{ 3275{
2995 if (!ev_default_loop_ptr) 3276 if (!ev_default_loop_ptr)
2996 { 3277 {
2997#if EV_MULTIPLICITY 3278#if EV_MULTIPLICITY
2998 EV_P = ev_default_loop_ptr = &default_loop_struct; 3279 EV_P = ev_default_loop_ptr = &default_loop_struct;
3017 3298
3018 return ev_default_loop_ptr; 3299 return ev_default_loop_ptr;
3019} 3300}
3020 3301
3021void 3302void
3022ev_loop_fork (EV_P) EV_THROW 3303ev_loop_fork (EV_P) EV_NOEXCEPT
3023{ 3304{
3024 postfork = 1; 3305 postfork = 1;
3025} 3306}
3026 3307
3027/*****************************************************************************/ 3308/*****************************************************************************/
3031{ 3312{
3032 EV_CB_INVOKE ((W)w, revents); 3313 EV_CB_INVOKE ((W)w, revents);
3033} 3314}
3034 3315
3035unsigned int 3316unsigned int
3036ev_pending_count (EV_P) EV_THROW 3317ev_pending_count (EV_P) EV_NOEXCEPT
3037{ 3318{
3038 int pri; 3319 int pri;
3039 unsigned int count = 0; 3320 unsigned int count = 0;
3040 3321
3041 for (pri = NUMPRI; pri--; ) 3322 for (pri = NUMPRI; pri--; )
3042 count += pendingcnt [pri]; 3323 count += pendingcnt [pri];
3043 3324
3044 return count; 3325 return count;
3045} 3326}
3046 3327
3047void noinline 3328noinline
3329void
3048ev_invoke_pending (EV_P) 3330ev_invoke_pending (EV_P)
3049{ 3331{
3050 pendingpri = NUMPRI; 3332 pendingpri = NUMPRI;
3051 3333
3052 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3334 do
3053 { 3335 {
3054 --pendingpri; 3336 --pendingpri;
3055 3337
3338 /* pendingpri possibly gets modified in the inner loop */
3056 while (pendingcnt [pendingpri]) 3339 while (pendingcnt [pendingpri])
3057 { 3340 {
3058 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3341 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3059 3342
3060 p->w->pending = 0; 3343 p->w->pending = 0;
3061 EV_CB_INVOKE (p->w, p->events); 3344 EV_CB_INVOKE (p->w, p->events);
3062 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
3063 } 3346 }
3064 } 3347 }
3348 while (pendingpri);
3065} 3349}
3066 3350
3067#if EV_IDLE_ENABLE 3351#if EV_IDLE_ENABLE
3068/* make idle watchers pending. this handles the "call-idle */ 3352/* make idle watchers pending. this handles the "call-idle */
3069/* only when higher priorities are idle" logic */ 3353/* only when higher priorities are idle" logic */
3127 } 3411 }
3128} 3412}
3129 3413
3130#if EV_PERIODIC_ENABLE 3414#if EV_PERIODIC_ENABLE
3131 3415
3132static void noinline 3416noinline
3417static void
3133periodic_recalc (EV_P_ ev_periodic *w) 3418periodic_recalc (EV_P_ ev_periodic *w)
3134{ 3419{
3135 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3420 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3136 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3421 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3137 3422
3195 } 3480 }
3196} 3481}
3197 3482
3198/* simply recalculate all periodics */ 3483/* simply recalculate all periodics */
3199/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3484/* TODO: maybe ensure that at least one event happens when jumping forward? */
3200static void noinline ecb_cold 3485noinline ecb_cold
3486static void
3201periodics_reschedule (EV_P) 3487periodics_reschedule (EV_P)
3202{ 3488{
3203 int i; 3489 int i;
3204 3490
3205 /* adjust periodics after time jump */ 3491 /* adjust periodics after time jump */
3218 reheap (periodics, periodiccnt); 3504 reheap (periodics, periodiccnt);
3219} 3505}
3220#endif 3506#endif
3221 3507
3222/* adjust all timers by a given offset */ 3508/* adjust all timers by a given offset */
3223static void noinline ecb_cold 3509noinline ecb_cold
3510static void
3224timers_reschedule (EV_P_ ev_tstamp adjust) 3511timers_reschedule (EV_P_ ev_tstamp adjust)
3225{ 3512{
3226 int i; 3513 int i;
3227 3514
3228 for (i = 0; i < timercnt; ++i) 3515 for (i = 0; i < timercnt; ++i)
3475 3762
3476 return activecnt; 3763 return activecnt;
3477} 3764}
3478 3765
3479void 3766void
3480ev_break (EV_P_ int how) EV_THROW 3767ev_break (EV_P_ int how) EV_NOEXCEPT
3481{ 3768{
3482 loop_done = how; 3769 loop_done = how;
3483} 3770}
3484 3771
3485void 3772void
3486ev_ref (EV_P) EV_THROW 3773ev_ref (EV_P) EV_NOEXCEPT
3487{ 3774{
3488 ++activecnt; 3775 ++activecnt;
3489} 3776}
3490 3777
3491void 3778void
3492ev_unref (EV_P) EV_THROW 3779ev_unref (EV_P) EV_NOEXCEPT
3493{ 3780{
3494 --activecnt; 3781 --activecnt;
3495} 3782}
3496 3783
3497void 3784void
3498ev_now_update (EV_P) EV_THROW 3785ev_now_update (EV_P) EV_NOEXCEPT
3499{ 3786{
3500 time_update (EV_A_ 1e100); 3787 time_update (EV_A_ 1e100);
3501} 3788}
3502 3789
3503void 3790void
3504ev_suspend (EV_P) EV_THROW 3791ev_suspend (EV_P) EV_NOEXCEPT
3505{ 3792{
3506 ev_now_update (EV_A); 3793 ev_now_update (EV_A);
3507} 3794}
3508 3795
3509void 3796void
3510ev_resume (EV_P) EV_THROW 3797ev_resume (EV_P) EV_NOEXCEPT
3511{ 3798{
3512 ev_tstamp mn_prev = mn_now; 3799 ev_tstamp mn_prev = mn_now;
3513 3800
3514 ev_now_update (EV_A); 3801 ev_now_update (EV_A);
3515 timers_reschedule (EV_A_ mn_now - mn_prev); 3802 timers_reschedule (EV_A_ mn_now - mn_prev);
3554 w->pending = 0; 3841 w->pending = 0;
3555 } 3842 }
3556} 3843}
3557 3844
3558int 3845int
3559ev_clear_pending (EV_P_ void *w) EV_THROW 3846ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3560{ 3847{
3561 W w_ = (W)w; 3848 W w_ = (W)w;
3562 int pending = w_->pending; 3849 int pending = w_->pending;
3563 3850
3564 if (expect_true (pending)) 3851 if (expect_true (pending))
3596 w->active = 0; 3883 w->active = 0;
3597} 3884}
3598 3885
3599/*****************************************************************************/ 3886/*****************************************************************************/
3600 3887
3601void noinline 3888noinline
3889void
3602ev_io_start (EV_P_ ev_io *w) EV_THROW 3890ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3603{ 3891{
3604 int fd = w->fd; 3892 int fd = w->fd;
3605 3893
3606 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
3607 return; 3895 return;
3610 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3898 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3611 3899
3612 EV_FREQUENT_CHECK; 3900 EV_FREQUENT_CHECK;
3613 3901
3614 ev_start (EV_A_ (W)w, 1); 3902 ev_start (EV_A_ (W)w, 1);
3615 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3903 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3616 wlist_add (&anfds[fd].head, (WL)w); 3904 wlist_add (&anfds[fd].head, (WL)w);
3617 3905
3618 /* common bug, apparently */ 3906 /* common bug, apparently */
3619 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3907 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3620 3908
3622 w->events &= ~EV__IOFDSET; 3910 w->events &= ~EV__IOFDSET;
3623 3911
3624 EV_FREQUENT_CHECK; 3912 EV_FREQUENT_CHECK;
3625} 3913}
3626 3914
3627void noinline 3915noinline
3916void
3628ev_io_stop (EV_P_ ev_io *w) EV_THROW 3917ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3629{ 3918{
3630 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
3631 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
3632 return; 3921 return;
3633 3922
3641 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3930 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3642 3931
3643 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
3644} 3933}
3645 3934
3646void noinline 3935noinline
3936void
3647ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3648{ 3938{
3649 if (expect_false (ev_is_active (w))) 3939 if (expect_false (ev_is_active (w)))
3650 return; 3940 return;
3651 3941
3652 ev_at (w) += mn_now; 3942 ev_at (w) += mn_now;
3655 3945
3656 EV_FREQUENT_CHECK; 3946 EV_FREQUENT_CHECK;
3657 3947
3658 ++timercnt; 3948 ++timercnt;
3659 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3949 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3660 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3950 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3661 ANHE_w (timers [ev_active (w)]) = (WT)w; 3951 ANHE_w (timers [ev_active (w)]) = (WT)w;
3662 ANHE_at_cache (timers [ev_active (w)]); 3952 ANHE_at_cache (timers [ev_active (w)]);
3663 upheap (timers, ev_active (w)); 3953 upheap (timers, ev_active (w));
3664 3954
3665 EV_FREQUENT_CHECK; 3955 EV_FREQUENT_CHECK;
3666 3956
3667 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3957 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3668} 3958}
3669 3959
3670void noinline 3960noinline
3961void
3671ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3962ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3672{ 3963{
3673 clear_pending (EV_A_ (W)w); 3964 clear_pending (EV_A_ (W)w);
3674 if (expect_false (!ev_is_active (w))) 3965 if (expect_false (!ev_is_active (w)))
3675 return; 3966 return;
3676 3967
3695 ev_stop (EV_A_ (W)w); 3986 ev_stop (EV_A_ (W)w);
3696 3987
3697 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3698} 3989}
3699 3990
3700void noinline 3991noinline
3992void
3701ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3993ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3702{ 3994{
3703 EV_FREQUENT_CHECK; 3995 EV_FREQUENT_CHECK;
3704 3996
3705 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3706 3998
3723 4015
3724 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3725} 4017}
3726 4018
3727ev_tstamp 4019ev_tstamp
3728ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4020ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3729{ 4021{
3730 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4022 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3731} 4023}
3732 4024
3733#if EV_PERIODIC_ENABLE 4025#if EV_PERIODIC_ENABLE
3734void noinline 4026noinline
4027void
3735ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4028ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3736{ 4029{
3737 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
3738 return; 4031 return;
3739 4032
3740 if (w->reschedule_cb) 4033 if (w->reschedule_cb)
3749 4042
3750 EV_FREQUENT_CHECK; 4043 EV_FREQUENT_CHECK;
3751 4044
3752 ++periodiccnt; 4045 ++periodiccnt;
3753 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4046 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3754 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4047 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3755 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4048 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3756 ANHE_at_cache (periodics [ev_active (w)]); 4049 ANHE_at_cache (periodics [ev_active (w)]);
3757 upheap (periodics, ev_active (w)); 4050 upheap (periodics, ev_active (w));
3758 4051
3759 EV_FREQUENT_CHECK; 4052 EV_FREQUENT_CHECK;
3760 4053
3761 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4054 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3762} 4055}
3763 4056
3764void noinline 4057noinline
4058void
3765ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4059ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3766{ 4060{
3767 clear_pending (EV_A_ (W)w); 4061 clear_pending (EV_A_ (W)w);
3768 if (expect_false (!ev_is_active (w))) 4062 if (expect_false (!ev_is_active (w)))
3769 return; 4063 return;
3770 4064
3787 ev_stop (EV_A_ (W)w); 4081 ev_stop (EV_A_ (W)w);
3788 4082
3789 EV_FREQUENT_CHECK; 4083 EV_FREQUENT_CHECK;
3790} 4084}
3791 4085
3792void noinline 4086noinline
4087void
3793ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4088ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3794{ 4089{
3795 /* TODO: use adjustheap and recalculation */ 4090 /* TODO: use adjustheap and recalculation */
3796 ev_periodic_stop (EV_A_ w); 4091 ev_periodic_stop (EV_A_ w);
3797 ev_periodic_start (EV_A_ w); 4092 ev_periodic_start (EV_A_ w);
3798} 4093}
3802# define SA_RESTART 0 4097# define SA_RESTART 0
3803#endif 4098#endif
3804 4099
3805#if EV_SIGNAL_ENABLE 4100#if EV_SIGNAL_ENABLE
3806 4101
3807void noinline 4102noinline
4103void
3808ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4104ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3809{ 4105{
3810 if (expect_false (ev_is_active (w))) 4106 if (expect_false (ev_is_active (w)))
3811 return; 4107 return;
3812 4108
3813 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4109 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3884 } 4180 }
3885 4181
3886 EV_FREQUENT_CHECK; 4182 EV_FREQUENT_CHECK;
3887} 4183}
3888 4184
3889void noinline 4185noinline
4186void
3890ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4187ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3891{ 4188{
3892 clear_pending (EV_A_ (W)w); 4189 clear_pending (EV_A_ (W)w);
3893 if (expect_false (!ev_is_active (w))) 4190 if (expect_false (!ev_is_active (w)))
3894 return; 4191 return;
3895 4192
3926#endif 4223#endif
3927 4224
3928#if EV_CHILD_ENABLE 4225#if EV_CHILD_ENABLE
3929 4226
3930void 4227void
3931ev_child_start (EV_P_ ev_child *w) EV_THROW 4228ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3932{ 4229{
3933#if EV_MULTIPLICITY 4230#if EV_MULTIPLICITY
3934 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4231 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3935#endif 4232#endif
3936 if (expect_false (ev_is_active (w))) 4233 if (expect_false (ev_is_active (w)))
3943 4240
3944 EV_FREQUENT_CHECK; 4241 EV_FREQUENT_CHECK;
3945} 4242}
3946 4243
3947void 4244void
3948ev_child_stop (EV_P_ ev_child *w) EV_THROW 4245ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3949{ 4246{
3950 clear_pending (EV_A_ (W)w); 4247 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4248 if (expect_false (!ev_is_active (w)))
3952 return; 4249 return;
3953 4250
3970 4267
3971#define DEF_STAT_INTERVAL 5.0074891 4268#define DEF_STAT_INTERVAL 5.0074891
3972#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4269#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3973#define MIN_STAT_INTERVAL 0.1074891 4270#define MIN_STAT_INTERVAL 0.1074891
3974 4271
3975static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4272noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3976 4273
3977#if EV_USE_INOTIFY 4274#if EV_USE_INOTIFY
3978 4275
3979/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4276/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3980# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4277# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3981 4278
3982static void noinline 4279noinline
4280static void
3983infy_add (EV_P_ ev_stat *w) 4281infy_add (EV_P_ ev_stat *w)
3984{ 4282{
3985 w->wd = inotify_add_watch (fs_fd, w->path, 4283 w->wd = inotify_add_watch (fs_fd, w->path,
3986 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4284 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3987 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4285 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4051 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4349 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4052 ev_timer_again (EV_A_ &w->timer); 4350 ev_timer_again (EV_A_ &w->timer);
4053 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4351 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4054} 4352}
4055 4353
4056static void noinline 4354noinline
4355static void
4057infy_del (EV_P_ ev_stat *w) 4356infy_del (EV_P_ ev_stat *w)
4058{ 4357{
4059 int slot; 4358 int slot;
4060 int wd = w->wd; 4359 int wd = w->wd;
4061 4360
4068 4367
4069 /* remove this watcher, if others are watching it, they will rearm */ 4368 /* remove this watcher, if others are watching it, they will rearm */
4070 inotify_rm_watch (fs_fd, wd); 4369 inotify_rm_watch (fs_fd, wd);
4071} 4370}
4072 4371
4073static void noinline 4372noinline
4373static void
4074infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4374infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4075{ 4375{
4076 if (slot < 0) 4376 if (slot < 0)
4077 /* overflow, need to check for all hash slots */ 4377 /* overflow, need to check for all hash slots */
4078 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4378 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4114 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4414 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4115 ofs += sizeof (struct inotify_event) + ev->len; 4415 ofs += sizeof (struct inotify_event) + ev->len;
4116 } 4416 }
4117} 4417}
4118 4418
4119inline_size void ecb_cold 4419inline_size ecb_cold
4420void
4120ev_check_2625 (EV_P) 4421ev_check_2625 (EV_P)
4121{ 4422{
4122 /* kernels < 2.6.25 are borked 4423 /* kernels < 2.6.25 are borked
4123 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4424 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4124 */ 4425 */
4214#else 4515#else
4215# define EV_LSTAT(p,b) lstat (p, b) 4516# define EV_LSTAT(p,b) lstat (p, b)
4216#endif 4517#endif
4217 4518
4218void 4519void
4219ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4520ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4220{ 4521{
4221 if (lstat (w->path, &w->attr) < 0) 4522 if (lstat (w->path, &w->attr) < 0)
4222 w->attr.st_nlink = 0; 4523 w->attr.st_nlink = 0;
4223 else if (!w->attr.st_nlink) 4524 else if (!w->attr.st_nlink)
4224 w->attr.st_nlink = 1; 4525 w->attr.st_nlink = 1;
4225} 4526}
4226 4527
4227static void noinline 4528noinline
4529static void
4228stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4530stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4229{ 4531{
4230 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4532 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4231 4533
4232 ev_statdata prev = w->attr; 4534 ev_statdata prev = w->attr;
4263 ev_feed_event (EV_A_ w, EV_STAT); 4565 ev_feed_event (EV_A_ w, EV_STAT);
4264 } 4566 }
4265} 4567}
4266 4568
4267void 4569void
4268ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4570ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4269{ 4571{
4270 if (expect_false (ev_is_active (w))) 4572 if (expect_false (ev_is_active (w)))
4271 return; 4573 return;
4272 4574
4273 ev_stat_stat (EV_A_ w); 4575 ev_stat_stat (EV_A_ w);
4294 4596
4295 EV_FREQUENT_CHECK; 4597 EV_FREQUENT_CHECK;
4296} 4598}
4297 4599
4298void 4600void
4299ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4601ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4300{ 4602{
4301 clear_pending (EV_A_ (W)w); 4603 clear_pending (EV_A_ (W)w);
4302 if (expect_false (!ev_is_active (w))) 4604 if (expect_false (!ev_is_active (w)))
4303 return; 4605 return;
4304 4606
4320} 4622}
4321#endif 4623#endif
4322 4624
4323#if EV_IDLE_ENABLE 4625#if EV_IDLE_ENABLE
4324void 4626void
4325ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4627ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4326{ 4628{
4327 if (expect_false (ev_is_active (w))) 4629 if (expect_false (ev_is_active (w)))
4328 return; 4630 return;
4329 4631
4330 pri_adjust (EV_A_ (W)w); 4632 pri_adjust (EV_A_ (W)w);
4335 int active = ++idlecnt [ABSPRI (w)]; 4637 int active = ++idlecnt [ABSPRI (w)];
4336 4638
4337 ++idleall; 4639 ++idleall;
4338 ev_start (EV_A_ (W)w, active); 4640 ev_start (EV_A_ (W)w, active);
4339 4641
4340 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4642 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4341 idles [ABSPRI (w)][active - 1] = w; 4643 idles [ABSPRI (w)][active - 1] = w;
4342 } 4644 }
4343 4645
4344 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4345} 4647}
4346 4648
4347void 4649void
4348ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4650ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4349{ 4651{
4350 clear_pending (EV_A_ (W)w); 4652 clear_pending (EV_A_ (W)w);
4351 if (expect_false (!ev_is_active (w))) 4653 if (expect_false (!ev_is_active (w)))
4352 return; 4654 return;
4353 4655
4367} 4669}
4368#endif 4670#endif
4369 4671
4370#if EV_PREPARE_ENABLE 4672#if EV_PREPARE_ENABLE
4371void 4673void
4372ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4674ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4373{ 4675{
4374 if (expect_false (ev_is_active (w))) 4676 if (expect_false (ev_is_active (w)))
4375 return; 4677 return;
4376 4678
4377 EV_FREQUENT_CHECK; 4679 EV_FREQUENT_CHECK;
4378 4680
4379 ev_start (EV_A_ (W)w, ++preparecnt); 4681 ev_start (EV_A_ (W)w, ++preparecnt);
4380 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4682 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4381 prepares [preparecnt - 1] = w; 4683 prepares [preparecnt - 1] = w;
4382 4684
4383 EV_FREQUENT_CHECK; 4685 EV_FREQUENT_CHECK;
4384} 4686}
4385 4687
4386void 4688void
4387ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4689ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4388{ 4690{
4389 clear_pending (EV_A_ (W)w); 4691 clear_pending (EV_A_ (W)w);
4390 if (expect_false (!ev_is_active (w))) 4692 if (expect_false (!ev_is_active (w)))
4391 return; 4693 return;
4392 4694
4405} 4707}
4406#endif 4708#endif
4407 4709
4408#if EV_CHECK_ENABLE 4710#if EV_CHECK_ENABLE
4409void 4711void
4410ev_check_start (EV_P_ ev_check *w) EV_THROW 4712ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4411{ 4713{
4412 if (expect_false (ev_is_active (w))) 4714 if (expect_false (ev_is_active (w)))
4413 return; 4715 return;
4414 4716
4415 EV_FREQUENT_CHECK; 4717 EV_FREQUENT_CHECK;
4416 4718
4417 ev_start (EV_A_ (W)w, ++checkcnt); 4719 ev_start (EV_A_ (W)w, ++checkcnt);
4418 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4720 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4419 checks [checkcnt - 1] = w; 4721 checks [checkcnt - 1] = w;
4420 4722
4421 EV_FREQUENT_CHECK; 4723 EV_FREQUENT_CHECK;
4422} 4724}
4423 4725
4424void 4726void
4425ev_check_stop (EV_P_ ev_check *w) EV_THROW 4727ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4426{ 4728{
4427 clear_pending (EV_A_ (W)w); 4729 clear_pending (EV_A_ (W)w);
4428 if (expect_false (!ev_is_active (w))) 4730 if (expect_false (!ev_is_active (w)))
4429 return; 4731 return;
4430 4732
4442 EV_FREQUENT_CHECK; 4744 EV_FREQUENT_CHECK;
4443} 4745}
4444#endif 4746#endif
4445 4747
4446#if EV_EMBED_ENABLE 4748#if EV_EMBED_ENABLE
4447void noinline 4749noinline
4750void
4448ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4751ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4449{ 4752{
4450 ev_run (w->other, EVRUN_NOWAIT); 4753 ev_run (w->other, EVRUN_NOWAIT);
4451} 4754}
4452 4755
4453static void 4756static void
4501 ev_idle_stop (EV_A_ idle); 4804 ev_idle_stop (EV_A_ idle);
4502} 4805}
4503#endif 4806#endif
4504 4807
4505void 4808void
4506ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4809ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4507{ 4810{
4508 if (expect_false (ev_is_active (w))) 4811 if (expect_false (ev_is_active (w)))
4509 return; 4812 return;
4510 4813
4511 { 4814 {
4532 4835
4533 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4534} 4837}
4535 4838
4536void 4839void
4537ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4840ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4538{ 4841{
4539 clear_pending (EV_A_ (W)w); 4842 clear_pending (EV_A_ (W)w);
4540 if (expect_false (!ev_is_active (w))) 4843 if (expect_false (!ev_is_active (w)))
4541 return; 4844 return;
4542 4845
4552} 4855}
4553#endif 4856#endif
4554 4857
4555#if EV_FORK_ENABLE 4858#if EV_FORK_ENABLE
4556void 4859void
4557ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4860ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4558{ 4861{
4559 if (expect_false (ev_is_active (w))) 4862 if (expect_false (ev_is_active (w)))
4560 return; 4863 return;
4561 4864
4562 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
4563 4866
4564 ev_start (EV_A_ (W)w, ++forkcnt); 4867 ev_start (EV_A_ (W)w, ++forkcnt);
4565 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4868 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4566 forks [forkcnt - 1] = w; 4869 forks [forkcnt - 1] = w;
4567 4870
4568 EV_FREQUENT_CHECK; 4871 EV_FREQUENT_CHECK;
4569} 4872}
4570 4873
4571void 4874void
4572ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4875ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4573{ 4876{
4574 clear_pending (EV_A_ (W)w); 4877 clear_pending (EV_A_ (W)w);
4575 if (expect_false (!ev_is_active (w))) 4878 if (expect_false (!ev_is_active (w)))
4576 return; 4879 return;
4577 4880
4590} 4893}
4591#endif 4894#endif
4592 4895
4593#if EV_CLEANUP_ENABLE 4896#if EV_CLEANUP_ENABLE
4594void 4897void
4595ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4898ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4596{ 4899{
4597 if (expect_false (ev_is_active (w))) 4900 if (expect_false (ev_is_active (w)))
4598 return; 4901 return;
4599 4902
4600 EV_FREQUENT_CHECK; 4903 EV_FREQUENT_CHECK;
4601 4904
4602 ev_start (EV_A_ (W)w, ++cleanupcnt); 4905 ev_start (EV_A_ (W)w, ++cleanupcnt);
4603 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4906 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4604 cleanups [cleanupcnt - 1] = w; 4907 cleanups [cleanupcnt - 1] = w;
4605 4908
4606 /* cleanup watchers should never keep a refcount on the loop */ 4909 /* cleanup watchers should never keep a refcount on the loop */
4607 ev_unref (EV_A); 4910 ev_unref (EV_A);
4608 EV_FREQUENT_CHECK; 4911 EV_FREQUENT_CHECK;
4609} 4912}
4610 4913
4611void 4914void
4612ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4915ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4613{ 4916{
4614 clear_pending (EV_A_ (W)w); 4917 clear_pending (EV_A_ (W)w);
4615 if (expect_false (!ev_is_active (w))) 4918 if (expect_false (!ev_is_active (w)))
4616 return; 4919 return;
4617 4920
4631} 4934}
4632#endif 4935#endif
4633 4936
4634#if EV_ASYNC_ENABLE 4937#if EV_ASYNC_ENABLE
4635void 4938void
4636ev_async_start (EV_P_ ev_async *w) EV_THROW 4939ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4637{ 4940{
4638 if (expect_false (ev_is_active (w))) 4941 if (expect_false (ev_is_active (w)))
4639 return; 4942 return;
4640 4943
4641 w->sent = 0; 4944 w->sent = 0;
4643 evpipe_init (EV_A); 4946 evpipe_init (EV_A);
4644 4947
4645 EV_FREQUENT_CHECK; 4948 EV_FREQUENT_CHECK;
4646 4949
4647 ev_start (EV_A_ (W)w, ++asynccnt); 4950 ev_start (EV_A_ (W)w, ++asynccnt);
4648 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4951 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4649 asyncs [asynccnt - 1] = w; 4952 asyncs [asynccnt - 1] = w;
4650 4953
4651 EV_FREQUENT_CHECK; 4954 EV_FREQUENT_CHECK;
4652} 4955}
4653 4956
4654void 4957void
4655ev_async_stop (EV_P_ ev_async *w) EV_THROW 4958ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4656{ 4959{
4657 clear_pending (EV_A_ (W)w); 4960 clear_pending (EV_A_ (W)w);
4658 if (expect_false (!ev_is_active (w))) 4961 if (expect_false (!ev_is_active (w)))
4659 return; 4962 return;
4660 4963
4671 4974
4672 EV_FREQUENT_CHECK; 4975 EV_FREQUENT_CHECK;
4673} 4976}
4674 4977
4675void 4978void
4676ev_async_send (EV_P_ ev_async *w) EV_THROW 4979ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4677{ 4980{
4678 w->sent = 1; 4981 w->sent = 1;
4679 evpipe_write (EV_A_ &async_pending); 4982 evpipe_write (EV_A_ &async_pending);
4680} 4983}
4681#endif 4984#endif
4718 5021
4719 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5022 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4720} 5023}
4721 5024
4722void 5025void
4723ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5026ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4724{ 5027{
4725 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5028 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4726
4727 if (expect_false (!once))
4728 {
4729 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4730 return;
4731 }
4732 5029
4733 once->cb = cb; 5030 once->cb = cb;
4734 once->arg = arg; 5031 once->arg = arg;
4735 5032
4736 ev_init (&once->io, once_cb_io); 5033 ev_init (&once->io, once_cb_io);
4749} 5046}
4750 5047
4751/*****************************************************************************/ 5048/*****************************************************************************/
4752 5049
4753#if EV_WALK_ENABLE 5050#if EV_WALK_ENABLE
4754void ecb_cold 5051ecb_cold
5052void
4755ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5053ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4756{ 5054{
4757 int i, j; 5055 int i, j;
4758 ev_watcher_list *wl, *wn; 5056 ev_watcher_list *wl, *wn;
4759 5057
4760 if (types & (EV_IO | EV_EMBED)) 5058 if (types & (EV_IO | EV_EMBED))

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines